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/*
* Copyright (C) 2018 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.
*/
#if defined(__ANDROID__)
#include "egl_angle_platform.h"
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#include <EGL/Platform.h>
#pragma GCC diagnostic pop
#include <android-base/properties.h>
#include <android/dlext.h>
#include <dlfcn.h>
#include <graphicsenv/GraphicsEnv.h>
#include <log/log.h>
#include <time.h>
#include <vndksupport/linker.h>
#include "Loader.h"
namespace angle {
constexpr int kAngleDlFlags = RTLD_LOCAL | RTLD_NOW;
static GetDisplayPlatformFunc angleGetDisplayPlatform = nullptr;
static ResetDisplayPlatformFunc angleResetDisplayPlatform = nullptr;
static time_t startTime = time(nullptr);
static const unsigned char* getTraceCategoryEnabledFlag(PlatformMethods* /*platform*/,
const char* /*categoryName*/) {
// Returning ptr to 'g' (non-zero) to ALWAYS enable tracing initially.
// This ptr is what will be passed into "category_group_enabled" of addTraceEvent
static const unsigned char traceEnabled = 'g';
return &traceEnabled;
}
static double monotonicallyIncreasingTime(PlatformMethods* /*platform*/) {
return difftime(time(nullptr), startTime);
}
static void logError(PlatformMethods* /*platform*/, const char* errorMessage) {
ALOGE("ANGLE Error:%s", errorMessage);
}
static void logWarning(PlatformMethods* /*platform*/, const char* warningMessage) {
ALOGW("ANGLE Warn:%s", warningMessage);
}
static void logInfo(PlatformMethods* /*platform*/, const char* infoMessage) {
ALOGD("ANGLE Info:%s", infoMessage);
}
static TraceEventHandle addTraceEvent(
PlatformMethods* /**platform*/, char phase, const unsigned char* /*category_group_enabled*/,
const char* name, unsigned long long /*id*/, double /*timestamp*/, int /*num_args*/,
const char** /*arg_names*/, const unsigned char* /*arg_types*/,
const unsigned long long* /*arg_values*/, unsigned char /*flags*/) {
switch (phase) {
case 'B': {
ATRACE_BEGIN(name);
break;
}
case 'E': {
ATRACE_END();
break;
}
case 'I': {
ATRACE_NAME(name);
break;
}
default:
// Could handle other event types here
break;
}
// Return any non-zero handle to avoid assert in ANGLE
TraceEventHandle result = 1.0;
return result;
}
static void assignAnglePlatformMethods(PlatformMethods* platformMethods) {
platformMethods->addTraceEvent = addTraceEvent;
platformMethods->getTraceCategoryEnabledFlag = getTraceCategoryEnabledFlag;
platformMethods->monotonicallyIncreasingTime = monotonicallyIncreasingTime;
platformMethods->logError = logError;
platformMethods->logWarning = logWarning;
platformMethods->logInfo = logInfo;
}
// Initialize function ptrs for ANGLE PlatformMethods struct, used for systrace
bool initializeAnglePlatform(EGLDisplay dpy) {
// Since we're inside libEGL, use dlsym to lookup fptr for ANGLEGetDisplayPlatform
android_namespace_t* ns = android::GraphicsEnv::getInstance().getAngleNamespace();
void* so = nullptr;
if (ns) {
// Loading from an APK, so hard-code the suffix to "_angle".
constexpr char kAngleEs2Lib[] = "libGLESv2_angle.so";
const android_dlextinfo dlextinfo = {
.flags = ANDROID_DLEXT_USE_NAMESPACE,
.library_namespace = ns,
};
so = android_dlopen_ext(kAngleEs2Lib, kAngleDlFlags, &dlextinfo);
if (so) {
ALOGD("dlopen_ext from APK (%s) success at %p", kAngleEs2Lib, so);
} else {
ALOGE("dlopen_ext(\"%s\") failed: %s", kAngleEs2Lib, dlerror());
return false;
}
} else {
// If we are here, ANGLE is loaded as built-in gl driver in the sphal.
// Get the specified ANGLE library filename suffix.
std::string angleEs2LibSuffix = android::base::GetProperty("ro.hardware.egl", "");
if (angleEs2LibSuffix.empty()) {
ALOGE("%s failed to get valid ANGLE library filename suffix!", __FUNCTION__);
return false;
}
std::string angleEs2LibName = "libGLESv2_" + angleEs2LibSuffix + ".so";
so = android_load_sphal_library(angleEs2LibName.c_str(), kAngleDlFlags);
if (so) {
ALOGD("dlopen (%s) success at %p", angleEs2LibName.c_str(), so);
} else {
ALOGE("%s failed to dlopen %s!", __FUNCTION__, angleEs2LibName.c_str());
return false;
}
}
angleGetDisplayPlatform =
reinterpret_cast<GetDisplayPlatformFunc>(dlsym(so, "ANGLEGetDisplayPlatform"));
if (!angleGetDisplayPlatform) {
ALOGE("dlsym lookup of ANGLEGetDisplayPlatform in libEGL_angle failed!");
return false;
}
angleResetDisplayPlatform =
reinterpret_cast<ResetDisplayPlatformFunc>(dlsym(so, "ANGLEResetDisplayPlatform"));
PlatformMethods* platformMethods = nullptr;
if (!((angleGetDisplayPlatform)(dpy, g_PlatformMethodNames, g_NumPlatformMethods, nullptr,
&platformMethods))) {
ALOGE("ANGLEGetDisplayPlatform call failed!");
return false;
}
if (platformMethods) {
assignAnglePlatformMethods(platformMethods);
} else {
ALOGE("In initializeAnglePlatform() platformMethods struct ptr is NULL. Not assigning "
"tracing function ptrs!");
}
return true;
}
void resetAnglePlatform(EGLDisplay dpy) {
if (angleResetDisplayPlatform) {
angleResetDisplayPlatform(dpy);
}
}
}; // namespace angle
#endif // __ANDROID__
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