/* * 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 #include #define GR_GL_GET_PROC(F) interface->fFunctions.f ## F = (GrGL ## F ## Proc) \ glXGetProcAddress(reinterpret_cast("gl" #F)); #define GR_GL_GET_PROC_SUFFIX(F, S) interface->fFunctions.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); GrGLVersion glVer = GrGLGetVersionFromString(versionString); // This may or may not succeed depending on the gl version. GrGLGetStringiProc glGetStringi = (GrGLGetStringiProc) glXGetProcAddress(reinterpret_cast("glGetStringi")); GrGLExtensions extensions; if (!extensions.init(kGL_GrGLStandard, glGetString, glGetStringi, glGetIntegerv)) { return NULL; } if (glVer < GR_GL_VER(1,5)) { // We must have array and element_array buffer objects. return NULL; } GrGLInterface* interface = SkNEW(GrGLInterface()); GrGLInterface::Functions* functions = &interface->fFunctions; functions->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); functions->fBindTexture = glBindTexture; functions->fBlendFunc = glBlendFunc; if (glVer >= GR_GL_VER(1,4) || extensions.has("GL_ARB_imaging") || extensions.has("GL_EXT_blend_color")) { GR_GL_GET_PROC(BlendColor); } GR_GL_GET_PROC(BufferData); GR_GL_GET_PROC(BufferSubData); functions->fClear = glClear; functions->fClearColor = glClearColor; functions->fClearStencil = glClearStencil; functions->fClientActiveTexture = glClientActiveTexture; functions->fColorMask = glColorMask; GR_GL_GET_PROC(CompileShader); functions->fCompressedTexImage2D = glCompressedTexImage2D; functions->fCopyTexSubImage2D = glCopyTexSubImage2D; GR_GL_GET_PROC(CreateProgram); GR_GL_GET_PROC(CreateShader); functions->fCullFace = glCullFace; GR_GL_GET_PROC(DeleteBuffers); GR_GL_GET_PROC(DeleteProgram); GR_GL_GET_PROC(DeleteQueries); GR_GL_GET_PROC(DeleteShader); functions->fDeleteTextures = glDeleteTextures; functions->fDepthMask = glDepthMask; functions->fDisable = glDisable; functions->fDisableClientState = glDisableClientState; GR_GL_GET_PROC(DisableVertexAttribArray); functions->fDrawArrays = glDrawArrays; functions->fDrawBuffer = glDrawBuffer; GR_GL_GET_PROC(DrawBuffers); functions->fDrawElements = glDrawElements; functions->fEnable = glEnable; functions->fEnableClientState = glEnableClientState; GR_GL_GET_PROC(EnableVertexAttribArray); GR_GL_GET_PROC(EndQuery); functions->fFinish = glFinish; functions->fFlush = glFlush; functions->fFrontFace = glFrontFace; GR_GL_GET_PROC(GenBuffers); GR_GL_GET_PROC(GenerateMipmap); GR_GL_GET_PROC(GetBufferParameteriv); functions->fGetError = glGetError; functions->fGetIntegerv = glGetIntegerv; GR_GL_GET_PROC(GetQueryObjectiv); GR_GL_GET_PROC(GetQueryObjectuiv); if (glVer >= GR_GL_VER(3,3) || extensions.has("GL_ARB_timer_query")) { GR_GL_GET_PROC(GetQueryObjecti64v); GR_GL_GET_PROC(GetQueryObjectui64v); GR_GL_GET_PROC(QueryCounter); } else if (extensions.has("GL_EXT_timer_query")) { 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); functions->fGetString = glGetString; GR_GL_GET_PROC(GetStringi); functions->fGetTexLevelParameteriv = glGetTexLevelParameteriv; GR_GL_GET_PROC(GenQueries); functions->fGenTextures = glGenTextures; GR_GL_GET_PROC(GetUniformLocation); functions->fLineWidth = glLineWidth; GR_GL_GET_PROC(LinkProgram); GR_GL_GET_PROC(MapBuffer); functions->fPixelStorei = glPixelStorei; functions->fReadBuffer = glReadBuffer; functions->fReadPixels = glReadPixels; functions->fScissor = glScissor; GR_GL_GET_PROC(ShaderSource); functions->fStencilFunc = glStencilFunc; GR_GL_GET_PROC(StencilFuncSeparate); functions->fStencilMask = glStencilMask; GR_GL_GET_PROC(StencilMaskSeparate); functions->fStencilOp = glStencilOp; GR_GL_GET_PROC(StencilOpSeparate); functions->fTexImage2D = glTexImage2D; functions->fTexGenf = glTexGenf; functions->fTexGenfv = glTexGenfv; functions->fTexGeni = glTexGeni; functions->fTexParameteri = glTexParameteri; functions->fTexParameteriv = glTexParameteriv; if (glVer >= GR_GL_VER(4,2) || extensions.has("GL_ARB_texture_storage")) { GR_GL_GET_PROC(TexStorage2D); } else if (extensions.has("GL_EXT_texture_storage")) { GR_GL_GET_PROC_SUFFIX(TexStorage2D, EXT); } functions->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); GR_GL_GET_PROC(VertexPointer); functions->fViewport = glViewport; GR_GL_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 GR_GL_GET_PROC(BindVertexArray); GR_GL_GET_PROC(GenVertexArrays); GR_GL_GET_PROC(DeleteVertexArrays); } // 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")) { 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 (extensions.has("GL_EXT_framebuffer_object")) { 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 (extensions.has("GL_EXT_framebuffer_multisample")) { GR_GL_GET_PROC_SUFFIX(RenderbufferStorageMultisample, EXT); } if (extensions.has("GL_EXT_framebuffer_blit")) { GR_GL_GET_PROC_SUFFIX(BlitFramebuffer, EXT); } } else { // we must have FBOs delete interface; return NULL; } GR_GL_GET_PROC(LoadIdentity); GR_GL_GET_PROC(LoadMatrixf); GR_GL_GET_PROC(MatrixMode); if (extensions.has("GL_NV_path_rendering")) { GR_GL_GET_PROC_SUFFIX(PathCommands, NV); GR_GL_GET_PROC_SUFFIX(PathCoords, NV); GR_GL_GET_PROC_SUFFIX(PathSubCommands, NV); GR_GL_GET_PROC_SUFFIX(PathSubCoords, NV); GR_GL_GET_PROC_SUFFIX(PathString, NV); GR_GL_GET_PROC_SUFFIX(PathGlyphs, NV); GR_GL_GET_PROC_SUFFIX(PathGlyphRange, NV); GR_GL_GET_PROC_SUFFIX(WeightPaths, NV); GR_GL_GET_PROC_SUFFIX(CopyPath, NV); GR_GL_GET_PROC_SUFFIX(InterpolatePaths, NV); GR_GL_GET_PROC_SUFFIX(TransformPath, NV); GR_GL_GET_PROC_SUFFIX(PathParameteriv, NV); GR_GL_GET_PROC_SUFFIX(PathParameteri, NV); GR_GL_GET_PROC_SUFFIX(PathParameterfv, NV); GR_GL_GET_PROC_SUFFIX(PathParameterf, NV); GR_GL_GET_PROC_SUFFIX(PathDashArray, NV); GR_GL_GET_PROC_SUFFIX(GenPaths, NV); GR_GL_GET_PROC_SUFFIX(DeletePaths, NV); GR_GL_GET_PROC_SUFFIX(IsPath, NV); GR_GL_GET_PROC_SUFFIX(PathStencilFunc, NV); GR_GL_GET_PROC_SUFFIX(PathStencilDepthOffset, NV); GR_GL_GET_PROC_SUFFIX(StencilFillPath, NV); GR_GL_GET_PROC_SUFFIX(StencilStrokePath, NV); GR_GL_GET_PROC_SUFFIX(StencilFillPathInstanced, NV); GR_GL_GET_PROC_SUFFIX(StencilStrokePathInstanced, NV); GR_GL_GET_PROC_SUFFIX(PathCoverDepthFunc, NV); GR_GL_GET_PROC_SUFFIX(PathColorGen, NV); GR_GL_GET_PROC_SUFFIX(PathTexGen, NV); GR_GL_GET_PROC_SUFFIX(PathFogGen, NV); GR_GL_GET_PROC_SUFFIX(CoverFillPath, NV); GR_GL_GET_PROC_SUFFIX(CoverStrokePath, NV); GR_GL_GET_PROC_SUFFIX(CoverFillPathInstanced, NV); GR_GL_GET_PROC_SUFFIX(CoverStrokePathInstanced, NV); GR_GL_GET_PROC_SUFFIX(GetPathParameteriv, NV); GR_GL_GET_PROC_SUFFIX(GetPathParameterfv, NV); GR_GL_GET_PROC_SUFFIX(GetPathCommands, NV); GR_GL_GET_PROC_SUFFIX(GetPathCoords, NV); GR_GL_GET_PROC_SUFFIX(GetPathDashArray, NV); GR_GL_GET_PROC_SUFFIX(GetPathMetrics, NV); GR_GL_GET_PROC_SUFFIX(GetPathMetricRange, NV); GR_GL_GET_PROC_SUFFIX(GetPathSpacing, NV); GR_GL_GET_PROC_SUFFIX(GetPathColorGeniv, NV); GR_GL_GET_PROC_SUFFIX(GetPathColorGenfv, NV); GR_GL_GET_PROC_SUFFIX(GetPathTexGeniv, NV); GR_GL_GET_PROC_SUFFIX(GetPathTexGenfv, NV); GR_GL_GET_PROC_SUFFIX(IsPointInFillPath, NV); GR_GL_GET_PROC_SUFFIX(IsPointInStrokePath, NV); GR_GL_GET_PROC_SUFFIX(GetPathLength, NV); GR_GL_GET_PROC_SUFFIX(PointAlongPath, NV); } interface->fStandard = kGL_GrGLStandard; interface->fExtensions.swap(&extensions); return interface; } else { return NULL; } }