| /* | |
| * 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 "gl/GrGLExtensions.h" | |
| #include "gl/GrGLUtil.h" | |
| #include <stdio.h> | |
| #if GR_GL_PER_GL_FUNC_CALLBACK | |
| namespace { | |
| void GrGLDefaultInterfaceCallback(const GrGLInterface*) {} | |
| } | |
| #endif | |
| const GrGLInterface* GrGLInterfaceAddTestDebugMarker(const GrGLInterface* interface, | |
| GrGLInsertEventMarkerProc insertEventMarkerFn, | |
| GrGLPushGroupMarkerProc pushGroupMarkerFn, | |
| GrGLPopGroupMarkerProc popGroupMarkerFn) { | |
| GrGLInterface* newInterface = GrGLInterface::NewClone(interface); | |
| if (!newInterface->fExtensions.has("GL_EXT_debug_marker")) { | |
| newInterface->fExtensions.add("GL_EXT_debug_marker"); | |
| } | |
| newInterface->fFunctions.fInsertEventMarker = insertEventMarkerFn; | |
| newInterface->fFunctions.fPushGroupMarker = pushGroupMarkerFn; | |
| newInterface->fFunctions.fPopGroupMarker = popGroupMarkerFn; | |
| return newInterface; | |
| } | |
| const GrGLInterface* GrGLInterfaceRemoveNVPR(const GrGLInterface* interface) { | |
| GrGLInterface* newInterface = GrGLInterface::NewClone(interface); | |
| newInterface->fExtensions.remove("GL_NV_path_rendering"); | |
| newInterface->fFunctions.fPathCommands = NULL; | |
| newInterface->fFunctions.fPathCoords = NULL; | |
| newInterface->fFunctions.fPathParameteri = NULL; | |
| newInterface->fFunctions.fPathParameterf = NULL; | |
| newInterface->fFunctions.fGenPaths = NULL; | |
| newInterface->fFunctions.fDeletePaths = NULL; | |
| newInterface->fFunctions.fIsPath = NULL; | |
| newInterface->fFunctions.fPathStencilFunc = NULL; | |
| newInterface->fFunctions.fStencilFillPath = NULL; | |
| newInterface->fFunctions.fStencilStrokePath = NULL; | |
| newInterface->fFunctions.fStencilFillPathInstanced = NULL; | |
| newInterface->fFunctions.fStencilStrokePathInstanced = NULL; | |
| newInterface->fFunctions.fPathTexGen = NULL; | |
| newInterface->fFunctions.fCoverFillPath = NULL; | |
| newInterface->fFunctions.fCoverStrokePath = NULL; | |
| newInterface->fFunctions.fCoverFillPathInstanced = NULL; | |
| newInterface->fFunctions.fCoverStrokePathInstanced = NULL; | |
| newInterface->fFunctions.fStencilThenCoverFillPath = NULL; | |
| newInterface->fFunctions.fStencilThenCoverStrokePath = NULL; | |
| newInterface->fFunctions.fStencilThenCoverFillPathInstanced = NULL; | |
| newInterface->fFunctions.fStencilThenCoverStrokePathInstanced = NULL; | |
| newInterface->fFunctions.fProgramPathFragmentInputGen = NULL; | |
| newInterface->fFunctions.fPathMemoryGlyphIndexArray = NULL; | |
| return newInterface; | |
| } | |
| GrGLInterface::GrGLInterface() { | |
| fStandard = kNone_GrGLStandard; | |
| #if GR_GL_PER_GL_FUNC_CALLBACK | |
| fCallback = GrGLDefaultInterfaceCallback; | |
| fCallbackData = 0; | |
| #endif | |
| } | |
| GrGLInterface* GrGLInterface::NewClone(const GrGLInterface* interface) { | |
| SkASSERT(interface); | |
| GrGLInterface* clone = SkNEW(GrGLInterface); | |
| clone->fStandard = interface->fStandard; | |
| clone->fExtensions = interface->fExtensions; | |
| clone->fFunctions = interface->fFunctions; | |
| #if GR_GL_PER_GL_FUNC_CALLBACK | |
| clone->fCallback = interface->fCallback; | |
| clone->fCallbackData = interface->fCallbackData; | |
| #endif | |
| return clone; | |
| } | |
| #ifdef SK_DEBUG | |
| static int kIsDebug = 1; | |
| #else | |
| static int kIsDebug = 0; | |
| #endif | |
| #define RETURN_FALSE_INTERFACE \ | |
| if (kIsDebug) { SkDebugf("%s:%d GrGLInterface::validate() failed.\n", __FILE__, __LINE__); } \ | |
| return false; | |
| bool GrGLInterface::validate() const { | |
| if (kNone_GrGLStandard == fStandard) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| if (!fExtensions.isInitialized()) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| // functions that are always required | |
| if (NULL == fFunctions.fActiveTexture || | |
| NULL == fFunctions.fAttachShader || | |
| NULL == fFunctions.fBindAttribLocation || | |
| NULL == fFunctions.fBindBuffer || | |
| NULL == fFunctions.fBindTexture || | |
| NULL == fFunctions.fBlendFunc || | |
| NULL == fFunctions.fBlendColor || // -> GL >= 1.4, ES >= 2.0 or extension | |
| NULL == fFunctions.fBufferData || | |
| NULL == fFunctions.fBufferSubData || | |
| NULL == fFunctions.fClear || | |
| NULL == fFunctions.fClearColor || | |
| NULL == fFunctions.fClearStencil || | |
| NULL == fFunctions.fColorMask || | |
| NULL == fFunctions.fCompileShader || | |
| NULL == fFunctions.fCopyTexSubImage2D || | |
| NULL == fFunctions.fCreateProgram || | |
| NULL == fFunctions.fCreateShader || | |
| NULL == fFunctions.fCullFace || | |
| NULL == fFunctions.fDeleteBuffers || | |
| NULL == fFunctions.fDeleteProgram || | |
| NULL == fFunctions.fDeleteShader || | |
| NULL == fFunctions.fDeleteTextures || | |
| NULL == fFunctions.fDepthMask || | |
| NULL == fFunctions.fDisable || | |
| NULL == fFunctions.fDisableVertexAttribArray || | |
| NULL == fFunctions.fDrawArrays || | |
| NULL == fFunctions.fDrawElements || | |
| NULL == fFunctions.fEnable || | |
| NULL == fFunctions.fEnableVertexAttribArray || | |
| NULL == fFunctions.fFrontFace || | |
| NULL == fFunctions.fGenBuffers || | |
| NULL == fFunctions.fGenTextures || | |
| NULL == fFunctions.fGetBufferParameteriv || | |
| NULL == fFunctions.fGenerateMipmap || | |
| NULL == fFunctions.fGetError || | |
| NULL == fFunctions.fGetIntegerv || | |
| NULL == fFunctions.fGetProgramInfoLog || | |
| NULL == fFunctions.fGetProgramiv || | |
| NULL == fFunctions.fGetShaderInfoLog || | |
| NULL == fFunctions.fGetShaderiv || | |
| NULL == fFunctions.fGetString || | |
| NULL == fFunctions.fGetUniformLocation || | |
| NULL == fFunctions.fLinkProgram || | |
| NULL == fFunctions.fLineWidth || | |
| NULL == fFunctions.fPixelStorei || | |
| NULL == fFunctions.fReadPixels || | |
| NULL == fFunctions.fScissor || | |
| NULL == fFunctions.fShaderSource || | |
| NULL == fFunctions.fStencilFunc || | |
| NULL == fFunctions.fStencilMask || | |
| NULL == fFunctions.fStencilOp || | |
| NULL == fFunctions.fTexImage2D || | |
| NULL == fFunctions.fTexParameteri || | |
| NULL == fFunctions.fTexParameteriv || | |
| NULL == fFunctions.fTexSubImage2D || | |
| NULL == fFunctions.fUniform1f || | |
| NULL == fFunctions.fUniform1i || | |
| NULL == fFunctions.fUniform1fv || | |
| NULL == fFunctions.fUniform1iv || | |
| NULL == fFunctions.fUniform2f || | |
| NULL == fFunctions.fUniform2i || | |
| NULL == fFunctions.fUniform2fv || | |
| NULL == fFunctions.fUniform2iv || | |
| NULL == fFunctions.fUniform3f || | |
| NULL == fFunctions.fUniform3i || | |
| NULL == fFunctions.fUniform3fv || | |
| NULL == fFunctions.fUniform3iv || | |
| NULL == fFunctions.fUniform4f || | |
| NULL == fFunctions.fUniform4i || | |
| NULL == fFunctions.fUniform4fv || | |
| NULL == fFunctions.fUniform4iv || | |
| NULL == fFunctions.fUniformMatrix2fv || | |
| NULL == fFunctions.fUniformMatrix3fv || | |
| NULL == fFunctions.fUniformMatrix4fv || | |
| NULL == fFunctions.fUseProgram || | |
| NULL == fFunctions.fVertexAttrib1f || | |
| NULL == fFunctions.fVertexAttrib2fv || | |
| NULL == fFunctions.fVertexAttrib3fv || | |
| NULL == fFunctions.fVertexAttrib4fv || | |
| NULL == fFunctions.fVertexAttribPointer || | |
| NULL == fFunctions.fViewport || | |
| NULL == fFunctions.fBindFramebuffer || | |
| NULL == fFunctions.fBindRenderbuffer || | |
| NULL == fFunctions.fCheckFramebufferStatus || | |
| NULL == fFunctions.fDeleteFramebuffers || | |
| NULL == fFunctions.fDeleteRenderbuffers || | |
| NULL == fFunctions.fFinish || | |
| NULL == fFunctions.fFlush || | |
| NULL == fFunctions.fFramebufferRenderbuffer || | |
| NULL == fFunctions.fFramebufferTexture2D || | |
| NULL == fFunctions.fGetFramebufferAttachmentParameteriv || | |
| NULL == fFunctions.fGetRenderbufferParameteriv || | |
| NULL == fFunctions.fGenFramebuffers || | |
| NULL == fFunctions.fGenRenderbuffers || | |
| NULL == fFunctions.fRenderbufferStorage) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| GrGLVersion glVer = GrGLGetVersion(this); | |
| if (GR_GL_INVALID_VER == glVer) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| // Now check that baseline ES/Desktop fns not covered above are present | |
| // and that we have fn pointers for any advertised fExtensions that we will | |
| // try to use. | |
| // these functions are part of ES2, we assume they are available | |
| // On the desktop we assume they are available if the extension | |
| // is present or GL version is high enough. | |
| if (kGLES_GrGLStandard == fStandard) { | |
| if (NULL == fFunctions.fStencilFuncSeparate || | |
| NULL == fFunctions.fStencilMaskSeparate || | |
| NULL == fFunctions.fStencilOpSeparate) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } else if (kGL_GrGLStandard == fStandard) { | |
| if (glVer >= GR_GL_VER(2,0)) { | |
| if (NULL == fFunctions.fStencilFuncSeparate || | |
| NULL == fFunctions.fStencilMaskSeparate || | |
| NULL == fFunctions.fStencilOpSeparate) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| if (glVer >= GR_GL_VER(3,0) && NULL == fFunctions.fBindFragDataLocation) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| if (glVer >= GR_GL_VER(2,0) || fExtensions.has("GL_ARB_draw_buffers")) { | |
| if (NULL == fFunctions.fDrawBuffers) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| if (glVer >= GR_GL_VER(1,5) || fExtensions.has("GL_ARB_occlusion_query")) { | |
| if (NULL == fFunctions.fGenQueries || | |
| NULL == fFunctions.fDeleteQueries || | |
| NULL == fFunctions.fBeginQuery || | |
| NULL == fFunctions.fEndQuery || | |
| NULL == fFunctions.fGetQueryiv || | |
| NULL == fFunctions.fGetQueryObjectiv || | |
| NULL == fFunctions.fGetQueryObjectuiv) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| if (glVer >= GR_GL_VER(3,3) || | |
| fExtensions.has("GL_ARB_timer_query") || | |
| fExtensions.has("GL_EXT_timer_query")) { | |
| if (NULL == fFunctions.fGetQueryObjecti64v || | |
| NULL == fFunctions.fGetQueryObjectui64v) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| if (glVer >= GR_GL_VER(3,3) || fExtensions.has("GL_ARB_timer_query")) { | |
| if (NULL == fFunctions.fQueryCounter) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| } | |
| // optional function on desktop before 1.3 | |
| if (kGL_GrGLStandard != fStandard || | |
| (glVer >= GR_GL_VER(1,3)) || | |
| fExtensions.has("GL_ARB_texture_compression")) { | |
| if (NULL == fFunctions.fCompressedTexImage2D | |
| #if 0 | |
| || NULL == fFunctions.fCompressedTexSubImage2D | |
| #endif | |
| ) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| // part of desktop GL, but not ES | |
| if (kGL_GrGLStandard == fStandard && | |
| (NULL == fFunctions.fGetTexLevelParameteriv || | |
| NULL == fFunctions.fDrawBuffer || | |
| NULL == fFunctions.fReadBuffer)) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| // GL_EXT_texture_storage is part of desktop 4.2 | |
| // There is a desktop ARB extension and an ES+desktop EXT extension | |
| if (kGL_GrGLStandard == fStandard) { | |
| if (glVer >= GR_GL_VER(4,2) || | |
| fExtensions.has("GL_ARB_texture_storage") || | |
| fExtensions.has("GL_EXT_texture_storage")) { | |
| if (NULL == fFunctions.fTexStorage2D) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| } else if (glVer >= GR_GL_VER(3,0) || fExtensions.has("GL_EXT_texture_storage")) { | |
| if (NULL == fFunctions.fTexStorage2D) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| if (fExtensions.has("GL_EXT_discard_framebuffer")) { | |
| // FIXME: Remove this once Chromium is updated to provide this function | |
| #if 0 | |
| if (NULL == fFunctions.fDiscardFramebuffer) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| #endif | |
| } | |
| // FBO MSAA | |
| if (kGL_GrGLStandard == fStandard) { | |
| // GL 3.0 and the ARB extension have multisample + blit | |
| if (glVer >= GR_GL_VER(3,0) || fExtensions.has("GL_ARB_framebuffer_object")) { | |
| if (NULL == fFunctions.fRenderbufferStorageMultisample || | |
| NULL == fFunctions.fBlitFramebuffer) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } else { | |
| if (fExtensions.has("GL_EXT_framebuffer_blit") && | |
| NULL == fFunctions.fBlitFramebuffer) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| if (fExtensions.has("GL_EXT_framebuffer_multisample") && | |
| NULL == fFunctions.fRenderbufferStorageMultisample) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| } else { | |
| if (glVer >= GR_GL_VER(3,0) || fExtensions.has("GL_CHROMIUM_framebuffer_multisample")) { | |
| if (NULL == fFunctions.fRenderbufferStorageMultisample || | |
| NULL == fFunctions.fBlitFramebuffer) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| if (fExtensions.has("GL_APPLE_framebuffer_multisample")) { | |
| if (NULL == fFunctions.fRenderbufferStorageMultisampleES2APPLE || | |
| NULL == fFunctions.fResolveMultisampleFramebuffer) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| if (fExtensions.has("GL_IMG_multisampled_render_to_texture") || | |
| fExtensions.has("GL_EXT_multisampled_render_to_texture")) { | |
| if (NULL == fFunctions.fRenderbufferStorageMultisampleES2EXT || | |
| NULL == fFunctions.fFramebufferTexture2DMultisample) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| } | |
| // On ES buffer mapping is an extension. On Desktop | |
| // buffer mapping was part of original VBO extension | |
| // which we require. | |
| if (kGL_GrGLStandard == fStandard || fExtensions.has("GL_OES_mapbuffer")) { | |
| if (NULL == fFunctions.fMapBuffer || | |
| NULL == fFunctions.fUnmapBuffer) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| // Dual source blending | |
| if (kGL_GrGLStandard == fStandard && | |
| (glVer >= GR_GL_VER(3,3) || fExtensions.has("GL_ARB_blend_func_extended"))) { | |
| if (NULL == fFunctions.fBindFragDataLocationIndexed) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| // glGetStringi was added in version 3.0 of both desktop and ES. | |
| if (glVer >= GR_GL_VER(3, 0)) { | |
| if (NULL == fFunctions.fGetStringi) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| if (kGL_GrGLStandard == fStandard) { | |
| if (glVer >= GR_GL_VER(3, 0) || fExtensions.has("GL_ARB_vertex_array_object")) { | |
| if (NULL == fFunctions.fBindVertexArray || | |
| NULL == fFunctions.fDeleteVertexArrays || | |
| NULL == fFunctions.fGenVertexArrays) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| } else { | |
| if (glVer >= GR_GL_VER(3,0) || fExtensions.has("GL_OES_vertex_array_object")) { | |
| if (NULL == fFunctions.fBindVertexArray || | |
| NULL == fFunctions.fDeleteVertexArrays || | |
| NULL == fFunctions.fGenVertexArrays) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| } | |
| if (fExtensions.has("GL_EXT_debug_marker")) { | |
| if (NULL == fFunctions.fInsertEventMarker || | |
| NULL == fFunctions.fPushGroupMarker || | |
| NULL == fFunctions.fPopGroupMarker) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| if ((kGL_GrGLStandard == fStandard && glVer >= GR_GL_VER(4,3)) || | |
| fExtensions.has("GL_ARB_invalidate_subdata")) { | |
| if (NULL == fFunctions.fInvalidateBufferData || | |
| NULL == fFunctions.fInvalidateBufferSubData || | |
| NULL == fFunctions.fInvalidateFramebuffer || | |
| NULL == fFunctions.fInvalidateSubFramebuffer || | |
| NULL == fFunctions.fInvalidateTexImage || | |
| NULL == fFunctions.fInvalidateTexSubImage) { | |
| RETURN_FALSE_INTERFACE; | |
| } | |
| } else if (kGLES_GrGLStandard == fStandard && glVer >= GR_GL_VER(3,0)) { | |
| // ES 3.0 adds the framebuffer functions but not the others. | |
| if (NULL == fFunctions.fInvalidateFramebuffer || | |
| NULL == fFunctions.fInvalidateSubFramebuffer) { | |
| RETURN_FALSE_INTERFACE; | |
| } | |
| } | |
| if (kGLES_GrGLStandard == fStandard && fExtensions.has("GL_CHROMIUM_map_sub")) { | |
| if (NULL == fFunctions.fMapBufferSubData || | |
| NULL == fFunctions.fMapTexSubImage2D || | |
| NULL == fFunctions.fUnmapBufferSubData || | |
| NULL == fFunctions.fUnmapTexSubImage2D) { | |
| RETURN_FALSE_INTERFACE; | |
| } | |
| } | |
| // These functions are added to the 3.0 version of both GLES and GL. | |
| if (glVer >= GR_GL_VER(3,0) || | |
| (kGLES_GrGLStandard == fStandard && fExtensions.has("GL_EXT_map_buffer_range")) || | |
| (kGL_GrGLStandard == fStandard && fExtensions.has("GL_ARB_map_buffer_range"))) { | |
| if (NULL == fFunctions.fMapBufferRange || | |
| NULL == fFunctions.fFlushMappedBufferRange) { | |
| RETURN_FALSE_INTERFACE; | |
| } | |
| } | |
| if ((kGL_GrGLStandard == fStandard && fExtensions.has("GL_EXT_direct_state_access")) || | |
| (kGLES_GrGLStandard == fStandard && fExtensions.has("GL_NV_path_rendering"))) { | |
| if (NULL == fFunctions.fMatrixLoadf || | |
| NULL == fFunctions.fMatrixLoadIdentity) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| if ((kGL_GrGLStandard == fStandard && | |
| (glVer >= GR_GL_VER(4,3) || fExtensions.has("GL_ARB_program_interface_query"))) || | |
| (kGLES_GrGLStandard == fStandard && glVer >= GR_GL_VER(3,1))) { | |
| if (NULL == fFunctions.fGetProgramResourceLocation) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| if (kGLES_GrGLStandard == fStandard || glVer >= GR_GL_VER(4,1) || | |
| fExtensions.has("GL_ARB_ES2_compatibility")) { | |
| #if 0 // Enable this once Chrome gives us the function ptr | |
| if (NULL == fFunctions.fGetShaderPrecisionFormat) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| #endif | |
| } | |
| if (fExtensions.has("GL_NV_path_rendering")) { | |
| if (NULL == fFunctions.fPathCommands || | |
| NULL == fFunctions.fPathCoords || | |
| NULL == fFunctions.fPathParameteri || | |
| NULL == fFunctions.fPathParameterf || | |
| NULL == fFunctions.fGenPaths || | |
| NULL == fFunctions.fDeletePaths || | |
| NULL == fFunctions.fIsPath || | |
| NULL == fFunctions.fPathStencilFunc || | |
| NULL == fFunctions.fStencilFillPath || | |
| NULL == fFunctions.fStencilStrokePath || | |
| NULL == fFunctions.fStencilFillPathInstanced || | |
| NULL == fFunctions.fStencilStrokePathInstanced || | |
| NULL == fFunctions.fCoverFillPath || | |
| NULL == fFunctions.fCoverStrokePath || | |
| NULL == fFunctions.fCoverFillPathInstanced || | |
| NULL == fFunctions.fCoverStrokePathInstanced) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| if (kGL_GrGLStandard == fStandard) { | |
| // Some methods only exist on desktop | |
| if (NULL == fFunctions.fPathTexGen) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } else { | |
| // All additions through v1.3 exist on GLES | |
| if (NULL == fFunctions.fStencilThenCoverFillPath || | |
| NULL == fFunctions.fStencilThenCoverStrokePath || | |
| NULL == fFunctions.fStencilThenCoverFillPathInstanced || | |
| NULL == fFunctions.fStencilThenCoverStrokePathInstanced || | |
| NULL == fFunctions.fProgramPathFragmentInputGen || | |
| NULL == fFunctions.fPathMemoryGlyphIndexArray) { | |
| RETURN_FALSE_INTERFACE | |
| } | |
| } | |
| } | |
| return true; | |
| } |