1 // Copyright 2013 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_linux.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 16 namespace gfx { 17 18 // Load a library, printing an error message on failure. LoadLibrary(const base::FilePath & filename)19base::NativeLibrary LoadLibrary(const base::FilePath& filename) { 20 std::string error; 21 base::NativeLibrary library = base::LoadNativeLibrary(filename, &error); 22 if (!library) { 23 DVLOG(1) << "Failed to load " << filename.MaybeAsASCII() << ": " << error; 24 return NULL; 25 } 26 return library; 27 } 28 LoadLibrary(const char * filename)29base::NativeLibrary LoadLibrary(const char* filename) { 30 return LoadLibrary(base::FilePath(filename)); 31 } 32 InitializeGLBindingsOSMesaGL()33bool InitializeGLBindingsOSMesaGL() { 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::NativeLibrary library = LoadLibrary(module_path.Append("libosmesa.so")); 41 if (!library) 42 return false; 43 44 GLGetProcAddressProc get_proc_address = 45 reinterpret_cast<GLGetProcAddressProc>( 46 base::GetFunctionPointerFromNativeLibrary(library, 47 "OSMesaGetProcAddress")); 48 if (!get_proc_address) { 49 LOG(ERROR) << "OSMesaGetProcAddress not found."; 50 base::UnloadNativeLibrary(library); 51 return false; 52 } 53 54 SetGLGetProcAddressProc(get_proc_address); 55 AddGLNativeLibrary(library); 56 SetGLImplementation(kGLImplementationOSMesaGL); 57 58 InitializeGLBindingsGL(); 59 InitializeGLBindingsOSMESA(); 60 return true; 61 } 62 63 } // namespace gfx 64