/* * 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 #include #include #include #define GR_GL_GET_PROC(F) interface->f ## F = (GrGL ## F ## Proc) \ glXGetProcAddress(reinterpret_cast("gl" #F)); #define GR_GL_GET_PROC_SUFFIX(F, S) interface->f ## F = (GrGL ## F ## Proc) \ glXGetProcAddress(reinterpret_cast("gl" #F #S)); const GrGLInterface* GrGLCreateNativeInterface() { if (NULL != glXGetCurrentContext()) { const char* versionString = (const char*) glGetString(GL_VERSION); const char* extString = (const char*) glGetString(GL_EXTENSIONS); GrGLVersion glVer = GrGLGetVersionFromString(versionString); if (glVer < GR_GL_VER(1,5)) { // We must have array and element_array buffer objects. return NULL; } GrGLInterface* interface = new GrGLInterface(); interface->fActiveTexture = glActiveTexture; GR_GL_GET_PROC(AttachShader); GR_GL_GET_PROC(BindAttribLocation); GR_GL_GET_PROC(BindBuffer); GR_GL_GET_PROC(BindFragDataLocation); GR_GL_GET_PROC(BeginQuery); interface->fBindTexture = glBindTexture; interface->fBlendColor = glBlendColor; interface->fBlendFunc = glBlendFunc; GR_GL_GET_PROC(BufferData); GR_GL_GET_PROC(BufferSubData); interface->fClear = glClear; interface->fClearColor = glClearColor; interface->fClearStencil = glClearStencil; interface->fColorMask = glColorMask; interface->fColorPointer = glColorPointer; GR_GL_GET_PROC(CompileShader); interface->fCompressedTexImage2D = glCompressedTexImage2D; GR_GL_GET_PROC(CreateProgram); GR_GL_GET_PROC(CreateShader); interface->fCullFace = glCullFace; GR_GL_GET_PROC(DeleteBuffers); GR_GL_GET_PROC(DeleteProgram); GR_GL_GET_PROC(DeleteQueries); GR_GL_GET_PROC(DeleteShader); interface->fDeleteTextures = glDeleteTextures; interface->fDepthMask = glDepthMask; interface->fDisable = glDisable; GR_GL_GET_PROC(DisableVertexAttribArray); interface->fDrawArrays = glDrawArrays; interface->fDrawBuffer = glDrawBuffer; GR_GL_GET_PROC(DrawBuffers); interface->fDrawElements = glDrawElements; interface->fEnable = glEnable; GR_GL_GET_PROC(EnableVertexAttribArray); GR_GL_GET_PROC(EndQuery); interface->fFinish = glFinish; interface->fFlush = glFlush; interface->fFrontFace = glFrontFace; GR_GL_GET_PROC(GenBuffers); GR_GL_GET_PROC(GetBufferParameteriv); interface->fGetError = glGetError; interface->fGetIntegerv = glGetIntegerv; GR_GL_GET_PROC(GetQueryObjectiv); GR_GL_GET_PROC(GetQueryObjectuiv); if (glVer >= GR_GL_VER(3,3) || GrGLHasExtensionFromString("GL_ARB_timer_query", extString)) { GR_GL_GET_PROC(GetQueryObjecti64v); GR_GL_GET_PROC(GetQueryObjectui64v); GR_GL_GET_PROC(QueryCounter); } else if (GrGLHasExtensionFromString("GL_EXT_timer_query", extString)) { GR_GL_GET_PROC_SUFFIX(GetQueryObjecti64v, EXT); GR_GL_GET_PROC_SUFFIX(GetQueryObjectui64v, EXT); } GR_GL_GET_PROC(GetQueryiv); GR_GL_GET_PROC(GetProgramInfoLog); GR_GL_GET_PROC(GetProgramiv); GR_GL_GET_PROC(GetShaderInfoLog); GR_GL_GET_PROC(GetShaderiv); interface->fGetString = glGetString; interface->fGetTexLevelParameteriv = glGetTexLevelParameteriv; GR_GL_GET_PROC(GenQueries); interface->fGenTextures = glGenTextures; GR_GL_GET_PROC(GetUniformLocation); interface->fLineWidth = glLineWidth; GR_GL_GET_PROC(LinkProgram); GR_GL_GET_PROC(MapBuffer); interface->fPixelStorei = glPixelStorei; interface->fReadBuffer = glReadBuffer; interface->fReadPixels = glReadPixels; interface->fScissor = glScissor; GR_GL_GET_PROC(ShaderSource); interface->fStencilFunc = glStencilFunc; GR_GL_GET_PROC(StencilFuncSeparate); interface->fStencilMask = glStencilMask; GR_GL_GET_PROC(StencilMaskSeparate); interface->fStencilOp = glStencilOp; GR_GL_GET_PROC(StencilOpSeparate); interface->fTexImage2D = glTexImage2D; interface->fTexParameteri = glTexParameteri; if (glVer >= GR_GL_VER(4,2) || GrGLHasExtensionFromString("GL_ARB_texture_storage", extString)) { GR_GL_GET_PROC(TexStorage2D); } else if (GrGLHasExtensionFromString("GL_EXT_texture_storage", extString)) { GR_GL_GET_PROC_SUFFIX(TexStorage2D, EXT); } interface->fTexSubImage2D = glTexSubImage2D; GR_GL_GET_PROC(Uniform1f); GR_GL_GET_PROC(Uniform1i); GR_GL_GET_PROC(Uniform1fv); GR_GL_GET_PROC(Uniform1iv); GR_GL_GET_PROC(Uniform2f); GR_GL_GET_PROC(Uniform2i); GR_GL_GET_PROC(Uniform2fv); GR_GL_GET_PROC(Uniform2iv); GR_GL_GET_PROC(Uniform3f); GR_GL_GET_PROC(Uniform3i); GR_GL_GET_PROC(Uniform3fv); GR_GL_GET_PROC(Uniform3iv); GR_GL_GET_PROC(Uniform4f); GR_GL_GET_PROC(Uniform4i); GR_GL_GET_PROC(Uniform4fv); GR_GL_GET_PROC(Uniform4iv); GR_GL_GET_PROC(UniformMatrix2fv); GR_GL_GET_PROC(UniformMatrix3fv); GR_GL_GET_PROC(UniformMatrix4fv); GR_GL_GET_PROC(UnmapBuffer); GR_GL_GET_PROC(UseProgram); GR_GL_GET_PROC(VertexAttrib4fv); GR_GL_GET_PROC(VertexAttribPointer); interface->fViewport = glViewport; GR_GL_GET_PROC(BindFragDataLocationIndexed); // 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) || GrGLHasExtensionFromString("GL_ARB_framebuffer_object", extString)) { GR_GL_GET_PROC(GenFramebuffers); GR_GL_GET_PROC(GetFramebufferAttachmentParameteriv); GR_GL_GET_PROC(GetRenderbufferParameteriv); GR_GL_GET_PROC(BindFramebuffer); GR_GL_GET_PROC(FramebufferTexture2D); GR_GL_GET_PROC(CheckFramebufferStatus); GR_GL_GET_PROC(DeleteFramebuffers); GR_GL_GET_PROC(RenderbufferStorage); GR_GL_GET_PROC(GenRenderbuffers); GR_GL_GET_PROC(DeleteRenderbuffers); GR_GL_GET_PROC(FramebufferRenderbuffer); GR_GL_GET_PROC(BindRenderbuffer); GR_GL_GET_PROC(RenderbufferStorageMultisample); GR_GL_GET_PROC(BlitFramebuffer); } else if (GrGLHasExtensionFromString("GL_EXT_framebuffer_object", extString)) { GR_GL_GET_PROC_SUFFIX(GenFramebuffers, EXT); GR_GL_GET_PROC_SUFFIX(GetFramebufferAttachmentParameteriv, EXT); GR_GL_GET_PROC_SUFFIX(GetRenderbufferParameteriv, EXT); GR_GL_GET_PROC_SUFFIX(BindFramebuffer, EXT); GR_GL_GET_PROC_SUFFIX(FramebufferTexture2D, EXT); GR_GL_GET_PROC_SUFFIX(CheckFramebufferStatus, EXT); GR_GL_GET_PROC_SUFFIX(DeleteFramebuffers, EXT); GR_GL_GET_PROC_SUFFIX(RenderbufferStorage, EXT); GR_GL_GET_PROC_SUFFIX(GenRenderbuffers, EXT); GR_GL_GET_PROC_SUFFIX(DeleteRenderbuffers, EXT); GR_GL_GET_PROC_SUFFIX(FramebufferRenderbuffer, EXT); GR_GL_GET_PROC_SUFFIX(BindRenderbuffer, EXT); if (GrGLHasExtensionFromString("GL_EXT_framebuffer_multisample", extString)) { GR_GL_GET_PROC_SUFFIX(RenderbufferStorageMultisample, EXT); } if (GrGLHasExtensionFromString("GL_EXT_framebuffer_blit", extString)) { GR_GL_GET_PROC_SUFFIX(BlitFramebuffer, EXT); } } else { // we must have FBOs delete interface; return NULL; } interface->fBindingsExported = kDesktop_GrGLBinding; return interface; } else { return NULL; } }