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**
** Copyright 2006, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
// This source file is automatically generated
#pragma GCC diagnostic ignored "-Wunused-variable"
#pragma GCC diagnostic ignored "-Wunused-function"
#include "jni.h"
#include <nativehelper/JNIHelp.h>
#include <android_runtime/AndroidRuntime.h>
#include <utils/misc.h>
#include <assert.h>
#include <GLES/gl.h>
#include <GLES/glext.h>
// Work around differences between the generated name and the actual name.
#define glBlendEquation glBlendEquationOES
#define glBlendEquationSeparate glBlendEquationSeparateOES
#define glBlendFuncSeparate glBlendFuncSeparateOES
#define glGetTexGenfv glGetTexGenfvOES
#define glGetTexGeniv glGetTexGenivOES
#define glGetTexGenxv glGetTexGenxvOES
#define glTexGenf glTexGenfOES
#define glTexGenfv glTexGenfvOES
#define glTexGeni glTexGeniOES
#define glTexGeniv glTexGenivOES
#define glTexGenx glTexGenxOES
#define glTexGenxv glTexGenxvOES
/* special calls implemented in Android's GLES wrapper used to more
* efficiently bound-check passed arrays */
extern "C" {
GL_API void GL_APIENTRY glColorPointerBounds(GLint size, GLenum type, GLsizei stride,
const GLvoid *ptr, GLsizei count);
GL_API void GL_APIENTRY glNormalPointerBounds(GLenum type, GLsizei stride,
const GLvoid *pointer, GLsizei count);
GL_API void GL_APIENTRY glTexCoordPointerBounds(GLint size, GLenum type,
GLsizei stride, const GLvoid *pointer, GLsizei count);
GL_API void GL_APIENTRY glVertexPointerBounds(GLint size, GLenum type,
GLsizei stride, const GLvoid *pointer, GLsizei count);
GL_API void GL_APIENTRY glPointSizePointerOESBounds(GLenum type,
GLsizei stride, const GLvoid *pointer, GLsizei count);
GL_API void GL_APIENTRY glMatrixIndexPointerOESBounds(GLint size, GLenum type,
GLsizei stride, const GLvoid *pointer, GLsizei count);
GL_API void GL_APIENTRY glWeightPointerOESBounds(GLint size, GLenum type,
GLsizei stride, const GLvoid *pointer, GLsizei count);
}
static jclass G11ImplClass;
static jfieldID haveCheckedExtensionsID;
static jfieldID have_OES_blend_equation_separateID;
static jfieldID have_OES_blend_subtractID;
static jfieldID have_OES_framebuffer_objectID;
static jfieldID have_OES_texture_cube_mapID;
/* Cache method IDs each time the class is loaded. */
static void
nativeClassInit(JNIEnv *_env, jclass glImplClass)
{
jclass g11impClassLocal = _env->FindClass("com/google/android/gles_jni/GLImpl");
G11ImplClass = (jclass) _env->NewGlobalRef(g11impClassLocal);
haveCheckedExtensionsID = _env->GetFieldID(G11ImplClass, "haveCheckedExtensions", "Z");
have_OES_blend_equation_separateID = _env->GetFieldID(G11ImplClass, "have_OES_blend_equation_separate", "Z");
have_OES_blend_subtractID = _env->GetFieldID(G11ImplClass, "have_OES_blend_subtract", "Z");
have_OES_framebuffer_objectID = _env->GetFieldID(G11ImplClass, "have_OES_framebuffer_object", "Z");
have_OES_texture_cube_mapID = _env->GetFieldID(G11ImplClass, "have_OES_texture_cube_map", "Z");
}
static void *
getPointer(JNIEnv *_env, jobject buffer, jarray *array, jint *remaining, jint *offset)
{
jint position;
jint limit;
jint elementSizeShift;
jlong pointer;
pointer = jniGetNioBufferFields(_env, buffer, &position, &limit, &elementSizeShift);
*remaining = (limit - position) << elementSizeShift;
if (pointer != 0L) {
*array = nullptr;
pointer += position << elementSizeShift;
return reinterpret_cast<void*>(pointer);
}
*array = jniGetNioBufferBaseArray(_env, buffer);
*offset = jniGetNioBufferBaseArrayOffset(_env, buffer);
return nullptr;
}
static void
releasePointer(JNIEnv *_env, jarray array, void *data, jboolean commit)
{
_env->ReleasePrimitiveArrayCritical(array, data,
commit ? 0 : JNI_ABORT);
}
extern "C" {
extern char* __progname;
}
static void *
getDirectBufferPointer(JNIEnv *_env, jobject buffer) {
if (buffer == nullptr) {
return nullptr;
}
jint position;
jint limit;
jint elementSizeShift;
jlong pointer;
pointer = jniGetNioBufferFields(_env, buffer, &position, &limit, &elementSizeShift);
if (pointer == 0) {
jniThrowException(_env, "java/lang/IllegalArgumentException",
"Must use a native order direct Buffer");
return nullptr;
}
pointer += position << elementSizeShift;
return reinterpret_cast<void*>(pointer);
}
static int
getNumCompressedTextureFormats() {
int numCompressedTextureFormats = 0;
glGetIntegerv(GL_NUM_COMPRESSED_TEXTURE_FORMATS, &numCompressedTextureFormats);
return numCompressedTextureFormats;
}
// Check if the extension at the head of pExtensions is pExtension. Note that pExtensions is
// terminated by either 0 or space, while pExtension is terminated by 0.
static bool
extensionEqual(const GLubyte* pExtensions, const GLubyte* pExtension) {
while (true) {
char a = *pExtensions++;
char b = *pExtension++;
bool aEnd = a == '\0' || a == ' ';
bool bEnd = b == '\0';
if ( aEnd || bEnd) {
return aEnd == bEnd;
}
if ( a != b ) {
return false;
}
}
}
static const GLubyte*
nextExtension(const GLubyte* pExtensions) {
while (true) {
char a = *pExtensions++;
if ( a == '\0') {
return pExtensions-1;
} else if ( a == ' ') {
return pExtensions;
}
}
}
static bool
checkForExtension(const GLubyte* pExtensions, const GLubyte* pExtension) {
for (;*pExtensions != '\0'; pExtensions = nextExtension(pExtensions)) {
if (extensionEqual(pExtensions, pExtension)) {
return true;
}
}
return false;
}
static bool
supportsExtension(JNIEnv *_env, jobject impl, jfieldID fieldId) {
if (!_env->GetBooleanField(impl, haveCheckedExtensionsID)) {
_env->SetBooleanField(impl, haveCheckedExtensionsID, true);
const GLubyte* sExtensions = glGetString(GL_EXTENSIONS);
_env->SetBooleanField(impl, have_OES_blend_equation_separateID,
checkForExtension(sExtensions, (const GLubyte*) "GL_OES_blend_equation_separate"));
_env->SetBooleanField(impl, have_OES_blend_subtractID,
checkForExtension(sExtensions, (const GLubyte*) "GL_OES_blend_subtract"));
_env->SetBooleanField(impl, have_OES_framebuffer_objectID,
checkForExtension(sExtensions, (const GLubyte*) "GL_OES_framebuffer_object"));
_env->SetBooleanField(impl, have_OES_texture_cube_mapID,
checkForExtension(sExtensions, (const GLubyte*) "GL_OES_texture_cube_map"));
}
return _env->GetBooleanField(impl, fieldId);
}
// --------------------------------------------------------------------------
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