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comparison: gfx/skia/trunk/src/gpu/gl/mac/GrGLCreateNativeInterface_mac.cpp
gfx/skia/trunk/src/gpu/gl/mac/GrGLCreateNativeInterface_mac.cpp
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| -1:000000000000 | 0:526886d4639e |
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| 1 | |
| 2 /* | |
| 3 * Copyright 2011 Google Inc. | |
| 4 * | |
| 5 * Use of this source code is governed by a BSD-style license that can be | |
| 6 * found in the LICENSE file. | |
| 7 */ | |
| 8 | |
| 9 | |
| 10 #include "gl/GrGLInterface.h" | |
| 11 #include "../GrGLUtil.h" | |
| 12 | |
| 13 #include <dlfcn.h> | |
| 14 | |
| 15 // We get the proc addresss of all GL functions dynamically because we sometimes link against | |
| 16 // alternative GL implementations (e.g. MESA) in addition to the native GL implementation. | |
| 17 class GLLoader { | |
| 18 public: | |
| 19 GLLoader() { | |
| 20 fLibrary = dlopen( | |
| 21 "/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib", | |
| 22 RTLD_LAZY); | |
| 23 } | |
| 24 ~GLLoader() { | |
| 25 if (NULL != fLibrary) { | |
| 26 dlclose(fLibrary); | |
| 27 } | |
| 28 } | |
| 29 void* handle() { | |
| 30 return NULL == fLibrary ? RTLD_DEFAULT : fLibrary; | |
| 31 } | |
| 32 private: | |
| 33 void* fLibrary; | |
| 34 }; | |
| 35 | |
| 36 static void* GetProcAddress(const char* name) { | |
| 37 static GLLoader gLoader; | |
| 38 return dlsym(gLoader.handle(), name); | |
| 39 } | |
| 40 | |
| 41 #define GET_PROC(name) (interface->fFunctions.f ## name = ((GrGL ## name ## Proc) GetProcAddress("gl" #name))) | |
| 42 #define GET_PROC_SUFFIX(name, suffix) (interface->fFunctions.f ## name = ((GrGL ## name ## Proc) GetProcAddress("gl" #name #suffix))) | |
| 43 | |
| 44 const GrGLInterface* GrGLCreateNativeInterface() { | |
| 45 | |
| 46 GrGLGetStringProc glGetString = (GrGLGetStringProc) GetProcAddress("glGetString"); | |
| 47 GrGLGetStringiProc glGetStringi = (GrGLGetStringiProc) GetProcAddress("glGetStringi"); | |
| 48 GrGLGetIntegervProc glGetIntegerv = (GrGLGetIntegervProc) GetProcAddress("glGetIntegerv"); | |
| 49 | |
| 50 const char* verStr = (const char*) glGetString(GR_GL_VERSION); | |
| 51 GrGLVersion ver = GrGLGetVersionFromString(verStr); | |
| 52 GrGLExtensions extensions; | |
| 53 if (!extensions.init(kGL_GrGLStandard, glGetString, glGetStringi, glGetIntegerv)) { | |
| 54 return NULL; | |
| 55 } | |
| 56 | |
| 57 GrGLInterface* interface = SkNEW(GrGLInterface); | |
| 58 interface->fStandard = kGL_GrGLStandard; | |
| 59 | |
| 60 GET_PROC(ActiveTexture); | |
| 61 GET_PROC(AttachShader); | |
| 62 GET_PROC(BeginQuery); | |
| 63 GET_PROC(BindAttribLocation); | |
| 64 GET_PROC(BindBuffer); | |
| 65 if (ver >= GR_GL_VER(3,0)) { | |
| 66 GET_PROC(BindFragDataLocation); | |
| 67 } | |
| 68 GET_PROC(BindTexture); | |
| 69 GET_PROC(BlendFunc); | |
| 70 | |
| 71 if (ver >= GR_GL_VER(1,4) || | |
| 72 extensions.has("GL_ARB_imaging") || | |
| 73 extensions.has("GL_EXT_blend_color")) { | |
| 74 GET_PROC(BlendColor); | |
| 75 } | |
| 76 | |
| 77 GET_PROC(BufferData); | |
| 78 GET_PROC(BufferSubData); | |
| 79 GET_PROC(Clear); | |
| 80 GET_PROC(ClearColor); | |
| 81 GET_PROC(ClearStencil); | |
| 82 GET_PROC(ColorMask); | |
| 83 GET_PROC(CompileShader); | |
| 84 GET_PROC(CompressedTexImage2D); | |
| 85 GET_PROC(CopyTexSubImage2D); | |
| 86 GET_PROC(CreateProgram); | |
| 87 GET_PROC(CreateShader); | |
| 88 GET_PROC(CullFace); | |
| 89 GET_PROC(DeleteBuffers); | |
| 90 GET_PROC(DeleteProgram); | |
| 91 GET_PROC(DeleteQueries); | |
| 92 GET_PROC(DeleteShader); | |
| 93 GET_PROC(DeleteTextures); | |
| 94 GET_PROC(DepthMask); | |
| 95 GET_PROC(Disable); | |
| 96 GET_PROC(DisableVertexAttribArray); | |
| 97 GET_PROC(DrawArrays); | |
| 98 GET_PROC(DrawBuffer); | |
| 99 GET_PROC(DrawBuffers); | |
| 100 GET_PROC(DrawElements); | |
| 101 GET_PROC(Enable); | |
| 102 GET_PROC(EnableVertexAttribArray); | |
| 103 GET_PROC(EndQuery); | |
| 104 GET_PROC(Finish); | |
| 105 GET_PROC(Flush); | |
| 106 GET_PROC(FrontFace); | |
| 107 GET_PROC(GenBuffers); | |
| 108 GET_PROC(GenerateMipmap); | |
| 109 GET_PROC(GenQueries); | |
| 110 GET_PROC(GetBufferParameteriv); | |
| 111 GET_PROC(GetError); | |
| 112 GET_PROC(GetIntegerv); | |
| 113 GET_PROC(GetProgramInfoLog); | |
| 114 GET_PROC(GetProgramiv); | |
| 115 GET_PROC(GetQueryiv); | |
| 116 GET_PROC(GetQueryObjectiv); | |
| 117 GET_PROC(GetQueryObjectuiv); | |
| 118 GET_PROC(GetShaderInfoLog); | |
| 119 GET_PROC(GetShaderiv); | |
| 120 GET_PROC(GetString); | |
| 121 GET_PROC(GetStringi); | |
| 122 GET_PROC(GetTexLevelParameteriv); | |
| 123 GET_PROC(GenTextures); | |
| 124 GET_PROC(GetUniformLocation); | |
| 125 GET_PROC(LineWidth); | |
| 126 GET_PROC(LinkProgram); | |
| 127 GET_PROC(LoadIdentity); | |
| 128 GET_PROC(LoadMatrixf); | |
| 129 GET_PROC(MapBuffer); | |
| 130 GET_PROC(MatrixMode); | |
| 131 GET_PROC(PixelStorei); | |
| 132 GET_PROC(ReadBuffer); | |
| 133 GET_PROC(ReadPixels); | |
| 134 GET_PROC(Scissor); | |
| 135 GET_PROC(ShaderSource); | |
| 136 GET_PROC(StencilFunc); | |
| 137 GET_PROC(StencilFuncSeparate); | |
| 138 GET_PROC(StencilMask); | |
| 139 GET_PROC(StencilMaskSeparate); | |
| 140 GET_PROC(StencilOp); | |
| 141 GET_PROC(StencilOpSeparate); | |
| 142 GET_PROC(TexGenfv); | |
| 143 GET_PROC(TexGeni); | |
| 144 GET_PROC(TexImage2D); | |
| 145 GET_PROC(TexParameteri); | |
| 146 GET_PROC(TexParameteriv); | |
| 147 if (ver >= GR_GL_VER(4,2) || extensions.has("GL_ARB_texture_storage")) { | |
| 148 GET_PROC(TexStorage2D); | |
| 149 } else if (extensions.has("GL_EXT_texture_storage")) { | |
| 150 GET_PROC_SUFFIX(TexStorage2D, EXT); | |
| 151 } | |
| 152 GET_PROC(TexSubImage2D); | |
| 153 GET_PROC(Uniform1f); | |
| 154 GET_PROC(Uniform1i); | |
| 155 GET_PROC(Uniform1fv); | |
| 156 GET_PROC(Uniform1iv); | |
| 157 GET_PROC(Uniform2f); | |
| 158 GET_PROC(Uniform2i); | |
| 159 GET_PROC(Uniform2fv); | |
| 160 GET_PROC(Uniform2iv); | |
| 161 GET_PROC(Uniform3f); | |
| 162 GET_PROC(Uniform3i); | |
| 163 GET_PROC(Uniform3fv); | |
| 164 GET_PROC(Uniform3iv); | |
| 165 GET_PROC(Uniform4f); | |
| 166 GET_PROC(Uniform4i); | |
| 167 GET_PROC(Uniform4fv); | |
| 168 GET_PROC(Uniform4iv); | |
| 169 GET_PROC(Uniform4fv); | |
| 170 GET_PROC(UniformMatrix2fv); | |
| 171 GET_PROC(UniformMatrix3fv); | |
| 172 GET_PROC(UniformMatrix4fv); | |
| 173 GET_PROC(UnmapBuffer); | |
| 174 GET_PROC(UseProgram); | |
| 175 GET_PROC(VertexAttrib4fv); | |
| 176 GET_PROC(VertexAttribPointer); | |
| 177 GET_PROC(Viewport); | |
| 178 | |
| 179 if (ver >= GR_GL_VER(3,0) || extensions.has("GL_ARB_vertex_array_object")) { | |
| 180 // no ARB suffix for GL_ARB_vertex_array_object | |
| 181 GET_PROC(BindVertexArray); | |
| 182 GET_PROC(DeleteVertexArrays); | |
| 183 GET_PROC(GenVertexArrays); | |
| 184 } | |
| 185 | |
| 186 if (ver >= GR_GL_VER(3,3) || extensions.has("GL_ARB_timer_query")) { | |
| 187 // ARB extension doesn't use the ARB suffix on the function name | |
| 188 GET_PROC(QueryCounter); | |
| 189 GET_PROC(GetQueryObjecti64v); | |
| 190 GET_PROC(GetQueryObjectui64v); | |
| 191 } else if (extensions.has("GL_EXT_timer_query")) { | |
| 192 GET_PROC_SUFFIX(GetQueryObjecti64v, EXT); | |
| 193 GET_PROC_SUFFIX(GetQueryObjectui64v, EXT); | |
| 194 } | |
| 195 | |
| 196 if (ver >= GR_GL_VER(3,0) || extensions.has("GL_ARB_framebuffer_object")) { | |
| 197 // ARB extension doesn't use the ARB suffix on the function names | |
| 198 GET_PROC(GenFramebuffers); | |
| 199 GET_PROC(GetFramebufferAttachmentParameteriv); | |
| 200 GET_PROC(GetRenderbufferParameteriv); | |
| 201 GET_PROC(BindFramebuffer); | |
| 202 GET_PROC(FramebufferTexture2D); | |
| 203 GET_PROC(CheckFramebufferStatus); | |
| 204 GET_PROC(DeleteFramebuffers); | |
| 205 GET_PROC(RenderbufferStorage); | |
| 206 GET_PROC(GenRenderbuffers); | |
| 207 GET_PROC(DeleteRenderbuffers); | |
| 208 GET_PROC(FramebufferRenderbuffer); | |
| 209 GET_PROC(BindRenderbuffer); | |
| 210 GET_PROC(RenderbufferStorageMultisample); | |
| 211 GET_PROC(BlitFramebuffer); | |
| 212 } else { | |
| 213 if (extensions.has("GL_EXT_framebuffer_object")) { | |
| 214 GET_PROC_SUFFIX(GenFramebuffers, EXT); | |
| 215 GET_PROC_SUFFIX(GetFramebufferAttachmentParameteriv, EXT); | |
| 216 GET_PROC_SUFFIX(GetRenderbufferParameteriv, EXT); | |
| 217 GET_PROC_SUFFIX(BindFramebuffer, EXT); | |
| 218 GET_PROC_SUFFIX(FramebufferTexture2D, EXT); | |
| 219 GET_PROC_SUFFIX(CheckFramebufferStatus, EXT); | |
| 220 GET_PROC_SUFFIX(DeleteFramebuffers, EXT); | |
| 221 GET_PROC_SUFFIX(RenderbufferStorage, EXT); | |
| 222 GET_PROC_SUFFIX(GenRenderbuffers, EXT); | |
| 223 GET_PROC_SUFFIX(DeleteRenderbuffers, EXT); | |
| 224 GET_PROC_SUFFIX(FramebufferRenderbuffer, EXT); | |
| 225 GET_PROC_SUFFIX(BindRenderbuffer, EXT); | |
| 226 } | |
| 227 if (extensions.has("GL_EXT_framebuffer_multisample")) { | |
| 228 GET_PROC_SUFFIX(RenderbufferStorageMultisample, EXT); | |
| 229 } | |
| 230 if (extensions.has("GL_EXT_framebuffer_blit")) { | |
| 231 GET_PROC_SUFFIX(BlitFramebuffer, EXT); | |
| 232 } | |
| 233 } | |
| 234 if (ver >= GR_GL_VER(3,3) || extensions.has("GL_ARB_blend_func_extended")) { | |
| 235 // ARB extension doesn't use the ARB suffix on the function name | |
| 236 GET_PROC(BindFragDataLocationIndexed); | |
| 237 } | |
| 238 | |
| 239 if (extensions.has("GL_EXT_debug_marker")) { | |
| 240 GET_PROC_SUFFIX(InsertEventMarker, EXT); | |
| 241 GET_PROC_SUFFIX(PushGroupMarker, EXT); | |
| 242 GET_PROC_SUFFIX(PopGroupMarker, EXT); | |
| 243 } | |
| 244 | |
| 245 interface->fExtensions.swap(&extensions); | |
| 246 return interface; | |
| 247 } |
