| // 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" |
| |
| namespace ui { |
| namespace { |
| |
| #if defined(OS_WIN) |
| const base::FilePath::CharType kDefaultEglSoname[] = |
| FILE_PATH_LITERAL("libEGL.dll"); |
| const base::FilePath::CharType kDefaultGlesSoname[] = |
| FILE_PATH_LITERAL("libGLESv2.dll"); |
| const base::FilePath::CharType kAngleEglSoname[] = |
| FILE_PATH_LITERAL("libEGL.dll"); |
| const base::FilePath::CharType kAngleGlesSoname[] = |
| FILE_PATH_LITERAL("libGLESv2.dll"); |
| #else |
| #if defined(OS_FUCHSIA) |
| const base::FilePath::CharType kDefaultEglSoname[] = |
| FILE_PATH_LITERAL("libEGL.so"); |
| const base::FilePath::CharType kDefaultGlesSoname[] = |
| FILE_PATH_LITERAL("libGLESv2.so"); |
| #else // !defined(OS_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"); |
| #endif // !defined(OS_WIN) |
| |
| #if BUILDFLAG(ENABLE_SWIFTSHADER) |
| #if defined(OS_WIN) |
| const base::FilePath::CharType kGLESv2SwiftShaderLibraryName[] = |
| FILE_PATH_LITERAL("libGLESv2.dll"); |
| const base::FilePath::CharType kEGLSwiftShaderLibraryName[] = |
| FILE_PATH_LITERAL("libEGL.dll"); |
| #elif defined(OS_FUCHSIA) |
| const base::FilePath::CharType kGLESv2SwiftShaderLibraryName[] = |
| FILE_PATH_LITERAL("libswiftshader_libGLESv2.so"); |
| const base::FilePath::CharType kEGLSwiftShaderLibraryName[] = |
| FILE_PATH_LITERAL("libswiftshader_libEGL.so"); |
| #else // !defined(OS_WIN) && !defined(OS_FUCHSIA) |
| const base::FilePath::CharType kGLESv2SwiftShaderLibraryName[] = |
| FILE_PATH_LITERAL("libGLESv2.so"); |
| const base::FilePath::CharType kEGLSwiftShaderLibraryName[] = |
| FILE_PATH_LITERAL("libEGL.so"); |
| #endif // !defined(OS_WIN) && !defined(OS_FUCHSIA) |
| #endif // BUILDFLAG(ENABLE_SWIFTSHADER) |
| |
| 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); |
| gl::AddGLNativeLibrary(egl_library); |
| gl::AddGLNativeLibrary(gles_library); |
| |
| return true; |
| } |
| |
| } // namespace |
| |
| bool LoadDefaultEGLGLES2Bindings(gl::GLImplementation implementation) { |
| base::FilePath glesv2_path; |
| base::FilePath egl_path; |
| |
| if (implementation == gl::kGLImplementationSwiftShaderGL) { |
| #if BUILDFLAG(ENABLE_SWIFTSHADER) |
| base::FilePath module_path; |
| #if !defined(OS_FUCHSIA) |
| if (!base::PathService::Get(base::DIR_MODULE, &module_path)) |
| return false; |
| module_path = module_path.Append(FILE_PATH_LITERAL("swiftshader/")); |
| #endif |
| |
| glesv2_path = module_path.Append(kGLESv2SwiftShaderLibraryName); |
| egl_path = module_path.Append(kEGLSwiftShaderLibraryName); |
| #else |
| return false; |
| #endif |
| } else if (implementation == gl::kGLImplementationEGLANGLE) { |
| glesv2_path = base::FilePath(kAngleGlesSoname); |
| egl_path = base::FilePath(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 |