diff options
| author | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | 2022-02-17 02:55:41 +0000 |
|---|---|---|
| committer | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | 2022-02-17 02:55:41 +0000 |
| commit | 762e5cbe88a22e941885744ba840915ffa1113f0 (patch) | |
| tree | 65eebdf3f57afdf43b65223c01ce37e72b9101d0 | |
| parent | 2640ea5dd3b48133db41ca57d111c0b04fa9e0e4 (diff) | |
| parent | c4807feea9d365a2c8102b919520de965ae38ccc (diff) | |
| download | freetype-android13-frc-media-swcodec-release.tar.gz | |
Snap for 8191477 from c4807feea9d365a2c8102b919520de965ae38ccc to tm-frc-media-swcodec-releaset_frc_swc_330443040t_frc_swc_330443010android13-frc-media-swcodec-release
Change-Id: Ica3678f284e0b02b6f908fe83a62b91acf65c12e
628 files changed, 20784 insertions, 7771 deletions
diff --git a/.gitignore b/.gitignore index a47f568e6..e4f1510bf 100644 --- a/.gitignore +++ b/.gitignore @@ -1,3 +1,7 @@ -config.mk -objs/vc2010/ -build +/build/ +/config.mk +include/dlg/ +src/dlg/dlg.c +subprojects/* +!subprojects/*.wrap +/tests/data/* diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml new file mode 100644 index 000000000..5140aa7e0 --- /dev/null +++ b/.gitlab-ci.yml @@ -0,0 +1,198 @@ +stages: + - build + +# FIXME: Use --werror once warnings are fixed. +variables: + MESON_ARGS: --fatal-meson-warnings + MESON_ARGS_WINDOWS: ${MESON_ARGS} --force-fallback-for=zlib + +.build windows common: + # See + # https://gitlab.freedesktop.org/gstreamer/gst-ci/container_registry/213 + image: 'registry.freedesktop.org/gstreamer/gst-ci/amd64/windows:v14-master' + stage: 'build' + tags: + - 'docker' + - 'windows' + - '1809' + - 'gstreamer-windows' + +.build linux common: + # See + # https://gitlab.freedesktop.org/freetype/docker-images/container_registry/20896 + image: 'registry.freedesktop.org/freetype/docker-images/debian:latest' + stage: 'build' + +.build macos common: + stage: 'build' + tags: + - 'gst-macos-11.1' + +.build windows meson: + extends: '.build windows common' + variables: + # Make sure any failure in PowerShell scripts is fatal. + ErrorActionPreference: 'Stop' + WarningPreference: 'Stop' + # Uncomment the following key if need to pass custom args, as well with + # the `$env:MESON_ARGS` line in the `script:` blocks. + # MESON_ARGS: >- + # -Dfoo=enabled + # -Dbar=disabled + before_script: + # Make sure meson is up to date, so we don't need to rebuild the image + # with each release. + - pip3 install meson==0.59.1 + - pip3 install -U ninja + script: + # For some reason, options are separated by newlines instead of spaces, + # so we have to replace them first. + #- $env:MESON_ARGS = $env:MESON_ARGS.replace("`n"," ") + # Gitlab executes PowerShell in docker, but `VsDevCmd.bat` is a batch + # script. Environment variables substitutions is done by PowerShell + # before calling `cmd.exe`, that's why we use `$env:FOO` instead of + # `%FOO%`. + - cmd.exe /C "C:\BuildTools\Common7\Tools\VsDevCmd.bat -host_arch=amd64 -arch=$env:ARCH && + meson setup build $env:MESON_ARGS_WINDOWS && + meson compile --verbose -C build && + meson test -C build && + meson test -C build --benchmark" + + +# Format of job names: +# <OS> <Build-Tool> <Build-Params> <Architecture> + + +# Windows jobs +windows meson vs2017 amd64: + extends: '.build windows meson' + variables: + ARCH: 'amd64' + +windows meson vs2017 x86: + extends: '.build windows meson' + variables: + ARCH: 'x86' + + +# Linux Jobs +# Jobs with "libs" in the name force enable libraries. +# They are disabled in rest of the jobs. +linux autotools: + extends: '.build linux common' + script: | + ./autogen.sh + ./configure --with-brotli=no \ + --with-bzip2=no \ + --with-harfbuzz=no \ + --with-png=no \ + --with-zlib=no \ + CC=gcc + + make -j$(nproc) && make install + +linux autotools libs: + extends: '.build linux common' + script: | + ./autogen.sh + ./configure --with-brotli=yes \ + --with-bzip2=yes \ + --with-harfbuzz=yes \ + --with-png=yes \ + --with-zlib=yes \ + CC=gcc + + make -j$(nproc) && make install + +linux autotools libs clang: + extends: '.build linux common' + script: | + ./autogen.sh + ./configure --with-brotli=yes \ + --with-bzip2=yes \ + --with-harfbuzz=yes \ + --with-png=yes \ + --with-zlib=yes \ + CC=clang + + make -j$(nproc) && make install + +linux meson: + extends: '.build linux common' + script: | + meson setup build -Dbrotli=disabled \ + -Dbzip2=disabled \ + -Dharfbuzz=disabled \ + -Dpng=disabled \ + -Dzlib=disabled + + meson compile --verbose -C build + meson install -C build + +linux meson libs: + extends: '.build linux common' + script: | + meson setup build -Dbrotli=enabled \ + -Dbzip2=enabled \ + -Dharfbuzz=disabled \ + -Dpng=disabled \ + -Dzlib=disabled + + meson compile --verbose -C build + meson install -C build + +linux cmake: + extends: '.build linux common' + script: | + cmake -B build -D FT_DISABLE_BROTLI=TRUE \ + -D FT_DISABLE_BZIP2=TRUE \ + -D FT_DISABLE_HARFBUZZ=TRUE \ + -D FT_DISABLE_PNG=TRUE \ + -D FT_DISABLE_ZLIB=TRUE + + cmake --build build --target install + +linux cmake libs: + extends: '.build linux common' + script: | + cmake -B build -D FT_REQUIRE_BROTLI=TRUE \ + -D FT_REQUIRE_BZIP2=TRUE \ + -D FT_REQUIRE_HARFBUZZ=TRUE \ + -D FT_REQUIRE_PNG=TRUE \ + -D FT_REQUIRE_ZLIB=TRUE + + cmake --build build --target install + +macos autotools: + extends: '.build macos common' + before_script: + - '/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"' + script: + - brew install autoconf automake libtool + - ./autogen.sh + - ./configure + - 'make -j$(sysctl -n hw.logicalcpu)' + - make install + +macos autotools clang: + extends: '.build macos common' + before_script: + - '/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"' + script: + - brew install autoconf automake libtool + - ./autogen.sh + - './configure CC=clang' + - 'make -j$(sysctl -n hw.logicalcpu)' + - make install + +macos meson: + extends: '.build macos common' + script: + - pip3 install --upgrade pip + - pip3 install -U meson + - pip3 install --upgrade certifi + - pip3 install -U ninja + + - meson setup build + - meson compile --verbose -C build + - sudo meson install -C build diff --git a/.gitmodules b/.gitmodules new file mode 100644 index 000000000..b452dffb9 --- /dev/null +++ b/.gitmodules @@ -0,0 +1,3 @@ +[submodule "dlg"] + path = subprojects/dlg + url = https://github.com/nyorain/dlg.git @@ -1,10 +1,21 @@ +Behdad Esfahbod (بهداد اسÙهبد) <behdad@behdad.org> <behdad.esfahbod@gmail.com> +Behdad Esfahbod (بهداد اسÙهبد) <behdad@behdad.org> <behdad@google.com> +Behdad Esfahbod (بهداد اسÙهبد) <behdad@behdad.org> +Ewald Hew (Hew Yih Shiuan 丘毅宣) <ewaldhew@gmail.com> +Priyesh Kumar (पà¥à¤°à¤¿à¤¯à¥‡à¤¶ कà¥à¤®à¤¾à¤°) <priyeshkkumar@gmail.com> Alexei Podtelezhnikov (ÐлекÑей Подтележников) <apodtele@gmail.com> -Behdad Esfahbod <behdad@behdad.org> <behdad.esfahbod@gmail.com> -Bram Tassyns <bramt@enfocus.be> bram tassyns <BramT@enfocus.be> -Bram Tassyns <bramt@enfocus.be> <BramT@enfocus.com> +Nikhil Ramakrishnan (निखिल रामकृषà¥à¤£à¤¨) <ramakrishnan.nikhil@gmail.com> +Dominik Röttsches <drott@chromium.org> <drott@google.com> +Kostya Serebryany <kcc@google.com> <konstantin.s.serebryany@gmail.com> Suzuki, Toshiya (鈴木俊哉) <mpsuzuki@hiroshima-u.ac.jp> <sssa@flavor1.ipc.hiroshima-u.ac.jp> Suzuki, Toshiya (鈴木俊哉) <mpsuzuki@hiroshima-u.ac.jp> sssa <sssa@IPA2004-mps.local> +Suzuki, Toshiya (鈴木俊哉) <mpsuzuki@hiroshima-u.ac.jp> sssa <sssa@sssas-powerbook-g4-12.local> Suzuki, Toshiya (鈴木俊哉) <mpsuzuki@hiroshima-u.ac.jp> suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp> +Bram Tassyns <bramt@enfocus.be> bram tassyns <BramT@enfocus.be> +Bram Tassyns <bramt@enfocus.be> <BramT@enfocus.com> +David Turner <david@freetype.org> <david.turner.dev@gmail.com> +David Turner <david@freetype.org> <digit@google.com> +Anuj Verma (अनà¥à¤œ वरà¥à¤®à¤¾) <anujv@iitbhilai.ac.in> Ben Wagner <bungeman@gmail.com> Bungeman <bungeman@gmail.com> -Ewald Hew (Hew Yih Shiuan 丘毅宣) <ewaldhew@gmail.com> -Nikhil Ramakrishnan (निखिल रामकृषà¥à¤£à¤¨) <ramakrishnan.nikhil@gmail.com> +Ben Wagner <bungeman@gmail.com> <bungeman@google.com> +Nikolaus Waxweiler <madigens@gmail.com> <nikolaus.waxweiler@daltonmaag.com> diff --git a/Android.bp b/Android.bp index 127d6e6a3..90c3ce8ac 100644 --- a/Android.bp +++ b/Android.bp @@ -71,6 +71,7 @@ cc_defaults { "src/pshinter/pshinter.c", "src/psnames/psnames.c", "src/raster/raster.c", + "src/sdf/sdf.c", "src/sfnt/sfnt.c", "src/smooth/smooth.c", "src/truetype/truetype.c", diff --git a/CMakeLists.txt b/CMakeLists.txt index 3ed55aad7..4335d66dc 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -1,6 +1,6 @@ # CMakeLists.txt # -# Copyright (C) 2013-2020 by +# Copyright (C) 2013-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # Written originally by John Cary <cary@txcorp.com> @@ -12,13 +12,17 @@ # fully. # # -# The following will 1. create a build directory and 2. change into it and +# The following will (1) create a build directory, and (2) change into it and # call cmake to configure the build with default parameters as a static -# library. See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html -# for information about Debug, Release, etc. builds. +# library. See +# +# https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html +# +# for information about debug or release builds, for example # # cmake -B build -D CMAKE_BUILD_TYPE=Release # +# # For a dynamic library, use # # cmake -B build -D BUILD_SHARED_LIBS=true -D CMAKE_BUILD_TYPE=Release @@ -39,7 +43,8 @@ # # cmake -E chdir build cmake -G Xcode -D IOS_PLATFORM=SIMULATOR64 .. # -# Finally, build the project with: +# +# Finally, build the project with # # cmake --build build # @@ -56,40 +61,47 @@ # # Some notes. # -# . `cmake' creates configuration files in +# - `cmake' creates configuration files in # # <build-directory>/include/freetype/config # # which should be further modified if necessary. # -# . You can use `cmake' directly on a freshly cloned FreeType git +# - You can use `cmake' directly on a freshly cloned FreeType git # repository. # -# . `CMakeLists.txt' is provided as-is since it is normally not used by the +# - `CMakeLists.txt' is provided as-is since it is normally not used by the # developer team. # -# . Set the `FT_WITH_ZLIB', `FT_WITH_BZIP2', `FT_WITH_PNG', -# `FT_WITH_HARFBUZZ', and `FT_WITH_BROTLI' CMake variables to `ON' to -# force using a dependency. Leave a variable undefined (which is the -# default) to use the dependency only if it is available. Example: +# - Set the `FT_REQUIRE_ZLIB', `FT_REQUIRE_BZIP2', `FT_REQUIRE_PNG', +# `FT_REQUIRE_HARFBUZZ', and `FT_REQUIRE_BROTLI' CMake variables to `ON' +# or `TRUE' to force using a dependency. Leave a variable undefined +# (which is the default) to use the dependency only if it is available. +# Example: # -# cmake -B build -D FT_WITH_ZLIB=ON \ -# -D FT_WITH_BZIP2=ON \ -# -D FT_WITH_PNG=ON \ -# -D FT_WITH_HARFBUZZ=ON \ -# -D FT_WITH_BROTLI=ON [...] +# cmake -B build -D FT_REQUIRE_ZLIB=TRUE \ +# -D FT_REQUIRE_BZIP2=TRUE \ +# -D FT_REQUIRE_PNG=TRUE \ +# -D FT_REQUIRE_HARFBUZZ=TRUE \ +# -D FT_REQUIRE_BROTLI=TRUE [...] # -# Set `CMAKE_DISABLE_FIND_PACKAGE_XXX=TRUE' to disable a dependency completely -# (where `XXX' is a CMake package name like `BZip2'). Example for disabling all +# - Set `FT_DISABLE_XXX=TRUE' to disable a dependency completely (where +# `XXX' is a CMake package name like `BZip2'). Example for disabling all # dependencies: # -# cmake -B build -D CMAKE_DISABLE_FIND_PACKAGE_ZLIB=TRUE \ -# -D CMAKE_DISABLE_FIND_PACKAGE_BZip2=TRUE \ -# -D CMAKE_DISABLE_FIND_PACKAGE_PNG=TRUE \ -# -D CMAKE_DISABLE_FIND_PACKAGE_HarfBuzz=TRUE \ -# -D CMAKE_DISABLE_FIND_PACKAGE_BrotliDec=TRUE [...] +# cmake -B build -D FT_DISABLE_ZLIB=TRUE \ +# -D FT_DISABLE_BZIP2=TRUE \ +# -D FT_DISABLE_PNG=TRUE \ +# -D FT_DISABLE_HARFBUZZ=TRUE \ +# -D FT_DISABLE_BROTLI=TRUE [...] +# +# - NOTE: If a package is set as DISABLED, it cannot be set as REQUIRED +# without unsetting the DISABLED value first. For example, if +# `FT_DISABLE_HARFBUZZ=TRUE' has been set (Cache is present), you need to +# call `FT_DISABLE_HARFBUZZ=FALSE' before calling +# `FT_REQUIRE_HARFBUZZ=TRUE'. # -# . Installation of FreeType can be controlled with the CMake variables +# - Installation of FreeType can be controlled with the CMake variables # `SKIP_INSTALL_HEADERS', `SKIP_INSTALL_LIBRARIES', and `SKIP_INSTALL_ALL' # (this is compatible with the same CMake variables in zlib's CMake # support). @@ -103,9 +115,13 @@ if (NOT CMAKE_VERSION VERSION_LESS 3.3) # Allow symbol visibility settings also on static libraries. CMake < 3.3 # only sets the property on a shared library build. cmake_policy(SET CMP0063 NEW) + + # Support new IN_LIST if() operator. + cmake_policy(SET CMP0057 NEW) endif () include(CheckIncludeFile) +include(CMakeDependentOption) # CMAKE_TOOLCHAIN_FILE must be set before `project' is called, which # configures the base build environment and references the toolchain file @@ -146,8 +162,8 @@ endif () project(freetype C) set(VERSION_MAJOR "2") -set(VERSION_MINOR "10") -set(VERSION_PATCH "4") +set(VERSION_MINOR "11") +set(VERSION_PATCH "1") # Generate LIBRARY_VERSION and LIBRARY_SOVERSION. set(LIBTOOL_REGEX "version_info='([0-9]+):([0-9]+):([0-9]+)'") @@ -168,13 +184,37 @@ string(REGEX REPLACE math(EXPR LIBRARY_SOVERSION "${LIBTOOL_CURRENT} - ${LIBTOOL_AGE}") set(LIBRARY_VERSION "${LIBRARY_SOVERSION}.${LIBTOOL_AGE}.${LIBTOOL_REVISION}") -# External dependency library detection is automatic. See the notes at the top -# of this file, for how to force or disable dependencies completely. -option(FT_WITH_ZLIB "Use system zlib instead of internal library." OFF) -option(FT_WITH_BZIP2 "Support bzip2 compressed fonts." OFF) -option(FT_WITH_PNG "Support PNG compressed OpenType embedded bitmaps." OFF) -option(FT_WITH_HARFBUZZ "Improve auto-hinting of OpenType fonts." OFF) -option(FT_WITH_BROTLI "Support compressed WOFF2 fonts." OFF) +# External dependency library detection is automatic. See the notes at the +# top of this file, for how to force or disable dependencies completely. +option(FT_DISABLE_ZLIB + "Disable use of system zlib and use internal zlib library instead." OFF) +cmake_dependent_option(FT_REQUIRE_ZLIB + "Require system zlib instead of internal zlib library." OFF + "NOT FT_DISABLE_ZLIB" OFF) + +option(FT_DISABLE_BZIP2 + "Disable support of bzip2 compressed fonts." OFF) +cmake_dependent_option(FT_REQUIRE_BZIP2 + "Require support of bzip2 compressed fonts." OFF + "NOT FT_DISABLE_BZIP2" OFF) + +option(FT_DISABLE_PNG + "Disable support of PNG compressed OpenType embedded bitmaps." OFF) +cmake_dependent_option(FT_REQUIRE_PNG + "Require support of PNG compressed OpenType embedded bitmaps." OFF + "NOT FT_DISABLE_PNG" OFF) + +option(FT_DISABLE_HARFBUZZ + "Disable HarfBuzz (used for improving auto-hinting of OpenType fonts)." OFF) +cmake_dependent_option(FT_REQUIRE_HARFBUZZ + "Require HarfBuzz for improving auto-hinting of OpenType fonts." OFF + "NOT FT_DISABLE_HARFBUZZ" OFF) + +option(FT_DISABLE_BROTLI + "Disable support of compressed WOFF2 fonts." OFF) +cmake_dependent_option(FT_REQUIRE_BROTLI + "Require support of compressed WOFF2 fonts." OFF + "NOT FT_DISABLE_BROTLI" OFF) # Disallow in-source builds @@ -205,35 +245,45 @@ endif () # Find dependencies -set(HARFBUZZ_MIN_VERSION "1.8.0") -if (FT_WITH_HARFBUZZ) - find_package(HarfBuzz ${HARFBUZZ_MIN_VERSION} REQUIRED) -else () - find_package(HarfBuzz ${HARFBUZZ_MIN_VERSION}) +if (NOT FT_DISABLE_HARFBUZZ) + set(HARFBUZZ_MIN_VERSION "2.0.0") + if (FT_REQUIRE_HARFBUZZ) + find_package(HarfBuzz ${HARFBUZZ_MIN_VERSION} REQUIRED) + else () + find_package(HarfBuzz ${HARFBUZZ_MIN_VERSION}) + endif () endif () -if (FT_WITH_PNG) - find_package(PNG REQUIRED) -else () - find_package(PNG) +if (NOT FT_DISABLE_PNG) + if (FT_REQUIRE_PNG) + find_package(PNG REQUIRED) + else () + find_package(PNG) + endif () endif () -if (FT_WITH_ZLIB) - find_package(ZLIB REQUIRED) -else () - find_package(ZLIB) +if (NOT FT_DISABLE_ZLIB) + if (FT_REQUIRE_ZLIB) + find_package(ZLIB REQUIRED) + else () + find_package(ZLIB) + endif () endif () -if (FT_WITH_BZIP2) - find_package(BZip2 REQUIRED) -else () - find_package(BZip2) +if (NOT FT_DISABLE_BZIP2) + if (FT_REQUIRE_BZIP2) + find_package(BZip2 REQUIRED) + else () + find_package(BZip2) + endif () endif () -if (FT_WITH_BROTLI) - find_package(BrotliDec REQUIRED) -else () - find_package(BrotliDec) +if (NOT FT_DISABLE_BROTLI) + if (FT_REQUIRE_BROTLI) + find_package(BrotliDec REQUIRED) + else () + find_package(BrotliDec) + endif () endif () # Create the configuration file @@ -347,6 +397,7 @@ set(BASE_SRCS src/pshinter/pshinter.c src/psnames/psnames.c src/raster/raster.c + src/sdf/sdf.c src/sfnt/sfnt.c src/smooth/smooth.c src/truetype/truetype.c @@ -357,6 +408,8 @@ set(BASE_SRCS if (UNIX) list(APPEND BASE_SRCS "builds/unix/ftsystem.c") +elseif (WIN32) + list(APPEND BASE_SRCS "builds/windows/ftsystem.c") else () list(APPEND BASE_SRCS "src/base/ftsystem.c") endif () @@ -420,7 +473,7 @@ target_include_directories( PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/include ${CMAKE_CURRENT_SOURCE_DIR}/include - + # Make <ftconfig.h> available for builds/unix/ftsystem.c. ${CMAKE_CURRENT_BINARY_DIR}/include/freetype/config ) @@ -440,6 +493,7 @@ endif () set(PKG_CONFIG_REQUIRED_PRIVATE "") +set(PKG_CONFIG_LIBS_PRIVATE "") if (ZLIB_FOUND) target_link_libraries(freetype PRIVATE ${ZLIB_LIBRARIES}) @@ -449,7 +503,7 @@ endif () if (BZIP2_FOUND) target_link_libraries(freetype PRIVATE ${BZIP2_LIBRARIES}) target_include_directories(freetype PRIVATE ${BZIP2_INCLUDE_DIR}) # not BZIP2_INCLUDE_DIRS - list(APPEND PKG_CONFIG_REQUIRED_PRIVATE "bzip2") + list(APPEND PKG_CONFIG_LIBS_PRIVATE "-lbz2") endif () if (PNG_FOUND) target_link_libraries(freetype PRIVATE ${PNG_LIBRARIES}) @@ -457,9 +511,9 @@ if (PNG_FOUND) target_include_directories(freetype PRIVATE ${PNG_INCLUDE_DIRS}) list(APPEND PKG_CONFIG_REQUIRED_PRIVATE "libpng") endif () -if (HARFBUZZ_FOUND) - target_link_libraries(freetype PRIVATE ${HARFBUZZ_LIBRARIES}) - target_include_directories(freetype PRIVATE ${HARFBUZZ_INCLUDE_DIRS}) +if (HarfBuzz_FOUND) + target_link_libraries(freetype PRIVATE ${HarfBuzz_LIBRARY}) + target_include_directories(freetype PRIVATE ${HarfBuzz_INCLUDE_DIRS}) list(APPEND PKG_CONFIG_REQUIRED_PRIVATE "harfbuzz >= ${HARFBUZZ_MIN_VERSION}") endif () if (BROTLIDEC_FOUND) @@ -491,41 +545,39 @@ endif () if (NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL) # Generate the pkg-config file - if (UNIX) - file(READ "${PROJECT_SOURCE_DIR}/builds/unix/freetype2.in" FREETYPE2_PC_IN) - - string(REPLACE ";" ", " PKG_CONFIG_REQUIRED_PRIVATE "${PKG_CONFIG_REQUIRED_PRIVATE}") - - string(REPLACE "%prefix%" ${CMAKE_INSTALL_PREFIX} - FREETYPE2_PC_IN ${FREETYPE2_PC_IN}) - string(REPLACE "%exec_prefix%" "\${prefix}" - FREETYPE2_PC_IN ${FREETYPE2_PC_IN}) - string(REPLACE "%libdir%" "\${prefix}/${CMAKE_INSTALL_LIBDIR}" - FREETYPE2_PC_IN ${FREETYPE2_PC_IN}) - string(REPLACE "%includedir%" "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}" - FREETYPE2_PC_IN ${FREETYPE2_PC_IN}) - string(REPLACE "%ft_version%" "${LIBTOOL_CURRENT}.${LIBTOOL_REVISION}.${LIBTOOL_AGE}" - FREETYPE2_PC_IN ${FREETYPE2_PC_IN}) - string(REPLACE "%REQUIRES_PRIVATE%" "${PKG_CONFIG_REQUIRED_PRIVATE}" - FREETYPE2_PC_IN ${FREETYPE2_PC_IN}) - string(REPLACE "%LIBS_PRIVATE%" "" # All libs support pkg-config - FREETYPE2_PC_IN ${FREETYPE2_PC_IN}) - - set(FREETYPE2_PC_IN_NAME "${PROJECT_BINARY_DIR}/freetype2.pc") - if (EXISTS "${FREETYPE2_PC_IN_NAME}") - file(READ "${FREETYPE2_PC_IN_NAME}" ORIGINAL_FREETYPE2_PC_IN) - else () - set(ORIGINAL_FREETYPE2_PC_IN "") - endif () - if (NOT (ORIGINAL_FREETYPE2_PC_IN STREQUAL FREETYPE2_PC_IN)) - file(WRITE "${FREETYPE2_PC_IN_NAME}" ${FREETYPE2_PC_IN}) - endif () - - install( - FILES ${PROJECT_BINARY_DIR}/freetype2.pc - DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig - COMPONENT pkgconfig) + file(READ "${PROJECT_SOURCE_DIR}/builds/unix/freetype2.in" FREETYPE2_PC_IN) + + string(REPLACE ";" ", " PKG_CONFIG_REQUIRED_PRIVATE "${PKG_CONFIG_REQUIRED_PRIVATE}") + + string(REPLACE "%prefix%" ${CMAKE_INSTALL_PREFIX} + FREETYPE2_PC_IN ${FREETYPE2_PC_IN}) + string(REPLACE "%exec_prefix%" "\${prefix}" + FREETYPE2_PC_IN ${FREETYPE2_PC_IN}) + string(REPLACE "%libdir%" "\${prefix}/${CMAKE_INSTALL_LIBDIR}" + FREETYPE2_PC_IN ${FREETYPE2_PC_IN}) + string(REPLACE "%includedir%" "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}" + FREETYPE2_PC_IN ${FREETYPE2_PC_IN}) + string(REPLACE "%ft_version%" "${LIBTOOL_CURRENT}.${LIBTOOL_REVISION}.${LIBTOOL_AGE}" + FREETYPE2_PC_IN ${FREETYPE2_PC_IN}) + string(REPLACE "%REQUIRES_PRIVATE%" "${PKG_CONFIG_REQUIRED_PRIVATE}" + FREETYPE2_PC_IN ${FREETYPE2_PC_IN}) + string(REPLACE "%LIBS_PRIVATE%" "${PKG_CONFIG_LIBS_PRIVATE}" + FREETYPE2_PC_IN ${FREETYPE2_PC_IN}) + + set(FREETYPE2_PC_IN_NAME "${PROJECT_BINARY_DIR}/freetype2.pc") + if (EXISTS "${FREETYPE2_PC_IN_NAME}") + file(READ "${FREETYPE2_PC_IN_NAME}" ORIGINAL_FREETYPE2_PC_IN) + else () + set(ORIGINAL_FREETYPE2_PC_IN "") endif () + if (NOT (ORIGINAL_FREETYPE2_PC_IN STREQUAL FREETYPE2_PC_IN)) + file(WRITE "${FREETYPE2_PC_IN_NAME}" ${FREETYPE2_PC_IN}) + endif () + + install( + FILES ${PROJECT_BINARY_DIR}/freetype2.pc + DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig + COMPONENT pkgconfig) include(CMakePackageConfigHelpers) write_basic_package_version_file( @@ -557,7 +609,7 @@ endif () set(CPACK_PACKAGE_NAME ${CMAKE_PROJECT_NAME}) set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "The FreeType font rendering library.") set(CPACK_PACKAGE_DESCRIPTION_FILE "${CMAKE_CURRENT_SOURCE_DIR}/README") -set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/docs/LICENSE.TXT") +set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/LICENSE.TXT") set(CPACK_PACKAGE_VERSION_MAJOR ${VERSION_MAJOR}) set(CPACK_PACKAGE_VERSION_MINOR ${VERSION_MINOR}) diff --git a/LICENSE.TXT b/LICENSE.TXT new file mode 100644 index 000000000..b1def65dd --- /dev/null +++ b/LICENSE.TXT @@ -0,0 +1,42 @@ +FREETYPE LICENSES +----------------- + +The FreeType 2 font engine is copyrighted work and cannot be used +legally without a software license. In order to make this project +usable to a vast majority of developers, we distribute it under two +mutually exclusive open-source licenses. + +This means that *you* must choose *one* of the two licenses described +below, then obey all its terms and conditions when using FreeType 2 in +any of your projects or products. + + - The FreeType License, found in the file `docs/FTL.TXT`, which is + similar to the original BSD license *with* an advertising clause + that forces you to explicitly cite the FreeType project in your + product's documentation. All details are in the license file. + This license is suited to products which don't use the GNU General + Public License. + + Note that this license is compatible to the GNU General Public + License version 3, but not version 2. + + - The GNU General Public License version 2, found in + `docs/GPLv2.TXT` (any later version can be used also), for + programs which already use the GPL. Note that the FTL is + incompatible with GPLv2 due to its advertisement clause. + +The contributed BDF and PCF drivers come with a license similar to +that of the X Window System. It is compatible to the above two +licenses (see files `src/bdf/README` and `src/pcf/README`). The same +holds for the source code files `src/base/fthash.c` and +`include/freetype/internal/fthash.h`; they wer part of the BDF driver +in earlier FreeType versions. + +The gzip module uses the zlib license (see `src/gzip/zlib.h`) which +too is compatible to the above two licenses. + +The MD5 checksum support (only used for debugging in development +builds) is in the public domain. + + +--- end of LICENSE.TXT --- @@ -16,4 +16,7 @@ third_party { month: 10 day: 22 } + security { + tag: "NVD-CPE2.3:cpe:/a:freetype:freetype:2.10.4" + } } @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -1,92 +1,98 @@ - FreeType 2.10.4 - =============== +FreeType 2.11.1 +=============== - Homepage: https://www.freetype.org +Homepage: https://www.freetype.org - FreeType is a freely available software library to render fonts. +FreeType is a freely available software library to render fonts. - It is written in C, designed to be small, efficient, highly - customizable, and portable while capable of producing high-quality - output (glyph images) of most vector and bitmap font formats. +It is written in C, designed to be small, efficient, highly +customizable, and portable while capable of producing high-quality +output (glyph images) of most vector and bitmap font formats. - Please read the docs/CHANGES file, it contains IMPORTANT - INFORMATION. +Please read the `docs/CHANGES` file, it contains IMPORTANT +INFORMATION. - Read the files `docs/INSTALL*' for installation instructions; see - the file `docs/LICENSE.TXT' for the available licenses. +Read the files `docs/INSTALL*` for installation instructions; see the +file `docs/LICENSE.TXT` for the available licenses. - The FreeType 2 API reference is located in `docs/reference/site'; - use the file `index.html' as the top entry point. [Please note that - currently the search function for locally installed documentation - doesn't work due to cross-site scripting issues.] +For using FreeType's git repository instead of a distribution bundle, +please read file `README.git`. - Additional documentation is available as a separate package from our - sites. Go to +The FreeType 2 API reference is located in directory `docs/reference`; +use the file `index.html` as the top entry point. [Please note that +currently the search function for locally installed documentation +doesn't work due to cross-site scripting issues.] - https://download.savannah.gnu.org/releases/freetype/ +Additional documentation is available as a separate package from our +sites. Go to - and download one of the following files. + https://download.savannah.gnu.org/releases/freetype/ - freetype-doc-2.10.4.tar.xz - freetype-doc-2.10.4.tar.gz - ftdoc2104.zip +and download one of the following files. - To view the documentation online, go to + freetype-doc-2.11.1.tar.xz + freetype-doc-2.11.1.tar.gz + ftdoc2111.zip - https://www.freetype.org/freetype2/docs/ +To view the documentation online, go to + https://www.freetype.org/freetype2/docs/ - Mailing Lists - ============= - The preferred way of communication with the FreeType team is using - e-mail lists. +Mailing Lists +------------- - general use and discussion: freetype@nongnu.org - engine internals, porting, etc.: freetype-devel@nongnu.org - announcements: freetype-announce@nongnu.org - git repository tracker: freetype-commit@nongnu.org +The preferred way of communication with the FreeType team is using +e-mail lists. - The lists are moderated; see + general use and discussion: freetype@nongnu.org + engine internals, porting, etc.: freetype-devel@nongnu.org + announcements: freetype-announce@nongnu.org + git repository tracker: freetype-commit@nongnu.org - https://www.freetype.org/contact.html +The lists are moderated; see - how to subscribe. + https://www.freetype.org/contact.html +how to subscribe. - Bugs - ==== - Please submit bug reports at +Bugs +---- - https://savannah.nongnu.org/bugs/?group=freetype +Please submit bug reports at - Alternatively, you might report bugs by e-mail to - `freetype-devel@nongnu.org'. Don't forget to send a detailed - explanation of the problem -- there is nothing worse than receiving - a terse message that only says `it doesn't work'. + https://gitlab.freedesktop.org/freetype/freetype/-/issues +Alternatively, you might report bugs by e-mail to +`freetype-devel@nongnu.org`. Don't forget to send a detailed +explanation of the problem -- there is nothing worse than receiving a +terse message that only says 'it doesn't work'. - Patches - ======= - Please submit patches to the `freetype-devel@nongnu.org' mailing - list -- and thank you in advance for your work on improving - FreeType! +Patches +------- - Details on the process can be found here: +For larger changes please provide merge requests at - https://www.freetype.org/developer.html#patches + https://gitlab.freedesktop.org/freetype/freetype/-/merge_requests +Alternatively, you can send patches to the `freetype-devel@nongnu.org` +mailing list -- and thank you in advance for your work on improving +FreeType! - Enjoy! +Details on the process can be found here: + https://www.freetype.org/developer.html#patches - The FreeType Team + +Enjoy! + + The FreeType Team ---------------------------------------------------------------------- -Copyright (C) 2006-2020 by +Copyright (C) 2006-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, diff --git a/README.git b/README.git index c4f0033c1..ad3c74cad 100644 --- a/README.git +++ b/README.git @@ -1,4 +1,36 @@ -The git archive doesn't contain pre-built configuration scripts for +README.git +========== + + +repository issues +----------------- + +FreeType's official repository site is + + https://gitlab.freedesktop.org/freetype , + +from which the 'freetype.git' and 'freetype-demos.git' repositories +can be cloned in the usual way. + + git clone https://gitlab.freedesktop.org/freetype/freetype.git + git clone https://gitlab.freedesktop.org/freetype/freetype-demos.git + +If you want to use the Savannah mirror instead, you have to do a +slightly different incantation because the repository names contain +digit '2' for historical reasons. + + git clone \ + https://git.savannah.nongnu.org/git/freetype/freetype2.git \ + freetype + git clone \ + https://git.savannah.nongnu.org/git/freetype/freetype2-demos.git \ + freetype-demos + + +standard builds with `configure` +-------------------------------- + +The git repository doesn't contain pre-built configuration scripts for UNIXish platforms. To generate them say sh autogen.sh @@ -10,34 +42,54 @@ which in turn depends on the following packages: autoconf (2.62) The versions given in parentheses are known to work. Newer versions -should work too, of course. Note that autogen.sh also sets up proper -file permissions for the `configure' and auxiliary scripts. +should work too, of course. Note that `autogen.sh` also sets up +proper file permissions for the `configure` and auxiliary scripts. + +The `autogen.sh` script checks whether the versions of the above three +tools match the numbers above. Otherwise it will complain and suggest +either upgrading or using environment variables to point to more +recent versions of the required tools. -The autogen.sh script now checks the version of above three packages -whether they match the numbers above. Otherwise it will complain and -suggest either upgrading or using an environment variable to point to -a more recent version of the required tool(s). +Note that `aclocal` is provided by the 'automake' package on Linux, +and that `libtoolize` is called `glibtoolize` on Darwin (OS X). -Note that `aclocal' is provided by the `automake' package on Linux, -and that `libtoolize' is called `glibtoolize' on Darwin (OS X). +alternative build methods +------------------------- -For static builds which don't use platform specific optimizations, no +For static builds that don't use platform-specific optimizations, no configure script is necessary at all; saying make setup ansi make -should work on all platforms which have GNU make (or makepp). +should work on all platforms that have GNU `make` (or `makepp`). + +A build with `cmake` or `meson` can be done directly from the git +repository. However, if you want to use the `FT_DEBUG_LOGGING` macro +(see file `docs/DEBUG` for more information) it is currently mandatory +to execute `autogen.sh` in advance; this script clones the 'dlg' git +submodule and copies some files into FreeType's source tree. + + +Code of Conduct +--------------- + +Please note that this project is released with a Contributor Code of +Conduct (CoC). By participating in this project you agree to abide by +its terms, which you can find in the following link: + https://www.freedesktop.org/wiki/CodeOfConduct -Similarly, a build with `cmake' can be done directly from the git -repository. +CoC issues may be raised to the project maintainers at the following +address: + wl@gnu.org + apodtele@gmail.com ---------------------------------------------------------------------- -Copyright (C) 2005-2020 by +Copyright (C) 2005-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, diff --git a/autogen.sh b/autogen.sh index 79c4e4e16..8cca7c84a 100755 --- a/autogen.sh +++ b/autogen.sh @@ -1,6 +1,6 @@ #!/bin/sh -# Copyright (C) 2005-2020 by +# Copyright (C) 2005-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -110,7 +110,10 @@ check_tool_version () fi } -if test ! -f ./builds/unix/configure.raw; then +# Solaris 10's shell doesn't like the `!` operator to negate the exit status. +if test -f ./builds/unix/configure.raw; then + : +else echo "You must be in the same directory as \`autogen.sh'." echo "Bootstrapping doesn't work if srcdir != builddir." exit 1 @@ -138,18 +141,25 @@ check_tool_version $ACLOCAL aclocal ACLOCAL 1.10.1 check_tool_version $LIBTOOLIZE libtoolize LIBTOOLIZE 2.2.4 check_tool_version $AUTOCONF autoconf AUTOCONF 2.62 -# This sets freetype_major, freetype_minor, and freetype_patch. -eval `sed -nf version.sed include/freetype/freetype.h` +# This sets FREETYPE version. +eval `sed -n \ +-e 's/^#define *\(FREETYPE_MAJOR\) *\([0-9][0-9]*\).*/\1=\2/p' \ +-e 's/^#define *\(FREETYPE_MINOR\) *\([0-9][0-9]*\).*/\1=\2/p' \ +-e 's/^#define *\(FREETYPE_PATCH\) *\([0-9][0-9]*\).*/\1=\2/p' \ +include/freetype/freetype.h` -# We set freetype-patch to an empty value if it is zero. -if test "$freetype_patch" = ".0"; then - freetype_patch= +if test "$FREETYPE_PATCH" = "0"; then + FREETYPE=$FREETYPE_MAJOR.$FREETYPE_MINOR +else + FREETYPE=$FREETYPE_MAJOR.$FREETYPE_MINOR.$FREETYPE_PATCH fi +echo "FreeType $FREETYPE:" + cd builds/unix echo "generating \`configure.ac'" -sed -e "s;@VERSION@;$freetype_major$freetype_minor$freetype_patch;" \ +sed -e "s;@VERSION@;$FREETYPE;" \ < configure.raw > configure.ac run aclocal -I . --force @@ -162,4 +172,29 @@ cd ../.. chmod +x ./configure +# Copy all necessary 'dlg' files. +copy_submodule_files () +{ + echo "Copying files from \`subprojects/dlg' to \`src/dlg' and \`include/dlg'" + mkdir include/dlg 2> /dev/null + cp $DLG_INC_DIR/output.h include/dlg + cp $DLG_INC_DIR/dlg.h include/dlg + cp $DLG_SRC_DIR/* src/dlg +} + +if test -d ".git"; then + DLG_INC_DIR=subprojects/dlg/include/dlg + DLG_SRC_DIR=subprojects/dlg/src/dlg + + if test -d "$DLG_INC_DIR"; then + : + else + echo "Checking out submodule in \`subprojects/dlg':" + git submodule init + git submodule update + fi + + copy_submodule_files +fi + # EOF diff --git a/builds/amiga/README b/builds/amiga/README index c55252776..4ec8770ba 100644 --- a/builds/amiga/README +++ b/builds/amiga/README @@ -1,7 +1,7 @@ README for the builds/amiga subdirectory. -Copyright (C) 2005-2020 by +Copyright (C) 2005-2021 by Werner Lemberg and Detlef Würkner. This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/amiga/include/config/ftconfig.h b/builds/amiga/include/config/ftconfig.h index 4976c75fa..6deea6b7e 100644 --- a/builds/amiga/include/config/ftconfig.h +++ b/builds/amiga/include/config/ftconfig.h @@ -4,7 +4,7 @@ /* */ /* Amiga-specific configuration file (specification only). */ /* */ -/* Copyright (C) 2005-2020 by */ +/* Copyright (C) 2005-2021 by */ /* Werner Lemberg and Detlef Würkner. */ /* */ /* This file is part of the FreeType project, and may only be used, */ diff --git a/builds/amiga/include/config/ftmodule.h b/builds/amiga/include/config/ftmodule.h index 6035bf016..873537cab 100644 --- a/builds/amiga/include/config/ftmodule.h +++ b/builds/amiga/include/config/ftmodule.h @@ -4,7 +4,7 @@ /* */ /* Amiga-specific FreeType module selection. */ /* */ -/* Copyright (C) 2005-2020 by */ +/* Copyright (C) 2005-2021 by */ /* Werner Lemberg and Detlef Würkner. */ /* */ /* This file is part of the FreeType project, and may only be used, */ diff --git a/builds/amiga/makefile b/builds/amiga/makefile index 50315f381..ed7c780b3 100644 --- a/builds/amiga/makefile +++ b/builds/amiga/makefile @@ -5,7 +5,7 @@ # -# Copyright (C) 2005-2020 by +# Copyright (C) 2005-2021 by # Werner Lemberg and Detlef Würkner. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/amiga/makefile.os4 b/builds/amiga/makefile.os4 index cd5151c6c..58c89208b 100644 --- a/builds/amiga/makefile.os4 +++ b/builds/amiga/makefile.os4 @@ -4,7 +4,7 @@ # -# Copyright (C) 2005-2020 by +# Copyright (C) 2005-2021 by # Werner Lemberg and Detlef Würkner. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/amiga/smakefile b/builds/amiga/smakefile index fa4167658..aaddd1995 100644 --- a/builds/amiga/smakefile +++ b/builds/amiga/smakefile @@ -3,7 +3,7 @@ # -# Copyright (C) 2005-2020 by +# Copyright (C) 2005-2021 by # Werner Lemberg and Detlef Würkner. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/amiga/src/base/ftdebug.c b/builds/amiga/src/base/ftdebug.c index 6510d206a..dc7e968db 100644 --- a/builds/amiga/src/base/ftdebug.c +++ b/builds/amiga/src/base/ftdebug.c @@ -4,7 +4,7 @@ * * Debugging and logging component for amiga (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, Werner Lemberg, and Detlef Wuerkner. * * This file is part of the FreeType project, and may only be used, diff --git a/builds/amiga/src/base/ftsystem.c b/builds/amiga/src/base/ftsystem.c index 1dfbd6615..5c69e3ac9 100644 --- a/builds/amiga/src/base/ftsystem.c +++ b/builds/amiga/src/base/ftsystem.c @@ -4,7 +4,7 @@ /* */ /* Amiga-specific FreeType low-level system interface (body). */ /* */ -/* Copyright (C) 1996-2020 by */ +/* Copyright (C) 1996-2021 by */ /* David Turner, Robert Wilhelm, Werner Lemberg and Detlef Würkner. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -264,7 +264,7 @@ Free_VecPooled( APTR poolHeader, stream->descriptor.pointer = NULL; stream->size = 0; - stream->base = 0; + stream->base = NULL; } diff --git a/builds/ansi/ansi-def.mk b/builds/ansi/ansi-def.mk index 9642098da..218d5c0d1 100644 --- a/builds/ansi/ansi-def.mk +++ b/builds/ansi/ansi-def.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -13,11 +13,11 @@ # fully. -DELETE := rm -f -CAT := cat -SEP := / -BUILD_DIR := $(TOP_DIR)/builds/ansi -PLATFORM := ansi +DELETE := rm -f +CAT := cat +SEP := / +PLATFORM_DIR := $(TOP_DIR)/builds/ansi +PLATFORM := ansi # This is used for `make refdoc' and `make refdoc-venv' # @@ -64,14 +64,14 @@ T := -o$(space) # # These should concern: debug output, optimization & warnings. # -# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# Use the ANSIFLAGS variable to define the compiler flags used to enforce # ANSI compliance. # CFLAGS ?= -c # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. # -ANSIFLAGS := +ANSIFLAGS ?= # EOF diff --git a/builds/ansi/ansi.mk b/builds/ansi/ansi.mk index c24480303..b36c64e2f 100644 --- a/builds/ansi/ansi.mk +++ b/builds/ansi/ansi.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/atari/README.TXT b/builds/atari/README.TXT index ffe65456d..1300817b2 100644 --- a/builds/atari/README.TXT +++ b/builds/atari/README.TXT @@ -15,7 +15,7 @@ To compile FreeType 2 as a library the following changes must be applied: INCLUDE;E:\freetype2\include -- The file `freetype2/include/Ft2build.h' must be patched as follows to +- The file `freetype/include/Ft2build.h' must be patched as follows to include ATARI.H: #ifndef FT2_BUILD_GENERIC_H_ @@ -40,7 +40,7 @@ ge„ndert werden: INCLUDE;E:\freetype2\include -- In der Datei freetype2/include/Ft2build.h muss zu Beginn +- In der Datei freetype/include/Ft2build.h muss zu Beginn ein #include "ATARI.H" wie folgt eingefgt werden: #ifndef FT2_BUILD_GENERIC_H_ diff --git a/builds/beos/beos-def.mk b/builds/beos/beos-def.mk index 5ae7ed8fd..d7d63b37c 100644 --- a/builds/beos/beos-def.mk +++ b/builds/beos/beos-def.mk @@ -5,7 +5,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -15,11 +15,11 @@ # fully. -DELETE := rm -f -CAT := cat -SEP := / -BUILD_DIR := $(TOP_DIR)/builds/beos -PLATFORM := beos +DELETE := rm -f +CAT := cat +SEP := / +PLATFORM_DIR := $(TOP_DIR)/builds/beos +PLATFORM := beos # This is used for `make refdoc' and `make refdoc-venv' # @@ -66,14 +66,14 @@ T := -o$(space) # # These should concern: debug output, optimization & warnings. # -# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# Use the ANSIFLAGS variable to define the compiler flags used to enforce # ANSI compliance. # CFLAGS ?= -c # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. # -ANSIFLAGS := +ANSIFLAGS ?= # EOF diff --git a/builds/beos/beos.mk b/builds/beos/beos.mk index 1a082c182..f3e3fbbe9 100644 --- a/builds/beos/beos.mk +++ b/builds/beos/beos.mk @@ -2,7 +2,7 @@ # FreeType 2 configuration rules for a BeOS system # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/beos/detect.mk b/builds/beos/detect.mk index 5b92512a4..521ecae98 100644 --- a/builds/beos/detect.mk +++ b/builds/beos/detect.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -27,11 +27,11 @@ endif ifeq ($(PLATFORM),beos) - DELETE := rm -f - CAT := cat - SEP := / - BUILD_DIR := $(TOP_DIR)/builds/beos - CONFIG_FILE := beos.mk + DELETE := rm -f + CAT := cat + SEP := / + PLATFORM_DIR := $(TOP_DIR)/builds/beos + CONFIG_FILE := beos.mk setup: std_setup diff --git a/builds/cmake/FindBrotliDec.cmake b/builds/cmake/FindBrotliDec.cmake index 7c484c7df..46356b1fd 100644 --- a/builds/cmake/FindBrotliDec.cmake +++ b/builds/cmake/FindBrotliDec.cmake @@ -1,6 +1,6 @@ # FindBrotliDec.cmake # -# Copyright (C) 2019-2020 by +# Copyright (C) 2019-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # Written by Werner Lemberg <wl@gnu.org> @@ -19,7 +19,8 @@ # BROTLIDEC_INCLUDE_DIRS # BROTLIDEC_LIBRARIES -include(FindPkgConfig) +find_package(PkgConfig QUIET) + pkg_check_modules(PC_BROTLIDEC QUIET libbrotlidec) if (PC_BROTLIDEC_VERSION) @@ -41,7 +42,7 @@ find_library(BROTLIDEC_LIBRARIES include(FindPackageHandleStandardArgs) find_package_handle_standard_args( - brotlidec + BrotliDec REQUIRED_VARS BROTLIDEC_INCLUDE_DIRS BROTLIDEC_LIBRARIES FOUND_VAR BROTLIDEC_FOUND VERSION_VAR BROTLIDEC_VERSION) diff --git a/builds/cmake/FindHarfBuzz.cmake b/builds/cmake/FindHarfBuzz.cmake index d489613fd..b481fa415 100644 --- a/builds/cmake/FindHarfBuzz.cmake +++ b/builds/cmake/FindHarfBuzz.cmake @@ -1,4 +1,5 @@ # Copyright (c) 2012, Intel Corporation +# Copyright (c) 2019 Sony Interactive Entertainment Inc. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are met: @@ -23,65 +24,180 @@ # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE # POSSIBILITY OF SUCH DAMAGE. - - -# Try to find HarfBuzz include and library directories. # -# After successful discovery, this will set for inclusion where needed: +# Try to find Harfbuzz include and library directories. # -# HARFBUZZ_INCLUDE_DIRS - containg the HarfBuzz headers -# HARFBUZZ_LIBRARIES - containg the HarfBuzz library +# After successful discovery, this will set for inclusion where needed: +# HarfBuzz_INCLUDE_DIRS - containg the HarfBuzz headers +# HarfBuzz_LIBRARIES - containg the HarfBuzz library + +#[=======================================================================[.rst: +FindHarfBuzz +-------------- + +Find HarfBuzz headers and libraries. + +Imported Targets +^^^^^^^^^^^^^^^^ + +``HarfBuzz::HarfBuzz`` + The HarfBuzz library, if found. + +``HarfBuzz::ICU`` + The HarfBuzz ICU library, if found. -include(FindPkgConfig) +Result Variables +^^^^^^^^^^^^^^^^ + +This will define the following variables in your project: + +``HarfBuzz_FOUND`` + true if (the requested version of) HarfBuzz is available. +``HarfBuzz_VERSION`` + the version of HarfBuzz. +``HarfBuzz_LIBRARIES`` + the libraries to link against to use HarfBuzz. +``HarfBuzz_INCLUDE_DIRS`` + where to find the HarfBuzz headers. +``HarfBuzz_COMPILE_OPTIONS`` + this should be passed to target_compile_options(), if the + target is not used for linking + +#]=======================================================================] + +find_package(PkgConfig QUIET) pkg_check_modules(PC_HARFBUZZ QUIET harfbuzz) +set(HarfBuzz_COMPILE_OPTIONS ${PC_HARFBUZZ_CFLAGS_OTHER}) +set(HarfBuzz_VERSION ${PC_HARFBUZZ_CFLAGS_VERSION}) + +find_path(HarfBuzz_INCLUDE_DIR + NAMES hb.h + HINTS ${PC_HARFBUZZ_INCLUDEDIR} ${PC_HARFBUZZ_INCLUDE_DIRS} + PATH_SUFFIXES harfbuzz +) + +find_library(HarfBuzz_LIBRARY + NAMES ${HarfBuzz_NAMES} harfbuzz + HINTS ${PC_HARFBUZZ_LIBDIR} ${PC_HARFBUZZ_LIBRARY_DIRS} +) + +if (HarfBuzz_INCLUDE_DIR AND NOT HarfBuzz_VERSION) + if (EXISTS "${HarfBuzz_INCLUDE_DIR}/hb-version.h") + file(READ "${HarfBuzz_INCLUDE_DIR}/hb-version.h" _harfbuzz_version_content) + + string(REGEX MATCH "#define +HB_VERSION_STRING +\"([0-9]+\\.[0-9]+\\.[0-9]+)\"" _dummy "${_harfbuzz_version_content}") + set(HarfBuzz_VERSION "${CMAKE_MATCH_1}") + endif () +endif () -find_path(HARFBUZZ_INCLUDE_DIRS - NAMES hb.h - HINTS ${PC_HARFBUZZ_INCLUDEDIR} - ${PC_HARFBUZZ_INCLUDE_DIRS} - PATH_SUFFIXES harfbuzz) - -find_library(HARFBUZZ_LIBRARIES - NAMES harfbuzz - HINTS ${PC_HARFBUZZ_LIBDIR} - ${PC_HARFBUZZ_LIBRARY_DIRS}) - -if (HARFBUZZ_INCLUDE_DIRS) - if (EXISTS "${HARFBUZZ_INCLUDE_DIRS}/hb-version.h") - file(READ "${HARFBUZZ_INCLUDE_DIRS}/hb-version.h" _harfbuzz_version_content) - - string(REGEX MATCH - "#define +HB_VERSION_STRING +\"([0-9]+\\.[0-9]+\\.[0-9]+)\"" - _dummy "${_harfbuzz_version_content}") - set(HARFBUZZ_VERSION "${CMAKE_MATCH_1}") +if ("${HarfBuzz_FIND_VERSION}" VERSION_GREATER "${HarfBuzz_VERSION}") + if (HarfBuzz_FIND_REQUIRED) + message(FATAL_ERROR + "Required version (" ${HarfBuzz_FIND_VERSION} ")" + " is higher than found version (" ${HarfBuzz_VERSION} ")") + else () + message(WARNING + "Required version (" ${HarfBuzz_FIND_VERSION} ")" + " is higher than found version (" ${HarfBuzz_VERSION} ")") + unset(HarfBuzz_VERSION) + unset(HarfBuzz_INCLUDE_DIRS) + unset(HarfBuzz_LIBRARIES) + return () endif () endif () -if ("${harfbuzz_FIND_VERSION}" VERSION_GREATER "${HARFBUZZ_VERSION}") - message(FATAL_ERROR - "Required version (" ${harfbuzz_FIND_VERSION} ")" - " is higher than found version (" ${HARFBUZZ_VERSION} ")") +# Find components +if (HarfBuzz_INCLUDE_DIR AND HarfBuzz_LIBRARY) + set(_HarfBuzz_REQUIRED_LIBS_FOUND ON) + set(HarfBuzz_LIBS_FOUND "HarfBuzz (required): ${HarfBuzz_LIBRARY}") +else () + set(_HarfBuzz_REQUIRED_LIBS_FOUND OFF) + set(HarfBuzz_LIBS_NOT_FOUND "HarfBuzz (required)") endif () -include(FindPackageHandleStandardArgs) -find_package_handle_standard_args( - harfbuzz - REQUIRED_VARS HARFBUZZ_INCLUDE_DIRS HARFBUZZ_LIBRARIES - VERSION_VAR HARFBUZZ_VERSION) +if (NOT CMAKE_VERSION VERSION_LESS 3.3) + if ("ICU" IN_LIST HarfBuzz_FIND_COMPONENTS) + pkg_check_modules(PC_HARFBUZZ_ICU QUIET harfbuzz-icu) + set(HarfBuzz_ICU_COMPILE_OPTIONS ${PC_HARFBUZZ_ICU_CFLAGS_OTHER}) -mark_as_advanced( - HARFBUZZ_INCLUDE_DIRS - HARFBUZZ_LIBRARIES) + find_path(HarfBuzz_ICU_INCLUDE_DIR + NAMES hb-icu.h + HINTS ${PC_HARFBUZZ_ICU_INCLUDEDIR} ${PC_HARFBUZZ_ICU_INCLUDE_DIRS} + PATH_SUFFIXES harfbuzz + ) + + find_library(HarfBuzz_ICU_LIBRARY + NAMES ${HarfBuzz_ICU_NAMES} harfbuzz-icu + HINTS ${PC_HARFBUZZ_ICU_LIBDIR} ${PC_HARFBUZZ_ICU_LIBRARY_DIRS} + ) + + if (HarfBuzz_ICU_LIBRARY) + if (HarfBuzz_FIND_REQUIRED_ICU) + list(APPEND HarfBuzz_LIBS_FOUND "ICU (required): ${HarfBuzz_ICU_LIBRARY}") + else () + list(APPEND HarfBuzz_LIBS_FOUND "ICU (optional): ${HarfBuzz_ICU_LIBRARY}") + endif () + else () + if (HarfBuzz_FIND_REQUIRED_ICU) + set(_HarfBuzz_REQUIRED_LIBS_FOUND OFF) + list(APPEND HarfBuzz_LIBS_NOT_FOUND "ICU (required)") + else () + list(APPEND HarfBuzz_LIBS_NOT_FOUND "ICU (optional)") + endif () + endif () + endif () +endif () + +if (NOT HarfBuzz_FIND_QUIETLY) + if (HarfBuzz_LIBS_FOUND) + message(STATUS "Found the following HarfBuzz libraries:") + foreach (found ${HarfBuzz_LIBS_FOUND}) + message(STATUS " ${found}") + endforeach () + endif () + if (HarfBuzz_LIBS_NOT_FOUND) + message(STATUS "The following HarfBuzz libraries were not found:") + foreach (found ${HarfBuzz_LIBS_NOT_FOUND}) + message(STATUS " ${found}") + endforeach () + endif () +endif () + +include(FindPackageHandleStandardArgs) +find_package_handle_standard_args(HarfBuzz + FOUND_VAR HarfBuzz_FOUND + REQUIRED_VARS HarfBuzz_INCLUDE_DIR HarfBuzz_LIBRARY _HarfBuzz_REQUIRED_LIBS_FOUND + VERSION_VAR HarfBuzz_VERSION +) -# Allow easy linking as in -# -# target_link_libraries(freetype PRIVATE Harfbuzz::Harfbuzz) -# if (NOT CMAKE_VERSION VERSION_LESS 3.1) - if (HARFBUZZ_FOUND AND NOT TARGET Harfbuzz::Harfbuzz) - add_library(Harfbuzz::Harfbuzz INTERFACE IMPORTED) - set_target_properties( - Harfbuzz::Harfbuzz PROPERTIES - INTERFACE_INCLUDE_DIRECTORIES "${HARFBUZZ_INCLUDE_DIRS}") + if (HarfBuzz_LIBRARY AND NOT TARGET HarfBuzz::HarfBuzz) + add_library(HarfBuzz::HarfBuzz UNKNOWN IMPORTED GLOBAL) + set_target_properties(HarfBuzz::HarfBuzz PROPERTIES + IMPORTED_LOCATION "${HarfBuzz_LIBRARY}" + INTERFACE_COMPILE_OPTIONS "${HarfBuzz_COMPILE_OPTIONS}" + INTERFACE_INCLUDE_DIRECTORIES "${HarfBuzz_INCLUDE_DIR}" + ) + endif () + + if (HarfBuzz_ICU_LIBRARY AND NOT TARGET HarfBuzz::ICU) + add_library(HarfBuzz::ICU UNKNOWN IMPORTED GLOBAL) + set_target_properties(HarfBuzz::ICU PROPERTIES + IMPORTED_LOCATION "${HarfBuzz_ICU_LIBRARY}" + INTERFACE_COMPILE_OPTIONS "${HarfBuzz_ICU_COMPILE_OPTIONS}" + INTERFACE_INCLUDE_DIRECTORIES "${HarfBuzz_ICU_INCLUDE_DIR}" + ) endif () endif () + +mark_as_advanced( + HarfBuzz_INCLUDE_DIR + HarfBuzz_ICU_INCLUDE_DIR + HarfBuzz_LIBRARY + HarfBuzz_ICU_LIBRARY +) + +if (HarfBuzz_FOUND) + set(HarfBuzz_LIBRARIES ${HarfBuzz_LIBRARY} ${HarfBuzz_ICU_LIBRARY}) + set(HarfBuzz_INCLUDE_DIRS ${HarfBuzz_INCLUDE_DIR} ${HarfBuzz_ICU_INCLUDE_DIR}) +endif () diff --git a/builds/cmake/iOS.cmake b/builds/cmake/iOS.cmake index 6f46836ad..258654d4c 100644 --- a/builds/cmake/iOS.cmake +++ b/builds/cmake/iOS.cmake @@ -1,6 +1,6 @@ # iOS.cmake # -# Copyright (C) 2014-2020 by +# Copyright (C) 2014-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # Written by David Wimsey <david@wimsey.us> diff --git a/builds/cmake/testbuild.sh b/builds/cmake/testbuild.sh index cc67abd46..c6c637206 100755 --- a/builds/cmake/testbuild.sh +++ b/builds/cmake/testbuild.sh @@ -1,6 +1,6 @@ #!/bin/sh -e -# Copyright (C) 2015-2020 by +# Copyright (C) 2015-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/compiler/ansi-cc.mk b/builds/compiler/ansi-cc.mk index 78b13a490..e73e6fca3 100644 --- a/builds/compiler/ansi-cc.mk +++ b/builds/compiler/ansi-cc.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -59,7 +59,7 @@ T := -o$(space) # # These should concern: debug output, optimization & warnings. # -# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# Use the ANSIFLAGS variable to define the compiler flags used to enforce # ANSI compliance. # CFLAGS ?= -c @@ -68,7 +68,7 @@ CFLAGS ?= -c # # we assume the compiler is already strictly ANSI # -ANSIFLAGS := +ANSIFLAGS ?= # Library linking diff --git a/builds/compiler/bcc-dev.mk b/builds/compiler/bcc-dev.mk index 5f6f161c7..71804529b 100644 --- a/builds/compiler/bcc-dev.mk +++ b/builds/compiler/bcc-dev.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -60,14 +60,14 @@ TE := -e # # These should concern: debug output, optimization & warnings. # -# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# Use the ANSIFLAGS variable to define the compiler flags used to enforce # ANSI compliance. # CFLAGS ?= -q -c -y -d -v -Od -w-par -w-ccc -w-rch -w-pro -w-aus # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. # -ANSIFLAGS := -A +ANSIFLAGS ?= -A # Library linking diff --git a/builds/compiler/bcc.mk b/builds/compiler/bcc.mk index f5e2e8a8d..321db1089 100644 --- a/builds/compiler/bcc.mk +++ b/builds/compiler/bcc.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -60,14 +60,14 @@ TE := -e # # These should concern: debug output, optimization & warnings. # -# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# Use the ANSIFLAGS variable to define the compiler flags used to enforce # ANSI compliance. # CFLAGS ?= -c -q -y -d -v -Od -w-par -w-ccc -w-rch -w-pro -w-aus # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. # -ANSIFLAGS := -A +ANSIFLAGS ?= -A # Library linking diff --git a/builds/compiler/emx.mk b/builds/compiler/emx.mk index bbb76049a..b3b6047e5 100644 --- a/builds/compiler/emx.mk +++ b/builds/compiler/emx.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 2003-2020 by +# Copyright (C) 2003-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -58,14 +58,14 @@ T := -o$(space) # # These should concern: debug output, optimization & warnings. # -# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# Use the ANSIFLAGS variable to define the compiler flags used to enforce # ANSI compliance. # CFLAGS ?= -c -g -O6 -Wall # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. # -ANSIFLAGS := +ANSIFLAGS ?= # Library linking diff --git a/builds/compiler/gcc-dev.mk b/builds/compiler/gcc-dev.mk index 95b5f50de..f01192f7e 100644 --- a/builds/compiler/gcc-dev.mk +++ b/builds/compiler/gcc-dev.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -59,7 +59,7 @@ T := -o$(space) # # These should concern: debug output, optimization & warnings. # -# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# Use the ANSIFLAGS variable to define the compiler flags used to enforce # ANSI compliance. # ifndef CFLAGS @@ -82,8 +82,9 @@ ifndef CFLAGS endif # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. +# You can override this on the command line. # -ANSIFLAGS := -ansi -pedantic +ANSIFLAGS ?= -std=c99 -pedantic # Library linking diff --git a/builds/compiler/gcc.mk b/builds/compiler/gcc.mk index 63cd93b26..ede20b2fc 100644 --- a/builds/compiler/gcc.mk +++ b/builds/compiler/gcc.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -58,14 +58,14 @@ T := -o$(space) # # These should concern: debug output, optimization & warnings. # -# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# Use the ANSIFLAGS variable to define the compiler flags used to enforce # ANSI compliance. # CFLAGS ?= -c -g -O3 -Wall # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. # -ANSIFLAGS := -ansi -pedantic +ANSIFLAGS ?= -std=c99 -pedantic # Library linking diff --git a/builds/compiler/intelc.mk b/builds/compiler/intelc.mk index b3c69b041..e5dcf90b3 100644 --- a/builds/compiler/intelc.mk +++ b/builds/compiler/intelc.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -61,7 +61,7 @@ TE := /Fe # # These should concern: debug output, optimization & warnings. # -# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# Use the ANSIFLAGS variable to define the compiler flags used to enforce # ANSI compliance. # # Note that the Intel C/C++ compiler version 4.5 complains about @@ -74,7 +74,7 @@ CFLAGS ?= /nologo /c /Ox /G5 /W3 /Qwd32 # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. # -ANSIFLAGS := /Qansi_alias /Za +ANSIFLAGS ?= /Qansi_alias /Za # Library linking # diff --git a/builds/compiler/unix-lcc.mk b/builds/compiler/unix-lcc.mk index 26f8e7b7b..40322b4be 100644 --- a/builds/compiler/unix-lcc.mk +++ b/builds/compiler/unix-lcc.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -60,7 +60,7 @@ T := -o$(space) # # These should concern: debug output, optimization & warnings. # -# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# Use the ANSIFLAGS variable to define the compiler flags used to enforce # ANSI compliance. # CFLAGS ?= -c -g @@ -71,7 +71,7 @@ CFLAGS ?= -c -g # # the "-A" flag simply increments verbosity about non ANSI code # -ANSIFLAGS := -A +ANSIFLAGS ?= -A # library linking diff --git a/builds/compiler/visualage.mk b/builds/compiler/visualage.mk index 4a8c8ac14..ebc3e48cf 100644 --- a/builds/compiler/visualage.mk +++ b/builds/compiler/visualage.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/compiler/visualc.mk b/builds/compiler/visualc.mk index a9cf71d8e..dc6998ad1 100644 --- a/builds/compiler/visualc.mk +++ b/builds/compiler/visualc.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -63,14 +63,14 @@ TE := /Fe # # These should concern: debug output, optimization & warnings. # -# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# Use the ANSIFLAGS variable to define the compiler flags used to enforce # ANSI compliance. # CFLAGS ?= /nologo /c /Ox /W3 /WX # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. # -ANSIFLAGS := /Za /D_CRT_SECURE_NO_DEPRECATE +ANSIFLAGS ?= /Za /D_CRT_SECURE_NO_DEPRECATE # Library linking diff --git a/builds/compiler/watcom.mk b/builds/compiler/watcom.mk index 43a9e0668..c1d1b6651 100644 --- a/builds/compiler/watcom.mk +++ b/builds/compiler/watcom.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -60,14 +60,14 @@ T := -FO= # # These should concern: debug output, optimization & warnings. # -# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# Use the ANSIFLAGS variable to define the compiler flags used to enforce # ANSI compliance. # CFLAGS ?= -zq # ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. # -ANSIFLAGS := -za +ANSIFLAGS ?= -za # Library linking diff --git a/builds/compiler/win-lcc.mk b/builds/compiler/win-lcc.mk index 00d9d31da..27fbc3034 100644 --- a/builds/compiler/win-lcc.mk +++ b/builds/compiler/win-lcc.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -60,7 +60,7 @@ T := -Fo # # These should concern: debug output, optimization & warnings. # -# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# Use the ANSIFLAGS variable to define the compiler flags used to enforce # ANSI compliance. # CFLAGS ?= -c -g2 -O @@ -69,7 +69,7 @@ CFLAGS ?= -c -g2 -O # # LCC is pure ANSI anyway! # -ANSIFLAGS := +ANSIFLAGS ?= # library linking diff --git a/builds/detect.mk b/builds/detect.mk index 94627fc05..78e9e750e 100644 --- a/builds/detect.mk +++ b/builds/detect.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -16,7 +16,7 @@ # This sub-Makefile is in charge of detecting the current platform. It sets # the following variables: # -# BUILD_DIR The configuration and system-specific directory. Usually +# PLATFORM_DIR The configuration and system-specific directory. Usually # `builds/$(PLATFORM)' but can be different for custom builds # of the library. # @@ -49,8 +49,8 @@ SEP := / BUILD_CONFIG := $(TOP_DIR)/builds # These two assignments must be delayed. -BUILD_DIR = $(BUILD_CONFIG)/$(PLATFORM) -CONFIG_RULES = $(BUILD_DIR)/$(CONFIG_FILE) +PLATFORM_DIR = $(BUILD_CONFIG)/$(PLATFORM) +CONFIG_RULES = $(PLATFORM_DIR)/$(CONFIG_FILE) # We define the BACKSLASH variable to hold a single back-slash character. # This is needed because a line like @@ -113,7 +113,7 @@ std_setup: $(info ) $(info $(empty) platform $(PLATFORM)) $(info $(empty) compiler $(CC)) - $(info $(empty) configuration directory $(subst /,$(SEP),$(BUILD_DIR))) + $(info $(empty) configuration directory $(subst /,$(SEP),$(PLATFORM_DIR))) $(info $(empty) configuration rules $(subst /,$(SEP),$(CONFIG_RULES))) $(info ) $(info If this does not correspond to your system or settings please remove the file) diff --git a/builds/dos/detect.mk b/builds/dos/detect.mk index f59879478..d95a2caa5 100644 --- a/builds/dos/detect.mk +++ b/builds/dos/detect.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/dos/dos-def.mk b/builds/dos/dos-def.mk index 067d1d42b..f7fbc4d65 100644 --- a/builds/dos/dos-def.mk +++ b/builds/dos/dos-def.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -13,11 +13,11 @@ # fully. -DELETE := del -CAT := type -SEP := $(strip \ ) -BUILD_DIR := $(TOP_DIR)/builds/dos -PLATFORM := dos +DELETE := del +CAT := type +SEP := $(strip \ ) +PLATFORM_DIR := $(TOP_DIR)/builds/dos +PLATFORM := dos # This is used for `make refdoc' and `make refdoc-venv' # diff --git a/builds/dos/dos-emx.mk b/builds/dos/dos-emx.mk index 517320837..dd9947962 100644 --- a/builds/dos/dos-emx.mk +++ b/builds/dos/dos-emx.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 2003-2020 by +# Copyright (C) 2003-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/dos/dos-gcc.mk b/builds/dos/dos-gcc.mk index 638892dbf..9abdabea1 100644 --- a/builds/dos/dos-gcc.mk +++ b/builds/dos/dos-gcc.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/dos/dos-wat.mk b/builds/dos/dos-wat.mk index 4e39d21a5..7ab82afeb 100644 --- a/builds/dos/dos-wat.mk +++ b/builds/dos/dos-wat.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 2003-2020 by +# Copyright (C) 2003-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/exports.mk b/builds/exports.mk index eba966875..67c7c9935 100644 --- a/builds/exports.mk +++ b/builds/exports.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 2005-2020 by +# Copyright (C) 2005-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/freetype.mk b/builds/freetype.mk index 1d7eeb601..bae814556 100644 --- a/builds/freetype.mk +++ b/builds/freetype.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -20,8 +20,8 @@ # The following variables (set by other Makefile components, in the # environment, or on the command line) are used: # -# BUILD_DIR The architecture dependent directory, -# e.g. `$(TOP_DIR)/builds/unix'. Added to INCLUDES also. +# PLATFORM_DIR The architecture-dependent directory, +# e.g., `$(TOP_DIR)/builds/unix'. Added to INCLUDES also. # # OBJ_DIR The directory in which object files are created. # @@ -121,7 +121,7 @@ PROJECT_LIBRARY := $(LIB_DIR)/$(LIBRARY).$A # INCLUDES := $(subst /,$(COMPILER_SEP),$(OBJ_DIR) \ $(DEVEL_DIR) \ - $(BUILD_DIR) \ + $(PLATFORM_DIR) \ $(TOP_DIR)/include) INCLUDE_FLAGS := $(INCLUDES:%=$I%) @@ -150,9 +150,9 @@ endif # # `CPPFLAGS' might be specified by the user in the environment. # -FT_CFLAGS = $(CPPFLAGS) \ - $(CFLAGS) \ - $DFT2_BUILD_LIBRARY +FT_CFLAGS = $(CPPFLAGS) \ + $(CFLAGS) \ + $DFT2_BUILD_LIBRARY FT_COMPILE := $(CC) $(ANSIFLAGS) $(INCLUDE_FLAGS) $(FT_CFLAGS) @@ -175,16 +175,16 @@ OBJECTS_LIST := # changes, the whole library is recompiled. # ifneq ($(wildcard $(OBJ_DIR)/ftoption.h),) - FTOPTION_H := $(OBJ_DIR)/ftoption.h -else ifneq ($(wildcard $(BUILD_DIR)/ftoption.h),) - FTOPTION_H := $(BUILD_DIR)/ftoption.h + FTOPTION_H := $(OBJ_DIR)/ftoption.h +else ifneq ($(wildcard $(PLATFORM_DIR)/ftoption.h),) + FTOPTION_H := $(PLATFORM_DIR)/ftoption.h endif PUBLIC_H := $(wildcard $(PUBLIC_DIR)/*.h) INTERNAL_H := $(wildcard $(INTERNAL_DIR)/*.h) \ $(wildcard $(SERVICES_DIR)/*.h) CONFIG_H := $(wildcard $(CONFIG_DIR)/*.h) \ - $(wildcard $(BUILD_DIR)/config/*.h) \ + $(wildcard $(PLATFORM_DIR)/config/*.h) \ $(FTMODULE_H) \ $(FTOPTION_H) DEVEL_H := $(wildcard $(TOP_DIR)/devel/*.h) @@ -220,6 +220,7 @@ $(FTDEBUG_OBJ): $(FTDEBUG_SRC) $(FREETYPE_H) # include $(SRC_DIR)/base/rules.mk include $(patsubst %,$(SRC_DIR)/%/rules.mk,$(MODULES)) +include $(SRC_DIR)/dlg/rules.mk # ftinit component @@ -260,8 +261,8 @@ endif # All FreeType library objects. # -OBJ_M := $(BASE_OBJ_M) $(BASE_EXT_OBJ) $(DRV_OBJS_M) -OBJ_S := $(BASE_OBJ_S) $(BASE_EXT_OBJ) $(DRV_OBJS_S) +OBJ_M := $(BASE_OBJ_M) $(BASE_EXT_OBJ) $(DRV_OBJS_M) $(DLG_OBJS_M) +OBJ_S := $(BASE_OBJ_S) $(BASE_EXT_OBJ) $(DRV_OBJS_S) $(DLG_OBJS_S) # The target `multi' on the Make command line indicates that we want to diff --git a/builds/link_dos.mk b/builds/link_dos.mk index c1ed1507a..8716be51b 100644 --- a/builds/link_dos.mk +++ b/builds/link_dos.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/link_std.mk b/builds/link_std.mk index 940e67484..03f77721f 100644 --- a/builds/link_std.mk +++ b/builds/link_std.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/mac/ftmac.c b/builds/mac/ftmac.c index 2cb30468c..cd3f4844b 100644 --- a/builds/mac/ftmac.c +++ b/builds/mac/ftmac.c @@ -5,7 +5,7 @@ /* Mac FOND support. Written by just@letterror.com. */ /* Heavily Fixed by mpsuzuki, George Williams and Sean McBride */ /* */ -/* Copyright (C) 1996-2020 by */ +/* Copyright (C) 1996-2021 by */ /* Just van Rossum, David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -447,7 +447,7 @@ typedef short ResourceIndex; stream->descriptor.pointer = NULL; stream->size = 0; - stream->base = 0; + stream->base = NULL; } @@ -939,7 +939,7 @@ typedef short ResourceIndex; if ( lwfn_file_name[0] ) { err = lookup_lwfn_by_fond( pathname, lwfn_file_name, - buff, sizeof ( buff ) ); + buff, sizeof ( buff ) ); if ( !err ) have_lwfn = 1; } @@ -1011,7 +1011,7 @@ typedef short ResourceIndex; old_total_size = total_size; } - if ( FT_ALLOC( buffer, (FT_Long)total_size ) ) + if ( FT_QALLOC( buffer, (FT_Long)total_size ) ) goto Error; /* Second pass: append all POST data to the buffer, add PFB fields. */ @@ -1127,7 +1127,7 @@ typedef short ResourceIndex; return FT_THROW( Invalid_Handle ); sfnt_size = (FT_ULong)GetHandleSize( sfnt ); - if ( FT_ALLOC( sfnt_data, (FT_Long)sfnt_size ) ) + if ( FT_QALLOC( sfnt_data, (FT_Long)sfnt_size ) ) { ReleaseResource( sfnt ); return error; diff --git a/builds/meson/extract_freetype_version.py b/builds/meson/extract_freetype_version.py index 15e87dbcc..ab79fdb3b 100644 --- a/builds/meson/extract_freetype_version.py +++ b/builds/meson/extract_freetype_version.py @@ -1,4 +1,14 @@ #!/usr/bin/env python +# +# Copyright (C) 2020-2021 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + """Extract the FreeType version numbers from `<freetype/freetype.h>`. This script parses the header to extract the version number defined there. diff --git a/builds/meson/extract_libtool_version.py b/builds/meson/extract_libtool_version.py index 0569481b3..4527f11b2 100644 --- a/builds/meson/extract_libtool_version.py +++ b/builds/meson/extract_libtool_version.py @@ -1,4 +1,14 @@ #!/usr/bin/env python +# +# Copyright (C) 2020-2021 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + """Extract the libtool version from `configure.raw`. This script parses the `configure.raw` file to extract the libtool version diff --git a/builds/meson/generate_reference_docs.py b/builds/meson/generate_reference_docs.py index 219017c9d..15d9b0660 100644 --- a/builds/meson/generate_reference_docs.py +++ b/builds/meson/generate_reference_docs.py @@ -1,4 +1,14 @@ #!/usr/bin/env python +# +# Copyright (C) 2020-2021 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + """Generate FreeType reference documentation.""" from __future__ import print_function diff --git a/builds/meson/parse_modules_cfg.py b/builds/meson/parse_modules_cfg.py index e0f760561..aa6e9e176 100644 --- a/builds/meson/parse_modules_cfg.py +++ b/builds/meson/parse_modules_cfg.py @@ -1,4 +1,14 @@ #!/usr/bin/env python +# +# Copyright (C) 2020-2021 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + """Parse modules.cfg and dump its output either as ftmodule.h or a list of base extensions. """ diff --git a/builds/meson/process_ftoption_h.py b/builds/meson/process_ftoption_h.py index b5f80c314..fe6088785 100644 --- a/builds/meson/process_ftoption_h.py +++ b/builds/meson/process_ftoption_h.py @@ -1,4 +1,14 @@ -#!/usr/bin/python +#!/usr/bin/env python +# +# Copyright (C) 2020-2021 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + """Toggle settings in `ftoption.h` file based on command-line arguments. This script takes an `ftoption.h` file as input and rewrites @@ -82,7 +92,7 @@ def main(): line = "#define " + option_name new_lines.append(line) - result = "\n".join(new_lines) + result = "\n".join(new_lines) + "\n" # Sanity check that all command-line options were actually processed. cmdline_options = set(args.enable) | set(args.disable) diff --git a/builds/modules.mk b/builds/modules.mk index ae2e238f1..33fccdf96 100644 --- a/builds/modules.mk +++ b/builds/modules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/os2/detect.mk b/builds/os2/detect.mk index 659b6c4a5..7b8962b19 100644 --- a/builds/os2/detect.mk +++ b/builds/os2/detect.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/os2/os2-def.mk b/builds/os2/os2-def.mk index b09765403..08aab9573 100644 --- a/builds/os2/os2-def.mk +++ b/builds/os2/os2-def.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -13,11 +13,11 @@ # fully. -DELETE := del -CAT := type -SEP := $(strip \ ) -BUILD_DIR := $(TOP_DIR)/builds/os2 -PLATFORM := os2 +DELETE := del +CAT := type +SEP := $(strip \ ) +PLATFORM_DIR := $(TOP_DIR)/builds/os2 +PLATFORM := os2 # This is used for `make refdoc' and `make refdoc-venv' # diff --git a/builds/os2/os2-dev.mk b/builds/os2/os2-dev.mk index 8e2a4eb65..40591ffe3 100644 --- a/builds/os2/os2-dev.mk +++ b/builds/os2/os2-dev.mk @@ -5,7 +5,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/os2/os2-gcc.mk b/builds/os2/os2-gcc.mk index 2bd39ae52..854c46df8 100644 --- a/builds/os2/os2-gcc.mk +++ b/builds/os2/os2-gcc.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/symbian/bld.inf b/builds/symbian/bld.inf index 9739da1c4..b9d000b1a 100644 --- a/builds/symbian/bld.inf +++ b/builds/symbian/bld.inf @@ -2,7 +2,7 @@ // FreeType 2 project for the symbian platform // -// Copyright (C) 2008-2020 by +// Copyright (C) 2008-2021 by // David Turner, Robert Wilhelm, and Werner Lemberg. // // This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/symbian/freetype.mmp b/builds/symbian/freetype.mmp index 90fc6bb88..fa49157ab 100644 --- a/builds/symbian/freetype.mmp +++ b/builds/symbian/freetype.mmp @@ -2,7 +2,7 @@ // FreeType 2 makefile for the symbian platform // -// Copyright (C) 2008-2020 by +// Copyright (C) 2008-2021 by // David Turner, Robert Wilhelm, and Werner Lemberg. // // This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/toplevel.mk b/builds/toplevel.mk index 5de61c113..53b6d6fc1 100644 --- a/builds/toplevel.mk +++ b/builds/toplevel.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -103,6 +103,7 @@ ifneq ($(findstring setup,$(MAKECMDGOALS)),) check_platform := 1 endif + # Include the automatic host platform detection rules when we need to # check the platform. # @@ -112,6 +113,17 @@ ifdef check_platform include $(TOP_DIR)/builds/detect.mk + # For builds directly from the git repository we need to copy files + # from `subprojects/dlg' to `src/dlg' and `include/dlg'. + # + ifeq ($(wildcard $(TOP_DIR)/src/dlg/dlg.*),) + ifeq ($(wildcard $(TOP_DIR)/subprojects/dlg/*),) + copy_submodule: check_out_submodule + endif + + setup: copy_submodule + endif + # This rule makes sense for Unix only to remove files created by a run of # the configure script which hasn't been successful (so that no # `config.mk' has been created). It uses the built-in $(RM) command of @@ -154,6 +166,23 @@ else endif # test check_platform +.PHONY: check_out_submodule copy_submodule + +check_out_submodule: + $(info Checking out submodule in `subprojects/dlg') + git submodule init + git submodule update + +copy_submodule: + $(info Copying files from `subprojects/dlg' to `src/dlg' and `include/dlg') + ifeq ($(wildcard include/dlg),) + mkdir $(subst /,$(SEP),include/dlg) + endif + $(COPY) $(subst /,$(SEP),subprojects/dlg/include/dlg/output.h include/dlg) + $(COPY) $(subst /,$(SEP),subprojects/dlg/include/dlg/dlg.h include/dlg) + $(COPY) $(subst /,$(SEP),subprojects/dlg/src/dlg/dlg.c src/dlg) + + # We always need the list of modules in ftmodule.h. # all setup: $(FTMODULE_H) @@ -197,6 +226,7 @@ patch := $(firstword $(patch)) # else version := $(major).$(minor).$(patch) winversion := $(major)$(minor)$(patch) + version_tag := VER-$(major)-$(minor)-$(patch) # endif @@ -219,7 +249,10 @@ dist: currdir=`pwd` ; \ for f in `find . -wholename '*/.git' -prune \ + -o -name .gitattributes \ -o -name .gitignore \ + -o -name .gitlab-ci.yml \ + -o -name .gitmodules \ -o -name .mailmap \ -o -type d \ -o -print` ; do \ @@ -250,6 +283,10 @@ dist: CONFIG_GUESS = ~/git/config/config.guess CONFIG_SUB = ~/git/config/config.sub +# We also use this repository to access the gnulib script that converts git +# commit messages to a ChangeLog file. +CHANGELOG_SCRIPT = ~/git/config/gitlog-to-changelog + # Don't say `make do-dist'. Always use `make dist' instead. # @@ -267,8 +304,20 @@ do-dist: distclean refdoc cp $(CONFIG_GUESS) builds/unix cp $(CONFIG_SUB) builds/unix + @# Generate `ChangeLog' file with commits since previous release. + $(CHANGELOG_SCRIPT) \ + --format='%B%n' \ + --no-cluster \ + -- `git describe --tags \ + --abbrev=0 \ + $(version_tag)^`..$(version_tag) \ + > ChangeLog + @# Remove intermediate files created by the `refdoc' target. rm -rf docs/markdown rm -f docs/mkdocs.yml + @# Remove more stuff related to git. + rm -rf subprojects + # EOF diff --git a/builds/unix/ax_pthread.m4 b/builds/unix/ax_pthread.m4 new file mode 100644 index 000000000..e5858e50c --- /dev/null +++ b/builds/unix/ax_pthread.m4 @@ -0,0 +1,522 @@ +# =========================================================================== +# https://www.gnu.org/software/autoconf-archive/ax_pthread.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]) +# +# DESCRIPTION +# +# This macro figures out how to build C programs using POSIX threads. It +# sets the PTHREAD_LIBS output variable to the threads library and linker +# flags, and the PTHREAD_CFLAGS output variable to any special C compiler +# flags that are needed. (The user can also force certain compiler +# flags/libs to be tested by setting these environment variables.) +# +# Also sets PTHREAD_CC and PTHREAD_CXX to any special C compiler that is +# needed for multi-threaded programs (defaults to the value of CC +# respectively CXX otherwise). (This is necessary on e.g. AIX to use the +# special cc_r/CC_r compiler alias.) +# +# NOTE: You are assumed to not only compile your program with these flags, +# but also to link with them as well. For example, you might link with +# $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS +# $PTHREAD_CXX $CXXFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS +# +# If you are only building threaded programs, you may wish to use these +# variables in your default LIBS, CFLAGS, and CC: +# +# LIBS="$PTHREAD_LIBS $LIBS" +# CFLAGS="$CFLAGS $PTHREAD_CFLAGS" +# CXXFLAGS="$CXXFLAGS $PTHREAD_CFLAGS" +# CC="$PTHREAD_CC" +# CXX="$PTHREAD_CXX" +# +# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant +# has a nonstandard name, this macro defines PTHREAD_CREATE_JOINABLE to +# that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX). +# +# Also HAVE_PTHREAD_PRIO_INHERIT is defined if pthread is found and the +# PTHREAD_PRIO_INHERIT symbol is defined when compiling with +# PTHREAD_CFLAGS. +# +# ACTION-IF-FOUND is a list of shell commands to run if a threads library +# is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it +# is not found. If ACTION-IF-FOUND is not specified, the default action +# will define HAVE_PTHREAD. +# +# Please let the authors know if this macro fails on any platform, or if +# you have any other suggestions or comments. This macro was based on work +# by SGJ on autoconf scripts for FFTW (http://www.fftw.org/) (with help +# from M. Frigo), as well as ac_pthread and hb_pthread macros posted by +# Alejandro Forero Cuervo to the autoconf macro repository. We are also +# grateful for the helpful feedback of numerous users. +# +# Updated for Autoconf 2.68 by Daniel Richard G. +# +# LICENSE +# +# Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu> +# Copyright (c) 2011 Daniel Richard G. <skunk@iSKUNK.ORG> +# Copyright (c) 2019 Marc Stevens <marc.stevens@cwi.nl> +# +# This program is free software: you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the +# Free Software Foundation, either version 3 of the License, or (at your +# option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General +# Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program. If not, see <https://www.gnu.org/licenses/>. +# +# As a special exception, the respective Autoconf Macro's copyright owner +# gives unlimited permission to copy, distribute and modify the configure +# scripts that are the output of Autoconf when processing the Macro. You +# need not follow the terms of the GNU General Public License when using +# or distributing such scripts, even though portions of the text of the +# Macro appear in them. The GNU General Public License (GPL) does govern +# all other use of the material that constitutes the Autoconf Macro. +# +# This special exception to the GPL applies to versions of the Autoconf +# Macro released by the Autoconf Archive. When you make and distribute a +# modified version of the Autoconf Macro, you may extend this special +# exception to the GPL to apply to your modified version as well. + +#serial 30 + +AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD]) +AC_DEFUN([AX_PTHREAD], [ +AC_REQUIRE([AC_CANONICAL_TARGET]) +AC_REQUIRE([AC_PROG_CC]) +AC_REQUIRE([AC_PROG_SED]) +AC_LANG_PUSH([C]) +ax_pthread_ok=no + +# We used to check for pthread.h first, but this fails if pthread.h +# requires special compiler flags (e.g. on Tru64 or Sequent). +# It gets checked for in the link test anyway. + +# First of all, check if the user has set any of the PTHREAD_LIBS, +# etcetera environment variables, and if threads linking works using +# them: +if test "x$PTHREAD_CFLAGS$PTHREAD_LIBS" != "x"; then + ax_pthread_save_CC="$CC" + ax_pthread_save_CFLAGS="$CFLAGS" + ax_pthread_save_LIBS="$LIBS" + AS_IF([test "x$PTHREAD_CC" != "x"], [CC="$PTHREAD_CC"]) + AS_IF([test "x$PTHREAD_CXX" != "x"], [CXX="$PTHREAD_CXX"]) + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + AC_MSG_CHECKING([for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS]) + AC_LINK_IFELSE([AC_LANG_CALL([], [pthread_join])], [ax_pthread_ok=yes]) + AC_MSG_RESULT([$ax_pthread_ok]) + if test "x$ax_pthread_ok" = "xno"; then + PTHREAD_LIBS="" + PTHREAD_CFLAGS="" + fi + CC="$ax_pthread_save_CC" + CFLAGS="$ax_pthread_save_CFLAGS" + LIBS="$ax_pthread_save_LIBS" +fi + +# We must check for the threads library under a number of different +# names; the ordering is very important because some systems +# (e.g. DEC) have both -lpthread and -lpthreads, where one of the +# libraries is broken (non-POSIX). + +# Create a list of thread flags to try. Items with a "," contain both +# C compiler flags (before ",") and linker flags (after ","). Other items +# starting with a "-" are C compiler flags, and remaining items are +# library names, except for "none" which indicates that we try without +# any flags at all, and "pthread-config" which is a program returning +# the flags for the Pth emulation library. + +ax_pthread_flags="pthreads none -Kthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config" + +# The ordering *is* (sometimes) important. Some notes on the +# individual items follow: + +# pthreads: AIX (must check this before -lpthread) +# none: in case threads are in libc; should be tried before -Kthread and +# other compiler flags to prevent continual compiler warnings +# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h) +# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads), Tru64 +# (Note: HP C rejects this with "bad form for `-t' option") +# -pthreads: Solaris/gcc (Note: HP C also rejects) +# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it +# doesn't hurt to check since this sometimes defines pthreads and +# -D_REENTRANT too), HP C (must be checked before -lpthread, which +# is present but should not be used directly; and before -mthreads, +# because the compiler interprets this as "-mt" + "-hreads") +# -mthreads: Mingw32/gcc, Lynx/gcc +# pthread: Linux, etcetera +# --thread-safe: KAI C++ +# pthread-config: use pthread-config program (for GNU Pth library) + +case $target_os in + + freebsd*) + + # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able) + # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread) + + ax_pthread_flags="-kthread lthread $ax_pthread_flags" + ;; + + hpux*) + + # From the cc(1) man page: "[-mt] Sets various -D flags to enable + # multi-threading and also sets -lpthread." + + ax_pthread_flags="-mt -pthread pthread $ax_pthread_flags" + ;; + + openedition*) + + # IBM z/OS requires a feature-test macro to be defined in order to + # enable POSIX threads at all, so give the user a hint if this is + # not set. (We don't define these ourselves, as they can affect + # other portions of the system API in unpredictable ways.) + + AC_EGREP_CPP([AX_PTHREAD_ZOS_MISSING], + [ +# if !defined(_OPEN_THREADS) && !defined(_UNIX03_THREADS) + AX_PTHREAD_ZOS_MISSING +# endif + ], + [AC_MSG_WARN([IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support.])]) + ;; + + solaris*) + + # On Solaris (at least, for some versions), libc contains stubbed + # (non-functional) versions of the pthreads routines, so link-based + # tests will erroneously succeed. (N.B.: The stubs are missing + # pthread_cleanup_push, or rather a function called by this macro, + # so we could check for that, but who knows whether they'll stub + # that too in a future libc.) So we'll check first for the + # standard Solaris way of linking pthreads (-mt -lpthread). + + ax_pthread_flags="-mt,-lpthread pthread $ax_pthread_flags" + ;; +esac + +# Are we compiling with Clang? + +AC_CACHE_CHECK([whether $CC is Clang], + [ax_cv_PTHREAD_CLANG], + [ax_cv_PTHREAD_CLANG=no + # Note that Autoconf sets GCC=yes for Clang as well as GCC + if test "x$GCC" = "xyes"; then + AC_EGREP_CPP([AX_PTHREAD_CC_IS_CLANG], + [/* Note: Clang 2.7 lacks __clang_[a-z]+__ */ +# if defined(__clang__) && defined(__llvm__) + AX_PTHREAD_CC_IS_CLANG +# endif + ], + [ax_cv_PTHREAD_CLANG=yes]) + fi + ]) +ax_pthread_clang="$ax_cv_PTHREAD_CLANG" + + +# GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC) + +# Note that for GCC and Clang -pthread generally implies -lpthread, +# except when -nostdlib is passed. +# This is problematic using libtool to build C++ shared libraries with pthread: +# [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=25460 +# [2] https://bugzilla.redhat.com/show_bug.cgi?id=661333 +# [3] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=468555 +# To solve this, first try -pthread together with -lpthread for GCC + +AS_IF([test "x$GCC" = "xyes"], + [ax_pthread_flags="-pthread,-lpthread -pthread -pthreads $ax_pthread_flags"]) + +# Clang takes -pthread (never supported any other flag), but we'll try with -lpthread first + +AS_IF([test "x$ax_pthread_clang" = "xyes"], + [ax_pthread_flags="-pthread,-lpthread -pthread"]) + + +# The presence of a feature test macro requesting re-entrant function +# definitions is, on some systems, a strong hint that pthreads support is +# correctly enabled + +case $target_os in + darwin* | hpux* | linux* | osf* | solaris*) + ax_pthread_check_macro="_REENTRANT" + ;; + + aix*) + ax_pthread_check_macro="_THREAD_SAFE" + ;; + + *) + ax_pthread_check_macro="--" + ;; +esac +AS_IF([test "x$ax_pthread_check_macro" = "x--"], + [ax_pthread_check_cond=0], + [ax_pthread_check_cond="!defined($ax_pthread_check_macro)"]) + + +if test "x$ax_pthread_ok" = "xno"; then +for ax_pthread_try_flag in $ax_pthread_flags; do + + case $ax_pthread_try_flag in + none) + AC_MSG_CHECKING([whether pthreads work without any flags]) + ;; + + *,*) + PTHREAD_CFLAGS=`echo $ax_pthread_try_flag | sed "s/^\(.*\),\(.*\)$/\1/"` + PTHREAD_LIBS=`echo $ax_pthread_try_flag | sed "s/^\(.*\),\(.*\)$/\2/"` + AC_MSG_CHECKING([whether pthreads work with "$PTHREAD_CFLAGS" and "$PTHREAD_LIBS"]) + ;; + + -*) + AC_MSG_CHECKING([whether pthreads work with $ax_pthread_try_flag]) + PTHREAD_CFLAGS="$ax_pthread_try_flag" + ;; + + pthread-config) + AC_CHECK_PROG([ax_pthread_config], [pthread-config], [yes], [no]) + AS_IF([test "x$ax_pthread_config" = "xno"], [continue]) + PTHREAD_CFLAGS="`pthread-config --cflags`" + PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" + ;; + + *) + AC_MSG_CHECKING([for the pthreads library -l$ax_pthread_try_flag]) + PTHREAD_LIBS="-l$ax_pthread_try_flag" + ;; + esac + + ax_pthread_save_CFLAGS="$CFLAGS" + ax_pthread_save_LIBS="$LIBS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + + # Check for various functions. We must include pthread.h, + # since some functions may be macros. (On the Sequent, we + # need a special flag -Kthread to make this header compile.) + # We check for pthread_join because it is in -lpthread on IRIX + # while pthread_create is in libc. We check for pthread_attr_init + # due to DEC craziness with -lpthreads. We check for + # pthread_cleanup_push because it is one of the few pthread + # functions on Solaris that doesn't have a non-functional libc stub. + # We try pthread_create on general principles. + + AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h> +# if $ax_pthread_check_cond +# error "$ax_pthread_check_macro must be defined" +# endif + static void *some_global = NULL; + static void routine(void *a) + { + /* To avoid any unused-parameter or + unused-but-set-parameter warning. */ + some_global = a; + } + static void *start_routine(void *a) { return a; }], + [pthread_t th; pthread_attr_t attr; + pthread_create(&th, 0, start_routine, 0); + pthread_join(th, 0); + pthread_attr_init(&attr); + pthread_cleanup_push(routine, 0); + pthread_cleanup_pop(0) /* ; */])], + [ax_pthread_ok=yes], + []) + + CFLAGS="$ax_pthread_save_CFLAGS" + LIBS="$ax_pthread_save_LIBS" + + AC_MSG_RESULT([$ax_pthread_ok]) + AS_IF([test "x$ax_pthread_ok" = "xyes"], [break]) + + PTHREAD_LIBS="" + PTHREAD_CFLAGS="" +done +fi + + +# Clang needs special handling, because older versions handle the -pthread +# option in a rather... idiosyncratic way + +if test "x$ax_pthread_clang" = "xyes"; then + + # Clang takes -pthread; it has never supported any other flag + + # (Note 1: This will need to be revisited if a system that Clang + # supports has POSIX threads in a separate library. This tends not + # to be the way of modern systems, but it's conceivable.) + + # (Note 2: On some systems, notably Darwin, -pthread is not needed + # to get POSIX threads support; the API is always present and + # active. We could reasonably leave PTHREAD_CFLAGS empty. But + # -pthread does define _REENTRANT, and while the Darwin headers + # ignore this macro, third-party headers might not.) + + # However, older versions of Clang make a point of warning the user + # that, in an invocation where only linking and no compilation is + # taking place, the -pthread option has no effect ("argument unused + # during compilation"). They expect -pthread to be passed in only + # when source code is being compiled. + # + # Problem is, this is at odds with the way Automake and most other + # C build frameworks function, which is that the same flags used in + # compilation (CFLAGS) are also used in linking. Many systems + # supported by AX_PTHREAD require exactly this for POSIX threads + # support, and in fact it is often not straightforward to specify a + # flag that is used only in the compilation phase and not in + # linking. Such a scenario is extremely rare in practice. + # + # Even though use of the -pthread flag in linking would only print + # a warning, this can be a nuisance for well-run software projects + # that build with -Werror. So if the active version of Clang has + # this misfeature, we search for an option to squash it. + + AC_CACHE_CHECK([whether Clang needs flag to prevent "argument unused" warning when linking with -pthread], + [ax_cv_PTHREAD_CLANG_NO_WARN_FLAG], + [ax_cv_PTHREAD_CLANG_NO_WARN_FLAG=unknown + # Create an alternate version of $ac_link that compiles and + # links in two steps (.c -> .o, .o -> exe) instead of one + # (.c -> exe), because the warning occurs only in the second + # step + ax_pthread_save_ac_link="$ac_link" + ax_pthread_sed='s/conftest\.\$ac_ext/conftest.$ac_objext/g' + ax_pthread_link_step=`AS_ECHO(["$ac_link"]) | sed "$ax_pthread_sed"` + ax_pthread_2step_ac_link="($ac_compile) && (echo ==== >&5) && ($ax_pthread_link_step)" + ax_pthread_save_CFLAGS="$CFLAGS" + for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do + AS_IF([test "x$ax_pthread_try" = "xunknown"], [break]) + CFLAGS="-Werror -Wunknown-warning-option $ax_pthread_try -pthread $ax_pthread_save_CFLAGS" + ac_link="$ax_pthread_save_ac_link" + AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])], + [ac_link="$ax_pthread_2step_ac_link" + AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])], + [break]) + ]) + done + ac_link="$ax_pthread_save_ac_link" + CFLAGS="$ax_pthread_save_CFLAGS" + AS_IF([test "x$ax_pthread_try" = "x"], [ax_pthread_try=no]) + ax_cv_PTHREAD_CLANG_NO_WARN_FLAG="$ax_pthread_try" + ]) + + case "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" in + no | unknown) ;; + *) PTHREAD_CFLAGS="$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG $PTHREAD_CFLAGS" ;; + esac + +fi # $ax_pthread_clang = yes + + + +# Various other checks: +if test "x$ax_pthread_ok" = "xyes"; then + ax_pthread_save_CFLAGS="$CFLAGS" + ax_pthread_save_LIBS="$LIBS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + + # Detect AIX lossage: JOINABLE attribute is called UNDETACHED. + AC_CACHE_CHECK([for joinable pthread attribute], + [ax_cv_PTHREAD_JOINABLE_ATTR], + [ax_cv_PTHREAD_JOINABLE_ATTR=unknown + for ax_pthread_attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do + AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>], + [int attr = $ax_pthread_attr; return attr /* ; */])], + [ax_cv_PTHREAD_JOINABLE_ATTR=$ax_pthread_attr; break], + []) + done + ]) + AS_IF([test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xunknown" && \ + test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xPTHREAD_CREATE_JOINABLE" && \ + test "x$ax_pthread_joinable_attr_defined" != "xyes"], + [AC_DEFINE_UNQUOTED([PTHREAD_CREATE_JOINABLE], + [$ax_cv_PTHREAD_JOINABLE_ATTR], + [Define to necessary symbol if this constant + uses a non-standard name on your system.]) + ax_pthread_joinable_attr_defined=yes + ]) + + AC_CACHE_CHECK([whether more special flags are required for pthreads], + [ax_cv_PTHREAD_SPECIAL_FLAGS], + [ax_cv_PTHREAD_SPECIAL_FLAGS=no + case $target_os in + solaris*) + ax_cv_PTHREAD_SPECIAL_FLAGS="-D_POSIX_PTHREAD_SEMANTICS" + ;; + esac + ]) + AS_IF([test "x$ax_cv_PTHREAD_SPECIAL_FLAGS" != "xno" && \ + test "x$ax_pthread_special_flags_added" != "xyes"], + [PTHREAD_CFLAGS="$ax_cv_PTHREAD_SPECIAL_FLAGS $PTHREAD_CFLAGS" + ax_pthread_special_flags_added=yes]) + + AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT], + [ax_cv_PTHREAD_PRIO_INHERIT], + [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]], + [[int i = PTHREAD_PRIO_INHERIT; + return i;]])], + [ax_cv_PTHREAD_PRIO_INHERIT=yes], + [ax_cv_PTHREAD_PRIO_INHERIT=no]) + ]) + AS_IF([test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes" && \ + test "x$ax_pthread_prio_inherit_defined" != "xyes"], + [AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], [1], [Have PTHREAD_PRIO_INHERIT.]) + ax_pthread_prio_inherit_defined=yes + ]) + + CFLAGS="$ax_pthread_save_CFLAGS" + LIBS="$ax_pthread_save_LIBS" + + # More AIX lossage: compile with *_r variant + if test "x$GCC" != "xyes"; then + case $target_os in + aix*) + AS_CASE(["x/$CC"], + [x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6], + [#handle absolute path differently from PATH based program lookup + AS_CASE(["x$CC"], + [x/*], + [ + AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"]) + AS_IF([test "x${CXX}" != "x"], [AS_IF([AS_EXECUTABLE_P([${CXX}_r])],[PTHREAD_CXX="${CXX}_r"])]) + ], + [ + AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC]) + AS_IF([test "x${CXX}" != "x"], [AC_CHECK_PROGS([PTHREAD_CXX],[${CXX}_r],[$CXX])]) + ] + ) + ]) + ;; + esac + fi +fi + +test -n "$PTHREAD_CC" || PTHREAD_CC="$CC" +test -n "$PTHREAD_CXX" || PTHREAD_CXX="$CXX" + +AC_SUBST([PTHREAD_LIBS]) +AC_SUBST([PTHREAD_CFLAGS]) +AC_SUBST([PTHREAD_CC]) +AC_SUBST([PTHREAD_CXX]) + +# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: +if test "x$ax_pthread_ok" = "xyes"; then + ifelse([$1],,[AC_DEFINE([HAVE_PTHREAD],[1],[Define if you have POSIX threads libraries and header files.])],[$1]) + : +else + ax_pthread_ok=no + $2 +fi +AC_LANG_POP +])dnl AX_PTHREAD diff --git a/builds/unix/configure.raw b/builds/unix/configure.raw index bc65e452a..f326872cb 100644 --- a/builds/unix/configure.raw +++ b/builds/unix/configure.raw @@ -2,7 +2,7 @@ # # Process this file with autoconf to produce a configure script. # -# Copyright (C) 2001-2020 by +# Copyright (C) 2001-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -17,7 +17,7 @@ AC_CONFIG_SRCDIR([ftconfig.h.in]) # Don't forget to update `docs/VERSIONS.TXT'! -version_info='23:4:17' +version_info='24:1:18' AC_SUBST([version_info]) ft_version=`echo $version_info | tr : .` AC_SUBST([ft_version]) @@ -97,85 +97,12 @@ esac # checks for header files -AC_HEADER_STDC AC_CHECK_HEADERS([fcntl.h unistd.h]) # checks for typedefs, structures, and compiler characteristics AC_C_CONST -AC_CHECK_SIZEOF([int]) -AC_CHECK_SIZEOF([long]) -AC_TYPE_LONG_LONG_INT - - -# check whether cpp computation of size of int and long in ftconfig.h.in works - -AC_MSG_CHECKING([whether cpp computation of bit length in ftconfig.h.in works]) -orig_CPPFLAGS="${CPPFLAGS}" -CPPFLAGS="-I${srcdir} -I. -I${srcdir}/../../include ${CPPFLAGS}" - -ac_clean_files= -if test ! -f ft2build.h; then - ac_clean_files=ft2build.h - touch ft2build.h -fi - -cat > conftest.c <<\_ACEOF -#include <limits.h> -#define FT_CONFIG_OPTIONS_H <freetype/config/ftoption.h> -#define FT_CONFIG_STANDARD_LIBRARY_H <freetype/config/ftstdlib.h> -#define FT_UINT_MAX UINT_MAX -#define FT_ULONG_MAX ULONG_MAX -#include "ftconfig.h.in" -_ACEOF -echo >> conftest.c "#if FT_SIZEOF_INT == "${ac_cv_sizeof_int} -echo >> conftest.c "ac_cpp_ft_sizeof_int="${ac_cv_sizeof_int} -echo >> conftest.c "#endif" -echo >> conftest.c "#if FT_SIZEOF_LONG == "${ac_cv_sizeof_long} -echo >> conftest.c "ac_cpp_ft_sizeof_long="${ac_cv_sizeof_long} -echo >> conftest.c "#endif" - -${CPP} ${CPPFLAGS} conftest.c | ${GREP} ac_cpp_ft > conftest.sh -eval `cat conftest.sh` -rm -f conftest.* $ac_clean_files - -if test x != "x${ac_cpp_ft_sizeof_int}" \ - -a x != x"${ac_cpp_ft_sizeof_long}"; then - unset ft_use_autoconf_sizeof_types -else - ft_use_autoconf_sizeof_types=yes -fi - -AC_ARG_ENABLE(biarch-config, -[ --enable-biarch-config install biarch ftconfig.h to support multiple - architectures by single file], [], []) - -case :${ft_use_autoconf_sizeof_types}:${enable_biarch_config}: in - :yes:yes:) - AC_MSG_RESULT([broken but use it]) - unset ft_use_autoconf_sizeof_types - ;; - ::no:) - AC_MSG_RESULT([works but ignore it]) - ft_use_autoconf_sizeof_types=yes - ;; - ::yes: | :::) - AC_MSG_RESULT([yes]) - unset ft_use_autoconf_sizeof_types - ;; - *) - AC_MSG_RESULT([no]) - ft_use_autoconf_sizeof_types=yes - ;; -esac - -if test x"${ft_use_autoconf_sizeof_types}" = xyes; then - AC_DEFINE([FT_USE_AUTOCONF_SIZEOF_TYPES], [], - [Define if autoconf sizeof types should be used.]) -fi - -CPPFLAGS="${orig_CPPFLAGS}" AC_ARG_ENABLE([freetype-config], AS_HELP_STRING([--enable-freetype-config], [install freetype-config]), @@ -192,53 +119,59 @@ AC_SUBST(INSTALL_FT2_CONFIG, [$enable_freetype_config]) AC_SYS_LARGEFILE # Here we check whether we can use our mmap file component. +# +# Note that `ftsystem.c` for Windows has its own mmap-like implementation +# not covered by `AC_FUNC_MMAP` and/or `FT_UNMAP_PARAM`. AC_ARG_ENABLE([mmap], AS_HELP_STRING([--disable-mmap], [do not check mmap() and do not use]), [enable_mmap="no"], [enable_mmap="yes"]) if test "x${enable_mmap}" != "xno"; then - AC_FUNC_MMAP -fi -if test "x${enable_mmap}" = "xno" \ - -o "$ac_cv_func_mmap_fixed_mapped" != "yes"; then - FTSYS_SRC='$(BASE_DIR)/ftsystem.c' -else - FTSYS_SRC='$(BUILD_DIR)/ftsystem.c' + case "$host" in + *-*-mingw*) + AC_MSG_CHECKING([for working mmap]) + AC_MSG_RESULT([using MapViewOfFile in Windows]) + FTSYS_SRC='$(TOP_DIR)/builds/windows/ftsystem.c' + ;; + *) + AC_FUNC_MMAP + if test "$ac_cv_func_mmap_fixed_mapped" = "yes"; then + FTSYS_SRC='$(PLATFORM_DIR)/ftsystem.c' - AC_CHECK_DECLS([munmap], - [], - [], - [ + AC_CHECK_DECLS([munmap], + [], + [], + [ #ifdef HAVE_UNISTD_H #include <unistd.h> #endif #include <sys/mman.h> - ]) + ]) - FT_MUNMAP_PARAM + FT_MUNMAP_PARAM + fi + ;; + esac +fi + +if test -z "$FTSYS_SRC"; then + FTSYS_SRC='$(BASE_DIR)/ftsystem.c' fi AC_SUBST([FTSYS_SRC]) + AC_CHECK_FUNCS([memcpy memmove]) # get compiler flags right # -# We try to make the compiler work for C89-strict source. Even if the -# C compiler is gcc and C89 flags are available, some system headers -# (e.g., Android Bionic libc) are broken in C89 mode. We have to check -# whether the compilation finishes successfully. -# -# Due to bugs in mingwrt 4.0.3 we don't use `-ansi' for MinGW. -# -# To avoid zillions of -# -# ISO C90 does not support 'long long' -# -# warnings, we disable `-pedantic' for gcc version < 4.6. +# We try to make the compiler work for C99-strict source. Even if the +# C compiler is gcc and C99 flags are available, some system headers +# might be broken in C99 mode. We have to check whether compilation +# finishes successfully. # if test "x$GCC" = xyes; then XX_CFLAGS="-Wall" @@ -250,23 +183,11 @@ if test "x$GCC" = xyes; then XX_ANSIFLAGS="-pedantic" ;; *) - GCC_VERSION=`$CC -dumpversion` - GCC_MAJOR=`echo "$GCC_VERSION" | sed 's/\([[^.]][[^.]]*\).*/\1/'` - GCC_MINOR=`echo "$GCC_VERSION" | sed 's/[[^.]][[^.]]*.\([[^.]][[^.]]*\).*/\1/'` - - XX_PEDANTIC=-pedantic - if test $GCC_MAJOR -lt 4; then - XX_PEDANTIC= - else - if test $GCC_MAJOR -eq 4 -a $GCC_MINOR -lt 6; then - XX_PEDANTIC= - fi - fi - XX_ANSIFLAGS="" - for a in $XX_PEDANTIC -ansi + + for a in "-pedantic" "-std=c99" do - AC_MSG_CHECKING([gcc compiler flag ${a} to assure ANSI C works correctly]) + AC_MSG_CHECKING([$CC compiler flag ${a} to assure ANSI C99 works correctly]) orig_CFLAGS="${CFLAGS}" CFLAGS="${CFLAGS} ${XX_ANSIFLAGS} ${a}" AC_COMPILE_IFELSE([ @@ -508,7 +429,7 @@ AC_ARG_WITH([harfbuzz], have_harfbuzz=no if test x"$with_harfbuzz" = xyes -o x"$with_harfbuzz" = xauto; then - harfbuzz_pkg="harfbuzz >= 1.8.0" + harfbuzz_pkg="harfbuzz >= 2.0.0" have_harfbuzz_pkg=no if test x"$HARFBUZZ_CFLAGS" = x -a x"$HARFBUZZ_LIBS" = x; then @@ -1012,6 +933,10 @@ case "$CFLAGS" in ;; esac +# Check for pthreads + +AX_PTHREAD([have_pthread=yes], [have_pthread=no]) + # Check for Python and docwriter have_py3=no @@ -1024,7 +949,7 @@ if test "x$PYTHON" != "xmissing"; then if test "x$have_py3" = "xyes"; then PIP="$PYTHON -m $PIP" - AC_MSG_CHECKING([for \`docwriter' Python module]) + AC_MSG_CHECKING([for `docwriter' Python module]) $PYTHON -m docwriter -h > /dev/null 2>&1 if test "x$?" = "x0"; then have_docwriter=yes @@ -1142,6 +1067,11 @@ else ftoption_unset FT_CONFIG_OPTION_USE_BROTLI fi +if test "$have_pthread" != no; then + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + LDFLAGS="$LDFLAGS $PTHREAD_CFLAGS $PTHREAD_LIBS" +fi + AC_SUBST([CFLAGS]) AC_SUBST([LDFLAGS]) @@ -1176,16 +1106,27 @@ Library configuration: libpng: $have_libpng harfbuzz: $have_harfbuzz brotli: $have_brotli + pthread: $have_pthread ]) # Warn if docwriter is not installed if test $have_docwriter = no; then AC_MSG_WARN([ - \`make refdoc' will fail since pip package \`docwriter' is not installed. - To install, run \`$PIP install docwriter', or to use a Python - virtual environment, run \`make refdoc-venv' (requires pip package - \`virtualenv'). These operations require Python >= 3.5. + `make refdoc' will fail since pip package `docwriter' is not installed. + To install, run `$PIP install docwriter', or to use a Python + virtual environment, run `make refdoc-venv' (requires pip package + `virtualenv'). These operations require Python >= 3.5. + ]) +fi + +# Warn if pthread is not available + +if test $have_pthread = no; then + AC_MSG_WARN([ + `FT_DEBUG_LOGGING' will not work since the `pthread' library is not + available. This warning can be safely ignored if you don't plan to use + this configuration macro. ]) fi diff --git a/builds/unix/detect.mk b/builds/unix/detect.mk index c7e8408de..862b43219 100644 --- a/builds/unix/detect.mk +++ b/builds/unix/detect.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/unix/freetype-config.in b/builds/unix/freetype-config.in index 3918ddb92..4edb092d0 100644 --- a/builds/unix/freetype-config.in +++ b/builds/unix/freetype-config.in @@ -1,6 +1,6 @@ #! /bin/sh # -# Copyright (C) 2000-2020 by +# Copyright (C) 2000-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/unix/freetype2.m4 b/builds/unix/freetype2.m4 index 207c263fb..478a42210 100644 --- a/builds/unix/freetype2.m4 +++ b/builds/unix/freetype2.m4 @@ -1,7 +1,7 @@ # Configure paths for FreeType2 -# Marcelo Magallon 2001-10-26, based on gtk.m4 by Owen Taylor +# Marcelo Magallon 2001-10-26, based on `gtk.m4` by Owen Taylor # -# Copyright (C) 2001-2020 by +# Copyright (C) 2001-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -15,32 +15,32 @@ # generated by Autoconf, under the same distribution terms as the rest of # that program. # -# serial 5 +# serial 6 # AC_CHECK_FT2([MINIMUM-VERSION [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]]) # Test for FreeType 2, and define FT2_CFLAGS and FT2_LIBS. -# MINIMUM-VERSION is what libtool reports; the default is `7.0.1' (this is +# MINIMUM-VERSION is what libtool reports; the default is '7.0.1' (this is # FreeType 2.0.4). # +# To make this code work with older autoconf versions, `AS_HELP_STRING` is +# not quoted. +# AC_DEFUN([AC_CHECK_FT2], [# Get the cflags and libraries from the freetype-config script # AC_ARG_WITH([ft-prefix], - dnl don't quote AS_HELP_STRING! AS_HELP_STRING([--with-ft-prefix=PREFIX], [Prefix where FreeType is installed (optional)]), [ft_config_prefix="$withval"], [ft_config_prefix=""]) AC_ARG_WITH([ft-exec-prefix], - dnl don't quote AS_HELP_STRING! AS_HELP_STRING([--with-ft-exec-prefix=PREFIX], [Exec prefix where FreeType is installed (optional)]), [ft_config_exec_prefix="$withval"], [ft_config_exec_prefix=""]) AC_ARG_ENABLE([freetypetest], - dnl don't quote AS_HELP_STRING! AS_HELP_STRING([--disable-freetypetest], [Do not try to compile and run a test FreeType program]), [], diff --git a/builds/unix/ft-munmap.m4 b/builds/unix/ft-munmap.m4 index a1aea2ba1..275481ba1 100644 --- a/builds/unix/ft-munmap.m4 +++ b/builds/unix/ft-munmap.m4 @@ -1,6 +1,6 @@ ## FreeType specific autoconf tests # -# Copyright (C) 2002-2020 by +# Copyright (C) 2002-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/unix/ftconfig.h.in b/builds/unix/ftconfig.h.in index 00b5a8226..b42fe42f9 100644 --- a/builds/unix/ftconfig.h.in +++ b/builds/unix/ftconfig.h.in @@ -4,7 +4,7 @@ * * UNIX-specific configuration file (specification only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -42,16 +42,6 @@ #undef HAVE_UNISTD_H #undef HAVE_FCNTL_H -#undef FT_USE_AUTOCONF_SIZEOF_TYPES -#ifdef FT_USE_AUTOCONF_SIZEOF_TYPES - -#undef SIZEOF_INT -#undef SIZEOF_LONG -#define FT_SIZEOF_INT SIZEOF_INT -#define FT_SIZEOF_LONG SIZEOF_LONG - -#endif /* FT_USE_AUTOCONF_SIZEOF_TYPES */ - #include <freetype/config/integer-types.h> #include <freetype/config/public-macros.h> #include <freetype/config/mac-support.h> diff --git a/builds/unix/ftsystem.c b/builds/unix/ftsystem.c index b4d71d40e..81ed92858 100644 --- a/builds/unix/ftsystem.c +++ b/builds/unix/ftsystem.c @@ -1,19 +1,19 @@ -/***************************************************************************/ -/* */ -/* ftsystem.c */ -/* */ -/* Unix-specific FreeType low-level system interface (body). */ -/* */ -/* Copyright (C) 1996-2020 by */ -/* David Turner, Robert Wilhelm, and Werner Lemberg. */ -/* */ -/* This file is part of the FreeType project, and may only be used, */ -/* modified, and distributed under the terms of the FreeType project */ -/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ -/* this file you indicate that you have read the license and */ -/* understand and accept it fully. */ -/* */ -/***************************************************************************/ +/**************************************************************************** + * + * ftsystem.c + * + * Unix-specific FreeType low-level system interface (body). + * + * Copyright (C) 1996-2021 by + * David Turner, Robert Wilhelm, and Werner Lemberg. + * + * This file is part of the FreeType project, and may only be used, + * modified, and distributed under the terms of the FreeType project + * license, LICENSE.TXT. By continuing to use, modify, or distribute + * this file you indicate that you have read the license and + * understand and accept it fully. + * + */ #include <ft2build.h> @@ -70,29 +70,40 @@ #include <errno.h> - /*************************************************************************/ - /* */ - /* MEMORY MANAGEMENT INTERFACE */ - /* */ - /*************************************************************************/ - - - /*************************************************************************/ - /* */ - /* <Function> */ - /* ft_alloc */ - /* */ - /* <Description> */ - /* The memory allocation function. */ - /* */ - /* <Input> */ - /* memory :: A pointer to the memory object. */ - /* */ - /* size :: The requested size in bytes. */ - /* */ - /* <Return> */ - /* The address of newly allocated block. */ - /* */ + /************************************************************************** + * + * MEMORY MANAGEMENT INTERFACE + * + */ + + + /************************************************************************** + * + * It is not necessary to do any error checking for the + * allocation-related functions. This will be done by the higher level + * routines like ft_mem_alloc() or ft_mem_realloc(). + * + */ + + + /************************************************************************** + * + * @Function: + * ft_alloc + * + * @Description: + * The memory allocation function. + * + * @Input: + * memory :: + * A pointer to the memory object. + * + * size :: + * The requested size in bytes. + * + * @Return: + * The address of newly allocated block. + */ FT_CALLBACK_DEF( void* ) ft_alloc( FT_Memory memory, long size ) @@ -103,26 +114,30 @@ } - /*************************************************************************/ - /* */ - /* <Function> */ - /* ft_realloc */ - /* */ - /* <Description> */ - /* The memory reallocation function. */ - /* */ - /* <Input> */ - /* memory :: A pointer to the memory object. */ - /* */ - /* cur_size :: The current size of the allocated memory block. */ - /* */ - /* new_size :: The newly requested size in bytes. */ - /* */ - /* block :: The current address of the block in memory. */ - /* */ - /* <Return> */ - /* The address of the reallocated memory block. */ - /* */ + /************************************************************************** + * + * @Function: + * ft_realloc + * + * @Description: + * The memory reallocation function. + * + * @Input: + * memory :: + * A pointer to the memory object. + * + * cur_size :: + * The current size of the allocated memory block. + * + * new_size :: + * The newly requested size in bytes. + * + * block :: + * The current address of the block in memory. + * + * @Return: + * The address of the reallocated memory block. + */ FT_CALLBACK_DEF( void* ) ft_realloc( FT_Memory memory, long cur_size, @@ -136,19 +151,21 @@ } - /*************************************************************************/ - /* */ - /* <Function> */ - /* ft_free */ - /* */ - /* <Description> */ - /* The memory release function. */ - /* */ - /* <Input> */ - /* memory :: A pointer to the memory object. */ - /* */ - /* block :: The address of block in memory to be freed. */ - /* */ + /************************************************************************** + * + * @Function: + * ft_free + * + * @Description: + * The memory release function. + * + * @Input: + * memory :: + * A pointer to the memory object. + * + * block :: + * The address of block in memory to be freed. + */ FT_CALLBACK_DEF( void ) ft_free( FT_Memory memory, void* block ) @@ -159,19 +176,19 @@ } - /*************************************************************************/ - /* */ - /* RESOURCE MANAGEMENT INTERFACE */ - /* */ - /*************************************************************************/ + /************************************************************************** + * + * RESOURCE MANAGEMENT INTERFACE + * + */ - /*************************************************************************/ - /* */ - /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ - /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ - /* messages during execution. */ - /* */ + /************************************************************************** + * + * The macro FT_COMPONENT is used in trace mode. It is an implicit + * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log + * messages during execution. + */ #undef FT_COMPONENT #define FT_COMPONENT io @@ -180,17 +197,17 @@ #define STREAM_FILE( stream ) ( (FILE*)stream->descriptor.pointer ) - /*************************************************************************/ - /* */ - /* <Function> */ - /* ft_close_stream_by_munmap */ - /* */ - /* <Description> */ - /* The function to close a stream which is opened by mmap. */ - /* */ - /* <Input> */ - /* stream :: A pointer to the stream object. */ - /* */ + /************************************************************************** + * + * @Function: + * ft_close_stream_by_munmap + * + * @Description: + * The function to close a stream which is opened by mmap. + * + * @Input: + * stream :: A pointer to the stream object. + */ FT_CALLBACK_DEF( void ) ft_close_stream_by_munmap( FT_Stream stream ) { @@ -198,29 +215,29 @@ stream->descriptor.pointer = NULL; stream->size = 0; - stream->base = 0; + stream->base = NULL; } - /*************************************************************************/ - /* */ - /* <Function> */ - /* ft_close_stream_by_free */ - /* */ - /* <Description> */ - /* The function to close a stream which is created by ft_alloc. */ - /* */ - /* <Input> */ - /* stream :: A pointer to the stream object. */ - /* */ + /************************************************************************** + * + * @Function: + * ft_close_stream_by_free + * + * @Description: + * The function to close a stream which is created by ft_alloc. + * + * @Input: + * stream :: A pointer to the stream object. + */ FT_CALLBACK_DEF( void ) ft_close_stream_by_free( FT_Stream stream ) { - ft_free( NULL, stream->descriptor.pointer ); + ft_free( stream->memory, stream->descriptor.pointer ); stream->descriptor.pointer = NULL; stream->size = 0; - stream->base = 0; + stream->base = NULL; } @@ -296,8 +313,7 @@ file, 0 ); - /* on some RTOS, mmap might return 0 */ - if ( (long)stream->base != -1 && stream->base != NULL ) + if ( stream->base != MAP_FAILED ) stream->close = ft_close_stream_by_munmap; else { @@ -307,7 +323,7 @@ FT_ERROR(( "FT_Stream_Open:" )); FT_ERROR(( " could not `mmap' file `%s'\n", filepathname )); - stream->base = (unsigned char*)ft_alloc( NULL, stream->size ); + stream->base = (unsigned char*)ft_alloc( stream->memory, stream->size ); if ( !stream->base ) { @@ -348,7 +364,7 @@ stream->descriptor.pointer = stream->base; stream->pathname.pointer = (char*)filepathname; - stream->read = 0; + stream->read = NULL; FT_TRACE1(( "FT_Stream_Open:" )); FT_TRACE1(( " opened `%s' (%ld bytes) successfully\n", @@ -357,7 +373,7 @@ return FT_Err_Ok; Fail_Read: - ft_free( NULL, stream->base ); + ft_free( stream->memory, stream->base ); Fail_Map: close( file ); @@ -392,7 +408,7 @@ memory = (FT_Memory)malloc( sizeof ( *memory ) ); if ( memory ) { - memory->user = 0; + memory->user = NULL; memory->alloc = ft_alloc; memory->realloc = ft_realloc; memory->free = ft_free; diff --git a/builds/unix/install.mk b/builds/unix/install.mk index aa2518769..45b761d53 100644 --- a/builds/unix/install.mk +++ b/builds/unix/install.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -62,7 +62,7 @@ endif $(DESTDIR)$(includedir)/freetype2/freetype/config/ftmodule.h $(INSTALL_DATA) $(OBJ_BUILD)/ftoption.h \ $(DESTDIR)$(includedir)/freetype2/freetype/config/ftoption.h - $(INSTALL_SCRIPT) -m 644 $(BUILD_DIR)/freetype2.m4 \ + $(INSTALL_SCRIPT) -m 644 $(PLATFORM_DIR)/freetype2.m4 \ $(DESTDIR)$(datadir)/aclocal/freetype2.m4 $(INSTALL_SCRIPT) -m 644 $(OBJ_BUILD)/freetype2.pc \ $(DESTDIR)$(libdir)/pkgconfig/freetype2.pc diff --git a/builds/unix/unix-cc.in b/builds/unix/unix-cc.in index 30d097b23..89be45016 100644 --- a/builds/unix/unix-cc.in +++ b/builds/unix/unix-cc.in @@ -2,7 +2,7 @@ # FreeType 2 template for Unix-specific compiler definitions # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -14,7 +14,7 @@ CC := @CC@ COMPILER_SEP := $(SEP) -FT_LIBTOOL_DIR ?= $(BUILD_DIR) +FT_LIBTOOL_DIR ?= $(PLATFORM_DIR) LIBTOOL := $(FT_LIBTOOL_DIR)/libtool @@ -73,7 +73,7 @@ T := -o$(space) # # These should concern: debug output, optimization & warnings. # -# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# Use the ANSIFLAGS variable to define the compiler flags used to enforce # ANSI compliance. # # We use our own FreeType configuration files overriding defaults. diff --git a/builds/unix/unix-def.in b/builds/unix/unix-def.in index 5e04f1c6a..d0c758d03 100644 --- a/builds/unix/unix-def.in +++ b/builds/unix/unix-def.in @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -27,7 +27,7 @@ PYTHON := @PYTHON@ BIN := bin # this is used for `make distclean' and `make install' -OBJ_BUILD ?= $(BUILD_DIR) +OBJ_BUILD ?= $(PLATFORM_DIR) # don't use `:=' here since the path stuff will be included after this file # diff --git a/builds/unix/unix-dev.mk b/builds/unix/unix-dev.mk index 135257522..0b572a034 100644 --- a/builds/unix/unix-dev.mk +++ b/builds/unix/unix-dev.mk @@ -6,7 +6,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/unix/unix-lcc.mk b/builds/unix/unix-lcc.mk index a6579db9e..db57835a0 100644 --- a/builds/unix/unix-lcc.mk +++ b/builds/unix/unix-lcc.mk @@ -6,7 +6,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/unix/unix.mk b/builds/unix/unix.mk index e08727d94..262fafb74 100644 --- a/builds/unix/unix.mk +++ b/builds/unix/unix.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -13,8 +13,8 @@ # fully. # We need these declarations here since unix-def.mk is a generated file. -BUILD_DIR := $(TOP_DIR)/builds/unix -PLATFORM := unix +PLATFORM_DIR := $(TOP_DIR)/builds/unix +PLATFORM := unix have_mk := $(wildcard $(OBJ_DIR)/unix-def.mk) ifneq ($(have_mk),) @@ -22,8 +22,8 @@ ifneq ($(have_mk),) include $(OBJ_DIR)/unix-def.mk include $(OBJ_DIR)/unix-cc.mk else - include $(BUILD_DIR)/unix-def.mk - include $(BUILD_DIR)/unix-cc.mk + include $(PLATFORM_DIR)/unix-def.mk + include $(PLATFORM_DIR)/unix-cc.mk endif ifdef BUILD_PROJECT diff --git a/builds/unix/unixddef.mk b/builds/unix/unixddef.mk index b8e321762..77c2a0df5 100644 --- a/builds/unix/unixddef.mk +++ b/builds/unix/unixddef.mk @@ -4,7 +4,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -27,9 +27,6 @@ SEP := / # BIN := bin -# we use a special devel ftoption.h -DEVEL_DIR := $(TOP_DIR)/devel - # library file name # diff --git a/builds/vms/ftconfig.h b/builds/vms/ftconfig.h index 07e5f83d7..2445b7d79 100644 --- a/builds/vms/ftconfig.h +++ b/builds/vms/ftconfig.h @@ -4,7 +4,7 @@ * * VMS-specific configuration file (specification only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/builds/vms/ftsystem.c b/builds/vms/ftsystem.c index 177481ab2..31b08708f 100644 --- a/builds/vms/ftsystem.c +++ b/builds/vms/ftsystem.c @@ -4,7 +4,7 @@ /* */ /* VMS-specific FreeType low-level system interface (body). */ /* */ -/* Copyright (C) 1996-2020 by */ +/* Copyright (C) 1996-2021 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -197,7 +197,7 @@ stream->descriptor.pointer = NULL; stream->size = 0; - stream->base = 0; + stream->base = NULL; } @@ -246,7 +246,7 @@ file, 0 ); - if ( (long)stream->base == -1 ) + if ( stream->base == MAP_FAILED ) { FT_ERROR(( "FT_Stream_Open:" )); FT_ERROR(( " could not `mmap' file `%s'\n", filepathname )); @@ -259,7 +259,7 @@ stream->pathname.pointer = (char*)filepathname; stream->close = ft_close_stream; - stream->read = 0; + stream->read = NULL; FT_TRACE1(( "FT_Stream_Open:" )); FT_TRACE1(( " opened `%s' (%d bytes) successfully\n", @@ -300,7 +300,7 @@ memory = (FT_Memory)malloc( sizeof ( *memory ) ); if ( memory ) { - memory->user = 0; + memory->user = NULL; memory->alloc = ft_alloc; memory->realloc = ft_realloc; memory->free = ft_free; diff --git a/builds/wince/ftdebug.c b/builds/wince/ftdebug.c index 734c4f0a5..9e1777661 100644 --- a/builds/wince/ftdebug.c +++ b/builds/wince/ftdebug.c @@ -4,7 +4,7 @@ * * Debugging and logging component for WinCE (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -230,7 +230,7 @@ /* const char* ft2_debug = getenv( "FT2_DEBUG" ); */ - const char* ft2_debug = 0; + const char* ft2_debug = NULL; if ( ft2_debug ) diff --git a/builds/wince/vc2005-ce/index.html b/builds/wince/vc2005-ce/index.html index 6936a8909..3e42cf992 100644 --- a/builds/wince/vc2005-ce/index.html +++ b/builds/wince/vc2005-ce/index.html @@ -21,7 +21,7 @@ the following targets: <li>PPC/SP WM6 (Windows Mobile 6)</li> </ul> -It compiles the following libraries from the FreeType 2.10.4 sources:</p> +It compiles the following libraries from the FreeType 2.11.1 sources:</p> <ul> <pre> diff --git a/builds/wince/vc2008-ce/index.html b/builds/wince/vc2008-ce/index.html index ee385af86..645675c72 100644 --- a/builds/wince/vc2008-ce/index.html +++ b/builds/wince/vc2008-ce/index.html @@ -21,7 +21,7 @@ the following targets: <li>PPC/SP WM6 (Windows Mobile 6)</li> </ul> -It compiles the following libraries from the FreeType 2.10.4 sources:</p> +It compiles the following libraries from the FreeType 2.11.1 sources:</p> <ul> <pre> diff --git a/builds/windows/detect.mk b/builds/windows/detect.mk index 303dc8b98..3eef47aaa 100644 --- a/builds/windows/detect.mk +++ b/builds/windows/detect.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -81,9 +81,9 @@ ifeq ($(PLATFORM),windows) # (2004-11-11), and then in the devel mailing list (2004-11-20 to -23). # ifeq ($(OS),Windows_NT) - COPY := cmd.exe /c copy + COPY := >nul cmd.exe /c copy else - COPY := copy + COPY := >nul copy endif # test NT diff --git a/builds/windows/ftdebug.c b/builds/windows/ftdebug.c index d58949003..94c22da75 100644 --- a/builds/windows/ftdebug.c +++ b/builds/windows/ftdebug.c @@ -4,7 +4,7 @@ * * Debugging and logging component for Win32 (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -42,33 +42,108 @@ #include <freetype/freetype.h> +#include <freetype/ftlogging.h> #include <freetype/internal/ftdebug.h> +#include <freetype/internal/ftobjs.h> -#ifdef FT_DEBUG_LEVEL_ERROR +#ifdef FT_DEBUG_LOGGING -#include <stdarg.h> -#include <stdlib.h> -#include <string.h> + /************************************************************************** + * + * Variables used to control logging. + * + * 1. `ft_default_trace_level` stores the value of trace levels, which are + * provided to FreeType using the `FT2_DEBUG` environment variable. + * + * 2. `ft_fileptr` stores the `FILE*` handle. + * + * 3. `ft_component` is a string that holds the name of `FT_COMPONENT`. + * + * 4. The flag `ft_component_flag` prints the name of `FT_COMPONENT` along + * with the actual log message if set to true. + * + * 5. The flag `ft_timestamp_flag` prints time along with the actual log + * message if set to ture. + * + * 6. `ft_have_newline_char` is used to differentiate between a log + * message with and without a trailing newline character. + * + * 7. `ft_custom_trace_level` stores the custom trace level value, which + * is provided by the user at run-time. + * + * We use `static` to avoid 'unused variable' warnings. + * + */ + static const char* ft_default_trace_level = NULL; + static FILE* ft_fileptr = NULL; + static const char* ft_component = NULL; + static FT_Bool ft_component_flag = FALSE; + static FT_Bool ft_timestamp_flag = FALSE; + static FT_Bool ft_have_newline_char = TRUE; + static const char* ft_custom_trace_level = NULL; + /* declared in ftdebug.h */ + + dlg_handler ft_default_log_handler = NULL; + FT_Custom_Log_Handler custom_output_handler = NULL; + +#endif /* FT_DEBUG_LOGGING */ + + +#ifdef FT_DEBUG_LEVEL_ERROR + +#define WIN32_LEAN_AND_MEAN #include <windows.h> +#ifdef _WIN32_WCE + + FT_LOACAL_DEF( void ) + OutputDebugStringA( LPCSTR lpOutputString ) + { + int len; + LPWSTR lpOutputStringW; + + + /* allocate memory space for converted string */ + len = MultiByteToWideChar( CP_ACP, MB_ERR_INVALID_CHARS, + lpOutputString, -1, NULL, 0 ); + + lpOutputStringW = (LPWSTR)_alloca( len * sizeof ( WCHAR ) ); + + if ( !len || !lpOutputStringW ) + return; + + /* now it is safe to do the translation */ + MultiByteToWideChar( CP_ACP, MB_ERR_INVALID_CHARS, + lpOutputString, -1, lpOutputStringW, len ); + + OutputDebugStringW( lpOutputStringW ); + } + +#endif /* _WIN32_WCE */ + + /* documentation is in ftdebug.h */ FT_BASE_DEF( void ) FT_Message( const char* fmt, ... ) { - static char buf[8192]; - va_list ap; + va_list ap; va_start( ap, fmt ); vfprintf( stderr, fmt, ap ); - /* send the string to the debugger as well */ - vsprintf( buf, fmt, ap ); - OutputDebugStringA( buf ); + if ( IsDebuggerPresent() ) + { + static char buf[1024]; + + + vsnprintf( buf, sizeof buf, fmt, ap ); + OutputDebugStringA( buf ); + } va_end( ap ); } @@ -79,13 +154,19 @@ FT_Panic( const char* fmt, ... ) { - static char buf[8192]; - va_list ap; + va_list ap; va_start( ap, fmt ); - vsprintf( buf, fmt, ap ); - OutputDebugStringA( buf ); + vfprintf( stderr, fmt, ap ); + if ( IsDebuggerPresent() ) + { + static char buf[1024]; + + + vsnprintf( buf, sizeof buf, fmt, ap ); + OutputDebugStringA( buf ); + } va_end( ap ); exit( EXIT_FAILURE ); @@ -207,9 +288,18 @@ FT_BASE_DEF( void ) ft_debug_init( void ) { - const char* ft2_debug = getenv( "FT2_DEBUG" ); + const char* ft2_debug = NULL; +#ifdef FT_DEBUG_LOGGING + if ( ft_custom_trace_level != NULL ) + ft2_debug = ft_custom_trace_level; + else + ft2_debug = ft_default_trace_level; +#else + ft2_debug = ft_getenv( "FT2_DEBUG" ); +#endif + if ( ft2_debug ) { const char* p = ft2_debug; @@ -222,6 +312,49 @@ if ( *p == ' ' || *p == '\t' || *p == ',' || *p == ';' || *p == '=' ) continue; +#ifdef FT_DEBUG_LOGGING + + /* check extra arguments for logging */ + if ( *p == '-' ) + { + const char* r = ++p; + + + if ( *r == 'v' ) + { + const char* s = ++r; + + + ft_component_flag = TRUE; + + if ( *s == 't' ) + { + ft_timestamp_flag = TRUE; + p++; + } + + p++; + } + + else if ( *r == 't' ) + { + const char* s = ++r; + + + ft_timestamp_flag = TRUE; + + if ( *s == 'v' ) + { + ft_component_flag = TRUE; + p++; + } + + p++; + } + } + +#endif /* FT_DEBUG_LOGGING */ + /* read toggle name, followed by ':' */ q = p; while ( *p && *p != ':' ) @@ -323,8 +456,237 @@ /* nothing */ } - #endif /* !FT_DEBUG_LEVEL_TRACE */ +#ifdef FT_DEBUG_LOGGING + + /************************************************************************** + * + * Initialize and de-initialize 'dlg' library. + * + */ + + FT_BASE_DEF( void ) + ft_logging_init( void ) + { + ft_default_log_handler = ft_log_handler; + ft_default_trace_level = ft_getenv( "FT2_DEBUG" ); + + if ( ft_getenv( "FT_LOGGING_FILE" ) ) + ft_fileptr = ft_fopen( ft_getenv( "FT_LOGGING_FILE" ), "w" ); + else + ft_fileptr = stderr; + + ft_debug_init(); + + /* Set the default output handler for 'dlg'. */ + dlg_set_handler( ft_default_log_handler, NULL ); + } + + + FT_BASE_DEF( void ) + ft_logging_deinit( void ) + { + if ( ft_fileptr != stderr ) + ft_fclose( ft_fileptr ); + } + + + /************************************************************************** + * + * An output log handler for FreeType. + * + */ + FT_BASE_DEF( void ) + ft_log_handler( const struct dlg_origin* origin, + const char* string, + void* data ) + { + char features_buf[128]; + char* bufp = features_buf; + + FT_UNUSED( data ); + + + if ( ft_have_newline_char ) + { + const char* features = NULL; + size_t features_length = 0; + + +#define FEATURES_TIMESTAMP "[%h:%m] " +#define FEATURES_COMPONENT "[%t] " +#define FEATURES_TIMESTAMP_COMPONENT "[%h:%m %t] " + + if ( ft_timestamp_flag && ft_component_flag ) + { + features = FEATURES_TIMESTAMP_COMPONENT; + features_length = sizeof ( FEATURES_TIMESTAMP_COMPONENT ); + } + else if ( ft_timestamp_flag ) + { + features = FEATURES_TIMESTAMP; + features_length = sizeof ( FEATURES_TIMESTAMP ); + } + else if ( ft_component_flag ) + { + features = FEATURES_COMPONENT; + features_length = sizeof ( FEATURES_COMPONENT ); + } + + if ( ft_component_flag || ft_timestamp_flag ) + { + ft_strncpy( features_buf, features, features_length ); + bufp += features_length - 1; + } + + if ( ft_component_flag ) + { + size_t tag_length = ft_strlen( *origin->tags ); + size_t i; + + + /* To vertically align tracing messages we compensate the */ + /* different FT_COMPONENT string lengths by inserting an */ + /* appropriate amount of space characters. */ + for ( i = 0; + i < FT_MAX_TRACE_LEVEL_LENGTH - tag_length; + i++ ) + *bufp++ = ' '; + } + } + + /* Finally add the format string for the tracing message. */ + *bufp++ = '%'; + *bufp++ = 'c'; + *bufp = '\0'; + + dlg_generic_outputf_stream( ft_fileptr, + (const char*)features_buf, + origin, + string, + dlg_default_output_styles, + true ); + + if ( ft_strrchr( string, '\n' ) ) + ft_have_newline_char = TRUE; + else + ft_have_newline_char = FALSE; + } + + + /* documentation is in ftdebug.h */ + FT_BASE_DEF( void ) + ft_add_tag( const char* tag ) + { + ft_component = tag; + + dlg_add_tag( tag, NULL ); + } + + + /* documentation is in ftdebug.h */ + FT_BASE_DEF( void ) + ft_remove_tag( const char* tag ) + { + dlg_remove_tag( tag, NULL ); + } + + + /* documentation is in ftlogging.h */ + + FT_EXPORT_DEF( void ) + FT_Trace_Set_Level( const char* level ) + { + ft_component_flag = FALSE; + ft_timestamp_flag = FALSE; + ft_custom_trace_level = level; + + ft_debug_init(); + } + + + /* documentation is in ftlogging.h */ + + FT_EXPORT_DEF( void ) + FT_Trace_Set_Default_Level( void ) + { + ft_component_flag = FALSE; + ft_timestamp_flag = FALSE; + ft_custom_trace_level = NULL; + + ft_debug_init(); + } + + + /************************************************************************** + * + * Functions to handle a custom log handler. + * + */ + + /* documentation is in ftlogging.h */ + + FT_EXPORT_DEF( void ) + FT_Set_Log_Handler( FT_Custom_Log_Handler handler ) + { + custom_output_handler = handler; + } + + + /* documentation is in ftlogging.h */ + + FT_EXPORT_DEF( void ) + FT_Set_Default_Log_Handler( void ) + { + custom_output_handler = NULL; + } + + + /* documentation is in ftdebug.h */ + FT_BASE_DEF( void ) + FT_Logging_Callback( const char* fmt, + ... ) + { + va_list ap; + + + va_start( ap, fmt ); + custom_output_handler( ft_component, fmt, ap ); + va_end( ap ); + } + +#else /* !FT_DEBUG_LOGGING */ + + FT_EXPORT_DEF( void ) + FT_Trace_Set_Level( const char* level ) + { + FT_UNUSED( level ); + } + + + FT_EXPORT_DEF( void ) + FT_Trace_Set_Default_Level( void ) + { + /* nothing */ + } + + + FT_EXPORT_DEF( void ) + FT_Set_Log_Handler( FT_Custom_Log_Handler handler ) + { + FT_UNUSED( handler ); + } + + + FT_EXPORT_DEF( void ) + FT_Set_Default_Log_Handler( void ) + { + /* nothing */ + } + +#endif /* !FT_DEBUG_LOGGING */ + + /* END */ diff --git a/builds/windows/ftsystem.c b/builds/windows/ftsystem.c new file mode 100644 index 000000000..1ebadd49f --- /dev/null +++ b/builds/windows/ftsystem.c @@ -0,0 +1,436 @@ +/**************************************************************************** + * + * ftsystem.c + * + * Windows-specific FreeType low-level system interface (body). + * + * Copyright (C) 2021 by + * David Turner, Robert Wilhelm, and Werner Lemberg. + * + * This file is part of the FreeType project, and may only be used, + * modified, and distributed under the terms of the FreeType project + * license, LICENSE.TXT. By continuing to use, modify, or distribute + * this file you indicate that you have read the license and + * understand and accept it fully. + * + */ + + +#include <ft2build.h> + /* we use our special ftconfig.h file, not the standard one */ +#include FT_CONFIG_CONFIG_H +#include <freetype/internal/ftdebug.h> +#include <freetype/ftsystem.h> +#include <freetype/fterrors.h> +#include <freetype/fttypes.h> +#include <freetype/internal/ftstream.h> + + /* memory mapping and allocation includes and definitions */ +#define WIN32_LEAN_AND_MEAN +#include <windows.h> + + + /************************************************************************** + * + * MEMORY MANAGEMENT INTERFACE + * + */ + + + /************************************************************************** + * + * It is not necessary to do any error checking for the + * allocation-related functions. This will be done by the higher level + * routines like ft_mem_alloc() or ft_mem_realloc(). + * + */ + + + /************************************************************************** + * + * @Function: + * ft_alloc + * + * @Description: + * The memory allocation function. + * + * @Input: + * memory :: + * A pointer to the memory object. + * + * size :: + * The requested size in bytes. + * + * @Return: + * The address of newly allocated block. + */ + FT_CALLBACK_DEF( void* ) + ft_alloc( FT_Memory memory, + long size ) + { + return HeapAlloc( memory->user, 0, size ); + } + + + /************************************************************************** + * + * @Function: + * ft_realloc + * + * @Description: + * The memory reallocation function. + * + * @Input: + * memory :: + * A pointer to the memory object. + * + * cur_size :: + * The current size of the allocated memory block. + * + * new_size :: + * The newly requested size in bytes. + * + * block :: + * The current address of the block in memory. + * + * @Return: + * The address of the reallocated memory block. + */ + FT_CALLBACK_DEF( void* ) + ft_realloc( FT_Memory memory, + long cur_size, + long new_size, + void* block ) + { + FT_UNUSED( cur_size ); + + return HeapReAlloc( memory->user, 0, block, new_size ); + } + + + /************************************************************************** + * + * @Function: + * ft_free + * + * @Description: + * The memory release function. + * + * @Input: + * memory :: + * A pointer to the memory object. + * + * block :: + * The address of block in memory to be freed. + */ + FT_CALLBACK_DEF( void ) + ft_free( FT_Memory memory, + void* block ) + { + HeapFree( memory->user, 0, block ); + } + + + /************************************************************************** + * + * RESOURCE MANAGEMENT INTERFACE + * + */ + + + /************************************************************************** + * + * The macro FT_COMPONENT is used in trace mode. It is an implicit + * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log + * messages during execution. + */ +#undef FT_COMPONENT +#define FT_COMPONENT io + + /* We use the macro STREAM_FILE for convenience to extract the */ + /* system-specific stream handle from a given FreeType stream object */ +#define STREAM_FILE( stream ) ( (FILE*)stream->descriptor.pointer ) + + + /************************************************************************** + * + * @Function: + * ft_close_stream_by_munmap + * + * @Description: + * The function to close a stream which is opened by mmap. + * + * @Input: + * stream :: A pointer to the stream object. + */ + FT_CALLBACK_DEF( void ) + ft_close_stream_by_munmap( FT_Stream stream ) + { + UnmapViewOfFile( (LPCVOID)stream->descriptor.pointer ); + + stream->descriptor.pointer = NULL; + stream->size = 0; + stream->base = NULL; + } + + + /************************************************************************** + * + * @Function: + * ft_close_stream_by_free + * + * @Description: + * The function to close a stream which is created by ft_alloc. + * + * @Input: + * stream :: A pointer to the stream object. + */ + FT_CALLBACK_DEF( void ) + ft_close_stream_by_free( FT_Stream stream ) + { + ft_free( stream->memory, stream->descriptor.pointer ); + + stream->descriptor.pointer = NULL; + stream->size = 0; + stream->base = NULL; + } + + +#ifdef _WIN32_WCE + + FT_LOCAL_DEF( HANDLE ) + CreateFileA( LPCSTR lpFileName, + DWORD dwDesiredAccess, + DWORD dwShareMode, + LPSECURITY_ATTRIBUTES lpSecurityAttributes, + DWORD dwCreationDisposition, + DWORD dwFlagsAndAttributes, + HANDLE hTemplateFile ) + { + int len; + LPWSTR lpFileNameW; + + + /* allocate memory space for converted path name */ + len = MultiByteToWideChar( CP_ACP, MB_ERR_INVALID_CHARS, + lpFileName, -1, NULL, 0 ); + + lpFileNameW = (LPWSTR)_alloca( len * sizeof ( WCHAR ) ); + + if ( !len || !lpFileNameW ) + { + FT_ERROR(( "FT_Stream_Open: cannot convert file name to LPWSTR\n" )); + return INVALID_HANDLE_VALUE; + } + + /* now it is safe to do the translation */ + MultiByteToWideChar( CP_ACP, MB_ERR_INVALID_CHARS, + lpFileName, -1, lpFileNameW, len ); + + /* open the file */ + return CreateFileW( lpFileNameW, dwDesiredAccess, dwShareMode, + lpSecurityAttributes, dwCreationDisposition, + dwFlagsAndAttributes, hTemplateFile ); + } + + + FT_LOCAL_DEF( BOOL ) + GetFileSizeEx( HANDLE hFile, + PLARGE_INTEGER lpFileSize ) + { + lpFileSize->u.LowPart = GetFileSize( hFile, + (DWORD *)&lpFileSize->u.HighPart ); + + if ( lpFileSize->u.LowPart == INVALID_FILE_SIZE && + GetLastError() != NO_ERROR ) + return FALSE; + else + return TRUE; + } + +#endif /* _WIN32_WCE */ + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( FT_Error ) + FT_Stream_Open( FT_Stream stream, + const char* filepathname ) + { + HANDLE file; + HANDLE fm; + LARGE_INTEGER size; + + + if ( !stream ) + return FT_THROW( Invalid_Stream_Handle ); + + /* open the file */ + file = CreateFileA( (LPCSTR)filepathname, GENERIC_READ, FILE_SHARE_READ, + NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0 ); + if ( file == INVALID_HANDLE_VALUE ) + { + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " could not open `%s'\n", filepathname )); + return FT_THROW( Cannot_Open_Resource ); + } + + if ( GetFileSizeEx( file, &size ) == FALSE ) + { + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " could not retrieve size of file `%s'\n", filepathname )); + goto Fail_Open; + } + + /* `stream->size' is typedef'd to unsigned long (in `ftsystem.h'); */ + /* So avoid overflow caused by fonts in huge files larger than */ + /* 2GB, do a test. */ + if ( size.QuadPart > LONG_MAX ) + { + FT_ERROR(( "FT_Stream_Open: file is too big\n" )); + goto Fail_Open; + } + else if ( size.QuadPart == 0 ) + { + FT_ERROR(( "FT_Stream_Open: zero-length file\n" )); + goto Fail_Open; + } + + fm = CreateFileMapping( file, NULL, PAGE_READONLY, 0, 0, NULL ); + if ( fm == NULL ) + { + FT_ERROR(( "FT_Stream_Open: can not map file\n" )); + goto Fail_Open; + } + + /* Store only the low part of this 64 bits integer because long is */ + /* a 32 bits type. Anyway, a check has been done above to forbid */ + /* a size greater than LONG_MAX */ + stream->size = size.LowPart; + stream->pos = 0; + stream->base = (unsigned char *) + MapViewOfFile( fm, FILE_MAP_READ, 0, 0, 0 ); + + CloseHandle( fm ); + + if ( stream->base != NULL ) + stream->close = ft_close_stream_by_munmap; + else + { + DWORD total_read_count; + + + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " could not `mmap' file `%s'\n", filepathname )); + + stream->base = (unsigned char*)ft_alloc( stream->memory, stream->size ); + + if ( !stream->base ) + { + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " could not `alloc' memory\n" )); + goto Fail_Open; + } + + total_read_count = 0; + do + { + DWORD read_count; + + + if ( ReadFile( file, + stream->base + total_read_count, + stream->size - total_read_count, + &read_count, NULL ) == FALSE ) + { + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " error while `read'ing file `%s'\n", filepathname )); + goto Fail_Read; + } + + total_read_count += read_count; + + } while ( total_read_count != stream->size ); + + stream->close = ft_close_stream_by_free; + } + + CloseHandle( file ); + + stream->descriptor.pointer = stream->base; + stream->pathname.pointer = (char*)filepathname; + + stream->read = NULL; + + FT_TRACE1(( "FT_Stream_Open:" )); + FT_TRACE1(( " opened `%s' (%ld bytes) successfully\n", + filepathname, stream->size )); + + return FT_Err_Ok; + + Fail_Read: + ft_free( stream->memory, stream->base ); + + Fail_Open: + CloseHandle( file ); + + stream->base = NULL; + stream->size = 0; + stream->pos = 0; + + return FT_THROW( Cannot_Open_Stream ); + } + + +#ifdef FT_DEBUG_MEMORY + + extern FT_Int + ft_mem_debug_init( FT_Memory memory ); + + extern void + ft_mem_debug_done( FT_Memory memory ); + +#endif + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( FT_Memory ) + FT_New_Memory( void ) + { + HANDLE heap; + FT_Memory memory; + + + heap = GetProcessHeap(); + memory = heap ? (FT_Memory)HeapAlloc( heap, 0, sizeof ( *memory ) ) + : NULL; + + if ( memory ) + { + memory->user = heap; + memory->alloc = ft_alloc; + memory->realloc = ft_realloc; + memory->free = ft_free; +#ifdef FT_DEBUG_MEMORY + ft_mem_debug_init( memory ); +#endif + } + + return memory; + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( void ) + FT_Done_Memory( FT_Memory memory ) + { +#ifdef FT_DEBUG_MEMORY + ft_mem_debug_done( memory ); +#endif + memory->free( memory, memory ); + } + + +/* END */ diff --git a/builds/windows/vc2010/freetype.sln b/builds/windows/vc2010/freetype.sln index 8698207a9..d88d70a26 100644 --- a/builds/windows/vc2010/freetype.sln +++ b/builds/windows/vc2010/freetype.sln @@ -4,34 +4,49 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "freetype", "freetype.vcxpro EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
- Debug|Win32 = Debug|Win32
Debug|x64 = Debug|x64
- Debug Static|Win32 = Debug Static|Win32
+ Debug|ARM64 = Debug|ARM64
+ Debug|Win32 = Debug|Win32
Debug Static|x64 = Debug Static|x64
- Release|Win32 = Release|Win32
+ Debug Static|ARM64 = Debug Static|ARM64
+ Debug Static|Win32 = Debug Static|Win32
Release|x64 = Release|x64
- Release Static|Win32 = Release Static|Win32
+ Release|ARM64 = Release|ARM64
+ Release|Win32 = Release|Win32
Release Static|x64 = Release Static|x64
+ Release Static|ARM64 = Release Static|ARM64
+ Release Static|Win32 = Release Static|Win32
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
- {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug|Win32.ActiveCfg = Debug|Win32
- {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug|Win32.Build.0 = Debug|Win32
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug|x64.ActiveCfg = Debug|x64
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug|x64.Build.0 = Debug|x64
- {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Static|Win32.ActiveCfg = Debug Static|Win32
- {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Static|Win32.Build.0 = Debug Static|Win32
+ {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug|ARM64.ActiveCfg = Debug|ARM64
+ {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug|ARM64.Build.0 = Debug|ARM64
+ {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug|Win32.ActiveCfg = Debug|Win32
+ {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug|Win32.Build.0 = Debug|Win32
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Static|x64.ActiveCfg = Debug Static|x64
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Static|x64.Build.0 = Debug Static|x64
- {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release|Win32.ActiveCfg = Release|Win32
- {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release|Win32.Build.0 = Release|Win32
+ {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Static|ARM64.ActiveCfg = Debug Static|ARM64
+ {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Static|ARM64.Build.0 = Debug Static|ARM64
+ {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Static|Win32.ActiveCfg = Debug Static|Win32
+ {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Static|Win32.Build.0 = Debug Static|Win32
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release|x64.ActiveCfg = Release|x64
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release|x64.Build.0 = Release|x64
- {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Static|Win32.ActiveCfg = Release Static|Win32
- {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Static|Win32.Build.0 = Release Static|Win32
+ {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release|ARM64.ActiveCfg = Release|ARM64
+ {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release|ARM64.Build.0 = Release|ARM64
+ {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release|Win32.ActiveCfg = Release|Win32
+ {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release|Win32.Build.0 = Release|Win32
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Static|x64.ActiveCfg = Release Static|x64
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Static|x64.Build.0 = Release Static|x64
+ {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Static|ARM64.ActiveCfg = Release Static|ARM64
+ {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Static|ARM64.Build.0 = Release Static|ARM64
+ {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Static|Win32.ActiveCfg = Release Static|Win32
+ {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Static|Win32.Build.0 = Release Static|Win32
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
+ GlobalSection(ExtensibilityGlobals) = postSolution
+ SolutionGuid = {90811697-0889-4381-80BC-C3FE8FA4931F}
+ EndGlobalSection
EndGlobal
diff --git a/builds/windows/vc2010/freetype.vcxproj b/builds/windows/vc2010/freetype.vcxproj index d61eeec5f..0d38678db 100644 --- a/builds/windows/vc2010/freetype.vcxproj +++ b/builds/windows/vc2010/freetype.vcxproj @@ -1,10 +1,26 @@ <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<!--
+ You can use this file to build FreeType with MSBuild as follows
+
+ MSBuild.exe -t:Rebuild
+ -p:Configuration=Debug
+ -p:Platform=x64
+ -p:UserDefines=FT_DEBUG_LOGGING
+ builds/windows/vc2010/freetype.vcxproj
+
+ or with different appropriate switches. It also works with Visual Studio.
+ Additional customization can be made in `freetype.user.props`.
+-->
+<Project DefaultTargets="DlgCopy;Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup Label="ProjectConfigurations">
<ProjectConfiguration Include="Debug|Win32">
<Configuration>Debug</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
+ <ProjectConfiguration Include="Debug|ARM64">
+ <Configuration>Debug</Configuration>
+ <Platform>ARM64</Platform>
+ </ProjectConfiguration>
<ProjectConfiguration Include="Debug|x64">
<Configuration>Debug</Configuration>
<Platform>x64</Platform>
@@ -13,6 +29,10 @@ <Configuration>Debug Static</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
+ <ProjectConfiguration Include="Debug Static|ARM64">
+ <Configuration>Debug Static</Configuration>
+ <Platform>ARM64</Platform>
+ </ProjectConfiguration>
<ProjectConfiguration Include="Debug Static|x64">
<Configuration>Debug Static</Configuration>
<Platform>x64</Platform>
@@ -21,6 +41,10 @@ <Configuration>Release</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
+ <ProjectConfiguration Include="Release|ARM64">
+ <Configuration>Release</Configuration>
+ <Platform>ARM64</Platform>
+ </ProjectConfiguration>
<ProjectConfiguration Include="Release|x64">
<Configuration>Release</Configuration>
<Platform>x64</Platform>
@@ -29,6 +53,10 @@ <Configuration>Release Static</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
+ <ProjectConfiguration Include="Release Static|ARM64">
+ <Configuration>Release Static</Configuration>
+ <Platform>ARM64</Platform>
+ </ProjectConfiguration>
<ProjectConfiguration Include="Release Static|x64">
<Configuration>Release Static</Configuration>
<Platform>x64</Platform>
@@ -44,35 +72,51 @@ </PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
<ConfigurationType>DynamicLibrary</ConfigurationType>
- <CharacterSet>Unicode</CharacterSet>
+ <CharacterSet>NotSet</CharacterSet>
+ </PropertyGroup>
+ <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'" Label="Configuration">
+ <ConfigurationType>DynamicLibrary</ConfigurationType>
+ <CharacterSet>NotSet</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
<ConfigurationType>DynamicLibrary</ConfigurationType>
- <CharacterSet>Unicode</CharacterSet>
+ <CharacterSet>NotSet</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug Static|Win32'" Label="Configuration">
<ConfigurationType>StaticLibrary</ConfigurationType>
- <CharacterSet>Unicode</CharacterSet>
+ <CharacterSet>NotSet</CharacterSet>
+ </PropertyGroup>
+ <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug Static|ARM64'" Label="Configuration">
+ <ConfigurationType>StaticLibrary</ConfigurationType>
+ <CharacterSet>NotSet</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug Static|x64'" Label="Configuration">
<ConfigurationType>StaticLibrary</ConfigurationType>
- <CharacterSet>Unicode</CharacterSet>
+ <CharacterSet>NotSet</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
<ConfigurationType>DynamicLibrary</ConfigurationType>
- <CharacterSet>Unicode</CharacterSet>
+ <CharacterSet>NotSet</CharacterSet>
+ </PropertyGroup>
+ <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'" Label="Configuration">
+ <ConfigurationType>DynamicLibrary</ConfigurationType>
+ <CharacterSet>NotSet</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
<ConfigurationType>DynamicLibrary</ConfigurationType>
- <CharacterSet>Unicode</CharacterSet>
+ <CharacterSet>NotSet</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release Static|Win32'" Label="Configuration">
<ConfigurationType>StaticLibrary</ConfigurationType>
- <CharacterSet>Unicode</CharacterSet>
+ <CharacterSet>NotSet</CharacterSet>
+ </PropertyGroup>
+ <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release Static|ARM64'" Label="Configuration">
+ <ConfigurationType>StaticLibrary</ConfigurationType>
+ <CharacterSet>NotSet</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release Static|x64'" Label="Configuration">
<ConfigurationType>StaticLibrary</ConfigurationType>
- <CharacterSet>Unicode</CharacterSet>
+ <CharacterSet>NotSet</CharacterSet>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
<ImportGroup Label="ExtensionSettings">
@@ -93,7 +137,7 @@ <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;_CRT_SECURE_NO_WARNINGS;FT_DEBUG_LEVEL_ERROR;FT_DEBUG_LEVEL_TRACE;FT2_BUILD_LIBRARY;DLL_EXPORT;$(UserDefines);%(PreprocessorDefinitions)</PreprocessorDefinitions>
<BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
<RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
- <DisableLanguageExtensions>true</DisableLanguageExtensions>
+ <DisableLanguageExtensions>false</DisableLanguageExtensions>
<WarningLevel>Level4</WarningLevel>
<DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
<CompileAs>Default</CompileAs>
@@ -106,11 +150,39 @@ <PreprocessorDefinitions>_DEBUG;DLL_EXPORT;$(UserDefines);%(PreprocessorDefinitions)</PreprocessorDefinitions>
<Culture>0x0409</Culture>
</ResourceCompile>
- <Lib>
+ <Link>
+ <GenerateDebugInformation>true</GenerateDebugInformation>
<TargetMachine>MachineX86</TargetMachine>
<AdditionalLibraryDirectories>$(UserLibraryDirectories);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
<AdditionalDependencies>$(UserDependencies);%(AdditionalDependencies)</AdditionalDependencies>
- </Lib>
+ </Link>
+ </ItemDefinitionGroup>
+ <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">
+ <ClCompile>
+ <Optimization>Disabled</Optimization>
+ <AdditionalIncludeDirectories>$(UserOptionDirectory);..\..\..\include;$(UserIncludeDirectories);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+ <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;_CRT_SECURE_NO_WARNINGS;FT_DEBUG_LEVEL_ERROR;FT_DEBUG_LEVEL_TRACE;FT2_BUILD_LIBRARY;DLL_EXPORT;$(UserDefines);%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
+ <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+ <DisableLanguageExtensions>false</DisableLanguageExtensions>
+ <WarningLevel>Level4</WarningLevel>
+ <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+ <CompileAs>Default</CompileAs>
+ <DisableSpecificWarnings>4001</DisableSpecificWarnings>
+ <MultiProcessorCompilation>true</MultiProcessorCompilation>
+ <ProgramDataBaseFileName>$(OutDir)$(TargetName).pdb</ProgramDataBaseFileName>
+ <InlineFunctionExpansion>Disabled</InlineFunctionExpansion>
+ </ClCompile>
+ <ResourceCompile>
+ <PreprocessorDefinitions>_DEBUG;DLL_EXPORT;$(UserDefines);%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ <Culture>0x0409</Culture>
+ </ResourceCompile>
+ <Link>
+ <GenerateDebugInformation>true</GenerateDebugInformation>
+ <TargetMachine>MachineARM64</TargetMachine>
+ <AdditionalLibraryDirectories>$(UserLibraryDirectories);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+ <AdditionalDependencies>$(UserDependencies);%(AdditionalDependencies)</AdditionalDependencies>
+ </Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
<ClCompile>
@@ -119,7 +191,7 @@ <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;_CRT_SECURE_NO_WARNINGS;FT_DEBUG_LEVEL_ERROR;FT_DEBUG_LEVEL_TRACE;FT2_BUILD_LIBRARY;DLL_EXPORT;$(UserDefines);%(PreprocessorDefinitions)</PreprocessorDefinitions>
<BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
<RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
- <DisableLanguageExtensions>true</DisableLanguageExtensions>
+ <DisableLanguageExtensions>false</DisableLanguageExtensions>
<WarningLevel>Level4</WarningLevel>
<DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
<CompileAs>Default</CompileAs>
@@ -132,11 +204,12 @@ <PreprocessorDefinitions>_DEBUG;DLL_EXPORT;$(UserDefines);%(PreprocessorDefinitions)</PreprocessorDefinitions>
<Culture>0x0409</Culture>
</ResourceCompile>
- <Lib>
+ <Link>
+ <GenerateDebugInformation>true</GenerateDebugInformation>
<TargetMachine>MachineX64</TargetMachine>
<AdditionalLibraryDirectories>$(UserLibraryDirectories);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
<AdditionalDependencies>$(UserDependencies);%(AdditionalDependencies)</AdditionalDependencies>
- </Lib>
+ </Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug Static|Win32'">
<ClCompile>
@@ -145,7 +218,7 @@ <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;_CRT_SECURE_NO_WARNINGS;FT_DEBUG_LEVEL_ERROR;FT_DEBUG_LEVEL_TRACE;FT2_BUILD_LIBRARY;$(UserDefines);%(PreprocessorDefinitions)</PreprocessorDefinitions>
<BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
<RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
- <DisableLanguageExtensions>true</DisableLanguageExtensions>
+ <DisableLanguageExtensions>false</DisableLanguageExtensions>
<WarningLevel>Level4</WarningLevel>
<DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
<CompileAs>Default</CompileAs>
@@ -164,6 +237,32 @@ <AdditionalDependencies>$(UserDependencies);%(AdditionalDependencies)</AdditionalDependencies>
</Lib>
</ItemDefinitionGroup>
+ <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug Static|ARM64'">
+ <ClCompile>
+ <Optimization>Disabled</Optimization>
+ <AdditionalIncludeDirectories>$(UserOptionDirectory);..\..\..\include;$(UserIncludeDirectories);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+ <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;_CRT_SECURE_NO_WARNINGS;FT_DEBUG_LEVEL_ERROR;FT_DEBUG_LEVEL_TRACE;FT2_BUILD_LIBRARY;$(UserDefines);%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
+ <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+ <DisableLanguageExtensions>false</DisableLanguageExtensions>
+ <WarningLevel>Level4</WarningLevel>
+ <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+ <CompileAs>Default</CompileAs>
+ <DisableSpecificWarnings>4001</DisableSpecificWarnings>
+ <MultiProcessorCompilation>true</MultiProcessorCompilation>
+ <ProgramDataBaseFileName>$(OutDir)$(TargetName).pdb</ProgramDataBaseFileName>
+ <InlineFunctionExpansion>Disabled</InlineFunctionExpansion>
+ </ClCompile>
+ <ResourceCompile>
+ <PreprocessorDefinitions>_DEBUG;$(UserDefines);%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ <Culture>0x0409</Culture>
+ </ResourceCompile>
+ <Lib>
+ <TargetMachine>MachineARM64</TargetMachine>
+ <AdditionalLibraryDirectories>$(UserLibraryDirectories);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+ <AdditionalDependencies>$(UserDependencies);%(AdditionalDependencies)</AdditionalDependencies>
+ </Lib>
+ </ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug Static|x64'">
<ClCompile>
<Optimization>Disabled</Optimization>
@@ -171,7 +270,7 @@ <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;_CRT_SECURE_NO_WARNINGS;FT_DEBUG_LEVEL_ERROR;FT_DEBUG_LEVEL_TRACE;FT2_BUILD_LIBRARY;$(UserDefines);%(PreprocessorDefinitions)</PreprocessorDefinitions>
<BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
<RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
- <DisableLanguageExtensions>true</DisableLanguageExtensions>
+ <DisableLanguageExtensions>false</DisableLanguageExtensions>
<WarningLevel>Level4</WarningLevel>
<DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
<CompileAs>Default</CompileAs>
@@ -210,12 +309,41 @@ <PreprocessorDefinitions>NDEBUG;DLL_EXPORT;$(UserDefines);%(PreprocessorDefinitions)</PreprocessorDefinitions>
<Culture>0x0409</Culture>
</ResourceCompile>
- <Lib>
- <LinkTimeCodeGeneration>true</LinkTimeCodeGeneration>
+ <Link>
+ <EnableCOMDATFolding>true</EnableCOMDATFolding>
+ <OptimizeReferences>true</OptimizeReferences>
<TargetMachine>MachineX86</TargetMachine>
<AdditionalLibraryDirectories>$(UserLibraryDirectories);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
<AdditionalDependencies>$(UserDependencies);%(AdditionalDependencies)</AdditionalDependencies>
- </Lib>
+ </Link>
+ </ItemDefinitionGroup>
+ <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">
+ <ClCompile>
+ <Optimization>MaxSpeed</Optimization>
+ <InlineFunctionExpansion>AnySuitable</InlineFunctionExpansion>
+ <AdditionalIncludeDirectories>$(UserOptionDirectory);..\..\..\include;$(UserIncludeDirectories);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+ <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;_CRT_SECURE_NO_WARNINGS;FT2_BUILD_LIBRARY;DLL_EXPORT;$(UserDefines);%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+ <FunctionLevelLinking>true</FunctionLevelLinking>
+ <DisableLanguageExtensions>true</DisableLanguageExtensions>
+ <WarningLevel>Level4</WarningLevel>
+ <CompileAs>Default</CompileAs>
+ <DisableSpecificWarnings>4001</DisableSpecificWarnings>
+ <MultiProcessorCompilation>true</MultiProcessorCompilation>
+ <EnableEnhancedInstructionSet>NotSet</EnableEnhancedInstructionSet>
+ <IntrinsicFunctions>true</IntrinsicFunctions>
+ </ClCompile>
+ <ResourceCompile>
+ <PreprocessorDefinitions>NDEBUG;DLL_EXPORT;$(UserDefines);%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ <Culture>0x0409</Culture>
+ </ResourceCompile>
+ <Link>
+ <EnableCOMDATFolding>true</EnableCOMDATFolding>
+ <OptimizeReferences>true</OptimizeReferences>
+ <TargetMachine>MachineARM64</TargetMachine>
+ <AdditionalLibraryDirectories>$(UserLibraryDirectories);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+ <AdditionalDependencies>$(UserDependencies);%(AdditionalDependencies)</AdditionalDependencies>
+ </Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
<ClCompile>
@@ -230,19 +358,19 @@ <CompileAs>Default</CompileAs>
<DisableSpecificWarnings>4001</DisableSpecificWarnings>
<MultiProcessorCompilation>true</MultiProcessorCompilation>
- <EnableEnhancedInstructionSet>StreamingSIMDExtensions2</EnableEnhancedInstructionSet>
<IntrinsicFunctions>true</IntrinsicFunctions>
</ClCompile>
<ResourceCompile>
<PreprocessorDefinitions>NDEBUG;DLL_EXPORT;$(UserDefines);%(PreprocessorDefinitions)</PreprocessorDefinitions>
<Culture>0x0409</Culture>
</ResourceCompile>
- <Lib>
- <LinkTimeCodeGeneration>true</LinkTimeCodeGeneration>
+ <Link>
+ <EnableCOMDATFolding>true</EnableCOMDATFolding>
+ <OptimizeReferences>true</OptimizeReferences>
<TargetMachine>MachineX64</TargetMachine>
<AdditionalLibraryDirectories>$(UserLibraryDirectories);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
<AdditionalDependencies>$(UserDependencies);%(AdditionalDependencies)</AdditionalDependencies>
- </Lib>
+ </Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release Static|Win32'">
<ClCompile>
@@ -265,12 +393,37 @@ <Culture>0x0409</Culture>
</ResourceCompile>
<Lib>
- <LinkTimeCodeGeneration>true</LinkTimeCodeGeneration>
<TargetMachine>MachineX86</TargetMachine>
<AdditionalLibraryDirectories>$(UserLibraryDirectories);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
<AdditionalDependencies>$(UserDependencies);%(AdditionalDependencies)</AdditionalDependencies>
</Lib>
</ItemDefinitionGroup>
+ <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release Static|ARM64'">
+ <ClCompile>
+ <Optimization>MaxSpeed</Optimization>
+ <InlineFunctionExpansion>AnySuitable</InlineFunctionExpansion>
+ <AdditionalIncludeDirectories>$(UserOptionDirectory);..\..\..\include;$(UserIncludeDirectories);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+ <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;_CRT_SECURE_NO_WARNINGS;FT2_BUILD_LIBRARY;$(UserDefines);%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+ <FunctionLevelLinking>true</FunctionLevelLinking>
+ <DisableLanguageExtensions>true</DisableLanguageExtensions>
+ <WarningLevel>Level4</WarningLevel>
+ <CompileAs>Default</CompileAs>
+ <DisableSpecificWarnings>4001</DisableSpecificWarnings>
+ <MultiProcessorCompilation>true</MultiProcessorCompilation>
+ <EnableEnhancedInstructionSet>NotSet</EnableEnhancedInstructionSet>
+ <IntrinsicFunctions>true</IntrinsicFunctions>
+ </ClCompile>
+ <ResourceCompile>
+ <PreprocessorDefinitions>NDEBUG;$(UserDefines);%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ <Culture>0x0409</Culture>
+ </ResourceCompile>
+ <Lib>
+ <TargetMachine>MachineARM64</TargetMachine>
+ <AdditionalLibraryDirectories>$(UserLibraryDirectories);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+ <AdditionalDependencies>$(UserDependencies);%(AdditionalDependencies)</AdditionalDependencies>
+ </Lib>
+ </ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release Static|x64'">
<ClCompile>
<Optimization>MaxSpeed</Optimization>
@@ -284,7 +437,6 @@ <CompileAs>Default</CompileAs>
<DisableSpecificWarnings>4001</DisableSpecificWarnings>
<MultiProcessorCompilation>true</MultiProcessorCompilation>
- <EnableEnhancedInstructionSet>StreamingSIMDExtensions2</EnableEnhancedInstructionSet>
<IntrinsicFunctions>true</IntrinsicFunctions>
</ClCompile>
<ResourceCompile>
@@ -292,7 +444,6 @@ <Culture>0x0409</Culture>
</ResourceCompile>
<Lib>
- <LinkTimeCodeGeneration>true</LinkTimeCodeGeneration>
<TargetMachine>MachineX64</TargetMachine>
<AdditionalLibraryDirectories>$(UserLibraryDirectories);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
<AdditionalDependencies>$(UserDependencies);%(AdditionalDependencies)</AdditionalDependencies>
@@ -316,13 +467,13 @@ <ClCompile Include="..\..\..\src\base\ftpfr.c" />
<ClCompile Include="..\..\..\src\base\ftstroke.c" />
<ClCompile Include="..\..\..\src\base\ftsynth.c" />
- <ClCompile Include="..\..\..\src\base\ftsystem.c" />
<ClCompile Include="..\..\..\src\base\fttype1.c" />
<ClCompile Include="..\..\..\src\base\ftwinfnt.c" />
<ClCompile Include="..\..\..\src\bdf\bdf.c" />
<ClCompile Include="..\..\..\src\cache\ftcache.c" />
<ClCompile Include="..\..\..\src\cff\cff.c" />
<ClCompile Include="..\..\..\src\cid\type1cid.c" />
+ <ClCompile Include="..\..\..\src\dlg\dlgwrap.c" />
<ClCompile Include="..\..\..\src\gzip\ftgzip.c" />
<ClCompile Include="..\..\..\src\lzw\ftlzw.c" />
<ClCompile Include="..\..\..\src\pcf\pcf.c" />
@@ -333,6 +484,7 @@ <ClCompile Include="..\..\..\src\raster\raster.c" />
<ClCompile Include="..\..\..\src\sfnt\sfnt.c" />
<ClCompile Include="..\..\..\src\smooth\smooth.c" />
+ <ClCompile Include="..\..\..\src\sdf\sdf.c" />
<ClCompile Include="..\..\..\src\truetype\truetype.c" />
<ClCompile Include="..\..\..\src\type1\type1.c" />
<ClCompile Include="..\..\..\src\type42\type42.c" />
@@ -340,12 +492,33 @@ <ClCompile Include="..\ftdebug.c">
<DisableLanguageExtensions>false</DisableLanguageExtensions>
</ClCompile>
+ <ClCompile Include="..\ftsystem.c">
+ <DisableLanguageExtensions>false</DisableLanguageExtensions>
+ </ClCompile>
<ResourceCompile Include="..\..\..\src\base\ftver.rc" />
</ItemGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">
</ImportGroup>
+ <ItemGroup Condition="Exists('..\..\..\subprojects\dlg\.git')">
+ <DlgSrc Include="..\..\..\subprojects\dlg\include\dlg\output.h">
+ <DlgDst>..\..\..\include\dlg\output.h</DlgDst>
+ </DlgSrc>
+ <DlgSrc Include="..\..\..\subprojects\dlg\include\dlg\dlg.h">
+ <DlgDst>..\..\..\include\dlg\dlg.h</DlgDst>
+ </DlgSrc>
+ <DlgSrc Include="..\..\..\subprojects\dlg\src\dlg\dlg.c">
+ <DlgDst>..\..\..\src\dlg\dlg.c</DlgDst>
+ </DlgSrc>
+ </ItemGroup>
+ <Target Name="DlgCopy" Inputs="@(DlgSrc)" Outputs="@(DlgSrc->'%(DlgDst)')" Condition="Exists('..\..\..\subprojects\dlg\.git')">
+ <Copy SourceFiles="@(DlgSrc)" DestinationFiles="@(DlgSrc->'%(DlgDst)')" />
+ </Target>
<Target Name="AfterBuild">
- <Copy SourceFiles="$(TargetPath)" DestinationFolder="..\..\..\objs" />
+ <ItemGroup>
+ <TargetFiles Include="$(TargetDir)$(TargetName).*" />
+ </ItemGroup>
+ <Copy SourceFiles="@(TargetFiles)" DestinationFolder="..\..\..\objs" />
+ <Copy SourceFiles="$(TargetDir)$(TargetFileName)" DestinationFolder="..\..\..\..\freetype-demos\bin" Condition="'$(TargetExt)'=='.dll'" />
</Target>
</Project>
diff --git a/builds/windows/vc2010/freetype.vcxproj.filters b/builds/windows/vc2010/freetype.vcxproj.filters index 345e1f1a7..3f68c8260 100644 --- a/builds/windows/vc2010/freetype.vcxproj.filters +++ b/builds/windows/vc2010/freetype.vcxproj.filters @@ -23,9 +23,6 @@ <ClCompile Include="..\..\..\src\base\ftinit.c">
<Filter>Source Files</Filter>
</ClCompile>
- <ClCompile Include="..\..\..\src\base\ftsystem.c">
- <Filter>Source Files</Filter>
- </ClCompile>
<ClCompile Include="..\..\..\src\bdf\bdf.c">
<Filter>Source Files</Filter>
</ClCompile>
@@ -65,6 +62,9 @@ <ClCompile Include="..\..\..\src\sfnt\sfnt.c">
<Filter>Source Files</Filter>
</ClCompile>
+ <ClCompile Include="..\..\..\src\sdf\sdf.c">
+ <Filter>Source Files</Filter>
+ </ClCompile>
<ClCompile Include="..\..\..\src\smooth\smooth.c">
<Filter>Source Files</Filter>
</ClCompile>
@@ -131,6 +131,12 @@ <ClCompile Include="..\..\..\src\base\ftwinfnt.c">
<Filter>Source Files\FT_MODULES</Filter>
</ClCompile>
+ <ClCompile Include="..\..\..\src\dlg\dlgwrap.c">
+ <Filter>Source Files</Filter>
+ </ClCompile>
+ <ClCompile Include="..\ftsystem.c">
+ <Filter>Source Files</Filter>
+ </ClCompile>
</ItemGroup>
<ItemGroup>
<ResourceCompile Include="..\..\..\src\base\ftver.rc">
diff --git a/builds/windows/vc2010/index.html b/builds/windows/vc2010/index.html index 3b60c5fe1..dcb1944b8 100644 --- a/builds/windows/vc2010/index.html +++ b/builds/windows/vc2010/index.html @@ -12,7 +12,7 @@ <p>This directory contains solution and project files for Visual C++ 2010 or newer, named <tt>freetype.sln</tt>, and <tt>freetype.vcxproj</tt>. It compiles the following libraries -from the FreeType 2.10.4 sources:</p> +from the FreeType 2.11.1 sources:</p> <ul> <li>freetype.dll using 'Release' or 'Debug' configurations</li> diff --git a/builds/windows/visualc/freetype.dsp b/builds/windows/visualc/freetype.dsp index 028dd7b39..540f5b9ad 100644 --- a/builds/windows/visualc/freetype.dsp +++ b/builds/windows/visualc/freetype.dsp @@ -58,7 +58,7 @@ BSC32=bscmake.exe # ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /dll /machine:I386
-# ADD LINK32 /nologo /dll /machine:I386 /out:"$(OutDir)\freetype.dll"
+# ADD LINK32 /nologo /dll /machine:I386 /opt:REF,ICF /out:"$(OutDir)\freetype.dll"
!ELSEIF "$(CFG)" == "freetype - Win32 Debug"
diff --git a/builds/windows/visualc/freetype.vcproj b/builds/windows/visualc/freetype.vcproj index ecb5b055c..4cbb6b9e7 100644 --- a/builds/windows/visualc/freetype.vcproj +++ b/builds/windows/visualc/freetype.vcproj @@ -19,7 +19,7 @@ ConfigurationType="2"
UseOfMFC="0"
ATLMinimizesCRunTimeLibraryUsage="false"
- CharacterSet="1"
+ CharacterSet="0"
>
<Tool
Name="VCPreBuildEventTool"
@@ -45,6 +45,7 @@ PreprocessorDefinitions="NDEBUG;WIN32;_LIB;_CRT_SECURE_NO_WARNINGS;FT2_BUILD_LIBRARY;DLL_EXPORT"
StringPooling="true"
RuntimeLibrary="2"
+ EnableEnhancedInstructionSet="2"
EnableFunctionLevelLinking="true"
DisableLanguageExtensions="true"
WarningLevel="4"
@@ -65,6 +66,8 @@ />
<Tool
Name="VCLinkerTool"
+ OptimizeReferences="2"
+ EnableCOMDATFolding="2"
/>
<Tool
Name="VCALinkTool"
@@ -95,7 +98,7 @@ ConfigurationType="4"
UseOfMFC="0"
ATLMinimizesCRunTimeLibraryUsage="false"
- CharacterSet="1"
+ CharacterSet="0"
>
<Tool
Name="VCPreBuildEventTool"
@@ -121,6 +124,7 @@ PreprocessorDefinitions="NDEBUG;WIN32;_LIB;_CRT_SECURE_NO_WARNINGS;FT2_BUILD_LIBRARY"
StringPooling="true"
RuntimeLibrary="0"
+ EnableEnhancedInstructionSet="2"
EnableFunctionLevelLinking="true"
DisableLanguageExtensions="true"
WarningLevel="4"
@@ -165,7 +169,7 @@ ConfigurationType="2"
UseOfMFC="0"
ATLMinimizesCRunTimeLibraryUsage="false"
- CharacterSet="1"
+ CharacterSet="0"
>
<Tool
Name="VCPreBuildEventTool"
@@ -238,7 +242,7 @@ ConfigurationType="4"
UseOfMFC="0"
ATLMinimizesCRunTimeLibraryUsage="false"
- CharacterSet="1"
+ CharacterSet="0"
>
<Tool
Name="VCPreBuildEventTool"
@@ -395,8 +399,40 @@ >
</File>
<File
- RelativePath="..\..\..\src\base\ftsystem.c"
+ RelativePath="..\ftsystem.c"
>
+ <FileConfiguration
+ Name="Release|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ DisableLanguageExtensions="false"
+ />
+ </FileConfiguration>
+ <FileConfiguration
+ Name="Release Static|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ DisableLanguageExtensions="false"
+ />
+ </FileConfiguration>
+ <FileConfiguration
+ Name="Debug|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ DisableLanguageExtensions="false"
+ />
+ </FileConfiguration>
+ <FileConfiguration
+ Name="Debug Static|Win32"
+ >
+ <Tool
+ Name="VCCLCompilerTool"
+ DisableLanguageExtensions="false"
+ />
+ </FileConfiguration>
</File>
<File
RelativePath="..\..\..\src\smooth\smooth.c"
diff --git a/builds/windows/visualc/index.html b/builds/windows/visualc/index.html index cec26d27a..d0c8f2f94 100644 --- a/builds/windows/visualc/index.html +++ b/builds/windows/visualc/index.html @@ -12,7 +12,7 @@ <p>This directory contains project files <tt>freetype.dsp</tt> for Visual C++ 6.0, and <tt>freetype.vcproj</tt> for Visual C++ 2002 through 2008, which you might need to upgrade automatically. -It compiles the following libraries from the FreeType 2.10.4 sources:</p> +It compiles the following libraries from the FreeType 2.11.1 sources:</p> <ul> <li>freetype.dll using 'Release' or 'Debug' configurations</li> diff --git a/builds/windows/visualce/index.html b/builds/windows/visualce/index.html index 474e85c37..b50ef79b0 100644 --- a/builds/windows/visualce/index.html +++ b/builds/windows/visualce/index.html @@ -21,7 +21,7 @@ the following targets: <li>PPC/SP WM6 (Windows Mobile 6)</li> </ul> -It compiles the following libraries from the FreeType 2.10.4 sources:</p> +It compiles the following libraries from the FreeType 2.11.1 sources:</p> <ul> <pre> diff --git a/builds/windows/w32-bcc.mk b/builds/windows/w32-bcc.mk index c80710ea3..d497dd15d 100644 --- a/builds/windows/w32-bcc.mk +++ b/builds/windows/w32-bcc.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/windows/w32-bccd.mk b/builds/windows/w32-bccd.mk index 966bdb51f..701b83d25 100644 --- a/builds/windows/w32-bccd.mk +++ b/builds/windows/w32-bccd.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/windows/w32-dev.mk b/builds/windows/w32-dev.mk index b2af66790..a2f464479 100644 --- a/builds/windows/w32-dev.mk +++ b/builds/windows/w32-dev.mk @@ -5,7 +5,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/windows/w32-gcc.mk b/builds/windows/w32-gcc.mk index f27e6b12a..4117453ec 100644 --- a/builds/windows/w32-gcc.mk +++ b/builds/windows/w32-gcc.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/windows/w32-icc.mk b/builds/windows/w32-icc.mk index 2e696092d..ebab45ef2 100644 --- a/builds/windows/w32-icc.mk +++ b/builds/windows/w32-icc.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/windows/w32-intl.mk b/builds/windows/w32-intl.mk index 88e626975..0fef8d724 100644 --- a/builds/windows/w32-intl.mk +++ b/builds/windows/w32-intl.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/windows/w32-lcc.mk b/builds/windows/w32-lcc.mk index 6cf646064..7aed5b517 100644 --- a/builds/windows/w32-lcc.mk +++ b/builds/windows/w32-lcc.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/windows/w32-mingw32.mk b/builds/windows/w32-mingw32.mk index f2eb0216d..673177885 100644 --- a/builds/windows/w32-mingw32.mk +++ b/builds/windows/w32-mingw32.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/windows/w32-vcc.mk b/builds/windows/w32-vcc.mk index e800d2744..278624f37 100644 --- a/builds/windows/w32-vcc.mk +++ b/builds/windows/w32-vcc.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/windows/w32-wat.mk b/builds/windows/w32-wat.mk index a0de4bbbb..df2ece365 100644 --- a/builds/windows/w32-wat.mk +++ b/builds/windows/w32-wat.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/builds/windows/win32-def.mk b/builds/windows/win32-def.mk index f75985399..15bfd0cfd 100644 --- a/builds/windows/win32-def.mk +++ b/builds/windows/win32-def.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -13,11 +13,11 @@ # fully. -DELETE := del -CAT := type -SEP := $(strip \ ) -BUILD_DIR := $(TOP_DIR)/builds/windows -PLATFORM := windows +DELETE := del +CAT := type +SEP := $(strip \ ) +PLATFORM_DIR := $(TOP_DIR)/builds/windows +PLATFORM := windows # This is used for `make refdoc' and `make refdoc-venv' # @@ -1,6 +1,6 @@ #!/bin/sh # -# Copyright (C) 2002-2020 by +# Copyright (C) 2002-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -93,7 +93,7 @@ fi inode_src=`ls -id $abs_ft2_dir | awk '{print $1}'` inode_dst=`ls -id $abs_curr_dir | awk '{print $1}'` -if test $inode_src -ne $inode_dst; then +if test $inode_src != $inode_dst; then if test ! -d docs; then mkdir docs echo "Copying documentation assets" diff --git a/devel-teeui/rules.mk b/devel-teeui/rules.mk index 864a2866f..b834ce7aa 100644 --- a/devel-teeui/rules.mk +++ b/devel-teeui/rules.mk @@ -19,14 +19,14 @@ MODULE_SRCS += \ $(FREETYPE_ROOT)/src/autofit/autofit.c \ $(FREETYPE_ROOT)/src/gzip/ftgzip.c \ -GLOBAL_INCLUDES += \ +MODULE_EXPORT_INCLUDES += \ $(LOCAL_DIR) \ $(FREETYPE_ROOT)/include \ MODULE_COMPILEFLAGS := -U__ANDROID__ -DFT2_BUILD_LIBRARY MODULE_COMPILEFLAGS += -Wno-implicit-fallthrough -MODULE_DEPS += \ +MODULE_LIBRARY_DEPS += \ trusty/user/base/lib/libc-trusty \ -include make/module.mk +include make/library.mk diff --git a/devel/ft2build.h b/devel/ft2build.h index 0ab8ba0f4..117532ba4 100644 --- a/devel/ft2build.h +++ b/devel/ft2build.h @@ -4,7 +4,7 @@ * * FreeType 2 build and setup macros (development version). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/devel/ftoption.h b/devel/ftoption.h index 307d1a382..f92b4167a 100644 --- a/devel/ftoption.h +++ b/devel/ftoption.h @@ -4,7 +4,7 @@ * * User-selectable configuration macros (specification only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -105,8 +105,7 @@ FT_BEGIN_HEADER * * ``` * FREETYPE_PROPERTIES=truetype:interpreter-version=35 \ - * cff:no-stem-darkening=1 \ - * autofitter:warping=1 + * cff:no-stem-darkening=1 * ``` * */ @@ -433,6 +432,21 @@ FT_BEGIN_HEADER /************************************************************************** * + * Logging + * + * Compiling FreeType in debug or trace mode makes FreeType write error + * and trace log messages to `stderr`. Enabling this macro + * automatically forces the `FT_DEBUG_LEVEL_ERROR` and + * `FT_DEBUG_LEVEL_TRACE` macros and allows FreeType to write error and + * trace log messages to a file instead of `stderr`. For writing logs + * to a file, FreeType uses an the external `dlg` library (the source + * code is in `src/dlg`). + */ +#define FT_DEBUG_LOGGING + + + /************************************************************************** + * * Autofitter debugging * * If `FT_DEBUG_AUTOFIT` is defined, FreeType provides some means to @@ -894,24 +908,6 @@ FT_BEGIN_HEADER /************************************************************************** * - * Compile 'autofit' module with warp hinting. The idea of the warping - * code is to slightly scale and shift a glyph within a single dimension so - * that as much of its segments are aligned (more or less) on the grid. To - * find out the optimal scaling and shifting value, various parameter - * combinations are tried and scored. - * - * You can switch warping on and off with the `warping` property of the - * auto-hinter (see file `ftdriver.h` for more information; by default it - * is switched off). - * - * This experimental option is not active if the rendering mode is - * `FT_RENDER_MODE_LIGHT`. - */ -#define AF_CONFIG_OPTION_USE_WARPER - - - /************************************************************************** - * * Use TrueType-like size metrics for 'light' auto-hinting. * * It is strongly recommended to avoid this option, which exists only to @@ -962,6 +958,21 @@ FT_BEGIN_HEADER /* + * The TT_SUPPORT_COLRV1 macro is defined to indicate to clients that this + * version of FreeType has support for 'COLR' v1 API. This definition is + * useful to FreeType clients that want to build in support for 'COLR' v1 + * depending on a tip-of-tree checkout before it is officially released in + * FreeType, and while the feature cannot yet be tested against using + * version macros. Don't change this macro. This may be removed once the + * feature is in a FreeType release version and version macros can be used + * to test for availability. + */ +#ifdef TT_CONFIG_OPTION_COLOR_LAYERS +#define TT_SUPPORT_COLRV1 +#endif + + + /* * Check CFF darkening parameters. The checks are the same as in function * `cff_property_set` in file `cffdrivr.c`. */ diff --git a/docs/CHANGES b/docs/CHANGES index 3bd5291ae..5eb8cdb94 100644 --- a/docs/CHANGES +++ b/docs/CHANGES @@ -1,4 +1,154 @@ -CHANGES BETWEEN 2.10.3 and 2.10.4 +CHANGES BETWEEN 2.11.0 and 2.11.1 + + I. IMPORTANT CHANGES + + - Some fields in the `CID_FaceDictRec`, `CID_FaceInfoRec`, and + `FT_Data` structures have been changed from signed to unsigned + type, which better reflects the actual usage. It is also an + additional means to protect against malformed input. + + + II. MISCELLANEOUS + + - Cmake support has been further improved. To do that various + backward-incompatible changes were necessary; please see file + `CMakeLists.txt` for more details. + + - Since version 2.11.0, a C99 compiler is necessary to compile + FreeType. + + - The experimental 'COLR' v1 API has been updated to the latest + OpenType standard 1.9. + + - The `apinames` tool got a new option `-wV` to output an OpenVMS + Linker Option File. + + - VMS support was updated. + + - MS Visual Studio support was added to build the demo programs. + + +====================================================================== + +CHANGES BETWEEN 2.10.4 and 2.11.0 + + I. IMPORTANT CHANGES + + - A new rendering module has been added to create 8-bit Signed + Distance Field (SDF) bitmaps for both outline and bitmap glyphs. + The new rendering mode is called `FT_RENDER_MODE_SDF`, the pixel + mode is `FT_PIXEL_MODE_GRAY8`, and the corresponding raster flag + is `FT_RASTER_FLAG_SDF`. + + This work was Anuj Verma's GSoC 2020 project. + + - A new, experimental API is now available for surfacing properties + of 'COLR' v1 color fonts (as the name says, this is an extension + to the 'COLR' table for outline color fonts using the SFNT + container format). 'COLR' v1 fonts are a recently proposed + addition to OFF and OpenType; specification work currently happens + in + + https://github.com/googlefonts/colr-gradients-spec/ + + 'COLR' v1 is expected to be merged to OpenType; the ISO + standardisation process for adding 'COLR' v1 as an amendment to + OFF is underway. + + Functions similar to the already existing 'COLR' API have been + added to access the corresponding data. + + FT_Get_Color_Glyph_Paint + Retrieve the root paint for a given glyph ID. + + FT_Get_Paint_Layers + Access the layers of a `PaintColrLayers` table. + + FT_Get_Colorline_Stops + Retrieve the 'color stops' on a color line. As an input, a + color stop iterator gets used, which in turn is retrieved from + a paint. + + FT_Get_Paint + Dereference an `FT_OpaquePaint` object and retrieve the + corresponding `FT_COLR_Paint` object, which contains details + on how to draw the respective 'COLR' v1 `Paint` table. + + + II. MISCELLANEOUS + + - FreeType has moved its infrastructure to + + https://gitlab.freedesktop.org/freetype + + A side effect is that the git repositories are now called + `freetype.git` and `freetype-demos.git`, which by default expand + to the directories `freetype` and `freetype-demos`, respectively. + The documentation has been updated accordingly. + + FreeType's Savannah repositories will stay; they are now mirrors + of the 'freedesktop.org' repositories. + + - A new function `FT_Get_Transform` returns the values set by + `FT_Set_Transform`. + + - A new configuration macro `FT_DEBUG_LOGGING` is available. It + provides extended debugging capabilities for FreeType, for example + showing a time stamp or displaying the component a tracing message + comes from. See file `docs/DEBUG` for more information. + + This work was Priyesh Kumar's GSoC 2020 project. + + - The legacy Type 1 and CFF engines are further demoted due to lack + of CFF2 charstring support. You now need to use `FT_Property_Set` + to enable them besides the `T1_CONFIG_OPTION_OLD_ENGINE` and + `CFF_CONFIG_OPTION_OLD_ENGINE` options, respectively. + + - The experimental 'warp' mode (AF_CONFIG_OPTION_USE_WARPER) for the + auto-hinter has been removed. + + - The smooth rasterizer performance has been improved by >10%. Note + that due to necessary code changes there might be very subtle + differences in rendering. They are not visible by the eye, + however. + + - PCF bitmap fonts compressed with LZW (these are usually files with + the extension `.pcf.Z`) are now handled correctly. + + - Improved Meson build files, including support to build the + FreeType demo programs. + + - A new demo program `ftsdf` is available to display Signed Distance + Fields of glyphs. + + - The `ftlint` demo program has been extended to do more testing of + its input. In particular, it can display horizontal and vertical + acutances for quality assessment, together with computing MD5 + checksums of rendered glyphs. + + [The acutance measures how sharply the pixel coverage changes at + glyph edges. For monochrome bitmaps, it is always 2.0 in either + X or Y direction. For anti-aliased bitmaps, it depends on the + hinting and the shape of a glyph and might approach or even reach + value 2.0 for glyphs like 'I', 'L', '+', '-', or '=', while it + might be lower for glyphs like 'O', 'S', or 'W'.] + + - The `ttdebug` demo program didn't show changed point coordinates + (bug introduced in version 2.10.3). + + - It is now possible to adjust the axis increment for variable fonts + in the `ftmulti` demo program. + + - It is now possible to change the hinting engine in the `ftstring` + demo program. + + - The graphical demo programs work better now in native color depth + on win32 and x11. + + +====================================================================== + +CHANGES BETWEEN 2.10.3 and 2.10.4 (2020-Oct-20) I. IMPORTANT BUG FIXES @@ -13,7 +163,7 @@ CHANGES BETWEEN 2.10.3 and 2.10.4 ====================================================================== -CHANGES BETWEEN 2.10.2 and 2.10.3 +CHANGES BETWEEN 2.10.2 and 2.10.3 (2020-Oct-10) I. IMPORTANT CHANGES @@ -63,7 +213,7 @@ CHANGES BETWEEN 2.10.2 and 2.10.3 ====================================================================== -CHANGES BETWEEN 2.10.1 and 2.10.2 +CHANGES BETWEEN 2.10.1 and 2.10.2 (2020-May-09) I. IMPORTANT CHANGES @@ -100,7 +250,7 @@ CHANGES BETWEEN 2.10.1 and 2.10.2 ====================================================================== -CHANGES BETWEEN 2.10.0 and 2.10.1 +CHANGES BETWEEN 2.10.0 and 2.10.1 (2019-Jul-01) I. IMPORTANT BUG FIXES @@ -154,7 +304,7 @@ CHANGES BETWEEN 2.10.0 and 2.10.1 ====================================================================== -CHANGES BETWEEN 2.9.1 and 2.10.0 +CHANGES BETWEEN 2.9.1 and 2.10.0 (2019-Mar-15) I. IMPORTANT CHANGES @@ -280,7 +430,7 @@ CHANGES BETWEEN 2.9.1 and 2.10.0 ====================================================================== -CHANGES BETWEEN 2.9 and 2.9.1 +CHANGES BETWEEN 2.9 and 2.9.1 (2019-May-01) I. IMPORTANT BUG FIXES @@ -328,7 +478,7 @@ CHANGES BETWEEN 2.9 and 2.9.1 ====================================================================== -CHANGES BETWEEN 2.8.1 and 2.9 +CHANGES BETWEEN 2.8.1 and 2.9 (2018-Jan-08) I. IMPORTANT BUG FIXES @@ -418,7 +568,7 @@ CHANGES BETWEEN 2.8.1 and 2.9 ====================================================================== -CHANGES BETWEEN 2.8 and 2.8.1 +CHANGES BETWEEN 2.8 and 2.8.1 (2017-Sep-16) I. IMPORTANT BUG FIXES @@ -501,7 +651,7 @@ CHANGES BETWEEN 2.8 and 2.8.1 ====================================================================== -CHANGES BETWEEN 2.7.1 and 2.8 +CHANGES BETWEEN 2.7.1 and 2.8 (2017-May-13) I. IMPORTANT CHANGES @@ -622,7 +772,7 @@ CHANGES BETWEEN 2.7.1 and 2.8 ====================================================================== -CHANGES BETWEEN 2.7 and 2.7.1 +CHANGES BETWEEN 2.7 and 2.7.1 (2016-Dec-30) I. IMPORTANT CHANGES @@ -699,7 +849,7 @@ CHANGES BETWEEN 2.7 and 2.7.1 ====================================================================== -CHANGES BETWEEN 2.6.5 and 2.7 +CHANGES BETWEEN 2.6.5 and 2.7 (2016-Sep-08) I. IMPORTANT CHANGES @@ -763,7 +913,7 @@ CHANGES BETWEEN 2.6.5 and 2.7 ====================================================================== -CHANGES BETWEEN 2.6.4 and 2.6.5 +CHANGES BETWEEN 2.6.4 and 2.6.5 (2016-Jul-12) I. IMPORTANT BUG FIXES @@ -783,7 +933,7 @@ CHANGES BETWEEN 2.6.4 and 2.6.5 ====================================================================== -CHANGES BETWEEN 2.6.3 and 2.6.4 +CHANGES BETWEEN 2.6.3 and 2.6.4 (2016-Jul-05) I. IMPORTANT CHANGES @@ -849,7 +999,7 @@ CHANGES BETWEEN 2.6.3 and 2.6.4 ====================================================================== -CHANGES BETWEEN 2.6.2 and 2.6.3 +CHANGES BETWEEN 2.6.2 and 2.6.3 (2016-Feb-08) I. IMPORTANT CHANGES @@ -898,7 +1048,7 @@ CHANGES BETWEEN 2.6.2 and 2.6.3 ====================================================================== -CHANGES BETWEEN 2.6.1 and 2.6.2 +CHANGES BETWEEN 2.6.1 and 2.6.2 (2015-Nov-28) I. IMPORTANT CHANGES @@ -958,7 +1108,7 @@ CHANGES BETWEEN 2.6.1 and 2.6.2 ====================================================================== -CHANGES BETWEEN 2.6 and 2.6.1 +CHANGES BETWEEN 2.6 and 2.6.1 (2015-Oct-04) I. IMPORTANT BUG FIXES @@ -1039,7 +1189,7 @@ CHANGES BETWEEN 2.6 and 2.6.1 ====================================================================== -CHANGES BETWEEN 2.5.5 and 2.6 +CHANGES BETWEEN 2.5.5 and 2.6 (2015-Jun-07) I. IMPORTANT CHANGES @@ -1145,7 +1295,7 @@ CHANGES BETWEEN 2.5.5 and 2.6 ====================================================================== -CHANGES BETWEEN 2.5.4 and 2.5.5 +CHANGES BETWEEN 2.5.4 and 2.5.5 (2014-Dec-30) I. IMPORTANT BUG FIXES @@ -1155,7 +1305,7 @@ CHANGES BETWEEN 2.5.4 and 2.5.5 ====================================================================== -CHANGES BETWEEN 2.5.3 and 2.5.4 +CHANGES BETWEEN 2.5.3 and 2.5.4 (2014-Dec-06) I. IMPORTANT BUG FIXES @@ -1226,7 +1376,7 @@ CHANGES BETWEEN 2.5.3 and 2.5.4 ====================================================================== -CHANGES BETWEEN 2.5.2 and 2.5.3 +CHANGES BETWEEN 2.5.2 and 2.5.3 (2014-Mar-06) I. IMPORTANT BUG FIXES @@ -1294,7 +1444,7 @@ CHANGES BETWEEN 2.5.2 and 2.5.3 ====================================================================== -CHANGES BETWEEN 2.5.1 and 2.5.2 +CHANGES BETWEEN 2.5.1 and 2.5.2 (2013-Dec-08) I. IMPORTANT BUG FIXES @@ -1318,7 +1468,7 @@ CHANGES BETWEEN 2.5.1 and 2.5.2 ====================================================================== -CHANGES BETWEEN 2.5 and 2.5.1 +CHANGES BETWEEN 2.5 and 2.5.1 (2013-Nov-25) I. IMPORTANT BUG FIXES @@ -1422,7 +1572,7 @@ CHANGES BETWEEN 2.5 and 2.5.1 ====================================================================== -CHANGES BETWEEN 2.4.12 and 2.5 +CHANGES BETWEEN 2.4.12 and 2.5 (2013-Jun-19) I. IMPORTANT BUG FIXES @@ -1502,7 +1652,7 @@ CHANGES BETWEEN 2.4.12 and 2.5 ====================================================================== -CHANGES BETWEEN 2.4.11 and 2.4.12 +CHANGES BETWEEN 2.4.11 and 2.4.12 (2013-May-08) - We have another CFF parsing and hinting engine! Written by Dave Arnold <darnold@adobe.com>, this work has been contributed by @@ -1590,7 +1740,7 @@ index ebcf189..3f2ce6b 100644 ====================================================================== -CHANGES BETWEEN 2.4.10 and 2.4.11 +CHANGES BETWEEN 2.4.10 and 2.4.11 (2012-Dec-20) I. IMPORTANT BUG FIXES @@ -1650,7 +1800,7 @@ CHANGES BETWEEN 2.4.10 and 2.4.11 ====================================================================== -CHANGES BETWEEN 2.4.9 and 2.4.10 +CHANGES BETWEEN 2.4.9 and 2.4.10 (2012-Jun-15) I. IMPORTANT BUG FIXES @@ -1675,7 +1825,7 @@ CHANGES BETWEEN 2.4.9 and 2.4.10 ====================================================================== -CHANGES BETWEEN 2.4.8 and 2.4.9 +CHANGES BETWEEN 2.4.8 and 2.4.9 (2012-Mar-08) I. IMPORTANT BUG FIXES @@ -1703,7 +1853,7 @@ CHANGES BETWEEN 2.4.8 and 2.4.9 ====================================================================== -CHANGES BETWEEN 2.4.7 and 2.4.8 +CHANGES BETWEEN 2.4.7 and 2.4.8 (2011-Nov-14) I. IMPORTANT BUG FIXES @@ -1719,7 +1869,7 @@ CHANGES BETWEEN 2.4.7 and 2.4.8 ====================================================================== -CHANGES BETWEEN 2.4.6 and 2.4.7 +CHANGES BETWEEN 2.4.6 and 2.4.7 (2011-Oct-18) I. IMPORTANT BUG FIXES @@ -1736,7 +1886,7 @@ CHANGES BETWEEN 2.4.6 and 2.4.7 ====================================================================== -CHANGES BETWEEN 2.4.5 and 2.4.6 +CHANGES BETWEEN 2.4.5 and 2.4.6 (2011-Jul-29) I. IMPORTANT BUG FIXES @@ -1775,7 +1925,7 @@ CHANGES BETWEEN 2.4.5 and 2.4.6 ====================================================================== -CHANGES BETWEEN 2.4.4 and 2.4.5 +CHANGES BETWEEN 2.4.4 and 2.4.5 (2011-Jun-25) I. IMPORTANT BUG FIXES @@ -1822,7 +1972,7 @@ CHANGES BETWEEN 2.4.4 and 2.4.5 ====================================================================== -CHANGES BETWEEN 2.4.3 and 2.4.4 +CHANGES BETWEEN 2.4.3 and 2.4.4 (2010-Nov-28) I. IMPORTANT BUG FIXES @@ -1847,7 +1997,7 @@ CHANGES BETWEEN 2.4.3 and 2.4.4 ====================================================================== -CHANGES BETWEEN 2.4.2 and 2.4.3 +CHANGES BETWEEN 2.4.2 and 2.4.3 (2010-Oct-03) I. IMPORTANT BUG FIXES @@ -1866,7 +2016,7 @@ CHANGES BETWEEN 2.4.2 and 2.4.3 ====================================================================== -CHANGES BETWEEN 2.4.1 and 2.4.2 +CHANGES BETWEEN 2.4.1 and 2.4.2 (2010-Aug-06) I. IMPORTANT BUG FIXES @@ -1890,7 +2040,7 @@ CHANGES BETWEEN 2.4.1 and 2.4.2 ====================================================================== -CHANGES BETWEEN 2.4.0 and 2.4.1 +CHANGES BETWEEN 2.4.0 and 2.4.1 (2010-Jul-18) I. IMPORTANT CHANGES @@ -1900,7 +2050,7 @@ CHANGES BETWEEN 2.4.0 and 2.4.1 ====================================================================== -CHANGES BETWEEN 2.3.12 and 2.4.0 +CHANGES BETWEEN 2.3.12 and 2.4.0 (2010-Jul-12) I. IMPORTANT CHANGES @@ -5299,7 +5449,7 @@ Extensions support: ------------------------------------------------------------------------ -Copyright (C) 2000-2020 by +Copyright (C) 2000-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, diff --git a/docs/CUSTOMIZE b/docs/CUSTOMIZE index 0f92e7004..a03f9ddd0 100644 --- a/docs/CUSTOMIZE +++ b/docs/CUSTOMIZE @@ -139,7 +139,7 @@ IV. Overriding default configuration and module headers ---------------------------------------------------------------------- -Copyright (C) 2003-2020 by +Copyright (C) 2003-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, diff --git a/docs/DEBUG b/docs/DEBUG index a96b5e27b..4f358779a 100644 --- a/docs/DEBUG +++ b/docs/DEBUG @@ -44,6 +44,21 @@ located in the file `ftoption.h'. The macros are: When `FT2_DEBUG_MEMORY' isn't defined at runtime, the debugging memory manager is ignored, and performance is unaffected. + FT_DEBUG_LOGGING + + #define this macro for enhanced logging support; it automatically + sets `FT_DEBUG_LEVEL_TRACE' and `FT_DEBUG_LEVEL_ERROR'. + + If defined, `FT_TRACE' and `FT_ERROR' can send tracing and + debugging messages to a file. The location of the log file has to + be set with the `FT_LOGGING_FILE' environment variable (more on + this later). + + The main enhancements are the possibility of logging the time and + the name of the `FT_COMPONENT' macro together with the affected + `FT_TRACE' or `FT_ERROR' calls. See below how to activate this in + the `FT2_DEBUG' environment variable. + II. Debugging macros -------------------- @@ -150,6 +165,43 @@ behaviour of FreeType at runtime. the memory and io components, which are set to the trace levels 5 and 4, respectively. + If `FT_DEBUG_LOGGING' is defined, two more options are available. + + * -v: Print also the name of FreeType's component from which the + current log is produced, together with the tracing level. + + * -t: Print also the time. + + Here are some examples how the output might look like. + + FT2_DEBUG="any:7 memory:5 -vt" + + => [20:32:02:44969 ttload:2] table directory loaded + + FT2_DEBUG="any:7 memory:5 -t" + + => [20:32:02:44969] table directory loaded + + FT2_DEBUG="any:7 memory:5 -v" + + => [ttload:2] table directory loaded + + + FT_LOGGING_FILE + + This variable is only used if FreeType is built with the + `FT_DEBUG_LOGGING' macro defined. It contains the path to the + file where the user wants to put his log file. If it is not set, + FreeType uses stderr. + + Examples: + + On UNIX-like systems with bash: + export FT_LOGGING_FILE="/tmp/freetype2.log" + + On Windows: + set FT_LOGGING_FILE=C:\Users\AppData\Local\Temp\freetype2.log + FT2_DEBUG_MEMORY @@ -201,9 +253,51 @@ behaviour of FreeType at runtime. If it is undefined, or if its value is not strictly positive, freed blocks are released at runtime. + +IV. Additional Capabilities with `FT_DEBUG_LOGGING' +--------------------------------------------------- + +If `FT_DEBUG_LOGGING' is defined, four APIs are available to provide +additional debugging support. Use + + #include <freetype/ftlogging.h> + +to access them. + + FT_Trace_Set_Level( const char* level ) + + By default, FreeType uses the tracing levels set in the + `FT2_DEBUG' environment variable. Use this function to override + the value with `level'. Use value `NULL' to disable tracing. + + FT_Trace_Set_Default_Level(): + + Reset the tracing levels to the default value, i.e., the value of + the `FT2_DEBUG' environment variable or no tracing if not set. + + FT_Set_Log_Handler( ft_custom_log_handler handler ): + + Use `handler' as a custom handler for formatting tracing and error + messages. The `ft_custom_log_handler' typedef has the following + prototype. + + void + (*ft_custom_log_handler)( const char* ft_component, + const char* fmt, + va_list args ); + + `ft_component' is the current component like `ttload', `fmt' is the + first argument of `FT_TRACE' or `FT_ERROR', and `args' holds the + remaining arguments. + + FT_Set_Default_Log_Handler(): + + Reset the log handler to the default version. + + ------------------------------------------------------------------------ -Copyright (C) 2002-2020 by +Copyright (C) 2002-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, diff --git a/docs/DOCGUIDE b/docs/DOCGUIDE index 89617b429..499608d57 100644 --- a/docs/DOCGUIDE +++ b/docs/DOCGUIDE @@ -154,7 +154,7 @@ above for consistency. Note that there may be cases where having two asterisks or underscores in a line may lead to text being picked up as italics or bold. -Although unintentional, this is correct markdown behavior. +Although unintentional, this is correct markdown behavior. For inline code, wrap the sequence with backticks (see below). This renders symbols correctly without modifications. If a symbol is @@ -201,7 +201,7 @@ Other sub-sections can be linked with the `@` symbol: @description: While FreeType's CFF driver doesn't expose API functions by - itself, it is possible to control its behaviour with + itself, it is possible to control its behaviour with @FT_Property_Set and @FT_Property_Get. If a field in the `values` table of another sub-section is linked, the @@ -285,7 +285,7 @@ is converted to ---------------------------------------------------------------------- -Copyright (C) 2018-2020 by +Copyright (C) 2018-2021 by Nikhil Ramakrishnan, David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, diff --git a/docs/INSTALL b/docs/INSTALL index 814fc7bcc..be56e02c5 100644 --- a/docs/INSTALL +++ b/docs/INSTALL @@ -4,65 +4,89 @@ your system and the level of customization you need. Here is a short overview of the documentation available: -I. Normal installation and upgrades -=================================== +I. Prerequisites and dependencies +================================= - 1. Unix Systems (including Mac OS X, Cygwin, and MSys on Windows) + FreeType is a low level C library that only depends on the standard + C library with very few platform-dependent optimizations utilized at + build time. Any C99-compliant compiler should be able to compile + FreeType. System libraries, such as zlib, Gzip, bzip2, Brotli, + and libpng, might be used to handle compressed fonts or decode + embedded PNG glyphs. - Please read `INSTALL.UNIX' to install or upgrade FreeType 2 on a + FreeType auto-configuration scripts should be able to detect the + prerequisites if the necessary headers are available at the default + locations. Otherwise, modify `include/freetype/config/ftoption.h` + to control how the FreeType library gets built. Normally, you don't + need to change anything. + + Applications have very limited control over FreeType's behaviour at + run-time; look at the documentation of function `FT_Property_Set`. + + +II. Normal installation and upgrades +==================================== + + 1. Unix and Unix-like systems + + This also includes MacOS, Cygwin, MinGW + MSYS, Mingw-w64 + MSYS2, + and possibly other, similar environments. + + Please read `INSTALL.UNIX` to install or upgrade FreeType 2 on a Unix system. Note that you *need* GNU Make for automatic compilation, since other make tools won't work (this includes BSD Make). GNU Make VERSION 3.81 OR NEWER IS NEEDED! - [For `cmake' see below.] + 2. Other systems using GNU Make - 2. On VMS with the `mms' build tool + On some non-Unix platforms, it is possible to build the library + using only the GNU Make utility. Note that *NO OTHER MAKE TOOL + WILL WORK*[1]! This methods supports several compilers on + Windows, OS/2, and BeOS, including MinGW* (without MSYS*), Visual + C++, Borland C++, and more. - See `INSTALL.VMS' for installation instructions on this platform. + Instructions are provided in the file `INSTALL.GNU`. - 3. Other systems using GNU Make + 3. Other build tools and platforms. - On non-Unix platforms, it is possible to build the library using - GNU Make utility. Note that *NO OTHER MAKE TOOL WILL WORK*[1]! - This methods supports several compilers on Windows, OS/2, and - BeOS, including MinGW, Visual C++, Borland C++, and more. + A few other tools can be used to build FreeType. You can find + the corresponding instruction files in the FreeType root folder + or the builds/ sub-folder. - Instructions are provided in the file `INSTALL.GNU'. + CMake :: see `CMakeLists.txt` for more information + Meson :: see `meson.build` for more information + MSBuild :: see `builds/windows/vc2010/freetype.vcxproj` + MMS :: see `vms_make.com` and `docs/INSTALL.VMS` 4. With an IDE Project File (e.g., for Visual Studio or CodeWarrior) - We provide a small number of `project files' for various IDEs to + We provide a small number of 'project files' for various IDEs to automatically build the library as well. Note that these files - are not supported and only sporadically maintained by FreeType - developers, so don't expect them to work in each release. + are not actively supported by FreeType developers, they can break + or become obsolete. - To find them, have a look at the content of the `builds/<system>' + To find them, have a look at the content of the `builds/<system>` directory, where <system> stands for your OS or environment. - 5. Using cmake - - See the top-level `CMakeLists.txt' file for more information. - - - 6. From you own IDE, or own Makefiles + 5. From you own IDE, or own Makefiles If you want to create your own project file, follow the - instructions given in the `INSTALL.ANY' document of this + instructions given in the `INSTALL.ANY` document of this directory. -II. Custom builds of the library -================================ +III. Custom builds of the library +================================= Customizing the compilation of FreeType is easy, and allows you to select only the components of the font engine that you really need. - For more details read the file `CUSTOMIZE'. + For more details read the file `CUSTOMIZE`. ---------------------------------------------------------------------- @@ -73,11 +97,11 @@ II. Custom builds of the library https://makepp.sourceforge.net for more information; you need version 2.0 or newer, and you must - pass option `--norc-substitution'. + pass option `--norc-substitution`. ---------------------------------------------------------------------- -Copyright (C) 2000-2020 by +Copyright (C) 2000-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, diff --git a/docs/INSTALL.ANY b/docs/INSTALL.ANY index 879dddb89..313661316 100644 --- a/docs/INSTALL.ANY +++ b/docs/INSTALL.ANY @@ -10,7 +10,7 @@ I. Standard procedure * If you use macro names for FreeType header files (while mandatory in earlier versions, this is now optional since FreeType version - 2.10.3) it is necessary to disable pre-compiled headers. This is + 2.6.1) it is necessary to disable pre-compiled headers. This is very important for Visual C++, because lines like #include FT_FREETYPE_H @@ -21,9 +21,9 @@ I. Standard procedure * You need to add the directory `include' to your include path when compiling the library. - * FreeType 2 is made of several components; each of them is located - in a subdirectory of `freetype2/src'. For example, - `freetype2/src/truetype/' contains the TrueType font driver. + * FreeType 2 is made of several components; each of them is located + in a subdirectory of `freetype/src'. For example, + `freetype/src/truetype/' contains the TrueType font driver. * DO NOT COMPILE ALL C FILES! Rather, compile the following ones. @@ -73,6 +73,7 @@ I. Standard procedure formats) src/raster/raster.c -- monochrome rasterizer + src/sdf/sdf.c -- Signed Distance Field driver src/smooth/smooth.c -- anti-aliasing rasterizer -- auxiliary modules (optional) @@ -125,9 +126,9 @@ II. Support for flat-directory compilation 1. Copy all files in current directory - cp freetype2/src/base/*.[hc] . - cp freetype2/src/raster1/*.[hc] . - cp freetype2/src/smooth/*.[hc] . + cp freetype/src/base/*.[hc] . + cp freetype/src/raster1/*.[hc] . + cp freetype/src/smooth/*.[hc] . etc. 2. Compile sources @@ -143,7 +144,7 @@ II. Support for flat-directory compilation ---------------------------------------------------------------------- -Copyright (C) 2003-2020 by +Copyright (C) 2003-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, diff --git a/docs/INSTALL.CROSS b/docs/INSTALL.CROSS index 85118056c..f57b14c84 100644 --- a/docs/INSTALL.CROSS +++ b/docs/INSTALL.CROSS @@ -163,7 +163,7 @@ procedure. ---------------------------------------------------------------------- -Copyright (C) 2006-2020 by +Copyright (C) 2006-2021 by suzuki toshiya, David Turner, Robert Wilhelm, and Werner Lemberg. diff --git a/docs/INSTALL.GNU b/docs/INSTALL.GNU index 8fdbb825e..a04e6fc1c 100644 --- a/docs/INSTALL.GNU +++ b/docs/INSTALL.GNU @@ -11,9 +11,6 @@ instructions in the file `INSTALL.UNIX' instead. 1. Install GNU Make ------------------- - Because GNU Make is the only Make tool supported to compile - FreeType 2, you should install it on your machine. - The FreeType 2 build system relies on many features special to GNU Make. @@ -100,6 +97,28 @@ instructions in the file `INSTALL.UNIX' instead. step 5. + 3a. Use clang instead of gcc + ---------------------------- + + The `clang' compiler can use FreeType's setup for `gcc'; it is + sufficient to set the `CC' variable, for example + + make CC=clang + + + 3b. Compiling with a C++ compiler + --------------------------------- + + FreeType can be built with a C++ compiler, for example + + make CC="g++" + + If `clang++' should be used it is necessary to also override the + `ANSIFLAGS' variable: + + make CC="clang++" ANSIFLAGS="" + + 4. Configure the build system for an unknown platform/compiler -------------------------------------------------------------- @@ -133,7 +152,8 @@ instructions in the file `INSTALL.UNIX' instead. To launch the build, simply invoke GNU Make again: The top Makefile will detect the configuration file and run the build with - it. + it. If you have used variables in step 3, you must use the same + variables here, too. Final note @@ -148,7 +168,7 @@ instructions in the file `INSTALL.UNIX' instead. ---------------------------------------------------------------------- -Copyright (C) 2003-2020 by +Copyright (C) 2003-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, diff --git a/docs/INSTALL.UNIX b/docs/INSTALL.UNIX index f8d220ac2..ff4eabedf 100644 --- a/docs/INSTALL.UNIX +++ b/docs/INSTALL.UNIX @@ -44,14 +44,23 @@ or MSys on Win32: sh autogen.sh - In case of problems, you may need to install or upgrade Automake, - Autoconf or Libtool. See README.git in the top-level directory + In case of problems, you may need to install or upgrade Automake, + Autoconf or Libtool. See `README.git' in the top-level directory for more information. 3. Build and install the library -------------------------------- + Say + + ./configure --help + + to see the list of possible configuration options and important + environment variables. The ./configure script will detect some + prerequisite system libraries (libpng, brotli, etc.) if their + headers are available at the default locations. + The following should work on all Unix systems where the `make' command invokes GNU Make: @@ -75,6 +84,18 @@ or MSys on Win32: If this still doesn't work, there must be a problem with your system (e.g., you are using a very old version of GNU Make). + For library identification, FreeType's `configure' script uses the + `pkg-config' interface: Assuming it needs library `foo', it calls + the `pkg-config' program to find information on library `foo', + which in turn looks for a `foo.pc' file installed at the system. + Some platforms, however, don't come with `pkg-support'; you then + have to use environment variables as described by `configure + --help'. Example: + + LIBPNG_CFLAGS="-I/path/to/libpng/include/directory" \ + LIBPNG_LIBS="-L/path/to/libpng/lib/directory" \ + configure ... + It is possible to compile FreeType in a different directory. Assuming the FreeType source files in directory `/src/freetype' a compilation in directory `foo' works as follows: @@ -105,7 +126,7 @@ or MSys on Win32: ---------------------------------------------------------------------- -Copyright (C) 2003-2020 by +Copyright (C) 2003-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, diff --git a/docs/INSTALL.VMS b/docs/INSTALL.VMS index e1817ec61..f0dec3bd1 100644 --- a/docs/INSTALL.VMS +++ b/docs/INSTALL.VMS @@ -49,7 +49,7 @@ V7.2-1. ------------------------------------------------------------------------ -Copyright (C) 2000-2020 by +Copyright (C) 2000-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, diff --git a/docs/LICENSE.TXT b/docs/LICENSE.TXT deleted file mode 100644 index af5a1c50f..000000000 --- a/docs/LICENSE.TXT +++ /dev/null @@ -1,39 +0,0 @@ - -The FreeType 2 font engine is copyrighted work and cannot be used -legally without a software license. In order to make this project -usable to a vast majority of developers, we distribute it under two -mutually exclusive open-source licenses. - -This means that *you* must choose *one* of the two licenses described -below, then obey all its terms and conditions when using FreeType 2 in -any of your projects or products. - - - The FreeType License, found in the file `FTL.TXT', which is similar - to the original BSD license *with* an advertising clause that forces - you to explicitly cite the FreeType project in your product's - documentation. All details are in the license file. This license - is suited to products which don't use the GNU General Public - License. - - Note that this license is compatible to the GNU General Public - License version 3, but not version 2. - - - The GNU General Public License version 2, found in `GPLv2.TXT' (any - later version can be used also), for programs which already use the - GPL. Note that the FTL is incompatible with GPLv2 due to its - advertisement clause. - -The contributed BDF and PCF drivers come with a license similar to that -of the X Window System. It is compatible to the above two licenses (see -file src/bdf/README and src/pcf/README). The same holds for the files -`fthash.c' and `fthash.h'; their code was part of the BDF driver in -earlier FreeType versions. - -The gzip module uses the zlib license (see src/gzip/zlib.h) which too is -compatible to the above two licenses. - -The MD5 checksum support (only used for debugging in development builds) -is in the public domain. - - ---- end of LICENSE.TXT --- @@ -27,7 +27,7 @@ Other bugs have been registered at the savannah bugzilla of FreeType. ------------------------------------------------------------------------ -Copyright (C) 2001-2020 by +Copyright (C) 2001-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, diff --git a/docs/VERSIONS.TXT b/docs/VERSIONS.TXT index 4e281a725..afe50a4c6 100644 --- a/docs/VERSIONS.TXT +++ b/docs/VERSIONS.TXT @@ -60,6 +60,8 @@ found on _most_ systems, but not all of them: release libtool so ------------------------------- + 2.11.1 24.1.18 6.18.1 + 2.11.0 24.0.18 6.18.0 2.10.4 23.4.17 6.17.4 2.10.3 23.3.17 6.17.3 2.10.2 23.2.17 6.17.2 @@ -117,7 +119,7 @@ other release numbers. ---------------------------------------------------------------------- -Copyright (C) 2002-2020 by +Copyright (C) 2002-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, diff --git a/docs/formats.txt b/docs/formats.txt index e640fab25..1c25ac00b 100644 --- a/docs/formats.txt +++ b/docs/formats.txt @@ -79,8 +79,7 @@ which isn't supported yet please send a mail too. SFNT PS TYPE_1 --- type1 Type 1 GX Font Format (for the Mac) [3] - SFNT PS TYPE_1 CID cid 5180.sfnt.pdf (for the Mac) - [3] + SFNT PS TYPE_1 CID cid 5180.sfnt.pdf (for the Mac) [3] SFNT PS CFF --- cff OT spec, 5176.CFF.pdf (`OTTO' format) SFNT PS CFF CID cff OT spec, 5176.CFF.pdf @@ -97,6 +96,12 @@ which isn't supported yet please send a mail too. (`?var' + `?VAR' tables) + WOFF --- --- --- cff, Compressed SFNT, ver. 1.0 [6] + truetype + WOFF2 --- --- --- cff, Compressed SFNT, ver. 2.0 [6] + truetype + + --- PS TYPE_1 --- type1 T1_SPEC.pdf (PFA, Type 1 font resource) PFB PS TYPE_1 --- type1 T1_SPEC.pdf, @@ -185,13 +190,17 @@ which isn't supported yet please send a mail too. https://fontforge.github.io/pcf-format.html -[5] This is from MS Windows 3; see Microsoft's Knowledge Base article at +[5] This is from MS Windows 3; see Microsoft's Knowledge Base article + at https://support.microsoft.com/kb/65123 +[6] Supported font formats are TrueType and OpenType fonts as + defined in the OpenType specification 1.6 and newer. + ------------------------------------------------------------------------ -Copyright (C) 2004-2020 by +Copyright (C) 2004-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, diff --git a/docs/freetype-config.1 b/docs/freetype-config.1 index 7dea66afa..8145c9f2e 100644 --- a/docs/freetype-config.1 +++ b/docs/freetype-config.1 @@ -1,4 +1,4 @@ -.TH FREETYPE-CONFIG 1 "October 2020" "FreeType 2.10.4" +.TH FREETYPE-CONFIG 1 "December 2021" "FreeType 2.11.1" . . .SH NAME diff --git a/docs/markdown/stylesheets/extra.css b/docs/markdown/stylesheets/extra.css index a99e77fb6..5d999ed5d 100644 --- a/docs/markdown/stylesheets/extra.css +++ b/docs/markdown/stylesheets/extra.css @@ -1,13 +1,7 @@ /* Body and page */ -.wy-nav-content { - max-width: 90%; -} .md-grid { max-width: 90%; } -.md-sidebar--secondary { - margin-left: 90%; -} p { text-align: justify; } diff --git a/ChangeLog.20 b/docs/oldlogs/ChangeLog.20 index 9f81914eb..15ae8fe97 100644 --- a/ChangeLog.20 +++ b/docs/oldlogs/ChangeLog.20 @@ -2597,7 +2597,7 @@ ---------------------------------------------------------------------------- -Copyright (C) 2000-2020 by +Copyright (C) 2000-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, modified, diff --git a/ChangeLog.21 b/docs/oldlogs/ChangeLog.21 index f36f5b7fb..71f9f00db 100644 --- a/ChangeLog.21 +++ b/docs/oldlogs/ChangeLog.21 @@ -9422,7 +9422,7 @@ ---------------------------------------------------------------------------- -Copyright (C) 2002-2020 by +Copyright (C) 2002-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, modified, diff --git a/ChangeLog b/docs/oldlogs/ChangeLog.210 index 42f7c34ba..eea4d27b3 100644 --- a/ChangeLog +++ b/docs/oldlogs/ChangeLog.210 @@ -1,3 +1,2752 @@ +2021-07-18 Werner Lemberg <wl@gnu.org> + + * Version 2.11.0 released. + ========================== + + + Tag sources with `VER-2-11-0'. + + * docs/VERSION.TXT: Add entry for version 2.11.0. + * docs/CHANGES: Updated. + + * README, src/base/ftver.rc, builds/windows/vc2010/index.html, + builds/windows/visualc/index.html, + builds/windows/visualce/index.html, + builds/wince/vc2005-ce/index.html, + builds/wince/vc2008-ce/index.html, docs/freetype-config.1: + s/2.10.4/2.11.0/, s/2104/2110/. + + * include/freetype/freetype.h (FREETYPE_MINOR): Set to 11. + (FREETYPE_PATCH): Set to 0. + + * builds/unix/configure.raw (version_info): Set to 24:0:18. + * CMakeLists.txt (VERSION_MINOR): Set to 11. + (VERSION_PATCH): Set to 0. + + * builds/toplevel.mk (dist): Ignore more git-related files. + +2021-07-17 David Turner <david@freetype.org> + + * src/smooth/ftgrays.c: Fix compilation if `FT_LONG64` is undefined. + + The code assumed that if `__SSE2__` is defined, then 64-bit integer + types are available. This is not the case apparently for certain + multilib compiler targets like 'x86_32.x86' used by Gentoo. + + This patch fixes the issue by disabling the special code path when + 64-bit integer types are not available. + + Fixes #1071. + +2021-07-16 Alex Richardson <Alexander.Richardson@cl.cam.ac.uk> + + [tests] Allow arbitrary build directories. + + * tests/issue-1063/main.c (main): I am building with a build + directory that is not directly inside the source tree, so the path + `../tests/data/As.I.Lay.Dying.ttf` does not resolve to the test + input file. This change passes the test data directory as an + environment variable to allow arbitrary build directories. + + * tests/meson.build: Updated. + +2021-07-16 Alex Richardson <Alexander.Richardson@cl.cam.ac.uk> + + * tests/issue-1063/main.c (main): Fix uninitialized variable. + + I tried running `meson test` but the test just crashed and gdb + reported that the face argument to `FT_Get_Char_Index` was nonsense. + With this change the test prints 'Could not open file: ' as it + should. + +2021-07-16 Werner Lemberg <wl@gnu.org> + + [smooth] Minor fixes. + + * src/smooth/ftgrays.c (gray_render_conic): Move variable and + structure declarations to beginning of function. Inspite of C99 + compliance we still do this for the sake of backward compatibility. + This also avoids a shadowing declaration of `count`. + (gray_convert_glyph_inner): Fix typo. + +2021-07-15 Ben Wagner <bungeman@chromium.org> + + * src/smooth/ftgrays.c: Guard inclusion of `emmintrin.h`. + + Guard inclusion of `emmintrin.h` with `#ifdef __SSE2__`. The gcc + version of this header, `xmmintrin.h`, and `mmintrin.h` check that + the appropriate defines are set before defining anything (are + internally guarded). However, the clang versions of these includes + are not internally guarded. As a result of this, externally guard + the inclusion of these headers. + +2021-07-15 David Turner <david@freetype.org> + + [smooth] Implement Bézier quadratic arc flattening with DDA. + + Benchmarking shows that this provides a very slighty performance + boost when rendering fonts with lots of quadratic Bézier arcs, + compared to the recursive arc splitting, but only when SSE2 is + available, or on 64-bit CPUs. + + On a 2017 Core i5-7300U CPU on Linux/x86_64: + + ftbench -p -s10 -t5 -cb DroidSansFallbackFull.ttf + + Before: 4.033 us/op (best of 5 runs for all numbers) + After: 3.876 us/op + + ftbench -p -s60 -t5 -cb DroidSansFallbackFull.ttf + + Before: 13.467 us/op + After: 13.385 us/op + + * src/smooth/ftgrays.c (gray_render_conic): New implementation + based on DDA and optionally SSE2. + +2021-07-15 David Turner <david@freetype.org> + + [smooth] Minor speedup to smooth rasterizer. + + This speeds up the smooth rasterizer by avoiding conditional + branches in the hot path. + + - Define a fixed 'null cell', which will be pointed to whenever the + current cell is outside of the current target region. This avoids + a `ras.cell != NULL` check in the `FT_INTEGRATE` macro. + + - Also use the null cell as a sentinel at the end of all `ycells` + linked-lists, by setting its x coordinate to `INT_MAX`. This + avoids a `if (!cell)` check in `gray_set_cell` as well. + + - Slightly change the worker struct fields to perform a little less + operations during rendering. + + Example results (on a 2013 Corei5-3337U CPU) + + out/ftbench -p -s10 -t5 -bc DroidSansFallbackFull.ttf + + Before: 5.472 us/op + After: 5.275 us/op + + out/ftbench -p -s60 -t5 -bc DroidSansFallbackFull.ttf + + Before: 17.988 us/op + After: 17.389 us/op + + * src/smooth/ftgrays.c (grat_TWorker): Replace `num_cells` field with + `cell_free` and `cell_limit`. + (NULL_CELL_PTR, CELL_MAX_X_VALUE, CELL_IS_NULL): New macros. + (gray_dump_cells, gray_set_cell, gray_sweep, gray_sweep_direct, + gray_convert_glyph_inner, gray_convert_glyph): Updated. + +2021-07-15 David Turner <david@freetype.org> + + [tests] Rewrite download script in Python3. + + This commit replaces the bash script with a Python script that does + the same work, plus avoiding to download anything if the files are + already installed with the right content. + + We now use the first 8 bytes of each file's sha256 hash for the + digest. + + * tests/scripts/download-test-fonts.sh: Removed. + * tests/scripts/download-test-fonts.py: New script. + * tests/README.md: Updated. + +2021-07-15 Alex Richardson <Alexander.Richardson@cl.cam.ac.uk> + + Support architectures where `long` is smaller than pointers. + + I am currently trying to compile FreeType for CHERI-extended ISAs + (CHERI-RISC-V and Arm's Morello), but I am getting compiler warnings + from the `FT_UINT_TO_POINTER` macro. When compiling with the CHERI + Clang compiler, not using `uinptr_t` for casts between integers an + pointers results in the following `-Werror` build failures: + + ``` + In file included from .../src/truetype/truetype.c:22: + .../src/truetype/ttgload.c:1925:22: error: + cast from provenance-free integer type to pointer type will + give pointer that can not be dereferenced + [-Werror,-Wcheri-capability-misuse] + node->data = FT_UINT_TO_POINTER( glyph_index ); + ^ + .../include/freetype/internal/compiler-macros.h:79:34: note: + expanded from macro 'FT_UINT_TO_POINTER' + ``` + + * include/freetype/internal/compiler-macros.h (FT_UINT_TO_POINTER): + The ISO C standard compliant fix for this would be to use + `uintptr_t` from `stdint.h`, but I am not sure if this is supported + by the minimum compiler version. Therefore, use the + compiler-defined `__UINTPTR_TYPE__` macro (supported in GCC 4.6+ and + Clang since about 3.0) before checking for `_WIN64` and falling back + to `unsigned long`. + +2021-07-13 Oleg Oshmyan <chortos@inbox.lv> + + [base] Fix `FT_Open_Face`'s handling of user-supplied streams. + + This was already true (though undocumented) most of the time, but + not if `FT_NEW` inside `FT_Stream_New` failed or if the + `FT_OPEN_XXX` flags were bad. + + Normally, `FT_Open_Face` calls `FT_Stream_New`, which returns the + user-supplied stream unchanged, and in case of any subsequent error + in `FT_Open_Face`, the stream is closed via `FT_Stream_Free`. + + Up to now, however, `FT_Stream_New` allocates a new stream even if + it is already given one by the user. If this allocation fails, the + user-supplied stream is not returned to `FT_Open_Face` and never + closed. Moreover, the user cannot detect this situation: all they + see is that `FT_Open_Face` returns `FT_Err_Out_Of_Memory`, but that + can also happen after a different allocation fails within the main + body of `FT_Open_Face`, when the user's stream has already been + closed by `FT_Open_Face`. It is plausible that the user stream's + `close` method frees memory allocated for the stream object itself, + so the user cannot defensively free it upon `FT_Open_Face` failure + lest it ends up doubly freed. All in all, this ends up leaking the + memory/resources used by user's stream. + + Furthermore, `FT_Stream_New` simply returns an error if the + `FT_OPEN_XXX` flags are unsupported, which can mean either an + invalid combination of flags or a perfectly innocent + `FT_OPEN_STREAM` on a FreeType build that lacks stream support. + With this patch, the user-supplied stream is closed even in these + cases, so the user can be sure that if `FT_Open_Face` failed, the + stream is definitely closed. + + * src/base/ftobjs.c (FT_Stream_New): Don't allocate a buffer + unnecessarily. + Move error-handling code to make the control flow more obvious. + Close user-supplied stream if the flags are unsupported. + `FT_Stream_Open` always sets `pathname.pointer`, so remove the + redundant (re)assignment. None of the `FT_Stream_Open...` functions + uses `stream->memory`, so keep just one assignment at the end, + shared among all possible control flow paths. + ('Unsupported flags' that may need a stream closure can be either an + invalid combination of multiple `FT_OPEN_XXX` mode flags or a clean + `FT_OPEN_STREAM` flag on a FreeType build that lacks stream + support.) + +2021-07-13 Oleg Oshmyan <chortos@inbox.lv> + + [base] Reject combinations of incompatible `FT_OPEN_XXX` flags. + + The three modes are mutually exclusive, and the documentation of the + `FT_OPEN_XXX` constants notes this. However, there was no check to + validate this in the code, and the documentation on `FT_Open_Args` + claimed that the corresponding bits were checked in a well-defined + order, implying it was valid (if useless) to specify more than one. + Ironically, this documented order did not agree with the actual + code, so it could not be relied upon; hopefully, nobody did this and + nobody will be hurt by the new validation. + + Even if multiple mode bits were allowed, they could cause memory + leaks: if both `FT_OPEN_STREAM` and `stream` are set along with + either `FT_OPEN_MEMORY` or `FT_OPEN_PATHNAME`, then `FT_Stream_New` + allocated a new stream but `FT_Open_Face` marked it as an 'external' + stream, so the stream object was never released. + + * src/base/ftobjs.c (FT_Stream_New): Reject incompatible + `FT_OPEN_XXX` flags. + +2021-07-12 Alex Richardson <Alexander.Richardson@cl.cam.ac.uk> + + * meson.build: Fix build for other UNIX systems (e.g., FreeBSD). + + Without this change the build of `unix/ftsystem.c` fails because the + `ftconfig.h` header that defines macros such as `HAVE_UNISTD_H` and + `HAVE_FCNTL_H` is only being generated for Linux, macOS, and Cygwin + systems: + + ``` + .../builds/unix/ftsystem.c:258:32: error: + use of undeclared identifier 'O_RDONLY' + file = open( filepathname, O_RDONLY ); + ``` + + Instead of hardcoding a list of operating systems for this check, + update the logic that decides whether to build the file and set a + boolean flag that can be checked instead. + +2021-07-12 Werner Lemberg <wl@gnu.org> + + [autofit] More clean-ups. + + * src/autofit/afhints.h (AF_GlyphHintsRec): Remove the no longer + needed fields `xmin_delta` and `xmax_delta`. + + * src/autofit/afhints.c (af_glyph_hints_reload), + src/autofit/afloader.c (af_loader_load_glyph): Updated. + +2021-07-12 Werner Lemberg <wl@gnu.org> + + Small clean-ups for the last few commits. + + * include/freetype/fttrace.h (afwarp): Removed. + +2021-07-12 David Turner <david@freetype.org> + + Remove obsolete `AF_Angle` type and related sources. + + * src/autofit/afangles.c: File removed. Functions related to + sorting moved to... + * src/autofit/afhints.c (af_sort_pos, af_sort_and_quantize_widths): + This file. + * src/autofit/afangles.h: File removed. + * src/autofit/aftypes.h: Updated. + * src/autofit/autofit.c: Updated. + + * src/autofit/rules.mk (AUTOF_DRV_SRC): Updated. + +2021-07-12 David Turner <david@freetype.org> + + Remove experimental auto-hinting 'warp' mode. + + This feature was always experimental, and probably never worked + properly. This patch completely removes it from the source code, + except for a documentation block describing it for historical + purposes. + + * devel/ftoption.h, include/freetype/config/ftoption.h: Remove + `AF_CONFIG_OPTION_USE_WARPER`. + + * include/freetype/ftdriver.h: Document 'warping' property as + obsolete. + + * src/autofit/afwarp.c, src/autofit/afwarp.h: Files removed. + * src/autofit/*: Remove any code related to warp mode. + +2021-07-12 David Turner <david@freetype.org> + + Remove experimental 'Latin2' writing system (`FT_OPTION_AUTOFIT2`). + + This code has always been experimental and was never compiled anyway + (`FT_OPTION_AUTOFIT2` does not appear in `ftoption.h` or even any of + our build files). + + * include/freetype/internal/fttrace.h (aflatin2): Removed. + * src/autofit/aflatin2.h, src/autofit/aflatin2.c: Files removed. + * src/autofit/afloader.c: Remove undocumented hook to activate + Latin2 system. + * src/autofit/afstyles.h: Remove `ltn2_dflt` style definition. + * src/autofit/afwrtsys.h: Remove `LATIN2` writing system definition. + * src/autofit/autofit.c: Updated. + +2021-07-05 Werner Lemberg <wl@gnu.org> + + * src/base/ftlcdfil.c (FT_Library_SetLcdGeometry): Fix argument. + + Reported by Hin-Tak. + +2021-07-03 Werner Lemberg <wl@gnu.org> + + * meson_options.txt: Sort alphabetically; no final full stops. + +2021-07-01 Ben Wagner <bungeman@chromium.org> + + * src/truetype/ttgxvar.c (tt_set_mm_blend): Test `coords`. + + It is undefined behavior to pass `NULL` to `memcpy`. `coords' is + passed to `memcpy` but `TT_Get_MM_Blend` and `TT_Get_Var_Design` + explictly call `tt_set_mm_blend` with `coords` as `NULL`. In + addition, `TT_Set_MM_Blend` has a similar possible issue. + +2021-06-30 Dominik Röttsches <drott@chromium.org> + + [sfnt] Support PaintScale in 'COLR' v1 parsing. + + * include/freetype/ftcolor.h (FT_PaintFormat): Renumber values, add + `FT_COLR_PAINTFORMAT_SCALE`. + (FT_PaintScale): New structure to represent 'PaintScale*' tables. + (FT_COLR_Paint): Updated. + + * src/sfnt/ttcolr.c (FT_PaintFormat_Internal): New enumeration. + (read_paint): Parse 'PaintScale' and friends. + +2021-06-30 Dominik Röttsches <drott@chromium.org> + + [sfnt] Handle fonts without layer list in 'COLR' v1. + + 'COLR' v1 fonts do not necessarily need to have a layer list; for + this reason, 'fontTools' recently started generating fonts in a way + that drops the layer list if there are no layers in it. This + results in the layer list offset becoming zero, which FreeType + treated as an invalid table. Fix that and handle the case for layer + list offset being 0. This slightly changes how we need to calculate + the starting offset for paints. + + * src/sfnt/ttcolr.c (tt_face_load_colr): Handle case of layer list + offset being zero without outright rejecting table. + +2021-06-30 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/raster/ftraster.c (Render_Single_Pass): Simplify `band_stack'. + +2021-06-29 Alexei Podtelezhnikov <apodtele@gmail.com> + + [raster] Do not skip the second pass without dropout control. + + The second pass also fixes horizontal lines through the pixel centers. + + * src/raster/ftraster.c (black_TWorker): Do not use `second_pass'. + (Render_Glyph): Skip the second pass only with the appropriate flag. + +2021-06-29 Alexei Podtelezhnikov <apodtele@gmail.com> + + [raster] Handle sub-band stack locally. + + * src/raster/ftraster.c (black_TWorker): Move `band_stack' from here.. + (Render_Single_Pass): ... to here and accept limit arguments. + (Render_Glyph): Updated. + +2021-06-25 Anurag Thakur <anuthadev@gmail.com> + + [CI] Introduce linux CI and refactor job names. + + * .gitlab-ci.yml: Added jobs for building freetype on linux. + +2021-06-28 Alexei Podtelezhnikov <apodtele@gmail.com> + + [raster] Handle Bézier stack locally. + + * src/raster/ftraster.c (black_TWorker): Move `arcs' from here... + (Conic_To, Cubic_To): ... to here to tighten their scope. + (Bezier_Up, Bezier_Down): ... Take the current `arc' argument. + +2021-06-28 Dominik Röttsches <drott@chromium.org> + + [sfnt] Improve paint limit checks + + Paint tables can appear before the `base_glyphs_v1` offset if the + font is produced with the layer list before the base glyph list. In + this case paint tables can occur after the layer list but before the + base glyph list. Checks in the 'COLR' v1 code were rejecting fonts + with this layout. Improve these checks by calculating a minimum + offset after which paint tables can occur and use that in safety + checks. + + * src/sfnt/ttcolr.c (Colr, tt_face_load_colr): Declare + `paint_start_v1` and calculate that as the minimum of the end of + layer list and base glyph list. + (get_child_table_pointer, read_paint, tt_face_get_paint_layers): + Use that in safety checks. + +2021-06-28 Alexei Podtelezhnikov <apodtele@gmail.com> + + [raster] Clean up vertical sweep. + + * src/raster/ftraster.c (black_TWorker): Replace the current line + offset with the pointer and drop the increment. + (Function_Sweep_Init): Take values as arguments instead of pointers. + (Vertical_Sweep_*, Horizontal_Sweep_Init, Draw_Sweep): Updated. + +2021-06-25 Alexei Podtelezhnikov <apodtele@gmail.com> + + [raster] Make `band_top' local variable. + + * src/raster/ftraster.c (black_TWorker): Move `band_top' from here... + (Render_Single_Pass): ... to here, and refactor. + (Render_Glyph): Updated. + +2021-06-25 Alexei Podtelezhnikov <apodtele@gmail.com> + + [raster] Adjust sub-band bisecting limits. + + We can bisect a band until it is just a single scan line. This might + be slow and cause time-outs but if we need to impose limits it should + be elsewhere. + + * src/raster/ftraster.c (Render_Single_Pass): Tweak sub-banding. + +2021-06-25 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/raster/ftraster.c (Render_Single_Pass): Remove dead code. + +2021-06-25 Werner Lemberg <wl@gnu.org> + + [base] Add trace level to logging output. + + Some practical debugging work has shown that displaying level X of + an `FT_TRACEX` macro in the output of `FT2_DEBUG="... -v"` would be + very helpful to find out which trace level should be selected. As + an example, we now get output like + + ``` + [ttobjs:2] TTF driver + [ttobjs:2] SFNT driver + [sfobjs:2] not a font using the SFNT container format + [t1objs:2] Type 1 driver + [stream:7] FT_Stream_EnterFrame: 14 bytes + ``` + + * include/freetype/internal/ftdebug.h (FT_LOGGING_TAGX): New macro. + (FT_LOG): Use it to add the trace level to the logging tag. + + * include/freetype/internal/fttrace.h (FT_MAX_TRACE_LEVEL_LENGTH): + Adjust. + + * docs/DEBUG: Updated. + +2021-06-24 Alexei Podtelezhnikov <apodtele@gmail.com> + + [smooth, raster] Fix up and align error codes. + + FT_Render_Glyph picked up FAILURE or 1 returned from the raster + function, which became a confusing error code. Instead, return + Raster_Overflow in the unlikely event that banding does not help or + another meaningful error. + + * src/smooth/ftgrays.c (gray_convert_glyph_inner, gray_convert_glyph): + Use Raster_Overflow when the rendering pool is exhausted and return it + if banding does not help. + (gray_raster_render): Use Smooth_Err_Ok. + + * src/raster/ftraster.c (Render_Single_Pass): Return Raster_Overflow + if banding does not help or another error code. + +2021-06-23 Alexei Podtelezhnikov <apodtele@gmail.com> + + [smooth, raster] Remove synonymous error macros. + + * src/smooth/ftgays.c [STANDALONE_]: s/ErrRaster_/Smooth_Err_/. + (gray_convert_glyph_inner): Updated accordingly. + + * src/raster/ftraster.c [STANDALONE_]: Do not abbreviate error macros. + (New_Profile, End_Profile, Insert_Y_Turn, Line_Up, Bezier_Up, + Decompose_Curve, Draw_Sweep, Render_Single_Pass, ft_black_render): + Updated accordingly. + +2021-06-22 Dominik Röttsches <drott@chromium.org> + + [sfnt] s/PaintTransformed/PaintTransform/, s/transformed/transform/. + + * include/freetype/ftcolor.h (FT_PaintTransformed, FT_PaintFormat, + FT_COLR_Paint): Do it to make it harmonize with other names such as + 'PaintTranslate'. + + * src/sfnt/ttcolr.c (read_paint, tt_face_get_paint): Ditto. + +2021-06-22 Dominik Röttsches <drott@chromium.org> + + Move 'COLR' API to `ftcolor.h`. + + * include/freetype/freetype.h: Cut section layer managament + containing 'COLR' v0 and v1 API and move it to `ftcolor.h` as + requested by Werner on freetype-devel. + * include/freetype/ftcolor.h: Paste that section. + +2021-06-19 Werner Lemberg <david@freetype.org> + + [truetype] Fix integer overflow. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35312 + + * src/truetype/ttinterp.c (Ins_JMPR): Use `ADD_LONG`. + +2021-06-19 Werner Lemberg <david@freetype.org> + + [autofit] Prevent hinting if there are too many segments. + + This speeds up handling of broken glyphs. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35309 + + * src/autofit/aflatin.c (af_latin_hints_compute_segments): Implement + it. + +2021-06-18 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/sdf/ftsdfrend.c (ft_(b)sdf_render): Do not FT_ERROR routinely. + +2021-06-16 David Turner <david@freetype.org> + + [autofit] Fix return value of `FT_Load_Glyph`. + + * src/autofit/afglobal.c (af_face_globals_get_metrics): The issue is + that `style_metrics_init` sometimes returns -1 without clearing + `error`. While looping to `Again`, the next operation is + successful, but -1 is still returned by the function. The fix is to + set `error` to 0 appropriately. + + Fixes #1063. + +2021-06-15 David Turner <david@freetype.org> + + [meson] Add first regression test to FreeType. + + * tests/README.md: New file that explains how to build and run the + tests with the Meson build. + + * tests/scripts/download-test-fonts.sh: New bash script to download + test font files to the `tests/data` folder. + + * meson.build, meson_options.txt: Add 'tests' option to enable + building and running the test programs (disabled by default). + + * tests/meson.build: New file. + + * tests/issue-1063/main.c: Simple regression test to exhibit issue + 1063. + + * .gitignore: Ignore the content of the `tests/data` folder for + now. + +2021-06-12 Alexei Podtelezhnikov <apodtele@gmail.com> + + [type42] Fix new memory leak. + + We need to inverse inheritance of FT_GlyphSlot_Internal so that we + have a chance to free the rendered bitmap from the parent slot. + + * src/type42/t42objs.c (T42_GlyphSlot_Init): Remove the internal parts + of the child `ttslot' and replace it with the parent structure. + (T42_GlyphSlot_Done): Updated accordingly. + +2021-06-12 Werner Lemberg <wl@gnu.org> + + [psaux] Fix another assertion. + + * src/psaux/psintrp.c (cf2_interpT2CharString) + <cf2_escCALLOTHERSUBR>: Convert assertion into error, since the + problem can happen with invalid user input. + + Test case is file + + fuzzing/corpora/legacy/oss-fuzz/5754332360212480-unknown-read + + in the `freetype2-testing` repository. + +2021-06-12 Werner Lemberg <wl@gnu.org> + + [psaux] Fix assertions. + + * src/psaux/pshints.c (cf2_hintmap_adjustHints): Check for overflow + before emitting an assertion error. + + Test case is file + + fuzzing/corpora/legacy/oss-fuzz/4594115297673216-integer-overflow + + in the `freetype2-testing` repository. + +2021-06-09 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/truetype/ttinterp.c (TT_RunIns): Optimize tracing. + +2021-06-09 Alexei Podtelezhnikov <apodtele@gmail.com> + + [sdf] Fix SDF positioning. + + * src/sdf/ftsdfrend.c (ft_sdf_render, ft_bsdf_render): Add padding to + `bitmap_top' and `bitmap_left'. + + * sdf/sdf/ftsdf.c (sdf_generate_with_overlaps): Fix VC++ warning. + +2021-06-08 Werner Lemberg <wl@gnu.org> + + Fix 'devel' build for 'COLR' v1. + + * devel/ftoption.h: Synchronize with + `include/freetype/config/ftoption.h`. + +2021-06-08 Werner Lemberg <wl@gnu.org> + + [sfnt] Sanitize cmap4 table better. + + Fixes #1062. + + * src/sfnt/ttcmap.c (tt_cmap4_validate): Handle a too-small value of + `length` gracefully. + +2021-06-08 Dominik Röttsches <drott@chromium.org> + + [sfnt] Pointer validity check when reading 'COLR' v1 layers + + * src/sfnt/ttcolr.c (tt_face_get_paint_layers): In addition to the + existing sanity checks, ensure that the pointer to the layer to be + read is within the 'COLR' v1 table. + +2021-06-08 Werner Lemberg <wl@gnu.org> + + * src/sdf/ftsdfcommon.c: Fix inclusion of header files. + +2021-06-08 Werner Lemberg <wl@gnu.org> + + [sdf] Make `make multi` work. + + * src/sdf/ftsdf.c: Include `ftbitmap.h`. + + * src/sdf/ftsdfcommon.h: Move function bodies to `ftsdfcommon.c`. + Include `ftobjs.h` to get definitions of `FT_LOCAL` and friends. + + * src/sdf/ftsdfcommon.c: New file. + + * src/sdf/rules.mk, src/sdf/sdf.c: Updated. + +2021-06-08 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Use 8 bits for final SDF output instead of 16bits. + + Since 8-bits is enough to represent SDF data we no longer require + 16-bits for this purpose. Also, we now normalize the output data + to use the entire 8-bit range efficiently. For example: if we use + 3.5 format with a spread of 1 we basically only use the starting + 5-bits. By normalizing we can use the entire 8-bit range. + + * include/freetype/freetype.h (FT_Render_Mode): Updated description + for `FT_RENDER_MODE_SDF` regarding this change. + + * include/freetype/ftimage.h (FT_Pixel_Mode): Removed + `FT_PIXEL_MODE_GRAY16` since no longer required. + + * include/freetype/fttypes.h (FT_F6Dot10): Removed since no longer + required. + + * src/sdf/ftsdfrend.c (ft_sdf_render, ft_bsdf_render): Allocate 8-bit + bitmap instead of 16-bit buffer. + + * src/sdf/ftsdfcommon.h (map_fixed_to_sdf): Added function to convert + 16.16 distance value to our desired format. + + * src/sdf/ftsdf.c (sdf_generate_with_overlaps, + sdf_generate_bounding_box): Use the new `map_fixed_to_sdf` function + and also use 8-bit output buffer. + + * src/sdf/ftbsdf.c (finalize_sdf): Output to a 8-bit buffer instead + of 16-bit buffer. + +2021-06-02 Ben Wagner <bungeman@chromium.org> + Werner Lemberg <wl@gnu.org> + + [sfnt] Fix fallout from 2021-05-29 change. + + * src/sfnt/ttcolr.c (find_base_glyph_record, + find_base_glyph_v1_record): Adjust binary search. + + Needs to be updated with change to unsigned. + +2021-06-02 Werner Lemberg <wl@gnu.org> + + * src/autofit/aflatin.c (af_latin_metrics_scale_dim): Fix tracing. + + Problem reported by Alexei. + +2021-06-02 Werner Lemberg <wl@gnu.org> + + [psaux] Fix MSVC compiler warnings. + + * src/psaux/afmparse.c (afm_parse_track_kern, afm_parse_kern_pairs): + Add cast. + +2021-05-29 Werner Lemberg <wl@gnu.org> + + Fix compilation errors and (some) warnings for clang++. + + * src/autofit/afmodule.c (AF_GlyphHintsRec): Make it static. + + * src/cache/ftcache.c (FTC_Cache_NewNode), src/cache/ftcsbits.c + (ftc_snode_compare): Remove semicolon. + + * src/cff/cffparse.c (cff_parser_run): Add `break` statement. + + * src/cid/cidload.c (cid_hex_to_binary): Add cast. + + * src/sdf/ftbsdf.c (CHECK_NEIGHBOR): Use `do {} while(0)` loop. + (bsdf_init_distance_map, finalize_sdf, bsdf_raster_render): Add + casts. + * src/sdf/ftsdf.c (sdf_generate_bounding_box, + sdf_generate_with_overlaps): Ditto. + * src/sdf/ftsdfcommon.h (square_root): Ditto. + * src/sdf/ftsdfrend.c (sdf_property_get, ft_sdf_render, + ft_bsdf_render): Ditto. + + * src/sfnt/ttcolr.c (find_base_glyph_record, + find_base_glyph_v1_record): Fix variable signedness. + (read_color_line): Add cast. + (read_paint): Add casts. + Fix signedness issue. + (tt_face_get_colorline_stops) Fix signedness issues. + + * src/sfnt/ttpost.c (load_format_20): Add casts. + + * src/truetype/ttsubpix.c (TWEAK_RULES, TWEAK_RULES_EXCEPTIONS): + Remove final semicolons. + +2021-05-29 Werner Lemberg <wl@gnu.org> + + [build] Allow overriding of `ANSIFLAGS` for GNU make build. + + * builds/*: Implement it. + +2021-05-27 Alexei Podtelezhnikov <apodtele@gmail.com> + + [type42] Fix auto-hinting. + + The autohinter could not access the base (unscaled) outline in the + child TrueType glyph slot. We now share the internal parts between + the parent and child glyph slots. Fixes #1057. + + * src/type42/t42objs.c (T42_GlyphSlot_Init): Remove the internal parts + of `T42_GlyphSlot' and replace it with the child TrueType structure. + (T42_GlyphSlot_Done): Updated accordingly. + +2021-05-25 Werner Lemberg <wl@gnu.org> + + [psaux] Guard and trace AFM kern data allocation. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31543 + + * include/freetype/internal/fttrace.h: Add 'afmparse' trace + component. + + * src/psaux/afmparse.c (FT_COMPONENT): Define. + (afm_parse_track_kern, afm_parse_kern_pairs): Protect against + allocations bombs. + Add tracing. + (afm_parse_kern_data): Don't allow multiple kern data sections. + +2021-05-23 Alexei Podtelezhnikov <apodtele@gmail.com> + + * meson.build (ft2_public_headers): Add missing `ftcid.h'. + + Fixes #1058. + +2021-05-20 Alexei Podtelezhnikov <apodtele@gmail.com> + + [type42] Avoid some memory zeroing. + + * src/type42/t42objs.c (T42_Open_Face): Tweak allocation macro. + * src/type42/t42parse.c (t42_parse_sfnts): Ditto. + +2021-05-19 Nikolaus Waxweiler <madigens@gmail.com> + + [CMake] Update dependency finders. + + 1. Fixes CMake using any found HarfBuzz version lower than the minimum + required. This is based on HALX99's merge request at + https://gitlab.freedesktop.org/freetype/freetype/-/merge_requests/31 + 2. Update FindHarfBuzz.cmake from + https://github.com/WebKit/WebKit/blob/1ce32454/Source/cmake/FindHarfBuzz.cmake + and guard post-CMake-3.1 features to keep the minimum version unchanged + 3. Update FindBrotliDec.cmake to stop the warnings, based on what + https://github.com/google/woff2/blob/a0d0ed7d/cmake/FindBrotliDec.cmake + is doing + + * CMakeLists.txt, builds/cmake/FindHarfBuzz.cmake: Implement 1 and 2. + * builds/cmake/FindBrotliDec.cmake: Implement 3. + +2021-05-19 Ben Wagner <bungeman@chromium.org> + + [gzip] Use exact type for `ft_gzip_alloc` and `ft_gzip_free`. + + While a function pointer may be cast to another function pointer + type, it is required to cast the function pointer back to the + original function pointer type before calling it. If a parameter is + a pointer the exact pointer type is required. Using a pointer to a + different underlying type is technically undefined behavior. The + wrapper functions `ft_gzip_alloc` and `ft_gzip_free` took + `FT_Memory` (a `FT_MemoryRec_*`) instead of `voidpf` (`void*`), so + when gzip calls these callbacks through `alloc_func` or `free_func` + it invokes undefined behavior. On most platforms this works out as + expected, but newer undefined behavior detectors and targets like + wasm can detect this and will produce an error. + + * src/gzip/ftgzip.c (ft_gzip_alloc, ft_gzip_free): Update signatures + to exactly match `alloc_func` and `free_func`, respectively. + Internally, cast the `void*` opaque pointer to `FT_Memory`. + +2021-05-18 Alexei Podtelezhnikov <apodtele@gmail.com> + + Prioritize the anti-aliasing renderer module. + + * modules.cfg: Reorder the renderers. + * include/freetype/config/ftmodule.h: Ditto. + +2021-05-16 Alexei Podtelezhnikov <apodtele@gmail.com> + + [sfnt] Additional guards on the POST table. + + Fixes timeout (#1055) analyzed by Ben Wagner, reported as + + https://crbug.com/1194092 + + * src/sfnt/ttload.c (tt_face_load_post): Check POST format. + * src/sfnt/sfobjs.c (sfnt_load_face): Synthesize the missing unicode + charmap only if the glyph names exist. + * src/psnames/psmodule.c (ps_unicode_value): Short cut ".notdef" and + ".null". + +2021-05-13 Daniel McArdle <dmcardle@chromium.org> + + [psaux] Use doubling allocation strategy for CF2_ArrStack. + + Fixes timeout reported as + + https://crbug.com/1206181 + + * src/psaux/psarrst.c (cf2_arrstack_{push,init}): Implement it. + * src/psaux/psarrst.h (CF2_ArrStackiRec): Drop `chunk'. + +2021-05-12 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/smooth/ftgrays.c (FT_MAX_GRAY_SPANS): Increase from 10 to 16. + + Ten was barely enough for two slanted stems. Sixteen can actually fit + a bit more complicated scanlines. + +2021-05-11 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/smooth/ftgrays.c (FT_GRAY_SET): Adjust for better code. + +2021-05-11 Alexei Podtelezhnikov <apodtele@gmail.com> + + [smooth] Faster bitmap sweeping. + + Selecting the fill rule or checking the direct mode each time we call + `gray_hline' is sub-optimal. This effectively splits the direct mode + into a separate code path while inlining `gray_hline' and saving 5-7% + of rendering time. + + * src/smooth/ftgrays.c (gray_hline): Eliminated in favor of... + (FT_FILL_RULE, FT_GRAY_SET): ... these new macros... + (gray_sweep): ... inlined here. + (gray_sweep_direct): New function that handles the direct span buffer. + (gray_TWorker): Remove the span buffer. + (gray_raster_render, gray_convert_glyph): Updated. + +2021-05-10 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/smooth/ftgrays.c (gray_hline): Simplify even-odd computations. + + It is too bad the even-odd rule is not used much. + +2021-05-07 Alexei Podtelezhnikov <apodtele@gmail.com> + + [type1] Avoid MM memory zeroing. + + * src/type1/t1load.c (t1_allocate_blend, parse_blend_design_map): + Tweak allocation macros. + * src/type1/t1objs.c (T1_Face_Done): Minor. + +2021-05-07 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/bdf/bdflib.c (_bdf_list_ensure): Tweak allocation macro. + +2021-05-06 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/psaux/psobjs.c (ps_parser_load_field): Tweak allocation macro. + +2021-05-06 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/sfnt/sfobjs.c (sfnt_load_face): Tweak allocation macro. + +2021-05-06 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/cid/cidload.c (cid_read_subrs): Tweak allocation macro. + +2021-05-06 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/base/ftrfork.c (FT_Raccess_Get_DataOffsets): Tweak allocation. + +2021-05-05 Alexei Podtelezhnikov <apodtele@gmail.com> + + [cff,psaux] Avoid memory zeroing (contd.). + + * src/cff/cffload.c (cff_blend_doBlend, cff_blend_build_vector): Tweak + allocation macros. + * src/psaux/psarrst.c (cf2_arrstack_setNumElements): Ditto. + * src/psaux/psstack.c (cf2_stack_init): Ditto. + +2021-05-04 Ben Wagner <bungeman@chromium.org> + + * src/cid/cidload.c (cid_hex_to_binary): Improve return value. + + Add argument to return the actual number of bytes that were decoded. + The actual number of bytes decoded can be quite variable depending + on the number of ignored 'whitespace' bytes or early termination + with `>`. + (cid_face_open): Updated to use this calculated value. This avoids + trusting `parser->binary_length` is always be correct and reading + uninitialized bits if fewer are actually decoded. + + First reported as + + https://crbug.com/1203240 + +2021-05-03 Alexei Podtelezhnikov <apodtele@gmail.com> + + [sfnt] Streamline POST format 2.0 handing. + + To reduce memory allocations, we read an entire Pascal-string buffer + and convert it to a C-string buffer. We also reject tables with + Postscript glyph names exceeding 63 bytes. + + * src/sfnt/ttpost.c (load_format20): Implement it. + (load_post_names): Check the minimal POST table size. + (load_format25, tt_face_free_ps_names): Updated accordingly. + +2021-05-02 Alexei Podtelezhnikov <apodtele@gmail.com> + + [bdf,pcf] Avoid memory zeroing (contd.). + + * src/bdf/bdflib.c (bdf_create_property, _bdf_add_comment, + _bdf_add_property, bdf_load_font): Tweak allocation macros. + * src/pcf/pcfread.c (pcf_get_properties, pcf_get_metrics): Ditto. + +2021-05-01 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/cid/cidload.c (cid_read_subrs): Tweak allocaton macro. + +2021-05-01 Alexei Podtelezhnikov <apodtele@gmail.com> + + [sfnt] Avoid some memory zeroing. + + * src/sfnt/sfobjs.c (sfnt_open_font, sfnt_init_face, + tt_name_ascii_from_{utf16,other}): Tweak allocaton macros. + * src/sfnt/ttload.c (tt_face_load_name): Ditto. + +2021-05-01 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/sfnt/ttpost.c (load_format_{20,25}): Tweak allocaton macros. + +2021-05-01 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/sfnt/pngshim.c (Load_SBit_Png): Tweak allocaton macro. + +2021-05-01 Alexei Podtelezhnikov <apodtele@gmail.com> + + [truetype] Avoid some memory zeroing. + + * src/truetype/ttinterp.c (Init_Context): Tweak allocation macro. + * src/truetype/ttpload.c (tt_face_load_cvt): Ditto. + +2021-05-01 Alexei Podtelezhnikov <apodtele@gmail.com> + + [woff2] Avoid some memory zeroing. + + * src/sfnt/sfwoff2.c (store_loca, woff2_open_font): Tweak macros. + +2021-04-30 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/gzip/ftgzip.c (ft_gzip_alloc): Zero out memory again. + +2021-04-27 Alexei Podtelezhnikov <apodtele@gmail.com> + + [lzw] Preserve decompression stack when relocating to heap. + + * src/lzw/ftzopen.c (ft_lzwstate_stack_grow): Copy stack when + relocating to heap. + +2021-04-27 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/cid/cidgload.c (cid_load_glyph): Restore the glyph_length check. + +2021-04-27 Werner Lemberg <wl@gnu.org> + + * src/psmodule.c (ps_unicodes_init): Ignore empty glyph names. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33637 + +2021-04-26 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/sfnt/sfobjs.c (sfnt_init_face): Revert macro change. + +2021-04-26 Alexei Podtelezhnikov <apodtele@gmail.com> + + [cff] Avoid some memory zeroing. + + * src/cff/cffparse.c (cff_parser_init): Tweak memory macro. + * src/cff/cffload.c (cff_index_load_offsets, cff_index_get_pointers, + cff_charset_load, cff_vstore_load): Ditto. + +2021-04-26 Alexei Podtelezhnikov <apodtele@gmail.com> + + [pfr] Avoid some memory zeroing. + + * src/pfr/pfrobjs.c (pfr_face_init) : Tweak memory macro. + * src/pfr/pfrload.c (pfr_extra_item_load_stem_snaps, + pfr_phy_font_load): Ditto. + +2021-04-26 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/winfonts/winfnt.c (FNT_Face_Init): Tweak memory macro. + +2021-04-26 Alexei Podtelezhnikov <apodtele@gmail.com> + + [psaux,psnames] Avoid some memory zeroing. + + * src/psaux/psstack.c (cf2_stack_init): Tweak memory macro. + * src/psnames/psmodule.c (ps_unicodes_init): Ditto. + +2021-04-25 Alexei Podtelezhnikov <apodtele@gmail.com> + + [base] Avoid some memory zeroing. + + * src/base/ftrfork.c (FT_Raccess_Get_DataOffsets): Use FT_QNEW_ARRAY. + * src/base/ftsnames.c (FT_Get_Sfnt_{Name,LangTag}): Ditto. + +2021-04-25 Alexei Podtelezhnikov <apodtele@gmail.com> + + [bdf,pcf] Avoid some memory zeroing. + + * src/pcf/pcfread.c (pcf_read_TOC, pcf_get_properties, pcf_load_font): + Tweak memory macros. + * src/bdf/bdfdrivr.c (BDF_Face_Init): Ditto. + * src/bdf/bdflib.c (_bdf_readstreami, bdf_create_property, + _bdf_parse_glyphs, _bdf_parse_start): Ditto. + (_bdf_add_property): Do not handle zero size. + +2021-04-25 Issam E. Maghni <issam.e.maghni@mailbox.org> + + * builds/meson/process_ftoption_h.py: Add LF at EOF. + + This fixes + + .../ftoption.h:1030:10: error: + no newline at end of file [-Werror,-Wnewline-eof] + + for the generated `ftoption.h` file. + +2021-04-24 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/cff/cffload.c (cff_index_get_pointers): s/FT_QALLOC/FT_ALLOC/. + +2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/base/ftobjs.c (Mac_Read_POST_Resource): s/FT_ALLOC/FT_QALLOC/. + * builds/mac/ftmac.c (FT_New_Face_From_SFNT, read_lwfn): Ditto. + +2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/sdf/ftsdf.c (sdf_{edge,contour,shape}_new): Use FT_QALLOC. + +2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com> + + [sfnt] s/FT_ALLOC/FT_QALLOC/ for initialized buffers. + + * src/sfnt/sfdriver.c (get_win_string, get_apple_string, + sfnt_get_var_ps_name): Do not zero out the buffer. + * src/sfnt/sfobjs.c (sfnt_init_face): Ditto. + * src/sfnt/sfwoff.c (woff_open_font): Ditto. + * src/sfnt/sfwoff2.c (woff2_open_font): Ditto. + +2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com> + + [cff,type1,type42] s/FT_ALLOC/FT_QALLOC/ for initialized buffers. + + * src/cff/cffload.c (cff_index_get_pointers, cff_index_get_name): + Do not zero out the buffer. + * src/cff/cffdrivr.c (cff_ps_get_font_info): Ditto. + * src/type1/t1load.c (parse_subrs, parse_charstrings, + parse_blend_axis_types): Ditto. + * src/type1/t1parse.c (T1_New_Parser, T1_Get_Private_Dict): Ditto. + * src/type42/t42parse.c (t42_parser_init): Ditto. + +2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com> + + [cid] s/FT_ALLOC/FT_QALLOC/ and clean up. + + * src/cid/cidgload.c (cid_load_glyph): Do not zero out the buffer. + * src/cid/cidload.c (cid_face_open, cid_read_subrs): Ditto. + +2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com> + + [pfr] s/FT_ALLOC/FT_QALLOC/ for initialized buffers. + + * src/pfr/pfrload.c (pfr_extra_item_load_font_id, pfr_aux_name_load): + Do not zero out the buffer. + +2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com> + + [bzip2,gzip] s/FT_ALLOC/FT_QALLOC/ for initialized buffers. + + * src/bzip2/ftbzip2.c (ft_bzip2_alloc): Do not zero out the buffer. + * src/gzip/ftgzip.c (ft_gzip_alloc, FT_Stream_OpenGzip): Ditto. + +2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com> + + [pcf,bdf,winfonts] s/FT_ALLOC/FT_QALLOC/ for initialized buffers. + + * src/pcf/pcfread.c (pcf_interpret_style): Do not zero out the buffer. + * src/bdf/bdfdrivr.c (bdf_interpret_style): Ditto. + * src/winfonts/winfnt.c (FNT_Face_Init, FNT_Load_Glyph): Ditto. + +2021-04-22 Alexei Podtelezhnikov <apodtele@gmail.com> + + [cache] Optimize SBit copying. + + * src/cache/ftcsbits.c (ftc_snode_load): Do not initialize the buffer. + (ftc_sbit_copy_bitmap): Accept zero size, s/FT_ALLOC/FT_QALLOC/. + +2021-04-22 Alexei Podtelezhnikov <apodtele@gmail.com> + + [gxvalid,otvalid] s/FT_ALLOC/FT_QALLOC/ for initialized buffers. + + * src/gxvalid/gxvmod.c (gxv_load_table): Do not zero out the buffer. + * src/otvalid/otvmod.c (otv_load_table): Ditto. + +2021-04-22 Alexei Podtelezhnikov <apodtele@gmail.com> + + [psaux] s/FT_ALLOC/FT_QALLOC/ for initialized buffers. + + * src/psaux/psobjs.c (ps_table_done, ps_parser_load_field): Do not + zero out the buffer. + +2021-04-22 Alexei Podtelezhnikov <apodtele@gmail.com> + + [base] s/FT_ALLOC/FT_QALLOC/ for initialized buffers. + + * src/base/ftobjs.c (open_face_PS_from_sfnt_stream, + Mac_Read_sfnt_Resource): Do not zero out the buffer. + * src/base/ftmac.c (FT_New_Face_From_SFNT, read_lwfn): Ditto. + * src/base/ftrfork.c (raccess_make_file_name, + raccess_guess_darwin_hfsplus, raccess_guess_darwin_newvfs): Ditto. + +2021-04-20 Alexei Podtelezhnikov <apodtele@gmail.com> + + [cache] Restore SBit copying for unowned (BDF) bitmaps. + + * src/cache/ftcsbits.c (ftc_sbit_copy_bitmap): Restore. + (ftc_snode_load): Check ownership and copy unowned bitmaps. + +2021-04-19 Dominik Röttsches <drott@chromium.org> + + [sfnt] Return in 'COLR' v1 when layer pointer outside table + + * src/sfnt/ttcolr.c (tt_face_get_paint_layers): Add missing return + when paint pointer outside table. + (read_paint): Add missing return when paint pointer outside table. + +2021-04-18 Alexei Podtelezhnikov <apodtele@gmail.com> + + [cache] Switch to lazy SBit setting. + + * src/cache/ftcsbits.c (ftc_sbit_copy_bitmap): Removed. + (ftc_snode_load): Take the bitmap ownership instead of copying. + +2021-04-16 Daniel Welty <@danielwelty> + + * src/cache/ftcsbits.c (ftc_snode_load): Properly handle short pitch. + +2021-04-16 Werner Lemberg <wl@gnu.org> + + * builds/unix/freetype2.m4: Fix help string formatting. + + The indented `dnl` macros inserted unwanted horizontal space. + + Problem reported by Ozkan Sezer <sezeroz@gmail.com>. + +2021-04-16 Dominik Röttsches <drott@chromium.org> + + [sfnt] Safeguard 'COLR' v1 layer extraction + + * src/sfnt/ttcolr.c (tt_face_get_paint_layers): Do not output + layer pointer to iterator if it is outside the 'COLR' table. + (read_paint): Do not attempt to read layers that are outside the + table. + +2021-04-02 Ben Wagner <bungeman@chromium.org> + + [base] Complete `ft_glyphslot_clear`. + + * src/base/ftobjs.c (ft_glyphslot_clear): This function is intended + to reset all the values of a glyph slot. However, it was not + resetting the values of the advances and `glyph_index`. Reset the + advances and `glyph_index` to zero. + +2021-04-02 Ben Wagner <bungeman@chromium.org> + + [truetype] Prevent glyph program state from persisting. + + `FDEF` instructions are specified as allowed only in 'prep' or + 'fpgm'. FreeType has attempted to prevent their use in the glyph + program, but they were still allowed in glyph programs if defined in + a function defined in 'prep' or 'fpgm' and called from the glyph + program. + + Similarly, `IDEF` instructions are specified not to be able to + modify any existing instruction. FreeType has attempted to prevent + their use in the glyph program, but they can still be used like + `FDEF`. + + This change stores the initial bytecode range type and disallows the + use of `FDEF` and `IDEF` while running the glyph program. + + Most other state is copied from the `TT_Size` into the execution + context. However, it is possible for a glyph program to use `WS` to + write to the storage area or `WCVTP`, `WCVTF`, and `DELTAC[123]` to + write to the control value table. + + Allowing any change to the global state from the glyph program is + problematic as the outlines of any given glyph may change based on + the order the glyphs are loaded or even how many times they are + loaded. There exist fonts that write to the storage area or the + control value table in the glyph program, so their use should not be + an error. + + Possible solutions to using these in the glyph program are + + * ignore the writes; + * value-level copy on write, discard modified values when finished; + * array-level copy on write, discard the copy when finished; + * array-level copy up-front. + + Ignoring the writes may break otherwise good uses. A full copy + up-front was implemented, but was quite heavy as even well behaved + fonts required a full copy and the memory management that goes along + with it. Value-level copy on write could use less memory but + requires a great deal more record keeping and complexity. This + change implements array-level copy on write. If any attempt is made + to write to the control value table or the storage area when the + initial bytecode range was in a glyph program, the relevant array + will be copied to a designated storage area and the copy used for + the rest of the glyph program's execution. + + * src/truetype/ttinterp.h (TT_ExecContextRec): New fields + `iniRange`, `glyfCvtSize`, `glyfCvt`, `origCvt`, `glyfStoreSize`, + `glyfStorage`, and `origStorage`. + + * src/truetype/ttinterp.c (Modify_CVT_Check): New function to handle + `exc->glyfCvt`. + (Write_CVT, Write_CVT_Stretched, Move_CVT, Move_CVT_Stretched): Use + it. + (Ins_WS): Handle `exc->glyfStorage`. + (Ins_FDEF, Ins_IDEF): Updated. + (TT_RunIns): Updated. + (TT_Done_Context): Free 'glyf' CVT working and storage area. + (TT_Load_Context): Fix/add casts. + + * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Fix cast. + +2021-03-30 Dominik Röttsches <drott@chromium.org> + + [sfnt] Check validity of pointer location of `read_color_line`. + + * src/sfnt/ttcolr.c (get_child_table_pointer): New function to fetch + child table pointer early for all paint formats that compute a child + table pointer. + (read_color_line, read_paint): Updated. + (tt_face_get_colorline_stops): Check `colr->table`. + +2021-03-28 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com> + + [docs] Update docwriter stylesheet for 1.3.1. + + This change is required to support docwriter 1.3.1. + + See + + https://gitlab.freedesktop.org/freetype/docwriter/-/merge_requests/101 + + for more information. + + * docs/markdown/stylesheets/extra.css: + (.wy-nav-content, .md-sidebar--secondary): Remove. + +2021-03-16 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/sfnt/pngshim.c (Load_SBit_Png): Free `rows` once later. + +2021-03-16 Ben Wagner <bungeman@google.com> + + [sfnt] Fix memory leak in png loading. + + Reported as + + https://bugs.chromium.org/p/chromium/issues/detail?id=1182552 + + Memory is allocated and the pointer assigned to `rows` inside a + 'setjmp' scope. This memory must be freed outside the 'setjmp' + scope after a 'longjmp'. Since `rows` is a local and modified + inside the 'setjmp' scope it must be marked volatile or it will have + an indeterminate value after the 'longjmp'. + + * src/sfnt/pngshim.c (Load_SBit_Png): Fix memory leak of `rows`. + +2021-03-16 Christopher Degawa <ccom@randomderp.com> + + * CMakeLists.txt: Don't limit generation of 'pkg-config' file to UNIX. + + mingw-w64 uses the 'pkg-config' files but does not set UNIX. + +2021-03-11 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/smooth/ftgrays.c (gray_set_cell): Refactor to fix VC++ warning. + +2021-03-13 Werner Lemberg <wl@gnu.org> + + Handle various VC++ compiler warnings. + + Fixes #1039. + + * src/base/ftstroke.c (ft_stroker_inside, ft_stroker_outside): + Initialize `sigma`. + + * src/sdf/ftsdf.c (sdf_generate_with_overlaps): Exit immediately if + function arguments are invalid. + * src/sdf/ftsdfrend.c (sdf_property_set) <"overlaps">: Fix cast. + + * src/sfnt/sfwoff2.c (woff2_decompress) + [!FT_CONFIG_OPTION_USE_BROTLI]: Use `FT_UNUSED`. + + * src/truetype/ttgxvar.c (TT_Get_MM_Var): Initialize `fvar_head`. + +2021-03-11 Alexei Podtelezhnikov <apodtele@gmail.com> + + [smooth] Reduce copying during integration phase. + + We now record `cover' and `area' directly into the linked list. This + makes rendering faster by 10% or even more at larger sizes. + + * src/smooth/ftgrays.c (FT_INTEGRATE): Write directly. + (gray_TWorker): Add direct cell reference and remove unused fields. + (gray_set_cell): Consolidate the linked list management and pointers. + (gray_convert_glyph, gray_convert_glyph_inner): Updated. + +2021-03-10 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/smooth/ftgrays.c (FT_INTEGRATE): New convenience macro. + (gray_render_line, gray_render_scanline): Use it. + +2021-03-09 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/smooth/ftgrays.c (gray_render_line): Rearrange conditionals. + + These produce faster or more optimizable code. + +2021-03-08 Tim-Philipp Müller <tim@centricular.com> + + [meson] Fix 'mmap' handling on Windows. + + * meson.build (ft2_sources): Always use `windows/ftsystem.c` on + Windows unless mmap has been disabled. + + https://gitlab.freedesktop.org/freetype/freetype/-/merge_requests/5#note_829289 + +2021-03-07 Tim-Philipp Müller <tim@centricular.com> + + [ci] Add basic support for Meson builds with MSVC on Windows. + + This adds meson jobs for VS2017 (x86 and x86_64). + + * .gitlab-ci.yml: New file. + +2021-03-07 Tim-Philipp Müller <tim@centricular.com> + + [meson] Add subproject fallbacks for 'libpng' and 'zlib'. + + * subprojects/libpng.wrap, subprojects/zlib.wrap: New files. + + * meson.build: Updated. + +2021-03-07 Xavier Claessens <xavier.claessens@collabora.com> + + [meson] Make it work with Windows. + + * meson.build: Do not process `ftconfig.h` when not using + `ftconfig.h.in`. + + Fixes #1029. + +2021-02-25 Werner Lemberg <wl@gnu.org> + + [woff2] Fix memory leak. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28148 + + * src/sfnt/sfwoff2.c (woff2_open_font): Reject fonts that have + multiple tables with the same tag. While not explicitly forbidden + in the OpenType specification, it is implicitly forbidden by + describing a binary search algorithm for tables that only works + reliably if table tags are unique. + +2021-02-22 Werner Lemberg <wl@gnu.org> + + * CMakeLists.txt: Update location of `LICENSE.TXT`. + + Fixes #1035. + +2021-02-19 Werner Lemberg <wl@gnu.org> + + * builds/unix/ax_pthread.m4: Update from 'autoconf-archive'. + + A bunch of fixes were added recently to its git repository. + +2021-02-17 Werner Lemberg <wl@gnu.org> + + [unix] Updates for autoconf 2.71. + + This fixes warnings reported by autoupdate. + + * builds/unix/ax_pthread.m4: Replace `as_echo` with `AS_ECHO`. + + * builds/unix/configure.raw: Remove obsolete `AC_HEADER_STDC`. + Don't escape back quotes in messages for `AC_MSG_WARN`. + +2021-02-16 Werner Lemberg <wl@gnu.org> + + * builds/toplevel.mk: Fix previous commit. + + <top_level>: Use `TOP_DIR` in `wildcard` function. + (check_out_submodule, copy_submodule): Move down to come after + definition of `all` rule. + Call `mkdir` conditionally. + +2021-02-16 Werner Lemberg <wl@gnu.org> + + * builds/toplevel.mk: Use rules for handling 'dlg'. + + Suggested by Alexei. + + (check_out_submodule, copy_submodule): New targets. + <top-level>: Replace calls to `shell` with rules. + +2021-02-16 Werner Lemberg <wl@gnu.org> + + * builds/toplevel.mk: Avoid side effects of `shell`. + + We use a dummy variable to catch its output. Otherwise the `make` + program is going to interpret the return value of `shell`; this can + cause obscure warning or error messages or even be harmful. + +2021-02-16 Werner Lemberg <wl@gnu.org> + + Move 'dlg' submodule to `subprojects` directory. + + This is for future changes with Meson, which doesn't allow a + different name for its `subprojects` directory. Having both a + `submodules` and a `subprojects` directory is confusing. + + * .gitmodules, autogen.sh (copy_submodule_files, DLG_INC_DIR, + DLG_SRC_DIR): Updated. + + * builds/toplevel.mk (<top-level>, do-dist), + builds/windows/vc2010/script.bat: Updated. + + * src/tools/no-copyright: Updated. + +2021-02-16 Dominik Röttsches <drott@chromium.org> + + [sfnt] Update paint format values to support non-variable paints. + + * freetype.h (FT_PaintFormat): Update paint format identifiers after + a specification change. The specification was updated to have + sibling formats, variable and non-variable variants for each. + Reflect that here. + + * sfnt/ttcolr.c (read_paint): Remove parsing of variable indices as + the non-variable formats no longer have them. + +2021-02-15 Daniel E <daniel.engberg.lists@pyret.net> + + * CMakeLists.txt: Improve 'bz2' support. + + Not all distributions such as FreeBSD provide a `.pc` file for + '(lib)bz2' so follow autotools and add it to `Libs.private` instead. + +2021-02-13 Werner Lemberg <wl@gnu.org> + + * src/tools/update-copyright-year: Fix single-year entry handling. + + The fix from 2021-01-17 didn't cover the case where the year to be + updated is identical to the current year. + +2021-02-13 Werner Lemberg <wl@gnu.org> + + Add new function `FT_Get_Transform`. + + See + + https://github.com/harfbuzz/harfbuzz/issues/2428 + + for some reasons to introduce this function. + + * include/freetype/freetype.h, src/base/ftobjs.c (FT_Get_Transform): + Implement it. + +2021-02-12 Alexei Podtelezhnikov <apodtele@gmail.com> + + Decorate `qsort` callbacks with `cdecl`. + + * include/freetype/internal/compiler-macros.h (FT_COMPARE_DEF): + Add new macro. + + * src/base/ftrfork.c, src/bdf/bdflib.c, src/gxvalid/gxvcommn.c, + src/psaux/afmparse.c, src/psnames/psmodule.c, src/type1/t1afm.c, + src/sfnt/sfwoff.c, src/sfnt/sfwoff2.c: Update `qsort` callbacks. + + Fixes #1026 when compiling FreeType with an unusual calling + convention while the C library function `qsort` still expects + `cdecl`. + +2021-02-10 Dominik Röttsches <drott@chromium.org> + + [sfnt] Implement 'COLR' v1 sweep gradients. + + * freetype.h (FT_PaintSweepGradient): Add `FT_PaintSweepGradient` to + represent a 'COLR' v1 sweep gradient. + Update format. + (FT_PaintFormat): Update shifted paint formats. + Sync with spec. + * sfnt/ttcolr.c (read_paint): Logic to parse sweep gradients. + Fix struct access in radial gradient implementation. + +2021-02-09 Dominik Röttsches <drott@chromium.org> + + [sfnt] Provide optional root transform for 'COLR' v1 glyph graph. + + * include/freetype/freetype.h (FT_Get_Color_Glyph_Paint): + Additional function argument `root_transform` to control whether + root transform should be returned. + (FT_OpaquePaint): Additional tracking field to denote whether + root transform is to be returned. + * include/freetype/internal/sfnt.h + (TT_Get_Color_Glyph_Paint_Func): Propagate additional argument. + * src/base/ftobjs.c (FT_Get_Color_Glyph_Paint): Ditto. + * src/sfnt/ttcolr.c (tt_face_get_colr_glyph_paint): Return root + transform reflecting the size and tranform configured on + `FT_Face`. + (read_paint): Initialize and track status of insert_root_transform + flag. + +2021-02-09 Xavier Claessens <xavier.claessens@collabora.com> + + * meson.build: s/freetype2_dep/freetype_dep/. + + Many projects (e.g., fontconfig, cairo) hardcode the `freetype_dep` + variable name to use FreeType as subproject because that was the + variable name in Centricular's Meson port of FreeType. While they + should stop hardcoding that variable name, it does not cost us + anything to keep using that name to ease transition. + +2021-02-09 Xavier Claessens <xavier.claessens@collabora.com> + + [meson] Fix handling of HarfBuzz library. + + * meson.build (harfbuzz_dep): Do not fall back to HarfBuzz by + default. + + Otherwise it causes a dependency cycle: + + cairo => fontconfig => freetype2 => harfbuzz => cairo + + Meson will still fall back to HarfBuzz subprojects if the `harfbuzz` + option is set to `enabled` instead of `auto` and a + `subprojects/harfbuzz.wrap` file is present. In that case it is the + responsibility of the main project to set the proper options on each + subproject to break the dependency cycle. + + Fixes: #1028. + +2021-02-09 Xavier Claessens <xavier.claessens@collabora.com> + + [meson] Fix dependency lookup and generate `ftconfig.h`. + + - zlib: If not found on the system, meson can build it as a + subproject. We thus never use the (outdated) zlib support that + comes with FreeType. Doing so has the additional advantage that + the zlib code can be shared with other projects like GLib if both + are subprojects of an application. + - harfbuzz: Build as a subproject if not found on the system. + - 'QUESTION: What if the compiler doesn't support `-D` but uses `/D` + instead as on Windows?' Answer: Meson translate arguments for us. + - visibility: Replace self-made code with meson-specific solution. + + * meson.build (ft2_defines): Rewrite logic to set and handle it. + (process_header_command): New variable, previously called + `ftoption_command`. + (ftoption_command, ftconfig_command): New variables. + (zlib_option): Removed. + (zlib_dep): New variable. + (ft2_deps): Updated. + (harfbuzz_dep): Updated. + (ftconfig_h_in, ftconfig_h): New variables. + (ft2_sources): Updated. + (ft2_lib): Updated, handle visibility. + (summary): Updted. + + * meson_options.txt (zlib): Updated. + +2021-02-09 Xavier Claessens <xavier.claessens@collabora.com> + + * meson.build: Fix resource compilation on Windows. + + This is copied from GStreamer's meson port of FreeType. + + (ft2_sources): Add both debug and resource file (the latter for + Windows only). + (ft2_debug_src): Removed. + +2021-02-09 Xavier Claessens <xavier.claessens@collabora.com> + + * meson.build: s/ft2_libtool_version/ft2_pkgconfig_version/. + + (freetype2_dep): Use it. + + `ft2_libtool_version` would be the shared library version, not the + one we should use in file `freetype2.pc`. + +2021-02-09 Xavier Claessens <xavier.claessens@collabora.com> + + * meson.build: Use `meson.override_dependency`. + + This is a new meson mechanism to avoid other projects to hard-code + the `freetype2_dep` variable name in their build definition. It + also ensures that meson does not mix system and subproject versions + of FreeType inside of the same project. + + Also remove outdated TODO because `declare_dependency` was already + there. + +2021-02-09 Xavier Claessens <xavier.claessens@collabora.com> + + * meson.build (bzip2_dep): Simplify. + + We remove `static:false` from `find_library('bz2')`. + + I don't know whether the previous code was a workaround for an old + meson bug, but at least with version >=0.55.0 (which FreeType uses) + it picks the shared library when both are available. + + File `freetype2.pc` still contains the full path to file `libbz2.so` + instead of `-lbz2` – that we need to do this is a meson bug even + present in the current version (0.57.0). + +2021-02-09 Xavier Claessens <xavier.claessens@collabora.com> + + * meson.build: Set project version. + +2021-02-04 Werner Lemberg <wl@gnu.org> + + [base] Fix Netpbm tracing message. + + * src/base/ftobjs.c (FT_Render_Glyph_Internal): Don't emit Netpbm + warning if there is nothing to output. + +2021-02-04 Werner Lemberg <wl@gnu.org> + + * src/*: Don't use more than one '\n' in `FT_TRACE` and `FT_ERROR`. + + This ensures good logging output, with all lines having a proper + prefix (if requested). + + This is a continuation of a similar patch from 2020-12-02, which + missed some locations. + +2021-02-03 Alexei Podtelezhnikov <apodtele@gmail.com> + + * builds/unix/configure.raw [mmap]: Restore default path. + + Fixes #1023. + +2021-02-03 Werner Lemberg <wl@gnu.org> + + [psaux] Fix integer overflow. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30154 + + * src/psaux/psblues.c (cf2_blues_capture): Use `SUB_INT32`. + +2021-02-02 Alexei Podtelezhnikov <apodtele@gmail.com> + + * builds/unix/configure.raw [mmap support]: Explicitly handle Windows. + + Fixes #1024. + +2021-01-31 Werner Lemberg <wl@gnu.org> + + * builds/unix/configure.raw [mmap support]: Correctly handle Windows. + + Fixes #1024. + +2021-01-31 Werner Lemberg <wl@gnu.org> + + * builds/windows/ftdebug.c: Synchronize with `src/base/ftdebug.c`. + +2021-01-31 Werner Lemberg <wl@gnu.org> + + Always provide logging API. + + It's easier to have stubs if FT_DEBUG_LOGGING is undefined than to + modify `ftexport.sym` conditionally. + + Problem reported by Alexei. + + * src/base/ftdebug.c: Include `ftlogging.h`. + (FT_Trace_Set_Level, FT_Trace_Set_Default_Level, FT_Set_Log_Handler, + FT_Set_Default_Log_Handler) [!FT_DEBUG_LOGGING]: Provide stubs. + +2021-01-31 Werner Lemberg <wl@gnu.org> + + * builds/unix/configure.raw: Fix typo. + + Bug introduced in Vincent's last commit bb33f03. + + Fixes issue #1021. + +2021-01-27 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/base/ftstroke.c (FT_Stroker_EndSubPath): Ignore tiny gaps. + + Fixes bug #1020. + +2021-01-27 Alexei Podtelezhnikov <apodtele@gmail.com> + + [stroker] Minor clean-up. + + * src/base/ftstroke.c (FT_Stroker_{ConicTo,CubicTo}): Reset the last + line length. + (FT_Stroker_EndSubPath): Call `ft_stroker_process_corner'. + +2021-01-27 Vincent Torri <vincent.torri@gmail.com> + + * builds/windows/ftsystem.c: Add shared memory support on Windows. + + * CMakeLists.txt (BASE_SRCS), builds/unix/configure.raw (FTSYS_SRC), + builds/windows/vc2010/freetype.vcxproj, + builds/windows/visualc/freetype.vcproj, meson.build (ft2_sources): + Add it (conditionally). + +2021-01-23 Werner Lemberg <wl@gnu.org> + + Require HarfBuzz 2.0.0. + + This is needed to make commit f1f9705f9 work. + + * CMakeLists.txt (HARFBUZZ_MIN_VERSION), builds/unix/configure.raw + (harfbuzz_pkg), meson.build (harfbuzz_dep): Updated. + +2021-01-22 Alexei Podtelezhnikov <apodtele@gmail.com> + + * autogen.sh: Absorb `version.sed'. + * version.sed: Removed. + +2021-01-19 Alexei Podtelezhnikov <apodtele@gmail.com> + + * srd/base/ftlcdfil.c (FT_Library_SetLcdGeometry): Fix return value. + +2021-01-15 Nikolaus Waxweiler <madigens@gmail.com> + + [afshaper] Fix hb_ot_tags_from_script deprecation warning. + + * autofit/afshaper.c (af_shaper_get_coverage): Copy the source code + of the function as suggested in + https://github.com/harfbuzz/harfbuzz/issues/2737 and adjust to handle + at most three tags. + +2021-01-17 Werner Lemberg <wl@gnu.org> + + * src/tools/update-copyright-year: Fix single-year entry handling. + +2021-01-16 Alexei Podtelezhnikov <apodtele@gmail.com> + + * builds/unix/unixddef.mk: Remove the second DEVEL_DIR definition. + +2021-01-14 Dominik Röttsches <drott@chromium.org> + + [sfnt] Additional checks for 'colr' table presence. + + * sfnt/ttcolr.c (tt_face_get_colr_glyph_paint, + tt_face_get_colorline_stops, tt_face_get_paint): Additional checks + for whether colr table is present. Prevents crashes when these + methods are called on non-COLR fonts. + +2021-01-13 Dominik Röttsches <drott@chromium.org> + + Add config option to test for 'COLR' v1 support in headers. + + * include/freetype/config/ftoption.h (TT_SUPPORT_COLRV1): New macro + so that clients can test whether the FreeType checkout that they are + building against supports the 'COLR' v1 API. This is intended to be + a temporary solution until 'COLR' v1 support is released in a + FreeType version and such a check can be made by using the version + number instead. + +2020-12-16 Dominik Röttsches <drott@chromium.org> + + [base] Fill 'COLR' v1 API templates to make them work (#59703). + + * src/base/ftobjs.c (FT_Get_Color_Glyph_Paint, FT_Get_Paint_Layers, + FT_Get_Paint, FT_Get_Colorline_Stops): Add basic sanity checks, + check for existence of `FT_Face`, check arguments and delegate calls + for the respective 'COLR' v1 API to the SFNT driver. + +2020-12-16 Dominik Röttsches <drott@chromium.org> + + [sfnt] Register 'COLR' v1 API in driver (#59703). + + * include/freetype/internal/sfnt.h (TT_Get_Color_Glyph_Paint_Func, + TT_Get_Paint_Layers_Func, TT_Get_Colorline_Stops_Func, + TT_Get_Paint_Func): New function pointer types. + (SFNT_Interface): Add them. + (FT_DEFINE_SFNT_INTERFACE): Updated. + + * src/sfnt/sfdriver.c (PUT_COLOR_LAYERS_V1): New macro. + (sfnt_interface): Add new function pointers. + +2020-12-16 Dominik Röttsches <drott@chromium.org> + + [sfnt] Add 'COLR' v1 API to retrieve color layers (#59703). + + * src/sfnt/ttcolr.c (tt_face_get_paint_layers): New function to get + the layers of a `PaintColrLayers` table in the font, using an + `FT_LayerIterator` from an `FT_PaintColrLayers` object retrieved via + `tt_face_get_paint`. + + * src/sfnt/ttcolr.h: Updated. + +2020-12-16 Dominik Röttsches <drott@chromium.org> + + [sfnt] Add 'COLR' v1 API to iterate color stops (#59703). + + * src/sfnt/ttcolr.c (tt_face_get_colorline_stops): New function to + return the current `FT_ColorStop` object from `FT_ColorStopIterator`. + Also increment the iterator. + + * src/sfnt/ttcolr.h: Updated. + +2020-12-16 Dominik Röttsches <drott@chromium.org> + + [sfnt] Add API to get actual paint from `FT_OpaquePaint` (#59703). + + * src/sfnt/ttcolr.c (tt_face_get_paint): New function to resolve an + `FT_OpaquePaint` paint reference into an `FT_COLR_Paint` object of a + certain format, which contains the detailed information stored in a + paint of the respective format. + (read_paint): New function to provide the format specific parsing + and to populate the data members of each specific `FT_COLR_Paint` + subtype. + (read_color_line): New function to parse retrieved color line + information into an `FT_ColorLine` object, which has information + about the color line extend mode as well as an + `FT_ColorStopIterator` object. + + * src/sfnt/ttcolr.h: Updated. + +2020-12-16 Dominik Röttsches <drott@chromium.org> + + [sfnt] Add API to retrieve 'COLR' v1 root paint (#59703). + + * src/sfnt/ttcolr.c (BaseGlyphV1Record): New structure. + (tt_face_load_colr): Handle version 1 table header. + (find_base_glyph_v1_record): New auxiliary function. + (tt_face_get_colr_glyph_paint): New function to find the root + `FT_OpaquePaint` object for a given glyph ID. + + * src/sfnt/ttcolr.h: Updated. + +2020-12-16 Dominik Röttsches <drott@chromium.org> + + Add new methods required for 'COLR' v1 to public API (#59703). + + * include/freetype/freetype.h (FT_Get_Color_Glyph_Paint): New method + for retrieving the root paint object for a color glyph by specifying + a glyph ID. + (FT_Get_Paint_Layers): New method for retrieving the layers of a + `PaintColorGlyph`. + (FT_Get_ColorLine_Stops): New method for retrieving the stops of a + color. + (FT_Get_Paint): New method for resolving an `FT_OpaquePaint` into an + `FT_COLR_Paint` object. + +2020-12-16 Dominik Röttsches <drott@chromium.org> + + Add types required for 'COLR' v1 to public API (#59703). + + * include/freetype/freetype.h (FT_PaintFormat, FT_ColorStopIterator, + FT_ColorIndex, FT_ColorStop, FT_PaintExtend, FT_ColorLine, + FT_Affine23, FT_CompositeMode, FT_OpaquePaint, FT_PaintColrLayers, + FT_PaintSolid, FT_PaintLinearGradient, FT_PaintRadialGradient, + FT_PaintGlyph, FT_PaintColrGlyph, FT_PaintTransformed, + FT_PaintTranslate, FT_PaintRotate, FT_PaintSkew, FT_PaintComposite, + FT_COLR_Paint): Adding structs and enum to represent paint format, + color stop information, gradient extend information, structs to + reference paint offsets, and to define transforms and compositions. + Adding a union type to represent the union of the structs, + distinguished by `FT_PaintFormat`. + +2021-01-10 Werner Lemberg <wl@gnu.org> + + * builds/*: s/BUILD_DIR/PLATFORM_DIR/. + + The old variable name caused confusion. + +2021-01-08 Alexei Podtelezhnikov <apodtele@gmail.com> + + [builds] Revert `FTMODULE_H' changes. + + * builds/toplevel.mk, builds/freetype.mk: Revert changes. + +2021-01-07 Alexei Podtelezhnikov <apodtele@gmail.com> + + [builds/windows] Fix up DLG build with VC++. + + * builds/windows/vc2010/script.bat: Copy headers to include/. + * builds/windows/vc2010/freetype.vcxproj: Remove DLG paths. + +2021-01-07 Alexei Podtelezhnikov <apodtele@gmail.com> + + [builds] Relocate `FTMODULE_H'. + + * builds/toplevel.mk: Place `FTMODULE_H' in include/. + * builds/freetype.mk: Simplify included path. + +2021-01-07 Werner Lemberg <wl@gnu.org> + + Fix ABI incompatibility. + + * include/freetype/ftimage.h (FT_Pixel_Mode): Don't insert + `FT_PIXEL_MODE_GRAY16' but append it. + + * src/base/ftobjs.c (pixel_modes): Updated. + +2021-01-07 Alexei Podtelezhnikov <apodtele@gmail.com> + + [dlg] Move the headers to include/dlg to simplify their use. + + * autogen.sh, builds/toplevel.mk: Copy headers to include/dlg. + * builds/freetype.mk, builds/windows/vc2010/freetype.vcxproj: + Simplify included path. + * include/freetype/internal/ftdebug.h: Simplify #include. + * src/dlg/rules.mk, .gitignore: Updated. + +2021-01-06 Werner Lemberg <wl@gnu.org> + + * meson.build: Add summary. + + Based on a patch from Vincent Torri <vincent.torri@gmail.com>. + +2021-01-06 Torsten Hilbrich <emacs.nolkaf@hilbrich.tk> + + * meson.build: Fix 'png' build option (#59458). + + Without this patch, 'png' is always required. + +2021-01-04 Alexei Podtelezhnikov <apodtele@gmail.com> + + [builds/windows] Add SDF to VC2010 project. + + * builds/windows/vc2010/freetype.vcxproj: Updated; + AfterBuild conveniences. + +2020-12-26 Werner Lemberg <wl@gnu.org> + + [sdf] Use 'counter-clockwise', not 'anti-clockwise'. + + We prefer US nomenclature. + + * src/sdf/ftsdf.c (SDF_Contour_Orientation): + s/SDF_ORIENTATION-ACW/SDF_ORIENTATION_CCW/. + Update all users. + +2020-12-26 Werner Lemberg <wl@gnu.org> + + * src/base/ftobjs.c (pixel_modes): Updated. + +2020-12-26 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Remove custom memory tracker. + + The internal FreeType memory tracker is sufficient. + + * src/sdf/ftsdf.c (FT_DEBUG_INNER, FT_ASSIGNP_INNER, SDF_MemoryUser, + sdf_alloc, sdf_free, SDF_ALLOC, SDF_FREE, + SDF_MEMORY_TRACKER_DECLARE, SDF_MEMORY_TRACKER_SETUP, + SDF_MEMORY_TRACKER_DONE): Removed. + + s/SDF_ALLOC/FT_ALLOC/. + s/SDF_FREE/FT_FREE/. + + Other updates. + +2020-12-24 Werner Lemberg <wl@gnu.org> + + [sdf] Fix `make multi`. + + * src/sdf/ftsdf.c: Include `ftoutln.h`. + +2020-12-24 Werner Lemberg <wl@gnu.org> + + [sdf] Fix tracing. + + * include/freetype/internal.fttrace.h: Add 'bsdf' component. + + * src/sdf/ftbsdf.c, src/sdf/ftsdf.c (FT_COMPONENT): Define. + +2020-08-21 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add debugging function. + + * src/sdf/ftsdf.c (sdf_shape_dump): New function. + +2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add 'bsdf' renderer to 'sdf' module. + + * src/sdf/ftsdfrend.c (ft_bsdf_render): New function. + + (ft_bitmap_sdf_renderer_class): New structure. + +2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add interface functions for the 'bsdf' rasterizer. + + * src/sdf/ftsdf.c (bsdf_raster_new, bsdf_raster_reset, + bsdf_raster_set_mode, bsdf_raster_render, bsdf_raster_done): New + functions. + + (ft_bitmap_sdf_raster): New variable. + + * src/sdf/ftsdf.h: Updated. + +2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add function to copy SDF data into output bitmap. + + * src/sdf/ftbsdf.c (finalize_sdf): New function. + +2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add '8-point sequential Euclidean distance mapping' algorithm. + + * src/sdf/ftbsdf.c (compare_neighbor, first_pass, second_pass, + edt8): New functions. + +2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add function to copy source bitmap to distance map. + + * src/sdf/ftbsdf.c (bsdf_init_distance_map): New function. + +2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add functions to compute pixel edge distances. + + * src/sdf/ftbsdf.c (compute_edge_distance, bsdf_approximate_edge): + New functions. + +2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add function to find edge pixels in a grid of alpha values. + + * src/sdf/ftbsdf.c (bsdf_is_edge): New function. + +2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add essential structures for the 'bsdf' rasterizer. + + * src/sdf/ftbsdf.c (ONE): New macro. + (BSDF_TRaster, ED, BSDF_Worker): New structures. + (zero_ed): New constant. + +2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add 'sdf' module to non-gnumake build systems. + + * include/freetype/config/ftmodule.h: Add both the 'sdf' and 'bsdf' + renderers to the list of modules. + + * CMakeLists.txt (BASE_SRCS): Add 'sdf' single-object module. + +2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Added basic overlapping contour support. + + * src/sdf/ftsdf.c (sdf_generate_with_overlaps): New function. + (sdf_raster_render): Enable it. + +2020-08-19 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add build infrastructure. + + * src/sdf/module.mk, src/sdf/rules.mk: New files. + + * src/sdf/ftsdf.h (ft_sdf_raster): New forward declaration. + + * include/freetype/ftmoderr.h (FT_MODERRDEF): Add error definition + for the 'sdf' module. + + * include/freetype/internal/fttrace.h (FT_TRACE_DEF): Add trace + definition for the `sdf' module. + + * modules.cfg (RASTER_MODULES): Add the `sdf' module to the list of + rasterizers. + +2020-08-19 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add interface functions for the 'sdf' rasterizer. + + * src/sdf/ftsdf.c (sdf_raster_new, sdf_raster_reset, + sdf_raster_set_mode, sdf_raster_render, sdf_raster_done): New + functions. + (ft_sdf_raster): New structure. + +2020-08-19 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add subdivision and bounding box optimization. + + * src/sdf/ftsdf.c (sdf_generate_bounding_box): New function, which + is an optimized version of `sdf_generate`. + (sdf_generate_subdivision): New function. + +2020-08-19 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add function to generate SDF. + + * src/sdf/ftsdf.c (sdf_generate): New function, currently disabled. + This is a proof-of-concept implementation: It doesn't use any + optimization, it simply checks all grid points against all contours. + +2020-08-19 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add functions to get shortest distance from any edge/contour. + + * src/sdf/ftsdf.c (sdf_edge_get_min_distance): New function. + (sdf_contour_get_min_distance): New function, currently disabled. + +2020-08-18 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add shortest distance finding functions. + + * src/sdf/ftsdf.c (get_min_distance_line, get_min_distance_conic, + get_min_distance_cubic): New functions. Note that + `get_min_distance_conic` comes with two implementations (using an + analytical and an iterative method, to be controlled with the + `USE_NEWTON_FOR_CONIC` macro). + +2020-08-18 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add function to resolve corner distances. + + * src/sdf/ftsdf.c (resolve_corner): New function. + +2020-08-18 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add essential math functions. + + * src/sdf/ftsdf.c (cube_root, arc_cos) [!USE_NEWTON_FOR_CONIC]: New + auxiliary functions. + + * src/sdf/ftsdf.c (solve_quadratic_equation, solve_cubic_equation) + [!USE_NEWTON_FOR_CONIC]: New functions. + +2020-08-18 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add utility functions for contours. + + * src/sdf/ftsdf.c (get_control_box, get_contour_orientation): New + functions. + (split_conic, split_cubic, split_sdf_conic, split_sdf_cubic, + split_sdf_shape): New functions. + +2020-08-17 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add functions to decompose `FT_Outline`. + + * src/sdf/ftsdf.c (sdf_move_to, sdf_line_to, sdf_conic_to, + sdf_cubic_to): New auxiliary decomposition functions. + (sdf_compose_funcs): New structure. + (sdf_outline_decompose): New function. + +2020-08-17 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Structs, enums, macros, and functions for 'sdf' rasterizer. + + * src/sdf/ftsdf.c (FT_DEBUG_INNER, FT_ASSIGNP_INNER) + [FT_DEBUG_LEVEL_TRACE && FT_DEBUG_MEMORY]: New macros. + (SDF_MemoryUser) [FT_DEBUG_LEVEL_TRACE && FT_DEBUG_MEMORY]: New + struct for memory usage tracing. + (sdf_alloc, sdf_free) [FT_DEBUG_LEVEL_TRACE && FT_DEBUG_MEMORY]: New + functions for memory usage tracing. + + (SDF_ALLOC, SDF_FREE): New macros for memory management. + (SDF_MEMORY_TRACKER_DECLARE, SDF_MEMORY_TRACKER_SETUP, + SDF_MEMORY_TRACKER_DONE): New macros to set up memory usage tracing. + + (USE_NEWTON_FOR_CONIC, MAX_NEWTON_DIVISIONS, MAX_NEWTON_STEPS, + CORNER_CHECK_EPSILON, CG_DIMEN): New configuration macros for + controlling the process of finding the shortest distance. + + (MUL_26D6, VEC_26D6_DOT): New auxiliary macros. + + (SDF_TRaster, SDF_Edge, SDF_Contour, SDF_Shape, SDF_Signed_Distance, + SDF_Params): New structs for setting up SDF data. + (SDF_Edge_Type, SDF_Contour_Orientation): New enums for SDF data. + + (zero_vector, null_edge, null_contour, null_shape, max_sdf): Useful + constants. + + (sdf_edge_new, sdf_edge_done, sdf_contour_new, sdf_contour_done, + sdf_shape_new, sdf_shape_done): New constructors and destructors. + +2020-08-17 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add raster parameters structure. + + * src/sdf/ftsdf.h (SDF_Raster_Params): New structure. + + * src/sdf/sdf.c: Include source files in order to make a single + object of the module. + +2020-08-17 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add 'sdf' renderer. + + * src/sdf/ftsdf.c: Add 'sdf' renderer along with its interface + functions. + Also add functions to set and get properties. + +2020-08-17 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add common elements for 'sdf' and 'bsdf' renderers. + + * src/sdf/ftsdfrend.h (SDF_Rendere_Module, ft_sdf_renderer_class, + ft_bitmap_sdf_renderer_class): New structures. + + * src/sdf/ftsdfcommon.h (DEFAULT_SPREAD, MIN_SPREAD_MAX_SPREAD, + USE_SQUARED_DISTANCES): New macros. + (FT_INT_26D6, FT_INT_16D16, FT_26D6_16D16): New macros. + (FT_CALL, VECTOR_LENGTH_16D16): New macros. + (FT_26D6_Vec, FT_16D16_Vec, FT_16D16, FT_26D6, FT_6D10, FT_CBox): + New typedefs. + (square_root): New macro. + + * src/sdf/ftsdferrs.h: Add module error setup. + +2020-08-16 Anuj Verma <anujv@iitbhilai.ac.in> + + [sdf] Add files for new 'sdf' module. + + Here is a breakdown of what the files will contain. + + * src/sdf/ftsdfrend.c, src/sdf/ftsdfrend.h: The 'sdf' and 'bsdf' + renderers. + + * src/sdf/ftsdf.c, src/sdf/ftsdf.h: The rasterizer for the 'sdf' + renderer. + * src/sdf/ftbsdf.c, src/sdf/ftbsdf.h: The rasterizer for the 'bsdf' + renderer. + + * src/sdf/ftsdfcommon.h: Commmon properties and functions for both + rasterizers. + * src/sdf/ftsdferrs.h: Common error defines. + + * src/sdf/sdf.c: For building a single object of the entire module. + +2020-08-16 Anuj Verma <anujv@iitbhilai.ac.in> + + [base] Allow renderers of different formats. + + * src/base/ftobjs.c (FT_Render_Glyph_Internal): Do not return if the + glyph's slot format is `FT_GLYPH_FORMAT_BITMAP`. The forthcoming + 'bsdf' renderer will require bitmaps for processing. + + * src/base/ftobjs.c (ft_add_renderer, ft_remove_renderer): Remove + renderer's glyph format check before adding and removing them. The + 'bsdf' renderer will have a format `FT_GLYPH_FORMAT_BITMAP`. + +2020-08-16 Anuj Verma <anujv@iitbhilai.ac.in> + + Add data types required for the forthcoming 'sdf' module. + + * include/freetype/freetype.h (FT_Render_Mode): Add new render mode + `FT_RENDER_MODE_SDF`, which will be used to generate SDF. + + * include/freetype/ftimage.h (FT_Pixel_Mode): Add new pixel mode + `FT_PIXEL_MODE_GRAY16`, which will be the output of the 'sdf' + module. + (FT_RASTER_FLAG_SDF): New raster flag to be used internally by the + 'sdf' module. + + * include/freetype/fttypes.h (FT_F6Dot10): New data type. + +2020-08-16 Anuj Verma <anujv@iitbhilai.ac.in> + + [base] Allow renderers of different formats. + + * src/base/ftobjs.c (FT_Render_Glyph_Internal): Do not return if the + glyph's slot format is `FT_GLYPH_FORMAT_BITMAP`. The forthcoming + 'bsdf' renderer will require bitmaps for processing. + + * src/base/ftobjs.c (ft_add_renderer, ft_remove_renderer): Remove + renderer's glyph format check before adding and removing them. The + 'bsdf' renderer will have a format `FT_GLYPH_FORMAT_BITMAP`. + +2020-12-23 Werner Lemberg <wl@gnu.org> + + * builds/windows/detect.mk (COPY): Make it work with `shell`. + + Without this patch, we get the error + + builds/toplevel.mk:127: *** missing separator. Stop. + + Reported by Anuj, with a solution from Alexei. + +2020-12-23 Ignacio Casal Quinteiro <qignacio@amazon.com> + + * meson.build (ft2_defines): Fix builds on Windows. + +2020-12-18 Tatsuyuki Ishi <ishitatsuyuki@gmail.com> + + [autofit] Fix double division in stem darkening. + + The old code used to divide the darkening amount by em_ratio twice, + leading to unnecessarily bold stems on certain fonts with higher + units per em (e.g. Inter). This patch fixes it. + + The return value of af_loader_compute_darkening was also changed to + use 16.16 fixed point to get rid of a redundant truncation operation. + This should slightly improve the precision, although it's still + bottlenecked by the emboldening function, which uses 26.6 fixed point. + + * src/autofit/afloader.[ch] + (af_loader_compute_darkening): Return FT_Fixed. + (af_loader_embolden_glyph_in_slot): Revise calculations. + +2020-12-17 Alexei Podtelezhnikov <apodtele@gmail.com> + + * include/freetype/ftmodapi.h (FT_FACE_DRIVER_NAME): New public macro. + + The driver name is needed for `FT_Property_Set' and `FT_Property_Get'. + +2020-12-16 Chris Liddell <chris.liddell@artifex.com> + + [truetype] Fix incremental metrics (#59503). + + * src/truetype/ttgload.c (tt_get_metrics, load_truetype_glyph): + Previously, the code would populate the phantom points before + calling the `get_glyph_metrics` callback. For formats like PCL XL + format 1, class 2 downloaded fonts (where metrics are removed from + the TTF header), this causes problems when the hinting program uses + the phantom points (misplaced and distorted glyphs) due to the + metrics being unset (all zeros). + (tt_get_metrics_incr_overrides): Renamed to... + (tt_get_metrics_incremental): ... this. Updated caller + + * include/freetype/ftincrem.h: Update the documentation to make it + clearer that `get_glyph_metrics` is to retrieve metrics from a + non-standard source, but *not* for the purpose of imposing custom + metrics. + +2020-12-14 Werner Lemberg <wl@gnu.org> + + [type42] Pacify static analysis tools (#59682). + + * src/type42/t42objs.c (T42_Size_Init, T42_GlyphSlot_Init): Avoid + warnings about uninitialized variables. + +2020-12-07 Werner Lemberg <wl@gnu.org> + + * builds/unix/configure.raw: Don't set `FT_DEBUG_LOGGING`. + + All debug options are handled exclusively in `ftoption.h`. + +2020-12-07 Werner Lemberg <wl@gnu.org> + + * src/*: More fixes for using a '\n' in `FT_TRACE` and `FT_ERROR`. + +2020-12-07 Werner Lemberg <wl@gnu.org> + + */*: s/FT_LOGGING/FT_DEBUG_LOGGING/. + +2020-12-05 Werner Lemberg <wl@gnu.org> + + * builds/toplevel.mk (do-dist): Remove `submodules` directory. + +2020-12-02 Werner Lemberg <wl@gnu.org> + + * src/*: Don't use more than one '\n' in `FT_TRACE` and `FT_ERROR`. + + This ensures good logging output, with all lines having a proper + prefix (if requested). + +2020-12-02 Werner Lemberg <wl@gnu.org> + + [base] Don't close 'stderr' after logging. + + * src/base/ftdebug.c, builds/windows/ftdebug.c (ft_logging_deinit): + Fix it. + +2020-12-02 Werner Lemberg <wl@gnu.org> + + * submodules/dlg: Updated to commit 9f0c8b22. + +2020-12-02 Werner Lemberg <wl@gnu.org> + + * src/bdf/bdflib.c: Fix `-Wformat` warning. + +2020-12-02 Werner Lemberg <wl@gnu.org> + + Improve setup for 'dlg' library. + + * autogen.sh (copy_submodule_file), builds/toplevel.mk: Redirect + stderr to `/dev/null`. + + * builds/toplevel.mk: Move code block to handle 'dlg' stuff into + `check_platform` conditional. + Also fix wildcard expressions for guarding `git submodule` commands. + Also make file copying work with non-Unix platforms (untested). + +2020-12-01 Werner Lemberg <wl@gnu.org> + + [build] Use gcc (and clang) in C99 mode. + + Other compilers are unchanged. + + * builds/compiler/gcc-dev.mk, builds/compiler/gcc.mk (ANSIFLAGS): + s/-ansi/-std=c99/. + + * builds/freetype.mk (FT_CFLAGS): Remove `-std=c99`. + + * builds/unix/configure.raw: Handle C99. + Remove no longer needed test for gcc 4.6 and earlier. + +2020-12-01 Werner Lemberg <wl@gnu.org> + + [dlg] Fix compiler warnings. + + * src/dlg/dlgwrap.c: Duplicate some feature test macros from + `dlg.c`, which must come first before loading standard headers. For + example, `freetype.h` loads `stdio.h` if compiled in debug mode. + +2020-12-01 Werner Lemberg <wl@gnu.org> + + * src/type42/t42parse.c: Fix `-Wformat` warnings. + +2020-12-01 Priyesh Kumar <priyeshkkumar@gmail.com> + + [builds/unix] Check for 'pthread' library. + + * builds/unix/ax_pthread.m4: New file, taken from 'autoconf-archive' + git repository. + + * builds/unix/configure.raw: Check for 'pthread'; also check whether + it works. + +2020-12-01 Werner Lemberg <wl@gnu.org> + + [base] Implement vertical alignment of log printing. + + Based on a patch by Priyesh. + + * include/freetype/internal/fttrace.h (FT_MAX_TRACE_LEVEL_LENGTH): + New macro. + + * src/base/ftdebug.c, builds/windows/ftdebug.c (ft_log_handler): + Print logs after a fixed width to handle different lengths of + `FT_COMPONENT` entries. + Use `ft_strrchr` to check for final newline character. + +2020-11-30 Priyesh Kumar <priyeshkkumar@gmail.com> + + Update logging related documentation. + + * docs/DEBUG: Updates related to `FT_LOGGING`. + + * README.git: Updates related to logging. + +2020-11-30 Priyesh Kumar <priyeshkkumar@gmail.com> + + * src/*: Fix `-Wformat` warnings. + +2020-11-30 Priyesh Kumar <priyeshkkumar@gmail.com> + + [builds/windows] Changes to build 'dlg' with FreeType on Windows. + + We only support Visual C++ 2010 and newer. + + * builds/windows/vc2010/script.bat: New windows batch file to copy + necessary 'dlg' files from `submodules/dlg` to `src/dlg`. This file + is used as a pre-built event in Visual C++. + + * builds/windows/ftdebug.c: Synchronize with `src/base/ftdebug.c`. + + * builds/windows/vc2010/freetype.vcxproj.filters: Add + `src/dlgwrap.c`. + + * builds/windows/vc2010/freetype.vcxproj + (AdditionalIncludeDirectories): Add include files of dlg for 'Debug' + and 'Debug Static' configurations on both 'x64' and 'win32' + platforms. + (PreprocessorDefinitions): Add `FT_LOGGING` for 'Debug' and 'Debug + Static' configurations on both 'x64' and 'win32' platforms. + Add `DLG_STATIC' for 'Debug' configuration on 'x64' and 'win32' + platforms. + (DisableLanguageExtensions): We need to disable the `/Za` option + when building 'dlg' with FreeType as 'dlg' strictly follows the C99 + standard. Visual C++ produces behaves unexpectedly when + compiling a C99 file with `/Za` option enabled. + +2020-11-30 Priyesh Kumar <priyeshkkumar@gmail.com> + + [base] Add public API to change log handling function. + + * include/freetype/ftlogging.h (FT_Custom_Log_Handler): New function + typedef to store the custom callback logging function. + (FT_Set_Log_Handler, FT_Set_Default_Log_Handler): New functions to + set and reset custom log handler. + + * include/freetype/internal/ftdebug.h (custom_output_handler): New + variable to support a custom callback logging function. + (FT_Logging_Callback): A new function typedef to print log using + custom callback logging function, which is set using + `FT_Set_Log_Handler`. + (FT_Log): Use it. + + * src/base/ftdebug.c (FT_Set_Log_Handler, + FT_Set_Default_Log_Handler, FT_Logging_Callback): Add function + definitions. + +2020-11-28 Priyesh Kumar <priyeshkkumar@gmail.com> + + [base] Add public API to change the levels of tracing components. + + * include/freetype/ftlogging.h: New header file. + + * include/freetype/internal/ftdebug.h [FT_LOGGING]: Include + `ftlogging.h`. + + * src/base/ftdebug.c (ft_custom_trace_level): New variable. + (ft_debug_init): Update to support change of levels of tracing + components of FreeType at run-time. + (FT_Trace_Set_Level): New function to change the levels of tracing + components at run-time. + (FT_Trace_Set_Default_Level): New function to reset the levels of + tracing components back to default. + +2020-11-28 Priyesh Kumar <priyeshkkumar@gmail.com> + + [base] Updates to print timestamp and name of `FT_COMPONENT` in logs. + + * include/freetype/internal/ftdebug.h (FT_LOGGING_TAG, + FT_LOGGING_TAG_): New macros to resolve the value of `FT_COMPONENT' + into a string. + (ft_add_tag, ft_remove_tag): New functions to add and remove dlg tags. + + * src/base/ftdebug.c: Add new variables to control the logging of + timestamp and name of `FT_COMPONENT` along with actual logs. + (ft_add_tag, ft_remove_tag): Add function definitions. + (ft_log_handler): Updates to print timestamp and name of + `FT_COMPONENT`. + (ft_debug_init) [FT_LOGGING]: Users can now control the logging of + timestamp and name of `FT_COMPONENT` by adding tags in the + `FT2_DEBUG` environment variable. + +2020-11-27 Priyesh Kumar <priyeshkkumar@gmail.com> + + [base] Add functions and variables to print logs to a file. + + * include/freetype/internal/ftdebug.h: Added dlg's header files. + (FT_LOG): New macro to redirect trace logs to dlg's API's whenever + `FT_LOGGING' is defined. + (ft_logging_init, ft_logging_deinit): New functions to handle + initialization and uninitialization of logging related variables. + (ft_log_handler): New function to handle logs of FreeType. + + * src/base/ftdebug.c: Add necessary logging related variables. + (ft_logging_init, ft_logging_deinit, ft_log_handler): Add function + definitions. + + * src/base/ftinit.c (FT_Init_FreeType) [FT_LOGGING]: Call + `ft_logging_init`. + (FT_Done_FreeType) [FT_LOGGING]: Call `ft_logging_deinit`. + + * src/base/ftobjs.c (FT_New_Library): Call `ft_debug_init` only if + `FT_LOGGING` is not defined. + +2020-11-27 Priyesh Kumar <priyeshkkumar@gmail.com> + + [builds] Necessary changes to make 'dlg' compile. + + * autogen.sh (copy_submodule_files): New script to copy all the + necessary source and include files from `submodules/dlg` to + `src/dlg`. + + * src/dlg/dlgwrap.c: New wrapper file for `src/dlg.c`. It enables + the build of 'dlg' if the `FT_LOGGING` macro is defined. + + * src/dlg/rules.mk: New sub-Makefile. + + * builds/freetype.mk (DLG_DIR): New variable to include the + header files of the 'dlg' library. + (INCLUDES): Add `DLG_DIR`. + (FT_CFLAGS): Add `-std=c99' flag. + Include `src/dlg/rules.mk` file to build 'dlg' library. + (OBJ_S, OBJ_M): Add `DLG_OBJS_M` and `DLG_OBJS_S`. + + * builds/toplevel.mk: For builds directly from the git repository + we need to copy files from `submodule/dlg` to `src/dlg`. + + * include/freetype/config/ftoption.h, devel/ftoption.h (FT_LOGGING): + New macro to enable or disable the logging facility in FreeType. + +2020-11-27 Priyesh Kumar <priyeshkkumar@gmail.com> + + * .gitmodules: Add 'dlg' library's git repository as submodule. + +2020-12-01 Werner Lemberg <wl@gnu.org> + + * src/tools/chktrcmp.py (trace_use_pat): Update to current use. + +2020-11-20 Alexei Podtelezhnikov <apodtele@gmail.com> + + [cff,cid,type1] Demote old engine for lack of CFF2. + + * src/cff/cffobjs.c (cff_driver_init): Always default to Adobe engine. + * src/cid/cidobjs.c (cid_driver_init): Ditto. + * src/type1/t1objs.c (T1_Driver_Init): Ditto. + +2020-11-09 Werner Lemberg <wl@gnu.org> + + * src/type42/t42parse.c (t42_parse_sfnts): More tracing messages. + +2020-11-04 Werner Lemberg <wl@gnu.org> + + * meson.build: Fix .pc file generation. + + For backwards compatibility we need the libtool version, not the .so + number. + + Reported by Nikolaus. + +2020-10-28 Werner Lemberg <wl@gnu.org> + + [truetype] Minor update to forthcoming OpenType 1.8.4 standard. + + * src/truetype/ttgxvar.c (ft_var_load_item_variation_store): Limit + size of `regionCount`. + +2020-10-26 Werner Lemberg <wl@gnu.org> + + * meson.build: Fix 'harfbuzz' and 'brotli' build options (#59347). + + Without this patch, 'harfbuzz' and 'brotli' are always required. + + Patch submitted anonymously in Savannah bug report. + +2020-10-23 Ben Wagner <bungeman@google.com> + + * src/sfnt/pngshim.c (Load_SBit_Png): Fix memory leak (#59322). + + The issue is that `rows` is allocated but will not be freed in the + event that the call to `png_read_image` fails and calls `longjmp`. + 2020-10-20 Werner Lemberg <wl@gnu.org> * Version 2.10.4 released. @@ -875,7 +3624,7 @@ security or bug fixes will be provided for those versions. See https://devguide.python.org/#status-of-python-branches - + for more information. * Jamfile (RefDoc): Add `site' parameter. @@ -5050,7 +7799,7 @@ ---------------------------------------------------------------------------- -Copyright (C) 2018-2020 by +Copyright (C) 2018-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, modified, diff --git a/ChangeLog.22 b/docs/oldlogs/ChangeLog.22 index 86662f6e3..e25cafccf 100644 --- a/ChangeLog.22 +++ b/docs/oldlogs/ChangeLog.22 @@ -2821,7 +2821,7 @@ ---------------------------------------------------------------------------- -Copyright (C) 2005-2020 by +Copyright (C) 2005-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, modified, diff --git a/ChangeLog.23 b/docs/oldlogs/ChangeLog.23 index 4c80504c1..0e32ca8e0 100644 --- a/ChangeLog.23 +++ b/docs/oldlogs/ChangeLog.23 @@ -7932,7 +7932,7 @@ ---------------------------------------------------------------------------- -Copyright (C) 2006-2020 by +Copyright (C) 2006-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, modified, diff --git a/ChangeLog.24 b/docs/oldlogs/ChangeLog.24 index 17e98c484..9d06b0f54 100644 --- a/ChangeLog.24 +++ b/docs/oldlogs/ChangeLog.24 @@ -6344,7 +6344,7 @@ ---------------------------------------------------------------------------- -Copyright (C) 2010-2020 by +Copyright (C) 2010-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, modified, diff --git a/ChangeLog.25 b/docs/oldlogs/ChangeLog.25 index 6e04427e8..5d0371c49 100644 --- a/ChangeLog.25 +++ b/docs/oldlogs/ChangeLog.25 @@ -5145,7 +5145,7 @@ ---------------------------------------------------------------------------- -Copyright (C) 2013-2020 by +Copyright (C) 2013-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, modified, diff --git a/ChangeLog.26 b/docs/oldlogs/ChangeLog.26 index a4fc06063..eb87803b1 100644 --- a/ChangeLog.26 +++ b/docs/oldlogs/ChangeLog.26 @@ -5695,7 +5695,7 @@ ---------------------------------------------------------------------------- -Copyright (C) 2015-2020 by +Copyright (C) 2015-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, modified, diff --git a/ChangeLog.27 b/docs/oldlogs/ChangeLog.27 index c59ed7b80..c5fb1f9a6 100644 --- a/ChangeLog.27 +++ b/docs/oldlogs/ChangeLog.27 @@ -2090,7 +2090,7 @@ ---------------------------------------------------------------------------- -Copyright (C) 2016-2020 by +Copyright (C) 2016-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, modified, diff --git a/ChangeLog.28 b/docs/oldlogs/ChangeLog.28 index b17a751dc..d7cc2e012 100644 --- a/ChangeLog.28 +++ b/docs/oldlogs/ChangeLog.28 @@ -3120,7 +3120,7 @@ ---------------------------------------------------------------------------- -Copyright (C) 2016-2020 by +Copyright (C) 2016-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, modified, diff --git a/ChangeLog.29 b/docs/oldlogs/ChangeLog.29 index 251c056e5..e668b4f00 100644 --- a/ChangeLog.29 +++ b/docs/oldlogs/ChangeLog.29 @@ -2336,7 +2336,7 @@ ---------------------------------------------------------------------------- -Copyright (C) 2017-2020 by +Copyright (C) 2017-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, modified, diff --git a/docs/raster.txt b/docs/raster.txt index 1bf4f67d4..72d9fe280 100644 --- a/docs/raster.txt +++ b/docs/raster.txt @@ -618,7 +618,7 @@ II. Rendering Technology ------------------------------------------------------------------------ -Copyright (C) 2003-2020 by +Copyright (C) 2003-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, diff --git a/docs/release b/docs/release index 628dded2c..05f730f92 100644 --- a/docs/release +++ b/docs/release @@ -1,26 +1,23 @@ How to prepare a new release ---------------------------- -. include/freetype/freetype.h: Update FREETYPE_MAJOR, FREETYPE_MINOR, - and FREETYPE_PATCH. +. include/freetype/freetype.h: Update `FREETYPE_MAJOR`, + `FREETYPE_MINOR`, and `FREETYPE_PATCH`. . Update version numbers in all files where necessary (for example, do - a grep for both `2.3.1' and `231' for release 2.3.1). + a grep for both '2.10.4' and '2104' for release 2.10.4). -. builds/unix/configure.raw: Update `version_info'. +. builds/unix/configure.raw: Update `version_info`. . docs/CHANGES: Document differences to last release. . README: Update. -. docs/VERSIONS.TXT: Document changed `version_info'. - -. ChangeLog: Announce new release (both in the freetype2 and - freetype2-demos modules). +. docs/VERSIONS.TXT: Document changed `version_info`. . Clone the git archive to another directory with - git clone -l -s . ../freetype2.test + git clone -l -s . ../freetype.test or something like this and run @@ -35,14 +32,14 @@ How to prepare a new release in the cloned repository to test compilation with both gcc and g++. -. Test C++ compilation for freetype2-demos too (using `git clone' as +. Test C++ compilation for 'freetype-demos' too (using `git clone` as above). -. Run src/tools/chktrcmp.py and check that there are no undefined - trace_XXXX macros. +. Run `src/tools/chktrcmp.py` and check that there are no undefined + `trace_XXXX` macros. -. After pushing the new release, tag the git repositories (freetype2, - freetype2-demos) with +. After pushing the new release, tag the git repositories ('freetype', + 'freetype-demos') with git tag VER-<version> -m "" -u <committer> @@ -54,29 +51,29 @@ How to prepare a new release git clean -ndx - that the git directory is really clean (and remove extraneous files + that the git directory is really clean (and remove extraneous files if necessary). -. Say `make dist' in both the freetype2 and freetype2-demos modules - to generate the .tar.gz, .tar.xz, and .zip files. +. Say `make dist` in both the 'freetype' and 'freetype-demos' + repositories to generate the `.tar.gz`, `.tar.xz`, and `.zip` files. -. Create the doc bundles (freetype-doc-<version>.tar.gz, - freetype-doc-<version>.tar.xz, ftdoc<version>.zip). This is +. Create the doc bundles (`freetype-doc-<version>.tar.gz`, + `freetype-doc-<version>.tar.xz`, `ftdoc<version>.zip`). This is everything in <freetype-web git repository>/freetype2/docs - except the `reference' subdirectory. Do *not* use option `-l' from + except the `reference` subdirectory. Do *not* use option `-l` from zip! -. Run the following script (with updated `$VERSION', `$SAVANNAH_USER', - and $SOURCEFORGE_USER variables) to sign and upload the bundles to +. Run the following script (with updated `$VERSION`, `$SAVANNAH_USER`, + and `$SOURCEFORGE_USER` variables) to sign and upload the bundles to both Savannah and SourceForge. The signing code has been taken from - the `gnupload' script (part of the automake bundle). + the `gnupload` script (part of the 'automake' bundle). #!/bin/sh - VERSION=2.5.1 + VERSION=2.10.4 SAVANNAH_USER=wl SOURCEFORGE_USER=wlemb @@ -155,12 +152,13 @@ How to prepare a new release # EOF -. Prepare a README for SourceForge and upload it with the following - script (with updated `$VERSION' and $SOURCEFORGE_USER variables). +. Prepare a `README` file for SourceForge and upload it with the + following script (with updated `$VERSION` and `$SOURCEFORGE_USER` + variables). #!/bin/sh - VERSION=2.5.1 + VERSION=2.10.4 SOURCEFORGE_USER=wlemb ##################################################################### @@ -170,26 +168,20 @@ How to prepare a new release # EOF -. On SourceForge, tag the just uploaded `ftXXX.zip' and - `freetype-XXX.tar.xz' files as the default files to download for - `Windows' and `Others', respectively. - -. Copy the reference files (generated by `make dist') to - - <freetype-web git repository>/freetype2/docs/reference - -. Update the `freetype-web' repository. `git push' then automatically - triggers an update of the public web pages within ten minutes, due - to a cron script (on wl@freedesktop.org) that rsyncs with +. On SourceForge, tag the just uploaded `ftXXX.zip` and + `freetype-XXX.tar.xz` files as the default files to download for + 'Windows' and 'Others', respectively. - freedesktop.org://srv/freetype.freedesktop.org/www +. Trigger the automatic generation of the online API reference by + updating the `FT_VERSION` variable in file `.gitlab-ci.yml` of the + 'freetype-web' repository. -. Announce new release on freetype-announce@nongnu.org and to relevant - newsgroups. +. Announce new release on 'freetype-announce@nongnu.org' and to + relevant newsgroups. ---------------------------------------------------------------------- -Copyright (C) 2003-2020 by +Copyright (C) 2003-2021 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/config/ftconfig.h b/include/freetype/config/ftconfig.h index b464e0b78..65effcbe6 100644 --- a/include/freetype/config/ftconfig.h +++ b/include/freetype/config/ftconfig.h @@ -4,7 +4,7 @@ * * ANSI-specific configuration file (specification only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/config/ftheader.h b/include/freetype/config/ftheader.h index 28b5cc60c..e46d314e3 100644 --- a/include/freetype/config/ftheader.h +++ b/include/freetype/config/ftheader.h @@ -4,7 +4,7 @@ * * Build macros of the FreeType 2 library. * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/config/ftmodule.h b/include/freetype/config/ftmodule.h index d604afbaa..84b468ee7 100644 --- a/include/freetype/config/ftmodule.h +++ b/include/freetype/config/ftmodule.h @@ -19,12 +19,14 @@ FT_USE_MODULE( FT_Driver_ClassRec, t1cid_driver_class ) //FT_USE_MODULE( FT_Driver_ClassRec, t42_driver_class ) //FT_USE_MODULE( FT_Driver_ClassRec, winfnt_driver_class ) //FT_USE_MODULE( FT_Driver_ClassRec, pcf_driver_class ) +//FT_USE_MODULE( FT_Driver_ClassRec, bdf_driver_class ) FT_USE_MODULE( FT_Module_Class, psaux_module_class ) FT_USE_MODULE( FT_Module_Class, psnames_module_class ) FT_USE_MODULE( FT_Module_Class, pshinter_module_class ) -FT_USE_MODULE( FT_Renderer_Class, ft_raster1_renderer_class ) FT_USE_MODULE( FT_Module_Class, sfnt_module_class ) FT_USE_MODULE( FT_Renderer_Class, ft_smooth_renderer_class ) -//FT_USE_MODULE( FT_Driver_ClassRec, bdf_driver_class ) +FT_USE_MODULE( FT_Renderer_Class, ft_raster1_renderer_class ) +FT_USE_MODULE( FT_Renderer_Class, ft_sdf_renderer_class ) +FT_USE_MODULE( FT_Renderer_Class, ft_bitmap_sdf_renderer_class ) /* EOF */ diff --git a/include/freetype/config/ftoption.h b/include/freetype/config/ftoption.h index 3c7b71b56..c7e46b506 100644 --- a/include/freetype/config/ftoption.h +++ b/include/freetype/config/ftoption.h @@ -4,7 +4,7 @@ * * User-selectable configuration macros (specification only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -105,8 +105,7 @@ FT_BEGIN_HEADER * * ``` * FREETYPE_PROPERTIES=truetype:interpreter-version=35 \ - * cff:no-stem-darkening=1 \ - * autofitter:warping=1 + * cff:no-stem-darkening=1 * ``` * */ @@ -436,6 +435,23 @@ FT_BEGIN_HEADER /************************************************************************** * + * Logging + * + * Compiling FreeType in debug or trace mode makes FreeType write error + * and trace log messages to `stderr`. Enabling this macro + * automatically forces the `FT_DEBUG_LEVEL_ERROR` and + * `FT_DEBUG_LEVEL_TRACE` macros and allows FreeType to write error and + * trace log messages to a file instead of `stderr`. For writing logs + * to a file, FreeType uses an the external `dlg` library (the source + * code is in `src/dlg`). + * + * This option needs a C99 compiler. + */ +/* #define FT_DEBUG_LOGGING */ + + + /************************************************************************** + * * Autofitter debugging * * If `FT_DEBUG_AUTOFIT` is defined, FreeType provides some means to @@ -900,24 +916,6 @@ FT_BEGIN_HEADER /************************************************************************** * - * Compile 'autofit' module with warp hinting. The idea of the warping - * code is to slightly scale and shift a glyph within a single dimension so - * that as much of its segments are aligned (more or less) on the grid. To - * find out the optimal scaling and shifting value, various parameter - * combinations are tried and scored. - * - * You can switch warping on and off with the `warping` property of the - * auto-hinter (see file `ftdriver.h` for more information; by default it - * is switched off). - * - * This experimental option is not active if the rendering mode is - * `FT_RENDER_MODE_LIGHT`. - */ -#define AF_CONFIG_OPTION_USE_WARPER - - - /************************************************************************** - * * Use TrueType-like size metrics for 'light' auto-hinting. * * It is strongly recommended to avoid this option, which exists only to @@ -968,6 +966,21 @@ FT_BEGIN_HEADER /* + * The TT_SUPPORT_COLRV1 macro is defined to indicate to clients that this + * version of FreeType has support for 'COLR' v1 API. This definition is + * useful to FreeType clients that want to build in support for 'COLR' v1 + * depending on a tip-of-tree checkout before it is officially released in + * FreeType, and while the feature cannot yet be tested against using + * version macros. Don't change this macro. This may be removed once the + * feature is in a FreeType release version and version macros can be used + * to test for availability. + */ +#ifdef TT_CONFIG_OPTION_COLOR_LAYERS +#define TT_SUPPORT_COLRV1 +#endif + + + /* * Check CFF darkening parameters. The checks are the same as in function * `cff_property_set` in file `cffdrivr.c`. */ diff --git a/include/freetype/config/ftstdlib.h b/include/freetype/config/ftstdlib.h index d6091f8b3..6ee412a07 100644 --- a/include/freetype/config/ftstdlib.h +++ b/include/freetype/config/ftstdlib.h @@ -5,7 +5,7 @@ * ANSI-specific library and header configuration file (specification * only). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -43,7 +43,8 @@ * * `UINT_MAX` and `ULONG_MAX` are used to automatically compute the size of * `int` and `long` in bytes at compile-time. So far, this works for all - * platforms the library has been tested on. + * platforms the library has been tested on. We also check `ULLONG_MAX` + * to see whether we can use 64-bit `long long` later on. * * Note that on the extremely rare platforms that do not provide integer * types that are _exactly_ 16 and 32~bits wide (e.g., some old Crays where @@ -66,6 +67,15 @@ #define FT_LONG_MIN LONG_MIN #define FT_LONG_MAX LONG_MAX #define FT_ULONG_MAX ULONG_MAX +#ifdef LLONG_MAX +#define FT_LLONG_MAX LLONG_MAX +#endif +#ifdef LLONG_MIN +#define FT_LLONG_MIN LLONG_MIN +#endif +#ifdef ULLONG_MAX +#define FT_ULLONG_MAX ULLONG_MAX +#endif /************************************************************************** diff --git a/include/freetype/config/integer-types.h b/include/freetype/config/integer-types.h index a0ca0c95e..5ef09f197 100644 --- a/include/freetype/config/integer-types.h +++ b/include/freetype/config/integer-types.h @@ -4,7 +4,7 @@ * * FreeType integer types definitions. * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -60,6 +60,18 @@ #endif /* !defined(FT_SIZEOF_LONG) */ +#ifndef FT_SIZEOF_LONG_LONG + + /* The size of a `long long` type if available */ +#if defined( FT_ULLONG_MAX ) && FT_ULLONG_MAX >= 0xFFFFFFFFFFFFFFFFULL +#define FT_SIZEOF_LONG_LONG ( 64 / FT_CHAR_BIT ) +#else +#define FT_SIZEOF_LONG_LONG 0 +#endif + +#endif /* !defined(FT_SIZEOF_LONG_LONG) */ + + /************************************************************************** * * @section: @@ -174,15 +186,17 @@ #endif - /* determine whether we have a 64-bit `int` type for platforms without */ - /* Autoconf */ + /* determine whether we have a 64-bit integer type */ #if FT_SIZEOF_LONG == ( 64 / FT_CHAR_BIT ) - /* `FT_LONG64` must be defined if a 64-bit type is available */ -#define FT_LONG64 #define FT_INT64 long #define FT_UINT64 unsigned long +#elif FT_SIZEOF_LONG_LONG >= ( 64 / FT_CHAR_BIT ) + +#define FT_INT64 long long int +#define FT_UINT64 unsigned long long int + /************************************************************************** * * A 64-bit data type may create compilation problems if you compile in @@ -192,16 +206,9 @@ */ #elif !defined( __STDC__ ) || defined( FT_CONFIG_OPTION_FORCE_INT64 ) -#if defined( __STDC_VERSION__ ) && __STDC_VERSION__ >= 199901L - -#define FT_LONG64 -#define FT_INT64 long long int -#define FT_UINT64 unsigned long long int - -#elif defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */ +#if defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */ /* this compiler provides the `__int64` type */ -#define FT_LONG64 #define FT_INT64 __int64 #define FT_UINT64 unsigned __int64 @@ -211,7 +218,6 @@ /* to test the compiler version. */ /* this compiler provides the `__int64` type */ -#define FT_LONG64 #define FT_INT64 __int64 #define FT_UINT64 unsigned __int64 @@ -221,22 +227,20 @@ #elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */ -#define FT_LONG64 #define FT_INT64 long long int #define FT_UINT64 unsigned long long int #elif defined( __GNUC__ ) /* GCC provides the `long long` type */ -#define FT_LONG64 #define FT_INT64 long long int #define FT_UINT64 unsigned long long int -#endif /* __STDC_VERSION__ >= 199901L */ +#endif /* !__STDC__ */ #endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */ -#ifdef FT_LONG64 +#ifdef FT_INT64 typedef FT_INT64 FT_Int64; typedef FT_UINT64 FT_UInt64; #endif diff --git a/include/freetype/config/mac-support.h b/include/freetype/config/mac-support.h index 94867088e..ef58d8b3f 100644 --- a/include/freetype/config/mac-support.h +++ b/include/freetype/config/mac-support.h @@ -4,7 +4,7 @@ * * Mac/OS X support configuration header. * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/config/public-macros.h b/include/freetype/config/public-macros.h index 6aa673e80..9fbb3274a 100644 --- a/include/freetype/config/public-macros.h +++ b/include/freetype/config/public-macros.h @@ -4,7 +4,7 @@ * * Define a set of compiler macros used in public FreeType headers. * - * Copyright (C) 2020 by + * Copyright (C) 2020-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -103,6 +103,7 @@ FT_BEGIN_HEADER */ #define FT_EXPORT( x ) FT_PUBLIC_FUNCTION_ATTRIBUTE extern x + /* * `FT_UNUSED` indicates that a given parameter is not used -- this is * only used to get rid of unpleasant compiler warnings. @@ -115,6 +116,23 @@ FT_BEGIN_HEADER #endif + /* + * Support for casts in both C and C++. + */ +#ifdef __cplusplus +#define FT_STATIC_CAST( type, var ) static_cast<type>(var) +#define FT_REINTERPRET_CAST( type, var ) reinterpret_cast<type>(var) + +#define FT_STATIC_BYTE_CAST( type, var ) \ + static_cast<type>( static_cast<unsigned char>( var ) ) +#else +#define FT_STATIC_CAST( type, var ) (type)(var) +#define FT_REINTERPRET_CAST( type, var ) (type)(var) + +#define FT_STATIC_BYTE_CAST( type, var ) (type)(unsigned char)(var) +#endif + + FT_END_HEADER #endif /* FREETYPE_CONFIG_PUBLIC_MACROS_H_ */ diff --git a/include/freetype/freetype.h b/include/freetype/freetype.h index be191f5aa..f6c66b94a 100644 --- a/include/freetype/freetype.h +++ b/include/freetype/freetype.h @@ -4,7 +4,7 @@ * * FreeType high-level API and common types (specification only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -33,6 +33,34 @@ FT_BEGIN_HEADER /************************************************************************** * * @section: + * preamble + * + * @title: + * Preamble + * + * @abstract: + * What FreeType is and isn't + * + * @description: + * FreeType is a library that provides access to glyphs in font files. It + * scales the glyph images and their metrics to a requested size, and it + * rasterizes the glyph images to produce pixel or subpixel alpha coverage + * bitmaps. + * + * Note that FreeType is _not_ a text layout engine. You have to use + * higher-level libraries like HarfBuzz, Pango, or ICU for that. + * + * Note also that FreeType does _not_ perform alpha blending or + * compositing the resulting bitmaps or pixmaps by itself. Use your + * favourite graphics library (for example, Cairo or Skia) to further + * process FreeType's output. + * + */ + + + /************************************************************************** + * + * @section: * header_inclusion * * @title: @@ -176,6 +204,7 @@ FT_BEGIN_HEADER * FT_Size_RequestRec * FT_Size_Request * FT_Set_Transform + * FT_Get_Transform * FT_Load_Glyph * FT_Get_Char_Index * FT_Get_First_Char @@ -587,11 +616,12 @@ FT_BEGIN_HEADER */ #ifndef FT_ENC_TAG -#define FT_ENC_TAG( value, a, b, c, d ) \ - value = ( ( (FT_UInt32)(a) << 24 ) | \ - ( (FT_UInt32)(b) << 16 ) | \ - ( (FT_UInt32)(c) << 8 ) | \ - (FT_UInt32)(d) ) + +#define FT_ENC_TAG( value, a, b, c, d ) \ + value = ( ( FT_STATIC_BYTE_CAST( FT_UInt32, a ) << 24 ) | \ + ( FT_STATIC_BYTE_CAST( FT_UInt32, b ) << 16 ) | \ + ( FT_STATIC_BYTE_CAST( FT_UInt32, c ) << 8 ) | \ + FT_STATIC_BYTE_CAST( FT_UInt32, d ) ) #endif /* FT_ENC_TAG */ @@ -701,11 +731,16 @@ FT_BEGIN_HEADER * Same as FT_ENCODING_JOHAB. Deprecated. * * @note: - * By default, FreeType enables a Unicode charmap and tags it with - * `FT_ENCODING_UNICODE` when it is either provided or can be generated - * from PostScript glyph name dictionaries in the font file. All other - * encodings are considered legacy and tagged only if explicitly defined - * in the font file. Otherwise, `FT_ENCODING_NONE` is used. + * When loading a font, FreeType makes a Unicode charmap active if + * possible (either if the font provides such a charmap, or if FreeType + * can synthesize one from PostScript glyph name dictionaries; in either + * case, the charmap is tagged with `FT_ENCODING_UNICODE`). If such a + * charmap is synthesized, it is placed at the first position of the + * charmap array. + * + * All other encodings are considered legacy and tagged only if + * explicitly defined in the font file. Otherwise, `FT_ENCODING_NONE` is + * used. * * `FT_ENCODING_NONE` is set by the BDF and PCF drivers if the charmap is * neither Unicode nor ISO-8859-1 (otherwise it is set to @@ -2065,7 +2100,8 @@ FT_BEGIN_HEADER * The size in bytes of the file in memory. * * pathname :: - * A pointer to an 8-bit file pathname. The pointer is not owned by + * A pointer to an 8-bit file pathname, which must be a C~string (i.e., + * no null bytes except at the very end). The pointer is not owned by * FreeType. * * stream :: @@ -2084,8 +2120,7 @@ FT_BEGIN_HEADER * Extra parameters passed to the font driver when opening a new face. * * @note: - * The stream type is determined by the contents of `flags` that are - * tested in the following order by @FT_Open_Face: + * The stream type is determined by the contents of `flags`: * * If the @FT_OPEN_MEMORY bit is set, assume that this is a memory file * of `memory_size` bytes, located at `memory_address`. The data are not @@ -2098,6 +2133,9 @@ FT_BEGIN_HEADER * Otherwise, if the @FT_OPEN_PATHNAME bit is set, assume that this is a * normal file and use `pathname` to open it. * + * If none of the above bits are set or if multiple are set at the same + * time, the flags are invalid and @FT_Open_Face fails. + * * If the @FT_OPEN_DRIVER bit is set, @FT_Open_Face only tries to open * the file with the driver whose handler is in `driver`. * @@ -2150,6 +2188,13 @@ FT_BEGIN_HEADER * FreeType error code. 0~means success. * * @note: + * The `pathname` string should be recognizable as such by a standard + * `fopen` call on your system; in particular, this means that `pathname` + * must not contain null bytes. If that is not sufficient to address all + * file name possibilities (for example, to handle wide character file + * names on Windows in UTF-16 encoding) you might use @FT_Open_Face to + * pass a memory array or a stream object instead. + * * Use @FT_Done_Face to destroy the created @FT_Face object (along with * its slot and sizes). */ @@ -2270,6 +2315,10 @@ FT_BEGIN_HEADER * See the discussion of reference counters in the description of * @FT_Reference_Face. * + * If `FT_OPEN_STREAM` is set in `args->flags`, the stream in + * `args->stream` is automatically closed before this function returns + * any error (including `FT_Err_Invalid_Argument`). + * * @example: * To loop over all faces, use code similar to the following snippet * (omitting the error handling). @@ -2428,6 +2477,7 @@ FT_BEGIN_HEADER * * @since: * 2.4.2 + * */ FT_EXPORT( FT_Error ) FT_Reference_Face( FT_Face face ); @@ -2874,7 +2924,7 @@ FT_BEGIN_HEADER * * If the font is 'tricky' (see @FT_FACE_FLAG_TRICKY for more), using * `FT_LOAD_NO_SCALE` usually yields meaningless outlines because the - * subglyphs must be scaled and positioned with hinting instructions. + * subglyphs must be scaled and positioned with hinting instructions. * This can be solved by loading the font without `FT_LOAD_NO_SCALE` * and setting the character size to `font->units_per_EM`. * @@ -3132,7 +3182,7 @@ FT_BEGIN_HEADER * necessary to empty the cache after a mode switch to avoid false hits. * */ -#define FT_LOAD_TARGET_( x ) ( (FT_Int32)( (x) & 15 ) << 16 ) +#define FT_LOAD_TARGET_( x ) ( FT_STATIC_CAST( FT_Int32, (x) & 15 ) << 16 ) #define FT_LOAD_TARGET_NORMAL FT_LOAD_TARGET_( FT_RENDER_MODE_NORMAL ) #define FT_LOAD_TARGET_LIGHT FT_LOAD_TARGET_( FT_RENDER_MODE_LIGHT ) @@ -3151,7 +3201,8 @@ FT_BEGIN_HEADER * @FT_LOAD_TARGET_XXX value. * */ -#define FT_LOAD_TARGET_MODE( x ) ( (FT_Render_Mode)( ( (x) >> 16 ) & 15 ) ) +#define FT_LOAD_TARGET_MODE( x ) \ + FT_STATIC_CAST( FT_Render_Mode, ( (x) >> 16 ) & 15 ) /************************************************************************** @@ -3172,11 +3223,12 @@ FT_BEGIN_HEADER * A pointer to the transformation's 2x2 matrix. Use `NULL` for the * identity matrix. * delta :: - * A pointer to the translation vector. Use `NULL` for the null vector. + * A pointer to the translation vector. Use `NULL` for the null + * vector. * * @note: * This function is provided as a convenience, but keep in mind that - * @FT_Matrix coefficients are only 16.16 fixed point values, which can + * @FT_Matrix coefficients are only 16.16 fixed-point values, which can * limit the accuracy of the results. Using floating-point computations * to perform the transform directly in client code instead will always * yield better numbers. @@ -3197,6 +3249,39 @@ FT_BEGIN_HEADER /************************************************************************** * + * @function: + * FT_Get_Transform + * + * @description: + * Return the transformation that is applied to glyph images when they + * are loaded into a glyph slot through @FT_Load_Glyph. See + * @FT_Set_Transform for more details. + * + * @input: + * face :: + * A handle to the source face object. + * + * @output: + * matrix :: + * A pointer to a transformation's 2x2 matrix. Set this to NULL if you + * are not interested in the value. + * + * delta :: + * A pointer a translation vector. Set this to NULL if you are not + * interested in the value. + * + * @since: + * 2.11 + * + */ + FT_EXPORT( void ) + FT_Get_Transform( FT_Face face, + FT_Matrix* matrix, + FT_Vector* delta ); + + + /************************************************************************** + * * @enum: * FT_Render_Mode * @@ -3213,6 +3298,10 @@ FT_BEGIN_HEADER * correction to correctly render non-monochrome glyph bitmaps onto a * surface; see @FT_Render_Glyph. * + * The @FT_RENDER_MODE_SDF is a special render mode that uses up to 256 + * distance values, indicating the signed distance from the grid position + * to the nearest outline. + * * @values: * FT_RENDER_MODE_NORMAL :: * Default render mode; it corresponds to 8-bit anti-aliased bitmaps. @@ -3238,11 +3327,49 @@ FT_BEGIN_HEADER * bitmaps that are 3~times the height of the original glyph outline in * pixels and use the @FT_PIXEL_MODE_LCD_V mode. * + * FT_RENDER_MODE_SDF :: + * This mode corresponds to 8-bit, single-channel signed distance field + * (SDF) bitmaps. Each pixel in the SDF grid is the value from the + * pixel's position to the nearest glyph's outline. The distances are + * calculated from the center of the pixel and are positive if they are + * filled by the outline (i.e., inside the outline) and negative + * otherwise. Check the note below on how to convert the output values + * to usable data. + * * @note: * The selected render mode only affects vector glyphs of a font. * Embedded bitmaps often have a different pixel mode like * @FT_PIXEL_MODE_MONO. You can use @FT_Bitmap_Convert to transform them * into 8-bit pixmaps. + * + * For @FT_RENDER_MODE_SDF the output bitmap buffer contains normalized + * distances that are packed into unsigned 8-bit values. To get pixel + * values in floating point representation use the following pseudo-C + * code for the conversion. + * + * ``` + * // Load glyph and render using FT_RENDER_MODE_SDF, + * // then use the output buffer as follows. + * + * ... + * FT_Byte buffer = glyph->bitmap->buffer; + * + * + * for pixel in buffer + * { + * // `sd` is the signed distance and `spread` is the current spread; + * // the default spread is 2 and can be changed. + * + * float sd = (float)pixel - 128.0f; + * + * + * // Convert to pixel values. + * sd = ( sd / 128.0f ) * spread; + * + * // Store `sd` in a buffer or use as required. + * } + * + * ``` */ typedef enum FT_Render_Mode_ { @@ -3251,6 +3378,7 @@ FT_BEGIN_HEADER FT_RENDER_MODE_MONO, FT_RENDER_MODE_LCD, FT_RENDER_MODE_LCD_V, + FT_RENDER_MODE_SDF, FT_RENDER_MODE_MAX @@ -3338,7 +3466,8 @@ FT_BEGIN_HEADER * * which is known as the OVER operator. * - * To correctly composite an antialiased pixel of a glyph onto a surface, + * To correctly composite an anti-aliased pixel of a glyph onto a + * surface, * * 1. take the foreground and background colors (e.g., in sRGB space) * and apply gamma to get them in a linear space, @@ -4018,168 +4147,6 @@ FT_BEGIN_HEADER /************************************************************************** * * @section: - * layer_management - * - * @title: - * Glyph Layer Management - * - * @abstract: - * Retrieving and manipulating OpenType's 'COLR' table data. - * - * @description: - * The functions described here allow access of colored glyph layer data - * in OpenType's 'COLR' tables. - */ - - - /************************************************************************** - * - * @struct: - * FT_LayerIterator - * - * @description: - * This iterator object is needed for @FT_Get_Color_Glyph_Layer. - * - * @fields: - * num_layers :: - * The number of glyph layers for the requested glyph index. Will be - * set by @FT_Get_Color_Glyph_Layer. - * - * layer :: - * The current layer. Will be set by @FT_Get_Color_Glyph_Layer. - * - * p :: - * An opaque pointer into 'COLR' table data. The caller must set this - * to `NULL` before the first call of @FT_Get_Color_Glyph_Layer. - */ - typedef struct FT_LayerIterator_ - { - FT_UInt num_layers; - FT_UInt layer; - FT_Byte* p; - - } FT_LayerIterator; - - - /************************************************************************** - * - * @function: - * FT_Get_Color_Glyph_Layer - * - * @description: - * This is an interface to the 'COLR' table in OpenType fonts to - * iteratively retrieve the colored glyph layers associated with the - * current glyph slot. - * - * https://docs.microsoft.com/en-us/typography/opentype/spec/colr - * - * The glyph layer data for a given glyph index, if present, provides an - * alternative, multi-color glyph representation: Instead of rendering - * the outline or bitmap with the given glyph index, glyphs with the - * indices and colors returned by this function are rendered layer by - * layer. - * - * The returned elements are ordered in the z~direction from bottom to - * top; the 'n'th element should be rendered with the associated palette - * color and blended on top of the already rendered layers (elements 0, - * 1, ..., n-1). - * - * @input: - * face :: - * A handle to the parent face object. - * - * base_glyph :: - * The glyph index the colored glyph layers are associated with. - * - * @inout: - * iterator :: - * An @FT_LayerIterator object. For the first call you should set - * `iterator->p` to `NULL`. For all following calls, simply use the - * same object again. - * - * @output: - * aglyph_index :: - * The glyph index of the current layer. - * - * acolor_index :: - * The color index into the font face's color palette of the current - * layer. The value 0xFFFF is special; it doesn't reference a palette - * entry but indicates that the text foreground color should be used - * instead (to be set up by the application outside of FreeType). - * - * The color palette can be retrieved with @FT_Palette_Select. - * - * @return: - * Value~1 if everything is OK. If there are no more layers (or if there - * are no layers at all), value~0 gets returned. In case of an error, - * value~0 is returned also. - * - * @note: - * This function is necessary if you want to handle glyph layers by - * yourself. In particular, functions that operate with @FT_GlyphRec - * objects (like @FT_Get_Glyph or @FT_Glyph_To_Bitmap) don't have access - * to this information. - * - * Note that @FT_Render_Glyph is able to handle colored glyph layers - * automatically if the @FT_LOAD_COLOR flag is passed to a previous call - * to @FT_Load_Glyph. [This is an experimental feature.] - * - * @example: - * ``` - * FT_Color* palette; - * FT_LayerIterator iterator; - * - * FT_Bool have_layers; - * FT_UInt layer_glyph_index; - * FT_UInt layer_color_index; - * - * - * error = FT_Palette_Select( face, palette_index, &palette ); - * if ( error ) - * palette = NULL; - * - * iterator.p = NULL; - * have_layers = FT_Get_Color_Glyph_Layer( face, - * glyph_index, - * &layer_glyph_index, - * &layer_color_index, - * &iterator ); - * - * if ( palette && have_layers ) - * { - * do - * { - * FT_Color layer_color; - * - * - * if ( layer_color_index == 0xFFFF ) - * layer_color = text_foreground_color; - * else - * layer_color = palette[layer_color_index]; - * - * // Load and render glyph `layer_glyph_index', then - * // blend resulting pixmap (using color `layer_color') - * // with previously created pixmaps. - * - * } while ( FT_Get_Color_Glyph_Layer( face, - * glyph_index, - * &layer_glyph_index, - * &layer_color_index, - * &iterator ) ); - * } - * ``` - */ - FT_EXPORT( FT_Bool ) - FT_Get_Color_Glyph_Layer( FT_Face face, - FT_UInt base_glyph, - FT_UInt *aglyph_index, - FT_UInt *acolor_index, - FT_LayerIterator* iterator ); - - - /************************************************************************** - * - * @section: * base_interface * */ @@ -4267,6 +4234,7 @@ FT_BEGIN_HEADER * * @since: * 2.3.8 + * */ FT_EXPORT( FT_UShort ) FT_Get_FSType_Flags( FT_Face face ); @@ -4360,6 +4328,7 @@ FT_BEGIN_HEADER * * @since: * 2.3.6 + * */ FT_EXPORT( FT_UInt ) FT_Face_GetCharVariantIndex( FT_Face face, @@ -4396,6 +4365,7 @@ FT_BEGIN_HEADER * * @since: * 2.3.6 + * */ FT_EXPORT( FT_Int ) FT_Face_GetCharVariantIsDefault( FT_Face face, @@ -4427,6 +4397,7 @@ FT_BEGIN_HEADER * * @since: * 2.3.6 + * */ FT_EXPORT( FT_UInt32* ) FT_Face_GetVariantSelectors( FT_Face face ); @@ -4460,6 +4431,7 @@ FT_BEGIN_HEADER * * @since: * 2.3.6 + * */ FT_EXPORT( FT_UInt32* ) FT_Face_GetVariantsOfChar( FT_Face face, @@ -4494,6 +4466,7 @@ FT_BEGIN_HEADER * * @since: * 2.3.6 + * */ FT_EXPORT( FT_UInt32* ) FT_Face_GetCharsOfVariant( FT_Face face, @@ -4766,8 +4739,8 @@ FT_BEGIN_HEADER * */ #define FREETYPE_MAJOR 2 -#define FREETYPE_MINOR 10 -#define FREETYPE_PATCH 4 +#define FREETYPE_MINOR 11 +#define FREETYPE_PATCH 1 /************************************************************************** @@ -4829,6 +4802,7 @@ FT_BEGIN_HEADER * * @since: * 2.3.5 + * */ FT_EXPORT( FT_Bool ) FT_Face_CheckTrueTypePatents( FT_Face face ); @@ -4857,6 +4831,7 @@ FT_BEGIN_HEADER * * @since: * 2.3.5 + * */ FT_EXPORT( FT_Bool ) FT_Face_SetUnpatentedHinting( FT_Face face, diff --git a/include/freetype/ftadvanc.h b/include/freetype/ftadvanc.h index f166bc6f9..3a13bd3de 100644 --- a/include/freetype/ftadvanc.h +++ b/include/freetype/ftadvanc.h @@ -4,7 +4,7 @@ * * Quick computation of advance widths (specification only). * - * Copyright (C) 2008-2020 by + * Copyright (C) 2008-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftbbox.h b/include/freetype/ftbbox.h index fda1ad94a..713aedb15 100644 --- a/include/freetype/ftbbox.h +++ b/include/freetype/ftbbox.h @@ -4,7 +4,7 @@ * * FreeType exact bbox computation (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftbdf.h b/include/freetype/ftbdf.h index 2e1daeeaa..c42850640 100644 --- a/include/freetype/ftbdf.h +++ b/include/freetype/ftbdf.h @@ -4,7 +4,7 @@ * * FreeType API for accessing BDF-specific strings (specification). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftbitmap.h b/include/freetype/ftbitmap.h index 282c22e1c..11c45b0ed 100644 --- a/include/freetype/ftbitmap.h +++ b/include/freetype/ftbitmap.h @@ -4,7 +4,7 @@ * * FreeType utility functions for bitmaps (specification). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftbzip2.h b/include/freetype/ftbzip2.h index eb6a5a55d..afd2a82af 100644 --- a/include/freetype/ftbzip2.h +++ b/include/freetype/ftbzip2.h @@ -4,7 +4,7 @@ * * Bzip2-compressed stream support. * - * Copyright (C) 2010-2020 by + * Copyright (C) 2010-2021 by * Joel Klinghed. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftcache.h b/include/freetype/ftcache.h index 604727520..70399a328 100644 --- a/include/freetype/ftcache.h +++ b/include/freetype/ftcache.h @@ -4,7 +4,7 @@ * * FreeType Cache subsystem (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -86,8 +86,8 @@ FT_BEGIN_HEADER * later use @FTC_CMapCache_Lookup to perform the equivalent of * @FT_Get_Char_Index, only much faster. * - * If you want to use the @FT_Glyph caching, call @FTC_ImageCache, then - * later use @FTC_ImageCache_Lookup to retrieve the corresponding + * If you want to use the @FT_Glyph caching, call @FTC_ImageCache_New, + * then later use @FTC_ImageCache_Lookup to retrieve the corresponding * @FT_Glyph objects from the cache. * * If you need lots of small bitmaps, it is much more memory efficient to diff --git a/include/freetype/ftchapters.h b/include/freetype/ftchapters.h index 2ee26973e..4f32cc88c 100644 --- a/include/freetype/ftchapters.h +++ b/include/freetype/ftchapters.h @@ -15,6 +15,7 @@ * General Remarks * * @sections: + * preamble * header_inclusion * user_allocation * @@ -123,6 +124,7 @@ * gzip * lzw * bzip2 + * debugging_apis * */ diff --git a/include/freetype/ftcid.h b/include/freetype/ftcid.h index a29fb3330..9a415bd98 100644 --- a/include/freetype/ftcid.h +++ b/include/freetype/ftcid.h @@ -4,7 +4,7 @@ * * FreeType API for accessing CID font information (specification). * - * Copyright (C) 2007-2020 by + * Copyright (C) 2007-2021 by * Dereg Clegg and Michael Toftdal. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftcolor.h b/include/freetype/ftcolor.h index ecc6485e5..08dbac0cc 100644 --- a/include/freetype/ftcolor.h +++ b/include/freetype/ftcolor.h @@ -4,7 +4,7 @@ * * FreeType's glyph color management (specification). * - * Copyright (C) 2018-2020 by + * Copyright (C) 2018-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -302,6 +302,1411 @@ FT_BEGIN_HEADER FT_Palette_Set_Foreground_Color( FT_Face face, FT_Color foreground_color ); + + /************************************************************************** + * + * @section: + * layer_management + * + * @title: + * Glyph Layer Management + * + * @abstract: + * Retrieving and manipulating OpenType's 'COLR' table data. + * + * @description: + * The functions described here allow access of colored glyph layer data + * in OpenType's 'COLR' tables. + */ + + + /************************************************************************** + * + * @struct: + * FT_LayerIterator + * + * @description: + * This iterator object is needed for @FT_Get_Color_Glyph_Layer. + * + * @fields: + * num_layers :: + * The number of glyph layers for the requested glyph index. Will be + * set by @FT_Get_Color_Glyph_Layer. + * + * layer :: + * The current layer. Will be set by @FT_Get_Color_Glyph_Layer. + * + * p :: + * An opaque pointer into 'COLR' table data. The caller must set this + * to `NULL` before the first call of @FT_Get_Color_Glyph_Layer. + */ + typedef struct FT_LayerIterator_ + { + FT_UInt num_layers; + FT_UInt layer; + FT_Byte* p; + + } FT_LayerIterator; + + + /************************************************************************** + * + * @function: + * FT_Get_Color_Glyph_Layer + * + * @description: + * This is an interface to the 'COLR' table in OpenType fonts to + * iteratively retrieve the colored glyph layers associated with the + * current glyph slot. + * + * https://docs.microsoft.com/en-us/typography/opentype/spec/colr + * + * The glyph layer data for a given glyph index, if present, provides an + * alternative, multi-color glyph representation: Instead of rendering + * the outline or bitmap with the given glyph index, glyphs with the + * indices and colors returned by this function are rendered layer by + * layer. + * + * The returned elements are ordered in the z~direction from bottom to + * top; the 'n'th element should be rendered with the associated palette + * color and blended on top of the already rendered layers (elements 0, + * 1, ..., n-1). + * + * @input: + * face :: + * A handle to the parent face object. + * + * base_glyph :: + * The glyph index the colored glyph layers are associated with. + * + * @inout: + * iterator :: + * An @FT_LayerIterator object. For the first call you should set + * `iterator->p` to `NULL`. For all following calls, simply use the + * same object again. + * + * @output: + * aglyph_index :: + * The glyph index of the current layer. + * + * acolor_index :: + * The color index into the font face's color palette of the current + * layer. The value 0xFFFF is special; it doesn't reference a palette + * entry but indicates that the text foreground color should be used + * instead (to be set up by the application outside of FreeType). + * + * The color palette can be retrieved with @FT_Palette_Select. + * + * @return: + * Value~1 if everything is OK. If there are no more layers (or if there + * are no layers at all), value~0 gets returned. In case of an error, + * value~0 is returned also. + * + * @note: + * This function is necessary if you want to handle glyph layers by + * yourself. In particular, functions that operate with @FT_GlyphRec + * objects (like @FT_Get_Glyph or @FT_Glyph_To_Bitmap) don't have access + * to this information. + * + * Note that @FT_Render_Glyph is able to handle colored glyph layers + * automatically if the @FT_LOAD_COLOR flag is passed to a previous call + * to @FT_Load_Glyph. [This is an experimental feature.] + * + * @example: + * ``` + * FT_Color* palette; + * FT_LayerIterator iterator; + * + * FT_Bool have_layers; + * FT_UInt layer_glyph_index; + * FT_UInt layer_color_index; + * + * + * error = FT_Palette_Select( face, palette_index, &palette ); + * if ( error ) + * palette = NULL; + * + * iterator.p = NULL; + * have_layers = FT_Get_Color_Glyph_Layer( face, + * glyph_index, + * &layer_glyph_index, + * &layer_color_index, + * &iterator ); + * + * if ( palette && have_layers ) + * { + * do + * { + * FT_Color layer_color; + * + * + * if ( layer_color_index == 0xFFFF ) + * layer_color = text_foreground_color; + * else + * layer_color = palette[layer_color_index]; + * + * // Load and render glyph `layer_glyph_index', then + * // blend resulting pixmap (using color `layer_color') + * // with previously created pixmaps. + * + * } while ( FT_Get_Color_Glyph_Layer( face, + * glyph_index, + * &layer_glyph_index, + * &layer_color_index, + * &iterator ) ); + * } + * ``` + */ + FT_EXPORT( FT_Bool ) + FT_Get_Color_Glyph_Layer( FT_Face face, + FT_UInt base_glyph, + FT_UInt *aglyph_index, + FT_UInt *acolor_index, + FT_LayerIterator* iterator ); + + + /************************************************************************** + * + * @enum: + * FT_PaintFormat + * + * @description: + * Enumeration describing the different paint format types of the v1 + * extensions to the 'COLR' table, see + * 'https://github.com/googlefonts/colr-gradients-spec'. + * + * The enumeration values losely correspond with the format numbers of + * the specification: FreeType always returns a fully specified 'Paint' + * structure for the 'Transform', 'Translate', 'Scale', 'Rotate', and + * 'Skew' table types even though the specification has different formats + * depending on whether or not a center is specified, whether the scale + * is uniform in x and y~direction or not, etc. Also, only non-variable + * format identifiers are listed in this enumeration; as soon as support + * for variable 'COLR' v1 fonts is implemented, interpolation is + * performed dependent on axis coordinates, which are configured on the + * @FT_Face through @FT_Set_Var_Design_Coordinates. This implies that + * always static, readily interpolated values are returned in the 'Paint' + * structures. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef enum FT_PaintFormat_ + { + FT_COLR_PAINTFORMAT_COLR_LAYERS = 1, + FT_COLR_PAINTFORMAT_SOLID = 2, + FT_COLR_PAINTFORMAT_LINEAR_GRADIENT = 4, + FT_COLR_PAINTFORMAT_RADIAL_GRADIENT = 6, + FT_COLR_PAINTFORMAT_SWEEP_GRADIENT = 8, + FT_COLR_PAINTFORMAT_GLYPH = 10, + FT_COLR_PAINTFORMAT_COLR_GLYPH = 11, + FT_COLR_PAINTFORMAT_TRANSFORM = 12, + FT_COLR_PAINTFORMAT_TRANSLATE = 14, + FT_COLR_PAINTFORMAT_SCALE = 16, + FT_COLR_PAINTFORMAT_ROTATE = 24, + FT_COLR_PAINTFORMAT_SKEW = 28, + FT_COLR_PAINTFORMAT_COMPOSITE = 32, + FT_COLR_PAINT_FORMAT_MAX = 33, + FT_COLR_PAINTFORMAT_UNSUPPORTED = 255 + + } FT_PaintFormat; + + + /************************************************************************** + * + * @struct: + * FT_ColorStopIterator + * + * @description: + * This iterator object is needed for @FT_Get_Colorline_Stops. It keeps + * state while iterating over the stops of an @FT_ColorLine, + * representing the `ColorLine` struct of the v1 extensions to 'COLR', + * see 'https://github.com/googlefonts/colr-gradients-spec'. + * + * @fields: + * num_color_stops :: + * The number of color stops for the requested glyph index. Set by + * @FT_Get_Colorline_Stops. + * + * current_color_stop :: + * The current color stop. Set by @FT_Get_Colorline_Stops. + * + * p :: + * An opaque pointer into 'COLR' table data. The caller must set this + * to `NULL` before the first call of @FT_Get_Colorline_Stops. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef struct FT_ColorStopIterator_ + { + FT_UInt num_color_stops; + FT_UInt current_color_stop; + + FT_Byte* p; + + } FT_ColorStopIterator; + + + /************************************************************************** + * + * @struct: + * FT_ColorIndex + * + * @description: + * A structure representing a `ColorIndex` value of the 'COLR' v1 + * extensions, see 'https://github.com/googlefonts/colr-gradients-spec'. + * + * @fields: + * palette_index :: + * The palette index into a 'CPAL' palette. + * + * alpha :: + * Alpha transparency value multiplied with the value from 'CPAL'. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef struct FT_ColorIndex_ + { + FT_UInt16 palette_index; + FT_F2Dot14 alpha; + + } FT_ColorIndex; + + + /************************************************************************** + * + * @struct: + * FT_ColorStop + * + * @description: + * A structure representing a `ColorStop` value of the 'COLR' v1 + * extensions, see 'https://github.com/googlefonts/colr-gradients-spec'. + * + * @fields: + * stop_offset :: + * The stop offset between 0 and 1 along the gradient. + * + * color :: + * The color information for this stop, see @FT_ColorIndex. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef struct FT_ColorStop_ + { + FT_F2Dot14 stop_offset; + FT_ColorIndex color; + + } FT_ColorStop; + + + /************************************************************************** + * + * @enum: + * FT_PaintExtend + * + * @description: + * An enumeration representing the 'Extend' mode of the 'COLR' v1 + * extensions, see 'https://github.com/googlefonts/colr-gradients-spec'. + * It describes how the gradient fill continues at the other boundaries. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef enum FT_PaintExtend_ + { + FT_COLR_PAINT_EXTEND_PAD = 0, + FT_COLR_PAINT_EXTEND_REPEAT = 1, + FT_COLR_PAINT_EXTEND_REFLECT = 2 + + } FT_PaintExtend; + + + /************************************************************************** + * + * @struct: + * FT_ColorLine + * + * @description: + * A structure representing a `ColorLine` value of the 'COLR' v1 + * extensions, see 'https://github.com/googlefonts/colr-gradients-spec'. + * It describes a list of color stops along the defined gradient. + * + * @fields: + * extend :: + * The extend mode at the outer boundaries, see @FT_PaintExtend. + * + * color_stop_iterator :: + * The @FT_ColorStopIterator used to enumerate and retrieve the + * actual @FT_ColorStop's. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef struct FT_ColorLine_ + { + FT_PaintExtend extend; + FT_ColorStopIterator color_stop_iterator; + + } FT_ColorLine; + + + /************************************************************************** + * + * @struct: + * FT_Affine23 + * + * @description: + * A structure used to store a 2x3 matrix. Coefficients are in + * 16.16 fixed-point format. The computation performed is + * + * ``` + * x' = x*xx + y*xy + dx + * y' = x*yx + y*yy + dy + * ``` + * + * @fields: + * xx :: + * Matrix coefficient. + * + * xy :: + * Matrix coefficient. + * + * dx :: + * x translation. + * + * yx :: + * Matrix coefficient. + * + * yy :: + * Matrix coefficient. + * + * dy :: + * y translation. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef struct FT_Affine_23_ + { + FT_Fixed xx, xy, dx; + FT_Fixed yx, yy, dy; + + } FT_Affine23; + + + /************************************************************************** + * + * @enum: + * FT_Composite_Mode + * + * @description: + * An enumeration listing the 'COLR' v1 composite modes used in + * @FT_PaintComposite. For more details on each paint mode, see + * 'https://www.w3.org/TR/compositing-1/#porterduffcompositingoperators'. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef enum FT_Composite_Mode_ + { + FT_COLR_COMPOSITE_CLEAR = 0, + FT_COLR_COMPOSITE_SRC = 1, + FT_COLR_COMPOSITE_DEST = 2, + FT_COLR_COMPOSITE_SRC_OVER = 3, + FT_COLR_COMPOSITE_DEST_OVER = 4, + FT_COLR_COMPOSITE_SRC_IN = 5, + FT_COLR_COMPOSITE_DEST_IN = 6, + FT_COLR_COMPOSITE_SRC_OUT = 7, + FT_COLR_COMPOSITE_DEST_OUT = 8, + FT_COLR_COMPOSITE_SRC_ATOP = 9, + FT_COLR_COMPOSITE_DEST_ATOP = 10, + FT_COLR_COMPOSITE_XOR = 11, + FT_COLR_COMPOSITE_PLUS = 12, + FT_COLR_COMPOSITE_SCREEN = 13, + FT_COLR_COMPOSITE_OVERLAY = 14, + FT_COLR_COMPOSITE_DARKEN = 15, + FT_COLR_COMPOSITE_LIGHTEN = 16, + FT_COLR_COMPOSITE_COLOR_DODGE = 17, + FT_COLR_COMPOSITE_COLOR_BURN = 18, + FT_COLR_COMPOSITE_HARD_LIGHT = 19, + FT_COLR_COMPOSITE_SOFT_LIGHT = 20, + FT_COLR_COMPOSITE_DIFFERENCE = 21, + FT_COLR_COMPOSITE_EXCLUSION = 22, + FT_COLR_COMPOSITE_MULTIPLY = 23, + FT_COLR_COMPOSITE_HSL_HUE = 24, + FT_COLR_COMPOSITE_HSL_SATURATION = 25, + FT_COLR_COMPOSITE_HSL_COLOR = 26, + FT_COLR_COMPOSITE_HSL_LUMINOSITY = 27, + FT_COLR_COMPOSITE_MAX = 28 + + } FT_Composite_Mode; + + + /************************************************************************** + * + * @struct: + * FT_OpaquePaint + * + * @description: + * A structure representing an offset to a `Paint` value stored in any + * of the paint tables of a 'COLR' v1 font. Compare Offset<24> there. + * When 'COLR' v1 paint tables represented by FreeType objects such as + * @FT_PaintColrLayers, @FT_PaintComposite, or @FT_PaintTransform + * reference downstream nested paint tables, we do not immediately + * retrieve them but encapsulate their location in this type. Use + * @FT_Get_Paint to retrieve the actual @FT_COLR_Paint object that + * describes the details of the respective paint table. + * + * @fields: + * p :: + * An internal offset to a Paint table, needs to be set to NULL before + * passing this struct as an argument to @FT_Get_Paint. + * + * insert_root_transform :: + * An internal boolean to track whether an initial root transform is + * to be provided. Do not set this value. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef struct FT_Opaque_Paint_ + { + FT_Byte* p; + FT_Bool insert_root_transform; + } FT_OpaquePaint; + + + /************************************************************************** + * + * @struct: + * FT_PaintColrLayers + * + * @description: + * A structure representing a `PaintColrLayers` table of a 'COLR' v1 + * font. This table describes a set of layers that are to be composited + * with composite mode `FT_COLR_COMPOSITE_SRC_OVER`. The return value + * of this function is an @FT_LayerIterator initialized so that it can + * be used with @FT_Get_Paint_Layers to retrieve the @FT_OpaquePaint + * objects as references to each layer. + * + * @fields: + * layer_iterator :: + * The layer iterator that describes the layers of this paint. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef struct FT_PaintColrLayers_ + { + FT_LayerIterator layer_iterator; + + } FT_PaintColrLayers; + + + /************************************************************************** + * + * @struct: + * FT_PaintSolid + * + * @description: + * A structure representing a `PaintSolid` value of the 'COLR' v1 + * extensions, see 'https://github.com/googlefonts/colr-gradients-spec'. + * Using a `PaintSolid` value means that the glyph layer filled with + * this paint is solid-colored and does not contain a gradient. + * + * @fields: + * color :: + * The color information for this solid paint, see @FT_ColorIndex. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef struct FT_PaintSolid_ + { + FT_ColorIndex color; + + } FT_PaintSolid; + + + /************************************************************************** + * + * @struct: + * FT_PaintLinearGradient + * + * @description: + * A structure representing a `PaintLinearGradient` value of the 'COLR' + * v1 extensions, see + * 'https://github.com/googlefonts/colr-gradients-spec'. The glyph + * layer filled with this paint is drawn filled with a linear gradient. + * + * @fields: + * colorline :: + * The @FT_ColorLine information for this paint, i.e., the list of + * color stops along the gradient. + * + * p0 :: + * The starting point of the gradient definition in font units + * represented as a 16.16 fixed-point `FT_Vector`. + * + * p1 :: + * The end point of the gradient definition in font units + * represented as a 16.16 fixed-point `FT_Vector`. + * + * p2 :: + * Optional point~p2 to rotate the gradient in font units + * represented as a 16.16 fixed-point `FT_Vector`. + * Otherwise equal to~p0. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef struct FT_PaintLinearGradient_ + { + FT_ColorLine colorline; + + /* TODO: Potentially expose those as x0, y0 etc. */ + FT_Vector p0; + FT_Vector p1; + FT_Vector p2; + + } FT_PaintLinearGradient; + + + /************************************************************************** + * + * @struct: + * FT_PaintRadialGradient + * + * @description: + * A structure representing a `PaintRadialGradient` value of the 'COLR' + * v1 extensions, see + * 'https://github.com/googlefonts/colr-gradients-spec'. The glyph + * layer filled with this paint is drawn filled filled with a radial + * gradient. + * + * @fields: + * colorline :: + * The @FT_ColorLine information for this paint, i.e., the list of + * color stops along the gradient. + * + * c0 :: + * The center of the starting point of the radial gradient in font + * units represented as a 16.16 fixed-point `FT_Vector`. + * + * r0 :: + * The radius of the starting circle of the radial gradient in font + * units represented as a 16.16 fixed-point value. + * + * c1 :: + * The center of the end point of the radial gradient in font units + * represented as a 16.16 fixed-point `FT_Vector`. + * + * r1 :: + * The radius of the end circle of the radial gradient in font + * units represented as a 16.16 fixed-point value. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef struct FT_PaintRadialGradient_ + { + FT_ColorLine colorline; + + FT_Vector c0; + FT_Pos r0; + FT_Vector c1; + FT_Pos r1; + + } FT_PaintRadialGradient; + + + /************************************************************************** + * + * @struct: + * FT_PaintSweepGradient + * + * @description: + * A structure representing a `PaintSweepGradient` value of the 'COLR' + * v1 extensions, see + * 'https://github.com/googlefonts/colr-gradients-spec'. The glyph + * layer filled with this paint is drawn filled with a sweep gradient + * from `start_angle` to `end_angle`. + * + * @fields: + * colorline :: + * The @FT_ColorLine information for this paint, i.e., the list of + * color stops along the gradient. + * + * center :: + * The center of the sweep gradient in font units represented as a + * vector of 16.16 fixed-point values. + * + * start_angle :: + * The start angle of the sweep gradient in 16.16 fixed-point + * format specifying degrees divided by 180.0 (as in the + * spec). Multiply by 180.0f to receive degrees value. Values are + * given counter-clockwise, starting from the (positive) y~axis. + * + * end_angle :: + * The end angle of the sweep gradient in 16.16 fixed-point + * format specifying degrees divided by 180.0 (as in the + * spec). Multiply by 180.0f to receive degrees value. Values are + * given counter-clockwise, starting from the (positive) y~axis. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef struct FT_PaintSweepGradient_ + { + FT_ColorLine colorline; + + FT_Vector center; + FT_Fixed start_angle; + FT_Fixed end_angle; + + } FT_PaintSweepGradient; + + + /************************************************************************** + * + * @struct: + * FT_PaintGlyph + * + * @description: + * A structure representing a 'COLR' v1 `PaintGlyph` paint table. + * + * @fields: + * paint :: + * An opaque paint object pointing to a `Paint` table that serves as + * the fill for the glyph ID. + * + * glyphID :: + * The glyph ID from the 'glyf' table, which serves as the contour + * information that is filled with paint. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef struct FT_PaintGlyph_ + { + FT_OpaquePaint paint; + FT_UInt glyphID; + + } FT_PaintGlyph; + + + /************************************************************************** + * + * @struct: + * FT_PaintColrGlyph + * + * @description: + * A structure representing a 'COLR' v1 `PaintColorGlyph` paint table. + * + * @fields: + * glyphID :: + * The glyph ID from the `BaseGlyphV1List` table that is drawn for + * this paint. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef struct FT_PaintColrGlyph_ + { + FT_UInt glyphID; + + } FT_PaintColrGlyph; + + + /************************************************************************** + * + * @struct: + * FT_PaintTransform + * + * @description: + * A structure representing a 'COLR' v1 `PaintTransform` paint table. + * + * @fields: + * paint :: + * An opaque paint that is subject to being transformed. + * + * affine :: + * A 2x3 transformation matrix in @FT_Affine23 format containing + * 16.16 fixed-point values. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef struct FT_PaintTransform_ + { + FT_OpaquePaint paint; + FT_Affine23 affine; + + } FT_PaintTransform; + + + /************************************************************************** + * + * @struct: + * FT_PaintTranslate + * + * @description: + * A structure representing a 'COLR' v1 `PaintTranslate` paint table. + * Used for translating downstream paints by a given x and y~delta. + * + * @fields: + * paint :: + * An @FT_OpaquePaint object referencing the paint that is to be + * rotated. + * + * dx :: + * Translation in x~direction in font units represented as a + * 16.16 fixed-point value. + * + * dy :: + * Translation in y~direction in font units represented as a + * 16.16 fixed-point value. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef struct FT_PaintTranslate_ + { + FT_OpaquePaint paint; + + FT_Fixed dx; + FT_Fixed dy; + + } FT_PaintTranslate; + + + /************************************************************************** + * + * @struct: + * FT_PaintScale + * + * @description: + * A structure representing all of the 'COLR' v1 'PaintScale*' paint + * tables. Used for scaling downstream paints by a given x and y~scale, + * with a given center. This structure is used for all 'PaintScale*' + * types that are part of specification; fields of this structure are + * filled accordingly. If there is a center, the center values are set, + * otherwise they are set to the zero coordinate. If the source font + * file has 'PaintScaleUniform*' set, the scale values are set + * accordingly to the same value. + * + * @fields: + * paint :: + * An @FT_OpaquePaint object referencing the paint that is to be + * scaled. + * + * scale_x :: + * Scale factor in x~direction represented as a + * 16.16 fixed-point value. + * + * scale_y :: + * Scale factor in y~direction represented as a + * 16.16 fixed-point value. + * + * center_x :: + * x~coordinate of center point to scale from represented as a + * 16.16 fixed-point value. + * + * center_y :: + * y~coordinate of center point to scale from represented as a + * 16.16 fixed-point value. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward-compatibility of both the API and ABI. + * + */ + typedef struct FT_PaintScale_ + { + FT_OpaquePaint paint; + + FT_Fixed scale_x; + FT_Fixed scale_y; + + FT_Fixed center_x; + FT_Fixed center_y; + + } FT_PaintScale; + + + /************************************************************************** + * + * @struct: + * FT_PaintRotate + * + * @description: + * A structure representing a 'COLR' v1 `PaintRotate` paint table. Used + * for rotating downstream paints with a given center and angle. + * + * @fields: + * paint :: + * An @FT_OpaquePaint object referencing the paint that is to be + * rotated. + * + * angle :: + * The rotation angle that is to be applied in degrees divided by + * 180.0 (as in the spec) represented as a 16.16 fixed-point + * value. Multiply by 180.0f to receive degrees value. + * + * center_x :: + * The x~coordinate of the pivot point of the rotation in font + * units) represented as a 16.16 fixed-point value. + * + * center_y :: + * The y~coordinate of the pivot point of the rotation in font + * units represented as a 16.16 fixed-point value. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + + typedef struct FT_PaintRotate_ + { + FT_OpaquePaint paint; + + FT_Fixed angle; + + FT_Fixed center_x; + FT_Fixed center_y; + + } FT_PaintRotate; + + + /************************************************************************** + * + * @struct: + * FT_PaintSkew + * + * @description: + * A structure representing a 'COLR' v1 `PaintSkew` paint table. Used + * for skewing or shearing downstream paints by a given center and + * angle. + * + * @fields: + * paint :: + * An @FT_OpaquePaint object referencing the paint that is to be + * skewed. + * + * x_skew_angle :: + * The skewing angle in x~direction in degrees divided by 180.0 + * (as in the spec) represented as a 16.16 fixed-point + * value. Multiply by 180.0f to receive degrees. + * + * y_skew_angle :: + * The skewing angle in y~direction in degrees divided by 180.0 + * (as in the spec) represented as a 16.16 fixed-point + * value. Multiply by 180.0f to receive degrees. + * + * center_x :: + * The x~coordinate of the pivot point of the skew in font units + * represented as a 16.16 fixed-point value. + * + * center_y :: + * The y~coordinate of the pivot point of the skew in font units + * represented as a 16.16 fixed-point value. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef struct FT_PaintSkew_ + { + FT_OpaquePaint paint; + + FT_Fixed x_skew_angle; + FT_Fixed y_skew_angle; + + FT_Fixed center_x; + FT_Fixed center_y; + + } FT_PaintSkew; + + + /************************************************************************** + * + * @struct: + * FT_PaintComposite + * + * @description: + * A structure representing a 'COLR'v1 `PaintComposite` paint table. + * Used for compositing two paints in a 'COLR' v1 directed acycling + * graph. + * + * @fields: + * source_paint :: + * An @FT_OpaquePaint object referencing the source that is to be + * composited. + * + * composite_mode :: + * An @FT_Composite_Mode enum value determining the composition + * operation. + * + * backdrop_paint :: + * An @FT_OpaquePaint object referencing the backdrop paint that + * `source_paint` is composited onto. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef struct FT_PaintComposite_ + { + FT_OpaquePaint source_paint; + FT_Composite_Mode composite_mode; + FT_OpaquePaint backdrop_paint; + + } FT_PaintComposite; + + + /************************************************************************** + * + * @union: + * FT_COLR_Paint + * + * @description: + * A union object representing format and details of a paint table of a + * 'COLR' v1 font, see + * 'https://github.com/googlefonts/colr-gradients-spec'. Use + * @FT_Get_Paint to retrieve a @FT_COLR_Paint for an @FT_OpaquePaint + * object. + * + * @fields: + * format :: + * The gradient format for this Paint structure. + * + * u :: + * Union of all paint table types: + * + * * @FT_PaintColrLayers + * * @FT_PaintGlyph + * * @FT_PaintSolid + * * @FT_PaintLinearGradient + * * @FT_PaintRadialGradient + * * @FT_PaintSweepGradient + * * @FT_PaintTransform + * * @FT_PaintTranslate + * * @FT_PaintRotate + * * @FT_PaintSkew + * * @FT_PaintComposite + * * @FT_PaintColrGlyph + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef struct FT_COLR_Paint_ + { + FT_PaintFormat format; + + union + { + FT_PaintColrLayers colr_layers; + FT_PaintGlyph glyph; + FT_PaintSolid solid; + FT_PaintLinearGradient linear_gradient; + FT_PaintRadialGradient radial_gradient; + FT_PaintSweepGradient sweep_gradient; + FT_PaintTransform transform; + FT_PaintTranslate translate; + FT_PaintScale scale; + FT_PaintRotate rotate; + FT_PaintSkew skew; + FT_PaintComposite composite; + FT_PaintColrGlyph colr_glyph; + + } u; + + } FT_COLR_Paint; + + + /************************************************************************** + * + * @enum: + * FT_Color_Root_Transform + * + * @description: + * An enumeration to specify whether @FT_Get_Color_Glyph_Paint is to + * return a root transform to configure the client's graphics context + * matrix. + * + * @values: + * FT_COLOR_INCLUDE_ROOT_TRANSFORM :: + * Do include the root transform as the initial @FT_COLR_Paint object. + * + * FT_COLOR_NO_ROOT_TRANSFORM :: + * Do not output an initial root transform. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef enum FT_Color_Root_Transform_ + { + FT_COLOR_INCLUDE_ROOT_TRANSFORM, + FT_COLOR_NO_ROOT_TRANSFORM, + + FT_COLOR_ROOT_TRANSFORM_MAX + + } FT_Color_Root_Transform; + + + /************************************************************************** + * + * @struct: + * FT_ClipBox + * + * @description: + * A structure representing a 'COLR' v1 'ClipBox' table. 'COLR' v1 + * glyphs may optionally define a clip box for aiding allocation or + * defining a maximum drawable region. Use @FT_Get_Color_Glyph_ClipBox + * to retrieve it. + * + * @fields: + * bottom_left :: + * The bottom left corner of the clip box as an @FT_Vector with + * fixed-point coordinates in 26.6 format. + * + * top_left :: + * The top left corner of the clip box as an @FT_Vector with + * fixed-point coordinates in 26.6 format. + * + * top_right :: + * The top right corner of the clip box as an @FT_Vector with + * fixed-point coordinates in 26.6 format. + * + * bottom_right :: + * The bottom right corner of the clip box as an @FT_Vector with + * fixed-point coordinates in 26.6 format. + * + * @since: + * 2.12 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + typedef struct FT_ClipBox_ + { + FT_Vector bottom_left; + FT_Vector top_left; + FT_Vector top_right; + FT_Vector bottom_right; + + } FT_ClipBox; + + + /************************************************************************** + * + * @function: + * FT_Get_Color_Glyph_Paint + * + * @description: + * This is the starting point and interface to color gradient + * information in a 'COLR' v1 table in OpenType fonts to recursively + * retrieve the paint tables for the directed acyclic graph of a colored + * glyph, given a glyph ID. + * + * https://github.com/googlefonts/colr-gradients-spec + * + * In a 'COLR' v1 font, each color glyph defines a directed acyclic + * graph of nested paint tables, such as `PaintGlyph`, `PaintSolid`, + * `PaintLinearGradient`, `PaintRadialGradient`, and so on. Using this + * function and specifying a glyph ID, one retrieves the root paint + * table for this glyph ID. + * + * This function allows control whether an initial root transform is + * returned to configure scaling, transform, and translation correctly + * on the client's graphics context. The initial root transform is + * computed and returned according to the values configured for @FT_Size + * and @FT_Set_Transform on the @FT_Face object, see below for details + * of the `root_transform` parameter. This has implications for a + * client 'COLR' v1 implementation: When this function returns an + * initially computed root transform, at the time of executing the + * @FT_PaintGlyph operation, the contours should be retrieved using + * @FT_Load_Glyph at unscaled, untransformed size. This is because the + * root transform applied to the graphics context will take care of + * correct scaling. + * + * Alternatively, to allow hinting of contours, at the time of executing + * @FT_Load_Glyph, the current graphics context transformation matrix + * can be decomposed into a scaling matrix and a remainder, and + * @FT_Load_Glyph can be used to retrieve the contours at scaled size. + * Care must then be taken to blit or clip to the graphics context with + * taking this remainder transformation into account. + * + * @input: + * face :: + * A handle to the parent face object. + * + * base_glyph :: + * The glyph index for which to retrieve the root paint table. + * + * root_transform :: + * Specifies whether an initially computed root is returned by the + * @FT_PaintTransform operation to account for the activated size + * (see @FT_Activate_Size) and the configured transform and translate + * (see @FT_Set_Transform). + * + * This root transform is returned before nodes of the glyph graph of + * the font are returned. Subsequent @FT_COLR_Paint structures + * contain unscaled and untransformed values. The inserted root + * transform enables the client application to apply an initial + * transform to its graphics context. When executing subsequent + * FT_COLR_Paint operations, values from @FT_COLR_Paint operations + * will ultimately be correctly scaled because of the root transform + * applied to the graphics context. Use + * @FT_COLOR_INCLUDE_ROOT_TRANSFORM to include the root transform, use + * @FT_COLOR_NO_ROOT_TRANSFORM to not include it. The latter may be + * useful when traversing the 'COLR' v1 glyph graph and reaching a + * @FT_PaintColrGlyph. When recursing into @FT_PaintColrGlyph and + * painting that inline, no additional root transform is needed as it + * has already been applied to the graphics context at the beginning + * of drawing this glyph. + * + * @output: + * paint :: + * The @FT_OpaquePaint object that references the actual paint table. + * + * The respective actual @FT_COLR_Paint object is retrieved via + * @FT_Get_Paint. + * + * @return: + * Value~1 if everything is OK. If no color glyph is found, or the root + * paint could not be retrieved, value~0 gets returned. In case of an + * error, value~0 is returned also. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + FT_EXPORT( FT_Bool ) + FT_Get_Color_Glyph_Paint( FT_Face face, + FT_UInt base_glyph, + FT_Color_Root_Transform root_transform, + FT_OpaquePaint* paint ); + + + /************************************************************************** + * + * @function: + * FT_Get_Color_Glyph_ClipBox + * + * @description: + * Search for a 'COLR' v1 clip box for the specified `base_glyph` and + * fill the `clip_box` parameter with the 'COLR' v1 'ClipBox' information + * if one is found. + * + * @input: + * face :: + * A handle to the parent face object. + * + * base_glyph :: + * The glyph index for which to retrieve the clip box. + * + * @output: + * clip_box :: + * The clip box for the requested `base_glyph` if one is found. The + * clip box is computed taking scale and transformations configured on + * the @FT_Face into account. @FT_ClipBox contains @FT_Vector values + * in 26.6 format. + * + * @return: + * Value~1 if a clip box is found. If no clip box is found or an error + * occured, value~0 is returned. + * + * @note: + * To retrieve the clip box in font units, reset scale to units-per-em + * and remove transforms configured using @FT_Set_Transform. + * + * @since: + * 2.12 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + FT_EXPORT( FT_Bool ) + FT_Get_Color_Glyph_ClipBox( FT_Face face, + FT_UInt base_glyph, + FT_ClipBox* clip_box ); + + + /************************************************************************** + * + * @function: + * FT_Get_Paint_Layers + * + * @description: + * Access the layers of a `PaintColrLayers` table. + * + * If the root paint of a color glyph, or a nested paint of a 'COLR' + * glyph is a `PaintColrLayers` table, this function retrieves the + * layers of the `PaintColrLayers` table. + * + * The @FT_PaintColrLayers object contains an @FT_LayerIterator, which + * is used here to iterate over the layers. Each layer is returned as + * an @FT_OpaquePaint object, which then can be used with @FT_Get_Paint + * to retrieve the actual paint object. + * + * @input: + * face :: + * A handle to the parent face object. + * + * @inout: + * iterator :: + * The @FT_LayerIterator from an @FT_PaintColrLayers object, for which + * the layers are to be retrieved. The internal state of the iterator + * is incremented after one call to this function for retrieving one + * layer. + * + * @output: + * paint :: + * The @FT_OpaquePaint object that references the actual paint table. + * The respective actual @FT_COLR_Paint object is retrieved via + * @FT_Get_Paint. + * + * @return: + * Value~1 if everything is OK. Value~0 gets returned when the paint + * object can not be retrieved or any other error occurs. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + FT_EXPORT( FT_Bool ) + FT_Get_Paint_Layers( FT_Face face, + FT_LayerIterator* iterator, + FT_OpaquePaint* paint ); + + + /************************************************************************** + * + * @function: + * FT_Get_Colorline_Stops + * + * @description: + * This is an interface to color gradient information in a 'COLR' v1 + * table in OpenType fonts to iteratively retrieve the gradient and + * solid fill information for colored glyph layers for a specified glyph + * ID. + * + * https://github.com/googlefonts/colr-gradients-spec + * + * @input: + * face :: + * A handle to the parent face object. + * + * @inout: + * iterator :: + * The retrieved @FT_ColorStopIterator, configured on an @FT_ColorLine, + * which in turn got retrieved via paint information in + * @FT_PaintLinearGradient or @FT_PaintRadialGradient. + * + * @output: + * color_stop :: + * Color index and alpha value for the retrieved color stop. + * + * @return: + * Value~1 if everything is OK. If there are no more color stops, + * value~0 gets returned. In case of an error, value~0 is returned + * also. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + FT_EXPORT( FT_Bool ) + FT_Get_Colorline_Stops( FT_Face face, + FT_ColorStop* color_stop, + FT_ColorStopIterator* iterator ); + + + /************************************************************************** + * + * @function: + * FT_Get_Paint + * + * @description: + * Access the details of a paint using an @FT_OpaquePaint opaque paint + * object, which internally stores the offset to the respective `Paint` + * object in the 'COLR' table. + * + * @input: + * face :: + * A handle to the parent face object. + * + * opaque_paint :: + * The opaque paint object for which the underlying @FT_COLR_Paint + * data is to be retrieved. + * + * @output: + * paint :: + * The specific @FT_COLR_Paint object containing information coming + * from one of the font's `Paint*` tables. + * + * @return: + * Value~1 if everything is OK. Value~0 if no details can be found for + * this paint or any other error occured. + * + * @since: + * 2.11 -- **currently experimental only!** There might be changes + * without retaining backward compatibility of both the API and ABI. + * + */ + FT_EXPORT( FT_Bool ) + FT_Get_Paint( FT_Face face, + FT_OpaquePaint opaque_paint, + FT_COLR_Paint* paint ); + /* */ diff --git a/include/freetype/ftdriver.h b/include/freetype/ftdriver.h index 804ec34a3..493663905 100644 --- a/include/freetype/ftdriver.h +++ b/include/freetype/ftdriver.h @@ -4,7 +4,7 @@ * * FreeType API for controlling driver modules (specification only). * - * Copyright (C) 2017-2020 by + * Copyright (C) 2017-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -53,10 +53,10 @@ FT_BEGIN_HEADER * reasons. * * Available properties are @increase-x-height, @no-stem-darkening - * (experimental), @darkening-parameters (experimental), @warping - * (experimental), @glyph-to-script-map (experimental), @fallback-script - * (experimental), and @default-script (experimental), as documented in - * the @properties section. + * (experimental), @darkening-parameters (experimental), + * @glyph-to-script-map (experimental), @fallback-script (experimental), + * and @default-script (experimental), as documented in the @properties + * section. * */ @@ -84,15 +84,15 @@ FT_BEGIN_HEADER * @properties section. * * - * **Hinting and antialiasing principles of the new engine** + * **Hinting and anti-aliasing principles of the new engine** * * The rasterizer is positioning horizontal features (e.g., ascender * height & x-height, or crossbars) on the pixel grid and minimizing the - * amount of antialiasing applied to them, while placing vertical + * amount of anti-aliasing applied to them, while placing vertical * features (vertical stems) on the pixel grid without hinting, thus * representing the stem position and weight accurately. Sometimes the * vertical stems may be only partially black. In this context, - * 'antialiasing' means that stems are not positioned exactly on pixel + * 'anti-aliasing' means that stems are not positioned exactly on pixel * borders, causing a fuzzy appearance. * * There are two principles behind this approach. @@ -108,7 +108,7 @@ FT_BEGIN_HEADER * sizes are comparable to kerning values and thus would be noticeable * (and distracting) while reading if hinting were applied. * - * One of the reasons to not hint horizontally is antialiasing for LCD + * One of the reasons to not hint horizontally is anti-aliasing for LCD * screens: The pixel geometry of modern displays supplies three vertical * subpixels as the eye moves horizontally across each visible pixel. On * devices where we can be certain this characteristic is present a @@ -116,7 +116,7 @@ FT_BEGIN_HEADER * weight. In Western writing systems this turns out to be the more * critical direction anyway; the weights and spacing of vertical stems * (see above) are central to Armenian, Cyrillic, Greek, and Latin type - * designs. Even when the rasterizer uses greyscale antialiasing instead + * designs. Even when the rasterizer uses greyscale anti-aliasing instead * of color (a necessary compromise when one doesn't know the screen * characteristics), the unhinted vertical features preserve the design's * weight and spacing much better than aliased type would. @@ -362,12 +362,8 @@ FT_BEGIN_HEADER * The same holds for the Type~1 and CID modules if compiled with * `T1_CONFIG_OPTION_OLD_ENGINE`. * - * For the 'cff' module, the default engine is 'freetype' if - * `CFF_CONFIG_OPTION_OLD_ENGINE` is defined, and 'adobe' otherwise. - * - * For both the 'type1' and 't1cid' modules, the default engine is - * 'freetype' if `T1_CONFIG_OPTION_OLD_ENGINE` is defined, and 'adobe' - * otherwise. + * For the 'cff' module, the default engine is 'adobe'. For both the + * 'type1' and 't1cid' modules, the default engine is 'adobe', too. * * @note: * This property can be used with @FT_Property_Get also. @@ -1166,48 +1162,18 @@ FT_BEGIN_HEADER * warping * * @description: - * **Experimental only** + * **Obsolete** * - * If FreeType gets compiled with option `AF_CONFIG_OPTION_USE_WARPER` to - * activate the warp hinting code in the auto-hinter, this property - * switches warping on and off. + * This property was always experimental and probably never worked + * correctly. It was entirely removed from the FreeType~2 sources. This + * entry is only here for historical reference. * - * Warping only works in 'normal' auto-hinting mode replacing it. The - * idea of the code is to slightly scale and shift a glyph along the + * Warping only worked in 'normal' auto-hinting mode replacing it. The + * idea of the code was to slightly scale and shift a glyph along the * non-hinted dimension (which is usually the horizontal axis) so that as - * much of its segments are aligned (more or less) to the grid. To find + * much of its segments were aligned (more or less) to the grid. To find * out a glyph's optimal scaling and shifting value, various parameter - * combinations are tried and scored. - * - * By default, warping is off. - * - * @note: - * This property can be used with @FT_Property_Get also. - * - * This property can be set via the `FREETYPE_PROPERTIES` environment - * variable (using values 1 and 0 for 'on' and 'off', respectively). - * - * The warping code can also change advance widths. Have a look at the - * `lsb_delta` and `rsb_delta` fields in the @FT_GlyphSlotRec structure - * for details on improving inter-glyph distances while rendering. - * - * Since warping is a global property of the auto-hinter it is best to - * change its value before rendering any face. Otherwise, you should - * reload all faces that get auto-hinted in 'normal' hinting mode. - * - * @example: - * This example shows how to switch on warping (omitting the error - * handling). - * - * ``` - * FT_Library library; - * FT_Bool warping = 1; - * - * - * FT_Init_FreeType( &library ); - * - * FT_Property_Set( library, "autofitter", "warping", &warping ); - * ``` + * combinations were tried and scored. * * @since: * 2.6 diff --git a/include/freetype/fterrdef.h b/include/freetype/fterrdef.h index 895d2d4dc..6e9c4ccb9 100644 --- a/include/freetype/fterrdef.h +++ b/include/freetype/fterrdef.h @@ -4,7 +4,7 @@ * * FreeType error codes (specification). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/fterrors.h b/include/freetype/fterrors.h index 60a637c77..151941dde 100644 --- a/include/freetype/fterrors.h +++ b/include/freetype/fterrors.h @@ -4,7 +4,7 @@ * * FreeType error code handling (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -281,6 +281,8 @@ FT_BEGIN_HEADER FT_EXPORT( const char* ) FT_Error_String( FT_Error error_code ); + /* */ + FT_END_HEADER diff --git a/include/freetype/ftfntfmt.h b/include/freetype/ftfntfmt.h index f803349cd..8e68a4a3a 100644 --- a/include/freetype/ftfntfmt.h +++ b/include/freetype/ftfntfmt.h @@ -4,7 +4,7 @@ * * Support functions for font formats. * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftgasp.h b/include/freetype/ftgasp.h index 6b76882c7..76c45eb3b 100644 --- a/include/freetype/ftgasp.h +++ b/include/freetype/ftgasp.h @@ -4,7 +4,7 @@ * * Access of TrueType's 'gasp' table (specification). * - * Copyright (C) 2007-2020 by + * Copyright (C) 2007-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftglyph.h b/include/freetype/ftglyph.h index 704619e3d..26b32ed6b 100644 --- a/include/freetype/ftglyph.h +++ b/include/freetype/ftglyph.h @@ -4,7 +4,7 @@ * * FreeType convenience functions to handle glyphs (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -337,9 +337,9 @@ FT_BEGIN_HEADER * vector. */ FT_EXPORT( FT_Error ) - FT_Glyph_Transform( FT_Glyph glyph, - FT_Matrix* matrix, - FT_Vector* delta ); + FT_Glyph_Transform( FT_Glyph glyph, + const FT_Matrix* matrix, + const FT_Vector* delta ); /************************************************************************** @@ -569,10 +569,10 @@ FT_BEGIN_HEADER * ``` */ FT_EXPORT( FT_Error ) - FT_Glyph_To_Bitmap( FT_Glyph* the_glyph, - FT_Render_Mode render_mode, - FT_Vector* origin, - FT_Bool destroy ); + FT_Glyph_To_Bitmap( FT_Glyph* the_glyph, + FT_Render_Mode render_mode, + const FT_Vector* origin, + FT_Bool destroy ); /************************************************************************** diff --git a/include/freetype/ftgxval.h b/include/freetype/ftgxval.h index 354460a9a..21bbbde2a 100644 --- a/include/freetype/ftgxval.h +++ b/include/freetype/ftgxval.h @@ -4,7 +4,7 @@ * * FreeType API for validating TrueTypeGX/AAT tables (specification). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * Masatake YAMATO, Redhat K.K, * David Turner, Robert Wilhelm, and Werner Lemberg. * diff --git a/include/freetype/ftgzip.h b/include/freetype/ftgzip.h index ec5939a19..ba82baba6 100644 --- a/include/freetype/ftgzip.h +++ b/include/freetype/ftgzip.h @@ -4,7 +4,7 @@ * * Gzip-compressed stream support. * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftimage.h b/include/freetype/ftimage.h index 74911620d..88533b840 100644 --- a/include/freetype/ftimage.h +++ b/include/freetype/ftimage.h @@ -5,7 +5,7 @@ * FreeType glyph image formats and default raster interface * (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -28,11 +28,6 @@ #define FTIMAGE_H_ - /* STANDALONE_ is from ftgrays.c */ -#ifndef STANDALONE_ -#endif - - FT_BEGIN_HEADER @@ -201,6 +196,11 @@ FT_BEGIN_HEADER #define ft_pixel_mode_pal2 FT_PIXEL_MODE_GRAY2 #define ft_pixel_mode_pal4 FT_PIXEL_MODE_GRAY4 + /* */ + + /* For debugging, the @FT_Pixel_Mode enumeration must stay in sync */ + /* with the `pixel_modes` array in file `ftobjs.c`. */ + /************************************************************************** * @@ -695,11 +695,13 @@ FT_BEGIN_HEADER * to get a simple enumeration without assigning special numbers. */ #ifndef FT_IMAGE_TAG -#define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) \ - value = ( ( (unsigned long)_x1 << 24 ) | \ - ( (unsigned long)_x2 << 16 ) | \ - ( (unsigned long)_x3 << 8 ) | \ - (unsigned long)_x4 ) + +#define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) \ + value = ( ( FT_STATIC_BYTE_CAST( unsigned long, _x1 ) << 24 ) | \ + ( FT_STATIC_BYTE_CAST( unsigned long, _x2 ) << 16 ) | \ + ( FT_STATIC_BYTE_CAST( unsigned long, _x3 ) << 8 ) | \ + FT_STATIC_BYTE_CAST( unsigned long, _x4 ) ) + #endif /* FT_IMAGE_TAG */ @@ -772,17 +774,6 @@ FT_BEGIN_HEADER /*************************************************************************/ - /************************************************************************** - * - * A raster is a scan converter, in charge of rendering an outline into a - * bitmap. This section contains the public API for rasters. - * - * Note that in FreeType 2, all rasters are now encapsulated within - * specific modules called 'renderers'. See `ftrender.h` for more details - * on renderers. - * - */ - /************************************************************************** * @@ -796,16 +787,35 @@ FT_BEGIN_HEADER * How vectorial outlines are converted into bitmaps and pixmaps. * * @description: - * This section contains technical definitions. + * A raster or a rasterizer is a scan converter in charge of producing a + * pixel coverage bitmap that can be used as an alpha channel when + * compositing a glyph with a background. FreeType comes with two + * rasterizers: bilevel `raster1` and anti-aliased `smooth` are two + * separate modules. They are usually called from the high-level + * @FT_Load_Glyph or @FT_Render_Glyph functions and produce the entire + * coverage bitmap at once, while staying largely invisible to users. + * + * Instead of working with complete coverage bitmaps, it is also possible + * to intercept consecutive pixel runs on the same scanline with the same + * coverage, called _spans_, and process them individually. Only the + * `smooth` rasterizer permits this when calling @FT_Outline_Render with + * @FT_Raster_Params as described below. + * + * Working with either complete bitmaps or spans it is important to think + * of them as colorless coverage objects suitable as alpha channels to + * blend arbitrary colors with a background. For best results, it is + * recommended to use gamma correction, too. + * + * This section also describes the public API needed to set up alternative + * @FT_Renderer modules. * * @order: - * FT_Raster * FT_Span * FT_SpanFunc - * * FT_Raster_Params * FT_RASTER_FLAG_XXX * + * FT_Raster * FT_Raster_NewFunc * FT_Raster_DoneFunc * FT_Raster_ResetFunc @@ -818,24 +828,12 @@ FT_BEGIN_HEADER /************************************************************************** * - * @type: - * FT_Raster - * - * @description: - * An opaque handle (pointer) to a raster object. Each object can be - * used independently to convert an outline into a bitmap or pixmap. - */ - typedef struct FT_RasterRec_* FT_Raster; - - - /************************************************************************** - * * @struct: * FT_Span * * @description: - * A structure used to model a single span of gray pixels when rendering - * an anti-aliased bitmap. + * A structure to model a single span of consecutive pixels when + * rendering an anti-aliased bitmap. * * @fields: * x :: @@ -852,8 +850,8 @@ FT_BEGIN_HEADER * This structure is used by the span drawing callback type named * @FT_SpanFunc that takes the y~coordinate of the span as a parameter. * - * The coverage value is always between 0 and 255. If you want less gray - * values, the callback function has to reduce them. + * The anti-aliased rasterizer produces coverage values from 0 to 255, + * this is, from completely transparent to completely opaque. */ typedef struct FT_Span_ { @@ -871,8 +869,8 @@ FT_BEGIN_HEADER * * @description: * A function used as a call-back by the anti-aliased renderer in order - * to let client applications draw themselves the gray pixel spans on - * each scan line. + * to let client applications draw themselves the pixel spans on each + * scan line. * * @input: * y :: @@ -888,11 +886,12 @@ FT_BEGIN_HEADER * User-supplied data that is passed to the callback. * * @note: - * This callback allows client applications to directly render the gray - * spans of the anti-aliased bitmap to any kind of surfaces. + * This callback allows client applications to directly render the spans + * of the anti-aliased bitmap to any kind of surfaces. * * This can be used to write anti-aliased outlines directly to a given - * background bitmap, and even perform translucency. + * background bitmap using alpha compositing. It can also be used for + * oversampling and averaging. */ typedef void (*FT_SpanFunc)( int y, @@ -962,11 +961,17 @@ FT_BEGIN_HEADER * will be clipped to a box specified in the `clip_box` field of the * @FT_Raster_Params structure. Otherwise, the `clip_box` is * effectively set to the bounding box and all spans are generated. + * + * FT_RASTER_FLAG_SDF :: + * This flag is set to indicate that a signed distance field glyph + * image should be generated. This is only used while rendering with + * the @FT_RENDER_MODE_SDF render mode. */ #define FT_RASTER_FLAG_DEFAULT 0x0 #define FT_RASTER_FLAG_AA 0x1 #define FT_RASTER_FLAG_DIRECT 0x2 #define FT_RASTER_FLAG_CLIP 0x4 +#define FT_RASTER_FLAG_SDF 0x8 /* these constants are deprecated; use the corresponding */ /* `FT_RASTER_FLAG_XXX` values instead */ @@ -1049,6 +1054,23 @@ FT_BEGIN_HEADER /************************************************************************** * + * @type: + * FT_Raster + * + * @description: + * An opaque handle (pointer) to a raster object. Each object can be + * used independently to convert an outline into a bitmap or pixmap. + * + * @note: + * In FreeType 2, all rasters are now encapsulated within specific + * @FT_Renderer modules and only used in their context. + * + */ + typedef struct FT_RasterRec_* FT_Raster; + + + /************************************************************************** + * * @functype: * FT_Raster_NewFunc * diff --git a/include/freetype/ftincrem.h b/include/freetype/ftincrem.h index f67655eda..229b947bd 100644 --- a/include/freetype/ftincrem.h +++ b/include/freetype/ftincrem.h @@ -4,7 +4,7 @@ * * FreeType incremental loading (specification). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -213,9 +213,14 @@ FT_BEGIN_HEADER * * @description: * A function used to retrieve the basic metrics of a given glyph index - * before accessing its data. This is necessary because, in certain - * formats like TrueType, the metrics are stored in a different place - * from the glyph images proper. + * before accessing its data. This allows for handling font types such + * as PCL~XL Format~1, Class~2 downloaded TrueType fonts, where the glyph + * metrics (`hmtx` and `vmtx` tables) are permitted to be omitted from + * the font, and the relevant metrics included in the header of the glyph + * outline data. Importantly, this is not intended to allow custom glyph + * metrics (for example, Postscript Metrics dictionaries), because that + * conflicts with the requirements of outline hinting. Such custom + * metrics must be handled separately, by the calling application. * * @input: * incremental :: @@ -235,7 +240,7 @@ FT_BEGIN_HEADER * * @output: * ametrics :: - * The replacement glyph metrics in font units. + * The glyph metrics in font units. * */ typedef FT_Error @@ -264,7 +269,7 @@ FT_BEGIN_HEADER * * get_glyph_metrics :: * The function to get glyph metrics. May be null if the font does not - * provide overriding glyph metrics. + * require it. * */ typedef struct FT_Incremental_FuncsRec_ diff --git a/include/freetype/ftlcdfil.h b/include/freetype/ftlcdfil.h index c6995f2ff..18e254417 100644 --- a/include/freetype/ftlcdfil.h +++ b/include/freetype/ftlcdfil.h @@ -5,7 +5,7 @@ * FreeType API for color filtering of subpixel bitmap glyphs * (specification). * - * Copyright (C) 2006-2020 by + * Copyright (C) 2006-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -44,7 +44,7 @@ FT_BEGIN_HEADER * API to control subpixel rendering. * * @description: - * FreeType provides two alternative subpixel rendering technologies. + * FreeType provides two alternative subpixel rendering technologies. * Should you define `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` in your * `ftoption.h` file, this enables ClearType-style rendering. * Otherwise, Harmony LCD rendering is enabled. These technologies are @@ -55,13 +55,12 @@ FT_BEGIN_HEADER * ClearType-style LCD rendering exploits the color-striped structure of * LCD pixels, increasing the available resolution in the direction of * the stripe (usually horizontal RGB) by a factor of~3. Using the - * subpixels coverages unfiltered can create severe color fringes + * subpixel coverages unfiltered can create severe color fringes * especially when rendering thin features. Indeed, to produce * black-on-white text, the nearby color subpixels must be dimmed - * equally. - * - * A good 5-tap FIR filter should be applied to subpixel coverages - * regardless of pixel boundaries and should have these properties: + * evenly. Therefore, an equalizing 5-tap FIR filter should be applied + * to subpixel coverages regardless of pixel boundaries and should have + * these properties: * * 1. It should be symmetrical, like {~a, b, c, b, a~}, to avoid * any shifts in appearance. @@ -84,7 +83,7 @@ FT_BEGIN_HEADER * Harmony LCD rendering is suitable to panels with any regular subpixel * structure, not just monitors with 3 color striped subpixels, as long * as the color subpixels have fixed positions relative to the pixel - * center. In this case, each color channel is then rendered separately + * center. In this case, each color channel can be rendered separately * after shifting the outline opposite to the subpixel shift so that the * coverage maps are aligned. This method is immune to color fringes * because the shifts do not change integral coverage. @@ -101,9 +100,9 @@ FT_BEGIN_HEADER * clockwise. Harmony with default LCD geometry is equivalent to * ClearType with light filter. * - * As a result of ClearType filtering or Harmony rendering, the - * dimensions of LCD bitmaps can be either wider or taller than the - * dimensions of the corresponding outline with regard to the pixel grid. + * As a result of ClearType filtering or Harmony shifts, the resulting + * dimensions of LCD bitmaps can be slightly wider or taller than the + * dimensions the original outline with regard to the pixel grid. * For example, for @FT_RENDER_MODE_LCD, the filter adds 2~subpixels to * the left, and 2~subpixels to the right. The bitmap offset values are * adjusted accordingly, so clients shouldn't need to modify their layout diff --git a/include/freetype/ftlist.h b/include/freetype/ftlist.h index 458892270..55f015977 100644 --- a/include/freetype/ftlist.h +++ b/include/freetype/ftlist.h @@ -4,7 +4,7 @@ * * Generic list support for FreeType (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftlogging.h b/include/freetype/ftlogging.h new file mode 100644 index 000000000..a558b85fa --- /dev/null +++ b/include/freetype/ftlogging.h @@ -0,0 +1,184 @@ +/**************************************************************************** + * + * ftlogging.h + * + * Additional debugging APIs. + * + * Copyright (C) 2020-2021 by + * David Turner, Robert Wilhelm, and Werner Lemberg. + * + * This file is part of the FreeType project, and may only be used, + * modified, and distributed under the terms of the FreeType project + * license, LICENSE.TXT. By continuing to use, modify, or distribute + * this file you indicate that you have read the license and + * understand and accept it fully. + * + */ + + +#ifndef FTLOGGING_H_ +#define FTLOGGING_H_ + + +#include <ft2build.h> +#include FT_CONFIG_CONFIG_H + + +FT_BEGIN_HEADER + + + /************************************************************************** + * + * @section: + * debugging_apis + * + * @title: + * External Debugging APIs + * + * @abstract: + * Public APIs to control the `FT_DEBUG_LOGGING` macro. + * + * @description: + * This section contains the declarations of public functions that + * enables fine control of what the `FT_DEBUG_LOGGING` macro outputs. + * + */ + + + /************************************************************************** + * + * @function: + * FT_Trace_Set_Level + * + * @description: + * Change the levels of tracing components of FreeType at run time. + * + * @input: + * tracing_level :: + * New tracing value. + * + * @example: + * The following call makes FreeType trace everything but the 'memory' + * component. + * + * ``` + * FT_Trace_Set_Level( "any:7 memory:0 ); + * ``` + * + * @note: + * This function does nothing if compilation option `FT_DEBUG_LOGGING` + * isn't set. + * + * @since: + * 2.11 + * + */ + FT_EXPORT( void ) + FT_Trace_Set_Level( const char* tracing_level ); + + + /************************************************************************** + * + * @function: + * FT_Trace_Set_Default_Level + * + * @description: + * Reset tracing value of FreeType's components to the default value + * (i.e., to the value of the `FT2_DEBUG` environment value or to NULL + * if `FT2_DEBUG` is not set). + * + * @note: + * This function does nothing if compilation option `FT_DEBUG_LOGGING` + * isn't set. + * + * @since: + * 2.11 + * + */ + FT_EXPORT( void ) + FT_Trace_Set_Default_Level( void ); + + + /************************************************************************** + * + * @functype: + * FT_Custom_Log_Handler + * + * @description: + * A function typedef that is used to handle the logging of tracing and + * debug messages on a file system. + * + * @input: + * ft_component :: + * The name of `FT_COMPONENT` from which the current debug or error + * message is produced. + * + * fmt :: + * Actual debug or tracing message. + * + * args:: + * Arguments of debug or tracing messages. + * + * @since: + * 2.11 + * + */ + typedef void + (*FT_Custom_Log_Handler)( const char* ft_component, + const char* fmt, + va_list args ); + + + /************************************************************************** + * + * @function: + * FT_Set_Log_Handler + * + * @description: + * A function to set a custom log handler. + * + * @input: + * handler :: + * New logging function. + * + * @note: + * This function does nothing if compilation option `FT_DEBUG_LOGGING` + * isn't set. + * + * @since: + * 2.11 + * + */ + FT_EXPORT( void ) + FT_Set_Log_Handler( FT_Custom_Log_Handler handler ); + + + /************************************************************************** + * + * @function: + * FT_Set_Default_Log_Handler + * + * @description: + * A function to undo the effect of @FT_Set_Log_Handler, resetting the + * log handler to FreeType's built-in version. + * + * @note: + * This function does nothing if compilation option `FT_DEBUG_LOGGING` + * isn't set. + * + * @since: + * 2.11 + * + */ + FT_EXPORT( void ) + FT_Set_Default_Log_Handler( void ); + + /* */ + + +FT_END_HEADER + +#endif /* FTLOGGING_H_ */ + + +/* END */ diff --git a/include/freetype/ftlzw.h b/include/freetype/ftlzw.h index ae46ad602..fce1c9c4b 100644 --- a/include/freetype/ftlzw.h +++ b/include/freetype/ftlzw.h @@ -4,7 +4,7 @@ * * LZW-compressed stream support. * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftmac.h b/include/freetype/ftmac.h index c9de98184..607af9b58 100644 --- a/include/freetype/ftmac.h +++ b/include/freetype/ftmac.h @@ -4,7 +4,7 @@ * * Additional Mac-specific API. * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * Just van Rossum, David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftmm.h b/include/freetype/ftmm.h index d8781a829..32579e997 100644 --- a/include/freetype/ftmm.h +++ b/include/freetype/ftmm.h @@ -4,7 +4,7 @@ * * FreeType Multiple Master font interface (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftmodapi.h b/include/freetype/ftmodapi.h index 3f7ae82ba..b77d356de 100644 --- a/include/freetype/ftmodapi.h +++ b/include/freetype/ftmodapi.h @@ -4,7 +4,7 @@ * * FreeType modules public interface (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -45,10 +45,12 @@ FT_BEGIN_HEADER * * @description: * The definitions below are used to manage modules within FreeType. - * Modules can be added, upgraded, and removed at runtime. Additionally, - * some module properties can be controlled also. + * Internal and external modules can be added, upgraded, and removed at + * runtime. For example, an alternative renderer or proprietary font + * driver can be registered and prioritized. Additionally, some module + * properties can also be controlled. * - * Here is a list of possible values of the `module_name` field in the + * Here is a list of existing values of the `module_name` field in the * @FT_Module_Class structure. * * ``` @@ -86,6 +88,7 @@ FT_BEGIN_HEADER * FT_Remove_Module * FT_Add_Default_Modules * + * FT_FACE_DRIVER_NAME * FT_Property_Set * FT_Property_Get * FT_Set_Default_Properties @@ -330,6 +333,27 @@ FT_BEGIN_HEADER /************************************************************************** * + * @macro: + * FT_FACE_DRIVER_NAME + * + * @description: + * A macro that retrieves the name of a font driver from a face object. + * + * @note: + * The font driver name is a valid `module_name` for @FT_Property_Set + * and @FT_Property_Get. This is not the same as @FT_Get_Font_Format. + * + * @since: + * 2.11 + * + */ +#define FT_FACE_DRIVER_NAME( face ) \ + ( ( *FT_REINTERPRET_CAST( FT_Module_Class**, \ + ( face )->driver ) )->module_name ) + + + /************************************************************************** + * * @function: * FT_Property_Set * @@ -485,8 +509,7 @@ FT_BEGIN_HEADER * * ``` * FREETYPE_PROPERTIES=truetype:interpreter-version=35 \ - * cff:no-stem-darkening=0 \ - * autofitter:warping=1 + * cff:no-stem-darkening=0 * ``` * * @inout: diff --git a/include/freetype/ftmoderr.h b/include/freetype/ftmoderr.h index f05fc53aa..b417cd5ab 100644 --- a/include/freetype/ftmoderr.h +++ b/include/freetype/ftmoderr.h @@ -4,7 +4,7 @@ * * FreeType module error offsets (specification). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -171,6 +171,7 @@ FT_MODERRDEF( Type42, 0x1400, "Type 42 module" ) FT_MODERRDEF( Winfonts, 0x1500, "Windows FON/FNT module" ) FT_MODERRDEF( GXvalid, 0x1600, "GX validation module" ) + FT_MODERRDEF( Sdf, 0x1700, "Signed distance field raster module" ) #ifdef FT_MODERR_END_LIST diff --git a/include/freetype/ftotval.h b/include/freetype/ftotval.h index 9c00ad30b..00f972785 100644 --- a/include/freetype/ftotval.h +++ b/include/freetype/ftotval.h @@ -4,7 +4,7 @@ * * FreeType API for validating OpenType tables (specification). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftoutln.h b/include/freetype/ftoutln.h index 84e9b144c..6bb5f809a 100644 --- a/include/freetype/ftoutln.h +++ b/include/freetype/ftoutln.h @@ -5,7 +5,7 @@ * Support for the FT_Outline type used to store glyph shapes of * most scalable font formats (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftparams.h b/include/freetype/ftparams.h index 55ea2a387..04a3f4412 100644 --- a/include/freetype/ftparams.h +++ b/include/freetype/ftparams.h @@ -4,7 +4,7 @@ * * FreeType API for possible FT_Parameter tags (specification only). * - * Copyright (C) 2017-2020 by + * Copyright (C) 2017-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftpfr.h b/include/freetype/ftpfr.h index 9a5383f91..fbdb14c20 100644 --- a/include/freetype/ftpfr.h +++ b/include/freetype/ftpfr.h @@ -4,7 +4,7 @@ * * FreeType API for accessing PFR-specific data (specification only). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftrender.h b/include/freetype/ftrender.h index 8007951b3..48d489d49 100644 --- a/include/freetype/ftrender.h +++ b/include/freetype/ftrender.h @@ -4,7 +4,7 @@ * * FreeType renderer modules public interface (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftsizes.h b/include/freetype/ftsizes.h index a8682a30f..22366393b 100644 --- a/include/freetype/ftsizes.h +++ b/include/freetype/ftsizes.h @@ -4,7 +4,7 @@ * * FreeType size objects management (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftsnames.h b/include/freetype/ftsnames.h index 729e6ab06..c7f6581cb 100644 --- a/include/freetype/ftsnames.h +++ b/include/freetype/ftsnames.h @@ -7,7 +7,7 @@ * * This is _not_ used to retrieve glyph names! * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftstroke.h b/include/freetype/ftstroke.h index a759c94dd..88b2a8a4e 100644 --- a/include/freetype/ftstroke.h +++ b/include/freetype/ftstroke.h @@ -4,7 +4,7 @@ * * FreeType path stroker (specification). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftsynth.h b/include/freetype/ftsynth.h index bdb4c5753..861dcb5ac 100644 --- a/include/freetype/ftsynth.h +++ b/include/freetype/ftsynth.h @@ -5,7 +5,7 @@ * FreeType synthesizing code for emboldening and slanting * (specification). * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/ftsystem.h b/include/freetype/ftsystem.h index 22aead714..e5abb85a8 100644 --- a/include/freetype/ftsystem.h +++ b/include/freetype/ftsystem.h @@ -4,7 +4,7 @@ * * FreeType low-level system interface definition (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/fttrigon.h b/include/freetype/fttrigon.h index 2ce6b324c..dbe7b0d38 100644 --- a/include/freetype/fttrigon.h +++ b/include/freetype/fttrigon.h @@ -4,7 +4,7 @@ * * FreeType trigonometric functions (specification). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/fttypes.h b/include/freetype/fttypes.h index aaeb9e878..699bd003c 100644 --- a/include/freetype/fttypes.h +++ b/include/freetype/fttypes.h @@ -4,7 +4,7 @@ * * FreeType simple types definitions (specification only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -413,7 +413,7 @@ FT_BEGIN_HEADER typedef struct FT_Data_ { const FT_Byte* pointer; - FT_Int length; + FT_UInt length; } FT_Data; @@ -479,18 +479,17 @@ FT_BEGIN_HEADER * * @description: * This macro converts four-letter tags that are used to label TrueType - * tables into an unsigned long, to be used within FreeType. + * tables into an `FT_Tag` type, to be used within FreeType. * * @note: * The produced values **must** be 32-bit integers. Don't redefine this * macro. */ -#define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \ - (FT_Tag) \ - ( ( (FT_ULong)_x1 << 24 ) | \ - ( (FT_ULong)_x2 << 16 ) | \ - ( (FT_ULong)_x3 << 8 ) | \ - (FT_ULong)_x4 ) +#define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \ + ( ( FT_STATIC_BYTE_CAST( FT_Tag, _x1 ) << 24 ) | \ + ( FT_STATIC_BYTE_CAST( FT_Tag, _x2 ) << 16 ) | \ + ( FT_STATIC_BYTE_CAST( FT_Tag, _x3 ) << 8 ) | \ + FT_STATIC_BYTE_CAST( FT_Tag, _x4 ) ) /*************************************************************************/ @@ -588,7 +587,7 @@ FT_BEGIN_HEADER #define FT_IS_EMPTY( list ) ( (list).head == 0 ) -#define FT_BOOL( x ) ( (FT_Bool)( (x) != 0 ) ) +#define FT_BOOL( x ) FT_STATIC_CAST( FT_Bool, (x) != 0 ) /* concatenate C tokens */ #define FT_ERR_XCAT( x, y ) x ## y diff --git a/include/freetype/ftwinfnt.h b/include/freetype/ftwinfnt.h index 786528c6e..f30f447d8 100644 --- a/include/freetype/ftwinfnt.h +++ b/include/freetype/ftwinfnt.h @@ -4,7 +4,7 @@ * * FreeType API for accessing Windows fnt-specific data. * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -55,7 +55,7 @@ FT_BEGIN_HEADER * FT_WinFNT_ID_XXX * * @description: - * A list of valid values for the `charset` byte in @FT_WinFNT_HeaderRec. + * A list of valid values for the `charset` byte in @FT_WinFNT_HeaderRec. * Exact mapping tables for the various 'cpXXXX' encodings (except for * 'cp1361') can be found at 'ftp://ftp.unicode.org/Public/' in the * `MAPPINGS/VENDORS/MICSFT/WINDOWS` subdirectory. 'cp1361' is roughly a diff --git a/include/freetype/internal/autohint.h b/include/freetype/internal/autohint.h index 2a472e20b..01585f5ed 100644 --- a/include/freetype/internal/autohint.h +++ b/include/freetype/internal/autohint.h @@ -4,7 +4,7 @@ * * High-level 'autohint' module-specific interface (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/cffotypes.h b/include/freetype/internal/cffotypes.h index a316fd1f3..a91dd556c 100644 --- a/include/freetype/internal/cffotypes.h +++ b/include/freetype/internal/cffotypes.h @@ -4,7 +4,7 @@ * * Basic OpenType/CFF object type definitions (specification). * - * Copyright (C) 2017-2020 by + * Copyright (C) 2017-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/cfftypes.h b/include/freetype/internal/cfftypes.h index f21167b1e..99e8d4136 100644 --- a/include/freetype/internal/cfftypes.h +++ b/include/freetype/internal/cfftypes.h @@ -5,7 +5,7 @@ * Basic OpenType/CFF type definitions and interface (specification * only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/compiler-macros.h b/include/freetype/internal/compiler-macros.h index 97c18d3a2..d8b61b3dc 100644 --- a/include/freetype/internal/compiler-macros.h +++ b/include/freetype/internal/compiler-macros.h @@ -4,7 +4,7 @@ * * Compiler-specific macro definitions used internally by FreeType. * - * Copyright (C) 2020 by + * Copyright (C) 2020-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -71,12 +71,18 @@ FT_BEGIN_HEADER */ #define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT -#ifdef _WIN64 +#ifdef __UINTPTR_TYPE__ + /* + * GCC and Clang both provide a `__UINTPTR_TYPE__` that can be used to + * avoid a dependency on `stdint.h`. + */ +# define FT_UINT_TO_POINTER( x ) (void *)(__UINTPTR_TYPE__)(x) +#elif defined( _WIN64 ) /* only 64bit Windows uses the LLP64 data model, i.e., */ /* 32-bit integers, 64-bit pointers. */ -#define FT_UINT_TO_POINTER( x ) (void *)(unsigned __int64)(x) +# define FT_UINT_TO_POINTER( x ) (void *)(unsigned __int64)(x) #else -#define FT_UINT_TO_POINTER( x ) (void *)(unsigned long)(x) +# define FT_UINT_TO_POINTER( x ) (void *)(unsigned long)(x) #endif /* @@ -216,79 +222,91 @@ FT_BEGIN_HEADER #define FT_EXPORT_VAR( x ) FT_FUNCTION_DECLARATION( x ) #endif - /* When compiling FreeType as a DLL or DSO with hidden visibility, */ - /* some systems/compilers need a special attribute in front OR after */ - /* the return type of function declarations. */ - /* */ - /* Two macros are used within the FreeType source code to define */ - /* exported library functions: `FT_EXPORT` and `FT_EXPORT_DEF`. */ - /* */ - /* - `FT_EXPORT( return_type )` */ - /* */ - /* is used in a function declaration, as in */ - /* */ - /* ``` */ - /* FT_EXPORT( FT_Error ) */ - /* FT_Init_FreeType( FT_Library* alibrary ); */ - /* ``` */ - /* */ - /* - `FT_EXPORT_DEF( return_type )` */ - /* */ - /* is used in a function definition, as in */ - /* */ - /* ``` */ - /* FT_EXPORT_DEF( FT_Error ) */ - /* FT_Init_FreeType( FT_Library* alibrary ) */ - /* { */ - /* ... some code ... */ - /* return FT_Err_Ok; */ - /* } */ - /* ``` */ - /* */ - /* You can provide your own implementation of `FT_EXPORT` and */ - /* `FT_EXPORT_DEF` here if you want. */ - /* */ - /* To export a variable, use `FT_EXPORT_VAR`. */ - /* */ + /* + * When compiling FreeType as a DLL or DSO with hidden visibility, + * some systems/compilers need a special attribute in front OR after + * the return type of function declarations. + * + * Two macros are used within the FreeType source code to define + * exported library functions: `FT_EXPORT` and `FT_EXPORT_DEF`. + * + * - `FT_EXPORT( return_type )` + * + * is used in a function declaration, as in + * + * ``` + * FT_EXPORT( FT_Error ) + * FT_Init_FreeType( FT_Library* alibrary ); + * ``` + * + * - `FT_EXPORT_DEF( return_type )` + * + * is used in a function definition, as in + * + * ``` + * FT_EXPORT_DEF( FT_Error ) + * FT_Init_FreeType( FT_Library* alibrary ) + * { + * ... some code ... + * return FT_Err_Ok; + * } + * ``` + * + * You can provide your own implementation of `FT_EXPORT` and + * `FT_EXPORT_DEF` here if you want. + * + * To export a variable, use `FT_EXPORT_VAR`. + */ /* See `freetype/config/compiler_macros.h` for the `FT_EXPORT` definition */ #define FT_EXPORT_DEF( x ) FT_FUNCTION_DEFINITION( x ) - /* The following macros are needed to compile the library with a */ - /* C++ compiler and with 16bit compilers. */ - /* */ - - /* This is special. Within C++, you must specify `extern "C"` for */ - /* functions which are used via function pointers, and you also */ - /* must do that for structures which contain function pointers to */ - /* assure C linkage -- it's not possible to have (local) anonymous */ - /* functions which are accessed by (global) function pointers. */ - /* */ - /* */ - /* FT_CALLBACK_DEF is used to _define_ a callback function, */ - /* located in the same source code file as the structure that uses */ - /* it. */ - /* */ - /* FT_BASE_CALLBACK and FT_BASE_CALLBACK_DEF are used to declare */ - /* and define a callback function, respectively, in a similar way */ - /* as FT_BASE and FT_BASE_DEF work. */ - /* */ - /* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */ - /* contains pointers to callback functions. */ - /* */ - /* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable */ - /* that contains pointers to callback functions. */ - /* */ - /* */ - /* Some 16bit compilers have to redefine these macros to insert */ - /* the infamous `_cdecl` or `__fastcall` declarations. */ - /* */ + /* + * The following macros are needed to compile the library with a + * C++ compiler and with 16bit compilers. + */ + + /* + * This is special. Within C++, you must specify `extern "C"` for + * functions which are used via function pointers, and you also + * must do that for structures which contain function pointers to + * assure C linkage -- it's not possible to have (local) anonymous + * functions which are accessed by (global) function pointers. + * + * + * FT_CALLBACK_DEF is used to _define_ a callback function, + * located in the same source code file as the structure that uses + * it. FT_COMPARE_DEF, in addition, ensures the `cdecl` calling + * convention on x86, required by the C library function `qsort`. + * + * FT_BASE_CALLBACK and FT_BASE_CALLBACK_DEF are used to declare + * and define a callback function, respectively, in a similar way + * as FT_BASE and FT_BASE_DEF work. + * + * FT_CALLBACK_TABLE is used to _declare_ a constant variable that + * contains pointers to callback functions. + * + * FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable + * that contains pointers to callback functions. + * + * + * Some 16bit compilers have to redefine these macros to insert + * the infamous `_cdecl` or `__fastcall` declarations. + */ #ifdef __cplusplus #define FT_CALLBACK_DEF( x ) extern "C" x #else #define FT_CALLBACK_DEF( x ) static x #endif +#if defined( __i386__ ) +#define FT_COMPARE_DEF( x ) FT_CALLBACK_DEF( x ) __attribute__(( cdecl )) +#elif defined( _M_IX86 ) +#define FT_COMPARE_DEF( x ) FT_CALLBACK_DEF( x ) __cdecl +#else +#define FT_COMPARE_DEF( x ) FT_CALLBACK_DEF( x ) +#endif + #define FT_BASE_CALLBACK( x ) FT_FUNCTION_DECLARATION( x ) #define FT_BASE_CALLBACK_DEF( x ) FT_FUNCTION_DEFINITION( x ) diff --git a/include/freetype/internal/ftcalc.h b/include/freetype/internal/ftcalc.h index c65307472..f88e05531 100644 --- a/include/freetype/internal/ftcalc.h +++ b/include/freetype/internal/ftcalc.h @@ -4,7 +4,7 @@ * * Arithmetic computations (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -359,8 +359,8 @@ FT_BEGIN_HEADER #ifndef FT_CONFIG_OPTION_NO_ASSEMBLER -#if defined( __GNUC__ ) && \ - ( __GNUC__ > 3 || ( __GNUC__ == 3 && __GNUC_MINOR__ >= 4 ) ) +#if defined( __clang__ ) || ( defined( __GNUC__ ) && \ + ( __GNUC__ > 3 || ( __GNUC__ == 3 && __GNUC_MINOR__ >= 4 ) ) ) #if FT_SIZEOF_INT == 4 @@ -370,12 +370,25 @@ FT_BEGIN_HEADER #define FT_MSB( x ) ( 31 - __builtin_clzl( x ) ) -#endif /* __GNUC__ */ +#endif +#elif defined( _MSC_VER ) && _MSC_VER >= 1400 -#elif defined( _MSC_VER ) && ( _MSC_VER >= 1400 ) +#if defined( _WIN32_WCE ) -#if FT_SIZEOF_INT == 4 +#include <cmnintrin.h> +#pragma intrinsic( _CountLeadingZeros ) + +#define FT_MSB( x ) ( 31 - _CountLeadingZeros( x ) ) + +#elif defined( _M_ARM64 ) || defined( _M_ARM ) + +#include <intrin.h> +#pragma intrinsic( _CountLeadingZeros ) + +#define FT_MSB( x ) ( 31 - _CountLeadingZeros( x ) ) + +#elif defined( _M_IX86 ) || defined( _M_AMD64 ) || defined( _M_IA64 ) #include <intrin.h> #pragma intrinsic( _BitScanReverse ) @@ -391,15 +404,27 @@ FT_BEGIN_HEADER return (FT_Int32)where; } -#define FT_MSB( x ) ( FT_MSB_i386( x ) ) +#define FT_MSB( x ) FT_MSB_i386( x ) #endif -#endif /* _MSC_VER */ +#elif defined( __DECC ) || defined( __DECCXX ) + +#include <builtins.h> + +#define FT_MSB( x ) (FT_Int)( 63 - _leadz( x ) ) +#elif defined( _CRAYC ) + +#include <intrinsics.h> + +#define FT_MSB( x ) (FT_Int)( 31 - _leadz32( x ) ) + +#endif /* FT_MSB macro definitions */ #endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */ + #ifndef FT_MSB FT_BASE( FT_Int ) @@ -487,7 +512,7 @@ FT_BEGIN_HEADER #define NEG_INT32( a ) \ (FT_Int32)( (FT_UInt32)0 - (FT_UInt32)(a) ) -#ifdef FT_LONG64 +#ifdef FT_INT64 #define ADD_INT64( a, b ) \ (FT_Int64)( (FT_UInt64)(a) + (FT_UInt64)(b) ) @@ -498,7 +523,7 @@ FT_BEGIN_HEADER #define NEG_INT64( a ) \ (FT_Int64)( (FT_UInt64)0 - (FT_UInt64)(a) ) -#endif /* FT_LONG64 */ +#endif /* FT_INT64 */ FT_END_HEADER diff --git a/include/freetype/internal/ftdebug.h b/include/freetype/internal/ftdebug.h index df5357ad5..5e8d9294a 100644 --- a/include/freetype/internal/ftdebug.h +++ b/include/freetype/internal/ftdebug.h @@ -4,7 +4,7 @@ * * Debugging and logging component (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -31,9 +31,24 @@ #include "compiler-macros.h" +#ifdef FT_DEBUG_LOGGING +#define DLG_STATIC +#include <dlg/output.h> +#include <dlg/dlg.h> + +#include <freetype/ftlogging.h> +#endif /* FT_DEBUG_LOGGING */ + FT_BEGIN_HEADER + /* force the definition of FT_DEBUG_LEVEL_TRACE if FT_DEBUG_LOGGING is */ + /* already defined. */ + /* */ +#ifdef FT_DEBUG_LOGGING +#undef FT_DEBUG_LEVEL_TRACE +#define FT_DEBUG_LEVEL_TRACE +#endif /* force the definition of FT_DEBUG_LEVEL_ERROR if FT_DEBUG_LEVEL_TRACE */ /* is already defined; this simplifies the following #ifdefs */ @@ -82,21 +97,67 @@ FT_BEGIN_HEADER * Each component must define the macro FT_COMPONENT to a valid FT_Trace * value before using any TRACE macro. * + * To get consistent logging output, there should be no newline character + * (i.e., '\n') or a single trailing one in the message string of + * `FT_TRACEx` and `FT_ERROR`. */ -#ifdef FT_DEBUG_LEVEL_TRACE - /* we need two macros here to make cpp expand `FT_COMPONENT' */ -#define FT_TRACE_COMP( x ) FT_TRACE_COMP_( x ) -#define FT_TRACE_COMP_( x ) trace_ ## x + /************************************************************************* + * + * If FT_DEBUG_LOGGING is enabled, tracing messages are sent to dlg's API. + * If FT_DEBUG_LOGGING is disabled, tracing messages are sent to + * `FT_Message` (defined in ftdebug.c). + */ +#ifdef FT_DEBUG_LOGGING + + /* we need two macros to convert the names of `FT_COMPONENT` to a string */ +#define FT_LOGGING_TAG( x ) FT_LOGGING_TAG_( x ) +#define FT_LOGGING_TAG_( x ) #x -#define FT_TRACE( level, varformat ) \ + /* we need two macros to convert the component and the trace level */ + /* to a string that combines them */ +#define FT_LOGGING_TAGX( x, y ) FT_LOGGING_TAGX_( x, y ) +#define FT_LOGGING_TAGX_( x, y ) #x ":" #y + + +#define FT_LOG( level, varformat ) \ + do \ + { \ + const char* dlg_tag = FT_LOGGING_TAGX( FT_COMPONENT, level ); \ + \ + \ + ft_add_tag( dlg_tag ); \ + if ( ft_trace_levels[FT_TRACE_COMP( FT_COMPONENT )] >= level ) \ + { \ + if ( custom_output_handler != NULL ) \ + FT_Logging_Callback varformat; \ + else \ + dlg_trace varformat; \ + } \ + ft_remove_tag( dlg_tag ); \ + } while( 0 ) + +#else /* !FT_DEBUG_LOGGING */ + +#define FT_LOG( level, varformat ) \ do \ { \ if ( ft_trace_levels[FT_TRACE_COMP( FT_COMPONENT )] >= level ) \ FT_Message varformat; \ } while ( 0 ) +#endif /* !FT_DEBUG_LOGGING */ + + +#ifdef FT_DEBUG_LEVEL_TRACE + + /* we need two macros here to make cpp expand `FT_COMPONENT' */ +#define FT_TRACE_COMP( x ) FT_TRACE_COMP_( x ) +#define FT_TRACE_COMP_( x ) trace_ ## x + +#define FT_TRACE( level, varformat ) FT_LOG( level, varformat ) + #else /* !FT_DEBUG_LEVEL_TRACE */ #define FT_TRACE( level, varformat ) do { } while ( 0 ) /* nothing */ @@ -204,7 +265,32 @@ FT_BEGIN_HEADER #ifdef FT_DEBUG_LEVEL_ERROR -#define FT_ERROR( varformat ) FT_Message varformat + /************************************************************************** + * + * If FT_DEBUG_LOGGING is enabled, error messages are sent to dlg's API. + * If FT_DEBUG_LOGGING is disabled, error messages are sent to `FT_Message` + * (defined in ftdebug.c). + * + */ +#ifdef FT_DEBUG_LOGGING + +#define FT_ERROR( varformat ) \ + do \ + { \ + const char* dlg_tag = FT_LOGGING_TAG( FT_COMPONENT ); \ + \ + \ + ft_add_tag( dlg_tag ); \ + dlg_trace varformat; \ + ft_remove_tag( dlg_tag ); \ + } while ( 0 ) + +#else /* !FT_DEBUG_LOGGING */ + +#define FT_ERROR( varformat ) FT_Message varformat + +#endif /* !FT_DEBUG_LOGGING */ + #else /* !FT_DEBUG_LEVEL_ERROR */ @@ -277,6 +363,77 @@ FT_BEGIN_HEADER FT_BASE( void ) ft_debug_init( void ); + +#ifdef FT_DEBUG_LOGGING + + /************************************************************************** + * + * 'dlg' uses output handlers to control how and where log messages are + * printed. Therefore we need to define a default output handler for + * FreeType. + */ + FT_BASE( void ) + ft_log_handler( const struct dlg_origin* origin, + const char* string, + void* data ); + + + /************************************************************************** + * + * 1. `ft_default_log_handler` stores the function pointer that is used + * internally by FreeType to print logs to a file. + * + * 2. `custom_output_handler` stores the function pointer to the callback + * function provided by the user. + * + * It is defined in `ftdebug.c`. + */ + extern dlg_handler ft_default_log_handler; + extern FT_Custom_Log_Handler custom_output_handler; + + + /************************************************************************** + * + * If FT_DEBUG_LOGGING macro is enabled, FreeType needs to initialize and + * un-initialize `FILE*`. + * + * These functions are defined in `ftdebug.c`. + */ + FT_BASE( void ) + ft_logging_init( void ); + + FT_BASE( void ) + ft_logging_deinit( void ); + + + /************************************************************************** + * + * For printing the name of `FT_COMPONENT` along with the actual log we + * need to add a tag with the name of `FT_COMPONENT`. + * + * These functions are defined in `ftdebug.c`. + */ + FT_BASE( void ) + ft_add_tag( const char* tag ); + + FT_BASE( void ) + ft_remove_tag( const char* tag ); + + + /************************************************************************** + * + * A function to print log data using a custom callback logging function + * (which is set using `FT_Set_Log_Handler`). + * + * This function is defined in `ftdebug.c`. + */ + FT_BASE( void ) + FT_Logging_Callback( const char* fmt, + ... ); + +#endif /* FT_DEBUG_LOGGING */ + + FT_END_HEADER #endif /* FTDEBUG_H_ */ diff --git a/include/freetype/internal/ftdrv.h b/include/freetype/internal/ftdrv.h index 7f22710ea..0db323d5a 100644 --- a/include/freetype/internal/ftdrv.h +++ b/include/freetype/internal/ftdrv.h @@ -4,7 +4,7 @@ * * FreeType internal font driver interface (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/ftgloadr.h b/include/freetype/internal/ftgloadr.h index 27b8659f7..fea931c3a 100644 --- a/include/freetype/internal/ftgloadr.h +++ b/include/freetype/internal/ftgloadr.h @@ -4,7 +4,7 @@ * * The FreeType glyph loader (specification). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg * * This file is part of the FreeType project, and may only be used, @@ -22,6 +22,7 @@ #include <freetype/freetype.h> +#include "compiler-macros.h" FT_BEGIN_HEADER diff --git a/include/freetype/internal/ftmemory.h b/include/freetype/internal/ftmemory.h index ddb18b051..e20d94969 100644 --- a/include/freetype/internal/ftmemory.h +++ b/include/freetype/internal/ftmemory.h @@ -4,7 +4,7 @@ * * The FreeType memory management macros (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg * * This file is part of the FreeType project, and may only be used, @@ -344,14 +344,13 @@ extern "C++" #define FT_RENEW_ARRAY( ptr, curcnt, newcnt ) \ FT_MEM_SET_ERROR( FT_MEM_RENEW_ARRAY( ptr, curcnt, newcnt ) ) -#define FT_QNEW( ptr ) \ - FT_MEM_SET_ERROR( FT_MEM_QNEW( ptr ) ) +#define FT_QNEW( ptr ) FT_MEM_SET_ERROR( FT_MEM_QNEW( ptr ) ) -#define FT_QNEW_ARRAY( ptr, count ) \ - FT_MEM_SET_ERROR( FT_MEM_NEW_ARRAY( ptr, count ) ) +#define FT_QNEW_ARRAY( ptr, count ) \ + FT_MEM_SET_ERROR( FT_MEM_QNEW_ARRAY( ptr, count ) ) -#define FT_QRENEW_ARRAY( ptr, curcnt, newcnt ) \ - FT_MEM_SET_ERROR( FT_MEM_RENEW_ARRAY( ptr, curcnt, newcnt ) ) +#define FT_QRENEW_ARRAY( ptr, curcnt, newcnt ) \ + FT_MEM_SET_ERROR( FT_MEM_QRENEW_ARRAY( ptr, curcnt, newcnt ) ) FT_BASE( FT_Pointer ) diff --git a/include/freetype/internal/ftobjs.h b/include/freetype/internal/ftobjs.h index 25db2c494..e52a26aa0 100644 --- a/include/freetype/internal/ftobjs.h +++ b/include/freetype/internal/ftobjs.h @@ -4,7 +4,7 @@ * * The FreeType private base classes (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -673,7 +673,7 @@ FT_BEGIN_HEADER /* Set the metrics according to a size request. */ - FT_BASE( void ) + FT_BASE( FT_Error ) FT_Request_Metrics( FT_Face face, FT_Size_Request req ); diff --git a/include/freetype/internal/ftpsprop.h b/include/freetype/internal/ftpsprop.h index 81ec29151..d94d0d7e4 100644 --- a/include/freetype/internal/ftpsprop.h +++ b/include/freetype/internal/ftpsprop.h @@ -4,7 +4,7 @@ * * Get and set properties of PostScript drivers (specification). * - * Copyright (C) 2017-2020 by + * Copyright (C) 2017-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/ftrfork.h b/include/freetype/internal/ftrfork.h index 1b7b25acb..1c56d6ceb 100644 --- a/include/freetype/internal/ftrfork.h +++ b/include/freetype/internal/ftrfork.h @@ -4,7 +4,7 @@ * * Embedded resource forks accessor (specification). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * Masatake YAMATO and Redhat K.K. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/ftserv.h b/include/freetype/internal/ftserv.h index 6e1a9472d..fa82c31fc 100644 --- a/include/freetype/internal/ftserv.h +++ b/include/freetype/internal/ftserv.h @@ -4,7 +4,7 @@ * * The FreeType services (specification only). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/ftstream.h b/include/freetype/internal/ftstream.h index e7d922260..7f3af120c 100644 --- a/include/freetype/internal/ftstream.h +++ b/include/freetype/internal/ftstream.h @@ -4,7 +4,7 @@ * * Stream handling (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -196,9 +196,9 @@ FT_BEGIN_HEADER FT_BYTE_U32( p, 2, 8 ) | \ FT_BYTE_U32( p, 3, 0 ) ) -#define FT_PEEK_OFF3( p ) FT_INT32( FT_BYTE_U32( p, 0, 16 ) | \ - FT_BYTE_U32( p, 1, 8 ) | \ - FT_BYTE_U32( p, 2, 0 ) ) +#define FT_PEEK_OFF3( p ) ( FT_INT32( FT_BYTE_U32( p, 0, 24 ) | \ + FT_BYTE_U32( p, 1, 16 ) | \ + FT_BYTE_U32( p, 2, 8 ) ) >> 8 ) #define FT_PEEK_UOFF3( p ) FT_UINT32( FT_BYTE_U32( p, 0, 16 ) | \ FT_BYTE_U32( p, 1, 8 ) | \ @@ -220,9 +220,9 @@ FT_BEGIN_HEADER FT_BYTE_U32( p, 1, 8 ) | \ FT_BYTE_U32( p, 0, 0 ) ) -#define FT_PEEK_OFF3_LE( p ) FT_INT32( FT_BYTE_U32( p, 2, 16 ) | \ - FT_BYTE_U32( p, 1, 8 ) | \ - FT_BYTE_U32( p, 0, 0 ) ) +#define FT_PEEK_OFF3_LE( p ) ( FT_INT32( FT_BYTE_U32( p, 2, 24 ) | \ + FT_BYTE_U32( p, 1, 16 ) | \ + FT_BYTE_U32( p, 0, 8 ) ) >> 8 ) #define FT_PEEK_UOFF3_LE( p ) FT_UINT32( FT_BYTE_U32( p, 2, 16 ) | \ FT_BYTE_U32( p, 1, 8 ) | \ @@ -305,11 +305,10 @@ FT_BEGIN_HEADER #else #define FT_GET_MACRO( func, type ) ( (type)func( stream ) ) -#define FT_GET_CHAR() FT_GET_MACRO( FT_Stream_GetChar, FT_Char ) -#define FT_GET_BYTE() FT_GET_MACRO( FT_Stream_GetChar, FT_Byte ) +#define FT_GET_CHAR() FT_GET_MACRO( FT_Stream_GetByte, FT_Char ) +#define FT_GET_BYTE() FT_GET_MACRO( FT_Stream_GetByte, FT_Byte ) #define FT_GET_SHORT() FT_GET_MACRO( FT_Stream_GetUShort, FT_Short ) #define FT_GET_USHORT() FT_GET_MACRO( FT_Stream_GetUShort, FT_UShort ) -#define FT_GET_OFF3() FT_GET_MACRO( FT_Stream_GetUOffset, FT_Long ) #define FT_GET_UOFF3() FT_GET_MACRO( FT_Stream_GetUOffset, FT_ULong ) #define FT_GET_LONG() FT_GET_MACRO( FT_Stream_GetULong, FT_Long ) #define FT_GET_ULONG() FT_GET_MACRO( FT_Stream_GetULong, FT_ULong ) @@ -333,11 +332,10 @@ FT_BEGIN_HEADER * `FT_STREAM_POS'. They use the full machinery to check whether a read is * valid. */ -#define FT_READ_BYTE( var ) FT_READ_MACRO( FT_Stream_ReadChar, FT_Byte, var ) -#define FT_READ_CHAR( var ) FT_READ_MACRO( FT_Stream_ReadChar, FT_Char, var ) +#define FT_READ_BYTE( var ) FT_READ_MACRO( FT_Stream_ReadByte, FT_Byte, var ) +#define FT_READ_CHAR( var ) FT_READ_MACRO( FT_Stream_ReadByte, FT_Char, var ) #define FT_READ_SHORT( var ) FT_READ_MACRO( FT_Stream_ReadUShort, FT_Short, var ) #define FT_READ_USHORT( var ) FT_READ_MACRO( FT_Stream_ReadUShort, FT_UShort, var ) -#define FT_READ_OFF3( var ) FT_READ_MACRO( FT_Stream_ReadUOffset, FT_Long, var ) #define FT_READ_UOFF3( var ) FT_READ_MACRO( FT_Stream_ReadUOffset, FT_ULong, var ) #define FT_READ_LONG( var ) FT_READ_MACRO( FT_Stream_ReadULong, FT_Long, var ) #define FT_READ_ULONG( var ) FT_READ_MACRO( FT_Stream_ReadULong, FT_ULong, var ) @@ -457,8 +455,8 @@ FT_BEGIN_HEADER /* read a byte from an entered frame */ - FT_BASE( FT_Char ) - FT_Stream_GetChar( FT_Stream stream ); + FT_BASE( FT_Byte ) + FT_Stream_GetByte( FT_Stream stream ); /* read a 16-bit big-endian unsigned integer from an entered frame */ FT_BASE( FT_UShort ) @@ -482,8 +480,8 @@ FT_BEGIN_HEADER /* read a byte from a stream */ - FT_BASE( FT_Char ) - FT_Stream_ReadChar( FT_Stream stream, + FT_BASE( FT_Byte ) + FT_Stream_ReadByte( FT_Stream stream, FT_Error* error ); /* read a 16-bit big-endian unsigned integer from a stream */ diff --git a/include/freetype/internal/fttrace.h b/include/freetype/internal/fttrace.h index 58bd77413..3307556bf 100644 --- a/include/freetype/internal/fttrace.h +++ b/include/freetype/internal/fttrace.h @@ -4,7 +4,7 @@ * * Tracing handling (specification only). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -18,6 +18,11 @@ /* definitions of trace levels for FreeType 2 */ + /* the maximum string length (if the argument to `FT_TRACE_DEF` */ + /* gets used as a string) plus one charachter for ':' plus */ + /* another one for the trace level */ +#define FT_MAX_TRACE_LEVEL_LENGTH (9 + 1 + 1) + /* the first level must always be `trace_any' */ FT_TRACE_DEF( any ) @@ -38,12 +43,14 @@ FT_TRACE_DEF( checksum ) /* bitmap checksum (ftobjs.c) */ FT_TRACE_DEF( mm ) /* MM interface (ftmm.c) */ FT_TRACE_DEF( psprops ) /* PS driver properties (ftpsprop.c) */ FT_TRACE_DEF( raccess ) /* resource fork accessor (ftrfork.c) */ +FT_TRACE_DEF( synth ) /* bold/slant synthesizer (ftsynth.c) */ + + /* rasterizers */ FT_TRACE_DEF( raster ) /* monochrome rasterizer (ftraster.c) */ FT_TRACE_DEF( smooth ) /* anti-aliasing raster (ftgrays.c) */ -FT_TRACE_DEF( synth ) /* bold/slant synthesizer (ftsynth.c) */ - /* Cache sub-system */ -FT_TRACE_DEF( cache ) /* cache sub-system (ftcache.c, etc.) */ + /* cache sub-system */ +FT_TRACE_DEF( cache ) /* cache sub-system (ftcache.c, etc.) */ /* SFNT driver components */ FT_TRACE_DEF( sfdriver ) /* SFNT font driver (sfdriver.c) */ @@ -77,6 +84,7 @@ FT_TRACE_DEF( t1objs ) FT_TRACE_DEF( t1parse ) /* PostScript helper module `psaux' */ +FT_TRACE_DEF( afmparse ) FT_TRACE_DEF( cffdecode ) FT_TRACE_DEF( psconv ) FT_TRACE_DEF( psobjs ) @@ -151,8 +159,10 @@ FT_TRACE_DEF( afglobal ) FT_TRACE_DEF( afhints ) FT_TRACE_DEF( afmodule ) FT_TRACE_DEF( aflatin ) -FT_TRACE_DEF( aflatin2 ) FT_TRACE_DEF( afshaper ) -FT_TRACE_DEF( afwarp ) + + /* SDF components */ +FT_TRACE_DEF( sdf ) /* signed distance raster for outlines (ftsdf.c) */ +FT_TRACE_DEF( bsdf ) /* signed distance raster for bitmaps (ftbsdf.c) */ /* END */ diff --git a/include/freetype/internal/ftvalid.h b/include/freetype/internal/ftvalid.h index a5bc6c9b5..7bdfa62f3 100644 --- a/include/freetype/internal/ftvalid.h +++ b/include/freetype/internal/ftvalid.h @@ -4,7 +4,7 @@ * * FreeType validation support (specification). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/psaux.h b/include/freetype/internal/psaux.h index 8e0a262fd..6c6399aa1 100644 --- a/include/freetype/internal/psaux.h +++ b/include/freetype/internal/psaux.h @@ -5,7 +5,7 @@ * Auxiliary functions and data structures related to PostScript fonts * (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/pshints.h b/include/freetype/internal/pshints.h index 663e9d348..9dbb0776b 100644 --- a/include/freetype/internal/pshints.h +++ b/include/freetype/internal/pshints.h @@ -6,7 +6,7 @@ * recorders (specification only). These are used to support native * T1/T2 hints in the 'type1', 'cid', and 'cff' font drivers. * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/services/svbdf.h b/include/freetype/internal/services/svbdf.h index 81f5a06b6..879aa6138 100644 --- a/include/freetype/internal/services/svbdf.h +++ b/include/freetype/internal/services/svbdf.h @@ -4,7 +4,7 @@ * * The FreeType BDF services (specification). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/services/svcfftl.h b/include/freetype/internal/services/svcfftl.h index 1d2dbb6a8..f6424e424 100644 --- a/include/freetype/internal/services/svcfftl.h +++ b/include/freetype/internal/services/svcfftl.h @@ -4,7 +4,7 @@ * * The FreeType CFF tables loader service (specification). * - * Copyright (C) 2017-2020 by + * Copyright (C) 2017-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/services/svcid.h b/include/freetype/internal/services/svcid.h index bd49f3270..7ef5afd0b 100644 --- a/include/freetype/internal/services/svcid.h +++ b/include/freetype/internal/services/svcid.h @@ -4,7 +4,7 @@ * * The FreeType CID font services (specification). * - * Copyright (C) 2007-2020 by + * Copyright (C) 2007-2021 by * Derek Clegg and Michael Toftdal. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/services/svfntfmt.h b/include/freetype/internal/services/svfntfmt.h index 6114d638a..cc87fc122 100644 --- a/include/freetype/internal/services/svfntfmt.h +++ b/include/freetype/internal/services/svfntfmt.h @@ -4,7 +4,7 @@ * * The FreeType font format service (specification only). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/services/svgldict.h b/include/freetype/internal/services/svgldict.h index f9443e40d..4256f14a0 100644 --- a/include/freetype/internal/services/svgldict.h +++ b/include/freetype/internal/services/svgldict.h @@ -4,7 +4,7 @@ * * The FreeType glyph dictionary services (specification). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/services/svgxval.h b/include/freetype/internal/services/svgxval.h index 83c2f26ce..f36d55602 100644 --- a/include/freetype/internal/services/svgxval.h +++ b/include/freetype/internal/services/svgxval.h @@ -4,7 +4,7 @@ * * FreeType API for validating TrueTypeGX/AAT tables (specification). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * diff --git a/include/freetype/internal/services/svkern.h b/include/freetype/internal/services/svkern.h index 13cfb3272..99dc2d97a 100644 --- a/include/freetype/internal/services/svkern.h +++ b/include/freetype/internal/services/svkern.h @@ -4,7 +4,7 @@ * * The FreeType Kerning service (specification). * - * Copyright (C) 2006-2020 by + * Copyright (C) 2006-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/services/svmetric.h b/include/freetype/internal/services/svmetric.h index 2b30edaab..b9c95a7c9 100644 --- a/include/freetype/internal/services/svmetric.h +++ b/include/freetype/internal/services/svmetric.h @@ -4,7 +4,7 @@ * * The FreeType services for metrics variations (specification). * - * Copyright (C) 2016-2020 by + * Copyright (C) 2016-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/services/svmm.h b/include/freetype/internal/services/svmm.h index 5a807636a..8eac3a3fe 100644 --- a/include/freetype/internal/services/svmm.h +++ b/include/freetype/internal/services/svmm.h @@ -4,7 +4,7 @@ * * The FreeType Multiple Masters and GX var services (specification). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/services/svotval.h b/include/freetype/internal/services/svotval.h index 763fb2efb..7afb49e82 100644 --- a/include/freetype/internal/services/svotval.h +++ b/include/freetype/internal/services/svotval.h @@ -4,7 +4,7 @@ * * The FreeType OpenType validation service (specification). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/services/svpfr.h b/include/freetype/internal/services/svpfr.h index bdeba0785..98442bf83 100644 --- a/include/freetype/internal/services/svpfr.h +++ b/include/freetype/internal/services/svpfr.h @@ -4,7 +4,7 @@ * * Internal PFR service functions (specification). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/services/svpostnm.h b/include/freetype/internal/services/svpostnm.h index 8ef62c5f9..5a25c5a58 100644 --- a/include/freetype/internal/services/svpostnm.h +++ b/include/freetype/internal/services/svpostnm.h @@ -4,7 +4,7 @@ * * The FreeType PostScript name services (specification). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/services/svprop.h b/include/freetype/internal/services/svprop.h index 8f755436a..9b71000c5 100644 --- a/include/freetype/internal/services/svprop.h +++ b/include/freetype/internal/services/svprop.h @@ -4,7 +4,7 @@ * * The FreeType property service (specification). * - * Copyright (C) 2012-2020 by + * Copyright (C) 2012-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/services/svpscmap.h b/include/freetype/internal/services/svpscmap.h index b4dcd8075..346f5e2a7 100644 --- a/include/freetype/internal/services/svpscmap.h +++ b/include/freetype/internal/services/svpscmap.h @@ -4,7 +4,7 @@ * * The FreeType PostScript charmap service (specification). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/services/svpsinfo.h b/include/freetype/internal/services/svpsinfo.h index 1e7276ff4..49aa4d565 100644 --- a/include/freetype/internal/services/svpsinfo.h +++ b/include/freetype/internal/services/svpsinfo.h @@ -4,7 +4,7 @@ * * The FreeType PostScript info service (specification). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/services/svsfnt.h b/include/freetype/internal/services/svsfnt.h index 39c8b5e19..4306cbc1b 100644 --- a/include/freetype/internal/services/svsfnt.h +++ b/include/freetype/internal/services/svsfnt.h @@ -4,7 +4,7 @@ * * The FreeType SFNT table loading service (specification). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/services/svttcmap.h b/include/freetype/internal/services/svttcmap.h index c18bb2336..775b6bcf2 100644 --- a/include/freetype/internal/services/svttcmap.h +++ b/include/freetype/internal/services/svttcmap.h @@ -4,7 +4,7 @@ * * The FreeType TrueType/sfnt cmap extra information service. * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * Masatake YAMATO, Redhat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * diff --git a/include/freetype/internal/services/svtteng.h b/include/freetype/internal/services/svtteng.h index 7a17e4a75..964934284 100644 --- a/include/freetype/internal/services/svtteng.h +++ b/include/freetype/internal/services/svtteng.h @@ -4,7 +4,7 @@ * * The FreeType TrueType engine query service (specification). * - * Copyright (C) 2006-2020 by + * Copyright (C) 2006-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/services/svttglyf.h b/include/freetype/internal/services/svttglyf.h index 90a81dd40..4268467b7 100644 --- a/include/freetype/internal/services/svttglyf.h +++ b/include/freetype/internal/services/svttglyf.h @@ -4,7 +4,7 @@ * * The FreeType TrueType glyph service. * - * Copyright (C) 2007-2020 by + * Copyright (C) 2007-2021 by * David Turner. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/services/svwinfnt.h b/include/freetype/internal/services/svwinfnt.h index 8c915f525..aa70aa44d 100644 --- a/include/freetype/internal/services/svwinfnt.h +++ b/include/freetype/internal/services/svwinfnt.h @@ -4,7 +4,7 @@ * * The FreeType Windows FNT/FONT service (specification). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/sfnt.h b/include/freetype/internal/sfnt.h index b4c12dbb2..bf4c7e09f 100644 --- a/include/freetype/internal/sfnt.h +++ b/include/freetype/internal/sfnt.h @@ -4,7 +4,7 @@ * * High-level 'sfnt' driver interface (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -527,6 +527,170 @@ FT_BEGIN_HEADER /************************************************************************** * * @functype: + * TT_Get_Color_Glyph_Paint_Func + * + * @description: + * Find the root @FT_OpaquePaint object for a given glyph ID. + * + * @input: + * face :: + * The target face object. + * + * base_glyph :: + * The glyph index the colored glyph layers are associated with. + * + * @output: + * paint :: + * The root @FT_OpaquePaint object. + * + * @return: + * Value~1 if everything is OK. If no color glyph is found, or the root + * paint could not be retrieved, value~0 gets returned. In case of an + * error, value~0 is returned also. + */ + typedef FT_Bool + ( *TT_Get_Color_Glyph_Paint_Func )( TT_Face face, + FT_UInt base_glyph, + FT_Color_Root_Transform root_transform, + FT_OpaquePaint *paint ); + + + /************************************************************************** + * + * @functype: + * TT_Get_Color_Glyph_ClipBox_Func + * + * @description: + * Search for a 'COLR' v1 clip box for the specified `base_glyph` and + * fill the `clip_box` parameter with the 'COLR' v1 'ClipBox' information + * if one is found. + * + * @input: + * face :: + * A handle to the parent face object. + * + * base_glyph :: + * The glyph index for which to retrieve the clip box. + * + * @output: + * clip_box :: + * The clip box for the requested `base_glyph` if one is found. The + * clip box is computed taking scale and transformations configured on + * the @FT_Face into account. @FT_ClipBox contains @FT_Vector values + * in 26.6 format. + * + * @note: + * To retrieve the clip box in font units, reset scale to units-per-em + * and remove transforms configured using @FT_Set_Transform. + * + * @return: + * Value~1 if a ClipBox is found. If no clip box is found or an + * error occured, value~0 is returned. + */ + typedef FT_Bool + ( *TT_Get_Color_Glyph_ClipBox_Func )( TT_Face face, + FT_UInt base_glyph, + FT_ClipBox* clip_box ); + + + /************************************************************************** + * + * @functype: + * TT_Get_Paint_Layers_Func + * + * @description: + * Access the layers of a `PaintColrLayers` table. + * + * @input: + * face :: + * The target face object. + * + * @inout: + * iterator :: + * The @FT_LayerIterator from an @FT_PaintColrLayers object, for which + * the layers are to be retrieved. The internal state of the iterator + * is incremented after one call to this function for retrieving one + * layer. + * + * @output: + * paint :: + * The root @FT_OpaquePaint object referencing the actual paint table. + * + * @return: + * Value~1 if everything is OK. Value~0 gets returned when the paint + * object can not be retrieved or any other error occurs. + */ + typedef FT_Bool + ( *TT_Get_Paint_Layers_Func )( TT_Face face, + FT_LayerIterator* iterator, + FT_OpaquePaint *paint ); + + + /************************************************************************** + * + * @functype: + * TT_Get_Colorline_Stops_Func + * + * @description: + * Get the gradient and solid fill information for a given glyph. + * + * @input: + * face :: + * The target face object. + * + * @inout: + * iterator :: + * An @FT_ColorStopIterator object. For the first call you should set + * `iterator->p` to `NULL`. For all following calls, simply use the + * same object again. + * + * @output: + * color_stop :: + * Color index and alpha value for the retrieved color stop. + * + * @return: + * Value~1 if everything is OK. If there are no more color stops, + * value~0 gets returned. In case of an error, value~0 is returned + * also. + */ + typedef FT_Bool + ( *TT_Get_Colorline_Stops_Func )( TT_Face face, + FT_ColorStop *color_stop, + FT_ColorStopIterator* iterator ); + + + /************************************************************************** + * + * @functype: + * TT_Get_Paint_Func + * + * @description: + * Get the paint details for a given @FT_OpaquePaint object. + * + * @input: + * face :: + * The target face object. + * + * opaque_paint :: + * The @FT_OpaquePaint object. + * + * @output: + * paint :: + * An @FT_COLR_Paint object holding the details on `opaque_paint`. + * + * @return: + * Value~1 if everything is OK. Value~0 if no details can be found for + * this paint or any other error occured. + */ + typedef FT_Bool + ( *TT_Get_Paint_Func )( TT_Face face, + FT_OpaquePaint opaque_paint, + FT_COLR_Paint *paint ); + + + /************************************************************************** + * + * @functype: * TT_Blend_Colr_Func * * @description: @@ -709,73 +873,78 @@ FT_BEGIN_HEADER */ typedef struct SFNT_Interface_ { - TT_Loader_GotoTableFunc goto_table; + TT_Loader_GotoTableFunc goto_table; - TT_Init_Face_Func init_face; - TT_Load_Face_Func load_face; - TT_Done_Face_Func done_face; - FT_Module_Requester get_interface; + TT_Init_Face_Func init_face; + TT_Load_Face_Func load_face; + TT_Done_Face_Func done_face; + FT_Module_Requester get_interface; - TT_Load_Any_Func load_any; + TT_Load_Any_Func load_any; /* these functions are called by `load_face' but they can also */ /* be called from external modules, if there is a need to do so */ - TT_Load_Table_Func load_head; - TT_Load_Metrics_Func load_hhea; - TT_Load_Table_Func load_cmap; - TT_Load_Table_Func load_maxp; - TT_Load_Table_Func load_os2; - TT_Load_Table_Func load_post; + TT_Load_Table_Func load_head; + TT_Load_Metrics_Func load_hhea; + TT_Load_Table_Func load_cmap; + TT_Load_Table_Func load_maxp; + TT_Load_Table_Func load_os2; + TT_Load_Table_Func load_post; - TT_Load_Table_Func load_name; - TT_Free_Table_Func free_name; + TT_Load_Table_Func load_name; + TT_Free_Table_Func free_name; /* this field was called `load_kerning' up to version 2.1.10 */ - TT_Load_Table_Func load_kern; + TT_Load_Table_Func load_kern; - TT_Load_Table_Func load_gasp; - TT_Load_Table_Func load_pclt; + TT_Load_Table_Func load_gasp; + TT_Load_Table_Func load_pclt; /* see `ttload.h'; this field was called `load_bitmap_header' up to */ /* version 2.1.10 */ - TT_Load_Table_Func load_bhed; + TT_Load_Table_Func load_bhed; - TT_Load_SBit_Image_Func load_sbit_image; + TT_Load_SBit_Image_Func load_sbit_image; /* see `ttpost.h' */ - TT_Get_PS_Name_Func get_psname; - TT_Free_Table_Func free_psnames; + TT_Get_PS_Name_Func get_psname; + TT_Free_Table_Func free_psnames; /* starting here, the structure differs from version 2.1.7 */ /* this field was introduced in version 2.1.8, named `get_psname' */ - TT_Face_GetKerningFunc get_kerning; + TT_Face_GetKerningFunc get_kerning; /* new elements introduced after version 2.1.10 */ /* load the font directory, i.e., the offset table and */ /* the table directory */ - TT_Load_Table_Func load_font_dir; - TT_Load_Metrics_Func load_hmtx; + TT_Load_Table_Func load_font_dir; + TT_Load_Metrics_Func load_hmtx; - TT_Load_Table_Func load_eblc; - TT_Free_Table_Func free_eblc; + TT_Load_Table_Func load_eblc; + TT_Free_Table_Func free_eblc; TT_Set_SBit_Strike_Func set_sbit_strike; TT_Load_Strike_Metrics_Func load_strike_metrics; - TT_Load_Table_Func load_cpal; - TT_Load_Table_Func load_colr; - TT_Free_Table_Func free_cpal; - TT_Free_Table_Func free_colr; - TT_Set_Palette_Func set_palette; - TT_Get_Colr_Layer_Func get_colr_layer; - TT_Blend_Colr_Func colr_blend; + TT_Load_Table_Func load_cpal; + TT_Load_Table_Func load_colr; + TT_Free_Table_Func free_cpal; + TT_Free_Table_Func free_colr; + TT_Set_Palette_Func set_palette; + TT_Get_Colr_Layer_Func get_colr_layer; + TT_Get_Color_Glyph_Paint_Func get_colr_glyph_paint; + TT_Get_Color_Glyph_ClipBox_Func get_color_glyph_clipbox; + TT_Get_Paint_Layers_Func get_paint_layers; + TT_Get_Colorline_Stops_Func get_colorline_stops; + TT_Get_Paint_Func get_paint; + TT_Blend_Colr_Func colr_blend; - TT_Get_Metrics_Func get_metrics; + TT_Get_Metrics_Func get_metrics; - TT_Get_Name_Func get_name; - TT_Get_Name_ID_Func get_name_id; + TT_Get_Name_Func get_name; + TT_Get_Name_ID_Func get_name_id; } SFNT_Interface; @@ -820,6 +989,11 @@ FT_BEGIN_HEADER free_colr_, \ set_palette_, \ get_colr_layer_, \ + get_colr_glyph_paint_, \ + get_color_glyph_clipbox, \ + get_paint_layers_, \ + get_colorline_stops_, \ + get_paint_, \ colr_blend_, \ get_metrics_, \ get_name_, \ @@ -860,6 +1034,11 @@ FT_BEGIN_HEADER free_colr_, \ set_palette_, \ get_colr_layer_, \ + get_colr_glyph_paint_, \ + get_color_glyph_clipbox, \ + get_paint_layers_, \ + get_colorline_stops_, \ + get_paint_, \ colr_blend_, \ get_metrics_, \ get_name_, \ diff --git a/include/freetype/internal/t1types.h b/include/freetype/internal/t1types.h index 6a0fe5e97..023c5d08a 100644 --- a/include/freetype/internal/t1types.h +++ b/include/freetype/internal/t1types.h @@ -5,7 +5,7 @@ * Basic Type1/Type2 type definitions and interface (specification * only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/internal/tttypes.h b/include/freetype/internal/tttypes.h index c36342c93..651131c8d 100644 --- a/include/freetype/internal/tttypes.h +++ b/include/freetype/internal/tttypes.h @@ -5,7 +5,7 @@ * Basic SFNT/TrueType type definitions and interface (specification * only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -1372,7 +1372,7 @@ FT_BEGIN_HEADER * * num_locations :: * The number of glyph locations in this TrueType file. This should be - * identical to the number of glyphs. Ignored for Type 2 fonts. + * one more than the number of glyphs. Ignored for Type 2 fonts. * * glyph_locations :: * An array of longs. These are offsets to glyph data within the @@ -1598,7 +1598,7 @@ FT_BEGIN_HEADER FT_ULong horz_metrics_size; FT_ULong vert_metrics_size; - FT_ULong num_locations; /* in broken TTF, gid > 0xFFFF */ + FT_ULong num_locations; /* up to 0xFFFF + 1 */ FT_Byte* glyph_locations; FT_Byte* hdmx_table; @@ -1734,7 +1734,7 @@ FT_BEGIN_HEADER FT_UInt glyph_index; FT_Stream stream; - FT_Int byte_len; + FT_UInt byte_len; FT_Short n_contours; FT_BBox bbox; diff --git a/include/freetype/internal/wofftypes.h b/include/freetype/internal/wofftypes.h index 1874a138a..c460107c4 100644 --- a/include/freetype/internal/wofftypes.h +++ b/include/freetype/internal/wofftypes.h @@ -5,7 +5,7 @@ * Basic WOFF/WOFF2 type definitions and interface (specification * only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -92,7 +92,7 @@ FT_BEGIN_HEADER */ typedef struct WOFF_TableRec_ { - FT_ULong Tag; /* table ID */ + FT_Tag Tag; /* table ID */ FT_ULong Offset; /* table file offset */ FT_ULong CompLength; /* compressed table length */ FT_ULong OrigLength; /* uncompressed table length */ @@ -191,7 +191,7 @@ FT_BEGIN_HEADER typedef struct WOFF2_TableRec_ { FT_Byte FlagByte; /* table type and flags */ - FT_ULong Tag; /* table file offset */ + FT_Tag Tag; /* table file offset */ FT_ULong dst_length; /* uncompressed table length */ FT_ULong TransformLength; /* transformed length */ diff --git a/include/freetype/t1tables.h b/include/freetype/t1tables.h index 426e14024..a5f6ae721 100644 --- a/include/freetype/t1tables.h +++ b/include/freetype/t1tables.h @@ -5,7 +5,7 @@ * Basic Type 1/Type 2 tables definitions and interface (specification * only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -360,7 +360,7 @@ FT_BEGIN_HEADER FT_UInt num_subrs; FT_ULong subrmap_offset; - FT_Int sd_bytes; + FT_UInt sd_bytes; } CID_FaceDictRec; @@ -415,11 +415,11 @@ FT_BEGIN_HEADER FT_ULong xuid[16]; FT_ULong cidmap_offset; - FT_Int fd_bytes; - FT_Int gd_bytes; + FT_UInt fd_bytes; + FT_UInt gd_bytes; FT_ULong cid_count; - FT_Int num_dicts; + FT_UInt num_dicts; CID_FaceDict font_dicts; FT_ULong data_offset; diff --git a/include/freetype/ttnameid.h b/include/freetype/ttnameid.h index 2b2ed4c61..a09950f54 100644 --- a/include/freetype/ttnameid.h +++ b/include/freetype/ttnameid.h @@ -4,7 +4,7 @@ * * TrueType name ID definitions (specification only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -591,7 +591,7 @@ FT_BEGIN_HEADER #define TT_MS_LANGID_MALAY_MALAYSIA 0x043E #define TT_MS_LANGID_MALAY_BRUNEI_DARUSSALAM 0x083E #define TT_MS_LANGID_KAZAKH_KAZAKHSTAN 0x043F -#define TT_MS_LANGID_KYRGYZ_KYRGYZSTAN /* Cyrillic*/ 0x0440 +#define TT_MS_LANGID_KYRGYZ_KYRGYZSTAN /* Cyrillic */ 0x0440 #define TT_MS_LANGID_KISWAHILI_KENYA 0x0441 #define TT_MS_LANGID_TURKMEN_TURKMENISTAN 0x0442 #define TT_MS_LANGID_UZBEK_UZBEKISTAN_LATIN 0x0443 diff --git a/include/freetype/tttables.h b/include/freetype/tttables.h index c8fa35ef8..c33d99059 100644 --- a/include/freetype/tttables.h +++ b/include/freetype/tttables.h @@ -5,7 +5,7 @@ * Basic SFNT/TrueType tables definitions and interface * (specification only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/freetype/tttags.h b/include/freetype/tttags.h index 3c9fbd59d..47ccc6ddf 100644 --- a/include/freetype/tttags.h +++ b/include/freetype/tttags.h @@ -4,7 +4,7 @@ * * Tags for TrueType and OpenType tables (specification only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/include/ft2build.h b/include/ft2build.h index b4fd1f8c3..62686b1b2 100644 --- a/include/ft2build.h +++ b/include/ft2build.h @@ -4,7 +4,7 @@ * * FreeType 2 build and setup macros. * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/meson.build b/meson.build index ea304954e..9998848d5 100644 --- a/meson.build +++ b/meson.build @@ -2,7 +2,7 @@ # Meson project file for FreeType 2 # -# Copyright (C) 2020 by +# Copyright (C) 2020-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -11,34 +11,45 @@ # indicate that you have read the license and understand and accept it # fully. +# +# Say +# +# meson configure +# +# to see all configuration options and their default values. For example, +# to build only a shared version of FreeType, override the default value +# with +# +# meson setup -Ddefault_library=shared +# project('freetype2', 'c', meson_version: '>= 0.55.0', default_options: ['default_library=both'], + version: run_command('builds/meson/extract_freetype_version.py', + 'include/freetype/freetype.h').stdout().strip(), ) -# -# Rules to compile the FreeType 2 library itself -# - -# Apparently meson doesn't provide a read_file() function, so instead -# running an external command is required. +# Only meson >= 0.57 can read a file and assign its contents to a +# variable; we thus use an external command to have this functionality +# with older versions, too. python = import('python') python_exe = python.find_installation(required: true) -ft2_version = run_command(python_exe, - files('builds/meson/extract_freetype_version.py'), - files('include/freetype/freetype.h')).stdout().strip() - -ft2_libtool_version = run_command(python_exe, +ft2_so_version = run_command(python_exe, files('builds/meson/extract_libtool_version.py'), '--soversion', files('builds/unix/configure.raw')).stdout().strip() +ft2_pkgconfig_version = run_command(python_exe, + files('builds/meson/extract_libtool_version.py'), + files('builds/unix/configure.raw')).stdout().strip() + ft2_includes = include_directories('include') +freetype_includedir = join_paths(get_option('includedir'), 'freetype2') # Generate a custom `ftmodule.h` version based on the content of # `modules.cfg`. @@ -49,7 +60,7 @@ ftmodule_h = custom_target('ftmodule.h', command: [python_exe, files('builds/meson/parse_modules_cfg.py'), '--format=ftmodule.h', '@INPUT@', '--output', '@OUTPUT@'], install: true, - install_dir: 'include/freetype2/freetype/config', + install_dir: join_paths(freetype_includedir, 'freetype/config'), ) ft2_sources = [ftmodule_h] @@ -76,7 +87,7 @@ foreach mod: ft_main_modules ft2_sources += 'src/@0@/@1@.c'.format(mod, source) endforeach -# NOTE: The `gzip` and `bzip2` aux modules are handled through options. +# NOTE: The `bzip2` aux module is handled through options. ft_aux_modules = run_command(python_exe, files('builds/meson/parse_modules_cfg.py'), '--format=aux-modules', @@ -90,7 +101,9 @@ foreach auxmod: ft_aux_modules source = 'ftcache' elif auxmod == 'lzw' source = 'ftlzw' - elif auxmod == 'gzip' or auxmod == 'bzip2' + elif auxmod == 'gzip' + source = 'ftgzip' + elif auxmod == 'bzip2' # Handled through options instead, see below. continue endif @@ -99,7 +112,7 @@ endforeach # FreeType 2 base extensions. -# Normally configured through `modules.cfg`. +# To be configured in `modules.cfg`. base_extensions = run_command(python_exe, files('builds/meson/parse_modules_cfg.py'), @@ -122,6 +135,7 @@ ft2_public_headers = files([ 'include/freetype/ftbzip2.h', 'include/freetype/ftcache.h', 'include/freetype/ftchapters.h', + 'include/freetype/ftcid.h', 'include/freetype/ftcolor.h', 'include/freetype/ftdriver.h', 'include/freetype/fterrdef.h', @@ -168,7 +182,7 @@ ft2_config_headers = files([ 'include/freetype/config/public-macros.h', ]) -ft2_defines = [] +ft2_defines = ['-DFT2_BUILD_LIBRARY=1'] # System support file. @@ -180,24 +194,24 @@ has_unistd_h = cc.has_header('unistd.h') has_fcntl_h = cc.has_header('fcntl.h') has_sys_mman_h = cc.has_header('sys/mman.h') -if has_unistd_h - ft2_defines += ['-DHAVE_UNISTD_H=1'] -endif -if has_fcntl_h - ft2_defines += ['-DHAVE_FCNTL_H'] -endif - mmap_option = get_option('mmap') -if mmap_option.auto() - use_mmap = has_unistd_h and has_fcntl_h and has_sys_mman_h -else - use_mmap = mmap_option.enabled() -endif -if use_mmap - # This version of ftsystem.c uses mmap() to read input font files. - ft2_sources += files(['builds/unix/ftsystem.c',]) -else + +use_unix_ftsystem_c = false +if mmap_option.disabled() ft2_sources += files(['src/base/ftsystem.c',]) +elif host_machine.system() == 'windows' + ft2_sources += files(['builds/windows/ftsystem.c',]) +else + if has_unistd_h and has_fcntl_h and has_sys_mman_h + # This version of `ftsystem.c` uses `mmap` to read input font files. + ft2_sources += files(['builds/unix/ftsystem.c',]) + use_unix_ftsystem_c = true + elif mmap_option.enabled() + error('mmap was enabled via options but is not available,' + + ' required headers were not found!') + else + ft2_sources += files(['src/base/ftsystem.c',]) + endif endif @@ -205,53 +219,64 @@ endif # # NOTE: Some specialized versions exist for other platforms not supported by # Meson. Most implementation differences are extremely minor, i.e., in the -# implementation of FT_Message() and FT_Panic(), and getting the `FT2_DEBUG` +# implementation of `FT_Message` and `FT_Panic`, and getting the `FT2_DEBUG` # value from the environment, when this is supported. A smaller refactor # might make these platform-specific files much smaller, and could be moved # into `ftsystem.c` as well. # if host_machine.system() == 'windows' - ft2_debug_src = 'builds/windows/ftdebug.c' + winmod = import('windows') + ft2_sources += [ + 'builds/windows/ftdebug.c', + winmod.compile_resources('src/base/ftver.rc'), + ] else - ft2_debug_src = 'src/base/ftdebug.c' + ft2_sources += 'src/base/ftdebug.c' endif -ft2_sources += files([ft2_debug_src]) + ft2_deps = [] +common_ldflags = [] + + +# Correct compatibility version for OS x. +# +# OSX sets the compatibility_version (aka libtools version) differently from +# the library name. +# +if host_machine.system() == 'darwin' + # maintain compatibility with autotools on macOS + common_ldflags = [ + '-compatibility_version', ft2_pkgconfig_version.split('.')[0], + '-current_version', ft2_pkgconfig_version + ] +endif # Generate `ftoption.h` based on available dependencies. -ftoption_command = [python_exe, +process_header_command = [python_exe, files('builds/meson/process_ftoption_h.py'), '@INPUT@', '--output=@OUTPUT@'] +ftoption_command = process_header_command -# GZip support -zlib_option = get_option('zlib') -if zlib_option == 'disabled' - ftoption_command += ['--disable=FT_CONFIG_OPTION_USE_ZLIB'] + +# external GZip support +zlib_dep = dependency('zlib', + required: get_option('zlib'), + fallback: 'zlib') + +if zlib_dep.found() + ftoption_command += ['--enable=FT_CONFIG_OPTION_SYSTEM_ZLIB'] + ft2_deps += [zlib_dep] else - ftoption_command += ['--enable=FT_CONFIG_OPTION_USE_ZLIB'] - if zlib_option == 'builtin' - ftoption_command += ['--disable=FT_CONFIG_OPTION_SYSTEM_ZLIB'] - else - # Probe for the system version. - zlib_system = dependency('zlib', required: zlib_option == 'system') - ft2_deps += [zlib_system] - ftoption_command += ['--enable=FT_CONFIG_OPTION_SYSTEM_ZLIB'] - endif - ft2_sources += files(['src/gzip/ftgzip.c',]) + ftoption_command += ['--disable=FT_CONFIG_OPTION_SYSTEM_ZLIB'] endif # BZip2 support -# -# IMPORTANT NOTE: Without `static: false` here, Meson will find both the -# static library version and the shared library version when they are -# installed on the system, and will try to link them *both* to the final -# library! -bzip2_dep = meson.get_compiler('c').find_library('bz2', - static: false, - required: get_option('bzip2')) +bzip2_dep = cc.find_library('bz2', + required: get_option('bzip2')) + if bzip2_dep.found() ftoption_command += ['--enable=FT_CONFIG_OPTION_USE_BZIP2'] ft2_sources += files(['src/bzip2/ftbzip2.c',]) @@ -259,21 +284,33 @@ if bzip2_dep.found() endif # PNG support -libpng_dep = dependency('libpng', required: get_option('png')) -ftoption_command += ['--enable=FT_CONFIG_OPTION_USE_PNG'] -ft2_deps += [libpng_dep] +libpng_dep = dependency('libpng', + required: get_option('png'), + fallback: 'libpng') + +if libpng_dep.found() + ftoption_command += ['--enable=FT_CONFIG_OPTION_USE_PNG'] + ft2_deps += [libpng_dep] +endif # Harfbuzz support harfbuzz_dep = dependency('harfbuzz', - version: '>= 1.8.0', - required: get_option('harfbuzz')) -ftoption_command += ['--enable=FT_CONFIG_OPTION_USE_HARFBUZZ'] -ft2_deps += [harfbuzz_dep] + version: '>= 2.0.0', + required: get_option('harfbuzz')) + +if harfbuzz_dep.found() + ftoption_command += ['--enable=FT_CONFIG_OPTION_USE_HARFBUZZ'] + ft2_deps += [harfbuzz_dep] +endif # Brotli decompression support -brotli_dep = dependency('libbrotlidec', required: get_option('brotli')) -ftoption_command += ['--enable=FT_CONFIG_OPTION_USE_BROTLI'] -ft2_deps += [brotli_dep] +brotli_dep = dependency('libbrotlidec', + required: get_option('brotli')) + +if brotli_dep.found() + ftoption_command += ['--enable=FT_CONFIG_OPTION_USE_BROTLI'] + ft2_deps += [brotli_dep] +endif # We can now generate `ftoption.h`. ftoption_h = custom_target('ftoption.h', @@ -281,75 +318,86 @@ ftoption_h = custom_target('ftoption.h', output: 'ftoption.h', command: ftoption_command, install: true, - install_dir: 'include/freetype2/freetype/config', + install_dir: join_paths(freetype_includedir, 'freetype/config'), ) ft2_sources += ftoption_h +ft2_defines += ['-DFT_CONFIG_OPTIONS_H=<ftoption.h>'] +if host_machine.system() == 'windows' + ft2_defines += ['-DDLL_EXPORT=1'] +endif -# QUESTION: What if the compiler doesn't support `-D` but uses `/D` instead -# as on Windows? -# -# Other build systems have something like c_defines to list defines in a -# more portable way. For now assume the compiler supports `-D` (hint: Visual -# Studio does). -ft2_defines += ['-DFT2_BUILD_LIBRARY=1'] +# Generate `ftconfig.h`. -# Ensure that the `ftoption.h` file generated above will be used to build -# FreeType. Unfortunately, and very surprisingly, configure_file() does not -# support putting the output file in a sub-directory, so we have to override -# the default which is `<freetype/config/ftoption.h>`. -# -# It would be cleaner to generate the file directly into -# `${MESON_BUILD_DIR}/freetype/config/ftoption.h`. See -# 'https://github.com/mesonbuild/meson/issues/2320' for details. -ft2_defines += ['-DFT_CONFIG_OPTIONS_H=<ftoption.h>'] +ftconfig_command = process_header_command +if has_unistd_h + ftconfig_command += '--enable=HAVE_UNISTD_H' +endif +if has_fcntl_h + ftconfig_command += '--enable=HAVE_FCNTL_H' +endif -ft2_c_args = ft2_defines -if cc.has_function_attribute('visibility:hidden') - ft2_c_args += ['-fvisibility=hidden'] +if use_unix_ftsystem_c + ftconfig_h_in = files('builds/unix/ftconfig.h.in') + ftconfig_h = custom_target('ftconfig.h', + input: ftconfig_h_in, + output: 'ftconfig.h', + command: ftconfig_command, + install: true, + install_dir: join_paths(freetype_includedir, 'freetype/config'), + ) + ft2_sources += ftconfig_h + ft2_defines += ['-DFT_CONFIG_CONFIG_H=<ftconfig.h>'] endif + ft2_lib = library('freetype', sources: ft2_sources + [ftmodule_h], - c_args: ft2_c_args, + c_args: ft2_defines, + gnu_symbol_visibility: 'hidden', include_directories: ft2_includes, dependencies: ft2_deps, install: true, - version: ft2_libtool_version, + version: ft2_so_version, + link_args: common_ldflags, ) -# To be used by other projects including this one through subproject(). -freetype2_dep = declare_dependency( +# To be used by other projects including this one through `subproject`. +freetype_dep = declare_dependency( include_directories: ft2_includes, link_with: ft2_lib, - version: ft2_libtool_version) + version: ft2_pkgconfig_version) + +meson.override_dependency('freetype2', freetype_dep) # NOTE: Using both `install_dir` and `subdir` doesn't seem to work below, # i.e., the subdir value seems to be ignored, contrary to examples in the # Meson documentation. install_headers('include/ft2build.h', - install_dir: 'include/freetype2') + install_dir: freetype_includedir) install_headers(ft2_public_headers, - install_dir: 'include/freetype2/freetype') + install_dir: join_paths(freetype_includedir, 'freetype')) install_headers(ft2_config_headers, - install_dir: 'include/freetype2/freetype/config') + install_dir: join_paths(freetype_includedir, 'freetype/config')) -# TODO(david): Declare_dependency() for using this in a Meson subproject -# pkgconfig = import('pkgconfig') + pkgconfig.generate(ft2_lib, filebase: 'freetype2', name: 'FreeType 2', description: 'A free, high-quality, and portable font engine.', url: 'https://freetype.org', subdirs: 'freetype2', - version: ft2_libtool_version, + version: ft2_pkgconfig_version, ) +if get_option('tests').enabled() + subdir('tests') +endif # NOTE: Unlike the old `make refdoc` command, this generates the # documentation under `$BUILD/docs/` since Meson doesn't support modifying @@ -359,10 +407,21 @@ gen_docs = custom_target('freetype2 reference documentation', input: ft2_public_headers + ft2_config_headers, command: [python_exe, files('builds/meson/generate_reference_docs.py'), - '--version=' + ft2_version, - '--input-dir=' + meson.source_root(), + '--version=' + meson.project_version(), + '--input-dir=' + meson.current_source_dir(), '--output-dir=@OUTPUT@' ], ) + +summary({'OS': host_machine.system(), + }, section: 'Operating System') + +summary({'Zlib': zlib_dep.found() ? 'external' : 'internal', + 'Bzip2': bzip2_dep.found() ? 'yes' : 'no', + 'Png': libpng_dep.found() ? 'yes' : 'no', + 'Harfbuzz': harfbuzz_dep.found() ? 'yes' : 'no', + 'Brotli': brotli_dep.found() ? 'yes' : 'no', + }, section: 'Used Libraries') + # EOF diff --git a/meson_options.txt b/meson_options.txt index 74ed16baa..375eb714e 100644 --- a/meson_options.txt +++ b/meson_options.txt @@ -2,7 +2,7 @@ # meson_options.txt # -# Copyright (C) 2020 by +# Copyright (C) 2020-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -12,36 +12,42 @@ # fully. -option('zlib', - type: 'combo', - choices: ['disabled', 'auto', 'builtin', 'system'], +option('brotli', + type: 'feature', value: 'auto', - description: 'Support reading gzip-compressed font files.') + description: 'Use Brotli library to support decompressing WOFF2 fonts') option('bzip2', type: 'feature', value: 'auto', - description: 'Support reading bzip2-compressed font files.') + description: 'Support reading bzip2-compressed font files') -option('png', +option('harfbuzz', type: 'feature', value: 'auto', - description: 'Support color bitmap glyph formats in the PNG format.' - + 'Requires libpng.') + description: 'Use Harfbuzz library to improve auto-hinting;' + + ' if available, many glyphs not directly addressable' + + ' by a font\'s character map will be hinted also') -option('harfbuzz', +option('mmap', type: 'feature', value: 'auto', - description: 'Use Harfbuzz library to improve auto-hinting.' - + ' If available, many glyphs not directly addressable' - + ' by a font\'s character map will be hinted also.') + description: 'Use mmap() to open font files for faster parsing') -option('brotli', +option('png', type: 'feature', value: 'auto', - description: 'Use Brotli library to support decompressing WOFF2 fonts.') + description: 'Support color bitmap glyph formats in the PNG format;' + + ' requires libpng') -option('mmap', +option('tests', + type: 'feature', + value: 'disabled', + description: 'Enable FreeType unit and regression tests') + +option('zlib', type: 'feature', value: 'auto', - description: 'Use mmap() to open font files for faster parsing.') + description: 'Support reading gzip-compressed font files') + +# EOF diff --git a/modules.cfg b/modules.cfg index d6cdbe523..30f7fac45 100644 --- a/modules.cfg +++ b/modules.cfg @@ -1,6 +1,6 @@ # modules.cfg # -# Copyright (C) 2005-2020 by +# Copyright (C) 2005-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -93,11 +93,14 @@ HINTING_MODULES += pshinter #### raster modules -- at least one is required for vector font formats #### +# Anti-aliasing rasterizer. +RASTER_MODULES += smooth + # Monochrome rasterizer. RASTER_MODULES += raster -# Anti-aliasing rasterizer. -RASTER_MODULES += smooth +# Signed distance field rasterizer. +RASTER_MODULES += sdf #### diff --git a/src/autofit/afangles.c b/src/autofit/afangles.c deleted file mode 100644 index a2d45eb72..000000000 --- a/src/autofit/afangles.c +++ /dev/null @@ -1,285 +0,0 @@ -/**************************************************************************** - * - * afangles.c - * - * Routines used to compute vector angles with limited accuracy - * and very high speed. It also contains sorting routines (body). - * - * Copyright (C) 2003-2020 by - * David Turner, Robert Wilhelm, and Werner Lemberg. - * - * This file is part of the FreeType project, and may only be used, - * modified, and distributed under the terms of the FreeType project - * license, LICENSE.TXT. By continuing to use, modify, or distribute - * this file you indicate that you have read the license and - * understand and accept it fully. - * - */ - - -#include "aftypes.h" - - - /* - * We are not using `af_angle_atan' anymore, but we keep the source - * code below just in case... - */ - - -#if 0 - - - /* - * The trick here is to realize that we don't need a very accurate angle - * approximation. We are going to use the result of `af_angle_atan' to - * only compare the sign of angle differences, or check whether its - * magnitude is very small. - * - * The approximation - * - * dy * PI / (|dx|+|dy|) - * - * should be enough, and much faster to compute. - */ - FT_LOCAL_DEF( AF_Angle ) - af_angle_atan( FT_Fixed dx, - FT_Fixed dy ) - { - AF_Angle angle; - FT_Fixed ax = dx; - FT_Fixed ay = dy; - - - if ( ax < 0 ) - ax = -ax; - if ( ay < 0 ) - ay = -ay; - - ax += ay; - - if ( ax == 0 ) - angle = 0; - else - { - angle = ( AF_ANGLE_PI2 * dy ) / ( ax + ay ); - if ( dx < 0 ) - { - if ( angle >= 0 ) - angle = AF_ANGLE_PI - angle; - else - angle = -AF_ANGLE_PI - angle; - } - } - - return angle; - } - - -#elif 0 - - - /* the following table has been automatically generated with */ - /* the `mather.py' Python script */ - -#define AF_ATAN_BITS 8 - - static const FT_Byte af_arctan[1L << AF_ATAN_BITS] = - { - 0, 0, 1, 1, 1, 2, 2, 2, - 3, 3, 3, 3, 4, 4, 4, 5, - 5, 5, 6, 6, 6, 7, 7, 7, - 8, 8, 8, 9, 9, 9, 10, 10, - 10, 10, 11, 11, 11, 12, 12, 12, - 13, 13, 13, 14, 14, 14, 14, 15, - 15, 15, 16, 16, 16, 17, 17, 17, - 18, 18, 18, 18, 19, 19, 19, 20, - 20, 20, 21, 21, 21, 21, 22, 22, - 22, 23, 23, 23, 24, 24, 24, 24, - 25, 25, 25, 26, 26, 26, 26, 27, - 27, 27, 28, 28, 28, 28, 29, 29, - 29, 30, 30, 30, 30, 31, 31, 31, - 31, 32, 32, 32, 33, 33, 33, 33, - 34, 34, 34, 34, 35, 35, 35, 35, - 36, 36, 36, 36, 37, 37, 37, 38, - 38, 38, 38, 39, 39, 39, 39, 40, - 40, 40, 40, 41, 41, 41, 41, 42, - 42, 42, 42, 42, 43, 43, 43, 43, - 44, 44, 44, 44, 45, 45, 45, 45, - 46, 46, 46, 46, 46, 47, 47, 47, - 47, 48, 48, 48, 48, 48, 49, 49, - 49, 49, 50, 50, 50, 50, 50, 51, - 51, 51, 51, 51, 52, 52, 52, 52, - 52, 53, 53, 53, 53, 53, 54, 54, - 54, 54, 54, 55, 55, 55, 55, 55, - 56, 56, 56, 56, 56, 57, 57, 57, - 57, 57, 57, 58, 58, 58, 58, 58, - 59, 59, 59, 59, 59, 59, 60, 60, - 60, 60, 60, 61, 61, 61, 61, 61, - 61, 62, 62, 62, 62, 62, 62, 63, - 63, 63, 63, 63, 63, 64, 64, 64 - }; - - - FT_LOCAL_DEF( AF_Angle ) - af_angle_atan( FT_Fixed dx, - FT_Fixed dy ) - { - AF_Angle angle; - - - /* check trivial cases */ - if ( dy == 0 ) - { - angle = 0; - if ( dx < 0 ) - angle = AF_ANGLE_PI; - return angle; - } - else if ( dx == 0 ) - { - angle = AF_ANGLE_PI2; - if ( dy < 0 ) - angle = -AF_ANGLE_PI2; - return angle; - } - - angle = 0; - if ( dx < 0 ) - { - dx = -dx; - dy = -dy; - angle = AF_ANGLE_PI; - } - - if ( dy < 0 ) - { - FT_Pos tmp; - - - tmp = dx; - dx = -dy; - dy = tmp; - angle -= AF_ANGLE_PI2; - } - - if ( dx == 0 && dy == 0 ) - return 0; - - if ( dx == dy ) - angle += AF_ANGLE_PI4; - else if ( dx > dy ) - angle += af_arctan[FT_DivFix( dy, dx ) >> ( 16 - AF_ATAN_BITS )]; - else - angle += AF_ANGLE_PI2 - - af_arctan[FT_DivFix( dx, dy ) >> ( 16 - AF_ATAN_BITS )]; - - if ( angle > AF_ANGLE_PI ) - angle -= AF_ANGLE_2PI; - - return angle; - } - - -#endif /* 0 */ - - - FT_LOCAL_DEF( void ) - af_sort_pos( FT_UInt count, - FT_Pos* table ) - { - FT_UInt i, j; - FT_Pos swap; - - - for ( i = 1; i < count; i++ ) - { - for ( j = i; j > 0; j-- ) - { - if ( table[j] >= table[j - 1] ) - break; - - swap = table[j]; - table[j] = table[j - 1]; - table[j - 1] = swap; - } - } - } - - - FT_LOCAL_DEF( void ) - af_sort_and_quantize_widths( FT_UInt* count, - AF_Width table, - FT_Pos threshold ) - { - FT_UInt i, j; - FT_UInt cur_idx; - FT_Pos cur_val; - FT_Pos sum; - AF_WidthRec swap; - - - if ( *count == 1 ) - return; - - /* sort */ - for ( i = 1; i < *count; i++ ) - { - for ( j = i; j > 0; j-- ) - { - if ( table[j].org >= table[j - 1].org ) - break; - - swap = table[j]; - table[j] = table[j - 1]; - table[j - 1] = swap; - } - } - - cur_idx = 0; - cur_val = table[cur_idx].org; - - /* compute and use mean values for clusters not larger than */ - /* `threshold'; this is very primitive and might not yield */ - /* the best result, but normally, using reference character */ - /* `o', `*count' is 2, so the code below is fully sufficient */ - for ( i = 1; i < *count; i++ ) - { - if ( table[i].org - cur_val > threshold || - i == *count - 1 ) - { - sum = 0; - - /* fix loop for end of array */ - if ( table[i].org - cur_val <= threshold && - i == *count - 1 ) - i++; - - for ( j = cur_idx; j < i; j++ ) - { - sum += table[j].org; - table[j].org = 0; - } - table[cur_idx].org = sum / (FT_Pos)j; - - if ( i < *count - 1 ) - { - cur_idx = i + 1; - cur_val = table[cur_idx].org; - } - } - } - - cur_idx = 1; - - /* compress array to remove zero values */ - for ( i = 1; i < *count; i++ ) - { - if ( table[i].org ) - table[cur_idx++] = table[i]; - } - - *count = cur_idx; - } - - -/* END */ diff --git a/src/autofit/afangles.h b/src/autofit/afangles.h deleted file mode 100644 index 18d7dae3a..000000000 --- a/src/autofit/afangles.h +++ /dev/null @@ -1,7 +0,0 @@ -/* - * afangles.h - * - * This is a dummy file, used to please the build system. It is never - * included by the auto-fitter sources. - * - */ diff --git a/src/autofit/afblue.c b/src/autofit/afblue.c index 9ebffdd09..c9e8045c1 100644 --- a/src/autofit/afblue.c +++ b/src/autofit/afblue.c @@ -7,7 +7,7 @@ * * Auto-fitter data for blue strings (body). * - * Copyright (C) 2013-2020 by + * Copyright (C) 2013-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/autofit/afblue.cin b/src/autofit/afblue.cin index c6a697fee..071e80b03 100644 --- a/src/autofit/afblue.cin +++ b/src/autofit/afblue.cin @@ -4,7 +4,7 @@ * * Auto-fitter data for blue strings (body). * - * Copyright (C) 2013-2020 by + * Copyright (C) 2013-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/autofit/afblue.dat b/src/autofit/afblue.dat index b19b8df0f..1aa9b26de 100644 --- a/src/autofit/afblue.dat +++ b/src/autofit/afblue.dat @@ -2,7 +2,7 @@ // // Auto-fitter data for blue strings. // -// Copyright (C) 2013-2020 by +// Copyright (C) 2013-2021 by // David Turner, Robert Wilhelm, and Werner Lemberg. // // This file is part of the FreeType project, and may only be used, diff --git a/src/autofit/afblue.h b/src/autofit/afblue.h index 486d663b6..311c9e3af 100644 --- a/src/autofit/afblue.h +++ b/src/autofit/afblue.h @@ -7,7 +7,7 @@ * * Auto-fitter data for blue strings (specification). * - * Copyright (C) 2013-2020 by + * Copyright (C) 2013-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/autofit/afblue.hin b/src/autofit/afblue.hin index 395702709..518691493 100644 --- a/src/autofit/afblue.hin +++ b/src/autofit/afblue.hin @@ -4,7 +4,7 @@ * * Auto-fitter data for blue strings (specification). * - * Copyright (C) 2013-2020 by + * Copyright (C) 2013-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/autofit/afcjk.c b/src/autofit/afcjk.c index 3b340cd5e..7e46b6b1e 100644 --- a/src/autofit/afcjk.c +++ b/src/autofit/afcjk.c @@ -4,7 +4,7 @@ * * Auto-fitter hinting routines for CJK writing system (body). * - * Copyright (C) 2006-2020 by + * Copyright (C) 2006-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -37,11 +37,6 @@ #include "aferrors.h" -#ifdef AF_CONFIG_OPTION_USE_WARPER -#include "afwarp.h" -#endif - - /************************************************************************** * * The macro FT_COMPONENT is used in trace mode. It is an implicit @@ -72,11 +67,11 @@ AF_GlyphHintsRec hints[1]; - FT_TRACE5(( "\n" - "cjk standard widths computation (style `%s')\n" - "===================================================\n" - "\n", + FT_TRACE5(( "\n" )); + FT_TRACE5(( "cjk standard widths computation (style `%s')\n", af_style_names[metrics->root.style_class->style] )); + FT_TRACE5(( "===================================================\n" )); + FT_TRACE5(( "\n" )); af_glyph_hints_init( hints, face->memory ); @@ -314,9 +309,9 @@ /* style's entry in the `af_blue_stringset' array, computing its */ /* extremum points (depending on the string properties) */ - FT_TRACE5(( "cjk blue zones computation\n" - "==========================\n" - "\n" )); + FT_TRACE5(( "cjk blue zones computation\n" )); + FT_TRACE5(( "==========================\n" )); + FT_TRACE5(( "\n" )); #ifdef FT_CONFIG_OPTION_USE_HARFBUZZ shaper_buf = af_shaper_buf_create( face ); @@ -555,9 +550,8 @@ if ( AF_CJK_IS_TOP_BLUE( bs ) ) blue->flags |= AF_CJK_BLUE_TOP; - FT_TRACE5(( " -> reference = %ld\n" - " overshoot = %ld\n", - *blue_ref, *blue_shoot )); + FT_TRACE5(( " -> reference = %ld\n", *blue_ref )); + FT_TRACE5(( " overshoot = %ld\n", *blue_shoot )); } /* end for loop */ @@ -743,12 +737,12 @@ blue->shoot.fit = blue->ref.fit - delta2; - FT_TRACE5(( ">> active cjk blue zone %c%d[%ld/%ld]:\n" - " ref: cur=%.2f fit=%.2f\n" - " shoot: cur=%.2f fit=%.2f\n", + FT_TRACE5(( ">> active cjk blue zone %c%d[%ld/%ld]:\n", ( dim == AF_DIMENSION_HORZ ) ? 'H' : 'V', - nn, blue->ref.org, blue->shoot.org, - blue->ref.cur / 64.0, blue->ref.fit / 64.0, + nn, blue->ref.org, blue->shoot.org )); + FT_TRACE5(( " ref: cur=%.2f fit=%.2f\n", + blue->ref.cur / 64.0, blue->ref.fit / 64.0 )); + FT_TRACE5(( " shoot: cur=%.2f fit=%.2f\n", blue->shoot.cur / 64.0, blue->shoot.fit / 64.0 )); blue->flags |= AF_CJK_BLUE_ACTIVE; @@ -1401,11 +1395,6 @@ /* compute flags depending on render mode, etc. */ mode = metrics->root.scaler.render_mode; -#if 0 /* AF_CONFIG_OPTION_USE_WARPER */ - if ( mode == FT_RENDER_MODE_LCD || mode == FT_RENDER_MODE_LCD_V ) - metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL; -#endif - scaler_flags = hints->scaler_flags; other_flags = 0; @@ -1434,12 +1423,6 @@ scaler_flags |= AF_SCALER_FLAG_NO_ADVANCE; -#ifdef AF_CONFIG_OPTION_USE_WARPER - /* get (global) warper flag */ - if ( !metrics->root.globals->module->warping ) - scaler_flags |= AF_SCALER_FLAG_NO_WARPER; -#endif - hints->scaler_flags = scaler_flags; hints->other_flags = other_flags; @@ -2322,25 +2305,6 @@ if ( ( dim == AF_DIMENSION_HORZ && AF_HINTS_DO_HORIZONTAL( hints ) ) || ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) ) ) { - -#ifdef AF_CONFIG_OPTION_USE_WARPER - if ( dim == AF_DIMENSION_HORZ && - metrics->root.scaler.render_mode == FT_RENDER_MODE_NORMAL && - AF_HINTS_DO_WARP( hints ) ) - { - AF_WarperRec warper; - FT_Fixed scale; - FT_Pos delta; - - - af_warper_compute( &warper, hints, (AF_Dimension)dim, - &scale, &delta ); - af_glyph_hints_scale_dim( hints, (AF_Dimension)dim, - scale, delta ); - continue; - } -#endif /* AF_CONFIG_OPTION_USE_WARPER */ - af_cjk_hint_edges( hints, (AF_Dimension)dim ); af_cjk_align_edge_points( hints, (AF_Dimension)dim ); af_glyph_hints_align_strong_points( hints, (AF_Dimension)dim ); diff --git a/src/autofit/afcjk.h b/src/autofit/afcjk.h index fd0f451aa..58aa298da 100644 --- a/src/autofit/afcjk.h +++ b/src/autofit/afcjk.h @@ -4,7 +4,7 @@ * * Auto-fitter hinting routines for CJK writing system (specification). * - * Copyright (C) 2006-2020 by + * Copyright (C) 2006-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/autofit/afcover.h b/src/autofit/afcover.h index 03085ad07..c7ae1e9a8 100644 --- a/src/autofit/afcover.h +++ b/src/autofit/afcover.h @@ -4,7 +4,7 @@ * * Auto-fitter coverages (specification only). * - * Copyright (C) 2013-2020 by + * Copyright (C) 2013-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/autofit/afdummy.c b/src/autofit/afdummy.c index 77d31df97..a36b56f78 100644 --- a/src/autofit/afdummy.c +++ b/src/autofit/afdummy.c @@ -5,7 +5,7 @@ * Auto-fitter dummy routines to be used if no hinting should be * performed (body). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/autofit/afdummy.h b/src/autofit/afdummy.h index efd799e84..b58849fe5 100644 --- a/src/autofit/afdummy.h +++ b/src/autofit/afdummy.h @@ -5,7 +5,7 @@ * Auto-fitter dummy routines to be used if no hinting should be * performed (specification). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/autofit/aferrors.h b/src/autofit/aferrors.h index f90899944..09bed6639 100644 --- a/src/autofit/aferrors.h +++ b/src/autofit/aferrors.h @@ -4,7 +4,7 @@ * * Autofitter error codes (specification only). * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/autofit/afglobal.c b/src/autofit/afglobal.c index d5129423d..b805b3b0e 100644 --- a/src/autofit/afglobal.c +++ b/src/autofit/afglobal.c @@ -4,7 +4,7 @@ * * Auto-fitter routines to compute global hinting values (body). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -19,6 +19,7 @@ #include "afglobal.h" #include "afranges.h" #include "afshaper.h" +#include "afws-decl.h" #include <freetype/internal/ftdebug.h> @@ -32,11 +33,6 @@ #define FT_COMPONENT afglobal - /* get writing system specific header files */ -#undef WRITING_SYSTEM -#define WRITING_SYSTEM( ws, WS ) /* empty */ -#include "afwrtsys.h" - #include "aferrors.h" @@ -74,7 +70,7 @@ af_writing_system_classes[] = { -#include "afwrtsys.h" +#include "afws-iter.h" NULL /* do not remove */ }; @@ -285,10 +281,10 @@ #ifdef FT_DEBUG_LEVEL_TRACE - FT_TRACE4(( "\n" - "style coverage\n" - "==============\n" - "\n" )); + FT_TRACE4(( "\n" )); + FT_TRACE4(( "style coverage\n" )); + FT_TRACE4(( "==============\n" )); + FT_TRACE4(( "\n" )); for ( ss = 0; af_style_classes[ss]; ss++ ) { @@ -478,6 +474,10 @@ { style = (AF_Style)( globals->glyph_styles[gindex] & AF_STYLE_UNASSIGNED ); + /* IMPORTANT: Clear the error code, see + * https://gitlab.freedesktop.org/freetype/freetype/-/issues/1063 + */ + error = FT_Err_Ok; goto Again; } diff --git a/src/autofit/afglobal.h b/src/autofit/afglobal.h index fecf7af97..cd97e716c 100644 --- a/src/autofit/afglobal.h +++ b/src/autofit/afglobal.h @@ -5,7 +5,7 @@ * Auto-fitter routines to compute global hinting values * (specification). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/autofit/afhints.c b/src/autofit/afhints.c index a8e00890e..5506afda2 100644 --- a/src/autofit/afhints.c +++ b/src/autofit/afhints.c @@ -4,7 +4,7 @@ * * Auto-fitter hinting routines (body). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -32,6 +32,104 @@ #define FT_COMPONENT afhints + FT_LOCAL_DEF( void ) + af_sort_pos( FT_UInt count, + FT_Pos* table ) + { + FT_UInt i, j; + FT_Pos swap; + + + for ( i = 1; i < count; i++ ) + { + for ( j = i; j > 0; j-- ) + { + if ( table[j] >= table[j - 1] ) + break; + + swap = table[j]; + table[j] = table[j - 1]; + table[j - 1] = swap; + } + } + } + + + FT_LOCAL_DEF( void ) + af_sort_and_quantize_widths( FT_UInt* count, + AF_Width table, + FT_Pos threshold ) + { + FT_UInt i, j; + FT_UInt cur_idx; + FT_Pos cur_val; + FT_Pos sum; + AF_WidthRec swap; + + + if ( *count == 1 ) + return; + + /* sort */ + for ( i = 1; i < *count; i++ ) + { + for ( j = i; j > 0; j-- ) + { + if ( table[j].org >= table[j - 1].org ) + break; + + swap = table[j]; + table[j] = table[j - 1]; + table[j - 1] = swap; + } + } + + cur_idx = 0; + cur_val = table[cur_idx].org; + + /* compute and use mean values for clusters not larger than */ + /* `threshold'; this is very primitive and might not yield */ + /* the best result, but normally, using reference character */ + /* `o', `*count' is 2, so the code below is fully sufficient */ + for ( i = 1; i < *count; i++ ) + { + if ( table[i].org - cur_val > threshold || + i == *count - 1 ) + { + sum = 0; + + /* fix loop for end of array */ + if ( table[i].org - cur_val <= threshold && + i == *count - 1 ) + i++; + + for ( j = cur_idx; j < i; j++ ) + { + sum += table[j].org; + table[j].org = 0; + } + table[cur_idx].org = sum / (FT_Pos)j; + + if ( i < *count - 1 ) + { + cur_idx = i + 1; + cur_val = table[cur_idx].org; + } + } + } + + cur_idx = 1; + + /* compress array to remove zero values */ + for ( i = 1; i < *count; i++ ) + { + if ( table[i].org ) + table[cur_idx++] = table[i]; + } + + *count = cur_idx; + } + /* Get new segment for given axis. */ FT_LOCAL_DEF( FT_Error ) @@ -764,7 +862,7 @@ { FT_Error error = FT_Err_Ok; AF_Point points; - FT_UInt old_max, new_max; + FT_Int old_max, new_max; FT_Fixed x_scale = hints->x_scale; FT_Fixed y_scale = hints->y_scale; FT_Pos x_delta = hints->x_delta; @@ -781,8 +879,8 @@ hints->axis[1].num_edges = 0; /* first of all, reallocate the contours array if necessary */ - new_max = (FT_UInt)outline->n_contours; - old_max = (FT_UInt)hints->max_contours; + new_max = outline->n_contours; + old_max = hints->max_contours; if ( new_max <= AF_CONTOURS_EMBEDDED ) { @@ -797,12 +895,12 @@ if ( hints->contours == hints->embedded.contours ) hints->contours = NULL; - new_max = ( new_max + 3 ) & ~3U; /* round up to a multiple of 4 */ + new_max = ( new_max + 3 ) & ~3; /* round up to a multiple of 4 */ if ( FT_RENEW_ARRAY( hints->contours, old_max, new_max ) ) goto Exit; - hints->max_contours = (FT_Int)new_max; + hints->max_contours = new_max; } /* @@ -810,8 +908,8 @@ * note that we reserve two additional point positions, used to * hint metrics appropriately */ - new_max = (FT_UInt)( outline->n_points + 2 ); - old_max = (FT_UInt)hints->max_points; + new_max = outline->n_points + 2; + old_max = hints->max_points; if ( new_max <= AF_POINTS_EMBEDDED ) { @@ -826,12 +924,12 @@ if ( hints->points == hints->embedded.points ) hints->points = NULL; - new_max = ( new_max + 2 + 7 ) & ~7U; /* round up to a multiple of 8 */ + new_max = ( new_max + 2 + 7 ) & ~7; /* round up to a multiple of 8 */ if ( FT_RENEW_ARRAY( hints->points, old_max, new_max ) ) goto Exit; - hints->max_points = (FT_Int)new_max; + hints->max_points = new_max; } hints->num_points = outline->n_points; @@ -855,9 +953,6 @@ hints->x_delta = x_delta; hints->y_delta = y_delta; - hints->xmin_delta = 0; - hints->xmax_delta = 0; - points = hints->points; if ( hints->num_points == 0 ) goto Exit; @@ -1688,33 +1783,4 @@ } -#ifdef AF_CONFIG_OPTION_USE_WARPER - - /* Apply (small) warp scale and warp delta for given dimension. */ - - FT_LOCAL_DEF( void ) - af_glyph_hints_scale_dim( AF_GlyphHints hints, - AF_Dimension dim, - FT_Fixed scale, - FT_Pos delta ) - { - AF_Point points = hints->points; - AF_Point points_limit = points + hints->num_points; - AF_Point point; - - - if ( dim == AF_DIMENSION_HORZ ) - { - for ( point = points; point < points_limit; point++ ) - point->x = FT_MulFix( point->fx, scale ) + delta; - } - else - { - for ( point = points; point < points_limit; point++ ) - point->y = FT_MulFix( point->fy, scale ) + delta; - } - } - -#endif /* AF_CONFIG_OPTION_USE_WARPER */ - /* END */ diff --git a/src/autofit/afhints.h b/src/autofit/afhints.h index 6397f098f..38d2847d7 100644 --- a/src/autofit/afhints.h +++ b/src/autofit/afhints.h @@ -4,7 +4,7 @@ * * Auto-fitter hinting routines (specification). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -362,9 +362,6 @@ FT_BEGIN_HEADER /* implementations */ AF_StyleMetrics metrics; - FT_Pos xmin_delta; /* used for warping */ - FT_Pos xmax_delta; - /* Two arrays to avoid allocation penalty. */ /* The `embedded' structure must be the last element! */ struct @@ -408,10 +405,6 @@ FT_BEGIN_HEADER #define AF_HINTS_DO_ADVANCE( h ) \ !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_ADVANCE ) -#define AF_HINTS_DO_WARP( h ) \ - !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_WARPER ) - - FT_LOCAL( AF_Direction ) af_direction_compute( FT_Pos dx, @@ -459,14 +452,6 @@ FT_BEGIN_HEADER af_glyph_hints_align_weak_points( AF_GlyphHints hints, AF_Dimension dim ); -#ifdef AF_CONFIG_OPTION_USE_WARPER - FT_LOCAL( void ) - af_glyph_hints_scale_dim( AF_GlyphHints hints, - AF_Dimension dim, - FT_Fixed scale, - FT_Pos delta ); -#endif - FT_LOCAL( void ) af_glyph_hints_done( AF_GlyphHints hints ); diff --git a/src/autofit/afindic.c b/src/autofit/afindic.c index bc2837a26..064c300ed 100644 --- a/src/autofit/afindic.c +++ b/src/autofit/afindic.c @@ -4,7 +4,7 @@ * * Auto-fitter hinting routines for Indic writing system (body). * - * Copyright (C) 2007-2020 by + * Copyright (C) 2007-2021 by * Rahul Bhalerao <rahul.bhalerao@redhat.com>, <b.rahul.pm@gmail.com>. * * This file is part of the FreeType project, and may only be used, @@ -27,11 +27,6 @@ #include "aferrors.h" -#ifdef AF_CONFIG_OPTION_USE_WARPER -#include "afwarp.h" -#endif - - static FT_Error af_indic_metrics_init( AF_CJKMetrics metrics, FT_Face face ) diff --git a/src/autofit/afindic.h b/src/autofit/afindic.h index 088b88b19..3e4672411 100644 --- a/src/autofit/afindic.h +++ b/src/autofit/afindic.h @@ -5,7 +5,7 @@ * Auto-fitter hinting routines for Indic writing system * (specification). * - * Copyright (C) 2007-2020 by + * Copyright (C) 2007-2021 by * Rahul Bhalerao <rahul.bhalerao@redhat.com>, <b.rahul.pm@gmail.com>. * * This file is part of the FreeType project, and may only be used, diff --git a/src/autofit/aflatin.c b/src/autofit/aflatin.c index 21ec02ebd..5e81d771a 100644 --- a/src/autofit/aflatin.c +++ b/src/autofit/aflatin.c @@ -4,7 +4,7 @@ * * Auto-fitter hinting routines for latin writing system (body). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -24,11 +24,6 @@ #include "aferrors.h" -#ifdef AF_CONFIG_OPTION_USE_WARPER -#include "afwarp.h" -#endif - - /************************************************************************** * * The macro FT_COMPONENT is used in trace mode. It is an implicit @@ -63,11 +58,11 @@ AF_GlyphHintsRec hints[1]; - FT_TRACE5(( "\n" - "latin standard widths computation (style `%s')\n" - "=====================================================\n" - "\n", + FT_TRACE5(( "\n" )); + FT_TRACE5(( "latin standard widths computation (style `%s')\n", af_style_names[metrics->root.style_class->style] )); + FT_TRACE5(( "=====================================================\n" )); + FT_TRACE5(( "\n" )); af_glyph_hints_init( hints, face->memory ); @@ -350,9 +345,9 @@ /* we walk over the blue character strings as specified in the */ /* style's entry in the `af_blue_stringset' array */ - FT_TRACE5(( "latin blue zones computation\n" - "============================\n" - "\n" )); + FT_TRACE5(( "latin blue zones computation\n" )); + FT_TRACE5(( "============================\n" )); + FT_TRACE5(( "\n" )); #ifdef FT_CONFIG_OPTION_USE_HARFBUZZ shaper_buf = af_shaper_buf_create( face ); @@ -976,9 +971,8 @@ if ( AF_LATIN_IS_X_HEIGHT_BLUE( bs ) ) blue->flags |= AF_LATIN_BLUE_ADJUSTMENT; - FT_TRACE5(( " -> reference = %ld\n" - " overshoot = %ld\n", - *blue_ref, *blue_shoot )); + FT_TRACE5(( " -> reference = %ld\n", *blue_ref )); + FT_TRACE5(( " overshoot = %ld\n", *blue_shoot )); } /* end for loop */ @@ -1275,29 +1269,28 @@ if ( dist == 0 ) { - FT_TRACE5(( - "af_latin_metrics_scale_dim:" - " x height alignment (style `%s'):\n" - " " - " vertical scaling changed from %.5f to %.5f (by %ld%%)\n" - "\n", - af_style_names[metrics->root.style_class->style], - scale / 65536.0, - new_scale / 65536.0, - ( fitted - scaled ) * 100 / scaled )); + FT_TRACE5(( "af_latin_metrics_scale_dim:" + " x height alignment (style `%s'):\n", + af_style_names[metrics->root.style_class->style] )); + FT_TRACE5(( " " + " vertical scaling changed" + " from %.5f to %.5f (by %ld%%)\n", + scale / 65536.0, + new_scale / 65536.0, + ( fitted - scaled ) * 100 / scaled )); + FT_TRACE5(( "\n" )); scale = new_scale; } #ifdef FT_DEBUG_LEVEL_TRACE else { - FT_TRACE5(( - "af_latin_metrics_scale_dim:" - " x height alignment (style `%s'):\n" - " " - " excessive vertical scaling abandoned\n" - "\n", - af_style_names[metrics->root.style_class->style] )); + FT_TRACE5(( "af_latin_metrics_scale_dim:" + " x height alignment (style `%s'):\n", + af_style_names[metrics->root.style_class->style] )); + FT_TRACE5(( " " + " excessive vertical scaling abandoned\n" )); + FT_TRACE5(( "\n" )); } #endif } @@ -1346,9 +1339,11 @@ #ifdef FT_DEBUG_LEVEL_TRACE if ( axis->extra_light ) - FT_TRACE5(( "`%s' style is extra light (at current resolution)\n" - "\n", + { + FT_TRACE5(( "`%s' style is extra light (at current resolution)\n", af_style_names[metrics->root.style_class->style] )); + FT_TRACE5(( "\n" )); + } #endif if ( dim == AF_DIMENSION_VERT ) @@ -1473,13 +1468,13 @@ AF_LatinBlue blue = &axis->blues[nn]; - FT_TRACE5(( " reference %d: %ld scaled to %.2f%s\n" - " overshoot %d: %ld scaled to %.2f%s\n", + FT_TRACE5(( " reference %d: %ld scaled to %.2f%s\n", nn, blue->ref.org, blue->ref.fit / 64.0, ( blue->flags & AF_LATIN_BLUE_ACTIVE ) ? "" - : " (inactive)", + : " (inactive)" )); + FT_TRACE5(( " overshoot %d: %ld scaled to %.2f%s\n", nn, blue->shoot.org, blue->shoot.fit / 64.0, @@ -1847,6 +1842,31 @@ ( FT_ABS( point->out_dir ) == major_dir || point == point->prev ) ) { + /* + * For efficiency, we restrict the number of segments to 1000, + * which is a heuristic value: it is very unlikely that a glyph + * with so many segments can be hinted in a sensible way. + * Reasons: + * + * - The glyph has really 1000 segments; this implies that it has + * at least 2000 outline points. Assuming 'normal' fonts that + * have superfluous points optimized away, viewing such a glyph + * only makes sense at large magnifications where hinting + * isn't applied anyway. + * + * - We have a broken glyph. Hinting doesn't make sense in this + * case either. + */ + if ( axis->num_segments > 1000 ) + { + FT_TRACE0(( "af_latin_hints_compute_segments:" + " more than 1000 segments in this glyph;\n" )); + FT_TRACE0(( " " + " hinting is suppressed\n" )); + axis->num_segments = 0; + return FT_Err_Ok; + } + /* this is the start of a new segment! */ segment_dir = (AF_Direction)point->out_dir; @@ -2089,7 +2109,7 @@ { if ( seg2->link != seg1 ) { - seg1->link = 0; + seg1->link = NULL; seg1->serif = seg2->link; } } @@ -2611,11 +2631,6 @@ /* compute flags depending on render mode, etc. */ mode = metrics->root.scaler.render_mode; -#if 0 /* #ifdef AF_CONFIG_OPTION_USE_WARPER */ - if ( mode == FT_RENDER_MODE_LCD || mode == FT_RENDER_MODE_LCD_V ) - metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL; -#endif - scaler_flags = hints->scaler_flags; other_flags = 0; @@ -2653,12 +2668,6 @@ ( face->style_flags & FT_STYLE_FLAG_ITALIC ) != 0 ) scaler_flags |= AF_SCALER_FLAG_NO_HORIZONTAL; -#ifdef AF_CONFIG_OPTION_USE_WARPER - /* get (global) warper flag */ - if ( !metrics->root.globals->module->warping ) - scaler_flags |= AF_SCALER_FLAG_NO_WARPER; -#endif - hints->scaler_flags = scaler_flags; hints->other_flags = other_flags; @@ -3575,24 +3584,6 @@ /* grid-fit the outline */ for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) { -#ifdef AF_CONFIG_OPTION_USE_WARPER - if ( dim == AF_DIMENSION_HORZ && - metrics->root.scaler.render_mode == FT_RENDER_MODE_NORMAL && - AF_HINTS_DO_WARP( hints ) ) - { - AF_WarperRec warper; - FT_Fixed scale; - FT_Pos delta; - - - af_warper_compute( &warper, hints, (AF_Dimension)dim, - &scale, &delta ); - af_glyph_hints_scale_dim( hints, (AF_Dimension)dim, - scale, delta ); - continue; - } -#endif /* AF_CONFIG_OPTION_USE_WARPER */ - if ( ( dim == AF_DIMENSION_HORZ && AF_HINTS_DO_HORIZONTAL( hints ) ) || ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) ) ) { diff --git a/src/autofit/aflatin.h b/src/autofit/aflatin.h index 62bc4c8d4..d6b919ef8 100644 --- a/src/autofit/aflatin.h +++ b/src/autofit/aflatin.h @@ -5,7 +5,7 @@ * Auto-fitter hinting routines for latin writing system * (specification). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/autofit/aflatin2.c b/src/autofit/aflatin2.c deleted file mode 100644 index 902f3982e..000000000 --- a/src/autofit/aflatin2.c +++ /dev/null @@ -1,2428 +0,0 @@ -/* ATTENTION: This file doesn't compile. It is only here as a reference */ -/* of an alternative latin hinting algorithm that was always */ -/* marked as experimental. */ - - -/**************************************************************************** - * - * aflatin2.c - * - * Auto-fitter hinting routines for latin writing system (body). - * - * Copyright (C) 2003-2020 by - * David Turner, Robert Wilhelm, and Werner Lemberg. - * - * This file is part of the FreeType project, and may only be used, - * modified, and distributed under the terms of the FreeType project - * license, LICENSE.TXT. By continuing to use, modify, or distribute - * this file you indicate that you have read the license and - * understand and accept it fully. - * - */ - - -#include <freetype/ftadvanc.h> - - -#ifdef FT_OPTION_AUTOFIT2 - -#include "afglobal.h" -#include "aflatin.h" -#include "aflatin2.h" -#include "aferrors.h" - - -#ifdef AF_CONFIG_OPTION_USE_WARPER -#include "afwarp.h" -#endif - - - /************************************************************************** - * - * The macro FT_COMPONENT is used in trace mode. It is an implicit - * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log - * messages during execution. - */ -#undef FT_COMPONENT -#define FT_COMPONENT aflatin2 - - - FT_LOCAL_DEF( FT_Error ) - af_latin2_hints_compute_segments( AF_GlyphHints hints, - AF_Dimension dim ); - - FT_LOCAL_DEF( void ) - af_latin2_hints_link_segments( AF_GlyphHints hints, - AF_Dimension dim ); - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** L A T I N G L O B A L M E T R I C S *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - FT_LOCAL_DEF( void ) - af_latin2_metrics_init_widths( AF_LatinMetrics metrics, - FT_Face face ) - { - /* scan the array of segments in each direction */ - AF_GlyphHintsRec hints[1]; - - - af_glyph_hints_init( hints, face->memory ); - - metrics->axis[AF_DIMENSION_HORZ].width_count = 0; - metrics->axis[AF_DIMENSION_VERT].width_count = 0; - - { - FT_Error error; - FT_UInt glyph_index; - int dim; - AF_LatinMetricsRec dummy[1]; - AF_Scaler scaler = &dummy->root.scaler; - - - glyph_index = FT_Get_Char_Index( - face, - metrics->root.style_class->standard_char ); - if ( glyph_index == 0 ) - goto Exit; - - error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE ); - if ( error || face->glyph->outline.n_points <= 0 ) - goto Exit; - - FT_ZERO( dummy ); - - dummy->units_per_em = metrics->units_per_em; - scaler->x_scale = scaler->y_scale = 0x10000L; - scaler->x_delta = scaler->y_delta = 0; - scaler->face = face; - scaler->render_mode = FT_RENDER_MODE_NORMAL; - scaler->flags = 0; - - af_glyph_hints_rescale( hints, (AF_StyleMetrics)dummy ); - - error = af_glyph_hints_reload( hints, &face->glyph->outline ); - if ( error ) - goto Exit; - - for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) - { - AF_LatinAxis axis = &metrics->axis[dim]; - AF_AxisHints axhints = &hints->axis[dim]; - AF_Segment seg, limit, link; - FT_UInt num_widths = 0; - - - error = af_latin2_hints_compute_segments( hints, - (AF_Dimension)dim ); - if ( error ) - goto Exit; - - af_latin2_hints_link_segments( hints, - (AF_Dimension)dim ); - - seg = axhints->segments; - limit = seg + axhints->num_segments; - - for ( ; seg < limit; seg++ ) - { - link = seg->link; - - /* we only consider stem segments there! */ - if ( link && link->link == seg && link > seg ) - { - FT_Pos dist; - - - dist = seg->pos - link->pos; - if ( dist < 0 ) - dist = -dist; - - if ( num_widths < AF_LATIN_MAX_WIDTHS ) - axis->widths[num_widths++].org = dist; - } - } - - af_sort_widths( num_widths, axis->widths ); - axis->width_count = num_widths; - } - - Exit: - for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) - { - AF_LatinAxis axis = &metrics->axis[dim]; - FT_Pos stdw; - - - stdw = ( axis->width_count > 0 ) - ? axis->widths[0].org - : AF_LATIN_CONSTANT( metrics, 50 ); - - /* let's try 20% of the smallest width */ - axis->edge_distance_threshold = stdw / 5; - axis->standard_width = stdw; - axis->extra_light = 0; - } - } - - af_glyph_hints_done( hints ); - } - - - -#define AF_LATIN_MAX_TEST_CHARACTERS 12 - - - static const char af_latin2_blue_chars[AF_LATIN_MAX_BLUES] - [AF_LATIN_MAX_TEST_CHARACTERS+1] = - { - "THEZOCQS", - "HEZLOCUS", - "fijkdbh", - "xzroesc", - "xzroesc", - "pqgjy" - }; - - - static void - af_latin2_metrics_init_blues( AF_LatinMetrics metrics, - FT_Face face ) - { - FT_Pos flats [AF_LATIN_MAX_TEST_CHARACTERS]; - FT_Pos rounds[AF_LATIN_MAX_TEST_CHARACTERS]; - FT_Int num_flats; - FT_Int num_rounds; - FT_Int bb; - AF_LatinBlue blue; - FT_Error error; - AF_LatinAxis axis = &metrics->axis[AF_DIMENSION_VERT]; - FT_GlyphSlot glyph = face->glyph; - - - /* we compute the blues simply by loading each character from the */ - /* 'af_latin2_blue_chars[blues]' string, then compute its top-most or */ - /* bottom-most points (depending on `AF_IS_TOP_BLUE') */ - - FT_TRACE5(( "blue zones computation\n" - "======================\n\n" )); - - for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ ) - { - const char* p = af_latin2_blue_chars[bb]; - const char* limit = p + AF_LATIN_MAX_TEST_CHARACTERS; - FT_Pos* blue_ref; - FT_Pos* blue_shoot; - - - FT_TRACE5(( "blue zone %d:\n", bb )); - - num_flats = 0; - num_rounds = 0; - - for ( ; p < limit && *p; p++ ) - { - FT_UInt glyph_index; - FT_Int best_point, best_y, best_first, best_last; - FT_Vector* points; - FT_Bool round; - - - /* load the character in the face -- skip unknown or empty ones */ - glyph_index = FT_Get_Char_Index( face, (FT_UInt)*p ); - if ( glyph_index == 0 ) - continue; - - error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE ); - if ( error || glyph->outline.n_points <= 0 ) - continue; - - /* now compute min or max point indices and coordinates */ - points = glyph->outline.points; - best_point = -1; - best_y = 0; /* make compiler happy */ - best_first = 0; /* ditto */ - best_last = 0; /* ditto */ - - { - FT_Int nn; - FT_Int first = 0; - FT_Int last = -1; - - - for ( nn = 0; nn < glyph->outline.n_contours; first = last+1, nn++ ) - { - FT_Int old_best_point = best_point; - FT_Int pp; - - - last = glyph->outline.contours[nn]; - - /* Avoid single-point contours since they are never rasterized. */ - /* In some fonts, they correspond to mark attachment points */ - /* which are way outside of the glyph's real outline. */ - if ( last <= first ) - continue; - - if ( AF_LATIN_IS_TOP_BLUE( bb ) ) - { - for ( pp = first; pp <= last; pp++ ) - if ( best_point < 0 || points[pp].y > best_y ) - { - best_point = pp; - best_y = points[pp].y; - } - } - else - { - for ( pp = first; pp <= last; pp++ ) - if ( best_point < 0 || points[pp].y < best_y ) - { - best_point = pp; - best_y = points[pp].y; - } - } - - if ( best_point != old_best_point ) - { - best_first = first; - best_last = last; - } - } - FT_TRACE5(( " %c %d", *p, best_y )); - } - - /* now check whether the point belongs to a straight or round */ - /* segment; we first need to find in which contour the extremum */ - /* lies, then inspect its previous and next points */ - if ( best_point >= 0 ) - { - FT_Pos best_x = points[best_point].x; - FT_Int start, end, prev, next; - FT_Pos dist; - - - /* now look for the previous and next points that are not on the */ - /* same Y coordinate. Threshold the `closeness'... */ - start = end = best_point; - - do - { - prev = start - 1; - if ( prev < best_first ) - prev = best_last; - - dist = FT_ABS( points[prev].y - best_y ); - /* accept a small distance or a small angle (both values are */ - /* heuristic; value 20 corresponds to approx. 2.9 degrees) */ - if ( dist > 5 ) - if ( FT_ABS( points[prev].x - best_x ) <= 20 * dist ) - break; - - start = prev; - - } while ( start != best_point ); - - do - { - next = end + 1; - if ( next > best_last ) - next = best_first; - - dist = FT_ABS( points[next].y - best_y ); - if ( dist > 5 ) - if ( FT_ABS( points[next].x - best_x ) <= 20 * dist ) - break; - - end = next; - - } while ( end != best_point ); - - /* now, set the `round' flag depending on the segment's kind */ - round = FT_BOOL( - FT_CURVE_TAG( glyph->outline.tags[start] ) != FT_CURVE_TAG_ON || - FT_CURVE_TAG( glyph->outline.tags[ end ] ) != FT_CURVE_TAG_ON ); - - FT_TRACE5(( " (%s)\n", round ? "round" : "flat" )); - } - - if ( round ) - rounds[num_rounds++] = best_y; - else - flats[num_flats++] = best_y; - } - - if ( num_flats == 0 && num_rounds == 0 ) - { - /* - * we couldn't find a single glyph to compute this blue zone, - * we will simply ignore it then - */ - FT_TRACE5(( " empty\n" )); - continue; - } - - /* we have computed the contents of the `rounds' and `flats' tables, */ - /* now determine the reference and overshoot position of the blue -- */ - /* we simply take the median value after a simple sort */ - af_sort_pos( num_rounds, rounds ); - af_sort_pos( num_flats, flats ); - - blue = & axis->blues[axis->blue_count]; - blue_ref = & blue->ref.org; - blue_shoot = & blue->shoot.org; - - axis->blue_count++; - - if ( num_flats == 0 ) - { - *blue_ref = - *blue_shoot = rounds[num_rounds / 2]; - } - else if ( num_rounds == 0 ) - { - *blue_ref = - *blue_shoot = flats[num_flats / 2]; - } - else - { - *blue_ref = flats[num_flats / 2]; - *blue_shoot = rounds[num_rounds / 2]; - } - - /* there are sometimes problems: if the overshoot position of top */ - /* zones is under its reference position, or the opposite for bottom */ - /* zones. We must thus check everything there and correct the errors */ - if ( *blue_shoot != *blue_ref ) - { - FT_Pos ref = *blue_ref; - FT_Pos shoot = *blue_shoot; - FT_Bool over_ref = FT_BOOL( shoot > ref ); - - - if ( AF_LATIN_IS_TOP_BLUE( bb ) ^ over_ref ) - { - *blue_ref = - *blue_shoot = ( shoot + ref ) / 2; - - FT_TRACE5(( " [overshoot smaller than reference," - " taking mean value]\n" )); - } - } - - blue->flags = 0; - if ( AF_LATIN_IS_TOP_BLUE( bb ) ) - blue->flags |= AF_LATIN_BLUE_TOP; - - /* - * The following flag is used later to adjust the y and x scales - * in order to optimize the pixel grid alignment of the top of small - * letters. - */ - if ( AF_LATIN_IS_X_HEIGHT_BLUE( bb ) ) - blue->flags |= AF_LATIN_BLUE_ADJUSTMENT; - - FT_TRACE5(( " -> reference = %ld\n" - " overshoot = %ld\n", - *blue_ref, *blue_shoot )); - } - - return; - } - - - FT_LOCAL_DEF( void ) - af_latin2_metrics_check_digits( AF_LatinMetrics metrics, - FT_Face face ) - { - FT_UInt i; - FT_Bool started = 0, same_width = 1; - FT_Fixed advance, old_advance = 0; - - - /* check whether all ASCII digits have the same advance width; */ - /* digit `0' is 0x30 in all supported charmaps */ - for ( i = 0x30; i <= 0x39; i++ ) - { - FT_UInt glyph_index; - - - glyph_index = FT_Get_Char_Index( face, i ); - if ( glyph_index == 0 ) - continue; - - if ( FT_Get_Advance( face, glyph_index, - FT_LOAD_NO_SCALE | - FT_LOAD_NO_HINTING | - FT_LOAD_IGNORE_TRANSFORM, - &advance ) ) - continue; - - if ( started ) - { - if ( advance != old_advance ) - { - same_width = 0; - break; - } - } - else - { - old_advance = advance; - started = 1; - } - } - - metrics->root.digits_have_same_width = same_width; - } - - - FT_LOCAL_DEF( FT_Error ) - af_latin2_metrics_init( AF_LatinMetrics metrics, - FT_Face face ) - { - FT_Error error = FT_Err_Ok; - FT_CharMap oldmap = face->charmap; - FT_UInt ee; - - static const FT_Encoding latin_encodings[] = - { - FT_ENCODING_UNICODE, - FT_ENCODING_APPLE_ROMAN, - FT_ENCODING_ADOBE_STANDARD, - FT_ENCODING_ADOBE_LATIN_1, - FT_ENCODING_NONE /* end of list */ - }; - - - metrics->units_per_em = face->units_per_EM; - - /* do we have a latin charmap in there? */ - for ( ee = 0; latin_encodings[ee] != FT_ENCODING_NONE; ee++ ) - { - error = FT_Select_Charmap( face, latin_encodings[ee] ); - if ( !error ) - break; - } - - if ( !error ) - { - af_latin2_metrics_init_widths( metrics, face ); - af_latin2_metrics_init_blues( metrics, face ); - af_latin2_metrics_check_digits( metrics, face ); - } - - FT_Set_Charmap( face, oldmap ); - return FT_Err_Ok; - } - - - static void - af_latin2_metrics_scale_dim( AF_LatinMetrics metrics, - AF_Scaler scaler, - AF_Dimension dim ) - { - FT_Fixed scale; - FT_Pos delta; - AF_LatinAxis axis; - FT_UInt nn; - - - if ( dim == AF_DIMENSION_HORZ ) - { - scale = scaler->x_scale; - delta = scaler->x_delta; - } - else - { - scale = scaler->y_scale; - delta = scaler->y_delta; - } - - axis = &metrics->axis[dim]; - - if ( axis->org_scale == scale && axis->org_delta == delta ) - return; - - axis->org_scale = scale; - axis->org_delta = delta; - - /* - * correct Y scale to optimize the alignment of the top of small - * letters to the pixel grid - */ - if ( dim == AF_DIMENSION_VERT ) - { - AF_LatinAxis vaxis = &metrics->axis[AF_DIMENSION_VERT]; - AF_LatinBlue blue = NULL; - - - for ( nn = 0; nn < vaxis->blue_count; nn++ ) - { - if ( vaxis->blues[nn].flags & AF_LATIN_BLUE_ADJUSTMENT ) - { - blue = &vaxis->blues[nn]; - break; - } - } - - if ( blue ) - { - FT_Pos scaled; - FT_Pos threshold; - FT_Pos fitted; - FT_UInt limit; - FT_UInt ppem; - - - scaled = FT_MulFix( blue->shoot.org, scaler->y_scale ); - ppem = metrics->root.scaler.face->size->metrics.x_ppem; - limit = metrics->root.globals->increase_x_height; - threshold = 40; - - /* if the `increase-x-height' property is active, */ - /* we round up much more often */ - if ( limit && - ppem <= limit && - ppem >= AF_PROP_INCREASE_X_HEIGHT_MIN ) - threshold = 52; - - fitted = ( scaled + threshold ) & ~63; - -#if 1 - if ( scaled != fitted ) - { - scale = FT_MulDiv( scale, fitted, scaled ); - FT_TRACE5(( "== scaled x-top = %.2g" - " fitted = %.2g, scaling = %.4g\n", - scaled / 64.0, fitted / 64.0, - ( fitted * 1.0 ) / scaled )); - } -#endif - } - } - - axis->scale = scale; - axis->delta = delta; - - if ( dim == AF_DIMENSION_HORZ ) - { - metrics->root.scaler.x_scale = scale; - metrics->root.scaler.x_delta = delta; - } - else - { - metrics->root.scaler.y_scale = scale; - metrics->root.scaler.y_delta = delta; - } - - /* scale the standard widths */ - for ( nn = 0; nn < axis->width_count; nn++ ) - { - AF_Width width = axis->widths + nn; - - - width->cur = FT_MulFix( width->org, scale ); - width->fit = width->cur; - } - - /* an extra-light axis corresponds to a standard width that is */ - /* smaller than 5/8 pixels */ - axis->extra_light = - FT_BOOL( FT_MulFix( axis->standard_width, scale ) < 32 + 8 ); - - if ( dim == AF_DIMENSION_VERT ) - { - /* scale the blue zones */ - for ( nn = 0; nn < axis->blue_count; nn++ ) - { - AF_LatinBlue blue = &axis->blues[nn]; - FT_Pos dist; - - - blue->ref.cur = FT_MulFix( blue->ref.org, scale ) + delta; - blue->ref.fit = blue->ref.cur; - blue->shoot.cur = FT_MulFix( blue->shoot.org, scale ) + delta; - blue->shoot.fit = blue->shoot.cur; - blue->flags &= ~AF_LATIN_BLUE_ACTIVE; - - /* a blue zone is only active if it is less than 3/4 pixels tall */ - dist = FT_MulFix( blue->ref.org - blue->shoot.org, scale ); - if ( dist <= 48 && dist >= -48 ) - { - FT_Pos delta1, delta2; - - delta1 = blue->shoot.org - blue->ref.org; - delta2 = delta1; - if ( delta1 < 0 ) - delta2 = -delta2; - - delta2 = FT_MulFix( delta2, scale ); - - if ( delta2 < 32 ) - delta2 = 0; - else if ( delta2 < 64 ) - delta2 = 32 + ( ( ( delta2 - 32 ) + 16 ) & ~31 ); - else - delta2 = FT_PIX_ROUND( delta2 ); - - if ( delta1 < 0 ) - delta2 = -delta2; - - blue->ref.fit = FT_PIX_ROUND( blue->ref.cur ); - blue->shoot.fit = blue->ref.fit + delta2; - - FT_TRACE5(( ">> activating blue zone %d:" - " ref.cur=%.2g ref.fit=%.2g" - " shoot.cur=%.2g shoot.fit=%.2g\n", - nn, blue->ref.cur / 64.0, blue->ref.fit / 64.0, - blue->shoot.cur / 64.0, blue->shoot.fit / 64.0 )); - - blue->flags |= AF_LATIN_BLUE_ACTIVE; - } - } - } - } - - - FT_LOCAL_DEF( void ) - af_latin2_metrics_scale( AF_LatinMetrics metrics, - AF_Scaler scaler ) - { - metrics->root.scaler.render_mode = scaler->render_mode; - metrics->root.scaler.face = scaler->face; - metrics->root.scaler.flags = scaler->flags; - - af_latin2_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ ); - af_latin2_metrics_scale_dim( metrics, scaler, AF_DIMENSION_VERT ); - } - - - /* Extract standard_width from writing system/script specific */ - /* metrics class. */ - - FT_LOCAL_DEF( void ) - af_latin2_get_standard_widths( AF_LatinMetrics metrics, - FT_Pos* stdHW, - FT_Pos* stdVW ) - { - if ( stdHW ) - *stdHW = metrics->axis[AF_DIMENSION_VERT].standard_width; - - if ( stdVW ) - *stdVW = metrics->axis[AF_DIMENSION_HORZ].standard_width; - } - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** L A T I N G L Y P H A N A L Y S I S *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - -#define SORT_SEGMENTS - - FT_LOCAL_DEF( FT_Error ) - af_latin2_hints_compute_segments( AF_GlyphHints hints, - AF_Dimension dim ) - { - AF_AxisHints axis = &hints->axis[dim]; - FT_Memory memory = hints->memory; - FT_Error error = FT_Err_Ok; - AF_Segment segment = NULL; - AF_SegmentRec seg0; - AF_Point* contour = hints->contours; - AF_Point* contour_limit = contour + hints->num_contours; - AF_Direction major_dir, segment_dir; - - - FT_ZERO( &seg0 ); - seg0.score = 32000; - seg0.flags = AF_EDGE_NORMAL; - - major_dir = (AF_Direction)FT_ABS( axis->major_dir ); - segment_dir = major_dir; - - axis->num_segments = 0; - - /* set up (u,v) in each point */ - if ( dim == AF_DIMENSION_HORZ ) - { - AF_Point point = hints->points; - AF_Point limit = point + hints->num_points; - - - for ( ; point < limit; point++ ) - { - point->u = point->fx; - point->v = point->fy; - } - } - else - { - AF_Point point = hints->points; - AF_Point limit = point + hints->num_points; - - - for ( ; point < limit; point++ ) - { - point->u = point->fy; - point->v = point->fx; - } - } - - /* do each contour separately */ - for ( ; contour < contour_limit; contour++ ) - { - AF_Point point = contour[0]; - AF_Point start = point; - AF_Point last = point->prev; - - - if ( point == last ) /* skip singletons -- just in case */ - continue; - - /* already on an edge ?, backtrack to find its start */ - if ( FT_ABS( point->in_dir ) == major_dir ) - { - point = point->prev; - - while ( point->in_dir == start->in_dir ) - point = point->prev; - } - else /* otherwise, find first segment start, if any */ - { - while ( FT_ABS( point->out_dir ) != major_dir ) - { - point = point->next; - - if ( point == start ) - goto NextContour; - } - } - - start = point; - - for (;;) - { - AF_Point first; - FT_Pos min_u, min_v, max_u, max_v; - - /* we're at the start of a new segment */ - FT_ASSERT( FT_ABS( point->out_dir ) == major_dir && - point->in_dir != point->out_dir ); - first = point; - - min_u = max_u = point->u; - min_v = max_v = point->v; - - point = point->next; - - while ( point->out_dir == first->out_dir ) - { - point = point->next; - - if ( point->u < min_u ) - min_u = point->u; - - if ( point->u > max_u ) - max_u = point->u; - } - - if ( point->v < min_v ) - min_v = point->v; - - if ( point->v > max_v ) - max_v = point->v; - - /* record new segment */ - error = af_axis_hints_new_segment( axis, memory, &segment ); - if ( error ) - goto Exit; - - segment[0] = seg0; - segment->dir = first->out_dir; - segment->first = first; - segment->last = point; - segment->pos = (FT_Short)( ( min_u + max_u ) >> 1 ); - segment->min_coord = (FT_Short) min_v; - segment->max_coord = (FT_Short) max_v; - segment->height = (FT_Short)( max_v - min_v ); - - /* a segment is round if it doesn't have successive */ - /* on-curve points. */ - { - AF_Point pt = first; - AF_Point last = point; - FT_UInt f0 = pt->flags & AF_FLAG_CONTROL; - FT_UInt f1; - - - segment->flags &= ~AF_EDGE_ROUND; - - for ( ; pt != last; f0 = f1 ) - { - pt = pt->next; - f1 = pt->flags & AF_FLAG_CONTROL; - - if ( !f0 && !f1 ) - break; - - if ( pt == last ) - segment->flags |= AF_EDGE_ROUND; - } - } - - /* this can happen in the case of a degenerate contour - * e.g. a 2-point vertical contour - */ - if ( point == start ) - break; - - /* jump to the start of the next segment, if any */ - while ( FT_ABS( point->out_dir ) != major_dir ) - { - point = point->next; - - if ( point == start ) - goto NextContour; - } - } - - NextContour: - ; - } /* contours */ - - /* now slightly increase the height of segments when this makes */ - /* sense -- this is used to better detect and ignore serifs */ - { - AF_Segment segments = axis->segments; - AF_Segment segments_end = segments + axis->num_segments; - - - for ( segment = segments; segment < segments_end; segment++ ) - { - AF_Point first = segment->first; - AF_Point last = segment->last; - AF_Point p; - FT_Pos first_v = first->v; - FT_Pos last_v = last->v; - - - if ( first_v < last_v ) - { - p = first->prev; - if ( p->v < first_v ) - segment->height = (FT_Short)( segment->height + - ( ( first_v - p->v ) >> 1 ) ); - - p = last->next; - if ( p->v > last_v ) - segment->height = (FT_Short)( segment->height + - ( ( p->v - last_v ) >> 1 ) ); - } - else - { - p = first->prev; - if ( p->v > first_v ) - segment->height = (FT_Short)( segment->height + - ( ( p->v - first_v ) >> 1 ) ); - - p = last->next; - if ( p->v < last_v ) - segment->height = (FT_Short)( segment->height + - ( ( last_v - p->v ) >> 1 ) ); - } - } - } - -#ifdef AF_SORT_SEGMENTS - /* place all segments with a negative direction to the start - * of the array, used to speed up segment linking later... - */ - { - AF_Segment segments = axis->segments; - FT_UInt count = axis->num_segments; - FT_UInt ii, jj; - - for ( ii = 0; ii < count; ii++ ) - { - if ( segments[ii].dir > 0 ) - { - for ( jj = ii + 1; jj < count; jj++ ) - { - if ( segments[jj].dir < 0 ) - { - AF_SegmentRec tmp; - - - tmp = segments[ii]; - segments[ii] = segments[jj]; - segments[jj] = tmp; - - break; - } - } - - if ( jj == count ) - break; - } - } - axis->mid_segments = ii; - } -#endif - - Exit: - return error; - } - - - FT_LOCAL_DEF( void ) - af_latin2_hints_link_segments( AF_GlyphHints hints, - AF_Dimension dim ) - { - AF_AxisHints axis = &hints->axis[dim]; - AF_Segment segments = axis->segments; - AF_Segment segment_limit = segments + axis->num_segments; -#ifdef AF_SORT_SEGMENTS - AF_Segment segment_mid = segments + axis->mid_segments; -#endif - FT_Pos len_threshold, len_score; - AF_Segment seg1, seg2; - - - len_threshold = AF_LATIN_CONSTANT( hints->metrics, 8 ); - if ( len_threshold == 0 ) - len_threshold = 1; - - len_score = AF_LATIN_CONSTANT( hints->metrics, 6000 ); - -#ifdef AF_SORT_SEGMENTS - for ( seg1 = segments; seg1 < segment_mid; seg1++ ) - { - if ( seg1->dir != axis->major_dir ) - continue; - - for ( seg2 = segment_mid; seg2 < segment_limit; seg2++ ) -#else - /* now compare each segment to the others */ - for ( seg1 = segments; seg1 < segment_limit; seg1++ ) - { - if ( seg1->dir != axis->major_dir ) - continue; - - for ( seg2 = segments; seg2 < segment_limit; seg2++ ) - if ( seg1->dir + seg2->dir == 0 && seg2->pos > seg1->pos ) -#endif - { - FT_Pos pos1 = seg1->pos; - FT_Pos pos2 = seg2->pos; - FT_Pos dist = pos2 - pos1; - - - if ( dist < 0 ) - continue; - - { - FT_Pos min = seg1->min_coord; - FT_Pos max = seg1->max_coord; - FT_Pos len, score; - - - if ( min < seg2->min_coord ) - min = seg2->min_coord; - - if ( max > seg2->max_coord ) - max = seg2->max_coord; - - len = max - min; - if ( len >= len_threshold ) - { - score = dist + len_score / len; - if ( score < seg1->score ) - { - seg1->score = score; - seg1->link = seg2; - } - - if ( score < seg2->score ) - { - seg2->score = score; - seg2->link = seg1; - } - } - } - } - } -#if 0 - } -#endif - - /* now, compute the `serif' segments */ - for ( seg1 = segments; seg1 < segment_limit; seg1++ ) - { - seg2 = seg1->link; - - if ( seg2 ) - { - if ( seg2->link != seg1 ) - { - seg1->link = NULL; - seg1->serif = seg2->link; - } - } - } - } - - - FT_LOCAL_DEF( FT_Error ) - af_latin2_hints_compute_edges( AF_GlyphHints hints, - AF_Dimension dim ) - { - AF_AxisHints axis = &hints->axis[dim]; - FT_Error error = FT_Err_Ok; - FT_Memory memory = hints->memory; - AF_LatinAxis laxis = &((AF_LatinMetrics)hints->metrics)->axis[dim]; - - AF_Segment segments = axis->segments; - AF_Segment segment_limit = segments + axis->num_segments; - AF_Segment seg; - - AF_Direction up_dir; - FT_Fixed scale; - FT_Pos edge_distance_threshold; - FT_Pos segment_length_threshold; - - - axis->num_edges = 0; - - scale = ( dim == AF_DIMENSION_HORZ ) ? hints->x_scale - : hints->y_scale; - - up_dir = ( dim == AF_DIMENSION_HORZ ) ? AF_DIR_UP - : AF_DIR_RIGHT; - - /* - * We want to ignore very small (mostly serif) segments, we do that - * by ignoring those that whose length is less than a given fraction - * of the standard width. If there is no standard width, we ignore - * those that are less than a given size in pixels - * - * also, unlink serif segments that are linked to segments farther - * than 50% of the standard width - */ - if ( dim == AF_DIMENSION_HORZ ) - { - if ( laxis->width_count > 0 ) - segment_length_threshold = ( laxis->standard_width * 10 ) >> 4; - else - segment_length_threshold = FT_DivFix( 64, hints->y_scale ); - } - else - segment_length_threshold = 0; - - /********************************************************************** - * - * We will begin by generating a sorted table of edges for the - * current direction. To do so, we simply scan each segment and try - * to find an edge in our table that corresponds to its position. - * - * If no edge is found, we create and insert a new edge in the - * sorted table. Otherwise, we simply add the segment to the edge's - * list which will be processed in the second step to compute the - * edge's properties. - * - * Note that the edges table is sorted along the segment/edge - * position. - * - */ - - edge_distance_threshold = FT_MulFix( laxis->edge_distance_threshold, - scale ); - if ( edge_distance_threshold > 64 / 4 ) - edge_distance_threshold = 64 / 4; - - edge_distance_threshold = FT_DivFix( edge_distance_threshold, - scale ); - - for ( seg = segments; seg < segment_limit; seg++ ) - { - AF_Edge found = NULL; - FT_Int ee; - - - if ( seg->height < segment_length_threshold ) - continue; - - /* A special case for serif edges: If they are smaller than */ - /* 1.5 pixels we ignore them. */ - if ( seg->serif ) - { - FT_Pos dist = seg->serif->pos - seg->pos; - - - if ( dist < 0 ) - dist = -dist; - - if ( dist >= laxis->standard_width >> 1 ) - { - /* unlink this serif, it is too distant from its reference stem */ - seg->serif = NULL; - } - else if ( 2*seg->height < 3 * segment_length_threshold ) - continue; - } - - /* look for an edge corresponding to the segment */ - for ( ee = 0; ee < axis->num_edges; ee++ ) - { - AF_Edge edge = axis->edges + ee; - FT_Pos dist; - - - dist = seg->pos - edge->fpos; - if ( dist < 0 ) - dist = -dist; - - if ( dist < edge_distance_threshold && edge->dir == seg->dir ) - { - found = edge; - break; - } - } - - if ( !found ) - { - AF_Edge edge; - - - /* insert a new edge in the list and */ - /* sort according to the position */ - error = af_axis_hints_new_edge( axis, seg->pos, seg->dir, 0, - memory, &edge ); - if ( error ) - goto Exit; - - /* add the segment to the new edge's list */ - FT_ZERO( edge ); - - edge->first = seg; - edge->last = seg; - edge->dir = seg->dir; - edge->fpos = seg->pos; - edge->opos = FT_MulFix( seg->pos, scale ); - edge->pos = edge->opos; - seg->edge_next = seg; - } - else - { - /* if an edge was found, simply add the segment to the edge's */ - /* list */ - seg->edge_next = found->first; - found->last->edge_next = seg; - found->last = seg; - } - } - - - /********************************************************************** - * - * Good, we will now compute each edge's properties according to - * segments found on its position. Basically, these are: - * - * - edge's main direction - * - stem edge, serif edge or both (which defaults to stem then) - * - rounded edge, straight or both (which defaults to straight) - * - link for edge - * - */ - - /* first of all, set the `edge' field in each segment -- this is */ - /* required in order to compute edge links */ - - /* - * Note that removing this loop and setting the `edge' field of each - * segment directly in the code above slows down execution speed for - * some reasons on platforms like the Sun. - */ - { - AF_Edge edges = axis->edges; - AF_Edge edge_limit = edges + axis->num_edges; - AF_Edge edge; - - - for ( edge = edges; edge < edge_limit; edge++ ) - { - seg = edge->first; - if ( seg ) - do - { - seg->edge = edge; - seg = seg->edge_next; - - } while ( seg != edge->first ); - } - - /* now, compute each edge properties */ - for ( edge = edges; edge < edge_limit; edge++ ) - { - FT_Int is_round = 0; /* does it contain round segments? */ - FT_Int is_straight = 0; /* does it contain straight segments? */ -#if 0 - FT_Pos ups = 0; /* number of upwards segments */ - FT_Pos downs = 0; /* number of downwards segments */ -#endif - - - seg = edge->first; - - do - { - FT_Bool is_serif; - - - /* check for roundness of segment */ - if ( seg->flags & AF_EDGE_ROUND ) - is_round++; - else - is_straight++; - -#if 0 - /* check for segment direction */ - if ( seg->dir == up_dir ) - ups += seg->max_coord-seg->min_coord; - else - downs += seg->max_coord-seg->min_coord; -#endif - - /* check for links -- if seg->serif is set, then seg->link must */ - /* be ignored */ - is_serif = FT_BOOL( seg->serif && - seg->serif->edge && - seg->serif->edge != edge ); - - if ( ( seg->link && seg->link->edge ) || is_serif ) - { - AF_Edge edge2; - AF_Segment seg2; - - - edge2 = edge->link; - seg2 = seg->link; - - if ( is_serif ) - { - seg2 = seg->serif; - edge2 = edge->serif; - } - - if ( edge2 ) - { - FT_Pos edge_delta; - FT_Pos seg_delta; - - - edge_delta = edge->fpos - edge2->fpos; - if ( edge_delta < 0 ) - edge_delta = -edge_delta; - - seg_delta = seg->pos - seg2->pos; - if ( seg_delta < 0 ) - seg_delta = -seg_delta; - - if ( seg_delta < edge_delta ) - edge2 = seg2->edge; - } - else - edge2 = seg2->edge; - - if ( is_serif ) - { - edge->serif = edge2; - edge2->flags |= AF_EDGE_SERIF; - } - else - edge->link = edge2; - } - - seg = seg->edge_next; - - } while ( seg != edge->first ); - - /* set the round/straight flags */ - edge->flags = AF_EDGE_NORMAL; - - if ( is_round > 0 && is_round >= is_straight ) - edge->flags |= AF_EDGE_ROUND; - -#if 0 - /* set the edge's main direction */ - edge->dir = AF_DIR_NONE; - - if ( ups > downs ) - edge->dir = (FT_Char)up_dir; - - else if ( ups < downs ) - edge->dir = (FT_Char)-up_dir; - - else if ( ups == downs ) - edge->dir = 0; /* both up and down! */ -#endif - - /* gets rid of serifs if link is set */ - /* XXX: This gets rid of many unpleasant artefacts! */ - /* Example: the `c' in cour.pfa at size 13 */ - - if ( edge->serif && edge->link ) - edge->serif = NULL; - } - } - - Exit: - return error; - } - - - FT_LOCAL_DEF( FT_Error ) - af_latin2_hints_detect_features( AF_GlyphHints hints, - AF_Dimension dim ) - { - FT_Error error; - - - error = af_latin2_hints_compute_segments( hints, dim ); - if ( !error ) - { - af_latin2_hints_link_segments( hints, dim ); - - error = af_latin2_hints_compute_edges( hints, dim ); - } - return error; - } - - - static void - af_latin2_hints_compute_blue_edges( AF_GlyphHints hints, - AF_LatinMetrics metrics ) - { - AF_AxisHints axis = &hints->axis[AF_DIMENSION_VERT]; - AF_Edge edge = axis->edges; - AF_Edge edge_limit = edge + axis->num_edges; - AF_LatinAxis latin = &metrics->axis[AF_DIMENSION_VERT]; - FT_Fixed scale = latin->scale; - FT_Pos best_dist0; /* initial threshold */ - - - /* compute the initial threshold as a fraction of the EM size */ - best_dist0 = FT_MulFix( metrics->units_per_em / 40, scale ); - - if ( best_dist0 > 64 / 2 ) - best_dist0 = 64 / 2; - - /* compute which blue zones are active, i.e. have their scaled */ - /* size < 3/4 pixels */ - - /* for each horizontal edge search the blue zone which is closest */ - for ( ; edge < edge_limit; edge++ ) - { - FT_Int bb; - AF_Width best_blue = NULL; - FT_Pos best_dist = best_dist0; - - for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ ) - { - AF_LatinBlue blue = latin->blues + bb; - FT_Bool is_top_blue, is_major_dir; - - - /* skip inactive blue zones (i.e., those that are too small) */ - if ( !( blue->flags & AF_LATIN_BLUE_ACTIVE ) ) - continue; - - /* if it is a top zone, check for right edges -- if it is a bottom */ - /* zone, check for left edges */ - /* */ - /* of course, that's for TrueType */ - is_top_blue = (FT_Byte)( ( blue->flags & AF_LATIN_BLUE_TOP ) != 0 ); - is_major_dir = FT_BOOL( edge->dir == axis->major_dir ); - - /* if it is a top zone, the edge must be against the major */ - /* direction; if it is a bottom zone, it must be in the major */ - /* direction */ - if ( is_top_blue ^ is_major_dir ) - { - FT_Pos dist; - AF_Width compare; - - - /* if it's a rounded edge, compare it to the overshoot position */ - /* if it's a flat edge, compare it to the reference position */ - if ( edge->flags & AF_EDGE_ROUND ) - compare = &blue->shoot; - else - compare = &blue->ref; - - dist = edge->fpos - compare->org; - if ( dist < 0 ) - dist = -dist; - - dist = FT_MulFix( dist, scale ); - if ( dist < best_dist ) - { - best_dist = dist; - best_blue = compare; - } - -#if 0 - /* now, compare it to the overshoot position if the edge is */ - /* rounded, and if the edge is over the reference position of a */ - /* top zone, or under the reference position of a bottom zone */ - if ( edge->flags & AF_EDGE_ROUND && dist != 0 ) - { - FT_Bool is_under_ref = FT_BOOL( edge->fpos < blue->ref.org ); - - - if ( is_top_blue ^ is_under_ref ) - { - blue = latin->blues + bb; - dist = edge->fpos - blue->shoot.org; - if ( dist < 0 ) - dist = -dist; - - dist = FT_MulFix( dist, scale ); - if ( dist < best_dist ) - { - best_dist = dist; - best_blue = & blue->shoot; - } - } - } -#endif - } - } - - if ( best_blue ) - edge->blue_edge = best_blue; - } - } - - - static FT_Error - af_latin2_hints_init( AF_GlyphHints hints, - AF_LatinMetrics metrics ) - { - FT_Render_Mode mode; - FT_UInt32 scaler_flags, other_flags; - FT_Face face = metrics->root.scaler.face; - - - af_glyph_hints_rescale( hints, (AF_StyleMetrics)metrics ); - - /* - * correct x_scale and y_scale if needed, since they may have - * been modified `af_latin2_metrics_scale_dim' above - */ - hints->x_scale = metrics->axis[AF_DIMENSION_HORZ].scale; - hints->x_delta = metrics->axis[AF_DIMENSION_HORZ].delta; - hints->y_scale = metrics->axis[AF_DIMENSION_VERT].scale; - hints->y_delta = metrics->axis[AF_DIMENSION_VERT].delta; - - /* compute flags depending on render mode, etc. */ - mode = metrics->root.scaler.render_mode; - -#if 0 /* #ifdef AF_CONFIG_OPTION_USE_WARPER */ - if ( mode == FT_RENDER_MODE_LCD || mode == FT_RENDER_MODE_LCD_V ) - metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL; -#endif - - scaler_flags = hints->scaler_flags; - other_flags = 0; - - /* - * We snap the width of vertical stems for the monochrome and - * horizontal LCD rendering targets only. - */ - if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD ) - other_flags |= AF_LATIN_HINTS_HORZ_SNAP; - - /* - * We snap the width of horizontal stems for the monochrome and - * vertical LCD rendering targets only. - */ - if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD_V ) - other_flags |= AF_LATIN_HINTS_VERT_SNAP; - - /* - * We adjust stems to full pixels unless in `light' or `lcd' mode. - */ - if ( mode != FT_RENDER_MODE_LIGHT && mode != FT_RENDER_MODE_LCD ) - other_flags |= AF_LATIN_HINTS_STEM_ADJUST; - - if ( mode == FT_RENDER_MODE_MONO ) - other_flags |= AF_LATIN_HINTS_MONO; - - /* - * In `light' or `lcd' mode we disable horizontal hinting completely. - * We also do it if the face is italic. - */ - if ( mode == FT_RENDER_MODE_LIGHT || mode == FT_RENDER_MODE_LCD || - ( face->style_flags & FT_STYLE_FLAG_ITALIC ) != 0 ) - scaler_flags |= AF_SCALER_FLAG_NO_HORIZONTAL; - -#ifdef AF_CONFIG_OPTION_USE_WARPER - /* get (global) warper flag */ - if ( !metrics->root.globals->module->warping ) - scaler_flags |= AF_SCALER_FLAG_NO_WARPER; -#endif - - hints->scaler_flags = scaler_flags; - hints->other_flags = other_flags; - - return 0; - } - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** L A T I N G L Y P H G R I D - F I T T I N G *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - /* snap a given width in scaled coordinates to one of the */ - /* current standard widths */ - - static FT_Pos - af_latin2_snap_width( AF_Width widths, - FT_UInt count, - FT_Pos width ) - { - FT_UInt n; - FT_Pos best = 64 + 32 + 2; - FT_Pos reference = width; - FT_Pos scaled; - - - for ( n = 0; n < count; n++ ) - { - FT_Pos w; - FT_Pos dist; - - - w = widths[n].cur; - dist = width - w; - if ( dist < 0 ) - dist = -dist; - if ( dist < best ) - { - best = dist; - reference = w; - } - } - - scaled = FT_PIX_ROUND( reference ); - - if ( width >= reference ) - { - if ( width < scaled + 48 ) - width = reference; - } - else - { - if ( width > scaled - 48 ) - width = reference; - } - - return width; - } - - - /* compute the snapped width of a given stem */ - - static FT_Pos - af_latin2_compute_stem_width( AF_GlyphHints hints, - AF_Dimension dim, - FT_Pos width, - FT_UInt base_flags, - FT_UInt stem_flags ) - { - AF_LatinMetrics metrics = (AF_LatinMetrics) hints->metrics; - AF_LatinAxis axis = & metrics->axis[dim]; - FT_Pos dist = width; - FT_Int sign = 0; - FT_Int vertical = ( dim == AF_DIMENSION_VERT ); - - FT_UNUSED( base_flags ); - - - if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) || - axis->extra_light ) - return width; - - if ( dist < 0 ) - { - dist = -width; - sign = 1; - } - - if ( ( vertical && !AF_LATIN_HINTS_DO_VERT_SNAP( hints ) ) || - ( !vertical && !AF_LATIN_HINTS_DO_HORZ_SNAP( hints ) ) ) - { - /* smooth hinting process: very lightly quantize the stem width */ - - /* leave the widths of serifs alone */ - - if ( ( stem_flags & AF_EDGE_SERIF ) && vertical && ( dist < 3 * 64 ) ) - goto Done_Width; - -#if 0 - else if ( ( base_flags & AF_EDGE_ROUND ) ) - { - if ( dist < 80 ) - dist = 64; - } - else if ( dist < 56 ) - dist = 56; -#endif - if ( axis->width_count > 0 ) - { - FT_Pos delta; - - - /* compare to standard width */ - if ( axis->width_count > 0 ) - { - delta = dist - axis->widths[0].cur; - - if ( delta < 0 ) - delta = -delta; - - if ( delta < 40 ) - { - dist = axis->widths[0].cur; - if ( dist < 48 ) - dist = 48; - - goto Done_Width; - } - } - - if ( dist < 3 * 64 ) - { - delta = dist & 63; - dist &= -64; - - if ( delta < 10 ) - dist += delta; - - else if ( delta < 32 ) - dist += 10; - - else if ( delta < 54 ) - dist += 54; - - else - dist += delta; - } - else - dist = ( dist + 32 ) & ~63; - } - } - else - { - /* strong hinting process: snap the stem width to integer pixels */ - FT_Pos org_dist = dist; - - - dist = af_latin2_snap_width( axis->widths, axis->width_count, dist ); - - if ( vertical ) - { - /* in the case of vertical hinting, always round */ - /* the stem heights to integer pixels */ - - if ( dist >= 64 ) - dist = ( dist + 16 ) & ~63; - else - dist = 64; - } - else - { - if ( AF_LATIN_HINTS_DO_MONO( hints ) ) - { - /* monochrome horizontal hinting: snap widths to integer pixels */ - /* with a different threshold */ - - if ( dist < 64 ) - dist = 64; - else - dist = ( dist + 32 ) & ~63; - } - else - { - /* for horizontal anti-aliased hinting, we adopt a more subtle */ - /* approach: we strengthen small stems, round stems whose size */ - /* is between 1 and 2 pixels to an integer, otherwise nothing */ - - if ( dist < 48 ) - dist = ( dist + 64 ) >> 1; - - else if ( dist < 128 ) - { - /* We only round to an integer width if the corresponding */ - /* distortion is less than 1/4 pixel. Otherwise this */ - /* makes everything worse since the diagonals, which are */ - /* not hinted, appear a lot bolder or thinner than the */ - /* vertical stems. */ - - FT_Int delta; - - - dist = ( dist + 22 ) & ~63; - delta = dist - org_dist; - if ( delta < 0 ) - delta = -delta; - - if ( delta >= 16 ) - { - dist = org_dist; - if ( dist < 48 ) - dist = ( dist + 64 ) >> 1; - } - } - else - /* round otherwise to prevent color fringes in LCD mode */ - dist = ( dist + 32 ) & ~63; - } - } - } - - Done_Width: - if ( sign ) - dist = -dist; - - return dist; - } - - - /* align one stem edge relative to the previous stem edge */ - - static void - af_latin2_align_linked_edge( AF_GlyphHints hints, - AF_Dimension dim, - AF_Edge base_edge, - AF_Edge stem_edge ) - { - FT_Pos dist = stem_edge->opos - base_edge->opos; - - FT_Pos fitted_width = af_latin2_compute_stem_width( hints, dim, dist, - base_edge->flags, - stem_edge->flags ); - - - stem_edge->pos = base_edge->pos + fitted_width; - - FT_TRACE5(( "LINK: edge %d (opos=%.2f) linked to (%.2f), " - "dist was %.2f, now %.2f\n", - stem_edge-hints->axis[dim].edges, stem_edge->opos / 64.0, - stem_edge->pos / 64.0, dist / 64.0, fitted_width / 64.0 )); - } - - - static void - af_latin2_align_serif_edge( AF_GlyphHints hints, - AF_Edge base, - AF_Edge serif ) - { - FT_UNUSED( hints ); - - serif->pos = base->pos + ( serif->opos - base->opos ); - } - - - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - /**** ****/ - /**** E D G E H I N T I N G ****/ - /**** ****/ - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - - - static void - af_latin2_hint_edges( AF_GlyphHints hints, - AF_Dimension dim ) - { - AF_AxisHints axis = &hints->axis[dim]; - AF_Edge edges = axis->edges; - AF_Edge edge_limit = edges + axis->num_edges; - AF_Edge edge; - AF_Edge anchor = NULL; - FT_Int has_serifs = 0; - FT_Pos anchor_drift = 0; - - - - FT_TRACE5(( "==== hinting %s edges =====\n", - dim == AF_DIMENSION_HORZ ? "vertical" : "horizontal" )); - - /* we begin by aligning all stems relative to the blue zone */ - /* if needed -- that's only for horizontal edges */ - - if ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_BLUES( hints ) ) - { - for ( edge = edges; edge < edge_limit; edge++ ) - { - AF_Width blue; - AF_Edge edge1, edge2; - - - if ( edge->flags & AF_EDGE_DONE ) - continue; - - blue = edge->blue_edge; - edge1 = NULL; - edge2 = edge->link; - - if ( blue ) - { - edge1 = edge; - } - else if ( edge2 && edge2->blue_edge ) - { - blue = edge2->blue_edge; - edge1 = edge2; - edge2 = edge; - } - - if ( !edge1 ) - continue; - - FT_TRACE5(( "BLUE: edge %d (opos=%.2f) snapped to (%.2f), " - "was (%.2f)\n", - edge1-edges, edge1->opos / 64.0, blue->fit / 64.0, - edge1->pos / 64.0 )); - - edge1->pos = blue->fit; - edge1->flags |= AF_EDGE_DONE; - - if ( edge2 && !edge2->blue_edge ) - { - af_latin2_align_linked_edge( hints, dim, edge1, edge2 ); - edge2->flags |= AF_EDGE_DONE; - } - - if ( !anchor ) - { - anchor = edge; - - anchor_drift = ( anchor->pos - anchor->opos ); - if ( edge2 ) - anchor_drift = ( anchor_drift + - ( edge2->pos - edge2->opos ) ) >> 1; - } - } - } - - /* now we will align all stem edges, trying to maintain the */ - /* relative order of stems in the glyph */ - for ( edge = edges; edge < edge_limit; edge++ ) - { - AF_Edge edge2; - - - if ( edge->flags & AF_EDGE_DONE ) - continue; - - /* skip all non-stem edges */ - edge2 = edge->link; - if ( !edge2 ) - { - has_serifs++; - continue; - } - - /* now align the stem */ - - /* this should not happen, but it's better to be safe */ - if ( edge2->blue_edge ) - { - FT_TRACE5(( "ASSERTION FAILED for edge %d\n", edge2-edges )); - - af_latin2_align_linked_edge( hints, dim, edge2, edge ); - edge->flags |= AF_EDGE_DONE; - continue; - } - - if ( !anchor ) - { - FT_Pos org_len, org_center, cur_len; - FT_Pos cur_pos1, error1, error2, u_off, d_off; - - - org_len = edge2->opos - edge->opos; - cur_len = af_latin2_compute_stem_width( hints, dim, org_len, - edge->flags, - edge2->flags ); - if ( cur_len <= 64 ) - u_off = d_off = 32; - else - { - u_off = 38; - d_off = 26; - } - - if ( cur_len < 96 ) - { - org_center = edge->opos + ( org_len >> 1 ); - - cur_pos1 = FT_PIX_ROUND( org_center ); - - error1 = org_center - ( cur_pos1 - u_off ); - if ( error1 < 0 ) - error1 = -error1; - - error2 = org_center - ( cur_pos1 + d_off ); - if ( error2 < 0 ) - error2 = -error2; - - if ( error1 < error2 ) - cur_pos1 -= u_off; - else - cur_pos1 += d_off; - - edge->pos = cur_pos1 - cur_len / 2; - edge2->pos = edge->pos + cur_len; - } - else - edge->pos = FT_PIX_ROUND( edge->opos ); - - FT_TRACE5(( "ANCHOR: edge %d (opos=%.2f) and %d (opos=%.2f)" - " snapped to (%.2f) (%.2f)\n", - edge-edges, edge->opos / 64.0, - edge2-edges, edge2->opos / 64.0, - edge->pos / 64.0, edge2->pos / 64.0 )); - anchor = edge; - - edge->flags |= AF_EDGE_DONE; - - af_latin2_align_linked_edge( hints, dim, edge, edge2 ); - - edge2->flags |= AF_EDGE_DONE; - - anchor_drift = ( ( anchor->pos - anchor->opos ) + - ( edge2->pos - edge2->opos ) ) >> 1; - - FT_TRACE5(( "DRIFT: %.2f\n", anchor_drift/64.0 )); - } - else - { - FT_Pos org_pos, org_len, org_center, cur_center, cur_len; - FT_Pos org_left, org_right; - - - org_pos = edge->opos + anchor_drift; - org_len = edge2->opos - edge->opos; - org_center = org_pos + ( org_len >> 1 ); - - cur_len = af_latin2_compute_stem_width( hints, dim, org_len, - edge->flags, - edge2->flags ); - - org_left = org_pos + ( ( org_len - cur_len ) >> 1 ); - org_right = org_pos + ( ( org_len + cur_len ) >> 1 ); - - FT_TRACE5(( "ALIGN: left=%.2f right=%.2f ", - org_left / 64.0, org_right / 64.0 )); - cur_center = org_center; - - if ( edge2->flags & AF_EDGE_DONE ) - { - FT_TRACE5(( "\n" )); - edge->pos = edge2->pos - cur_len; - } - else - { - /* we want to compare several displacement, and choose - * the one that increases fitness while minimizing - * distortion as well - */ - FT_Pos displacements[6], scores[6], org, fit, delta; - FT_UInt count = 0; - - /* note: don't even try to fit tiny stems */ - if ( cur_len < 32 ) - { - FT_TRACE5(( "tiny stem\n" )); - goto AlignStem; - } - - /* if the span is within a single pixel, don't touch it */ - if ( FT_PIX_FLOOR( org_left ) == FT_PIX_CEIL( org_right ) ) - { - FT_TRACE5(( "single pixel stem\n" )); - goto AlignStem; - } - - if ( cur_len <= 96 ) - { - /* we want to avoid the absolute worst case which is - * when the left and right edges of the span each represent - * about 50% of the gray. we'd better want to change this - * to 25/75%, since this is much more pleasant to the eye with - * very acceptable distortion - */ - FT_Pos frac_left = org_left & 63; - FT_Pos frac_right = org_right & 63; - - if ( frac_left >= 22 && frac_left <= 42 && - frac_right >= 22 && frac_right <= 42 ) - { - org = frac_left; - fit = ( org <= 32 ) ? 16 : 48; - delta = FT_ABS( fit - org ); - displacements[count] = fit - org; - scores[count++] = delta; - FT_TRACE5(( "dispA=%.2f (%d) ", ( fit - org ) / 64.0, delta )); - - org = frac_right; - fit = ( org <= 32 ) ? 16 : 48; - delta = FT_ABS( fit - org ); - displacements[count] = fit - org; - scores[count++] = delta; - FT_TRACE5(( "dispB=%.2f (%d) ", ( fit - org ) / 64.0, delta )); - } - } - - /* snapping the left edge to the grid */ - org = org_left; - fit = FT_PIX_ROUND( org ); - delta = FT_ABS( fit - org ); - displacements[count] = fit - org; - scores[count++] = delta; - FT_TRACE5(( "dispC=%.2f (%d) ", ( fit - org ) / 64.0, delta )); - - /* snapping the right edge to the grid */ - org = org_right; - fit = FT_PIX_ROUND( org ); - delta = FT_ABS( fit - org ); - displacements[count] = fit - org; - scores[count++] = delta; - FT_TRACE5(( "dispD=%.2f (%d) ", ( fit - org ) / 64.0, delta )); - - /* now find the best displacement */ - { - FT_Pos best_score = scores[0]; - FT_Pos best_disp = displacements[0]; - FT_UInt nn; - - for ( nn = 1; nn < count; nn++ ) - { - if ( scores[nn] < best_score ) - { - best_score = scores[nn]; - best_disp = displacements[nn]; - } - } - - cur_center = org_center + best_disp; - } - FT_TRACE5(( "\n" )); - } - - AlignStem: - edge->pos = cur_center - ( cur_len >> 1 ); - edge2->pos = edge->pos + cur_len; - - FT_TRACE5(( "STEM1: %d (opos=%.2f) to %d (opos=%.2f)" - " snapped to (%.2f) and (%.2f)," - " org_len=%.2f cur_len=%.2f\n", - edge-edges, edge->opos / 64.0, - edge2-edges, edge2->opos / 64.0, - edge->pos / 64.0, edge2->pos / 64.0, - org_len / 64.0, cur_len / 64.0 )); - - edge->flags |= AF_EDGE_DONE; - edge2->flags |= AF_EDGE_DONE; - - if ( edge > edges && edge->pos < edge[-1].pos ) - { - FT_TRACE5(( "BOUND: %d (pos=%.2f) to (%.2f)\n", - edge-edges, edge->pos / 64.0, edge[-1].pos / 64.0 )); - edge->pos = edge[-1].pos; - } - } - } - - /* make sure that lowercase m's maintain their symmetry */ - - /* In general, lowercase m's have six vertical edges if they are sans */ - /* serif, or twelve if they are with serifs. This implementation is */ - /* based on that assumption, and seems to work very well with most */ - /* faces. However, if for a certain face this assumption is not */ - /* true, the m is just rendered like before. In addition, any stem */ - /* correction will only be applied to symmetrical glyphs (even if the */ - /* glyph is not an m), so the potential for unwanted distortion is */ - /* relatively low. */ - - /* We don't handle horizontal edges since we can't easily assure that */ - /* the third (lowest) stem aligns with the base line; it might end up */ - /* one pixel higher or lower. */ - -#if 0 - { - FT_Int n_edges = edge_limit - edges; - - - if ( dim == AF_DIMENSION_HORZ && ( n_edges == 6 || n_edges == 12 ) ) - { - AF_Edge edge1, edge2, edge3; - FT_Pos dist1, dist2, span, delta; - - - if ( n_edges == 6 ) - { - edge1 = edges; - edge2 = edges + 2; - edge3 = edges + 4; - } - else - { - edge1 = edges + 1; - edge2 = edges + 5; - edge3 = edges + 9; - } - - dist1 = edge2->opos - edge1->opos; - dist2 = edge3->opos - edge2->opos; - - span = dist1 - dist2; - if ( span < 0 ) - span = -span; - - if ( span < 8 ) - { - delta = edge3->pos - ( 2 * edge2->pos - edge1->pos ); - edge3->pos -= delta; - if ( edge3->link ) - edge3->link->pos -= delta; - - /* move the serifs along with the stem */ - if ( n_edges == 12 ) - { - ( edges + 8 )->pos -= delta; - ( edges + 11 )->pos -= delta; - } - - edge3->flags |= AF_EDGE_DONE; - if ( edge3->link ) - edge3->link->flags |= AF_EDGE_DONE; - } - } - } -#endif - - if ( has_serifs || !anchor ) - { - /* - * now hint the remaining edges (serifs and single) in order - * to complete our processing - */ - for ( edge = edges; edge < edge_limit; edge++ ) - { - FT_Pos delta; - - - if ( edge->flags & AF_EDGE_DONE ) - continue; - - delta = 1000; - - if ( edge->serif ) - { - delta = edge->serif->opos - edge->opos; - if ( delta < 0 ) - delta = -delta; - } - - if ( delta < 64 + 16 ) - { - af_latin2_align_serif_edge( hints, edge->serif, edge ); - FT_TRACE5(( "SERIF: edge %d (opos=%.2f) serif to %d (opos=%.2f)" - " aligned to (%.2f)\n", - edge-edges, edge->opos / 64.0, - edge->serif - edges, edge->serif->opos / 64.0, - edge->pos / 64.0 )); - } - else if ( !anchor ) - { - FT_TRACE5(( "SERIF_ANCHOR: edge %d (opos=%.2f)" - " snapped to (%.2f)\n", - edge-edges, edge->opos / 64.0, edge->pos / 64.0 )); - edge->pos = FT_PIX_ROUND( edge->opos ); - anchor = edge; - } - else - { - AF_Edge before, after; - - - for ( before = edge - 1; before >= edges; before-- ) - if ( before->flags & AF_EDGE_DONE ) - break; - - for ( after = edge + 1; after < edge_limit; after++ ) - if ( after->flags & AF_EDGE_DONE ) - break; - - if ( before >= edges && before < edge && - after < edge_limit && after > edge ) - { - if ( after->opos == before->opos ) - edge->pos = before->pos; - else - edge->pos = before->pos + - FT_MulDiv( edge->opos - before->opos, - after->pos - before->pos, - after->opos - before->opos ); - FT_TRACE5(( "SERIF_LINK1: edge %d (opos=%.2f) snapped to (%.2f)" - " from %d (opos=%.2f)\n", - edge-edges, edge->opos / 64.0, edge->pos / 64.0, - before - edges, before->opos / 64.0 )); - } - else - { - edge->pos = anchor->pos + - ( ( edge->opos - anchor->opos + 16 ) & ~31 ); - - FT_TRACE5(( "SERIF_LINK2: edge %d (opos=%.2f)" - " snapped to (%.2f)\n", - edge-edges, edge->opos / 64.0, edge->pos / 64.0 )); - } - } - - edge->flags |= AF_EDGE_DONE; - - if ( edge > edges && edge->pos < edge[-1].pos ) - edge->pos = edge[-1].pos; - - if ( edge + 1 < edge_limit && - edge[1].flags & AF_EDGE_DONE && - edge->pos > edge[1].pos ) - edge->pos = edge[1].pos; - } - } - } - - - static FT_Error - af_latin2_hints_apply( FT_UInt glyph_index, - AF_GlyphHints hints, - FT_Outline* outline, - AF_LatinMetrics metrics ) - { - FT_Error error; - int dim; - - FT_UNUSED( glyph_index ); - - - error = af_glyph_hints_reload( hints, outline ); - if ( error ) - goto Exit; - - /* analyze glyph outline */ - if ( AF_HINTS_DO_HORIZONTAL( hints ) ) - { - error = af_latin2_hints_detect_features( hints, AF_DIMENSION_HORZ ); - if ( error ) - goto Exit; - } - - if ( AF_HINTS_DO_VERTICAL( hints ) ) - { - error = af_latin2_hints_detect_features( hints, AF_DIMENSION_VERT ); - if ( error ) - goto Exit; - - af_latin2_hints_compute_blue_edges( hints, metrics ); - } - - /* grid-fit the outline */ - for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) - { -#ifdef AF_CONFIG_OPTION_USE_WARPER - if ( dim == AF_DIMENSION_HORZ && - metrics->root.scaler.render_mode == FT_RENDER_MODE_NORMAL && - AF_HINTS_DO_WARP( hints ) ) - { - AF_WarperRec warper; - FT_Fixed scale; - FT_Pos delta; - - - af_warper_compute( &warper, hints, dim, &scale, &delta ); - af_glyph_hints_scale_dim( hints, dim, scale, delta ); - continue; - } -#endif /* AF_CONFIG_OPTION_USE_WARPER */ - - if ( ( dim == AF_DIMENSION_HORZ && AF_HINTS_DO_HORIZONTAL( hints ) ) || - ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) ) ) - { - af_latin2_hint_edges( hints, (AF_Dimension)dim ); - af_glyph_hints_align_edge_points( hints, (AF_Dimension)dim ); - af_glyph_hints_align_strong_points( hints, (AF_Dimension)dim ); - af_glyph_hints_align_weak_points( hints, (AF_Dimension)dim ); - } - } - af_glyph_hints_save( hints, outline ); - - Exit: - return error; - } - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** L A T I N S C R I P T C L A S S *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - - AF_DEFINE_WRITING_SYSTEM_CLASS( - af_latin2_writing_system_class, - - AF_WRITING_SYSTEM_LATIN2, - - sizeof ( AF_LatinMetricsRec ), - - (AF_WritingSystem_InitMetricsFunc) af_latin2_metrics_init, /* style_metrics_init */ - (AF_WritingSystem_ScaleMetricsFunc)af_latin2_metrics_scale, /* style_metrics_scale */ - (AF_WritingSystem_DoneMetricsFunc) NULL, /* style_metrics_done */ - (AF_WritingSystem_GetStdWidthsFunc)af_latin2_get_standard_widths, /* style_metrics_getstdw */ - - (AF_WritingSystem_InitHintsFunc) af_latin2_hints_init, /* style_hints_init */ - (AF_WritingSystem_ApplyHintsFunc) af_latin2_hints_apply /* style_hints_apply */ - ) - -#else /* !FT_OPTION_AUTOFIT2 */ - - /* ANSI C doesn't like empty source files */ - typedef int _af_latin2_dummy; - -#endif /* !FT_OPTION_AUTOFIT2 */ - - -/* END */ diff --git a/src/autofit/aflatin2.h b/src/autofit/aflatin2.h deleted file mode 100644 index c2aebc49a..000000000 --- a/src/autofit/aflatin2.h +++ /dev/null @@ -1,46 +0,0 @@ -/* ATTENTION: This file doesn't compile. It is only here as a reference */ -/* of an alternative latin hinting algorithm that was always */ -/* marked as experimental. */ - - -/**************************************************************************** - * - * aflatin2.h - * - * Auto-fitter hinting routines for latin writing system - * (specification). - * - * Copyright (C) 2003-2020 by - * David Turner, Robert Wilhelm, and Werner Lemberg. - * - * This file is part of the FreeType project, and may only be used, - * modified, and distributed under the terms of the FreeType project - * license, LICENSE.TXT. By continuing to use, modify, or distribute - * this file you indicate that you have read the license and - * understand and accept it fully. - * - */ - - -#ifndef AFLATIN2_H_ -#define AFLATIN2_H_ - -#include "afhints.h" - - -FT_BEGIN_HEADER - - - /* the `latin' writing system */ - - AF_DECLARE_WRITING_SYSTEM_CLASS( af_latin2_writing_system_class ) - - -/* */ - -FT_END_HEADER - -#endif /* AFLATIN_H_ */ - - -/* END */ diff --git a/src/autofit/afloader.c b/src/autofit/afloader.c index c35d85c4c..a06d49ad7 100644 --- a/src/autofit/afloader.c +++ b/src/autofit/afloader.c @@ -4,7 +4,7 @@ * * Auto-fitter glyph loading routines (body). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -105,7 +105,6 @@ globals->stem_darkening_for_ppem; FT_Fixed em_size = af_intToFixed( face->units_per_EM ); - FT_Fixed em_ratio = FT_DivFix( af_intToFixed( 1000 ), em_size ); FT_Matrix scale_down_matrix = { 0x10000L, 0, 0, 0x10000L }; @@ -142,12 +141,11 @@ darken_by_font_units_x = - af_intToFixed( af_loader_compute_darkening( loader, - face, - stdVW ) ); - darken_x = FT_DivFix( FT_MulFix( darken_by_font_units_x, - size_metrics->x_scale ), - em_ratio ); + af_loader_compute_darkening( loader, + face, + stdVW ) ; + darken_x = FT_MulFix( darken_by_font_units_x, + size_metrics->x_scale ); globals->standard_vertical_width = stdVW; globals->stem_darkening_for_ppem = size_metrics->x_ppem; @@ -161,12 +159,11 @@ darken_by_font_units_y = - af_intToFixed( af_loader_compute_darkening( loader, - face, - stdHW ) ); - darken_y = FT_DivFix( FT_MulFix( darken_by_font_units_y, - size_metrics->y_scale ), - em_ratio ); + af_loader_compute_darkening( loader, + face, + stdHW ) ; + darken_y = FT_MulFix( darken_by_font_units_y, + size_metrics->y_scale ); globals->standard_horizontal_width = stdHW; globals->stem_darkening_for_ppem = size_metrics->x_ppem; @@ -300,12 +297,6 @@ if ( error ) goto Exit; -#ifdef FT_OPTION_AUTOFIT2 - /* XXX: undocumented hook to activate the latin2 writing system. */ - if ( load_flags & ( 1UL << 20 ) ) - style_options = AF_STYLE_LTN2_DFLT; -#endif - /* * Glyphs (really code points) are assigned to scripts. Script * analysis is done lazily: For each glyph that passes through here, @@ -482,8 +473,8 @@ FT_Pos pp2x = loader->pp2.x; - loader->pp1.x = FT_PIX_ROUND( pp1x + hints->xmin_delta ); - loader->pp2.x = FT_PIX_ROUND( pp2x + hints->xmax_delta ); + loader->pp1.x = FT_PIX_ROUND( pp1x ); + loader->pp2.x = FT_PIX_ROUND( pp2x ); slot->lsb_delta = loader->pp1.x - pp1x; slot->rsb_delta = loader->pp2.x - pp2x; @@ -594,7 +585,7 @@ * * XXX: Currently a crude adaption of the original algorithm. Do better? */ - FT_LOCAL_DEF( FT_Int32 ) + FT_LOCAL_DEF( FT_Fixed ) af_loader_compute_darkening( AF_Loader loader, FT_Face face, FT_Pos standard_width ) @@ -713,7 +704,7 @@ } /* Convert darken_amount from per 1000 em to true character space. */ - return af_fixedToInt( FT_DivFix( darken_amount, em_ratio ) ); + return FT_DivFix( darken_amount, em_ratio ); } diff --git a/src/autofit/afloader.h b/src/autofit/afloader.h index 97282371c..b4936a872 100644 --- a/src/autofit/afloader.h +++ b/src/autofit/afloader.h @@ -4,7 +4,7 @@ * * Auto-fitter glyph loading routines (specification). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -75,7 +75,7 @@ FT_BEGIN_HEADER FT_UInt gindex, FT_Int32 load_flags ); - FT_LOCAL_DEF( FT_Int32 ) + FT_LOCAL_DEF( FT_Fixed ) af_loader_compute_darkening( AF_Loader loader, FT_Face face, FT_Pos standard_width ); diff --git a/src/autofit/afmodule.c b/src/autofit/afmodule.c index e16494460..76f9b3733 100644 --- a/src/autofit/afmodule.c +++ b/src/autofit/afmodule.c @@ -4,7 +4,7 @@ * * Auto-fitter module implementation (body). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -48,7 +48,7 @@ int _af_debug_disable_blue_hints; /* we use a global object instead of a local one for debugging */ - AF_GlyphHintsRec _af_debug_hints_rec[1]; + static AF_GlyphHintsRec _af_debug_hints_rec[1]; void* _af_debug_hints = _af_debug_hints_rec; #endif @@ -148,7 +148,7 @@ if ( !af_style_classes[ss] ) { - FT_TRACE0(( "af_property_set: Invalid value %d for property `%s'\n", + FT_TRACE2(( "af_property_set: Invalid value %d for property `%s'\n", *fallback_script, property_name )); return FT_THROW( Invalid_Argument ); } @@ -190,35 +190,6 @@ return error; } -#ifdef AF_CONFIG_OPTION_USE_WARPER - else if ( !ft_strcmp( property_name, "warping" ) ) - { -#ifdef FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES - if ( value_is_string ) - { - const char* s = (const char*)value; - long w = ft_strtol( s, NULL, 10 ); - - - if ( w == 0 ) - module->warping = 0; - else if ( w == 1 ) - module->warping = 1; - else - return FT_THROW( Invalid_Argument ); - } - else -#endif - { - FT_Bool* warping = (FT_Bool*)value; - - - module->warping = *warping; - } - - return error; - } -#endif /* AF_CONFIG_OPTION_USE_WARPER */ else if ( !ft_strcmp( property_name, "darkening-parameters" ) ) { FT_Int* darken_params; @@ -307,7 +278,7 @@ return error; } - FT_TRACE0(( "af_property_set: missing property `%s'\n", + FT_TRACE2(( "af_property_set: missing property `%s'\n", property_name )); return FT_THROW( Missing_Property ); } @@ -322,9 +293,6 @@ AF_Module module = (AF_Module)ft_module; FT_UInt fallback_style = module->fallback_style; FT_UInt default_script = module->default_script; -#ifdef AF_CONFIG_OPTION_USE_WARPER - FT_Bool warping = module->warping; -#endif if ( !ft_strcmp( property_name, "glyph-to-script-map" ) ) @@ -371,17 +339,6 @@ return error; } -#ifdef AF_CONFIG_OPTION_USE_WARPER - else if ( !ft_strcmp( property_name, "warping" ) ) - { - FT_Bool* val = (FT_Bool*)value; - - - *val = warping; - - return error; - } -#endif /* AF_CONFIG_OPTION_USE_WARPER */ else if ( !ft_strcmp( property_name, "darkening-parameters" ) ) { FT_Int* darken_params = module->darken_params; @@ -410,7 +367,7 @@ return error; } - FT_TRACE0(( "af_property_get: missing property `%s'\n", + FT_TRACE2(( "af_property_get: missing property `%s'\n", property_name )); return FT_THROW( Missing_Property ); } @@ -447,9 +404,6 @@ module->fallback_style = AF_STYLE_FALLBACK; module->default_script = AF_SCRIPT_DEFAULT; -#ifdef AF_CONFIG_OPTION_USE_WARPER - module->warping = 0; -#endif module->no_stem_darkening = TRUE; module->darken_params[0] = CFF_CONFIG_OPTION_DARKENING_PARAMETER_X1; diff --git a/src/autofit/afmodule.h b/src/autofit/afmodule.h index e8fe4a93a..c5bd46820 100644 --- a/src/autofit/afmodule.h +++ b/src/autofit/afmodule.h @@ -4,7 +4,7 @@ * * Auto-fitter module implementation (specification). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -37,9 +37,6 @@ FT_BEGIN_HEADER FT_UInt fallback_style; FT_UInt default_script; -#ifdef AF_CONFIG_OPTION_USE_WARPER - FT_Bool warping; -#endif FT_Bool no_stem_darkening; FT_Int darken_params[8]; diff --git a/src/autofit/afranges.c b/src/autofit/afranges.c index c8ebf5e78..e06f182dd 100644 --- a/src/autofit/afranges.c +++ b/src/autofit/afranges.c @@ -4,7 +4,7 @@ * * Auto-fitter Unicode script ranges (body). * - * Copyright (C) 2013-2020 by + * Copyright (C) 2013-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/autofit/afranges.h b/src/autofit/afranges.h index c2ffda4b0..841d630aa 100644 --- a/src/autofit/afranges.h +++ b/src/autofit/afranges.h @@ -4,7 +4,7 @@ * * Auto-fitter Unicode script ranges (specification). * - * Copyright (C) 2013-2020 by + * Copyright (C) 2013-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/autofit/afscript.h b/src/autofit/afscript.h index 4cf9cc19f..af78d573e 100644 --- a/src/autofit/afscript.h +++ b/src/autofit/afscript.h @@ -4,7 +4,7 @@ * * Auto-fitter scripts (specification only). * - * Copyright (C) 2013-2020 by + * Copyright (C) 2013-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/autofit/afshaper.c b/src/autofit/afshaper.c index bbf7b6b1f..5d078937e 100644 --- a/src/autofit/afshaper.c +++ b/src/autofit/afshaper.c @@ -4,7 +4,7 @@ * * HarfBuzz interface for accessing OpenType features (body). * - * Copyright (C) 2013-2020 by + * Copyright (C) 2013-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -132,13 +132,24 @@ /* Convert a HarfBuzz script tag into the corresponding OpenType */ /* tag or tags -- some Indic scripts like Devanagari have an old */ /* and a new set of features. */ - hb_ot_tags_from_script( script, - &script_tags[0], - &script_tags[1] ); + { + unsigned int tags_count = 3; + hb_tag_t tags[3]; + + + hb_ot_tags_from_script_and_language( script, + HB_LANGUAGE_INVALID, + &tags_count, + tags, + NULL, + NULL ); + script_tags[0] = tags_count > 0 ? tags[0] : HB_TAG_NONE; + script_tags[1] = tags_count > 1 ? tags[1] : HB_TAG_NONE; + script_tags[2] = tags_count > 2 ? tags[2] : HB_TAG_NONE; + } - /* `hb_ot_tags_from_script' usually returns HB_OT_TAG_DEFAULT_SCRIPT */ - /* as the second tag. We change that to HB_TAG_NONE except for the */ - /* default script. */ + /* If the second tag is HB_OT_TAG_DEFAULT_SCRIPT, change that to */ + /* HB_TAG_NONE except for the default script. */ if ( default_script ) { if ( script_tags[0] == HB_TAG_NONE ) @@ -157,9 +168,6 @@ /* HarfBuzz maps them to `DFLT', which we don't want to handle here */ if ( script_tags[0] == HB_OT_TAG_DEFAULT_SCRIPT ) goto Exit; - - if ( script_tags[1] == HB_OT_TAG_DEFAULT_SCRIPT ) - script_tags[1] = HB_TAG_NONE; } gsub_lookups = hb_set_create(); @@ -173,9 +181,9 @@ if ( hb_set_is_empty( gsub_lookups ) ) goto Exit; /* nothing to do */ - FT_TRACE4(( "GSUB lookups (style `%s'):\n" - " ", + FT_TRACE4(( "GSUB lookups (style `%s'):\n", af_style_names[style_class->style] )); + FT_TRACE4(( " " )); #ifdef FT_DEBUG_LEVEL_TRACE count = 0; @@ -202,12 +210,13 @@ #ifdef FT_DEBUG_LEVEL_TRACE if ( !count ) FT_TRACE4(( " (none)" )); - FT_TRACE4(( "\n\n" )); + FT_TRACE4(( "\n" )); + FT_TRACE4(( "\n" )); #endif - FT_TRACE4(( "GPOS lookups (style `%s'):\n" - " ", + FT_TRACE4(( "GPOS lookups (style `%s'):\n", af_style_names[style_class->style] )); + FT_TRACE4(( " " )); gpos_lookups = hb_set_create(); hb_ot_layout_collect_lookups( face, @@ -242,7 +251,8 @@ #ifdef FT_DEBUG_LEVEL_TRACE if ( !count ) FT_TRACE4(( " (none)" )); - FT_TRACE4(( "\n\n" )); + FT_TRACE4(( "\n" )); + FT_TRACE4(( "\n" )); #endif /* @@ -353,8 +363,10 @@ { #ifdef FT_DEBUG_LEVEL_TRACE if ( !( count % 10 ) ) - FT_TRACE4(( "\n" - " " )); + { + FT_TRACE4(( "\n" )); + FT_TRACE4(( " " )); + } FT_TRACE4(( " %d", idx )); count++; @@ -376,9 +388,12 @@ #ifdef FT_DEBUG_LEVEL_TRACE if ( !count ) - FT_TRACE4(( "\n" - " (none)" )); - FT_TRACE4(( "\n\n" )); + { + FT_TRACE4(( "\n" )); + FT_TRACE4(( " (none)" )); + } + FT_TRACE4(( "\n" )); + FT_TRACE4(( "\n" )); #endif Exit: diff --git a/src/autofit/afshaper.h b/src/autofit/afshaper.h index 138c27b32..cf3f81342 100644 --- a/src/autofit/afshaper.h +++ b/src/autofit/afshaper.h @@ -4,7 +4,7 @@ * * HarfBuzz interface for accessing OpenType features (specification). * - * Copyright (C) 2013-2020 by + * Copyright (C) 2013-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/autofit/afstyles.h b/src/autofit/afstyles.h index 9113ec451..64c808c58 100644 --- a/src/autofit/afstyles.h +++ b/src/autofit/afstyles.h @@ -4,7 +4,7 @@ * * Auto-fitter styles (specification only). * - * Copyright (C) 2013-2020 by + * Copyright (C) 2013-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -299,15 +299,6 @@ AF_BLUE_STRINGSET_LATP, AF_COVERAGE_DEFAULT ) -#ifdef FT_OPTION_AUTOFIT2 - STYLE( ltn2_dflt, LTN2_DFLT, - "Latin 2 default style", - AF_WRITING_SYSTEM_LATIN2, - AF_SCRIPT_LATN, - AF_BLUE_STRINGSET_LATN, - AF_COVERAGE_DEFAULT ) -#endif - STYLE( lisu_dflt, LISU_DFLT, "Lisu default style", AF_WRITING_SYSTEM_LATIN, diff --git a/src/autofit/aftypes.h b/src/autofit/aftypes.h index 5f040c6b4..1d792b947 100644 --- a/src/autofit/aftypes.h +++ b/src/autofit/aftypes.h @@ -4,7 +4,7 @@ * * Auto-fitter types (specification only). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -92,63 +92,6 @@ extern void* _af_debug_hints; FT_Pos threshold ); - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** A N G L E T Y P E S *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - /* - * The auto-fitter doesn't need a very high angular accuracy; - * this allows us to speed up some computations considerably with a - * light Cordic algorithm (see afangles.c). - */ - - typedef FT_Int AF_Angle; - - -#define AF_ANGLE_PI 256 -#define AF_ANGLE_2PI ( AF_ANGLE_PI * 2 ) -#define AF_ANGLE_PI2 ( AF_ANGLE_PI / 2 ) -#define AF_ANGLE_PI4 ( AF_ANGLE_PI / 4 ) - - -#if 0 - /* - * compute the angle of a given 2-D vector - */ - FT_LOCAL( AF_Angle ) - af_angle_atan( FT_Pos dx, - FT_Pos dy ); - - - /* - * compute `angle2 - angle1'; the result is always within - * the range [-AF_ANGLE_PI .. AF_ANGLE_PI - 1] - */ - FT_LOCAL( AF_Angle ) - af_angle_diff( AF_Angle angle1, - AF_Angle angle2 ); -#endif /* 0 */ - - -#define AF_ANGLE_DIFF( result, angle1, angle2 ) \ - FT_BEGIN_STMNT \ - AF_Angle _delta = (angle2) - (angle1); \ - \ - \ - while ( _delta <= -AF_ANGLE_PI ) \ - _delta += AF_ANGLE_2PI; \ - \ - while ( _delta > AF_ANGLE_PI ) \ - _delta -= AF_ANGLE_2PI; \ - \ - result = _delta; \ - FT_END_STMNT - - /* * opaque handle to glyph-specific hints -- see `afhints.h' for more * details @@ -172,7 +115,6 @@ extern void* _af_debug_hints; #define AF_SCALER_FLAG_NO_HORIZONTAL 1U /* disable horizontal hinting */ #define AF_SCALER_FLAG_NO_VERTICAL 2U /* disable vertical hinting */ #define AF_SCALER_FLAG_NO_ADVANCE 4U /* disable advance hinting */ -#define AF_SCALER_FLAG_NO_WARPER 8U /* disable warper */ typedef struct AF_ScalerRec_ @@ -256,7 +198,6 @@ extern void* _af_debug_hints; * outline according to the results of the glyph analyzer. */ -#define AFWRTSYS_H_ /* don't load header files */ #undef WRITING_SYSTEM #define WRITING_SYSTEM( ws, WS ) \ AF_WRITING_SYSTEM_ ## WS, @@ -265,14 +206,12 @@ extern void* _af_debug_hints; typedef enum AF_WritingSystem_ { -#include "afwrtsys.h" +#include "afws-iter.h" AF_WRITING_SYSTEM_MAX /* do not remove */ } AF_WritingSystem; -#undef AFWRTSYS_H_ - typedef struct AF_WritingSystemClassRec_ { diff --git a/src/autofit/afwarp.c b/src/autofit/afwarp.c deleted file mode 100644 index 808280df5..000000000 --- a/src/autofit/afwarp.c +++ /dev/null @@ -1,373 +0,0 @@ -/**************************************************************************** - * - * afwarp.c - * - * Auto-fitter warping algorithm (body). - * - * Copyright (C) 2006-2020 by - * David Turner, Robert Wilhelm, and Werner Lemberg. - * - * This file is part of the FreeType project, and may only be used, - * modified, and distributed under the terms of the FreeType project - * license, LICENSE.TXT. By continuing to use, modify, or distribute - * this file you indicate that you have read the license and - * understand and accept it fully. - * - */ - - - /* - * The idea of the warping code is to slightly scale and shift a glyph - * within a single dimension so that as much of its segments are aligned - * (more or less) on the grid. To find out the optimal scaling and - * shifting value, various parameter combinations are tried and scored. - */ - -#include "afwarp.h" - -#ifdef AF_CONFIG_OPTION_USE_WARPER - - /************************************************************************** - * - * The macro FT_COMPONENT is used in trace mode. It is an implicit - * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log - * messages during execution. - */ -#undef FT_COMPONENT -#define FT_COMPONENT afwarp - - - /* The weights cover the range 0/64 - 63/64 of a pixel. Obviously, */ - /* values around a half pixel (which means exactly between two grid */ - /* lines) gets the worst weight. */ -#if 1 - static const AF_WarpScore - af_warper_weights[64] = - { - 35, 32, 30, 25, 20, 15, 12, 10, 5, 1, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, -1, -2, -5, -8,-10,-10,-20,-20,-30,-30, - - -30,-30,-20,-20,-10,-10, -8, -5, -2, -1, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 1, 5, 10, 12, 15, 20, 25, 30, 32, - }; -#else - static const AF_WarpScore - af_warper_weights[64] = - { - 30, 20, 10, 5, 4, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, -1, -2, -2, -5, -5,-10,-10,-15,-20, - - -20,-15,-15,-10,-10, -5, -5, -2, -2, -1, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 10, 20, - }; -#endif - - - /* Score segments for a given `scale' and `delta' in the range */ - /* `xx1' to `xx2', and store the best result in `warper'. If */ - /* the new best score is equal to the old one, prefer the */ - /* value with a smaller distortion (around `base_distort'). */ - - static void - af_warper_compute_line_best( AF_Warper warper, - FT_Fixed scale, - FT_Pos delta, - FT_Pos xx1, - FT_Pos xx2, - AF_WarpScore base_distort, - AF_Segment segments, - FT_Int num_segments ) - { - FT_Int idx_min, idx_max, idx0; - FT_Int nn; - AF_WarpScore scores[65]; - - - for ( nn = 0; nn < 65; nn++ ) - scores[nn] = 0; - - idx0 = xx1 - warper->t1; - - /* compute minimum and maximum indices */ - { - FT_Pos xx1min = warper->x1min; - FT_Pos xx1max = warper->x1max; - FT_Pos w = xx2 - xx1; - - - if ( xx1min + w < warper->x2min ) - xx1min = warper->x2min - w; - - if ( xx1max + w > warper->x2max ) - xx1max = warper->x2max - w; - - idx_min = xx1min - warper->t1; - idx_max = xx1max - warper->t1; - - if ( idx_min < 0 || idx_min > idx_max || idx_max > 64 ) - { - FT_TRACE5(( "invalid indices:\n" - " min=%d max=%d, xx1=%ld xx2=%ld,\n" - " x1min=%ld x1max=%ld, x2min=%ld x2max=%ld\n", - idx_min, idx_max, xx1, xx2, - warper->x1min, warper->x1max, - warper->x2min, warper->x2max )); - return; - } - } - - for ( nn = 0; nn < num_segments; nn++ ) - { - FT_Pos len = segments[nn].max_coord - segments[nn].min_coord; - FT_Pos y0 = FT_MulFix( segments[nn].pos, scale ) + delta; - FT_Pos y = y0 + ( idx_min - idx0 ); - FT_Int idx; - - - /* score the length of the segments for the given range */ - for ( idx = idx_min; idx <= idx_max; idx++, y++ ) - scores[idx] += af_warper_weights[y & 63] * len; - } - - /* find best score */ - { - FT_Int idx; - - - for ( idx = idx_min; idx <= idx_max; idx++ ) - { - AF_WarpScore score = scores[idx]; - AF_WarpScore distort = base_distort + ( idx - idx0 ); - - - if ( score > warper->best_score || - ( score == warper->best_score && - distort < warper->best_distort ) ) - { - warper->best_score = score; - warper->best_distort = distort; - warper->best_scale = scale; - warper->best_delta = delta + ( idx - idx0 ); - } - } - } - } - - - /* Compute optimal scaling and delta values for a given glyph and */ - /* dimension. */ - - FT_LOCAL_DEF( void ) - af_warper_compute( AF_Warper warper, - AF_GlyphHints hints, - AF_Dimension dim, - FT_Fixed *a_scale, - FT_Pos *a_delta ) - { - AF_AxisHints axis; - AF_Point points; - - FT_Fixed org_scale; - FT_Pos org_delta; - - FT_Int nn, num_points, num_segments; - FT_Int X1, X2; - FT_Int w; - - AF_WarpScore base_distort; - AF_Segment segments; - - - /* get original scaling transformation */ - if ( dim == AF_DIMENSION_VERT ) - { - org_scale = hints->y_scale; - org_delta = hints->y_delta; - } - else - { - org_scale = hints->x_scale; - org_delta = hints->x_delta; - } - - warper->best_scale = org_scale; - warper->best_delta = org_delta; - warper->best_score = FT_INT_MIN; - warper->best_distort = 0; - - axis = &hints->axis[dim]; - segments = axis->segments; - num_segments = axis->num_segments; - points = hints->points; - num_points = hints->num_points; - - *a_scale = org_scale; - *a_delta = org_delta; - - /* get X1 and X2, minimum and maximum in original coordinates */ - if ( num_segments < 1 ) - return; - -#if 1 - X1 = X2 = points[0].fx; - for ( nn = 1; nn < num_points; nn++ ) - { - FT_Int X = points[nn].fx; - - - if ( X < X1 ) - X1 = X; - if ( X > X2 ) - X2 = X; - } -#else - X1 = X2 = segments[0].pos; - for ( nn = 1; nn < num_segments; nn++ ) - { - FT_Int X = segments[nn].pos; - - - if ( X < X1 ) - X1 = X; - if ( X > X2 ) - X2 = X; - } -#endif - - if ( X1 >= X2 ) - return; - - warper->x1 = FT_MulFix( X1, org_scale ) + org_delta; - warper->x2 = FT_MulFix( X2, org_scale ) + org_delta; - - warper->t1 = AF_WARPER_FLOOR( warper->x1 ); - warper->t2 = AF_WARPER_CEIL( warper->x2 ); - - /* examine a half pixel wide range around the maximum coordinates */ - warper->x1min = warper->x1 & ~31; - warper->x1max = warper->x1min + 32; - warper->x2min = warper->x2 & ~31; - warper->x2max = warper->x2min + 32; - - if ( warper->x1max > warper->x2 ) - warper->x1max = warper->x2; - - if ( warper->x2min < warper->x1 ) - warper->x2min = warper->x1; - - warper->w0 = warper->x2 - warper->x1; - - if ( warper->w0 <= 64 ) - { - warper->x1max = warper->x1; - warper->x2min = warper->x2; - } - - /* examine (at most) a pixel wide range around the natural width */ - warper->wmin = warper->x2min - warper->x1max; - warper->wmax = warper->x2max - warper->x1min; - -#if 1 - /* some heuristics to reduce the number of widths to be examined */ - { - int margin = 16; - - - if ( warper->w0 <= 128 ) - { - margin = 8; - if ( warper->w0 <= 96 ) - margin = 4; - } - - if ( warper->wmin < warper->w0 - margin ) - warper->wmin = warper->w0 - margin; - - if ( warper->wmax > warper->w0 + margin ) - warper->wmax = warper->w0 + margin; - } - - if ( warper->wmin < warper->w0 * 3 / 4 ) - warper->wmin = warper->w0 * 3 / 4; - - if ( warper->wmax > warper->w0 * 5 / 4 ) - warper->wmax = warper->w0 * 5 / 4; -#else - /* no scaling, just translation */ - warper->wmin = warper->wmax = warper->w0; -#endif - - for ( w = warper->wmin; w <= warper->wmax; w++ ) - { - FT_Fixed new_scale; - FT_Pos new_delta; - FT_Pos xx1, xx2; - - - /* compute min and max positions for given width, */ - /* assuring that they stay within the coordinate ranges */ - xx1 = warper->x1; - xx2 = warper->x2; - if ( w >= warper->w0 ) - { - xx1 -= w - warper->w0; - if ( xx1 < warper->x1min ) - { - xx2 += warper->x1min - xx1; - xx1 = warper->x1min; - } - } - else - { - xx1 -= w - warper->w0; - if ( xx1 > warper->x1max ) - { - xx2 -= xx1 - warper->x1max; - xx1 = warper->x1max; - } - } - - if ( xx1 < warper->x1 ) - base_distort = warper->x1 - xx1; - else - base_distort = xx1 - warper->x1; - - if ( xx2 < warper->x2 ) - base_distort += warper->x2 - xx2; - else - base_distort += xx2 - warper->x2; - - /* give base distortion a greater weight while scoring */ - base_distort *= 10; - - new_scale = org_scale + FT_DivFix( w - warper->w0, X2 - X1 ); - new_delta = xx1 - FT_MulFix( X1, new_scale ); - - af_warper_compute_line_best( warper, new_scale, new_delta, xx1, xx2, - base_distort, - segments, num_segments ); - } - - { - FT_Fixed best_scale = warper->best_scale; - FT_Pos best_delta = warper->best_delta; - - - hints->xmin_delta = FT_MulFix( X1, best_scale - org_scale ) - + best_delta; - hints->xmax_delta = FT_MulFix( X2, best_scale - org_scale ) - + best_delta; - - *a_scale = best_scale; - *a_delta = best_delta; - } - } - -#else /* !AF_CONFIG_OPTION_USE_WARPER */ - - /* ANSI C doesn't like empty source files */ - typedef int _af_warp_dummy; - -#endif /* !AF_CONFIG_OPTION_USE_WARPER */ - -/* END */ diff --git a/src/autofit/afwarp.h b/src/autofit/afwarp.h deleted file mode 100644 index cdea23e7d..000000000 --- a/src/autofit/afwarp.h +++ /dev/null @@ -1,66 +0,0 @@ -/**************************************************************************** - * - * afwarp.h - * - * Auto-fitter warping algorithm (specification). - * - * Copyright (C) 2006-2020 by - * David Turner, Robert Wilhelm, and Werner Lemberg. - * - * This file is part of the FreeType project, and may only be used, - * modified, and distributed under the terms of the FreeType project - * license, LICENSE.TXT. By continuing to use, modify, or distribute - * this file you indicate that you have read the license and - * understand and accept it fully. - * - */ - - -#ifndef AFWARP_H_ -#define AFWARP_H_ - -#include "afhints.h" - -FT_BEGIN_HEADER - -#define AF_WARPER_SCALE - -#define AF_WARPER_FLOOR( x ) ( (x) & ~FT_TYPEOF( x )63 ) -#define AF_WARPER_CEIL( x ) AF_WARPER_FLOOR( (x) + 63 ) - - - typedef FT_Int32 AF_WarpScore; - - typedef struct AF_WarperRec_ - { - FT_Pos x1, x2; - FT_Pos t1, t2; - FT_Pos x1min, x1max; - FT_Pos x2min, x2max; - FT_Pos w0, wmin, wmax; - - FT_Fixed best_scale; - FT_Pos best_delta; - AF_WarpScore best_score; - AF_WarpScore best_distort; - - } AF_WarperRec, *AF_Warper; - - -#ifdef AF_CONFIG_OPTION_USE_WARPER - FT_LOCAL( void ) - af_warper_compute( AF_Warper warper, - AF_GlyphHints hints, - AF_Dimension dim, - FT_Fixed *a_scale, - FT_Pos *a_delta ); -#endif - - -FT_END_HEADER - - -#endif /* AFWARP_H_ */ - - -/* END */ diff --git a/src/autofit/afwrtsys.h b/src/autofit/afwrtsys.h deleted file mode 100644 index 3990633d2..000000000 --- a/src/autofit/afwrtsys.h +++ /dev/null @@ -1,52 +0,0 @@ -/**************************************************************************** - * - * afwrtsys.h - * - * Auto-fitter writing systems (specification only). - * - * Copyright (C) 2013-2020 by - * David Turner, Robert Wilhelm, and Werner Lemberg. - * - * This file is part of the FreeType project, and may only be used, - * modified, and distributed under the terms of the FreeType project - * license, LICENSE.TXT. By continuing to use, modify, or distribute - * this file you indicate that you have read the license and - * understand and accept it fully. - * - */ - - -#ifndef AFWRTSYS_H_ -#define AFWRTSYS_H_ - - /* Since preprocessor directives can't create other preprocessor */ - /* directives, we have to include the header files manually. */ - -#include "afdummy.h" -#include "aflatin.h" -#include "afcjk.h" -#include "afindic.h" -#ifdef FT_OPTION_AUTOFIT2 -#include "aflatin2.h" -#endif - -#endif /* AFWRTSYS_H_ */ - - - /* The following part can be included multiple times. */ - /* Define `WRITING_SYSTEM' as needed. */ - - - /* Add new writing systems here. The arguments are the writing system */ - /* name in lowercase and uppercase, respectively. */ - - WRITING_SYSTEM( dummy, DUMMY ) - WRITING_SYSTEM( latin, LATIN ) - WRITING_SYSTEM( cjk, CJK ) - WRITING_SYSTEM( indic, INDIC ) -#ifdef FT_OPTION_AUTOFIT2 - WRITING_SYSTEM( latin2, LATIN2 ) -#endif - - -/* END */ diff --git a/src/autofit/afws-decl.h b/src/autofit/afws-decl.h new file mode 100644 index 000000000..c10dd57e7 --- /dev/null +++ b/src/autofit/afws-decl.h @@ -0,0 +1,33 @@ +/**************************************************************************** + * + * afws-decl.h + * + * Auto-fitter writing system declarations (specification only). + * + * Copyright (C) 2013-2021 by + * David Turner, Robert Wilhelm, and Werner Lemberg. + * + * This file is part of the FreeType project, and may only be used, + * modified, and distributed under the terms of the FreeType project + * license, LICENSE.TXT. By continuing to use, modify, or distribute + * this file you indicate that you have read the license and + * understand and accept it fully. + * + */ + + +#ifndef AFWS_DECL_H_ +#define AFWS_DECL_H_ + + /* Since preprocessor directives can't create other preprocessor */ + /* directives, we have to include the header files manually. */ + +#include "afdummy.h" +#include "aflatin.h" +#include "afcjk.h" +#include "afindic.h" + +#endif /* AFWS_DECL_H_ */ + + +/* END */ diff --git a/src/autofit/afws-iter.h b/src/autofit/afws-iter.h new file mode 100644 index 000000000..55714203e --- /dev/null +++ b/src/autofit/afws-iter.h @@ -0,0 +1,31 @@ +/**************************************************************************** + * + * afws-iter.h + * + * Auto-fitter writing systems iterator (specification only). + * + * Copyright (C) 2013-2021 by + * David Turner, Robert Wilhelm, and Werner Lemberg. + * + * This file is part of the FreeType project, and may only be used, + * modified, and distributed under the terms of the FreeType project + * license, LICENSE.TXT. By continuing to use, modify, or distribute + * this file you indicate that you have read the license and + * understand and accept it fully. + * + */ + + /* This header may be included multiple times. */ + /* Define `WRITING_SYSTEM' as needed. */ + + + /* Add new writing systems here. The arguments are the writing system */ + /* name in lowercase and uppercase, respectively. */ + + WRITING_SYSTEM( dummy, DUMMY ) + WRITING_SYSTEM( latin, LATIN ) + WRITING_SYSTEM( cjk, CJK ) + WRITING_SYSTEM( indic, INDIC ) + + +/* END */ diff --git a/src/autofit/autofit.c b/src/autofit/autofit.c index ef5e7f145..7e692b4de 100644 --- a/src/autofit/autofit.c +++ b/src/autofit/autofit.c @@ -4,7 +4,7 @@ * * Auto-fitter module (body). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -18,7 +18,6 @@ #define FT_MAKE_OPTION_SINGLE_OBJECT -#include "afangles.c" #include "afblue.c" #include "afcjk.c" #include "afdummy.c" @@ -26,12 +25,10 @@ #include "afhints.c" #include "afindic.c" #include "aflatin.c" -#include "aflatin2.c" #include "afloader.c" #include "afmodule.c" #include "afranges.c" #include "afshaper.c" -#include "afwarp.c" /* END */ diff --git a/src/autofit/module.mk b/src/autofit/module.mk index c32781f47..fab3a6bd6 100644 --- a/src/autofit/module.mk +++ b/src/autofit/module.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 2003-2020 by +# Copyright (C) 2003-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/autofit/rules.mk b/src/autofit/rules.mk index 553ddce6b..499c0e083 100644 --- a/src/autofit/rules.mk +++ b/src/autofit/rules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 2003-2020 by +# Copyright (C) 2003-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -28,8 +28,7 @@ AUTOF_COMPILE := $(CC) $(ANSIFLAGS) \ # AUTOF driver sources (i.e., C files) # -AUTOF_DRV_SRC := $(AUTOF_DIR)/afangles.c \ - $(AUTOF_DIR)/afblue.c \ +AUTOF_DRV_SRC := $(AUTOF_DIR)/afblue.c \ $(AUTOF_DIR)/afcjk.c \ $(AUTOF_DIR)/afdummy.c \ $(AUTOF_DIR)/afglobal.c \ @@ -40,17 +39,17 @@ AUTOF_DRV_SRC := $(AUTOF_DIR)/afangles.c \ $(AUTOF_DIR)/afmodule.c \ $(AUTOF_DIR)/afranges.c \ $(AUTOF_DIR)/afshaper.c \ - $(AUTOF_DIR)/afwarp.c # AUTOF driver headers # -AUTOF_DRV_H := $(AUTOF_DRV_SRC:%c=%h) \ - $(AUTOF_DIR)/afcover.h \ - $(AUTOF_DIR)/aferrors.h \ - $(AUTOF_DIR)/afscript.h \ - $(AUTOF_DIR)/afstyles.h \ - $(AUTOF_DIR)/aftypes.h \ - $(AUTOF_DIR)/afwrtsys.h +AUTOF_DRV_H := $(AUTOF_DRV_SRC:%c=%h) \ + $(AUTOF_DIR)/afcover.h \ + $(AUTOF_DIR)/aferrors.h \ + $(AUTOF_DIR)/afscript.h \ + $(AUTOF_DIR)/afstyles.h \ + $(AUTOF_DIR)/aftypes.h \ + $(AUTOF_DIR)/afws-decl.h \ + $(AUTOF_DIR)/afws-iter.h # AUTOF driver object(s) diff --git a/src/base/ftadvanc.c b/src/base/ftadvanc.c index c689e6a15..f20b9928a 100644 --- a/src/base/ftadvanc.c +++ b/src/base/ftadvanc.c @@ -4,7 +4,7 @@ * * Quick computation of advance widths (body). * - * Copyright (C) 2008-2020 by + * Copyright (C) 2008-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/base/ftbase.c b/src/base/ftbase.c index bfbaffd64..7366bc46d 100644 --- a/src/base/ftbase.c +++ b/src/base/ftbase.c @@ -4,7 +4,7 @@ * * Single object library component (body only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/base/ftbase.h b/src/base/ftbase.h index 25afa9bc3..963ff93d6 100644 --- a/src/base/ftbase.h +++ b/src/base/ftbase.h @@ -4,7 +4,7 @@ * * Private functions used in the `base' module (specification). * - * Copyright (C) 2008-2020 by + * Copyright (C) 2008-2021 by * David Turner, Robert Wilhelm, Werner Lemberg, and suzuki toshiya. * * This file is part of the FreeType project, and may only be used, diff --git a/src/base/ftbbox.c b/src/base/ftbbox.c index 30a4eba0b..4db29cbf8 100644 --- a/src/base/ftbbox.c +++ b/src/base/ftbbox.c @@ -4,7 +4,7 @@ * * FreeType bbox computation (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used diff --git a/src/base/ftbdf.c b/src/base/ftbdf.c index fc374c667..f93ca8eb7 100644 --- a/src/base/ftbdf.c +++ b/src/base/ftbdf.c @@ -4,7 +4,7 @@ * * FreeType API for accessing BDF-specific strings (body). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/base/ftbitmap.c b/src/base/ftbitmap.c index 584213ddc..2146d3e36 100644 --- a/src/base/ftbitmap.c +++ b/src/base/ftbitmap.c @@ -4,7 +4,7 @@ * * FreeType utility functions for bitmaps (body). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -112,10 +112,10 @@ target_size = (FT_ULong)target_pitch * target->rows; if ( target_size != size ) - (void)FT_QREALLOC( target->buffer, target_size, size ); + FT_MEM_QREALLOC( target->buffer, target_size, size ); } else - (void)FT_QALLOC( target->buffer, size ); + FT_MEM_QALLOC( target->buffer, size ); if ( !error ) { @@ -907,8 +907,8 @@ final_rows = ( final_ury - final_lly ) >> 6; #ifdef FT_DEBUG_LEVEL_TRACE - FT_TRACE5(( "FT_Bitmap_Blend:\n" - " source bitmap: (%ld, %ld) -- (%ld, %ld); %d x %d\n", + FT_TRACE5(( "FT_Bitmap_Blend:\n" )); + FT_TRACE5(( " source bitmap: (%ld, %ld) -- (%ld, %ld); %d x %d\n", source_llx / 64, source_lly / 64, source_urx / 64, source_ury / 64, source_->width, source_->rows )); diff --git a/src/base/ftcalc.c b/src/base/ftcalc.c index b5258c85a..9df8e4010 100644 --- a/src/base/ftcalc.c +++ b/src/base/ftcalc.c @@ -4,7 +4,7 @@ * * Arithmetic computations (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -45,7 +45,7 @@ /* we need to emulate a 64-bit data type if a real one isn't available */ -#ifndef FT_LONG64 +#ifndef FT_INT64 typedef struct FT_Int64_ { @@ -54,7 +54,7 @@ } FT_Int64; -#endif /* !FT_LONG64 */ +#endif /* !FT_INT64 */ /************************************************************************** @@ -79,7 +79,7 @@ FT_END_STMNT /* The following three functions are available regardless of whether */ - /* FT_LONG64 is defined. */ + /* FT_INT64 is defined. */ /* documentation is in freetype.h */ @@ -109,7 +109,7 @@ #ifndef FT_MSB - FT_BASE_DEF ( FT_Int ) + FT_BASE_DEF( FT_Int ) FT_MSB( FT_UInt32 z ) { FT_Int shift = 0; @@ -164,7 +164,7 @@ } -#ifdef FT_LONG64 +#ifdef FT_INT64 /* documentation is in freetype.h */ @@ -272,7 +272,7 @@ } -#else /* !FT_LONG64 */ +#else /* !FT_INT64 */ static void @@ -651,7 +651,7 @@ } -#endif /* !FT_LONG64 */ +#endif /* !FT_INT64 */ /* documentation is in ftglyph.h */ @@ -985,7 +985,7 @@ /* we silently ignore overflow errors since such large values */ /* lead to even more (harmless) rendering errors later on */ -#ifdef FT_LONG64 +#ifdef FT_INT64 FT_Int64 delta = SUB_INT64( MUL_INT64( in_x, out_y ), MUL_INT64( in_y, out_x ) ); diff --git a/src/base/ftcid.c b/src/base/ftcid.c index ce8a876ad..216ee2b3e 100644 --- a/src/base/ftcid.c +++ b/src/base/ftcid.c @@ -4,7 +4,7 @@ * * FreeType API for accessing CID font information. * - * Copyright (C) 2007-2020 by + * Copyright (C) 2007-2021 by * Derek Clegg and Michael Toftdal. * * This file is part of the FreeType project, and may only be used, diff --git a/src/base/ftcolor.c b/src/base/ftcolor.c index a50d68009..3ef3256b2 100644 --- a/src/base/ftcolor.c +++ b/src/base/ftcolor.c @@ -4,7 +4,7 @@ * * FreeType's glyph color management (body). * - * Copyright (C) 2018-2020 by + * Copyright (C) 2018-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/base/ftdbgmem.c b/src/base/ftdbgmem.c index eb0d65160..4f5c1e769 100644 --- a/src/base/ftdbgmem.c +++ b/src/base/ftdbgmem.c @@ -4,7 +4,7 @@ * * Memory debugger (body). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -302,46 +302,6 @@ } - static FT_MemTable - ft_mem_table_new( FT_Memory memory ) - { - FT_MemTable table; - - - table = (FT_MemTable)memory->alloc( memory, sizeof ( *table ) ); - if ( !table ) - goto Exit; - - FT_ZERO( table ); - - table->size = FT_MEM_SIZE_MIN; - table->nodes = 0; - - table->memory = memory; - - table->memory_user = memory->user; - - table->alloc = memory->alloc; - table->realloc = memory->realloc; - table->free = memory->free; - - table->buckets = (FT_MemNode *) - memory->alloc( - memory, - table->size * (FT_Long)sizeof ( FT_MemNode ) ); - if ( table->buckets ) - FT_ARRAY_ZERO( table->buckets, table->size ); - else - { - memory->free( memory, table ); - table = NULL; - } - - Exit: - return table; - } - - static void ft_mem_table_destroy( FT_MemTable table ) { @@ -350,8 +310,6 @@ FT_Long leaks = 0; - FT_DumpMemory( table->memory ); - /* remove all blocks from the table, revealing leaked ones */ for ( i = 0; i < table->size; i++ ) { @@ -413,8 +371,6 @@ printf( "FreeType: maximum memory footprint = %ld\n", table->alloc_max ); - ft_mem_table_free( table, table ); - if ( leak_count > 0 ) ft_mem_debug_panic( "FreeType: %ld bytes of memory leaked in %ld blocks\n", @@ -821,17 +777,30 @@ } - extern FT_Int + extern void ft_mem_debug_init( FT_Memory memory ) { FT_MemTable table; - FT_Int result = 0; - if ( ft_getenv( "FT2_DEBUG_MEMORY" ) ) + if ( !ft_getenv( "FT2_DEBUG_MEMORY" ) ) + return; + + table = (FT_MemTable)memory->alloc( memory, sizeof ( *table ) ); + + if ( table ) { - table = ft_mem_table_new( memory ); - if ( table ) + FT_ZERO( table ); + + table->memory = memory; + table->memory_user = memory->user; + table->alloc = memory->alloc; + table->realloc = memory->realloc; + table->free = memory->free; + + ft_mem_table_resize( table ); + + if ( table->size ) { const char* p; @@ -876,28 +845,31 @@ if ( keep_alive > 0 ) table->keep_alive = 1; } - - result = 1; } + else + memory->free( memory, table ); } - return result; } extern void ft_mem_debug_done( FT_Memory memory ) { - FT_MemTable table = (FT_MemTable)memory->user; + if ( memory->free == ft_mem_debug_free ) + { + FT_MemTable table = (FT_MemTable)memory->user; - if ( table ) - { + FT_DumpMemory( memory ); + + ft_mem_table_destroy( table ); + memory->free = table->free; memory->realloc = table->realloc; memory->alloc = table->alloc; + memory->user = table->memory_user; - ft_mem_table_destroy( table ); - memory->user = NULL; + memory->free( memory, table ); } } @@ -922,11 +894,9 @@ extern void FT_DumpMemory( FT_Memory memory ) { - FT_MemTable table = (FT_MemTable)memory->user; - - - if ( table ) + if ( memory->free == ft_mem_debug_free ) { + FT_MemTable table = (FT_MemTable)memory->user; FT_MemSource* bucket = table->sources; FT_MemSource* limit = bucket + FT_MEM_SOURCE_BUCKETS; FT_MemSource* sources; diff --git a/src/base/ftdebug.c b/src/base/ftdebug.c index 62cf680b0..348579130 100644 --- a/src/base/ftdebug.c +++ b/src/base/ftdebug.c @@ -4,7 +4,7 @@ * * Debugging and logging component (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -42,7 +42,53 @@ #include <freetype/freetype.h> +#include <freetype/ftlogging.h> #include <freetype/internal/ftdebug.h> +#include <freetype/internal/ftobjs.h> + + +#ifdef FT_DEBUG_LOGGING + + /************************************************************************** + * + * Variables used to control logging. + * + * 1. `ft_default_trace_level` stores the value of trace levels, which are + * provided to FreeType using the `FT2_DEBUG` environment variable. + * + * 2. `ft_fileptr` stores the `FILE*` handle. + * + * 3. `ft_component` is a string that holds the name of `FT_COMPONENT`. + * + * 4. The flag `ft_component_flag` prints the name of `FT_COMPONENT` along + * with the actual log message if set to true. + * + * 5. The flag `ft_timestamp_flag` prints time along with the actual log + * message if set to ture. + * + * 6. `ft_have_newline_char` is used to differentiate between a log + * message with and without a trailing newline character. + * + * 7. `ft_custom_trace_level` stores the custom trace level value, which + * is provided by the user at run-time. + * + * We use `static` to avoid 'unused variable' warnings. + * + */ + static const char* ft_default_trace_level = NULL; + static FILE* ft_fileptr = NULL; + static const char* ft_component = NULL; + static FT_Bool ft_component_flag = FALSE; + static FT_Bool ft_timestamp_flag = FALSE; + static FT_Bool ft_have_newline_char = TRUE; + static const char* ft_custom_trace_level = NULL; + + /* declared in ftdebug.h */ + + dlg_handler ft_default_log_handler = NULL; + FT_Custom_Log_Handler custom_output_handler = NULL; + +#endif /* FT_DEBUG_LOGGING */ #ifdef FT_DEBUG_LEVEL_ERROR @@ -106,7 +152,6 @@ #endif /* FT_DEBUG_LEVEL_ERROR */ - #ifdef FT_DEBUG_LEVEL_TRACE /* array of trace levels, initialized to 0; */ @@ -195,8 +240,17 @@ FT_BASE_DEF( void ) ft_debug_init( void ) { - const char* ft2_debug = ft_getenv( "FT2_DEBUG" ); + const char* ft2_debug = NULL; + +#ifdef FT_DEBUG_LOGGING + if ( ft_custom_trace_level != NULL ) + ft2_debug = ft_custom_trace_level; + else + ft2_debug = ft_default_trace_level; +#else + ft2_debug = ft_getenv( "FT2_DEBUG" ); +#endif if ( ft2_debug ) { @@ -210,6 +264,49 @@ if ( *p == ' ' || *p == '\t' || *p == ',' || *p == ';' || *p == '=' ) continue; +#ifdef FT_DEBUG_LOGGING + + /* check extra arguments for logging */ + if ( *p == '-' ) + { + const char* r = ++p; + + + if ( *r == 'v' ) + { + const char* s = ++r; + + + ft_component_flag = TRUE; + + if ( *s == 't' ) + { + ft_timestamp_flag = TRUE; + p++; + } + + p++; + } + + else if ( *r == 't' ) + { + const char* s = ++r; + + + ft_timestamp_flag = TRUE; + + if ( *s == 'v' ) + { + ft_component_flag = TRUE; + p++; + } + + p++; + } + } + +#endif /* FT_DEBUG_LOGGING */ + /* read toggle name, followed by ':' */ q = p; while ( *p && *p != ':' ) @@ -311,8 +408,237 @@ /* nothing */ } - #endif /* !FT_DEBUG_LEVEL_TRACE */ +#ifdef FT_DEBUG_LOGGING + + /************************************************************************** + * + * Initialize and de-initialize 'dlg' library. + * + */ + + FT_BASE_DEF( void ) + ft_logging_init( void ) + { + ft_default_log_handler = ft_log_handler; + ft_default_trace_level = ft_getenv( "FT2_DEBUG" ); + + if ( ft_getenv( "FT_LOGGING_FILE" ) ) + ft_fileptr = ft_fopen( ft_getenv( "FT_LOGGING_FILE" ), "w" ); + else + ft_fileptr = stderr; + + ft_debug_init(); + + /* Set the default output handler for 'dlg'. */ + dlg_set_handler( ft_default_log_handler, NULL ); + } + + + FT_BASE_DEF( void ) + ft_logging_deinit( void ) + { + if ( ft_fileptr != stderr ) + ft_fclose( ft_fileptr ); + } + + + /************************************************************************** + * + * An output log handler for FreeType. + * + */ + FT_BASE_DEF( void ) + ft_log_handler( const struct dlg_origin* origin, + const char* string, + void* data ) + { + char features_buf[128]; + char* bufp = features_buf; + + FT_UNUSED( data ); + + + if ( ft_have_newline_char ) + { + const char* features = NULL; + size_t features_length = 0; + + +#define FEATURES_TIMESTAMP "[%h:%m] " +#define FEATURES_COMPONENT "[%t] " +#define FEATURES_TIMESTAMP_COMPONENT "[%h:%m %t] " + + if ( ft_timestamp_flag && ft_component_flag ) + { + features = FEATURES_TIMESTAMP_COMPONENT; + features_length = sizeof ( FEATURES_TIMESTAMP_COMPONENT ); + } + else if ( ft_timestamp_flag ) + { + features = FEATURES_TIMESTAMP; + features_length = sizeof ( FEATURES_TIMESTAMP ); + } + else if ( ft_component_flag ) + { + features = FEATURES_COMPONENT; + features_length = sizeof ( FEATURES_COMPONENT ); + } + + if ( ft_component_flag || ft_timestamp_flag ) + { + ft_strncpy( features_buf, features, features_length ); + bufp += features_length - 1; + } + + if ( ft_component_flag ) + { + size_t tag_length = ft_strlen( *origin->tags ); + size_t i; + + + /* To vertically align tracing messages we compensate the */ + /* different FT_COMPONENT string lengths by inserting an */ + /* appropriate amount of space characters. */ + for ( i = 0; + i < FT_MAX_TRACE_LEVEL_LENGTH - tag_length; + i++ ) + *bufp++ = ' '; + } + } + + /* Finally add the format string for the tracing message. */ + *bufp++ = '%'; + *bufp++ = 'c'; + *bufp = '\0'; + + dlg_generic_outputf_stream( ft_fileptr, + (const char*)features_buf, + origin, + string, + dlg_default_output_styles, + true ); + + if ( ft_strrchr( string, '\n' ) ) + ft_have_newline_char = TRUE; + else + ft_have_newline_char = FALSE; + } + + + /* documentation is in ftdebug.h */ + FT_BASE_DEF( void ) + ft_add_tag( const char* tag ) + { + ft_component = tag; + + dlg_add_tag( tag, NULL ); + } + + + /* documentation is in ftdebug.h */ + FT_BASE_DEF( void ) + ft_remove_tag( const char* tag ) + { + dlg_remove_tag( tag, NULL ); + } + + + /* documentation is in ftlogging.h */ + + FT_EXPORT_DEF( void ) + FT_Trace_Set_Level( const char* level ) + { + ft_component_flag = FALSE; + ft_timestamp_flag = FALSE; + ft_custom_trace_level = level; + + ft_debug_init(); + } + + + /* documentation is in ftlogging.h */ + + FT_EXPORT_DEF( void ) + FT_Trace_Set_Default_Level( void ) + { + ft_component_flag = FALSE; + ft_timestamp_flag = FALSE; + ft_custom_trace_level = NULL; + + ft_debug_init(); + } + + + /************************************************************************** + * + * Functions to handle a custom log handler. + * + */ + + /* documentation is in ftlogging.h */ + + FT_EXPORT_DEF( void ) + FT_Set_Log_Handler( FT_Custom_Log_Handler handler ) + { + custom_output_handler = handler; + } + + + /* documentation is in ftlogging.h */ + + FT_EXPORT_DEF( void ) + FT_Set_Default_Log_Handler( void ) + { + custom_output_handler = NULL; + } + + + /* documentation is in ftdebug.h */ + FT_BASE_DEF( void ) + FT_Logging_Callback( const char* fmt, + ... ) + { + va_list ap; + + + va_start( ap, fmt ); + custom_output_handler( ft_component, fmt, ap ); + va_end( ap ); + } + +#else /* !FT_DEBUG_LOGGING */ + + FT_EXPORT_DEF( void ) + FT_Trace_Set_Level( const char* level ) + { + FT_UNUSED( level ); + } + + + FT_EXPORT_DEF( void ) + FT_Trace_Set_Default_Level( void ) + { + /* nothing */ + } + + + FT_EXPORT_DEF( void ) + FT_Set_Log_Handler( FT_Custom_Log_Handler handler ) + { + FT_UNUSED( handler ); + } + + + FT_EXPORT_DEF( void ) + FT_Set_Default_Log_Handler( void ) + { + /* nothing */ + } + +#endif /* !FT_DEBUG_LOGGING */ + + /* END */ diff --git a/src/base/fterrors.c b/src/base/fterrors.c index eba9e7656..14649268f 100644 --- a/src/base/fterrors.c +++ b/src/base/fterrors.c @@ -4,7 +4,7 @@ * * FreeType API for error code handling. * - * Copyright (C) 2018-2020 by + * Copyright (C) 2018-2021 by * Armin Hasitzka, David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/base/ftfntfmt.c b/src/base/ftfntfmt.c index a45317e79..4e1b83019 100644 --- a/src/base/ftfntfmt.c +++ b/src/base/ftfntfmt.c @@ -4,7 +4,7 @@ * * FreeType utility file for font formats (body). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/base/ftfstype.c b/src/base/ftfstype.c index bca548fc5..57e904d6f 100644 --- a/src/base/ftfstype.c +++ b/src/base/ftfstype.c @@ -4,7 +4,7 @@ * * FreeType utility file to access FSType data (body). * - * Copyright (C) 2008-2020 by + * Copyright (C) 2008-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/base/ftgasp.c b/src/base/ftgasp.c index eed05a326..b744f0a46 100644 --- a/src/base/ftgasp.c +++ b/src/base/ftgasp.c @@ -4,7 +4,7 @@ * * Access of TrueType's `gasp' table (body). * - * Copyright (C) 2007-2020 by + * Copyright (C) 2007-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/base/ftgloadr.c b/src/base/ftgloadr.c index 05fc7692b..83ce0660a 100644 --- a/src/base/ftgloadr.c +++ b/src/base/ftgloadr.c @@ -4,7 +4,7 @@ * * The FreeType glyph loader (body). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg * * This file is part of the FreeType project, and may only be used, diff --git a/src/base/ftglyph.c b/src/base/ftglyph.c index 825eba2c4..e2c6f73f8 100644 --- a/src/base/ftglyph.c +++ b/src/base/ftglyph.c @@ -4,7 +4,7 @@ * * FreeType convenience functions to handle glyphs (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -453,9 +453,9 @@ /* documentation is in ftglyph.h */ FT_EXPORT_DEF( FT_Error ) - FT_Glyph_Transform( FT_Glyph glyph, - FT_Matrix* matrix, - FT_Vector* delta ) + FT_Glyph_Transform( FT_Glyph glyph, + const FT_Matrix* matrix, + const FT_Vector* delta ) { FT_Error error = FT_Err_Ok; @@ -533,10 +533,10 @@ /* documentation is in ftglyph.h */ FT_EXPORT_DEF( FT_Error ) - FT_Glyph_To_Bitmap( FT_Glyph* the_glyph, - FT_Render_Mode render_mode, - FT_Vector* origin, - FT_Bool destroy ) + FT_Glyph_To_Bitmap( FT_Glyph* the_glyph, + FT_Render_Mode render_mode, + const FT_Vector* origin, + FT_Bool destroy ) { FT_GlyphSlotRec dummy; FT_GlyphSlot_InternalRec dummy_internal; @@ -585,7 +585,7 @@ #if 1 /* if `origin' is set, translate the glyph image */ if ( origin ) - FT_Glyph_Transform( glyph, 0, origin ); + FT_Glyph_Transform( glyph, NULL, origin ); #else FT_UNUSED( origin ); #endif @@ -603,7 +603,7 @@ v.x = -origin->x; v.y = -origin->y; - FT_Glyph_Transform( glyph, 0, &v ); + FT_Glyph_Transform( glyph, NULL, &v ); } #endif diff --git a/src/base/ftgxval.c b/src/base/ftgxval.c index f04df1452..e9567f77f 100644 --- a/src/base/ftgxval.c +++ b/src/base/ftgxval.c @@ -4,7 +4,7 @@ * * FreeType API for validating TrueTypeGX/AAT tables (body). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * Masatake YAMATO, Redhat K.K, * David Turner, Robert Wilhelm, and Werner Lemberg. * diff --git a/src/base/ftinit.c b/src/base/ftinit.c index 0acc75e46..a2d2b933c 100644 --- a/src/base/ftinit.c +++ b/src/base/ftinit.c @@ -4,7 +4,7 @@ * * FreeType initialization layer (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -202,6 +202,10 @@ FT_Memory memory; +#ifdef FT_DEBUG_LOGGING + ft_logging_init(); +#endif + /* check of `alibrary' delayed to `FT_New_Library' */ /* First of all, allocate a new system object -- this function is part */ @@ -248,6 +252,10 @@ /* discard memory manager */ FT_Done_Memory( memory ); +#ifdef FT_DEBUG_LOGGING + ft_logging_deinit(); +#endif + return FT_Err_Ok; } diff --git a/src/base/ftlcdfil.c b/src/base/ftlcdfil.c index 1e84dbc89..488b913e6 100644 --- a/src/base/ftlcdfil.c +++ b/src/base/ftlcdfil.c @@ -4,7 +4,7 @@ * * FreeType API for color filtering of subpixel bitmap glyphs (body). * - * Copyright (C) 2006-2020 by + * Copyright (C) 2006-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -32,7 +32,7 @@ /* add padding according to filter weights */ - FT_BASE_DEF (void) + FT_BASE_DEF( void ) ft_lcd_padding( FT_BBox* cbox, FT_GlyphSlot slot, FT_Render_Mode mode ) @@ -357,7 +357,7 @@ FT_EXPORT_DEF( FT_Error ) FT_Library_SetLcdGeometry( FT_Library library, - FT_Vector* sub ) + FT_Vector sub[3] ) { FT_UNUSED( library ); FT_UNUSED( sub ); @@ -368,7 +368,7 @@ #else /* !FT_CONFIG_OPTION_SUBPIXEL_RENDERING */ /* add padding to accommodate outline shifts */ - FT_BASE_DEF (void) + FT_BASE_DEF( void ) ft_lcd_padding( FT_BBox* cbox, FT_GlyphSlot slot, FT_Render_Mode mode ) @@ -428,7 +428,7 @@ ft_memcpy( library->lcd_geometry, sub, 3 * sizeof( FT_Vector ) ); - return FT_THROW( Unimplemented_Feature ); + return FT_Err_Ok; } #endif /* !FT_CONFIG_OPTION_SUBPIXEL_RENDERING */ diff --git a/src/base/ftmac.c b/src/base/ftmac.c index 55a631fd7..36a860979 100644 --- a/src/base/ftmac.c +++ b/src/base/ftmac.c @@ -8,7 +8,7 @@ * This file is for Mac OS X only; see builds/mac/ftoldmac.c for * classic platforms built by MPW. * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * Just van Rossum, David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -560,7 +560,7 @@ if ( lwfn_file_name[0] ) { err = lookup_lwfn_by_fond( pathname, lwfn_file_name, - buff, sizeof ( buff ) ); + buff, sizeof ( buff ) ); if ( !err ) have_lwfn = 1; } @@ -631,7 +631,7 @@ old_total_size = total_size; } - if ( FT_ALLOC( buffer, (FT_Long)total_size ) ) + if ( FT_QALLOC( buffer, (FT_Long)total_size ) ) goto Error; /* Second pass: append all POST data to the buffer, add PFB fields. */ @@ -752,7 +752,7 @@ if ( FT_MAC_RFORK_MAX_LEN < sfnt_size ) return FT_THROW( Array_Too_Large ); - if ( FT_ALLOC( sfnt_data, (FT_Long)sfnt_size ) ) + if ( FT_QALLOC( sfnt_data, (FT_Long)sfnt_size ) ) { ReleaseResource( sfnt ); return error; diff --git a/src/base/ftmm.c b/src/base/ftmm.c index 9a702b993..fc5d4ecc8 100644 --- a/src/base/ftmm.c +++ b/src/base/ftmm.c @@ -4,7 +4,7 @@ * * Multiple Master font support (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/base/ftobjs.c b/src/base/ftobjs.c index c060bbbc8..883f1a897 100644 --- a/src/base/ftobjs.c +++ b/src/base/ftobjs.c @@ -4,7 +4,7 @@ * * The FreeType private base classes (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -78,6 +78,9 @@ #pragma warning( pop ) #endif + /* This array must stay in sync with the @FT_Pixel_Mode enumeration */ + /* (in file `ftimage.h`). */ + static const char* const pixel_modes[] = { "none", @@ -87,7 +90,8 @@ "gray 4-bit bitmap", "LCD 8-bit bitmap", "vertical LCD 8-bit bitmap", - "BGRA 32-bit color image bitmap" + "BGRA 32-bit color image bitmap", + "SDF 8-bit bitmap" }; #endif /* FT_DEBUG_LEVEL_TRACE */ @@ -193,6 +197,7 @@ FT_Error error; FT_Memory memory; FT_Stream stream = NULL; + FT_UInt mode; *astream = NULL; @@ -204,49 +209,56 @@ return FT_THROW( Invalid_Argument ); memory = library->memory; + mode = args->flags & + ( FT_OPEN_MEMORY | FT_OPEN_STREAM | FT_OPEN_PATHNAME ); - if ( FT_NEW( stream ) ) - goto Exit; - - stream->memory = memory; - - if ( args->flags & FT_OPEN_MEMORY ) + if ( mode == FT_OPEN_MEMORY ) { /* create a memory-based stream */ + if ( FT_NEW( stream ) ) + goto Exit; + FT_Stream_OpenMemory( stream, (const FT_Byte*)args->memory_base, (FT_ULong)args->memory_size ); + stream->memory = memory; } #ifndef FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT - else if ( args->flags & FT_OPEN_PATHNAME ) + else if ( mode == FT_OPEN_PATHNAME ) { /* create a normal system stream */ + if ( FT_NEW( stream ) ) + goto Exit; + + stream->memory = memory; error = FT_Stream_Open( stream, args->pathname ); - stream->pathname.pointer = args->pathname; + if ( error ) + FT_FREE( stream ); } - else if ( ( args->flags & FT_OPEN_STREAM ) && args->stream ) + else if ( ( mode == FT_OPEN_STREAM ) && args->stream ) { /* use an existing, user-provided stream */ /* in this case, we do not need to allocate a new stream object */ /* since the caller is responsible for closing it himself */ - FT_FREE( stream ); - stream = args->stream; + stream = args->stream; + stream->memory = memory; + error = FT_Err_Ok; } #endif else + { error = FT_THROW( Invalid_Argument ); + if ( ( args->flags & FT_OPEN_STREAM ) && args->stream ) + FT_Stream_Close( args->stream ); + } - if ( error ) - FT_FREE( stream ); - else - stream->memory = memory; /* just to be certain */ - - *astream = stream; + if ( !error ) + *astream = stream; Exit: return error; @@ -523,7 +535,7 @@ else slot->internal->flags |= FT_GLYPH_OWN_BITMAP; - (void)FT_ALLOC( slot->bitmap.buffer, size ); + FT_MEM_ALLOC( slot->bitmap.buffer, size ); return error; } @@ -535,6 +547,8 @@ ft_glyphslot_free_bitmap( slot ); /* clear all public fields in the glyph slot */ + slot->glyph_index = 0; + FT_ZERO( &slot->metrics ); FT_ZERO( &slot->outline ); @@ -555,6 +569,8 @@ slot->linearHoriAdvance = 0; slot->linearVertAdvance = 0; + slot->advance.x = 0; + slot->advance.y = 0; slot->lsb_delta = 0; slot->rsb_delta = 0; } @@ -734,6 +750,29 @@ } + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( void ) + FT_Get_Transform( FT_Face face, + FT_Matrix* matrix, + FT_Vector* delta ) + { + FT_Face_Internal internal; + + + if ( !face ) + return; + + internal = face->internal; + + if ( matrix ) + *matrix = internal->transform_matrix; + + if ( delta ) + *delta = internal->transform_delta; + } + + static FT_Renderer ft_lookup_glyph_renderer( FT_GlyphSlot slot ); @@ -1056,19 +1095,24 @@ #ifdef FT_DEBUG_LEVEL_TRACE FT_TRACE5(( "FT_Load_Glyph: index %d, flags 0x%x\n", glyph_index, load_flags )); + FT_TRACE5(( " bitmap %dx%d %s, %s (mode %d)\n", + slot->bitmap.width, + slot->bitmap.rows, + slot->outline.points ? + slot->bitmap.buffer ? "rendered" + : "preset" + : + slot->internal->flags & FT_GLYPH_OWN_BITMAP ? "owned" + : "unowned", + pixel_modes[slot->bitmap.pixel_mode], + slot->bitmap.pixel_mode )); + FT_TRACE5(( "\n" )); FT_TRACE5(( " x advance: %f\n", slot->advance.x / 64.0 )); FT_TRACE5(( " y advance: %f\n", slot->advance.y / 64.0 )); FT_TRACE5(( " linear x advance: %f\n", slot->linearHoriAdvance / 65536.0 )); FT_TRACE5(( " linear y advance: %f\n", slot->linearVertAdvance / 65536.0 )); - FT_TRACE5(( "\n" )); - FT_TRACE5(( " bitmap %dx%d, %s (mode %d)\n", - slot->bitmap.width, - slot->bitmap.rows, - pixel_modes[slot->bitmap.pixel_mode], - slot->bitmap.pixel_mode )); - FT_TRACE5(( "\n" )); { FT_Glyph_Metrics* metrics = &slot->metrics; @@ -1782,7 +1826,7 @@ if ( error ) goto Exit; - if ( FT_ALLOC( sfnt_ps, (FT_Long)length ) ) + if ( FT_QALLOC( sfnt_ps, (FT_Long)length ) ) goto Exit; error = FT_Stream_Read( stream, (FT_Byte *)sfnt_ps, length ); @@ -1892,7 +1936,7 @@ goto Exit; } - if ( FT_ALLOC( pfb_data, (FT_Long)pfb_len + 2 ) ) + if ( FT_QALLOC( pfb_data, (FT_Long)pfb_len + 2 ) ) goto Exit; pfb_data[0] = 0x80; @@ -1956,7 +2000,7 @@ { FT_TRACE3(( " Write POST fragment #%d header (4-byte) to buffer" " %p + 0x%08lx\n", - i, pfb_data, pfb_lenpos )); + i, (void*)pfb_data, pfb_lenpos )); if ( pfb_lenpos + 3 > pfb_len + 2 ) goto Exit2; @@ -1971,7 +2015,7 @@ FT_TRACE3(( " Write POST fragment #%d header (6-byte) to buffer" " %p + 0x%08lx\n", - i, pfb_data, pfb_pos )); + i, (void*)pfb_data, pfb_pos )); if ( pfb_pos + 6 > pfb_len + 2 ) goto Exit2; @@ -1994,7 +2038,7 @@ FT_TRACE3(( " Load POST fragment #%d (%ld byte) to buffer" " %p + 0x%08lx\n", - i, rlen, pfb_data, pfb_pos )); + i, rlen, (void*)pfb_data, pfb_pos )); error = FT_Stream_Read( stream, (FT_Byte *)pfb_data + pfb_pos, rlen ); if ( error ) @@ -2092,7 +2136,7 @@ if ( error ) goto Exit; - if ( FT_ALLOC( sfnt_data, rlen ) ) + if ( FT_QALLOC( sfnt_data, rlen ) ) return error; error = FT_Stream_Read( stream, (FT_Byte *)sfnt_data, (FT_ULong)rlen ); if ( error ) { @@ -2566,7 +2610,7 @@ FT_TRACE4(( "FT_Open_Face: New face object, adding to list\n" )); /* add the face object to its driver's list */ - if ( FT_NEW( node ) ) + if ( FT_QNEW( node ) ) goto Fail; node->data = face; @@ -2681,10 +2725,10 @@ #ifdef FT_DEBUG_LEVEL_TRACE if ( !error && face_index < 0 ) { - FT_TRACE3(( "FT_Open_Face: The font has %ld face%s\n" - " and %ld named instance%s for face %ld\n", + FT_TRACE3(( "FT_Open_Face: The font has %ld face%s\n", face->num_faces, - face->num_faces == 1 ? "" : "s", + face->num_faces == 1 ? "" : "s" )); + FT_TRACE3(( " and %ld named instance%s for face %ld\n", face->style_flags >> 16, ( face->style_flags >> 16 ) == 1 ? "" : "s", -face_index - 1 )); @@ -2851,7 +2895,7 @@ memory = face->memory; /* Allocate new size object and perform basic initialisation */ - if ( FT_ALLOC( size, clazz->size_object_size ) || FT_NEW( node ) ) + if ( FT_ALLOC( size, clazz->size_object_size ) || FT_QNEW( node ) ) goto Exit; size->face = face; @@ -3088,10 +3132,12 @@ } - FT_BASE_DEF( void ) + FT_BASE_DEF( FT_Error ) FT_Request_Metrics( FT_Face face, FT_Size_Request req ) { + FT_Error error = FT_Err_Ok; + FT_Size_Metrics* metrics; @@ -3182,8 +3228,18 @@ scaled_h = FT_MulFix( face->units_per_EM, metrics->y_scale ); } - metrics->x_ppem = (FT_UShort)( ( scaled_w + 32 ) >> 6 ); - metrics->y_ppem = (FT_UShort)( ( scaled_h + 32 ) >> 6 ); + scaled_w = ( scaled_w + 32 ) >> 6; + scaled_h = ( scaled_h + 32 ) >> 6; + if ( scaled_w > (FT_Long)FT_USHORT_MAX || + scaled_h > (FT_Long)FT_USHORT_MAX ) + { + FT_ERROR(( "FT_Request_Metrics: Resulting ppem size too large\n" )); + error = FT_ERR( Invalid_Pixel_Size ); + goto Exit; + } + + metrics->x_ppem = (FT_UShort)scaled_w; + metrics->y_ppem = (FT_UShort)scaled_h; ft_recompute_scaled_metrics( face, metrics ); } @@ -3193,6 +3249,9 @@ metrics->x_scale = 1L << 16; metrics->y_scale = 1L << 16; } + + Exit: + return error; } @@ -3256,7 +3315,7 @@ FT_Request_Size( FT_Face face, FT_Size_Request req ) { - FT_Error error = FT_Err_Ok; + FT_Error error; FT_Driver_Class clazz; FT_ULong strike_index; @@ -3292,13 +3351,15 @@ */ error = FT_Match_Size( face, req, 0, &strike_index ); if ( error ) - return error; + goto Exit; return FT_Select_Size( face, (FT_Int)strike_index ); } else { - FT_Request_Metrics( face, req ); + error = FT_Request_Metrics( face, req ); + if ( error ) + goto Exit; FT_TRACE5(( "FT_Request_Size:\n" )); } @@ -3321,6 +3382,7 @@ } #endif + Exit: return error; } @@ -3645,9 +3707,9 @@ FT_CharMap last_charmap = face->charmaps[face->num_charmaps - 1]; - if ( FT_RENEW_ARRAY( face->charmaps, - face->num_charmaps, - face->num_charmaps - 1 ) ) + if ( FT_QRENEW_ARRAY( face->charmaps, + face->num_charmaps, + face->num_charmaps - 1 ) ) return; /* remove it from our list of charmaps */ @@ -3679,7 +3741,7 @@ FT_CharMap charmap, FT_CMap *acmap ) { - FT_Error error = FT_Err_Ok; + FT_Error error; FT_Face face; FT_Memory memory; FT_CMap cmap = NULL; @@ -3704,9 +3766,9 @@ } /* add it to our list of charmaps */ - if ( FT_RENEW_ARRAY( face->charmaps, - face->num_charmaps, - face->num_charmaps + 1 ) ) + if ( FT_QRENEW_ARRAY( face->charmaps, + face->num_charmaps, + face->num_charmaps + 1 ) ) goto Fail; face->charmaps[face->num_charmaps++] = (FT_CharMap)cmap; @@ -4400,7 +4462,7 @@ FT_ListNode node = NULL; - if ( FT_NEW( node ) ) + if ( FT_QNEW( node ) ) goto Exit; { @@ -4412,8 +4474,7 @@ render->glyph_format = clazz->glyph_format; /* allocate raster object if needed */ - if ( clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE && - clazz->raster_class->raster_new ) + if ( clazz->raster_class->raster_new ) { error = clazz->raster_class->raster_new( memory, &render->raster ); if ( error ) @@ -4460,8 +4521,7 @@ /* release raster object, if any */ - if ( render->clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE && - render->raster ) + if ( render->raster ) render->clazz->raster_class->raster_done( render->raster ); /* remove from list */ @@ -4556,9 +4616,6 @@ switch ( slot->format ) { - case FT_GLYPH_FORMAT_BITMAP: /* already a bitmap, don't do anything */ - break; - default: if ( slot->internal->load_flags & FT_LOAD_COLOR ) { @@ -4646,7 +4703,7 @@ else renderer = FT_Lookup_Renderer( library, slot->format, &node ); - error = FT_ERR( Unimplemented_Feature ); + error = FT_ERR( Cannot_Render_Glyph ); while ( renderer ) { error = renderer->render( renderer, slot, render_mode, NULL ); @@ -4662,6 +4719,11 @@ /* format. */ renderer = FT_Lookup_Renderer( library, slot->format, &node ); } + + /* it is not an error if we cannot render a bitmap glyph */ + if ( FT_ERR_EQ( error, Cannot_Render_Glyph ) && + slot->format == FT_GLYPH_FORMAT_BITMAP ) + error = FT_Err_Ok; } } @@ -4734,11 +4796,11 @@ /* we use FT_TRACE7 in this block */ if ( !error && - ft_trace_levels[trace_checksum] >= 7 ) + ft_trace_levels[trace_checksum] >= 7 && + slot->bitmap.buffer ) { if ( slot->bitmap.rows < 128U && - slot->bitmap.width < 128U && - slot->bitmap.buffer ) + slot->bitmap.width < 128U ) { int rows = (int)slot->bitmap.rows; int width = (int)slot->bitmap.width; @@ -5149,16 +5211,16 @@ if ( cur == limit ) { - FT_ERROR(( "%s: can't find module `%s'\n", - func_name, module_name )); + FT_TRACE2(( "%s: can't find module `%s'\n", + func_name, module_name )); return FT_THROW( Missing_Module ); } /* check whether we have a service interface */ if ( !cur[0]->clazz->get_interface ) { - FT_ERROR(( "%s: module `%s' doesn't support properties\n", - func_name, module_name )); + FT_TRACE2(( "%s: module `%s' doesn't support properties\n", + func_name, module_name )); return FT_THROW( Unimplemented_Feature ); } @@ -5167,8 +5229,8 @@ FT_SERVICE_ID_PROPERTIES ); if ( !interface ) { - FT_ERROR(( "%s: module `%s' doesn't support properties\n", - func_name, module_name )); + FT_TRACE2(( "%s: module `%s' doesn't support properties\n", + func_name, module_name )); return FT_THROW( Unimplemented_Feature ); } @@ -5181,8 +5243,8 @@ if ( missing_func ) { - FT_ERROR(( "%s: property service of module `%s' is broken\n", - func_name, module_name )); + FT_TRACE2(( "%s: property service of module `%s' is broken\n", + func_name, module_name )); return FT_THROW( Unimplemented_Feature ); } @@ -5292,10 +5354,12 @@ if ( !memory || !alibrary ) return FT_THROW( Invalid_Argument ); +#ifndef FT_DEBUG_LOGGING #ifdef FT_DEBUG_LEVEL_ERROR /* init debugging support */ ft_debug_init(); -#endif +#endif /* FT_DEBUG_LEVEL_ERROR */ +#endif /* !FT_DEBUG_LOGGING */ /* first of all, allocate the library object */ if ( FT_NEW( library ) ) @@ -5567,4 +5631,145 @@ } + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Bool ) + FT_Get_Color_Glyph_Paint( FT_Face face, + FT_UInt base_glyph, + FT_Color_Root_Transform root_transform, + FT_OpaquePaint* paint ) + { + TT_Face ttface; + SFNT_Service sfnt; + + + if ( !face || !paint ) + return 0; + + if ( !FT_IS_SFNT( face ) ) + return 0; + + ttface = (TT_Face)face; + sfnt = (SFNT_Service)ttface->sfnt; + + if ( sfnt->get_colr_layer ) + return sfnt->get_colr_glyph_paint( ttface, + base_glyph, + root_transform, + paint ); + else + return 0; + } + + + /* documentation is in ftcolor.h */ + + FT_EXPORT_DEF( FT_Bool ) + FT_Get_Color_Glyph_ClipBox( FT_Face face, + FT_UInt base_glyph, + FT_ClipBox* clip_box ) + { + TT_Face ttface; + SFNT_Service sfnt; + + + if ( !face || !clip_box ) + return 0; + + if ( !FT_IS_SFNT( face ) ) + return 0; + + ttface = (TT_Face)face; + sfnt = (SFNT_Service)ttface->sfnt; + + if ( sfnt->get_color_glyph_clipbox ) + return sfnt->get_color_glyph_clipbox( ttface, + base_glyph, + clip_box ); + else + return 0; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Bool ) + FT_Get_Paint_Layers( FT_Face face, + FT_LayerIterator* layer_iterator, + FT_OpaquePaint* paint ) + { + TT_Face ttface; + SFNT_Service sfnt; + + + if ( !face || !paint || !layer_iterator ) + return 0; + + if ( !FT_IS_SFNT( face ) ) + return 0; + + ttface = (TT_Face)face; + sfnt = (SFNT_Service)ttface->sfnt; + + if ( sfnt->get_paint_layers ) + return sfnt->get_paint_layers( ttface, layer_iterator, paint ); + else + return 0; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Bool ) + FT_Get_Paint( FT_Face face, + FT_OpaquePaint opaque_paint, + FT_COLR_Paint* paint ) + { + TT_Face ttface; + SFNT_Service sfnt; + + + if ( !face || !paint || !paint ) + return 0; + + if ( !FT_IS_SFNT( face ) ) + return 0; + + ttface = (TT_Face)face; + sfnt = (SFNT_Service)ttface->sfnt; + + if ( sfnt->get_paint ) + return sfnt->get_paint( ttface, opaque_paint, paint ); + else + return 0; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Bool ) + FT_Get_Colorline_Stops ( FT_Face face, + FT_ColorStop * color_stop, + FT_ColorStopIterator *iterator ) + { + TT_Face ttface; + SFNT_Service sfnt; + + + if ( !face || !color_stop || !iterator ) + return 0; + + if ( !FT_IS_SFNT( face ) ) + return 0; + + ttface = (TT_Face)face; + sfnt = (SFNT_Service)ttface->sfnt; + + if ( sfnt->get_colorline_stops ) + return sfnt->get_colorline_stops ( ttface, color_stop, iterator ); + else + return 0; + } + + /* END */ diff --git a/src/base/ftotval.c b/src/base/ftotval.c index 90a5dd617..0f748d006 100644 --- a/src/base/ftotval.c +++ b/src/base/ftotval.c @@ -4,7 +4,7 @@ * * FreeType API for validating OpenType tables (body). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/base/ftoutln.c b/src/base/ftoutln.c index 311f098e3..98c6ca16e 100644 --- a/src/base/ftoutln.c +++ b/src/base/ftoutln.c @@ -4,7 +4,7 @@ * * FreeType outline management (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/base/ftpatent.c b/src/base/ftpatent.c index a02c636a6..cd192d33b 100644 --- a/src/base/ftpatent.c +++ b/src/base/ftpatent.c @@ -5,7 +5,7 @@ * FreeType API for checking patented TrueType bytecode instructions * (body). Obsolete, retained for backward compatibility. * - * Copyright (C) 2007-2020 by + * Copyright (C) 2007-2021 by * David Turner. * * This file is part of the FreeType project, and may only be used, diff --git a/src/base/ftpfr.c b/src/base/ftpfr.c index c656fcd9b..5afd5a183 100644 --- a/src/base/ftpfr.c +++ b/src/base/ftpfr.c @@ -4,7 +4,7 @@ * * FreeType API for accessing PFR-specific data (body). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/base/ftpsprop.c b/src/base/ftpsprop.c index 8c29f50f6..3655ae97e 100644 --- a/src/base/ftpsprop.c +++ b/src/base/ftpsprop.c @@ -5,7 +5,7 @@ * Get and set properties of PostScript drivers (body). * See `ftdriver.h' for available properties. * - * Copyright (C) 2017-2020 by + * Copyright (C) 2017-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -220,7 +220,7 @@ return error; } - FT_TRACE0(( "ps_property_set: missing property `%s'\n", + FT_TRACE2(( "ps_property_set: missing property `%s'\n", property_name )); return FT_THROW( Missing_Property ); } @@ -275,7 +275,7 @@ return error; } - FT_TRACE0(( "ps_property_get: missing property `%s'\n", + FT_TRACE2(( "ps_property_get: missing property `%s'\n", property_name )); return FT_THROW( Missing_Property ); } diff --git a/src/base/ftrfork.c b/src/base/ftrfork.c index f989be47f..cb7e94ddb 100644 --- a/src/base/ftrfork.c +++ b/src/base/ftrfork.c @@ -4,7 +4,7 @@ * * Embedded resource forks accessor (body). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * Masatake YAMATO and Redhat K.K. * * FT_Raccess_Get_HeaderInfo() and raccess_guess_darwin_hfsplus() are @@ -167,16 +167,11 @@ } - static int - ft_raccess_sort_ref_by_id( FT_RFork_Ref* a, - FT_RFork_Ref* b ) + FT_COMPARE_DEF( int ) + ft_raccess_sort_ref_by_id( const void* a, + const void* b ) { - if ( a->res_id < b->res_id ) - return -1; - else if ( a->res_id > b->res_id ) - return 1; - else - return 0; + return ( (FT_RFork_Ref*)a )->res_id - ( (FT_RFork_Ref*)b )->res_id; } @@ -256,7 +251,7 @@ if ( error ) return error; - if ( FT_NEW_ARRAY( ref, *count ) ) + if ( FT_QNEW_ARRAY( ref, *count ) ) return error; for ( j = 0; j < *count; j++ ) @@ -294,8 +289,7 @@ ft_qsort( ref, (size_t)*count, sizeof ( FT_RFork_Ref ), - ( int(*)(const void*, - const void*) )ft_raccess_sort_ref_by_id ); + ft_raccess_sort_ref_by_id ); FT_TRACE3(( " -- sort resources by their ids --\n" )); @@ -305,7 +299,7 @@ j, ref[j].res_id, ref[j].offset )); } - if ( FT_NEW_ARRAY( offsets_internal, *count ) ) + if ( FT_QNEW_ARRAY( offsets_internal, *count ) ) goto Exit; /* XXX: duplicated reference ID, @@ -608,7 +602,7 @@ if ( base_file_len + 6 > FT_INT_MAX ) return FT_THROW( Array_Too_Large ); - if ( FT_ALLOC( newpath, base_file_len + 6 ) ) + if ( FT_QALLOC( newpath, base_file_len + 6 ) ) return error; FT_MEM_COPY( newpath, base_file_name, base_file_len ); @@ -644,7 +638,7 @@ if ( base_file_len + 18 > FT_INT_MAX ) return FT_THROW( Array_Too_Large ); - if ( FT_ALLOC( newpath, base_file_len + 18 ) ) + if ( FT_QALLOC( newpath, base_file_len + 18 ) ) return error; FT_MEM_COPY( newpath, base_file_name, base_file_len ); @@ -880,7 +874,7 @@ new_length = ft_strlen( original_name ) + ft_strlen( insertion ); - if ( FT_ALLOC( new_name, new_length + 1 ) ) + if ( FT_QALLOC( new_name, new_length + 1 ) ) return NULL; tmp = ft_strrchr( original_name, '/' ); diff --git a/src/base/ftsnames.c b/src/base/ftsnames.c index 8507f28d3..44dba6663 100644 --- a/src/base/ftsnames.c +++ b/src/base/ftsnames.c @@ -7,7 +7,7 @@ * * This is _not_ used to retrieve glyph names! * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -65,7 +65,7 @@ FT_Stream stream = face->stream; - if ( FT_NEW_ARRAY ( entry->string, entry->stringLength ) || + if ( FT_QNEW_ARRAY ( entry->string, entry->stringLength ) || FT_STREAM_SEEK( entry->stringOffset ) || FT_STREAM_READ( entry->string, entry->stringLength ) ) { @@ -121,7 +121,7 @@ FT_Stream stream = face->stream; - if ( FT_NEW_ARRAY ( entry->string, entry->stringLength ) || + if ( FT_QNEW_ARRAY ( entry->string, entry->stringLength ) || FT_STREAM_SEEK( entry->stringOffset ) || FT_STREAM_READ( entry->string, entry->stringLength ) ) { diff --git a/src/base/ftstream.c b/src/base/ftstream.c index d940254d8..5992998ba 100644 --- a/src/base/ftstream.c +++ b/src/base/ftstream.c @@ -4,7 +4,7 @@ * * I/O stream support (body). * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -61,7 +61,7 @@ if ( stream->read ) { - if ( stream->read( stream, pos, 0, 0 ) ) + if ( stream->read( stream, pos, NULL, 0 ) ) { FT_ERROR(( "FT_Stream_Seek:" " invalid i/o; pos = 0x%lx, size = 0x%lx\n", @@ -347,17 +347,17 @@ } - FT_BASE_DEF( FT_Char ) - FT_Stream_GetChar( FT_Stream stream ) + FT_BASE_DEF( FT_Byte ) + FT_Stream_GetByte( FT_Stream stream ) { - FT_Char result; + FT_Byte result; FT_ASSERT( stream && stream->cursor ); result = 0; if ( stream->cursor < stream->limit ) - result = (FT_Char)*stream->cursor++; + result = *stream->cursor++; return result; } @@ -455,8 +455,8 @@ } - FT_BASE_DEF( FT_Char ) - FT_Stream_ReadChar( FT_Stream stream, + FT_BASE_DEF( FT_Byte ) + FT_Stream_ReadByte( FT_Stream stream, FT_Error* error ) { FT_Byte result = 0; @@ -464,31 +464,32 @@ FT_ASSERT( stream ); - *error = FT_Err_Ok; - - if ( stream->read ) + if ( stream->pos < stream->size ) { - if ( stream->read( stream, stream->pos, &result, 1L ) != 1L ) - goto Fail; - } - else - { - if ( stream->pos < stream->size ) - result = stream->base[stream->pos]; + if ( stream->read ) + { + if ( stream->read( stream, stream->pos, &result, 1L ) != 1L ) + goto Fail; + } else - goto Fail; + result = stream->base[stream->pos]; } + else + goto Fail; + stream->pos++; - return (FT_Char)result; + *error = FT_Err_Ok; + + return result; Fail: *error = FT_THROW( Invalid_Stream_Operation ); - FT_ERROR(( "FT_Stream_ReadChar:" + FT_ERROR(( "FT_Stream_ReadByte:" " invalid i/o; pos = 0x%lx, size = 0x%lx\n", stream->pos, stream->size )); - return 0; + return result; } @@ -497,14 +498,12 @@ FT_Error* error ) { FT_Byte reads[2]; - FT_Byte* p = 0; + FT_Byte* p; FT_UShort result = 0; FT_ASSERT( stream ); - *error = FT_Err_Ok; - if ( stream->pos + 1 < stream->size ) { if ( stream->read ) @@ -525,6 +524,8 @@ stream->pos += 2; + *error = FT_Err_Ok; + return result; Fail: @@ -533,7 +534,7 @@ " invalid i/o; pos = 0x%lx, size = 0x%lx\n", stream->pos, stream->size )); - return 0; + return result; } @@ -542,14 +543,12 @@ FT_Error* error ) { FT_Byte reads[2]; - FT_Byte* p = 0; + FT_Byte* p; FT_UShort result = 0; FT_ASSERT( stream ); - *error = FT_Err_Ok; - if ( stream->pos + 1 < stream->size ) { if ( stream->read ) @@ -570,6 +569,8 @@ stream->pos += 2; + *error = FT_Err_Ok; + return result; Fail: @@ -578,7 +579,7 @@ " invalid i/o; pos = 0x%lx, size = 0x%lx\n", stream->pos, stream->size )); - return 0; + return result; } @@ -587,14 +588,12 @@ FT_Error* error ) { FT_Byte reads[3]; - FT_Byte* p = 0; + FT_Byte* p; FT_ULong result = 0; FT_ASSERT( stream ); - *error = FT_Err_Ok; - if ( stream->pos + 2 < stream->size ) { if ( stream->read ) @@ -615,6 +614,8 @@ stream->pos += 3; + *error = FT_Err_Ok; + return result; Fail: @@ -623,7 +624,7 @@ " invalid i/o; pos = 0x%lx, size = 0x%lx\n", stream->pos, stream->size )); - return 0; + return result; } @@ -632,14 +633,12 @@ FT_Error* error ) { FT_Byte reads[4]; - FT_Byte* p = 0; + FT_Byte* p; FT_ULong result = 0; FT_ASSERT( stream ); - *error = FT_Err_Ok; - if ( stream->pos + 3 < stream->size ) { if ( stream->read ) @@ -660,6 +659,8 @@ stream->pos += 4; + *error = FT_Err_Ok; + return result; Fail: @@ -668,7 +669,7 @@ " invalid i/o; pos = 0x%lx, size = 0x%lx\n", stream->pos, stream->size )); - return 0; + return result; } @@ -677,14 +678,12 @@ FT_Error* error ) { FT_Byte reads[4]; - FT_Byte* p = 0; + FT_Byte* p; FT_ULong result = 0; FT_ASSERT( stream ); - *error = FT_Err_Ok; - if ( stream->pos + 3 < stream->size ) { if ( stream->read ) @@ -705,6 +704,8 @@ stream->pos += 4; + *error = FT_Err_Ok; + return result; Fail: @@ -713,7 +714,7 @@ " invalid i/o; pos = 0x%lx, size = 0x%lx\n", stream->pos, stream->size )); - return 0; + return result; } diff --git a/src/base/ftstroke.c b/src/base/ftstroke.c index 56f98e1d9..37e964941 100644 --- a/src/base/ftstroke.c +++ b/src/base/ftstroke.c @@ -4,7 +4,7 @@ * * FreeType path stroker (body). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -974,7 +974,8 @@ FT_StrokeBorder border = stroker->borders + side; FT_Angle phi, theta, rotate; FT_Fixed length; - FT_Vector sigma, delta; + FT_Vector sigma = { 0, 0 }; + FT_Vector delta; FT_Error error = FT_Err_Ok; FT_Bool intersect; /* use intersection of lines? */ @@ -1048,7 +1049,7 @@ { /* this is a mitered (pointed) or beveled (truncated) corner */ FT_Fixed radius = stroker->radius; - FT_Vector sigma; + FT_Vector sigma = { 0, 0 }; FT_Angle theta = 0, phi = 0; FT_Bool bevel, fixed_bevel; @@ -1528,7 +1529,8 @@ stroker->angle_in = angle_out; } - stroker->center = *to; + stroker->center = *to; + stroker->line_length = 0; Exit: return error; @@ -1744,7 +1746,8 @@ stroker->angle_in = angle_out; } - stroker->center = *to; + stroker->center = *to; + stroker->line_length = 0; Exit: return error; @@ -1897,13 +1900,9 @@ } else { - FT_Angle turn; - FT_Int inside_side; - - /* close the path if needed */ - if ( stroker->center.x != stroker->subpath_start.x || - stroker->center.y != stroker->subpath_start.y ) + if ( !FT_IS_SMALL( stroker->center.x - stroker->subpath_start.x ) || + !FT_IS_SMALL( stroker->center.y - stroker->subpath_start.y ) ) { error = FT_Stroker_LineTo( stroker, &stroker->subpath_start ); if ( error ) @@ -1912,29 +1911,11 @@ /* process the corner */ stroker->angle_out = stroker->subpath_angle; - turn = FT_Angle_Diff( stroker->angle_in, - stroker->angle_out ); - - /* no specific corner processing is required if the turn is 0 */ - if ( turn != 0 ) - { - /* when we turn to the right, the inside side is 0 */ - /* otherwise, the inside side is 1 */ - inside_side = ( turn < 0 ); - error = ft_stroker_inside( stroker, - inside_side, - stroker->subpath_line_length ); - if ( error ) - goto Exit; - - /* process the outside side */ - error = ft_stroker_outside( stroker, - !inside_side, - stroker->subpath_line_length ); - if ( error ) - goto Exit; - } + error = ft_stroker_process_corner( stroker, + stroker->subpath_line_length ); + if ( error ) + goto Exit; /* then end our two subpaths */ ft_stroke_border_close( stroker->borders + 0, FALSE ); diff --git a/src/base/ftsynth.c b/src/base/ftsynth.c index a9119e2b2..73565b130 100644 --- a/src/base/ftsynth.c +++ b/src/base/ftsynth.c @@ -4,7 +4,7 @@ * * FreeType synthesizing code for emboldening and slanting (body). * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/base/ftsystem.c b/src/base/ftsystem.c index 3013cbda9..9beb7e245 100644 --- a/src/base/ftsystem.c +++ b/src/base/ftsystem.c @@ -4,7 +4,7 @@ * * ANSI-specific FreeType low-level system interface (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -275,7 +275,7 @@ stream->close = ft_ansi_stream_close; FT_TRACE1(( "FT_Stream_Open:" )); - FT_TRACE1(( " opened `%s' (%d bytes) successfully\n", + FT_TRACE1(( " opened `%s' (%ld bytes) successfully\n", filepathname, stream->size )); return FT_Err_Ok; diff --git a/src/base/fttrigon.c b/src/base/fttrigon.c index c6f027cf6..0ca6d7810 100644 --- a/src/base/fttrigon.c +++ b/src/base/fttrigon.c @@ -4,7 +4,7 @@ * * FreeType trigonometric functions (body). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -53,7 +53,7 @@ }; -#ifdef FT_LONG64 +#ifdef FT_INT64 /* multiply a given value by the CORDIC shrink factor */ static FT_Fixed @@ -76,7 +76,7 @@ return s < 0 ? -val : val; } -#else /* !FT_LONG64 */ +#else /* !FT_INT64 */ /* multiply a given value by the CORDIC shrink factor */ static FT_Fixed @@ -125,7 +125,7 @@ return s < 0 ? -val : val; } -#endif /* !FT_LONG64 */ +#endif /* !FT_INT64 */ /* undefined and never called for zero vector */ diff --git a/src/base/fttype1.c b/src/base/fttype1.c index be60ed6ec..0d0afbcef 100644 --- a/src/base/fttype1.c +++ b/src/base/fttype1.c @@ -4,7 +4,7 @@ * * FreeType utility file for PS names support (body). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/base/ftutil.c b/src/base/ftutil.c index d90cfbcd2..3142faee9 100644 --- a/src/base/ftutil.c +++ b/src/base/ftutil.c @@ -4,7 +4,7 @@ * * FreeType utility file for memory and list management (body). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/base/ftver.rc b/src/base/ftver.rc index 0b92e9b89..a3d05b378 100644 --- a/src/base/ftver.rc +++ b/src/base/ftver.rc @@ -4,7 +4,7 @@ /* */ /* FreeType VERSIONINFO resource for Windows DLLs. */ /* */ -/* Copyright (C) 2018-2020 by */ +/* Copyright (C) 2018-2021 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -18,8 +18,8 @@ #include<windows.h> -#define FT_VERSION 2,10,4,0 -#define FT_VERSION_STR "2.10.4" +#define FT_VERSION 2,11,1,0 +#define FT_VERSION_STR "2.11.1" VS_VERSION_INFO VERSIONINFO FILEVERSION FT_VERSION @@ -45,7 +45,7 @@ BEGIN VALUE "FileVersion", FT_VERSION_STR VALUE "ProductName", "FreeType" VALUE "ProductVersion", FT_VERSION_STR - VALUE "LegalCopyright", "\251 2000-2020 The FreeType Project www.freetype.org. All rights reserved." + VALUE "LegalCopyright", "\251 2000-2021 The FreeType Project www.freetype.org. All rights reserved." VALUE "InternalName", "freetype" VALUE "OriginalFilename", FT_FILENAME END diff --git a/src/base/ftwinfnt.c b/src/base/ftwinfnt.c index 699dc3d70..98f197afd 100644 --- a/src/base/ftwinfnt.c +++ b/src/base/ftwinfnt.c @@ -4,7 +4,7 @@ * * FreeType API for accessing Windows FNT specific info (body). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/base/rules.mk b/src/base/rules.mk index 411c4c821..53289aee6 100644 --- a/src/base/rules.mk +++ b/src/base/rules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/bdf/bdfdrivr.c b/src/bdf/bdfdrivr.c index d29188b97..eb73a7cf9 100644 --- a/src/bdf/bdfdrivr.c +++ b/src/bdf/bdfdrivr.c @@ -276,7 +276,7 @@ THE SOFTWARE. char* s; - if ( FT_ALLOC( face->style_name, len ) ) + if ( FT_QALLOC( face->style_name, len ) ) return error; s = face->style_name; @@ -442,7 +442,7 @@ THE SOFTWARE. bdfface->num_glyphs = (FT_Long)( font->glyphs_size + 1 ); bdfface->num_fixed_sizes = 1; - if ( FT_NEW_ARRAY( bdfface->available_sizes, 1 ) ) + if ( FT_NEW( bdfface->available_sizes ) ) goto Exit; { @@ -451,8 +451,6 @@ THE SOFTWARE. long value; - FT_ZERO( bsize ); - /* sanity checks */ if ( font->font_ascent > 0x7FFF || font->font_ascent < -0x7FFF ) { @@ -489,7 +487,7 @@ THE SOFTWARE. else { /* this is a heuristical value */ - bsize->width = (FT_Short)FT_MulDiv( bsize->height, 2, 3 ); + bsize->width = ( bsize->height * 2 + 1 ) / 3; } prop = bdf_get_font_property( font, "POINT_SIZE" ); @@ -608,7 +606,7 @@ THE SOFTWARE. unsigned long n; - if ( FT_NEW_ARRAY( face->en_table, font->glyphs_size ) ) + if ( FT_QNEW_ARRAY( face->en_table, font->glyphs_size ) ) goto Exit; face->default_glyph = 0; diff --git a/src/bdf/bdflib.c b/src/bdf/bdflib.c index a4ddb9a1d..b65c8a2f3 100644 --- a/src/bdf/bdflib.c +++ b/src/bdf/bdflib.c @@ -170,7 +170,7 @@ /* An auxiliary macro to parse properties, to be used in conditionals. */ /* It behaves like `strncmp' but also tests the following character */ - /* whether it is a whitespace or NULL. */ + /* whether it is a whitespace or null. */ /* `property' is a constant string of length `n' to compare with. */ #define _bdf_strncmp( name, property, n ) \ ( ft_strncmp( name, property, n ) || \ @@ -185,12 +185,12 @@ "Added `FONT_ASCENT %hd'.\n" #define ACMSG2 "FONT_DESCENT property missing. " \ "Added `FONT_DESCENT %hd'.\n" -#define ACMSG3 "Font width != actual width. Old: %hd New: %hd.\n" +#define ACMSG3 "Font width != actual width. Old: %d New: %d.\n" #define ACMSG4 "Font left bearing != actual left bearing. " \ "Old: %hd New: %hd.\n" #define ACMSG5 "Font ascent != actual ascent. Old: %hd New: %hd.\n" -#define ACMSG6 "Font descent != actual descent. Old: %hd New: %hd.\n" -#define ACMSG7 "Font height != actual height. Old: %hd New: %hd.\n" +#define ACMSG6 "Font descent != actual descent. Old: %d New: %d.\n" +#define ACMSG7 "Font height != actual height. Old: %d New: %d.\n" #define ACMSG8 "Glyph scalable width (SWIDTH) adjustments made.\n" #define ACMSG9 "SWIDTH field missing at line %ld. Set automatically.\n" #define ACMSG10 "DWIDTH field missing at line %ld. Set to glyph width.\n" @@ -328,7 +328,7 @@ else if ( newsize < oldsize || newsize > bigsize ) newsize = bigsize; - if ( FT_RENEW_ARRAY( list->field, oldsize, newsize ) ) + if ( FT_QRENEW_ARRAY( list->field, oldsize, newsize ) ) goto Exit; list->size = newsize; @@ -346,7 +346,7 @@ unsigned long i, u; - if ( list == 0 || list->used == 0 || n == 0 ) + if ( list == NULL || list->used == 0 || n == 0 ) return; if ( n >= list->used ) @@ -377,7 +377,7 @@ *alen = 0; - if ( list == 0 || list->used == 0 ) + if ( list == NULL || list->used == 0 ) return 0; dp = list->field[0]; @@ -436,7 +436,7 @@ /* In the original code, if the `separators' parameter is NULL or */ /* empty, the list is split into individual bytes. We don't need */ /* this, so an error is signaled. */ - if ( separators == 0 || *separators == 0 ) + if ( separators == NULL || *separators == 0 ) { error = FT_THROW( Invalid_Argument ); goto Exit; @@ -504,7 +504,7 @@ if ( final_empty ) list->field[list->used++] = (char*)empty; - list->field[list->used] = 0; + list->field[list->used] = NULL; Exit: return error; @@ -529,7 +529,7 @@ FT_Error error = FT_Err_Ok; - if ( callback == 0 ) + if ( callback == NULL ) { error = FT_THROW( Invalid_Argument ); goto Exit; @@ -538,7 +538,7 @@ /* initial size and allocation of the input buffer */ buf_size = 1024; - if ( FT_NEW_ARRAY( buf, buf_size ) ) + if ( FT_QALLOC( buf, buf_size ) ) goto Exit; cb = callback; @@ -581,8 +581,14 @@ /* or even resizing it */ if ( end >= avail ) { - if ( bytes == 0 ) /* last line in file doesn't end in \r or \n */ - break; /* ignore it then exit */ + if ( bytes == 0 ) + { + /* last line in file doesn't end in \r or \n; */ + /* ignore it then exit */ + if ( lineno == 1 ) + error = FT_THROW( Missing_Startfont_Field ); + break; + } if ( start == 0 ) { @@ -593,13 +599,18 @@ if ( buf_size >= 65536UL ) /* limit ourselves to 64KByte */ { - FT_ERROR(( "_bdf_readstream: " ERRMSG6, lineno )); - error = FT_THROW( Invalid_Argument ); + if ( lineno == 1 ) + error = FT_THROW( Missing_Startfont_Field ); + else + { + FT_ERROR(( "_bdf_readstream: " ERRMSG6, lineno )); + error = FT_THROW( Invalid_Argument ); + } goto Exit; } new_size = buf_size * 2; - if ( FT_RENEW_ARRAY( buf, buf_size, new_size ) ) + if ( FT_QREALLOC( buf, buf_size, new_size ) ) goto Exit; cursor = (ptrdiff_t)buf_size; @@ -697,7 +708,7 @@ unsigned long v; - if ( s == 0 || *s == 0 ) + if ( s == NULL || *s == 0 ) return 0; for ( v = 0; sbitset( ddigits, *s ); s++ ) @@ -722,7 +733,7 @@ long v, neg; - if ( s == 0 || *s == 0 ) + if ( s == NULL || *s == 0 ) return 0; /* Check for a minus sign. */ @@ -755,7 +766,7 @@ unsigned short v; - if ( s == 0 || *s == 0 ) + if ( s == NULL || *s == 0 ) return 0; for ( v = 0; sbitset( ddigits, *s ); s++ ) @@ -780,7 +791,7 @@ short v, neg; - if ( s == 0 || *s == 0 ) + if ( s == NULL || *s == 0 ) return 0; /* Check for a minus. */ @@ -807,7 +818,7 @@ /* Routine to compare two glyphs by encoding so they can be sorted. */ - static int + FT_COMPARE_DEF( int ) by_encoding( const void* a, const void* b ) { @@ -844,25 +855,25 @@ if ( ft_hash_str_lookup( name, &(font->proptbl) ) ) goto Exit; - if ( FT_RENEW_ARRAY( font->user_props, - font->nuser_props, - font->nuser_props + 1 ) ) + if ( FT_QRENEW_ARRAY( font->user_props, + font->nuser_props, + font->nuser_props + 1 ) ) goto Exit; p = font->user_props + font->nuser_props; - FT_ZERO( p ); n = ft_strlen( name ) + 1; - if ( n > FT_ULONG_MAX ) + if ( n > FT_LONG_MAX ) return FT_THROW( Invalid_Argument ); - if ( FT_NEW_ARRAY( p->name, n ) ) + if ( FT_QALLOC( p->name, n ) ) goto Exit; FT_MEM_COPY( (char *)p->name, name, n ); - p->format = format; - p->builtin = 0; + p->format = format; + p->builtin = 0; + p->value.atom = NULL; /* nothing is ever stored here */ n = _num_bdf_properties + font->nuser_props; @@ -884,7 +895,7 @@ size_t* propid; - if ( name == 0 || *name == 0 ) + if ( name == NULL || *name == 0 ) return 0; if ( ( propid = ft_hash_str_lookup( name, &(font->proptbl) ) ) == NULL ) @@ -942,15 +953,15 @@ FT_Error error = FT_Err_Ok; - if ( FT_RENEW_ARRAY( font->comments, - font->comments_len, - font->comments_len + len + 1 ) ) + if ( FT_QRENEW_ARRAY( font->comments, + font->comments_len, + font->comments_len + len + 1 ) ) goto Exit; cp = font->comments + font->comments_len; FT_MEM_COPY( cp, comment, len ); - cp[len] = '\n'; + cp[len] = '\0'; font->comments_len += len + 1; @@ -975,7 +986,7 @@ FT_UNUSED( lineno ); /* only used in debug mode */ - if ( font == 0 || font->name == 0 || font->name[0] == 0 ) + if ( font == NULL || font->name == NULL || font->name[0] == 0 ) { error = FT_THROW( Invalid_Argument ); goto Exit; @@ -1159,21 +1170,12 @@ /* Allocate another property if this is overflowing. */ if ( font->props_used == font->props_size ) { - if ( font->props_size == 0 ) - { - if ( FT_NEW_ARRAY( font->props, 1 ) ) - goto Exit; - } - else - { - if ( FT_RENEW_ARRAY( font->props, - font->props_size, - font->props_size + 1 ) ) - goto Exit; - } + if ( FT_QRENEW_ARRAY( font->props, + font->props_size, + font->props_size + 1 ) ) + goto Exit; fp = font->props + font->props_size; - FT_ZERO( fp ); font->props_size++; } @@ -1191,8 +1193,8 @@ switch ( prop->format ) { case BDF_ATOM: - fp->value.atom = 0; - if ( value != 0 && value[0] ) + fp->value.atom = NULL; + if ( value && value[0] ) { if ( FT_STRDUP( fp->value.atom, value ) ) goto Exit; @@ -1314,15 +1316,18 @@ /* Check for a comment. */ if ( _bdf_strncmp( line, "COMMENT", 7 ) == 0 ) { - linelen -= 7; - - s = line + 7; - if ( *s != 0 ) + if ( p->opts->keep_comments ) { - s++; - linelen--; + linelen -= 7; + + s = line + 7; + if ( *s != 0 ) + { + s++; + linelen--; + } + error = _bdf_add_comment( p->font, s, linelen ); } - error = _bdf_add_comment( p->font, s, linelen ); goto Exit; } @@ -1438,7 +1443,7 @@ goto Exit; } - if ( FT_NEW_ARRAY( p->glyph_name, slen + 1 ) ) + if ( FT_QALLOC( p->glyph_name, slen + 1 ) ) goto Exit; FT_MEM_COPY( p->glyph_name, s, slen + 1 ); @@ -1506,7 +1511,7 @@ { /* Unencoded glyph. Check whether it should */ /* be added or not. */ - if ( p->opts->keep_unencoded != 0 ) + if ( p->opts->keep_unencoded ) { /* Allocate the next unencoded glyph. */ if ( font->unencoded_used == font->unencoded_size ) @@ -1619,20 +1624,20 @@ if ( error ) goto Exit; - glyph->swidth = (unsigned short)_bdf_atoul( p->list.field[1] ); + glyph->swidth = _bdf_atous( p->list.field[1] ); p->flags |= BDF_SWIDTH_; goto Exit; } - /* Expect the DWIDTH (scalable width) field next. */ + /* Expect the DWIDTH (device width) field next. */ if ( _bdf_strncmp( line, "DWIDTH", 6 ) == 0 ) { error = _bdf_list_split( &p->list, " +", line, linelen ); if ( error ) goto Exit; - glyph->dwidth = (unsigned short)_bdf_atoul( p->list.field[1] ); + glyph->dwidth = _bdf_atous( p->list.field[1] ); if ( !( p->flags & BDF_SWIDTH_ ) ) { @@ -1687,7 +1692,7 @@ /* If the BDF_CORRECT_METRICS flag is set, then adjust the SWIDTH */ /* value if necessary. */ - if ( p->opts->correct_metrics != 0 ) + if ( p->opts->correct_metrics ) { /* Determine the point size of the glyph. */ unsigned short sw = (unsigned short)FT_MulDiv( @@ -1735,7 +1740,7 @@ else glyph->bytes = (unsigned short)bitmap_size; - if ( FT_NEW_ARRAY( glyph->bitmap, glyph->bytes ) ) + if ( FT_ALLOC( glyph->bitmap, glyph->bytes ) ) goto Exit; p->row = 0; @@ -1894,7 +1899,7 @@ /* comments before the STARTFONT line for some reason. */ if ( _bdf_strncmp( line, "COMMENT", 7 ) == 0 ) { - if ( p->opts->keep_comments != 0 && p->font != 0 ) + if ( p->opts->keep_comments && p->font ) { linelen -= 7; @@ -1904,13 +1909,8 @@ s++; linelen--; } - error = _bdf_add_comment( p->font, s, linelen ); - if ( error ) - goto Exit; - /* here font is not defined! */ } - goto Exit; } @@ -1927,14 +1927,13 @@ } p->flags = BDF_START_; - font = p->font = 0; + font = p->font = NULL; if ( FT_NEW( font ) ) goto Exit; p->font = font; font->memory = p->memory; - p->memory = 0; { /* setup */ size_t i; @@ -2055,7 +2054,7 @@ /* Allowing multiple `FONT' lines (which is invalid) doesn't hurt... */ FT_FREE( p->font->name ); - if ( FT_NEW_ARRAY( p->font->name, slen + 1 ) ) + if ( FT_QALLOC( p->font->name, slen + 1 ) ) goto Exit; FT_MEM_COPY( p->font->name, s, slen + 1 ); @@ -2095,7 +2094,7 @@ unsigned short bpp; - bpp = (unsigned short)_bdf_atos( p->list.field[4] ); + bpp = _bdf_atous( p->list.field[4] ); /* Only values 1, 2, 4, 8 are allowed for greymap fonts. */ if ( bpp > 4 ) @@ -2174,34 +2173,32 @@ FT_LOCAL_DEF( FT_Error ) bdf_load_font( FT_Stream stream, - FT_Memory extmemory, + FT_Memory memory, bdf_options_t* opts, bdf_font_t* *font ) { unsigned long lineno = 0; /* make compiler happy */ _bdf_parse_t *p = NULL; - FT_Memory memory = extmemory; /* needed for FT_NEW */ - FT_Error error = FT_Err_Ok; + FT_Error error = FT_Err_Ok; if ( FT_NEW( p ) ) goto Exit; - memory = NULL; - p->opts = (bdf_options_t*)( ( opts != 0 ) ? opts : &_bdf_opts ); + p->opts = (bdf_options_t*)( opts ? opts : &_bdf_opts ); p->minlb = 32767; p->size = stream->size; - p->memory = extmemory; /* only during font creation */ + p->memory = memory; /* only during font creation */ - _bdf_list_init( &p->list, extmemory ); + _bdf_list_init( &p->list, memory ); error = _bdf_readstream( stream, _bdf_parse_start, (void *)p, &lineno ); if ( error ) goto Fail; - if ( p->font != 0 ) + if ( p->font ) { /* If the font is not proportional, set the font's monowidth */ /* field to the width of the font bounding box. */ @@ -2282,22 +2279,7 @@ } } - if ( p->font != 0 ) - { - /* Make sure the comments are NULL terminated if they exist. */ - memory = p->font->memory; - - if ( p->font->comments_len > 0 ) - { - if ( FT_RENEW_ARRAY( p->font->comments, - p->font->comments_len, - p->font->comments_len + 1 ) ) - goto Fail; - - p->font->comments[p->font->comments_len] = 0; - } - } - else if ( !error ) + if ( !p->font && !error ) error = FT_THROW( Invalid_File_Format ); *font = p->font; @@ -2307,8 +2289,6 @@ { _bdf_list_done( &p->list ); - memory = extmemory; - FT_FREE( p->glyph_name ); FT_FREE( p ); } @@ -2318,8 +2298,6 @@ Fail: bdf_free_font( p->font ); - memory = extmemory; - FT_FREE( p->font ); goto Exit; @@ -2335,7 +2313,7 @@ FT_Memory memory; - if ( font == 0 ) + if ( font == NULL ) return; memory = font->memory; @@ -2385,11 +2363,7 @@ /* Free up the user defined properties. */ for ( prop = font->user_props, i = 0; i < font->nuser_props; i++, prop++ ) - { FT_FREE( prop->name ); - if ( prop->format == BDF_ATOM ) - FT_FREE( prop->value.atom ); - } FT_FREE( font->user_props ); @@ -2404,7 +2378,7 @@ size_t* propid; - if ( font == 0 || font->props_size == 0 || name == 0 || *name == 0 ) + if ( font == NULL || font->props_size == 0 || name == NULL || *name == 0 ) return 0; propid = ft_hash_str_lookup( name, (FT_Hash)font->internal ); diff --git a/src/bzip2/ftbzip2.c b/src/bzip2/ftbzip2.c index 411c5d263..296cea088 100644 --- a/src/bzip2/ftbzip2.c +++ b/src/bzip2/ftbzip2.c @@ -8,7 +8,7 @@ * parse compressed PCF fonts, as found with many X11 server * distributions. * - * Copyright (C) 2010-2020 by + * Copyright (C) 2010-2021 by * Joel Klinghed. * * based on `src/gzip/ftgzip.c' @@ -70,7 +70,7 @@ FT_Pointer p = NULL; - (void)FT_ALLOC( p, sz ); + FT_MEM_QALLOC( p, sz ); return p; } @@ -327,12 +327,13 @@ FT_ULong count ) { FT_Error error = FT_Err_Ok; - FT_ULong delta; for (;;) { - delta = (FT_ULong)( zip->limit - zip->cursor ); + FT_ULong delta = (FT_ULong)( zip->limit - zip->cursor ); + + if ( delta >= count ) delta = count; @@ -494,7 +495,7 @@ stream->size = 0x7FFFFFFFL; /* don't know the real size! */ stream->pos = 0; - stream->base = 0; + stream->base = NULL; stream->read = ft_bzip2_stream_io; stream->close = ft_bzip2_stream_close; diff --git a/src/bzip2/rules.mk b/src/bzip2/rules.mk index eed0f4baa..e584277b0 100644 --- a/src/bzip2/rules.mk +++ b/src/bzip2/rules.mk @@ -2,7 +2,7 @@ # FreeType 2 BZIP2 support configuration rules # -# Copyright (C) 2010-2020 by +# Copyright (C) 2010-2021 by # Joel Klinghed. # # based on `src/lzw/rules.mk' diff --git a/src/cache/ftcache.c b/src/cache/ftcache.c index e90f4639c..ddd3e43c0 100644 --- a/src/cache/ftcache.c +++ b/src/cache/ftcache.c @@ -4,7 +4,7 @@ * * The FreeType Caching sub-system (body only). * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cache/ftcbasic.c b/src/cache/ftcbasic.c index 43ea314d4..1760c5fbd 100644 --- a/src/cache/ftcbasic.c +++ b/src/cache/ftcbasic.c @@ -4,7 +4,7 @@ * * The FreeType basic cache interface (body). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -108,12 +108,16 @@ if ( error || !face ) return result; +#ifdef FT_DEBUG_LEVEL_TRACE if ( (FT_ULong)face->num_glyphs > FT_UINT_MAX || 0 > face->num_glyphs ) + { FT_TRACE1(( "ftc_basic_family_get_count:" - " the number of glyphs in this face is %ld,\n" - " " - " which is too much and thus truncated\n", + " the number of glyphs in this face is %ld,\n", face->num_glyphs )); + FT_TRACE1(( " " + " which is too much and thus truncated\n" )); + } +#endif if ( !error ) result = (FT_UInt)face->num_glyphs; diff --git a/src/cache/ftccache.c b/src/cache/ftccache.c index 1c8e0f322..5bbf32929 100644 --- a/src/cache/ftccache.c +++ b/src/cache/ftccache.c @@ -4,7 +4,7 @@ * * The FreeType internal cache interface (body). * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -90,15 +90,14 @@ ftc_get_top_node_for_hash( FTC_Cache cache, FT_Offset hash ) { - FTC_Node* pnode; FT_Offset idx; idx = hash & cache->mask; if ( idx < cache->p ) idx = hash & ( 2 * cache->mask + 1 ); - pnode = cache->buckets + idx; - return pnode; + + return cache->buckets + idx; } #endif /* !FTC_INLINE */ @@ -119,7 +118,7 @@ FT_UFast count = mask + p + 1; /* number of buckets */ - /* do we need to shrink the buckets array? */ + /* do we need to expand the buckets array? */ if ( cache->slack < 0 ) { FTC_Node new_list = NULL; @@ -172,7 +171,7 @@ cache->p = p + 1; } - /* do we need to expand the buckets array? */ + /* do we need to shrink the buckets array? */ else if ( cache->slack > (FT_Long)count * FTC_HASH_SUB_LOAD ) { FT_UFast old_index = p + mask; @@ -189,7 +188,7 @@ /* if we can't shrink the array, leave immediately */ - if ( FT_RENEW_ARRAY( cache->buckets, + if ( FT_QRENEW_ARRAY( cache->buckets, ( mask + 1 ) * 2, mask + 1 ) ) break; @@ -341,7 +340,7 @@ cache->mask = FTC_HASH_INITIAL_SIZE - 1; cache->slack = FTC_HASH_INITIAL_SIZE * FTC_HASH_MAX_LOAD; - (void)FT_NEW_ARRAY( cache->buckets, FTC_HASH_INITIAL_SIZE * 2 ); + FT_MEM_NEW_ARRAY( cache->buckets, FTC_HASH_INITIAL_SIZE * 2 ); return error; } @@ -360,7 +359,7 @@ for ( i = 0; i < count; i++ ) { - FTC_Node *pnode = cache->buckets + i, next, node = *pnode; + FTC_Node node = cache->buckets[i], next; while ( node ) @@ -417,7 +416,7 @@ FTC_Node node ) { node->hash = hash; - node->cache_index = (FT_UInt16)cache->index; + node->cache_index = (FT_UShort)cache->index; node->ref_count = 0; ftc_node_hash_link( node, cache ); @@ -459,7 +458,7 @@ { error = cache->clazz.node_new( &node, query, cache ); } - FTC_CACHE_TRYLOOP_END( NULL ); + FTC_CACHE_TRYLOOP_END( NULL ) if ( error ) node = NULL; @@ -528,7 +527,7 @@ goto NewNode; } else - pnode = &((*pnode)->link); + pnode = &(*pnode)->link; } } @@ -571,8 +570,7 @@ count = cache->p + cache->mask + 1; for ( i = 0; i < count; i++ ) { - FTC_Node* bucket = cache->buckets + i; - FTC_Node* pnode = bucket; + FTC_Node* pnode = cache->buckets + i; for (;;) diff --git a/src/cache/ftccache.h b/src/cache/ftccache.h index 11698bb0e..4849b9235 100644 --- a/src/cache/ftccache.h +++ b/src/cache/ftccache.h @@ -4,7 +4,7 @@ * * FreeType internal cache interface (specification). * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -251,7 +251,7 @@ FT_BEGIN_HEADER goto NewNode_; \ } \ else \ - _pnode = &((*_pnode)->link); \ + _pnode = &(*_pnode)->link; \ } \ } \ \ diff --git a/src/cache/ftccback.h b/src/cache/ftccback.h index 542acb156..8185fe373 100644 --- a/src/cache/ftccback.h +++ b/src/cache/ftccback.h @@ -4,7 +4,7 @@ * * Callback functions of the caching sub-system (specification only). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cache/ftccmap.c b/src/cache/ftccmap.c index 468c008cf..40b449b9c 100644 --- a/src/cache/ftccmap.c +++ b/src/cache/ftccmap.c @@ -4,7 +4,7 @@ * * FreeType CharMap cache (body) * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -273,12 +273,11 @@ if ( error ) goto Exit; - FT_ASSERT( (FT_UInt)( char_code - FTC_CMAP_NODE( node )->first ) < - FTC_CMAP_INDICES_MAX ); + FT_ASSERT( char_code - FTC_CMAP_NODE( node )->first < + FTC_CMAP_INDICES_MAX ); /* something rotten can happen with rogue clients */ - if ( (FT_UInt)( char_code - FTC_CMAP_NODE( node )->first >= - FTC_CMAP_INDICES_MAX ) ) + if ( char_code - FTC_CMAP_NODE( node )->first >= FTC_CMAP_INDICES_MAX ) return 0; /* XXX: should return appropriate error */ gindex = FTC_CMAP_NODE( node )->indices[char_code - diff --git a/src/cache/ftcerror.h b/src/cache/ftcerror.h index bedfd2837..2c6faf65e 100644 --- a/src/cache/ftcerror.h +++ b/src/cache/ftcerror.h @@ -4,7 +4,7 @@ * * Caching sub-system error codes (specification only). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cache/ftcglyph.c b/src/cache/ftcglyph.c index 7f5438aad..52771c7a8 100644 --- a/src/cache/ftcglyph.c +++ b/src/cache/ftcglyph.c @@ -4,7 +4,7 @@ * * FreeType Glyph Image (FT_Glyph) cache (body). * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cache/ftcglyph.h b/src/cache/ftcglyph.h index 5629545f3..cf00cdc7b 100644 --- a/src/cache/ftcglyph.h +++ b/src/cache/ftcglyph.h @@ -4,7 +4,7 @@ * * FreeType abstract glyph cache (specification). * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cache/ftcimage.c b/src/cache/ftcimage.c index 58ebad8c9..3f12a654b 100644 --- a/src/cache/ftcimage.c +++ b/src/cache/ftcimage.c @@ -4,7 +4,7 @@ * * FreeType Image cache (body). * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cache/ftcimage.h b/src/cache/ftcimage.h index a400788b3..8b28d6f00 100644 --- a/src/cache/ftcimage.h +++ b/src/cache/ftcimage.h @@ -4,7 +4,7 @@ * * FreeType Generic Image cache (specification) * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cache/ftcmanag.c b/src/cache/ftcmanag.c index 436d41f37..512de8a3f 100644 --- a/src/cache/ftcmanag.c +++ b/src/cache/ftcmanag.c @@ -4,7 +4,7 @@ * * FreeType Cache Manager (body). * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -357,7 +357,7 @@ { FT_Error error; FT_Memory memory; - FTC_Manager manager = 0; + FTC_Manager manager = NULL; if ( !library ) @@ -368,7 +368,7 @@ memory = library->memory; - if ( FT_NEW( manager ) ) + if ( FT_QNEW( manager ) ) goto Exit; if ( max_faces == 0 ) @@ -399,6 +399,10 @@ manager, memory ); + manager->nodes_list = NULL; + manager->num_nodes = 0; + manager->num_caches = 0; + *amanager = manager; Exit: @@ -593,7 +597,7 @@ goto Exit; } - if ( !FT_ALLOC( cache, clazz->cache_size ) ) + if ( !FT_QALLOC( cache, clazz->cache_size ) ) { cache->manager = manager; cache->memory = memory; diff --git a/src/cache/ftcmanag.h b/src/cache/ftcmanag.h index 6c6ec6854..99aa92636 100644 --- a/src/cache/ftcmanag.h +++ b/src/cache/ftcmanag.h @@ -4,7 +4,7 @@ * * FreeType Cache Manager (specification). * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cache/ftcmru.c b/src/cache/ftcmru.c index 8feed45f6..2cac6f9d3 100644 --- a/src/cache/ftcmru.c +++ b/src/cache/ftcmru.c @@ -4,7 +4,7 @@ * * FreeType MRU support (body). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -262,7 +262,7 @@ if ( list->clazz.node_done ) list->clazz.node_done( node, list->data ); } - else if ( FT_ALLOC( node, list->clazz.node_size ) ) + else if ( FT_QALLOC( node, list->clazz.node_size ) ) goto Exit; error = list->clazz.node_init( node, key, list->data ); diff --git a/src/cache/ftcmru.h b/src/cache/ftcmru.h index ac4f9b126..6befde307 100644 --- a/src/cache/ftcmru.h +++ b/src/cache/ftcmru.h @@ -4,7 +4,7 @@ * * Simple MRU list-cache (specification). * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cache/ftcsbits.c b/src/cache/ftcsbits.c index e0db930af..362999fce 100644 --- a/src/cache/ftcsbits.c +++ b/src/cache/ftcsbits.c @@ -4,7 +4,7 @@ * * FreeType sbits manager (body). * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -52,10 +52,8 @@ pitch = -pitch; size = (FT_ULong)pitch * bitmap->rows; - if ( !size ) - return FT_Err_Ok; - if ( !FT_ALLOC( sbit->buffer, size ) ) + if ( !FT_QALLOC( sbit->buffer, size ) ) FT_MEM_COPY( sbit->buffer, bitmap->buffer, size ); return error; @@ -108,13 +106,12 @@ FT_Error error; FTC_GNode gnode = FTC_GNODE( snode ); FTC_Family family = gnode->family; - FT_Memory memory = manager->memory; FT_Face face; FTC_SBit sbit; FTC_SFamilyClass clazz; - if ( (FT_UInt)(gindex - gnode->gindex) >= snode->count ) + if ( gindex - gnode->gindex >= snode->count ) { FT_ERROR(( "ftc_snode_load: invalid glyph index" )); return FT_THROW( Invalid_Argument ); @@ -123,8 +120,6 @@ sbit = snode->sbits + ( gindex - gnode->gindex ); clazz = (FTC_SFamilyClass)family->clazz; - sbit->buffer = 0; - error = clazz->family_load_glyph( family, gindex, manager, &face ); if ( error ) goto BadGlyph; @@ -143,12 +138,13 @@ goto BadGlyph; } - /* Check whether our values fit into 8-bit containers! */ + /* Check whether our values fit into 8/16-bit containers! */ /* If this is not the case, our bitmap is too large */ /* and we will leave it as `missing' with sbit.buffer = 0 */ #define CHECK_CHAR( d ) ( temp = (FT_Char)d, (FT_Int) temp == (FT_Int) d ) #define CHECK_BYTE( d ) ( temp = (FT_Byte)d, (FT_UInt)temp == (FT_UInt)d ) +#define CHECK_SHRT( d ) ( temp = (FT_Short)d, (FT_Int)temp == (FT_Int) d ) /* horizontal advance in pixels */ xadvance = ( slot->advance.x + 32 ) >> 6; @@ -156,7 +152,7 @@ if ( !CHECK_BYTE( bitmap->rows ) || !CHECK_BYTE( bitmap->width ) || - !CHECK_CHAR( bitmap->pitch ) || + !CHECK_SHRT( bitmap->pitch ) || !CHECK_CHAR( slot->bitmap_left ) || !CHECK_CHAR( slot->bitmap_top ) || !CHECK_CHAR( xadvance ) || @@ -169,7 +165,7 @@ sbit->width = (FT_Byte)bitmap->width; sbit->height = (FT_Byte)bitmap->rows; - sbit->pitch = (FT_Char)bitmap->pitch; + sbit->pitch = (FT_Short)bitmap->pitch; sbit->left = (FT_Char)slot->bitmap_left; sbit->top = (FT_Char)slot->bitmap_top; sbit->xadvance = (FT_Char)xadvance; @@ -177,8 +173,17 @@ sbit->format = (FT_Byte)bitmap->pixel_mode; sbit->max_grays = (FT_Byte)(bitmap->num_grays - 1); - /* copy the bitmap into a new buffer -- ignore error */ - error = ftc_sbit_copy_bitmap( sbit, bitmap, memory ); + if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) + { + /* take the bitmap ownership */ + sbit->buffer = bitmap->buffer; + slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP; + } + else + { + /* copy the bitmap into a new buffer -- ignore error */ + error = ftc_sbit_copy_bitmap( sbit, bitmap, manager->memory ); + } /* now, compute size */ if ( asize ) @@ -337,8 +342,8 @@ if (list_changed) *list_changed = FALSE; - result = FT_BOOL( gnode->family == gquery->family && - (FT_UInt)( gindex - gnode->gindex ) < snode->count ); + result = FT_BOOL( gnode->family == gquery->family && + gindex - gnode->gindex < snode->count ); if ( result ) { /* check if we need to load the glyph bitmap now */ @@ -390,7 +395,7 @@ { error = ftc_snode_load( snode, cache->manager, gindex, &size ); } - FTC_CACHE_TRYLOOP_END( list_changed ); + FTC_CACHE_TRYLOOP_END( list_changed ) ftcsnode->ref_count--; /* unlock the node */ diff --git a/src/cache/ftcsbits.h b/src/cache/ftcsbits.h index 46f797e72..9f2d5fb33 100644 --- a/src/cache/ftcsbits.h +++ b/src/cache/ftcsbits.h @@ -4,7 +4,7 @@ * * A small-bitmap cache (specification). * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cache/rules.mk b/src/cache/rules.mk index 4738b5153..0abd216a8 100644 --- a/src/cache/rules.mk +++ b/src/cache/rules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 2000-2020 by +# Copyright (C) 2000-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/cff/cff.c b/src/cff/cff.c index 0fa6c8787..c2ffea3d0 100644 --- a/src/cff/cff.c +++ b/src/cff/cff.c @@ -4,7 +4,7 @@ * * FreeType OpenType driver component (body only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cff/cffcmap.c b/src/cff/cffcmap.c index 6d16ed422..ff1aae69e 100644 --- a/src/cff/cffcmap.c +++ b/src/cff/cffcmap.c @@ -4,7 +4,7 @@ * * CFF character mapping table (cmap) support (body). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cff/cffcmap.h b/src/cff/cffcmap.h index 69fab8dc6..221e255af 100644 --- a/src/cff/cffcmap.h +++ b/src/cff/cffcmap.h @@ -4,7 +4,7 @@ * * CFF character mapping table (cmap) support (specification). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cff/cffdrivr.c b/src/cff/cffdrivr.c index 486ab2423..59210f37c 100644 --- a/src/cff/cffdrivr.c +++ b/src/cff/cffdrivr.c @@ -4,7 +4,7 @@ * * OpenType font driver implementation (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -345,8 +345,8 @@ else { FT_ERROR(( "cff_get_glyph_name:" - " cannot get glyph name from a CFF2 font\n" - " " + " cannot get glyph name from a CFF2 font\n" )); + FT_ERROR(( " " " without the `psnames' module\n" )); error = FT_THROW( Missing_Module ); goto Exit; @@ -356,8 +356,8 @@ if ( !font->psnames ) { FT_ERROR(( "cff_get_glyph_name:" - " cannot get glyph name from CFF & CEF fonts\n" - " " + " cannot get glyph name from CFF & CEF fonts\n" )); + FT_ERROR(( " " " without the `psnames' module\n" )); error = FT_THROW( Missing_Module ); goto Exit; @@ -412,8 +412,8 @@ else { FT_ERROR(( "cff_get_name_index:" - " cannot get glyph index from a CFF2 font\n" - " " + " cannot get glyph index from a CFF2 font\n" )); + FT_ERROR(( " " " without the `psnames' module\n" )); return 0; } @@ -474,11 +474,11 @@ if ( cff && !cff->font_info ) { CFF_FontRecDict dict = &cff->top_font.font_dict; - PS_FontInfoRec *font_info = NULL; FT_Memory memory = face->root.memory; + PS_FontInfoRec* font_info = NULL; - if ( FT_ALLOC( font_info, sizeof ( *font_info ) ) ) + if ( FT_QNEW( font_info ) ) goto Fail; font_info->version = cff_index_get_sid_string( cff, @@ -515,15 +515,15 @@ FT_Error error = FT_Err_Ok; - if ( cff && cff->font_extra == NULL ) + if ( cff && !cff->font_extra ) { CFF_FontRecDict dict = &cff->top_font.font_dict; - PS_FontExtraRec* font_extra = NULL; FT_Memory memory = face->root.memory; + PS_FontExtraRec* font_extra = NULL; FT_String* embedded_postscript; - if ( FT_ALLOC( font_extra, sizeof ( *font_extra ) ) ) + if ( FT_QNEW( font_extra ) ) goto Fail; font_extra->fs_type = 0U; diff --git a/src/cff/cffdrivr.h b/src/cff/cffdrivr.h index d198dd35c..fce92bbb0 100644 --- a/src/cff/cffdrivr.h +++ b/src/cff/cffdrivr.h @@ -4,7 +4,7 @@ * * High-level OpenType driver interface (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cff/cfferrs.h b/src/cff/cfferrs.h index 5b00a3f0a..b507ec8bb 100644 --- a/src/cff/cfferrs.h +++ b/src/cff/cfferrs.h @@ -4,7 +4,7 @@ * * CFF error codes (specification only). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cff/cffgload.c b/src/cff/cffgload.c index feee38a41..97e8f9c1c 100644 --- a/src/cff/cffgload.c +++ b/src/cff/cffgload.c @@ -4,7 +4,7 @@ * * OpenType Glyph Loader (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -59,7 +59,7 @@ *pointer = (FT_Byte*)data.pointer; - *length = (FT_ULong)data.length; + *length = data.length; return error; } @@ -94,7 +94,7 @@ data.pointer = *pointer; - data.length = (FT_Int)length; + data.length = (FT_UInt)length; face->root.internal->incremental_interface->funcs->free_glyph_data( face->root.internal->incremental_interface->object, &data ); diff --git a/src/cff/cffgload.h b/src/cff/cffgload.h index 3b312f452..d0d6a6fa0 100644 --- a/src/cff/cffgload.h +++ b/src/cff/cffgload.h @@ -4,7 +4,7 @@ * * OpenType Glyph Loader (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cff/cffload.c b/src/cff/cffload.c index 73d3eecd3..3c3f6fe50 100644 --- a/src/cff/cffload.c +++ b/src/cff/cffload.c @@ -4,7 +4,7 @@ * * OpenType and CFF data/program tables loader (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -356,9 +356,9 @@ data_size = (FT_ULong)( idx->count + 1 ) * offsize; - if ( FT_NEW_ARRAY( idx->offsets, idx->count + 1 ) || - FT_STREAM_SEEK( idx->start + idx->hdr_size ) || - FT_FRAME_ENTER( data_size ) ) + if ( FT_QNEW_ARRAY( idx->offsets, idx->count + 1 ) || + FT_STREAM_SEEK( idx->start + idx->hdr_size ) || + FT_FRAME_ENTER( data_size ) ) goto Exit; poff = idx->offsets; @@ -400,7 +400,7 @@ /* Allocate a table containing pointers to an index's elements. */ /* The `pool' argument makes this function convert the index */ - /* entries to C-style strings (this is, NULL-terminated). */ + /* entries to C-style strings (this is, null-terminated). */ static FT_Error cff_index_get_pointers( CFF_Index idx, FT_Byte*** table, @@ -427,7 +427,7 @@ new_size = idx->data_size + idx->count; if ( idx->count > 0 && - !FT_NEW_ARRAY( tbl, idx->count + 1 ) && + !FT_QNEW_ARRAY( tbl, idx->count + 1 ) && ( !pool || !FT_ALLOC( new_bytes, new_size ) ) ) { FT_ULong n, cur_offset; @@ -622,7 +622,7 @@ FT_Byte* bytes; FT_ULong byte_len; FT_Error error; - FT_String* name = 0; + FT_String* name = NULL; if ( !idx->stream ) /* CFF2 does not include a name index */ @@ -634,10 +634,9 @@ if ( error ) goto Exit; - if ( !FT_ALLOC( name, byte_len + 1 ) ) + if ( !FT_QALLOC( name, byte_len + 1 ) ) { - if ( byte_len ) - FT_MEM_COPY( name, bytes, byte_len ); + FT_MEM_COPY( name, bytes, byte_len ); name[byte_len] = 0; } cff_index_forget_element( idx, &bytes ); @@ -772,8 +771,7 @@ case 3: /* first, compare to the cache */ - if ( (FT_UInt)( glyph_index - fdselect->cache_first ) < - fdselect->cache_count ) + if ( glyph_index - fdselect->cache_first < fdselect->cache_count ) { fd = fdselect->cache_fd; break; @@ -836,7 +834,6 @@ { FT_Error error = FT_Err_Ok; FT_UInt i; - FT_Long j; FT_UShort max_cid = 0; @@ -854,9 +851,10 @@ /* When multiple GIDs map to the same CID, we choose the lowest */ /* GID. This is not described in any spec, but it matches the */ - /* behaviour of recent Acroread versions. */ - for ( j = (FT_Long)num_glyphs - 1; j >= 0; j-- ) - charset->cids[charset->sids[j]] = (FT_UShort)j; + /* behaviour of recent Acroread versions. The loop stops when */ + /* the unsigned index wraps around after reaching zero. */ + for ( i = num_glyphs - 1; i < num_glyphs; i-- ) + charset->cids[charset->sids[i]] = (FT_UShort)i; charset->max_cid = max_cid; charset->num_glyphs = num_glyphs; @@ -932,7 +930,7 @@ goto Exit; /* Allocate memory for sids. */ - if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) ) + if ( FT_QNEW_ARRAY( charset->sids, num_glyphs ) ) goto Exit; /* assign the .notdef glyph */ @@ -1018,14 +1016,14 @@ case 0: if ( num_glyphs > 229 ) { - FT_ERROR(( "cff_charset_load: implicit charset larger than\n" - "predefined charset (Adobe ISO-Latin)\n" )); + FT_ERROR(( "cff_charset_load: implicit charset larger than\n" )); + FT_ERROR(( "predefined charset (Adobe ISO-Latin)\n" )); error = FT_THROW( Invalid_File_Format ); goto Exit; } /* Allocate memory for sids. */ - if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) ) + if ( FT_QNEW_ARRAY( charset->sids, num_glyphs ) ) goto Exit; /* Copy the predefined charset into the allocated memory. */ @@ -1036,14 +1034,14 @@ case 1: if ( num_glyphs > 166 ) { - FT_ERROR(( "cff_charset_load: implicit charset larger than\n" - "predefined charset (Adobe Expert)\n" )); + FT_ERROR(( "cff_charset_load: implicit charset larger than\n" )); + FT_ERROR(( "predefined charset (Adobe Expert)\n" )); error = FT_THROW( Invalid_File_Format ); goto Exit; } /* Allocate memory for sids. */ - if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) ) + if ( FT_QNEW_ARRAY( charset->sids, num_glyphs ) ) goto Exit; /* Copy the predefined charset into the allocated memory. */ @@ -1054,14 +1052,14 @@ case 2: if ( num_glyphs > 87 ) { - FT_ERROR(( "cff_charset_load: implicit charset larger than\n" - "predefined charset (Adobe Expert Subset)\n" )); + FT_ERROR(( "cff_charset_load: implicit charset larger than\n" )); + FT_ERROR(( "predefined charset (Adobe Expert Subset)\n" )); error = FT_THROW( Invalid_File_Format ); goto Exit; } /* Allocate memory for sids. */ - if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) ) + if ( FT_QNEW_ARRAY( charset->sids, num_glyphs ) ) goto Exit; /* Copy the predefined charset into the allocated memory. */ @@ -1087,7 +1085,6 @@ FT_FREE( charset->cids ); charset->format = 0; charset->offset = 0; - charset->sids = 0; } return error; @@ -1141,6 +1138,8 @@ { FT_UInt vsOffset; FT_UInt format; + FT_UInt dataCount; + FT_UInt regionCount; FT_ULong regionListOffset; @@ -1163,16 +1162,16 @@ } /* read top level fields */ - if ( FT_READ_ULONG( regionListOffset ) || - FT_READ_USHORT( vstore->dataCount ) ) + if ( FT_READ_ULONG( regionListOffset ) || + FT_READ_USHORT( dataCount ) ) goto Exit; /* make temporary copy of item variation data offsets; */ /* we'll parse region list first, then come back */ - if ( FT_NEW_ARRAY( dataOffsetArray, vstore->dataCount ) ) + if ( FT_QNEW_ARRAY( dataOffsetArray, dataCount ) ) goto Exit; - for ( i = 0; i < vstore->dataCount; i++ ) + for ( i = 0; i < dataCount; i++ ) { if ( FT_READ_ULONG( dataOffsetArray[i] ) ) goto Exit; @@ -1181,20 +1180,24 @@ /* parse regionList and axisLists */ if ( FT_STREAM_SEEK( vsOffset + regionListOffset ) || FT_READ_USHORT( vstore->axisCount ) || - FT_READ_USHORT( vstore->regionCount ) ) + FT_READ_USHORT( regionCount ) ) goto Exit; - if ( FT_NEW_ARRAY( vstore->varRegionList, vstore->regionCount ) ) + vstore->regionCount = 0; + if ( FT_QNEW_ARRAY( vstore->varRegionList, regionCount ) ) goto Exit; - for ( i = 0; i < vstore->regionCount; i++ ) + for ( i = 0; i < regionCount; i++ ) { CFF_VarRegion* region = &vstore->varRegionList[i]; - if ( FT_NEW_ARRAY( region->axisList, vstore->axisCount ) ) + if ( FT_QNEW_ARRAY( region->axisList, vstore->axisCount ) ) goto Exit; + /* keep track of how many axisList to deallocate on error */ + vstore->regionCount++; + for ( j = 0; j < vstore->axisCount; j++ ) { CFF_AxisCoords* axis = ®ion->axisList[j]; @@ -1214,10 +1217,11 @@ } /* use dataOffsetArray now to parse varData items */ - if ( FT_NEW_ARRAY( vstore->varData, vstore->dataCount ) ) + vstore->dataCount = 0; + if ( FT_QNEW_ARRAY( vstore->varData, dataCount ) ) goto Exit; - for ( i = 0; i < vstore->dataCount; i++ ) + for ( i = 0; i < dataCount; i++ ) { CFF_VarData* data = &vstore->varData[i]; @@ -1236,9 +1240,12 @@ if ( FT_READ_USHORT( data->regionIdxCount ) ) goto Exit; - if ( FT_NEW_ARRAY( data->regionIndices, data->regionIdxCount ) ) + if ( FT_QNEW_ARRAY( data->regionIndices, data->regionIdxCount ) ) goto Exit; + /* keep track of how many regionIndices to deallocate on error */ + vstore->dataCount++; + for ( j = 0; j < data->regionIdxCount; j++ ) { if ( FT_READ_USHORT( data->regionIndices[j] ) ) @@ -1322,9 +1329,9 @@ /* increase or allocate `blend_stack' and reset `blend_top'; */ /* prepare to append `numBlends' values to the buffer */ - if ( FT_REALLOC( subFont->blend_stack, - subFont->blend_alloc, - subFont->blend_alloc + size ) ) + if ( FT_QREALLOC( subFont->blend_stack, + subFont->blend_alloc, + subFont->blend_alloc + size ) ) goto Exit; subFont->blend_top = subFont->blend_stack + subFont->blend_used; @@ -1437,9 +1444,7 @@ /* prepare buffer for the blend vector */ len = varData->regionIdxCount + 1; /* add 1 for default component */ - if ( FT_REALLOC( blend->BV, - blend->lenBV * sizeof( *blend->BV ), - len * sizeof( *blend->BV ) ) ) + if ( FT_QRENEW_ARRAY( blend->BV, blend->lenBV, len ) ) goto Exit; blend->lenBV = len; @@ -1456,10 +1461,8 @@ if ( master == 0 ) { blend->BV[master] = FT_FIXED_ONE; - FT_TRACE4(( " build blend vector len %d\n" - " [ %f ", - len, - blend->BV[master] / 65536.0 )); + FT_TRACE4(( " build blend vector len %d\n", len )); + FT_TRACE4(( " [ %f ", blend->BV[master] / 65536.0 )); continue; } @@ -1543,9 +1546,7 @@ if ( lenNDV != 0 ) { /* user has set a normalized vector */ - if ( FT_REALLOC( blend->lastNDV, - blend->lenNDV * sizeof ( *NDV ), - lenNDV * sizeof ( *NDV ) ) ) + if ( FT_QRENEW_ARRAY( blend->lastNDV, blend->lenNDV, lenNDV ) ) goto Exit; FT_MEM_COPY( blend->lastNDV, @@ -1827,7 +1828,8 @@ /* Construct code to GID mapping from code to SID mapping */ /* and charset. */ - encoding->count = 0; + encoding->offset = offset; /* used in cff_face_init */ + encoding->count = 0; error = cff_charset_compute_cids( charset, num_glyphs, stream->memory ); @@ -2363,8 +2365,8 @@ if ( font->name_index.count > 1 ) { FT_ERROR(( "cff_font_load:" - " invalid CFF font with multiple subfonts\n" - " " + " invalid CFF font with multiple subfonts\n" )); + FT_ERROR(( " " " in SFNT wrapper\n" )); error = FT_THROW( Invalid_File_Format ); goto Exit; diff --git a/src/cff/cffload.h b/src/cff/cffload.h index fc998db2d..20f9296c4 100644 --- a/src/cff/cffload.h +++ b/src/cff/cffload.h @@ -4,7 +4,7 @@ * * OpenType & CFF data/program tables loader (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cff/cffobjs.c b/src/cff/cffobjs.c index d555d5235..3a4d47dbd 100644 --- a/src/cff/cffobjs.c +++ b/src/cff/cffobjs.c @@ -4,7 +4,7 @@ * * OpenType objects manager (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -283,6 +283,8 @@ cff_size_request( FT_Size size, FT_Size_Request req ) { + FT_Error error; + CFF_Size cffsize = (CFF_Size)size; PSH_Globals_Funcs funcs; @@ -304,7 +306,9 @@ #endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ - FT_Request_Metrics( size->face, req ); + error = FT_Request_Metrics( size->face, req ); + if ( error ) + goto Exit; funcs = cff_size_get_globals_funcs( cffsize ); @@ -345,7 +349,8 @@ } } - return FT_Err_Ok; + Exit: + return error; } @@ -659,8 +664,8 @@ if ( dict->cid_registry == 0xFFFFU && !psnames ) { FT_ERROR(( "cff_face_init:" - " cannot open CFF & CEF fonts\n" - " " + " cannot open CFF & CEF fonts\n" )); + FT_ERROR(( " " " without the `psnames' module\n" )); error = FT_THROW( Missing_Module ); goto Exit; @@ -684,13 +689,13 @@ /* In Multiple Master CFFs, two SIDs hold the Normalize Design */ /* Vector (NDV) and Convert Design Vector (CDV) charstrings, */ - /* which may contain NULL bytes in the middle of the data, too. */ + /* which may contain null bytes in the middle of the data, too. */ /* We thus access `cff->strings' directly. */ for ( idx = 1; idx < cff->num_strings; idx++ ) { FT_Byte* s1 = cff->strings[idx - 1]; FT_Byte* s2 = cff->strings[idx]; - FT_PtrDist s1len = s2 - s1 - 1; /* without the final NULL byte */ + FT_PtrDist s1len = s2 - s1 - 1; /* without the final null byte */ FT_PtrDist l; @@ -1049,11 +1054,11 @@ { FT_CharMapRec cmaprec; FT_CharMap cmap; - FT_UInt nn; + FT_Int nn; CFF_Encoding encoding = &cff->encoding; - for ( nn = 0; nn < (FT_UInt)cffface->num_charmaps; nn++ ) + for ( nn = 0; nn < cffface->num_charmaps; nn++ ) { cmap = cffface->charmaps[nn]; @@ -1078,7 +1083,7 @@ cmaprec.encoding_id = TT_MS_ID_UNICODE_CS; cmaprec.encoding = FT_ENCODING_UNICODE; - nn = (FT_UInt)cffface->num_charmaps; + nn = cffface->num_charmaps; error = FT_CMap_New( &cff_cmap_unicode_class_rec, NULL, &cmaprec, NULL ); @@ -1089,7 +1094,7 @@ error = FT_Err_Ok; /* if no Unicode charmap was previously selected, select this one */ - if ( !cffface->charmap && nn != (FT_UInt)cffface->num_charmaps ) + if ( !cffface->charmap && nn != cffface->num_charmaps ) cffface->charmap = cffface->charmaps[nn]; Skip_Unicode: @@ -1174,11 +1179,7 @@ /* set default property values, cf. `ftcffdrv.h' */ -#ifdef CFF_CONFIG_OPTION_OLD_ENGINE - driver->hinting_engine = FT_HINTING_FREETYPE; -#else driver->hinting_engine = FT_HINTING_ADOBE; -#endif driver->no_stem_darkening = TRUE; diff --git a/src/cff/cffobjs.h b/src/cff/cffobjs.h index 845bd9094..149a8a2f0 100644 --- a/src/cff/cffobjs.h +++ b/src/cff/cffobjs.h @@ -4,7 +4,7 @@ * * OpenType objects manager (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cff/cffparse.c b/src/cff/cffparse.c index 69bcd5d95..dde55e95c 100644 --- a/src/cff/cffparse.c +++ b/src/cff/cffparse.c @@ -4,7 +4,7 @@ * * CFF token stream parser (body) * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -62,7 +62,7 @@ parser->num_axes = num_axes; /* allocate the stack buffer */ - if ( FT_NEW_ARRAY( parser->stack, stackSize ) ) + if ( FT_QNEW_ARRAY( parser->stack, stackSize ) ) { FT_FREE( parser->stack ); goto Exit; @@ -713,9 +713,10 @@ ( max_scaling - min_scaling ) > 9 ) { FT_TRACE1(( "cff_parse_font_matrix:" - " strange scaling values (minimum %ld, maximum %ld),\n" - " " - " using default matrix\n", min_scaling, max_scaling )); + " strange scaling values (minimum %ld, maximum %ld),\n", + min_scaling, max_scaling )); + FT_TRACE1(( " " + " using default matrix\n" )); goto Unlikely; } @@ -1515,6 +1516,7 @@ case cff_kind_fixed_thousand: FT_TRACE4(( " %f\n", (double)val / 65536 / 1000 )); + break; default: ; /* never reached */ diff --git a/src/cff/cffparse.h b/src/cff/cffparse.h index 6f3fbb37d..a28ab5220 100644 --- a/src/cff/cffparse.h +++ b/src/cff/cffparse.h @@ -4,7 +4,7 @@ * * CFF token stream parser (specification) * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cff/cfftoken.h b/src/cff/cfftoken.h index 4c6a53eec..eef30690c 100644 --- a/src/cff/cfftoken.h +++ b/src/cff/cfftoken.h @@ -4,7 +4,7 @@ * * CFF token definitions (specification only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cff/module.mk b/src/cff/module.mk index bd728c6a3..cfa444d8f 100644 --- a/src/cff/module.mk +++ b/src/cff/module.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/cff/rules.mk b/src/cff/rules.mk index 70bb92d50..e54614ffe 100644 --- a/src/cff/rules.mk +++ b/src/cff/rules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/cid/ciderrs.h b/src/cid/ciderrs.h index f698bb229..2d762d9e1 100644 --- a/src/cid/ciderrs.h +++ b/src/cid/ciderrs.h @@ -4,7 +4,7 @@ * * CID error codes (specification only). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cid/cidgload.c b/src/cid/cidgload.c index 54aa62f81..a46d063df 100644 --- a/src/cid/cidgload.c +++ b/src/cid/cidgload.c @@ -4,7 +4,7 @@ * * CID-keyed Type1 Glyph Loader (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -63,7 +63,7 @@ #endif - FT_TRACE1(( "cid_load_glyph: glyph index %d\n", glyph_index )); + FT_TRACE1(( "cid_load_glyph: glyph index %u\n", glyph_index )); #ifdef FT_CONFIG_OPTION_INCREMENTAL @@ -76,20 +76,17 @@ error = inc->funcs->get_glyph_data( inc->object, glyph_index, &glyph_data ); - if ( error ) + if ( error || glyph_data.length < cid->fd_bytes ) goto Exit; p = (FT_Byte*)glyph_data.pointer; - fd_select = cid_get_offset( &p, (FT_Byte)cid->fd_bytes ); + fd_select = cid_get_offset( &p, cid->fd_bytes ); - if ( glyph_data.length != 0 ) - { - glyph_length = (FT_ULong)( glyph_data.length - cid->fd_bytes ); - (void)FT_ALLOC( charstring, glyph_length ); - if ( !error ) - ft_memcpy( charstring, glyph_data.pointer + cid->fd_bytes, + glyph_length = glyph_data.length - cid->fd_bytes; + + if ( !FT_QALLOC( charstring, glyph_length ) ) + FT_MEM_COPY( charstring, glyph_data.pointer + cid->fd_bytes, glyph_length ); - } inc->funcs->free_glyph_data( inc->object, &glyph_data ); @@ -104,7 +101,7 @@ /* For ordinary fonts read the CID font dictionary index */ /* and charstring offset from the CIDMap. */ { - FT_UInt entry_len = (FT_UInt)( cid->fd_bytes + cid->gd_bytes ); + FT_UInt entry_len = cid->fd_bytes + cid->gd_bytes; FT_ULong off1, off2; @@ -114,15 +111,15 @@ goto Exit; p = (FT_Byte*)stream->cursor; - fd_select = cid_get_offset( &p, (FT_Byte)cid->fd_bytes ); - off1 = cid_get_offset( &p, (FT_Byte)cid->gd_bytes ); + fd_select = cid_get_offset( &p, cid->fd_bytes ); + off1 = cid_get_offset( &p, cid->gd_bytes ); p += cid->fd_bytes; - off2 = cid_get_offset( &p, (FT_Byte)cid->gd_bytes ); + off2 = cid_get_offset( &p, cid->gd_bytes ); FT_FRAME_EXIT(); - if ( fd_select >= (FT_ULong)cid->num_dicts || - off2 > stream->size || - off1 > off2 ) + if ( fd_select >= cid->num_dicts || + off2 > stream->size || + off1 > off2 ) { FT_TRACE0(( "cid_load_glyph: invalid glyph stream offsets\n" )); error = FT_THROW( Invalid_Offset ); @@ -130,11 +127,10 @@ } glyph_length = off2 - off1; - if ( glyph_length == 0 ) - goto Exit; - if ( FT_ALLOC( charstring, glyph_length ) ) - goto Exit; - if ( FT_STREAM_READ_AT( cid->data_offset + off1, + + if ( glyph_length == 0 || + FT_QALLOC( charstring, glyph_length ) || + FT_STREAM_READ_AT( cid->data_offset + off1, charstring, glyph_length ) ) goto Exit; } diff --git a/src/cid/cidgload.h b/src/cid/cidgload.h index da36e37e0..8b515efa0 100644 --- a/src/cid/cidgload.h +++ b/src/cid/cidgload.h @@ -4,7 +4,7 @@ * * OpenType Glyph Loader (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cid/cidload.c b/src/cid/cidload.c index bb9136a3d..496219de8 100644 --- a/src/cid/cidload.c +++ b/src/cid/cidload.c @@ -4,7 +4,7 @@ * * CID-keyed Type1 font loader (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -41,7 +41,7 @@ /* read a single offset */ FT_LOCAL_DEF( FT_ULong ) cid_get_offset( FT_Byte* *start, - FT_Byte offsize ) + FT_UInt offsize ) { FT_ULong result; FT_Byte* p = *start; @@ -113,7 +113,7 @@ CID_FaceDict dict; - if ( parser->num_dict < 0 || parser->num_dict >= cid->num_dicts ) + if ( parser->num_dict >= cid->num_dicts ) { FT_ERROR(( "cid_load_keyword: invalid use of `%s'\n", keyword->ident )); @@ -164,7 +164,7 @@ FT_Fixed temp_scale; - if ( parser->num_dict >= 0 && parser->num_dict < face->cid.num_dicts ) + if ( parser->num_dict < face->cid.num_dicts ) { FT_Matrix* matrix; FT_Vector* offset; @@ -244,11 +244,11 @@ FT_Memory memory = face->root.memory; FT_Stream stream = parser->stream; FT_Error error = FT_Err_Ok; - FT_Long num_dicts; + FT_Long num_dicts, max_dicts; num_dicts = cid_parser_to_int( parser ); - if ( num_dicts < 0 ) + if ( num_dicts < 0 || num_dicts > FT_INT_MAX ) { FT_ERROR(( "parse_fd_array: invalid number of dictionaries\n" )); goto Exit; @@ -272,18 +272,18 @@ * need a `dup X' at the very beginning and a `put' at the end, so a * rough guess using 100 bytes as the minimum is justified. */ - if ( (FT_ULong)num_dicts > stream->size / 100 ) + max_dicts = (FT_Long)( stream->size / 100 ); + if ( num_dicts > max_dicts ) { FT_TRACE0(( "parse_fd_array: adjusting FDArray size" " (from %ld to %ld)\n", - num_dicts, - stream->size / 100 )); - num_dicts = (FT_Long)( stream->size / 100 ); + num_dicts, max_dicts )); + num_dicts = max_dicts; } if ( !cid->font_dicts ) { - FT_Int n; + FT_UInt n; if ( FT_NEW_ARRAY( cid->font_dicts, num_dicts ) ) @@ -322,7 +322,7 @@ CID_FaceDict dict; - if ( parser->num_dict >= 0 && parser->num_dict < face->cid.num_dicts ) + if ( parser->num_dict < face->cid.num_dicts ) { dict = face->cid.font_dicts + parser->num_dict; @@ -345,7 +345,7 @@ CID_Parser* parser ) { #ifdef FT_DEBUG_LEVEL_TRACE - if ( parser->num_dict >= 0 && parser->num_dict < face->cid.num_dicts ) + if ( parser->num_dict < face->cid.num_dicts ) { T1_TokenRec token; FT_UInt len; @@ -427,7 +427,7 @@ parser->num_dict++; #ifdef FT_DEBUG_LEVEL_TRACE - FT_TRACE4(( " FontDict %d", parser->num_dict )); + FT_TRACE4(( " FontDict %u", parser->num_dict )); if ( parser->num_dict > face->cid.num_dicts ) FT_TRACE4(( " (ignored)" )); FT_TRACE4(( "\n" )); @@ -517,7 +517,7 @@ FT_Memory memory = face->root.memory; FT_Stream stream = face->cid_stream; FT_Error error; - FT_Int n; + FT_UInt n; CID_Subrs subr; FT_UInt max_offsets = 0; FT_ULong* offsets = NULL; @@ -552,20 +552,20 @@ goto Fail; } - if ( FT_RENEW_ARRAY( offsets, max_offsets, new_max ) ) + if ( FT_QRENEW_ARRAY( offsets, max_offsets, new_max ) ) goto Fail; max_offsets = new_max; } /* read the subrmap's offsets */ - if ( FT_STREAM_SEEK( cid->data_offset + dict->subrmap_offset ) || - FT_FRAME_ENTER( ( num_subrs + 1 ) * (FT_UInt)dict->sd_bytes ) ) + if ( FT_STREAM_SEEK( cid->data_offset + dict->subrmap_offset ) || + FT_FRAME_ENTER( ( num_subrs + 1 ) * dict->sd_bytes ) ) goto Fail; p = (FT_Byte*)stream->cursor; for ( count = 0; count <= num_subrs; count++ ) - offsets[count] = cid_get_offset( &p, (FT_Byte)dict->sd_bytes ); + offsets[count] = cid_get_offset( &p, dict->sd_bytes ); FT_FRAME_EXIT(); @@ -589,12 +589,12 @@ /* allocate, and read them */ data_len = offsets[num_subrs] - offsets[0]; - if ( FT_NEW_ARRAY( subr->code, num_subrs + 1 ) || - FT_ALLOC( subr->code[0], data_len ) ) + if ( FT_QNEW_ARRAY( subr->code, num_subrs + 1 ) || + FT_QALLOC( subr->code[0], data_len ) ) goto Fail; if ( FT_STREAM_SEEK( cid->data_offset + offsets[0] ) || - FT_STREAM_READ( subr->code[0], data_len ) ) + FT_STREAM_READ( subr->code[0], data_len ) ) goto Fail; /* set up pointers */ @@ -665,17 +665,18 @@ static FT_Error - cid_hex_to_binary( FT_Byte* data, - FT_ULong data_len, - FT_ULong offset, - CID_Face face ) + cid_hex_to_binary( FT_Byte* data, + FT_ULong data_len, + FT_ULong offset, + CID_Face face, + FT_ULong* data_written ) { FT_Stream stream = face->root.stream; FT_Error error; FT_Byte buffer[256]; FT_Byte *p, *plimit; - FT_Byte *d, *dlimit; + FT_Byte *d = data, *dlimit; FT_Byte val; FT_Bool upper_nibble, done; @@ -684,7 +685,6 @@ if ( FT_STREAM_SEEK( offset ) ) goto Exit; - d = data; dlimit = d + data_len; p = buffer; plimit = p; @@ -758,6 +758,7 @@ error = FT_Err_Ok; Exit: + *data_written = (FT_ULong)( d - data ); return error; } @@ -770,12 +771,11 @@ CID_Parser* parser; FT_Memory memory = face->root.memory; FT_Error error; - FT_Int n; + FT_UInt n; CID_FaceInfo cid = &face->cid; FT_ULong binary_length; - FT_ULong entry_len; cid_init_loader( &loader, face ); @@ -803,8 +803,8 @@ if ( parser->binary_length > face->root.stream->size - parser->data_offset ) { - FT_TRACE0(( "cid_face_open: adjusting length of binary data\n" - " (from %ld to %ld bytes)\n", + FT_TRACE0(( "cid_face_open: adjusting length of binary data\n" )); + FT_TRACE0(( " (from %lu to %lu bytes)\n", parser->binary_length, face->root.stream->size - parser->data_offset )); parser->binary_length = face->root.stream->size - @@ -812,15 +812,16 @@ } /* we must convert the data section from hexadecimal to binary */ - if ( FT_ALLOC( face->binary_data, parser->binary_length ) || + if ( FT_QALLOC( face->binary_data, parser->binary_length ) || FT_SET_ERROR( cid_hex_to_binary( face->binary_data, parser->binary_length, parser->data_offset, - face ) ) ) + face, + &binary_length ) ) ) goto Exit; FT_Stream_OpenMemory( face->cid_stream, - face->binary_data, parser->binary_length ); + face->binary_data, binary_length ); cid->data_offset = 0; } else @@ -831,10 +832,10 @@ /* sanity tests */ - if ( cid->fd_bytes < 0 || cid->gd_bytes < 1 ) + if ( cid->gd_bytes == 0 ) { FT_ERROR(( "cid_face_open:" - " Invalid `FDBytes' or `GDBytes' value\n" )); + " Invalid `GDBytes' value\n" )); error = FT_THROW( Invalid_File_Format ); goto Exit; } @@ -843,15 +844,32 @@ if ( cid->fd_bytes > 4 || cid->gd_bytes > 4 ) { FT_ERROR(( "cid_face_open:" - " Values of `FDBytes' or `GDBytes' larger than 4\n" - " " + " Values of `FDBytes' or `GDBytes' larger than 4\n" )); + FT_ERROR(( " " " are not supported\n" )); error = FT_THROW( Invalid_File_Format ); goto Exit; } binary_length = face->cid_stream->size - cid->data_offset; - entry_len = (FT_ULong)( cid->fd_bytes + cid->gd_bytes ); + + if ( cid->cidmap_offset > binary_length ) + { + FT_ERROR(( "cid_face_open: Invalid `CIDMapOffset' value\n" )); + error = FT_THROW( Invalid_File_Format ); + goto Exit; + } + + /* the initial pre-check prevents the multiplication overflow */ + if ( cid->cid_count > FT_ULONG_MAX / 8 || + cid->cid_count * ( cid->fd_bytes + cid->gd_bytes ) > + binary_length - cid->cidmap_offset ) + { + FT_ERROR(( "cid_face_open: Invalid `CIDCount' value\n" )); + error = FT_THROW( Invalid_File_Format ); + goto Exit; + } + for ( n = 0; n < cid->num_dicts; n++ ) { @@ -877,8 +895,7 @@ dict->private_dict.blue_fuzz = 1; } - if ( dict->sd_bytes < 0 || - ( dict->num_subrs && dict->sd_bytes < 1 ) ) + if ( dict->num_subrs && dict->sd_bytes == 0 ) { FT_ERROR(( "cid_face_open: Invalid `SDBytes' value\n" )); error = FT_THROW( Invalid_File_Format ); @@ -901,11 +918,10 @@ goto Exit; } - /* `num_subrs' is scanned as a signed integer */ - if ( (FT_Int)dict->num_subrs < 0 || - ( dict->sd_bytes && - dict->num_subrs > ( binary_length - dict->subrmap_offset ) / - (FT_UInt)dict->sd_bytes ) ) + /* the initial pre-check prevents the multiplication overflow */ + if ( dict->num_subrs > FT_UINT_MAX / 4 || + dict->num_subrs * dict->sd_bytes > + binary_length - dict->subrmap_offset ) { FT_ERROR(( "cid_face_open: Invalid `SubrCount' value\n" )); error = FT_THROW( Invalid_File_Format ); @@ -913,22 +929,6 @@ } } - if ( cid->cidmap_offset > binary_length ) - { - FT_ERROR(( "cid_face_open: Invalid `CIDMapOffset' value\n" )); - error = FT_THROW( Invalid_File_Format ); - goto Exit; - } - - if ( entry_len && - cid->cid_count > - ( binary_length - cid->cidmap_offset ) / entry_len ) - { - FT_ERROR(( "cid_face_open: Invalid `CIDCount' value\n" )); - error = FT_THROW( Invalid_File_Format ); - goto Exit; - } - /* we can now safely proceed */ error = cid_read_subrs( face ); diff --git a/src/cid/cidload.h b/src/cid/cidload.h index 06fb9ef47..ee1d48650 100644 --- a/src/cid/cidload.h +++ b/src/cid/cidload.h @@ -4,7 +4,7 @@ * * CID-keyed Type1 font loader (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -37,7 +37,7 @@ FT_BEGIN_HEADER FT_LOCAL( FT_ULong ) cid_get_offset( FT_Byte** start, - FT_Byte offsize ); + FT_UInt offsize ); FT_LOCAL( FT_Error ) cid_face_open( CID_Face face, diff --git a/src/cid/cidobjs.c b/src/cid/cidobjs.c index 04b295eb8..e3c29c22f 100644 --- a/src/cid/cidobjs.c +++ b/src/cid/cidobjs.c @@ -4,7 +4,7 @@ * * CID objects manager (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -157,10 +157,14 @@ cid_size_request( FT_Size size, FT_Size_Request req ) { + FT_Error error; + PSH_Globals_Funcs funcs; - FT_Request_Metrics( size->face, req ); + error = FT_Request_Metrics( size->face, req ); + if ( error ) + goto Exit; funcs = cid_size_get_globals_funcs( (CID_Size)size ); @@ -170,7 +174,8 @@ size->metrics.y_scale, 0, 0 ); - return FT_Err_Ok; + Exit: + return error; } @@ -211,7 +216,7 @@ /* release subrs */ if ( face->subrs ) { - FT_Int n; + FT_UInt n; for ( n = 0; n < cid->num_dicts; n++ ) @@ -479,11 +484,7 @@ /* set default property values, cf. `ftt1drv.h' */ -#ifdef T1_CONFIG_OPTION_OLD_ENGINE - driver->hinting_engine = FT_HINTING_FREETYPE; -#else driver->hinting_engine = FT_HINTING_ADOBE; -#endif driver->no_stem_darkening = TRUE; diff --git a/src/cid/cidobjs.h b/src/cid/cidobjs.h index 6ae306137..32f59cbcc 100644 --- a/src/cid/cidobjs.h +++ b/src/cid/cidobjs.h @@ -4,7 +4,7 @@ * * CID objects manager (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cid/cidparse.c b/src/cid/cidparse.c index 1fc098b44..852c9b6b9 100644 --- a/src/cid/cidparse.c +++ b/src/cid/cidparse.c @@ -4,7 +4,7 @@ * * CID-keyed Type1 parser (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -73,7 +73,11 @@ /* first of all, check the font format in the header */ if ( FT_FRAME_ENTER( 31 ) ) + { + FT_TRACE2(( " not a CID-keyed font\n" )); + error = FT_THROW( Unknown_File_Format ); goto Exit; + } if ( ft_strncmp( (char *)stream->cursor, "%!PS-Adobe-3.0 Resource-CIDFont", 31 ) ) @@ -181,7 +185,7 @@ parser->root.base = parser->postscript; parser->root.cursor = parser->postscript; parser->root.limit = parser->root.cursor + ps_len; - parser->num_dict = -1; + parser->num_dict = FT_UINT_MAX; /* Finally, we check whether `StartData' or `/sfnts' was real -- */ /* it could be in a comment or string. We also get the arguments */ diff --git a/src/cid/cidparse.h b/src/cid/cidparse.h index 0b49bebf4..fbc437bc3 100644 --- a/src/cid/cidparse.h +++ b/src/cid/cidparse.h @@ -4,7 +4,7 @@ * * CID-keyed Type1 parser (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -78,7 +78,7 @@ FT_BEGIN_HEADER FT_ULong binary_length; CID_FaceInfo cid; - FT_Int num_dict; + FT_UInt num_dict; } CID_Parser; diff --git a/src/cid/cidriver.c b/src/cid/cidriver.c index d08cea1d7..a0898dfa2 100644 --- a/src/cid/cidriver.c +++ b/src/cid/cidriver.c @@ -4,7 +4,7 @@ * * CID driver interface (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cid/cidriver.h b/src/cid/cidriver.h index 0fc8ed37b..3ff5f78e1 100644 --- a/src/cid/cidriver.h +++ b/src/cid/cidriver.h @@ -4,7 +4,7 @@ * * High-level CID driver interface (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cid/cidtoken.h b/src/cid/cidtoken.h index e9f068bb5..84c825801 100644 --- a/src/cid/cidtoken.h +++ b/src/cid/cidtoken.h @@ -4,7 +4,7 @@ * * CID token definitions (specification only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/cid/module.mk b/src/cid/module.mk index 9fb02235e..2e16262b3 100644 --- a/src/cid/module.mk +++ b/src/cid/module.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/cid/rules.mk b/src/cid/rules.mk index 94f663c80..933b2daf7 100644 --- a/src/cid/rules.mk +++ b/src/cid/rules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/cid/type1cid.c b/src/cid/type1cid.c index 082e8bfe5..5405ecffc 100644 --- a/src/cid/type1cid.c +++ b/src/cid/type1cid.c @@ -4,7 +4,7 @@ * * FreeType OpenType driver component (body only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/dlg/dlgwrap.c b/src/dlg/dlgwrap.c new file mode 100644 index 000000000..e0b9a8d29 --- /dev/null +++ b/src/dlg/dlgwrap.c @@ -0,0 +1,32 @@ +/**************************************************************************** + * + * dlgwrap.c + * + * Wrapper file for the 'dlg' library (body only) + * + * Copyright (C) 2020-2021 by + * David Turner, Robert Wilhelm, and Werner Lemberg. + * + * This file is part of the FreeType project, and may only be used, + * modified, and distributed under the terms of the FreeType project + * license, LICENSE.TXT. By continuing to use, modify, or distribute + * this file you indicate that you have read the license and + * understand and accept it fully. + * + */ + + +#include <ft2build.h> +#include FT_CONFIG_OPTIONS_H + + +#ifdef FT_DEBUG_LOGGING +#define DLG_STATIC +#include "dlg.c" +#else + /* ANSI C doesn't like empty source files */ + typedef int _dlg_dummy; +#endif + + +/* END */ diff --git a/src/dlg/rules.mk b/src/dlg/rules.mk new file mode 100644 index 000000000..a56dee6c2 --- /dev/null +++ b/src/dlg/rules.mk @@ -0,0 +1,70 @@ +# +# FreeType 2 dlg logging library configuration rules +# + + +# Copyright (C) 2020-2021 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# dlg logging library directory +# +DLG_DIR := $(SRC_DIR)/dlg + + +# compilation flags for the library +# +DLG_COMPILE := $(CC) $(ANSIFLAGS) \ + $I$(subst /,$(COMPILER_SEP),$(DLG_DIR)) \ + $(INCLUDE_FLAGS) \ + $(FT_CFLAGS) + + +# dlg logging library sources (i.e., C files) +# +DLG_SRC := $(DLG_DIR)/dlgwrap.c + +# dlg logging library headers +# +DLG_H := $(TOP_DIR)/include/dlg/dlg.h \ + $(TOP_DIR)/include/dlg/output.h + + +# dlg logging library object(s) +# +# DLG_OBJ_M is used during `multi' builds +# DLG_OBJ_S is used during `single' builds +# +DLG_OBJ_M := $(DLG_SRC:$(DLG_DIR)/%.c=$(OBJ_DIR)/%.$O) +DLG_OBJ_S := $(OBJ_DIR)/dlg.$O + +# dlg logging library source file for single build +# +DLG_SRC_S := $(DLG_DIR)/dlgwrap.c + + +# dlg logging library - single object +# +$(DLG_OBJ_S): $(DLG_SRC_S) $(DLG_SRC) $(FREETYPE_H) $(DLG_H) + $(DLG_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(DLG_SRC_S)) + + +# dlg logging library - multiple objects +# +$(OBJ_DIR)/%.$O: $(DLG_DIR)/%.c $(FREETYPE_H) $(DLG_H) + $(DLG_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main object lists +# +DLG_OBJS_S += $(DLG_OBJ_S) +DLG_OBJS_M += $(DLG_OBJ_M) + + +# EOF diff --git a/src/gxvalid/README b/src/gxvalid/README index 2a32bab20..7fb029628 100644 --- a/src/gxvalid/README +++ b/src/gxvalid/README @@ -518,7 +518,7 @@ gxvalid: TrueType GX validator ------------------------------------------------------------------------ -Copyright (C) 2004-2020 by +Copyright (C) 2004-2021 by suzuki toshiya, Masatake YAMATO, Red hat K.K., David Turner, Robert Wilhelm, and Werner Lemberg. diff --git a/src/gxvalid/gxvalid.c b/src/gxvalid/gxvalid.c index 683b8a697..309d51744 100644 --- a/src/gxvalid/gxvalid.c +++ b/src/gxvalid/gxvalid.c @@ -4,7 +4,7 @@ * * FreeType validator for TrueTypeGX/AAT tables (body only). * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * diff --git a/src/gxvalid/gxvalid.h b/src/gxvalid/gxvalid.h index ff2812da2..2c41c2866 100644 --- a/src/gxvalid/gxvalid.h +++ b/src/gxvalid/gxvalid.h @@ -4,7 +4,7 @@ * * TrueTypeGX/AAT table validation (specification only). * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * diff --git a/src/gxvalid/gxvbsln.c b/src/gxvalid/gxvbsln.c index ac58d4615..af69cb51d 100644 --- a/src/gxvalid/gxvbsln.c +++ b/src/gxvalid/gxvbsln.c @@ -4,7 +4,7 @@ * * TrueTypeGX/AAT bsln table validation (body). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * diff --git a/src/gxvalid/gxvcommn.c b/src/gxvalid/gxvcommn.c index ead0f24cd..18e42b0cd 100644 --- a/src/gxvalid/gxvcommn.c +++ b/src/gxvalid/gxvcommn.c @@ -4,7 +4,7 @@ * * TrueTypeGX/AAT common tables validation (body). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * @@ -46,16 +46,11 @@ /*************************************************************************/ /*************************************************************************/ - static int - gxv_compare_ushort_offset( FT_UShort* a, - FT_UShort* b ) + FT_COMPARE_DEF( int ) + gxv_compare_ushort_offset( const void* a, + const void* b ) { - if ( *a < *b ) - return -1; - else if ( *a > *b ) - return 1; - else - return 0; + return *(FT_UShort*)a - *(FT_UShort*)b; } @@ -78,7 +73,7 @@ buff[nmemb] = limit; ft_qsort( buff, ( nmemb + 1 ), sizeof ( FT_UShort ), - ( int(*)(const void*, const void*) )gxv_compare_ushort_offset ); + gxv_compare_ushort_offset ); if ( buff[nmemb] > limit ) FT_INVALID_OFFSET; @@ -111,13 +106,17 @@ /*************************************************************************/ /*************************************************************************/ - static int - gxv_compare_ulong_offset( FT_ULong* a, - FT_ULong* b ) + FT_COMPARE_DEF( int ) + gxv_compare_ulong_offset( const void* a, + const void* b ) { - if ( *a < *b ) + FT_ULong a_ = *(FT_ULong*)a; + FT_ULong b_ = *(FT_ULong*)b; + + + if ( a_ < b_ ) return -1; - else if ( *a > *b ) + else if ( a_ > b_ ) return 1; else return 0; @@ -143,7 +142,7 @@ buff[nmemb] = limit; ft_qsort( buff, ( nmemb + 1 ), sizeof ( FT_ULong ), - ( int(*)(const void*, const void*) )gxv_compare_ulong_offset ); + gxv_compare_ulong_offset ); if ( buff[nmemb] > limit ) FT_INVALID_OFFSET; @@ -439,7 +438,7 @@ GXV_LIMIT_CHECK( 2 ); if ( p + 2 >= limit ) /* some fonts have too-short fmt0 array */ { - GXV_TRACE(( "too short, glyphs %d - %d are missing\n", + GXV_TRACE(( "too short, glyphs %d - %ld are missing\n", i, gxvalid->face->num_glyphs )); GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); break; @@ -534,7 +533,7 @@ if ( lastGlyph < firstGlyph ) { - GXV_TRACE(( "reverse ordered range specification at unit %d:", + GXV_TRACE(( "reverse ordered range specification at unit %d:" " lastGlyph %d < firstGlyph %d ", unit, lastGlyph, firstGlyph )); GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); @@ -605,7 +604,7 @@ if ( lastGlyph < firstGlyph ) { - GXV_TRACE(( "reverse ordered range specification at unit %d:", + GXV_TRACE(( "reverse ordered range specification at unit %d:" " lastGlyph %d < firstGlyph %d ", unit, lastGlyph, firstGlyph )); GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); @@ -825,7 +824,7 @@ face = gxvalid->face; if ( face->num_glyphs < gid ) { - GXV_TRACE(( " gxv_glyphid_check() gid overflow: num_glyphs %d < %d\n", + GXV_TRACE(( " gxv_glyphid_check() gid overflow: num_glyphs %ld < %d\n", face->num_glyphs, gid )); GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); } @@ -1419,7 +1418,7 @@ GXV_NAME_ENTER( "XStateArray" ); GXV_TRACE(( "parse % 3d bytes by stateSize=% 3d maxClassID=% 3d\n", - (int)(*length_p), stateSize, (int)(maxClassID) )); + (int)(*length_p), (int)stateSize, (int)(maxClassID) )); /* * 2 states are predefined and must be described: @@ -1493,9 +1492,11 @@ state = (FT_UShort)( newState_idx / ( 1 + maxClassID ) ); if ( 0 != ( newState_idx % ( 1 + maxClassID ) ) ) { - FT_TRACE4(( "-> new state = %d (supposed)\n" - "but newState index 0x%04x is not aligned to %d-classes\n", - state, newState_idx, 1 + maxClassID )); + FT_TRACE4(( "-> new state = %d (supposed)\n", + state )); + FT_TRACE4(( "but newState index 0x%04x" + " is not aligned to %d-classes\n", + newState_idx, 1 + maxClassID )); GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); } @@ -1581,10 +1582,10 @@ stateArray = FT_NEXT_ULONG( p ); entryTable = FT_NEXT_ULONG( p ); - GXV_TRACE(( "nClasses =0x%08x\n", gxvalid->xstatetable.nClasses )); - GXV_TRACE(( "offset to classTable=0x%08x\n", classTable )); - GXV_TRACE(( "offset to stateArray=0x%08x\n", stateArray )); - GXV_TRACE(( "offset to entryTable=0x%08x\n", entryTable )); + GXV_TRACE(( "nClasses =0x%08lx\n", gxvalid->xstatetable.nClasses )); + GXV_TRACE(( "offset to classTable=0x%08lx\n", classTable )); + GXV_TRACE(( "offset to stateArray=0x%08lx\n", stateArray )); + GXV_TRACE(( "offset to entryTable=0x%08lx\n", entryTable )); if ( gxvalid->xstatetable.nClasses > 0xFFFFU ) FT_INVALID_DATA; diff --git a/src/gxvalid/gxvcommn.h b/src/gxvalid/gxvcommn.h index 59d149215..b79b64114 100644 --- a/src/gxvalid/gxvcommn.h +++ b/src/gxvalid/gxvcommn.h @@ -4,7 +4,7 @@ * * TrueTypeGX/AAT common tables validation (specification). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * @@ -61,8 +61,11 @@ FT_BEGIN_HEADER #undef GXV_LOAD_UNUSED_VARS /* debug purpose */ -#define IS_PARANOID_VALIDATION ( gxvalid->root->level >= FT_VALIDATE_PARANOID ) -#define GXV_SET_ERR_IF_PARANOID( err ) { if ( IS_PARANOID_VALIDATION ) ( err ); } +#define IS_PARANOID_VALIDATION \ + ( gxvalid->root->level >= FT_VALIDATE_PARANOID ) +#define GXV_SET_ERR_IF_PARANOID( err ) \ + do { if ( IS_PARANOID_VALIDATION ) ( err ); } while ( 0 ) + /*************************************************************************/ /*************************************************************************/ @@ -261,17 +264,17 @@ FT_BEGIN_HEADER } GXV_ValidatorRec; -#define GXV_TABLE_DATA( tag, field ) \ +#define GXV_TABLE_DATA( tag, field ) \ ( ( (GXV_ ## tag ## _Data)gxvalid->table_data )->field ) #undef FT_INVALID_ -#define FT_INVALID_( _error ) \ +#define FT_INVALID_( _error ) \ ft_validator_error( gxvalid->root, FT_THROW( _error ) ) -#define GXV_LIMIT_CHECK( _count ) \ - FT_BEGIN_STMNT \ +#define GXV_LIMIT_CHECK( _count ) \ + FT_BEGIN_STMNT \ if ( p + _count > ( limit? limit : gxvalid->root->limit ) ) \ - FT_INVALID_TOO_SHORT; \ + FT_INVALID_TOO_SHORT; \ FT_END_STMNT @@ -279,19 +282,19 @@ FT_BEGIN_HEADER #define GXV_INIT gxvalid->debug_indent = 0 -#define GXV_NAME_ENTER( name ) \ - FT_BEGIN_STMNT \ - gxvalid->debug_indent += 2; \ - FT_TRACE4(( "%*.s", gxvalid->debug_indent, 0 )); \ - FT_TRACE4(( "%s table\n", name )); \ +#define GXV_NAME_ENTER( name ) \ + FT_BEGIN_STMNT \ + gxvalid->debug_indent += 2; \ + FT_TRACE4(( "%*.s", gxvalid->debug_indent, "" )); \ + FT_TRACE4(( "%s table\n", name )); \ FT_END_STMNT #define GXV_EXIT gxvalid->debug_indent -= 2 -#define GXV_TRACE( s ) \ - FT_BEGIN_STMNT \ - FT_TRACE4(( "%*.s", gxvalid->debug_indent, 0 )); \ - FT_TRACE4( s ); \ +#define GXV_TRACE( s ) \ + FT_BEGIN_STMNT \ + FT_TRACE4(( "%*.s", gxvalid->debug_indent, "" )); \ + FT_TRACE4( s ); \ FT_END_STMNT #else /* !FT_DEBUG_LEVEL_TRACE */ diff --git a/src/gxvalid/gxverror.h b/src/gxvalid/gxverror.h index 5d8f0b680..d20d39568 100644 --- a/src/gxvalid/gxverror.h +++ b/src/gxvalid/gxverror.h @@ -4,7 +4,7 @@ * * TrueTypeGX/AAT validation module error codes (specification only). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * diff --git a/src/gxvalid/gxvfeat.c b/src/gxvalid/gxvfeat.c index 400ec8a3f..0a8e2f201 100644 --- a/src/gxvalid/gxvfeat.c +++ b/src/gxvalid/gxvfeat.c @@ -4,7 +4,7 @@ * * TrueTypeGX/AAT feat table validation (body). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * @@ -90,7 +90,7 @@ if ( feature >= gxv_feat_registry_length ) { - GXV_TRACE(( "feature number %d is out of range %d\n", + GXV_TRACE(( "feature number %d is out of range %lu\n", feature, gxv_feat_registry_length )); GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); goto Exit; diff --git a/src/gxvalid/gxvfeat.h b/src/gxvalid/gxvfeat.h index 435dcefb0..f6d28fa71 100644 --- a/src/gxvalid/gxvfeat.h +++ b/src/gxvalid/gxvfeat.h @@ -4,7 +4,7 @@ * * TrueTypeGX/AAT feat table validation (specification). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * diff --git a/src/gxvalid/gxvfgen.c b/src/gxvalid/gxvfgen.c index fe05a6f3a..b47cd0f7b 100644 --- a/src/gxvalid/gxvfgen.c +++ b/src/gxvalid/gxvfgen.c @@ -5,7 +5,7 @@ * Generate feature registry data for gxv `feat' validator. * This program is derived from gxfeatreg.c in gxlayout. * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * Masatake YAMATO and Redhat K.K. * * This file may only be used, diff --git a/src/gxvalid/gxvjust.c b/src/gxvalid/gxvjust.c index 3c7f1f953..ec289b8eb 100644 --- a/src/gxvalid/gxvjust.c +++ b/src/gxvalid/gxvjust.c @@ -4,7 +4,7 @@ * * TrueTypeGX/AAT just table validation (body). * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * @@ -78,7 +78,7 @@ return; GXV_TRACE(( "just table includes too large %s" - " GID=%d > %d (in maxp)\n", + " GID=%d > %ld (in maxp)\n", msg_tag, gid, gxvalid->face->num_glyphs )); GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); } @@ -140,7 +140,7 @@ count = FT_NEXT_ULONG( p ); for ( i = 0; i < count; i++ ) { - GXV_TRACE(( "validating wdc pair %d/%d\n", i + 1, count )); + GXV_TRACE(( "validating wdc pair %lu/%lu\n", i + 1, count )); gxv_just_wdp_entry_validate( p, limit, gxvalid ); p += gxvalid->subtable_length; } @@ -206,7 +206,8 @@ if ( lowerLimit >= upperLimit ) { GXV_TRACE(( "just table includes invalid range spec:" - " lowerLimit(%d) > upperLimit(%d)\n" )); + " lowerLimit(%ld) > upperLimit(%ld)\n", + lowerLimit, upperLimit )); GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); } @@ -294,14 +295,14 @@ gxvalid->subtable_length = (FT_ULong)( p - table ); if ( variantsAxis != 0x64756374L ) /* 'duct' */ - GXV_TRACE(( "variantsAxis 0x%08x is non default value", + GXV_TRACE(( "variantsAxis 0x%08lx is non default value", variantsAxis )); if ( minimumLimit > noStretchValue ) - GXV_TRACE(( "type4:minimumLimit 0x%08x > noStretchValue 0x%08x\n", + GXV_TRACE(( "type4:minimumLimit 0x%08lx > noStretchValue 0x%08lx\n", minimumLimit, noStretchValue )); else if ( noStretchValue > maximumLimit ) - GXV_TRACE(( "type4:noStretchValue 0x%08x > maximumLimit 0x%08x\n", + GXV_TRACE(( "type4:noStretchValue 0x%08lx > maximumLimit 0x%08lx\n", noStretchValue, maximumLimit )); else if ( !IS_PARANOID_VALIDATION ) return; @@ -389,7 +390,7 @@ GXV_LIMIT_CHECK( 4 ); actionCount = FT_NEXT_ULONG( p ); - GXV_TRACE(( "actionCount = %d\n", actionCount )); + GXV_TRACE(( "actionCount = %lu\n", actionCount )); for ( i = 0; i < actionCount; i++ ) { @@ -514,14 +515,14 @@ coverage = FT_NEXT_USHORT( p ); subFeatureFlags = FT_NEXT_ULONG( p ); - GXV_TRACE(( " justClassTable: coverage = 0x%04x (%s) ", coverage )); + GXV_TRACE(( " justClassTable: coverage = 0x%04x ", coverage )); if ( ( coverage & 0x4000 ) == 0 ) GXV_TRACE(( "ascending\n" )); else GXV_TRACE(( "descending\n" )); if ( subFeatureFlags ) - GXV_TRACE(( " justClassTable: nonzero value (0x%08x)" + GXV_TRACE(( " justClassTable: nonzero value (0x%08lx)" " in unused subFeatureFlags\n", subFeatureFlags )); gxvalid->statetable.optdata = NULL; @@ -684,7 +685,7 @@ /* Version 1.0 (always:2000) */ - GXV_TRACE(( " (version = 0x%08x)\n", version )); + GXV_TRACE(( " (version = 0x%08lx)\n", version )); if ( version != 0x00010000UL ) FT_INVALID_FORMAT; diff --git a/src/gxvalid/gxvkern.c b/src/gxvalid/gxvkern.c index cc0b3dfcb..542e8bc09 100644 --- a/src/gxvalid/gxvkern.c +++ b/src/gxvalid/gxvkern.c @@ -4,7 +4,7 @@ * * TrueTypeGX/AAT kern table validation (body). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * @@ -487,7 +487,7 @@ if ( gxvalid->face->num_glyphs != glyphCount ) { - GXV_TRACE(( "maxGID=%d, but glyphCount=%d\n", + GXV_TRACE(( "maxGID=%ld, but glyphCount=%d\n", gxvalid->face->num_glyphs, glyphCount )); GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); } @@ -745,7 +745,7 @@ #ifdef GXV_LOAD_TRACE_VARS FT_UShort version = 0; /* MS only: subtable version, unused */ #endif - FT_ULong length; /* MS: 16bit, Apple: 32bit*/ + FT_ULong length; /* MS: 16bit, Apple: 32bit */ FT_UShort coverage; #ifdef GXV_LOAD_TRACE_VARS FT_UShort tupleIndex = 0; /* Apple only */ @@ -772,7 +772,7 @@ tupleIndex = 0; #endif GXV_TRACE(( "Subtable version = %d\n", version )); - GXV_TRACE(( "Subtable length = %d\n", length )); + GXV_TRACE(( "Subtable length = %lu\n", length )); break; case KERN_DIALECT_APPLE: @@ -783,7 +783,7 @@ #ifdef GXV_LOAD_TRACE_VARS tupleIndex = 0; #endif - GXV_TRACE(( "Subtable length = %d\n", length )); + GXV_TRACE(( "Subtable length = %lu\n", length )); if ( KERN_IS_NEW( gxvalid ) ) { @@ -800,7 +800,7 @@ default: length = u16[1]; GXV_TRACE(( "cannot detect subtable dialect, " - "just skip %d byte\n", length )); + "just skip %lu byte\n", length )); goto Exit; } @@ -884,7 +884,7 @@ for ( i = 0; i < nTables; i++ ) { - GXV_TRACE(( "validating subtable %d/%d\n", i, nTables )); + GXV_TRACE(( "validating subtable %d/%lu\n", i, nTables )); /* p should be 32bit-aligned? */ gxv_kern_subtable_validate( p, 0, gxvalid ); p += gxvalid->subtable_length; diff --git a/src/gxvalid/gxvlcar.c b/src/gxvalid/gxvlcar.c index 82ac1907a..9db839ba8 100644 --- a/src/gxvalid/gxvlcar.c +++ b/src/gxvalid/gxvlcar.c @@ -4,7 +4,7 @@ * * TrueTypeGX/AAT lcar table validation (body). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * diff --git a/src/gxvalid/gxvmod.c b/src/gxvalid/gxvmod.c index a467e8713..1a11426cc 100644 --- a/src/gxvalid/gxvmod.c +++ b/src/gxvalid/gxvmod.c @@ -4,7 +4,7 @@ * * FreeType's TrueTypeGX/AAT validation module implementation (body). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * @@ -62,7 +62,7 @@ if ( error ) goto Exit; - if ( FT_ALLOC( *table, *table_len ) ) + if ( FT_QALLOC( *table, *table_len ) ) goto Exit; error = FT_Load_Sfnt_Table( face, tag, 0, *table, table_len ); @@ -76,27 +76,31 @@ FT_Byte* volatile _sfnt = NULL; \ FT_ULong len_ ## _sfnt = 0 -#define GXV_TABLE_LOAD( _sfnt ) \ - if ( ( FT_VALIDATE_ ## _sfnt ## _INDEX < table_count ) && \ - ( gx_flags & FT_VALIDATE_ ## _sfnt ) ) \ - { \ - error = gxv_load_table( face, TTAG_ ## _sfnt, \ - &_sfnt, &len_ ## _sfnt ); \ - if ( error ) \ - goto Exit; \ - } - -#define GXV_TABLE_VALIDATE( _sfnt ) \ - if ( _sfnt ) \ - { \ - ft_validator_init( &valid, _sfnt, _sfnt + len_ ## _sfnt, \ - FT_VALIDATE_DEFAULT ); \ - if ( ft_setjmp( valid.jump_buffer ) == 0 ) \ - gxv_ ## _sfnt ## _validate( _sfnt, face, &valid ); \ - error = valid.error; \ - if ( error ) \ - goto Exit; \ - } +#define GXV_TABLE_LOAD( _sfnt ) \ + FT_BEGIN_STMNT \ + if ( ( FT_VALIDATE_ ## _sfnt ## _INDEX < table_count ) && \ + ( gx_flags & FT_VALIDATE_ ## _sfnt ) ) \ + { \ + error = gxv_load_table( face, TTAG_ ## _sfnt, \ + &_sfnt, &len_ ## _sfnt ); \ + if ( error ) \ + goto Exit; \ + } \ + FT_END_STMNT + +#define GXV_TABLE_VALIDATE( _sfnt ) \ + FT_BEGIN_STMNT \ + if ( _sfnt ) \ + { \ + ft_validator_init( &valid, _sfnt, _sfnt + len_ ## _sfnt, \ + FT_VALIDATE_DEFAULT ); \ + if ( ft_setjmp( valid.jump_buffer ) == 0 ) \ + gxv_ ## _sfnt ## _validate( _sfnt, face, &valid ); \ + error = valid.error; \ + if ( error ) \ + goto Exit; \ + } \ + FT_END_STMNT #define GXV_TABLE_SET( _sfnt ) \ if ( FT_VALIDATE_ ## _sfnt ## _INDEX < table_count ) \ diff --git a/src/gxvalid/gxvmod.h b/src/gxvalid/gxvmod.h index f2982c96c..90e0c10a2 100644 --- a/src/gxvalid/gxvmod.h +++ b/src/gxvalid/gxvmod.h @@ -5,7 +5,7 @@ * FreeType's TrueTypeGX/AAT validation module implementation * (specification). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * diff --git a/src/gxvalid/gxvmort.c b/src/gxvalid/gxvmort.c index aae7f01a8..d0db7f4d2 100644 --- a/src/gxvalid/gxvmort.c +++ b/src/gxvalid/gxvmort.c @@ -4,7 +4,7 @@ * * TrueTypeGX/AAT mort table validation (body). * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * @@ -288,7 +288,7 @@ for ( i = 0; i < nChains; i++ ) { - GXV_TRACE(( "validating chain %d/%d\n", i + 1, nChains )); + GXV_TRACE(( "validating chain %lu/%lu\n", i + 1, nChains )); GXV_32BIT_ALIGNMENT_VALIDATE( p - table ); gxv_mort_chain_validate( p, limit, gxvalid ); p += gxvalid->subtable_length; diff --git a/src/gxvalid/gxvmort.h b/src/gxvalid/gxvmort.h index 7237c5825..de5ab4ef0 100644 --- a/src/gxvalid/gxvmort.h +++ b/src/gxvalid/gxvmort.h @@ -4,7 +4,7 @@ * * TrueTypeGX/AAT common definition for mort table (specification). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * diff --git a/src/gxvalid/gxvmort0.c b/src/gxvalid/gxvmort0.c index d452c1cca..0c695aa4c 100644 --- a/src/gxvalid/gxvmort0.c +++ b/src/gxvalid/gxvmort0.c @@ -5,7 +5,7 @@ * TrueTypeGX/AAT mort table validation * body for type0 (Indic Script Rearrangement) subtable. * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * diff --git a/src/gxvalid/gxvmort1.c b/src/gxvalid/gxvmort1.c index d743f89f6..0af22362f 100644 --- a/src/gxvalid/gxvmort1.c +++ b/src/gxvalid/gxvmort1.c @@ -5,7 +5,7 @@ * TrueTypeGX/AAT mort table validation * body for type1 (Contextual Substitution) subtable. * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * diff --git a/src/gxvalid/gxvmort2.c b/src/gxvalid/gxvmort2.c index 9e69e1269..73f418ea1 100644 --- a/src/gxvalid/gxvmort2.c +++ b/src/gxvalid/gxvmort2.c @@ -5,7 +5,7 @@ * TrueTypeGX/AAT mort table validation * body for type2 (Ligature Substitution) subtable. * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * @@ -152,7 +152,7 @@ GXV_32BIT_ALIGNMENT_VALIDATE( ligActionOffset ); if ( p < lat_base ) { - GXV_TRACE(( "too short offset 0x%04x: p < lat_base (%d byte rewind)\n", + GXV_TRACE(( "too short offset 0x%04x: p < lat_base (%ld byte rewind)\n", ligActionOffset, lat_base - p )); /* FontValidator, ftxvalidator, ftxdumperfuser warn but continue */ @@ -160,7 +160,7 @@ } else if ( lat_limit < p ) { - GXV_TRACE(( "too large offset 0x%04x: lat_limit < p (%d byte overrun)\n", + GXV_TRACE(( "too large offset 0x%04x: lat_limit < p (%ld byte overrun)\n", ligActionOffset, p - lat_limit )); /* FontValidator, ftxvalidator, ftxdumperfuser warn but continue */ @@ -187,17 +187,17 @@ offset = lig_action & 0x3FFFFFFFUL; if ( offset * 2 < optdata->ligatureTable ) { - GXV_TRACE(( "too short offset 0x%08x:" - " 2 x offset < ligatureTable (%d byte rewind)\n", + GXV_TRACE(( "too short offset 0x%08lx:" + " 2 x offset < ligatureTable (%lu byte rewind)\n", offset, optdata->ligatureTable - offset * 2 )); GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); } else if ( offset * 2 > optdata->ligatureTable + optdata->ligatureTable_length ) { - GXV_TRACE(( "too long offset 0x%08x:" + GXV_TRACE(( "too long offset 0x%08lx:" " 2 x offset > ligatureTable + ligatureTable_length" - " (%d byte overrun)\n", + " (%lu byte overrun)\n", offset, optdata->ligatureTable + optdata->ligatureTable_length - offset * 2 )); diff --git a/src/gxvalid/gxvmort4.c b/src/gxvalid/gxvmort4.c index 4584d204c..1b0dd3eda 100644 --- a/src/gxvalid/gxvmort4.c +++ b/src/gxvalid/gxvmort4.c @@ -5,7 +5,7 @@ * TrueTypeGX/AAT mort table validation * body for type4 (Non-Contextual Glyph Substitution) subtable. * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * diff --git a/src/gxvalid/gxvmort5.c b/src/gxvalid/gxvmort5.c index a15a24fe6..cfbf31208 100644 --- a/src/gxvalid/gxvmort5.c +++ b/src/gxvalid/gxvmort5.c @@ -5,7 +5,7 @@ * TrueTypeGX/AAT mort table validation * body for type5 (Contextual Glyph Insertion) subtable. * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * @@ -63,7 +63,7 @@ *GXV_mort_subtable_type5_StateOptRecData; - FT_LOCAL_DEF( void ) + static void gxv_mort_subtable_type5_subtable_setup( FT_UShort table_size, FT_UShort classTable, FT_UShort stateArray, diff --git a/src/gxvalid/gxvmorx.c b/src/gxvalid/gxvmorx.c index 754d9f8bf..babff5186 100644 --- a/src/gxvalid/gxvmorx.c +++ b/src/gxvalid/gxvmorx.c @@ -4,7 +4,7 @@ * * TrueTypeGX/AAT morx table validation (body). * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * @@ -84,7 +84,7 @@ p += 4; #endif - GXV_TRACE(( "validating chain subtable %d/%d (%d bytes)\n", + GXV_TRACE(( "validating chain subtable %d/%d (%lu bytes)\n", i + 1, nSubtables, length )); type = coverage & 0x0007; @@ -99,7 +99,7 @@ func = fmt_funcs_table[type]; if ( !func ) - GXV_TRACE(( "morx type %d is reserved\n", type )); + GXV_TRACE(( "morx type %lu is reserved\n", type )); func( p, p + rest, gxvalid ); @@ -186,7 +186,7 @@ for ( i = 0; i < nChains; i++ ) { - GXV_TRACE(( "validating chain %d/%d\n", i + 1, nChains )); + GXV_TRACE(( "validating chain %lu/%lu\n", i + 1, nChains )); GXV_32BIT_ALIGNMENT_VALIDATE( p - table ); gxv_morx_chain_validate( p, limit, gxvalid ); p += gxvalid->subtable_length; diff --git a/src/gxvalid/gxvmorx.h b/src/gxvalid/gxvmorx.h index f747b1d63..f155f1846 100644 --- a/src/gxvalid/gxvmorx.h +++ b/src/gxvalid/gxvmorx.h @@ -4,7 +4,7 @@ * * TrueTypeGX/AAT common definition for morx table (specification). * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * diff --git a/src/gxvalid/gxvmorx0.c b/src/gxvalid/gxvmorx0.c index 5a42e552e..e93cea9cc 100644 --- a/src/gxvalid/gxvmorx0.c +++ b/src/gxvalid/gxvmorx0.c @@ -5,7 +5,7 @@ * TrueTypeGX/AAT morx table validation * body for type0 (Indic Script Rearrangement) subtable. * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * diff --git a/src/gxvalid/gxvmorx1.c b/src/gxvalid/gxvmorx1.c index 9f8b69067..d380f8d1a 100644 --- a/src/gxvalid/gxvmorx1.c +++ b/src/gxvalid/gxvmorx1.c @@ -5,7 +5,7 @@ * TrueTypeGX/AAT morx table validation * body for type1 (Contextual Substitution) subtable. * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * diff --git a/src/gxvalid/gxvmorx2.c b/src/gxvalid/gxvmorx2.c index 98b5c49c2..e7e008f06 100644 --- a/src/gxvalid/gxvmorx2.c +++ b/src/gxvalid/gxvmorx2.c @@ -5,7 +5,7 @@ * TrueTypeGX/AAT morx table validation * body for type2 (Ligature Substitution) subtable. * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * @@ -72,11 +72,11 @@ optdata->componentTable = FT_NEXT_ULONG( p ); optdata->ligatureTable = FT_NEXT_ULONG( p ); - GXV_TRACE(( "offset to ligActionTable=0x%08x\n", + GXV_TRACE(( "offset to ligActionTable=0x%08lx\n", optdata->ligActionTable )); - GXV_TRACE(( "offset to componentTable=0x%08x\n", + GXV_TRACE(( "offset to componentTable=0x%08lx\n", optdata->componentTable )); - GXV_TRACE(( "offset to ligatureTable=0x%08x\n", + GXV_TRACE(( "offset to ligatureTable=0x%08lx\n", optdata->ligatureTable )); } @@ -116,19 +116,19 @@ gxv_set_length_by_ulong_offset( o, l, buff, 6, table_size, gxvalid ); - GXV_TRACE(( "classTable: offset=0x%08x length=0x%08x\n", + GXV_TRACE(( "classTable: offset=0x%08lx length=0x%08lx\n", classTable, *classTable_length_p )); - GXV_TRACE(( "stateArray: offset=0x%08x length=0x%08x\n", + GXV_TRACE(( "stateArray: offset=0x%08lx length=0x%08lx\n", stateArray, *stateArray_length_p )); - GXV_TRACE(( "entryTable: offset=0x%08x length=0x%08x\n", + GXV_TRACE(( "entryTable: offset=0x%08lx length=0x%08lx\n", entryTable, *entryTable_length_p )); - GXV_TRACE(( "ligActionTable: offset=0x%08x length=0x%08x\n", + GXV_TRACE(( "ligActionTable: offset=0x%08lx length=0x%08lx\n", optdata->ligActionTable, optdata->ligActionTable_length )); - GXV_TRACE(( "componentTable: offset=0x%08x length=0x%08x\n", + GXV_TRACE(( "componentTable: offset=0x%08lx length=0x%08lx\n", optdata->componentTable, optdata->componentTable_length )); - GXV_TRACE(( "ligatureTable: offset=0x%08x length=0x%08x\n", + GXV_TRACE(( "ligatureTable: offset=0x%08lx length=0x%08lx\n", optdata->ligatureTable, optdata->ligatureTable_length )); @@ -157,12 +157,12 @@ if ( p < lat_base ) { - GXV_TRACE(( "p < lat_base (%d byte rewind)\n", lat_base - p )); + GXV_TRACE(( "p < lat_base (%ld byte rewind)\n", lat_base - p )); FT_INVALID_OFFSET; } else if ( lat_limit < p ) { - GXV_TRACE(( "lat_limit < p (%d byte overrun)\n", p - lat_limit )); + GXV_TRACE(( "lat_limit < p (%ld byte overrun)\n", p - lat_limit )); FT_INVALID_OFFSET; } @@ -196,7 +196,7 @@ GXV_TRACE(( "ligature action table includes" " too negative offset moving all GID" - " below defined range: 0x%04x\n", + " below defined range: 0x%04lx\n", offset & 0xFFFFU )); GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); } @@ -207,14 +207,14 @@ GXV_TRACE(( "ligature action table includes" " too large offset moving all GID" - " over defined range: 0x%04x\n", + " over defined range: 0x%04lx\n", offset & 0xFFFFU )); GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); } GXV_TRACE(( "ligature action table includes" " invalid offset to add to 16-bit GID:" - " 0x%08x\n", offset )); + " 0x%08lx\n", offset )); GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); } } diff --git a/src/gxvalid/gxvmorx4.c b/src/gxvalid/gxvmorx4.c index 857e4d4eb..e632e8d42 100644 --- a/src/gxvalid/gxvmorx4.c +++ b/src/gxvalid/gxvmorx4.c @@ -5,7 +5,7 @@ * TrueTypeGX/AAT morx table validation * body for "morx" type4 (Non-Contextual Glyph Substitution) subtable. * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * diff --git a/src/gxvalid/gxvmorx5.c b/src/gxvalid/gxvmorx5.c index 7ceba077a..5ad33976d 100644 --- a/src/gxvalid/gxvmorx5.c +++ b/src/gxvalid/gxvmorx5.c @@ -5,7 +5,7 @@ * TrueTypeGX/AAT morx table validation * body for type5 (Contextual Glyph Insertion) subtable. * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * diff --git a/src/gxvalid/gxvopbd.c b/src/gxvalid/gxvopbd.c index a398fe097..7a2feab46 100644 --- a/src/gxvalid/gxvopbd.c +++ b/src/gxvalid/gxvopbd.c @@ -4,7 +4,7 @@ * * TrueTypeGX/AAT opbd table validation (body). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * @@ -188,7 +188,7 @@ /* only 0x00010000 is defined (1996) */ - GXV_TRACE(( "(version=0x%08x)\n", version )); + GXV_TRACE(( "(version=0x%08lx)\n", version )); if ( 0x00010000UL != version ) FT_INVALID_FORMAT; diff --git a/src/gxvalid/gxvprop.c b/src/gxvalid/gxvprop.c index bee8bab97..98cd36884 100644 --- a/src/gxvalid/gxvprop.c +++ b/src/gxvalid/gxvprop.c @@ -4,7 +4,7 @@ * * TrueTypeGX/AAT prop table validation (body). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * @@ -283,7 +283,7 @@ format = FT_NEXT_USHORT( p ); defaultProp = FT_NEXT_USHORT( p ); - GXV_TRACE(( " version 0x%08x\n", version )); + GXV_TRACE(( " version 0x%08lx\n", version )); GXV_TRACE(( " format 0x%04x\n", format )); GXV_TRACE(( " defaultProp 0x%04x\n", defaultProp )); @@ -309,7 +309,7 @@ if ( format == 0 ) { FT_TRACE3(( "(format 0, no per-glyph properties, " - "remaining %d bytes are skipped)", limit - p )); + "remaining %ld bytes are skipped)", limit - p )); goto Exit; } diff --git a/src/gxvalid/gxvtrak.c b/src/gxvalid/gxvtrak.c index 58a631c9e..c1ed92872 100644 --- a/src/gxvalid/gxvtrak.c +++ b/src/gxvalid/gxvtrak.c @@ -4,7 +4,7 @@ * * TrueTypeGX/AAT trak table validation (body). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * suzuki toshiya, Masatake YAMATO, Red Hat K.K., * David Turner, Robert Wilhelm, and Werner Lemberg. * @@ -130,7 +130,7 @@ p = table + j * ( 4 + 2 + 2 ); t = FT_NEXT_LONG( p ); if ( t == track ) - GXV_TRACE(( "duplicated entries found for track value 0x%x\n", + GXV_TRACE(( "duplicated entries found for track value 0x%lx\n", track )); } } @@ -243,7 +243,7 @@ vertOffset = FT_NEXT_USHORT( p ); reserved = FT_NEXT_USHORT( p ); - GXV_TRACE(( " (version = 0x%08x)\n", version )); + GXV_TRACE(( " (version = 0x%08lx)\n", version )); GXV_TRACE(( " (format = 0x%04x)\n", format )); GXV_TRACE(( " (horizOffset = 0x%04x)\n", horizOffset )); GXV_TRACE(( " (vertOffset = 0x%04x)\n", vertOffset )); diff --git a/src/gxvalid/module.mk b/src/gxvalid/module.mk index e7d408df9..efb9c9295 100644 --- a/src/gxvalid/module.mk +++ b/src/gxvalid/module.mk @@ -2,7 +2,7 @@ # FreeType 2 gxvalid module definition # -# Copyright (C) 2004-2020 by +# Copyright (C) 2004-2021 by # suzuki toshiya, Masatake YAMATO, Red Hat K.K., # David Turner, Robert Wilhelm, and Werner Lemberg. # diff --git a/src/gxvalid/rules.mk b/src/gxvalid/rules.mk index d55a4935e..8e0b45342 100644 --- a/src/gxvalid/rules.mk +++ b/src/gxvalid/rules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 2004-2020 by +# Copyright (C) 2004-2021 by # suzuki toshiya, Masatake YAMATO, Red Hat K.K., # David Turner, Robert Wilhelm, and Werner Lemberg. # diff --git a/src/gzip/ftgzip.c b/src/gzip/ftgzip.c index de7d0fdd5..8f98a7d17 100644 --- a/src/gzip/ftgzip.c +++ b/src/gzip/ftgzip.c @@ -8,7 +8,7 @@ * parse compressed PCF fonts, as found with many X11 server * distributions. * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -121,24 +121,29 @@ 'malloc/free' */ static voidpf - ft_gzip_alloc( FT_Memory memory, - uInt items, - uInt size ) + ft_gzip_alloc( voidpf opaque, + uInt items, + uInt size ) { - FT_ULong sz = (FT_ULong)size * items; + FT_Memory memory = (FT_Memory)opaque; + FT_ULong sz = (FT_ULong)size * items; FT_Error error; - FT_Pointer p = NULL; + FT_Pointer p = NULL; - (void)FT_ALLOC( p, sz ); + /* allocate and zero out */ + FT_MEM_ALLOC( p, sz ); return p; } static void - ft_gzip_free( FT_Memory memory, - voidpf address ) + ft_gzip_free( voidpf opaque, + voidpf address ) { + FT_Memory memory = (FT_Memory)opaque; + + FT_MEM_FREE( address ); } @@ -150,14 +155,14 @@ unsigned items, unsigned size ) { - return ft_gzip_alloc( (FT_Memory)opaque, items, size ); + return ft_gzip_alloc( opaque, items, size ); } local void zcfree( voidpf opaque, voidpf ptr ) { - ft_gzip_free( (FT_Memory)opaque, ptr ); + ft_gzip_free( opaque, ptr ); } #endif /* !SYSTEM_ZLIB && !USE_ZLIB_ZCALLOC */ @@ -304,8 +309,8 @@ } /* initialize zlib -- there is no zlib header in the compressed stream */ - zstream->zalloc = (alloc_func)ft_gzip_alloc; - zstream->zfree = (free_func) ft_gzip_free; + zstream->zalloc = ft_gzip_alloc; + zstream->zfree = ft_gzip_free; zstream->opaque = stream->memory; zstream->avail_in = 0; @@ -462,12 +467,13 @@ FT_ULong count ) { FT_Error error = FT_Err_Ok; - FT_ULong delta; for (;;) { - delta = (FT_ULong)( zip->limit - zip->cursor ); + FT_ULong delta = (FT_ULong)( zip->limit - zip->cursor ); + + if ( delta >= count ) delta = count; @@ -671,7 +677,7 @@ FT_Byte* zip_buff = NULL; - if ( !FT_ALLOC( zip_buff, zip_size ) ) + if ( !FT_QALLOC( zip_buff, zip_size ) ) { FT_ULong count; @@ -741,8 +747,8 @@ stream.next_out = output; stream.avail_out = (uInt)*output_len; - stream.zalloc = (alloc_func)ft_gzip_alloc; - stream.zfree = (free_func) ft_gzip_free; + stream.zalloc = ft_gzip_alloc; + stream.zfree = ft_gzip_free; stream.opaque = memory; /* This is a temporary fix and will be removed once the internal diff --git a/src/gzip/rules.mk b/src/gzip/rules.mk index 4ea823f8d..1a90ae8fc 100644 --- a/src/gzip/rules.mk +++ b/src/gzip/rules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 2002-2020 by +# Copyright (C) 2002-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/lzw/ftlzw.c b/src/lzw/ftlzw.c index ddb81e6e9..e112418ab 100644 --- a/src/lzw/ftlzw.c +++ b/src/lzw/ftlzw.c @@ -8,7 +8,7 @@ * be used to parse compressed PCF fonts, as found with many X11 server * distributions. * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * Albert Chin-A-Young. * * based on code in `src/gzip/ftgzip.c' @@ -383,7 +383,7 @@ stream->size = 0x7FFFFFFFL; /* don't know the real size! */ stream->pos = 0; - stream->base = 0; + stream->base = NULL; stream->read = ft_lzw_stream_io; stream->close = ft_lzw_stream_close; diff --git a/src/lzw/ftzopen.c b/src/lzw/ftzopen.c index 884d2ec74..8b5b357f3 100644 --- a/src/lzw/ftzopen.c +++ b/src/lzw/ftzopen.c @@ -8,7 +8,7 @@ * be used to parse compressed PCF fonts, as found with many X11 server * distributions. * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * David Turner. * * This file is part of the FreeType project, and may only be used, @@ -127,6 +127,7 @@ new_size = new_size + ( new_size >> 1 ) + 4; + /* if relocating to heap */ if ( state->stack == state->stack_0 ) { state->stack = NULL; @@ -142,9 +143,13 @@ return -1; } - if ( FT_RENEW_ARRAY( state->stack, old_size, new_size ) ) + if ( FT_QRENEW_ARRAY( state->stack, old_size, new_size ) ) return -1; + /* if relocating to heap */ + if ( old_size == 0 ) + FT_MEM_COPY( state->stack, state->stack_0, FT_LZW_DEFAULT_STACK_SIZE ); + state->stack_size = new_size; } return 0; diff --git a/src/lzw/ftzopen.h b/src/lzw/ftzopen.h index d8768f7b4..9ada742c7 100644 --- a/src/lzw/ftzopen.h +++ b/src/lzw/ftzopen.h @@ -8,7 +8,7 @@ * be used to parse compressed PCF fonts, as found with many X11 server * distributions. * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * David Turner. * * This file is part of the FreeType project, and may only be used, diff --git a/src/lzw/rules.mk b/src/lzw/rules.mk index 3468ee024..747cbdcca 100644 --- a/src/lzw/rules.mk +++ b/src/lzw/rules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 2004-2020 by +# Copyright (C) 2004-2021 by # Albert Chin-A-Young. # # based on `src/lzw/rules.mk' diff --git a/src/otvalid/module.mk b/src/otvalid/module.mk index 67b9820d8..300934920 100644 --- a/src/otvalid/module.mk +++ b/src/otvalid/module.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 2004-2020 by +# Copyright (C) 2004-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/otvalid/otvalid.c b/src/otvalid/otvalid.c index d640209f6..869233ce8 100644 --- a/src/otvalid/otvalid.c +++ b/src/otvalid/otvalid.c @@ -4,7 +4,7 @@ * * FreeType validator for OpenType tables (body only). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/otvalid/otvalid.h b/src/otvalid/otvalid.h index 8208ff011..f8ca454d6 100644 --- a/src/otvalid/otvalid.h +++ b/src/otvalid/otvalid.h @@ -4,7 +4,7 @@ * * OpenType table validation (specification only). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/otvalid/otvbase.c b/src/otvalid/otvbase.c index 250ae98ab..83f998cdb 100644 --- a/src/otvalid/otvbase.c +++ b/src/otvalid/otvbase.c @@ -4,7 +4,7 @@ * * OpenType BASE table validation (body). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/otvalid/otvcommn.c b/src/otvalid/otvcommn.c index faaa84687..40624bb15 100644 --- a/src/otvalid/otvcommn.c +++ b/src/otvalid/otvcommn.c @@ -4,7 +4,7 @@ * * OpenType common tables validation (body). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/otvalid/otvcommn.h b/src/otvalid/otvcommn.h index f9926034a..3b096ecca 100644 --- a/src/otvalid/otvcommn.h +++ b/src/otvalid/otvcommn.h @@ -4,7 +4,7 @@ * * OpenType common tables validation (specification). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -105,10 +105,11 @@ FT_BEGIN_HEADER FT_Byte* pp = (FT_Byte*)_size ## _p; \ \ \ - FT_TRACE3(( "\n" \ - "Invalid offset to optional table `%s'" \ - " set to zero.\n" \ - "\n", #_size )); \ + FT_TRACE3(( "\n" )); \ + FT_TRACE3(( "Invalid offset to optional table `%s'" \ + " set to zero.\n", \ + #_size )); \ + FT_TRACE3(( "\n" )); \ \ _size = pp[0] = pp[1] = 0; \ } \ @@ -127,10 +128,11 @@ FT_BEGIN_HEADER FT_Byte* pp = (FT_Byte*)_size ## _p; \ \ \ - FT_TRACE3(( "\n" \ - "Invalid offset to optional table `%s'" \ - " set to zero.\n" \ - "\n", #_size )); \ + FT_TRACE3(( "\n" )); \ + FT_TRACE3(( "Invalid offset to optional table `%s'" \ + " set to zero.\n", \ + #_size )); \ + FT_TRACE3(( "\n" )); \ \ _size = pp[0] = pp[1] = pp[2] = pp[3] = 0; \ } \ @@ -178,24 +180,24 @@ FT_BEGIN_HEADER #define OTV_ENTER \ FT_BEGIN_STMNT \ otvalid->debug_indent += 2; \ - FT_TRACE4(( "%*.s", otvalid->debug_indent, 0 )); \ + FT_TRACE4(( "%*.s", otvalid->debug_indent, "" )); \ FT_TRACE4(( "%s table\n", \ otvalid->debug_function_name[otvalid->nesting_level] )); \ FT_END_STMNT -#define OTV_NAME_ENTER( name ) \ - FT_BEGIN_STMNT \ - otvalid->debug_indent += 2; \ - FT_TRACE4(( "%*.s", otvalid->debug_indent, 0 )); \ - FT_TRACE4(( "%s table\n", name )); \ +#define OTV_NAME_ENTER( name ) \ + FT_BEGIN_STMNT \ + otvalid->debug_indent += 2; \ + FT_TRACE4(( "%*.s", otvalid->debug_indent, "" )); \ + FT_TRACE4(( "%s table\n", name )); \ FT_END_STMNT #define OTV_EXIT otvalid->debug_indent -= 2 -#define OTV_TRACE( s ) \ - FT_BEGIN_STMNT \ - FT_TRACE4(( "%*.s", otvalid->debug_indent, 0 )); \ - FT_TRACE4( s ); \ +#define OTV_TRACE( s ) \ + FT_BEGIN_STMNT \ + FT_TRACE4(( "%*.s", otvalid->debug_indent, "" )); \ + FT_TRACE4( s ); \ FT_END_STMNT #else /* !FT_DEBUG_LEVEL_TRACE */ diff --git a/src/otvalid/otverror.h b/src/otvalid/otverror.h index 979e9cbd9..3e23234f3 100644 --- a/src/otvalid/otverror.h +++ b/src/otvalid/otverror.h @@ -4,7 +4,7 @@ * * OpenType validation module error codes (specification only). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/otvalid/otvgdef.c b/src/otvalid/otvgdef.c index 88874b847..5a160a414 100644 --- a/src/otvalid/otvgdef.c +++ b/src/otvalid/otvgdef.c @@ -4,7 +4,7 @@ * * OpenType GDEF table validation (body). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/otvalid/otvgpos.c b/src/otvalid/otvgpos.c index 29d56f91e..e0d4e420d 100644 --- a/src/otvalid/otvgpos.c +++ b/src/otvalid/otvgpos.c @@ -4,7 +4,7 @@ * * OpenType GPOS table validation (body). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/otvalid/otvgpos.h b/src/otvalid/otvgpos.h index 06a03a0e6..176a68883 100644 --- a/src/otvalid/otvgpos.h +++ b/src/otvalid/otvgpos.h @@ -4,7 +4,7 @@ * * OpenType GPOS table validator (specification). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/otvalid/otvgsub.c b/src/otvalid/otvgsub.c index f0d563ba9..b426a1744 100644 --- a/src/otvalid/otvgsub.c +++ b/src/otvalid/otvgsub.c @@ -4,7 +4,7 @@ * * OpenType GSUB table validation (body). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/otvalid/otvjstf.c b/src/otvalid/otvjstf.c index 79de7b809..404dda88a 100644 --- a/src/otvalid/otvjstf.c +++ b/src/otvalid/otvjstf.c @@ -4,7 +4,7 @@ * * OpenType JSTF table validation (body). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/otvalid/otvmath.c b/src/otvalid/otvmath.c index dfdeaaba7..b4bfabb62 100644 --- a/src/otvalid/otvmath.c +++ b/src/otvalid/otvmath.c @@ -4,7 +4,7 @@ * * OpenType MATH table validation (body). * - * Copyright (C) 2007-2020 by + * Copyright (C) 2007-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * Written by George Williams. @@ -141,7 +141,7 @@ OTV_OPTIONAL_TABLE( DeviceTableOffset ); - /* OTV_NAME_ENTER( "MathKern" );*/ + /* OTV_NAME_ENTER( "MathKern" ); */ OTV_LIMIT_CHECK( 2 ); diff --git a/src/otvalid/otvmod.c b/src/otvalid/otvmod.c index 0188b2701..b7d674b5e 100644 --- a/src/otvalid/otvmod.c +++ b/src/otvalid/otvmod.c @@ -4,7 +4,7 @@ * * FreeType's OpenType validation module implementation (body). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -53,7 +53,7 @@ if ( error ) goto Exit; - if ( FT_ALLOC( *table, *table_len ) ) + if ( FT_QALLOC( *table, *table_len ) ) goto Exit; error = FT_Load_Sfnt_Table( face, tag, 0, *table, table_len ); @@ -94,7 +94,7 @@ */ if ( face->num_glyphs > 0xFFFFL ) { - FT_TRACE1(( "otv_validate: Invalid glyphs index (0x0000FFFF - 0x%08x) ", + FT_TRACE1(( "otv_validate: Invalid glyphs index (0x0000FFFF - 0x%08lx) ", face->num_glyphs )); FT_TRACE1(( "are not handled by OpenType tables\n" )); num_glyphs = 0xFFFF; diff --git a/src/otvalid/otvmod.h b/src/otvalid/otvmod.h index efd6da035..37c20e002 100644 --- a/src/otvalid/otvmod.h +++ b/src/otvalid/otvmod.h @@ -5,7 +5,7 @@ * FreeType's OpenType validation module implementation * (specification). * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/otvalid/rules.mk b/src/otvalid/rules.mk index 7f0169fd8..634a3506b 100644 --- a/src/otvalid/rules.mk +++ b/src/otvalid/rules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 2004-2020 by +# Copyright (C) 2004-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/pcf/pcfdrivr.c b/src/pcf/pcfdrivr.c index e9dd51752..2a40af9e9 100644 --- a/src/pcf/pcfdrivr.c +++ b/src/pcf/pcfdrivr.c @@ -606,7 +606,7 @@ THE SOFTWARE. if ( prop->value.l > 0x7FFFFFFFL || prop->value.l < ( -1 - 0x7FFFFFFFL ) ) { - FT_TRACE1(( "pcf_get_bdf_property:" + FT_TRACE2(( "pcf_get_bdf_property:" " too large integer 0x%lx is truncated\n", prop->value.l )); } @@ -705,7 +705,7 @@ THE SOFTWARE. #endif /* !PCF_CONFIG_OPTION_LONG_FAMILY_NAMES */ - FT_TRACE0(( "pcf_property_set: missing property `%s'\n", + FT_TRACE2(( "pcf_property_set: missing property `%s'\n", property_name )); return FT_THROW( Missing_Property ); } @@ -743,7 +743,7 @@ THE SOFTWARE. #endif /* !PCF_CONFIG_OPTION_LONG_FAMILY_NAMES */ - FT_TRACE0(( "pcf_property_get: missing property `%s'\n", + FT_TRACE2(( "pcf_property_get: missing property `%s'\n", property_name )); return FT_THROW( Missing_Property ); } diff --git a/src/pcf/pcfread.c b/src/pcf/pcfread.c index 8817682cd..e60a0a514 100644 --- a/src/pcf/pcfread.c +++ b/src/pcf/pcfread.c @@ -127,7 +127,7 @@ THE SOFTWARE. toc->count = FT_MIN( stream->size >> 4, 9 ); } - if ( FT_NEW_ARRAY( face->toc.tables, toc->count ) ) + if ( FT_QNEW_ARRAY( face->toc.tables, toc->count ) ) return error; tables = face->toc.tables; @@ -238,7 +238,7 @@ THE SOFTWARE. { for ( j = 0; j < sizeof ( tableNames ) / sizeof ( tableNames[0] ); j++ ) - if ( tables[i].type == (FT_UInt)( 1 << j ) ) + if ( tables[i].type == 1UL << j ) name = tableNames[j]; FT_TRACE4(( " %d: type=%s, format=0x%lX," @@ -501,8 +501,8 @@ THE SOFTWARE. if ( FT_READ_ULONG_LE( format ) ) goto Bail; - FT_TRACE4(( "pcf_get_properties:\n" - " format: 0x%lX (%s)\n", + FT_TRACE4(( "pcf_get_properties:\n" )); + FT_TRACE4(( " format: 0x%lX (%s)\n", format, PCF_BYTE_ORDER( format ) == MSBFirst ? "MSB" : "LSB" )); @@ -540,7 +540,7 @@ THE SOFTWARE. face->nprops = (int)nprops; - if ( FT_NEW_ARRAY( props, nprops ) ) + if ( FT_QNEW_ARRAY( props, nprops ) ) goto Bail; for ( i = 0; i < nprops; i++ ) @@ -607,13 +607,13 @@ THE SOFTWARE. } /* allocate one more byte so that we have a final null byte */ - if ( FT_NEW_ARRAY( strings, string_size + 1 ) ) + if ( FT_QALLOC( strings, string_size + 1 ) || + FT_STREAM_READ( strings, string_size ) ) goto Bail; - error = FT_Stream_Read( stream, (FT_Byte*)strings, string_size ); - if ( error ) - goto Bail; + strings[string_size] = '\0'; + /* zero out in case of failure */ if ( FT_NEW_ARRAY( properties, nprops ) ) goto Bail; @@ -697,8 +697,8 @@ THE SOFTWARE. if ( FT_READ_ULONG_LE( format ) ) goto Bail; - FT_TRACE4(( "pcf_get_metrics:\n" - " format: 0x%lX (%s, %s)\n", + FT_TRACE4(( "pcf_get_metrics:\n" )); + FT_TRACE4(( " format: 0x%lX (%s, %s)\n", format, PCF_BYTE_ORDER( format ) == MSBFirst ? "MSB" : "LSB", PCF_FORMAT_MATCH( format, PCF_COMPRESSED_METRICS ) ? @@ -767,7 +767,7 @@ THE SOFTWARE. face->nmetrics = nmetrics + 1; - if ( FT_NEW_ARRAY( face->metrics, face->nmetrics ) ) + if ( FT_QNEW_ARRAY( face->metrics, face->nmetrics ) ) return error; /* we handle glyph index 0 later on */ @@ -840,17 +840,16 @@ THE SOFTWARE. FT_Stream_ExitFrame( stream ); - FT_TRACE4(( "pcf_get_bitmaps:\n" - " format: 0x%lX\n" - " (%s, %s,\n" - " padding=%d bit%s, scanning=%d bit%s)\n", - format, + FT_TRACE4(( "pcf_get_bitmaps:\n" )); + FT_TRACE4(( " format: 0x%lX\n", format )); + FT_TRACE4(( " (%s, %s,\n", PCF_BYTE_ORDER( format ) == MSBFirst ? "most significant byte first" : "least significant byte first", PCF_BIT_ORDER( format ) == MSBFirst ? "most significant bit first" - : "least significant bit first", + : "least significant bit first" )); + FT_TRACE4(( " padding=%d bit%s, scanning=%d bit%s)\n", 8 << PCF_GLYPH_PAD_INDEX( format ), ( 8 << PCF_GLYPH_PAD_INDEX( format ) ) == 1 ? "" : "s", 8 << PCF_SCAN_UNIT_INDEX( format ), @@ -1001,8 +1000,8 @@ THE SOFTWARE. if ( FT_READ_ULONG_LE( format ) ) goto Bail; - FT_TRACE4(( "pcf_get_encodings:\n" - " format: 0x%lX (%s)\n", + FT_TRACE4(( "pcf_get_encodings:\n" )); + FT_TRACE4(( " format: 0x%lX (%s)\n", format, PCF_BYTE_ORDER( format ) == MSBFirst ? "MSB" : "LSB" )); @@ -1021,11 +1020,11 @@ THE SOFTWARE. goto Bail; } - FT_TRACE4(( " firstCol 0x%X, lastCol 0x%X\n" - " firstRow 0x%X, lastRow 0x%X\n" - " defaultChar 0x%X\n", - enc->firstCol, enc->lastCol, - enc->firstRow, enc->lastRow, + FT_TRACE4(( " firstCol 0x%X, lastCol 0x%X\n", + enc->firstCol, enc->lastCol )); + FT_TRACE4(( " firstRow 0x%X, lastRow 0x%X\n", + enc->firstRow, enc->lastRow )); + FT_TRACE4(( " defaultChar 0x%X\n", enc->defaultChar )); /* sanity checks; we limit numbers of rows and columns to 256 */ @@ -1088,8 +1087,8 @@ THE SOFTWARE. if ( defaultCharEncodingOffset == 0xFFFF ) { FT_TRACE0(( "pcf_get_encodings:" - " No glyph for default character,\n" - " " + " No glyph for default character,\n" )); + FT_TRACE0(( " " " setting it to the first glyph of the font\n" )); defaultCharEncodingOffset = 1; } @@ -1100,8 +1099,8 @@ THE SOFTWARE. if ( defaultCharEncodingOffset >= face->nmetrics ) { FT_TRACE0(( "pcf_get_encodings:" - " Invalid glyph index for default character,\n" - " " + " Invalid glyph index for default character,\n" )); + FT_TRACE0(( " " " setting it to the first glyph of the font\n" )); defaultCharEncodingOffset = 1; } @@ -1208,10 +1207,10 @@ THE SOFTWARE. if ( FT_READ_ULONG_LE( format ) ) goto Bail; - FT_TRACE4(( "pcf_get_accel%s:\n" - " format: 0x%lX (%s, %s)\n", + FT_TRACE4(( "pcf_get_accel%s:\n", type == PCF_BDF_ACCELERATORS ? " (getting BDF accelerators)" - : "", + : "" )); + FT_TRACE4(( " format: 0x%lX (%s, %s)\n", format, PCF_BYTE_ORDER( format ) == MSBFirst ? "MSB" : "LSB", PCF_FORMAT_MATCH( format, PCF_ACCEL_W_INKBOUNDS ) ? @@ -1233,16 +1232,16 @@ THE SOFTWARE. } FT_TRACE5(( " noOverlap=%s, constantMetrics=%s," - " terminalFont=%s, constantWidth=%s\n" - " inkInside=%s, inkMetrics=%s, drawDirection=%s\n" - " fontAscent=%ld, fontDescent=%ld, maxOverlap=%ld\n", + " terminalFont=%s, constantWidth=%s\n", accel->noOverlap ? "yes" : "no", accel->constantMetrics ? "yes" : "no", accel->terminalFont ? "yes" : "no", - accel->constantWidth ? "yes" : "no", + accel->constantWidth ? "yes" : "no" )); + FT_TRACE5(( " inkInside=%s, inkMetrics=%s, drawDirection=%s\n", accel->inkInside ? "yes" : "no", accel->inkMetrics ? "yes" : "no", - accel->drawDirection ? "RTL" : "LTR", + accel->drawDirection ? "RTL" : "LTR" )); + FT_TRACE5(( " fontAscent=%ld, fontDescent=%ld, maxOverlap=%ld\n", accel->fontAscent, accel->fontDescent, accel->maxOverlap )); @@ -1369,7 +1368,7 @@ THE SOFTWARE. char* s; - if ( FT_ALLOC( face->style_name, len ) ) + if ( FT_QALLOC( face->style_name, len ) ) return error; s = face->style_name; @@ -1533,7 +1532,7 @@ THE SOFTWARE. { l += ft_strlen( foundry_prop->value.atom ) + 1; - if ( FT_NEW_ARRAY( root->family_name, l ) ) + if ( FT_QALLOC( root->family_name, l ) ) goto Exit; ft_strcpy( root->family_name, foundry_prop->value.atom ); @@ -1542,7 +1541,7 @@ THE SOFTWARE. } else { - if ( FT_NEW_ARRAY( root->family_name, l ) ) + if ( FT_QALLOC( root->family_name, l ) ) goto Exit; ft_strcpy( root->family_name, prop->value.atom ); @@ -1566,7 +1565,7 @@ THE SOFTWARE. root->num_glyphs = (FT_Long)face->nmetrics; root->num_fixed_sizes = 1; - if ( FT_NEW_ARRAY( root->available_sizes, 1 ) ) + if ( FT_NEW( root->available_sizes ) ) goto Exit; { @@ -1574,8 +1573,6 @@ THE SOFTWARE. FT_Short resolution_x = 0, resolution_y = 0; - FT_ZERO( bsize ); - /* for simplicity, we take absolute values of integer properties */ #if 0 @@ -1616,7 +1613,7 @@ THE SOFTWARE. else { /* this is a heuristical value */ - bsize->width = (FT_Short)FT_MulDiv( bsize->height, 2, 3 ); + bsize->width = ( bsize->height * 2 + 1 ) / 3; } prop = pcf_find_property( face, "POINT_SIZE" ); diff --git a/src/pfr/module.mk b/src/pfr/module.mk index 762353dda..4f49e12da 100644 --- a/src/pfr/module.mk +++ b/src/pfr/module.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 2002-2020 by +# Copyright (C) 2002-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/pfr/pfr.c b/src/pfr/pfr.c index 9264c77df..4058ad565 100644 --- a/src/pfr/pfr.c +++ b/src/pfr/pfr.c @@ -4,7 +4,7 @@ * * FreeType PFR driver component. * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/pfr/pfrcmap.c b/src/pfr/pfrcmap.c index ebc7b8439..6a7f57359 100644 --- a/src/pfr/pfrcmap.c +++ b/src/pfr/pfrcmap.c @@ -4,7 +4,7 @@ * * FreeType PFR cmap handling (body). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/pfr/pfrcmap.h b/src/pfr/pfrcmap.h index a6d920c30..17c02a2b4 100644 --- a/src/pfr/pfrcmap.h +++ b/src/pfr/pfrcmap.h @@ -4,7 +4,7 @@ * * FreeType PFR cmap handling (specification). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/pfr/pfrdrivr.c b/src/pfr/pfrdrivr.c index b14320875..16b8f7947 100644 --- a/src/pfr/pfrdrivr.c +++ b/src/pfr/pfrdrivr.c @@ -4,7 +4,7 @@ * * FreeType PFR driver interface (body). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/pfr/pfrdrivr.h b/src/pfr/pfrdrivr.h index 7646b4d1b..6ff16fea0 100644 --- a/src/pfr/pfrdrivr.h +++ b/src/pfr/pfrdrivr.h @@ -4,7 +4,7 @@ * * High-level Type PFR driver interface (specification). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/pfr/pfrerror.h b/src/pfr/pfrerror.h index 33460ef4f..255696efe 100644 --- a/src/pfr/pfrerror.h +++ b/src/pfr/pfrerror.h @@ -4,7 +4,7 @@ * * PFR error codes (specification only). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/pfr/pfrgload.c b/src/pfr/pfrgload.c index aa640c3b0..b400042a8 100644 --- a/src/pfr/pfrgload.c +++ b/src/pfr/pfrgload.c @@ -4,7 +4,7 @@ * * FreeType PFR glyph loader (body). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/pfr/pfrgload.h b/src/pfr/pfrgload.h index f356b4c75..b726d564f 100644 --- a/src/pfr/pfrgload.h +++ b/src/pfr/pfrgload.h @@ -4,7 +4,7 @@ * * FreeType PFR glyph loader (specification). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/pfr/pfrload.c b/src/pfr/pfrload.c index a2832e55c..a9c1e2834 100644 --- a/src/pfr/pfrload.c +++ b/src/pfr/pfrload.c @@ -4,7 +4,7 @@ * * FreeType PFR loader (body). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -565,7 +565,7 @@ if ( phy_font->font_id ) goto Exit; - if ( FT_ALLOC( phy_font->font_id, len + 1 ) ) + if ( FT_QALLOC( phy_font->font_id, len + 1 ) ) goto Exit; /* copy font ID name, and terminate it for safety */ @@ -601,7 +601,7 @@ PFR_CHECK( count * 2 ); - if ( FT_NEW_ARRAY( snaps, count ) ) + if ( FT_QNEW_ARRAY( snaps, count ) ) goto Exit; phy_font->vertical.stem_snaps = snaps; @@ -761,7 +761,7 @@ if ( ok ) { - if ( FT_ALLOC( result, len + 1 ) ) + if ( FT_QALLOC( result, len + 1 ) ) goto Exit; FT_MEM_COPY( result, p, len ); @@ -953,7 +953,7 @@ PFR_CHECK( count * 2 ); - if ( FT_NEW_ARRAY( phy_font->blue_values, count ) ) + if ( FT_QNEW_ARRAY( phy_font->blue_values, count ) ) goto Fail; for ( n = 0; n < count; n++ ) diff --git a/src/pfr/pfrload.h b/src/pfr/pfrload.h index 7615b9ce1..4f467d1ba 100644 --- a/src/pfr/pfrload.h +++ b/src/pfr/pfrload.h @@ -4,7 +4,7 @@ * * FreeType PFR loader (specification). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/pfr/pfrobjs.c b/src/pfr/pfrobjs.c index 918e7fd49..3080cb650 100644 --- a/src/pfr/pfrobjs.c +++ b/src/pfr/pfrobjs.c @@ -4,7 +4,7 @@ * * FreeType PFR object methods (body). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -83,7 +83,11 @@ /* load the header and check it */ error = pfr_header_load( &face->header, stream ); if ( error ) + { + FT_TRACE2(( " not a PFR font\n" )); + error = FT_THROW( Unknown_File_Format ); goto Exit; + } if ( !pfr_header_check( &face->header ) ) { @@ -213,7 +217,7 @@ FT_Memory memory = pfrface->stream->memory; - if ( FT_NEW_ARRAY( pfrface->available_sizes, count ) ) + if ( FT_QNEW_ARRAY( pfrface->available_sizes, count ) ) goto Exit; size = pfrface->available_sizes; diff --git a/src/pfr/pfrobjs.h b/src/pfr/pfrobjs.h index 808822f1c..70b05395b 100644 --- a/src/pfr/pfrobjs.h +++ b/src/pfr/pfrobjs.h @@ -4,7 +4,7 @@ * * FreeType PFR object methods (specification). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/pfr/pfrsbit.c b/src/pfr/pfrsbit.c index a6691e6d1..255fd5877 100644 --- a/src/pfr/pfrsbit.c +++ b/src/pfr/pfrsbit.c @@ -4,7 +4,7 @@ * * FreeType PFR bitmap loader (body). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -310,8 +310,8 @@ if ( lim > limit ) { FT_TRACE0(( "pfr_lookup_bitmap_data:" - " number of bitmap records too large,\n" - " " + " number of bitmap records too large,\n" )); + FT_TRACE0(( " " " thus ignoring all bitmaps in this strike\n" )); *flags &= ~PFR_BITMAP_VALID_CHARCODES; } @@ -328,8 +328,8 @@ if ( (FT_Long)code <= prev_code ) { FT_TRACE0(( "pfr_lookup_bitmap_data:" - " bitmap records are not sorted,\n" - " " + " bitmap records are not sorted,\n" )); + FT_TRACE0(( " " " thus ignoring all bitmaps in this strike\n" )); *flags &= ~PFR_BITMAP_VALID_CHARCODES; break; diff --git a/src/pfr/pfrsbit.h b/src/pfr/pfrsbit.h index 8cb0de0d2..f50d8013a 100644 --- a/src/pfr/pfrsbit.h +++ b/src/pfr/pfrsbit.h @@ -4,7 +4,7 @@ * * FreeType PFR bitmap loader (specification). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/pfr/pfrtypes.h b/src/pfr/pfrtypes.h index 06fb82d51..dc4fead70 100644 --- a/src/pfr/pfrtypes.h +++ b/src/pfr/pfrtypes.h @@ -4,7 +4,7 @@ * * FreeType PFR data structures (specification only). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -109,7 +109,7 @@ FT_BEGIN_HEADER #define PFR_BITMAP_2BYTE_SIZE 0x02U #define PFR_BITMAP_3BYTE_OFFSET 0x04U - /*not part of the specification but used for implementation */ + /* not part of the specification but used for implementation */ #define PFR_BITMAP_CHARCODES_VALIDATED 0x40U #define PFR_BITMAP_VALID_CHARCODES 0x80U diff --git a/src/pfr/rules.mk b/src/pfr/rules.mk index a1fe82baf..00c791f11 100644 --- a/src/pfr/rules.mk +++ b/src/pfr/rules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 2002-2020 by +# Copyright (C) 2002-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/psaux/afmparse.c b/src/psaux/afmparse.c index 2d6a0d9a1..0ad176051 100644 --- a/src/psaux/afmparse.c +++ b/src/psaux/afmparse.c @@ -4,7 +4,7 @@ * * AFM parser (body). * - * Copyright (C) 2006-2020 by + * Copyright (C) 2006-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -29,6 +29,16 @@ /************************************************************************** * + * The macro FT_COMPONENT is used in trace mode. It is an implicit + * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log + * messages during execution. + */ +#undef FT_COMPONENT +#define FT_COMPONENT afmparse + + + /************************************************************************** + * * AFM_Stream * * The use of AFM_Stream is largely inspired by parseAFM.[ch] from t1lib. @@ -586,21 +596,39 @@ static FT_Error afm_parse_track_kern( AFM_Parser parser ) { - AFM_FontInfo fi = parser->FontInfo; + AFM_FontInfo fi = parser->FontInfo; + AFM_Stream stream = parser->stream; AFM_TrackKern tk; - char* key; - FT_Offset len; - int n = -1; - FT_Int tmp; + + char* key; + FT_Offset len; + int n = -1; + FT_Int tmp; if ( afm_parser_read_int( parser, &tmp ) ) goto Fail; if ( tmp < 0 ) + { + FT_ERROR(( "afm_parse_track_kern: invalid number of track kerns\n" )); goto Fail; + } fi->NumTrackKern = (FT_UInt)tmp; + FT_TRACE3(( "afm_parse_track_kern: %u track kern%s expected\n", + fi->NumTrackKern, + fi->NumTrackKern == 1 ? "" : "s" )); + + /* Rough sanity check: The minimum line length of the `TrackKern` */ + /* command is 20 characters (including the EOL character). */ + if ( (FT_ULong)( stream->limit - stream->cursor ) / 20 < + fi->NumTrackKern ) + { + FT_ERROR(( "afm_parse_track_kern:" + " number of track kern entries exceeds stream size\n" )); + goto Fail; + } if ( fi->NumTrackKern ) { @@ -623,7 +651,10 @@ n++; if ( n >= (int)fi->NumTrackKern ) - goto Fail; + { + FT_ERROR(( "afm_parse_track_kern: too many track kern data\n" )); + goto Fail; + } tk = fi->TrackKerns + n; @@ -633,7 +664,12 @@ shared_vals[3].type = AFM_VALUE_TYPE_FIXED; shared_vals[4].type = AFM_VALUE_TYPE_FIXED; if ( afm_parser_read_vals( parser, shared_vals, 5 ) != 5 ) + { + FT_ERROR(( "afm_parse_track_kern:" + " insufficient number of parameters for entry %d\n", + n )); goto Fail; + } tk->degree = shared_vals[0].u.i; tk->min_ptsize = shared_vals[1].u.f; @@ -646,7 +682,19 @@ case AFM_TOKEN_ENDTRACKKERN: case AFM_TOKEN_ENDKERNDATA: case AFM_TOKEN_ENDFONTMETRICS: - fi->NumTrackKern = (FT_UInt)( n + 1 ); + tmp = n + 1; + if ( (FT_UInt)tmp != fi->NumTrackKern ) + { + FT_TRACE1(( "afm_parse_track_kern: %s%d track kern entr%s seen\n", + tmp == 0 ? "" : "only ", + tmp, + tmp == 1 ? "y" : "ies" )); + fi->NumTrackKern = (FT_UInt)tmp; + } + else + FT_TRACE3(( "afm_parse_track_kern: %d track kern entr%s seen\n", + tmp, + tmp == 1 ? "y" : "ies" )); return FT_Err_Ok; case AFM_TOKEN_UNKNOWN: @@ -667,7 +715,7 @@ /* compare two kerning pairs */ - FT_CALLBACK_DEF( int ) + FT_COMPARE_DEF( int ) afm_compare_kern_pairs( const void* a, const void* b ) { @@ -690,7 +738,8 @@ static FT_Error afm_parse_kern_pairs( AFM_Parser parser ) { - AFM_FontInfo fi = parser->FontInfo; + AFM_FontInfo fi = parser->FontInfo; + AFM_Stream stream = parser->stream; AFM_KernPair kp; char* key; FT_Offset len; @@ -702,9 +751,26 @@ goto Fail; if ( tmp < 0 ) + { + FT_ERROR(( "afm_parse_kern_pairs: invalid number of kern pairs\n" )); goto Fail; + } fi->NumKernPair = (FT_UInt)tmp; + FT_TRACE3(( "afm_parse_kern_pairs: %u kern pair%s expected\n", + fi->NumKernPair, + fi->NumKernPair == 1 ? "" : "s" )); + + /* Rough sanity check: The minimum line length of the `KP`, */ + /* `KPH`,`KPX`, and `KPY` commands is 10 characters (including */ + /* the EOL character). */ + if ( (FT_ULong)( stream->limit - stream->cursor ) / 10 < + fi->NumKernPair ) + { + FT_ERROR(( "afm_parse_kern_pairs:" + " number of kern pairs exceeds stream size\n" )); + goto Fail; + } if ( fi->NumKernPair ) { @@ -734,7 +800,10 @@ n++; if ( n >= (int)fi->NumKernPair ) + { + FT_ERROR(( "afm_parse_kern_pairs: too many kern pairs\n" )); goto Fail; + } kp = fi->KernPairs + n; @@ -744,7 +813,12 @@ shared_vals[3].type = AFM_VALUE_TYPE_INTEGER; r = afm_parser_read_vals( parser, shared_vals, 4 ); if ( r < 3 ) + { + FT_ERROR(( "afm_parse_kern_pairs:" + " insufficient number of parameters for entry %d\n", + n )); goto Fail; + } /* index values can't be negative */ kp->index1 = shared_vals[0].u.u; @@ -766,7 +840,20 @@ case AFM_TOKEN_ENDKERNPAIRS: case AFM_TOKEN_ENDKERNDATA: case AFM_TOKEN_ENDFONTMETRICS: - fi->NumKernPair = (FT_UInt)( n + 1 ); + tmp = n + 1; + if ( (FT_UInt)tmp != fi->NumKernPair ) + { + FT_TRACE1(( "afm_parse_kern_pairs: %s%d kern pair%s seen\n", + tmp == 0 ? "" : "only ", + tmp, + tmp == 1 ? "" : "s" )); + fi->NumKernPair = (FT_UInt)tmp; + } + else + FT_TRACE3(( "afm_parse_kern_pairs: %d kern pair%s seen\n", + tmp, + tmp == 1 ? "" : "s" )); + ft_qsort( fi->KernPairs, fi->NumKernPair, sizeof ( AFM_KernPairRec ), afm_compare_kern_pairs ); @@ -792,22 +879,43 @@ char* key; FT_Offset len; + int have_trackkern = 0; + int have_kernpairs = 0; + while ( ( key = afm_parser_next_key( parser, 1, &len ) ) != 0 ) { switch ( afm_tokenize( key, len ) ) { case AFM_TOKEN_STARTTRACKKERN: + if ( have_trackkern ) + { + FT_ERROR(( "afm_parse_kern_data:" + " invalid second horizontal track kern section\n" )); + goto Fail; + } + error = afm_parse_track_kern( parser ); if ( error ) return error; + + have_trackkern = 1; break; case AFM_TOKEN_STARTKERNPAIRS: case AFM_TOKEN_STARTKERNPAIRS0: + if ( have_kernpairs ) + { + FT_ERROR(( "afm_parse_kern_data:" + " invalid second horizontal kern pair section\n" )); + goto Fail; + } + error = afm_parse_kern_pairs( parser ); if ( error ) return error; + + have_kernpairs = 1; break; case AFM_TOKEN_ENDKERNDATA: diff --git a/src/psaux/afmparse.h b/src/psaux/afmparse.h index 16a3a3e90..44b05b2ca 100644 --- a/src/psaux/afmparse.h +++ b/src/psaux/afmparse.h @@ -4,7 +4,7 @@ * * AFM parser (specification). * - * Copyright (C) 2006-2020 by + * Copyright (C) 2006-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/psaux/cffdecode.c b/src/psaux/cffdecode.c index 3d2da1e03..29b68a8e4 100644 --- a/src/psaux/cffdecode.c +++ b/src/psaux/cffdecode.c @@ -4,7 +4,7 @@ * * PostScript CFF (Type 2) decoding routines (body). * - * Copyright (C) 2017-2020 by + * Copyright (C) 2017-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -1871,7 +1871,7 @@ case cff_op_put: { FT_Fixed val = args[0]; - FT_Int idx = (FT_Int)( args[1] >> 16 ); + FT_UInt idx = (FT_UInt)( args[1] >> 16 ); FT_TRACE4(( " put\n" )); @@ -1880,20 +1880,20 @@ /* didn't give a hard-coded size limit of the temporary */ /* storage array; instead, an argument of the */ /* `MultipleMaster' operator set the size */ - if ( idx >= 0 && idx < CFF_MAX_TRANS_ELEMENTS ) + if ( idx < CFF_MAX_TRANS_ELEMENTS ) decoder->buildchar[idx] = val; } break; case cff_op_get: { - FT_Int idx = (FT_Int)( args[0] >> 16 ); + FT_UInt idx = (FT_UInt)( args[0] >> 16 ); FT_Fixed val = 0; FT_TRACE4(( " get\n" )); - if ( idx >= 0 && idx < CFF_MAX_TRANS_ELEMENTS ) + if ( idx < CFF_MAX_TRANS_ELEMENTS ) val = decoder->buildchar[idx]; args[0] = val; @@ -1914,9 +1914,9 @@ /* this operator was removed from the Type2 specification */ /* in version 16-March-2000 */ { - FT_Int reg_idx = (FT_Int)args[0]; - FT_Int idx = (FT_Int)args[1]; - FT_Int count = (FT_Int)args[2]; + FT_UInt reg_idx = (FT_UInt)args[0]; + FT_UInt idx = (FT_UInt)args[1]; + FT_UInt count = (FT_UInt)args[2]; FT_TRACE4(( " load\n" )); @@ -1924,11 +1924,11 @@ /* since we currently don't handle interpolation of multiple */ /* master fonts, we store a vector [1 0 0 ...] in the */ /* temporary storage array regardless of the Registry index */ - if ( reg_idx >= 0 && reg_idx <= 2 && - idx >= 0 && idx < CFF_MAX_TRANS_ELEMENTS && - count >= 0 && count <= num_axes ) + if ( reg_idx <= 2 && + idx < CFF_MAX_TRANS_ELEMENTS && + count <= num_axes ) { - FT_Int end, i; + FT_UInt end, i; end = FT_MIN( idx + count, CFF_MAX_TRANS_ELEMENTS ); @@ -2153,7 +2153,7 @@ decoder->locals_bias ); - FT_TRACE4(( " callsubr (idx %d, entering level %d)\n", + FT_TRACE4(( " callsubr (idx %d, entering level %ld)\n", idx, zone - decoder->zones + 1 )); @@ -2197,7 +2197,7 @@ decoder->globals_bias ); - FT_TRACE4(( " callgsubr (idx %d, entering level %d)\n", + FT_TRACE4(( " callgsubr (idx %d, entering level %ld)\n", idx, zone - decoder->zones + 1 )); @@ -2236,7 +2236,7 @@ break; case cff_op_return: - FT_TRACE4(( " return (leaving level %d)\n", + FT_TRACE4(( " return (leaving level %ld)\n", decoder->zone - decoder->zones )); if ( decoder->zone <= decoder->zones ) @@ -2271,7 +2271,8 @@ } /* while ip < limit */ - FT_TRACE4(( "..end..\n\n" )); + FT_TRACE4(( "..end..\n" )); + FT_TRACE4(( "\n" )); Fail: return error; diff --git a/src/psaux/cffdecode.h b/src/psaux/cffdecode.h index 77a496269..b1314ed1c 100644 --- a/src/psaux/cffdecode.h +++ b/src/psaux/cffdecode.h @@ -4,7 +4,7 @@ * * PostScript CFF (Type 2) decoding routines (specification). * - * Copyright (C) 2017-2020 by + * Copyright (C) 2017-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/psaux/module.mk b/src/psaux/module.mk index 651db0142..06f7e72c1 100644 --- a/src/psaux/module.mk +++ b/src/psaux/module.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/psaux/psarrst.c b/src/psaux/psarrst.c index 8751d275f..70313d283 100644 --- a/src/psaux/psarrst.c +++ b/src/psaux/psarrst.c @@ -65,7 +65,6 @@ arrstack->error = error; arrstack->sizeItem = sizeItem; arrstack->allocated = 0; - arrstack->chunk = 10; /* chunks of 10 items */ arrstack->count = 0; arrstack->totalSize = 0; arrstack->ptr = NULL; @@ -110,7 +109,7 @@ FT_ASSERT( newSize > 0 ); /* avoid realloc with zero size */ - if ( !FT_REALLOC( arrstack->ptr, arrstack->totalSize, newSize ) ) + if ( !FT_QREALLOC( arrstack->ptr, arrstack->totalSize, newSize ) ) { arrstack->allocated = numElements; arrstack->totalSize = newSize; @@ -216,9 +215,9 @@ if ( arrstack->count == arrstack->allocated ) { - /* grow the buffer by one chunk */ + /* increase the buffer size */ if ( !cf2_arrstack_setNumElements( - arrstack, arrstack->allocated + arrstack->chunk ) ) + arrstack, arrstack->allocated * 2 + 16 ) ) { /* on error, ignore the push */ return; diff --git a/src/psaux/psarrst.h b/src/psaux/psarrst.h index 098617b25..31e5330cc 100644 --- a/src/psaux/psarrst.h +++ b/src/psaux/psarrst.h @@ -55,7 +55,6 @@ FT_BEGIN_HEADER size_t sizeItem; /* bytes per element */ size_t allocated; /* items allocated */ - size_t chunk; /* allocation increment in items */ size_t count; /* number of elements allocated */ size_t totalSize; /* total bytes allocated */ diff --git a/src/psaux/psaux.c b/src/psaux/psaux.c index f4282222a..2960c8b69 100644 --- a/src/psaux/psaux.c +++ b/src/psaux/psaux.c @@ -4,7 +4,7 @@ * * FreeType auxiliary PostScript driver component (body only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/psaux/psauxerr.h b/src/psaux/psauxerr.h index 8b9a958ae..e8ee29166 100644 --- a/src/psaux/psauxerr.h +++ b/src/psaux/psauxerr.h @@ -4,7 +4,7 @@ * * PS auxiliary module error codes (specification only). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/psaux/psauxmod.c b/src/psaux/psauxmod.c index e73ba2245..52da23365 100644 --- a/src/psaux/psauxmod.c +++ b/src/psaux/psauxmod.c @@ -4,7 +4,7 @@ * * FreeType auxiliary PostScript module implementation (body). * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/psaux/psauxmod.h b/src/psaux/psauxmod.h index a6bebe4b9..e3e806322 100644 --- a/src/psaux/psauxmod.h +++ b/src/psaux/psauxmod.h @@ -4,7 +4,7 @@ * * FreeType auxiliary PostScript module implementation (specification). * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/psaux/psblues.c b/src/psaux/psblues.c index 3878e9bde..f9c864fea 100644 --- a/src/psaux/psblues.c +++ b/src/psaux/psblues.c @@ -506,7 +506,8 @@ /* guarantee minimum of 1 pixel overshoot */ dsNew = FT_MIN( cf2_fixedRound( bottomHintEdge->dsCoord ), - blues->zone[i].dsFlatEdge - cf2_intToFixed( 1 ) ); + SUB_INT32( blues->zone[i].dsFlatEdge, + cf2_intToFixed( 1 ) ) ); } else diff --git a/src/psaux/psconv.c b/src/psaux/psconv.c index 4cf5cd5d8..c28d65df2 100644 --- a/src/psaux/psconv.c +++ b/src/psaux/psconv.c @@ -4,7 +4,7 @@ * * Some convenience conversions (body). * - * Copyright (C) 2006-2020 by + * Copyright (C) 2006-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/psaux/psconv.h b/src/psaux/psconv.h index 833e82736..cd91a7bb5 100644 --- a/src/psaux/psconv.h +++ b/src/psaux/psconv.h @@ -4,7 +4,7 @@ * * Some convenience conversions (specification). * - * Copyright (C) 2006-2020 by + * Copyright (C) 2006-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/psaux/psft.c b/src/psaux/psft.c index 41c16542c..ac72d8259 100644 --- a/src/psaux/psft.c +++ b/src/psaux/psft.c @@ -742,13 +742,13 @@ /* For ordinary fonts get the character data stored in the face record. */ { glyph_data.pointer = type1->charstrings[glyph_index]; - glyph_data.length = (FT_Int)type1->charstrings_len[glyph_index]; + glyph_data.length = type1->charstrings_len[glyph_index]; } if ( !error ) { FT_Byte* charstring_base = (FT_Byte*)glyph_data.pointer; - FT_ULong charstring_len = (FT_ULong)glyph_data.length; + FT_ULong charstring_len = glyph_data.length; FT_ASSERT( charstring_base + charstring_len >= charstring_base ); @@ -778,7 +778,7 @@ face = (T1_Face)decoder->builder.face; data.pointer = buf->start; - data.length = (FT_Int)( buf->end - buf->start ); + data.length = (FT_UInt)( buf->end - buf->start ); if ( face->root.internal->incremental_interface ) face->root.internal->incremental_interface->funcs->free_glyph_data( diff --git a/src/psaux/pshints.c b/src/psaux/pshints.c index ce8cfca71..ad472c98d 100644 --- a/src/psaux/pshints.c +++ b/src/psaux/pshints.c @@ -412,6 +412,12 @@ { FT_Bool isPair = cf2_hint_isPair( &hintmap->edge[i] ); + /* final amount to move edge or edge pair */ + CF2_Fixed move = 0; + + CF2_Fixed dsCoord_i; + CF2_Fixed dsCoord_j; + /* index of upper edge (same value for ghost hint) */ j = isPair ? i + 1 : i; @@ -422,11 +428,14 @@ FT_ASSERT( cf2_hint_isLocked( &hintmap->edge[i] ) == cf2_hint_isLocked( &hintmap->edge[j] ) ); + dsCoord_i = hintmap->edge[i].dsCoord; + dsCoord_j = hintmap->edge[j].dsCoord; + if ( !cf2_hint_isLocked( &hintmap->edge[i] ) ) { /* hint edge is not locked, we can adjust it */ - CF2_Fixed fracDown = cf2_fixedFraction( hintmap->edge[i].dsCoord ); - CF2_Fixed fracUp = cf2_fixedFraction( hintmap->edge[j].dsCoord ); + CF2_Fixed fracDown = cf2_fixedFraction( dsCoord_i ); + CF2_Fixed fracUp = cf2_fixedFraction( dsCoord_j ); /* calculate all four possibilities; moves down are negative */ CF2_Fixed downMoveDown = 0 - fracDown; @@ -443,9 +452,6 @@ /* smallest move down */ CF2_Fixed moveDown = FT_MAX( downMoveDown, upMoveDown ); - /* final amount to move edge or edge pair */ - CF2_Fixed move; - CF2_Fixed downMinCounter = CF2_MIN_COUNTER; CF2_Fixed upMinCounter = CF2_MIN_COUNTER; FT_Bool saveEdge = FALSE; @@ -467,16 +473,14 @@ /* is there room to move up? */ /* there is if we are at top of array or the next edge is at or */ /* beyond proposed move up? */ - if ( j >= hintmap->count - 1 || + if ( j >= hintmap->count - 1 || hintmap->edge[j + 1].dsCoord >= - ADD_INT32( hintmap->edge[j].dsCoord, - moveUp + upMinCounter ) ) + ADD_INT32( dsCoord_j, moveUp + upMinCounter ) ) { /* there is room to move up; is there also room to move down? */ - if ( i == 0 || + if ( i == 0 || hintmap->edge[i - 1].dsCoord <= - ADD_INT32( hintmap->edge[i].dsCoord, - moveDown - downMinCounter ) ) + ADD_INT32( dsCoord_i, moveDown - downMinCounter ) ) { /* move smaller absolute amount */ move = ( -moveDown < moveUp ) ? moveDown : moveUp; /* optimum */ @@ -487,10 +491,9 @@ else { /* is there room to move down? */ - if ( i == 0 || + if ( i == 0 || hintmap->edge[i - 1].dsCoord <= - ADD_INT32( hintmap->edge[i].dsCoord, - moveDown - downMinCounter ) ) + ADD_INT32( dsCoord_i, moveDown - downMinCounter ) ) { move = moveDown; /* true if non-optimum move */ @@ -524,17 +527,21 @@ } /* move the edge(s) */ - hintmap->edge[i].dsCoord = ADD_INT32( hintmap->edge[i].dsCoord, - move ); + hintmap->edge[i].dsCoord = ADD_INT32( dsCoord_i, move ); if ( isPair ) - hintmap->edge[j].dsCoord = ADD_INT32( hintmap->edge[j].dsCoord, - move ); + hintmap->edge[j].dsCoord = ADD_INT32( dsCoord_j, move ); } - /* assert there are no overlaps in device space */ + /* assert there are no overlaps in device space; */ + /* ignore tests if there was overflow (that is, if */ + /* operands have the same sign but the sum does not) */ FT_ASSERT( i == 0 || + ( ( dsCoord_i ^ move ) >= 0 && + ( dsCoord_i ^ hintmap->edge[i].dsCoord ) < 0 ) || hintmap->edge[i - 1].dsCoord <= hintmap->edge[i].dsCoord ); FT_ASSERT( i < j || + ( ( dsCoord_j ^ move ) >= 0 && + ( dsCoord_j ^ hintmap->edge[j].dsCoord ) < 0 ) || hintmap->edge[i].dsCoord <= hintmap->edge[j].dsCoord ); /* adjust the scales, avoiding divide by zero */ @@ -1022,10 +1029,17 @@ } } - FT_TRACE6(( "%s\n", initialMap ? "flags: [p]air [g]host [t]op" - " [b]ottom [L]ocked [S]ynthetic\n" - "Initial hintmap" - : "Hints:" )); +#ifdef FT_DEBUG_LEVEL_TRACE + if ( initialMap ) + { + FT_TRACE6(( "flags: [p]air [g]host [t]op" + " [b]ottom [L]ocked [S]ynthetic\n" )); + FT_TRACE6(( "Initial hintmap" )); + } + else + FT_TRACE6(( "Hints:" )); +#endif + cf2_hintmap_dump( hintmap ); /* diff --git a/src/psaux/psintrp.c b/src/psaux/psintrp.c index 519c69444..c550533a0 100644 --- a/src/psaux/psintrp.c +++ b/src/psaux/psintrp.c @@ -469,7 +469,7 @@ */ FT_LOCAL_DEF( void ) cf2_interpT2CharString( CF2_Font font, - CF2_Buffer buf, + const CF2_Buffer buf, CF2_OutlineCallbacks callbacks, const FT_Vector* translation, FT_Bool doingSeac, @@ -1340,9 +1340,9 @@ if ( decoder->glyph_names == 0 ) #endif /* FT_CONFIG_OPTION_INCREMENTAL */ { - FT_ERROR(( - "cf2_interpT2CharString: (Type 1 seac)" - " glyph names table not available in this font\n" )); + FT_ERROR(( "cf2_interpT2CharString:\n" )); + FT_ERROR(( " (Type 1 seac) glyph names table" + " not available in this font\n" )); lastError = FT_THROW( Invalid_Glyph_Format ); goto exit; } @@ -1368,9 +1368,9 @@ if ( bchar_index < 0 || achar_index < 0 ) { - FT_ERROR(( - "cf2_interpT2CharString: (Type 1 seac)" - " invalid seac character code arguments\n" )); + FT_ERROR(( "cf2_interpT2CharString:\n" )); + FT_ERROR(( " (Type 1 seac) invalid" + " seac character code arguments\n" )); lastError = FT_THROW( Invalid_Glyph_Format ); goto exit; } @@ -1670,7 +1670,13 @@ */ count = cf2_stack_count( opStack ); - FT_ASSERT( (CF2_UInt)arg_cnt <= count ); + if ( (CF2_UInt)arg_cnt > count ) + { + FT_ERROR(( "cf2_interpT2CharString (Type 1 mode):" + " stack underflow\n" )); + lastError = FT_THROW( Invalid_Glyph_Format ); + goto exit; + } opIdx += count - (CF2_UInt)arg_cnt; @@ -1893,18 +1899,17 @@ /* cvi( <idx> ) of BuildCharArray with */ /* WeightVector */ { - FT_Int idx; + FT_UInt idx; PS_Blend blend = decoder->blend; if ( arg_cnt != 1 || !blend ) goto Unexpected_OtherSubr; - idx = cf2_stack_popInt( opStack ); + idx = (FT_UInt)cf2_stack_popInt( opStack ); - if ( idx < 0 || - (FT_UInt)idx + blend->num_designs > - decoder->len_buildchar ) + if ( idx + blend->num_designs > + decoder->len_buildchar ) goto Unexpected_OtherSubr; ft_memcpy( &decoder->buildchar[idx], @@ -2004,17 +2009,16 @@ /* <val> <idx> 2 24 callothersubr */ /* ==> set BuildCharArray[cvi( <idx> )] = <val> */ { - CF2_Int idx; + CF2_UInt idx; PS_Blend blend = decoder->blend; if ( arg_cnt != 2 || !blend ) goto Unexpected_OtherSubr; - idx = cf2_stack_popInt( opStack ); + idx = (CF2_UInt)cf2_stack_popInt( opStack ); - if ( idx < 0 || - (FT_UInt)idx >= decoder->len_buildchar ) + if ( idx >= decoder->len_buildchar ) goto Unexpected_OtherSubr; decoder->buildchar[idx] = @@ -2027,17 +2031,16 @@ /* ==> push BuildCharArray[cvi( idx )] */ /* onto T1 stack */ { - CF2_Int idx; + CF2_UInt idx; PS_Blend blend = decoder->blend; if ( arg_cnt != 1 || !blend ) goto Unexpected_OtherSubr; - idx = cf2_stack_popInt( opStack ); + idx = (CF2_UInt)cf2_stack_popInt( opStack ); - if ( idx < 0 || - (FT_UInt)idx >= decoder->len_buildchar ) + if ( idx >= decoder->len_buildchar ) goto Unexpected_OtherSubr; cf2_stack_pushFixed( opStack, @@ -2179,29 +2182,29 @@ case cf2_escPUT: { CF2_F16Dot16 val; - CF2_Int idx; + CF2_UInt idx; FT_TRACE4(( " put\n" )); - idx = cf2_stack_popInt( opStack ); + idx = (CF2_UInt)cf2_stack_popInt( opStack ); val = cf2_stack_popFixed( opStack ); - if ( idx >= 0 && idx < CF2_STORAGE_SIZE ) + if ( idx < CF2_STORAGE_SIZE ) storage[idx] = val; } continue; /* do not clear the stack */ case cf2_escGET: { - CF2_Int idx; + CF2_UInt idx; FT_TRACE4(( " get\n" )); - idx = cf2_stack_popInt( opStack ); + idx = (CF2_UInt)cf2_stack_popInt( opStack ); - if ( idx >= 0 && idx < CF2_STORAGE_SIZE ) + if ( idx < CF2_STORAGE_SIZE ) cf2_stack_pushFixed( opStack, storage[idx] ); } continue; /* do not clear the stack */ diff --git a/src/psaux/psintrp.h b/src/psaux/psintrp.h index 669c09c0a..d8b9342ec 100644 --- a/src/psaux/psintrp.h +++ b/src/psaux/psintrp.h @@ -65,7 +65,7 @@ FT_BEGIN_HEADER FT_LOCAL( void ) cf2_interpT2CharString( CF2_Font font, - CF2_Buffer charstring, + const CF2_Buffer buf, CF2_OutlineCallbacks callbacks, const FT_Vector* translation, FT_Bool doingSeac, diff --git a/src/psaux/psobjs.c b/src/psaux/psobjs.c index defc4d4fc..30f501916 100644 --- a/src/psaux/psobjs.c +++ b/src/psaux/psobjs.c @@ -4,7 +4,7 @@ * * Auxiliary functions for PostScript fonts (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -251,7 +251,7 @@ if ( !old_base ) return; - if ( FT_ALLOC( table->block, table->cursor ) ) + if ( FT_QALLOC( table->block, table->cursor ) ) return; FT_MEM_COPY( table->block, old_base, table->cursor ); shift_elements( table, old_base ); @@ -595,10 +595,10 @@ if ( cur < limit && cur == parser->cursor ) { FT_ERROR(( "ps_parser_skip_PS_token:" - " current token is `%c' which is self-delimiting\n" - " " - " but invalid at this point\n", + " current token is `%c' which is self-delimiting\n", *cur )); + FT_ERROR(( " " + " but invalid at this point\n" )); error = FT_THROW( Invalid_File_Format ); } @@ -979,7 +979,7 @@ } len = (FT_UInt)( cur - *cursor ); - if ( cur >= limit || FT_ALLOC( result, len + 1 ) ) + if ( cur >= limit || FT_QALLOC( result, len + 1 ) ) return 0; /* now copy the string */ @@ -1175,8 +1175,8 @@ else { FT_ERROR(( "ps_parser_load_field:" - " expected a name or string\n" - " " + " expected a name or string\n" )); + FT_ERROR(( " " " but found token of type %d instead\n", token.type )); error = FT_THROW( Invalid_File_Format ); @@ -1193,7 +1193,7 @@ *(FT_String**)q = NULL; } - if ( FT_ALLOC( string, len + 1 ) ) + if ( FT_QALLOC( string, len + 1 ) ) goto Exit; FT_MEM_COPY( string, cur, len ); @@ -1248,7 +1248,7 @@ FT_UInt i; - if ( FT_NEW_ARRAY( temp, max_objects * 4 ) ) + if ( FT_QNEW_ARRAY( temp, max_objects * 4 ) ) goto Exit; for ( i = 0; i < 4; i++ ) @@ -1258,14 +1258,14 @@ if ( result < 0 || (FT_UInt)result < max_objects ) { FT_ERROR(( "ps_parser_load_field:" - " expected %d integer%s in the %s subarray\n" - " " - " of /FontBBox in the /Blend dictionary\n", + " expected %d integer%s in the %s subarray\n", max_objects, max_objects > 1 ? "s" : "", i == 0 ? "first" : ( i == 1 ? "second" : ( i == 2 ? "third" : "fourth" ) ) )); + FT_ERROR(( " " + " of /FontBBox in the /Blend dictionary\n" )); error = FT_THROW( Invalid_File_Format ); FT_FREE( temp ); diff --git a/src/psaux/psobjs.h b/src/psaux/psobjs.h index fdad672b6..99d16959a 100644 --- a/src/psaux/psobjs.h +++ b/src/psaux/psobjs.h @@ -4,7 +4,7 @@ * * Auxiliary functions for PostScript fonts (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/psaux/psstack.c b/src/psaux/psstack.c index 7ae5256ef..797486588 100644 --- a/src/psaux/psstack.c +++ b/src/psaux/psstack.c @@ -54,20 +54,18 @@ FT_Error* e, FT_UInt stackSize ) { - FT_Error error = FT_Err_Ok; /* for FT_NEW */ - + FT_Error error; /* for FT_QNEW */ CF2_Stack stack = NULL; - if ( FT_NEW( stack ) ) + if ( FT_QNEW( stack ) ) return NULL; - /* initialize the structure; FT_NEW zeroes it */ stack->memory = memory; stack->error = e; /* allocate the stack buffer */ - if ( FT_NEW_ARRAY( stack->buffer, stackSize ) ) + if ( FT_QNEW_ARRAY( stack->buffer, stackSize ) ) { FT_FREE( stack ); return NULL; diff --git a/src/psaux/rules.mk b/src/psaux/rules.mk index f49aecbc7..05439120d 100644 --- a/src/psaux/rules.mk +++ b/src/psaux/rules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/psaux/t1cmap.c b/src/psaux/t1cmap.c index e21e93ca2..3e7c577a1 100644 --- a/src/psaux/t1cmap.c +++ b/src/psaux/t1cmap.c @@ -4,7 +4,7 @@ * * Type 1 character map support (body). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/psaux/t1cmap.h b/src/psaux/t1cmap.h index 031796510..8f69600ca 100644 --- a/src/psaux/t1cmap.h +++ b/src/psaux/t1cmap.h @@ -4,7 +4,7 @@ * * Type 1 character map support (specification). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/psaux/t1decode.c b/src/psaux/t1decode.c index 2ed27ca19..7e65bde63 100644 --- a/src/psaux/t1decode.c +++ b/src/psaux/t1decode.c @@ -4,7 +4,7 @@ * * PostScript Type 1 decoding routines (body). * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -27,8 +27,11 @@ #include "psauxerr.h" + /* ensure proper sign extension */ -#define Fix2Int( f ) ( (FT_Int)(FT_Short)( (f) >> 16 ) ) +#define Fix2Int( f ) ( (FT_Int) (FT_Short)( (f) >> 16 ) ) +#define Fix2UInt( f ) ( (FT_UInt)(FT_Short)( (f) >> 16 ) ) + /************************************************************************** * @@ -517,7 +520,7 @@ #ifdef FT_DEBUG_LEVEL_TRACE if ( bol ) { - FT_TRACE5(( " (%d)", decoder->top - decoder->stack )); + FT_TRACE5(( " (%ld)", decoder->top - decoder->stack )); bol = FALSE; } #endif @@ -1025,16 +1028,16 @@ /* <val> <idx> 2 24 callothersubr */ /* ==> set BuildCharArray[cvi( <idx> )] = <val> */ { - FT_Int idx; + FT_UInt idx; PS_Blend blend = decoder->blend; if ( arg_cnt != 2 || !blend ) goto Unexpected_OtherSubr; - idx = Fix2Int( top[1] ); + idx = Fix2UInt( top[1] ); - if ( idx < 0 || (FT_UInt) idx >= decoder->len_buildchar ) + if ( idx >= decoder->len_buildchar ) goto Unexpected_OtherSubr; decoder->buildchar[idx] = top[0]; @@ -1046,16 +1049,16 @@ /* ==> push BuildCharArray[cvi( idx )] */ /* onto T1 stack */ { - FT_Int idx; + FT_UInt idx; PS_Blend blend = decoder->blend; if ( arg_cnt != 1 || !blend ) goto Unexpected_OtherSubr; - idx = Fix2Int( top[0] ); + idx = Fix2UInt( top[0] ); - if ( idx < 0 || (FT_UInt) idx >= decoder->len_buildchar ) + if ( idx >= decoder->len_buildchar ) goto Unexpected_OtherSubr; top[0] = decoder->buildchar[idx]; @@ -1162,9 +1165,9 @@ if ( top - decoder->stack != num_args ) FT_TRACE0(( "t1_decoder_parse_charstrings:" " too much operands on the stack" - " (seen %d, expected %d)\n", + " (seen %ld, expected %d)\n", top - decoder->stack, num_args )); - break; + break; } #endif /* FT_DEBUG_LEVEL_TRACE */ @@ -1209,7 +1212,7 @@ FT_TRACE4(( "BuildCharArray = [ " )); for ( i = 0; i < decoder->len_buildchar; i++ ) - FT_TRACE4(( "%d ", decoder->buildchar[i] )); + FT_TRACE4(( "%ld ", decoder->buildchar[i] )); FT_TRACE4(( "]\n" )); } @@ -1650,7 +1653,8 @@ } /* while ip < limit */ - FT_TRACE4(( "..end..\n\n" )); + FT_TRACE4(( "..end..\n" )); + FT_TRACE4(( "\n" )); Fail: return error; @@ -2070,7 +2074,8 @@ } /* while ip < limit */ - FT_TRACE4(( "..end..\n\n" )); + FT_TRACE4(( "..end..\n" )); + FT_TRACE4(( "\n" )); No_Width: FT_ERROR(( "t1_decoder_parse_metrics:" diff --git a/src/psaux/t1decode.h b/src/psaux/t1decode.h index b793504ac..eea9d34b0 100644 --- a/src/psaux/t1decode.h +++ b/src/psaux/t1decode.h @@ -4,7 +4,7 @@ * * PostScript Type 1 decoding routines (specification). * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/pshinter/module.mk b/src/pshinter/module.mk index b440d2e76..ca181ee6b 100644 --- a/src/pshinter/module.mk +++ b/src/pshinter/module.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/pshinter/pshalgo.c b/src/pshinter/pshalgo.c index 920b9a74b..227caeae3 100644 --- a/src/pshinter/pshalgo.c +++ b/src/pshinter/pshalgo.c @@ -4,7 +4,7 @@ * * PostScript hinting algorithm (body). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used @@ -305,17 +305,18 @@ /* now, sort the hints; they are guaranteed to not overlap */ /* so we can compare their "org_pos" field directly */ { - FT_Int i1, i2; + FT_UInt i1, i2; PSH_Hint hint1, hint2; PSH_Hint* sort = table->sort; /* a simple bubble sort will do, since in 99% of cases, the hints */ /* will be already sorted -- and the sort will be linear */ - for ( i1 = 1; i1 < (FT_Int)count; i1++ ) + for ( i1 = 1; i1 < count; i1++ ) { hint1 = sort[i1]; - for ( i2 = i1 - 1; i2 >= 0; i2-- ) + /* this loop stops when i2 wraps around after reaching 0 */ + for ( i2 = i1 - 1; i2 < i1; i2-- ) { hint2 = sort[i2]; @@ -869,7 +870,7 @@ return; } -#endif /* DEBUG_HINTER*/ +#endif /* DEBUG_HINTER */ hint = table->hints; count = table->max_hints; @@ -1049,12 +1050,12 @@ } - static int + static PSH_Dir psh_compute_dir( FT_Pos dx, FT_Pos dy ) { - FT_Pos ax, ay; - int result = PSH_DIR_NONE; + FT_Pos ax, ay; + PSH_Dir result = PSH_DIR_NONE; ax = FT_ABS( dx ); @@ -1233,12 +1234,12 @@ dxi = vec[n].x - vec[n_prev].x; dyi = vec[n].y - vec[n_prev].y; - point->dir_in = (FT_Char)psh_compute_dir( dxi, dyi ); + point->dir_in = psh_compute_dir( dxi, dyi ); dxo = vec[n_next].x - vec[n].x; dyo = vec[n_next].y - vec[n].y; - point->dir_out = (FT_Char)psh_compute_dir( dxo, dyo ); + point->dir_out = psh_compute_dir( dxo, dyo ); /* detect smooth points */ if ( point->flags & PSH_POINT_OFF ) @@ -1403,16 +1404,13 @@ } - /* major_dir is the direction for points on the bottom/left of the stem; */ - /* Points on the top/right of the stem will have a direction of */ - /* -major_dir. */ - + /* the min and max are based on contour orientation and fill rule */ static void psh_hint_table_find_strong_points( PSH_Hint_Table table, PSH_Point point, FT_UInt count, FT_Int threshold, - FT_Int major_dir ) + PSH_Dir major_dir ) { PSH_Hint* sort = table->sort; FT_UInt num_hints = table->num_hints; @@ -1420,59 +1418,53 @@ for ( ; count > 0; count--, point++ ) { - FT_Int point_dir = 0; - FT_Pos org_u = point->org_u; + PSH_Dir point_dir; + FT_Pos org_u = point->org_u; if ( psh_point_is_strong( point ) ) continue; - if ( PSH_DIR_COMPARE( point->dir_in, major_dir ) ) - point_dir = point->dir_in; - - else if ( PSH_DIR_COMPARE( point->dir_out, major_dir ) ) - point_dir = point->dir_out; + point_dir = + (PSH_Dir)( ( point->dir_in | point->dir_out ) & major_dir ); - if ( point_dir ) + if ( point_dir & ( PSH_DIR_DOWN | PSH_DIR_RIGHT ) ) { - if ( point_dir == major_dir ) - { - FT_UInt nn; + FT_UInt nn; - for ( nn = 0; nn < num_hints; nn++ ) - { - PSH_Hint hint = sort[nn]; - FT_Pos d = org_u - hint->org_pos; + for ( nn = 0; nn < num_hints; nn++ ) + { + PSH_Hint hint = sort[nn]; + FT_Pos d = org_u - hint->org_pos; - if ( d < threshold && -d < threshold ) - { - psh_point_set_strong( point ); - point->flags2 |= PSH_POINT_EDGE_MIN; - point->hint = hint; - break; - } + if ( d < threshold && -d < threshold ) + { + psh_point_set_strong( point ); + point->flags2 |= PSH_POINT_EDGE_MIN; + point->hint = hint; + break; } } - else if ( point_dir == -major_dir ) - { - FT_UInt nn; + } + else if ( point_dir & ( PSH_DIR_UP | PSH_DIR_LEFT ) ) + { + FT_UInt nn; - for ( nn = 0; nn < num_hints; nn++ ) - { - PSH_Hint hint = sort[nn]; - FT_Pos d = org_u - hint->org_pos - hint->org_len; + for ( nn = 0; nn < num_hints; nn++ ) + { + PSH_Hint hint = sort[nn]; + FT_Pos d = org_u - hint->org_pos - hint->org_len; - if ( d < threshold && -d < threshold ) - { - psh_point_set_strong( point ); - point->flags2 |= PSH_POINT_EDGE_MAX; - point->hint = hint; - break; - } + if ( d < threshold && -d < threshold ) + { + psh_point_set_strong( point ); + point->flags2 |= PSH_POINT_EDGE_MAX; + point->hint = hint; + break; } } } @@ -1571,7 +1563,7 @@ PS_Mask mask = table->hint_masks->masks; FT_UInt num_masks = table->hint_masks->num_masks; FT_UInt first = 0; - FT_Int major_dir = ( dimension == 0 ) ? PSH_DIR_VERTICAL + PSH_Dir major_dir = ( dimension == 0 ) ? PSH_DIR_VERTICAL : PSH_DIR_HORIZONTAL; PSH_Dimension dim = &glyph->globals->dimension[dimension]; FT_Fixed scale = dim->scale_mult; @@ -1656,8 +1648,8 @@ /* check tangents */ - if ( !PSH_DIR_COMPARE( point->dir_in, PSH_DIR_HORIZONTAL ) && - !PSH_DIR_COMPARE( point->dir_out, PSH_DIR_HORIZONTAL ) ) + if ( !( point->dir_in & PSH_DIR_HORIZONTAL ) && + !( point->dir_out & PSH_DIR_HORIZONTAL ) ) continue; /* skip strong points */ diff --git a/src/pshinter/pshalgo.h b/src/pshinter/pshalgo.h index 5367a5d16..999c60192 100644 --- a/src/pshinter/pshalgo.h +++ b/src/pshinter/pshalgo.h @@ -4,7 +4,7 @@ * * PostScript hinting algorithm (specification). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -93,21 +93,17 @@ FT_BEGIN_HEADER typedef struct PSH_PointRec_* PSH_Point; typedef struct PSH_ContourRec_* PSH_Contour; - enum + typedef enum PSH_Dir_ { - PSH_DIR_NONE = 4, - PSH_DIR_UP = -1, - PSH_DIR_DOWN = 1, - PSH_DIR_LEFT = -2, - PSH_DIR_RIGHT = 2 - }; + PSH_DIR_NONE = 0, + PSH_DIR_UP = 1, + PSH_DIR_DOWN = 2, + PSH_DIR_VERTICAL = 1 | 2, + PSH_DIR_LEFT = 4, + PSH_DIR_RIGHT = 8, + PSH_DIR_HORIZONTAL = 4 | 8 -#define PSH_DIR_HORIZONTAL 2 -#define PSH_DIR_VERTICAL 1 - -#define PSH_DIR_COMPARE( d1, d2 ) ( (d1) == (d2) || (d1) == -(d2) ) -#define PSH_DIR_IS_HORIZONTAL( d ) PSH_DIR_COMPARE( d, PSH_DIR_HORIZONTAL ) -#define PSH_DIR_IS_VERTICAL( d ) PSH_DIR_COMPARE( d, PSH_DIR_VERTICAL ) + } PSH_Dir; /* the following bit-flags are computed once by the glyph */ @@ -160,8 +156,8 @@ FT_BEGIN_HEADER PSH_Contour contour; FT_UInt flags; FT_UInt flags2; - FT_Char dir_in; - FT_Char dir_out; + PSH_Dir dir_in; + PSH_Dir dir_out; PSH_Hint hint; FT_Pos org_u; FT_Pos org_v; @@ -199,10 +195,6 @@ FT_BEGIN_HEADER PSH_Globals globals; PSH_Hint_TableRec hint_tables[2]; - FT_Bool vertical; - FT_Int major_dir; - FT_Int minor_dir; - FT_Bool do_horz_hints; FT_Bool do_vert_hints; FT_Bool do_horz_snapping; diff --git a/src/pshinter/pshglob.c b/src/pshinter/pshglob.c index cdc1c3af0..2ca0f665c 100644 --- a/src/pshinter/pshglob.c +++ b/src/pshinter/pshglob.c @@ -5,7 +5,7 @@ * PostScript hinter global hinting management (body). * Inspired by the new auto-hinter module. * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used diff --git a/src/pshinter/pshglob.h b/src/pshinter/pshglob.h index 8181324e5..a8f9953fa 100644 --- a/src/pshinter/pshglob.h +++ b/src/pshinter/pshglob.h @@ -4,7 +4,7 @@ * * PostScript hinter global hinting management. * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/pshinter/pshinter.c b/src/pshinter/pshinter.c index 3cca0ad7c..705143dcd 100644 --- a/src/pshinter/pshinter.c +++ b/src/pshinter/pshinter.c @@ -4,7 +4,7 @@ * * FreeType PostScript Hinting module * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/pshinter/pshmod.c b/src/pshinter/pshmod.c index e0abd386f..6674041f7 100644 --- a/src/pshinter/pshmod.c +++ b/src/pshinter/pshmod.c @@ -4,7 +4,7 @@ * * FreeType PostScript hinter module implementation (body). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/pshinter/pshmod.h b/src/pshinter/pshmod.h index 2a6eb1c46..8b229bb07 100644 --- a/src/pshinter/pshmod.h +++ b/src/pshinter/pshmod.h @@ -4,7 +4,7 @@ * * PostScript hinter module interface (specification). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/pshinter/pshnterr.h b/src/pshinter/pshnterr.h index d67955c41..567d76513 100644 --- a/src/pshinter/pshnterr.h +++ b/src/pshinter/pshnterr.h @@ -4,7 +4,7 @@ * * PS Hinter error codes (specification only). * - * Copyright (C) 2003-2020 by + * Copyright (C) 2003-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/pshinter/pshrec.c b/src/pshinter/pshrec.c index bddccf2a6..1faabdaaf 100644 --- a/src/pshinter/pshrec.c +++ b/src/pshinter/pshrec.c @@ -4,7 +4,7 @@ * * FreeType PostScript hints recorder (body). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -499,23 +499,18 @@ ps_mask_table_merge_all( PS_Mask_Table table, FT_Memory memory ) { - FT_Int index1, index2; + FT_UInt index1, index2; FT_Error error = FT_Err_Ok; - /* both loops go down to 0, thus FT_Int for index1 and index2 */ - for ( index1 = (FT_Int)table->num_masks - 1; index1 > 0; index1-- ) + /* the loops stop when unsigned indices wrap around after 0 */ + for ( index1 = table->num_masks - 1; index1 < table->num_masks; index1-- ) { - for ( index2 = index1 - 1; index2 >= 0; index2-- ) + for ( index2 = index1 - 1; index2 < index1; index2-- ) { - if ( ps_mask_table_test_intersect( table, - (FT_UInt)index1, - (FT_UInt)index2 ) ) + if ( ps_mask_table_test_intersect( table, index1, index2 ) ) { - error = ps_mask_table_merge( table, - (FT_UInt)index2, - (FT_UInt)index1, - memory ); + error = ps_mask_table_merge( table, index2, index1, memory ); if ( error ) goto Exit; diff --git a/src/pshinter/pshrec.h b/src/pshinter/pshrec.h index b13c7be13..e483981d9 100644 --- a/src/pshinter/pshrec.h +++ b/src/pshinter/pshrec.h @@ -4,7 +4,7 @@ * * Postscript (Type1/Type2) hints recorder (specification). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/pshinter/rules.mk b/src/pshinter/rules.mk index c845c255c..3c5a59a80 100644 --- a/src/pshinter/rules.mk +++ b/src/pshinter/rules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 2001-2020 by +# Copyright (C) 2001-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/psnames/module.mk b/src/psnames/module.mk index 675bb3713..abfb54ffc 100644 --- a/src/psnames/module.mk +++ b/src/psnames/module.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/psnames/psmodule.c b/src/psnames/psmodule.c index b38f9d3b1..74adefa15 100644 --- a/src/psnames/psmodule.c +++ b/src/psnames/psmodule.c @@ -4,7 +4,7 @@ * * psnames module implementation (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -155,31 +155,30 @@ /* Look for a non-initial dot in the glyph name in order to */ /* find variants like `A.swash', `e.final', etc. */ { - const char* p = glyph_name; - const char* dot = NULL; + FT_UInt32 value = 0; + const char* p = glyph_name; + + for ( ; *p && *p != '.'; p++ ) + ; - for ( ; *p; p++ ) + /* now look up the glyph in the Adobe Glyph List; */ + /* `.notdef', `.null' and the empty name are short cut */ + if ( p > glyph_name ) { - if ( *p == '.' && p > glyph_name ) - { - dot = p; - break; - } + value = (FT_UInt32)ft_get_adobe_glyph_index( glyph_name, p ); + + if ( *p == '.' ) + value |= (FT_UInt32)VARIANT_BIT; } - /* now look up the glyph in the Adobe Glyph List */ - if ( !dot ) - return (FT_UInt32)ft_get_adobe_glyph_index( glyph_name, p ); - else - return (FT_UInt32)( ft_get_adobe_glyph_index( glyph_name, dot ) | - VARIANT_BIT ); + return value; } } /* ft_qsort callback to sort the unicode map */ - FT_CALLBACK_DEF( int ) + FT_COMPARE_DEF( int ) compare_uni_maps( const void* a, const void* b ) { @@ -326,9 +325,8 @@ /* we first allocate the table */ table->num_maps = 0; - table->maps = NULL; - if ( !FT_NEW_ARRAY( table->maps, num_glyphs + EXTRA_GLYPH_LIST_SIZE ) ) + if ( !FT_QNEW_ARRAY( table->maps, num_glyphs + EXTRA_GLYPH_LIST_SIZE ) ) { FT_UInt n; FT_UInt count; @@ -343,7 +341,7 @@ const char* gname = get_glyph_name( glyph_data, n ); - if ( gname ) + if ( gname && *gname ) { ps_check_extra_glyph_name( gname, n, extra_glyphs, extra_glyph_list_states ); @@ -391,9 +389,9 @@ /* Reallocate if the number of used entries is much smaller. */ if ( count < num_glyphs / 2 ) { - (void)FT_RENEW_ARRAY( table->maps, - num_glyphs + EXTRA_GLYPH_LIST_SIZE, - count ); + FT_MEM_QRENEW_ARRAY( table->maps, + num_glyphs + EXTRA_GLYPH_LIST_SIZE, + count ); error = FT_Err_Ok; } diff --git a/src/psnames/psmodule.h b/src/psnames/psmodule.h index c85a9ecad..e92a975e9 100644 --- a/src/psnames/psmodule.h +++ b/src/psnames/psmodule.h @@ -4,7 +4,7 @@ * * High-level psnames module interface (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/psnames/psnamerr.h b/src/psnames/psnamerr.h index 154c701d0..888b76c4f 100644 --- a/src/psnames/psnamerr.h +++ b/src/psnames/psnamerr.h @@ -4,7 +4,7 @@ * * PS names module error codes (specification only). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/psnames/psnames.c b/src/psnames/psnames.c index cff36851b..e7be6707d 100644 --- a/src/psnames/psnames.c +++ b/src/psnames/psnames.c @@ -4,7 +4,7 @@ * * FreeType psnames module component (body only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/psnames/pstables.h b/src/psnames/pstables.h index c215f16ff..0bcadca9c 100644 --- a/src/psnames/pstables.h +++ b/src/psnames/pstables.h @@ -4,7 +4,7 @@ * * PostScript glyph names. * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/psnames/rules.mk b/src/psnames/rules.mk index 14cdda3ad..6694f4eb6 100644 --- a/src/psnames/rules.mk +++ b/src/psnames/rules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/raster/ftmisc.h b/src/raster/ftmisc.h index 6efe4a9a5..b12a05123 100644 --- a/src/raster/ftmisc.h +++ b/src/raster/ftmisc.h @@ -5,7 +5,7 @@ * Miscellaneous macros for stand-alone rasterizer (specification * only). * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used @@ -47,11 +47,8 @@ typedef signed long FT_F26Dot6; typedef int FT_Error; -#define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \ - ( ( (FT_ULong)_x1 << 24 ) | \ - ( (FT_ULong)_x2 << 16 ) | \ - ( (FT_ULong)_x3 << 8 ) | \ - (FT_ULong)_x4 ) + +#define FT_STATIC_BYTE_CAST( type, var ) (type)(FT_Byte)(var) /* from include/freetype/ftsystem.h */ diff --git a/src/raster/ftraster.c b/src/raster/ftraster.c index 9f0a7976f..bfc059c1e 100644 --- a/src/raster/ftraster.c +++ b/src/raster/ftraster.c @@ -4,7 +4,7 @@ * * The FreeType glyph rasterizer (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -149,9 +149,6 @@ /*************************************************************************/ /*************************************************************************/ - /* define DEBUG_RASTER if you want to compile a debugging version */ -/* #define DEBUG_RASTER */ - /*************************************************************************/ /*************************************************************************/ @@ -200,12 +197,13 @@ #define FT_THROW( e ) FT_ERR_CAT( Raster_Err_, e ) #endif -#define Raster_Err_None 0 -#define Raster_Err_Not_Ini -1 -#define Raster_Err_Overflow -2 -#define Raster_Err_Neg_Height -3 -#define Raster_Err_Invalid -4 -#define Raster_Err_Unsupported -5 +#define Raster_Err_Ok 0 +#define Raster_Err_Invalid_Outline -1 +#define Raster_Err_Cannot_Render_Glyph -2 +#define Raster_Err_Invalid_Argument -3 +#define Raster_Err_Raster_Overflow -4 +#define Raster_Err_Raster_Uninitialized -5 +#define Raster_Err_Raster_Negative_Height -6 #define ft_memset memset @@ -230,13 +228,6 @@ #include "rasterrs.h" -#define Raster_Err_None FT_Err_Ok -#define Raster_Err_Not_Ini Raster_Err_Raster_Uninitialized -#define Raster_Err_Overflow Raster_Err_Raster_Overflow -#define Raster_Err_Neg_Height Raster_Err_Raster_Negative_Height -#define Raster_Err_Invalid Raster_Err_Invalid_Outline -#define Raster_Err_Unsupported Raster_Err_Cannot_Render_Glyph - #endif /* !STANDALONE_ */ @@ -375,16 +366,6 @@ typedef PProfile* PProfileList; - /* Simple record used to implement a stack of bands, required */ - /* by the sub-banding mechanism */ - typedef struct black_TBand_ - { - Short y_min; /* band's minimum */ - Short y_max; /* band's maximum */ - - } black_TBand; - - #define AlignProfileSize \ ( ( sizeof ( TProfile ) + sizeof ( Alignment ) - 1 ) / sizeof ( Long ) ) @@ -426,8 +407,8 @@ /* prototypes used for sweep function dispatch */ typedef void - Function_Sweep_Init( RAS_ARGS Short* min, - Short* max ); + Function_Sweep_Init( RAS_ARGS Short min, + Short max ); typedef void Function_Sweep_Span( RAS_ARGS Short y, @@ -492,10 +473,11 @@ Int numTurns; /* number of Y-turns in outline */ - TPoint* arc; /* current Bezier arc pointer */ + Byte dropOutControl; /* current drop_out control method */ UShort bWidth; /* target bitmap width */ PByte bOrigin; /* target bitmap bottom-left origin */ + PByte bLine; /* target bitmap current line */ Long lastX, lastY; Long minY, maxY; @@ -517,9 +499,6 @@ FT_Bitmap target; /* description of target bit/pixmap */ FT_Outline outline; - Long traceOfs; /* current offset in target bitmap */ - Short traceIncr; /* sweep's increment in target bitmap */ - /* dispatch variables */ Function_Sweep_Init* Proc_Sweep_Init; @@ -527,18 +506,6 @@ Function_Sweep_Span* Proc_Sweep_Drop; Function_Sweep_Step* Proc_Sweep_Step; - Byte dropOutControl; /* current drop_out control method */ - - Bool second_pass; /* indicates whether a horizontal pass */ - /* should be performed to control */ - /* drop-out accurately when calling */ - /* Render_Glyph. */ - - TPoint arcs[3 * MaxBezier + 1]; /* The Bezier stack */ - - black_TBand band_stack[16]; /* band stack used for sub-banding */ - Int band_top; /* band stack top */ - }; @@ -660,7 +627,7 @@ if ( ras.top >= ras.maxBuff ) { - ras.error = FT_THROW( Overflow ); + ras.error = FT_THROW( Raster_Overflow ); return FAILURE; } @@ -689,7 +656,7 @@ default: FT_ERROR(( "New_Profile: invalid profile direction\n" )); - ras.error = FT_THROW( Invalid ); + ras.error = FT_THROW( Invalid_Outline ); return FAILURE; } @@ -731,7 +698,7 @@ if ( h < 0 ) { FT_ERROR(( "End_Profile: negative height encountered\n" )); - ras.error = FT_THROW( Neg_Height ); + ras.error = FT_THROW( Raster_Negative_Height ); return FAILURE; } @@ -767,7 +734,7 @@ if ( ras.top >= ras.maxBuff ) { FT_TRACE1(( "overflow in End_Profile\n" )); - ras.error = FT_THROW( Overflow ); + ras.error = FT_THROW( Raster_Overflow ); return FAILURE; } @@ -822,7 +789,7 @@ ras.maxBuff--; if ( ras.maxBuff <= ras.top ) { - ras.error = FT_THROW( Overflow ); + ras.error = FT_THROW( Raster_Overflow ); return FAILURE; } ras.numTurns++; @@ -1086,7 +1053,7 @@ size = e2 - e1 + 1; if ( ras.top + size >= ras.maxBuff ) { - ras.error = FT_THROW( Overflow ); + ras.error = FT_THROW( Raster_Overflow ); return FAILURE; } @@ -1209,6 +1176,7 @@ */ static Bool Bezier_Up( RAS_ARGS Int degree, + TPoint* arc, TSplitter splitter, Long miny, Long maxy ) @@ -1216,13 +1184,11 @@ Long y1, y2, e, e2, e0; Short f1; - TPoint* arc; TPoint* start_arc; PLong top; - arc = ras.arc; y1 = arc[degree].y; y2 = arc[0].y; top = ras.top; @@ -1271,7 +1237,7 @@ if ( ( top + TRUNC( e2 - e ) + 1 ) >= ras.maxBuff ) { ras.top = top; - ras.error = FT_THROW( Overflow ); + ras.error = FT_THROW( Raster_Overflow ); return FAILURE; } @@ -1314,7 +1280,6 @@ Fin: ras.top = top; - ras.arc -= degree; return SUCCESS; } @@ -1346,11 +1311,11 @@ */ static Bool Bezier_Down( RAS_ARGS Int degree, + TPoint* arc, TSplitter splitter, Long miny, Long maxy ) { - TPoint* arc = ras.arc; Bool result, fresh; @@ -1362,7 +1327,7 @@ fresh = ras.fresh; - result = Bezier_Up( RAS_VARS degree, splitter, -maxy, -miny ); + result = Bezier_Up( RAS_VARS degree, arc, splitter, -maxy, -miny ); if ( fresh && !ras.fresh ) ras.cProfile->start = -ras.cProfile->start; @@ -1503,22 +1468,24 @@ { Long y1, y2, y3, x3, ymin, ymax; TStates state_bez; + TPoint arcs[2 * MaxBezier + 1]; /* The Bezier stack */ + TPoint* arc; /* current Bezier arc pointer */ - ras.arc = ras.arcs; - ras.arc[2].x = ras.lastX; - ras.arc[2].y = ras.lastY; - ras.arc[1].x = cx; - ras.arc[1].y = cy; - ras.arc[0].x = x; - ras.arc[0].y = y; + arc = arcs; + arc[2].x = ras.lastX; + arc[2].y = ras.lastY; + arc[1].x = cx; + arc[1].y = cy; + arc[0].x = x; + arc[0].y = y; do { - y1 = ras.arc[2].y; - y2 = ras.arc[1].y; - y3 = ras.arc[0].y; - x3 = ras.arc[0].x; + y1 = arc[2].y; + y2 = arc[1].y; + y3 = arc[0].y; + x3 = arc[0].x; /* first, categorize the Bezier arc */ @@ -1536,13 +1503,13 @@ if ( y2 < ymin || y2 > ymax ) { /* this arc has no given direction, split it! */ - Split_Conic( ras.arc ); - ras.arc += 2; + Split_Conic( arc ); + arc += 2; } else if ( y1 == y3 ) { /* this arc is flat, ignore it and pop it from the Bezier stack */ - ras.arc -= 2; + arc -= 2; } else { @@ -1569,15 +1536,18 @@ /* now call the appropriate routine */ if ( state_bez == Ascending_State ) { - if ( Bezier_Up( RAS_VARS 2, Split_Conic, ras.minY, ras.maxY ) ) + if ( Bezier_Up( RAS_VARS 2, arc, Split_Conic, + ras.minY, ras.maxY ) ) goto Fail; } else - if ( Bezier_Down( RAS_VARS 2, Split_Conic, ras.minY, ras.maxY ) ) + if ( Bezier_Down( RAS_VARS 2, arc, Split_Conic, + ras.minY, ras.maxY ) ) goto Fail; + arc -= 2; } - } while ( ras.arc >= ras.arcs ); + } while ( arc >= arcs ); ras.lastX = x3; ras.lastY = y3; @@ -1632,25 +1602,27 @@ { Long y1, y2, y3, y4, x4, ymin1, ymax1, ymin2, ymax2; TStates state_bez; + TPoint arcs[3 * MaxBezier + 1]; /* The Bezier stack */ + TPoint* arc; /* current Bezier arc pointer */ - ras.arc = ras.arcs; - ras.arc[3].x = ras.lastX; - ras.arc[3].y = ras.lastY; - ras.arc[2].x = cx1; - ras.arc[2].y = cy1; - ras.arc[1].x = cx2; - ras.arc[1].y = cy2; - ras.arc[0].x = x; - ras.arc[0].y = y; + arc = arcs; + arc[3].x = ras.lastX; + arc[3].y = ras.lastY; + arc[2].x = cx1; + arc[2].y = cy1; + arc[1].x = cx2; + arc[1].y = cy2; + arc[0].x = x; + arc[0].y = y; do { - y1 = ras.arc[3].y; - y2 = ras.arc[2].y; - y3 = ras.arc[1].y; - y4 = ras.arc[0].y; - x4 = ras.arc[0].x; + y1 = arc[3].y; + y2 = arc[2].y; + y3 = arc[1].y; + y4 = arc[0].y; + x4 = arc[0].x; /* first, categorize the Bezier arc */ @@ -1679,13 +1651,13 @@ if ( ymin2 < ymin1 || ymax2 > ymax1 ) { /* this arc has no given direction, split it! */ - Split_Cubic( ras.arc ); - ras.arc += 3; + Split_Cubic( arc ); + arc += 3; } else if ( y1 == y4 ) { /* this arc is flat, ignore it and pop it from the Bezier stack */ - ras.arc -= 3; + arc -= 3; } else { @@ -1711,15 +1683,18 @@ /* compute intersections */ if ( state_bez == Ascending_State ) { - if ( Bezier_Up( RAS_VARS 3, Split_Cubic, ras.minY, ras.maxY ) ) + if ( Bezier_Up( RAS_VARS 3, arc, Split_Cubic, + ras.minY, ras.maxY ) ) goto Fail; } else - if ( Bezier_Down( RAS_VARS 3, Split_Cubic, ras.minY, ras.maxY ) ) + if ( Bezier_Down( RAS_VARS 3, arc, Split_Cubic, + ras.minY, ras.maxY ) ) goto Fail; + arc -= 3; } - } while ( ras.arc >= ras.arcs ); + } while ( arc >= arcs ); ras.lastX = x4; ras.lastY = y4; @@ -1967,7 +1942,7 @@ return SUCCESS; Invalid_Outline: - ras.error = FT_THROW( Invalid ); + ras.error = FT_THROW( Invalid_Outline ); Fail: return FAILURE; @@ -2120,8 +2095,8 @@ * Removes an old profile from a linked list. */ static void - DelOld( PProfileList list, - PProfile profile ) + DelOld( PProfileList list, + const PProfile profile ) { PProfile *old, current; @@ -2214,16 +2189,13 @@ */ static void - Vertical_Sweep_Init( RAS_ARGS Short* min, - Short* max ) + Vertical_Sweep_Init( RAS_ARGS Short min, + Short max ) { - Long pitch = ras.target.pitch; - FT_UNUSED( max ); - ras.traceIncr = (Short)-pitch; - ras.traceOfs = -*min * pitch; + ras.bLine = ras.bOrigin - min * ras.target.pitch; } @@ -2234,8 +2206,7 @@ PProfile left, PProfile right ) { - Long e1, e2; - Byte* target; + Long e1, e2; Int dropOutControl = left->flags & 7; @@ -2268,6 +2239,8 @@ if ( e2 >= 0 && e1 < ras.bWidth ) { + Byte* target; + Int c1, c2; Byte f1, f2; @@ -2285,7 +2258,7 @@ f1 = (Byte) ( 0xFF >> ( e1 & 7 ) ); f2 = (Byte) ~( 0x7F >> ( e2 & 7 ) ); - target = ras.bOrigin + ras.traceOfs + c1; + target = ras.bLine + c1; c2 -= c1; if ( c2 > 0 ) @@ -2437,8 +2410,8 @@ c1 = (Short)( e1 >> 3 ); f1 = (Short)( e1 & 7 ); - if ( e1 >= 0 && e1 < ras.bWidth && - ras.bOrigin[ras.traceOfs + c1] & ( 0x80 >> f1 ) ) + if ( e1 >= 0 && e1 < ras.bWidth && + ras.bLine[c1] & ( 0x80 >> f1 ) ) goto Exit; } else @@ -2454,7 +2427,7 @@ c1 = (Short)( e1 >> 3 ); f1 = (Short)( e1 & 7 ); - ras.bOrigin[ras.traceOfs + c1] |= (char)( 0x80 >> f1 ); + ras.bLine[c1] |= (char)( 0x80 >> f1 ); } Exit: @@ -2465,7 +2438,7 @@ static void Vertical_Sweep_Step( RAS_ARG ) { - ras.traceOfs += ras.traceIncr; + ras.bLine -= ras.target.pitch; } @@ -2479,8 +2452,8 @@ */ static void - Horizontal_Sweep_Init( RAS_ARGS Short* min, - Short* max ) + Horizontal_Sweep_Init( RAS_ARGS Short min, + Short max ) { /* nothing, really */ FT_UNUSED_RASTER; @@ -2744,13 +2717,13 @@ /* check the Y-turns */ if ( ras.numTurns == 0 ) { - ras.error = FT_THROW( Invalid ); + ras.error = FT_THROW( Invalid_Outline ); return FAILURE; } /* now initialize the sweep */ - ras.Proc_Sweep_Init( RAS_VARS &min_Y, &max_Y ); + ras.Proc_Sweep_Init( RAS_VARS min_Y, max_Y ); /* then compute the distance of each profile from min_Y */ @@ -2977,11 +2950,11 @@ FT_Outline_Get_CBox( const FT_Outline* outline, FT_BBox *acbox ) { - Long xMin, yMin, xMax, yMax; - - if ( outline && acbox ) { + Long xMin, yMin, xMax, yMax; + + if ( outline->n_points == 0 ) { xMin = 0; @@ -3039,63 +3012,54 @@ * Renderer error code. */ static int - Render_Single_Pass( RAS_ARGS Bool flipped ) + Render_Single_Pass( RAS_ARGS Bool flipped, + Int y_min, + Int y_max ) { - Short i, j, k; + Int y_mid; + Int band_top = 0; + Int band_stack[32]; /* enough to bisect 32-bit int bands */ - while ( ras.band_top >= 0 ) + while ( 1 ) { - ras.maxY = (Long)ras.band_stack[ras.band_top].y_max * ras.precision; - ras.minY = (Long)ras.band_stack[ras.band_top].y_min * ras.precision; + ras.minY = (Long)y_min * ras.precision; + ras.maxY = (Long)y_max * ras.precision; ras.top = ras.buff; - ras.error = Raster_Err_None; + ras.error = Raster_Err_Ok; if ( Convert_Glyph( RAS_VARS flipped ) ) { - if ( ras.error != Raster_Err_Overflow ) - return FAILURE; - - ras.error = Raster_Err_None; + if ( ras.error != Raster_Err_Raster_Overflow ) + return ras.error; /* sub-banding */ -#ifdef DEBUG_RASTER - ClearBand( RAS_VARS TRUNC( ras.minY ), TRUNC( ras.maxY ) ); -#endif + if ( y_min == y_max ) + return ras.error; /* still Raster_Overflow */ - i = ras.band_stack[ras.band_top].y_min; - j = ras.band_stack[ras.band_top].y_max; + y_mid = ( y_min + y_max ) >> 1; - k = (Short)( ( i + j ) / 2 ); - - if ( ras.band_top >= 7 || k < i ) - { - ras.band_top = 0; - ras.error = FT_THROW( Invalid ); - - return ras.error; - } - - ras.band_stack[ras.band_top + 1].y_min = k; - ras.band_stack[ras.band_top + 1].y_max = j; - - ras.band_stack[ras.band_top].y_max = (Short)( k - 1 ); - - ras.band_top++; + band_stack[band_top++] = y_min; + y_min = y_mid + 1; } else { if ( ras.fProfile ) if ( Draw_Sweep( RAS_VAR ) ) return ras.error; - ras.band_top--; + + if ( --band_top < 0 ) + break; + + y_max = y_min - 1; + y_min = band_stack[band_top]; } } - return SUCCESS; + return Raster_Err_Ok; } @@ -3132,9 +3096,6 @@ ras.dropOutControl += 1; } - ras.second_pass = (Bool)( !( ras.outline.flags & - FT_OUTLINE_SINGLE_PASS ) ); - /* Vertical Sweep */ FT_TRACE7(( "Vertical pass (ftraster)\n" )); @@ -3143,21 +3104,18 @@ ras.Proc_Sweep_Drop = Vertical_Sweep_Drop; ras.Proc_Sweep_Step = Vertical_Sweep_Step; - ras.band_top = 0; - ras.band_stack[0].y_min = 0; - ras.band_stack[0].y_max = (Short)( ras.target.rows - 1 ); - ras.bWidth = (UShort)ras.target.width; ras.bOrigin = (Byte*)ras.target.buffer; if ( ras.target.pitch > 0 ) ras.bOrigin += (Long)( ras.target.rows - 1 ) * ras.target.pitch; - if ( ( error = Render_Single_Pass( RAS_VARS 0 ) ) != 0 ) + error = Render_Single_Pass( RAS_VARS 0, 0, (Int)ras.target.rows - 1 ); + if ( error ) return error; /* Horizontal Sweep */ - if ( ras.second_pass && ras.dropOutControl != 2 ) + if ( !( ras.outline.flags & FT_OUTLINE_SINGLE_PASS ) ) { FT_TRACE7(( "Horizontal pass (ftraster)\n" )); @@ -3166,22 +3124,12 @@ ras.Proc_Sweep_Drop = Horizontal_Sweep_Drop; ras.Proc_Sweep_Step = Horizontal_Sweep_Step; - ras.band_top = 0; - ras.band_stack[0].y_min = 0; - ras.band_stack[0].y_max = (Short)( ras.target.width - 1 ); - - if ( ( error = Render_Single_Pass( RAS_VARS 1 ) ) != 0 ) + error = Render_Single_Pass( RAS_VARS 1, 0, (Int)ras.target.width - 1 ); + if ( error ) return error; } - return Raster_Err_None; - } - - - static void - ft_black_init( black_PRaster raster ) - { - FT_UNUSED( raster ); + return Raster_Err_Ok; } @@ -3202,7 +3150,6 @@ *araster = (FT_Raster)&the_raster; FT_ZERO( &the_raster ); - ft_black_init( &the_raster ); return 0; } @@ -3227,14 +3174,10 @@ black_PRaster raster = NULL; - *araster = 0; if ( !FT_NEW( raster ) ) - { raster->memory = memory; - ft_black_init( raster ); - *araster = raster; - } + *araster = raster; return error; } @@ -3292,38 +3235,36 @@ if ( !raster ) - return FT_THROW( Not_Ini ); + return FT_THROW( Raster_Uninitialized ); if ( !outline ) - return FT_THROW( Invalid ); + return FT_THROW( Invalid_Outline ); /* return immediately if the outline is empty */ if ( outline->n_points == 0 || outline->n_contours <= 0 ) - return Raster_Err_None; + return Raster_Err_Ok; if ( !outline->contours || !outline->points ) - return FT_THROW( Invalid ); + return FT_THROW( Invalid_Outline ); if ( outline->n_points != outline->contours[outline->n_contours - 1] + 1 ) - return FT_THROW( Invalid ); + return FT_THROW( Invalid_Outline ); /* this version of the raster does not support direct rendering, sorry */ - if ( params->flags & FT_RASTER_FLAG_DIRECT ) - return FT_THROW( Unsupported ); - - if ( params->flags & FT_RASTER_FLAG_AA ) - return FT_THROW( Unsupported ); + if ( params->flags & FT_RASTER_FLAG_DIRECT || + params->flags & FT_RASTER_FLAG_AA ) + return FT_THROW( Cannot_Render_Glyph ); if ( !target_map ) - return FT_THROW( Invalid ); + return FT_THROW( Invalid_Argument ); /* nothing to do */ if ( !target_map->width || !target_map->rows ) - return Raster_Err_None; + return Raster_Err_Ok; if ( !target_map->buffer ) - return FT_THROW( Invalid ); + return FT_THROW( Invalid_Argument ); ras.outline = *outline; ras.target = *target_map; diff --git a/src/raster/ftraster.h b/src/raster/ftraster.h index 1b2ee3c01..4affd48b5 100644 --- a/src/raster/ftraster.h +++ b/src/raster/ftraster.h @@ -4,7 +4,7 @@ * * The FreeType glyph rasterizer (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used diff --git a/src/raster/ftrend1.c b/src/raster/ftrend1.c index 57fed9bc1..236a8daf0 100644 --- a/src/raster/ftrend1.c +++ b/src/raster/ftrend1.c @@ -4,7 +4,7 @@ * * The FreeType glyph rasterizer interface (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/raster/ftrend1.h b/src/raster/ftrend1.h index 3f6be5367..e4cea5374 100644 --- a/src/raster/ftrend1.h +++ b/src/raster/ftrend1.h @@ -4,7 +4,7 @@ * * The FreeType glyph rasterizer interface (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/raster/module.mk b/src/raster/module.mk index 3600732b1..fbc1d64ec 100644 --- a/src/raster/module.mk +++ b/src/raster/module.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/raster/raster.c b/src/raster/raster.c index cd37943bf..ad81a3941 100644 --- a/src/raster/raster.c +++ b/src/raster/raster.c @@ -4,7 +4,7 @@ * * FreeType monochrome rasterer module component (body only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/raster/rasterrs.h b/src/raster/rasterrs.h index a29651a6c..852dd5bc3 100644 --- a/src/raster/rasterrs.h +++ b/src/raster/rasterrs.h @@ -4,7 +4,7 @@ * * monochrome renderer error codes (specification only). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/raster/rules.mk b/src/raster/rules.mk index 3e949d774..7ffda7727 100644 --- a/src/raster/rules.mk +++ b/src/raster/rules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/sdf/ftbsdf.c b/src/sdf/ftbsdf.c new file mode 100644 index 000000000..8da5c9d9e --- /dev/null +++ b/src/sdf/ftbsdf.c @@ -0,0 +1,1347 @@ +/**************************************************************************** + * + * ftbsdf.c + * + * Signed Distance Field support for bitmap fonts (body only). + * + * Copyright (C) 2020-2021 by + * David Turner, Robert Wilhelm, and Werner Lemberg. + * + * Written by Anuj Verma. + * + * This file is part of the FreeType project, and may only be used, + * modified, and distributed under the terms of the FreeType project + * license, LICENSE.TXT. By continuing to use, modify, or distribute + * this file you indicate that you have read the license and + * understand and accept it fully. + * + */ + + +#include <freetype/internal/ftobjs.h> +#include <freetype/internal/ftdebug.h> +#include <freetype/internal/ftmemory.h> +#include <freetype/fttrigon.h> + +#include "ftsdf.h" +#include "ftsdferrs.h" +#include "ftsdfcommon.h" + + + /************************************************************************** + * + * A brief technical overview of how the BSDF rasterizer works + * ----------------------------------------------------------- + * + * [Notes]: + * * SDF stands for Signed Distance Field everywhere. + * + * * BSDF stands for Bitmap to Signed Distance Field rasterizer. + * + * * This renderer converts rasterized bitmaps to SDF. There is another + * renderer called 'sdf', which generates SDF directly from outlines; + * see file `ftsdf.c` for more. + * + * * The idea of generating SDF from bitmaps is taken from two research + * papers, where one is dependent on the other: + * + * - Per-Erik Danielsson: Euclidean Distance Mapping + * http://webstaff.itn.liu.se/~stegu/JFA/Danielsson.pdf + * + * From this paper we use the eight-point sequential Euclidean + * distance mapping (8SED). This is the heart of the process used + * in this rasterizer. + * + * - Stefan Gustavson, Robin Strand: Anti-aliased Euclidean distance transform. + * http://weber.itn.liu.se/~stegu/aadist/edtaa_preprint.pdf + * + * The original 8SED algorithm discards the pixels' alpha values, + * which can contain information about the actual outline of the + * glyph. This paper takes advantage of those alpha values and + * approximates outline pretty accurately. + * + * * This rasterizer also works for monochrome bitmaps. However, the + * result is not as accurate since we don't have any way to + * approximate outlines from binary bitmaps. + * + * ======================================================================== + * + * Generating SDF from bitmap is done in several steps. + * + * (1) The only information we have is the bitmap itself. It can + * be monochrome or anti-aliased. If it is anti-aliased, pixel values + * are nothing but coverage values. These coverage values can be used + * to extract information about the outline of the image. For + * example, if the pixel's alpha value is 0.5, then we can safely + * assume that the outline passes through the center of the pixel. + * + * (2) Find edge pixels in the bitmap (see `bsdf_is_edge` for more). For + * all edge pixels we use the Anti-aliased Euclidean distance + * transform algorithm and compute approximate edge distances (see + * `compute_edge_distance` and/or the second paper for more). + * + * (3) Now that we have computed approximate distances for edge pixels we + * use the 8SED algorithm to basically sweep the entire bitmap and + * compute distances for the rest of the pixels. (Since the algorithm + * is pretty convoluted it is only explained briefly in a comment to + * function `edt8`. To see the actual algorithm refer to the first + * paper.) + * + * (4) Finally, compute the sign for each pixel. This is done in function + * `finalize_sdf`. The basic idea is that if a pixel's original + * alpha/coverage value is greater than 0.5 then it is 'inside' (and + * 'outside' otherwise). + * + * Pseudo Code: + * + * ``` + * b = source bitmap; + * t = target bitmap; + * dm = list of distances; // dimension equal to b + * + * foreach grid_point (x, y) in b: + * { + * if (is_edge(x, y)): + * dm = approximate_edge_distance(b, x, y); + * + * // do the 8SED on the distances + * edt8(dm); + * + * // determine the signs + * determine_signs(dm): + * + * // copy SDF data to the target bitmap + * copy(dm to t); + * } + * + */ + + + /************************************************************************** + * + * The macro FT_COMPONENT is used in trace mode. It is an implicit + * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log + * messages during execution. + */ +#undef FT_COMPONENT +#define FT_COMPONENT bsdf + + + /************************************************************************** + * + * useful macros + * + */ + +#define ONE 65536 /* 1 in 16.16 */ + + + /************************************************************************** + * + * structs + * + */ + + + /************************************************************************** + * + * @Struct: + * BSDF_TRaster + * + * @Description: + * This struct is used in place of @FT_Raster and is stored within the + * internal FreeType renderer struct. While rasterizing this is passed + * to the @FT_Raster_RenderFunc function, which then can be used however + * we want. + * + * @Fields: + * memory :: + * Used internally to allocate intermediate memory while raterizing. + * + */ + typedef struct BSDF_TRaster_ + { + FT_Memory memory; + + } BSDF_TRaster, *BSDF_PRaster; + + + /************************************************************************** + * + * @Struct: + * ED + * + * @Description: + * Euclidean distance. It gets used for Euclidean distance transforms; + * it can also be interpreted as an edge distance. + * + * @Fields: + * dist :: + * Vector length of the `near` parameter. Can be squared or absolute + * depending on the `USE_SQUARED_DISTANCES` macro defined in file + * `ftsdfcommon.h`. + * + * near :: + * Vector to the nearest edge. Can also be interpreted as shortest + * distance of a point. + * + * alpha :: + * Alpha value of the original bitmap from which we generate SDF. + * Needed for computing the gradient and determining the proper sign + * of a pixel. + * + */ + typedef struct ED_ + { + FT_16D16 dist; + FT_16D16_Vec near; + FT_Byte alpha; + + } ED; + + + /************************************************************************** + * + * @Struct: + * BSDF_Worker + * + * @Description: + * A convenience struct that is passed to functions while generating + * SDF; most of those functions require the same parameters. + * + * @Fields: + * distance_map :: + * A one-dimensional array that gets interpreted as two-dimensional + * one. It contains the Euclidean distances of all points of the + * bitmap. + * + * width :: + * Width of the above `distance_map`. + * + * rows :: + * Number of rows in the above `distance_map`. + * + * params :: + * Internal parameters and properties required by the rasterizer. See + * file `ftsdf.h` for more. + * + */ + typedef struct BSDF_Worker_ + { + ED* distance_map; + + FT_Int width; + FT_Int rows; + + SDF_Raster_Params params; + + } BSDF_Worker; + + + /************************************************************************** + * + * initializer + * + */ + + static const ED zero_ed = { 0, { 0, 0 }, 0 }; + + + /************************************************************************** + * + * rasterizer functions + * + */ + + /************************************************************************** + * + * @Function: + * bsdf_is_edge + * + * @Description: + * Check whether a pixel is an edge pixel, i.e., whether it is + * surrounded by a completely black pixel (zero alpha), and the current + * pixel is not a completely black pixel. + * + * @Input: + * dm :: + * Array of distances. The parameter must point to the current + * pixel, i.e., the pixel that is to be checked for being an edge. + * + * x :: + * The x position of the current pixel. + * + * y :: + * The y position of the current pixel. + * + * w :: + * Width of the bitmap. + * + * r :: + * Number of rows in the bitmap. + * + * @Return: + * 1~if the current pixel is an edge pixel, 0~otherwise. + * + */ + +#ifdef CHECK_NEIGHBOR +#undef CHECK_NEIGHBOR +#endif + +#define CHECK_NEIGHBOR( x_offset, y_offset ) \ + do \ + { \ + if ( x + x_offset >= 0 && x + x_offset < w && \ + y + y_offset >= 0 && y + y_offset < r ) \ + { \ + num_neighbors++; \ + \ + to_check = dm + y_offset * w + x_offset; \ + if ( to_check->alpha == 0 ) \ + { \ + is_edge = 1; \ + goto Done; \ + } \ + } \ + } while ( 0 ) + + static FT_Bool + bsdf_is_edge( ED* dm, /* distance map */ + FT_Int x, /* x index of point to check */ + FT_Int y, /* y index of point to check */ + FT_Int w, /* width */ + FT_Int r ) /* rows */ + { + FT_Bool is_edge = 0; + ED* to_check = NULL; + FT_Int num_neighbors = 0; + + + if ( dm->alpha == 0 ) + goto Done; + + if ( dm->alpha > 0 && dm->alpha < 255 ) + { + is_edge = 1; + goto Done; + } + + /* up */ + CHECK_NEIGHBOR( 0, -1 ); + + /* down */ + CHECK_NEIGHBOR( 0, 1 ); + + /* left */ + CHECK_NEIGHBOR( -1, 0 ); + + /* right */ + CHECK_NEIGHBOR( 1, 0 ); + + /* up left */ + CHECK_NEIGHBOR( -1, -1 ); + + /* up right */ + CHECK_NEIGHBOR( 1, -1 ); + + /* down left */ + CHECK_NEIGHBOR( -1, 1 ); + + /* down right */ + CHECK_NEIGHBOR( 1, 1 ); + + if ( num_neighbors != 8 ) + is_edge = 1; + + Done: + return is_edge; + } + +#undef CHECK_NEIGHBOR + + + /************************************************************************** + * + * @Function: + * compute_edge_distance + * + * @Description: + * Approximate the outline and compute the distance from `current` + * to the approximated outline. + * + * @Input: + * current :: + * Array of Euclidean distances. `current` must point to the position + * for which the distance is to be caculated. We treat this array as + * a two-dimensional array mapped to a one-dimensional array. + * + * x :: + * The x coordinate of the `current` parameter in the array. + * + * y :: + * The y coordinate of the `current` parameter in the array. + * + * w :: + * The width of the distances array. + * + * r :: + * Number of rows in the distances array. + * + * @Return: + * A vector pointing to the approximate edge distance. + * + * @Note: + * This is a computationally expensive function. Try to reduce the + * number of calls to this function. Moreover, this must only be used + * for edge pixel positions. + * + */ + static FT_16D16_Vec + compute_edge_distance( ED* current, + FT_Int x, + FT_Int y, + FT_Int w, + FT_Int r ) + { + /* + * This function, based on the paper presented by Stefan Gustavson and + * Robin Strand, gets used to approximate edge distances from + * anti-aliased bitmaps. + * + * The algorithm is as follows. + * + * (1) In anti-aliased images, the pixel's alpha value is the coverage + * of the pixel by the outline. For example, if the alpha value is + * 0.5f we can assume that the outline passes through the center of + * the pixel. + * + * (2) For this reason we can use that alpha value to approximate the real + * distance of the pixel to edge pretty accurately. A simple + * approximation is `(0.5f - alpha)`, assuming that the outline is + * parallel to the x or y~axis. However, in this algorithm we use a + * different approximation which is quite accurate even for + * non-axis-aligned edges. + * + * (3) The only remaining piece of information that we cannot + * approximate directly from the alpha is the direction of the edge. + * This is where we use Sobel's operator to compute the gradient of + * the pixel. The gradient give us a pretty good approximation of + * the edge direction. We use a 3x3 kernel filter to compute the + * gradient. + * + * (4) After the above two steps we have both the direction and the + * distance to the edge which is used to generate the Signed + * Distance Field. + * + * References: + * + * - Anti-Aliased Euclidean Distance Transform: + * http://weber.itn.liu.se/~stegu/aadist/edtaa_preprint.pdf + * - Sobel Operator: + * https://en.wikipedia.org/wiki/Sobel_operator + */ + + FT_16D16_Vec g = { 0, 0 }; + FT_16D16 dist, current_alpha; + FT_16D16 a1, temp; + FT_16D16 gx, gy; + FT_16D16 alphas[9]; + + + /* Since our spread cannot be 0, this condition */ + /* can never be true. */ + if ( x <= 0 || x >= w - 1 || + y <= 0 || y >= r - 1 ) + return g; + + /* initialize the alphas */ + alphas[0] = 256 * (FT_16D16)current[-w - 1].alpha; + alphas[1] = 256 * (FT_16D16)current[-w ].alpha; + alphas[2] = 256 * (FT_16D16)current[-w + 1].alpha; + alphas[3] = 256 * (FT_16D16)current[ -1].alpha; + alphas[4] = 256 * (FT_16D16)current[ 0].alpha; + alphas[5] = 256 * (FT_16D16)current[ 1].alpha; + alphas[6] = 256 * (FT_16D16)current[ w - 1].alpha; + alphas[7] = 256 * (FT_16D16)current[ w ].alpha; + alphas[8] = 256 * (FT_16D16)current[ w + 1].alpha; + + current_alpha = alphas[4]; + + /* Compute the gradient using the Sobel operator. */ + /* In this case we use the following 3x3 filters: */ + /* */ + /* For x: | -1 0 -1 | */ + /* | -root(2) 0 root(2) | */ + /* | -1 0 1 | */ + /* */ + /* For y: | -1 -root(2) -1 | */ + /* | 0 0 0 | */ + /* | 1 root(2) 1 | */ + /* */ + /* [Note]: 92681 is root(2) in 16.16 format. */ + g.x = -alphas[0] - + FT_MulFix( alphas[3], 92681 ) - + alphas[6] + + alphas[2] + + FT_MulFix( alphas[5], 92681 ) + + alphas[8]; + + g.y = -alphas[0] - + FT_MulFix( alphas[1], 92681 ) - + alphas[2] + + alphas[6] + + FT_MulFix( alphas[7], 92681 ) + + alphas[8]; + + FT_Vector_NormLen( &g ); + + /* The gradient gives us the direction of the */ + /* edge for the current pixel. Once we have the */ + /* approximate direction of the edge, we can */ + /* approximate the edge distance much better. */ + + if ( g.x == 0 || g.y == 0 ) + dist = ONE / 2 - alphas[4]; + else + { + gx = g.x; + gy = g.y; + + gx = FT_ABS( gx ); + gy = FT_ABS( gy ); + + if ( gx < gy ) + { + temp = gx; + gx = gy; + gy = temp; + } + + a1 = FT_DivFix( gy, gx ) / 2; + + if ( current_alpha < a1 ) + dist = ( gx + gy ) / 2 - + square_root( 2 * FT_MulFix( gx, + FT_MulFix( gy, + current_alpha ) ) ); + + else if ( current_alpha < ( ONE - a1 ) ) + dist = FT_MulFix( ONE / 2 - current_alpha, gx ); + + else + dist = -( gx + gy ) / 2 + + square_root( 2 * FT_MulFix( gx, + FT_MulFix( gy, + ONE - current_alpha ) ) ); + } + + g.x = FT_MulFix( g.x, dist ); + g.y = FT_MulFix( g.y, dist ); + + return g; + } + + + /************************************************************************** + * + * @Function: + * bsdf_approximate_edge + * + * @Description: + * Loops over all the pixels and call `compute_edge_distance` only for + * edge pixels. This maked the process a lot faster since + * `compute_edge_distance` uses functions such as `FT_Vector_NormLen', + * which are quite slow. + * + * @InOut: + * worker :: + * Contains the distance map as well as all the relevant parameters + * required by the function. + * + * @Return: + * FreeType error, 0 means success. + * + * @Note: + * The function directly manipulates `worker->distance_map`. + * + */ + static FT_Error + bsdf_approximate_edge( BSDF_Worker* worker ) + { + FT_Error error = FT_Err_Ok; + FT_Int i, j; + FT_Int index; + ED* ed; + + + if ( !worker || !worker->distance_map ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + ed = worker->distance_map; + + for ( j = 0; j < worker->rows; j++ ) + { + for ( i = 0; i < worker->width; i++ ) + { + index = j * worker->width + i; + + if ( bsdf_is_edge( worker->distance_map + index, + i, j, + worker->width, + worker->rows ) ) + { + /* approximate the edge distance for edge pixels */ + ed[index].near = compute_edge_distance( ed + index, + i, j, + worker->width, + worker->rows ); + ed[index].dist = VECTOR_LENGTH_16D16( ed[index].near ); + } + else + { + /* for non-edge pixels assign far away distances */ + ed[index].dist = 400 * ONE; + ed[index].near.x = 200 * ONE; + ed[index].near.y = 200 * ONE; + } + } + } + + Exit: + return error; + } + + + /************************************************************************** + * + * @Function: + * bsdf_init_distance_map + * + * @Description: + * Initialize the distance map according to the '8-point sequential + * Euclidean distance mapping' (8SED) algorithm. Basically it copies + * the `source` bitmap alpha values to the `distance_map->alpha` + * parameter of `worker`. + * + * @Input: + * source :: + * Source bitmap to copy the data from. + * + * @Output: + * worker :: + * Target distance map to copy the data to. + * + * @Return: + * FreeType error, 0 means success. + * + */ + static FT_Error + bsdf_init_distance_map( const FT_Bitmap* source, + BSDF_Worker* worker ) + { + FT_Error error = FT_Err_Ok; + + FT_Int x_diff, y_diff; + FT_Int t_i, t_j, s_i, s_j; + FT_Byte* s; + ED* t; + + + /* again check the parameters (probably unnecessary) */ + if ( !source || !worker ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + /* Because of the way we convert a bitmap to SDF, */ + /* i.e., aligning the source to the center of the */ + /* target, the target's width and rows must be */ + /* checked before copying. */ + if ( worker->width < (FT_Int)source->width || + worker->rows < (FT_Int)source->rows ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + /* check pixel mode */ + if ( source->pixel_mode == FT_PIXEL_MODE_NONE ) + { + FT_ERROR(( "bsdf_copy_source_to_target:" + " Invalid pixel mode of source bitmap" )); + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + +#ifdef FT_DEBUG_LEVEL_TRACE + if ( source->pixel_mode == FT_PIXEL_MODE_MONO ) + { + FT_TRACE0(( "bsdf_copy_source_to_target:" + " The `bsdf' renderer can convert monochrome\n" )); + FT_TRACE0(( " " + " bitmaps to SDF but the results are not perfect\n" )); + FT_TRACE0(( " " + " because there is no way to approximate actual\n" )); + FT_TRACE0(( " " + " outlines from monochrome bitmaps. Consider\n" )); + FT_TRACE0(( " " + " using an anti-aliased bitmap instead.\n" )); + } +#endif + + /* Calculate the width and row differences */ + /* between target and source. */ + x_diff = worker->width - (int)source->width; + y_diff = worker->rows - (int)source->rows; + + x_diff /= 2; + y_diff /= 2; + + t = (ED*)worker->distance_map; + s = source->buffer; + + /* For now we only support pixel mode `FT_PIXEL_MODE_MONO` */ + /* and `FT_PIXEL_MODE_GRAY`. More will be added later. */ + /* */ + /* [NOTE]: We can also use @FT_Bitmap_Convert to convert */ + /* bitmap to 8bpp. To avoid extra allocation and */ + /* since the target bitmap can be 16bpp we manually */ + /* convert the source bitmap to the desired bpp. */ + + switch ( source->pixel_mode ) + { + case FT_PIXEL_MODE_MONO: + { + FT_Int t_width = worker->width; + FT_Int t_rows = worker->rows; + FT_Int s_width = (int)source->width; + FT_Int s_rows = (int)source->rows; + + + for ( t_j = 0; t_j < t_rows; t_j++ ) + { + for ( t_i = 0; t_i < t_width; t_i++ ) + { + FT_Int t_index = t_j * t_width + t_i; + FT_Int s_index; + FT_Int div, mod; + FT_Byte pixel, byte; + + + t[t_index] = zero_ed; + + s_i = t_i - x_diff; + s_j = t_j - y_diff; + + /* Assign 0 to padding similar to */ + /* the source bitmap. */ + if ( s_i < 0 || s_i >= s_width || + s_j < 0 || s_j >= s_rows ) + continue; + + if ( worker->params.flip_y ) + s_index = ( s_rows - s_j - 1 ) * source->pitch; + else + s_index = s_j * source->pitch; + + div = s_index + s_i / 8; + mod = 7 - s_i % 8; + + pixel = s[div]; + byte = (FT_Byte)( 1 << mod ); + + t[t_index].alpha = pixel & byte ? 255 : 0; + + pixel = 0; + } + } + } + break; + + case FT_PIXEL_MODE_GRAY: + { + FT_Int t_width = worker->width; + FT_Int t_rows = worker->rows; + FT_Int s_width = (int)source->width; + FT_Int s_rows = (int)source->rows; + + + /* loop over all pixels and assign pixel values from source */ + for ( t_j = 0; t_j < t_rows; t_j++ ) + { + for ( t_i = 0; t_i < t_width; t_i++ ) + { + FT_Int t_index = t_j * t_width + t_i; + FT_Int s_index; + + + t[t_index] = zero_ed; + + s_i = t_i - x_diff; + s_j = t_j - y_diff; + + /* Assign 0 to padding similar to */ + /* the source bitmap. */ + if ( s_i < 0 || s_i >= s_width || + s_j < 0 || s_j >= s_rows ) + continue; + + if ( worker->params.flip_y ) + s_index = ( s_rows - s_j - 1 ) * s_width + s_i; + else + s_index = s_j * s_width + s_i; + + /* simply copy the alpha values */ + t[t_index].alpha = s[s_index]; + } + } + } + break; + + default: + FT_ERROR(( "bsdf_copy_source_to_target:" + " unsopported pixel mode of source bitmap\n" )); + + error = FT_THROW( Unimplemented_Feature ); + break; + } + + Exit: + return error; + } + + + /************************************************************************** + * + * @Function: + * compare_neighbor + * + * @Description: + * Compare neighbor pixel (which is defined by the offset) and update + * `current` distance if the new distance is shorter than the original. + * + * @Input: + * x_offset :: + * X offset of the neighbor to be checked. The offset is relative to + * the `current`. + * + * y_offset :: + * Y offset of the neighbor to be checked. The offset is relative to + * the `current`. + * + * width :: + * Width of the `current` array. + * + * @InOut: + * current :: + * Pointer into array of distances. This parameter must point to the + * position whose neighbor is to be checked. The array is treated as + * a two-dimensional array. + * + */ + static void + compare_neighbor( ED* current, + FT_Int x_offset, + FT_Int y_offset, + FT_Int width ) + { + ED* to_check; + FT_16D16 dist; + FT_16D16_Vec dist_vec; + + + to_check = current + ( y_offset * width ) + x_offset; + + /* + * While checking for the nearest point we first approximate the + * distance of `current` by adding the deviation (which is sqrt(2) at + * most). Only if the new value is less than the current value we + * calculate the actual distances using `FT_Vector_Length`. This last + * step can be omitted by using squared distances. + */ + + /* + * Approximate the distance. We subtract 1 to avoid precision errors, + * which could happen because the two directions can be opposite. + */ + dist = to_check->dist - ONE; + + if ( dist < current->dist ) + { + dist_vec = to_check->near; + + dist_vec.x += x_offset * ONE; + dist_vec.y += y_offset * ONE; + dist = VECTOR_LENGTH_16D16( dist_vec ); + + if ( dist < current->dist ) + { + current->dist = dist; + current->near = dist_vec; + } + } + } + + + /************************************************************************** + * + * @Function: + * first_pass + * + * @Description: + * First pass of the 8SED algorithm. Loop over the bitmap from top to + * bottom and scan each row left to right, updating the distances in + * `worker->distance_map`. + * + * @InOut: + * worker:: + * Contains all the relevant parameters. + * + */ + static void + first_pass( BSDF_Worker* worker ) + { + FT_Int i, j; /* iterators */ + FT_Int w, r; /* width, rows */ + ED* dm; /* distance map */ + + + dm = worker->distance_map; + w = worker->width; + r = worker->rows; + + /* Start scanning from top to bottom and sweep each */ + /* row back and forth comparing the distances of the */ + /* neighborhood. Leave the first row as it has no top */ + /* neighbor; it will be covered in the second scan of */ + /* the image (from bottom to top). */ + for ( j = 1; j < r; j++ ) + { + FT_Int index; + ED* current; + + + /* Forward pass of rows (left -> right). Leave the first */ + /* column, which gets covered in the backward pass. */ + for ( i = 1; i < w - 1; i++ ) + { + index = j * w + i; + current = dm + index; + + /* left-up */ + compare_neighbor( current, -1, -1, w ); + /* up */ + compare_neighbor( current, 0, -1, w ); + /* up-right */ + compare_neighbor( current, 1, -1, w ); + /* left */ + compare_neighbor( current, -1, 0, w ); + } + + /* Backward pass of rows (right -> left). Leave the last */ + /* column, which was already covered in the forward pass. */ + for ( i = w - 2; i >= 0; i-- ) + { + index = j * w + i; + current = dm + index; + + /* right */ + compare_neighbor( current, 1, 0, w ); + } + } + } + + + /************************************************************************** + * + * @Function: + * second_pass + * + * @Description: + * Second pass of the 8SED algorithm. Loop over the bitmap from bottom + * to top and scan each row left to right, updating the distances in + * `worker->distance_map`. + * + * @InOut: + * worker:: + * Contains all the relevant parameters. + * + */ + static void + second_pass( BSDF_Worker* worker ) + { + FT_Int i, j; /* iterators */ + FT_Int w, r; /* width, rows */ + ED* dm; /* distance map */ + + + dm = worker->distance_map; + w = worker->width; + r = worker->rows; + + /* Start scanning from bottom to top and sweep each */ + /* row back and forth comparing the distances of the */ + /* neighborhood. Leave the last row as it has no down */ + /* neighbor; it is already covered in the first scan */ + /* of the image (from top to bottom). */ + for ( j = r - 2; j >= 0; j-- ) + { + FT_Int index; + ED* current; + + + /* Forward pass of rows (left -> right). Leave the first */ + /* column, which gets covered in the backward pass. */ + for ( i = 1; i < w - 1; i++ ) + { + index = j * w + i; + current = dm + index; + + /* left-up */ + compare_neighbor( current, -1, 1, w ); + /* up */ + compare_neighbor( current, 0, 1, w ); + /* up-right */ + compare_neighbor( current, 1, 1, w ); + /* left */ + compare_neighbor( current, -1, 0, w ); + } + + /* Backward pass of rows (right -> left). Leave the last */ + /* column, which was already covered in the forward pass. */ + for ( i = w - 2; i >= 0; i-- ) + { + index = j * w + i; + current = dm + index; + + /* right */ + compare_neighbor( current, 1, 0, w ); + } + } + } + + + /************************************************************************** + * + * @Function: + * edt8 + * + * @Description: + * Compute the distance map of the a bitmap. Execute both first and + * second pass of the 8SED algorithm. + * + * @InOut: + * worker:: + * Contains all the relevant parameters. + * + * @Return: + * FreeType error, 0 means success. + * + */ + static FT_Error + edt8( BSDF_Worker* worker ) + { + FT_Error error = FT_Err_Ok; + + + if ( !worker || !worker->distance_map ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + /* first scan of the image */ + first_pass( worker ); + + /* second scan of the image */ + second_pass( worker ); + + Exit: + return error; + } + + + /************************************************************************** + * + * @Function: + * finalize_sdf + * + * @Description: + * Copy the SDF data from `worker->distance_map` to the `target` bitmap. + * Also transform the data to output format, (which is 6.10 fixed-point + * format at the moment). + * + * @Input: + * worker :: + * Contains source distance map and other SDF data. + * + * @Output: + * target :: + * Target bitmap to which the SDF data is copied to. + * + * @Return: + * FreeType error, 0 means success. + * + */ + static FT_Error + finalize_sdf( BSDF_Worker* worker, + const FT_Bitmap* target ) + { + FT_Error error = FT_Err_Ok; + + FT_Int w, r; + FT_Int i, j; + + FT_SDFFormat* t_buffer; + FT_16D16 spread; + + + if ( !worker || !target ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + w = (int)target->width; + r = (int)target->rows; + t_buffer = (FT_SDFFormat*)target->buffer; + + if ( w != worker->width || + r != worker->rows ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + +#if USE_SQUARED_DISTANCES + spread = FT_INT_16D16( worker->params.spread * + worker->params.spread ); +#else + spread = FT_INT_16D16( worker->params.spread ); +#endif + + for ( j = 0; j < r; j++ ) + { + for ( i = 0; i < w; i++ ) + { + FT_Int index; + FT_16D16 dist; + FT_SDFFormat final_dist; + FT_Char sign; + + + index = j * w + i; + dist = worker->distance_map[index].dist; + + if ( dist < 0 || dist > spread ) + dist = spread; + +#if USE_SQUARED_DISTANCES + dist = square_root( dist ); +#endif + + /* We assume that if the pixel is inside a contour */ + /* its coverage value must be > 127. */ + sign = worker->distance_map[index].alpha < 127 ? -1 : 1; + + /* flip the sign according to the property */ + if ( worker->params.flip_sign ) + sign = -sign; + + /* concatenate from 16.16 to appropriate format */ + final_dist = map_fixed_to_sdf( dist * sign, spread ); + + t_buffer[index] = final_dist; + } + } + + Exit: + return error; + } + + + /************************************************************************** + * + * interface functions + * + */ + + /* called when adding a new module through @FT_Add_Module */ + static FT_Error + bsdf_raster_new( FT_Memory memory, + BSDF_PRaster* araster ) + { + FT_Error error; + BSDF_PRaster raster = NULL; + + + if ( !FT_NEW( raster ) ) + raster->memory = memory; + + *araster = raster; + + return error; + } + + + /* unused */ + static void + bsdf_raster_reset( FT_Raster raster, + unsigned char* pool_base, + unsigned long pool_size ) + { + FT_UNUSED( raster ); + FT_UNUSED( pool_base ); + FT_UNUSED( pool_size ); + } + + + /* unused */ + static FT_Error + bsdf_raster_set_mode( FT_Raster raster, + unsigned long mode, + void* args ) + { + FT_UNUSED( raster ); + FT_UNUSED( mode ); + FT_UNUSED( args ); + + return FT_Err_Ok; + } + + + /* called while rendering through @FT_Render_Glyph */ + static FT_Error + bsdf_raster_render( FT_Raster raster, + const FT_Raster_Params* params ) + { + FT_Error error = FT_Err_Ok; + FT_Memory memory = NULL; + + const FT_Bitmap* source = NULL; + const FT_Bitmap* target = NULL; + + BSDF_TRaster* bsdf_raster = (BSDF_TRaster*)raster; + BSDF_Worker worker; + + const SDF_Raster_Params* sdf_params = (const SDF_Raster_Params*)params; + + + worker.distance_map = NULL; + + /* check for valid parameters */ + if ( !raster || !params ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + /* check whether the flag is set */ + if ( sdf_params->root.flags != FT_RASTER_FLAG_SDF ) + { + error = FT_THROW( Raster_Corrupted ); + goto Exit; + } + + source = (const FT_Bitmap*)sdf_params->root.source; + target = (const FT_Bitmap*)sdf_params->root.target; + + /* check source and target bitmap */ + if ( !source || !target ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + memory = bsdf_raster->memory; + if ( !memory ) + { + FT_TRACE0(( "bsdf_raster_render: Raster not set up properly,\n" )); + FT_TRACE0(( " unable to find memory handle.\n" )); + + error = FT_THROW( Invalid_Handle ); + goto Exit; + } + + /* check whether spread is set properly */ + if ( sdf_params->spread > MAX_SPREAD || + sdf_params->spread < MIN_SPREAD ) + { + FT_TRACE0(( "bsdf_raster_render:" + " The `spread' field of `SDF_Raster_Params'\n" )); + FT_TRACE0(( " " + " is invalid; the value of this field must be\n" )); + FT_TRACE0(( " " + " within [%d, %d].\n", + MIN_SPREAD, MAX_SPREAD )); + FT_TRACE0(( " " + " Also, you must pass `SDF_Raster_Params'\n" )); + FT_TRACE0(( " " + " instead of the default `FT_Raster_Params'\n" )); + FT_TRACE0(( " " + " while calling this function and set the fields\n" )); + FT_TRACE0(( " " + " accordingly.\n" )); + + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + /* set up the worker */ + + /* allocate the distance map */ + if ( FT_QALLOC_MULT( worker.distance_map, target->rows, + target->width * sizeof ( *worker.distance_map ) ) ) + goto Exit; + + worker.width = (int)target->width; + worker.rows = (int)target->rows; + worker.params = *sdf_params; + + FT_CALL( bsdf_init_distance_map( source, &worker ) ); + FT_CALL( bsdf_approximate_edge( &worker ) ); + FT_CALL( edt8( &worker ) ); + FT_CALL( finalize_sdf( &worker, target ) ); + + FT_TRACE0(( "bsdf_raster_render: Total memory used = %ld\n", + worker.width * worker.rows * + (long)sizeof ( *worker.distance_map ) )); + + Exit: + if ( worker.distance_map ) + FT_FREE( worker.distance_map ); + + return error; + } + + + /* called while deleting `FT_Library` only if the module is added */ + static void + bsdf_raster_done( FT_Raster raster ) + { + FT_Memory memory = (FT_Memory)((BSDF_TRaster*)raster)->memory; + + + FT_FREE( raster ); + } + + + FT_DEFINE_RASTER_FUNCS( + ft_bitmap_sdf_raster, + + FT_GLYPH_FORMAT_BITMAP, + + (FT_Raster_New_Func) bsdf_raster_new, /* raster_new */ + (FT_Raster_Reset_Func) bsdf_raster_reset, /* raster_reset */ + (FT_Raster_Set_Mode_Func)bsdf_raster_set_mode, /* raster_set_mode */ + (FT_Raster_Render_Func) bsdf_raster_render, /* raster_render */ + (FT_Raster_Done_Func) bsdf_raster_done /* raster_done */ + ) + + +/* END */ diff --git a/src/sdf/ftsdf.c b/src/sdf/ftsdf.c new file mode 100644 index 000000000..f69cf49b4 --- /dev/null +++ b/src/sdf/ftsdf.c @@ -0,0 +1,3872 @@ +/**************************************************************************** + * + * ftsdf.c + * + * Signed Distance Field support for outline fonts (body). + * + * Copyright (C) 2020-2021 by + * David Turner, Robert Wilhelm, and Werner Lemberg. + * + * Written by Anuj Verma. + * + * This file is part of the FreeType project, and may only be used, + * modified, and distributed under the terms of the FreeType project + * license, LICENSE.TXT. By continuing to use, modify, or distribute + * this file you indicate that you have read the license and + * understand and accept it fully. + * + */ + + +#include <freetype/internal/ftobjs.h> +#include <freetype/internal/ftdebug.h> +#include <freetype/ftoutln.h> +#include <freetype/fttrigon.h> +#include <freetype/ftbitmap.h> +#include "ftsdf.h" + +#include "ftsdferrs.h" + + + /************************************************************************** + * + * A brief technical overview of how the SDF rasterizer works + * ---------------------------------------------------------- + * + * [Notes]: + * * SDF stands for Signed Distance Field everywhere. + * + * * This renderer generates SDF directly from outlines. There is + * another renderer called 'bsdf', which converts bitmaps to SDF; see + * file `ftbsdf.c` for more. + * + * * The basic idea of generating the SDF is taken from Viktor Chlumsky's + * research paper. The paper explains both single and multi-channel + * SDF, however, this implementation only generates single-channel SDF. + * + * Chlumsky, Viktor: Shape Decomposition for Multi-channel Distance + * Fields. Master's thesis. Czech Technical University in Prague, + * Faculty of InformationTechnology, 2015. + * + * For more information: https://github.com/Chlumsky/msdfgen + * + * ======================================================================== + * + * Generating SDF from outlines is pretty straightforward. + * + * (1) We have a set of contours that make the outline of a shape/glyph. + * Each contour comprises of several edges, with three types of edges. + * + * * line segments + * * conic Bezier curves + * * cubic Bezier curves + * + * (2) Apart from the outlines we also have a two-dimensional grid, namely + * the bitmap that is used to represent the final SDF data. + * + * (3) In order to generate SDF, our task is to find shortest signed + * distance from each grid point to the outline. The 'signed + * distance' means that if the grid point is filled by any contour + * then its sign is positive, otherwise it is negative. The pseudo + * code is as follows. + * + * ``` + * foreach grid_point (x, y): + * { + * int min_dist = INT_MAX; + * + * foreach contour in outline: + * { + * foreach edge in contour: + * { + * // get shortest distance from point (x, y) to the edge + * d = get_min_dist(x, y, edge); + * + * if (d < min_dist) + * min_dist = d; + * } + * + * bitmap[x, y] = min_dist; + * } + * } + * ``` + * + * (4) After running this algorithm the bitmap contains information about + * the shortest distance from each point to the outline of the shape. + * Of course, while this is the most straightforward way of generating + * SDF, we use various optimizations in our implementation. See the + * `sdf_generate_*' functions in this file for all details. + * + * The optimization currently used by default is subdivision; see + * function `sdf_generate_subdivision` for more. + * + * Also, to see how we compute the shortest distance from a point to + * each type of edge, check out the `get_min_distance_*' functions. + * + */ + + + /************************************************************************** + * + * The macro FT_COMPONENT is used in trace mode. It is an implicit + * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log + * messages during execution. + */ +#undef FT_COMPONENT +#define FT_COMPONENT sdf + + + /************************************************************************** + * + * definitions + * + */ + + /* + * If set to 1, the rasterizer uses Newton-Raphson's method for finding + * the shortest distance from a point to a conic curve. + * + * If set to 0, an analytical method gets used instead, which computes the + * roots of a cubic polynomial to find the shortest distance. However, + * the analytical method can currently underflow; we thus use Newton's + * method by default. + */ +#ifndef USE_NEWTON_FOR_CONIC +#define USE_NEWTON_FOR_CONIC 1 +#endif + + /* + * The number of intervals a Bezier curve gets sampled and checked to find + * the shortest distance. + */ +#define MAX_NEWTON_DIVISIONS 4 + + /* + * The number of steps of Newton's iterations in each interval of the + * Bezier curve. Basically, we run Newton's approximation + * + * x -= Q(t) / Q'(t) + * + * for each division to get the shortest distance. + */ +#define MAX_NEWTON_STEPS 4 + + /* + * The epsilon distance (in 16.16 fractional units) used for corner + * resolving. If the difference of two distances is less than this value + * they will be checked for a corner if they are ambiguous. + */ +#define CORNER_CHECK_EPSILON 32 + +#if 0 + /* + * Coarse grid dimension. Will probably be removed in the future because + * coarse grid optimization is the slowest algorithm. + */ +#define CG_DIMEN 8 +#endif + + + /************************************************************************** + * + * macros + * + */ + +#define MUL_26D6( a, b ) ( ( ( a ) * ( b ) ) / 64 ) +#define VEC_26D6_DOT( p, q ) ( MUL_26D6( p.x, q.x ) + \ + MUL_26D6( p.y, q.y ) ) + + + /************************************************************************** + * + * structures and enums + * + */ + + /************************************************************************** + * + * @Struct: + * SDF_TRaster + * + * @Description: + * This struct is used in place of @FT_Raster and is stored within the + * internal FreeType renderer struct. While rasterizing it is passed to + * the @FT_Raster_RenderFunc function, which then can be used however we + * want. + * + * @Fields: + * memory :: + * Used internally to allocate intermediate memory while raterizing. + * + */ + typedef struct SDF_TRaster_ + { + FT_Memory memory; + + } SDF_TRaster, *SDF_PRaster; + + + /************************************************************************** + * + * @Enum: + * SDF_Edge_Type + * + * @Description: + * Enumeration of all curve types present in fonts. + * + * @Fields: + * SDF_EDGE_UNDEFINED :: + * Undefined edge, simply used to initialize and detect errors. + * + * SDF_EDGE_LINE :: + * Line segment with start and end point. + * + * SDF_EDGE_CONIC :: + * A conic/quadratic Bezier curve with start, end, and one control + * point. + * + * SDF_EDGE_CUBIC :: + * A cubic Bezier curve with start, end, and two control points. + * + */ + typedef enum SDF_Edge_Type_ + { + SDF_EDGE_UNDEFINED = 0, + SDF_EDGE_LINE = 1, + SDF_EDGE_CONIC = 2, + SDF_EDGE_CUBIC = 3 + + } SDF_Edge_Type; + + + /************************************************************************** + * + * @Enum: + * SDF_Contour_Orientation + * + * @Description: + * Enumeration of all orientation values of a contour. We determine the + * orientation by calculating the area covered by a contour. Contrary + * to values returned by @FT_Outline_Get_Orientation, + * `SDF_Contour_Orientation` is independent of the fill rule, which can + * be different for different font formats. + * + * @Fields: + * SDF_ORIENTATION_NONE :: + * Undefined orientation, used for initialization and error detection. + * + * SDF_ORIENTATION_CW :: + * Clockwise orientation (positive area covered). + * + * SDF_ORIENTATION_CCW :: + * Counter-clockwise orientation (negative area covered). + * + * @Note: + * See @FT_Outline_Get_Orientation for more details. + * + */ + typedef enum SDF_Contour_Orientation_ + { + SDF_ORIENTATION_NONE = 0, + SDF_ORIENTATION_CW = 1, + SDF_ORIENTATION_CCW = 2 + + } SDF_Contour_Orientation; + + + /************************************************************************** + * + * @Struct: + * SDF_Edge + * + * @Description: + * Represent an edge of a contour. + * + * @Fields: + * start_pos :: + * Start position of an edge. Valid for all types of edges. + * + * end_pos :: + * Etart position of an edge. Valid for all types of edges. + * + * control_a :: + * A control point of the edge. Valid only for `SDF_EDGE_CONIC` + * and `SDF_EDGE_CUBIC`. + * + * control_b :: + * Another control point of the edge. Valid only for + * `SDF_EDGE_CONIC`. + * + * edge_type :: + * Type of the edge, see @SDF_Edge_Type for all possible edge types. + * + * next :: + * Used to create a singly linked list, which can be interpreted + * as a contour. + * + */ + typedef struct SDF_Edge_ + { + FT_26D6_Vec start_pos; + FT_26D6_Vec end_pos; + FT_26D6_Vec control_a; + FT_26D6_Vec control_b; + + SDF_Edge_Type edge_type; + + struct SDF_Edge_* next; + + } SDF_Edge; + + + /************************************************************************** + * + * @Struct: + * SDF_Contour + * + * @Description: + * Represent a complete contour, which contains a list of edges. + * + * @Fields: + * last_pos :: + * Contains the value of `end_pos' of the last edge in the list of + * edges. Useful while decomposing the outline with + * @FT_Outline_Decompose. + * + * edges :: + * Linked list of all the edges that make the contour. + * + * next :: + * Used to create a singly linked list, which can be interpreted as a + * complete shape or @FT_Outline. + * + */ + typedef struct SDF_Contour_ + { + FT_26D6_Vec last_pos; + SDF_Edge* edges; + + struct SDF_Contour_* next; + + } SDF_Contour; + + + /************************************************************************** + * + * @Struct: + * SDF_Shape + * + * @Description: + * Represent a complete shape, which is the decomposition of + * @FT_Outline. + * + * @Fields: + * memory :: + * Used internally to allocate memory. + * + * contours :: + * Linked list of all the contours that make the shape. + * + */ + typedef struct SDF_Shape_ + { + FT_Memory memory; + SDF_Contour* contours; + + } SDF_Shape; + + + /************************************************************************** + * + * @Struct: + * SDF_Signed_Distance + * + * @Description: + * Represent signed distance of a point, i.e., the distance of the edge + * nearest to the point. + * + * @Fields: + * distance :: + * Distance of the point from the nearest edge. Can be squared or + * absolute depending on the `USE_SQUARED_DISTANCES` macro defined in + * file `ftsdfcommon.h`. + * + * cross :: + * Cross product of the shortest distance vector (i.e., the vector + * from the point to the nearest edge) and the direction of the edge + * at the nearest point. This is used to resolve ambiguities of + * `sign`. + * + * sign :: + * A value used to indicate whether the distance vector is outside or + * inside the contour corresponding to the edge. + * + * @Note: + * `sign` may or may not be correct, therefore it must be checked + * properly in case there is an ambiguity. + * + */ + typedef struct SDF_Signed_Distance_ + { + FT_16D16 distance; + FT_16D16 cross; + FT_Char sign; + + } SDF_Signed_Distance; + + + /************************************************************************** + * + * @Struct: + * SDF_Params + * + * @Description: + * Yet another internal parameters required by the rasterizer. + * + * @Fields: + * orientation :: + * This is not the @SDF_Contour_Orientation value but @FT_Orientation, + * which determines whether clockwise-oriented outlines are to be + * filled or counter-clockwise-oriented ones. + * + * flip_sign :: + * If set to true, flip the sign. By default the points filled by the + * outline are positive. + * + * flip_y :: + * If set to true the output bitmap is upside-down. Can be useful + * because OpenGL and DirectX use different coordinate systems for + * textures. + * + * overload_sign :: + * In the subdivision and bounding box optimization, the default + * outside sign is taken as -1. This parameter can be used to modify + * that behaviour. For example, while generating SDF for a single + * counter-clockwise contour, the outside sign should be 1. + * + */ + typedef struct SDF_Params_ + { + FT_Orientation orientation; + FT_Bool flip_sign; + FT_Bool flip_y; + + FT_Int overload_sign; + + } SDF_Params; + + + /************************************************************************** + * + * constants, initializer, and destructor + * + */ + + static + const FT_Vector zero_vector = { 0, 0 }; + + static + const SDF_Edge null_edge = { { 0, 0 }, { 0, 0 }, + { 0, 0 }, { 0, 0 }, + SDF_EDGE_UNDEFINED, NULL }; + + static + const SDF_Contour null_contour = { { 0, 0 }, NULL, NULL }; + + static + const SDF_Shape null_shape = { NULL, NULL }; + + static + const SDF_Signed_Distance max_sdf = { INT_MAX, 0, 0 }; + + + /* Create a new @SDF_Edge on the heap and assigns the `edge` */ + /* pointer to the newly allocated memory. */ + static FT_Error + sdf_edge_new( FT_Memory memory, + SDF_Edge** edge ) + { + FT_Error error = FT_Err_Ok; + SDF_Edge* ptr = NULL; + + + if ( !memory || !edge ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + if ( !FT_QALLOC( ptr, sizeof ( *ptr ) ) ) + { + *ptr = null_edge; + *edge = ptr; + } + + Exit: + return error; + } + + + /* Free the allocated `edge` variable. */ + static void + sdf_edge_done( FT_Memory memory, + SDF_Edge** edge ) + { + if ( !memory || !edge || !*edge ) + return; + + FT_FREE( *edge ); + } + + + /* Create a new @SDF_Contour on the heap and assign */ + /* the `contour` pointer to the newly allocated memory. */ + static FT_Error + sdf_contour_new( FT_Memory memory, + SDF_Contour** contour ) + { + FT_Error error = FT_Err_Ok; + SDF_Contour* ptr = NULL; + + + if ( !memory || !contour ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + if ( !FT_QALLOC( ptr, sizeof ( *ptr ) ) ) + { + *ptr = null_contour; + *contour = ptr; + } + + Exit: + return error; + } + + + /* Free the allocated `contour` variable. */ + /* Also free the list of edges. */ + static void + sdf_contour_done( FT_Memory memory, + SDF_Contour** contour ) + { + SDF_Edge* edges; + SDF_Edge* temp; + + + if ( !memory || !contour || !*contour ) + return; + + edges = (*contour)->edges; + + /* release all edges */ + while ( edges ) + { + temp = edges; + edges = edges->next; + + sdf_edge_done( memory, &temp ); + } + + FT_FREE( *contour ); + } + + + /* Create a new @SDF_Shape on the heap and assign */ + /* the `shape` pointer to the newly allocated memory. */ + static FT_Error + sdf_shape_new( FT_Memory memory, + SDF_Shape** shape ) + { + FT_Error error = FT_Err_Ok; + SDF_Shape* ptr = NULL; + + + if ( !memory || !shape ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + if ( !FT_QALLOC( ptr, sizeof ( *ptr ) ) ) + { + *ptr = null_shape; + ptr->memory = memory; + *shape = ptr; + } + + Exit: + return error; + } + + + /* Free the allocated `shape` variable. */ + /* Also free the list of contours. */ + static void + sdf_shape_done( SDF_Shape** shape ) + { + FT_Memory memory; + SDF_Contour* contours; + SDF_Contour* temp; + + + if ( !shape || !*shape ) + return; + + memory = (*shape)->memory; + contours = (*shape)->contours; + + if ( !memory ) + return; + + /* release all contours */ + while ( contours ) + { + temp = contours; + contours = contours->next; + + sdf_contour_done( memory, &temp ); + } + + /* release the allocated shape struct */ + FT_FREE( *shape ); + } + + + /************************************************************************** + * + * shape decomposition functions + * + */ + + /* This function is called when starting a new contour at `to`, */ + /* which gets added to the shape's list. */ + static FT_Error + sdf_move_to( const FT_26D6_Vec* to, + void* user ) + { + SDF_Shape* shape = ( SDF_Shape* )user; + SDF_Contour* contour = NULL; + + FT_Error error = FT_Err_Ok; + FT_Memory memory = shape->memory; + + + if ( !to || !user ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + FT_CALL( sdf_contour_new( memory, &contour ) ); + + contour->last_pos = *to; + contour->next = shape->contours; + shape->contours = contour; + + Exit: + return error; + } + + + /* This function is called when there is a line in the */ + /* contour. The line starts at the previous edge point and */ + /* stops at `to`. */ + static FT_Error + sdf_line_to( const FT_26D6_Vec* to, + void* user ) + { + SDF_Shape* shape = ( SDF_Shape* )user; + SDF_Edge* edge = NULL; + SDF_Contour* contour = NULL; + + FT_Error error = FT_Err_Ok; + FT_Memory memory = shape->memory; + + + if ( !to || !user ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + contour = shape->contours; + + if ( contour->last_pos.x == to->x && + contour->last_pos.y == to->y ) + goto Exit; + + FT_CALL( sdf_edge_new( memory, &edge ) ); + + edge->edge_type = SDF_EDGE_LINE; + edge->start_pos = contour->last_pos; + edge->end_pos = *to; + + edge->next = contour->edges; + contour->edges = edge; + contour->last_pos = *to; + + Exit: + return error; + } + + + /* This function is called when there is a conic Bezier curve */ + /* in the contour. The curve starts at the previous edge point */ + /* and stops at `to`, with control point `control_1`. */ + static FT_Error + sdf_conic_to( const FT_26D6_Vec* control_1, + const FT_26D6_Vec* to, + void* user ) + { + SDF_Shape* shape = ( SDF_Shape* )user; + SDF_Edge* edge = NULL; + SDF_Contour* contour = NULL; + + FT_Error error = FT_Err_Ok; + FT_Memory memory = shape->memory; + + + if ( !control_1 || !to || !user ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + contour = shape->contours; + + FT_CALL( sdf_edge_new( memory, &edge ) ); + + edge->edge_type = SDF_EDGE_CONIC; + edge->start_pos = contour->last_pos; + edge->control_a = *control_1; + edge->end_pos = *to; + + edge->next = contour->edges; + contour->edges = edge; + contour->last_pos = *to; + + Exit: + return error; + } + + + /* This function is called when there is a cubic Bezier curve */ + /* in the contour. The curve starts at the previous edge point */ + /* and stops at `to`, with two control points `control_1` and */ + /* `control_2`. */ + static FT_Error + sdf_cubic_to( const FT_26D6_Vec* control_1, + const FT_26D6_Vec* control_2, + const FT_26D6_Vec* to, + void* user ) + { + SDF_Shape* shape = ( SDF_Shape* )user; + SDF_Edge* edge = NULL; + SDF_Contour* contour = NULL; + + FT_Error error = FT_Err_Ok; + FT_Memory memory = shape->memory; + + + if ( !control_2 || !control_1 || !to || !user ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + contour = shape->contours; + + FT_CALL( sdf_edge_new( memory, &edge ) ); + + edge->edge_type = SDF_EDGE_CUBIC; + edge->start_pos = contour->last_pos; + edge->control_a = *control_1; + edge->control_b = *control_2; + edge->end_pos = *to; + + edge->next = contour->edges; + contour->edges = edge; + contour->last_pos = *to; + + Exit: + return error; + } + + + /* Construct the structure to hold all four outline */ + /* decomposition functions. */ + FT_DEFINE_OUTLINE_FUNCS( + sdf_decompose_funcs, + + (FT_Outline_MoveTo_Func) sdf_move_to, /* move_to */ + (FT_Outline_LineTo_Func) sdf_line_to, /* line_to */ + (FT_Outline_ConicTo_Func)sdf_conic_to, /* conic_to */ + (FT_Outline_CubicTo_Func)sdf_cubic_to, /* cubic_to */ + + 0, /* shift */ + 0 /* delta */ + ) + + + /* Decompose `outline` and put it into the `shape` structure. */ + static FT_Error + sdf_outline_decompose( FT_Outline* outline, + SDF_Shape* shape ) + { + FT_Error error = FT_Err_Ok; + + + if ( !outline || !shape ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + error = FT_Outline_Decompose( outline, + &sdf_decompose_funcs, + (void*)shape ); + + Exit: + return error; + } + + + /************************************************************************** + * + * utility functions + * + */ + + /* Return the control box of an edge. The control box is a rectangle */ + /* in which all the control points can fit tightly. */ + static FT_CBox + get_control_box( SDF_Edge edge ) + { + FT_CBox cbox = { 0, 0, 0, 0 }; + FT_Bool is_set = 0; + + + switch ( edge.edge_type ) + { + case SDF_EDGE_CUBIC: + cbox.xMin = edge.control_b.x; + cbox.xMax = edge.control_b.x; + cbox.yMin = edge.control_b.y; + cbox.yMax = edge.control_b.y; + + is_set = 1; + /* fall through */ + + case SDF_EDGE_CONIC: + if ( is_set ) + { + cbox.xMin = edge.control_a.x < cbox.xMin + ? edge.control_a.x + : cbox.xMin; + cbox.xMax = edge.control_a.x > cbox.xMax + ? edge.control_a.x + : cbox.xMax; + + cbox.yMin = edge.control_a.y < cbox.yMin + ? edge.control_a.y + : cbox.yMin; + cbox.yMax = edge.control_a.y > cbox.yMax + ? edge.control_a.y + : cbox.yMax; + } + else + { + cbox.xMin = edge.control_a.x; + cbox.xMax = edge.control_a.x; + cbox.yMin = edge.control_a.y; + cbox.yMax = edge.control_a.y; + + is_set = 1; + } + /* fall through */ + + case SDF_EDGE_LINE: + if ( is_set ) + { + cbox.xMin = edge.start_pos.x < cbox.xMin + ? edge.start_pos.x + : cbox.xMin; + cbox.xMax = edge.start_pos.x > cbox.xMax + ? edge.start_pos.x + : cbox.xMax; + + cbox.yMin = edge.start_pos.y < cbox.yMin + ? edge.start_pos.y + : cbox.yMin; + cbox.yMax = edge.start_pos.y > cbox.yMax + ? edge.start_pos.y + : cbox.yMax; + } + else + { + cbox.xMin = edge.start_pos.x; + cbox.xMax = edge.start_pos.x; + cbox.yMin = edge.start_pos.y; + cbox.yMax = edge.start_pos.y; + } + + cbox.xMin = edge.end_pos.x < cbox.xMin + ? edge.end_pos.x + : cbox.xMin; + cbox.xMax = edge.end_pos.x > cbox.xMax + ? edge.end_pos.x + : cbox.xMax; + + cbox.yMin = edge.end_pos.y < cbox.yMin + ? edge.end_pos.y + : cbox.yMin; + cbox.yMax = edge.end_pos.y > cbox.yMax + ? edge.end_pos.y + : cbox.yMax; + + break; + + default: + break; + } + + return cbox; + } + + + /* Return orientation of a single contour. */ + /* Note that the orientation is independent of the fill rule! */ + /* So, for TTF a clockwise-oriented contour has to be filled */ + /* and the opposite for OTF fonts. */ + static SDF_Contour_Orientation + get_contour_orientation ( SDF_Contour* contour ) + { + SDF_Edge* head = NULL; + FT_26D6 area = 0; + + + /* return none if invalid parameters */ + if ( !contour || !contour->edges ) + return SDF_ORIENTATION_NONE; + + head = contour->edges; + + /* Calculate the area of the control box for all edges. */ + while ( head ) + { + switch ( head->edge_type ) + { + case SDF_EDGE_LINE: + area += MUL_26D6( ( head->end_pos.x - head->start_pos.x ), + ( head->end_pos.y + head->start_pos.y ) ); + break; + + case SDF_EDGE_CONIC: + area += MUL_26D6( head->control_a.x - head->start_pos.x, + head->control_a.y + head->start_pos.y ); + area += MUL_26D6( head->end_pos.x - head->control_a.x, + head->end_pos.y + head->control_a.y ); + break; + + case SDF_EDGE_CUBIC: + area += MUL_26D6( head->control_a.x - head->start_pos.x, + head->control_a.y + head->start_pos.y ); + area += MUL_26D6( head->control_b.x - head->control_a.x, + head->control_b.y + head->control_a.y ); + area += MUL_26D6( head->end_pos.x - head->control_b.x, + head->end_pos.y + head->control_b.y ); + break; + + default: + return SDF_ORIENTATION_NONE; + } + + head = head->next; + } + + /* Clockwise contours cover a positive area, and counter-clockwise */ + /* contours cover a negative area. */ + if ( area > 0 ) + return SDF_ORIENTATION_CW; + else + return SDF_ORIENTATION_CCW; + } + + + /* This function is exactly the same as the one */ + /* in the smooth renderer. It splits a conic */ + /* into two conics exactly half way at t = 0.5. */ + static void + split_conic( FT_26D6_Vec* base ) + { + FT_26D6 a, b; + + + base[4].x = base[2].x; + a = base[0].x + base[1].x; + b = base[1].x + base[2].x; + base[3].x = b / 2; + base[2].x = ( a + b ) / 4; + base[1].x = a / 2; + + base[4].y = base[2].y; + a = base[0].y + base[1].y; + b = base[1].y + base[2].y; + base[3].y = b / 2; + base[2].y = ( a + b ) / 4; + base[1].y = a / 2; + } + + + /* This function is exactly the same as the one */ + /* in the smooth renderer. It splits a cubic */ + /* into two cubics exactly half way at t = 0.5. */ + static void + split_cubic( FT_26D6_Vec* base ) + { + FT_26D6 a, b, c; + + + base[6].x = base[3].x; + a = base[0].x + base[1].x; + b = base[1].x + base[2].x; + c = base[2].x + base[3].x; + base[5].x = c / 2; + c += b; + base[4].x = c / 4; + base[1].x = a / 2; + a += b; + base[2].x = a / 4; + base[3].x = ( a + c ) / 8; + + base[6].y = base[3].y; + a = base[0].y + base[1].y; + b = base[1].y + base[2].y; + c = base[2].y + base[3].y; + base[5].y = c / 2; + c += b; + base[4].y = c / 4; + base[1].y = a / 2; + a += b; + base[2].y = a / 4; + base[3].y = ( a + c ) / 8; + } + + + /* Split a conic Bezier curve into a number of lines */ + /* and add them to `out'. */ + /* */ + /* This function uses recursion; we thus need */ + /* parameter `max_splits' for stopping. */ + static FT_Error + split_sdf_conic( FT_Memory memory, + FT_26D6_Vec* control_points, + FT_Int max_splits, + SDF_Edge** out ) + { + FT_Error error = FT_Err_Ok; + FT_26D6_Vec cpos[5]; + SDF_Edge* left,* right; + + + if ( !memory || !out ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + /* split conic outline */ + cpos[0] = control_points[0]; + cpos[1] = control_points[1]; + cpos[2] = control_points[2]; + + split_conic( cpos ); + + /* If max number of splits is done */ + /* then stop and add the lines to */ + /* the list. */ + if ( max_splits <= 2 ) + goto Append; + + /* Otherwise keep splitting. */ + FT_CALL( split_sdf_conic( memory, &cpos[0], max_splits / 2, out ) ); + FT_CALL( split_sdf_conic( memory, &cpos[2], max_splits / 2, out ) ); + + /* [NOTE]: This is not an efficient way of */ + /* splitting the curve. Check the deviation */ + /* instead and stop if the deviation is less */ + /* than a pixel. */ + + goto Exit; + + Append: + /* Do allocation and add the lines to the list. */ + + FT_CALL( sdf_edge_new( memory, &left ) ); + FT_CALL( sdf_edge_new( memory, &right ) ); + + left->start_pos = cpos[0]; + left->end_pos = cpos[2]; + left->edge_type = SDF_EDGE_LINE; + + right->start_pos = cpos[2]; + right->end_pos = cpos[4]; + right->edge_type = SDF_EDGE_LINE; + + left->next = right; + right->next = (*out); + *out = left; + + Exit: + return error; + } + + + /* Split a cubic Bezier curve into a number of lines */ + /* and add them to `out`. */ + /* */ + /* This function uses recursion; we thus need */ + /* parameter `max_splits' for stopping. */ + static FT_Error + split_sdf_cubic( FT_Memory memory, + FT_26D6_Vec* control_points, + FT_Int max_splits, + SDF_Edge** out ) + { + FT_Error error = FT_Err_Ok; + FT_26D6_Vec cpos[7]; + SDF_Edge* left,* right; + + + if ( !memory || !out ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + /* split the conic */ + cpos[0] = control_points[0]; + cpos[1] = control_points[1]; + cpos[2] = control_points[2]; + cpos[3] = control_points[3]; + + split_cubic( cpos ); + + /* If max number of splits is done */ + /* then stop and add the lines to */ + /* the list. */ + if ( max_splits <= 2 ) + goto Append; + + /* Otherwise keep splitting. */ + FT_CALL( split_sdf_cubic( memory, &cpos[0], max_splits / 2, out ) ); + FT_CALL( split_sdf_cubic( memory, &cpos[3], max_splits / 2, out ) ); + + /* [NOTE]: This is not an efficient way of */ + /* splitting the curve. Check the deviation */ + /* instead and stop if the deviation is less */ + /* than a pixel. */ + + goto Exit; + + Append: + /* Do allocation and add the lines to the list. */ + + FT_CALL( sdf_edge_new( memory, &left) ); + FT_CALL( sdf_edge_new( memory, &right) ); + + left->start_pos = cpos[0]; + left->end_pos = cpos[3]; + left->edge_type = SDF_EDGE_LINE; + + right->start_pos = cpos[3]; + right->end_pos = cpos[6]; + right->edge_type = SDF_EDGE_LINE; + + left->next = right; + right->next = (*out); + *out = left; + + Exit: + return error; + } + + + /* Subdivide an entire shape into line segments */ + /* such that it doesn't look visually different */ + /* from the original curve. */ + static FT_Error + split_sdf_shape( SDF_Shape* shape ) + { + FT_Error error = FT_Err_Ok; + FT_Memory memory; + + SDF_Contour* contours; + SDF_Contour* new_contours = NULL; + + + if ( !shape || !shape->memory ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + contours = shape->contours; + memory = shape->memory; + + /* for each contour */ + while ( contours ) + { + SDF_Edge* edges = contours->edges; + SDF_Edge* new_edges = NULL; + + SDF_Contour* tempc; + + + /* for each edge */ + while ( edges ) + { + SDF_Edge* edge = edges; + SDF_Edge* temp; + + switch ( edge->edge_type ) + { + case SDF_EDGE_LINE: + /* Just create a duplicate edge in case */ + /* it is a line. We can use the same edge. */ + FT_CALL( sdf_edge_new( memory, &temp ) ); + + ft_memcpy( temp, edge, sizeof ( *edge ) ); + + temp->next = new_edges; + new_edges = temp; + break; + + case SDF_EDGE_CONIC: + /* Subdivide the curve and add it to the list. */ + { + FT_26D6_Vec ctrls[3]; + + + ctrls[0] = edge->start_pos; + ctrls[1] = edge->control_a; + ctrls[2] = edge->end_pos; + + error = split_sdf_conic( memory, ctrls, 32, &new_edges ); + } + break; + + case SDF_EDGE_CUBIC: + /* Subdivide the curve and add it to the list. */ + { + FT_26D6_Vec ctrls[4]; + + + ctrls[0] = edge->start_pos; + ctrls[1] = edge->control_a; + ctrls[2] = edge->control_b; + ctrls[3] = edge->end_pos; + + error = split_sdf_cubic( memory, ctrls, 32, &new_edges ); + } + break; + + default: + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + edges = edges->next; + } + + /* add to the contours list */ + FT_CALL( sdf_contour_new( memory, &tempc ) ); + + tempc->next = new_contours; + tempc->edges = new_edges; + new_contours = tempc; + new_edges = NULL; + + /* deallocate the contour */ + tempc = contours; + contours = contours->next; + + sdf_contour_done( memory, &tempc ); + } + + shape->contours = new_contours; + + Exit: + return error; + } + + + /************************************************************************** + * + * for debugging + * + */ + +#ifdef FT_DEBUG_LEVEL_TRACE + + static void + sdf_shape_dump( SDF_Shape* shape ) + { + FT_UInt num_contours = 0; + + FT_UInt total_edges = 0; + FT_UInt total_lines = 0; + FT_UInt total_conic = 0; + FT_UInt total_cubic = 0; + + SDF_Contour* contour_list; + + + if ( !shape ) + { + FT_TRACE5(( "sdf_shape_dump: null shape\n" )); + return; + } + + contour_list = shape->contours; + + FT_TRACE5(( "sdf_shape_dump (values are in 26.6 format):\n" )); + + while ( contour_list ) + { + FT_UInt num_edges = 0; + SDF_Edge* edge_list; + SDF_Contour* contour = contour_list; + + + FT_TRACE5(( " Contour %d\n", num_contours )); + + edge_list = contour->edges; + + while ( edge_list ) + { + SDF_Edge* edge = edge_list; + + + FT_TRACE5(( " %3d: ", num_edges )); + + switch ( edge->edge_type ) + { + case SDF_EDGE_LINE: + FT_TRACE5(( "Line: (%ld, %ld) -- (%ld, %ld)\n", + edge->start_pos.x, edge->start_pos.y, + edge->end_pos.x, edge->end_pos.y )); + total_lines++; + break; + + case SDF_EDGE_CONIC: + FT_TRACE5(( "Conic: (%ld, %ld) .. (%ld, %ld) .. (%ld, %ld)\n", + edge->start_pos.x, edge->start_pos.y, + edge->control_a.x, edge->control_a.y, + edge->end_pos.x, edge->end_pos.y )); + total_conic++; + break; + + case SDF_EDGE_CUBIC: + FT_TRACE5(( "Cubic: (%ld, %ld) .. (%ld, %ld)" + " .. (%ld, %ld) .. (%ld %ld)\n", + edge->start_pos.x, edge->start_pos.y, + edge->control_a.x, edge->control_a.y, + edge->control_b.x, edge->control_b.y, + edge->end_pos.x, edge->end_pos.y )); + total_cubic++; + break; + + default: + break; + } + + num_edges++; + total_edges++; + edge_list = edge_list->next; + } + + num_contours++; + contour_list = contour_list->next; + } + + FT_TRACE5(( "\n" )); + FT_TRACE5(( " total number of contours = %d\n", num_contours )); + FT_TRACE5(( " total number of edges = %d\n", total_edges )); + FT_TRACE5(( " |__lines = %d\n", total_lines )); + FT_TRACE5(( " |__conic = %d\n", total_conic )); + FT_TRACE5(( " |__cubic = %d\n", total_cubic )); + } + +#endif /* FT_DEBUG_LEVEL_TRACE */ + + + /************************************************************************** + * + * math functions + * + */ + +#if !USE_NEWTON_FOR_CONIC + + /* [NOTE]: All the functions below down until rasterizer */ + /* can be avoided if we decide to subdivide the */ + /* curve into lines. */ + + /* This function uses Newton's iteration to find */ + /* the cube root of a fixed-point integer. */ + static FT_16D16 + cube_root( FT_16D16 val ) + { + /* [IMPORTANT]: This function is not good as it may */ + /* not break, so use a lookup table instead. Or we */ + /* can use an algorithm similar to `square_root`. */ + + FT_Int v, g, c; + + + if ( val == 0 || + val == -FT_INT_16D16( 1 ) || + val == FT_INT_16D16( 1 ) ) + return val; + + v = val < 0 ? -val : val; + g = square_root( v ); + c = 0; + + while ( 1 ) + { + c = FT_MulFix( FT_MulFix( g, g ), g ) - v; + c = FT_DivFix( c, 3 * FT_MulFix( g, g ) ); + + g -= c; + + if ( ( c < 0 ? -c : c ) < 30 ) + break; + } + + return val < 0 ? -g : g; + } + + + /* Calculate the perpendicular by using '1 - base^2'. */ + /* Then use arctan to compute the angle. */ + static FT_16D16 + arc_cos( FT_16D16 val ) + { + FT_16D16 p; + FT_16D16 b = val; + FT_16D16 one = FT_INT_16D16( 1 ); + + + if ( b > one ) + b = one; + if ( b < -one ) + b = -one; + + p = one - FT_MulFix( b, b ); + p = square_root( p ); + + return FT_Atan2( b, p ); + } + + + /* Compute roots of a quadratic polynomial, assign them to `out`, */ + /* and return number of real roots. */ + /* */ + /* The procedure can be found at */ + /* */ + /* https://mathworld.wolfram.com/QuadraticFormula.html */ + static FT_UShort + solve_quadratic_equation( FT_26D6 a, + FT_26D6 b, + FT_26D6 c, + FT_16D16 out[2] ) + { + FT_16D16 discriminant = 0; + + + a = FT_26D6_16D16( a ); + b = FT_26D6_16D16( b ); + c = FT_26D6_16D16( c ); + + if ( a == 0 ) + { + if ( b == 0 ) + return 0; + else + { + out[0] = FT_DivFix( -c, b ); + + return 1; + } + } + + discriminant = FT_MulFix( b, b ) - 4 * FT_MulFix( a, c ); + + if ( discriminant < 0 ) + return 0; + else if ( discriminant == 0 ) + { + out[0] = FT_DivFix( -b, 2 * a ); + + return 1; + } + else + { + discriminant = square_root( discriminant ); + + out[0] = FT_DivFix( -b + discriminant, 2 * a ); + out[1] = FT_DivFix( -b - discriminant, 2 * a ); + + return 2; + } + } + + + /* Compute roots of a cubic polynomial, assign them to `out`, */ + /* and return number of real roots. */ + /* */ + /* The procedure can be found at */ + /* */ + /* https://mathworld.wolfram.com/CubicFormula.html */ + static FT_UShort + solve_cubic_equation( FT_26D6 a, + FT_26D6 b, + FT_26D6 c, + FT_26D6 d, + FT_16D16 out[3] ) + { + FT_16D16 q = 0; /* intermediate */ + FT_16D16 r = 0; /* intermediate */ + + FT_16D16 a2 = b; /* x^2 coefficients */ + FT_16D16 a1 = c; /* x coefficients */ + FT_16D16 a0 = d; /* constant */ + + FT_16D16 q3 = 0; + FT_16D16 r2 = 0; + FT_16D16 a23 = 0; + FT_16D16 a22 = 0; + FT_16D16 a1x2 = 0; + + + /* cutoff value for `a` to be a cubic, otherwise solve quadratic */ + if ( a == 0 || FT_ABS( a ) < 16 ) + return solve_quadratic_equation( b, c, d, out ); + + if ( d == 0 ) + { + out[0] = 0; + + return solve_quadratic_equation( a, b, c, out + 1 ) + 1; + } + + /* normalize the coefficients; this also makes them 16.16 */ + a2 = FT_DivFix( a2, a ); + a1 = FT_DivFix( a1, a ); + a0 = FT_DivFix( a0, a ); + + /* compute intermediates */ + a1x2 = FT_MulFix( a1, a2 ); + a22 = FT_MulFix( a2, a2 ); + a23 = FT_MulFix( a22, a2 ); + + q = ( 3 * a1 - a22 ) / 9; + r = ( 9 * a1x2 - 27 * a0 - 2 * a23 ) / 54; + + /* [BUG]: `q3` and `r2` still cause underflow. */ + + q3 = FT_MulFix( q, q ); + q3 = FT_MulFix( q3, q ); + + r2 = FT_MulFix( r, r ); + + if ( q3 < 0 && r2 < -q3 ) + { + FT_16D16 t = 0; + + + q3 = square_root( -q3 ); + t = FT_DivFix( r, q3 ); + + if ( t > ( 1 << 16 ) ) + t = ( 1 << 16 ); + if ( t < -( 1 << 16 ) ) + t = -( 1 << 16 ); + + t = arc_cos( t ); + a2 /= 3; + q = 2 * square_root( -q ); + + out[0] = FT_MulFix( q, FT_Cos( t / 3 ) ) - a2; + out[1] = FT_MulFix( q, FT_Cos( ( t + FT_ANGLE_PI * 2 ) / 3 ) ) - a2; + out[2] = FT_MulFix( q, FT_Cos( ( t + FT_ANGLE_PI * 4 ) / 3 ) ) - a2; + + return 3; + } + + else if ( r2 == -q3 ) + { + FT_16D16 s = 0; + + + s = cube_root( r ); + a2 /= -3; + + out[0] = a2 + ( 2 * s ); + out[1] = a2 - s; + + return 2; + } + + else + { + FT_16D16 s = 0; + FT_16D16 t = 0; + FT_16D16 dis = 0; + + + if ( q3 == 0 ) + dis = FT_ABS( r ); + else + dis = square_root( q3 + r2 ); + + s = cube_root( r + dis ); + t = cube_root( r - dis ); + a2 /= -3; + out[0] = ( a2 + ( s + t ) ); + + return 1; + } + } + +#endif /* !USE_NEWTON_FOR_CONIC */ + + + /*************************************************************************/ + /*************************************************************************/ + /** **/ + /** RASTERIZER **/ + /** **/ + /*************************************************************************/ + /*************************************************************************/ + + /************************************************************************** + * + * @Function: + * resolve_corner + * + * @Description: + * At some places on the grid two edges can give opposite directions; + * this happens when the closest point is on one of the endpoint. In + * that case we need to check the proper sign. + * + * This can be visualized by an example: + * + * ``` + * x + * + * o + * ^ \ + * / \ + * / \ + * (a) / \ (b) + * / \ + * / \ + * / v + * ``` + * + * Suppose `x` is the point whose shortest distance from an arbitrary + * contour we want to find out. It is clear that `o` is the nearest + * point on the contour. Now to determine the sign we do a cross + * product of the shortest distance vector and the edge direction, i.e., + * + * ``` + * => sign = cross(x - o, direction(a)) + * ``` + * + * Using the right hand thumb rule we can see that the sign will be + * positive. + * + * If we use `b', however, we have + * + * ``` + * => sign = cross(x - o, direction(b)) + * ``` + * + * In this case the sign will be negative. To determine the correct + * sign we thus divide the plane in two halves and check which plane the + * point lies in. + * + * ``` + * | + * x | + * | + * o + * ^|\ + * / | \ + * / | \ + * (a) / | \ (b) + * / | \ + * / \ + * / v + * ``` + * + * We can see that `x` lies in the plane of `a`, so we take the sign + * determined by `a`. This test can be easily done by calculating the + * orthogonality and taking the greater one. + * + * The orthogonality is simply the sinus of the two vectors (i.e., + * x - o) and the corresponding direction. We efficiently pre-compute + * the orthogonality with the corresponding `get_min_distance_*` + * functions. + * + * @Input: + * sdf1 :: + * First signed distance (can be any of `a` or `b`). + * + * sdf1 :: + * Second signed distance (can be any of `a` or `b`). + * + * @Return: + * The correct signed distance, which is computed by using the above + * algorithm. + * + * @Note: + * The function does not care about the actual distance, it simply + * returns the signed distance which has a larger cross product. As a + * consequence, this function should not be used if the two distances + * are fairly apart. In that case simply use the signed distance with + * a shorter absolute distance. + * + */ + static SDF_Signed_Distance + resolve_corner( SDF_Signed_Distance sdf1, + SDF_Signed_Distance sdf2 ) + { + return FT_ABS( sdf1.cross ) > FT_ABS( sdf2.cross ) ? sdf1 : sdf2; + } + + + /************************************************************************** + * + * @Function: + * get_min_distance_line + * + * @Description: + * Find the shortest distance from the `line` segment to a given `point` + * and assign it to `out`. Use it for line segments only. + * + * @Input: + * line :: + * The line segment to which the shortest distance is to be computed. + * + * point :: + * Point from which the shortest distance is to be computed. + * + * @Output: + * out :: + * Signed distance from `point` to `line`. + * + * @Return: + * FreeType error, 0 means success. + * + * @Note: + * The `line' parameter must have an edge type of `SDF_EDGE_LINE`. + * + */ + static FT_Error + get_min_distance_line( SDF_Edge* line, + FT_26D6_Vec point, + SDF_Signed_Distance* out ) + { + /* + * In order to calculate the shortest distance from a point to + * a line segment, we do the following. Let's assume that + * + * ``` + * a = start point of the line segment + * b = end point of the line segment + * p = point from which shortest distance is to be calculated + * ``` + * + * (1) Write the parametric equation of the line. + * + * ``` + * point_on_line = a + (b - a) * t (t is the factor) + * ``` + * + * (2) Find the projection of point `p` on the line. The projection + * will be perpendicular to the line, which allows us to get the + * solution by making the dot product zero. + * + * ``` + * (point_on_line - a) . (p - point_on_line) = 0 + * + * (point_on_line) + * (a) x-------o----------------x (b) + * |_| + * | + * | + * (p) + * ``` + * + * (3) Simplification of the above equation yields the factor of + * `point_on_line`: + * + * ``` + * t = ((p - a) . (b - a)) / |b - a|^2 + * ``` + * + * (4) We clamp factor `t` between [0.0f, 1.0f] because `point_on_line` + * can be outside of the line segment: + * + * ``` + * (point_on_line) + * (a) x------------------------x (b) -----o--- + * |_| + * | + * | + * (p) + * ``` + * + * (5) Finally, the distance we are interested in is + * + * ``` + * |point_on_line - p| + * ``` + */ + + FT_Error error = FT_Err_Ok; + + FT_Vector a; /* start position */ + FT_Vector b; /* end position */ + FT_Vector p; /* current point */ + + FT_26D6_Vec line_segment; /* `b` - `a` */ + FT_26D6_Vec p_sub_a; /* `p` - `a` */ + + FT_26D6 sq_line_length; /* squared length of `line_segment` */ + FT_16D16 factor; /* factor of the nearest point */ + FT_26D6 cross; /* used to determine sign */ + + FT_16D16_Vec nearest_point; /* `point_on_line` */ + FT_16D16_Vec nearest_vector; /* `p` - `nearest_point` */ + + + if ( !line || !out ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + if ( line->edge_type != SDF_EDGE_LINE ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + a = line->start_pos; + b = line->end_pos; + p = point; + + line_segment.x = b.x - a.x; + line_segment.y = b.y - a.y; + + p_sub_a.x = p.x - a.x; + p_sub_a.y = p.y - a.y; + + sq_line_length = ( line_segment.x * line_segment.x ) / 64 + + ( line_segment.y * line_segment.y ) / 64; + + /* currently factor is 26.6 */ + factor = ( p_sub_a.x * line_segment.x ) / 64 + + ( p_sub_a.y * line_segment.y ) / 64; + + /* now factor is 16.16 */ + factor = FT_DivFix( factor, sq_line_length ); + + /* clamp the factor between 0.0 and 1.0 in fixed point */ + if ( factor > FT_INT_16D16( 1 ) ) + factor = FT_INT_16D16( 1 ); + if ( factor < 0 ) + factor = 0; + + nearest_point.x = FT_MulFix( FT_26D6_16D16( line_segment.x ), + factor ); + nearest_point.y = FT_MulFix( FT_26D6_16D16( line_segment.y ), + factor ); + + nearest_point.x = FT_26D6_16D16( a.x ) + nearest_point.x; + nearest_point.y = FT_26D6_16D16( a.y ) + nearest_point.y; + + nearest_vector.x = nearest_point.x - FT_26D6_16D16( p.x ); + nearest_vector.y = nearest_point.y - FT_26D6_16D16( p.y ); + + cross = FT_MulFix( nearest_vector.x, line_segment.y ) - + FT_MulFix( nearest_vector.y, line_segment.x ); + + /* assign the output */ + out->sign = cross < 0 ? 1 : -1; + out->distance = VECTOR_LENGTH_16D16( nearest_vector ); + + /* Instead of finding `cross` for checking corner we */ + /* directly set it here. This is more efficient */ + /* because if the distance is perpendicular we can */ + /* directly set it to 1. */ + if ( factor != 0 && factor != FT_INT_16D16( 1 ) ) + out->cross = FT_INT_16D16( 1 ); + else + { + /* [OPTIMIZATION]: Pre-compute this direction. */ + /* If not perpendicular then compute `cross`. */ + FT_Vector_NormLen( &line_segment ); + FT_Vector_NormLen( &nearest_vector ); + + out->cross = FT_MulFix( line_segment.x, nearest_vector.y ) - + FT_MulFix( line_segment.y, nearest_vector.x ); + } + + Exit: + return error; + } + + + /************************************************************************** + * + * @Function: + * get_min_distance_conic + * + * @Description: + * Find the shortest distance from the `conic` Bezier curve to a given + * `point` and assign it to `out`. Use it for conic/quadratic curves + * only. + * + * @Input: + * conic :: + * The conic Bezier curve to which the shortest distance is to be + * computed. + * + * point :: + * Point from which the shortest distance is to be computed. + * + * @Output: + * out :: + * Signed distance from `point` to `conic`. + * + * @Return: + * FreeType error, 0 means success. + * + * @Note: + * The `conic` parameter must have an edge type of `SDF_EDGE_CONIC`. + * + */ + +#if !USE_NEWTON_FOR_CONIC + + /* + * The function uses an analytical method to find the shortest distance + * which is faster than the Newton-Raphson method, but has underflows at + * the moment. Use Newton's method if you can see artifacts in the SDF. + */ + static FT_Error + get_min_distance_conic( SDF_Edge* conic, + FT_26D6_Vec point, + SDF_Signed_Distance* out ) + { + /* + * The procedure to find the shortest distance from a point to a + * quadratic Bezier curve is similar to the line segment algorithm. The + * shortest distance is perpendicular to the Bezier curve; the only + * difference from line is that there can be more than one + * perpendicular, and we also have to check the endpoints, because the + * perpendicular may not be the shortest. + * + * Let's assume that + * ``` + * p0 = first endpoint + * p1 = control point + * p2 = second endpoint + * p = point from which shortest distance is to be calculated + * ``` + * + * (1) The equation of a quadratic Bezier curve can be written as + * + * ``` + * B(t) = (1 - t)^2 * p0 + 2(1 - t)t * p1 + t^2 * p2 + * ``` + * + * with `t` a factor in the range [0.0f, 1.0f]. This equation can + * be rewritten as + * + * ``` + * B(t) = t^2 * (p0 - 2p1 + p2) + 2t * (p1 - p0) + p0 + * ``` + * + * With + * + * ``` + * A = p0 - 2p1 + p2 + * B = p1 - p0 + * ``` + * + * we have + * + * ``` + * B(t) = t^2 * A + 2t * B + p0 + * ``` + * + * (2) The derivative of the last equation above is + * + * ``` + * B'(t) = 2 *(tA + B) + * ``` + * + * (3) To find the shortest distance from `p` to `B(t)` we find the + * point on the curve at which the shortest distance vector (i.e., + * `B(t) - p`) and the direction (i.e., `B'(t)`) make 90 degrees. + * In other words, we make the dot product zero. + * + * ``` + * (B(t) - p) . (B'(t)) = 0 + * (t^2 * A + 2t * B + p0 - p) . (2 * (tA + B)) = 0 + * ``` + * + * After simplifying we get a cubic equation + * + * ``` + * at^3 + bt^2 + ct + d = 0 + * ``` + * + * with + * + * ``` + * a = A.A + * b = 3A.B + * c = 2B.B + A.p0 - A.p + * d = p0.B - p.B + * ``` + * + * (4) Now the roots of the equation can be computed using 'Cardano's + * Cubic formula'; we clamp the roots in the range [0.0f, 1.0f]. + * + * [note]: `B` and `B(t)` are different in the above equations. + */ + + FT_Error error = FT_Err_Ok; + + FT_26D6_Vec aA, bB; /* A, B in the above comment */ + FT_26D6_Vec nearest_point; /* point on curve nearest to `point` */ + FT_26D6_Vec direction; /* direction of curve at `nearest_point` */ + + FT_26D6_Vec p0, p1, p2; /* control points of a conic curve */ + FT_26D6_Vec p; /* `point` to which shortest distance */ + + FT_26D6 a, b, c, d; /* cubic coefficients */ + + FT_16D16 roots[3] = { 0, 0, 0 }; /* real roots of the cubic eq. */ + FT_16D16 min_factor; /* factor at `nearest_point` */ + FT_16D16 cross; /* to determine the sign */ + FT_16D16 min = FT_INT_MAX; /* shortest squared distance */ + + FT_UShort num_roots; /* number of real roots of cubic */ + FT_UShort i; + + + if ( !conic || !out ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + if ( conic->edge_type != SDF_EDGE_CONIC ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + p0 = conic->start_pos; + p1 = conic->control_a; + p2 = conic->end_pos; + p = point; + + /* compute substitution coefficients */ + aA.x = p0.x - 2 * p1.x + p2.x; + aA.y = p0.y - 2 * p1.y + p2.y; + + bB.x = p1.x - p0.x; + bB.y = p1.y - p0.y; + + /* compute cubic coefficients */ + a = VEC_26D6_DOT( aA, aA ); + + b = 3 * VEC_26D6_DOT( aA, bB ); + + c = 2 * VEC_26D6_DOT( bB, bB ) + + VEC_26D6_DOT( aA, p0 ) - + VEC_26D6_DOT( aA, p ); + + d = VEC_26D6_DOT( p0, bB ) - + VEC_26D6_DOT( p, bB ); + + /* find the roots */ + num_roots = solve_cubic_equation( a, b, c, d, roots ); + + if ( num_roots == 0 ) + { + roots[0] = 0; + roots[1] = FT_INT_16D16( 1 ); + num_roots = 2; + } + + /* [OPTIMIZATION]: Check the roots, clamp them and discard */ + /* duplicate roots. */ + + /* convert these values to 16.16 for further computation */ + aA.x = FT_26D6_16D16( aA.x ); + aA.y = FT_26D6_16D16( aA.y ); + + bB.x = FT_26D6_16D16( bB.x ); + bB.y = FT_26D6_16D16( bB.y ); + + p0.x = FT_26D6_16D16( p0.x ); + p0.y = FT_26D6_16D16( p0.y ); + + p.x = FT_26D6_16D16( p.x ); + p.y = FT_26D6_16D16( p.y ); + + for ( i = 0; i < num_roots; i++ ) + { + FT_16D16 t = roots[i]; + FT_16D16 t2 = 0; + FT_16D16 dist = 0; + + FT_16D16_Vec curve_point; + FT_16D16_Vec dist_vector; + + /* + * Ideally we should discard the roots which are outside the range + * [0.0, 1.0] and check the endpoints of the Bezier curve, but Behdad + * Esfahbod proved the following lemma. + * + * Lemma: + * + * (1) If the closest point on the curve [0, 1] is to the endpoint at + * `t` = 1 and the cubic has no real roots at `t` = 1 then the + * cubic must have a real root at some `t` > 1. + * + * (2) Similarly, if the closest point on the curve [0, 1] is to the + * endpoint at `t` = 0 and the cubic has no real roots at `t` = 0 + * then the cubic must have a real root at some `t` < 0. + * + * Now because of this lemma we only need to clamp the roots and that + * will take care of the endpoints. + * + * For more details see + * + * https://lists.nongnu.org/archive/html/freetype-devel/2020-06/msg00147.html + */ + + if ( t < 0 ) + t = 0; + if ( t > FT_INT_16D16( 1 ) ) + t = FT_INT_16D16( 1 ); + + t2 = FT_MulFix( t, t ); + + /* B(t) = t^2 * A + 2t * B + p0 - p */ + curve_point.x = FT_MulFix( aA.x, t2 ) + + 2 * FT_MulFix( bB.x, t ) + p0.x; + curve_point.y = FT_MulFix( aA.y, t2 ) + + 2 * FT_MulFix( bB.y, t ) + p0.y; + + /* `curve_point` - `p` */ + dist_vector.x = curve_point.x - p.x; + dist_vector.y = curve_point.y - p.y; + + dist = VECTOR_LENGTH_16D16( dist_vector ); + + if ( dist < min ) + { + min = dist; + nearest_point = curve_point; + min_factor = t; + } + } + + /* B'(t) = 2 * (tA + B) */ + direction.x = 2 * FT_MulFix( aA.x, min_factor ) + 2 * bB.x; + direction.y = 2 * FT_MulFix( aA.y, min_factor ) + 2 * bB.y; + + /* determine the sign */ + cross = FT_MulFix( nearest_point.x - p.x, direction.y ) - + FT_MulFix( nearest_point.y - p.y, direction.x ); + + /* assign the values */ + out->distance = min; + out->sign = cross < 0 ? 1 : -1; + + if ( min_factor != 0 && min_factor != FT_INT_16D16( 1 ) ) + out->cross = FT_INT_16D16( 1 ); /* the two are perpendicular */ + else + { + /* convert to nearest vector */ + nearest_point.x -= FT_26D6_16D16( p.x ); + nearest_point.y -= FT_26D6_16D16( p.y ); + + /* compute `cross` if not perpendicular */ + FT_Vector_NormLen( &direction ); + FT_Vector_NormLen( &nearest_point ); + + out->cross = FT_MulFix( direction.x, nearest_point.y ) - + FT_MulFix( direction.y, nearest_point.x ); + } + + Exit: + return error; + } + +#else /* USE_NEWTON_FOR_CONIC */ + + /* + * The function uses Newton's approximation to find the shortest distance, + * which is a bit slower than the analytical method but doesn't cause + * underflow. + */ + static FT_Error + get_min_distance_conic( SDF_Edge* conic, + FT_26D6_Vec point, + SDF_Signed_Distance* out ) + { + /* + * This method uses Newton-Raphson's approximation to find the shortest + * distance from a point to a conic curve. It does not involve solving + * any cubic equation, that is why there is no risk of underflow. + * + * Let's assume that + * + * ``` + * p0 = first endpoint + * p1 = control point + * p3 = second endpoint + * p = point from which shortest distance is to be calculated + * ``` + * + * (1) The equation of a quadratic Bezier curve can be written as + * + * ``` + * B(t) = (1 - t)^2 * p0 + 2(1 - t)t * p1 + t^2 * p2 + * ``` + * + * with `t` the factor in the range [0.0f, 1.0f]. The above + * equation can be rewritten as + * + * ``` + * B(t) = t^2 * (p0 - 2p1 + p2) + 2t * (p1 - p0) + p0 + * ``` + * + * With + * + * ``` + * A = p0 - 2p1 + p2 + * B = 2 * (p1 - p0) + * ``` + * + * we have + * + * ``` + * B(t) = t^2 * A + t * B + p0 + * ``` + * + * (2) The derivative of the above equation is + * + * ``` + * B'(t) = 2t * A + B + * ``` + * + * (3) The second derivative of the above equation is + * + * ``` + * B''(t) = 2A + * ``` + * + * (4) The equation `P(t)` of the distance from point `p` to the curve + * can be written as + * + * ``` + * P(t) = t^2 * A + t^2 * B + p0 - p + * ``` + * + * With + * + * ``` + * C = p0 - p + * ``` + * + * we have + * + * ``` + * P(t) = t^2 * A + t * B + C + * ``` + * + * (5) Finally, the equation of the angle between `B(t)` and `P(t)` can + * be written as + * + * ``` + * Q(t) = P(t) . B'(t) + * ``` + * + * (6) Our task is to find a value of `t` such that the above equation + * `Q(t)` becomes zero, this is, the point-to-curve vector makes + * 90~degrees with the curve. We solve this with the Newton-Raphson + * method. + * + * (7) We first assume an arbitary value of factor `t`, which we then + * improve. + * + * ``` + * t := Q(t) / Q'(t) + * ``` + * + * Putting the value of `Q(t)` from the above equation gives + * + * ``` + * t := P(t) . B'(t) / derivative(P(t) . B'(t)) + * t := P(t) . B'(t) / + * (P'(t) . B'(t) + P(t) . B''(t)) + * ``` + * + * Note that `P'(t)` is the same as `B'(t)` because the constant is + * gone due to the derivative. + * + * (8) Finally we get the equation to improve the factor as + * + * ``` + * t := P(t) . B'(t) / + * (B'(t) . B'(t) + P(t) . B''(t)) + * ``` + * + * [note]: `B` and `B(t)` are different in the above equations. + */ + + FT_Error error = FT_Err_Ok; + + FT_26D6_Vec aA, bB, cC; /* A, B, C in the above comment */ + FT_26D6_Vec nearest_point; /* point on curve nearest to `point` */ + FT_26D6_Vec direction; /* direction of curve at `nearest_point` */ + + FT_26D6_Vec p0, p1, p2; /* control points of a conic curve */ + FT_26D6_Vec p; /* `point` to which shortest distance */ + + FT_16D16 min_factor = 0; /* factor at `nearest_point' */ + FT_16D16 cross; /* to determine the sign */ + FT_16D16 min = FT_INT_MAX; /* shortest squared distance */ + + FT_UShort iterations; + FT_UShort steps; + + + if ( !conic || !out ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + if ( conic->edge_type != SDF_EDGE_CONIC ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + p0 = conic->start_pos; + p1 = conic->control_a; + p2 = conic->end_pos; + p = point; + + /* compute substitution coefficients */ + aA.x = p0.x - 2 * p1.x + p2.x; + aA.y = p0.y - 2 * p1.y + p2.y; + + bB.x = 2 * ( p1.x - p0.x ); + bB.y = 2 * ( p1.y - p0.y ); + + cC.x = p0.x; + cC.y = p0.y; + + /* do Newton's iterations */ + for ( iterations = 0; iterations <= MAX_NEWTON_DIVISIONS; iterations++ ) + { + FT_16D16 factor = FT_INT_16D16( iterations ) / MAX_NEWTON_DIVISIONS; + FT_16D16 factor2; + FT_16D16 length; + + FT_16D16_Vec curve_point; /* point on the curve */ + FT_16D16_Vec dist_vector; /* `curve_point` - `p` */ + + FT_26D6_Vec d1; /* first derivative */ + FT_26D6_Vec d2; /* second derivative */ + + FT_16D16 temp1; + FT_16D16 temp2; + + + for ( steps = 0; steps < MAX_NEWTON_STEPS; steps++ ) + { + factor2 = FT_MulFix( factor, factor ); + + /* B(t) = t^2 * A + t * B + p0 */ + curve_point.x = FT_MulFix( aA.x, factor2 ) + + FT_MulFix( bB.x, factor ) + cC.x; + curve_point.y = FT_MulFix( aA.y, factor2 ) + + FT_MulFix( bB.y, factor ) + cC.y; + + /* convert to 16.16 */ + curve_point.x = FT_26D6_16D16( curve_point.x ); + curve_point.y = FT_26D6_16D16( curve_point.y ); + + /* P(t) in the comment */ + dist_vector.x = curve_point.x - FT_26D6_16D16( p.x ); + dist_vector.y = curve_point.y - FT_26D6_16D16( p.y ); + + length = VECTOR_LENGTH_16D16( dist_vector ); + + if ( length < min ) + { + min = length; + min_factor = factor; + nearest_point = curve_point; + } + + /* This is Newton's approximation. */ + /* */ + /* t := P(t) . B'(t) / */ + /* (B'(t) . B'(t) + P(t) . B''(t)) */ + + /* B'(t) = 2tA + B */ + d1.x = FT_MulFix( aA.x, 2 * factor ) + bB.x; + d1.y = FT_MulFix( aA.y, 2 * factor ) + bB.y; + + /* B''(t) = 2A */ + d2.x = 2 * aA.x; + d2.y = 2 * aA.y; + + dist_vector.x /= 1024; + dist_vector.y /= 1024; + + /* temp1 = P(t) . B'(t) */ + temp1 = VEC_26D6_DOT( dist_vector, d1 ); + + /* temp2 = B'(t) . B'(t) + P(t) . B''(t) */ + temp2 = VEC_26D6_DOT( d1, d1 ) + + VEC_26D6_DOT( dist_vector, d2 ); + + factor -= FT_DivFix( temp1, temp2 ); + + if ( factor < 0 || factor > FT_INT_16D16( 1 ) ) + break; + } + } + + /* B'(t) = 2t * A + B */ + direction.x = 2 * FT_MulFix( aA.x, min_factor ) + bB.x; + direction.y = 2 * FT_MulFix( aA.y, min_factor ) + bB.y; + + /* determine the sign */ + cross = FT_MulFix( nearest_point.x - FT_26D6_16D16( p.x ), + direction.y ) - + FT_MulFix( nearest_point.y - FT_26D6_16D16( p.y ), + direction.x ); + + /* assign the values */ + out->distance = min; + out->sign = cross < 0 ? 1 : -1; + + if ( min_factor != 0 && min_factor != FT_INT_16D16( 1 ) ) + out->cross = FT_INT_16D16( 1 ); /* the two are perpendicular */ + else + { + /* convert to nearest vector */ + nearest_point.x -= FT_26D6_16D16( p.x ); + nearest_point.y -= FT_26D6_16D16( p.y ); + + /* compute `cross` if not perpendicular */ + FT_Vector_NormLen( &direction ); + FT_Vector_NormLen( &nearest_point ); + + out->cross = FT_MulFix( direction.x, nearest_point.y ) - + FT_MulFix( direction.y, nearest_point.x ); + } + + Exit: + return error; + } + + +#endif /* USE_NEWTON_FOR_CONIC */ + + + /************************************************************************** + * + * @Function: + * get_min_distance_cubic + * + * @Description: + * Find the shortest distance from the `cubic` Bezier curve to a given + * `point` and assigns it to `out`. Use it for cubic curves only. + * + * @Input: + * cubic :: + * The cubic Bezier curve to which the shortest distance is to be + * computed. + * + * point :: + * Point from which the shortest distance is to be computed. + * + * @Output: + * out :: + * Signed distance from `point` to `cubic`. + * + * @Return: + * FreeType error, 0 means success. + * + * @Note: + * The function uses Newton's approximation to find the shortest + * distance. Another way would be to divide the cubic into conic or + * subdivide the curve into lines, but that is not implemented. + * + * The `cubic` parameter must have an edge type of `SDF_EDGE_CUBIC`. + * + */ + static FT_Error + get_min_distance_cubic( SDF_Edge* cubic, + FT_26D6_Vec point, + SDF_Signed_Distance* out ) + { + /* + * The procedure to find the shortest distance from a point to a cubic + * Bezier curve is similar to quadratic curve algorithm. The only + * difference is that while calculating factor `t`, instead of a cubic + * polynomial equation we have to find the roots of a 5th degree + * polynomial equation. Solving this would require a significant amount + * of time, and still the results may not be accurate. We are thus + * going to directly approximate the value of `t` using the Newton-Raphson + * method. + * + * Let's assume that + * + * ``` + * p0 = first endpoint + * p1 = first control point + * p2 = second control point + * p3 = second endpoint + * p = point from which shortest distance is to be calculated + * ``` + * + * (1) The equation of a cubic Bezier curve can be written as + * + * ``` + * B(t) = (1 - t)^3 * p0 + 3(1 - t)^2 t * p1 + + * 3(1 - t)t^2 * p2 + t^3 * p3 + * ``` + * + * The equation can be expanded and written as + * + * ``` + * B(t) = t^3 * (-p0 + 3p1 - 3p2 + p3) + + * 3t^2 * (p0 - 2p1 + p2) + 3t * (-p0 + p1) + p0 + * ``` + * + * With + * + * ``` + * A = -p0 + 3p1 - 3p2 + p3 + * B = 3(p0 - 2p1 + p2) + * C = 3(-p0 + p1) + * ``` + * + * we have + * + * ``` + * B(t) = t^3 * A + t^2 * B + t * C + p0 + * ``` + * + * (2) The derivative of the above equation is + * + * ``` + * B'(t) = 3t^2 * A + 2t * B + C + * ``` + * + * (3) The second derivative of the above equation is + * + * ``` + * B''(t) = 6t * A + 2B + * ``` + * + * (4) The equation `P(t)` of the distance from point `p` to the curve + * can be written as + * + * ``` + * P(t) = t^3 * A + t^2 * B + t * C + p0 - p + * ``` + * + * With + * + * ``` + * D = p0 - p + * ``` + * + * we have + * + * ``` + * P(t) = t^3 * A + t^2 * B + t * C + D + * ``` + * + * (5) Finally the equation of the angle between `B(t)` and `P(t)` can + * be written as + * + * ``` + * Q(t) = P(t) . B'(t) + * ``` + * + * (6) Our task is to find a value of `t` such that the above equation + * `Q(t)` becomes zero, this is, the point-to-curve vector makes + * 90~degree with curve. We solve this with the Newton-Raphson + * method. + * + * (7) We first assume an arbitary value of factor `t`, which we then + * improve. + * + * ``` + * t := Q(t) / Q'(t) + * ``` + * + * Putting the value of `Q(t)` from the above equation gives + * + * ``` + * t := P(t) . B'(t) / derivative(P(t) . B'(t)) + * t := P(t) . B'(t) / + * (P'(t) . B'(t) + P(t) . B''(t)) + * ``` + * + * Note that `P'(t)` is the same as `B'(t)` because the constant is + * gone due to the derivative. + * + * (8) Finally we get the equation to improve the factor as + * + * ``` + * t := P(t) . B'(t) / + * (B'(t) . B'( t ) + P(t) . B''(t)) + * ``` + * + * [note]: `B` and `B(t)` are different in the above equations. + */ + + FT_Error error = FT_Err_Ok; + + FT_26D6_Vec aA, bB, cC, dD; /* A, B, C in the above comment */ + FT_16D16_Vec nearest_point; /* point on curve nearest to `point` */ + FT_16D16_Vec direction; /* direction of curve at `nearest_point` */ + + FT_26D6_Vec p0, p1, p2, p3; /* control points of a cubic curve */ + FT_26D6_Vec p; /* `point` to which shortest distance */ + + FT_16D16 min_factor = 0; /* factor at shortest distance */ + FT_16D16 min_factor_sq = 0; /* factor at shortest distance */ + FT_16D16 cross; /* to determine the sign */ + FT_16D16 min = FT_INT_MAX; /* shortest distance */ + + FT_UShort iterations; + FT_UShort steps; + + + if ( !cubic || !out ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + if ( cubic->edge_type != SDF_EDGE_CUBIC ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + p0 = cubic->start_pos; + p1 = cubic->control_a; + p2 = cubic->control_b; + p3 = cubic->end_pos; + p = point; + + /* compute substitution coefficients */ + aA.x = -p0.x + 3 * ( p1.x - p2.x ) + p3.x; + aA.y = -p0.y + 3 * ( p1.y - p2.y ) + p3.y; + + bB.x = 3 * ( p0.x - 2 * p1.x + p2.x ); + bB.y = 3 * ( p0.y - 2 * p1.y + p2.y ); + + cC.x = 3 * ( p1.x - p0.x ); + cC.y = 3 * ( p1.y - p0.y ); + + dD.x = p0.x; + dD.y = p0.y; + + for ( iterations = 0; iterations <= MAX_NEWTON_DIVISIONS; iterations++ ) + { + FT_16D16 factor = FT_INT_16D16( iterations ) / MAX_NEWTON_DIVISIONS; + + FT_16D16 factor2; /* factor^2 */ + FT_16D16 factor3; /* factor^3 */ + FT_16D16 length; + + FT_16D16_Vec curve_point; /* point on the curve */ + FT_16D16_Vec dist_vector; /* `curve_point' - `p' */ + + FT_26D6_Vec d1; /* first derivative */ + FT_26D6_Vec d2; /* second derivative */ + + FT_16D16 temp1; + FT_16D16 temp2; + + + for ( steps = 0; steps < MAX_NEWTON_STEPS; steps++ ) + { + factor2 = FT_MulFix( factor, factor ); + factor3 = FT_MulFix( factor2, factor ); + + /* B(t) = t^3 * A + t^2 * B + t * C + D */ + curve_point.x = FT_MulFix( aA.x, factor3 ) + + FT_MulFix( bB.x, factor2 ) + + FT_MulFix( cC.x, factor ) + dD.x; + curve_point.y = FT_MulFix( aA.y, factor3 ) + + FT_MulFix( bB.y, factor2 ) + + FT_MulFix( cC.y, factor ) + dD.y; + + /* convert to 16.16 */ + curve_point.x = FT_26D6_16D16( curve_point.x ); + curve_point.y = FT_26D6_16D16( curve_point.y ); + + /* P(t) in the comment */ + dist_vector.x = curve_point.x - FT_26D6_16D16( p.x ); + dist_vector.y = curve_point.y - FT_26D6_16D16( p.y ); + + length = VECTOR_LENGTH_16D16( dist_vector ); + + if ( length < min ) + { + min = length; + min_factor = factor; + min_factor_sq = factor2; + nearest_point = curve_point; + } + + /* This the Newton's approximation. */ + /* */ + /* t := P(t) . B'(t) / */ + /* (B'(t) . B'(t) + P(t) . B''(t)) */ + + /* B'(t) = 3t^2 * A + 2t * B + C */ + d1.x = FT_MulFix( aA.x, 3 * factor2 ) + + FT_MulFix( bB.x, 2 * factor ) + cC.x; + d1.y = FT_MulFix( aA.y, 3 * factor2 ) + + FT_MulFix( bB.y, 2 * factor ) + cC.y; + + /* B''(t) = 6t * A + 2B */ + d2.x = FT_MulFix( aA.x, 6 * factor ) + 2 * bB.x; + d2.y = FT_MulFix( aA.y, 6 * factor ) + 2 * bB.y; + + dist_vector.x /= 1024; + dist_vector.y /= 1024; + + /* temp1 = P(t) . B'(t) */ + temp1 = VEC_26D6_DOT( dist_vector, d1 ); + + /* temp2 = B'(t) . B'(t) + P(t) . B''(t) */ + temp2 = VEC_26D6_DOT( d1, d1 ) + + VEC_26D6_DOT( dist_vector, d2 ); + + factor -= FT_DivFix( temp1, temp2 ); + + if ( factor < 0 || factor > FT_INT_16D16( 1 ) ) + break; + } + } + + /* B'(t) = 3t^2 * A + 2t * B + C */ + direction.x = FT_MulFix( aA.x, 3 * min_factor_sq ) + + FT_MulFix( bB.x, 2 * min_factor ) + cC.x; + direction.y = FT_MulFix( aA.y, 3 * min_factor_sq ) + + FT_MulFix( bB.y, 2 * min_factor ) + cC.y; + + /* determine the sign */ + cross = FT_MulFix( nearest_point.x - FT_26D6_16D16( p.x ), + direction.y ) - + FT_MulFix( nearest_point.y - FT_26D6_16D16( p.y ), + direction.x ); + + /* assign the values */ + out->distance = min; + out->sign = cross < 0 ? 1 : -1; + + if ( min_factor != 0 && min_factor != FT_INT_16D16( 1 ) ) + out->cross = FT_INT_16D16( 1 ); /* the two are perpendicular */ + else + { + /* convert to nearest vector */ + nearest_point.x -= FT_26D6_16D16( p.x ); + nearest_point.y -= FT_26D6_16D16( p.y ); + + /* compute `cross` if not perpendicular */ + FT_Vector_NormLen( &direction ); + FT_Vector_NormLen( &nearest_point ); + + out->cross = FT_MulFix( direction.x, nearest_point.y ) - + FT_MulFix( direction.y, nearest_point.x ); + } + + Exit: + return error; + } + + + /************************************************************************** + * + * @Function: + * sdf_edge_get_min_distance + * + * @Description: + * Find shortest distance from `point` to any type of `edge`. It checks + * the edge type and then calls the relevant `get_min_distance_*` + * function. + * + * @Input: + * edge :: + * An edge to which the shortest distance is to be computed. + * + * point :: + * Point from which the shortest distance is to be computed. + * + * @Output: + * out :: + * Signed distance from `point` to `edge`. + * + * @Return: + * FreeType error, 0 means success. + * + */ + static FT_Error + sdf_edge_get_min_distance( SDF_Edge* edge, + FT_26D6_Vec point, + SDF_Signed_Distance* out ) + { + FT_Error error = FT_Err_Ok; + + + if ( !edge || !out ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + /* edge-specific distance calculation */ + switch ( edge->edge_type ) + { + case SDF_EDGE_LINE: + get_min_distance_line( edge, point, out ); + break; + + case SDF_EDGE_CONIC: + get_min_distance_conic( edge, point, out ); + break; + + case SDF_EDGE_CUBIC: + get_min_distance_cubic( edge, point, out ); + break; + + default: + error = FT_THROW( Invalid_Argument ); + } + + Exit: + return error; + } + + + /* `sdf_generate' is not used at the moment */ +#if 0 + + #error "DO NOT USE THIS!" + #error "The function still outputs 16-bit data, which might cause memory" + #error "corruption. If required I will add this later." + + /************************************************************************** + * + * @Function: + * sdf_contour_get_min_distance + * + * @Description: + * Iterate over all edges that make up the contour, find the shortest + * distance from a point to this contour, and assigns result to `out`. + * + * @Input: + * contour :: + * A contour to which the shortest distance is to be computed. + * + * point :: + * Point from which the shortest distance is to be computed. + * + * @Output: + * out :: + * Signed distance from the `point' to the `contour'. + * + * @Return: + * FreeType error, 0 means success. + * + * @Note: + * The function does not return a signed distance for each edge which + * makes up the contour, it simply returns the shortest of all the + * edges. + * + */ + static FT_Error + sdf_contour_get_min_distance( SDF_Contour* contour, + FT_26D6_Vec point, + SDF_Signed_Distance* out ) + { + FT_Error error = FT_Err_Ok; + SDF_Signed_Distance min_dist = max_sdf; + SDF_Edge* edge_list; + + + if ( !contour || !out ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + edge_list = contour->edges; + + /* iterate over all the edges manually */ + while ( edge_list ) + { + SDF_Signed_Distance current_dist = max_sdf; + FT_16D16 diff; + + + FT_CALL( sdf_edge_get_min_distance( edge_list, + point, + ¤t_dist ) ); + + if ( current_dist.distance >= 0 ) + { + diff = current_dist.distance - min_dist.distance; + + + if ( FT_ABS(diff ) < CORNER_CHECK_EPSILON ) + min_dist = resolve_corner( min_dist, current_dist ); + else if ( diff < 0 ) + min_dist = current_dist; + } + else + FT_TRACE0(( "sdf_contour_get_min_distance: Overflow.\n" )); + + edge_list = edge_list->next; + } + + *out = min_dist; + + Exit: + return error; + } + + + /************************************************************************** + * + * @Function: + * sdf_generate + * + * @Description: + * This is the main function that is responsible for generating signed + * distance fields. The function does not align or compute the size of + * `bitmap`; therefore the calling application must set up `bitmap` + * properly and transform the `shape' appropriately in advance. + * + * Currently we check all pixels against all contours and all edges. + * + * @Input: + * internal_params :: + * Internal parameters and properties required by the rasterizer. See + * @SDF_Params for more. + * + * shape :: + * A complete shape which is used to generate SDF. + * + * spread :: + * Maximum distances to be allowed in the output bitmap. + * + * @Output: + * bitmap :: + * The output bitmap which will contain the SDF information. + * + * @Return: + * FreeType error, 0 means success. + * + */ + static FT_Error + sdf_generate( const SDF_Params internal_params, + const SDF_Shape* shape, + FT_UInt spread, + const FT_Bitmap* bitmap ) + { + FT_Error error = FT_Err_Ok; + + FT_UInt width = 0; + FT_UInt rows = 0; + FT_UInt x = 0; /* used to loop in x direction, i.e., width */ + FT_UInt y = 0; /* used to loop in y direction, i.e., rows */ + FT_UInt sp_sq = 0; /* `spread` [* `spread`] as a 16.16 fixed value */ + + FT_Short* buffer; + + + if ( !shape || !bitmap ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + if ( spread < MIN_SPREAD || spread > MAX_SPREAD ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + width = bitmap->width; + rows = bitmap->rows; + buffer = (FT_Short*)bitmap->buffer; + + if ( USE_SQUARED_DISTANCES ) + sp_sq = FT_INT_16D16( spread * spread ); + else + sp_sq = FT_INT_16D16( spread ); + + if ( width == 0 || rows == 0 ) + { + FT_TRACE0(( "sdf_generate:" + " Cannot render glyph with width/height == 0\n" )); + FT_TRACE0(( " " + " (width, height provided [%d, %d])\n", + width, rows )); + + error = FT_THROW( Cannot_Render_Glyph ); + goto Exit; + } + + /* loop over all rows */ + for ( y = 0; y < rows; y++ ) + { + /* loop over all pixels of a row */ + for ( x = 0; x < width; x++ ) + { + /* `grid_point` is the current pixel position; */ + /* our task is to find the shortest distance */ + /* from this point to the entire shape. */ + FT_26D6_Vec grid_point = zero_vector; + SDF_Signed_Distance min_dist = max_sdf; + SDF_Contour* contour_list; + + FT_UInt index; + FT_Short value; + + + grid_point.x = FT_INT_26D6( x ); + grid_point.y = FT_INT_26D6( y ); + + /* This `grid_point' is at the corner, but we */ + /* use the center of the pixel. */ + grid_point.x += FT_INT_26D6( 1 ) / 2; + grid_point.y += FT_INT_26D6( 1 ) / 2; + + contour_list = shape->contours; + + /* iterate over all contours manually */ + while ( contour_list ) + { + SDF_Signed_Distance current_dist = max_sdf; + + + FT_CALL( sdf_contour_get_min_distance( contour_list, + grid_point, + ¤t_dist ) ); + + if ( current_dist.distance < min_dist.distance ) + min_dist = current_dist; + + contour_list = contour_list->next; + } + + /* [OPTIMIZATION]: if (min_dist > sp_sq) then simply clamp */ + /* the value to spread to avoid square_root */ + + /* clamp the values to spread */ + if ( min_dist.distance > sp_sq ) + min_dist.distance = sp_sq; + + /* square_root the values and fit in a 6.10 fixed point */ + if ( USE_SQUARED_DISTANCES ) + min_dist.distance = square_root( min_dist.distance ); + + if ( internal_params.orientation == FT_ORIENTATION_FILL_LEFT ) + min_dist.sign = -min_dist.sign; + if ( internal_params.flip_sign ) + min_dist.sign = -min_dist.sign; + + min_dist.distance /= 64; /* convert from 16.16 to 22.10 */ + + value = min_dist.distance & 0x0000FFFF; /* truncate to 6.10 */ + value *= min_dist.sign; + + if ( internal_params.flip_y ) + index = y * width + x; + else + index = ( rows - y - 1 ) * width + x; + + buffer[index] = value; + } + } + + Exit: + return error; + } + +#endif /* 0 */ + + + /************************************************************************** + * + * @Function: + * sdf_generate_bounding_box + * + * @Description: + * This function does basically the same thing as `sdf_generate` above + * but more efficiently. + * + * Instead of checking all pixels against all edges, we loop over all + * edges and only check pixels around the control box of the edge; the + * control box is increased by the spread in all directions. Anything + * outside of the control box that exceeds `spread` doesn't need to be + * computed. + * + * Lastly, to determine the sign of unchecked pixels, we do a single + * pass of all rows starting with a '+' sign and flipping when we come + * across a '-' sign and continue. This also eliminates the possibility + * of overflow because we only check the proximity of the curve. + * Therefore we can use squared distanced safely. + * + * @Input: + * internal_params :: + * Internal parameters and properties required by the rasterizer. + * See @SDF_Params for more. + * + * shape :: + * A complete shape which is used to generate SDF. + * + * spread :: + * Maximum distances to be allowed in the output bitmap. + * + * @Output: + * bitmap :: + * The output bitmap which will contain the SDF information. + * + * @Return: + * FreeType error, 0 means success. + * + */ + static FT_Error + sdf_generate_bounding_box( const SDF_Params internal_params, + const SDF_Shape* shape, + FT_UInt spread, + const FT_Bitmap* bitmap ) + { + FT_Error error = FT_Err_Ok; + FT_Memory memory = NULL; + + FT_Int width, rows, i, j; + FT_Int sp_sq; /* max value to check */ + + SDF_Contour* contours; /* list of all contours */ + FT_SDFFormat* buffer; /* the bitmap buffer */ + + /* This buffer has the same size in indices as the */ + /* bitmap buffer. When we check a pixel position for */ + /* a shortest distance we keep it in this buffer. */ + /* This way we can find out which pixel is set, */ + /* and also determine the signs properly. */ + SDF_Signed_Distance* dists = NULL; + + const FT_16D16 fixed_spread = FT_INT_16D16( spread ); + + + if ( !shape || !bitmap ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + if ( spread < MIN_SPREAD || spread > MAX_SPREAD ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + memory = shape->memory; + if ( !memory ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + if ( FT_ALLOC( dists, + bitmap->width * bitmap->rows * sizeof ( *dists ) ) ) + goto Exit; + + contours = shape->contours; + width = (FT_Int)bitmap->width; + rows = (FT_Int)bitmap->rows; + buffer = (FT_SDFFormat*)bitmap->buffer; + + if ( USE_SQUARED_DISTANCES ) + sp_sq = fixed_spread * fixed_spread; + else + sp_sq = fixed_spread; + + if ( width == 0 || rows == 0 ) + { + FT_TRACE0(( "sdf_generate:" + " Cannot render glyph with width/height == 0\n" )); + FT_TRACE0(( " " + " (width, height provided [%d, %d])", width, rows )); + + error = FT_THROW( Cannot_Render_Glyph ); + goto Exit; + } + + /* loop over all contours */ + while ( contours ) + { + SDF_Edge* edges = contours->edges; + + + /* loop over all edges */ + while ( edges ) + { + FT_CBox cbox; + FT_Int x, y; + + + /* get the control box and increase it by `spread' */ + cbox = get_control_box( *edges ); + + cbox.xMin = ( cbox.xMin - 63 ) / 64 - ( FT_Pos )spread; + cbox.xMax = ( cbox.xMax + 63 ) / 64 + ( FT_Pos )spread; + cbox.yMin = ( cbox.yMin - 63 ) / 64 - ( FT_Pos )spread; + cbox.yMax = ( cbox.yMax + 63 ) / 64 + ( FT_Pos )spread; + + /* now loop over the pixels in the control box. */ + for ( y = cbox.yMin; y < cbox.yMax; y++ ) + { + for ( x = cbox.xMin; x < cbox.xMax; x++ ) + { + FT_26D6_Vec grid_point = zero_vector; + SDF_Signed_Distance dist = max_sdf; + FT_UInt index = 0; + + + if ( x < 0 || x >= width ) + continue; + if ( y < 0 || y >= rows ) + continue; + + grid_point.x = FT_INT_26D6( x ); + grid_point.y = FT_INT_26D6( y ); + + /* This `grid_point` is at the corner, but we */ + /* use the center of the pixel. */ + grid_point.x += FT_INT_26D6( 1 ) / 2; + grid_point.y += FT_INT_26D6( 1 ) / 2; + + FT_CALL( sdf_edge_get_min_distance( edges, + grid_point, + &dist ) ); + + if ( internal_params.orientation == FT_ORIENTATION_FILL_LEFT ) + dist.sign = -dist.sign; + + /* ignore if the distance is greater than spread; */ + /* otherwise it creates artifacts due to the wrong sign */ + if ( dist.distance > sp_sq ) + continue; + + /* square_root the values and fit in a 6.10 fixed-point */ + if ( USE_SQUARED_DISTANCES ) + dist.distance = square_root( dist.distance ); + + if ( internal_params.flip_y ) + index = (FT_UInt)( y * width + x ); + else + index = (FT_UInt)( ( rows - y - 1 ) * width + x ); + + /* check whether the pixel is set or not */ + if ( dists[index].sign == 0 ) + dists[index] = dist; + else if ( dists[index].distance > dist.distance ) + dists[index] = dist; + else if ( FT_ABS( dists[index].distance - dist.distance ) + < CORNER_CHECK_EPSILON ) + dists[index] = resolve_corner( dists[index], dist ); + } + } + + edges = edges->next; + } + + contours = contours->next; + } + + /* final pass */ + for ( j = 0; j < rows; j++ ) + { + /* We assume the starting pixel of each row is outside. */ + FT_Char current_sign = -1; + FT_UInt index; + + + if ( internal_params.overload_sign != 0 ) + current_sign = internal_params.overload_sign < 0 ? -1 : 1; + + for ( i = 0; i < width; i++ ) + { + index = (FT_UInt)( j * width + i ); + + /* if the pixel is not set */ + /* its shortest distance is more than `spread` */ + if ( dists[index].sign == 0 ) + dists[index].distance = fixed_spread; + else + current_sign = dists[index].sign; + + /* clamp the values */ + if ( dists[index].distance > fixed_spread ) + dists[index].distance = fixed_spread; + + /* flip sign if required */ + dists[index].distance *= internal_params.flip_sign ? -current_sign + : current_sign; + + /* concatenate to appropriate format */ + buffer[index] = map_fixed_to_sdf( dists[index].distance, + fixed_spread ); + } + } + + Exit: + FT_FREE( dists ); + return error; + } + + + /************************************************************************** + * + * @Function: + * sdf_generate_subdivision + * + * @Description: + * Subdivide the shape into a number of straight lines, then use the + * above `sdf_generate_bounding_box` function to generate the SDF. + * + * Note: After calling this function `shape` no longer has the original + * edges, it only contains lines. + * + * @Input: + * internal_params :: + * Internal parameters and properties required by the rasterizer. + * See @SDF_Params for more. + * + * shape :: + * A complete shape which is used to generate SDF. + * + * spread :: + * Maximum distances to be allowed inthe output bitmap. + * + * @Output: + * bitmap :: + * The output bitmap which will contain the SDF information. + * + * @Return: + * FreeType error, 0 means success. + * + */ + static FT_Error + sdf_generate_subdivision( const SDF_Params internal_params, + SDF_Shape* shape, + FT_UInt spread, + const FT_Bitmap* bitmap ) + { + /* + * Thanks to Alexei for providing the idea of this optimization. + * + * We take advantage of two facts. + * + * (1) Computing the shortest distance from a point to a line segment is + * very fast. + * (2) We don't have to compute the shortest distance for the entire + * two-dimensional grid. + * + * Both ideas lead to the following optimization. + * + * (1) Split the outlines into a number of line segments. + * + * (2) For each line segment, only process its neighborhood. + * + * (3) Compute the closest distance to the line only for neighborhood + * grid points. + * + * This greatly reduces the number of grid points to check. + */ + + FT_Error error = FT_Err_Ok; + + + FT_CALL( split_sdf_shape( shape ) ); + FT_CALL( sdf_generate_bounding_box( internal_params, + shape, spread, bitmap ) ); + + Exit: + return error; + } + + + /************************************************************************** + * + * @Function: + * sdf_generate_with_overlaps + * + * @Description: + * This function can be used to generate SDF for glyphs with overlapping + * contours. The function generates SDF for contours separately on + * separate bitmaps (to generate SDF it uses + * `sdf_generate_subdivision`). At the end it simply combines all the + * SDF into the output bitmap; this fixes all the signs and removes + * overlaps. + * + * @Input: + * internal_params :: + * Internal parameters and properties required by the rasterizer. See + * @SDF_Params for more. + * + * shape :: + * A complete shape which is used to generate SDF. + * + * spread :: + * Maximum distances to be allowed in the output bitmap. + * + * @Output: + * bitmap :: + * The output bitmap which will contain the SDF information. + * + * @Return: + * FreeType error, 0 means success. + * + * @Note: + * The function cannot generate a proper SDF for glyphs with + * self-intersecting contours because we cannot separate them into two + * separate bitmaps. In case of self-intersecting contours it is + * necessary to remove the overlaps before generating the SDF. + * + */ + static FT_Error + sdf_generate_with_overlaps( SDF_Params internal_params, + SDF_Shape* shape, + FT_UInt spread, + const FT_Bitmap* bitmap ) + { + FT_Error error = FT_Err_Ok; + + FT_Int num_contours; /* total number of contours */ + FT_Int i, j; /* iterators */ + FT_Int width, rows; /* width and rows of the bitmap */ + FT_Bitmap* bitmaps; /* separate bitmaps for contours */ + + SDF_Contour* contour; /* temporary variable to iterate */ + SDF_Contour* temp_contour; /* temporary contour */ + SDF_Contour* head; /* head of the contour list */ + SDF_Shape temp_shape; /* temporary shape */ + + FT_Memory memory; /* to allocate memory */ + FT_SDFFormat* t; /* target bitmap buffer */ + FT_Bool flip_sign; /* flip sign? */ + + /* orientation of all the separate contours */ + SDF_Contour_Orientation* orientations; + + + bitmaps = NULL; + orientations = NULL; + head = NULL; + + if ( !shape || !bitmap || !shape->memory ) + return FT_THROW( Invalid_Argument ); + + /* Disable `flip_sign` to avoid extra complication */ + /* during the combination phase. */ + flip_sign = internal_params.flip_sign; + internal_params.flip_sign = 0; + + contour = shape->contours; + memory = shape->memory; + temp_shape.memory = memory; + width = (FT_Int)bitmap->width; + rows = (FT_Int)bitmap->rows; + num_contours = 0; + + /* find the number of contours in the shape */ + while ( contour ) + { + num_contours++; + contour = contour->next; + } + + /* allocate the bitmaps to generate SDF for separate contours */ + if ( FT_ALLOC( bitmaps, + (FT_UInt)num_contours * sizeof ( *bitmaps ) ) ) + goto Exit; + + /* allocate array to hold orientation for all contours */ + if ( FT_ALLOC( orientations, + (FT_UInt)num_contours * sizeof ( *orientations ) ) ) + goto Exit; + + contour = shape->contours; + + /* Iterate over all contours and generate SDF separately. */ + for ( i = 0; i < num_contours; i++ ) + { + /* initialize the corresponding bitmap */ + FT_Bitmap_Init( &bitmaps[i] ); + + bitmaps[i].width = bitmap->width; + bitmaps[i].rows = bitmap->rows; + bitmaps[i].pitch = bitmap->pitch; + bitmaps[i].num_grays = bitmap->num_grays; + bitmaps[i].pixel_mode = bitmap->pixel_mode; + + /* allocate memory for the buffer */ + if ( FT_ALLOC( bitmaps[i].buffer, + bitmap->rows * (FT_UInt)bitmap->pitch ) ) + goto Exit; + + /* determine the orientation */ + orientations[i] = get_contour_orientation( contour ); + + /* The `overload_sign` property is specific to */ + /* `sdf_generate_bounding_box`. This basically */ + /* overloads the default sign of the outside */ + /* pixels, which is necessary for */ + /* counter-clockwise contours. */ + if ( orientations[i] == SDF_ORIENTATION_CCW && + internal_params.orientation == FT_ORIENTATION_FILL_RIGHT ) + internal_params.overload_sign = 1; + else if ( orientations[i] == SDF_ORIENTATION_CW && + internal_params.orientation == FT_ORIENTATION_FILL_LEFT ) + internal_params.overload_sign = 1; + else + internal_params.overload_sign = 0; + + /* Make `contour->next` NULL so that there is */ + /* one contour in the list. Also hold the next */ + /* contour in a temporary variable so as to */ + /* restore the original value. */ + temp_contour = contour->next; + contour->next = NULL; + + /* Use `temp_shape` to hold the new contour. */ + /* Now, `temp_shape` has only one contour. */ + temp_shape.contours = contour; + + /* finally generate the SDF */ + FT_CALL( sdf_generate_subdivision( internal_params, + &temp_shape, + spread, + &bitmaps[i] ) ); + + /* Restore the original `next` variable. */ + contour->next = temp_contour; + + /* Since `split_sdf_shape` deallocated the original */ + /* contours list we need to assign the new value to */ + /* the shape's contour. */ + temp_shape.contours->next = head; + head = temp_shape.contours; + + /* Simply flip the orientation in case of post-script fonts */ + /* so as to avoid modificatons in the combining phase. */ + if ( internal_params.orientation == FT_ORIENTATION_FILL_LEFT ) + { + if ( orientations[i] == SDF_ORIENTATION_CW ) + orientations[i] = SDF_ORIENTATION_CCW; + else if ( orientations[i] == SDF_ORIENTATION_CCW ) + orientations[i] = SDF_ORIENTATION_CW; + } + + contour = contour->next; + } + + /* assign the new contour list to `shape->contours` */ + shape->contours = head; + + /* cast the output bitmap buffer */ + t = (FT_SDFFormat*)bitmap->buffer; + + /* Iterate over all pixels and combine all separate */ + /* contours. These are the rules for combining: */ + /* */ + /* (1) For all clockwise contours, compute the largest */ + /* value. Name this as `val_c`. */ + /* (2) For all counter-clockwise contours, compute the */ + /* smallest value. Name this as `val_ac`. */ + /* (3) Now, finally use the smaller value of `val_c' */ + /* and `val_ac'. */ + for ( j = 0; j < rows; j++ ) + { + for ( i = 0; i < width; i++ ) + { + FT_Int id = j * width + i; /* index of current pixel */ + FT_Int c; /* contour iterator */ + + FT_SDFFormat val_c = 0; /* max clockwise value */ + FT_SDFFormat val_ac = UCHAR_MAX; /* min counter-clockwise val */ + + + /* iterate through all the contours */ + for ( c = 0; c < num_contours; c++ ) + { + /* current contour value */ + FT_SDFFormat temp = ( (FT_SDFFormat*)bitmaps[c].buffer )[id]; + + + if ( orientations[c] == SDF_ORIENTATION_CW ) + val_c = FT_MAX( val_c, temp ); /* clockwise */ + else + val_ac = FT_MIN( val_ac, temp ); /* counter-clockwise */ + } + + /* Finally find the smaller of the two and assign to output. */ + /* Also apply `flip_sign` if set. */ + t[id] = FT_MIN( val_c, val_ac ); + + if ( flip_sign ) + t[id] = invert_sign( t[id] ); + } + } + + Exit: + /* deallocate orientations array */ + if ( orientations ) + FT_FREE( orientations ); + + /* deallocate temporary bitmaps */ + if ( bitmaps ) + { + if ( num_contours == 0 ) + error = FT_THROW( Raster_Corrupted ); + else + { + for ( i = 0; i < num_contours; i++ ) + FT_FREE( bitmaps[i].buffer ); + + FT_FREE( bitmaps ); + } + } + + /* restore the `flip_sign` property */ + internal_params.flip_sign = flip_sign; + + return error; + } + + + /************************************************************************** + * + * interface functions + * + */ + + static FT_Error + sdf_raster_new( FT_Memory memory, + SDF_PRaster* araster ) + { + FT_Error error; + SDF_PRaster raster = NULL; + + + if ( !FT_NEW( raster ) ) + raster->memory = memory; + + *araster = raster; + + return error; + } + + + static void + sdf_raster_reset( FT_Raster raster, + unsigned char* pool_base, + unsigned long pool_size ) + { + FT_UNUSED( raster ); + FT_UNUSED( pool_base ); + FT_UNUSED( pool_size ); + } + + + static FT_Error + sdf_raster_set_mode( FT_Raster raster, + unsigned long mode, + void* args ) + { + FT_UNUSED( raster ); + FT_UNUSED( mode ); + FT_UNUSED( args ); + + return FT_Err_Ok; + } + + + static FT_Error + sdf_raster_render( FT_Raster raster, + const FT_Raster_Params* params ) + { + FT_Error error = FT_Err_Ok; + SDF_TRaster* sdf_raster = (SDF_TRaster*)raster; + FT_Outline* outline = NULL; + const SDF_Raster_Params* sdf_params = (const SDF_Raster_Params*)params; + + FT_Memory memory = NULL; + SDF_Shape* shape = NULL; + SDF_Params internal_params; + + + /* check for valid arguments */ + if ( !sdf_raster || !sdf_params ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + outline = (FT_Outline*)sdf_params->root.source; + + /* check whether outline is valid */ + if ( !outline ) + { + error = FT_THROW( Invalid_Outline ); + goto Exit; + } + + /* if the outline is empty, return */ + if ( outline->n_points <= 0 || outline->n_contours <= 0 ) + goto Exit; + + /* check whether the outline has valid fields */ + if ( !outline->contours || !outline->points ) + { + error = FT_THROW( Invalid_Outline ); + goto Exit; + } + + /* check whether spread is set properly */ + if ( sdf_params->spread > MAX_SPREAD || + sdf_params->spread < MIN_SPREAD ) + { + FT_TRACE0(( "sdf_raster_render:" + " The `spread' field of `SDF_Raster_Params' is invalid,\n" )); + FT_TRACE0(( " " + " the value of this field must be within [%d, %d].\n", + MIN_SPREAD, MAX_SPREAD )); + FT_TRACE0(( " " + " Also, you must pass `SDF_Raster_Params' instead of\n" )); + FT_TRACE0(( " " + " the default `FT_Raster_Params' while calling\n" )); + FT_TRACE0(( " " + " this function and set the fields properly.\n" )); + + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + memory = sdf_raster->memory; + if ( !memory ) + { + FT_TRACE0(( "sdf_raster_render:" + " Raster not setup properly,\n" )); + FT_TRACE0(( " " + " unable to find memory handle.\n" )); + + error = FT_THROW( Invalid_Handle ); + goto Exit; + } + + /* set up the parameters */ + internal_params.orientation = FT_Outline_Get_Orientation( outline ); + internal_params.flip_sign = sdf_params->flip_sign; + internal_params.flip_y = sdf_params->flip_y; + internal_params.overload_sign = 0; + + FT_CALL( sdf_shape_new( memory, &shape ) ); + + FT_CALL( sdf_outline_decompose( outline, shape ) ); + + if ( sdf_params->overlaps ) + FT_CALL( sdf_generate_with_overlaps( internal_params, + shape, sdf_params->spread, + sdf_params->root.target ) ); + else + FT_CALL( sdf_generate_subdivision( internal_params, + shape, sdf_params->spread, + sdf_params->root.target ) ); + + if ( shape ) + sdf_shape_done( &shape ); + + Exit: + return error; + } + + + static void + sdf_raster_done( FT_Raster raster ) + { + FT_Memory memory = (FT_Memory)((SDF_TRaster*)raster)->memory; + + + FT_FREE( raster ); + } + + + FT_DEFINE_RASTER_FUNCS( + ft_sdf_raster, + + FT_GLYPH_FORMAT_OUTLINE, + + (FT_Raster_New_Func) sdf_raster_new, /* raster_new */ + (FT_Raster_Reset_Func) sdf_raster_reset, /* raster_reset */ + (FT_Raster_Set_Mode_Func)sdf_raster_set_mode, /* raster_set_mode */ + (FT_Raster_Render_Func) sdf_raster_render, /* raster_render */ + (FT_Raster_Done_Func) sdf_raster_done /* raster_done */ + ) + + +/* END */ diff --git a/src/sdf/ftsdf.h b/src/sdf/ftsdf.h new file mode 100644 index 000000000..187b418af --- /dev/null +++ b/src/sdf/ftsdf.h @@ -0,0 +1,97 @@ +/**************************************************************************** + * + * ftsdf.h + * + * Signed Distance Field support (specification). + * + * Copyright (C) 2020-2021 by + * David Turner, Robert Wilhelm, and Werner Lemberg. + * + * Written by Anuj Verma. + * + * This file is part of the FreeType project, and may only be used, + * modified, and distributed under the terms of the FreeType project + * license, LICENSE.TXT. By continuing to use, modify, or distribute + * this file you indicate that you have read the license and + * understand and accept it fully. + * + */ + + +#ifndef FTSDF_H_ +#define FTSDF_H_ + +#include <ft2build.h> +#include FT_CONFIG_CONFIG_H +#include <freetype/ftimage.h> + +/* common properties and function */ +#include "ftsdfcommon.h" + +FT_BEGIN_HEADER + + /************************************************************************** + * + * @struct: + * SDF_Raster_Params + * + * @description: + * This struct must be passed to the raster render function + * @FT_Raster_RenderFunc instead of @FT_Raster_Params because the + * rasterizer requires some additional information to render properly. + * + * @fields: + * root :: + * The native raster parameters structure. + * + * spread :: + * This is an essential parameter/property required by the renderer. + * `spread` defines the maximum unsigned value that is present in the + * final SDF output. For the default value check file + * `ftsdfcommon.h`. + * + * flip_sign :: + * By default positive values indicate positions inside of contours, + * i.e., filled by a contour. If this property is true then that + * output will be the opposite of the default, i.e., negative values + * indicate positions inside of contours. + * + * flip_y :: + * Setting this parameter to true maked the output image flipped + * along the y-axis. + * + * overlaps :: + * Set this to true to generate SDF for glyphs having overlapping + * contours. The overlapping support is limited to glyphs that do not + * have self-intersecting contours. Also, removing overlaps require a + * considerable amount of extra memory; additionally, it will not work + * if generating SDF from bitmap. + * + * @note: + * All properties are valid for both the 'sdf' and 'bsdf' renderers; the + * exception is `overlaps`, which gets ignored by the 'bsdf' renderer. + * + */ + typedef struct SDF_Raster_Params_ + { + FT_Raster_Params root; + FT_UInt spread; + FT_Bool flip_sign; + FT_Bool flip_y; + FT_Bool overlaps; + + } SDF_Raster_Params; + + + /* rasterizer to convert outline to SDF */ + FT_EXPORT_VAR( const FT_Raster_Funcs ) ft_sdf_raster; + + /* rasterizer to convert bitmap to SDF */ + FT_EXPORT_VAR( const FT_Raster_Funcs ) ft_bitmap_sdf_raster; + +FT_END_HEADER + +#endif /* FTSDF_H_ */ + + +/* END */ diff --git a/src/sdf/ftsdfcommon.c b/src/sdf/ftsdfcommon.c new file mode 100644 index 000000000..91aa521bb --- /dev/null +++ b/src/sdf/ftsdfcommon.c @@ -0,0 +1,147 @@ +/**************************************************************************** + * + * ftsdfcommon.c + * + * Auxiliary data for Signed Distance Field support (body). + * + * Copyright (C) 2020-2021 by + * David Turner, Robert Wilhelm, and Werner Lemberg. + * + * Written by Anuj Verma. + * + * This file is part of the FreeType project, and may only be used, + * modified, and distributed under the terms of the FreeType project + * license, LICENSE.TXT. By continuing to use, modify, or distribute + * this file you indicate that you have read the license and + * understand and accept it fully. + * + */ + + +#include "ftsdf.h" +#include "ftsdfcommon.h" + + + /************************************************************************** + * + * common functions + * + */ + + /* + * Original algorithm: + * + * https://github.com/chmike/fpsqrt + * + * Use this to compute the square root of a 16.16 fixed point number. + */ + FT_LOCAL_DEF( FT_16D16 ) + square_root( FT_16D16 val ) + { + FT_ULong t, q, b, r; + + + r = (FT_ULong)val; + b = 0x40000000L; + q = 0; + + while ( b > 0x40L ) + { + t = q + b; + + if ( r >= t ) + { + r -= t; + q = t + b; + } + + r <<= 1; + b >>= 1; + } + + q >>= 8; + + return (FT_16D16)q; + } + + + /************************************************************************** + * + * format and sign manipulating functions + * + */ + + /* + * Convert 16.16 fixed point values to the desired output format. + * In this case we reduce 16.16 fixed point values to normalized + * 8-bit values. + * + * The `max_value` in the parameter is the maximum value in the + * distance field map and is equal to the spread. We normalize + * the distances using this value instead of computing the maximum + * value for the entire bitmap. + * + * You can use this function to map the 16.16 signed values to any + * format required. Do note that the output buffer is 8-bit, so only + * use an 8-bit format for `FT_SDFFormat`, or increase the buffer size in + * `ftsdfrend.c`. + */ + FT_LOCAL_DEF( FT_SDFFormat ) + map_fixed_to_sdf( FT_16D16 dist, + FT_16D16 max_value ) + { + FT_SDFFormat out; + FT_16D16 udist; + + + /* normalize the distance values */ + dist = FT_DivFix( dist, max_value ); + + udist = dist < 0 ? -dist : dist; + + /* Reduce the distance values to 8 bits. */ + /* */ + /* Since +1/-1 in 16.16 takes the 16th bit, we right-shift */ + /* the number by 9 to make it fit into the 7-bit range. */ + /* */ + /* One bit is reserved for the sign. */ + udist >>= 9; + + /* Since `char` can only store a maximum positive value */ + /* of 127 we need to make sure it does not wrap around and */ + /* give a negative value. */ + if ( dist > 0 && udist > 127 ) + udist = 127; + if ( dist < 0 && udist > 128 ) + udist = 128; + + /* Output the data; negative values are from [0, 127] and positive */ + /* from [128, 255]. One important thing is that negative values */ + /* are inverted here, that means [0, 128] maps to [-128, 0] linearly. */ + /* More on that in `freetype.h` near the documentation of */ + /* `FT_RENDER_MODE_SDF`. */ + out = dist < 0 ? 128 - (FT_SDFFormat)udist + : (FT_SDFFormat)udist + 128; + + return out; + } + + + /* + * Invert the signed distance packed into the corresponding format. + * So if the values are negative they will become positive in the + * chosen format. + * + * [Note]: This function should only be used after converting the + * 16.16 signed distance values to `FT_SDFFormat`. If that + * conversion has not been done, then simply invert the sign + * and use the above function to pack the values. + */ + FT_LOCAL_DEF( FT_SDFFormat ) + invert_sign( FT_SDFFormat dist ) + { + return 255 - dist; + } + + +/* END */ diff --git a/src/sdf/ftsdfcommon.h b/src/sdf/ftsdfcommon.h new file mode 100644 index 000000000..44f6bba53 --- /dev/null +++ b/src/sdf/ftsdfcommon.h @@ -0,0 +1,139 @@ +/**************************************************************************** + * + * ftsdfcommon.h + * + * Auxiliary data for Signed Distance Field support (specification). + * + * Copyright (C) 2020-2021 by + * David Turner, Robert Wilhelm, and Werner Lemberg. + * + * Written by Anuj Verma. + * + * This file is part of the FreeType project, and may only be used, + * modified, and distributed under the terms of the FreeType project + * license, LICENSE.TXT. By continuing to use, modify, or distribute + * this file you indicate that you have read the license and + * understand and accept it fully. + * + */ + + + /**************************************************** + * + * This file contains common functions and properties + * for both the 'sdf' and 'bsdf' renderers. + * + */ + +#ifndef FTSDFCOMMON_H_ +#define FTSDFCOMMON_H_ + +#include <ft2build.h> +#include FT_CONFIG_CONFIG_H +#include <freetype/internal/ftobjs.h> + + +FT_BEGIN_HEADER + + + /************************************************************************** + * + * default values (cannot be set individually for each renderer) + * + */ + + /* default spread value */ +#define DEFAULT_SPREAD 8 + /* minimum spread supported by the renderer */ +#define MIN_SPREAD 2 + /* maximum spread supported by the renderer */ +#define MAX_SPREAD 32 + + + /************************************************************************** + * + * common definitions (cannot be set individually for each renderer) + * + */ + + /* If this macro is set to 1 the rasterizer uses squared distances for */ + /* computation. It can greatly improve the performance but there is a */ + /* chance of overflow and artifacts. You can safely use it up to a */ + /* pixel size of 128. */ +#ifndef USE_SQUARED_DISTANCES +#define USE_SQUARED_DISTANCES 0 +#endif + + + /************************************************************************** + * + * common macros + * + */ + + /* convert int to 26.6 fixed-point */ +#define FT_INT_26D6( x ) ( x * 64 ) + /* convert int to 16.16 fixed-point */ +#define FT_INT_16D16( x ) ( x * 65536 ) + /* convert 26.6 to 16.16 fixed-point */ +#define FT_26D6_16D16( x ) ( x * 1024 ) + + + /* Convenience macro to call a function; it */ + /* jumps to label `Exit` if an error occurs. */ +#define FT_CALL( x ) do \ + { \ + error = ( x ); \ + if ( error != FT_Err_Ok ) \ + goto Exit; \ + } while ( 0 ) + + + /* + * The macro `VECTOR_LENGTH_16D16` computes either squared distances or + * actual distances, depending on the value of `USE_SQUARED_DISTANCES`. + * + * By using squared distances the performance can be greatly improved but + * there is a risk of overflow. + */ +#if USE_SQUARED_DISTANCES +#define VECTOR_LENGTH_16D16( v ) ( FT_MulFix( v.x, v.x ) + \ + FT_MulFix( v.y, v.y ) ) +#else +#define VECTOR_LENGTH_16D16( v ) FT_Vector_Length( &v ) +#endif + + + /************************************************************************** + * + * common typedefs + * + */ + + typedef FT_Vector FT_26D6_Vec; /* with 26.6 fixed-point components */ + typedef FT_Vector FT_16D16_Vec; /* with 16.16 fixed-point components */ + + typedef FT_Fixed FT_16D16; /* 16.16 fixed-point representation */ + typedef FT_Fixed FT_26D6; /* 26.6 fixed-point representation */ + typedef FT_Byte FT_SDFFormat; /* format to represent SDF data */ + + typedef FT_BBox FT_CBox; /* control box of a curve */ + + + FT_LOCAL( FT_16D16 ) + square_root( FT_16D16 val ); + + FT_LOCAL( FT_SDFFormat ) + map_fixed_to_sdf( FT_16D16 dist, + FT_16D16 max_value ); + + FT_LOCAL( FT_SDFFormat ) + invert_sign( FT_SDFFormat dist ); + + +FT_END_HEADER + +#endif /* FTSDFCOMMON_H_ */ + + +/* END */ diff --git a/src/sdf/ftsdferrs.h b/src/sdf/ftsdferrs.h new file mode 100644 index 000000000..dbb113d53 --- /dev/null +++ b/src/sdf/ftsdferrs.h @@ -0,0 +1,37 @@ +/**************************************************************************** + * + * ftsdferrs.h + * + * Signed Distance Field error codes (specification only). + * + * Copyright (C) 2020-2021 by + * David Turner, Robert Wilhelm, and Werner Lemberg. + * + * Written by Anuj Verma. + * + * This file is part of the FreeType project, and may only be used, + * modified, and distributed under the terms of the FreeType project + * license, LICENSE.TXT. By continuing to use, modify, or distribute + * this file you indicate that you have read the license and + * understand and accept it fully. + * + */ + + +#ifndef FTSDFERRS_H_ +#define FTSDFERRS_H_ + +#include <freetype/ftmoderr.h> + +#undef FTERRORS_H_ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX Sdf_Err_ +#define FT_ERR_BASE FT_Mod_Err_Sdf + +#include <freetype/fterrors.h> + +#endif /* FTSDFERRS_H_ */ + + +/* END */ diff --git a/src/sdf/ftsdfrend.c b/src/sdf/ftsdfrend.c new file mode 100644 index 000000000..30f2e62a4 --- /dev/null +++ b/src/sdf/ftsdfrend.c @@ -0,0 +1,614 @@ +/**************************************************************************** + * + * ftsdfrend.c + * + * Signed Distance Field renderer interface (body). + * + * Copyright (C) 2020-2021 by + * David Turner, Robert Wilhelm, and Werner Lemberg. + * + * Written by Anuj Verma. + * + * This file is part of the FreeType project, and may only be used, + * modified, and distributed under the terms of the FreeType project + * license, LICENSE.TXT. By continuing to use, modify, or distribute + * this file you indicate that you have read the license and + * understand and accept it fully. + * + */ + + +#include <freetype/internal/ftdebug.h> +#include <freetype/internal/ftobjs.h> +#include <freetype/internal/services/svprop.h> +#include <freetype/ftoutln.h> +#include <freetype/ftbitmap.h> +#include "ftsdfrend.h" +#include "ftsdf.h" + +#include "ftsdferrs.h" + + + /************************************************************************** + * + * The macro FT_COMPONENT is used in trace mode. It is an implicit + * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log + * messages during execution. + */ +#undef FT_COMPONENT +#define FT_COMPONENT sdf + + + /************************************************************************** + * + * macros and default property values + * + */ +#define SDF_RENDERER( rend ) ( (SDF_Renderer)rend ) + + + /************************************************************************** + * + * for setting properties + * + */ + + /* property setter function */ + static FT_Error + sdf_property_set( FT_Module module, + const char* property_name, + const void* value, + FT_Bool value_is_string ) + { + FT_Error error = FT_Err_Ok; + SDF_Renderer render = SDF_RENDERER( FT_RENDERER( module ) ); + + FT_UNUSED( value_is_string ); + + + if ( ft_strcmp( property_name, "spread" ) == 0 ) + { + FT_Int val = *(const FT_Int*)value; + + + if ( val > MAX_SPREAD || val < MIN_SPREAD ) + { + FT_TRACE0(( "[sdf] sdf_property_set:" + " the `spread' property can have a value\n" )); + FT_TRACE0(( " " + " within range [%d, %d] (value provided: %d)\n", + MIN_SPREAD, MAX_SPREAD, val )); + + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + render->spread = (FT_UInt)val; + FT_TRACE7(( "[sdf] sdf_property_set:" + " updated property `spread' to %d\n", val )); + } + + else if ( ft_strcmp( property_name, "flip_sign" ) == 0 ) + { + FT_Int val = *(const FT_Int*)value; + + + render->flip_sign = val ? 1 : 0; + FT_TRACE7(( "[sdf] sdf_property_set:" + " updated property `flip_sign' to %d\n", val )); + } + + else if ( ft_strcmp( property_name, "flip_y" ) == 0 ) + { + FT_Int val = *(const FT_Int*)value; + + + render->flip_y = val ? 1 : 0; + FT_TRACE7(( "[sdf] sdf_property_set:" + " updated property `flip_y' to %d\n", val )); + } + + else if ( ft_strcmp( property_name, "overlaps" ) == 0 ) + { + FT_Bool val = *(const FT_Bool*)value; + + + render->overlaps = val; + FT_TRACE7(( "[sdf] sdf_property_set:" + " updated property `overlaps' to %d\n", val )); + } + + else + { + FT_TRACE0(( "[sdf] sdf_property_set:" + " missing property `%s'\n", property_name )); + error = FT_THROW( Missing_Property ); + } + + Exit: + return error; + } + + + /* property getter function */ + static FT_Error + sdf_property_get( FT_Module module, + const char* property_name, + void* value ) + { + FT_Error error = FT_Err_Ok; + SDF_Renderer render = SDF_RENDERER( FT_RENDERER( module ) ); + + + if ( ft_strcmp( property_name, "spread" ) == 0 ) + { + FT_UInt* val = (FT_UInt*)value; + + + *val = render->spread; + } + + else if ( ft_strcmp( property_name, "flip_sign" ) == 0 ) + { + FT_Int* val = (FT_Int*)value; + + + *val = render->flip_sign; + } + + else if ( ft_strcmp( property_name, "flip_y" ) == 0 ) + { + FT_Int* val = (FT_Int*)value; + + + *val = render->flip_y; + } + + else if ( ft_strcmp( property_name, "overlaps" ) == 0 ) + { + FT_Int* val = (FT_Int*)value; + + + *val = render->overlaps; + } + + else + { + FT_TRACE0(( "[sdf] sdf_property_get:" + " missing property `%s'\n", property_name )); + error = FT_THROW( Missing_Property ); + } + + return error; + } + + + FT_DEFINE_SERVICE_PROPERTIESREC( + sdf_service_properties, + + (FT_Properties_SetFunc)sdf_property_set, /* set_property */ + (FT_Properties_GetFunc)sdf_property_get ) /* get_property */ + + + FT_DEFINE_SERVICEDESCREC1( + sdf_services, + + FT_SERVICE_ID_PROPERTIES, &sdf_service_properties ) + + + static FT_Module_Interface + ft_sdf_requester( FT_Renderer render, + const char* module_interface ) + { + FT_UNUSED( render ); + + return ft_service_list_lookup( sdf_services, module_interface ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /** **/ + /** OUTLINE TO SDF CONVERTER **/ + /** **/ + /*************************************************************************/ + /*************************************************************************/ + + /************************************************************************** + * + * interface functions + * + */ + + static FT_Error + ft_sdf_init( FT_Renderer render ) + { + SDF_Renderer sdf_render = SDF_RENDERER( render ); + + + sdf_render->spread = DEFAULT_SPREAD; + sdf_render->flip_sign = 0; + sdf_render->flip_y = 0; + sdf_render->overlaps = 0; + + return FT_Err_Ok; + } + + + static void + ft_sdf_done( FT_Renderer render ) + { + FT_UNUSED( render ); + } + + + /* generate signed distance field from a glyph's slot image */ + static FT_Error + ft_sdf_render( FT_Renderer module, + FT_GlyphSlot slot, + FT_Render_Mode mode, + const FT_Vector* origin ) + { + FT_Error error = FT_Err_Ok; + FT_Outline* outline = &slot->outline; + FT_Bitmap* bitmap = &slot->bitmap; + FT_Memory memory = NULL; + FT_Renderer render = NULL; + + FT_Pos x_shift = 0; + FT_Pos y_shift = 0; + + FT_Pos x_pad = 0; + FT_Pos y_pad = 0; + + SDF_Raster_Params params; + SDF_Renderer sdf_module = SDF_RENDERER( module ); + + + render = &sdf_module->root; + memory = render->root.memory; + + /* check whether slot format is correct before rendering */ + if ( slot->format != render->glyph_format ) + { + error = FT_THROW( Invalid_Glyph_Format ); + goto Exit; + } + + /* check whether render mode is correct */ + if ( mode != FT_RENDER_MODE_SDF ) + { + error = FT_THROW( Cannot_Render_Glyph ); + goto Exit; + } + + /* deallocate the previously allocated bitmap */ + if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) + { + FT_FREE( bitmap->buffer ); + slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP; + } + + /* preset the bitmap using the glyph's outline; */ + /* the sdf bitmap is similar to an anti-aliased bitmap */ + /* with a slightly bigger size and different pixel mode */ + if ( ft_glyphslot_preset_bitmap( slot, FT_RENDER_MODE_NORMAL, origin ) ) + { + error = FT_THROW( Raster_Overflow ); + goto Exit; + } + + /* the rows and pitch must be valid after presetting the */ + /* bitmap using outline */ + if ( !bitmap->rows || !bitmap->pitch ) + { + FT_ERROR(( "ft_sdf_render: failed to preset bitmap\n" )); + + error = FT_THROW( Cannot_Render_Glyph ); + goto Exit; + } + + /* the padding will simply be equal to the `spread' */ + x_pad = sdf_module->spread; + y_pad = sdf_module->spread; + + /* apply the padding; will be in all the directions */ + bitmap->rows += y_pad * 2; + bitmap->width += x_pad * 2; + + /* ignore the pitch, pixel mode and set custom */ + bitmap->pixel_mode = FT_PIXEL_MODE_GRAY; + bitmap->pitch = (int)( bitmap->width ); + bitmap->num_grays = 255; + + /* allocate new buffer */ + if ( FT_ALLOC_MULT( bitmap->buffer, bitmap->rows, bitmap->pitch ) ) + goto Exit; + + slot->internal->flags |= FT_GLYPH_OWN_BITMAP; + + slot->bitmap_top += y_pad; + slot->bitmap_left -= x_pad; + + x_shift = 64 * -slot->bitmap_left; + y_shift = 64 * -slot->bitmap_top; + y_shift += 64 * (FT_Int)bitmap->rows; + + if ( origin ) + { + x_shift += origin->x; + y_shift += origin->y; + } + + /* translate outline to render it into the bitmap */ + if ( x_shift || y_shift ) + FT_Outline_Translate( outline, x_shift, y_shift ); + + /* set up parameters */ + params.root.target = bitmap; + params.root.source = outline; + params.root.flags = FT_RASTER_FLAG_SDF; + params.spread = sdf_module->spread; + params.flip_sign = sdf_module->flip_sign; + params.flip_y = sdf_module->flip_y; + params.overlaps = sdf_module->overlaps; + + /* render the outline */ + error = render->raster_render( render->raster, + (const FT_Raster_Params*)¶ms ); + + /* transform the outline back to the original state */ + if ( x_shift || y_shift ) + FT_Outline_Translate( outline, -x_shift, -y_shift ); + + Exit: + if ( !error ) + { + /* the glyph is successfully rendered to a bitmap */ + slot->format = FT_GLYPH_FORMAT_BITMAP; + } + else if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) + { + FT_FREE( bitmap->buffer ); + slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP; + } + + return error; + } + + + /* transform the glyph using matrix and/or delta */ + static FT_Error + ft_sdf_transform( FT_Renderer render, + FT_GlyphSlot slot, + const FT_Matrix* matrix, + const FT_Vector* delta ) + { + FT_Error error = FT_Err_Ok; + + + if ( slot->format != render->glyph_format ) + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + if ( matrix ) + FT_Outline_Transform( &slot->outline, matrix ); + + if ( delta ) + FT_Outline_Translate( &slot->outline, delta->x, delta->y ); + + Exit: + return error; + } + + + /* return the control box of a glyph's outline */ + static void + ft_sdf_get_cbox( FT_Renderer render, + FT_GlyphSlot slot, + FT_BBox* cbox ) + { + FT_ZERO( cbox ); + + if ( slot->format == render->glyph_format ) + FT_Outline_Get_CBox( &slot->outline, cbox ); + } + + + /* set render specific modes or attributes */ + static FT_Error + ft_sdf_set_mode( FT_Renderer render, + FT_ULong mode_tag, + FT_Pointer data ) + { + /* pass it to the rasterizer */ + return render->clazz->raster_class->raster_set_mode( render->raster, + mode_tag, + data ); + } + + + FT_DEFINE_RENDERER( + ft_sdf_renderer_class, + + FT_MODULE_RENDERER, + sizeof ( SDF_Renderer_Module ), + + "sdf", + 0x10000L, + 0x20000L, + + NULL, + + (FT_Module_Constructor)ft_sdf_init, + (FT_Module_Destructor) ft_sdf_done, + (FT_Module_Requester) ft_sdf_requester, + + FT_GLYPH_FORMAT_OUTLINE, + + (FT_Renderer_RenderFunc) ft_sdf_render, /* render_glyph */ + (FT_Renderer_TransformFunc)ft_sdf_transform, /* transform_glyph */ + (FT_Renderer_GetCBoxFunc) ft_sdf_get_cbox, /* get_glyph_cbox */ + (FT_Renderer_SetModeFunc) ft_sdf_set_mode, /* set_mode */ + + (FT_Raster_Funcs*)&ft_sdf_raster /* raster_class */ + ) + + + /*************************************************************************/ + /*************************************************************************/ + /** **/ + /** BITMAP TO SDF CONVERTER **/ + /** **/ + /*************************************************************************/ + /*************************************************************************/ + + /* generate signed distance field from glyph's bitmap */ + static FT_Error + ft_bsdf_render( FT_Renderer module, + FT_GlyphSlot slot, + FT_Render_Mode mode, + const FT_Vector* origin ) + { + FT_Error error = FT_Err_Ok; + FT_Memory memory = NULL; + + FT_Bitmap* bitmap = &slot->bitmap; + FT_Renderer render = NULL; + FT_Bitmap target; + + FT_Pos x_pad = 0; + FT_Pos y_pad = 0; + + SDF_Raster_Params params; + SDF_Renderer sdf_module = SDF_RENDERER( module ); + + + /* initialize the bitmap in case any error occurs */ + FT_Bitmap_Init( &target ); + + render = &sdf_module->root; + memory = render->root.memory; + + /* check whether slot format is correct before rendering */ + if ( slot->format != render->glyph_format ) + { + error = FT_THROW( Invalid_Glyph_Format ); + goto Exit; + } + + /* check whether render mode is correct */ + if ( mode != FT_RENDER_MODE_SDF ) + { + error = FT_THROW( Cannot_Render_Glyph ); + goto Exit; + } + + if ( origin ) + { + FT_ERROR(( "ft_bsdf_render: can't translate the bitmap\n" )); + + error = FT_THROW( Unimplemented_Feature ); + goto Exit; + } + + /* Do not generate SDF if the bitmap is not owned by the */ + /* glyph: it might be that the source buffer is already freed. */ + if ( !( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) ) + { + FT_ERROR(( "ft_bsdf_render: can't generate SDF from" + " unowned source bitmap\n" )); + + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + if ( !bitmap->rows || !bitmap->pitch ) + { + FT_ERROR(( "ft_bsdf_render: invalid bitmap size\n" )); + + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + + FT_Bitmap_New( &target ); + + /* padding will simply be equal to `spread` */ + x_pad = sdf_module->spread; + y_pad = sdf_module->spread; + + /* apply padding, which extends to all directions */ + target.rows = bitmap->rows + y_pad * 2; + target.width = bitmap->width + x_pad * 2; + + /* set up the target bitmap */ + target.pixel_mode = FT_PIXEL_MODE_GRAY; + target.pitch = (int)( target.width ); + target.num_grays = 255; + + if ( FT_ALLOC_MULT( target.buffer, target.rows, target.pitch ) ) + goto Exit; + + /* set up parameters */ + params.root.target = ⌖ + params.root.source = bitmap; + params.root.flags = FT_RASTER_FLAG_SDF; + params.spread = sdf_module->spread; + params.flip_sign = sdf_module->flip_sign; + params.flip_y = sdf_module->flip_y; + + error = render->raster_render( render->raster, + (const FT_Raster_Params*)¶ms ); + + Exit: + if ( !error ) + { + /* the glyph is successfully converted to a SDF */ + if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) + { + FT_FREE( bitmap->buffer ); + slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP; + } + + slot->bitmap = target; + slot->bitmap_top += y_pad; + slot->bitmap_left -= x_pad; + slot->internal->flags |= FT_GLYPH_OWN_BITMAP; + } + else if ( target.buffer ) + FT_FREE( target.buffer ); + + return error; + } + + + FT_DEFINE_RENDERER( + ft_bitmap_sdf_renderer_class, + + FT_MODULE_RENDERER, + sizeof ( SDF_Renderer_Module ), + + "bsdf", + 0x10000L, + 0x20000L, + + NULL, + + (FT_Module_Constructor)ft_sdf_init, + (FT_Module_Destructor) ft_sdf_done, + (FT_Module_Requester) ft_sdf_requester, + + FT_GLYPH_FORMAT_BITMAP, + + (FT_Renderer_RenderFunc) ft_bsdf_render, /* render_glyph */ + (FT_Renderer_TransformFunc)ft_sdf_transform, /* transform_glyph */ + (FT_Renderer_GetCBoxFunc) ft_sdf_get_cbox, /* get_glyph_cbox */ + (FT_Renderer_SetModeFunc) ft_sdf_set_mode, /* set_mode */ + + (FT_Raster_Funcs*)&ft_bitmap_sdf_raster /* raster_class */ + ) + + +/* END */ diff --git a/src/sdf/ftsdfrend.h b/src/sdf/ftsdfrend.h new file mode 100644 index 000000000..bc88707ec --- /dev/null +++ b/src/sdf/ftsdfrend.h @@ -0,0 +1,118 @@ +/**************************************************************************** + * + * ftsdfrend.h + * + * Signed Distance Field renderer interface (specification). + * + * Copyright (C) 2020-2021 by + * David Turner, Robert Wilhelm, and Werner Lemberg. + * + * Written by Anuj Verma. + * + * This file is part of the FreeType project, and may only be used, + * modified, and distributed under the terms of the FreeType project + * license, LICENSE.TXT. By continuing to use, modify, or distribute + * this file you indicate that you have read the license and + * understand and accept it fully. + * + */ + + +#ifndef FTSDFREND_H_ +#define FTSDFREND_H_ + +#include <freetype/ftrender.h> +#include <freetype/ftmodapi.h> +#include <freetype/internal/ftobjs.h> + +FT_BEGIN_HEADER + + + /************************************************************************** + * + * @struct: + * SDF_Renderer_Module + * + * @description: + * This struct extends the native renderer struct `FT_RendererRec`. It + * is basically used to store various parameters required by the + * renderer and some additional parameters that can be used to tweak the + * output of the renderer. + * + * @fields: + * root :: + * The native rendere struct. + * + * spread :: + * This is an essential parameter/property required by the renderer. + * `spread` defines the maximum unsigned value that is present in the + * final SDF output. For the default value check file + * `ftsdfcommon.h`. + * + * flip_sign :: + * By default positive values indicate positions inside of contours, + * i.e., filled by a contour. If this property is true then that + * output will be the opposite of the default, i.e., negative values + * indicate positions inside of contours. + * + * flip_y :: + * Setting this parameter to true makes the output image flipped + * along the y-axis. + * + * overlaps :: + * Set this to true to generate SDF for glyphs having overlapping + * contours. The overlapping support is limited to glyphs that do not + * have self-intersecting contours. Also, removing overlaps require a + * considerable amount of extra memory; additionally, it will not work + * if generating SDF from bitmap. + * + * @note: + * All properties except `overlaps` are valid for both the 'sdf' and + * 'bsdf' renderers. + * + */ + typedef struct SDF_Renderer_Module_ + { + FT_RendererRec root; + FT_UInt spread; + FT_Bool flip_sign; + FT_Bool flip_y; + FT_Bool overlaps; + + } SDF_Renderer_Module, *SDF_Renderer; + + + /************************************************************************** + * + * @renderer: + * ft_sdf_renderer_class + * + * @description: + * Renderer to convert @FT_Outline to signed distance fields. + * + */ + FT_DECLARE_RENDERER( ft_sdf_renderer_class ) + + + /************************************************************************** + * + * @renderer: + * ft_bitmap_sdf_renderer_class + * + * @description: + * This is not exactly a renderer; it is just a converter that + * transforms bitmaps to signed distance fields. + * + * @note: + * This is not a separate module, it is part of the 'sdf' module. + * + */ + FT_DECLARE_RENDERER( ft_bitmap_sdf_renderer_class ) + + +FT_END_HEADER + +#endif /* FTSDFREND_H_ */ + + +/* END */ diff --git a/src/sdf/module.mk b/src/sdf/module.mk new file mode 100644 index 000000000..6be4b0c6d --- /dev/null +++ b/src/sdf/module.mk @@ -0,0 +1,29 @@ +# +# FreeType 2 Signed Distance Field module definition +# + + +# Copyright (C) 2020-2021 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +FTMODULE_H_COMMANDS += SDF_RENDERER +FTMODULE_H_COMMANDS += BSDF_RENDERER + +define SDF_RENDERER +$(OPEN_DRIVER) FT_Renderer_Class, ft_sdf_renderer_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)sdf $(ECHO_DRIVER_DESC)signed distance field renderer$(ECHO_DRIVER_DONE) +endef + +define BSDF_RENDERER +$(OPEN_DRIVER) FT_Renderer_Class, ft_bitmap_sdf_renderer_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)bsdf $(ECHO_DRIVER_DESC)bitmap to signed distance field converter$(ECHO_DRIVER_DONE) +endef + +#EOF diff --git a/src/sdf/rules.mk b/src/sdf/rules.mk new file mode 100644 index 000000000..7e7e4fbe8 --- /dev/null +++ b/src/sdf/rules.mk @@ -0,0 +1,78 @@ +# +# FreeType 2 Signed Distance Field driver configuration rules +# + + +# Copyright (C) 2020-2021 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# sdf driver directory +# +SDF_DIR := $(SRC_DIR)/sdf + + +# compilation flags for the driver +# +SDF_COMPILE := $(CC) $(ANSIFLAGS) \ + $I$(subst /,$(COMPILER_SEP),$(SDF_DIR)) \ + $(INCLUDE_FLAGS) \ + $(FT_CFLAGS) + + +# sdf driver sources (i.e., C files) +# +SDF_DRV_SRC := $(SDF_DIR)/ftsdfrend.c \ + $(SDF_DIR)/ftsdf.c \ + $(SDF_DIR)/ftbsdf.c \ + $(SDF_DIR)/ftsdfcommon.c + + +# sdf driver headers +# +SDF_DRV_H := $(SDF_DIR)/ftsdfrend.h \ + $(SDF_DIR)/ftsdf.h \ + $(SDF_DIR)/ftsdferrs.h \ + $(SDF_DIR)/ftsdfcommon.h + + +# sdf driver object(s) +# +# SDF_DRV_OBJ_M is used during `multi' builds. +# SDF_DRV_OBJ_S is used during `single' builds. +# +SDF_DRV_OBJ_M := $(SDF_DRV_SRC:$(SDF_DIR)/%.c=$(OBJ_DIR)/%.$O) +SDF_DRV_OBJ_S := $(OBJ_DIR)/sdf.$O + + +# sdf driver source file for single build +# +SDF_DRV_SRC_S := $(SDF_DIR)/sdf.c + + +# sdf driver - single object +# +$(SDF_DRV_OBJ_S): $(SDF_DRV_SRC_S) $(SDF_DRV_SRC) \ + $(FREETYPE_H) $(SDF_DRV_H) + $(SDF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(SDF_DRV_SRC_S)) + + +# sdf driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(SDF_DIR)/%.c $(FREETYPE_H) $(SDF_DRV_H) + $(SDF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver list +# +DRV_OBJS_S += $(SDF_DRV_OBJ_S) +DRV_OBJS_M += $(SDF_DRV_OBJ_M) + + +# EOF diff --git a/src/sdf/sdf.c b/src/sdf/sdf.c new file mode 100644 index 000000000..1bc3fc385 --- /dev/null +++ b/src/sdf/sdf.c @@ -0,0 +1,29 @@ +/**************************************************************************** + * + * sdf.c + * + * FreeType Signed Distance Field renderer module component (body only). + * + * Copyright (C) 2020-2021 by + * David Turner, Robert Wilhelm, and Werner Lemberg. + * + * Written by Anuj Verma. + * + * This file is part of the FreeType project, and may only be used, + * modified, and distributed under the terms of the FreeType project + * license, LICENSE.TXT. By continuing to use, modify, or distribute + * this file you indicate that you have read the license and + * understand and accept it fully. + * + */ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include "ftsdfrend.c" +#include "ftsdfcommon.c" +#include "ftbsdf.c" +#include "ftsdf.c" + + +/* END */ diff --git a/src/sfnt/module.mk b/src/sfnt/module.mk index 0f459d842..eabd48f60 100644 --- a/src/sfnt/module.mk +++ b/src/sfnt/module.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/sfnt/pngshim.c b/src/sfnt/pngshim.c index f55016122..02fe37440 100644 --- a/src/sfnt/pngshim.c +++ b/src/sfnt/pngshim.c @@ -4,7 +4,7 @@ * * PNG Bitmap glyph support. * - * Copyright (C) 2013-2020 by + * Copyright (C) 2013-2021 by * Google, Inc. * Written by Stuart Gill and Behdad Esfahbod. * @@ -270,7 +270,10 @@ int bitdepth, color_type, interlace; FT_Int i; - png_byte* *rows = NULL; /* pacify compiler */ + + /* `rows` gets modified within a 'setjmp' scope; */ + /* we thus need the `volatile` keyword. */ + png_byte* *volatile rows = NULL; if ( x_offset < 0 || @@ -427,7 +430,7 @@ goto DestroyExit; } - if ( FT_NEW_ARRAY( rows, imgHeight ) ) + if ( FT_QNEW_ARRAY( rows, imgHeight ) ) { error = FT_THROW( Out_Of_Memory ); goto DestroyExit; @@ -438,11 +441,11 @@ png_read_image( png, rows ); - FT_FREE( rows ); - png_read_end( png, info ); DestroyExit: + /* even if reading fails with longjmp, rows must be freed */ + FT_FREE( rows ); png_destroy_read_struct( &png, &info, NULL ); FT_Stream_Close( &stream ); diff --git a/src/sfnt/pngshim.h b/src/sfnt/pngshim.h index 2d6e83d69..89efd2754 100644 --- a/src/sfnt/pngshim.h +++ b/src/sfnt/pngshim.h @@ -4,7 +4,7 @@ * * PNG Bitmap glyph support. * - * Copyright (C) 2013-2020 by + * Copyright (C) 2013-2021 by * Google, Inc. * Written by Stuart Gill and Behdad Esfahbod. * diff --git a/src/sfnt/rules.mk b/src/sfnt/rules.mk index f56ef060e..d41305c0a 100644 --- a/src/sfnt/rules.mk +++ b/src/sfnt/rules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/sfnt/sfdriver.c b/src/sfnt/sfdriver.c index 0460339a7..d1d01c99e 100644 --- a/src/sfnt/sfdriver.c +++ b/src/sfnt/sfdriver.c @@ -4,7 +4,7 @@ * * High-level SFNT driver interface (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -501,7 +501,7 @@ FT_UNUSED( error ); - if ( FT_ALLOC( result, entry->stringLength / 2 + 1 ) ) + if ( FT_QALLOC( result, entry->stringLength / 2 + 1 ) ) return NULL; if ( FT_STREAM_SEEK( entry->stringOffset ) || @@ -560,7 +560,7 @@ FT_UNUSED( error ); - if ( FT_ALLOC( result, entry->stringLength + 1 ) ) + if ( FT_QALLOC( result, entry->stringLength + 1 ) ) return NULL; if ( FT_STREAM_SEEK( entry->stringOffset ) || @@ -868,8 +868,8 @@ result[len] = '\0'; FT_TRACE0(( "sfnt_get_var_ps_name:" - " Shortening variation PS name prefix\n" - " " + " Shortening variation PS name prefix\n" )); + FT_TRACE0(( " " " to %d characters\n", len )); } @@ -920,16 +920,16 @@ if ( !subfamily_name ) { FT_TRACE1(( "sfnt_get_var_ps_name:" - " can't construct named instance PS name;\n" - " " + " can't construct named instance PS name;\n" )); + FT_TRACE1(( " " " trying to construct normal instance PS name\n" )); goto construct_instance_name; } /* after the prefix we have character `-' followed by the */ /* subfamily name (using only characters a-z, A-Z, and 0-9) */ - if ( FT_ALLOC( result, face->var_postscript_prefix_len + - 1 + ft_strlen( subfamily_name ) + 1 ) ) + if ( FT_QALLOC( result, face->var_postscript_prefix_len + + 1 + ft_strlen( subfamily_name ) + 1 ) ) return NULL; ft_strcpy( result, face->var_postscript_prefix ); @@ -957,9 +957,9 @@ construct_instance_name: axis = mm_var->axis; - if ( FT_ALLOC( result, - face->var_postscript_prefix_len + - num_coords * MAX_VALUE_DESCRIPTOR_LEN + 1 ) ) + if ( FT_QALLOC( result, + face->var_postscript_prefix_len + + num_coords * MAX_VALUE_DESCRIPTOR_LEN + 1 ) ) return NULL; p = result; @@ -993,6 +993,7 @@ if ( t != ' ' && ft_isalnum( t ) ) *p++ = t; } + *p++ = '\0'; } check_length: @@ -1213,6 +1214,8 @@ #define PUT_COLOR_LAYERS( a ) NULL #endif +#define PUT_COLOR_LAYERS_V1( a ) PUT_COLOR_LAYERS( a ) + #ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES #define PUT_PS_NAMES( a ) a #else @@ -1271,9 +1274,9 @@ /* TT_Free_Table_Func free_eblc */ PUT_EMBEDDED_BITMAPS( tt_face_set_sbit_strike ), - /* TT_Set_SBit_Strike_Func set_sbit_strike */ + /* TT_Set_SBit_Strike_Func set_sbit_strike */ PUT_EMBEDDED_BITMAPS( tt_face_load_strike_metrics ), - /* TT_Load_Strike_Metrics_Func load_strike_metrics */ + /* TT_Load_Strike_Metrics_Func load_strike_metrics */ PUT_COLOR_LAYERS( tt_face_load_cpal ), /* TT_Load_Table_Func load_cpal */ @@ -1287,6 +1290,18 @@ /* TT_Set_Palette_Func set_palette */ PUT_COLOR_LAYERS( tt_face_get_colr_layer ), /* TT_Get_Colr_Layer_Func get_colr_layer */ + + PUT_COLOR_LAYERS_V1( tt_face_get_colr_glyph_paint ), + /* TT_Get_Color_Glyph_Paint_Func get_colr_glyph_paint */ + PUT_COLOR_LAYERS_V1( tt_face_get_color_glyph_clipbox ), + /* TT_Get_Color_Glyph_ClipBox_Func get_clipbox */ + PUT_COLOR_LAYERS_V1( tt_face_get_paint_layers ), + /* TT_Get_Paint_Layers_Func get_paint_layers */ + PUT_COLOR_LAYERS_V1( tt_face_get_colorline_stops ), + /* TT_Get_Paint get_paint */ + PUT_COLOR_LAYERS_V1( tt_face_get_paint ), + /* TT_Get_Colorline_Stops_Func get_colorline_stops */ + PUT_COLOR_LAYERS( tt_face_colr_blend_layer ), /* TT_Blend_Colr_Func colr_blend */ diff --git a/src/sfnt/sfdriver.h b/src/sfnt/sfdriver.h index 1ac270632..8d5b5ce36 100644 --- a/src/sfnt/sfdriver.h +++ b/src/sfnt/sfdriver.h @@ -4,7 +4,7 @@ * * High-level SFNT driver interface (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/sfnt/sferrors.h b/src/sfnt/sferrors.h index 55c3e76b6..78e6f0351 100644 --- a/src/sfnt/sferrors.h +++ b/src/sfnt/sferrors.h @@ -4,7 +4,7 @@ * * SFNT error codes (specification only). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/sfnt/sfnt.c b/src/sfnt/sfnt.c index 471239ff0..97692cdfb 100644 --- a/src/sfnt/sfnt.c +++ b/src/sfnt/sfnt.c @@ -4,7 +4,7 @@ * * Single object library component. * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/sfnt/sfobjs.c b/src/sfnt/sfobjs.c index 39460be2e..789102479 100644 --- a/src/sfnt/sfobjs.c +++ b/src/sfnt/sfobjs.c @@ -4,7 +4,7 @@ * * SFNT object management (base). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -65,7 +65,7 @@ len = (FT_UInt)entry->stringLength / 2; - if ( FT_NEW_ARRAY( string, len + 1 ) ) + if ( FT_QNEW_ARRAY( string, len + 1 ) ) return NULL; for ( n = 0; n < len; n++ ) @@ -100,7 +100,7 @@ len = (FT_UInt)entry->stringLength; - if ( FT_NEW_ARRAY( string, len + 1 ) ) + if ( FT_QNEW_ARRAY( string, len + 1 ) ) return NULL; for ( n = 0; n < len; n++ ) @@ -360,17 +360,27 @@ FT_FRAME_END }; +#ifndef FT_CONFIG_OPTION_USE_BROTLI + FT_UNUSED( face_instance_index ); + FT_UNUSED( woff2_num_faces ); +#endif + face->ttc_header.tag = 0; face->ttc_header.version = 0; face->ttc_header.count = 0; +#if defined( FT_CONFIG_OPTION_USE_ZLIB ) || \ + defined( FT_CONFIG_OPTION_USE_BROTLI ) retry: +#endif + offset = FT_STREAM_POS(); if ( FT_READ_ULONG( tag ) ) return error; +#ifdef FT_CONFIG_OPTION_USE_ZLIB if ( tag == TTAG_wOFF ) { FT_TRACE2(( "sfnt_open_font: file is a WOFF; synthesizing SFNT\n" )); @@ -386,7 +396,9 @@ stream = face->root.stream; goto retry; } +#endif +#ifdef FT_CONFIG_OPTION_USE_BROTLI if ( tag == TTAG_wOF2 ) { FT_TRACE2(( "sfnt_open_font: file is a WOFF2; synthesizing SFNT\n" )); @@ -405,6 +417,7 @@ stream = face->root.stream; goto retry; } +#endif if ( tag != 0x00010000UL && tag != TTAG_ttcf && @@ -446,7 +459,7 @@ return FT_THROW( Array_Too_Large ); /* now read the offsets of each font in the file */ - if ( FT_NEW_ARRAY( face->ttc_header.offsets, face->ttc_header.count ) ) + if ( FT_QNEW_ARRAY( face->ttc_header.offsets, face->ttc_header.count ) ) return error; if ( FT_FRAME_ENTER( face->ttc_header.count * 4L ) ) @@ -464,7 +477,7 @@ face->ttc_header.version = 1 << 16; face->ttc_header.count = 1; - if ( FT_NEW( face->ttc_header.offsets ) ) + if ( FT_QNEW( face->ttc_header.offsets ) ) return error; face->ttc_header.offsets[0] = offset; @@ -643,8 +656,8 @@ */ if ( ( face->variation_support & TT_FACE_FLAG_VAR_FVAR ) && - !( FT_ALLOC( default_values, num_axes * 4 ) || - FT_ALLOC( instance_values, num_axes * 4 ) ) ) + !( FT_QALLOC( default_values, num_axes * 4 ) || + FT_QALLOC( instance_values, num_axes * 4 ) ) ) { /* the current stream position is 16 bytes after the table start */ FT_ULong array_start = FT_STREAM_POS() - 16 + offset; @@ -820,7 +833,8 @@ /* it doesn't contain outlines. */ /* */ - FT_TRACE2(( "sfnt_load_face: %p\n\n", (void *)face )); + FT_TRACE2(( "sfnt_load_face: %p\n", (void *)face )); + FT_TRACE2(( "\n" )); /* do we have outlines in there? */ #ifdef FT_CONFIG_OPTION_INCREMENTAL @@ -1149,9 +1163,10 @@ } /* synthesize Unicode charmap if one is missing */ - if ( !has_unicode ) + if ( !has_unicode && + root->face_flags & FT_FACE_FLAG_GLYPH_NAMES ) { - FT_CharMapRec cmaprec; + FT_CharMapRec cmaprec; cmaprec.face = root; @@ -1207,7 +1222,7 @@ /* of `FT_Face', we map `available_sizes' indices to strike */ /* indices */ if ( FT_NEW_ARRAY( root->available_sizes, count ) || - FT_NEW_ARRAY( sbit_strike_map, count ) ) + FT_QNEW_ARRAY( sbit_strike_map, count ) ) goto Exit; bsize_idx = 0; @@ -1236,7 +1251,7 @@ } /* reduce array size to the actually used elements */ - (void)FT_RENEW_ARRAY( sbit_strike_map, count, bsize_idx ); + FT_MEM_QRENEW_ARRAY( sbit_strike_map, count, bsize_idx ); /* from now on, all strike indices are mapped */ /* using `sbit_strike_map' */ diff --git a/src/sfnt/sfobjs.h b/src/sfnt/sfobjs.h index e8e304208..172c47ebb 100644 --- a/src/sfnt/sfobjs.h +++ b/src/sfnt/sfobjs.h @@ -4,7 +4,7 @@ * * SFNT object management (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/sfnt/sfwoff.c b/src/sfnt/sfwoff.c index f0a32e1e0..422c816a2 100644 --- a/src/sfnt/sfwoff.c +++ b/src/sfnt/sfwoff.c @@ -4,7 +4,7 @@ * * WOFF format management (base). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -23,6 +23,9 @@ #include <freetype/ftgzip.h> +#ifdef FT_CONFIG_OPTION_USE_ZLIB + + /************************************************************************** * * The macro FT_COMPONENT is used in trace mode. It is an implicit @@ -66,7 +69,7 @@ } - FT_CALLBACK_DEF( int ) + FT_COMPARE_DEF( int ) compare_offsets( const void* a, const void* b ) { @@ -109,7 +112,7 @@ FT_ULong sfnt_offset; FT_Int nn; - FT_ULong old_tag = 0; + FT_Tag old_tag = 0; static const FT_Frame_Field woff_header_fields[] = { @@ -160,8 +163,8 @@ } /* Don't trust `totalSfntSize' before thorough checks. */ - if ( FT_ALLOC( sfnt, 12 + woff.num_tables * 16UL ) || - FT_NEW( sfnt_stream ) ) + if ( FT_QALLOC( sfnt, 12 + woff.num_tables * 16UL ) || + FT_NEW( sfnt_stream ) ) goto Exit; sfnt_header = sfnt; @@ -198,9 +201,9 @@ FT_NEW_ARRAY( indices, woff.num_tables ) ) goto Exit; - FT_TRACE2(( "\n" - " tag offset compLen origLen checksum\n" - " -------------------------------------------\n" )); + FT_TRACE2(( "\n" )); + FT_TRACE2(( " tag offset compLen origLen checksum\n" )); + FT_TRACE2(( " -------------------------------------------\n" )); if ( FT_FRAME_ENTER( 20L * woff.num_tables ) ) goto Exit; @@ -360,8 +363,6 @@ } else { -#ifdef FT_CONFIG_OPTION_USE_ZLIB - /* Uncompress with zlib. */ FT_ULong output_len = table->OrigLength; @@ -377,13 +378,6 @@ error = FT_THROW( Invalid_Table ); goto Exit1; } - -#else /* !FT_CONFIG_OPTION_USE_ZLIB */ - - error = FT_THROW( Unimplemented_Feature ); - goto Exit1; - -#endif /* !FT_CONFIG_OPTION_USE_ZLIB */ } FT_FRAME_EXIT(); @@ -433,5 +427,12 @@ #undef WRITE_USHORT #undef WRITE_ULONG +#else /* !FT_CONFIG_OPTION_USE_ZLIB */ + + /* ANSI C doesn't like empty source files */ + typedef int _sfwoff_dummy; + +#endif /* !FT_CONFIG_OPTION_USE_ZLIB */ + /* END */ diff --git a/src/sfnt/sfwoff.h b/src/sfnt/sfwoff.h index d177ab116..3fbdac0fd 100644 --- a/src/sfnt/sfwoff.h +++ b/src/sfnt/sfwoff.h @@ -4,7 +4,7 @@ * * WOFFF format management (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -26,12 +26,15 @@ FT_BEGIN_HEADER +#ifdef FT_CONFIG_OPTION_USE_ZLIB FT_LOCAL( FT_Error ) woff_open_font( FT_Stream stream, TT_Face face ); +#endif + FT_END_HEADER #endif /* SFWOFF_H_ */ diff --git a/src/sfnt/sfwoff2.c b/src/sfnt/sfwoff2.c index 5c8202f82..5ee8dea28 100644 --- a/src/sfnt/sfwoff2.c +++ b/src/sfnt/sfwoff2.c @@ -4,7 +4,7 @@ * * WOFF2 format management (base). * - * Copyright (C) 2019-2020 by + * Copyright (C) 2019-2021 by * Nikhil Ramakrishnan, David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -26,8 +26,6 @@ #include <brotli/decode.h> -#endif - /************************************************************************** * @@ -101,15 +99,15 @@ } - FT_CALLBACK_DEF( int ) + FT_COMPARE_DEF( int ) compare_tags( const void* a, const void* b ) { WOFF2_Table table1 = *(WOFF2_Table*)a; WOFF2_Table table2 = *(WOFF2_Table*)b; - FT_ULong tag1 = table1->Tag; - FT_ULong tag2 = table2->Tag; + FT_Tag tag1 = table1->Tag; + FT_Tag tag2 = table2->Tag; if ( tag1 > tag2 ) @@ -316,8 +314,6 @@ const FT_Byte* src, FT_ULong src_size ) { -#ifdef FT_CONFIG_OPTION_USE_BROTLI - /* this cast is only of importance on 32bit systems; */ /* we don't validate it */ FT_Offset uncompressed_size = (FT_Offset)dst_size; @@ -338,20 +334,13 @@ FT_TRACE2(( "woff2_decompress: Brotli stream decompressed.\n" )); return FT_Err_Ok; - -#else /* !FT_CONFIG_OPTION_USE_BROTLI */ - - FT_ERROR(( "woff2_decompress: Brotli support not available.\n" )); - return FT_THROW( Unimplemented_Feature ); - -#endif /* !FT_CONFIG_OPTION_USE_BROTLI */ } static WOFF2_Table find_table( WOFF2_Table* tables, FT_UShort num_tables, - FT_ULong tag ) + FT_Tag tag ) { FT_Int i; @@ -790,7 +779,7 @@ goto Fail; loca_buf_size = loca_values_size * offset_size; - if ( FT_NEW_ARRAY( loca_buf, loca_buf_size ) ) + if ( FT_QNEW_ARRAY( loca_buf, loca_buf_size ) ) goto Fail; dst = loca_buf; @@ -1852,11 +1841,10 @@ FT_NEW_ARRAY( indices, woff2.num_tables ) ) goto Exit; - FT_TRACE2(( - "\n" - " tag flags transform origLen transformLen offset\n" - " -----------------------------------------------------------\n" )); - /* " XXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX" */ + FT_TRACE2(( "\n" )); + FT_TRACE2(( " tag flags transform origLen transformLen offset\n" )); + FT_TRACE2(( " -----------------------------------------------------------\n" )); + /* " XXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX" */ for ( nn = 0; nn < woff2.num_tables; nn++ ) { @@ -2119,8 +2107,8 @@ /* Create a temporary array. */ - if ( FT_NEW_ARRAY( temp_indices, - ttc_font->num_tables ) ) + if ( FT_QNEW_ARRAY( temp_indices, + ttc_font->num_tables ) ) goto Exit; FT_TRACE4(( "Storing tables for TTC face index %d.\n", face_index )); @@ -2128,9 +2116,9 @@ temp_indices[nn] = indices[ttc_font->table_indices[nn]]; /* Resize array to required size. */ - if ( FT_RENEW_ARRAY( indices, - woff2.num_tables, - ttc_font->num_tables ) ) + if ( FT_QRENEW_ARRAY( indices, + woff2.num_tables, + ttc_font->num_tables ) ) goto Exit; for ( nn = 0; nn < ttc_font->num_tables; nn++ ) @@ -2170,8 +2158,8 @@ } /* Write sfnt header. */ - if ( FT_ALLOC( sfnt, sfnt_size ) || - FT_NEW( sfnt_stream ) ) + if ( FT_QALLOC( sfnt, sfnt_size ) || + FT_NEW( sfnt_stream ) ) goto Exit; sfnt_header = sfnt; @@ -2209,6 +2197,25 @@ sizeof ( WOFF2_Table ), compare_tags ); + /* reject fonts that have multiple tables with the same tag */ + for ( nn = 1; nn < woff2.num_tables; nn++ ) + { + FT_Tag tag = indices[nn]->Tag; + + + if ( tag == indices[nn - 1]->Tag ) + { + FT_ERROR(( "woff2_open_font:" + " multiple tables with tag `%c%c%c%c'.\n", + (FT_Char)( tag >> 24 ), + (FT_Char)( tag >> 16 ), + (FT_Char)( tag >> 8 ), + (FT_Char)( tag ) )); + error = FT_THROW( Invalid_Table ); + goto Exit; + } + } + if ( woff2.uncompressed_size < 1 ) { error = FT_THROW( Invalid_Table ); @@ -2223,8 +2230,8 @@ } /* Allocate memory for uncompressed table data. */ - if ( FT_ALLOC( uncompressed_buf, woff2.uncompressed_size ) || - FT_FRAME_ENTER( woff2.totalCompressedSize ) ) + if ( FT_QALLOC( uncompressed_buf, woff2.uncompressed_size ) || + FT_FRAME_ENTER( woff2.totalCompressedSize ) ) goto Exit; /* Uncompress the stream. */ @@ -2333,5 +2340,12 @@ #undef BBOX_STREAM #undef INSTRUCTION_STREAM +#else /* !FT_CONFIG_OPTION_USE_BROTLI */ + + /* ANSI C doesn't like empty source files */ + typedef int _sfwoff2_dummy; + +#endif /* !FT_CONFIG_OPTION_USE_BROTLI */ + /* END */ diff --git a/src/sfnt/sfwoff2.h b/src/sfnt/sfwoff2.h index 798f66bd0..fa78b0242 100644 --- a/src/sfnt/sfwoff2.h +++ b/src/sfnt/sfwoff2.h @@ -4,7 +4,7 @@ * * WOFFF2 format management (specification). * - * Copyright (C) 2019-2020 by + * Copyright (C) 2019-2021 by * Nikhil Ramakrishnan, David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -26,6 +26,7 @@ FT_BEGIN_HEADER +#ifdef FT_CONFIG_OPTION_USE_BROTLI /* Leave the first byte open to store `flag_byte'. */ #define WOFF2_FLAGS_TRANSFORM 1 << 8 @@ -66,6 +67,7 @@ FT_BEGIN_HEADER FT_Int* face_index, FT_Long* num_faces ); +#endif /* FT_CONFIG_OPTION_USE_BROTLI */ FT_END_HEADER diff --git a/src/sfnt/ttbdf.c b/src/sfnt/ttbdf.c index a287d3afc..b8d9473a6 100644 --- a/src/sfnt/ttbdf.c +++ b/src/sfnt/ttbdf.c @@ -4,7 +4,7 @@ * * TrueType and OpenType embedded BDF properties (body). * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/sfnt/ttbdf.h b/src/sfnt/ttbdf.h index e60c01cb8..91271d916 100644 --- a/src/sfnt/ttbdf.h +++ b/src/sfnt/ttbdf.h @@ -4,7 +4,7 @@ * * TrueType and OpenType embedded BDF properties (specification). * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/sfnt/ttcmap.c b/src/sfnt/ttcmap.c index 556a71219..b369d8378 100644 --- a/src/sfnt/ttcmap.c +++ b/src/sfnt/ttcmap.c @@ -4,7 +4,7 @@ * * TrueType character mapping table (cmap) support (body). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -916,6 +916,16 @@ length = (FT_UInt)( valid->limit - table ); } + /* it also happens that the `length' field is too small; */ + /* this is easy to correct */ + if ( length < (FT_UInt)( valid->limit - table ) ) + { + if ( valid->level >= FT_VALIDATE_PARANOID ) + FT_INVALID_DATA; + + length = (FT_UInt)( valid->limit - table ); + } + if ( length < 16 ) FT_INVALID_TOO_SHORT; diff --git a/src/sfnt/ttcmap.h b/src/sfnt/ttcmap.h index c7d7c21d2..504fc951c 100644 --- a/src/sfnt/ttcmap.h +++ b/src/sfnt/ttcmap.h @@ -4,7 +4,7 @@ * * TrueType character mapping table (cmap) support (specification). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/sfnt/ttcmapc.h b/src/sfnt/ttcmapc.h index 2e4ce5075..4e6cd46ba 100644 --- a/src/sfnt/ttcmapc.h +++ b/src/sfnt/ttcmapc.h @@ -4,7 +4,7 @@ * * TT CMAP classes definitions (specification only). * - * Copyright (C) 2009-2020 by + * Copyright (C) 2009-2021 by * Oran Agra and Mickey Gabel. * * This file is part of the FreeType project, and may only be used, diff --git a/src/sfnt/ttcolr.c b/src/sfnt/ttcolr.c index 9025e356c..8f5cc8bcd 100644 --- a/src/sfnt/ttcolr.c +++ b/src/sfnt/ttcolr.c @@ -4,8 +4,8 @@ * * TrueType and OpenType colored glyph layer support (body). * - * Copyright (C) 2018-2020 by - * David Turner, Robert Wilhelm, and Werner Lemberg. + * Copyright (C) 2018-2021 by + * David Turner, Robert Wilhelm, Dominik Röttsches, and Werner Lemberg. * * Originally written by Shao Yu Zhang <shaozhang@fb.com>. * @@ -27,10 +27,12 @@ */ +#include <freetype/internal/ftcalc.h> #include <freetype/internal/ftdebug.h> #include <freetype/internal/ftstream.h> #include <freetype/tttags.h> #include <freetype/ftcolor.h> +#include <freetype/config/integer-types.h> #ifdef TT_CONFIG_OPTION_COLOR_LAYERS @@ -39,12 +41,27 @@ /* NOTE: These are the table sizes calculated through the specs. */ -#define BASE_GLYPH_SIZE 6U -#define LAYER_SIZE 4U -#define COLR_HEADER_SIZE 14U +#define BASE_GLYPH_SIZE 6U +#define BASE_GLYPH_PAINT_RECORD_SIZE 6U +#define LAYER_V1_LIST_PAINT_OFFSET_SIZE 4U +#define LAYER_V1_LIST_NUM_LAYERS_SIZE 4U +#define COLOR_STOP_SIZE 6U +#define LAYER_SIZE 4U +#define COLR_HEADER_SIZE 14U - typedef struct BaseGlyphRecord_ + typedef enum FT_PaintFormat_Internal_ + { + FT_COLR_PAINTFORMAT_INTERNAL_SCALE_CENTER = 18, + FT_COLR_PAINTFORMAT_INTERNAL_SCALE_UNIFORM = 20, + FT_COLR_PAINTFORMAT_INTERNAL_SCALE_UNIFORM_CENTER = 22, + FT_COLR_PAINTFORMAT_INTERNAL_ROTATE_CENTER = 26, + FT_COLR_PAINTFORMAT_INTERNAL_SKEW_CENTER = 30 + + } FT_PaintFormat_Internal; + + + typedef struct BaseGlyphRecord_ { FT_UShort gid; FT_UShort first_layer_index; @@ -53,7 +70,16 @@ } BaseGlyphRecord; - typedef struct Colr_ + typedef struct BaseGlyphV1Record_ + { + FT_UShort gid; + /* Offset from start of BaseGlyphV1List, i.e., from base_glyphs_v1. */ + FT_ULong paint_offset; + + } BaseGlyphV1Record; + + + typedef struct Colr_ { FT_UShort version; FT_UShort num_base_glyphs; @@ -62,7 +88,23 @@ FT_Byte* base_glyphs; FT_Byte* layers; - /* The memory which backs up the `COLR' table. */ + FT_ULong num_base_glyphs_v1; + /* Points at beginning of BaseGlyphV1List. */ + FT_Byte* base_glyphs_v1; + + FT_ULong num_layers_v1; + FT_Byte* layers_v1; + + FT_Byte* clip_list; + + /* + * Paint tables start at the minimum of the end of the LayerList and the + * end of the BaseGlyphList. Record this location in a field here for + * safety checks when accessing paint tables. + */ + FT_Byte* paints_start_v1; + + /* The memory that backs up the `COLR' table. */ void* table; FT_ULong table_size; @@ -88,10 +130,14 @@ FT_Byte* table = NULL; FT_Byte* p = NULL; + /* Needed for reading array lengths in referenced tables. */ + FT_Byte* p1 = NULL; Colr* colr = NULL; FT_ULong base_glyph_offset, layer_offset; + FT_ULong base_glyphs_offset_v1, num_base_glyphs_v1; + FT_ULong layer_offset_v1, num_layers_v1, clip_list_offset; FT_ULong table_size; @@ -115,7 +161,7 @@ goto NoColr; colr->version = FT_NEXT_USHORT( p ); - if ( colr->version != 0 ) + if ( colr->version != 0 && colr->version != 1 ) goto InvalidTable; colr->num_base_glyphs = FT_NEXT_USHORT( p ); @@ -135,6 +181,66 @@ if ( colr->num_layers * LAYER_SIZE > table_size - layer_offset ) goto InvalidTable; + if ( colr->version == 1 ) + { + base_glyphs_offset_v1 = FT_NEXT_ULONG( p ); + + if ( base_glyphs_offset_v1 >= table_size ) + goto InvalidTable; + + p1 = (FT_Byte*)( table + base_glyphs_offset_v1 ); + num_base_glyphs_v1 = FT_PEEK_ULONG( p1 ); + + if ( num_base_glyphs_v1 * BASE_GLYPH_PAINT_RECORD_SIZE > + table_size - base_glyphs_offset_v1 ) + goto InvalidTable; + + colr->num_base_glyphs_v1 = num_base_glyphs_v1; + colr->base_glyphs_v1 = p1; + + layer_offset_v1 = FT_NEXT_ULONG( p ); + + if ( layer_offset_v1 >= table_size ) + goto InvalidTable; + + if ( layer_offset_v1 ) + { + p1 = (FT_Byte*)( table + layer_offset_v1 ); + num_layers_v1 = FT_PEEK_ULONG( p1 ); + + if ( num_layers_v1 * LAYER_V1_LIST_PAINT_OFFSET_SIZE > + table_size - layer_offset_v1 ) + goto InvalidTable; + + colr->num_layers_v1 = num_layers_v1; + colr->layers_v1 = p1; + + colr->paints_start_v1 = + FT_MIN( colr->base_glyphs_v1 + + colr->num_base_glyphs_v1 * BASE_GLYPH_PAINT_RECORD_SIZE, + colr->layers_v1 + + colr->num_layers_v1 * LAYER_V1_LIST_PAINT_OFFSET_SIZE ); + } + else + { + colr->num_layers_v1 = 0; + colr->layers_v1 = 0; + colr->paints_start_v1 = + colr->base_glyphs_v1 + + colr->num_base_glyphs_v1 * BASE_GLYPH_PAINT_RECORD_SIZE; + } + + clip_list_offset = FT_NEXT_ULONG( p ); + + if ( clip_list_offset >= table_size ) + goto InvalidTable; + + if ( clip_list_offset ) + colr->clip_list = (FT_Byte*)( table + clip_list_offset ); + else + colr->clip_list = 0; + } + colr->base_glyphs = (FT_Byte*)( table + base_glyph_offset ); colr->layers = (FT_Byte*)( table + layer_offset ); colr->table = table; @@ -174,17 +280,17 @@ static FT_Bool find_base_glyph_record( FT_Byte* base_glyph_begin, - FT_Int num_base_glyph, + FT_UInt num_base_glyph, FT_UInt glyph_id, BaseGlyphRecord* record ) { - FT_Int min = 0; - FT_Int max = num_base_glyph - 1; + FT_UInt min = 0; + FT_UInt max = num_base_glyph; - while ( min <= max ) + while ( min < max ) { - FT_Int mid = min + ( max - min ) / 2; + FT_UInt mid = min + ( max - min ) / 2; FT_Byte* p = base_glyph_begin + mid * BASE_GLYPH_SIZE; FT_UShort gid = FT_NEXT_USHORT( p ); @@ -193,7 +299,7 @@ if ( gid < glyph_id ) min = mid + 1; else if (gid > glyph_id ) - max = mid - 1; + max = mid; else { record->gid = gid; @@ -265,6 +371,747 @@ } + static FT_Bool + read_color_line( FT_Byte* color_line_p, + FT_ColorLine *colorline ) + { + FT_Byte* p = color_line_p; + FT_PaintExtend paint_extend; + + + paint_extend = (FT_PaintExtend)FT_NEXT_BYTE( p ); + if ( paint_extend > FT_COLR_PAINT_EXTEND_REFLECT ) + return 0; + + colorline->extend = paint_extend; + + colorline->color_stop_iterator.num_color_stops = FT_NEXT_USHORT( p ); + colorline->color_stop_iterator.p = p; + colorline->color_stop_iterator.current_color_stop = 0; + + return 1; + } + + + /* + * Read a paint offset for `FT_Paint*` objects that have them and check + * whether it is within reasonable limits within the font and the COLR + * table. + * + * Return 1 on success, 0 on failure. + */ + static FT_Bool + get_child_table_pointer ( Colr* colr, + FT_Byte* paint_base, + FT_Byte** p, + FT_Byte** child_table_pointer ) + { + FT_UInt32 paint_offset; + FT_Byte* child_table_p; + + + if ( !child_table_pointer ) + return 0; + + paint_offset = FT_NEXT_UOFF3( *p ); + if ( !paint_offset ) + return 0; + + child_table_p = (FT_Byte*)( paint_base + paint_offset ); + + if ( child_table_p < colr->paints_start_v1 || + child_table_p >= ( (FT_Byte*)colr->table + colr->table_size ) ) + return 0; + + *child_table_pointer = child_table_p; + return 1; + } + + + static FT_Bool + read_paint( Colr* colr, + FT_Byte* p, + FT_COLR_Paint* apaint ) + { + FT_Byte* paint_base = p; + FT_Byte* child_table_p = NULL; + + + if ( !p || !colr || !colr->table ) + return 0; + + if ( p < colr->paints_start_v1 || + p >= ( (FT_Byte*)colr->table + colr->table_size ) ) + return 0; + + apaint->format = (FT_PaintFormat)FT_NEXT_BYTE( p ); + + if ( apaint->format >= FT_COLR_PAINT_FORMAT_MAX ) + return 0; + + if ( apaint->format == FT_COLR_PAINTFORMAT_COLR_LAYERS ) + { + /* Initialize layer iterator/ */ + FT_Byte num_layers; + FT_UInt32 first_layer_index; + + + num_layers = FT_NEXT_BYTE( p ); + if ( num_layers > colr->num_layers_v1 ) + return 0; + + first_layer_index = FT_NEXT_ULONG( p ); + if ( first_layer_index + num_layers > colr->num_layers_v1 ) + return 0; + + apaint->u.colr_layers.layer_iterator.num_layers = num_layers; + apaint->u.colr_layers.layer_iterator.layer = 0; + /* TODO: Check whether pointer is outside colr? */ + apaint->u.colr_layers.layer_iterator.p = + colr->layers_v1 + + LAYER_V1_LIST_NUM_LAYERS_SIZE + + LAYER_V1_LIST_PAINT_OFFSET_SIZE * first_layer_index; + + return 1; + } + + else if ( apaint->format == FT_COLR_PAINTFORMAT_SOLID ) + { + apaint->u.solid.color.palette_index = FT_NEXT_USHORT( p ); + apaint->u.solid.color.alpha = FT_NEXT_SHORT( p ); + + return 1; + } + + else if ( apaint->format == FT_COLR_PAINTFORMAT_COLR_GLYPH ) + { + apaint->u.colr_glyph.glyphID = FT_NEXT_USHORT( p ); + + return 1; + } + + /* + * Grouped below here are all paint formats that have an offset to a + * child paint table as the first entry (for example, a color line or a + * child paint table). Retrieve that and determine whether that paint + * offset is valid first. + */ + + if ( !get_child_table_pointer( colr, paint_base, &p, &child_table_p ) ) + return 0; + + if ( apaint->format == FT_COLR_PAINTFORMAT_LINEAR_GRADIENT ) + { + if ( !read_color_line( child_table_p, + &apaint->u.linear_gradient.colorline ) ) + return 0; + + /* + * In order to support variations expose these as FT_Fixed 16.16 values so + * that we can support fractional values after interpolation. + */ + apaint->u.linear_gradient.p0.x = INT_TO_FIXED( FT_NEXT_SHORT( p ) ); + apaint->u.linear_gradient.p0.y = INT_TO_FIXED( FT_NEXT_SHORT( p ) ); + apaint->u.linear_gradient.p1.x = INT_TO_FIXED( FT_NEXT_SHORT( p ) ); + apaint->u.linear_gradient.p1.y = INT_TO_FIXED( FT_NEXT_SHORT( p ) ); + apaint->u.linear_gradient.p2.x = INT_TO_FIXED( FT_NEXT_SHORT( p ) ); + apaint->u.linear_gradient.p2.y = INT_TO_FIXED( FT_NEXT_SHORT( p ) ); + + return 1; + } + + else if ( apaint->format == FT_COLR_PAINTFORMAT_RADIAL_GRADIENT ) + { + if ( !read_color_line( child_table_p, + &apaint->u.radial_gradient.colorline ) ) + return 0; + + apaint->u.radial_gradient.c0.x = INT_TO_FIXED( FT_NEXT_SHORT( p ) ); + apaint->u.radial_gradient.c0.y = INT_TO_FIXED( FT_NEXT_SHORT( p ) ); + + apaint->u.radial_gradient.r0 = FT_NEXT_USHORT( p ) << 16; + + apaint->u.radial_gradient.c1.x = INT_TO_FIXED( FT_NEXT_SHORT( p ) ); + apaint->u.radial_gradient.c1.y = INT_TO_FIXED( FT_NEXT_SHORT( p ) ); + + apaint->u.radial_gradient.r1 = FT_NEXT_USHORT( p ) << 16; + + return 1; + } + + else if ( apaint->format == FT_COLR_PAINTFORMAT_SWEEP_GRADIENT ) + { + if ( !read_color_line( child_table_p, + &apaint->u.sweep_gradient.colorline ) ) + return 0; + + apaint->u.sweep_gradient.center.x = + INT_TO_FIXED( FT_NEXT_SHORT( p ) ); + apaint->u.sweep_gradient.center.y = + INT_TO_FIXED( FT_NEXT_SHORT( p ) ); + + apaint->u.sweep_gradient.start_angle = + F2DOT14_TO_FIXED( FT_NEXT_SHORT( p ) ); + apaint->u.sweep_gradient.end_angle = + F2DOT14_TO_FIXED( FT_NEXT_SHORT( p ) ); + + return 1; + } + + if ( apaint->format == FT_COLR_PAINTFORMAT_GLYPH ) + { + apaint->u.glyph.paint.p = child_table_p; + apaint->u.glyph.paint.insert_root_transform = 0; + apaint->u.glyph.glyphID = FT_NEXT_USHORT( p ); + + return 1; + } + + else if ( apaint->format == FT_COLR_PAINTFORMAT_TRANSFORM ) + { + apaint->u.transform.paint.p = child_table_p; + apaint->u.transform.paint.insert_root_transform = 0; + + if ( !get_child_table_pointer( colr, paint_base, &p, &child_table_p ) ) + return 0; + + p = child_table_p; + + /* + * The following matrix coefficients are encoded as + * OpenType 16.16 fixed-point values. + */ + apaint->u.transform.affine.xx = FT_NEXT_LONG( p ); + apaint->u.transform.affine.yx = FT_NEXT_LONG( p ); + apaint->u.transform.affine.xy = FT_NEXT_LONG( p ); + apaint->u.transform.affine.yy = FT_NEXT_LONG( p ); + apaint->u.transform.affine.dx = FT_NEXT_LONG( p ); + apaint->u.transform.affine.dy = FT_NEXT_LONG( p ); + + return 1; + } + + else if ( apaint->format == FT_COLR_PAINTFORMAT_TRANSLATE ) + { + apaint->u.translate.paint.p = child_table_p; + apaint->u.translate.paint.insert_root_transform = 0; + + apaint->u.translate.dx = INT_TO_FIXED( FT_NEXT_SHORT( p ) ); + apaint->u.translate.dy = INT_TO_FIXED( FT_NEXT_SHORT( p ) ); + + return 1; + } + + else if ( apaint->format == + FT_COLR_PAINTFORMAT_SCALE || + (FT_PaintFormat_Internal)apaint->format == + FT_COLR_PAINTFORMAT_INTERNAL_SCALE_CENTER || + (FT_PaintFormat_Internal)apaint->format == + FT_COLR_PAINTFORMAT_INTERNAL_SCALE_UNIFORM || + (FT_PaintFormat_Internal)apaint->format == + FT_COLR_PAINTFORMAT_INTERNAL_SCALE_UNIFORM_CENTER ) + { + apaint->u.scale.paint.p = child_table_p; + apaint->u.scale.paint.insert_root_transform = 0; + + /* All scale paints get at least one scale value. */ + apaint->u.scale.scale_x = F2DOT14_TO_FIXED( FT_NEXT_SHORT( p ) ); + + /* Non-uniform ones read an extra y value. */ + if ( apaint->format == + FT_COLR_PAINTFORMAT_SCALE || + (FT_PaintFormat_Internal)apaint->format == + FT_COLR_PAINTFORMAT_INTERNAL_SCALE_CENTER ) + apaint->u.scale.scale_y = F2DOT14_TO_FIXED( FT_NEXT_SHORT( p ) ); + else + apaint->u.scale.scale_y = apaint->u.scale.scale_x; + + /* Scale paints that have a center read center coordinates, */ + /* otherwise the center is (0,0). */ + if ( (FT_PaintFormat_Internal)apaint->format == + FT_COLR_PAINTFORMAT_INTERNAL_SCALE_CENTER || + (FT_PaintFormat_Internal)apaint->format == + FT_COLR_PAINTFORMAT_INTERNAL_SCALE_UNIFORM_CENTER ) + { + apaint->u.scale.center_x = INT_TO_FIXED( FT_NEXT_SHORT ( p ) ); + apaint->u.scale.center_y = INT_TO_FIXED( FT_NEXT_SHORT ( p ) ); + } + else + { + apaint->u.scale.center_x = 0; + apaint->u.scale.center_y = 0; + } + + /* FT 'COLR' v1 API output format always returns fully defined */ + /* structs; we thus set the format to the public API value. */ + apaint->format = FT_COLR_PAINTFORMAT_SCALE; + + return 1; + } + + else if ( apaint->format == FT_COLR_PAINTFORMAT_ROTATE || + (FT_PaintFormat_Internal)apaint->format == + FT_COLR_PAINTFORMAT_INTERNAL_ROTATE_CENTER ) + { + apaint->u.rotate.paint.p = child_table_p; + apaint->u.rotate.paint.insert_root_transform = 0; + + apaint->u.rotate.angle = F2DOT14_TO_FIXED( FT_NEXT_SHORT( p ) ); + + if ( (FT_PaintFormat_Internal)apaint->format == + FT_COLR_PAINTFORMAT_INTERNAL_ROTATE_CENTER ) + { + apaint->u.rotate.center_x = INT_TO_FIXED( FT_NEXT_SHORT( p ) ); + apaint->u.rotate.center_y = INT_TO_FIXED( FT_NEXT_SHORT( p ) ); + } + else + { + apaint->u.rotate.center_x = 0; + apaint->u.rotate.center_y = 0; + } + + apaint->format = FT_COLR_PAINTFORMAT_ROTATE; + + return 1; + } + + else if ( apaint->format == FT_COLR_PAINTFORMAT_SKEW || + (FT_PaintFormat_Internal)apaint->format == + FT_COLR_PAINTFORMAT_INTERNAL_SKEW_CENTER ) + { + apaint->u.skew.paint.p = child_table_p; + apaint->u.skew.paint.insert_root_transform = 0; + + apaint->u.skew.x_skew_angle = F2DOT14_TO_FIXED( FT_NEXT_SHORT( p ) ); + apaint->u.skew.y_skew_angle = F2DOT14_TO_FIXED( FT_NEXT_SHORT( p ) ); + + if ( (FT_PaintFormat_Internal)apaint->format == + FT_COLR_PAINTFORMAT_INTERNAL_SKEW_CENTER ) + { + apaint->u.skew.center_x = INT_TO_FIXED( FT_NEXT_SHORT( p ) ); + apaint->u.skew.center_y = INT_TO_FIXED( FT_NEXT_SHORT( p ) ); + } + else + { + apaint->u.skew.center_x = 0; + apaint->u.skew.center_y = 0; + } + + apaint->format = FT_COLR_PAINTFORMAT_SKEW; + + return 1; + } + + else if ( apaint->format == FT_COLR_PAINTFORMAT_COMPOSITE ) + { + FT_UInt composite_mode; + + + apaint->u.composite.source_paint.p = child_table_p; + apaint->u.composite.source_paint.insert_root_transform = 0; + + composite_mode = FT_NEXT_BYTE( p ); + if ( composite_mode >= FT_COLR_COMPOSITE_MAX ) + return 0; + + apaint->u.composite.composite_mode = (FT_Composite_Mode)composite_mode; + + if ( !get_child_table_pointer( colr, paint_base, &p, &child_table_p ) ) + return 0; + + apaint->u.composite.backdrop_paint.p = + child_table_p; + apaint->u.composite.backdrop_paint.insert_root_transform = + 0; + + return 1; + } + + return 0; + } + + + static FT_Bool + find_base_glyph_v1_record( FT_Byte * base_glyph_begin, + FT_UInt num_base_glyph, + FT_UInt glyph_id, + BaseGlyphV1Record *record ) + { + FT_UInt min = 0; + FT_UInt max = num_base_glyph; + + + while ( min < max ) + { + FT_UInt mid = min + ( max - min ) / 2; + + /* + * `base_glyph_begin` is the beginning of `BaseGlyphV1List`; + * skip `numBaseGlyphV1Records` by adding 4 to start binary search + * in the array of `BaseGlyphV1Record`. + */ + FT_Byte *p = base_glyph_begin + 4 + mid * BASE_GLYPH_PAINT_RECORD_SIZE; + + FT_UShort gid = FT_NEXT_USHORT( p ); + + + if ( gid < glyph_id ) + min = mid + 1; + else if (gid > glyph_id ) + max = mid; + else + { + record->gid = gid; + record->paint_offset = FT_NEXT_ULONG ( p ); + return 1; + } + } + + return 0; + } + + + FT_LOCAL_DEF( FT_Bool ) + tt_face_get_colr_glyph_paint( TT_Face face, + FT_UInt base_glyph, + FT_Color_Root_Transform root_transform, + FT_OpaquePaint* opaque_paint ) + { + Colr* colr = (Colr*)face->colr; + BaseGlyphV1Record base_glyph_v1_record; + FT_Byte* p; + + if ( !colr || !colr->table ) + return 0; + + if ( colr->version < 1 || !colr->num_base_glyphs_v1 || + !colr->base_glyphs_v1 ) + return 0; + + if ( opaque_paint->p ) + return 0; + + if ( !find_base_glyph_v1_record( colr->base_glyphs_v1, + colr->num_base_glyphs_v1, + base_glyph, + &base_glyph_v1_record ) ) + return 0; + + if ( !base_glyph_v1_record.paint_offset || + base_glyph_v1_record.paint_offset > colr->table_size ) + return 0; + + p = (FT_Byte*)( colr->base_glyphs_v1 + + base_glyph_v1_record.paint_offset ); + if ( p >= ( (FT_Byte*)colr->table + colr->table_size ) ) + return 0; + + opaque_paint->p = p; + + if ( root_transform == FT_COLOR_INCLUDE_ROOT_TRANSFORM ) + opaque_paint->insert_root_transform = 1; + else + opaque_paint->insert_root_transform = 0; + + return 1; + } + + + FT_LOCAL_DEF( FT_Bool ) + tt_face_get_color_glyph_clipbox( TT_Face face, + FT_UInt base_glyph, + FT_ClipBox* clip_box ) + { + Colr* colr; + + FT_Byte *p, *p1, *clip_base; + + FT_Byte clip_list_format; + FT_ULong num_clip_boxes, i; + FT_UShort gid_start, gid_end; + FT_UInt32 clip_box_offset; + FT_Byte format; + + const FT_Byte num_corners = 4; + FT_Vector corners[4]; + FT_Byte j; + FT_BBox font_clip_box; + + + colr = (Colr*)face->colr; + if ( !colr ) + return 0; + + if ( !colr->clip_list ) + return 0; + + p = colr->clip_list; + + clip_base = p; + clip_list_format = FT_NEXT_BYTE ( p ); + + /* Format byte used here to be able to upgrade ClipList for >16bit */ + /* glyph ids; for now we can expect it to be 0. */ + if ( !( clip_list_format == 1 ) ) + return 0; + + num_clip_boxes = FT_NEXT_ULONG( p ); + + for ( i = 0; i < num_clip_boxes; ++i ) + { + gid_start = FT_NEXT_USHORT( p ); + gid_end = FT_NEXT_USHORT( p ); + clip_box_offset = FT_NEXT_UOFF3( p ); + + if ( base_glyph >= gid_start && base_glyph <= gid_end ) + { + p1 = (FT_Byte*)( clip_base + clip_box_offset ); + + if ( p1 >= ( (FT_Byte*)colr->table + colr->table_size ) ) + return 0; + + format = FT_NEXT_BYTE( p1 ); + + if ( format > 1 ) + return 0; + + /* `face->root.size->metrics.x_scale` and `y_scale` are factors */ + /* that scale a font unit value in integers to a 26.6 fixed value */ + /* according to the requested size, see for example */ + /* `ft_recompute_scaled_metrics`. */ + font_clip_box.xMin = FT_MulFix( FT_NEXT_SHORT( p1 ), + face->root.size->metrics.x_scale ); + font_clip_box.yMin = FT_MulFix( FT_NEXT_SHORT( p1 ), + face->root.size->metrics.x_scale ); + font_clip_box.xMax = FT_MulFix( FT_NEXT_SHORT( p1 ), + face->root.size->metrics.x_scale ); + font_clip_box.yMax = FT_MulFix( FT_NEXT_SHORT( p1 ), + face->root.size->metrics.x_scale ); + + /* Make 4 corner points (xMin, yMin), (xMax, yMax) and transform */ + /* them. If we we would only transform two corner points and */ + /* span a rectangle based on those, the rectangle may become too */ + /* small to cover the glyph. */ + corners[0].x = font_clip_box.xMin; + corners[1].x = font_clip_box.xMin; + corners[2].x = font_clip_box.xMax; + corners[3].x = font_clip_box.xMax; + + corners[0].y = font_clip_box.yMin; + corners[1].y = font_clip_box.yMax; + corners[2].y = font_clip_box.yMax; + corners[3].y = font_clip_box.yMin; + + for ( j = 0; j < num_corners; ++j ) + { + if ( face->root.internal->transform_flags & 1 ) + FT_Vector_Transform( &corners[j], + &face->root.internal->transform_matrix ); + + if ( face->root.internal->transform_flags & 2 ) + { + corners[j].x += face->root.internal->transform_delta.x; + corners[j].y += face->root.internal->transform_delta.y; + } + } + + clip_box->bottom_left = corners[0]; + clip_box->top_left = corners[1]; + clip_box->top_right = corners[2]; + clip_box->bottom_right = corners[3]; + + return 1; + } + } + + return 0; + } + + + FT_LOCAL_DEF( FT_Bool ) + tt_face_get_paint_layers( TT_Face face, + FT_LayerIterator* iterator, + FT_OpaquePaint* opaque_paint ) + { + FT_Byte* p = NULL; + FT_Byte* p_first_layer = NULL; + FT_Byte* p_paint = NULL; + FT_UInt32 paint_offset; + + Colr* colr; + + + if ( iterator->layer == iterator->num_layers ) + return 0; + + colr = (Colr*)face->colr; + if ( !colr ) + return 0; + + /* + * We have an iterator pointing at a paint offset as part of the + * `paintOffset` array in `LayerV1List`. + */ + p = iterator->p; + + /* + * First ensure that p is within COLRv1. + */ + if ( p < colr->layers_v1 || + p >= ( (FT_Byte*)colr->table + colr->table_size ) ) + return 0; + + /* + * Do a cursor sanity check of the iterator. Counting backwards from + * where it stands, we need to end up at a position after the beginning + * of the `LayerV1List` table and not after the end of the + * `LayerV1List`. + */ + p_first_layer = p - + iterator->layer * LAYER_V1_LIST_PAINT_OFFSET_SIZE - + LAYER_V1_LIST_NUM_LAYERS_SIZE; + if ( p_first_layer < (FT_Byte*)colr->layers_v1 ) + return 0; + if ( p_first_layer >= (FT_Byte*)( + colr->layers_v1 + LAYER_V1_LIST_NUM_LAYERS_SIZE + + colr->num_layers_v1 * LAYER_V1_LIST_PAINT_OFFSET_SIZE ) ) + return 0; + + paint_offset = + FT_NEXT_ULONG( p ); + opaque_paint->insert_root_transform = + 0; + + p_paint = (FT_Byte*)( colr->layers_v1 + paint_offset ); + + if ( p_paint < colr->paints_start_v1 || + p_paint >= ( (FT_Byte*)colr->table + colr->table_size ) ) + return 0; + + opaque_paint->p = p_paint; + + iterator->p = p; + + iterator->layer++; + + return 1; + } + + + FT_LOCAL_DEF( FT_Bool ) + tt_face_get_colorline_stops( TT_Face face, + FT_ColorStop* color_stop, + FT_ColorStopIterator *iterator ) + { + Colr* colr = (Colr*)face->colr; + + FT_Byte* p; + + + if ( !colr || !colr->table ) + return 0; + + if ( iterator->current_color_stop >= iterator->num_color_stops ) + return 0; + + if ( iterator->p + + ( ( iterator->num_color_stops - iterator->current_color_stop ) * + COLOR_STOP_SIZE ) > + ( (FT_Byte *)colr->table + colr->table_size ) ) + return 0; + + /* Iterator points at first `ColorStop` of `ColorLine`. */ + p = iterator->p; + + color_stop->stop_offset = FT_NEXT_SHORT( p ); + + color_stop->color.palette_index = FT_NEXT_USHORT( p ); + + color_stop->color.alpha = FT_NEXT_SHORT( p ); + + iterator->p = p; + iterator->current_color_stop++; + + return 1; + } + + + FT_LOCAL_DEF( FT_Bool ) + tt_face_get_paint( TT_Face face, + FT_OpaquePaint opaque_paint, + FT_COLR_Paint* paint ) + { + Colr* colr = (Colr*)face->colr; + FT_OpaquePaint next_paint; + FT_Matrix ft_root_scale; + + if ( !colr || !colr->base_glyphs_v1 || !colr->table ) + return 0; + + if ( opaque_paint.insert_root_transform ) + { + /* 'COLR' v1 glyph information is returned in unscaled coordinates, + * i.e., `FT_Size` is not applied or multiplied into the values. When + * client applications draw color glyphs, they can request to include + * a top-level transform, which includes the active `x_scale` and + * `y_scale` information for scaling the glyph, as well the additional + * transform and translate configured through `FT_Set_Transform`. + * This allows client applications to apply this top-level transform + * to the graphics context first and only once, then have gradient and + * contour scaling applied correctly when performing the additional + * drawing operations for subsequenct paints. Prepare this initial + * transform here. + */ + paint->format = FT_COLR_PAINTFORMAT_TRANSFORM; + + next_paint.p = opaque_paint.p; + next_paint.insert_root_transform = 0; + paint->u.transform.paint = next_paint; + + /* `x_scale` and `y_scale` are in 26.6 format, representing the scale + * factor to get from font units to requested size. However, expected + * return values are in 16.16, so we shift accordingly with rounding. + */ + ft_root_scale.xx = ( face->root.size->metrics.x_scale + 32 ) >> 6; + ft_root_scale.xy = 0; + ft_root_scale.yx = 0; + ft_root_scale.yy = ( face->root.size->metrics.y_scale + 32 ) >> 6; + + if ( face->root.internal->transform_flags & 1 ) + FT_Matrix_Multiply( &face->root.internal->transform_matrix, + &ft_root_scale ); + + paint->u.transform.affine.xx = ft_root_scale.xx; + paint->u.transform.affine.xy = ft_root_scale.xy; + paint->u.transform.affine.yx = ft_root_scale.yx; + paint->u.transform.affine.yy = ft_root_scale.yy; + + /* The translation is specified in 26.6 format and, according to the + * documentation of `FT_Set_Translate`, is performed on the character + * size given in the last call to `FT_Set_Char_Size`. The + * 'PaintTransform' paint table's `FT_Affine23` format expects + * values in 16.16 format, thus we need to shift by 10 bits. + */ + if ( face->root.internal->transform_flags & 2 ) + { + paint->u.transform.affine.dx = + face->root.internal->transform_delta.x * ( 1 << 10 ); + paint->u.transform.affine.dy = + face->root.internal->transform_delta.y * ( 1 << 10 ); + } + else + { + paint->u.transform.affine.dx = 0; + paint->u.transform.affine.dy = 0; + } + + return 1; + } + + return read_paint( colr, opaque_paint.p, paint ); + } + + FT_LOCAL_DEF( FT_Error ) tt_face_colr_blend_layer( TT_Face face, FT_UInt color_index, diff --git a/src/sfnt/ttcolr.h b/src/sfnt/ttcolr.h index 641216266..b81e4cb95 100644 --- a/src/sfnt/ttcolr.h +++ b/src/sfnt/ttcolr.h @@ -4,7 +4,7 @@ * * TrueType and OpenType colored glyph layer support (specification). * - * Copyright (C) 2018-2020 by + * Copyright (C) 2018-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * Originally written by Shao Yu Zhang <shaozhang@fb.com>. @@ -42,6 +42,32 @@ FT_BEGIN_HEADER FT_UInt *acolor_index, FT_LayerIterator* iterator ); + FT_LOCAL( FT_Bool ) + tt_face_get_colr_glyph_paint( TT_Face face, + FT_UInt base_glyph, + FT_Color_Root_Transform root_transform, + FT_OpaquePaint* paint ); + + FT_LOCAL( FT_Bool ) + tt_face_get_color_glyph_clipbox( TT_Face face, + FT_UInt base_glyph, + FT_ClipBox* clip_box ); + + FT_LOCAL( FT_Bool ) + tt_face_get_paint_layers( TT_Face face, + FT_LayerIterator* iterator, + FT_OpaquePaint* paint ); + + FT_LOCAL( FT_Bool ) + tt_face_get_colorline_stops( TT_Face face, + FT_ColorStop* color_stop, + FT_ColorStopIterator* iterator ); + + FT_LOCAL( FT_Bool ) + tt_face_get_paint( TT_Face face, + FT_OpaquePaint opaque_paint, + FT_COLR_Paint* paint ); + FT_LOCAL( FT_Error ) tt_face_colr_blend_layer( TT_Face face, FT_UInt color_index, diff --git a/src/sfnt/ttcpal.c b/src/sfnt/ttcpal.c index 9c514bafe..a0d84bca3 100644 --- a/src/sfnt/ttcpal.c +++ b/src/sfnt/ttcpal.c @@ -4,7 +4,7 @@ * * TrueType and OpenType color palette support (body). * - * Copyright (C) 2018-2020 by + * Copyright (C) 2018-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * Originally written by Shao Yu Zhang <shaozhang@fb.com>. diff --git a/src/sfnt/ttcpal.h b/src/sfnt/ttcpal.h index b544be696..1c5586855 100644 --- a/src/sfnt/ttcpal.h +++ b/src/sfnt/ttcpal.h @@ -4,7 +4,7 @@ * * TrueType and OpenType color palette support (specification). * - * Copyright (C) 2018-2020 by + * Copyright (C) 2018-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * Originally written by Shao Yu Zhang <shaozhang@fb.com>. diff --git a/src/sfnt/ttkern.c b/src/sfnt/ttkern.c index d4a70c785..bb1922caf 100644 --- a/src/sfnt/ttkern.c +++ b/src/sfnt/ttkern.c @@ -5,7 +5,7 @@ * Load the basic TrueType kerning table. This doesn't handle * kerning data within the GPOS table at the moment. * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/sfnt/ttkern.h b/src/sfnt/ttkern.h index f44b5bdeb..3d8f1e834 100644 --- a/src/sfnt/ttkern.h +++ b/src/sfnt/ttkern.h @@ -5,7 +5,7 @@ * Load the basic TrueType kerning table. This doesn't handle * kerning data within the GPOS table at the moment. * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/sfnt/ttload.c b/src/sfnt/ttload.c index 4b46f4135..51416d80b 100644 --- a/src/sfnt/ttload.c +++ b/src/sfnt/ttload.c @@ -5,7 +5,7 @@ * Load the basic TrueType tables, i.e., tables that can be either in * TTF or OTF fonts (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -416,9 +416,9 @@ FT_FRAME_ENTER( sfnt.num_tables * 16L ) ) goto Exit; - FT_TRACE2(( "\n" - " tag offset length checksum\n" - " ----------------------------------\n" )); + FT_TRACE2(( "\n" )); + FT_TRACE2(( " tag offset length checksum\n" )); + FT_TRACE2(( " ----------------------------------\n" )); valid_entries = 0; for ( nn = 0; nn < sfnt.num_tables; nn++ ) @@ -505,7 +505,8 @@ FT_FRAME_EXIT(); - FT_TRACE2(( "table directory loaded\n\n" )); + FT_TRACE2(( "table directory loaded\n" )); + FT_TRACE2(( "\n" )); Exit: return error; @@ -794,8 +795,8 @@ if ( maxProfile->maxTwilightPoints > ( 0xFFFFU - 4 ) ) { FT_TRACE0(( "tt_face_load_maxp:" - " too much twilight points in `maxp' table;\n" - " " + " too much twilight points in `maxp' table;\n" )); + FT_TRACE0(( " " " some glyphs might be rendered incorrectly\n" )); maxProfile->maxTwilightPoints = 0xFFFFU - 4; @@ -836,6 +837,8 @@ FT_ULong table_pos, table_len; FT_ULong storage_start, storage_limit; TT_NameTable table; + TT_Name names = NULL; + TT_LangTag langTags = NULL; static const FT_Frame_Field name_table_fields[] = { @@ -916,13 +919,13 @@ storage_start += 2 + 4 * table->numLangTagRecords; /* allocate language tag records array */ - if ( FT_NEW_ARRAY( table->langTags, table->numLangTagRecords ) || - FT_FRAME_ENTER( table->numLangTagRecords * 4 ) ) + if ( FT_QNEW_ARRAY( langTags, table->numLangTagRecords ) || + FT_FRAME_ENTER( table->numLangTagRecords * 4 ) ) goto Exit; /* load language tags */ { - TT_LangTag entry = table->langTags; + TT_LangTag entry = langTags; TT_LangTag limit = FT_OFFSET( entry, table->numLangTagRecords ); @@ -938,7 +941,13 @@ /* invalid entry; ignore it */ entry->stringLength = 0; } + + /* mark the string as not yet loaded */ + entry->string = NULL; } + + table->langTags = langTags; + langTags = NULL; } FT_FRAME_EXIT(); @@ -947,14 +956,15 @@ } /* allocate name records array */ - if ( FT_NEW_ARRAY( table->names, table->numNameRecords ) || - FT_FRAME_ENTER( table->numNameRecords * 12 ) ) + if ( FT_QNEW_ARRAY( names, table->numNameRecords ) || + FT_FRAME_ENTER( table->numNameRecords * 12 ) ) goto Exit; /* load name records */ { - TT_Name entry = table->names; + TT_Name entry = names; FT_UInt count = table->numNameRecords; + FT_UInt valid = 0; for ( ; count > 0; count-- ) @@ -987,15 +997,20 @@ } } + /* mark the string as not yet converted */ + entry->string = NULL; + + valid++; entry++; } /* reduce array size to the actually used elements */ - count = (FT_UInt)( entry - table->names ); - (void)FT_RENEW_ARRAY( table->names, - table->numNameRecords, - count ); - table->numNameRecords = count; + FT_MEM_QRENEW_ARRAY( names, + table->numNameRecords, + valid ); + table->names = names; + names = NULL; + table->numNameRecords = valid; } FT_FRAME_EXIT(); @@ -1004,6 +1019,8 @@ face->num_names = (FT_UShort)table->numNameRecords; Exit: + FT_FREE( names ); + FT_FREE( langTags ); return error; } @@ -1311,6 +1328,12 @@ if ( FT_STREAM_READ_FIELDS( post_fields, post ) ) return error; + if ( post->FormatType != 0x00030000L && + post->FormatType != 0x00025000L && + post->FormatType != 0x00020000L && + post->FormatType != 0x00010000L ) + return FT_THROW( Invalid_Post_Table_Format ); + /* we don't load the glyph names, we do that in another */ /* module (ttpost). */ @@ -1410,8 +1433,8 @@ FT_Error error; FT_Memory memory = stream->memory; - FT_UInt j,num_ranges; - TT_GaspRange gaspranges = NULL; + FT_UShort j, num_ranges; + TT_GaspRange gasp_ranges = NULL; /* the gasp table is optional */ @@ -1422,8 +1445,8 @@ if ( FT_FRAME_ENTER( 4L ) ) goto Exit; - face->gasp.version = FT_GET_USHORT(); - face->gasp.numRanges = FT_GET_USHORT(); + face->gasp.version = FT_GET_USHORT(); + num_ranges = FT_GET_USHORT(); FT_FRAME_EXIT(); @@ -1435,29 +1458,31 @@ goto Exit; } - num_ranges = face->gasp.numRanges; - FT_TRACE3(( "numRanges: %u\n", num_ranges )); + FT_TRACE3(( "numRanges: %hu\n", num_ranges )); - if ( FT_QNEW_ARRAY( face->gasp.gaspRanges, num_ranges ) || - FT_FRAME_ENTER( num_ranges * 4L ) ) + if ( FT_QNEW_ARRAY( gasp_ranges, num_ranges ) || + FT_FRAME_ENTER( num_ranges * 4L ) ) goto Exit; - gaspranges = face->gasp.gaspRanges; - for ( j = 0; j < num_ranges; j++ ) { - gaspranges[j].maxPPEM = FT_GET_USHORT(); - gaspranges[j].gaspFlag = FT_GET_USHORT(); + gasp_ranges[j].maxPPEM = FT_GET_USHORT(); + gasp_ranges[j].gaspFlag = FT_GET_USHORT(); FT_TRACE3(( "gaspRange %d: rangeMaxPPEM %5d, rangeGaspBehavior 0x%x\n", j, - gaspranges[j].maxPPEM, - gaspranges[j].gaspFlag )); + gasp_ranges[j].maxPPEM, + gasp_ranges[j].gaspFlag )); } + face->gasp.gaspRanges = gasp_ranges; + gasp_ranges = NULL; + face->gasp.numRanges = num_ranges; + FT_FRAME_EXIT(); Exit: + FT_FREE( gasp_ranges ); return error; } diff --git a/src/sfnt/ttload.h b/src/sfnt/ttload.h index 4e53d8b78..cab15cd23 100644 --- a/src/sfnt/ttload.h +++ b/src/sfnt/ttload.h @@ -5,7 +5,7 @@ * Load the basic TrueType tables, i.e., tables that can be either in * TTF or OTF fonts (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/sfnt/ttmtx.c b/src/sfnt/ttmtx.c index 021123336..7aece36fb 100644 --- a/src/sfnt/ttmtx.c +++ b/src/sfnt/ttmtx.c @@ -4,7 +4,7 @@ * * Load the metrics tables common to TTF and OTF fonts (body). * - * Copyright (C) 2006-2020 by + * Copyright (C) 2006-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/sfnt/ttmtx.h b/src/sfnt/ttmtx.h index dba65ca9b..270170d47 100644 --- a/src/sfnt/ttmtx.h +++ b/src/sfnt/ttmtx.h @@ -4,7 +4,7 @@ * * Load the metrics tables common to TTF and OTF fonts (specification). * - * Copyright (C) 2006-2020 by + * Copyright (C) 2006-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/sfnt/ttpost.c b/src/sfnt/ttpost.c index e93a4bf1b..b92ca5db1 100644 --- a/src/sfnt/ttpost.c +++ b/src/sfnt/ttpost.c @@ -5,7 +5,7 @@ * PostScript name table processing for TrueType and OpenType fonts * (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -158,7 +158,7 @@ static FT_Error load_format_20( TT_Face face, FT_Stream stream, - FT_ULong post_limit ) + FT_ULong post_len ) { FT_Memory memory = stream->memory; FT_Error error; @@ -168,6 +168,7 @@ FT_UShort* glyph_indices = NULL; FT_Char** name_strings = NULL; + FT_Byte* strings = NULL; if ( FT_READ_USHORT( num_glyphs ) ) @@ -179,7 +180,8 @@ /* There already exist fonts which have more than 32768 glyph names */ /* in this table, so the test for this threshold has been dropped. */ - if ( num_glyphs > face->max_profile.numGlyphs ) + if ( num_glyphs > face->max_profile.numGlyphs || + (FT_ULong)num_glyphs * 2UL > post_len - 2 ) { error = FT_THROW( Invalid_File_Format ); goto Exit; @@ -190,7 +192,7 @@ FT_Int n; - if ( FT_NEW_ARRAY ( glyph_indices, num_glyphs ) || + if ( FT_QNEW_ARRAY( glyph_indices, num_glyphs ) || FT_FRAME_ENTER( num_glyphs * 2L ) ) goto Fail; @@ -223,60 +225,56 @@ } /* now load the name strings */ + if ( num_names ) { FT_UShort n; + FT_ULong p; - if ( FT_NEW_ARRAY( name_strings, num_names ) ) + post_len -= (FT_ULong)num_glyphs * 2UL + 2; + + if ( FT_QALLOC( strings, post_len + 1 ) || + FT_STREAM_READ( strings, post_len ) || + FT_QNEW_ARRAY( name_strings, num_names ) ) goto Fail; - for ( n = 0; n < num_names; n++ ) + /* convert from Pascal- to C-strings and set pointers */ + for ( p = 0, n = 0; p < post_len && n < num_names; n++ ) { - FT_UInt len; + FT_UInt len = strings[p]; - if ( FT_STREAM_POS() >= post_limit ) - break; - else + if ( len > 63U ) { - FT_TRACE6(( "load_format_20: %ld byte left in post table\n", - post_limit - FT_STREAM_POS() )); - - if ( FT_READ_BYTE( len ) ) - goto Fail1; - } - - if ( len > post_limit || - FT_STREAM_POS() > post_limit - len ) - { - FT_Int d = (FT_Int)post_limit - (FT_Int)FT_STREAM_POS(); - - - FT_ERROR(( "load_format_20:" - " exceeding string length (%d)," - " truncating at end of post table (%d byte left)\n", - len, d )); - len = (FT_UInt)FT_MAX( 0, d ); + error = FT_THROW( Invalid_File_Format ); + goto Fail; } - if ( FT_NEW_ARRAY( name_strings[n], len + 1 ) || - FT_STREAM_READ( name_strings[n], len ) ) - goto Fail1; - - name_strings[n][len] = '\0'; + strings[p] = 0; + name_strings[n] = (FT_Char*)strings + p + 1; + p += len + 1; } + strings[post_len] = 0; + /* deal with missing or insufficient string data */ if ( n < num_names ) { + if ( post_len == 0 ) + { + /* fake empty string */ + if ( FT_QREALLOC( strings, 1, 2 ) ) + goto Fail; + + post_len = 1; + strings[post_len] = 0; + } + FT_ERROR(( "load_format_20:" " all entries in post table are already parsed," " using NULL names for gid %d - %d\n", n, num_names - 1 )); for ( ; n < num_names; n++ ) - if ( FT_NEW_ARRAY( name_strings[n], 1 ) ) - goto Fail1; - else - name_strings[n][0] = '\0'; + name_strings[n] = (FT_Char*)strings + post_len; } } @@ -292,17 +290,9 @@ } return FT_Err_Ok; - Fail1: - { - FT_UShort n; - - - for ( n = 0; n < num_names; n++ ) - FT_FREE( name_strings[n] ); - } - Fail: FT_FREE( name_strings ); + FT_FREE( strings ); FT_FREE( glyph_indices ); Exit: @@ -313,7 +303,7 @@ static FT_Error load_format_25( TT_Face face, FT_Stream stream, - FT_ULong post_limit ) + FT_ULong post_len ) { FT_Memory memory = stream->memory; FT_Error error; @@ -321,7 +311,7 @@ FT_Int num_glyphs; FT_Char* offset_table = NULL; - FT_UNUSED( post_limit ); + FT_UNUSED( post_len ); if ( FT_READ_USHORT( num_glyphs ) ) @@ -336,7 +326,7 @@ goto Exit; } - if ( FT_NEW_ARRAY( offset_table, num_glyphs ) || + if ( FT_QNEW_ARRAY( offset_table, num_glyphs ) || FT_STREAM_READ( offset_table, num_glyphs ) ) goto Fail; @@ -384,7 +374,6 @@ FT_Error error; FT_Fixed format; FT_ULong post_len; - FT_ULong post_limit; /* get a stream for the face's resource */ @@ -395,8 +384,6 @@ if ( error ) goto Exit; - post_limit = FT_STREAM_POS() + post_len; - format = face->postscript.FormatType; /* go to beginning of subtable */ @@ -404,10 +391,10 @@ goto Exit; /* now read postscript table */ - if ( format == 0x00020000L ) - error = load_format_20( face, stream, post_limit ); - else if ( format == 0x00025000L ) - error = load_format_25( face, stream, post_limit ); + if ( format == 0x00020000L && post_len >= 34 ) + error = load_format_20( face, stream, post_len - 32 ); + else if ( format == 0x00025000L && post_len >= 34 ) + error = load_format_25( face, stream, post_len - 32 ); else error = FT_THROW( Invalid_File_Format ); @@ -433,17 +420,19 @@ if ( format == 0x00020000L ) { TT_Post_20 table = &names->names.format_20; - FT_UShort n; FT_FREE( table->glyph_indices ); table->num_glyphs = 0; - for ( n = 0; n < table->num_names; n++ ) - FT_FREE( table->glyph_names[n] ); + if ( table->num_names ) + { + table->glyph_names[0]--; + FT_FREE( table->glyph_names[0] ); - FT_FREE( table->glyph_names ); - table->num_names = 0; + FT_FREE( table->glyph_names ); + table->num_names = 0; + } } else if ( format == 0x00025000L ) { diff --git a/src/sfnt/ttpost.h b/src/sfnt/ttpost.h index 94c7d1680..6d65b5766 100644 --- a/src/sfnt/ttpost.h +++ b/src/sfnt/ttpost.h @@ -5,7 +5,7 @@ * PostScript name table processing for TrueType and OpenType fonts * (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/sfnt/ttsbit.c b/src/sfnt/ttsbit.c index 9dd441971..e9ba697db 100644 --- a/src/sfnt/ttsbit.c +++ b/src/sfnt/ttsbit.c @@ -4,7 +4,7 @@ * * TrueType and OpenType embedded bitmap support (body). * - * Copyright (C) 2005-2020 by + * Copyright (C) 2005-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * Copyright 2013 by Google, Inc. @@ -172,13 +172,17 @@ goto Exit; } +#ifdef FT_DEBUG_LEVEL_TRACE /* we currently don't support bit 1; however, it is better to */ /* draw at least something... */ if ( flags == 3 ) + { FT_TRACE1(( "tt_face_load_sbit_strikes:" - " sbix overlay not supported yet\n" - " " + " sbix overlay not supported yet\n" )); + FT_TRACE1(( " " " expect bad rendering results\n" )); + } +#endif /* * Count the number of strikes available in the table. We are a bit @@ -240,8 +244,8 @@ if ( !face->ebdt_size ) { FT_TRACE2(( "tt_face_load_sbit_strikes:" - " no embedded bitmap data table found;\n" - " " + " no embedded bitmap data table found;\n" )); + FT_TRACE2(( " " " resetting number of strikes to zero\n" )); face->sbit_num_strikes = 0; } @@ -345,8 +349,8 @@ if ( metrics->ascender == 0 ) { FT_TRACE2(( "tt_face_load_strike_metrics:" - " sanitizing invalid ascender and descender\n" - " " + " sanitizing invalid ascender and descender\n" )); + FT_TRACE2(( " " " values for strike %ld (%dppem, %dppem)\n", strike_index, metrics->x_ppem, metrics->y_ppem )); @@ -374,8 +378,8 @@ if ( metrics->height == 0 ) { FT_TRACE2(( "tt_face_load_strike_metrics:" - " sanitizing invalid height value\n" - " " + " sanitizing invalid height value\n" )); + FT_TRACE2(( " " " for strike (%d, %d)\n", metrics->x_ppem, metrics->y_ppem )); metrics->height = metrics->y_ppem * 64; diff --git a/src/sfnt/ttsbit.h b/src/sfnt/ttsbit.h index b867e43a6..7a0ed92e9 100644 --- a/src/sfnt/ttsbit.h +++ b/src/sfnt/ttsbit.h @@ -4,7 +4,7 @@ * * TrueType and OpenType embedded bitmap support (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/sfnt/woff2tags.c b/src/sfnt/woff2tags.c index fd9f2e6c5..fe8f5cf76 100644 --- a/src/sfnt/woff2tags.c +++ b/src/sfnt/woff2tags.c @@ -4,7 +4,7 @@ * * WOFF2 Font table tags (base). * - * Copyright (C) 2019-2020 by + * Copyright (C) 2019-2021 by * Nikhil Ramakrishnan, David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -17,6 +17,9 @@ #include <freetype/tttags.h> + +#ifdef FT_CONFIG_OPTION_USE_BROTLI + #include "woff2tags.h" /* @@ -28,10 +31,10 @@ * * for details. */ - FT_LOCAL_DEF( FT_ULong ) + FT_LOCAL_DEF( FT_Tag ) woff2_known_tags( FT_Byte index ) { - const FT_ULong known_tags[63] = + static const FT_Tag known_tags[63] = { FT_MAKE_TAG('c', 'm', 'a', 'p'), /* 0 */ FT_MAKE_TAG('h', 'e', 'a', 'd'), /* 1 */ @@ -105,5 +108,12 @@ return known_tags[index]; } +#else /* !FT_CONFIG_OPTION_USE_BROTLI */ + + /* ANSI C doesn't like empty source files */ + typedef int _woff2tags_dummy; + +#endif /* !FT_CONFIG_OPTION_USE_BROTLI */ + /* END */ diff --git a/src/sfnt/woff2tags.h b/src/sfnt/woff2tags.h index c437c77aa..4ef0a651c 100644 --- a/src/sfnt/woff2tags.h +++ b/src/sfnt/woff2tags.h @@ -2,9 +2,9 @@ * * woff2tags.h * - * WOFFF2 Font table tags (specification). + * WOFF2 Font table tags (specification). * - * Copyright (C) 2019-2020 by + * Copyright (C) 2019-2021 by * Nikhil Ramakrishnan, David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -26,10 +26,12 @@ FT_BEGIN_HEADER +#ifdef FT_CONFIG_OPTION_USE_BROTLI - FT_LOCAL( FT_ULong ) + FT_LOCAL( FT_Tag ) woff2_known_tags( FT_Byte index ); +#endif FT_END_HEADER diff --git a/src/smooth/ftgrays.c b/src/smooth/ftgrays.c index 681900fd4..d982c2820 100644 --- a/src/smooth/ftgrays.c +++ b/src/smooth/ftgrays.c @@ -4,7 +4,7 @@ * * A new `perfect' anti-aliasing renderer (body). * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -149,14 +149,10 @@ #define FT_INT_MAX INT_MAX #define FT_ULONG_MAX ULONG_MAX -#define ADD_LONG( a, b ) \ - (long)( (unsigned long)(a) + (unsigned long)(b) ) -#define SUB_LONG( a, b ) \ - (long)( (unsigned long)(a) - (unsigned long)(b) ) -#define MUL_LONG( a, b ) \ - (long)( (unsigned long)(a) * (unsigned long)(b) ) -#define NEG_LONG( a ) \ - (long)( -(unsigned long)(a) ) +#define ADD_INT( a, b ) \ + (int)( (unsigned int)(a) + (unsigned int)(b) ) + +#define FT_STATIC_BYTE_CAST( type, var ) (type)(unsigned char)(var) #define ft_memset memset @@ -168,10 +164,11 @@ typedef ptrdiff_t FT_PtrDist; -#define ErrRaster_Invalid_Mode -2 -#define ErrRaster_Invalid_Outline -1 -#define ErrRaster_Invalid_Argument -3 -#define ErrRaster_Memory_Overflow -4 +#define Smooth_Err_Ok 0 +#define Smooth_Err_Invalid_Outline -1 +#define Smooth_Err_Cannot_Render_Glyph -2 +#define Smooth_Err_Invalid_Argument -3 +#define Smooth_Err_Raster_Overflow -4 #define FT_BEGIN_HEADER #define FT_END_HEADER @@ -229,23 +226,26 @@ typedef ptrdiff_t FT_PtrDist; #define FT_ERROR( varformat ) FT_Message varformat #endif -#define FT_THROW( e ) \ - ( FT_Throw( FT_ERR_CAT( ErrRaster_, e ), \ - __LINE__, \ - __FILE__ ) | \ - FT_ERR_CAT( ErrRaster_, e ) ) +#define FT_THROW( e ) \ + ( FT_Throw( FT_ERR_CAT( Smooth_Err_, e ), \ + __LINE__, \ + __FILE__ ) | \ + FT_ERR_CAT( Smooth_Err_, e ) ) #else /* !FT_DEBUG_LEVEL_TRACE */ #define FT_TRACE5( x ) do { } while ( 0 ) /* nothing */ #define FT_TRACE7( x ) do { } while ( 0 ) /* nothing */ #define FT_ERROR( x ) do { } while ( 0 ) /* nothing */ -#define FT_THROW( e ) FT_ERR_CAT( ErrRaster_, e ) - +#define FT_THROW( e ) FT_ERR_CAT( Smooth_Err_, e ) #endif /* !FT_DEBUG_LEVEL_TRACE */ +#define FT_Trace_Enable() do { } while ( 0 ) /* nothing */ +#define FT_Trace_Disable() do { } while ( 0 ) /* nothing */ + + #define FT_DEFINE_OUTLINE_FUNCS( class_, \ move_to_, line_to_, \ conic_to_, cubic_to_, \ @@ -278,6 +278,8 @@ typedef ptrdiff_t FT_PtrDist; #else /* !STANDALONE_ */ +#include <ft2build.h> +#include FT_CONFIG_CONFIG_H #include "ftgrays.h" #include <freetype/internal/ftobjs.h> #include <freetype/internal/ftdebug.h> @@ -286,10 +288,6 @@ typedef ptrdiff_t FT_PtrDist; #include "ftsmerrs.h" -#define Smooth_Err_Invalid_Mode Smooth_Err_Cannot_Render_Glyph -#define Smooth_Err_Memory_Overflow Smooth_Err_Out_Of_Memory -#define ErrRaster_Memory_Overflow Smooth_Err_Out_Of_Memory - #endif /* !STANDALONE_ */ @@ -362,7 +360,7 @@ typedef ptrdiff_t FT_PtrDist; } \ FT_END_STMNT -#ifdef __arm__ +#if defined( __GNUC__ ) && __GNUC__ < 7 && defined( __arm__ ) /* Work around a bug specific to GCC which make the compiler fail to */ /* optimize a division and modulo operation on the same parameters */ /* into a single call to `__aeabi_idivmod'. See */ @@ -382,14 +380,58 @@ typedef ptrdiff_t FT_PtrDist; #endif /* __arm__ */ - /* These macros speed up repetitive divisions by replacing them */ - /* with multiplications and right shifts. */ -#define FT_UDIVPREP( c, b ) \ - long b ## _r = c ? (long)( FT_ULONG_MAX >> PIXEL_BITS ) / ( b ) \ - : 0 -#define FT_UDIV( a, b ) \ - (TCoord)( ( (unsigned long)( a ) * (unsigned long)( b ## _r ) ) >> \ - ( sizeof( long ) * FT_CHAR_BIT - PIXEL_BITS ) ) + /* Calculating coverages for a slanted line requires a division each */ + /* time the line crosses from cell to cell. These macros speed up */ + /* the repetitive divisions by replacing them with multiplications */ + /* and right shifts so that at most two divisions are performed for */ + /* each slanted line. Nevertheless, these divisions are noticeable */ + /* in the overall performance because flattened curves produce a */ + /* very large number of slanted lines. */ + /* */ + /* The division results here are always within ONE_PIXEL. Therefore */ + /* the shift magnitude should be at least PIXEL_BITS wider than the */ + /* divisors to provide sufficient accuracy of the multiply-shift. */ + /* It should not exceed (64 - PIXEL_BITS) to prevent overflowing and */ + /* leave enough room for 64-bit unsigned multiplication however. */ +#define FT_UDIVPREP( c, b ) \ + FT_Int64 b ## _r = c ? (FT_Int64)0xFFFFFFFF / ( b ) : 0 +#define FT_UDIV( a, b ) \ + (TCoord)( ( (FT_UInt64)( a ) * (FT_UInt64)( b ## _r ) ) >> 32 ) + + + /* Scale area and apply fill rule to calculate the coverage byte. */ + /* The top fill bit is used for the non-zero rule. The eighth */ + /* fill bit is used for the even-odd rule. The higher coverage */ + /* bytes are either clamped for the non-zero-rule or discarded */ + /* later for the even-odd rule. */ +#define FT_FILL_RULE( coverage, area, fill ) \ + FT_BEGIN_STMNT \ + coverage = (int)( area >> ( PIXEL_BITS * 2 + 1 - 8 ) ); \ + if ( coverage & fill ) \ + coverage = ~coverage; \ + if ( coverage > 255 && fill & INT_MIN ) \ + coverage = 255; \ + FT_END_STMNT + + + /* It is faster to write small spans byte-by-byte than calling */ + /* `memset'. This is mainly due to the cost of the function call. */ +#define FT_GRAY_SET( d, s, count ) \ + FT_BEGIN_STMNT \ + unsigned char* q = d; \ + switch ( count ) \ + { \ + case 7: *q++ = (unsigned char)s; /* fall through */ \ + case 6: *q++ = (unsigned char)s; /* fall through */ \ + case 5: *q++ = (unsigned char)s; /* fall through */ \ + case 4: *q++ = (unsigned char)s; /* fall through */ \ + case 3: *q++ = (unsigned char)s; /* fall through */ \ + case 2: *q++ = (unsigned char)s; /* fall through */ \ + case 1: *q = (unsigned char)s; /* fall through */ \ + case 0: break; \ + default: FT_MEM_SET( d, s, count ); \ + } \ + FT_END_STMNT /************************************************************************** @@ -432,7 +474,7 @@ typedef ptrdiff_t FT_PtrDist; #endif /* FT_Span buffer size for direct rendering only */ -#define FT_MAX_GRAY_SPANS 10 +#define FT_MAX_GRAY_SPANS 16 #if defined( _MSC_VER ) /* Visual C++ (and Intel C++) */ @@ -447,28 +489,24 @@ typedef ptrdiff_t FT_PtrDist; { ft_jmp_buf jump_buffer; - TCoord ex, ey; - TCoord min_ex, max_ex; + TCoord min_ex, max_ex; /* min and max integer pixel coordinates */ TCoord min_ey, max_ey; + TCoord count_ey; /* same as (max_ey - min_ey) */ - TArea area; - TCoord cover; - int invalid; + PCell cell; /* current cell */ + PCell cell_free; /* call allocation next free slot */ + PCell cell_null; /* last cell, used as dumpster and limit */ - PCell* ycells; - PCell cells; - FT_PtrDist max_cells; - FT_PtrDist num_cells; + PCell* ycells; /* array of cell linked-lists; one per */ + /* vertical coordinate in the current band */ - TPos x, y; + TPos x, y; /* last point position */ - FT_Outline outline; - TPixmap target; + FT_Outline outline; /* input outline */ + TPixmap target; /* target pixmap */ FT_Raster_Span_Func render_span; void* render_span_data; - FT_Span spans[FT_MAX_GRAY_SPANS]; - int num_spans; } gray_TWorker, *gray_PWorker; @@ -476,17 +514,25 @@ typedef ptrdiff_t FT_PtrDist; #pragma warning( pop ) #endif - #ifndef FT_STATIC_RASTER #define ras (*worker) #else static gray_TWorker ras; #endif + /* The |x| value of the null cell. Must be the largest possible */ + /* integer value stored in a `TCell.x` field. */ +#define CELL_MAX_X_VALUE INT_MAX + + +#define FT_INTEGRATE( ras, a, b ) \ + ras.cell->cover = ADD_INT( ras.cell->cover, a ), \ + ras.cell->area = ADD_INT( ras.cell->area, (a) * (TArea)(b) ) + typedef struct gray_TRaster_ { - void* memory; + void* memory; } gray_TRaster, *gray_PRaster; @@ -508,7 +554,7 @@ typedef ptrdiff_t FT_PtrDist; printf( "%3d:", y ); - for ( ; cell != NULL; cell = cell->next ) + for ( ; cell != ras.cell_null; cell = cell->next ) printf( " (%3d, c:%4d, a:%6d)", cell->x, cell->cover, cell->area ); printf( "\n" ); @@ -520,81 +566,67 @@ typedef ptrdiff_t FT_PtrDist; /************************************************************************** * - * Record the current cell in the linked list. + * Set the current cell to a new position. */ static void - gray_record_cell( RAS_ARG ) + gray_set_cell( RAS_ARG_ TCoord ex, + TCoord ey ) { - PCell *pcell, cell; - TCoord x = ras.ex; - + /* Move the cell pointer to a new position in the linked list. We use */ + /* a dumpster null cell for everything outside of the clipping region */ + /* during the render phase. This means that: */ + /* */ + /* . the new vertical position must be within min_ey..max_ey-1. */ + /* . the new horizontal position must be strictly less than max_ex */ + /* */ + /* Note that if a cell is to the left of the clipping region, it is */ + /* actually set to the (min_ex-1) horizontal position. */ - pcell = &ras.ycells[ras.ey - ras.min_ey]; - while ( ( cell = *pcell ) ) - { - if ( cell->x > x ) - break; + TCoord ey_index = ey - ras.min_ey; - if ( cell->x == x ) - goto Found; - pcell = &cell->next; - } + if ( ey_index < 0 || ey_index >= ras.count_ey || ex >= ras.max_ex ) + ras.cell = ras.cell_null; + else + { + PCell* pcell = ras.ycells + ey_index; + PCell cell; - if ( ras.num_cells >= ras.max_cells ) - ft_longjmp( ras.jump_buffer, 1 ); - /* insert new cell */ - cell = ras.cells + ras.num_cells++; - cell->x = x; - cell->area = ras.area; - cell->cover = ras.cover; + ex = FT_MAX( ex, ras.min_ex - 1 ); - cell->next = *pcell; - *pcell = cell; + while ( 1 ) + { + cell = *pcell; - return; + if ( cell->x > ex ) + break; - Found: - /* update old cell */ - cell->area += ras.area; - cell->cover += ras.cover; - } + if ( cell->x == ex ) + goto Found; + pcell = &cell->next; + } - /************************************************************************** - * - * Set the current cell to a new position. - */ - static void - gray_set_cell( RAS_ARG_ TCoord ex, - TCoord ey ) - { - /* Move the cell pointer to a new position. We set the `invalid' */ - /* flag to indicate that the cell isn't part of those we're interested */ - /* in during the render phase. This means that: */ - /* */ - /* . the new vertical position must be within min_ey..max_ey-1. */ - /* . the new horizontal position must be strictly less than max_ex */ - /* */ - /* Note that if a cell is to the left of the clipping region, it is */ - /* actually set to the (min_ex-1) horizontal position. */ + /* insert new cell */ + cell = ras.cell_free++; + if ( cell >= ras.cell_null ) + ft_longjmp( ras.jump_buffer, 1 ); - /* record the current one if it is valid and substantial */ - if ( !ras.invalid && ( ras.area || ras.cover ) ) - gray_record_cell( RAS_VAR ); + cell->x = ex; + cell->area = 0; + cell->cover = 0; - ras.area = 0; - ras.cover = 0; - ras.ex = FT_MAX( ex, ras.min_ex - 1 ); - ras.ey = ey; + cell->next = *pcell; + *pcell = cell; - ras.invalid = ( ey >= ras.max_ey || ey < ras.min_ey || - ex >= ras.max_ex ); + Found: + ras.cell = cell; + } } -#ifndef FT_LONG64 +#ifndef FT_INT64 /************************************************************************** * @@ -622,8 +654,8 @@ typedef ptrdiff_t FT_PtrDist; return; } - fx1 = FRACT( x1 ); - fx2 = FRACT( x2 ); + fx1 = FRACT( x1 ); + fx2 = FRACT( x2 ); /* everything is located in a single cell. That is easy! */ /* */ @@ -655,10 +687,9 @@ typedef ptrdiff_t FT_PtrDist; /* XXX: y-delta and x-delta below should be related. */ FT_DIV_MOD( TCoord, p, dx, delta, mod ); - ras.area += (TArea)( ( fx1 + first ) * delta ); - ras.cover += delta; - y1 += delta; - ex1 += incr; + FT_INTEGRATE( ras, delta, fx1 + first ); + y1 += delta; + ex1 += incr; gray_set_cell( RAS_VAR_ ex1, ey ); if ( ex1 != ex2 ) @@ -679,10 +710,9 @@ typedef ptrdiff_t FT_PtrDist; delta++; } - ras.area += (TArea)( ONE_PIXEL * delta ); - ras.cover += delta; - y1 += delta; - ex1 += incr; + FT_INTEGRATE( ras, delta, ONE_PIXEL ); + y1 += delta; + ex1 += incr; gray_set_cell( RAS_VAR_ ex1, ey ); } while ( ex1 != ex2 ); } @@ -690,10 +720,7 @@ typedef ptrdiff_t FT_PtrDist; fx1 = ONE_PIXEL - first; End: - dy = y2 - y1; - - ras.area += (TArea)( ( fx1 + fx2 ) * dy ); - ras.cover += dy; + FT_INTEGRATE( ras, y2 - y1, fx1 + fx2 ); } @@ -736,7 +763,6 @@ typedef ptrdiff_t FT_PtrDist; { TCoord ex = TRUNC( ras.x ); TCoord two_fx = FRACT( ras.x ) << 1; - TArea area; if ( dy > 0) @@ -750,27 +776,23 @@ typedef ptrdiff_t FT_PtrDist; incr = -1; } - delta = first - fy1; - ras.area += (TArea)two_fx * delta; - ras.cover += delta; - ey1 += incr; + delta = first - fy1; + FT_INTEGRATE( ras, delta, two_fx); + ey1 += incr; gray_set_cell( RAS_VAR_ ex, ey1 ); delta = first + first - ONE_PIXEL; - area = (TArea)two_fx * delta; while ( ey1 != ey2 ) { - ras.area += area; - ras.cover += delta; - ey1 += incr; + FT_INTEGRATE( ras, delta, two_fx); + ey1 += incr; gray_set_cell( RAS_VAR_ ex, ey1 ); } - delta = fy2 - ONE_PIXEL + first; - ras.area += (TArea)two_fx * delta; - ras.cover += delta; + delta = fy2 - ONE_PIXEL + first; + FT_INTEGRATE( ras, delta, two_fx); goto End; } @@ -883,8 +905,7 @@ typedef ptrdiff_t FT_PtrDist; do { fy2 = ONE_PIXEL; - ras.cover += ( fy2 - fy1 ); - ras.area += ( fy2 - fy1 ) * fx1 * 2; + FT_INTEGRATE( ras, fy2 - fy1, fx1 * 2 ); fy1 = 0; ey1++; gray_set_cell( RAS_VAR_ ex1, ey1 ); @@ -893,8 +914,7 @@ typedef ptrdiff_t FT_PtrDist; do { fy2 = 0; - ras.cover += ( fy2 - fy1 ); - ras.area += ( fy2 - fy1 ) * fx1 * 2; + FT_INTEGRATE( ras, fy2 - fy1, fx1 * 2 ); fy1 = ONE_PIXEL; ey1--; gray_set_cell( RAS_VAR_ ex1, ey1 ); @@ -902,7 +922,7 @@ typedef ptrdiff_t FT_PtrDist; } else /* any other line */ { - TPos prod = dx * (TPos)fy1 - dy * (TPos)fx1; + FT_Int64 prod = dx * (FT_Int64)fy1 - dy * (FT_Int64)fx1; FT_UDIVPREP( ex1 != ex2, dx ); FT_UDIVPREP( ey1 != ey2, dy ); @@ -912,72 +932,308 @@ typedef ptrdiff_t FT_PtrDist; /* also easily updated when moving from one cell to the next. */ do { - if ( prod <= 0 && - prod - dx * ONE_PIXEL > 0 ) /* left */ + if ( prod - dx * ONE_PIXEL > 0 && + prod <= 0 ) /* left */ { fx2 = 0; fy2 = FT_UDIV( -prod, -dx ); prod -= dy * ONE_PIXEL; - ras.cover += ( fy2 - fy1 ); - ras.area += ( fy2 - fy1 ) * ( fx1 + fx2 ); + FT_INTEGRATE( ras, fy2 - fy1, fx1 + fx2 ); fx1 = ONE_PIXEL; fy1 = fy2; ex1--; } - else if ( prod - dx * ONE_PIXEL <= 0 && - prod - dx * ONE_PIXEL + dy * ONE_PIXEL > 0 ) /* up */ + else if ( prod - dx * ONE_PIXEL + dy * ONE_PIXEL > 0 && + prod - dx * ONE_PIXEL <= 0 ) /* up */ { prod -= dx * ONE_PIXEL; fx2 = FT_UDIV( -prod, dy ); fy2 = ONE_PIXEL; - ras.cover += ( fy2 - fy1 ); - ras.area += ( fy2 - fy1 ) * ( fx1 + fx2 ); + FT_INTEGRATE( ras, fy2 - fy1, fx1 + fx2 ); fx1 = fx2; fy1 = 0; ey1++; } - else if ( prod - dx * ONE_PIXEL + dy * ONE_PIXEL <= 0 && - prod + dy * ONE_PIXEL >= 0 ) /* right */ + else if ( prod + dy * ONE_PIXEL >= 0 && + prod - dx * ONE_PIXEL + dy * ONE_PIXEL <= 0 ) /* right */ { prod += dy * ONE_PIXEL; fx2 = ONE_PIXEL; fy2 = FT_UDIV( prod, dx ); - ras.cover += ( fy2 - fy1 ); - ras.area += ( fy2 - fy1 ) * ( fx1 + fx2 ); + FT_INTEGRATE( ras, fy2 - fy1, fx1 + fx2 ); fx1 = 0; fy1 = fy2; ex1++; } - else /* ( prod + dy * ONE_PIXEL < 0 && - prod > 0 ) down */ + else /* ( prod > 0 && + prod + dy * ONE_PIXEL < 0 ) down */ { fx2 = FT_UDIV( prod, -dy ); fy2 = 0; prod += dx * ONE_PIXEL; - ras.cover += ( fy2 - fy1 ); - ras.area += ( fy2 - fy1 ) * ( fx1 + fx2 ); + FT_INTEGRATE( ras, fy2 - fy1, fx1 + fx2 ); fx1 = fx2; fy1 = ONE_PIXEL; ey1--; } gray_set_cell( RAS_VAR_ ex1, ey1 ); + } while ( ex1 != ex2 || ey1 != ey2 ); } fx2 = FRACT( to_x ); fy2 = FRACT( to_y ); - ras.cover += ( fy2 - fy1 ); - ras.area += ( fy2 - fy1 ) * ( fx1 + fx2 ); + FT_INTEGRATE( ras, fy2 - fy1, fx1 + fx2 ); End: - ras.x = to_x; - ras.y = to_y; + ras.x = to_x; + ras.y = to_y; } #endif + /* + * Benchmarking shows that using DDA to flatten the quadratic Bézier arcs + * is slightly faster in the following cases: + * + * - When the host CPU is 64-bit. + * - When SSE2 SIMD registers and instructions are available (even on + * x86). + * + * For other cases, using binary splits is actually slightly faster. + */ +#if defined( __SSE2__ ) || \ + defined( __x86_64__ ) || \ + defined( _M_AMD64 ) || \ + ( defined( _M_IX86_FP ) && _M_IX86_FP >= 2 ) +# define FT_SSE2 1 +#else +# define FT_SSE2 0 +#endif + +#if FT_SSE2 || \ + defined( __aarch64__ ) || \ + defined( _M_ARM64 ) +# define BEZIER_USE_DDA 1 +#else +# define BEZIER_USE_DDA 0 +#endif + + /* + * For now, the code that depends on `BEZIER_USE_DDA` requires `FT_Int64` + * to be defined. If `FT_INT64` is not defined, meaning there is no + * 64-bit type available, disable it to avoid compilation errors. See for + * example https://gitlab.freedesktop.org/freetype/freetype/-/issues/1071. + */ +#if !defined( FT_INT64 ) +# undef BEZIER_USE_DDA +# define BEZIER_USE_DDA 0 +#endif + +#if BEZIER_USE_DDA + +#if FT_SSE2 +# include <emmintrin.h> +#endif + +#define LEFT_SHIFT( a, b ) (FT_Int64)( (FT_UInt64)(a) << (b) ) + + + static void + gray_render_conic( RAS_ARG_ const FT_Vector* control, + const FT_Vector* to ) + { + FT_Vector p0, p1, p2; + TPos ax, ay, bx, by, dx, dy; + int shift; + + FT_Int64 rx, ry; + FT_Int64 qx, qy; + FT_Int64 px, py; + + FT_UInt count; + + + p0.x = ras.x; + p0.y = ras.y; + p1.x = UPSCALE( control->x ); + p1.y = UPSCALE( control->y ); + p2.x = UPSCALE( to->x ); + p2.y = UPSCALE( to->y ); + + /* short-cut the arc that crosses the current band */ + if ( ( TRUNC( p0.y ) >= ras.max_ey && + TRUNC( p1.y ) >= ras.max_ey && + TRUNC( p2.y ) >= ras.max_ey ) || + ( TRUNC( p0.y ) < ras.min_ey && + TRUNC( p1.y ) < ras.min_ey && + TRUNC( p2.y ) < ras.min_ey ) ) + { + ras.x = p2.x; + ras.y = p2.y; + return; + } + + bx = p1.x - p0.x; + by = p1.y - p0.y; + ax = p2.x - p1.x - bx; /* p0.x + p2.x - 2 * p1.x */ + ay = p2.y - p1.y - by; /* p0.y + p2.y - 2 * p1.y */ + + dx = FT_ABS( ax ); + dy = FT_ABS( ay ); + if ( dx < dy ) + dx = dy; + + if ( dx <= ONE_PIXEL / 4 ) + { + gray_render_line( RAS_VAR_ p2.x, p2.y ); + return; + } + + /* We can calculate the number of necessary bisections because */ + /* each bisection predictably reduces deviation exactly 4-fold. */ + /* Even 32-bit deviation would vanish after 16 bisections. */ + shift = 0; + do + { + dx >>= 2; + shift += 1; + + } while ( dx > ONE_PIXEL / 4 ); + + /* + * The (P0,P1,P2) arc equation, for t in [0,1] range: + * + * P(t) = P0*(1-t)^2 + P1*2*t*(1-t) + P2*t^2 + * + * P(t) = P0 + 2*(P1-P0)*t + (P0+P2-2*P1)*t^2 + * = P0 + 2*B*t + A*t^2 + * + * for A = P0 + P2 - 2*P1 + * and B = P1 - P0 + * + * Let's consider the difference when advancing by a small + * parameter h: + * + * Q(h,t) = P(t+h) - P(t) = 2*B*h + A*h^2 + 2*A*h*t + * + * And then its own difference: + * + * R(h,t) = Q(h,t+h) - Q(h,t) = 2*A*h*h = R (constant) + * + * Since R is always a constant, it is possible to compute + * successive positions with: + * + * P = P0 + * Q = Q(h,0) = 2*B*h + A*h*h + * R = 2*A*h*h + * + * loop: + * P += Q + * Q += R + * EMIT(P) + * + * To ensure accurate results, perform computations on 64-bit + * values, after scaling them by 2^32. + * + * h = 1 / 2^N + * + * R << 32 = 2 * A << (32 - N - N) + * = A << (33 - 2*N) + * + * Q << 32 = (2 * B << (32 - N)) + (A << (32 - N - N)) + * = (B << (33 - N)) + (A << (32 - 2*N)) + */ + +#if FT_SSE2 + /* Experience shows that for small shift values, */ + /* SSE2 is actually slower. */ + if ( shift > 2 ) + { + union + { + struct { FT_Int64 ax, ay, bx, by; } i; + struct { __m128i a, b; } vec; + + } u; + + union + { + struct { FT_Int32 px_lo, px_hi, py_lo, py_hi; } i; + __m128i vec; + + } v; + + __m128i a, b; + __m128i r, q, q2; + __m128i p; + + + u.i.ax = ax; + u.i.ay = ay; + u.i.bx = bx; + u.i.by = by; + + a = _mm_load_si128( &u.vec.a ); + b = _mm_load_si128( &u.vec.b ); + + r = _mm_slli_epi64( a, 33 - 2 * shift ); + q = _mm_slli_epi64( b, 33 - shift ); + q2 = _mm_slli_epi64( a, 32 - 2 * shift ); + + q = _mm_add_epi64( q2, q ); + + v.i.px_lo = 0; + v.i.px_hi = p0.x; + v.i.py_lo = 0; + v.i.py_hi = p0.y; + + p = _mm_load_si128( &v.vec ); + + for ( count = 1U << shift; count > 0; count-- ) + { + p = _mm_add_epi64( p, q ); + q = _mm_add_epi64( q, r ); + + _mm_store_si128( &v.vec, p ); + + gray_render_line( RAS_VAR_ v.i.px_hi, v.i.py_hi ); + } + + return; + } +#endif /* FT_SSE2 */ + + rx = LEFT_SHIFT( ax, 33 - 2 * shift ); + ry = LEFT_SHIFT( ay, 33 - 2 * shift ); + + qx = LEFT_SHIFT( bx, 33 - shift ) + LEFT_SHIFT( ax, 32 - 2 * shift ); + qy = LEFT_SHIFT( by, 33 - shift ) + LEFT_SHIFT( ay, 32 - 2 * shift ); + + px = LEFT_SHIFT( p0.x, 32 ); + py = LEFT_SHIFT( p0.y, 32 ); + + for ( count = 1U << shift; count > 0; count-- ) + { + px += qx; + py += qy; + qx += rx; + qy += ry; + + gray_render_line( RAS_VAR_ (FT_Pos)( px >> 32 ), + (FT_Pos)( py >> 32 ) ); + } + } + +#else /* !BEZIER_USE_DDA */ + + /* + * Note that multiple attempts to speed up the function below + * with SSE2 intrinsics, using various data layouts, have turned + * out to be slower than the non-SIMD code below. + */ static void gray_split_conic( FT_Vector* base ) { @@ -1007,7 +1263,7 @@ typedef ptrdiff_t FT_PtrDist; FT_Vector bez_stack[16 * 2 + 1]; /* enough to accommodate bisections */ FT_Vector* arc = bez_stack; TPos dx, dy; - int draw, split; + int draw; arc[0].x = UPSCALE( to->x ); @@ -1050,7 +1306,9 @@ typedef ptrdiff_t FT_PtrDist; /* many times as there are trailing zeros in the counter. */ do { - split = draw & ( -draw ); /* isolate the rightmost 1-bit */ + int split = draw & ( -draw ); /* isolate the rightmost 1-bit */ + + while ( ( split >>= 1 ) ) { gray_split_conic( arc ); @@ -1063,7 +1321,17 @@ typedef ptrdiff_t FT_PtrDist; } while ( --draw ); } +#endif /* !BEZIER_USE_DDA */ + + /* + * For cubic Bézier, binary splits are still faster than DDA + * because the splits are adaptive to how quickly each sub-arc + * approaches their chord trisection points. + * + * It might be useful to experiment with SSE2 to speed up + * `gray_split_cubic`, though. + */ static void gray_split_cubic( FT_Vector* base ) { @@ -1205,125 +1473,133 @@ typedef ptrdiff_t FT_PtrDist; static void - gray_hline( RAS_ARG_ TCoord x, - TCoord y, - TArea coverage, - TCoord acount ) + gray_sweep( RAS_ARG ) { - /* scale the coverage from 0..(ONE_PIXEL*ONE_PIXEL*2) to 0..256 */ - coverage >>= PIXEL_BITS * 2 + 1 - 8; + int fill = ( ras.outline.flags & FT_OUTLINE_EVEN_ODD_FILL ) ? 0x100 + : INT_MIN; + int coverage; + int y; - /* compute the line's coverage depending on the outline fill rule */ - if ( ras.outline.flags & FT_OUTLINE_EVEN_ODD_FILL ) - { - coverage &= 511; - if ( coverage >= 256 ) - coverage = 511 - coverage; - } - else /* default non-zero winding rule */ + for ( y = ras.min_ey; y < ras.max_ey; y++ ) { - if ( coverage < 0 ) - coverage = ~coverage; /* the same as -coverage - 1 */ + PCell cell = ras.ycells[y - ras.min_ey]; + TCoord x = ras.min_ex; + TArea cover = 0; - if ( coverage >= 256 ) - coverage = 255; - } + unsigned char* line = ras.target.origin - ras.target.pitch * y; - if ( ras.num_spans >= 0 ) /* for FT_RASTER_FLAG_DIRECT only */ - { - FT_Span* span = ras.spans + ras.num_spans++; + + for ( ; cell != ras.cell_null; cell = cell->next ) + { + TArea area; - span->x = (short)x; - span->len = (unsigned short)acount; - span->coverage = (unsigned char)coverage; + if ( cover != 0 && cell->x > x ) + { + FT_FILL_RULE( coverage, cover, fill ); + FT_GRAY_SET( line + x, coverage, cell->x - x ); + } - if ( ras.num_spans == FT_MAX_GRAY_SPANS ) - { - /* flush the span buffer and reset the count */ - ras.render_span( y, ras.num_spans, ras.spans, ras.render_span_data ); - ras.num_spans = 0; - } - } - else - { - unsigned char* q = ras.target.origin - ras.target.pitch * y + x; - unsigned char c = (unsigned char)coverage; + cover += (TArea)cell->cover * ( ONE_PIXEL * 2 ); + area = cover - cell->area; + if ( area != 0 && cell->x >= ras.min_ex ) + { + FT_FILL_RULE( coverage, area, fill ); + line[cell->x] = (unsigned char)coverage; + } + + x = cell->x + 1; + } - /* For small-spans it is faster to do it by ourselves than - * calling `memset'. This is mainly due to the cost of the - * function call. - */ - switch ( acount ) + if ( cover != 0 ) /* only if cropped */ { - case 7: - *q++ = c; - /* fall through */ - case 6: - *q++ = c; - /* fall through */ - case 5: - *q++ = c; - /* fall through */ - case 4: - *q++ = c; - /* fall through */ - case 3: - *q++ = c; - /* fall through */ - case 2: - *q++ = c; - /* fall through */ - case 1: - *q = c; - /* fall through */ - case 0: - break; - default: - FT_MEM_SET( q, c, acount ); + FT_FILL_RULE( coverage, cover, fill ); + FT_GRAY_SET( line + x, coverage, ras.max_ex - x ); } } } static void - gray_sweep( RAS_ARG ) + gray_sweep_direct( RAS_ARG ) { + int fill = ( ras.outline.flags & FT_OUTLINE_EVEN_ODD_FILL ) ? 0x100 + : INT_MIN; + int coverage; int y; + FT_Span span[FT_MAX_GRAY_SPANS]; + int n = 0; + for ( y = ras.min_ey; y < ras.max_ey; y++ ) { PCell cell = ras.ycells[y - ras.min_ey]; TCoord x = ras.min_ex; TArea cover = 0; - TArea area; - for ( ; cell != NULL; cell = cell->next ) + for ( ; cell != ras.cell_null; cell = cell->next ) { + TArea area; + + if ( cover != 0 && cell->x > x ) - gray_hline( RAS_VAR_ x, y, cover, cell->x - x ); + { + FT_FILL_RULE( coverage, cover, fill ); + + span[n].coverage = (unsigned char)coverage; + span[n].x = (short)x; + span[n].len = (unsigned short)( cell->x - x ); + + if ( ++n == FT_MAX_GRAY_SPANS ) + { + /* flush the span buffer and reset the count */ + ras.render_span( y, n, span, ras.render_span_data ); + n = 0; + } + } cover += (TArea)cell->cover * ( ONE_PIXEL * 2 ); area = cover - cell->area; if ( area != 0 && cell->x >= ras.min_ex ) - gray_hline( RAS_VAR_ cell->x, y, area, 1 ); + { + FT_FILL_RULE( coverage, area, fill ); + + span[n].coverage = (unsigned char)coverage; + span[n].x = (short)cell->x; + span[n].len = 1; + + if ( ++n == FT_MAX_GRAY_SPANS ) + { + /* flush the span buffer and reset the count */ + ras.render_span( y, n, span, ras.render_span_data ); + n = 0; + } + } x = cell->x + 1; } - if ( cover != 0 ) - gray_hline( RAS_VAR_ x, y, cover, ras.max_ex - x ); + if ( cover != 0 ) /* only if cropped */ + { + FT_FILL_RULE( coverage, cover, fill ); + + span[n].coverage = (unsigned char)coverage; + span[n].x = (short)x; + span[n].len = (unsigned short)( ras.max_ex - x ); + + ++n; + } - if ( ras.num_spans > 0 ) /* for FT_RASTER_FLAG_DIRECT only */ + if ( n ) { /* flush the span buffer and reset the count */ - ras.render_span( y, ras.num_spans, ras.spans, ras.render_span_data ); - ras.num_spans = 0; + ras.render_span( y, n, span, ras.render_span_data ); + n = 0; } } } @@ -1604,7 +1880,7 @@ typedef ptrdiff_t FT_PtrDist; } FT_TRACE5(( "FT_Outline_Decompose: Done\n", n )); - return 0; + return Smooth_Err_Ok; Exit: FT_TRACE5(( "FT_Outline_Decompose: Error 0x%x\n", error )); @@ -1645,18 +1921,15 @@ typedef ptrdiff_t FT_PtrDist; if ( continued ) FT_Trace_Enable(); - if ( !ras.invalid ) - gray_record_cell( RAS_VAR ); - - FT_TRACE7(( "band [%d..%d]: %ld cell%s\n", + FT_TRACE7(( "band [%d..%d]: %ld cell%s remaining/\n", ras.min_ey, ras.max_ey, - ras.num_cells, - ras.num_cells == 1 ? "" : "s" )); + ras.cell_null - ras.cell_free, + ras.cell_null - ras.cell_free == 1 ? "" : "s" )); } else { - error = FT_THROW( Memory_Overflow ); + error = FT_THROW( Raster_Overflow ); FT_TRACE7(( "band [%d..%d]: to be bisected\n", ras.min_ey, ras.max_ey )); @@ -1682,7 +1955,16 @@ typedef ptrdiff_t FT_PtrDist; int continued = 0; + /* Initialize the null cell at the end of the poll. */ + ras.cell_null = buffer + FT_MAX_GRAY_POOL - 1; + ras.cell_null->x = CELL_MAX_X_VALUE; + ras.cell_null->area = 0; + ras.cell_null->cover = 0; + ras.cell_null->next = NULL; + /* set up vertical bands */ + ras.ycells = (PCell*)buffer; + if ( height > n ) { /* two divisions rounded up */ @@ -1690,13 +1972,6 @@ typedef ptrdiff_t FT_PtrDist; height = ( height + n - 1 ) / n; } - /* memory management */ - n = ( height * sizeof ( PCell ) + sizeof ( TCell ) - 1 ) / sizeof ( TCell ); - - ras.cells = buffer + n; - ras.max_cells = (FT_PtrDist)( FT_MAX_GRAY_POOL - n ); - ras.ycells = (PCell*)buffer; - for ( y = yMin; y < yMax; ) { ras.min_ey = y; @@ -1710,27 +1985,37 @@ typedef ptrdiff_t FT_PtrDist; do { TCoord width = band[0] - band[1]; + TCoord w; int error; - FT_MEM_ZERO( ras.ycells, height * sizeof ( PCell ) ); + for ( w = 0; w < width; ++w ) + ras.ycells[w] = ras.cell_null; - ras.num_cells = 0; - ras.invalid = 1; + /* memory management: skip ycells */ + n = ( (size_t)width * sizeof ( PCell ) + sizeof ( TCell ) - 1 ) / + sizeof ( TCell ); + + ras.cell_free = buffer + n; + ras.cell = ras.cell_null; ras.min_ey = band[1]; ras.max_ey = band[0]; + ras.count_ey = width; error = gray_convert_glyph_inner( RAS_VAR, continued ); continued = 1; if ( !error ) { - gray_sweep( RAS_VAR ); + if ( ras.render_span ) /* for FT_RASTER_FLAG_DIRECT only */ + gray_sweep_direct( RAS_VAR ); + else + gray_sweep( RAS_VAR ); band--; continue; } - else if ( error != ErrRaster_Memory_Overflow ) - return 1; + else if ( error != Smooth_Err_Raster_Overflow ) + return error; /* render pool overflow; we will reduce the render band by half */ width >>= 1; @@ -1739,7 +2024,7 @@ typedef ptrdiff_t FT_PtrDist; if ( width == 0 ) { FT_TRACE7(( "gray_convert_glyph: rotten glyph\n" )); - return 1; + return FT_THROW( Raster_Overflow ); } band++; @@ -1748,7 +2033,7 @@ typedef ptrdiff_t FT_PtrDist; } while ( band >= bands ); } - return 0; + return Smooth_Err_Ok; } @@ -1769,14 +2054,14 @@ typedef ptrdiff_t FT_PtrDist; /* this version does not support monochrome rendering */ if ( !( params->flags & FT_RASTER_FLAG_AA ) ) - return FT_THROW( Invalid_Mode ); + return FT_THROW( Cannot_Render_Glyph ); if ( !outline ) return FT_THROW( Invalid_Outline ); /* return immediately if the outline is empty */ if ( outline->n_points == 0 || outline->n_contours <= 0 ) - return 0; + return Smooth_Err_Ok; if ( !outline->contours || !outline->points ) return FT_THROW( Invalid_Outline ); @@ -1790,11 +2075,10 @@ typedef ptrdiff_t FT_PtrDist; if ( params->flags & FT_RASTER_FLAG_DIRECT ) { if ( !params->gray_spans ) - return 0; + return Smooth_Err_Ok; ras.render_span = (FT_Raster_Span_Func)params->gray_spans; ras.render_span_data = params->user; - ras.num_spans = 0; ras.min_ex = params->clip_box.xMin; ras.min_ey = params->clip_box.yMin; @@ -1809,7 +2093,7 @@ typedef ptrdiff_t FT_PtrDist; /* nothing to do */ if ( !target_map->width || !target_map->rows ) - return 0; + return Smooth_Err_Ok; if ( !target_map->buffer ) return FT_THROW( Invalid_Argument ); @@ -1824,7 +2108,6 @@ typedef ptrdiff_t FT_PtrDist; ras.render_span = (FT_Raster_Span_Func)NULL; ras.render_span_data = NULL; - ras.num_spans = -1; /* invalid */ ras.min_ex = 0; ras.min_ey = 0; @@ -1834,7 +2117,7 @@ typedef ptrdiff_t FT_PtrDist; /* exit if nothing to do */ if ( ras.max_ex <= ras.min_ex || ras.max_ey <= ras.min_ey ) - return 0; + return Smooth_Err_Ok; return gray_convert_glyph( RAS_VAR ); } @@ -1871,19 +2154,17 @@ typedef ptrdiff_t FT_PtrDist; #else /* !STANDALONE_ */ static int - gray_raster_new( FT_Memory memory, - FT_Raster* araster ) + gray_raster_new( FT_Memory memory, + gray_PRaster* araster ) { FT_Error error; gray_PRaster raster = NULL; - *araster = 0; - if ( !FT_ALLOC( raster, sizeof ( gray_TRaster ) ) ) - { + if ( !FT_NEW( raster ) ) raster->memory = memory; - *araster = (FT_Raster)raster; - } + + *araster = raster; return error; } diff --git a/src/smooth/ftgrays.h b/src/smooth/ftgrays.h index caba63283..3dad0498d 100644 --- a/src/smooth/ftgrays.h +++ b/src/smooth/ftgrays.h @@ -4,7 +4,7 @@ * * FreeType smooth renderer declaration * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/smooth/ftsmerrs.h b/src/smooth/ftsmerrs.h index e93f3df9b..dc2c40cc9 100644 --- a/src/smooth/ftsmerrs.h +++ b/src/smooth/ftsmerrs.h @@ -4,7 +4,7 @@ * * smooth renderer error codes (specification only). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/smooth/ftsmooth.c b/src/smooth/ftsmooth.c index 5d66bd6fc..bea3b4a80 100644 --- a/src/smooth/ftsmooth.c +++ b/src/smooth/ftsmooth.c @@ -4,7 +4,7 @@ * * Anti-aliasing renderer interface (body). * - * Copyright (C) 2000-2020 by + * Copyright (C) 2000-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/smooth/ftsmooth.h b/src/smooth/ftsmooth.h index 22a88d54e..2dd81e84b 100644 --- a/src/smooth/ftsmooth.h +++ b/src/smooth/ftsmooth.h @@ -4,7 +4,7 @@ * * Anti-aliasing renderer interface (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/smooth/module.mk b/src/smooth/module.mk index 9b1507f1e..ec6537f17 100644 --- a/src/smooth/module.mk +++ b/src/smooth/module.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/smooth/rules.mk b/src/smooth/rules.mk index b08056fac..de701d91e 100644 --- a/src/smooth/rules.mk +++ b/src/smooth/rules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/smooth/smooth.c b/src/smooth/smooth.c index 04b531c08..9e2544063 100644 --- a/src/smooth/smooth.c +++ b/src/smooth/smooth.c @@ -4,7 +4,7 @@ * * FreeType anti-aliasing rasterer module component (body only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/tools/afblue.pl b/src/tools/afblue.pl index bbc4f472c..954816276 100644 --- a/src/tools/afblue.pl +++ b/src/tools/afblue.pl @@ -5,7 +5,7 @@ # # Process a blue zone character data file. # -# Copyright (C) 2013-2020 by +# Copyright (C) 2013-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, diff --git a/src/tools/apinames.c b/src/tools/apinames.c index aeecf88d2..8a8b0822b 100644 --- a/src/tools/apinames.c +++ b/src/tools/apinames.c @@ -22,7 +22,7 @@ #include <ctype.h> #define PROGRAM_NAME "apinames" -#define PROGRAM_VERSION "0.3" +#define PROGRAM_VERSION "0.4" #define LINEBUFF_SIZE 1024 @@ -33,6 +33,7 @@ typedef enum OutputFormat_ OUTPUT_WINDOWS_DEF, /* output a Windows .DEF file for Visual C++ or Mingw */ OUTPUT_BORLAND_DEF, /* output a Windows .DEF file for Borland C++ */ OUTPUT_WATCOM_LBC, /* output a Watcom Linker Command File */ + OUTPUT_VMS_OPT, /* output an OpenVMS Linker Option File */ OUTPUT_NETWARE_IMP, /* output a NetWare ImportFile */ OUTPUT_GNU_VERMAP /* output a version map for GNU or Solaris linker */ @@ -167,7 +168,6 @@ names_dump( FILE* out, case OUTPUT_WATCOM_LBC: { const char* dot; - char temp[512]; if ( !dll_name ) @@ -181,7 +181,8 @@ names_dump( FILE* out, dot = strchr( dll_name, '.' ); if ( dot ) { - int len = dot - dll_name; + char temp[512]; + int len = dot - dll_name; if ( len > (int)( sizeof ( temp ) - 1 ) ) @@ -200,6 +201,16 @@ names_dump( FILE* out, break; + case OUTPUT_VMS_OPT: + fprintf( out, "GSMATCH=LEQUAL,2,0\n" + "CASE_SENSITIVE=YES\n" + "SYMBOL_VECTOR=(-\n" ); + for ( nn = 0; nn < num_names - 1; nn++ ) + fprintf( out, " %s=PROCEDURE,-\n", the_names[nn].name ); + fprintf( out, " %s=PROCEDURE)\n", the_names[num_names - 1].name ); + + break; + case OUTPUT_NETWARE_IMP: if ( dll_name ) fprintf( out, " (%s)\n", dll_name ); @@ -352,6 +363,7 @@ usage( void ) " -w output .DEF file for Visual C++ and Mingw\n" " -wB output .DEF file for Borland C++\n" " -wW output Watcom Linker Response File\n" + " -wV output OpenVMS Linker Options File\n" " -wN output NetWare Import File\n" " -wL output version map for GNU or Solaris linker\n" "\n"; @@ -445,6 +457,10 @@ main( int argc, format = OUTPUT_WATCOM_LBC; break; + case 'V': + format = OUTPUT_VMS_OPT; + break; + case 'N': format = OUTPUT_NETWARE_IMP; break; diff --git a/src/tools/chktrcmp.py b/src/tools/chktrcmp.py index 4c40bdafd..244a24a6c 100755 --- a/src/tools/chktrcmp.py +++ b/src/tools/chktrcmp.py @@ -1,7 +1,7 @@ #!/usr/bin/env python # # Check trace components in FreeType 2 source. -# Author: suzuki toshiya, 2009, 2013 +# Author: suzuki toshiya, 2009, 2013, 2020 # # This code is explicitly into the public domain. @@ -50,7 +50,7 @@ for i in range( 1, len( sys.argv ) ): # c_pathname_pat = re.compile( '^.*\.[ch]$', re.IGNORECASE ) -trace_use_pat = re.compile( '^[ \t]*#define[ \t]+FT_COMPONENT[ \t]+trace_' ) +trace_use_pat = re.compile( '^[ \t]*#define[ \t]+FT_COMPONENT[ \t]+' ) for d in SRC_FILE_DIRS: for ( p, dlst, flst ) in os.walk( d ): diff --git a/src/tools/ftrandom/ftrandom.c b/src/tools/ftrandom/ftrandom.c index ab6242978..4f912cd21 100644 --- a/src/tools/ftrandom/ftrandom.c +++ b/src/tools/ftrandom/ftrandom.c @@ -29,7 +29,7 @@ /* This file is now part of the FreeType library */ -#define _XOPEN_SOURCE 500 /* for `kill', `strdup', `random', and `srandom' */ +#define _XOPEN_SOURCE 600 /* for `kill', `strdup', `random', and `srandom' */ #include <stdio.h> diff --git a/src/tools/glnames.py b/src/tools/glnames.py index a19ce178b..c6f2f2789 100644 --- a/src/tools/glnames.py +++ b/src/tools/glnames.py @@ -6,7 +6,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/tools/no-copyright b/src/tools/no-copyright index d639aa4a8..1eaa63096 100644 --- a/src/tools/no-copyright +++ b/src/tools/no-copyright @@ -7,8 +7,6 @@ # # Don't put empty lines into this file! # -.gitignore -# builds/unix/pkg.m4 # docs/FTL.TXT @@ -62,4 +60,6 @@ src/gzip/zutil.h src/tools/apinames.c src/tools/ftrandom/ftrandom.c # +subprojects/dlg +# # EOF diff --git a/src/tools/update-copyright-year b/src/tools/update-copyright-year index c659bbafb..69d63b60a 100755 --- a/src/tools/update-copyright-year +++ b/src/tools/update-copyright-year @@ -2,7 +2,7 @@ eval '(exit $?0)' && eval 'exec perl -wS -i "$0" ${1+"$@"}' & eval 'exec perl -wS -i "$0" $argv:q' if 0; -# Copyright (C) 2015-2020 by +# Copyright (C) 2015-2021 by # Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, @@ -28,20 +28,20 @@ eval '(exit $?0)' && eval 'exec perl -wS -i "$0" ${1+"$@"}' # # or # -# /* Copyright 2000, 2001, 2004-2007 by */ -# /* foobar */ +# /* Copyright (c) 2000, 2001, 2004-2007 by */ +# /* foobar */ # # and replaces them uniformly with # -# Copyright 2000-2015 +# Copyright (C) 2000-2021 # foobar # # and # -# /* Copyright 2000-2015 by */ -# /* foobar */ +# /* Copyright (C) 2000-2021 by */ +# /* foobar */ # -# (assuming that the current year is 2015). As can be seen, the line length +# (assuming that the current year is 2021). As can be seen, the line length # is retained if there is non-whitespace after the word `by' on the same # line. @@ -80,11 +80,11 @@ while (<>) { # Fill line to the same length (if appropriate); we skip the middle # part but insert `(C)', three spaces, and `-'. - my $space = length($+{space1}) - 1 - + length($+{middle}) - 1 - + length($+{space2}) - 1 + my $space = length($+{space1}) + + length($+{middle}) + + length($+{space2}) + length($+{space3}) - - (length("(C)") + 1); + - (length("(C)") + 3 + 1); print "$+{begin}"; print "Copyright\ (C)\ $+{first}-$year\ by"; @@ -106,19 +106,38 @@ while (<>) (?<end>.*) } { - # Fill line to the same length (if appropriate); we insert three - # spaces, a `-', and the current year. - my $space = length($+{space1}) - 1 - + length($+{space2}) - 1 - + length($+{space3}) - - (length($year) + 1); + if ($+{first} < $year) + { + # Fill line to the same length (if appropriate); we insert three + # spaces, the string `(C)', a `-', and the current year. + my $space = length($+{space1}) + + length($+{space2}) + + length($+{space3}) + - (length($year) + length("(C)") + 3 + 1); - print "$+{begin}"; - print "Copyright\ (C)\ $+{first}-$year\ by"; - # If $space is negative this inserts nothing. - print ' ' x $space if length($+{end}); - print "$+{end}\n"; - $replaced = 1; + print "$+{begin}"; + print "Copyright\ (C)\ $+{first}-$year\ by"; + # If $space is negative this inserts nothing. + print ' ' x $space if length($+{end}); + print "$+{end}\n"; + $replaced = 1; + } + else + { + # Fill line to the same length (if appropriate); we insert three + # spaces and the string `(C)'. + my $space = length($+{space1}) + + length($+{space2}) + + length($+{space3}) + - (length("(C)") + 3); + + print "$+{begin}"; + print "Copyright\ (C)\ $+{first}\ by"; + # If $space is negative this inserts nothing. + print ' ' x $space if length($+{end}); + print "$+{end}\n"; + $replaced = 1; + } }ex || # Otherwise print line unaltered. diff --git a/src/truetype/module.mk b/src/truetype/module.mk index 2d8d39d1f..485ef05c2 100644 --- a/src/truetype/module.mk +++ b/src/truetype/module.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/truetype/rules.mk b/src/truetype/rules.mk index 2f6fecfc4..cfd6b3b2f 100644 --- a/src/truetype/rules.mk +++ b/src/truetype/rules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/truetype/truetype.c b/src/truetype/truetype.c index 41b6808a8..4232aca6e 100644 --- a/src/truetype/truetype.c +++ b/src/truetype/truetype.c @@ -4,7 +4,7 @@ * * FreeType TrueType driver component (body only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/truetype/ttdriver.c b/src/truetype/ttdriver.c index bf830b141..6fcfdb23e 100644 --- a/src/truetype/ttdriver.c +++ b/src/truetype/ttdriver.c @@ -4,7 +4,7 @@ * * TrueType font driver implementation (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -108,7 +108,7 @@ return error; } - FT_TRACE0(( "tt_property_set: missing property `%s'\n", + FT_TRACE2(( "tt_property_set: missing property `%s'\n", property_name )); return FT_THROW( Missing_Property ); } @@ -135,7 +135,7 @@ return error; } - FT_TRACE0(( "tt_property_get: missing property `%s'\n", + FT_TRACE2(( "tt_property_get: missing property `%s'\n", property_name )); return FT_THROW( Missing_Property ); } @@ -354,7 +354,16 @@ #endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ - FT_Request_Metrics( size->face, req ); + { + FT_Error err = FT_Request_Metrics( size->face, req ); + + + if ( err ) + { + error = err; + goto Exit; + } + } if ( FT_IS_SCALABLE( size->face ) ) { @@ -382,6 +391,7 @@ #endif } + Exit: return error; } diff --git a/src/truetype/ttdriver.h b/src/truetype/ttdriver.h index ee1438eb6..4e6d52d22 100644 --- a/src/truetype/ttdriver.h +++ b/src/truetype/ttdriver.h @@ -4,7 +4,7 @@ * * High-level TrueType driver interface (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/truetype/tterrors.h b/src/truetype/tterrors.h index efeafd3a1..0ce247e37 100644 --- a/src/truetype/tterrors.h +++ b/src/truetype/tterrors.h @@ -4,7 +4,7 @@ * * TrueType error codes (specification only). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/truetype/ttgload.c b/src/truetype/ttgload.c index 1dd319dcb..11968f6fd 100644 --- a/src/truetype/ttgload.c +++ b/src/truetype/ttgload.c @@ -4,7 +4,7 @@ * * TrueType Glyph Loader (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -197,10 +197,17 @@ } #endif /* TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY */ - if ( !loader->linear_def ) +#ifdef FT_CONFIG_OPTION_INCREMENTAL + /* With the incremental interface, these values are set by */ + /* a call to `tt_get_metrics_incremental'. */ + if ( face->root.internal->incremental_interface == NULL ) +#endif { - loader->linear_def = 1; - loader->linear = advance_width; + if ( !loader->linear_def ) + { + loader->linear_def = 1; + loader->linear = advance_width; + } } return FT_Err_Ok; @@ -210,8 +217,8 @@ #ifdef FT_CONFIG_OPTION_INCREMENTAL static void - tt_get_metrics_incr_overrides( TT_Loader loader, - FT_UInt glyph_index ) + tt_get_metrics_incremental( TT_Loader loader, + FT_UInt glyph_index ) { TT_Face face = loader->face; @@ -451,7 +458,7 @@ (void*)&load->exec->glyphIns, n_ins ); - load->exec->glyphSize = (FT_UShort)tmp; + load->exec->glyphSize = (FT_UInt)tmp; if ( error ) return error; @@ -736,12 +743,14 @@ subglyph->transform.xx / 65536.0, subglyph->transform.yy / 65536.0 )); else if ( subglyph->flags & WE_HAVE_A_2X2 ) - FT_TRACE7(( " scaling: xx=%f, yx=%f\n" - " xy=%f, yy=%f\n", + { + FT_TRACE7(( " scaling: xx=%f, yx=%f\n", subglyph->transform.xx / 65536.0, - subglyph->transform.yx / 65536.0, + subglyph->transform.yx / 65536.0 )); + FT_TRACE7(( " xy=%f, yy=%f\n", subglyph->transform.xy / 65536.0, subglyph->transform.yy / 65536.0 )); + } subglyph++; } @@ -1383,7 +1392,7 @@ FT_READ_USHORT( n_ins ) ) return error; - FT_TRACE5(( " Instructions size = %d\n", n_ins )); + FT_TRACE5(( " Instructions size = %hu\n", n_ins )); /* check it */ max_ins = loader->face->max_profile.maxSizeOfInstructions; @@ -1391,10 +1400,10 @@ { /* don't trust `maxSizeOfInstructions'; */ /* only do a rough safety check */ - if ( (FT_Int)n_ins > loader->byte_len ) + if ( n_ins > loader->byte_len ) { FT_TRACE1(( "TT_Process_Composite_Glyph:" - " too many instructions (%d) for glyph with length %d\n", + " too many instructions (%hu) for glyph with length %u\n", n_ins, loader->byte_len )); return FT_THROW( Too_Many_Hints ); } @@ -1677,7 +1686,7 @@ FT_ZERO( &inc_stream ); FT_Stream_OpenMemory( &inc_stream, glyph_data.pointer, - (FT_ULong)glyph_data.length ); + glyph_data.length ); loader->stream = &inc_stream; } @@ -1685,8 +1694,7 @@ #endif /* FT_CONFIG_OPTION_INCREMENTAL */ - offset = tt_face_get_location( face, glyph_index, - (FT_UInt*)&loader->byte_len ); + offset = tt_face_get_location( face, glyph_index, &loader->byte_len ); if ( loader->byte_len > 0 ) { @@ -1705,7 +1713,7 @@ error = face->access_glyph_frame( loader, glyph_index, face->glyf_offset + offset, - (FT_UInt)loader->byte_len ); + loader->byte_len ); if ( error ) goto Exit; @@ -1739,13 +1747,11 @@ if ( loader->byte_len == 0 || loader->n_contours == 0 ) { - /* must initialize points before (possibly) overriding */ - /* glyph metrics from the incremental interface */ - tt_loader_set_pp( loader ); - #ifdef FT_CONFIG_OPTION_INCREMENTAL - tt_get_metrics_incr_overrides( loader, glyph_index ); + tt_get_metrics_incremental( loader, glyph_index ); #endif + tt_loader_set_pp( loader ); + #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT @@ -1828,13 +1834,11 @@ goto Exit; } - /* must initialize phantom points before (possibly) overriding */ - /* glyph metrics from the incremental interface */ - tt_loader_set_pp( loader ); - #ifdef FT_CONFIG_OPTION_INCREMENTAL - tt_get_metrics_incr_overrides( loader, glyph_index ); + tt_get_metrics_incremental( loader, glyph_index ); #endif + tt_loader_set_pp( loader ); + /***********************************************************************/ /***********************************************************************/ @@ -1844,7 +1848,7 @@ /* (which consists of 10 bytes) */ error = face->access_glyph_frame( loader, glyph_index, face->glyf_offset + offset + 10, - (FT_UInt)loader->byte_len - 10 ); + loader->byte_len - 10 ); if ( error ) goto Exit; @@ -1898,7 +1902,7 @@ /* clear the nodes filled by sibling chains */ node = ft_list_get_node_at( &loader->composites, recurse_count ); for ( node2 = node; node2; node2 = node2->next ) - node2->data = (void*)FT_ULONG_MAX; + node2->data = (void*)-1; /* check whether we already have a composite glyph with this index */ if ( FT_List_Find( &loader->composites, @@ -1915,7 +1919,7 @@ else { - if ( FT_NEW( node ) ) + if ( FT_QNEW( node ) ) goto Exit; node->data = FT_UINT_TO_POINTER( glyph_index ); FT_List_Add( &loader->composites, node ); @@ -2100,7 +2104,7 @@ FT_UInt num_base_subgs = gloader->base.num_subglyphs; FT_Stream old_stream = loader->stream; - FT_Int old_byte_len = loader->byte_len; + FT_UInt old_byte_len = loader->byte_len; FT_GlyphLoader_Add( gloader ); @@ -2713,6 +2717,9 @@ error = tt_size_run_prep( size, pedantic ); if ( error ) return error; + error = TT_Load_Context( exec, face, size ); + if ( error ) + return error; } /* check whether the cvt program has disabled hinting */ diff --git a/src/truetype/ttgload.h b/src/truetype/ttgload.h index 8f72cd558..78fdeaa73 100644 --- a/src/truetype/ttgload.h +++ b/src/truetype/ttgload.h @@ -4,7 +4,7 @@ * * TrueType Glyph Loader (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/truetype/ttgxvar.c b/src/truetype/ttgxvar.c index b462263de..7f2db0cbd 100644 --- a/src/truetype/ttgxvar.c +++ b/src/truetype/ttgxvar.c @@ -4,7 +4,7 @@ * * TrueType GX Font Variation loader * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, Werner Lemberg, and George Williams. * * This file is part of the FreeType project, and may only be used, @@ -178,7 +178,7 @@ /* in the nested loops below we increase `i' twice; */ /* it is faster to simply allocate one more slot */ /* than to add another test within the loop */ - if ( FT_NEW_ARRAY( points, n + 1 ) ) + if ( FT_QNEW_ARRAY( points, n + 1 ) ) return NULL; *point_cnt = n; @@ -264,55 +264,80 @@ FT_Fixed *deltas = NULL; FT_UInt runcnt, cnt; FT_UInt i, j; + FT_UInt bytes_used; FT_Memory memory = stream->memory; FT_Error error = FT_Err_Ok; FT_UNUSED( error ); - if ( delta_cnt > size ) - { - FT_TRACE1(( "ft_var_readpackeddeltas: number of points too large\n" )); + if ( FT_QNEW_ARRAY( deltas, delta_cnt ) ) return NULL; - } - if ( FT_NEW_ARRAY( deltas, delta_cnt ) ) - return NULL; + i = 0; + bytes_used = 0; - i = 0; - while ( i < delta_cnt ) + while ( i < delta_cnt && bytes_used < size ) { runcnt = FT_GET_BYTE(); cnt = runcnt & GX_DT_DELTA_RUN_COUNT_MASK; + bytes_used++; + if ( runcnt & GX_DT_DELTAS_ARE_ZERO ) { - /* `runcnt' zeroes get added */ + /* `cnt` + 1 zeroes get added */ for ( j = 0; j <= cnt && i < delta_cnt; j++ ) deltas[i++] = 0; } else if ( runcnt & GX_DT_DELTAS_ARE_WORDS ) { - /* `runcnt' shorts from the stack */ + /* `cnt` + 1 shorts from the stack */ + bytes_used += 2 * ( cnt + 1 ); + if ( bytes_used > size ) + { + FT_TRACE1(( "ft_var_readpackeddeltas:" + " number of short deltas too large\n" )); + goto Fail; + } + for ( j = 0; j <= cnt && i < delta_cnt; j++ ) deltas[i++] = FT_intToFixed( FT_GET_SHORT() ); } else { - /* `runcnt' signed bytes from the stack */ + /* `cnt` + 1 signed bytes from the stack */ + bytes_used += cnt + 1; + if ( bytes_used > size ) + { + FT_TRACE1(( "ft_var_readpackeddeltas:" + " number of byte deltas too large\n" )); + goto Fail; + } + for ( j = 0; j <= cnt && i < delta_cnt; j++ ) deltas[i++] = FT_intToFixed( FT_GET_CHAR() ); } if ( j <= cnt ) { - /* bad format */ - FT_FREE( deltas ); - return NULL; + FT_TRACE1(( "ft_var_readpackeddeltas:" + " number of deltas too large\n" )); + goto Fail; } } + if ( i < delta_cnt ) + { + FT_TRACE1(( "ft_var_readpackeddeltas: not enough deltas\n" )); + goto Fail; + } + return deltas; + + Fail: + FT_FREE( deltas ); + return NULL; } @@ -371,12 +396,13 @@ if ( axisCount != (FT_Long)blend->mmvar->num_axis ) { - FT_TRACE2(( "ft_var_load_avar: number of axes in `avar' and `fvar'\n" - " table are different\n" )); + FT_TRACE2(( "ft_var_load_avar:" + " number of axes in `avar' and `fvar'\n" )); + FT_TRACE2(( " table are different\n" )); goto Exit; } - if ( FT_NEW_ARRAY( blend->avar_segment, axisCount ) ) + if ( FT_QNEW_ARRAY( blend->avar_segment, axisCount ) ) goto Exit; segment = &blend->avar_segment[0]; @@ -385,8 +411,8 @@ FT_TRACE5(( " axis %d:\n", i )); segment->pairCount = FT_GET_USHORT(); - if ( (FT_ULong)segment->pairCount * 4 > table_len || - FT_NEW_ARRAY( segment->correspondence, segment->pairCount ) ) + if ( (FT_ULong)segment->pairCount * 4 > table_len || + FT_QNEW_ARRAY( segment->correspondence, segment->pairCount ) ) { /* Failure. Free everything we have done so far. We must do */ /* it right now since loading the `avar' table is optional. */ @@ -431,7 +457,8 @@ FT_UShort format; FT_ULong region_offset; FT_UInt i, j, k; - FT_UInt shortDeltaCount; + FT_UInt wordDeltaCount; + FT_Bool long_words; GX_Blend blend = face->blend; GX_ItemVarData varData; @@ -466,7 +493,7 @@ /* make temporary copy of item variation data offsets; */ /* we will parse region list first, then come back */ - if ( FT_NEW_ARRAY( dataOffsetArray, itemStore->dataCount ) ) + if ( FT_QNEW_ARRAY( dataOffsetArray, itemStore->dataCount ) ) goto Exit; for ( i = 0; i < itemStore->dataCount; i++ ) @@ -486,13 +513,22 @@ if ( itemStore->axisCount != (FT_Long)blend->mmvar->num_axis ) { FT_TRACE2(( "ft_var_load_item_variation_store:" - " number of axes in item variation store\n" - " " + " number of axes in item variation store\n" )); + FT_TRACE2(( " " " and `fvar' table are different\n" )); error = FT_THROW( Invalid_Table ); goto Exit; } + /* new constraint in OpenType 1.8.4 */ + if ( itemStore->regionCount >= 32768U ) + { + FT_TRACE2(( "ft_var_load_item_variation_store:" + " too many variation region tables\n" )); + error = FT_THROW( Invalid_Table ); + goto Exit; + } + if ( FT_NEW_ARRAY( itemStore->varRegionList, itemStore->regionCount ) ) goto Exit; @@ -537,15 +573,18 @@ goto Exit; if ( FT_READ_USHORT( varData->itemCount ) || - FT_READ_USHORT( shortDeltaCount ) || + FT_READ_USHORT( wordDeltaCount ) || FT_READ_USHORT( varData->regionIdxCount ) ) goto Exit; + long_words = !!( wordDeltaCount & 0x8000 ); + wordDeltaCount &= 0x7FFF; + /* check some data consistency */ - if ( shortDeltaCount > varData->regionIdxCount ) + if ( wordDeltaCount > varData->regionIdxCount ) { FT_TRACE2(( "bad short count %d or region count %d\n", - shortDeltaCount, + wordDeltaCount, varData->regionIdxCount )); error = FT_THROW( Invalid_Table ); goto Exit; @@ -581,39 +620,52 @@ /* Parse delta set. */ /* */ - /* On input, deltas are (shortDeltaCount + regionIdxCount) bytes */ - /* each; on output, deltas are expanded to `regionIdxCount' shorts */ - /* each. */ + /* On input, deltas are (wordDeltaCount + regionIdxCount) bytes */ + /* each if `long_words` isn't set, and twice as much otherwise. */ + /* */ + /* On output, deltas are expanded to `regionIdxCount` shorts each. */ if ( FT_NEW_ARRAY( varData->deltaSet, varData->regionIdxCount * varData->itemCount ) ) goto Exit; - /* the delta set is stored as a 2-dimensional array of shorts; */ - /* sign-extend signed bytes to signed shorts */ - for ( j = 0; j < varData->itemCount * varData->regionIdxCount; ) + /* the delta set is stored as a 2-dimensional array of shorts */ + if ( long_words ) + { + /* new in OpenType 1.9, currently for 'COLR' table only; */ + /* the deltas are interpreted as 16.16 fixed-point scaling values */ + + /* not supported yet */ + + error = FT_THROW( Invalid_Table ); + goto Exit; + } + else { - for ( k = 0; k < shortDeltaCount; k++, j++ ) + for ( j = 0; j < varData->itemCount * varData->regionIdxCount; ) { - /* read the short deltas */ - FT_Short delta; + for ( k = 0; k < wordDeltaCount; k++, j++ ) + { + /* read the short deltas */ + FT_Short delta; - if ( FT_READ_SHORT( delta ) ) - goto Exit; + if ( FT_READ_SHORT( delta ) ) + goto Exit; - varData->deltaSet[j] = delta; - } + varData->deltaSet[j] = delta; + } - for ( ; k < varData->regionIdxCount; k++, j++ ) - { - /* read the (signed) byte deltas */ - FT_Char delta; + for ( ; k < varData->regionIdxCount; k++, j++ ) + { + /* read the (signed) byte deltas */ + FT_Char delta; - if ( FT_READ_CHAR( delta ) ) - goto Exit; + if ( FT_READ_CHAR( delta ) ) + goto Exit; - varData->deltaSet[j] = delta; + varData->deltaSet[j] = delta; + } } } } @@ -629,37 +681,66 @@ ft_var_load_delta_set_index_mapping( TT_Face face, FT_ULong offset, GX_DeltaSetIdxMap map, - GX_ItemVarStore itemStore ) + GX_ItemVarStore itemStore, + FT_ULong table_len ) { FT_Stream stream = FT_FACE_STREAM( face ); FT_Memory memory = stream->memory; - FT_Error error; + FT_Error error; - FT_UShort format; - FT_UInt entrySize; - FT_UInt innerBitCount; - FT_UInt innerIndexMask; - FT_UInt i, j; + FT_Byte format; + FT_Byte entryFormat; + FT_UInt entrySize; + FT_UInt innerBitCount; + FT_UInt innerIndexMask; + FT_ULong i; + FT_UInt j; - if ( FT_STREAM_SEEK( offset ) || - FT_READ_USHORT( format ) || - FT_READ_USHORT( map->mapCount ) ) + if ( FT_STREAM_SEEK( offset ) || + FT_READ_BYTE( format ) || + FT_READ_BYTE( entryFormat ) ) goto Exit; - if ( format & 0xFFC0 ) + if ( format == 0 ) + { + if ( FT_READ_USHORT( map->mapCount ) ) + goto Exit; + } + else if ( format == 1 ) /* new in OpenType 1.9 */ + { + if ( FT_READ_ULONG( map->mapCount ) ) + goto Exit; + } + else { FT_TRACE2(( "bad map format %d\n", format )); error = FT_THROW( Invalid_Table ); goto Exit; } + if ( entryFormat & 0xC0 ) + { + FT_TRACE2(( "bad entry format %d\n", format )); + error = FT_THROW( Invalid_Table ); + goto Exit; + } + /* bytes per entry: 1, 2, 3, or 4 */ - entrySize = ( ( format & 0x0030 ) >> 4 ) + 1; - innerBitCount = ( format & 0x000F ) + 1; + entrySize = ( ( entryFormat & 0x30 ) >> 4 ) + 1; + innerBitCount = ( entryFormat & 0x0F ) + 1; innerIndexMask = ( 1 << innerBitCount ) - 1; + /* rough sanity check */ + if ( map->mapCount * entrySize > table_len ) + { + FT_TRACE1(( "ft_var_load_delta_set_index_mapping:" + " invalid number of delta-set index mappings\n" )); + error = FT_THROW( Invalid_Table ); + goto Exit; + } + if ( FT_NEW_ARRAY( map->innerIndex, map->mapCount ) ) goto Exit; @@ -688,7 +769,7 @@ if ( outerIndex >= itemStore->dataCount ) { - FT_TRACE2(( "outerIndex[%d] == %d out of range\n", + FT_TRACE2(( "outerIndex[%ld] == %d out of range\n", i, outerIndex )); error = FT_THROW( Invalid_Table ); @@ -701,7 +782,7 @@ if ( innerIndex >= itemStore->varData[outerIndex].itemCount ) { - FT_TRACE2(( "innerIndex[%d] == %d out of range\n", + FT_TRACE2(( "innerIndex[%ld] == %d out of range\n", i, innerIndex )); error = FT_THROW( Invalid_Table ); @@ -826,7 +907,8 @@ face, table_offset + widthMap_offset, &table->widthMap, - &table->itemStore ); + &table->itemStore, + table_len ); if ( error ) goto Exit; } @@ -1515,8 +1597,9 @@ if ( gvar_head.axisCount != (FT_UShort)blend->mmvar->num_axis ) { - FT_TRACE1(( "ft_var_load_gvar: number of axes in `gvar' and `cvar'\n" - " table are different\n" )); + FT_TRACE1(( "ft_var_load_gvar:" + " number of axes in `gvar' and `cvar'\n" )); + FT_TRACE1(( " table are different\n" )); error = FT_THROW( Invalid_Table ); goto Exit; } @@ -1558,7 +1641,7 @@ goto Exit; /* offsets (one more offset than glyphs, to mark size of last) */ - if ( FT_NEW_ARRAY( blend->glyphoffsets, gvar_head.glyphCount + 1 ) ) + if ( FT_QNEW_ARRAY( blend->glyphoffsets, gvar_head.glyphCount + 1 ) ) goto Fail2; if ( gvar_head.flags & 1 ) @@ -1637,8 +1720,8 @@ goto Fail; } - if ( FT_NEW_ARRAY( blend->tuplecoords, - gvar_head.axisCount * gvar_head.globalCoordCount ) ) + if ( FT_QNEW_ARRAY( blend->tuplecoords, + gvar_head.axisCount * gvar_head.globalCoordCount ) ) goto Fail2; for ( i = 0; i < gvar_head.globalCoordCount; i++ ) @@ -1841,25 +1924,22 @@ FT_TRACE5(( " %d: %.5f\n", i, coord / 65536.0 )); if ( coord > a->maximum || coord < a->minimum ) { - FT_TRACE1(( - "ft_var_to_normalized: design coordinate %.5f\n" - " is out of range [%.5f;%.5f]; clamping\n", - coord / 65536.0, - a->minimum / 65536.0, - a->maximum / 65536.0 )); - - if ( coord > a->maximum ) - coord = a->maximum; - else - coord = a->minimum; + FT_TRACE1(( "ft_var_to_normalized: design coordinate %.5f\n", + coord / 65536.0 )); + FT_TRACE1(( " is out of range [%.5f;%.5f];" + " clamping\n", + a->minimum / 65536.0, + a->maximum / 65536.0 )); } - if ( coord < a->def ) - normalized[i] = -FT_DivFix( SUB_LONG( coord, a->def ), - SUB_LONG( a->minimum, a->def ) ); - else if ( coord > a->def ) - normalized[i] = FT_DivFix( SUB_LONG( coord, a->def ), + if ( coord > a->def ) + normalized[i] = coord >= a->maximum ? 0x10000L : + FT_DivFix( SUB_LONG( coord, a->def ), SUB_LONG( a->maximum, a->def ) ); + else if ( coord < a->def ) + normalized[i] = coord <= a->minimum ? -0x10000L : + FT_DivFix( SUB_LONG( coord, a->def ), + SUB_LONG( a->def, a->minimum ) ); else normalized[i] = 0; } @@ -2049,7 +2129,7 @@ FT_Var_Axis* a; FT_Fixed* c; FT_Var_Named_Style* ns; - GX_FVar_Head fvar_head; + GX_FVar_Head fvar_head = { 0, 0, 0, 0, 0, 0 }; FT_Bool usePsName = 0; FT_UInt num_instances; FT_UInt num_axes; @@ -2115,8 +2195,8 @@ if ( FT_SET_ERROR( face->goto_table( face, TTAG_CFF2, stream, &table_len ) ) ) { - FT_TRACE1(( "\n" - "TT_Get_MM_Var: `gvar' or `CFF2' table is missing\n" )); + FT_TRACE1(( "\n" )); + FT_TRACE1(( "TT_Get_MM_Var: `gvar' or `CFF2' table is missing\n" )); goto Exit; } } @@ -2544,17 +2624,17 @@ num_coords = mmvar->num_axis; } - FT_TRACE5(( "TT_Set_MM_Blend:\n" - " normalized design coordinates:\n" )); + FT_TRACE5(( "TT_Set_MM_Blend:\n" )); + FT_TRACE5(( " normalized design coordinates:\n" )); for ( i = 0; i < num_coords; i++ ) { FT_TRACE5(( " %.5f\n", coords[i] / 65536.0 )); if ( coords[i] < -0x00010000L || coords[i] > 0x00010000L ) { - FT_TRACE1(( "TT_Set_MM_Blend: normalized design coordinate %.5f\n" - " is out of range [-1;1]\n", + FT_TRACE1(( "TT_Set_MM_Blend: normalized design coordinate %.5f\n", coords[i] / 65536.0 )); + FT_TRACE1(( " is out of range [-1;1]\n" )); error = FT_THROW( Invalid_Argument ); goto Exit; } @@ -2652,9 +2732,10 @@ } blend->num_axis = mmvar->num_axis; - FT_MEM_COPY( blend->normalizedcoords, - coords, - num_coords * sizeof ( FT_Fixed ) ); + if ( coords ) + FT_MEM_COPY( blend->normalizedcoords, + coords, + num_coords * sizeof ( FT_Fixed ) ); if ( set_design_coords ) ft_var_to_design( face, @@ -2952,8 +3033,8 @@ if ( !face->blend->avar_loaded ) ft_var_load_avar( face ); - FT_TRACE5(( "TT_Set_Var_Design:\n" - " normalized design coordinates:\n" )); + FT_TRACE5(( "TT_Set_Var_Design:\n" )); + FT_TRACE5(( " normalized design coordinates:\n" )); ft_var_to_normalized( face, num_coords, blend->coords, normalized ); error = tt_set_mm_blend( face, mmvar->num_axis, normalized, 0 ); @@ -3152,6 +3233,8 @@ /*************************************************************************/ +#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER + static FT_Error tt_cvt_ready_iterator( FT_ListNode node, void* user ) @@ -3166,6 +3249,9 @@ return FT_Err_Ok; } +#endif /* TT_CONFIG_OPTION_BYTECODE_INTERPRETER */ + + /************************************************************************** * @@ -3194,6 +3280,8 @@ tt_face_vary_cvt( TT_Face face, FT_Stream stream ) { +#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER + FT_Error error; FT_Memory memory = stream->memory; @@ -3229,16 +3317,16 @@ if ( !blend ) { - FT_TRACE2(( "\n" - "tt_face_vary_cvt: no blend specified\n" )); + FT_TRACE2(( "\n" )); + FT_TRACE2(( "tt_face_vary_cvt: no blend specified\n" )); error = FT_Err_Ok; goto Exit; } if ( !face->cvt ) { - FT_TRACE2(( "\n" - "tt_face_vary_cvt: no `cvt ' table\n" )); + FT_TRACE2(( "\n" )); + FT_TRACE2(( "tt_face_vary_cvt: no `cvt ' table\n" )); error = FT_Err_Ok; goto Exit; } @@ -3397,9 +3485,7 @@ point_count == 0 ? face->cvt_size : point_count ); - if ( !points || - !deltas || - ( localpoints == ALL_POINTS && point_count != face->cvt_size ) ) + if ( !points || !deltas ) ; /* failure, ignore it */ else if ( localpoints == ALL_POINTS ) @@ -3514,6 +3600,16 @@ NULL ); return error; + +#else /* !TT_CONFIG_OPTION_BYTECODE_INTERPRETER */ + + FT_UNUSED( face ); + FT_UNUSED( stream ); + + return FT_Err_Ok; + +#endif /* !TT_CONFIG_OPTION_BYTECODE_INTERPRETER */ + } diff --git a/src/truetype/ttgxvar.h b/src/truetype/ttgxvar.h index 26e89bcf7..ded9ea1d6 100644 --- a/src/truetype/ttgxvar.h +++ b/src/truetype/ttgxvar.h @@ -4,7 +4,7 @@ * * TrueType GX Font Variation loader (specification) * - * Copyright (C) 2004-2020 by + * Copyright (C) 2004-2021 by * David Turner, Robert Wilhelm, Werner Lemberg and George Williams. * * This file is part of the FreeType project, and may only be used, @@ -106,9 +106,9 @@ FT_BEGIN_HEADER typedef struct GX_DeltaSetIdxMapRec_ { - FT_UInt mapCount; - FT_UInt* outerIndex; /* indices to item var data */ - FT_UInt* innerIndex; /* indices to delta set */ + FT_ULong mapCount; + FT_UInt* outerIndex; /* indices to item var data */ + FT_UInt* innerIndex; /* indices to delta set */ } GX_DeltaSetIdxMapRec, *GX_DeltaSetIdxMap; diff --git a/src/truetype/ttinterp.c b/src/truetype/ttinterp.c index 0c3cb10ae..731095ed0 100644 --- a/src/truetype/ttinterp.c +++ b/src/truetype/ttinterp.c @@ -4,7 +4,7 @@ * * TrueType bytecode interpreter (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -251,6 +251,14 @@ FT_FREE( exec->stack ); exec->stackSize = 0; + /* free glyf cvt working area */ + FT_FREE( exec->glyfCvt ); + exec->glyfCvtSize = 0; + + /* free glyf storage working area */ + FT_FREE( exec->glyfStorage ); + exec->glyfStoreSize = 0; + /* free call stack */ FT_FREE( exec->callStack ); exec->callSize = 0; @@ -270,64 +278,6 @@ /************************************************************************** * * @Function: - * Init_Context - * - * @Description: - * Initializes a context object. - * - * @Input: - * memory :: - * A handle to the parent memory object. - * - * @InOut: - * exec :: - * A handle to the target execution context. - * - * @Return: - * FreeType error code. 0 means success. - */ - static FT_Error - Init_Context( TT_ExecContext exec, - FT_Memory memory ) - { - FT_Error error; - - - FT_TRACE1(( "Init_Context: new object at %p\n", (void *)exec )); - - exec->memory = memory; - exec->callSize = 32; - - if ( FT_NEW_ARRAY( exec->callStack, exec->callSize ) ) - goto Fail_Memory; - - /* all values in the context are set to 0 already, but this is */ - /* here as a remainder */ - exec->maxPoints = 0; - exec->maxContours = 0; - - exec->stackSize = 0; - exec->glyphSize = 0; - - exec->stack = NULL; - exec->glyphIns = NULL; - - exec->face = NULL; - exec->size = NULL; - - return FT_Err_Ok; - - Fail_Memory: - FT_ERROR(( "Init_Context: not enough memory for %p\n", (void *)exec )); - TT_Done_Context( exec ); - - return error; - } - - - /************************************************************************** - * - * @Function: * Update_Max * * @Description: @@ -367,7 +317,7 @@ if ( *size < new_max ) { - if ( FT_REALLOC( *pbuff, *size * multiplier, new_max * multiplier ) ) + if ( FT_QREALLOC( *pbuff, *size * multiplier, new_max * multiplier ) ) return error; *size = new_max; } @@ -400,6 +350,8 @@ * * @Note: * Only the glyph loader and debugger should call this function. + * + * Note that not all members of `TT_ExecContext` get initialized. */ FT_LOCAL_DEF( FT_Error ) TT_Load_Context( TT_ExecContext exec, @@ -464,13 +416,13 @@ if ( error ) return error; - tmp = exec->glyphSize; + tmp = (FT_ULong)exec->glyphSize; error = Update_Max( exec->memory, &tmp, sizeof ( FT_Byte ), (void*)&exec->glyphIns, maxp->maxSizeOfInstructions ); - exec->glyphSize = (FT_UShort)tmp; + exec->glyphSize = (FT_UInt)tmp; if ( error ) return error; @@ -609,19 +561,19 @@ memory = driver->root.root.memory; - /* allocate object */ + /* allocate object and zero everything inside */ if ( FT_NEW( exec ) ) goto Fail; - /* initialize it; in case of error this deallocates `exec' too */ - error = Init_Context( exec, memory ); - if ( error ) - goto Fail; + /* create callStack here, other allocations delayed */ + exec->memory = memory; + exec->callSize = 32; - return exec; + if ( FT_QNEW_ARRAY( exec->callStack, exec->callSize ) ) + FT_FREE( exec ); Fail: - return NULL; + return exec; } @@ -1572,11 +1524,36 @@ } + static void + Modify_CVT_Check( TT_ExecContext exc ) + { + /* TT_RunIns sets origCvt and restores cvt to origCvt when done. */ + if ( exc->iniRange == tt_coderange_glyph && + exc->cvt == exc->origCvt ) + { + exc->error = Update_Max( exc->memory, + &exc->glyfCvtSize, + sizeof ( FT_Long ), + (void*)&exc->glyfCvt, + exc->cvtSize ); + if ( exc->error ) + return; + + FT_ARRAY_COPY( exc->glyfCvt, exc->cvt, exc->glyfCvtSize ); + exc->cvt = exc->glyfCvt; + } + } + + FT_CALLBACK_DEF( void ) Write_CVT( TT_ExecContext exc, FT_ULong idx, FT_F26Dot6 value ) { + Modify_CVT_Check( exc ); + if ( exc->error ) + return; + exc->cvt[idx] = value; } @@ -1586,6 +1563,10 @@ FT_ULong idx, FT_F26Dot6 value ) { + Modify_CVT_Check( exc ); + if ( exc->error ) + return; + exc->cvt[idx] = FT_DivFix( value, Current_Ratio( exc ) ); } @@ -1595,6 +1576,10 @@ FT_ULong idx, FT_F26Dot6 value ) { + Modify_CVT_Check( exc ); + if ( exc->error ) + return; + exc->cvt[idx] = ADD_LONG( exc->cvt[idx], value ); } @@ -1604,6 +1589,10 @@ FT_ULong idx, FT_F26Dot6 value ) { + Modify_CVT_Check( exc ); + if ( exc->error ) + return; + exc->cvt[idx] = ADD_LONG( exc->cvt[idx], FT_DivFix( value, Current_Ratio( exc ) ) ); } @@ -3125,7 +3114,30 @@ ARRAY_BOUND_ERROR; } else + { + /* TT_RunIns sets origStorage and restores storage to origStorage */ + /* when done. */ + if ( exc->iniRange == tt_coderange_glyph && + exc->storage == exc->origStorage ) + { + FT_ULong tmp = (FT_ULong)exc->glyfStoreSize; + + + exc->error = Update_Max( exc->memory, + &tmp, + sizeof ( FT_Long ), + (void*)&exc->glyfStorage, + exc->storeSize ); + exc->glyfStoreSize = (FT_UShort)tmp; + if ( exc->error ) + return; + + FT_ARRAY_COPY( exc->glyfStorage, exc->storage, exc->glyfStoreSize ); + exc->storage = exc->glyfStorage; + } + exc->storage[I] = args[1]; + } } @@ -3525,7 +3537,7 @@ return; } - exc->IP += args[0]; + exc->IP = ADD_LONG( exc->IP, args[0] ); if ( exc->IP < 0 || ( exc->callTop > 0 && exc->IP > exc->callStack[exc->callTop - 1].Def->end ) ) @@ -3697,7 +3709,7 @@ /* FDEF is only allowed in `prep' or `fpgm' */ - if ( exc->curRange == tt_coderange_glyph ) + if ( exc->iniRange == tt_coderange_glyph ) { exc->error = FT_THROW( DEF_In_Glyf_Bytecode ); return; @@ -3771,7 +3783,7 @@ if ( opcode_pointer[i] == opcode_size[i] ) { - FT_TRACE6(( "sph: Function %d, opcode ptrn: %d, %s %s\n", + FT_TRACE6(( "sph: Function %d, opcode ptrn: %ld, %s %s\n", i, n, exc->face->root.family_name, exc->face->root.style_name )); @@ -4133,7 +4145,7 @@ /* we enable IDEF only in `prep' or `fpgm' */ - if ( exc->curRange == tt_coderange_glyph ) + if ( exc->iniRange == tt_coderange_glyph ) { exc->error = FT_THROW( DEF_In_Glyf_Bytecode ); return; @@ -4362,7 +4374,7 @@ if ( ( opcode & 1 ) != 0 ) { - C = B; /* counter clockwise rotation */ + C = B; /* counter-clockwise rotation */ B = A; A = NEG_LONG( C ); } @@ -4991,9 +5003,9 @@ #ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY /* Disable Type 2 Vacuform Rounds - e.g. Arial Narrow */ - if ( SUBPIXEL_HINTING_INFINALITY && - exc->ignore_x_mode && - FT_ABS( D ) == 64 ) + if ( SUBPIXEL_HINTING_INFINALITY && + exc->ignore_x_mode && + ( D < 0 ? NEG_LONG( D ) : D ) == 64 ) D += 1; #endif /* TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY */ @@ -5050,7 +5062,7 @@ if ( ( opcode & 1 ) != 0 ) { - C = B; /* counter clockwise rotation */ + C = B; /* counter-clockwise rotation */ B = A; A = NEG_LONG( C ); } @@ -5074,7 +5086,7 @@ if ( ( opcode & 1 ) != 0 ) { - C = B; /* counter clockwise rotation */ + C = B; /* counter-clockwise rotation */ B = A; A = NEG_LONG( C ); } @@ -7781,8 +7793,8 @@ if ( num_twilight_points > 0xFFFFU ) num_twilight_points = 0xFFFFU; - FT_TRACE5(( "TT_RunIns: Resetting number of twilight points\n" - " from %d to the more reasonable value %ld\n", + FT_TRACE5(( "TT_RunIns: Resetting number of twilight points\n" )); + FT_TRACE5(( " from %d to the more reasonable value %ld\n", exc->twilight.n_points, num_twilight_points )); exc->twilight.n_points = (FT_UShort)num_twilight_points; @@ -7842,6 +7854,10 @@ exc->func_move_cvt = Move_CVT; } + exc->origCvt = exc->cvt; + exc->origStorage = exc->storage; + exc->iniRange = exc->curRange; + Compute_Funcs( exc ); Compute_Round( exc, (FT_Byte)exc->GS.round_state ); @@ -7850,6 +7866,7 @@ exc->opcode = exc->code[exc->IP]; #ifdef FT_DEBUG_LEVEL_TRACE + if ( ft_trace_levels[trace_ttinterp] >= 6 ) { FT_Long cnt = FT_MIN( 8, exc->top ); FT_Long n; @@ -8566,8 +8583,10 @@ /* increment instruction counter and check if we didn't */ /* run this program for too long (e.g. infinite loops). */ - if ( ++ins_counter > TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES ) - return FT_THROW( Execution_Too_Long ); + if ( ++ins_counter > TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES ) { + exc->error = FT_THROW( Execution_Too_Long ); + goto LErrorLabel_; + } LSuiteLabel_: if ( exc->IP >= exc->codeSize ) @@ -8586,6 +8605,10 @@ FT_TRACE4(( " %ld instruction%s executed\n", ins_counter, ins_counter == 1 ? "" : "s" )); + + exc->cvt = exc->origCvt; + exc->storage = exc->origStorage; + return FT_Err_Ok; LErrorCodeOverflow_: @@ -8595,6 +8618,9 @@ if ( exc->error && !exc->instruction_trap ) FT_TRACE1(( " The interpreter returned error 0x%x\n", exc->error )); + exc->cvt = exc->origCvt; + exc->storage = exc->origStorage; + return exc->error; } diff --git a/src/truetype/ttinterp.h b/src/truetype/ttinterp.h index 6a83705a6..9c01ec83c 100644 --- a/src/truetype/ttinterp.h +++ b/src/truetype/ttinterp.h @@ -4,7 +4,7 @@ * * TrueType bytecode interpreter (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -144,37 +144,41 @@ FT_BEGIN_HEADER * * The main structure for the interpreter which collects all necessary * variables and states. + * + * Members that are initialized by `TT_Load_Context` are marked with '!'. + * Members that are initialized by `TT_Run_Context` are marked with '@'. */ typedef struct TT_ExecContextRec_ { - TT_Face face; - TT_Size size; + TT_Face face; /* ! */ + TT_Size size; /* ! */ FT_Memory memory; /* instructions state */ FT_Error error; /* last execution error */ - FT_Long top; /* top of exec. stack */ + FT_Long top; /* @ top of exec. stack */ - FT_Long stackSize; /* size of exec. stack */ - FT_Long* stack; /* current exec. stack */ + FT_Long stackSize; /* ! size of exec. stack */ + FT_Long* stack; /* ! current exec. stack */ FT_Long args; - FT_Long new_top; /* new top after exec. */ + FT_Long new_top; /* new top after exec. */ - TT_GlyphZoneRec zp0, /* zone records */ - zp1, - zp2, - pts, - twilight; + TT_GlyphZoneRec zp0, /* @! zone records */ + zp1, /* @! */ + zp2, /* @! */ + pts, /* ! */ + twilight; /* ! */ - FT_Long pointSize; /* in 26.6 format */ - FT_Size_Metrics metrics; - TT_Size_Metrics tt_metrics; /* size metrics */ + FT_Long pointSize; /* ! in 26.6 format */ + FT_Size_Metrics metrics; /* ! */ + TT_Size_Metrics tt_metrics; /* ! size metrics */ - TT_GraphicsState GS; /* current graphics state */ + TT_GraphicsState GS; /* !@ current graphics state */ + FT_Int iniRange; /* initial code range number */ FT_Int curRange; /* current code range number */ FT_Byte* code; /* current code range */ FT_Long IP; /* current instruction pointer */ @@ -185,43 +189,49 @@ FT_BEGIN_HEADER FT_Bool step_ins; /* true if the interpreter must */ /* increment IP after ins. exec */ - FT_ULong cvtSize; - FT_Long* cvt; + FT_ULong cvtSize; /* ! */ + FT_Long* cvt; /* ! */ + FT_ULong glyfCvtSize; + FT_Long* glyfCvt; /* cvt working copy for glyph */ + FT_Long* origCvt; - FT_UInt glyphSize; /* glyph instructions buffer size */ - FT_Byte* glyphIns; /* glyph instructions buffer */ + FT_UInt glyphSize; /* ! glyph instructions buffer size */ + FT_Byte* glyphIns; /* ! glyph instructions buffer */ - FT_UInt numFDefs; /* number of function defs */ - FT_UInt maxFDefs; /* maximum number of function defs */ - TT_DefArray FDefs; /* table of FDefs entries */ + FT_UInt numFDefs; /* ! number of function defs */ + FT_UInt maxFDefs; /* ! maximum number of function defs */ + TT_DefArray FDefs; /* table of FDefs entries */ - FT_UInt numIDefs; /* number of instruction defs */ - FT_UInt maxIDefs; /* maximum number of ins defs */ - TT_DefArray IDefs; /* table of IDefs entries */ + FT_UInt numIDefs; /* ! number of instruction defs */ + FT_UInt maxIDefs; /* ! maximum number of ins defs */ + TT_DefArray IDefs; /* table of IDefs entries */ - FT_UInt maxFunc; /* maximum function index */ - FT_UInt maxIns; /* maximum instruction index */ + FT_UInt maxFunc; /* ! maximum function index */ + FT_UInt maxIns; /* ! maximum instruction index */ - FT_Int callTop, /* top of call stack during execution */ - callSize; /* size of call stack */ - TT_CallStack callStack; /* call stack */ + FT_Int callTop, /* @ top of call stack during execution */ + callSize; /* size of call stack */ + TT_CallStack callStack; /* call stack */ FT_UShort maxPoints; /* capacity of this context's `pts' */ FT_Short maxContours; /* record, expressed in points and */ /* contours. */ - TT_CodeRangeTable codeRangeTable; /* table of valid code ranges */ - /* useful for the debugger */ + TT_CodeRangeTable codeRangeTable; /* ! table of valid code ranges */ + /* useful for the debugger */ - FT_UShort storeSize; /* size of current storage */ - FT_Long* storage; /* storage area */ + FT_UShort storeSize; /* ! size of current storage */ + FT_Long* storage; /* ! storage area */ + FT_UShort glyfStoreSize; + FT_Long* glyfStorage; /* storage working copy for glyph */ + FT_Long* origStorage; FT_F26Dot6 period; /* values used for the */ FT_F26Dot6 phase; /* `SuperRounding' */ FT_F26Dot6 threshold; - FT_Bool instruction_trap; /* If `True', the interpreter will */ - /* exit after each instruction */ + FT_Bool instruction_trap; /* ! If `True', the interpreter */ + /* exits after each instruction */ TT_GraphicsState default_GS; /* graphics state resulting from */ /* the prep program */ @@ -238,7 +248,7 @@ FT_BEGIN_HEADER func_dualproj, /* current dual proj. function */ func_freeProj; /* current freedom proj. func */ - TT_Move_Func func_move; /* current point move function */ + TT_Move_Func func_move; /* current point move function */ TT_Move_Func func_move_orig; /* move original position function */ TT_Cur_Ppem_Func func_cur_ppem; /* get current proj. ppem value */ @@ -469,16 +479,15 @@ FT_BEGIN_HEADER * TT_New_Context * * @Description: - * Queries the face context for a given font. Note that there is - * now a _single_ execution context in the TrueType driver which is - * shared among faces. + * Create a `TT_ExecContext`. Note that there is now an execution + * context per `TT_Size` that is not shared among faces. * * @Input: - * face :: - * A handle to the source face object. + * driver :: + * A handle to the driver, used for memory allocation. * * @Return: - * A handle to the execution context. Initialized for `face'. + * A handle to a new empty execution context. * * @Note: * Only the glyph loader and debugger should call this function. diff --git a/src/truetype/ttobjs.c b/src/truetype/ttobjs.c index 06d456955..93fc54844 100644 --- a/src/truetype/ttobjs.c +++ b/src/truetype/ttobjs.c @@ -4,7 +4,7 @@ * * Objects manager (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -140,7 +140,31 @@ return error; } -#endif /* TT_USE_BYTECODE_INTERPRETER */ + + + /* + * Fonts embedded in PDFs are made unique by prepending randomization + * prefixes to their names: as defined in Section 5.5.3, 'Font Subsets', + * of the PDF Reference, they consist of 6 uppercase letters followed by + * the `+` sign. For safety, we do not skip prefixes violating this rule. + */ + + static const FT_String* + tt_skip_pdffont_random_tag( const FT_String* name ) + { + unsigned int i; + + + if ( ft_strlen( name ) < 8 || name[6] != '+' ) + return name; + + for ( i = 0; i < 6; i++ ) + if ( !ft_isupper( name[i] ) ) + return name; + + FT_TRACE7(( "name without randomization tag: %s\n", name + 7 )); + return name + 7; + } /* Compare the face with a list of well-known `tricky' fonts. */ @@ -151,7 +175,7 @@ { #define TRICK_NAMES_MAX_CHARACTERS 19 -#define TRICK_NAMES_COUNT 26 +#define TRICK_NAMES_COUNT 20 static const char trick_names[TRICK_NAMES_COUNT] [TRICK_NAMES_MAX_CHARACTERS + 1] = @@ -171,22 +195,28 @@ "DFGirl-W6-WIN-BF", /* dftt-h6.ttf; version 1.00, 1993 */ "DFGothic-EB", /* DynaLab Inc. 1992-1995 */ "DFGyoSho-Lt", /* DynaLab Inc. 1992-1995 */ - "DFHei-Md-HK-BF", /* maybe DynaLab Inc. */ + "DFHei", /* DynaLab Inc. 1992-1995 [DFHei-Bd-WIN-HK-BF] */ + /* covers "DFHei-Md-HK-BF", maybe DynaLab Inc. */ + "DFHSGothic-W5", /* DynaLab Inc. 1992-1995 */ "DFHSMincho-W3", /* DynaLab Inc. 1992-1995 */ "DFHSMincho-W7", /* DynaLab Inc. 1992-1995 */ "DFKaiSho-SB", /* dfkaisb.ttf */ - "DFKaiShu", - "DFKaiShu-Md-HK-BF", /* maybe DynaLab Inc. */ + "DFKaiShu", /* covers "DFKaiShu-Md-HK-BF", maybe DynaLab Inc. */ "DFKai-SB", /* kaiu.ttf; version 3.00, 1998 [DFKaiShu-SB-Estd-BF] */ - "DFMing-Bd-HK-BF", /* maybe DynaLab Inc. */ + + "DFMing", /* DynaLab Inc. 1992-1995 [DFMing-Md-WIN-HK-BF] */ + /* covers "DFMing-Bd-HK-BF", maybe DynaLab Inc. */ + "DLC", /* dftt-m7.ttf; version 1.00, 1993 [DLCMingBold] */ /* dftt-f5.ttf; version 1.00, 1993 [DLCFongSung] */ - "DLCHayMedium", /* dftt-b5.ttf; version 1.00, 1993 */ - "DLCHayBold", /* dftt-b7.ttf; version 1.00, 1993 */ - "DLCKaiMedium", /* dftt-k5.ttf; version 1.00, 1992 */ - "DLCLiShu", /* dftt-l5.ttf; version 1.00, 1992 */ - "DLCRoundBold", /* dftt-r7.ttf; version 1.00, 1993 */ + /* covers following */ + /* "DLCHayMedium", dftt-b5.ttf; version 1.00, 1993 */ + /* "DLCHayBold", dftt-b7.ttf; version 1.00, 1993 */ + /* "DLCKaiMedium", dftt-k5.ttf; version 1.00, 1992 */ + /* "DLCLiShu", dftt-l5.ttf; version 1.00, 1992 */ + /* "DLCRoundBold", dftt-r7.ttf; version 1.00, 1993 */ + "HuaTianKaiTi?", /* htkt2.ttf */ "HuaTianSongTi?", /* htst3.ttf */ "Ming(for ISO10646)", /* hkscsiic.ttf; version 0.12, 2007 [Ming] */ @@ -199,10 +229,12 @@ }; int nn; + const FT_String* name_without_tag; + name_without_tag = tt_skip_pdffont_random_tag( name ); for ( nn = 0; nn < TRICK_NAMES_COUNT; nn++ ) - if ( ft_strstr( name, trick_names[nn] ) ) + if ( ft_strstr( name_without_tag, trick_names[nn] ) ) return TRUE; return FALSE; @@ -277,7 +309,7 @@ tt_check_trickyness_sfnt_ids( TT_Face face ) { #define TRICK_SFNT_IDS_PER_FACE 3 -#define TRICK_SFNT_IDS_NUM_FACES 29 +#define TRICK_SFNT_IDS_NUM_FACES 31 static const tt_sfnt_id_rec sfnt_id[TRICK_SFNT_IDS_NUM_FACES] [TRICK_SFNT_IDS_PER_FACE] = { @@ -430,6 +462,16 @@ { 0x00170003UL, 0x00000060UL }, /* cvt */ { 0xDBB4306EUL, 0x000058AAUL }, /* fpgm */ { 0xD643482AUL, 0x00000035UL } /* prep */ + }, + { /* DFHei-Bd-WIN-HK-BF, issue #1087 */ + { 0x1269EB58UL, 0x00000350UL }, /* cvt */ + { 0x5CD5957AUL, 0x00006A4EUL }, /* fpgm */ + { 0xF758323AUL, 0x00000380UL } /* prep */ + }, + { /* DFMing-Md-WIN-HK-BF, issue #1087 */ + { 0x122FEB0BUL, 0x00000350UL }, /* cvt */ + { 0x7F10919AUL, 0x000070A9UL }, /* fpgm */ + { 0x7CD7E7B7UL, 0x0000025CUL } /* prep */ } }; @@ -510,17 +552,27 @@ /* For first, check the face name for quick check. */ if ( face->family_name && tt_check_trickyness_family( face->family_name ) ) + { + FT_TRACE3(( "found as a tricky font" + " by its family name: %s\n", face->family_name )); return TRUE; + } /* Type42 fonts may lack `name' tables, we thus try to identify */ /* tricky fonts by checking the checksums of Type42-persistent */ /* sfnt tables (`cvt', `fpgm', and `prep'). */ if ( tt_check_trickyness_sfnt_ids( (TT_Face)face ) ) + { + FT_TRACE3(( "found as a tricky font" + " by its cvt/fpgm/prep table checksum\n" )); return TRUE; + } return FALSE; } +#endif /* TT_USE_BYTECODE_INTERPRETER */ + /* Check whether `.notdef' is the only glyph in the `loca' table. */ static FT_Bool @@ -666,8 +718,10 @@ if ( error ) goto Exit; +#ifdef TT_USE_BYTECODE_INTERPRETER if ( tt_check_trickyness( ttface ) ) ttface->face_flags |= FT_FACE_FLAG_TRICKY; +#endif error = tt_face_load_hdmx( face, stream ); if ( error ) @@ -712,8 +766,8 @@ tt_check_single_notdef( ttface ) ) { FT_TRACE5(( "tt_face_init:" - " Only the `.notdef' glyph has an outline.\n" - " " + " Only the `.notdef' glyph has an outline.\n" )); + FT_TRACE5(( " " " Resetting scalable flag to FALSE.\n" )); ttface->face_flags &= ~FT_FACE_FLAG_SCALABLE; @@ -1190,11 +1244,11 @@ /* rescale CVT when needed */ if ( size->cvt_ready < 0 ) { - FT_UInt i; + FT_UShort i; /* all twilight points are originally zero */ - for ( i = 0; i < (FT_UInt)size->twilight.n_points; i++ ) + for ( i = 0; i < size->twilight.n_points; i++ ) { size->twilight.org[i].x = 0; size->twilight.org[i].y = 0; @@ -1203,7 +1257,7 @@ } /* clear storage area */ - for ( i = 0; i < (FT_UInt)size->storage_size; i++ ) + for ( i = 0; i < size->storage_size; i++ ) size->storage[i] = 0; size->GS = tt_default_graphics_state; diff --git a/src/truetype/ttobjs.h b/src/truetype/ttobjs.h index d986deabc..fd7237872 100644 --- a/src/truetype/ttobjs.h +++ b/src/truetype/ttobjs.h @@ -4,7 +4,7 @@ * * Objects manager (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/truetype/ttpload.c b/src/truetype/ttpload.c index b1255b88c..71db75ae1 100644 --- a/src/truetype/ttpload.c +++ b/src/truetype/ttpload.c @@ -4,7 +4,7 @@ * * TrueType-specific tables loader (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -98,36 +98,23 @@ goto Exit; } - if ( face->header.Index_To_Loc_Format != 0 ) - { - shift = 2; + shift = face->header.Index_To_Loc_Format != 0 ? 2 : 1; - if ( table_len >= 0x40000L ) - { - FT_TRACE2(( "table too large\n" )); - table_len = 0x3FFFFL; - } - face->num_locations = table_len >> shift; - } - else + if ( table_len > 0x10000UL << shift ) { - shift = 1; - - if ( table_len >= 0x20000L ) - { - FT_TRACE2(( "table too large\n" )); - table_len = 0x1FFFFL; - } - face->num_locations = table_len >> shift; + FT_TRACE2(( "table too large\n" )); + table_len = 0x10000UL << shift; } + face->num_locations = table_len >> shift; + if ( face->num_locations != (FT_ULong)face->root.num_glyphs + 1 ) { FT_TRACE2(( "glyph count mismatch! loca: %ld, maxp: %ld\n", face->num_locations - 1, face->root.num_glyphs )); /* we only handle the case where `maxp' gives a larger value */ - if ( face->num_locations <= (FT_ULong)face->root.num_glyphs ) + if ( face->num_locations < (FT_ULong)face->root.num_glyphs + 1 ) { FT_ULong new_loca_len = ( (FT_ULong)face->root.num_glyphs + 1 ) << shift; @@ -237,10 +224,11 @@ if ( pos1 > face->glyf_len ) { FT_TRACE1(( "tt_face_get_location:" - " too large offset (0x%08lx) found for glyph index %d,\n" - " " + " too large offset (0x%08lx) found for glyph index %d,\n", + pos1, gindex )); + FT_TRACE1(( " " " exceeding the end of `glyf' table (0x%08lx)\n", - pos1, gindex, face->glyf_len )); + face->glyf_len )); *asize = 0; return 0; } @@ -251,19 +239,21 @@ if ( gindex == face->num_locations - 2 ) { FT_TRACE1(( "tt_face_get_location:" - " too large size (%ld bytes) found for glyph index %d,\n" - " " + " too large size (%ld bytes) found for glyph index %d,\n", + pos2 - pos1, gindex )); + FT_TRACE1(( " " " truncating at the end of `glyf' table to %ld bytes\n", - pos2 - pos1, gindex, face->glyf_len - pos1 )); + face->glyf_len - pos1 )); pos2 = face->glyf_len; } else { FT_TRACE1(( "tt_face_get_location:" - " too large offset (0x%08lx) found for glyph index %d,\n" - " " + " too large offset (0x%08lx) found for glyph index %d,\n", + pos2, gindex + 1 )); + FT_TRACE1(( " " " exceeding the end of `glyf' table (0x%08lx)\n", - pos2, gindex + 1, face->glyf_len )); + face->glyf_len )); *asize = 0; return 0; } @@ -344,7 +334,7 @@ face->cvt_size = table_len / 2; - if ( FT_NEW_ARRAY( face->cvt, face->cvt_size ) ) + if ( FT_QNEW_ARRAY( face->cvt, face->cvt_size ) ) goto Exit; if ( FT_FRAME_ENTER( face->cvt_size * 2L ) ) @@ -557,12 +547,6 @@ num_records = FT_NEXT_USHORT( p ); record_size = FT_NEXT_ULONG( p ); - /* The maximum number of bytes in an hdmx device record is the */ - /* maximum number of glyphs + 2; this is 0xFFFF + 2, thus */ - /* explaining why `record_size' is a long (which we read as */ - /* unsigned long for convenience). In practice, two bytes are */ - /* sufficient to hold the size value. */ - /* */ /* There are at least two fonts, HANNOM-A and HANNOM-B version */ /* 2.0 (2005), which get this wrong: The upper two bytes of */ /* the size value are set to 0xFF instead of 0x00. We catch */ @@ -571,19 +555,30 @@ if ( record_size >= 0xFFFF0000UL ) record_size &= 0xFFFFU; + FT_TRACE2(( "Hdmx " )); + /* The limit for `num_records' is a heuristic value. */ - if ( num_records > 255 || - ( num_records > 0 && - ( record_size > 0x10001L || - record_size < 4 ) ) ) + if ( num_records > 255 || num_records == 0 ) { - error = FT_THROW( Invalid_File_Format ); + FT_TRACE2(( "with unreasonable %u records rejected\n", num_records )); goto Fail; } - if ( FT_NEW_ARRAY( face->hdmx_record_sizes, num_records ) ) + /* Out-of-spec tables are rejected. The record size must be */ + /* equal to the number of glyphs + 2 + 32-bit padding. */ + if ( (FT_Long)record_size != ( ( face->root.num_glyphs + 2 + 3 ) & ~3 ) ) + { + FT_TRACE2(( "with record size off by %ld bytes rejected\n", + (FT_Long)record_size - + ( ( face->root.num_glyphs + 2 + 3 ) & ~3 ) )); goto Fail; + } + if ( FT_QNEW_ARRAY( face->hdmx_record_sizes, num_records ) ) + goto Fail; + + /* XXX: We do not check if the records are sorted by ppem */ + /* and cannot use binary search later. */ for ( nn = 0; nn < num_records; nn++ ) { if ( p + record_size > limit ) @@ -597,6 +592,8 @@ face->hdmx_table_size = table_size; face->hdmx_record_size = record_size; + FT_TRACE2(( "%ux%lu loaded\n", num_records, record_size )); + Exit: return error; diff --git a/src/truetype/ttpload.h b/src/truetype/ttpload.h index bb669e027..84c42cdaf 100644 --- a/src/truetype/ttpload.h +++ b/src/truetype/ttpload.h @@ -4,7 +4,7 @@ * * TrueType-specific tables loader (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/truetype/ttsubpix.c b/src/truetype/ttsubpix.c index 56667deaf..c484665b9 100644 --- a/src/truetype/ttsubpix.c +++ b/src/truetype/ttsubpix.c @@ -4,7 +4,7 @@ * * TrueType Subpixel Hinting. * - * Copyright (C) 2010-2020 by + * Copyright (C) 2010-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -315,7 +315,7 @@ static const SPH_TweakRule SKIP_NONPIXEL_Y_MOVES_Rules [SKIP_NONPIXEL_Y_MOVES_RULES_SIZE] = { - /* fix vwxyz thinness*/ + /* fix vwxyz thinness */ { "Consolas", 0, "", 0 }, /* Fix thin middle stems */ { "Core MS Legacy Fonts", 0, "Regular", 0 }, @@ -891,12 +891,12 @@ #define TWEAK_RULES( x ) \ if ( sph_test_tweak( face, family, ppem, style, glyph_index, \ x##_Rules, x##_RULES_SIZE ) ) \ - loader->exec->sph_tweak_flags |= SPH_TWEAK_##x; + loader->exec->sph_tweak_flags |= SPH_TWEAK_##x #define TWEAK_RULES_EXCEPTIONS( x ) \ if ( sph_test_tweak( face, family, ppem, style, glyph_index, \ x##_Rules_Exceptions, x##_RULES_EXCEPTIONS_SIZE ) ) \ - loader->exec->sph_tweak_flags &= ~SPH_TWEAK_##x; + loader->exec->sph_tweak_flags &= ~SPH_TWEAK_##x FT_LOCAL_DEF( void ) diff --git a/src/truetype/ttsubpix.h b/src/truetype/ttsubpix.h index 229a6cf05..762b7c98a 100644 --- a/src/truetype/ttsubpix.h +++ b/src/truetype/ttsubpix.h @@ -4,7 +4,7 @@ * * TrueType Subpixel Hinting. * - * Copyright (C) 2010-2020 by + * Copyright (C) 2010-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/type1/module.mk b/src/type1/module.mk index cffb774b4..5da4716f4 100644 --- a/src/type1/module.mk +++ b/src/type1/module.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/type1/rules.mk b/src/type1/rules.mk index 213e61924..985248d31 100644 --- a/src/type1/rules.mk +++ b/src/type1/rules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/type1/t1afm.c b/src/type1/t1afm.c index b9cd66b04..4c18ed195 100644 --- a/src/type1/t1afm.c +++ b/src/type1/t1afm.c @@ -4,7 +4,7 @@ * * AFM support for Type 1 fonts (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -83,7 +83,7 @@ /* compare two kerning pairs */ - FT_CALLBACK_DEF( int ) + FT_COMPARE_DEF( int ) compare_kern_pairs( const void* a, const void* b ) { diff --git a/src/type1/t1afm.h b/src/type1/t1afm.h index edf919c79..86fe45ea3 100644 --- a/src/type1/t1afm.h +++ b/src/type1/t1afm.h @@ -4,7 +4,7 @@ * * AFM support for Type 1 fonts (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/type1/t1driver.c b/src/type1/t1driver.c index b786a8781..f4d7a089a 100644 --- a/src/type1/t1driver.c +++ b/src/type1/t1driver.c @@ -4,7 +4,7 @@ * * Type 1 driver interface (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/type1/t1driver.h b/src/type1/t1driver.h index e7eae0b88..20a827f89 100644 --- a/src/type1/t1driver.h +++ b/src/type1/t1driver.h @@ -4,7 +4,7 @@ * * High-level Type 1 driver interface (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/type1/t1errors.h b/src/type1/t1errors.h index ad03a3d32..18ef75452 100644 --- a/src/type1/t1errors.h +++ b/src/type1/t1errors.h @@ -4,7 +4,7 @@ * * Type 1 error codes (specification only). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/type1/t1gload.c b/src/type1/t1gload.c index d16b81f24..86649edf3 100644 --- a/src/type1/t1gload.c +++ b/src/type1/t1gload.c @@ -4,7 +4,7 @@ * * Type 1 Glyph Loader (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -79,7 +79,7 @@ /* For ordinary fonts get the character data stored in the face record. */ { char_string->pointer = type1->charstrings[glyph_index]; - char_string->length = (FT_Int)type1->charstrings_len[glyph_index]; + char_string->length = type1->charstrings_len[glyph_index]; } if ( !error ) diff --git a/src/type1/t1gload.h b/src/type1/t1gload.h index 9947507c8..a924d551a 100644 --- a/src/type1/t1gload.h +++ b/src/type1/t1gload.h @@ -4,7 +4,7 @@ * * Type 1 Glyph Loader (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/type1/t1load.c b/src/type1/t1load.c index 84986007b..bb62c7990 100644 --- a/src/type1/t1load.c +++ b/src/type1/t1load.c @@ -4,7 +4,7 @@ * * Type 1 font loader (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -117,6 +117,9 @@ goto Exit; blend->num_default_design_vector = 0; + blend->weight_vector = NULL; + blend->default_weight_vector = NULL; + blend->design_pos[0] = NULL; face->blend = blend; } @@ -130,14 +133,11 @@ /* allocate the blend `private' and `font_info' dictionaries */ - if ( FT_NEW_ARRAY( blend->font_infos[1], num_designs ) || - FT_NEW_ARRAY( blend->privates [1], num_designs ) || - FT_NEW_ARRAY( blend->bboxes [1], num_designs ) || - FT_NEW_ARRAY( blend->weight_vector, num_designs * 2 ) ) + if ( FT_NEW_ARRAY( blend->font_infos[1], num_designs ) || + FT_NEW_ARRAY( blend->privates [1], num_designs ) || + FT_NEW_ARRAY( blend->bboxes [1], num_designs ) ) goto Exit; - blend->default_weight_vector = blend->weight_vector + num_designs; - blend->font_infos[0] = &face->type1.font_info; blend->privates [0] = &face->type1.private_dict; blend->bboxes [0] = &face->type1.font_bbox; @@ -164,21 +164,6 @@ blend->num_axis = num_axis; } - /* allocate the blend design pos table if needed */ - num_designs = blend->num_designs; - num_axis = blend->num_axis; - if ( num_designs && num_axis && blend->design_pos[0] == 0 ) - { - FT_UInt n; - - - if ( FT_NEW_ARRAY( blend->design_pos[0], num_designs * num_axis ) ) - goto Exit; - - for ( n = 1; n < num_designs; n++ ) - blend->design_pos[n] = blend->design_pos[0] + num_axis * n; - } - Exit: return error; @@ -580,7 +565,7 @@ { FT_Error error; PS_Blend blend = face->blend; - FT_UInt n, p; + FT_UInt n; FT_Fixed final_blends[T1_MAX_MM_DESIGNS]; @@ -599,7 +584,7 @@ PS_DesignMap map = blend->design_map + n; FT_Long* designs = map->design_points; FT_Fixed* blends = map->blend_points; - FT_Int before = -1, after = -1; + FT_Int p, before = -1, after = -1; /* use a default value if we don't have a coordinate */ @@ -608,7 +593,7 @@ else design = ( designs[map->num_points - 1] - designs[0] ) / 2; - for ( p = 0; p < (FT_UInt)map->num_points; p++ ) + for ( p = 0; p < (FT_Int)map->num_points; p++ ) { FT_Long p_design = designs[p]; @@ -622,11 +607,11 @@ if ( design < p_design ) { - after = (FT_Int)p; + after = p; break; } - before = (FT_Int)p; + before = p; } /* now interpolate if necessary */ @@ -851,7 +836,7 @@ FT_FREE( name ); } - if ( FT_ALLOC( blend->axis_names[n], len + 1 ) ) + if ( FT_QALLOC( blend->axis_names[n], len + 1 ) ) goto Exit; name = (FT_Byte*)blend->axis_names[n]; @@ -872,12 +857,14 @@ { T1_TokenRec design_tokens[T1_MAX_MM_DESIGNS]; FT_Int num_designs; - FT_Int num_axis; - T1_Parser parser = &loader->parser; + FT_Int num_axis = 0; /* make compiler happy */ + T1_Parser parser = &loader->parser; + FT_Memory memory = face->root.memory; + FT_Error error = FT_Err_Ok; + FT_Fixed* design_pos[T1_MAX_MM_DESIGNS]; - FT_Error error = FT_Err_Ok; - PS_Blend blend; + design_pos[0] = NULL; /* get the array of design tokens -- compute number of designs */ T1_ToTokenArray( parser, design_tokens, @@ -899,12 +886,10 @@ { FT_Byte* old_cursor = parser->root.cursor; FT_Byte* old_limit = parser->root.limit; - FT_Int n; + FT_Int n, nn; + PS_Blend blend; - blend = face->blend; - num_axis = 0; /* make compiler happy */ - FT_TRACE4(( " [" )); for ( n = 0; n < num_designs; n++ ) @@ -937,7 +922,13 @@ (FT_UInt)num_axis ); if ( error ) goto Exit; - blend = face->blend; + + /* allocate a blend design pos table */ + if ( FT_QNEW_ARRAY( design_pos[0], num_designs * num_axis ) ) + goto Exit; + + for ( nn = 1; nn < num_designs; nn++ ) + design_pos[nn] = design_pos[0] + num_axis * nn; } else if ( n_axis != num_axis ) { @@ -955,8 +946,8 @@ parser->root.cursor = token2->start; parser->root.limit = token2->limit; - blend->design_pos[n][axis] = T1_ToFixed( parser, 0 ); - FT_TRACE4(( " %f", (double)blend->design_pos[n][axis] / 65536 )); + design_pos[n][axis] = T1_ToFixed( parser, 0 ); + FT_TRACE4(( " %f", (double)design_pos[n][axis] / 65536 )); } FT_TRACE4(( "]" )) ; } @@ -965,9 +956,21 @@ loader->parser.root.cursor = old_cursor; loader->parser.root.limit = old_limit; + + /* a valid BlendDesignPosition has been parsed */ + blend = face->blend; + if ( blend->design_pos[0] ) + FT_FREE( blend->design_pos[0] ); + + for ( n = 0; n < num_designs; n++ ) + { + blend->design_pos[n] = design_pos[n]; + design_pos[n] = NULL; + } } Exit: + FT_FREE( design_pos[0] ); loader->parser.root.error = error; } @@ -1044,7 +1047,7 @@ } /* allocate design map data */ - if ( FT_NEW_ARRAY( map->design_points, num_points * 2 ) ) + if ( FT_QNEW_ARRAY( map->design_points, num_points * 2 ) ) goto Exit; map->blend_points = map->design_points + num_points; map->num_points = (FT_Byte)num_points; @@ -1088,6 +1091,7 @@ T1_TokenRec design_tokens[T1_MAX_MM_DESIGNS]; FT_Int num_designs; FT_Error error = FT_Err_Ok; + FT_Memory memory = face->root.memory; T1_Parser parser = &loader->parser; PS_Blend blend = face->blend; T1_Token token; @@ -1122,13 +1126,19 @@ else if ( blend->num_designs != (FT_UInt)num_designs ) { FT_ERROR(( "parse_weight_vector:" - " /BlendDesignPosition and /WeightVector have\n" - " " + " /BlendDesignPosition and /WeightVector have\n" )); + FT_ERROR(( " " " different number of elements\n" )); error = FT_THROW( Invalid_File_Format ); goto Exit; } + if ( !blend->weight_vector ) + if ( FT_QNEW_ARRAY( blend->weight_vector, num_designs * 2 ) ) + goto Exit; + + blend->default_weight_vector = blend->weight_vector + num_designs; + old_cursor = parser->root.cursor; old_limit = parser->root.limit; @@ -1307,9 +1317,9 @@ else { FT_TRACE1(( "t1_load_keyword: ignoring keyword `%s'" - " which is not valid at this point\n" - " (probably due to missing keywords)\n", + " which is not valid at this point\n", field->ident )); + FT_TRACE1(( " (probably due to missing keywords)\n" )); error = FT_Err_Ok; } @@ -1858,7 +1868,7 @@ } /* t1_decrypt() shouldn't write to base -- make temporary copy */ - if ( FT_ALLOC( temp, size ) ) + if ( FT_QALLOC( temp, size ) ) goto Fail; FT_MEM_COPY( temp, base, size ); psaux->t1_decrypt( temp, size, 4330 ); @@ -2068,7 +2078,7 @@ } /* t1_decrypt() shouldn't write to base -- make temporary copy */ - if ( FT_ALLOC( temp, size ) ) + if ( FT_QALLOC( temp, size ) ) goto Fail; FT_MEM_COPY( temp, base, size ); psaux->t1_decrypt( temp, size, 4330 ); @@ -2578,7 +2588,15 @@ ( !face->blend->num_designs || !face->blend->num_axis ) ) T1_Done_Blend( face ); - /* another safety check */ + /* the font may have no valid WeightVector */ + if ( face->blend && !face->blend->weight_vector ) + T1_Done_Blend( face ); + + /* the font may have no valid BlendDesignPositions */ + if ( face->blend && !face->blend->design_pos[0] ) + T1_Done_Blend( face ); + + /* the font may have no valid BlendDesignMap */ if ( face->blend ) { FT_UInt i; diff --git a/src/type1/t1load.h b/src/type1/t1load.h index 4396415c2..ba19adb14 100644 --- a/src/type1/t1load.h +++ b/src/type1/t1load.h @@ -4,7 +4,7 @@ * * Type 1 font loader (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/type1/t1objs.c b/src/type1/t1objs.c index 3b918b733..50dad038f 100644 --- a/src/type1/t1objs.c +++ b/src/type1/t1objs.c @@ -4,7 +4,7 @@ * * Type 1 objects manager (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -116,11 +116,15 @@ T1_Size_Request( FT_Size t1size, /* T1_Size */ FT_Size_Request req ) { + FT_Error error; + T1_Size size = (T1_Size)t1size; PSH_Globals_Funcs funcs = T1_Size_Get_Globals_Funcs( size ); - FT_Request_Metrics( size->root.face, req ); + error = FT_Request_Metrics( size->root.face, req ); + if ( error ) + goto Exit; if ( funcs ) funcs->set_scale( (PSH_Globals)t1size->internal->module_data, @@ -128,7 +132,8 @@ size->root.metrics.y_scale, 0, 0 ); - return FT_Err_Ok; + Exit: + return error; } @@ -217,7 +222,6 @@ { FT_FREE( face->buildchar ); - face->buildchar = NULL; face->len_buildchar = 0; } @@ -598,11 +602,7 @@ /* set default property values, cf. `ftt1drv.h' */ -#ifdef T1_CONFIG_OPTION_OLD_ENGINE - driver->hinting_engine = FT_HINTING_FREETYPE; -#else driver->hinting_engine = FT_HINTING_ADOBE; -#endif driver->no_stem_darkening = TRUE; diff --git a/src/type1/t1objs.h b/src/type1/t1objs.h index 536be8ba1..5f103b506 100644 --- a/src/type1/t1objs.h +++ b/src/type1/t1objs.h @@ -4,7 +4,7 @@ * * Type 1 objects manager (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/type1/t1parse.c b/src/type1/t1parse.c index 74cf38bde..9f226296a 100644 --- a/src/type1/t1parse.c +++ b/src/type1/t1parse.c @@ -4,7 +4,7 @@ * * Type 1 parser (body). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -221,7 +221,7 @@ else { /* read segment in memory -- this is clumsy, but so does the format */ - if ( FT_ALLOC( parser->base_dict, size ) || + if ( FT_QALLOC( parser->base_dict, size ) || FT_STREAM_READ( parser->base_dict, size ) ) goto Exit; parser->base_len = size; @@ -302,8 +302,8 @@ goto Fail; } - if ( FT_STREAM_SEEK( start_pos ) || - FT_ALLOC( parser->private_dict, parser->private_len ) ) + if ( FT_STREAM_SEEK( start_pos ) || + FT_QALLOC( parser->private_dict, parser->private_len ) ) goto Fail; parser->private_len = 0; @@ -450,7 +450,7 @@ if ( parser->in_memory ) { /* note that we allocate one more byte to put a terminating `0' */ - if ( FT_ALLOC( parser->private_dict, size + 1 ) ) + if ( FT_QALLOC( parser->private_dict, size + 1 ) ) goto Fail; parser->private_len = size; } diff --git a/src/type1/t1parse.h b/src/type1/t1parse.h index 1ea0110b5..247ff73b2 100644 --- a/src/type1/t1parse.h +++ b/src/type1/t1parse.h @@ -4,7 +4,7 @@ * * Type 1 parser (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/type1/t1tokens.h b/src/type1/t1tokens.h index c09420355..13ac8ac1c 100644 --- a/src/type1/t1tokens.h +++ b/src/type1/t1tokens.h @@ -4,7 +4,7 @@ * * Type 1 tokenizer (specification). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/type1/type1.c b/src/type1/type1.c index cadee7899..003b78cb8 100644 --- a/src/type1/type1.c +++ b/src/type1/type1.c @@ -4,7 +4,7 @@ * * FreeType Type 1 driver component (body only). * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/type42/module.mk b/src/type42/module.mk index 6ef3a95ea..ec3214cda 100644 --- a/src/type42/module.mk +++ b/src/type42/module.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 2002-2020 by +# Copyright (C) 2002-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/type42/rules.mk b/src/type42/rules.mk index f4ce91a3b..9821943ea 100644 --- a/src/type42/rules.mk +++ b/src/type42/rules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 2002-2020 by +# Copyright (C) 2002-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/type42/t42drivr.c b/src/type42/t42drivr.c index 90898b432..e74ba1deb 100644 --- a/src/type42/t42drivr.c +++ b/src/type42/t42drivr.c @@ -4,7 +4,7 @@ * * High-level Type 42 driver interface (body). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * Roberto Alameda. * * This file is part of the FreeType project, and may only be used, diff --git a/src/type42/t42drivr.h b/src/type42/t42drivr.h index 8bf2afc75..c6d8a4409 100644 --- a/src/type42/t42drivr.h +++ b/src/type42/t42drivr.h @@ -4,7 +4,7 @@ * * High-level Type 42 driver interface (specification). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * Roberto Alameda. * * This file is part of the FreeType project, and may only be used, diff --git a/src/type42/t42error.h b/src/type42/t42error.h index e48132ec0..470f5189a 100644 --- a/src/type42/t42error.h +++ b/src/type42/t42error.h @@ -4,7 +4,7 @@ * * Type 42 error codes (specification only). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/type42/t42objs.c b/src/type42/t42objs.c index 6acfcdf40..03955e945 100644 --- a/src/type42/t42objs.c +++ b/src/type42/t42objs.c @@ -4,7 +4,7 @@ * * Type 42 objects manager (body). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * Roberto Alameda. * * This file is part of the FreeType project, and may only be used, @@ -44,7 +44,7 @@ parser = &loader.parser; - if ( FT_ALLOC( face->ttf_data, 12 ) ) + if ( FT_QALLOC( face->ttf_data, 12 ) ) goto Exit; /* while parsing the font we always update `face->ttf_size' so that */ @@ -510,7 +510,8 @@ error = FT_New_Size( t42face->ttf_face, &ttsize ); - t42size->ttsize = ttsize; + if ( !error ) + t42size->ttsize = ttsize; FT_Activate_Size( ttsize ); @@ -582,6 +583,7 @@ FT_Face face = t42slot->face; T42_Face t42face = (T42_Face)face; FT_GlyphSlot ttslot; + FT_Memory memory = face->memory; FT_Error error = FT_Err_Ok; @@ -593,9 +595,15 @@ else { error = FT_New_GlyphSlot( t42face->ttf_face, &ttslot ); - slot->ttslot = ttslot; + if ( !error ) + slot->ttslot = ttslot; } + /* share the loader so that the autohinter can see it */ + FT_GlyphLoader_Done( slot->ttslot->internal->loader ); + FT_FREE( slot->ttslot->internal ); + slot->ttslot->internal = t42slot->internal; + return error; } @@ -606,6 +614,8 @@ T42_GlyphSlot slot = (T42_GlyphSlot)t42slot; + /* do not destroy the inherited internal structure just yet */ + slot->ttslot->internal = NULL; FT_Done_GlyphSlot( slot->ttslot ); } diff --git a/src/type42/t42objs.h b/src/type42/t42objs.h index 69f5cffd4..cbd344ffb 100644 --- a/src/type42/t42objs.h +++ b/src/type42/t42objs.h @@ -4,7 +4,7 @@ * * Type 42 objects manager (specification). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * Roberto Alameda. * * This file is part of the FreeType project, and may only be used, diff --git a/src/type42/t42parse.c b/src/type42/t42parse.c index 98507699f..ea2c5198a 100644 --- a/src/type42/t42parse.c +++ b/src/type42/t42parse.c @@ -4,7 +4,7 @@ * * Type 42 font parser (body). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * Roberto Alameda. * * This file is part of the FreeType project, and may only be used, @@ -197,7 +197,7 @@ else { /* read segment in memory */ - if ( FT_ALLOC( parser->base_dict, size ) || + if ( FT_QALLOC( parser->base_dict, size ) || FT_STREAM_READ( parser->base_dict, size ) ) goto Exit; @@ -576,6 +576,9 @@ old_string_size = 0; count = 0; + FT_TRACE2(( "\n" )); + FT_TRACE2(( "t42_parse_sfnts:\n" )); + while ( parser->root.cursor < limit ) { FT_ULong size; @@ -611,7 +614,7 @@ error = FT_THROW( Invalid_File_Format ); goto Fail; } - if ( FT_REALLOC( string_buf, old_string_size, string_size ) ) + if ( FT_QREALLOC( string_buf, old_string_size, string_size ) ) goto Fail; allocated = 1; @@ -680,6 +683,9 @@ goto Fail; } + FT_TRACE2(( " PS string size %5lu bytes, offset 0x%08lx (%lu)\n", + string_size, count, count )); + /* The whole TTF is now loaded into `string_buf'. We are */ /* checking its contents while copying it to `ttf_data'. */ @@ -702,6 +708,9 @@ status = BEFORE_TABLE_DIR; face->ttf_size = 12 + 16 * num_tables; + FT_TRACE2(( " SFNT directory contains %d tables\n", + num_tables )); + if ( (FT_Long)size < face->ttf_size ) { FT_ERROR(( "t42_parse_sfnts: invalid data in sfnts array\n" )); @@ -709,7 +718,7 @@ goto Fail; } - if ( FT_REALLOC( face->ttf_data, 12, face->ttf_size ) ) + if ( FT_QREALLOC( face->ttf_data, 12, face->ttf_size ) ) goto Fail; } /* fall through */ @@ -727,12 +736,18 @@ FT_ULong len; + FT_TRACE2(( "\n" )); + FT_TRACE2(( " table length\n" )); + FT_TRACE2(( " ------------------------------\n" )); + for ( i = 0; i < num_tables; i++ ) { FT_Byte* p = face->ttf_data + 12 + 16 * i + 12; len = FT_PEEK_ULONG( p ); + FT_TRACE2(( " %4i 0x%08lx (%lu)\n", i, len, len )); + if ( len > size || face->ttf_size > (FT_Long)( size - len ) ) { @@ -748,8 +763,12 @@ status = OTHER_TABLES; - if ( FT_REALLOC( face->ttf_data, 12 + 16 * num_tables, - face->ttf_size + 1 ) ) + FT_TRACE2(( "\n" )); + FT_TRACE2(( " allocating %ld bytes\n", face->ttf_size + 1 )); + FT_TRACE2(( "\n" )); + + if ( FT_QREALLOC( face->ttf_data, 12 + 16 * num_tables, + face->ttf_size + 1 ) ) goto Fail; } /* fall through */ diff --git a/src/type42/t42parse.h b/src/type42/t42parse.h index 2ccf052d7..0fbd2b5e0 100644 --- a/src/type42/t42parse.h +++ b/src/type42/t42parse.h @@ -4,7 +4,7 @@ * * Type 42 font parser (specification). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * Roberto Alameda. * * This file is part of the FreeType project, and may only be used, diff --git a/src/type42/t42types.h b/src/type42/t42types.h index ba0cc2142..ea2f03e89 100644 --- a/src/type42/t42types.h +++ b/src/type42/t42types.h @@ -4,7 +4,7 @@ * * Type 42 font data types (specification only). * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * Roberto Alameda. * * This file is part of the FreeType project, and may only be used, diff --git a/src/type42/type42.c b/src/type42/type42.c index 012559e2f..d8d3936bd 100644 --- a/src/type42/type42.c +++ b/src/type42/type42.c @@ -4,7 +4,7 @@ * * FreeType Type 42 driver component. * - * Copyright (C) 2002-2020 by + * Copyright (C) 2002-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/winfonts/fnterrs.h b/src/winfonts/fnterrs.h index 550de386f..d582a9b99 100644 --- a/src/winfonts/fnterrs.h +++ b/src/winfonts/fnterrs.h @@ -4,7 +4,7 @@ * * Win FNT/FON error codes (specification only). * - * Copyright (C) 2001-2020 by + * Copyright (C) 2001-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, diff --git a/src/winfonts/module.mk b/src/winfonts/module.mk index 4614c55fd..4a8580cab 100644 --- a/src/winfonts/module.mk +++ b/src/winfonts/module.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/winfonts/rules.mk b/src/winfonts/rules.mk index e73ef5ea9..1384f23b6 100644 --- a/src/winfonts/rules.mk +++ b/src/winfonts/rules.mk @@ -3,7 +3,7 @@ # -# Copyright (C) 1996-2020 by +# Copyright (C) 1996-2021 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/src/winfonts/winfnt.c b/src/winfonts/winfnt.c index e83312d16..b4fabad28 100644 --- a/src/winfonts/winfnt.c +++ b/src/winfonts/winfnt.c @@ -4,7 +4,7 @@ * * FreeType font driver for Windows FNT/FON files * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * Copyright 2003 Huw D M Davies for Codeweavers * Copyright 2007 Dmitry Timoshkov for Codeweavers @@ -217,7 +217,11 @@ /* first of all, read the FNT header */ if ( FT_STREAM_SEEK( font->offset ) || FT_STREAM_READ_FIELDS( winfnt_header_fields, header ) ) + { + FT_TRACE2(( " not a Windows FNT file\n" )); + error = FT_THROW( Unknown_File_Format ); goto Exit; + } /* check header */ if ( header->version != 0x200 && @@ -284,7 +288,10 @@ /* does it begin with an MZ header? */ if ( FT_STREAM_SEEK( 0 ) || FT_STREAM_READ_FIELDS( winmz_header_fields, &mz_header ) ) + { + error = FT_ERR( Unknown_File_Format ); goto Exit; + } error = FT_ERR( Unknown_File_Format ); if ( mz_header.magic == WINFNT_MZ_MAGIC ) @@ -420,12 +427,12 @@ goto Exit; FT_TRACE2(( "magic %04lx, machine %02x, number_of_sections %u, " - "size_of_optional_header %02x\n" - "magic32 %02x, rsrc_virtual_address %04lx, " - "rsrc_size %04lx\n", + "size_of_optional_header %02x\n", pe32_header.magic, pe32_header.machine, pe32_header.number_of_sections, - pe32_header.size_of_optional_header, + pe32_header.size_of_optional_header )); + FT_TRACE2(( "magic32 %02x, rsrc_virtual_address %04lx, " + "rsrc_size %04lx\n", pe32_header.magic32, pe32_header.rsrc_virtual_address, pe32_header.rsrc_size )); @@ -793,7 +800,7 @@ root->style_flags |= FT_STYLE_FLAG_BOLD; /* set up the `fixed_sizes' array */ - if ( FT_NEW_ARRAY( root->available_sizes, 1 ) ) + if ( FT_QNEW( root->available_sizes ) ) goto Fail; root->num_fixed_sizes = 1; @@ -885,10 +892,10 @@ } family_size = font->header.file_size - font->header.face_name_offset; /* Some broken fonts don't delimit the face name with a final */ - /* NULL byte -- the frame is erroneously one byte too small. */ + /* null byte -- the frame is erroneously one byte too small. */ /* We thus allocate one more byte, setting it explicitly to */ /* zero. */ - if ( FT_ALLOC( font->family_name, family_size + 1 ) ) + if ( FT_QALLOC( font->family_name, family_size + 1 ) ) goto Fail; FT_MEM_COPY( font->family_name, @@ -897,9 +904,10 @@ font->family_name[family_size] = '\0'; - if ( FT_REALLOC( font->family_name, - family_size, - ft_strlen( font->family_name ) + 1 ) ) + /* shrink it to the actual length */ + if ( FT_QREALLOC( font->family_name, + family_size + 1, + ft_strlen( font->family_name ) + 1 ) ) goto Fail; root->family_name = font->family_name; @@ -1094,7 +1102,7 @@ /* note: since glyphs are stored in columns and not in rows we */ /* can't use ft_glyphslot_set_bitmap */ - if ( FT_ALLOC_MULT( bitmap->buffer, bitmap->rows, pitch ) ) + if ( FT_QALLOC_MULT( bitmap->buffer, bitmap->rows, pitch ) ) goto Exit; column = (FT_Byte*)bitmap->buffer; diff --git a/src/winfonts/winfnt.h b/src/winfonts/winfnt.h index 3367c7715..a7134abd9 100644 --- a/src/winfonts/winfnt.h +++ b/src/winfonts/winfnt.h @@ -4,7 +4,7 @@ * * FreeType font driver for Windows FNT/FON files * - * Copyright (C) 1996-2020 by + * Copyright (C) 1996-2021 by * David Turner, Robert Wilhelm, and Werner Lemberg. * Copyright 2007 Dmitry Timoshkov for Codeweavers * diff --git a/subprojects/dlg b/subprojects/dlg new file mode 160000 +Subproject d142e646e263c89f93663e027c2f0d03739ab42 diff --git a/subprojects/libpng.wrap b/subprojects/libpng.wrap new file mode 100644 index 000000000..94435e86c --- /dev/null +++ b/subprojects/libpng.wrap @@ -0,0 +1,12 @@ +[wrap-file] +directory = libpng-1.6.37 +source_url = https://github.com/glennrp/libpng/archive/v1.6.37.tar.gz +source_filename = libpng-1.6.37.tar.gz +source_hash = ca74a0dace179a8422187671aee97dd3892b53e168627145271cad5b5ac81307 +patch_filename = libpng_1.6.37-5_patch.zip +patch_url = https://wrapdb.mesonbuild.com/v2/libpng_1.6.37-5/get_patch +patch_hash = 822200906ad2e82dc8b44e79fe960e980ccad96263548c35eef721086a9926f1 + +[provide] +libpng = libpng_dep + diff --git a/subprojects/zlib.wrap b/subprojects/zlib.wrap new file mode 100644 index 000000000..ce20fb053 --- /dev/null +++ b/subprojects/zlib.wrap @@ -0,0 +1,12 @@ +[wrap-file] +directory = zlib-1.2.11 +source_url = http://zlib.net/fossils/zlib-1.2.11.tar.gz +source_filename = zlib-1.2.11.tar.gz +source_hash = c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1 +patch_url = https://wrapdb.mesonbuild.com/v1/projects/zlib/1.2.11/5/get_zip +patch_filename = zlib-1.2.11-5-wrap.zip +patch_hash = 728c8e24acbc2e6682fbd950fec39e2fc77528af361adb87259f8a8511434004 + +[provide] +zlib = zlib_dep + diff --git a/tests/README.md b/tests/README.md new file mode 100644 index 000000000..0d0b99aa8 --- /dev/null +++ b/tests/README.md @@ -0,0 +1,22 @@ +# Unit and regression tests for the FreeType library + +## Quick Start + +### Download test fonts + +Run the `tests/scripts/download-fonts.py` script, which will +download test fonts to the `tests/data/` directory first. + +### Build the test programs + +The tests are only built with the Meson build system, and +are disabled by default, enable the 'tests' option to compile +them, as in: + + meson setup out -Dtests=enabled + meson compile -C out + +### Run the test programs + + meson test -C out + diff --git a/tests/issue-1063/main.c b/tests/issue-1063/main.c new file mode 100644 index 000000000..fd5404ebb --- /dev/null +++ b/tests/issue-1063/main.c @@ -0,0 +1,48 @@ +#include <stdio.h> + +#include <freetype/freetype.h> +#include <ft2build.h> + + +int +main( void ) +{ + FT_Library library; + FT_Face face = NULL; + + /* + * We assume that `FREETYPE_TESTS_DATA_DIR` was set by `meson test`. + * Otherwise we default to `../tests/data`. + * + * TODO (David): Rewrite this to pass the test directory through the + * command-line. + */ + const char* testdata_dir = getenv( "FREETYPE_TESTS_DATA_DIR" ); + char filepath[FILENAME_MAX]; + + + snprintf( filepath, sizeof( filepath ), "%s/%s", + testdata_dir ? testdata_dir : "../tests/data", + "As.I.Lay.Dying.ttf" ); + + FT_Init_FreeType( &library ); + if ( FT_New_Face( library, filepath, 0, &face ) != 0 ) + { + fprintf( stderr, "Could not open file: %s\n", filepath ); + return 1; + } + + for ( FT_ULong i = 59; i < 171; i++ ) + { + FT_UInt gid = FT_Get_Char_Index( face, i ); + FT_Error code = FT_Load_Glyph( face, gid, FT_LOAD_DEFAULT ); + + + if ( code ) + printf( "unknown %d for char %lu, gid %u\n", code, i, gid ); + } + + return 0; +} + +/* EOF */ diff --git a/tests/meson.build b/tests/meson.build new file mode 100644 index 000000000..527998ffa --- /dev/null +++ b/tests/meson.build @@ -0,0 +1,14 @@ +test_issue_1063 = executable('issue-1063', + files([ 'issue-1063/main.c' ]), + dependencies: freetype_dep, +) + +test_env = ['FREETYPE_TESTS_DATA_DIR=' + + join_paths(meson.current_source_dir(), 'data')] + +test('issue-1063', + test_issue_1063, + env: test_env, + suite: 'regression') + +# EOF diff --git a/tests/scripts/download-test-fonts.py b/tests/scripts/download-test-fonts.py new file mode 100755 index 000000000..52b742e22 --- /dev/null +++ b/tests/scripts/download-test-fonts.py @@ -0,0 +1,302 @@ +#!/usr/bin/env python3 + +"""Download test fonts used by the FreeType regression test programs. These +will be copied to $FREETYPE/tests/data/ by default.""" + +import argparse +import collections +import hashlib +import io +import os +import requests +import sys +import zipfile + +from typing import Callable, List, Optional, Tuple + +# The list of download items describing the font files to install. Each +# download item is a dictionary with one of the following schemas: +# +# - File item: +# +# file_url +# Type: URL string. +# Required: Yes. +# Description: URL to download the file from. +# +# install_name +# Type: file name string +# Required: No +# Description: Installation name for the font file, only provided if +# it must be different from the original URL's basename. +# +# hex_digest +# Type: hexadecimal string +# Required: No +# Description: Digest of the input font file. +# +# - Zip items: +# +# These items correspond to one or more font files that are embedded in a +# remote zip archive. Each entry has the following fields: +# +# zip_url +# Type: URL string. +# Required: Yes. +# Description: URL to download the zip archive from. +# +# zip_files +# Type: List of file entries (see below) +# Required: Yes +# Description: A list of entries describing a single font file to be +# extracted from the archive +# +# Apart from that, some schemas are used for dictionaries used inside +# download items: +# +# - File entries: +# +# These are dictionaries describing a single font file to extract from an +# archive. +# +# filename +# Type: file path string +# Required: Yes +# Description: Path of source file, relative to the archive's +# top-level directory. +# +# install_name +# Type: file name string +# Required: No +# Description: Installation name for the font file; only provided if +# it must be different from the original filename value. +# +# hex_digest +# Type: hexadecimal string +# Required: No +# Description: Digest of the input source file +# +_DOWNLOAD_ITEMS = [ + { + "zip_url": "https://github.com/python-pillow/Pillow/files/6622147/As.I.Lay.Dying.zip", + "zip_files": [ + { + "filename": "As I Lay Dying.ttf", + "install_name": "As.I.Lay.Dying.ttf", + "hex_digest": "ef146bbc2673b387", + }, + ], + }, +] + + +def digest_data(data: bytes): + """Compute the digest of a given input byte string, which are the first + 8 bytes of its sha256 hash.""" + m = hashlib.sha256() + m.update(data) + return m.digest()[:8] + + +def check_existing(path: str, hex_digest: str): + """Return True if |path| exists and matches |hex_digest|.""" + if not os.path.exists(path) or hex_digest is None: + return False + + with open(path, "rb") as f: + existing_content = f.read() + + return bytes.fromhex(hex_digest) == digest_data(existing_content) + + +def install_file(content: bytes, dest_path: str): + """Write a byte string to a given destination file. + + Args: + content: Input data, as a byte string + dest_path: Installation path + """ + parent_path = os.path.dirname(dest_path) + if not os.path.exists(parent_path): + os.makedirs(parent_path) + + with open(dest_path, "wb") as f: + f.write(content) + + +def download_file(url: str, expected_digest: Optional[bytes] = None): + """Download a file from a given URL. + + Args: + url: Input URL + expected_digest: Optional digest of the file + as a byte string + Returns: + URL content as binary string. + """ + r = requests.get(url, allow_redirects=True) + content = r.content + if expected_digest is not None: + digest = digest_data(r.content) + if digest != expected_digest: + raise ValueError( + "%s has invalid digest %s (expected %s)" + % (url, digest.hex(), expected_digest.hex()) + ) + + return content + + +def extract_file_from_zip_archive( + archive: zipfile.ZipFile, + archive_name: str, + filepath: str, + expected_digest: Optional[bytes] = None, +): + """Extract a file from a given zipfile.ZipFile archive. + + Args: + archive: Input ZipFile objec. + archive_name: Archive name or URL, only used to generate a + human-readable error message. + + filepath: Input filepath in archive. + expected_digest: Optional digest for the file. + Returns: + A new File instance corresponding to the extract file. + Raises: + ValueError if expected_digest is not None and does not match the + extracted file. + """ + file = archive.open(filepath) + if expected_digest is not None: + digest = digest_data(archive.open(filepath).read()) + if digest != expected_digest: + raise ValueError( + "%s in zip archive at %s has invalid digest %s (expected %s)" + % (filepath, archive_name, digest.hex(), expected_digest.hex()) + ) + return file.read() + + +def _get_and_install_file( + install_path: str, + hex_digest: Optional[str], + force_download: bool, + get_content: Callable[[], bytes], +) -> bool: + if not force_download and hex_digest is not None \ + and os.path.exists(install_path): + with open(install_path, "rb") as f: + content: bytes = f.read() + if bytes.fromhex(hex_digest) == digest_data(content): + return False + + content = get_content() + install_file(content, install_path) + return True + + +def download_and_install_item( + item: dict, install_dir: str, force_download: bool +) -> List[Tuple[str, bool]]: + """Download and install one item. + + Args: + item: Download item as a dictionary, see above for schema. + install_dir: Installation directory. + force_download: Set to True to force download and installation, even + if the font file is already installed with the right content. + + Returns: + A list of (install_name, status) tuples, where 'install_name' is the + file's installation name under 'install_dir', and 'status' is a + boolean that is True to indicate that the file was downloaded and + installed, or False to indicate that the file is already installed + with the right content. + """ + if "file_url" in item: + file_url = item["file_url"] + install_name = item.get("install_name", os.path.basename(file_url)) + install_path = os.path.join(install_dir, install_name) + hex_digest = item.get("hex_digest") + + def get_content(): + return download_file(file_url, hex_digest) + + status = _get_and_install_file( + install_path, hex_digest, force_download, get_content + ) + return [(install_name, status)] + + if "zip_url" in item: + # One or more files from a zip archive. + archive_url = item["zip_url"] + archive = zipfile.ZipFile(io.BytesIO(download_file(archive_url))) + + result = [] + for f in item["zip_files"]: + filename = f["filename"] + install_name = f.get("install_name", filename) + hex_digest = f.get("hex_digest") + + def get_content(): + return extract_file_from_zip_archive( + archive, + archive_url, + filename, + bytes.fromhex(hex_digest) if hex_digest else None, + ) + + status = _get_and_install_file( + os.path.join(install_dir, install_name), + hex_digest, + force_download, + get_content, + ) + result.append((install_name, status)) + + return result + + else: + raise ValueError("Unknown download item schema: %s" % item) + + +def main(): + parser = argparse.ArgumentParser(description=__doc__) + + # Assume this script is under tests/scripts/ and tests/data/ + # is the default installation directory. + install_dir = os.path.normpath( + os.path.join(os.path.dirname(__file__), "..", "data") + ) + + parser.add_argument( + "--force", + action="store_true", + default=False, + help="Force download and installation of font files", + ) + + parser.add_argument( + "--install-dir", + default=install_dir, + help="Specify installation directory [%s]" % install_dir, + ) + + args = parser.parse_args() + + for item in _DOWNLOAD_ITEMS: + for install_name, status in download_and_install_item( + item, args.install_dir, args.force + ): + print("%s %s" % (install_name, + "INSTALLED" if status else "UP-TO-DATE")) + + return 0 + + +if __name__ == "__main__": + sys.exit(main()) + +# EOF diff --git a/version.sed b/version.sed deleted file mode 100644 index c281ff506..000000000 --- a/version.sed +++ /dev/null @@ -1,5 +0,0 @@ -#! /usr/bin/sed -nf - -s/^#define *FREETYPE_MAJOR *\([^ ][^ ]*\).*$/freetype_major="\1" ;/p -s/^#define *FREETYPE_MINOR *\([^ ][^ ]*\).*$/freetype_minor=".\1" ;/p -s/^#define *FREETYPE_PATCH *\([^ ][^ ]*\).*$/freetype_patch=".\1" ;/p diff --git a/vms_make.com b/vms_make.com index d0f4909c4..6e6337d2f 100644 --- a/vms_make.com +++ b/vms_make.com @@ -1,6 +1,6 @@ $! make FreeType 2 under OpenVMS $! -$! Copyright (C) 2003-2020 by +$! Copyright (C) 2003-2021 by $! David Turner, Robert Wilhelm, and Werner Lemberg. $! $! This file is part of the FreeType project, and may only be used, modified, |