| /* |
| * 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.fPathSubCommands = NULL; |
| newInterface->fFunctions.fPathSubCoords = NULL; |
| newInterface->fFunctions.fPathString = NULL; |
| newInterface->fFunctions.fPathGlyphs = NULL; |
| newInterface->fFunctions.fPathGlyphRange = NULL; |
| newInterface->fFunctions.fWeightPaths = NULL; |
| newInterface->fFunctions.fCopyPath = NULL; |
| newInterface->fFunctions.fInterpolatePaths = NULL; |
| newInterface->fFunctions.fTransformPath = NULL; |
| newInterface->fFunctions.fPathParameteriv = NULL; |
| newInterface->fFunctions.fPathParameteri = NULL; |
| newInterface->fFunctions.fPathParameterfv = NULL; |
| newInterface->fFunctions.fPathParameterf = NULL; |
| newInterface->fFunctions.fPathDashArray = NULL; |
| newInterface->fFunctions.fGenPaths = NULL; |
| newInterface->fFunctions.fDeletePaths = NULL; |
| newInterface->fFunctions.fIsPath = NULL; |
| newInterface->fFunctions.fPathStencilFunc = NULL; |
| newInterface->fFunctions.fPathStencilDepthOffset = NULL; |
| newInterface->fFunctions.fStencilFillPath = NULL; |
| newInterface->fFunctions.fStencilStrokePath = NULL; |
| newInterface->fFunctions.fStencilFillPathInstanced = NULL; |
| newInterface->fFunctions.fStencilStrokePathInstanced = NULL; |
| newInterface->fFunctions.fPathCoverDepthFunc = NULL; |
| newInterface->fFunctions.fPathColorGen = NULL; |
| newInterface->fFunctions.fPathTexGen = NULL; |
| newInterface->fFunctions.fPathFogGen = NULL; |
| newInterface->fFunctions.fCoverFillPath = NULL; |
| newInterface->fFunctions.fCoverStrokePath = NULL; |
| newInterface->fFunctions.fCoverFillPathInstanced = NULL; |
| newInterface->fFunctions.fCoverStrokePathInstanced = NULL; |
| newInterface->fFunctions.fGetPathParameteriv = NULL; |
| newInterface->fFunctions.fGetPathParameterfv = NULL; |
| newInterface->fFunctions.fGetPathCommands = NULL; |
| newInterface->fFunctions.fGetPathCoords = NULL; |
| newInterface->fFunctions.fGetPathDashArray = NULL; |
| newInterface->fFunctions.fGetPathMetrics = NULL; |
| newInterface->fFunctions.fGetPathMetricRange = NULL; |
| newInterface->fFunctions.fGetPathSpacing = NULL; |
| newInterface->fFunctions.fGetPathColorGeniv = NULL; |
| newInterface->fFunctions.fGetPathColorGenfv = NULL; |
| newInterface->fFunctions.fGetPathTexGeniv = NULL; |
| newInterface->fFunctions.fGetPathTexGenfv = NULL; |
| newInterface->fFunctions.fIsPointInFillPath = NULL; |
| newInterface->fFunctions.fIsPointInStrokePath = NULL; |
| newInterface->fFunctions.fGetPathLength = NULL; |
| newInterface->fFunctions.fPointAlongPath = 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(NULL != 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.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 |
| } |
| } |
| if (fExtensions.has("GL_EXT_direct_state_access")) { |
| if (NULL == fFunctions.fMatrixLoadf || |
| NULL == fFunctions.fMatrixLoadIdentity) { |
| RETURN_FALSE_INTERFACE |
| } |
| } |
| if (fExtensions.has("GL_NV_path_rendering")) { |
| if (NULL == fFunctions.fPathCommands || |
| NULL == fFunctions.fPathCoords || |
| NULL == fFunctions.fPathSubCommands || |
| NULL == fFunctions.fPathSubCoords || |
| NULL == fFunctions.fPathString || |
| NULL == fFunctions.fPathGlyphs || |
| NULL == fFunctions.fPathGlyphRange || |
| NULL == fFunctions.fWeightPaths || |
| NULL == fFunctions.fCopyPath || |
| NULL == fFunctions.fInterpolatePaths || |
| NULL == fFunctions.fTransformPath || |
| NULL == fFunctions.fPathParameteriv || |
| NULL == fFunctions.fPathParameteri || |
| NULL == fFunctions.fPathParameterfv || |
| NULL == fFunctions.fPathParameterf || |
| NULL == fFunctions.fPathDashArray || |
| NULL == fFunctions.fGenPaths || |
| NULL == fFunctions.fDeletePaths || |
| NULL == fFunctions.fIsPath || |
| NULL == fFunctions.fPathStencilFunc || |
| NULL == fFunctions.fPathStencilDepthOffset || |
| NULL == fFunctions.fStencilFillPath || |
| NULL == fFunctions.fStencilStrokePath || |
| NULL == fFunctions.fStencilFillPathInstanced || |
| NULL == fFunctions.fStencilStrokePathInstanced || |
| NULL == fFunctions.fPathCoverDepthFunc || |
| NULL == fFunctions.fPathColorGen || |
| NULL == fFunctions.fPathTexGen || |
| NULL == fFunctions.fPathFogGen || |
| NULL == fFunctions.fCoverFillPath || |
| NULL == fFunctions.fCoverStrokePath || |
| NULL == fFunctions.fCoverFillPathInstanced || |
| NULL == fFunctions.fCoverStrokePathInstanced || |
| NULL == fFunctions.fGetPathParameteriv || |
| NULL == fFunctions.fGetPathParameterfv || |
| NULL == fFunctions.fGetPathCommands || |
| NULL == fFunctions.fGetPathCoords || |
| NULL == fFunctions.fGetPathDashArray || |
| NULL == fFunctions.fGetPathMetrics || |
| NULL == fFunctions.fGetPathMetricRange || |
| NULL == fFunctions.fGetPathSpacing || |
| NULL == fFunctions.fGetPathColorGeniv || |
| NULL == fFunctions.fGetPathColorGenfv || |
| NULL == fFunctions.fGetPathTexGeniv || |
| NULL == fFunctions.fGetPathTexGenfv || |
| NULL == fFunctions.fIsPointInFillPath || |
| NULL == fFunctions.fIsPointInStrokePath || |
| NULL == fFunctions.fGetPathLength || |
| NULL == fFunctions.fPointAlongPath) { |
| 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; |
| } |
| } |
| return true; |
| } |
