diff -r 000000000000 -r 6474c204b198 gfx/skia/trunk/src/gpu/gl/mesa/GrGLCreateMesaInterface.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gfx/skia/trunk/src/gpu/gl/mesa/GrGLCreateMesaInterface.cpp Wed Dec 31 06:09:35 2014 +0100 @@ -0,0 +1,232 @@ + +/* + * 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/GrGLExtensions.h" +#include "gl/GrGLInterface.h" +#include "../GrGLUtil.h" + +#define GL_GLEXT_PROTOTYPES +#include "osmesa_wrapper.h" + +#define GR_GL_GET_PROC(F) interface->fFunctions.f ## F = (GrGL ## F ## Proc) \ + OSMesaGetProcAddress("gl" #F); +#define GR_GL_GET_PROC_SUFFIX(F, S) interface->fFunctions.f ## F = (GrGL ## F ## Proc) \ + OSMesaGetProcAddress("gl" #F #S); + +// We use OSMesaGetProcAddress for every gl function to avoid accidentally using +// non-Mesa gl functions. + +const GrGLInterface* GrGLCreateMesaInterface() { + if (NULL != OSMesaGetCurrentContext()) { + + GrGLGetStringProc getString = (GrGLGetStringProc) OSMesaGetProcAddress("glGetString"); + GrGLGetStringiProc getStringi = (GrGLGetStringiProc) OSMesaGetProcAddress("glGetStringi"); + GrGLGetIntegervProc getIntegerv = + (GrGLGetIntegervProc) OSMesaGetProcAddress("glGetIntegerv"); + + GrGLExtensions extensions; + if (!extensions.init(kGL_GrGLStandard, getString, getStringi, getIntegerv)) { + return NULL; + } + + const char* versionString = (const char*) getString(GL_VERSION); + GrGLVersion glVer = GrGLGetVersionFromString(versionString); + + if (glVer < GR_GL_VER(1,5)) { + // We must have array and element_array buffer objects. + return NULL; + } + GrGLInterface* interface = SkNEW(GrGLInterface()); + + GR_GL_GET_PROC(ActiveTexture); + GR_GL_GET_PROC(BeginQuery); + GR_GL_GET_PROC(AttachShader); + GR_GL_GET_PROC(BindAttribLocation); + GR_GL_GET_PROC(BindBuffer); + GR_GL_GET_PROC(BindFragDataLocation); + GR_GL_GET_PROC(BindTexture); + GR_GL_GET_PROC(BlendFunc); + + 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); + GR_GL_GET_PROC(Clear); + GR_GL_GET_PROC(ClearColor); + GR_GL_GET_PROC(ClearStencil); + GR_GL_GET_PROC(ColorMask); + GR_GL_GET_PROC(CompileShader); + GR_GL_GET_PROC(CompressedTexImage2D); + GR_GL_GET_PROC(CopyTexSubImage2D); + GR_GL_GET_PROC(CreateProgram); + GR_GL_GET_PROC(CreateShader); + GR_GL_GET_PROC(CullFace); + GR_GL_GET_PROC(DeleteBuffers); + GR_GL_GET_PROC(DeleteProgram); + GR_GL_GET_PROC(DeleteQueries); + GR_GL_GET_PROC(DeleteShader); + GR_GL_GET_PROC(DeleteTextures); + GR_GL_GET_PROC(DepthMask); + GR_GL_GET_PROC(Disable); + GR_GL_GET_PROC(DisableVertexAttribArray); + GR_GL_GET_PROC(DrawArrays); + GR_GL_GET_PROC(DrawBuffer); + GR_GL_GET_PROC(DrawBuffers); + GR_GL_GET_PROC(DrawElements); + GR_GL_GET_PROC(Enable); + GR_GL_GET_PROC(EnableVertexAttribArray); + GR_GL_GET_PROC(EndQuery); + GR_GL_GET_PROC(Finish); + GR_GL_GET_PROC(Flush); + GR_GL_GET_PROC(FrontFace); + GR_GL_GET_PROC(GenBuffers); + GR_GL_GET_PROC(GenerateMipmap); + GR_GL_GET_PROC(GenQueries); + GR_GL_GET_PROC(GetBufferParameteriv); + GR_GL_GET_PROC(GetError); + GR_GL_GET_PROC(GetIntegerv); + GR_GL_GET_PROC(GetProgramInfoLog); + GR_GL_GET_PROC(GetProgramiv); + 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(GetQueryObjectiv); + GR_GL_GET_PROC(GetQueryObjectuiv); + GR_GL_GET_PROC(GetQueryiv); + GR_GL_GET_PROC(GetShaderInfoLog); + GR_GL_GET_PROC(GetShaderiv); + GR_GL_GET_PROC(GetString); + GR_GL_GET_PROC(GetStringi); + GR_GL_GET_PROC(GetTexLevelParameteriv); + GR_GL_GET_PROC(GenTextures); + GR_GL_GET_PROC(GetUniformLocation); + GR_GL_GET_PROC(LineWidth); + GR_GL_GET_PROC(LinkProgram); + GR_GL_GET_PROC(LoadIdentity); + GR_GL_GET_PROC(LoadMatrixf); + GR_GL_GET_PROC(MatrixMode); + GR_GL_GET_PROC(MapBuffer); + GR_GL_GET_PROC(PixelStorei); + GR_GL_GET_PROC(ReadBuffer); + GR_GL_GET_PROC(ReadPixels); + GR_GL_GET_PROC(Scissor); + GR_GL_GET_PROC(ShaderSource); + GR_GL_GET_PROC(StencilFunc); + GR_GL_GET_PROC(StencilFuncSeparate); + GR_GL_GET_PROC(StencilMask); + GR_GL_GET_PROC(StencilMaskSeparate); + GR_GL_GET_PROC(StencilOp); + GR_GL_GET_PROC(StencilOpSeparate); + GR_GL_GET_PROC(TexGenfv); + GR_GL_GET_PROC(TexGeni); + GR_GL_GET_PROC(TexImage2D) + GR_GL_GET_PROC(TexParameteri); + GR_GL_GET_PROC(TexParameteriv); + GR_GL_GET_PROC(TexStorage2D); + if (NULL == interface->fFunctions.fTexStorage2D) { + GR_GL_GET_PROC_SUFFIX(TexStorage2D, EXT); + } + GR_GL_GET_PROC(TexSubImage2D); + 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(Viewport); + + 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(DeleteVertexArrays); + GR_GL_GET_PROC(GenVertexArrays); + } + + // 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(BindFragDataLocationIndexed); + + if (extensions.has("GL_EXT_debug_marker")) { + GR_GL_GET_PROC_SUFFIX(InsertEventMarker, EXT); + GR_GL_GET_PROC_SUFFIX(PopGroupMarker, EXT); + GR_GL_GET_PROC_SUFFIX(PushGroupMarker, EXT); + } + + interface->fStandard = kGL_GrGLStandard; + interface->fExtensions.swap(&extensions); + + return interface; + } else { + return NULL; + } +}