| // Copyright 2016 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/gl/init/gl_initializer.h" |
| |
| #include "base/base_paths.h" |
| #include "base/command_line.h" |
| #include "base/files/file_path.h" |
| #include "base/logging.h" |
| #include "base/native_library.h" |
| #include "ui/gl/gl_bindings.h" |
| #include "ui/gl/gl_egl_api_implementation.h" |
| #include "ui/gl/gl_gl_api_implementation.h" |
| #include "ui/gl/gl_implementation_osmesa.h" |
| #include "ui/gl/gl_osmesa_api_implementation.h" |
| #include "ui/gl/gl_surface_egl.h" |
| |
| namespace gl { |
| namespace init { |
| |
| namespace { |
| |
| bool InitializeStaticEGLInternal() { |
| base::NativeLibrary gles_library = LoadLibraryAndPrintError("libGLESv2.so"); |
| if (!gles_library) |
| return false; |
| base::NativeLibrary egl_library = LoadLibraryAndPrintError("libEGL.so"); |
| if (!egl_library) { |
| base::UnloadNativeLibrary(gles_library); |
| return false; |
| } |
| |
| GLGetProcAddressProc get_proc_address = |
| reinterpret_cast<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; |
| } |
| |
| SetGLGetProcAddressProc(get_proc_address); |
| AddGLNativeLibrary(egl_library); |
| AddGLNativeLibrary(gles_library); |
| SetGLImplementation(kGLImplementationEGLGLES2); |
| |
| InitializeStaticGLBindingsGL(); |
| InitializeStaticGLBindingsEGL(); |
| |
| return true; |
| } |
| |
| } // namespace |
| |
| bool InitializeGLOneOffPlatform() { |
| switch (GetGLImplementation()) { |
| case kGLImplementationEGLGLES2: |
| if (!GLSurfaceEGL::InitializeOneOff()) { |
| LOG(ERROR) << "GLSurfaceEGL::InitializeOneOff failed."; |
| return false; |
| } |
| return true; |
| default: |
| return true; |
| } |
| } |
| |
| bool InitializeStaticGLBindings(GLImplementation implementation) { |
| // Prevent reinitialization with a different implementation. Once the gpu |
| // unit tests have initialized with kGLImplementationMock, we don't want to |
| // later switch to another GL implementation. |
| DCHECK_EQ(kGLImplementationNone, GetGLImplementation()); |
| |
| switch (implementation) { |
| case kGLImplementationEGLGLES2: |
| return InitializeStaticEGLInternal(); |
| case kGLImplementationOSMesaGL: |
| return InitializeStaticGLBindingsOSMesaGL(); |
| case kGLImplementationMockGL: |
| SetGLImplementation(kGLImplementationMockGL); |
| InitializeStaticGLBindingsGL(); |
| return true; |
| default: |
| NOTREACHED(); |
| } |
| |
| return false; |
| } |
| |
| void InitializeDebugGLBindings() { |
| InitializeDebugGLBindingsEGL(); |
| InitializeDebugGLBindingsGL(); |
| InitializeDebugGLBindingsOSMESA(); |
| } |
| |
| void ClearGLBindingsPlatform() { |
| ClearGLBindingsEGL(); |
| ClearGLBindingsGL(); |
| ClearGLBindingsOSMESA(); |
| } |
| |
| } // namespace init |
| } // namespace gl |