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| 1 // Copyright (c) 2012 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 "base/base_paths.h" | |
| 6 #include "base/command_line.h" | |
| 7 #include "base/file_path.h" | |
| 8 #include "base/logging.h" | |
| 9 #include "base/native_library.h" | |
| 10 #include "base/path_service.h" | |
| 11 #include "ui/gfx/gl/gl_bindings.h" | |
| 12 #include "ui/gfx/gl/gl_implementation.h" | |
| 13 | |
| 14 namespace gfx { | |
| 15 | |
| 16 namespace { | |
| 17 | |
| 18 void GL_BINDING_CALL MarshalClearDepthToClearDepthf(GLclampd depth) { | |
| 19 glClearDepthf(static_cast<GLclampf>(depth)); | |
| 20 } | |
| 21 | |
| 22 void GL_BINDING_CALL MarshalDepthRangeToDepthRangef(GLclampd z_near, | |
| 23 GLclampd z_far) { | |
| 24 glDepthRangef(static_cast<GLclampf>(z_near), static_cast<GLclampf>(z_far)); | |
| 25 } | |
| 26 | |
| 27 base::NativeLibrary LoadLibrary(const FilePath& filename) { | |
| 28 std::string error; | |
| 29 base::NativeLibrary library = base::LoadNativeLibrary(filename, &error); | |
| 30 if (!library) { | |
| 31 DVLOG(1) << "Failed to load " << filename.MaybeAsASCII() << ": " << error; | |
| 32 return NULL; | |
| 33 } | |
| 34 return library; | |
| 35 } | |
| 36 | |
| 37 base::NativeLibrary LoadLibrary(const char* filename) { | |
| 38 return LoadLibrary(FilePath(filename)); | |
| 39 } | |
| 40 | |
| 41 } // namespace anonymous | |
| 42 | |
| 43 void GetAllowedGLImplementations(std::vector<GLImplementation>* impls) { | |
| 44 impls->push_back(kGLImplementationEGLGLES2); | |
| 45 } | |
| 46 | |
| 47 bool InitializeGLBindings(GLImplementation implementation) { | |
| 48 // Prevent reinitialization with a different implementation. Once the gpu | |
| 49 // unit tests have initialized with kGLImplementationMock, we don't want to | |
| 50 // later switch to another GL implementation. | |
| 51 if (GetGLImplementation() != kGLImplementationNone) | |
| 52 return true; | |
| 53 | |
| 54 switch (implementation) { | |
| 55 case kGLImplementationEGLGLES2: { | |
| 56 base::NativeLibrary gles_library = LoadLibrary("libGLESv2.so"); | |
| 57 if (!gles_library) | |
| 58 return false; | |
| 59 base::NativeLibrary egl_library = LoadLibrary("libEGL.so"); | |
| 60 if (!egl_library) { | |
| 61 base::UnloadNativeLibrary(gles_library); | |
| 62 return false; | |
| 63 } | |
| 64 | |
| 65 GLGetProcAddressProc get_proc_address = | |
| 66 reinterpret_cast<GLGetProcAddressProc>( | |
| 67 base::GetFunctionPointerFromNativeLibrary( | |
| 68 egl_library, "eglGetProcAddress")); | |
| 69 if (!get_proc_address) { | |
| 70 LOG(ERROR) << "eglGetProcAddress not found."; | |
| 71 base::UnloadNativeLibrary(egl_library); | |
| 72 base::UnloadNativeLibrary(gles_library); | |
| 73 return false; | |
| 74 } | |
| 75 | |
| 76 SetGLGetProcAddressProc(get_proc_address); | |
| 77 AddGLNativeLibrary(egl_library); | |
| 78 AddGLNativeLibrary(gles_library); | |
| 79 SetGLImplementation(kGLImplementationEGLGLES2); | |
| 80 | |
| 81 InitializeGLBindingsGL(); | |
| 82 InitializeGLBindingsEGL(); | |
| 83 | |
| 84 // These two functions take single precision float rather than double | |
| 85 // precision float parameters in GLES. | |
| 86 ::gfx::g_glClearDepth = MarshalClearDepthToClearDepthf; | |
| 87 ::gfx::g_glDepthRange = MarshalDepthRangeToDepthRangef; | |
| 88 break; | |
| 89 } | |
| 90 case kGLImplementationMockGL: { | |
| 91 SetGLGetProcAddressProc(GetMockGLProcAddress); | |
| 92 SetGLImplementation(kGLImplementationMockGL); | |
| 93 InitializeGLBindingsGL(); | |
| 94 break; | |
| 95 } | |
| 96 default: | |
| 97 NOTIMPLEMENTED() << "InitializeGLBindings on Android"; | |
| 98 return false; | |
| 99 } | |
| 100 | |
| 101 return true; | |
| 102 } | |
| 103 | |
| 104 bool InitializeGLExtensionBindings(GLImplementation implementation, | |
| 105 GLContext* context) { | |
| 106 switch (implementation) { | |
| 107 case kGLImplementationEGLGLES2: | |
| 108 InitializeGLExtensionBindingsGL(context); | |
| 109 InitializeGLExtensionBindingsEGL(context); | |
| 110 break; | |
| 111 case kGLImplementationMockGL: | |
| 112 InitializeGLExtensionBindingsGL(context); | |
| 113 break; | |
| 114 default: | |
| 115 return false; | |
| 116 } | |
| 117 | |
| 118 return true; | |
| 119 } | |
| 120 | |
| 121 void InitializeDebugGLBindings() { | |
| 122 } | |
| 123 | |
| 124 void ClearGLBindings() { | |
| 125 ClearGLBindingsEGL(); | |
| 126 ClearGLBindingsGL(); | |
| 127 SetGLImplementation(kGLImplementationNone); | |
| 128 | |
| 129 UnloadGLNativeLibraries(); | |
| 130 } | |
| 131 | |
| 132 } // namespace gfx | |
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Chromium Code Reviews
Issue 10392068:
ui: Move gl/ directory out of gfx/, up to ui/. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src