1// Copyright 2014 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#include "ui/gl/gl_implementation_osmesa.h" 6 7#include "base/files/file_path.h" 8#include "base/logging.h" 9#include "base/native_library.h" 10#include "base/path_service.h" 11#include "ui/gl/gl_bindings.h" 12#include "ui/gl/gl_gl_api_implementation.h" 13#include "ui/gl/gl_implementation.h" 14#include "ui/gl/gl_osmesa_api_implementation.h" 15 16namespace gfx { 17 18base::NativeLibrary LoadLibraryAndPrintError(const base::FilePath& filename) { 19 base::NativeLibraryLoadError error; 20 base::NativeLibrary library = base::LoadNativeLibrary(filename, &error); 21 if (!library) { 22 LOG(ERROR) << "Failed to load " << filename.MaybeAsASCII() << ": " 23 << error.ToString(); 24 return NULL; 25 } 26 return library; 27} 28 29base::NativeLibrary LoadLibraryAndPrintError(const char* filename) { 30 return LoadLibraryAndPrintError(base::FilePath(filename)); 31} 32 33bool InitializeStaticGLBindingsOSMesaGL() { 34 base::FilePath module_path; 35 if (!PathService::Get(base::DIR_MODULE, &module_path)) { 36 LOG(ERROR) << "PathService::Get failed."; 37 return false; 38 } 39 40 base::FilePath library_path = module_path.Append("libosmesa.so"); 41 base::NativeLibrary library = LoadLibraryAndPrintError(library_path); 42 if (!library) 43 return false; 44 45 GLGetProcAddressProc get_proc_address = 46 reinterpret_cast<GLGetProcAddressProc>( 47 base::GetFunctionPointerFromNativeLibrary(library, 48 "OSMesaGetProcAddress")); 49 if (!get_proc_address) { 50 LOG(ERROR) << "OSMesaGetProcAddress not found."; 51 base::UnloadNativeLibrary(library); 52 return false; 53 } 54 55 SetGLGetProcAddressProc(get_proc_address); 56 AddGLNativeLibrary(library); 57 SetGLImplementation(kGLImplementationOSMesaGL); 58 59 InitializeStaticGLBindingsGL(); 60 InitializeStaticGLBindingsOSMESA(); 61 return true; 62} 63 64} // namespace gfx 65