/* * Copyright 2011 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #include "gl/GrGLInterface.h" #include "../GrGLUtil.h" #include #include #include static void* GetProcAddress(const char* name) { return dlsym(RTLD_DEFAULT, name); } #define GET_PROC(name) (interface->f ## name = ((GrGL ## name ## Proc) GetProcAddress("gl" #name))) #define GET_PROC_SUFFIX(name, suffix) (interface->f ## name = ((GrGL ## name ## Proc) GetProcAddress("gl" #name #suffix))) const GrGLInterface* GrGLCreateNativeInterface() { // The gl functions are not context-specific so we create one global // interface static SkAutoTUnref glInterface; if (!glInterface.get()) { GrGLInterface* interface = new GrGLInterface; glInterface.reset(interface); const char* verStr = (const char*) glGetString(GL_VERSION); GrGLVersion ver = GrGLGetVersionFromString(verStr); const char* extStr = (const char*) glGetString(GL_EXTENSIONS); interface->fBindingsExported = kDesktop_GrGLBinding; interface->fActiveTexture = glActiveTexture; interface->fAttachShader = glAttachShader; interface->fBeginQuery = glBeginQuery; interface->fBindAttribLocation = glBindAttribLocation; interface->fBindBuffer = glBindBuffer; if (ver >= GR_GL_VER(3,0)) { #if GL_VERSION_3_0 interface->fBindFragDataLocation = glBindFragDataLocation; #else interface->fBindFragDataLocation = GET_PROC(BindFragDataLocation); #endif } interface->fBindTexture = glBindTexture; interface->fBlendFunc = glBlendFunc; if (ver >= GR_GL_VER(1,4)) { interface->fBlendColor = glBlendColor; interface->fBlendEquation = glBlendEquation; } else if (GrGLHasExtensionFromString("GL_ARB_imaging", extStr)) { GET_PROC(BlendColor); GET_PROC(BlendEquation); } else { if (GrGLHasExtensionFromString("GL_EXT_blend_color", extStr)) { GET_PROC_SUFFIX(BlendColor, EXT); } if (GrGLHasExtensionFromString("GL_EXT_blend_minmax", extStr) || GrGLHasExtensionFromString("GL_EXT_blend_subtract", extStr)) { GET_PROC_SUFFIX(BlendEquation, EXT); } } interface->fBufferData = glBufferData; interface->fBufferSubData = glBufferSubData; interface->fClear = glClear; interface->fClearColor = glClearColor; interface->fClearStencil = glClearStencil; interface->fColorMask = glColorMask; interface->fColorPointer = glColorPointer; interface->fCompileShader = glCompileShader; interface->fCompressedTexImage2D = glCompressedTexImage2D; interface->fCreateProgram = glCreateProgram; interface->fCreateShader = glCreateShader; interface->fCullFace = glCullFace; interface->fDeleteBuffers = glDeleteBuffers; interface->fDeleteProgram = glDeleteProgram; interface->fDeleteQueries = glDeleteQueries; interface->fDeleteShader = glDeleteShader; interface->fDeleteTextures = glDeleteTextures; interface->fDepthMask = glDepthMask; interface->fDisable = glDisable; interface->fDisableVertexAttribArray = glDisableVertexAttribArray; interface->fDrawArrays = glDrawArrays; interface->fDrawBuffer = glDrawBuffer; interface->fDrawBuffers = glDrawBuffers; interface->fDrawElements = glDrawElements; interface->fEnable = glEnable; interface->fEnableVertexAttribArray = glEnableVertexAttribArray; interface->fEndQuery = glEndQuery; interface->fFinish = glFinish; interface->fFlush = glFlush; interface->fFrontFace = glFrontFace; interface->fGenBuffers = glGenBuffers; interface->fGenQueries = glGenQueries; interface->fGetBufferParameteriv = glGetBufferParameteriv; interface->fGetError = glGetError; interface->fGetIntegerv = glGetIntegerv; interface->fGetProgramInfoLog = glGetProgramInfoLog; interface->fGetProgramiv = glGetProgramiv; interface->fGetQueryiv = glGetQueryiv; interface->fGetQueryObjectiv = glGetQueryObjectiv; interface->fGetQueryObjectuiv = glGetQueryObjectuiv; interface->fGetShaderInfoLog = glGetShaderInfoLog; interface->fGetShaderiv = glGetShaderiv; interface->fGetString = glGetString; interface->fGetTexLevelParameteriv = glGetTexLevelParameteriv; interface->fGenTextures = glGenTextures; interface->fGetUniformLocation = glGetUniformLocation; interface->fLineWidth = glLineWidth; interface->fLinkProgram = glLinkProgram; interface->fMapBuffer = glMapBuffer; interface->fPixelStorei = glPixelStorei; interface->fReadBuffer = glReadBuffer; interface->fReadPixels = glReadPixels; interface->fScissor = glScissor; interface->fShaderSource = glShaderSource; interface->fStencilFunc = glStencilFunc; interface->fStencilFuncSeparate = glStencilFuncSeparate; interface->fStencilMask = glStencilMask; interface->fStencilMaskSeparate = glStencilMaskSeparate; interface->fStencilOp = glStencilOp; interface->fStencilOpSeparate = glStencilOpSeparate; // mac uses GLenum for internalFormat param (non-standard) // amounts to int vs. uint. interface->fTexImage2D = (GrGLTexImage2DProc)glTexImage2D; interface->fTexParameteri = glTexParameteri; interface->fTexParameteriv = glTexParameteriv; #if GL_ARB_texture_storage || GL_VERSION_4_2 interface->fTexStorage2D = glTexStorage2D #elif GL_EXT_texture_storage interface->fTexStorage2D = glTexStorage2DEXT; #else if (ver >= GR_GL_VER(4,2) || GrGLHasExtensionFromString("GL_ARB_texture_storage", extStr)) { GET_PROC(TexStorage2D); } else if (GrGLHasExtensionFromString("GL_EXT_texture_storage", extStr)) { GET_PROC_SUFFIX(TexStorage2D, EXT); } #endif interface->fTexSubImage2D = glTexSubImage2D; interface->fUniform1f = glUniform1f; interface->fUniform1i = glUniform1i; interface->fUniform1fv = glUniform1fv; interface->fUniform1iv = glUniform1iv; interface->fUniform2f = glUniform2f; interface->fUniform2i = glUniform2i; interface->fUniform2fv = glUniform2fv; interface->fUniform2iv = glUniform2iv; interface->fUniform3f = glUniform3f; interface->fUniform3i = glUniform3i; interface->fUniform3fv = glUniform3fv; interface->fUniform3iv = glUniform3iv; interface->fUniform4f = glUniform4f; interface->fUniform4i = glUniform4i; interface->fUniform4fv = glUniform4fv; interface->fUniform4iv = glUniform4iv; interface->fUniform4fv = glUniform4fv; interface->fUniformMatrix2fv = glUniformMatrix2fv; interface->fUniformMatrix3fv = glUniformMatrix3fv; interface->fUniformMatrix4fv = glUniformMatrix4fv; interface->fUnmapBuffer = glUnmapBuffer; interface->fUseProgram = glUseProgram; interface->fVertexAttrib4fv = glVertexAttrib4fv; interface->fVertexAttribPointer = glVertexAttribPointer; interface->fViewport = glViewport; if (ver >= GR_GL_VER(3,3) || GrGLHasExtensionFromString("GL_ARB_timer_query", extStr)) { // ARB extension doesn't use the ARB suffix on the function name #if GL_ARB_timer_query || GL_VERSION_3_3 interface->fQueryCounter = glQueryCounter; interface->fGetQueryObjecti64v = glGetQueryObjecti64v; interface->fGetQueryObjectui64v = glGetQueryObjectui64v; #else interface->fQueryCounter = GET_PROC(QueryCounter); interface->fGetQueryObjecti64v = GET_PROC(GetQueryObjecti64v); interface->fGetQueryObjectui64v = GET_PROC(GetQueryObjectui64v); #endif } else if (GrGLHasExtensionFromString("GL_EXT_timer_query", extStr)) { #if GL_EXT_timer_query interface->fGetQueryObjecti64v = glGetQueryObjecti64vEXT; interface->fGetQueryObjectui64v = glGetQueryObjectui64vEXT; #else interface->fGetQueryObjecti64v = GET_PROC_SUFFIX(GetQueryObjecti64v, EXT); interface->fGetQueryObjectui64v = GET_PROC_SUFFIX(GetQueryObjectui64v, EXT); #endif } if (ver >= GR_GL_VER(3,0) || GrGLHasExtensionFromString("GL_ARB_framebuffer_object", extStr)) { // ARB extension doesn't use the ARB suffix on the function names #if GL_VERSION_3_0 || GL_ARB_framebuffer_object interface->fGenFramebuffers = glGenFramebuffers; interface->fGetFramebufferAttachmentParameteriv = glGetFramebufferAttachmentParameteriv; interface->fGetRenderbufferParameteriv = glGetRenderbufferParameteriv; interface->fBindFramebuffer = glBindFramebuffer; interface->fFramebufferTexture2D = glFramebufferTexture2D; interface->fCheckFramebufferStatus = glCheckFramebufferStatus; interface->fDeleteFramebuffers = glDeleteFramebuffers; interface->fRenderbufferStorage = glRenderbufferStorage; interface->fGenRenderbuffers = glGenRenderbuffers; interface->fDeleteRenderbuffers = glDeleteRenderbuffers; interface->fFramebufferRenderbuffer = glFramebufferRenderbuffer; interface->fBindRenderbuffer = glBindRenderbuffer; interface->fRenderbufferStorageMultisample = glRenderbufferStorageMultisample; interface->fBlitFramebuffer = glBlitFramebuffer; #else interface->fGenFramebuffers = GET_PROC(GenFramebuffers); interface->fGetFramebufferAttachmentParameteriv = GET_PROC(GetFramebufferAttachmentParameteriv); interface->fGetRenderbufferParameteriv = GET_PROC(GetRenderbufferParameteriv); interface->fBindFramebuffer = GET_PROC(BindFramebuffer); interface->fFramebufferTexture2D = GET_PROC(FramebufferTexture2D); interface->fCheckFramebufferStatus = GET_PROC(CheckFramebufferStatus); interface->fDeleteFramebuffers = GET_PROC(DeleteFramebuffers); interface->fRenderbufferStorage = GET_PROC(RenderbufferStorage); interface->fGenRenderbuffers = GET_PROC(GenRenderbuffers); interface->fDeleteRenderbuffers = GET_PROC(DeleteRenderbuffers); interface->fFramebufferRenderbuffer = GET_PROC(FramebufferRenderbuffer); interface->fBindRenderbuffer = GET_PROC(BindRenderbuffer); interface->fRenderbufferStorageMultisample = GET_PROC(RenderbufferStorageMultisample); interface->fBlitFramebuffer = GET_PROC(BlitFramebuffer); #endif } else { if (GrGLHasExtensionFromString("GL_EXT_framebuffer_object", extStr)) { #if GL_EXT_framebuffer_object interface->fGenFramebuffers = glGenFramebuffersEXT; interface->fGetFramebufferAttachmentParameteriv = glGetFramebufferAttachmentParameterivEXT; interface->fGetRenderbufferParameteriv = glGetRenderbufferParameterivEXT; interface->fBindFramebuffer = glBindFramebufferEXT; interface->fFramebufferTexture2D = glFramebufferTexture2DEXT; interface->fCheckFramebufferStatus = glCheckFramebufferStatusEXT; interface->fDeleteFramebuffers = glDeleteFramebuffersEXT; interface->fRenderbufferStorage = glRenderbufferStorageEXT; interface->fGenRenderbuffers = glGenRenderbuffersEXT; interface->fDeleteRenderbuffers = glDeleteRenderbuffersEXT; interface->fFramebufferRenderbuffer = glFramebufferRenderbufferEXT; interface->fBindRenderbuffer = glBindRenderbufferEXT; #else interface->fGenFramebuffers = GET_PROC_SUFFIX(GenFramebuffers, EXT); interface->fGetFramebufferAttachmentParameteriv = GET_PROC_SUFFIX(GetFramebufferAttachmentParameteriv, EXT); interface->fGetRenderbufferParameteriv = GET_PROC_SUFFIX(GetRenderbufferParameteriv, EXT); interface->fBindFramebuffer = GET_PROC_SUFFIX(BindFramebuffer, EXT); interface->fFramebufferTexture2D = GET_PROC_SUFFIX(FramebufferTexture2D, EXT); interface->fCheckFramebufferStatus = GET_PROC_SUFFIX(CheckFramebufferStatus, EXT); interface->fDeleteFramebuffers = GET_PROC_SUFFIX(DeleteFramebuffers, EXT); interface->fRenderbufferStorage = GET_PROC_SUFFIX(RenderbufferStorage, EXT); interface->fGenRenderbuffers = GET_PROC_SUFFIX(GenRenderbuffers, EXT); interface->fDeleteRenderbuffers = GET_PROC_SUFFIX(DeleteRenderbuffers, EXT); interface->fFramebufferRenderbuffer = GET_PROC_SUFFIX(FramebufferRenderbuffer, EXT); interface->fBindRenderbuffer = GET_PROC_SUFFIX(BindRenderbuffer, EXT); #endif } if (GrGLHasExtensionFromString("GL_EXT_framebuffer_multisample", extStr)) { #if GL_EXT_framebuffer_multisample interface->fRenderbufferStorageMultisample = glRenderbufferStorageMultisampleEXT; #else interface->fRenderbufferStorageMultisample = GET_PROC_SUFFIX(RenderbufferStorageMultisample, EXT); #endif } if (GrGLHasExtensionFromString("", extStr)) { #if GL_EXT_framebuffer_blit interface->fBlitFramebuffer = glBlitFramebufferEXT; #else interface->fBlitFramebuffer = GET_PROC_SUFFIX(BlitFramebuffer, EXT); #endif } } if (ver >= GR_GL_VER(3,3) || GrGLHasExtensionFromString("GL_ARB_blend_func_extended", extStr)) { // ARB extension doesn't use the ARB suffix on the function name #if GL_VERSION_3_3 || GL_ARB_blend_func_extended interface->fBindFragDataLocationIndexed = glBindFragDataLocationIndexed; #else interface->fBindFragDataLocationIndexed = GET_PROC(BindFragDataLocationIndexed); #endif } interface->fBindingsExported = kDesktop_GrGLBinding; } glInterface.get()->ref(); return glInterface.get(); }