michael@0: // Modified from chromium/src/webkit/glue/gl_bindings_skia_cmd_buffer.cc
michael@0: 
michael@0: // Copyright (c) 2011 The Chromium Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: 
michael@0: #include "gl/GrGLExtensions.h"
michael@0: #include "gl/GrGLInterface.h"
michael@0: #include "gl/GrGLUtil.h"
michael@0: 
michael@0: #ifndef GL_GLEXT_PROTOTYPES
michael@0: #define GL_GLEXT_PROTOTYPES
michael@0: #endif
michael@0: 
michael@0: #include <GLES2/gl2.h>
michael@0: #include <GLES2/gl2ext.h>
michael@0: 
michael@0: #include <EGL/egl.h>
michael@0: 
michael@0: static GrGLInterface* create_es_interface(GrGLVersion version,
michael@0:                                           const GrGLExtensions& extensions) {
michael@0:     if (version < GR_GL_VER(2,0)) {
michael@0:         return NULL;
michael@0:     }
michael@0: 
michael@0:     GrGLInterface* interface = SkNEW(GrGLInterface);
michael@0:     interface->fStandard = kGLES_GrGLStandard;
michael@0:     GrGLInterface::Functions* functions = &interface->fFunctions;
michael@0: 
michael@0:     functions->fActiveTexture = glActiveTexture;
michael@0:     functions->fAttachShader = glAttachShader;
michael@0:     functions->fBindAttribLocation = glBindAttribLocation;
michael@0:     functions->fBindBuffer = glBindBuffer;
michael@0:     functions->fBindTexture = glBindTexture;
michael@0:     functions->fBindVertexArray = glBindVertexArrayOES;
michael@0:     functions->fBlendColor = glBlendColor;
michael@0:     functions->fBlendFunc = glBlendFunc;
michael@0:     functions->fBufferData = glBufferData;
michael@0:     functions->fBufferSubData = glBufferSubData;
michael@0:     functions->fClear = glClear;
michael@0:     functions->fClearColor = glClearColor;
michael@0:     functions->fClearStencil = glClearStencil;
michael@0:     functions->fColorMask = glColorMask;
michael@0:     functions->fCompileShader = glCompileShader;
michael@0:     functions->fCompressedTexImage2D = glCompressedTexImage2D;
michael@0:     functions->fCopyTexSubImage2D = glCopyTexSubImage2D;
michael@0:     functions->fCreateProgram = glCreateProgram;
michael@0:     functions->fCreateShader = glCreateShader;
michael@0:     functions->fCullFace = glCullFace;
michael@0:     functions->fDeleteBuffers = glDeleteBuffers;
michael@0:     functions->fDeleteProgram = glDeleteProgram;
michael@0:     functions->fDeleteShader = glDeleteShader;
michael@0:     functions->fDeleteTextures = glDeleteTextures;
michael@0:     functions->fDeleteVertexArrays = glDeleteVertexArraysOES;
michael@0:     functions->fDepthMask = glDepthMask;
michael@0:     functions->fDisable = glDisable;
michael@0:     functions->fDisableVertexAttribArray = glDisableVertexAttribArray;
michael@0:     functions->fDrawArrays = glDrawArrays;
michael@0:     functions->fDrawElements = glDrawElements;
michael@0:     functions->fEnable = glEnable;
michael@0:     functions->fEnableVertexAttribArray = glEnableVertexAttribArray;
michael@0:     functions->fFinish = glFinish;
michael@0:     functions->fFlush = glFlush;
michael@0:     functions->fFrontFace = glFrontFace;
michael@0:     functions->fGenBuffers = glGenBuffers;
michael@0:     functions->fGenerateMipmap = glGenerateMipmap;
michael@0:     functions->fGenTextures = glGenTextures;
michael@0:     functions->fGenVertexArrays = glGenVertexArraysOES;
michael@0:     functions->fGetBufferParameteriv = glGetBufferParameteriv;
michael@0:     functions->fGetError = glGetError;
michael@0:     functions->fGetIntegerv = glGetIntegerv;
michael@0:     functions->fGetProgramInfoLog = glGetProgramInfoLog;
michael@0:     functions->fGetProgramiv = glGetProgramiv;
michael@0:     functions->fGetShaderInfoLog = glGetShaderInfoLog;
michael@0:     functions->fGetShaderiv = glGetShaderiv;
michael@0:     functions->fGetString = glGetString;
michael@0: #if GL_ES_VERSION_30
michael@0:     functions->fGetStringi = glGetStringi;
michael@0: #else
michael@0:     functions->fGetStringi = (GrGLGetStringiProc) eglGetProcAddress("glGetStringi");
michael@0: #endif
michael@0:     functions->fGetUniformLocation = glGetUniformLocation;
michael@0:     functions->fLineWidth = glLineWidth;
michael@0:     functions->fLinkProgram = glLinkProgram;
michael@0:     functions->fPixelStorei = glPixelStorei;
michael@0:     functions->fReadPixels = glReadPixels;
michael@0:     functions->fScissor = glScissor;
michael@0: #if GR_GL_USE_NEW_SHADER_SOURCE_SIGNATURE
michael@0:     functions->fShaderSource = (GrGLShaderSourceProc) glShaderSource;
michael@0: #else
michael@0:     functions->fShaderSource = glShaderSource;
michael@0: #endif
michael@0:     functions->fStencilFunc = glStencilFunc;
michael@0:     functions->fStencilFuncSeparate = glStencilFuncSeparate;
michael@0:     functions->fStencilMask = glStencilMask;
michael@0:     functions->fStencilMaskSeparate = glStencilMaskSeparate;
michael@0:     functions->fStencilOp = glStencilOp;
michael@0:     functions->fStencilOpSeparate = glStencilOpSeparate;
michael@0:     functions->fTexImage2D = glTexImage2D;
michael@0:     functions->fTexParameteri = glTexParameteri;
michael@0:     functions->fTexParameteriv = glTexParameteriv;
michael@0:     functions->fTexSubImage2D = glTexSubImage2D;
michael@0: 
michael@0:     if (version >= GR_GL_VER(3,0)) {
michael@0: #if GL_ES_VERSION_3_0
michael@0:         functions->fTexStorage2D = glTexStorage2D;
michael@0: #else
michael@0:         functions->fTexStorage2D = (GrGLTexStorage2DProc) eglGetProcAddress("glTexStorage2D");
michael@0: #endif
michael@0:     } else {
michael@0: #if GL_EXT_texture_storage
michael@0:         functions->fTexStorage2D = glTexStorage2DEXT;
michael@0: #else
michael@0:         functions->fTexStorage2D = (GrGLTexStorage2DProc) eglGetProcAddress("glTexStorage2DEXT");
michael@0: #endif
michael@0:     }
michael@0: 
michael@0: #if GL_EXT_discard_framebuffer
michael@0:     functions->fDiscardFramebuffer = glDiscardFramebufferEXT;
michael@0: #endif
michael@0:     functions->fUniform1f = glUniform1f;
michael@0:     functions->fUniform1i = glUniform1i;
michael@0:     functions->fUniform1fv = glUniform1fv;
michael@0:     functions->fUniform1iv = glUniform1iv;
michael@0:     functions->fUniform2f = glUniform2f;
michael@0:     functions->fUniform2i = glUniform2i;
michael@0:     functions->fUniform2fv = glUniform2fv;
michael@0:     functions->fUniform2iv = glUniform2iv;
michael@0:     functions->fUniform3f = glUniform3f;
michael@0:     functions->fUniform3i = glUniform3i;
michael@0:     functions->fUniform3fv = glUniform3fv;
michael@0:     functions->fUniform3iv = glUniform3iv;
michael@0:     functions->fUniform4f = glUniform4f;
michael@0:     functions->fUniform4i = glUniform4i;
michael@0:     functions->fUniform4fv = glUniform4fv;
michael@0:     functions->fUniform4iv = glUniform4iv;
michael@0:     functions->fUniformMatrix2fv = glUniformMatrix2fv;
michael@0:     functions->fUniformMatrix3fv = glUniformMatrix3fv;
michael@0:     functions->fUniformMatrix4fv = glUniformMatrix4fv;
michael@0:     functions->fUseProgram = glUseProgram;
michael@0:     functions->fVertexAttrib4fv = glVertexAttrib4fv;
michael@0:     functions->fVertexAttribPointer = glVertexAttribPointer;
michael@0:     functions->fViewport = glViewport;
michael@0:     functions->fBindFramebuffer = glBindFramebuffer;
michael@0:     functions->fBindRenderbuffer = glBindRenderbuffer;
michael@0:     functions->fCheckFramebufferStatus = glCheckFramebufferStatus;
michael@0:     functions->fDeleteFramebuffers = glDeleteFramebuffers;
michael@0:     functions->fDeleteRenderbuffers = glDeleteRenderbuffers;
michael@0:     functions->fFramebufferRenderbuffer = glFramebufferRenderbuffer;
michael@0:     functions->fFramebufferTexture2D = glFramebufferTexture2D;
michael@0: 
michael@0:     if (version >= GR_GL_VER(3,0)) {
michael@0: #if GL_ES_VERSION_3_0
michael@0:         functions->fRenderbufferStorageMultisample = glRenderbufferStorageMultisample;
michael@0:         functions->fBlitFramebuffer = glBlitFramebuffer;
michael@0: #else
michael@0:         functions->fRenderbufferStorageMultisample = (GrGLRenderbufferStorageMultisampleProc) eglGetProcAddress("glRenderbufferStorageMultisample");
michael@0:         functions->fBlitFramebuffer = (GrGLBlitFramebufferProc) eglGetProcAddress("glBlitFramebuffer");
michael@0: #endif
michael@0:     }
michael@0: 
michael@0:     if (extensions.has("GL_EXT_multisampled_render_to_texture")) {
michael@0: #if GL_EXT_multisampled_render_to_texture
michael@0:         functions->fFramebufferTexture2DMultisample = glFramebufferTexture2DMultisampleEXT;
michael@0:         functions->fRenderbufferStorageMultisampleES2EXT = glRenderbufferStorageMultisampleEXT;
michael@0: #else
michael@0:         functions->fFramebufferTexture2DMultisample = (GrGLFramebufferTexture2DMultisampleProc) eglGetProcAddress("glFramebufferTexture2DMultisampleEXT");
michael@0:         functions->fRenderbufferStorageMultisampleES2EXT = (GrGLRenderbufferStorageMultisampleProc) eglGetProcAddress("glRenderbufferStorageMultisampleEXT");
michael@0: #endif
michael@0:     } else if (extensions.has("GL_IMG_multisampled_render_to_texture")) {
michael@0: #if GL_IMG_multisampled_render_to_texture
michael@0:         functions->fFramebufferTexture2DMultisample = glFramebufferTexture2DMultisampleIMG;
michael@0:         functions->fRenderbufferStorageMultisampleES2EXT = glRenderbufferStorageMultisampleIMG;
michael@0: #else
michael@0:         functions->fFramebufferTexture2DMultisample = (GrGLFramebufferTexture2DMultisampleProc) eglGetProcAddress("glFramebufferTexture2DMultisampleIMG");
michael@0:         functions->fRenderbufferStorageMultisampleES2EXT = (GrGLRenderbufferStorageMultisampleProc) eglGetProcAddress("glRenderbufferStorageMultisampleIMG");
michael@0: #endif
michael@0:     }
michael@0: 
michael@0:     functions->fGenFramebuffers = glGenFramebuffers;
michael@0:     functions->fGenRenderbuffers = glGenRenderbuffers;
michael@0:     functions->fGetFramebufferAttachmentParameteriv = glGetFramebufferAttachmentParameteriv;
michael@0:     functions->fGetRenderbufferParameteriv = glGetRenderbufferParameteriv;
michael@0:     functions->fRenderbufferStorage = glRenderbufferStorage;
michael@0: #if GL_OES_mapbuffer
michael@0:     functions->fMapBuffer = glMapBufferOES;
michael@0:     functions->fUnmapBuffer = glUnmapBufferOES;
michael@0: #else
michael@0:     functions->fMapBuffer = (GrGLMapBufferProc) eglGetProcAddress("glMapBufferOES");
michael@0:     functions->fUnmapBuffer = (GrGLUnmapBufferProc) eglGetProcAddress("glUnmapBufferOES");
michael@0: #endif
michael@0: 
michael@0:     if (extensions.has("GL_EXT_debug_marker")) {
michael@0:         functions->fInsertEventMarker = (GrGLInsertEventMarkerProc) eglGetProcAddress("glInsertEventMarkerEXT");
michael@0:         functions->fPushGroupMarker = (GrGLInsertEventMarkerProc) eglGetProcAddress("glPushGroupMarkerEXT");
michael@0:         functions->fPopGroupMarker = (GrGLPopGroupMarkerProc) eglGetProcAddress("glPopGropuMarkerEXT");
michael@0:     }
michael@0: 
michael@0:     return interface;
michael@0: }
michael@0: 
michael@0: static GrGLInterface* create_desktop_interface(GrGLVersion version,
michael@0:                                                const GrGLExtensions& extensions) {
michael@0:     // Currently this assumes a 4.4 context or later. Supporting lower GL versions would require
michael@0:     // getting suffixed versions of pointers for supported extensions.
michael@0:     if (version < GR_GL_VER(4,4)) {
michael@0:         return NULL;
michael@0:     }
michael@0: 
michael@0:     GrGLInterface* interface = SkNEW(GrGLInterface);
michael@0:     interface->fStandard = kGL_GrGLStandard;
michael@0:     GrGLInterface::Functions* functions = &interface->fFunctions;
michael@0: 
michael@0:     functions->fActiveTexture = (GrGLActiveTextureProc) eglGetProcAddress("glActiveTexture");
michael@0:     functions->fAttachShader = (GrGLAttachShaderProc) eglGetProcAddress("glAttachShader");
michael@0:     functions->fBeginQuery = (GrGLBeginQueryProc) eglGetProcAddress("glBeginQuery");
michael@0:     functions->fBindAttribLocation = (GrGLBindAttribLocationProc) eglGetProcAddress("glBindAttribLocation");
michael@0:     functions->fBindBuffer = (GrGLBindBufferProc) eglGetProcAddress("glBindBuffer");
michael@0:     functions->fBindFragDataLocation = (GrGLBindFragDataLocationProc) eglGetProcAddress("glBindFragDataLocation");
michael@0:     functions->fBindFragDataLocationIndexed = (GrGLBindFragDataLocationIndexedProc) eglGetProcAddress("glBindFragDataLocationIndexed");
michael@0:     functions->fBindFramebuffer = (GrGLBindFramebufferProc) eglGetProcAddress("glBindFramebuffer");
michael@0:     functions->fBindRenderbuffer = (GrGLBindRenderbufferProc) eglGetProcAddress("glBindRenderbuffer");
michael@0:     functions->fBindTexture = (GrGLBindTextureProc) eglGetProcAddress("glBindTexture");
michael@0:     functions->fBindVertexArray = (GrGLBindVertexArrayProc) eglGetProcAddress("glBindVertexArray");
michael@0:     functions->fBlendColor = (GrGLBlendColorProc) eglGetProcAddress("glBlendColor");
michael@0:     functions->fBlendFunc = (GrGLBlendFuncProc) eglGetProcAddress("glBlendFunc");
michael@0:     functions->fBlitFramebuffer = (GrGLBlitFramebufferProc) eglGetProcAddress("glBlitFramebuffer");
michael@0:     functions->fBufferData = (GrGLBufferDataProc) eglGetProcAddress("glBufferData");
michael@0:     functions->fBufferSubData = (GrGLBufferSubDataProc) eglGetProcAddress("glBufferSubData");
michael@0:     functions->fCheckFramebufferStatus = (GrGLCheckFramebufferStatusProc) eglGetProcAddress("glCheckFramebufferStatus");
michael@0:     functions->fClear = (GrGLClearProc) eglGetProcAddress("glClear");
michael@0:     functions->fClearColor = (GrGLClearColorProc) eglGetProcAddress("glClearColor");
michael@0:     functions->fClearStencil = (GrGLClearStencilProc) eglGetProcAddress("glClearStencil");
michael@0:     functions->fColorMask = (GrGLColorMaskProc) eglGetProcAddress("glColorMask");
michael@0:     functions->fCompileShader = (GrGLCompileShaderProc) eglGetProcAddress("glCompileShader");
michael@0:     functions->fCompressedTexImage2D = (GrGLCompressedTexImage2DProc) eglGetProcAddress("glCompressedTexImage2D");
michael@0:     functions->fCopyTexSubImage2D = (GrGLCopyTexSubImage2DProc) eglGetProcAddress("glCopyTexSubImage2D");
michael@0:     functions->fCreateProgram = (GrGLCreateProgramProc) eglGetProcAddress("glCreateProgram");
michael@0:     functions->fCreateShader = (GrGLCreateShaderProc) eglGetProcAddress("glCreateShader");
michael@0:     functions->fCullFace = (GrGLCullFaceProc) eglGetProcAddress("glCullFace");
michael@0:     functions->fDeleteBuffers = (GrGLDeleteBuffersProc) eglGetProcAddress("glDeleteBuffers");
michael@0:     functions->fDeleteFramebuffers = (GrGLDeleteFramebuffersProc) eglGetProcAddress("glDeleteFramebuffers");
michael@0:     functions->fDeleteProgram = (GrGLDeleteProgramProc) eglGetProcAddress("glDeleteProgram");
michael@0:     functions->fDeleteQueries = (GrGLDeleteQueriesProc) eglGetProcAddress("glDeleteQueries");
michael@0:     functions->fDeleteRenderbuffers = (GrGLDeleteRenderbuffersProc) eglGetProcAddress("glDeleteRenderbuffers");
michael@0:     functions->fDeleteShader = (GrGLDeleteShaderProc) eglGetProcAddress("glDeleteShader");
michael@0:     functions->fDeleteTextures = (GrGLDeleteTexturesProc) eglGetProcAddress("glDeleteTextures");
michael@0:     functions->fDeleteVertexArrays = (GrGLDeleteVertexArraysProc) eglGetProcAddress("glDeleteVertexArrays");
michael@0:     functions->fDepthMask = (GrGLDepthMaskProc) eglGetProcAddress("glDepthMask");
michael@0:     functions->fDisable = (GrGLDisableProc) eglGetProcAddress("glDisable");
michael@0:     functions->fDisableVertexAttribArray = (GrGLDisableVertexAttribArrayProc) eglGetProcAddress("glDisableVertexAttribArray");
michael@0:     functions->fDrawArrays = (GrGLDrawArraysProc) eglGetProcAddress("glDrawArrays");
michael@0:     functions->fDrawBuffer = (GrGLDrawBufferProc) eglGetProcAddress("glDrawBuffer");
michael@0:     functions->fDrawBuffers = (GrGLDrawBuffersProc) eglGetProcAddress("glDrawBuffers");
michael@0:     functions->fDrawElements = (GrGLDrawElementsProc) eglGetProcAddress("glDrawElements");
michael@0:     functions->fEnable = (GrGLEnableProc) eglGetProcAddress("glEnable");
michael@0:     functions->fEnableVertexAttribArray = (GrGLEnableVertexAttribArrayProc) eglGetProcAddress("glEnableVertexAttribArray");
michael@0:     functions->fEndQuery = (GrGLEndQueryProc) eglGetProcAddress("glEndQuery");
michael@0:     functions->fFinish = (GrGLFinishProc) eglGetProcAddress("glFinish");
michael@0:     functions->fFlush = (GrGLFlushProc) eglGetProcAddress("glFlush");
michael@0:     functions->fFramebufferRenderbuffer = (GrGLFramebufferRenderbufferProc) eglGetProcAddress("glFramebufferRenderbuffer");
michael@0:     functions->fFramebufferTexture2D = (GrGLFramebufferTexture2DProc) eglGetProcAddress("glFramebufferTexture2D");
michael@0:     functions->fFrontFace = (GrGLFrontFaceProc) eglGetProcAddress("glFrontFace");
michael@0:     functions->fGenBuffers = (GrGLGenBuffersProc) eglGetProcAddress("glGenBuffers");
michael@0:     functions->fGenFramebuffers = (GrGLGenFramebuffersProc) eglGetProcAddress("glGenFramebuffers");
michael@0:     functions->fGenerateMipmap = (GrGLGenerateMipmapProc) eglGetProcAddress("glGenerateMipmap");
michael@0:     functions->fGenQueries = (GrGLGenQueriesProc) eglGetProcAddress("glGenQueries");
michael@0:     functions->fGenRenderbuffers = (GrGLGenRenderbuffersProc) eglGetProcAddress("glGenRenderbuffers");
michael@0:     functions->fGenTextures = (GrGLGenTexturesProc) eglGetProcAddress("glGenTextures");
michael@0:     functions->fGenVertexArrays = (GrGLGenVertexArraysProc) eglGetProcAddress("glGenVertexArrays");
michael@0:     functions->fGetBufferParameteriv = (GrGLGetBufferParameterivProc) eglGetProcAddress("glGetBufferParameteriv");
michael@0:     functions->fGetError = (GrGLGetErrorProc) eglGetProcAddress("glGetError");
michael@0:     functions->fGetFramebufferAttachmentParameteriv = (GrGLGetFramebufferAttachmentParameterivProc) eglGetProcAddress("glGetFramebufferAttachmentParameteriv");
michael@0:     functions->fGetIntegerv = (GrGLGetIntegervProc) eglGetProcAddress("glGetIntegerv");
michael@0:     functions->fGetQueryObjecti64v = (GrGLGetQueryObjecti64vProc) eglGetProcAddress("glGetQueryObjecti64v");
michael@0:     functions->fGetQueryObjectiv = (GrGLGetQueryObjectivProc) eglGetProcAddress("glGetQueryObjectiv");
michael@0:     functions->fGetQueryObjectui64v = (GrGLGetQueryObjectui64vProc) eglGetProcAddress("glGetQueryObjectui64v");
michael@0:     functions->fGetQueryObjectuiv = (GrGLGetQueryObjectuivProc) eglGetProcAddress("glGetQueryObjectuiv");
michael@0:     functions->fGetQueryiv = (GrGLGetQueryivProc) eglGetProcAddress("glGetQueryiv");
michael@0:     functions->fGetProgramInfoLog = (GrGLGetProgramInfoLogProc) eglGetProcAddress("glGetProgramInfoLog");
michael@0:     functions->fGetProgramiv = (GrGLGetProgramivProc) eglGetProcAddress("glGetProgramiv");
michael@0:     functions->fGetRenderbufferParameteriv = (GrGLGetRenderbufferParameterivProc) eglGetProcAddress("glGetRenderbufferParameteriv");
michael@0:     functions->fGetShaderInfoLog = (GrGLGetShaderInfoLogProc) eglGetProcAddress("glGetShaderInfoLog");
michael@0:     functions->fGetShaderiv = (GrGLGetShaderivProc) eglGetProcAddress("glGetShaderiv");
michael@0:     functions->fGetString = (GrGLGetStringProc) eglGetProcAddress("glGetString");
michael@0:     functions->fGetStringi = (GrGLGetStringiProc) eglGetProcAddress("glGetStringi");
michael@0:     functions->fGetTexLevelParameteriv = (GrGLGetTexLevelParameterivProc) eglGetProcAddress("glGetTexLevelParameteriv");
michael@0:     functions->fGetUniformLocation = (GrGLGetUniformLocationProc) eglGetProcAddress("glGetUniformLocation");
michael@0:     functions->fLineWidth = (GrGLLineWidthProc) eglGetProcAddress("glLineWidth");
michael@0:     functions->fLinkProgram = (GrGLLinkProgramProc) eglGetProcAddress("glLinkProgram");
michael@0:     functions->fLoadIdentity = (GrGLLoadIdentityProc) eglGetProcAddress("glLoadIdentity");
michael@0:     functions->fLoadMatrixf = (GrGLLoadMatrixfProc) eglGetProcAddress("glLoadMatrixf");
michael@0:     functions->fMapBuffer = (GrGLMapBufferProc) eglGetProcAddress("glMapBuffer");
michael@0:     functions->fMatrixMode = (GrGLMatrixModeProc) eglGetProcAddress("glMatrixMode");
michael@0:     functions->fPixelStorei = (GrGLPixelStoreiProc) eglGetProcAddress("glPixelStorei");
michael@0:     functions->fQueryCounter = (GrGLQueryCounterProc) eglGetProcAddress("glQueryCounter");
michael@0:     functions->fReadBuffer = (GrGLReadBufferProc) eglGetProcAddress("glReadBuffer");
michael@0:     functions->fReadPixels = (GrGLReadPixelsProc) eglGetProcAddress("glReadPixels");
michael@0:     functions->fRenderbufferStorage = (GrGLRenderbufferStorageProc) eglGetProcAddress("glRenderbufferStorage");
michael@0:     functions->fRenderbufferStorageMultisample = (GrGLRenderbufferStorageMultisampleProc) eglGetProcAddress("glRenderbufferStorageMultisample");
michael@0:     functions->fScissor = (GrGLScissorProc) eglGetProcAddress("glScissor");
michael@0:     functions->fShaderSource = (GrGLShaderSourceProc) eglGetProcAddress("glShaderSource");
michael@0:     functions->fStencilFunc = (GrGLStencilFuncProc) eglGetProcAddress("glStencilFunc");
michael@0:     functions->fStencilFuncSeparate = (GrGLStencilFuncSeparateProc) eglGetProcAddress("glStencilFuncSeparate");
michael@0:     functions->fStencilMask = (GrGLStencilMaskProc) eglGetProcAddress("glStencilMask");
michael@0:     functions->fStencilMaskSeparate = (GrGLStencilMaskSeparateProc) eglGetProcAddress("glStencilMaskSeparate");
michael@0:     functions->fStencilOp = (GrGLStencilOpProc) eglGetProcAddress("glStencilOp");
michael@0:     functions->fStencilOpSeparate = (GrGLStencilOpSeparateProc) eglGetProcAddress("glStencilOpSeparate");
michael@0:     functions->fTexGenfv = (GrGLTexGenfvProc) eglGetProcAddress("glTexGenfv");
michael@0:     functions->fTexGeni = (GrGLTexGeniProc) eglGetProcAddress("glTexGeni");
michael@0:     functions->fTexImage2D = (GrGLTexImage2DProc) eglGetProcAddress("glTexImage2D");
michael@0:     functions->fTexParameteri = (GrGLTexParameteriProc) eglGetProcAddress("glTexParameteri");
michael@0:     functions->fTexParameteriv = (GrGLTexParameterivProc) eglGetProcAddress("glTexParameteriv");
michael@0:     functions->fTexSubImage2D = (GrGLTexSubImage2DProc) eglGetProcAddress("glTexSubImage2D");
michael@0:     functions->fTexStorage2D = (GrGLTexStorage2DProc) eglGetProcAddress("glTexStorage2D");
michael@0:     functions->fUniform1f = (GrGLUniform1fProc) eglGetProcAddress("glUniform1f");
michael@0:     functions->fUniform1i = (GrGLUniform1iProc) eglGetProcAddress("glUniform1i");
michael@0:     functions->fUniform1fv = (GrGLUniform1fvProc) eglGetProcAddress("glUniform1fv");
michael@0:     functions->fUniform1iv = (GrGLUniform1ivProc) eglGetProcAddress("glUniform1iv");
michael@0:     functions->fUniform2f = (GrGLUniform2fProc) eglGetProcAddress("glUniform2f");
michael@0:     functions->fUniform2i = (GrGLUniform2iProc) eglGetProcAddress("glUniform2i");
michael@0:     functions->fUniform2fv = (GrGLUniform2fvProc) eglGetProcAddress("glUniform2fv");
michael@0:     functions->fUniform2iv = (GrGLUniform2ivProc) eglGetProcAddress("glUniform2iv");
michael@0:     functions->fUniform3f = (GrGLUniform3fProc) eglGetProcAddress("glUniform3f");
michael@0:     functions->fUniform3i = (GrGLUniform3iProc) eglGetProcAddress("glUniform3i");
michael@0:     functions->fUniform3fv = (GrGLUniform3fvProc) eglGetProcAddress("glUniform3fv");
michael@0:     functions->fUniform3iv = (GrGLUniform3ivProc) eglGetProcAddress("glUniform3iv");
michael@0:     functions->fUniform4f = (GrGLUniform4fProc) eglGetProcAddress("glUniform4f");
michael@0:     functions->fUniform4i = (GrGLUniform4iProc) eglGetProcAddress("glUniform4i");
michael@0:     functions->fUniform4fv = (GrGLUniform4fvProc) eglGetProcAddress("glUniform4fv");
michael@0:     functions->fUniform4iv = (GrGLUniform4ivProc) eglGetProcAddress("glUniform4iv");
michael@0:     functions->fUniformMatrix2fv = (GrGLUniformMatrix2fvProc) eglGetProcAddress("glUniformMatrix2fv");
michael@0:     functions->fUniformMatrix3fv = (GrGLUniformMatrix3fvProc) eglGetProcAddress("glUniformMatrix3fv");
michael@0:     functions->fUniformMatrix4fv = (GrGLUniformMatrix4fvProc) eglGetProcAddress("glUniformMatrix4fv");
michael@0:     functions->fUnmapBuffer = (GrGLUnmapBufferProc) eglGetProcAddress("glUnmapBuffer");
michael@0:     functions->fUseProgram = (GrGLUseProgramProc) eglGetProcAddress("glUseProgram");
michael@0:     functions->fVertexAttrib4fv = (GrGLVertexAttrib4fvProc) eglGetProcAddress("glVertexAttrib4fv");
michael@0:     functions->fVertexAttribPointer = (GrGLVertexAttribPointerProc) eglGetProcAddress("glVertexAttribPointer");
michael@0:     functions->fViewport = (GrGLViewportProc) eglGetProcAddress("glViewport");
michael@0: 
michael@0:     if (extensions.has("GL_NV_path_rendering")) {
michael@0:         functions->fPathCommands = (GrGLPathCommandsProc) eglGetProcAddress("glPathCommandsNV");
michael@0:         functions->fPathCoords = (GrGLPathCoordsProc) eglGetProcAddress("glPathCoordsNV");
michael@0:         functions->fPathSubCommands = (GrGLPathSubCommandsProc) eglGetProcAddress("glPathSubCommandsNV");
michael@0:         functions->fPathSubCoords = (GrGLPathSubCoordsProc) eglGetProcAddress("glPathSubCoordsNV");
michael@0:         functions->fPathString = (GrGLPathStringProc) eglGetProcAddress("glPathStringNV");
michael@0:         functions->fPathGlyphs = (GrGLPathGlyphsProc) eglGetProcAddress("glPathGlyphsNV");
michael@0:         functions->fPathGlyphRange = (GrGLPathGlyphRangeProc) eglGetProcAddress("glPathGlyphRangeNV");
michael@0:         functions->fWeightPaths = (GrGLWeightPathsProc) eglGetProcAddress("glWeightPathsNV");
michael@0:         functions->fCopyPath = (GrGLCopyPathProc) eglGetProcAddress("glCopyPathNV");
michael@0:         functions->fInterpolatePaths = (GrGLInterpolatePathsProc) eglGetProcAddress("glInterpolatePathsNV");
michael@0:         functions->fTransformPath = (GrGLTransformPathProc) eglGetProcAddress("glTransformPathNV");
michael@0:         functions->fPathParameteriv = (GrGLPathParameterivProc) eglGetProcAddress("glPathParameterivNV");
michael@0:         functions->fPathParameteri = (GrGLPathParameteriProc) eglGetProcAddress("glPathParameteriNV");
michael@0:         functions->fPathParameterfv = (GrGLPathParameterfvProc) eglGetProcAddress("glPathParameterfvNV");
michael@0:         functions->fPathParameterf = (GrGLPathParameterfProc) eglGetProcAddress("glPathParameterfNV");
michael@0:         functions->fPathDashArray = (GrGLPathDashArrayProc) eglGetProcAddress("glPathDashArrayNV");
michael@0:         functions->fGenPaths = (GrGLGenPathsProc) eglGetProcAddress("glGenPathsNV");
michael@0:         functions->fDeletePaths = (GrGLDeletePathsProc) eglGetProcAddress("glDeletePathsNV");
michael@0:         functions->fIsPath = (GrGLIsPathProc) eglGetProcAddress("glIsPathNV");
michael@0:         functions->fPathStencilFunc = (GrGLPathStencilFuncProc) eglGetProcAddress("glPathStencilFuncNV");
michael@0:         functions->fPathStencilDepthOffset = (GrGLPathStencilDepthOffsetProc) eglGetProcAddress("glPathStencilDepthOffsetNV");
michael@0:         functions->fStencilFillPath = (GrGLStencilFillPathProc) eglGetProcAddress("glStencilFillPathNV");
michael@0:         functions->fStencilStrokePath = (GrGLStencilStrokePathProc) eglGetProcAddress("glStencilStrokePathNV");
michael@0:         functions->fStencilFillPathInstanced = (GrGLStencilFillPathInstancedProc) eglGetProcAddress("glStencilFillPathInstancedNV");
michael@0:         functions->fStencilStrokePathInstanced = (GrGLStencilStrokePathInstancedProc) eglGetProcAddress("glStencilStrokePathInstancedNV");
michael@0:         functions->fPathCoverDepthFunc = (GrGLPathCoverDepthFuncProc) eglGetProcAddress("glPathCoverDepthFuncNV");
michael@0:         functions->fPathColorGen = (GrGLPathColorGenProc) eglGetProcAddress("glPathColorGenNV");
michael@0:         functions->fPathTexGen = (GrGLPathTexGenProc) eglGetProcAddress("glPathTexGenNV");
michael@0:         functions->fPathFogGen = (GrGLPathFogGenProc) eglGetProcAddress("glPathFogGenNV");
michael@0:         functions->fCoverFillPath = (GrGLCoverFillPathProc) eglGetProcAddress("glCoverFillPathNV");
michael@0:         functions->fCoverStrokePath = (GrGLCoverStrokePathProc) eglGetProcAddress("glCoverStrokePathNV");
michael@0:         functions->fCoverFillPathInstanced = (GrGLCoverFillPathInstancedProc) eglGetProcAddress("glCoverFillPathInstancedNV");
michael@0:         functions->fCoverStrokePathInstanced = (GrGLCoverStrokePathInstancedProc) eglGetProcAddress("glCoverStrokePathInstancedNV");
michael@0:         functions->fGetPathParameteriv = (GrGLGetPathParameterivProc) eglGetProcAddress("glGetPathParameterivNV");
michael@0:         functions->fGetPathParameterfv = (GrGLGetPathParameterfvProc) eglGetProcAddress("glGetPathParameterfvNV");
michael@0:         functions->fGetPathCommands = (GrGLGetPathCommandsProc) eglGetProcAddress("glGetPathCommandsNV");
michael@0:         functions->fGetPathCoords = (GrGLGetPathCoordsProc) eglGetProcAddress("glGetPathCoordsNV");
michael@0:         functions->fGetPathDashArray = (GrGLGetPathDashArrayProc) eglGetProcAddress("glGetPathDashArrayNV");
michael@0:         functions->fGetPathMetrics = (GrGLGetPathMetricsProc) eglGetProcAddress("glGetPathMetricsNV");
michael@0:         functions->fGetPathMetricRange = (GrGLGetPathMetricRangeProc) eglGetProcAddress("glGetPathMetricRangeNV");
michael@0:         functions->fGetPathSpacing = (GrGLGetPathSpacingProc) eglGetProcAddress("glGetPathSpacingNV");
michael@0:         functions->fGetPathColorGeniv = (GrGLGetPathColorGenivProc) eglGetProcAddress("glGetPathColorGenivNV");
michael@0:         functions->fGetPathColorGenfv = (GrGLGetPathColorGenfvProc) eglGetProcAddress("glGetPathColorGenfvNV");
michael@0:         functions->fGetPathTexGeniv = (GrGLGetPathTexGenivProc) eglGetProcAddress("glGetPathTexGenivNV");
michael@0:         functions->fGetPathTexGenfv = (GrGLGetPathTexGenfvProc) eglGetProcAddress("glGetPathTexGenfvNV");
michael@0:         functions->fIsPointInFillPath = (GrGLIsPointInFillPathProc) eglGetProcAddress("glIsPointInFillPathNV");
michael@0:         functions->fIsPointInStrokePath = (GrGLIsPointInStrokePathProc) eglGetProcAddress("glIsPointInStrokePathNV");
michael@0:         functions->fGetPathLength = (GrGLGetPathLengthProc) eglGetProcAddress("glGetPathLengthNV");
michael@0:         functions->fPointAlongPath = (GrGLPointAlongPathProc) eglGetProcAddress("glPointAlongPathNV");
michael@0:     }
michael@0: 
michael@0:     if (extensions.has("GL_EXT_debug_marker")) {
michael@0:         functions->fInsertEventMarker = (GrGLInsertEventMarkerProc) eglGetProcAddress("glInsertEventMarkerEXT");
michael@0:         functions->fPushGroupMarker = (GrGLInsertEventMarkerProc) eglGetProcAddress("glPushGroupMarkerEXT");
michael@0:         functions->fPopGroupMarker = (GrGLPopGroupMarkerProc) eglGetProcAddress("glPopGropuMarkerEXT");
michael@0:     }
michael@0: 
michael@0:     return interface;
michael@0: }
michael@0: 
michael@0: const GrGLInterface* GrGLCreateNativeInterface() {
michael@0: 
michael@0:     GrGLGetStringiProc getStringi = (GrGLGetStringiProc) eglGetProcAddress("glGetStringi");
michael@0: 
michael@0:     const char* verStr = reinterpret_cast<const char*>(glGetString(GR_GL_VERSION));
michael@0:     GrGLVersion version = GrGLGetVersionFromString(verStr);
michael@0:     GrGLStandard standard = GrGLGetStandardInUseFromString(verStr);
michael@0: 
michael@0:     GrGLExtensions extensions;
michael@0:     if (!extensions.init(standard, glGetString, getStringi, glGetIntegerv)) {
michael@0:         return NULL;
michael@0:     }
michael@0: 
michael@0:     GrGLInterface* interface = NULL;
michael@0:     if (kGLES_GrGLStandard == standard) {
michael@0:         interface = create_es_interface(version, extensions);
michael@0:     } else if (kGL_GrGLStandard == standard) {
michael@0:         interface = create_desktop_interface(version, extensions);
michael@0:     }
michael@0: 
michael@0:     if (NULL != interface) {
michael@0:         interface->fExtensions.swap(&extensions);
michael@0:     }
michael@0: 
michael@0:     return interface;
michael@0: }