|  | 
 | /* | 
 |  * Copyright 2014 Google Inc. | 
 |  * | 
 |  * Use of this source code is governed by a BSD-style license that can be | 
 |  * found in the LICENSE file. | 
 |  */ | 
 |  | 
 |  | 
 | #include "GrGLAssembleInterface.h" | 
 | #include "GrGLUtil.h" | 
 |  | 
 | #define GET_PROC(F) functions->f ## F = (GrGL ## F ## Proc) get(ctx, "gl" #F) | 
 | #define GET_PROC_SUFFIX(F, S) functions->f ## F = (GrGL ## F ## Proc) get(ctx, "gl" #F #S) | 
 | #define GET_PROC_LOCAL(F) GrGL ## F ## Proc F = (GrGL ## F ## Proc) get(ctx, "gl" #F) | 
 |  | 
 | const GrGLInterface* GrGLAssembleInterface(void* ctx, GrGLGetProc get) { | 
 |     GET_PROC_LOCAL(GetString); | 
 |     if (NULL == GetString) { | 
 |         return NULL; | 
 |     } | 
 |  | 
 |     const char* verStr = reinterpret_cast<const char*>(GetString(GR_GL_VERSION)); | 
 |     if (NULL == verStr) { | 
 |         return NULL; | 
 |     } | 
 |  | 
 |     GrGLStandard standard = GrGLGetStandardInUseFromString(verStr); | 
 |  | 
 |     if (kGLES_GrGLStandard == standard) { | 
 |         return GrGLAssembleGLESInterface(ctx, get); | 
 |     } else if (kGL_GrGLStandard == standard) { | 
 |         return GrGLAssembleGLInterface(ctx, get); | 
 |     } | 
 |     return NULL; | 
 | } | 
 |  | 
 | const GrGLInterface* GrGLAssembleGLInterface(void* ctx, GrGLGetProc get) { | 
 |     GET_PROC_LOCAL(GetString); | 
 |     GET_PROC_LOCAL(GetStringi); | 
 |     GET_PROC_LOCAL(GetIntegerv); | 
 |  | 
 |     // GetStringi may be NULL depending on the GL version. | 
 |     if (NULL == GetString || NULL == GetIntegerv) { | 
 |         return NULL; | 
 |     } | 
 |  | 
 |     const char* versionString = (const char*) GetString(GR_GL_VERSION); | 
 |     GrGLVersion glVer = GrGLGetVersionFromString(versionString); | 
 |  | 
 |     if (glVer < GR_GL_VER(1,5) || GR_GL_INVALID_VER == glVer) { | 
 |         // We must have array and element_array buffer objects. | 
 |         return NULL; | 
 |     } | 
 |  | 
 |     GrGLExtensions extensions; | 
 |     if (!extensions.init(kGL_GrGLStandard, GetString, GetStringi, GetIntegerv)) { | 
 |         return NULL; | 
 |     } | 
 |  | 
 |     GrGLInterface* interface = SkNEW(GrGLInterface()); | 
 |     GrGLInterface::Functions* functions = &interface->fFunctions; | 
 |  | 
 |     GET_PROC(ActiveTexture); | 
 |     GET_PROC(AttachShader); | 
 |     GET_PROC(BindAttribLocation); | 
 |     GET_PROC(BindBuffer); | 
 |     if (glVer >= GR_GL_VER(3,0)) { | 
 |         GET_PROC(BindFragDataLocation); | 
 |     } | 
 |     GET_PROC(BeginQuery); | 
 |     GET_PROC(BindTexture); | 
 |     GET_PROC(BlendFunc); | 
 |  | 
 |     if (glVer >= GR_GL_VER(1,4) || | 
 |         extensions.has("GL_ARB_imaging") || | 
 |         extensions.has("GL_EXT_blend_color")) { | 
 |         GET_PROC(BlendColor); | 
 |     } | 
 |  | 
 |     GET_PROC(BufferData); | 
 |     GET_PROC(BufferSubData); | 
 |     GET_PROC(Clear); | 
 |     GET_PROC(ClearColor); | 
 |     GET_PROC(ClearStencil); | 
 |     GET_PROC(ColorMask); | 
 |     GET_PROC(CompileShader); | 
 |     GET_PROC(CompressedTexImage2D); | 
 |     GET_PROC(CompressedTexSubImage2D); | 
 |     GET_PROC(CopyTexSubImage2D); | 
 |     GET_PROC(CreateProgram); | 
 |     GET_PROC(CreateShader); | 
 |     GET_PROC(CullFace); | 
 |     GET_PROC(DeleteBuffers); | 
 |     GET_PROC(DeleteProgram); | 
 |     GET_PROC(DeleteQueries); | 
 |     GET_PROC(DeleteShader); | 
 |     GET_PROC(DeleteTextures); | 
 |     GET_PROC(DepthMask); | 
 |     GET_PROC(Disable); | 
 |     GET_PROC(DisableVertexAttribArray); | 
 |     GET_PROC(DrawArrays); | 
 |     GET_PROC(DrawBuffer); | 
 |     GET_PROC(DrawBuffers); | 
 |     GET_PROC(DrawElements); | 
 |     GET_PROC(Enable); | 
 |     GET_PROC(EnableVertexAttribArray); | 
 |     GET_PROC(EndQuery); | 
 |     GET_PROC(Finish); | 
 |     GET_PROC(Flush); | 
 |     GET_PROC(FrontFace); | 
 |     GET_PROC(GenBuffers); | 
 |     GET_PROC(GenerateMipmap); | 
 |     GET_PROC(GetBufferParameteriv); | 
 |     GET_PROC(GetError); | 
 |     GET_PROC(GetIntegerv); | 
 |     GET_PROC(GetQueryObjectiv); | 
 |     GET_PROC(GetQueryObjectuiv); | 
 |     if (glVer >= GR_GL_VER(3,3) || extensions.has("GL_ARB_timer_query")) { | 
 |         GET_PROC(GetQueryObjecti64v); | 
 |         GET_PROC(GetQueryObjectui64v); | 
 |         GET_PROC(QueryCounter); | 
 |     } else if (extensions.has("GL_EXT_timer_query")) { | 
 |         GET_PROC_SUFFIX(GetQueryObjecti64v, EXT); | 
 |         GET_PROC_SUFFIX(GetQueryObjectui64v, EXT); | 
 |     } | 
 |     GET_PROC(GetQueryiv); | 
 |     GET_PROC(GetProgramInfoLog); | 
 |     GET_PROC(GetProgramiv); | 
 |     GET_PROC(GetShaderInfoLog); | 
 |     GET_PROC(GetShaderiv); | 
 |     GET_PROC(GetString); | 
 |     GET_PROC(GetStringi); | 
 |     GET_PROC(GetShaderPrecisionFormat); | 
 |     GET_PROC(GetTexLevelParameteriv); | 
 |     GET_PROC(GenQueries); | 
 |     GET_PROC(GenTextures); | 
 |     GET_PROC(GetUniformLocation); | 
 |     GET_PROC(LineWidth); | 
 |     GET_PROC(LinkProgram); | 
 |     GET_PROC(MapBuffer); | 
 |     if (extensions.has("GL_EXT_direct_state_access")) { | 
 |         GET_PROC_SUFFIX(MatrixLoadf, EXT); | 
 |         GET_PROC_SUFFIX(MatrixLoadIdentity, EXT); | 
 |     } | 
 |     GET_PROC(PixelStorei); | 
 |     GET_PROC(ReadBuffer); | 
 |     GET_PROC(ReadPixels); | 
 |     GET_PROC(Scissor); | 
 |     GET_PROC(ShaderSource); | 
 |     GET_PROC(StencilFunc); | 
 |     GET_PROC(StencilFuncSeparate); | 
 |     GET_PROC(StencilMask); | 
 |     GET_PROC(StencilMaskSeparate); | 
 |     GET_PROC(StencilOp); | 
 |     GET_PROC(StencilOpSeparate); | 
 |     GET_PROC(TexImage2D); | 
 |     GET_PROC(TexParameteri); | 
 |     GET_PROC(TexParameteriv); | 
 |     if (glVer >= GR_GL_VER(4,2) || extensions.has("GL_ARB_texture_storage")) { | 
 |         GET_PROC(TexStorage2D); | 
 |     } else if (extensions.has("GL_EXT_texture_storage")) { | 
 |         GET_PROC_SUFFIX(TexStorage2D, EXT); | 
 |     } | 
 |     GET_PROC(TexSubImage2D); | 
 |     GET_PROC(Uniform1f); | 
 |     GET_PROC(Uniform1i); | 
 |     GET_PROC(Uniform1fv); | 
 |     GET_PROC(Uniform1iv); | 
 |     GET_PROC(Uniform2f); | 
 |     GET_PROC(Uniform2i); | 
 |     GET_PROC(Uniform2fv); | 
 |     GET_PROC(Uniform2iv); | 
 |     GET_PROC(Uniform3f); | 
 |     GET_PROC(Uniform3i); | 
 |     GET_PROC(Uniform3fv); | 
 |     GET_PROC(Uniform3iv); | 
 |     GET_PROC(Uniform4f); | 
 |     GET_PROC(Uniform4i); | 
 |     GET_PROC(Uniform4fv); | 
 |     GET_PROC(Uniform4iv); | 
 |     GET_PROC(UniformMatrix2fv); | 
 |     GET_PROC(UniformMatrix3fv); | 
 |     GET_PROC(UniformMatrix4fv); | 
 |     GET_PROC(UnmapBuffer); | 
 |     GET_PROC(UseProgram); | 
 |     GET_PROC(VertexAttrib1f); | 
 |     GET_PROC(VertexAttrib2fv); | 
 |     GET_PROC(VertexAttrib3fv); | 
 |     GET_PROC(VertexAttrib4fv); | 
 |     GET_PROC(VertexAttribPointer); | 
 |     GET_PROC(Viewport); | 
 |     GET_PROC(BindFragDataLocationIndexed); | 
 |  | 
 |     if (glVer >= GR_GL_VER(3,0) || extensions.has("GL_ARB_vertex_array_object")) { | 
 |         // no ARB suffix for GL_ARB_vertex_array_object | 
 |         GET_PROC(BindVertexArray); | 
 |         GET_PROC(GenVertexArrays); | 
 |         GET_PROC(DeleteVertexArrays); | 
 |     } else if (extensions.has("GL_APPLE_vertex_array_object")) { | 
 |         GET_PROC_SUFFIX(BindVertexArray, APPLE); | 
 |         GET_PROC_SUFFIX(GenVertexArrays, APPLE); | 
 |         GET_PROC_SUFFIX(DeleteVertexArrays, APPLE); | 
 |     } | 
 |  | 
 |     if (glVer >= GR_GL_VER(3,0) || extensions.has("GL_ARB_map_buffer_range")) { | 
 |         GET_PROC(MapBufferRange); | 
 |         GET_PROC(FlushMappedBufferRange); | 
 |     } | 
 |  | 
 |     // First look for GL3.0 FBO or GL_ARB_framebuffer_object (same since | 
 |     // GL_ARB_framebuffer_object doesn't use ARB suffix.) | 
 |     if (glVer >= GR_GL_VER(3,0) || extensions.has("GL_ARB_framebuffer_object")) { | 
 |         GET_PROC(GenFramebuffers); | 
 |         GET_PROC(GetFramebufferAttachmentParameteriv); | 
 |         GET_PROC(GetRenderbufferParameteriv); | 
 |         GET_PROC(BindFramebuffer); | 
 |         GET_PROC(FramebufferTexture2D); | 
 |         GET_PROC(CheckFramebufferStatus); | 
 |         GET_PROC(DeleteFramebuffers); | 
 |         GET_PROC(RenderbufferStorage); | 
 |         GET_PROC(GenRenderbuffers); | 
 |         GET_PROC(DeleteRenderbuffers); | 
 |         GET_PROC(FramebufferRenderbuffer); | 
 |         GET_PROC(BindRenderbuffer); | 
 |         GET_PROC(RenderbufferStorageMultisample); | 
 |         GET_PROC(BlitFramebuffer); | 
 |     } else if (extensions.has("GL_EXT_framebuffer_object")) { | 
 |         GET_PROC_SUFFIX(GenFramebuffers, EXT); | 
 |         GET_PROC_SUFFIX(GetFramebufferAttachmentParameteriv, EXT); | 
 |         GET_PROC_SUFFIX(GetRenderbufferParameteriv, EXT); | 
 |         GET_PROC_SUFFIX(BindFramebuffer, EXT); | 
 |         GET_PROC_SUFFIX(FramebufferTexture2D, EXT); | 
 |         GET_PROC_SUFFIX(CheckFramebufferStatus, EXT); | 
 |         GET_PROC_SUFFIX(DeleteFramebuffers, EXT); | 
 |         GET_PROC_SUFFIX(RenderbufferStorage, EXT); | 
 |         GET_PROC_SUFFIX(GenRenderbuffers, EXT); | 
 |         GET_PROC_SUFFIX(DeleteRenderbuffers, EXT); | 
 |         GET_PROC_SUFFIX(FramebufferRenderbuffer, EXT); | 
 |         GET_PROC_SUFFIX(BindRenderbuffer, EXT); | 
 |         if (extensions.has("GL_EXT_framebuffer_multisample")) { | 
 |             GET_PROC_SUFFIX(RenderbufferStorageMultisample, EXT); | 
 |         } | 
 |         if (extensions.has("GL_EXT_framebuffer_blit")) { | 
 |             GET_PROC_SUFFIX(BlitFramebuffer, EXT); | 
 |         } | 
 |     } else { | 
 |         // we must have FBOs | 
 |         delete interface; | 
 |         return NULL; | 
 |     } | 
 |  | 
 |     if (extensions.has("GL_NV_path_rendering")) { | 
 |         GET_PROC_SUFFIX(PathCommands, NV); | 
 |         GET_PROC_SUFFIX(PathCoords, NV); | 
 |         GET_PROC_SUFFIX(PathParameteri, NV); | 
 |         GET_PROC_SUFFIX(PathParameterf, NV); | 
 |         GET_PROC_SUFFIX(GenPaths, NV); | 
 |         GET_PROC_SUFFIX(DeletePaths, NV); | 
 |         GET_PROC_SUFFIX(IsPath, NV); | 
 |         GET_PROC_SUFFIX(PathStencilFunc, NV); | 
 |         GET_PROC_SUFFIX(StencilFillPath, NV); | 
 |         GET_PROC_SUFFIX(StencilStrokePath, NV); | 
 |         GET_PROC_SUFFIX(StencilFillPathInstanced, NV); | 
 |         GET_PROC_SUFFIX(StencilStrokePathInstanced, NV); | 
 |         GET_PROC_SUFFIX(PathTexGen, NV); | 
 |         GET_PROC_SUFFIX(CoverFillPath, NV); | 
 |         GET_PROC_SUFFIX(CoverStrokePath, NV); | 
 |         GET_PROC_SUFFIX(CoverFillPathInstanced, NV); | 
 |         GET_PROC_SUFFIX(CoverStrokePathInstanced, NV); | 
 |         // NV_path_rendering v1.2 (These methods may not be present) | 
 |         GET_PROC_SUFFIX(StencilThenCoverFillPath, NV); | 
 |         GET_PROC_SUFFIX(StencilThenCoverStrokePath, NV); | 
 |         GET_PROC_SUFFIX(StencilThenCoverFillPathInstanced, NV); | 
 |         GET_PROC_SUFFIX(StencilThenCoverStrokePathInstanced, NV); | 
 |         // NV_path_rendering v1.3 (These methods may not be present) | 
 |         GET_PROC_SUFFIX(ProgramPathFragmentInputGen, NV); | 
 |         GET_PROC_SUFFIX(PathMemoryGlyphIndexArray, NV); | 
 |     } | 
 |  | 
 |     if (extensions.has("GL_EXT_debug_marker")) { | 
 |         GET_PROC_SUFFIX(InsertEventMarker, EXT); | 
 |         GET_PROC_SUFFIX(PushGroupMarker, EXT); | 
 |         GET_PROC_SUFFIX(PopGroupMarker, EXT); | 
 |     } | 
 |  | 
 |     if (glVer >= GR_GL_VER(4,3) || extensions.has("GL_ARB_invalidate_subdata")) { | 
 |         GET_PROC(InvalidateBufferData); | 
 |         GET_PROC(InvalidateBufferSubData); | 
 |         GET_PROC(InvalidateFramebuffer); | 
 |         GET_PROC(InvalidateSubFramebuffer); | 
 |         GET_PROC(InvalidateTexImage); | 
 |         GET_PROC(InvalidateTexSubImage); | 
 |     } | 
 |  | 
 |     if (glVer >= GR_GL_VER(4,3) || extensions.has("GL_ARB_program_interface_query")) { | 
 |         GET_PROC(GetProgramResourceLocation); | 
 |     } | 
 |  | 
 |     interface->fStandard = kGL_GrGLStandard; | 
 |     interface->fExtensions.swap(&extensions); | 
 |  | 
 |     return interface; | 
 | } | 
 |  | 
 | const GrGLInterface* GrGLAssembleGLESInterface(void* ctx, GrGLGetProc get) { | 
 |     GET_PROC_LOCAL(GetString); | 
 |     if (NULL == GetString) { | 
 |         return NULL; | 
 |     } | 
 |  | 
 |     const char* verStr = reinterpret_cast<const char*>(GetString(GR_GL_VERSION)); | 
 |     GrGLVersion version = GrGLGetVersionFromString(verStr); | 
 |  | 
 |     if (version < GR_GL_VER(2,0)) { | 
 |         return NULL; | 
 |     } | 
 |  | 
 |     GET_PROC_LOCAL(GetIntegerv); | 
 |     GET_PROC_LOCAL(GetStringi); | 
 |     GrGLExtensions extensions; | 
 |     if (!extensions.init(kGLES_GrGLStandard, GetString, GetStringi, GetIntegerv)) { | 
 |         return NULL; | 
 |     } | 
 |  | 
 |     GrGLInterface* interface = SkNEW(GrGLInterface); | 
 |     GrGLInterface::Functions* functions = &interface->fFunctions; | 
 |  | 
 |     GET_PROC(ActiveTexture); | 
 |     GET_PROC(AttachShader); | 
 |     GET_PROC(BindAttribLocation); | 
 |     GET_PROC(BindBuffer); | 
 |     GET_PROC(BindTexture); | 
 |     GET_PROC_SUFFIX(BindVertexArray, OES); | 
 |     GET_PROC(BlendColor); | 
 |     GET_PROC(BlendFunc); | 
 |     GET_PROC(BufferData); | 
 |     GET_PROC(BufferSubData); | 
 |     GET_PROC(Clear); | 
 |     GET_PROC(ClearColor); | 
 |     GET_PROC(ClearStencil); | 
 |     GET_PROC(ColorMask); | 
 |     GET_PROC(CompileShader); | 
 |     GET_PROC(CompressedTexImage2D); | 
 |     GET_PROC(CompressedTexSubImage2D); | 
 |     GET_PROC(CopyTexSubImage2D); | 
 |     GET_PROC(CreateProgram); | 
 |     GET_PROC(CreateShader); | 
 |     GET_PROC(CullFace); | 
 |     GET_PROC(DeleteBuffers); | 
 |     GET_PROC(DeleteProgram); | 
 |     GET_PROC(DeleteShader); | 
 |     GET_PROC(DeleteTextures); | 
 |     GET_PROC_SUFFIX(DeleteVertexArrays, OES); | 
 |     GET_PROC(DepthMask); | 
 |     GET_PROC(Disable); | 
 |     GET_PROC(DisableVertexAttribArray); | 
 |     GET_PROC(DrawArrays); | 
 |     GET_PROC(DrawElements); | 
 |     GET_PROC(Enable); | 
 |     GET_PROC(EnableVertexAttribArray); | 
 |     GET_PROC(Finish); | 
 |     GET_PROC(Flush); | 
 |     GET_PROC(FrontFace); | 
 |     GET_PROC(GenBuffers); | 
 |     GET_PROC(GenerateMipmap); | 
 |     GET_PROC(GenTextures); | 
 |     GET_PROC_SUFFIX(GenVertexArrays, OES); | 
 |     GET_PROC(GetBufferParameteriv); | 
 |     GET_PROC(GetError); | 
 |     GET_PROC(GetIntegerv); | 
 |     GET_PROC(GetProgramInfoLog); | 
 |     GET_PROC(GetProgramiv); | 
 |     GET_PROC(GetShaderInfoLog); | 
 |     GET_PROC(GetShaderPrecisionFormat); | 
 |     GET_PROC(GetShaderiv); | 
 |     GET_PROC(GetString); | 
 |     GET_PROC(GetStringi); | 
 |     GET_PROC(GetUniformLocation); | 
 |     GET_PROC(LineWidth); | 
 |     GET_PROC(LinkProgram); | 
 |     GET_PROC(PixelStorei); | 
 |     GET_PROC(ReadPixels); | 
 |     GET_PROC(Scissor); | 
 |     GET_PROC(ShaderSource); | 
 |     GET_PROC(StencilFunc); | 
 |     GET_PROC(StencilFuncSeparate); | 
 |     GET_PROC(StencilMask); | 
 |     GET_PROC(StencilMaskSeparate); | 
 |     GET_PROC(StencilOp); | 
 |     GET_PROC(StencilOpSeparate); | 
 |     GET_PROC(TexImage2D); | 
 |     GET_PROC(TexParameteri); | 
 |     GET_PROC(TexParameteriv); | 
 |     GET_PROC(TexSubImage2D); | 
 |  | 
 |     if (version >= GR_GL_VER(3,0)) { | 
 |         GET_PROC(TexStorage2D); | 
 |     } else { | 
 |         GET_PROC_SUFFIX(TexStorage2D, EXT); | 
 |     } | 
 |  | 
 |     GET_PROC_SUFFIX(DiscardFramebuffer, EXT); | 
 |     GET_PROC(Uniform1f); | 
 |     GET_PROC(Uniform1i); | 
 |     GET_PROC(Uniform1fv); | 
 |     GET_PROC(Uniform1iv); | 
 |     GET_PROC(Uniform2f); | 
 |     GET_PROC(Uniform2i); | 
 |     GET_PROC(Uniform2fv); | 
 |     GET_PROC(Uniform2iv); | 
 |     GET_PROC(Uniform3f); | 
 |     GET_PROC(Uniform3i); | 
 |     GET_PROC(Uniform3fv); | 
 |     GET_PROC(Uniform3iv); | 
 |     GET_PROC(Uniform4f); | 
 |     GET_PROC(Uniform4i); | 
 |     GET_PROC(Uniform4fv); | 
 |     GET_PROC(Uniform4iv); | 
 |     GET_PROC(UniformMatrix2fv); | 
 |     GET_PROC(UniformMatrix3fv); | 
 |     GET_PROC(UniformMatrix4fv); | 
 |     GET_PROC(UseProgram); | 
 |     GET_PROC(VertexAttrib1f); | 
 |     GET_PROC(VertexAttrib2fv); | 
 |     GET_PROC(VertexAttrib3fv); | 
 |     GET_PROC(VertexAttrib4fv); | 
 |     GET_PROC(VertexAttribPointer); | 
 |     GET_PROC(Viewport); | 
 |     GET_PROC(BindFramebuffer); | 
 |     GET_PROC(BindRenderbuffer); | 
 |     GET_PROC(CheckFramebufferStatus); | 
 |     GET_PROC(DeleteFramebuffers); | 
 |     GET_PROC(DeleteRenderbuffers); | 
 |     GET_PROC(FramebufferRenderbuffer); | 
 |     GET_PROC(FramebufferTexture2D); | 
 |  | 
 |     if (version >= GR_GL_VER(3,0)) { | 
 |         GET_PROC(RenderbufferStorageMultisample); | 
 |         GET_PROC(BlitFramebuffer); | 
 |     } | 
 |  | 
 |     if (extensions.has("GL_EXT_multisampled_render_to_texture")) { | 
 |         GET_PROC_SUFFIX(FramebufferTexture2DMultisample, EXT); | 
 |         functions->fRenderbufferStorageMultisampleES2EXT = (GrGLRenderbufferStorageMultisampleProc) get(ctx, "glRenderbufferStorageMultisampleEXT"); | 
 |     } else if (extensions.has("GL_IMG_multisampled_render_to_texture")) { | 
 |         GET_PROC_SUFFIX(FramebufferTexture2DMultisample, IMG); | 
 |         functions->fRenderbufferStorageMultisampleES2EXT = (GrGLRenderbufferStorageMultisampleProc) get(ctx, "glRenderbufferStorageMultisampleIMG"); | 
 |     } else if (extensions.has("GL_APPLE_framebuffer_multisample")) { | 
 |         functions->fRenderbufferStorageMultisampleES2APPLE = (GrGLRenderbufferStorageMultisampleProc) get(ctx, "glRenderbufferStorageMultisampleAPPLE"); | 
 |         GET_PROC_SUFFIX(ResolveMultisampleFramebuffer, APPLE); | 
 |     } | 
 |  | 
 |     GET_PROC(GenFramebuffers); | 
 |     GET_PROC(GenRenderbuffers); | 
 |     GET_PROC(GetFramebufferAttachmentParameteriv); | 
 |     GET_PROC(GetRenderbufferParameteriv); | 
 |     GET_PROC(RenderbufferStorage); | 
 |  | 
 |     GET_PROC_SUFFIX(MapBuffer, OES); | 
 |     GET_PROC_SUFFIX(UnmapBuffer, OES); | 
 |  | 
 |     if (version >= GR_GL_VER(3,0)) { | 
 |         GET_PROC(MapBufferRange); | 
 |         GET_PROC(FlushMappedBufferRange); | 
 |     } else if (extensions.has("GL_EXT_map_buffer_range")) { | 
 |         GET_PROC_SUFFIX(MapBufferRange, EXT); | 
 |         GET_PROC_SUFFIX(FlushMappedBufferRange, EXT); | 
 |     } | 
 |  | 
 |     if (extensions.has("GL_EXT_debug_marker")) { | 
 |         GET_PROC(InsertEventMarker); | 
 |         GET_PROC(PushGroupMarker); | 
 |         GET_PROC(PopGroupMarker); | 
 |         // The below check is here because a device has been found that has the extension string but | 
 |         // returns NULL from the eglGetProcAddress for the functions | 
 |         if (NULL == functions->fInsertEventMarker || | 
 |             NULL == functions->fPushGroupMarker || | 
 |             NULL == functions->fPopGroupMarker) { | 
 |             extensions.remove("GL_EXT_debug_marker"); | 
 |         } | 
 |     } | 
 |  | 
 |     GET_PROC(InvalidateFramebuffer); | 
 |     GET_PROC(InvalidateSubFramebuffer); | 
 |     GET_PROC(InvalidateBufferData); | 
 |     GET_PROC(InvalidateBufferSubData); | 
 |     GET_PROC(InvalidateTexImage); | 
 |     GET_PROC(InvalidateTexSubImage); | 
 |  | 
 |     if (version >= GR_GL_VER(3,1)) { | 
 |         GET_PROC(GetProgramResourceLocation); | 
 |     } | 
 |  | 
 |     if (extensions.has("GL_NV_path_rendering")) { | 
 |         GET_PROC_SUFFIX(MatrixLoadf, EXT); | 
 |         GET_PROC_SUFFIX(MatrixLoadIdentity, EXT); | 
 |         GET_PROC_SUFFIX(PathCommands, NV); | 
 |         GET_PROC_SUFFIX(PathCoords, NV); | 
 |         GET_PROC_SUFFIX(PathParameteri, NV); | 
 |         GET_PROC_SUFFIX(PathParameterf, NV); | 
 |         GET_PROC_SUFFIX(GenPaths, NV); | 
 |         GET_PROC_SUFFIX(DeletePaths, NV); | 
 |         GET_PROC_SUFFIX(IsPath, NV); | 
 |         GET_PROC_SUFFIX(PathStencilFunc, NV); | 
 |         GET_PROC_SUFFIX(StencilFillPath, NV); | 
 |         GET_PROC_SUFFIX(StencilStrokePath, NV); | 
 |         GET_PROC_SUFFIX(StencilFillPathInstanced, NV); | 
 |         GET_PROC_SUFFIX(StencilStrokePathInstanced, NV); | 
 |         GET_PROC_SUFFIX(CoverFillPath, NV); | 
 |         GET_PROC_SUFFIX(CoverStrokePath, NV); | 
 |         GET_PROC_SUFFIX(CoverFillPathInstanced, NV); | 
 |         GET_PROC_SUFFIX(CoverStrokePathInstanced, NV); | 
 |         GET_PROC_SUFFIX(StencilThenCoverFillPath, NV); | 
 |         GET_PROC_SUFFIX(StencilThenCoverStrokePath, NV); | 
 |         GET_PROC_SUFFIX(StencilThenCoverFillPathInstanced, NV); | 
 |         GET_PROC_SUFFIX(StencilThenCoverStrokePathInstanced, NV); | 
 |         GET_PROC_SUFFIX(ProgramPathFragmentInputGen, NV); | 
 |         GET_PROC_SUFFIX(PathMemoryGlyphIndexArray, NV); | 
 |     } | 
 |  | 
 |     interface->fStandard = kGLES_GrGLStandard; | 
 |     interface->fExtensions.swap(&extensions); | 
 |  | 
 |     return interface; | 
 | } |