blob: 75c59f935976ef2c582944c21df16d598bf3e006 [file] [log] [blame]
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/ozone/common/egl_util.h"
#include "base/files/file_path.h"
#include "base/path_service.h"
#include "build/build_config.h"
#include "ui/gl/buildflags.h"
#include "ui/gl/egl_util.h"
#include "ui/gl/gl_bindings.h"
#include "ui/gl/gl_implementation.h"
#if BUILDFLAG(USE_OPENGL_APITRACE)
#include <stdlib.h>
#endif
namespace ui {
namespace {
#if BUILDFLAG(IS_FUCHSIA)
const base::FilePath::CharType kDefaultEglSoname[] =
FILE_PATH_LITERAL("libEGL.so");
const base::FilePath::CharType kDefaultGlesSoname[] =
FILE_PATH_LITERAL("libGLESv2.so");
#else // BUILDFLAG(IS_FUCHSIA)
const base::FilePath::CharType kDefaultEglSoname[] =
FILE_PATH_LITERAL("libEGL.so.1");
const base::FilePath::CharType kDefaultGlesSoname[] =
FILE_PATH_LITERAL("libGLESv2.so.2");
#endif
const base::FilePath::CharType kAngleEglSoname[] =
FILE_PATH_LITERAL("libEGL.so");
const base::FilePath::CharType kAngleGlesSoname[] =
FILE_PATH_LITERAL("libGLESv2.so");
bool LoadEGLGLES2Bindings(const base::FilePath& egl_library_path,
const base::FilePath& gles_library_path) {
base::NativeLibraryLoadError error;
base::NativeLibrary gles_library =
base::LoadNativeLibrary(gles_library_path, &error);
if (!gles_library) {
LOG(ERROR) << "Failed to load GLES library: " << gles_library_path << ": "
<< error.ToString();
return false;
}
base::NativeLibrary egl_library =
base::LoadNativeLibrary(base::FilePath(egl_library_path), &error);
if (!egl_library) {
LOG(ERROR) << "Failed to load EGL library: " << egl_library_path << ": "
<< error.ToString();
base::UnloadNativeLibrary(gles_library);
return false;
}
gl::GLGetProcAddressProc get_proc_address =
reinterpret_cast<gl::GLGetProcAddressProc>(
base::GetFunctionPointerFromNativeLibrary(egl_library,
"eglGetProcAddress"));
if (!get_proc_address) {
LOG(ERROR) << "eglGetProcAddress not found.";
base::UnloadNativeLibrary(egl_library);
base::UnloadNativeLibrary(gles_library);
return false;
}
gl::SetGLGetProcAddressProc(get_proc_address);
#if BUILDFLAG(USE_OPENGL_APITRACE)
constexpr char kTraceLibegl[] = "TRACE_LIBEGL";
constexpr char kTraceLibglesv2[] = "TRACE_LIBGLESV2";
constexpr char kTraceFile[] = "TRACE_FILE";
if (egl_library_path.BaseName().value() != kDefaultEglSoname) {
LOG(ERROR) << "Unsupported EGL library '"
<< egl_library_path.BaseName().value()
<< "'. egltrace may not work.";
}
if (gles_library_path.BaseName().value() != kDefaultGlesSoname) {
LOG(ERROR) << "Unsupported GLESv2 library '"
<< gles_library_path.BaseName().value()
<< "'. egltrace may not work.";
}
// Send correct library names to egttrace.
setenv(kTraceLibegl, egl_library_path.BaseName().value().c_str(),
/*overwrite=*/0);
setenv(kTraceLibglesv2, gles_library_path.BaseName().value().c_str(),
/*overwrite=*/0);
#if BUILDFLAG(IS_CHROMEOS)
setenv(kTraceFile, "/tmp/gltrace.dat", /*overwrite=*/0);
#else
if (!getenv(kTraceFile)) {
LOG(ERROR) << "egltrace requires valid TRACE_FILE environment variable but "
"none were found. Chrome will probably crash.";
}
#endif
LOG(WARNING) << "Loading egltrace.so with TRACE_LIBEGL="
<< getenv(kTraceLibegl)
<< " TRACE_LIBGLESV2=" << getenv(kTraceLibglesv2)
<< " TRACE_FILE=" << getenv(kTraceFile);
const base::FilePath::CharType kDefaultTraceSoname[] =
FILE_PATH_LITERAL("egltrace.so");
base::NativeLibrary trace_library =
base::LoadNativeLibrary(base::FilePath(kDefaultTraceSoname), &error);
if (!trace_library)
LOG(ERROR) << error.ToString();
gl::AddGLNativeLibrary(trace_library);
#endif
gl::AddGLNativeLibrary(egl_library);
gl::AddGLNativeLibrary(gles_library);
return true;
}
} // namespace
bool LoadDefaultEGLGLES2Bindings(
const gl::GLImplementationParts& implementation) {
base::FilePath glesv2_path;
base::FilePath egl_path;
if (implementation.gl == gl::kGLImplementationEGLANGLE) {
base::FilePath module_path;
#if !BUILDFLAG(IS_FUCHSIA)
if (!base::PathService::Get(base::DIR_MODULE, &module_path))
return false;
#endif
glesv2_path = module_path.Append(kAngleGlesSoname);
egl_path = module_path.Append(kAngleEglSoname);
} else {
glesv2_path = base::FilePath(kDefaultGlesSoname);
egl_path = base::FilePath(kDefaultEglSoname);
}
return LoadEGLGLES2Bindings(egl_path, glesv2_path);
}
EGLConfig ChooseEGLConfig(EGLDisplay display, const int32_t* attributes) {
int32_t num_configs;
if (!eglChooseConfig(display, attributes, nullptr, 0, &num_configs)) {
LOG(ERROR) << "eglChooseConfig failed with error "
<< GetLastEGLErrorString();
return nullptr;
}
if (num_configs == 0) {
LOG(ERROR) << "No suitable EGL configs found.";
return nullptr;
}
EGLConfig config;
if (!eglChooseConfig(display, attributes, &config, 1, &num_configs)) {
LOG(ERROR) << "eglChooseConfig failed with error "
<< GetLastEGLErrorString();
return nullptr;
}
return config;
}
} // namespace ui