| |
| /* |
| * Copyright 2014 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| |
| #include "GrGLAssembleInterface.h" |
| #include "GrGLUtil.h" |
| |
| #define GET_PROC(F) functions->f ## F = (GrGL ## F ## Proc) get(ctx, "gl" #F) |
| #define GET_PROC_SUFFIX(F, S) functions->f ## F = (GrGL ## F ## Proc) get(ctx, "gl" #F #S) |
| #define GET_PROC_LOCAL(F) GrGL ## F ## Proc F = (GrGL ## F ## Proc) get(ctx, "gl" #F) |
| |
| // The glStencilThenCover* methods are a new addition to NV_path_rendering. They |
| // aren't available on all drivers. In the event that they are not present, this |
| // function can be used to add methods to the given GrGLInterface that emulate |
| // them using the existing glStencil*/glCover* methods. |
| static void emulate_nvpr_stencil_then_cover(GrGLInterface*); |
| |
| const GrGLInterface* GrGLAssembleGLInterface(void* ctx, GrGLGetProc get) { |
| GET_PROC_LOCAL(GetString); |
| GET_PROC_LOCAL(GetStringi); |
| GET_PROC_LOCAL(GetIntegerv); |
| |
| // GetStringi may be NULL depending on the GL version. |
| if (NULL == GetString || NULL == GetIntegerv) { |
| return NULL; |
| } |
| |
| const char* versionString = (const char*) GetString(GR_GL_VERSION); |
| GrGLVersion glVer = GrGLGetVersionFromString(versionString); |
| |
| if (glVer < GR_GL_VER(1,5) || GR_GL_INVALID_VER == glVer) { |
| // We must have array and element_array buffer objects. |
| return NULL; |
| } |
| |
| GrGLExtensions extensions; |
| if (!extensions.init(kGL_GrGLStandard, GetString, GetStringi, GetIntegerv)) { |
| return NULL; |
| } |
| |
| GrGLInterface* interface = SkNEW(GrGLInterface()); |
| GrGLInterface::Functions* functions = &interface->fFunctions; |
| |
| GET_PROC(ActiveTexture); |
| GET_PROC(AttachShader); |
| GET_PROC(BindAttribLocation); |
| GET_PROC(BindBuffer); |
| if (glVer >= GR_GL_VER(3,0)) { |
| GET_PROC(BindFragDataLocation); |
| } |
| GET_PROC(BeginQuery); |
| GET_PROC(BindTexture); |
| GET_PROC(BlendFunc); |
| |
| if (glVer >= GR_GL_VER(1,4) || |
| extensions.has("GL_ARB_imaging") || |
| extensions.has("GL_EXT_blend_color")) { |
| GET_PROC(BlendColor); |
| } |
| |
| GET_PROC(BufferData); |
| GET_PROC(BufferSubData); |
| GET_PROC(Clear); |
| GET_PROC(ClearColor); |
| GET_PROC(ClearStencil); |
| GET_PROC(ColorMask); |
| GET_PROC(CompileShader); |
| GET_PROC(CompressedTexImage2D); |
| GET_PROC(CompressedTexSubImage2D); |
| GET_PROC(CopyTexSubImage2D); |
| GET_PROC(CreateProgram); |
| GET_PROC(CreateShader); |
| GET_PROC(CullFace); |
| GET_PROC(DeleteBuffers); |
| GET_PROC(DeleteProgram); |
| GET_PROC(DeleteQueries); |
| GET_PROC(DeleteShader); |
| GET_PROC(DeleteTextures); |
| GET_PROC(DepthMask); |
| GET_PROC(Disable); |
| GET_PROC(DisableVertexAttribArray); |
| GET_PROC(DrawArrays); |
| GET_PROC(DrawBuffer); |
| GET_PROC(DrawBuffers); |
| GET_PROC(DrawElements); |
| GET_PROC(Enable); |
| GET_PROC(EnableVertexAttribArray); |
| GET_PROC(EndQuery); |
| GET_PROC(Finish); |
| GET_PROC(Flush); |
| GET_PROC(FrontFace); |
| GET_PROC(GenBuffers); |
| GET_PROC(GenerateMipmap); |
| GET_PROC(GetBufferParameteriv); |
| GET_PROC(GetError); |
| GET_PROC(GetIntegerv); |
| GET_PROC(GetQueryObjectiv); |
| GET_PROC(GetQueryObjectuiv); |
| if (glVer >= GR_GL_VER(3,3) || extensions.has("GL_ARB_timer_query")) { |
| GET_PROC(GetQueryObjecti64v); |
| GET_PROC(GetQueryObjectui64v); |
| GET_PROC(QueryCounter); |
| } else if (extensions.has("GL_EXT_timer_query")) { |
| GET_PROC_SUFFIX(GetQueryObjecti64v, EXT); |
| GET_PROC_SUFFIX(GetQueryObjectui64v, EXT); |
| } |
| GET_PROC(GetQueryiv); |
| GET_PROC(GetProgramInfoLog); |
| GET_PROC(GetProgramiv); |
| GET_PROC(GetShaderInfoLog); |
| GET_PROC(GetShaderiv); |
| GET_PROC(GetString); |
| GET_PROC(GetStringi); |
| GET_PROC(GetTexLevelParameteriv); |
| GET_PROC(GenQueries); |
| GET_PROC(GenTextures); |
| GET_PROC(GetUniformLocation); |
| GET_PROC(LineWidth); |
| GET_PROC(LinkProgram); |
| GET_PROC(MapBuffer); |
| if (extensions.has("GL_EXT_direct_state_access")) { |
| GET_PROC_SUFFIX(MatrixLoadf, EXT); |
| GET_PROC_SUFFIX(MatrixLoadIdentity, EXT); |
| } |
| GET_PROC(PixelStorei); |
| GET_PROC(ReadBuffer); |
| GET_PROC(ReadPixels); |
| GET_PROC(Scissor); |
| GET_PROC(ShaderSource); |
| GET_PROC(StencilFunc); |
| GET_PROC(StencilFuncSeparate); |
| GET_PROC(StencilMask); |
| GET_PROC(StencilMaskSeparate); |
| GET_PROC(StencilOp); |
| GET_PROC(StencilOpSeparate); |
| GET_PROC(TexImage2D); |
| GET_PROC(TexParameteri); |
| GET_PROC(TexParameteriv); |
| if (glVer >= GR_GL_VER(4,2) || extensions.has("GL_ARB_texture_storage")) { |
| GET_PROC(TexStorage2D); |
| } else if (extensions.has("GL_EXT_texture_storage")) { |
| GET_PROC_SUFFIX(TexStorage2D, EXT); |
| } |
| GET_PROC(TexSubImage2D); |
| GET_PROC(Uniform1f); |
| GET_PROC(Uniform1i); |
| GET_PROC(Uniform1fv); |
| GET_PROC(Uniform1iv); |
| GET_PROC(Uniform2f); |
| GET_PROC(Uniform2i); |
| GET_PROC(Uniform2fv); |
| GET_PROC(Uniform2iv); |
| GET_PROC(Uniform3f); |
| GET_PROC(Uniform3i); |
| GET_PROC(Uniform3fv); |
| GET_PROC(Uniform3iv); |
| GET_PROC(Uniform4f); |
| GET_PROC(Uniform4i); |
| GET_PROC(Uniform4fv); |
| GET_PROC(Uniform4iv); |
| GET_PROC(UniformMatrix2fv); |
| GET_PROC(UniformMatrix3fv); |
| GET_PROC(UniformMatrix4fv); |
| GET_PROC(UnmapBuffer); |
| GET_PROC(UseProgram); |
| GET_PROC(VertexAttrib4fv); |
| GET_PROC(VertexAttribPointer); |
| GET_PROC(Viewport); |
| 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 |
| GET_PROC(BindVertexArray); |
| GET_PROC(GenVertexArrays); |
| GET_PROC(DeleteVertexArrays); |
| } |
| |
| if (glVer >= GR_GL_VER(3,0) || extensions.has("GL_ARB_map_buffer_range")) { |
| GET_PROC(MapBufferRange); |
| GET_PROC(FlushMappedBufferRange); |
| } |
| |
| // 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")) { |
| GET_PROC(GenFramebuffers); |
| GET_PROC(GetFramebufferAttachmentParameteriv); |
| GET_PROC(GetRenderbufferParameteriv); |
| GET_PROC(BindFramebuffer); |
| GET_PROC(FramebufferTexture2D); |
| GET_PROC(CheckFramebufferStatus); |
| GET_PROC(DeleteFramebuffers); |
| GET_PROC(RenderbufferStorage); |
| GET_PROC(GenRenderbuffers); |
| GET_PROC(DeleteRenderbuffers); |
| GET_PROC(FramebufferRenderbuffer); |
| GET_PROC(BindRenderbuffer); |
| GET_PROC(RenderbufferStorageMultisample); |
| GET_PROC(BlitFramebuffer); |
| } else if (extensions.has("GL_EXT_framebuffer_object")) { |
| GET_PROC_SUFFIX(GenFramebuffers, EXT); |
| GET_PROC_SUFFIX(GetFramebufferAttachmentParameteriv, EXT); |
| GET_PROC_SUFFIX(GetRenderbufferParameteriv, EXT); |
| GET_PROC_SUFFIX(BindFramebuffer, EXT); |
| GET_PROC_SUFFIX(FramebufferTexture2D, EXT); |
| GET_PROC_SUFFIX(CheckFramebufferStatus, EXT); |
| GET_PROC_SUFFIX(DeleteFramebuffers, EXT); |
| GET_PROC_SUFFIX(RenderbufferStorage, EXT); |
| GET_PROC_SUFFIX(GenRenderbuffers, EXT); |
| GET_PROC_SUFFIX(DeleteRenderbuffers, EXT); |
| GET_PROC_SUFFIX(FramebufferRenderbuffer, EXT); |
| GET_PROC_SUFFIX(BindRenderbuffer, EXT); |
| if (extensions.has("GL_EXT_framebuffer_multisample")) { |
| GET_PROC_SUFFIX(RenderbufferStorageMultisample, EXT); |
| } |
| if (extensions.has("GL_EXT_framebuffer_blit")) { |
| GET_PROC_SUFFIX(BlitFramebuffer, EXT); |
| } |
| } else { |
| // we must have FBOs |
| delete interface; |
| return NULL; |
| } |
| |
| if (extensions.has("GL_NV_path_rendering")) { |
| GET_PROC_SUFFIX(PathCommands, NV); |
| GET_PROC_SUFFIX(PathCoords, NV); |
| GET_PROC_SUFFIX(PathParameteri, NV); |
| GET_PROC_SUFFIX(PathParameterf, NV); |
| GET_PROC_SUFFIX(GenPaths, NV); |
| GET_PROC_SUFFIX(DeletePaths, NV); |
| GET_PROC_SUFFIX(IsPath, NV); |
| GET_PROC_SUFFIX(PathStencilFunc, NV); |
| GET_PROC_SUFFIX(StencilFillPath, NV); |
| GET_PROC_SUFFIX(StencilStrokePath, NV); |
| GET_PROC_SUFFIX(StencilFillPathInstanced, NV); |
| GET_PROC_SUFFIX(StencilStrokePathInstanced, NV); |
| GET_PROC_SUFFIX(PathTexGen, NV); |
| GET_PROC_SUFFIX(CoverFillPath, NV); |
| GET_PROC_SUFFIX(CoverStrokePath, NV); |
| GET_PROC_SUFFIX(CoverFillPathInstanced, NV); |
| GET_PROC_SUFFIX(CoverStrokePathInstanced, NV); |
| GET_PROC_SUFFIX(StencilThenCoverFillPath, NV); |
| GET_PROC_SUFFIX(StencilThenCoverStrokePath, NV); |
| GET_PROC_SUFFIX(StencilThenCoverFillPathInstanced, NV); |
| GET_PROC_SUFFIX(StencilThenCoverStrokePathInstanced, NV); |
| GET_PROC_SUFFIX(ProgramPathFragmentInputGen, NV); |
| |
| if (NULL == interface->fFunctions.fStencilThenCoverFillPath || |
| NULL == interface->fFunctions.fStencilThenCoverStrokePath || |
| NULL == interface->fFunctions.fStencilThenCoverFillPathInstanced || |
| NULL == interface->fFunctions.fStencilThenCoverFillPathInstanced) { |
| emulate_nvpr_stencil_then_cover(interface); |
| } |
| } |
| |
| if (extensions.has("GL_EXT_debug_marker")) { |
| GET_PROC_SUFFIX(InsertEventMarker, EXT); |
| GET_PROC_SUFFIX(PushGroupMarker, EXT); |
| GET_PROC_SUFFIX(PopGroupMarker, EXT); |
| } |
| |
| if (glVer >= GR_GL_VER(4,3) || extensions.has("GL_ARB_invalidate_subdata")) { |
| GET_PROC(InvalidateBufferData); |
| GET_PROC(InvalidateBufferSubData); |
| GET_PROC(InvalidateFramebuffer); |
| GET_PROC(InvalidateSubFramebuffer); |
| GET_PROC(InvalidateTexImage); |
| GET_PROC(InvalidateTexSubImage); |
| } |
| |
| if (glVer >= GR_GL_VER(4,3) || extensions.has("GL_ARB_program_interface_query")) { |
| GET_PROC(GetProgramResourceLocation); |
| } |
| |
| interface->fStandard = kGL_GrGLStandard; |
| interface->fExtensions.swap(&extensions); |
| |
| return interface; |
| } |
| |
| static GrGLStencilFillPathProc gStencilFillPath; |
| static GrGLCoverFillPathProc gCoverFillPath; |
| static GrGLvoid GR_GL_FUNCTION_TYPE stencil_then_cover_fill_path( |
| GrGLuint path, GrGLenum fillMode, |
| GrGLuint mask, GrGLenum coverMode) { |
| gStencilFillPath(path, fillMode, mask); |
| gCoverFillPath(path, coverMode); |
| } |
| |
| |
| static GrGLStencilStrokePathProc gStencilStrokePath; |
| static GrGLCoverStrokePathProc gCoverStrokePath; |
| static GrGLvoid GR_GL_FUNCTION_TYPE stencil_then_cover_stroke_path( |
| GrGLuint path, GrGLint reference, |
| GrGLuint mask, GrGLenum coverMode) { |
| gStencilStrokePath(path, reference, mask); |
| gCoverStrokePath(path, coverMode); |
| } |
| |
| static GrGLStencilFillPathInstancedProc gStencilFillPathInstanced; |
| static GrGLCoverFillPathInstancedProc gCoverFillPathInstanced; |
| static GrGLvoid GR_GL_FUNCTION_TYPE stencil_then_cover_fill_path_instanced( |
| GrGLsizei numPaths, GrGLenum pathNameType, |
| const GrGLvoid *paths, GrGLuint pathBase, |
| GrGLenum fillMode, GrGLuint mask, |
| GrGLenum coverMode, GrGLenum transformType, |
| const GrGLfloat *transformValues) { |
| gStencilFillPathInstanced(numPaths, pathNameType, paths, pathBase, |
| fillMode, mask, transformType, transformValues); |
| gCoverFillPathInstanced(numPaths, pathNameType, paths, pathBase, |
| coverMode, transformType, transformValues); |
| } |
| |
| static GrGLStencilStrokePathInstancedProc gStencilStrokePathInstanced; |
| static GrGLCoverStrokePathInstancedProc gCoverStrokePathInstanced; |
| static GrGLvoid GR_GL_FUNCTION_TYPE stencil_then_cover_stroke_path_instanced( |
| GrGLsizei numPaths, GrGLenum pathNameType, |
| const GrGLvoid *paths, GrGLuint pathBase, |
| GrGLint reference, GrGLuint mask, |
| GrGLenum coverMode, GrGLenum transformType, |
| const GrGLfloat *transformValues) { |
| gStencilStrokePathInstanced(numPaths, pathNameType, paths, pathBase, |
| reference, mask, transformType, transformValues); |
| gCoverStrokePathInstanced(numPaths, pathNameType, paths, pathBase, |
| coverMode, transformType, transformValues); |
| } |
| |
| static void emulate_nvpr_stencil_then_cover(GrGLInterface* interface) { |
| if (NULL == gStencilFillPath) { |
| gStencilFillPath = (GrGLStencilFillPathProc)interface->fFunctions.fStencilFillPath; |
| } |
| if (NULL == gCoverFillPath) { |
| gCoverFillPath = (GrGLCoverFillPathProc)interface->fFunctions.fCoverFillPath; |
| } |
| if (NULL == gStencilStrokePath) { |
| gStencilStrokePath = (GrGLStencilStrokePathProc)interface->fFunctions.fStencilStrokePath; |
| } |
| if (NULL == gCoverStrokePath) { |
| gCoverStrokePath = (GrGLCoverStrokePathProc)interface->fFunctions.fCoverStrokePath; |
| } |
| if (NULL == gStencilFillPathInstanced) { |
| gStencilFillPathInstanced = (GrGLStencilFillPathInstancedProc) |
| interface->fFunctions.fStencilFillPathInstanced; |
| } |
| if (NULL == gCoverFillPathInstanced) { |
| gCoverFillPathInstanced = (GrGLCoverFillPathInstancedProc) |
| interface->fFunctions.fCoverFillPathInstanced; |
| } |
| if (NULL == gStencilStrokePathInstanced) { |
| gStencilStrokePathInstanced = (GrGLStencilStrokePathInstancedProc) |
| interface->fFunctions.fStencilStrokePathInstanced; |
| } |
| if (NULL == gCoverStrokePathInstanced) { |
| gCoverStrokePathInstanced = (GrGLCoverStrokePathInstancedProc) |
| interface->fFunctions.fCoverStrokePathInstanced; |
| } |
| |
| if (interface->fFunctions.fStencilFillPath != gStencilFillPath || |
| interface->fFunctions.fCoverFillPath != gCoverFillPath || |
| interface->fFunctions.fStencilStrokePath != gStencilStrokePath || |
| interface->fFunctions.fCoverStrokePath != gCoverStrokePath || |
| interface->fFunctions.fStencilFillPathInstanced != gStencilFillPathInstanced || |
| interface->fFunctions.fCoverFillPathInstanced != gCoverFillPathInstanced || |
| interface->fFunctions.fStencilStrokePathInstanced != gStencilStrokePathInstanced || |
| interface->fFunctions.fCoverStrokePathInstanced != gCoverStrokePathInstanced) { |
| // While not every windowing system requires GetProcAddress to return |
| // the same addresses in different contexts, it is guaranteed to do so |
| // in any context that supports NV_path_rendering. |
| SkFAIL("GetProcAddress returned different addresses for the same nvpr functions"); |
| return; |
| } |
| |
| interface->fFunctions.fStencilThenCoverFillPath = &stencil_then_cover_fill_path; |
| interface->fFunctions.fStencilThenCoverStrokePath = &stencil_then_cover_stroke_path; |
| interface->fFunctions.fStencilThenCoverFillPathInstanced = &stencil_then_cover_fill_path_instanced; |
| interface->fFunctions.fStencilThenCoverStrokePathInstanced = &stencil_then_cover_stroke_path_instanced; |
| } |
