| /* | |
| * Copyright 2012 Google Inc. | |
| * | |
| * Use of this source code is governed by a BSD-style license that can be | |
| * found in the LICENSE file. | |
| */ | |
| #include "GrGLCaps.h" | |
| #include "GrGLContext.h" | |
| #include "SkTSearch.h" | |
| #include "SkTSort.h" | |
| GrGLCaps::GrGLCaps() { | |
| this->reset(); | |
| } | |
| void GrGLCaps::reset() { | |
| INHERITED::reset(); | |
| fVerifiedColorConfigs.reset(); | |
| fStencilFormats.reset(); | |
| fStencilVerifiedColorConfigs.reset(); | |
| fMSFBOType = kNone_MSFBOType; | |
| fInvalidateFBType = kNone_InvalidateFBType; | |
| fLATCAlias = kLATC_LATCAlias; | |
| fMapBufferType = kNone_MapBufferType; | |
| fMaxFragmentUniformVectors = 0; | |
| fMaxVertexAttributes = 0; | |
| fMaxFragmentTextureUnits = 0; | |
| fMaxFixedFunctionTextureCoords = 0; | |
| fRGBA8RenderbufferSupport = false; | |
| fBGRAIsInternalFormat = false; | |
| fTextureSwizzleSupport = false; | |
| fUnpackRowLengthSupport = false; | |
| fUnpackFlipYSupport = false; | |
| fPackRowLengthSupport = false; | |
| fPackFlipYSupport = false; | |
| fTextureUsageSupport = false; | |
| fTexStorageSupport = false; | |
| fTextureRedSupport = false; | |
| fImagingSupport = false; | |
| fTwoFormatLimit = false; | |
| fFragCoordsConventionSupport = false; | |
| fVertexArrayObjectSupport = false; | |
| fES2CompatibilitySupport = false; | |
| fUseNonVBOVertexAndIndexDynamicData = false; | |
| fIsCoreProfile = false; | |
| fFullClearIsFree = false; | |
| fDropsTileOnZeroDivide = false; | |
| fFBFetchSupport = false; | |
| fFBFetchColorName = NULL; | |
| fFBFetchExtensionString = NULL; | |
| fReadPixelsSupportedCache.reset(); | |
| } | |
| GrGLCaps::GrGLCaps(const GrGLCaps& caps) : GrDrawTargetCaps() { | |
| *this = caps; | |
| } | |
| GrGLCaps& GrGLCaps::operator= (const GrGLCaps& caps) { | |
| INHERITED::operator=(caps); | |
| fVerifiedColorConfigs = caps.fVerifiedColorConfigs; | |
| fStencilFormats = caps.fStencilFormats; | |
| fStencilVerifiedColorConfigs = caps.fStencilVerifiedColorConfigs; | |
| fLATCAlias = caps.fLATCAlias; | |
| fMaxFragmentUniformVectors = caps.fMaxFragmentUniformVectors; | |
| fMaxVertexAttributes = caps.fMaxVertexAttributes; | |
| fMaxFragmentTextureUnits = caps.fMaxFragmentTextureUnits; | |
| fMaxFixedFunctionTextureCoords = caps.fMaxFixedFunctionTextureCoords; | |
| fMSFBOType = caps.fMSFBOType; | |
| fInvalidateFBType = caps.fInvalidateFBType; | |
| fMapBufferType = caps.fMapBufferType; | |
| fRGBA8RenderbufferSupport = caps.fRGBA8RenderbufferSupport; | |
| fBGRAIsInternalFormat = caps.fBGRAIsInternalFormat; | |
| fTextureSwizzleSupport = caps.fTextureSwizzleSupport; | |
| fUnpackRowLengthSupport = caps.fUnpackRowLengthSupport; | |
| fUnpackFlipYSupport = caps.fUnpackFlipYSupport; | |
| fPackRowLengthSupport = caps.fPackRowLengthSupport; | |
| fPackFlipYSupport = caps.fPackFlipYSupport; | |
| fTextureUsageSupport = caps.fTextureUsageSupport; | |
| fTexStorageSupport = caps.fTexStorageSupport; | |
| fTextureRedSupport = caps.fTextureRedSupport; | |
| fImagingSupport = caps.fImagingSupport; | |
| fTwoFormatLimit = caps.fTwoFormatLimit; | |
| fFragCoordsConventionSupport = caps.fFragCoordsConventionSupport; | |
| fVertexArrayObjectSupport = caps.fVertexArrayObjectSupport; | |
| fES2CompatibilitySupport = caps.fES2CompatibilitySupport; | |
| fUseNonVBOVertexAndIndexDynamicData = caps.fUseNonVBOVertexAndIndexDynamicData; | |
| fIsCoreProfile = caps.fIsCoreProfile; | |
| fFullClearIsFree = caps.fFullClearIsFree; | |
| fDropsTileOnZeroDivide = caps.fDropsTileOnZeroDivide; | |
| fFBFetchSupport = caps.fFBFetchSupport; | |
| fFBFetchColorName = caps.fFBFetchColorName; | |
| fFBFetchExtensionString = caps.fFBFetchExtensionString; | |
| return *this; | |
| } | |
| bool GrGLCaps::init(const GrGLContextInfo& ctxInfo, const GrGLInterface* gli) { | |
| this->reset(); | |
| if (!ctxInfo.isInitialized()) { | |
| return false; | |
| } | |
| GrGLStandard standard = ctxInfo.standard(); | |
| GrGLVersion version = ctxInfo.version(); | |
| /************************************************************************** | |
| * Caps specific to GrGLCaps | |
| **************************************************************************/ | |
| if (kGLES_GrGLStandard == standard) { | |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_FRAGMENT_UNIFORM_VECTORS, | |
| &fMaxFragmentUniformVectors); | |
| } else { | |
| SkASSERT(kGL_GrGLStandard == standard); | |
| GrGLint max; | |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, &max); | |
| fMaxFragmentUniformVectors = max / 4; | |
| if (version >= GR_GL_VER(3, 2)) { | |
| GrGLint profileMask; | |
| GR_GL_GetIntegerv(gli, GR_GL_CONTEXT_PROFILE_MASK, &profileMask); | |
| fIsCoreProfile = SkToBool(profileMask & GR_GL_CONTEXT_CORE_PROFILE_BIT); | |
| } | |
| if (!fIsCoreProfile) { | |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_TEXTURE_COORDS, &fMaxFixedFunctionTextureCoords); | |
| // Sanity check | |
| SkASSERT(fMaxFixedFunctionTextureCoords > 0 && fMaxFixedFunctionTextureCoords < 128); | |
| } | |
| } | |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_VERTEX_ATTRIBS, &fMaxVertexAttributes); | |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_TEXTURE_IMAGE_UNITS, &fMaxFragmentTextureUnits); | |
| if (kGL_GrGLStandard == standard) { | |
| fRGBA8RenderbufferSupport = true; | |
| } else { | |
| fRGBA8RenderbufferSupport = version >= GR_GL_VER(3,0) || | |
| ctxInfo.hasExtension("GL_OES_rgb8_rgba8") || | |
| ctxInfo.hasExtension("GL_ARM_rgba8"); | |
| } | |
| if (kGL_GrGLStandard == standard) { | |
| fTextureSwizzleSupport = version >= GR_GL_VER(3,3) || | |
| ctxInfo.hasExtension("GL_ARB_texture_swizzle"); | |
| } else { | |
| fTextureSwizzleSupport = version >= GR_GL_VER(3,0); | |
| } | |
| if (kGL_GrGLStandard == standard) { | |
| fUnpackRowLengthSupport = true; | |
| fUnpackFlipYSupport = false; | |
| fPackRowLengthSupport = true; | |
| fPackFlipYSupport = false; | |
| } else { | |
| fUnpackRowLengthSupport = version >= GR_GL_VER(3,0) || | |
| ctxInfo.hasExtension("GL_EXT_unpack_subimage"); | |
| fUnpackFlipYSupport = ctxInfo.hasExtension("GL_CHROMIUM_flipy"); | |
| fPackRowLengthSupport = version >= GR_GL_VER(3,0) || | |
| ctxInfo.hasExtension("GL_NV_pack_subimage"); | |
| fPackFlipYSupport = | |
| ctxInfo.hasExtension("GL_ANGLE_pack_reverse_row_order"); | |
| } | |
| fTextureUsageSupport = (kGLES_GrGLStandard == standard) && | |
| ctxInfo.hasExtension("GL_ANGLE_texture_usage"); | |
| if (kGL_GrGLStandard == standard) { | |
| // The EXT version can apply to either GL or GLES. | |
| fTexStorageSupport = version >= GR_GL_VER(4,2) || | |
| ctxInfo.hasExtension("GL_ARB_texture_storage") || | |
| ctxInfo.hasExtension("GL_EXT_texture_storage"); | |
| } else { | |
| // Qualcomm Adreno drivers appear to have issues with texture storage. | |
| fTexStorageSupport = (version >= GR_GL_VER(3,0) && | |
| kQualcomm_GrGLVendor != ctxInfo.vendor()) || | |
| ctxInfo.hasExtension("GL_EXT_texture_storage"); | |
| } | |
| // ARB_texture_rg is part of OpenGL 3.0, but mesa doesn't support GL_RED | |
| // and GL_RG on FBO textures. | |
| if (!ctxInfo.isMesa()) { | |
| if (kGL_GrGLStandard == standard) { | |
| fTextureRedSupport = version >= GR_GL_VER(3,0) || | |
| ctxInfo.hasExtension("GL_ARB_texture_rg"); | |
| } else { | |
| fTextureRedSupport = version >= GR_GL_VER(3,0) || | |
| ctxInfo.hasExtension("GL_EXT_texture_rg"); | |
| } | |
| } | |
| fImagingSupport = kGL_GrGLStandard == standard && | |
| ctxInfo.hasExtension("GL_ARB_imaging"); | |
| // ES 2 only guarantees RGBA/uchar + one other format/type combo for | |
| // ReadPixels. The other format has to checked at run-time since it | |
| // can change based on which render target is bound | |
| fTwoFormatLimit = kGLES_GrGLStandard == standard; | |
| // Frag Coords Convention support is not part of ES | |
| // Known issue on at least some Intel platforms: | |
| // http://code.google.com/p/skia/issues/detail?id=946 | |
| if (kIntel_GrGLVendor != ctxInfo.vendor() && kGLES_GrGLStandard != standard) { | |
| fFragCoordsConventionSupport = ctxInfo.glslGeneration() >= k150_GrGLSLGeneration || | |
| ctxInfo.hasExtension("GL_ARB_fragment_coord_conventions"); | |
| } | |
| // SGX and Mali GPUs that are based on a tiled-deferred architecture that have trouble with | |
| // frequently changing VBOs. We've measured a performance increase using non-VBO vertex | |
| // data for dynamic content on these GPUs. Perhaps we should read the renderer string and | |
| // limit this decision to specific GPU families rather than basing it on the vendor alone. | |
| if (!GR_GL_MUST_USE_VBO && | |
| (kARM_GrGLVendor == ctxInfo.vendor() || | |
| kImagination_GrGLVendor == ctxInfo.vendor() || | |
| kQualcomm_GrGLVendor == ctxInfo.vendor())) { | |
| fUseNonVBOVertexAndIndexDynamicData = true; | |
| } | |
| if ((kGL_GrGLStandard == standard && version >= GR_GL_VER(4,3)) || | |
| (kGLES_GrGLStandard == standard && version >= GR_GL_VER(3,0)) || | |
| ctxInfo.hasExtension("GL_ARB_invalidate_subdata")) { | |
| fDiscardRenderTargetSupport = true; | |
| fInvalidateFBType = kInvalidate_InvalidateFBType; | |
| } else if (ctxInfo.hasExtension("GL_EXT_discard_framebuffer")) { | |
| fDiscardRenderTargetSupport = true; | |
| fInvalidateFBType = kDiscard_InvalidateFBType; | |
| } | |
| if (kARM_GrGLVendor == ctxInfo.vendor() || kImagination_GrGLVendor == ctxInfo.vendor()) { | |
| fFullClearIsFree = true; | |
| } | |
| if (kGL_GrGLStandard == standard) { | |
| fVertexArrayObjectSupport = version >= GR_GL_VER(3, 0) || | |
| ctxInfo.hasExtension("GL_ARB_vertex_array_object") || | |
| ctxInfo.hasExtension("GL_APPLE_vertex_array_object"); | |
| } else { | |
| fVertexArrayObjectSupport = version >= GR_GL_VER(3, 0) || | |
| ctxInfo.hasExtension("GL_OES_vertex_array_object"); | |
| } | |
| if (kGL_GrGLStandard == standard) { | |
| fES2CompatibilitySupport = ctxInfo.hasExtension("GL_ARB_ES2_compatibility"); | |
| } | |
| else { | |
| fES2CompatibilitySupport = true; | |
| } | |
| if (kGLES_GrGLStandard == standard) { | |
| if (ctxInfo.hasExtension("GL_EXT_shader_framebuffer_fetch")) { | |
| fFBFetchSupport = true; | |
| fFBFetchColorName = "gl_LastFragData[0]"; | |
| fFBFetchExtensionString = "GL_EXT_shader_framebuffer_fetch"; | |
| } else if (ctxInfo.hasExtension("GL_NV_shader_framebuffer_fetch")) { | |
| fFBFetchSupport = true; | |
| fFBFetchColorName = "gl_LastFragData[0]"; | |
| fFBFetchExtensionString = "GL_NV_shader_framebuffer_fetch"; | |
| } else if (ctxInfo.hasExtension("GL_ARM_shader_framebuffer_fetch")) { | |
| // The arm extension also requires an additional flag which we will set onResetContext | |
| // This is all temporary. | |
| fFBFetchSupport = true; | |
| fFBFetchColorName = "gl_LastFragColorARM"; | |
| fFBFetchExtensionString = "GL_ARM_shader_framebuffer_fetch"; | |
| } | |
| } | |
| // Adreno GPUs have a tendency to drop tiles when there is a divide-by-zero in a shader | |
| fDropsTileOnZeroDivide = kQualcomm_GrGLVendor == ctxInfo.vendor(); | |
| this->initFSAASupport(ctxInfo, gli); | |
| this->initStencilFormats(ctxInfo); | |
| /************************************************************************** | |
| * GrDrawTargetCaps fields | |
| **************************************************************************/ | |
| if (kGL_GrGLStandard == standard) { | |
| // we could also look for GL_ATI_separate_stencil extension or | |
| // GL_EXT_stencil_two_side but they use different function signatures | |
| // than GL2.0+ (and than each other). | |
| fTwoSidedStencilSupport = (ctxInfo.version() >= GR_GL_VER(2,0)); | |
| // supported on GL 1.4 and higher or by extension | |
| fStencilWrapOpsSupport = (ctxInfo.version() >= GR_GL_VER(1,4)) || | |
| ctxInfo.hasExtension("GL_EXT_stencil_wrap"); | |
| } else { | |
| // ES 2 has two sided stencil and stencil wrap | |
| fTwoSidedStencilSupport = true; | |
| fStencilWrapOpsSupport = true; | |
| } | |
| if (kGL_GrGLStandard == standard) { | |
| fMapBufferFlags = kCanMap_MapFlag; // we require VBO support and the desktop VBO | |
| // extension includes glMapBuffer. | |
| if (version >= GR_GL_VER(3, 0) || ctxInfo.hasExtension("GL_ARB_map_buffer_range")) { | |
| fMapBufferFlags |= kSubset_MapFlag; | |
| fMapBufferType = kMapBufferRange_MapBufferType; | |
| } else { | |
| fMapBufferType = kMapBuffer_MapBufferType; | |
| } | |
| } else { | |
| // Unextended GLES2 doesn't have any buffer mapping. | |
| fMapBufferFlags = kNone_MapBufferType; | |
| if (ctxInfo.hasExtension("GL_CHROMIUM_map_sub")) { | |
| fMapBufferFlags = kCanMap_MapFlag | kSubset_MapFlag; | |
| fMapBufferType = kChromium_MapBufferType; | |
| } else if (version >= GR_GL_VER(3, 0) || ctxInfo.hasExtension("GL_EXT_map_buffer_range")) { | |
| fMapBufferFlags = kCanMap_MapFlag | kSubset_MapFlag; | |
| fMapBufferType = kMapBufferRange_MapBufferType; | |
| } else if (ctxInfo.hasExtension("GL_OES_mapbuffer")) { | |
| fMapBufferFlags = kCanMap_MapFlag; | |
| fMapBufferType = kMapBuffer_MapBufferType; | |
| } | |
| } | |
| if (kGL_GrGLStandard == standard) { | |
| SkASSERT(ctxInfo.version() >= GR_GL_VER(2,0) || | |
| ctxInfo.hasExtension("GL_ARB_texture_non_power_of_two")); | |
| fNPOTTextureTileSupport = true; | |
| fMipMapSupport = true; | |
| } else { | |
| // Unextended ES2 supports NPOT textures with clamp_to_edge and non-mip filters only | |
| // ES3 has no limitations. | |
| fNPOTTextureTileSupport = ctxInfo.version() >= GR_GL_VER(3,0) || | |
| ctxInfo.hasExtension("GL_OES_texture_npot"); | |
| // ES2 supports MIP mapping for POT textures but our caps don't allow for limited MIP | |
| // support. The OES extension or ES 3.0 allow for MIPS on NPOT textures. So, apparently, | |
| // does the undocumented GL_IMG_texture_npot extension. This extension does not seem to | |
| // to alllow arbitrary wrap modes, however. | |
| fMipMapSupport = fNPOTTextureTileSupport || ctxInfo.hasExtension("GL_IMG_texture_npot"); | |
| } | |
| fHWAALineSupport = (kGL_GrGLStandard == standard); | |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_TEXTURE_SIZE, &fMaxTextureSize); | |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_RENDERBUFFER_SIZE, &fMaxRenderTargetSize); | |
| // Our render targets are always created with textures as the color | |
| // attachment, hence this min: | |
| fMaxRenderTargetSize = SkTMin(fMaxTextureSize, fMaxRenderTargetSize); | |
| fPathRenderingSupport = ctxInfo.hasExtension("GL_NV_path_rendering"); | |
| if (fPathRenderingSupport) { | |
| if (kGL_GrGLStandard == standard) { | |
| // We need one of the two possible texturing methods: using fixed function pipeline | |
| // (PathTexGen, texcoords, ...) or using the newer NVPR API additions that support | |
| // setting individual fragment inputs with ProgramPathFragmentInputGen. The API | |
| // additions are detected by checking the existence of the function. Eventually we may | |
| // choose to remove the fixed function codepath. | |
| // Set fMaxFixedFunctionTextureCoords = 0 here if you want to force | |
| // ProgramPathFragmentInputGen usage on desktop. | |
| fPathRenderingSupport = ctxInfo.hasExtension("GL_EXT_direct_state_access") && | |
| (fMaxFixedFunctionTextureCoords > 0 || | |
| ((ctxInfo.version() >= GR_GL_VER(4,3) || | |
| ctxInfo.hasExtension("GL_ARB_program_interface_query")) && | |
| gli->fFunctions.fProgramPathFragmentInputGen)); | |
| } else { | |
| fPathRenderingSupport = ctxInfo.version() >= GR_GL_VER(3,1); | |
| } | |
| } | |
| fGpuTracingSupport = ctxInfo.hasExtension("GL_EXT_debug_marker"); | |
| // For now these two are equivalent but we could have dst read in shader via some other method | |
| fDstReadInShaderSupport = fFBFetchSupport; | |
| // Disable scratch texture reuse on Mali and Adreno devices | |
| fReuseScratchTextures = kARM_GrGLVendor != ctxInfo.vendor() && | |
| kQualcomm_GrGLVendor != ctxInfo.vendor(); | |
| // Enable supported shader-related caps | |
| if (kGL_GrGLStandard == standard) { | |
| fDualSourceBlendingSupport = ctxInfo.version() >= GR_GL_VER(3,3) || | |
| ctxInfo.hasExtension("GL_ARB_blend_func_extended"); | |
| fShaderDerivativeSupport = true; | |
| // we don't support GL_ARB_geometry_shader4, just GL 3.2+ GS | |
| fGeometryShaderSupport = ctxInfo.version() >= GR_GL_VER(3,2) && | |
| ctxInfo.glslGeneration() >= k150_GrGLSLGeneration; | |
| } else { | |
| fShaderDerivativeSupport = ctxInfo.version() >= GR_GL_VER(3, 0) || | |
| ctxInfo.hasExtension("GL_OES_standard_derivatives"); | |
| } | |
| if (GrGLCaps::kES_IMG_MsToTexture_MSFBOType == fMSFBOType) { | |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_SAMPLES_IMG, &fMaxSampleCount); | |
| } else if (GrGLCaps::kNone_MSFBOType != fMSFBOType) { | |
| GR_GL_GetIntegerv(gli, GR_GL_MAX_SAMPLES, &fMaxSampleCount); | |
| } | |
| if (kPowerVR54x_GrGLRenderer == ctxInfo.renderer() || | |
| kPowerVRRogue_GrGLRenderer == ctxInfo.renderer()) { | |
| fUseDrawInsteadOfClear = true; | |
| } | |
| this->initConfigTexturableTable(ctxInfo, gli); | |
| this->initConfigRenderableTable(ctxInfo); | |
| this->initShaderPrecisionTable(ctxInfo, gli); | |
| return true; | |
| } | |
| void GrGLCaps::initConfigRenderableTable(const GrGLContextInfo& ctxInfo) { | |
| // OpenGL < 3.0 | |
| // no support for render targets unless the GL_ARB_framebuffer_object | |
| // extension is supported (in which case we get ALPHA, RED, RG, RGB, | |
| // RGBA (ALPHA8, RGBA4, RGBA8) for OpenGL > 1.1). Note that we | |
| // probably don't get R8 in this case. | |
| // OpenGL 3.0 | |
| // base color renderable: ALPHA, RED, RG, RGB, and RGBA | |
| // sized derivatives: ALPHA8, R8, RGBA4, RGBA8 | |
| // >= OpenGL 3.1 | |
| // base color renderable: RED, RG, RGB, and RGBA | |
| // sized derivatives: R8, RGBA4, RGBA8 | |
| // if the GL_ARB_compatibility extension is supported then we get back | |
| // support for GL_ALPHA and ALPHA8 | |
| // GL_EXT_bgra adds BGRA render targets to any version | |
| // ES 2.0 | |
| // color renderable: RGBA4, RGB5_A1, RGB565 | |
| // GL_EXT_texture_rg adds support for R8 as a color render target | |
| // GL_OES_rgb8_rgba8 and/or GL_ARM_rgba8 adds support for RGBA8 | |
| // GL_EXT_texture_format_BGRA8888 and/or GL_APPLE_texture_format_BGRA8888 added BGRA support | |
| // ES 3.0 | |
| // Same as ES 2.0 except R8 and RGBA8 are supported without extensions (the functions called | |
| // below already account for this). | |
| GrGLStandard standard = ctxInfo.standard(); | |
| enum { | |
| kNo_MSAA = 0, | |
| kYes_MSAA = 1, | |
| }; | |
| if (kGL_GrGLStandard == standard) { | |
| // Post 3.0 we will get R8 | |
| // Prior to 3.0 we will get ALPHA8 (with GL_ARB_framebuffer_object) | |
| if (ctxInfo.version() >= GR_GL_VER(3,0) || | |
| ctxInfo.hasExtension("GL_ARB_framebuffer_object")) { | |
| fConfigRenderSupport[kAlpha_8_GrPixelConfig][kNo_MSAA] = true; | |
| fConfigRenderSupport[kAlpha_8_GrPixelConfig][kYes_MSAA] = true; | |
| } | |
| } else { | |
| // On ES we can only hope for R8 | |
| fConfigRenderSupport[kAlpha_8_GrPixelConfig][kNo_MSAA] = fTextureRedSupport; | |
| fConfigRenderSupport[kAlpha_8_GrPixelConfig][kYes_MSAA] = fTextureRedSupport; | |
| } | |
| if (kGL_GrGLStandard != standard) { | |
| // only available in ES | |
| fConfigRenderSupport[kRGB_565_GrPixelConfig][kNo_MSAA] = true; | |
| fConfigRenderSupport[kRGB_565_GrPixelConfig][kYes_MSAA] = true; | |
| } | |
| // we no longer support 444 as a render target | |
| fConfigRenderSupport[kRGBA_4444_GrPixelConfig][kNo_MSAA] = false; | |
| fConfigRenderSupport[kRGBA_4444_GrPixelConfig][kYes_MSAA] = false; | |
| if (this->fRGBA8RenderbufferSupport) { | |
| fConfigRenderSupport[kRGBA_8888_GrPixelConfig][kNo_MSAA] = true; | |
| fConfigRenderSupport[kRGBA_8888_GrPixelConfig][kYes_MSAA] = true; | |
| } | |
| if (this->isConfigTexturable(kBGRA_8888_GrPixelConfig)) { | |
| fConfigRenderSupport[kBGRA_8888_GrPixelConfig][kNo_MSAA] = true; | |
| // The GL_EXT_texture_format_BGRA8888 extension does not add BGRA to the list of | |
| // configs that are color-renderable and can be passed to glRenderBufferStorageMultisample. | |
| // Chromium may have an extension to allow BGRA renderbuffers to work on desktop platforms. | |
| if (ctxInfo.hasExtension("GL_CHROMIUM_renderbuffer_format_BGRA8888")) { | |
| fConfigRenderSupport[kBGRA_8888_GrPixelConfig][kYes_MSAA] = true; | |
| } else { | |
| fConfigRenderSupport[kBGRA_8888_GrPixelConfig][kYes_MSAA] = | |
| !fBGRAIsInternalFormat || !this->usesMSAARenderBuffers(); | |
| } | |
| } | |
| if (this->fRGBA8RenderbufferSupport && this->isConfigTexturable(kSRGBA_8888_GrPixelConfig)) { | |
| if (kGL_GrGLStandard == standard) { | |
| if (ctxInfo.version() >= GR_GL_VER(3,0) || | |
| ctxInfo.hasExtension("GL_ARB_framebuffer_sRGB") || | |
| ctxInfo.hasExtension("GL_EXT_framebuffer_sRGB")) { | |
| fConfigRenderSupport[kSRGBA_8888_GrPixelConfig][kNo_MSAA] = true; | |
| fConfigRenderSupport[kSRGBA_8888_GrPixelConfig][kYes_MSAA] = true; | |
| } | |
| } else { | |
| if (ctxInfo.version() >= GR_GL_VER(3,0) || | |
| ctxInfo.hasExtension("GL_EXT_sRGB")) { | |
| fConfigRenderSupport[kSRGBA_8888_GrPixelConfig][kNo_MSAA] = true; | |
| fConfigRenderSupport[kSRGBA_8888_GrPixelConfig][kYes_MSAA] = true; | |
| } | |
| } | |
| } | |
| if (this->isConfigTexturable(kRGBA_float_GrPixelConfig)) { | |
| if (kGL_GrGLStandard == standard) { | |
| fConfigRenderSupport[kRGBA_float_GrPixelConfig][kNo_MSAA] = true; | |
| fConfigRenderSupport[kRGBA_float_GrPixelConfig][kYes_MSAA] = true; | |
| } else { | |
| if (ctxInfo.hasExtension("GL_EXT_color_buffer_float")) { | |
| fConfigRenderSupport[kRGBA_float_GrPixelConfig][kNo_MSAA] = true; | |
| } else { | |
| fConfigRenderSupport[kRGBA_float_GrPixelConfig][kNo_MSAA] = false; | |
| } | |
| // for now we don't support floating point MSAA on ES | |
| fConfigRenderSupport[kAlpha_half_GrPixelConfig][kYes_MSAA] = false; | |
| } | |
| } | |
| if (this->isConfigTexturable(kAlpha_half_GrPixelConfig)) { | |
| if (kGL_GrGLStandard == standard) { | |
| fConfigRenderSupport[kAlpha_half_GrPixelConfig][kNo_MSAA] = true; | |
| fConfigRenderSupport[kAlpha_half_GrPixelConfig][kYes_MSAA] = true; | |
| } else if (ctxInfo.version() >= GR_GL_VER(3,0)) { | |
| fConfigRenderSupport[kAlpha_half_GrPixelConfig][kNo_MSAA] = true; | |
| // for now we don't support floating point MSAA on ES | |
| fConfigRenderSupport[kAlpha_half_GrPixelConfig][kYes_MSAA] = false; | |
| } else { | |
| if (ctxInfo.hasExtension("GL_EXT_color_buffer_half_float") && fTextureRedSupport) { | |
| fConfigRenderSupport[kAlpha_half_GrPixelConfig][kNo_MSAA] = true; | |
| } else { | |
| fConfigRenderSupport[kAlpha_half_GrPixelConfig][kNo_MSAA] = false; | |
| } | |
| // for now we don't support floating point MSAA on ES | |
| fConfigRenderSupport[kAlpha_half_GrPixelConfig][kYes_MSAA] = false; | |
| } | |
| } | |
| // If we don't support MSAA then undo any places above where we set a config as renderable with | |
| // msaa. | |
| if (kNone_MSFBOType == fMSFBOType) { | |
| for (int i = 0; i < kGrPixelConfigCnt; ++i) { | |
| fConfigRenderSupport[i][kYes_MSAA] = false; | |
| } | |
| } | |
| } | |
| void GrGLCaps::initConfigTexturableTable(const GrGLContextInfo& ctxInfo, const GrGLInterface* gli) { | |
| GrGLStandard standard = ctxInfo.standard(); | |
| GrGLVersion version = ctxInfo.version(); | |
| // Base texture support | |
| fConfigTextureSupport[kAlpha_8_GrPixelConfig] = true; | |
| fConfigTextureSupport[kRGB_565_GrPixelConfig] = true; | |
| fConfigTextureSupport[kRGBA_4444_GrPixelConfig] = true; | |
| fConfigTextureSupport[kRGBA_8888_GrPixelConfig] = true; | |
| // Check for 8-bit palette.. | |
| GrGLint numFormats; | |
| GR_GL_GetIntegerv(gli, GR_GL_NUM_COMPRESSED_TEXTURE_FORMATS, &numFormats); | |
| if (numFormats) { | |
| SkAutoSTMalloc<10, GrGLint> formats(numFormats); | |
| GR_GL_GetIntegerv(gli, GR_GL_COMPRESSED_TEXTURE_FORMATS, formats); | |
| for (int i = 0; i < numFormats; ++i) { | |
| if (GR_GL_PALETTE8_RGBA8 == formats[i]) { | |
| fConfigTextureSupport[kIndex_8_GrPixelConfig] = true; | |
| break; | |
| } | |
| } | |
| } | |
| // Check for BGRA | |
| if (kGL_GrGLStandard == standard) { | |
| fConfigTextureSupport[kBGRA_8888_GrPixelConfig] = | |
| version >= GR_GL_VER(1,2) || ctxInfo.hasExtension("GL_EXT_bgra"); | |
| } else { | |
| if (ctxInfo.hasExtension("GL_APPLE_texture_format_BGRA8888")) { | |
| fConfigTextureSupport[kBGRA_8888_GrPixelConfig] = true; | |
| } else if (ctxInfo.hasExtension("GL_EXT_texture_format_BGRA8888")) { | |
| fConfigTextureSupport[kBGRA_8888_GrPixelConfig] = true; | |
| fBGRAIsInternalFormat = true; | |
| } | |
| SkASSERT(fConfigTextureSupport[kBGRA_8888_GrPixelConfig] || | |
| kSkia8888_GrPixelConfig != kBGRA_8888_GrPixelConfig); | |
| } | |
| // Check for sRGBA | |
| if (kGL_GrGLStandard == standard) { | |
| fConfigTextureSupport[kSRGBA_8888_GrPixelConfig] = | |
| (version >= GR_GL_VER(3,0) || ctxInfo.hasExtension("GL_EXT_texture_sRGB")); | |
| } else { | |
| fConfigTextureSupport[kSRGBA_8888_GrPixelConfig] = | |
| (version >= GR_GL_VER(3,0) || ctxInfo.hasExtension("GL_EXT_sRGB")); | |
| } | |
| // Compressed texture support | |
| // glCompressedTexImage2D is available on all OpenGL ES devices... | |
| // however, it is only available on standard OpenGL after version 1.3 | |
| bool hasCompressTex2D = (kGL_GrGLStandard != standard || version >= GR_GL_VER(1, 3)); | |
| fCompressedTexSubImageSupport = | |
| hasCompressTex2D && (gli->fFunctions.fCompressedTexSubImage2D); | |
| // Check for ETC1 | |
| bool hasETC1 = false; | |
| // First check version for support | |
| if (kGL_GrGLStandard == standard) { | |
| hasETC1 = hasCompressTex2D && | |
| (version >= GR_GL_VER(4, 3) || | |
| ctxInfo.hasExtension("GL_ARB_ES3_compatibility")); | |
| } else { | |
| hasETC1 = hasCompressTex2D && | |
| (version >= GR_GL_VER(3, 0) || | |
| ctxInfo.hasExtension("GL_OES_compressed_ETC1_RGB8_texture") || | |
| // ETC2 is a superset of ETC1, so we can just check for that, too. | |
| (ctxInfo.hasExtension("GL_OES_compressed_ETC2_RGB8_texture") && | |
| ctxInfo.hasExtension("GL_OES_compressed_ETC2_RGBA8_texture"))); | |
| } | |
| fConfigTextureSupport[kETC1_GrPixelConfig] = hasETC1; | |
| // Check for LATC under its various forms | |
| LATCAlias alias = kLATC_LATCAlias; | |
| bool hasLATC = hasCompressTex2D && | |
| (ctxInfo.hasExtension("GL_EXT_texture_compression_latc") || | |
| ctxInfo.hasExtension("GL_NV_texture_compression_latc")); | |
| // Check for RGTC | |
| if (!hasLATC) { | |
| // If we're using OpenGL 3.0 or later, then we have RGTC, an identical compression format. | |
| if (kGL_GrGLStandard == standard) { | |
| hasLATC = version >= GR_GL_VER(3, 0); | |
| } | |
| if (!hasLATC) { | |
| hasLATC = | |
| ctxInfo.hasExtension("GL_EXT_texture_compression_rgtc") || | |
| ctxInfo.hasExtension("GL_ARB_texture_compression_rgtc"); | |
| } | |
| if (hasLATC) { | |
| alias = kRGTC_LATCAlias; | |
| } | |
| } | |
| // Check for 3DC | |
| if (!hasLATC) { | |
| hasLATC = ctxInfo.hasExtension("GL_AMD_compressed_3DC_texture"); | |
| if (hasLATC) { | |
| alias = k3DC_LATCAlias; | |
| } | |
| } | |
| fConfigTextureSupport[kLATC_GrPixelConfig] = hasLATC; | |
| fLATCAlias = alias; | |
| // Check for R11_EAC ... We don't support R11_EAC on desktop, as most | |
| // cards default to decompressing the textures in the driver, and is | |
| // generally slower. | |
| if (kGL_GrGLStandard != standard) { | |
| fConfigTextureSupport[kR11_EAC_GrPixelConfig] = version >= GR_GL_VER(3, 0); | |
| } | |
| // Check for ASTC | |
| fConfigTextureSupport[kASTC_12x12_GrPixelConfig] = | |
| ctxInfo.hasExtension("GL_KHR_texture_compression_astc_hdr") || | |
| ctxInfo.hasExtension("GL_KHR_texture_compression_astc_ldr") || | |
| ctxInfo.hasExtension("GL_OES_texture_compression_astc"); | |
| // Check for floating point texture support | |
| // NOTE: We disallow floating point textures on ES devices if linear | |
| // filtering modes are not supported. This is for simplicity, but a more | |
| // granular approach is possible. Coincidentally, floating point textures became part of | |
| // the standard in ES3.1 / OGL 3.1, hence the shorthand | |
| bool hasFPTextures = version >= GR_GL_VER(3, 1); | |
| if (!hasFPTextures) { | |
| hasFPTextures = ctxInfo.hasExtension("GL_ARB_texture_float") || | |
| (ctxInfo.hasExtension("GL_OES_texture_float_linear") && | |
| ctxInfo.hasExtension("GL_OES_texture_float")); | |
| } | |
| fConfigTextureSupport[kRGBA_float_GrPixelConfig] = hasFPTextures; | |
| // Check for fp16 texture support | |
| // NOTE: We disallow floating point textures on ES devices if linear | |
| // filtering modes are not supported. This is for simplicity, but a more | |
| // granular approach is possible. Coincidentally, 16-bit floating point textures became part of | |
| // the standard in ES3.1 / OGL 3.1, hence the shorthand | |
| bool hasHalfFPTextures = version >= GR_GL_VER(3, 1); | |
| if (!hasHalfFPTextures) { | |
| hasHalfFPTextures = ctxInfo.hasExtension("GL_ARB_texture_float") || | |
| (ctxInfo.hasExtension("GL_OES_texture_half_float_linear") && | |
| ctxInfo.hasExtension("GL_OES_texture_half_float")); | |
| } | |
| fConfigTextureSupport[kAlpha_half_GrPixelConfig] = hasHalfFPTextures; | |
| } | |
| bool GrGLCaps::doReadPixelsSupported(const GrGLInterface* intf, | |
| GrGLenum format, | |
| GrGLenum type) const { | |
| if (GR_GL_RGBA == format && GR_GL_UNSIGNED_BYTE == type) { | |
| // ES 2 guarantees this format is supported | |
| return true; | |
| } | |
| if (!fTwoFormatLimit) { | |
| // not limited by ES 2's constraints | |
| return true; | |
| } | |
| GrGLint otherFormat = GR_GL_RGBA; | |
| GrGLint otherType = GR_GL_UNSIGNED_BYTE; | |
| // The other supported format/type combo supported for ReadPixels | |
| // can change based on which render target is bound | |
| GR_GL_GetIntegerv(intf, | |
| GR_GL_IMPLEMENTATION_COLOR_READ_FORMAT, | |
| &otherFormat); | |
| GR_GL_GetIntegerv(intf, | |
| GR_GL_IMPLEMENTATION_COLOR_READ_TYPE, | |
| &otherType); | |
| return (GrGLenum)otherFormat == format && (GrGLenum)otherType == type; | |
| } | |
| bool GrGLCaps::readPixelsSupported(const GrGLInterface* intf, | |
| GrGLenum format, | |
| GrGLenum type, | |
| GrGLenum currFboFormat) const { | |
| ReadPixelsSupportedFormats::Key key = {format, type, currFboFormat}; | |
| ReadPixelsSupportedFormats* cachedValue = fReadPixelsSupportedCache.find(key); | |
| if (NULL == cachedValue) { | |
| bool value = doReadPixelsSupported(intf, format, type); | |
| ReadPixelsSupportedFormats newValue(key, value); | |
| fReadPixelsSupportedCache.add(newValue); | |
| return newValue.value(); | |
| } | |
| return cachedValue->value(); | |
| } | |
| void GrGLCaps::initFSAASupport(const GrGLContextInfo& ctxInfo, const GrGLInterface* gli) { | |
| fMSFBOType = kNone_MSFBOType; | |
| if (kGL_GrGLStandard != ctxInfo.standard()) { | |
| // We prefer the EXT/IMG extension over ES3 MSAA because we've observed | |
| // ES3 driver bugs on at least one device with a tiled GPU (N10). | |
| if (ctxInfo.hasExtension("GL_EXT_multisampled_render_to_texture")) { | |
| fMSFBOType = kES_EXT_MsToTexture_MSFBOType; | |
| } else if (ctxInfo.hasExtension("GL_IMG_multisampled_render_to_texture")) { | |
| fMSFBOType = kES_IMG_MsToTexture_MSFBOType; | |
| } else if (ctxInfo.version() >= GR_GL_VER(3,0)) { | |
| fMSFBOType = GrGLCaps::kES_3_0_MSFBOType; | |
| } else if (ctxInfo.hasExtension("GL_CHROMIUM_framebuffer_multisample")) { | |
| // chrome's extension is equivalent to the EXT msaa | |
| // and fbo_blit extensions. | |
| fMSFBOType = kDesktop_EXT_MSFBOType; | |
| } else if (ctxInfo.hasExtension("GL_APPLE_framebuffer_multisample")) { | |
| fMSFBOType = kES_Apple_MSFBOType; | |
| } | |
| } else { | |
| if ((ctxInfo.version() >= GR_GL_VER(3,0)) || | |
| ctxInfo.hasExtension("GL_ARB_framebuffer_object")) { | |
| fMSFBOType = GrGLCaps::kDesktop_ARB_MSFBOType; | |
| } else if (ctxInfo.hasExtension("GL_EXT_framebuffer_multisample") && | |
| ctxInfo.hasExtension("GL_EXT_framebuffer_blit")) { | |
| fMSFBOType = GrGLCaps::kDesktop_EXT_MSFBOType; | |
| } | |
| } | |
| } | |
| namespace { | |
| const GrGLuint kUnknownBitCount = GrGLStencilBuffer::kUnknownBitCount; | |
| } | |
| void GrGLCaps::initStencilFormats(const GrGLContextInfo& ctxInfo) { | |
| // Build up list of legal stencil formats (though perhaps not supported on | |
| // the particular gpu/driver) from most preferred to least. | |
| // these consts are in order of most preferred to least preferred | |
| // we don't bother with GL_STENCIL_INDEX1 or GL_DEPTH32F_STENCIL8 | |
| static const StencilFormat | |
| // internal Format stencil bits total bits packed? | |
| gS8 = {GR_GL_STENCIL_INDEX8, 8, 8, false}, | |
| gS16 = {GR_GL_STENCIL_INDEX16, 16, 16, false}, | |
| gD24S8 = {GR_GL_DEPTH24_STENCIL8, 8, 32, true }, | |
| gS4 = {GR_GL_STENCIL_INDEX4, 4, 4, false}, | |
| // gS = {GR_GL_STENCIL_INDEX, kUnknownBitCount, kUnknownBitCount, false}, | |
| gDS = {GR_GL_DEPTH_STENCIL, kUnknownBitCount, kUnknownBitCount, true }; | |
| if (kGL_GrGLStandard == ctxInfo.standard()) { | |
| bool supportsPackedDS = | |
| ctxInfo.version() >= GR_GL_VER(3,0) || | |
| ctxInfo.hasExtension("GL_EXT_packed_depth_stencil") || | |
| ctxInfo.hasExtension("GL_ARB_framebuffer_object"); | |
| // S1 thru S16 formats are in GL 3.0+, EXT_FBO, and ARB_FBO since we | |
| // require FBO support we can expect these are legal formats and don't | |
| // check. These also all support the unsized GL_STENCIL_INDEX. | |
| fStencilFormats.push_back() = gS8; | |
| fStencilFormats.push_back() = gS16; | |
| if (supportsPackedDS) { | |
| fStencilFormats.push_back() = gD24S8; | |
| } | |
| fStencilFormats.push_back() = gS4; | |
| if (supportsPackedDS) { | |
| fStencilFormats.push_back() = gDS; | |
| } | |
| } else { | |
| // ES2 has STENCIL_INDEX8 without extensions but requires extensions | |
| // for other formats. | |
| // ES doesn't support using the unsized format. | |
| fStencilFormats.push_back() = gS8; | |
| //fStencilFormats.push_back() = gS16; | |
| if (ctxInfo.version() >= GR_GL_VER(3,0) || | |
| ctxInfo.hasExtension("GL_OES_packed_depth_stencil")) { | |
| fStencilFormats.push_back() = gD24S8; | |
| } | |
| if (ctxInfo.hasExtension("GL_OES_stencil4")) { | |
| fStencilFormats.push_back() = gS4; | |
| } | |
| } | |
| SkASSERT(0 == fStencilVerifiedColorConfigs.count()); | |
| fStencilVerifiedColorConfigs.push_back_n(fStencilFormats.count()); | |
| } | |
| static GrGLenum precision_to_gl_float_type(GrSLPrecision p) { | |
| switch (p) { | |
| case kLow_GrSLPrecision: | |
| return GR_GL_LOW_FLOAT; | |
| case kMedium_GrSLPrecision: | |
| return GR_GL_MEDIUM_FLOAT; | |
| case kHigh_GrSLPrecision: | |
| return GR_GL_HIGH_FLOAT; | |
| } | |
| SkFAIL("Unknown precision."); | |
| return -1; | |
| } | |
| static GrGLenum shader_type_to_gl_shader(GrShaderType type) { | |
| switch (type) { | |
| case kVertex_GrShaderType: | |
| return GR_GL_VERTEX_SHADER; | |
| case kGeometry_GrShaderType: | |
| return GR_GL_GEOMETRY_SHADER; | |
| case kFragment_GrShaderType: | |
| return GR_GL_FRAGMENT_SHADER; | |
| } | |
| SkFAIL("Unknown shader type."); | |
| return -1; | |
| } | |
| void GrGLCaps::initShaderPrecisionTable(const GrGLContextInfo& ctxInfo, const GrGLInterface* intf) { | |
| if (kGLES_GrGLStandard == ctxInfo.standard() || ctxInfo.version() >= GR_GL_VER(4,1) || | |
| ctxInfo.hasExtension("GL_ARB_ES2_compatibility")) { | |
| for (int s = 0; s < kGrShaderTypeCount; ++s) { | |
| if (kGeometry_GrShaderType != s) { | |
| GrShaderType shaderType = static_cast<GrShaderType>(s); | |
| GrGLenum glShader = shader_type_to_gl_shader(shaderType); | |
| PrecisionInfo* first = NULL; | |
| fShaderPrecisionVaries = false; | |
| for (int p = 0; p < kGrSLPrecisionCount; ++p) { | |
| GrSLPrecision precision = static_cast<GrSLPrecision>(p); | |
| GrGLenum glPrecision = precision_to_gl_float_type(precision); | |
| GrGLint range[2]; | |
| GrGLint bits; | |
| GR_GL_GetShaderPrecisionFormat(intf, glShader, glPrecision, range, &bits); | |
| if (bits) { | |
| fFloatPrecisions[s][p].fLogRangeLow = range[0]; | |
| fFloatPrecisions[s][p].fLogRangeHigh = range[1]; | |
| fFloatPrecisions[s][p].fBits = bits; | |
| if (!first) { | |
| first = &fFloatPrecisions[s][p]; | |
| } else if (!fShaderPrecisionVaries) { | |
| fShaderPrecisionVaries = (*first != fFloatPrecisions[s][p]); | |
| } | |
| } | |
| } | |
| } | |
| } | |
| } else { | |
| // We're on a desktop GL that doesn't have precision info. Assume they're all 32bit float. | |
| fShaderPrecisionVaries = false; | |
| for (int s = 0; s < kGrShaderTypeCount; ++s) { | |
| if (kGeometry_GrShaderType != s) { | |
| for (int p = 0; p < kGrSLPrecisionCount; ++p) { | |
| fFloatPrecisions[s][p].fLogRangeLow = 127; | |
| fFloatPrecisions[s][p].fLogRangeHigh = 127; | |
| fFloatPrecisions[s][p].fBits = 23; | |
| } | |
| } | |
| } | |
| } | |
| // GetShaderPrecisionFormat doesn't accept GL_GEOMETRY_SHADER as a shader type. Assume they're | |
| // the same as the vertex shader. Only fragment shaders were ever allowed to omit support for | |
| // highp. GS was added after GetShaderPrecisionFormat was added to the list of features that | |
| // are recommended against. | |
| if (fGeometryShaderSupport) { | |
| for (int p = 0; p < kGrSLPrecisionCount; ++p) { | |
| fFloatPrecisions[kGeometry_GrShaderType][p] = fFloatPrecisions[kVertex_GrShaderType][p]; | |
| } | |
| } | |
| } | |
| void GrGLCaps::markColorConfigAndStencilFormatAsVerified( | |
| GrPixelConfig config, | |
| const GrGLStencilBuffer::Format& format) { | |
| #if !GR_GL_CHECK_FBO_STATUS_ONCE_PER_FORMAT | |
| return; | |
| #endif | |
| SkASSERT((unsigned)config < (unsigned)kGrPixelConfigCnt); | |
| SkASSERT(fStencilFormats.count() == fStencilVerifiedColorConfigs.count()); | |
| int count = fStencilFormats.count(); | |
| // we expect a really small number of possible formats so linear search | |
| // should be OK | |
| SkASSERT(count < 16); | |
| for (int i = 0; i < count; ++i) { | |
| if (format.fInternalFormat == | |
| fStencilFormats[i].fInternalFormat) { | |
| fStencilVerifiedColorConfigs[i].markVerified(config); | |
| return; | |
| } | |
| } | |
| SkFAIL("Why are we seeing a stencil format that " | |
| "GrGLCaps doesn't know about."); | |
| } | |
| bool GrGLCaps::isColorConfigAndStencilFormatVerified( | |
| GrPixelConfig config, | |
| const GrGLStencilBuffer::Format& format) const { | |
| #if !GR_GL_CHECK_FBO_STATUS_ONCE_PER_FORMAT | |
| return false; | |
| #endif | |
| SkASSERT((unsigned)config < (unsigned)kGrPixelConfigCnt); | |
| int count = fStencilFormats.count(); | |
| // we expect a really small number of possible formats so linear search | |
| // should be OK | |
| SkASSERT(count < 16); | |
| for (int i = 0; i < count; ++i) { | |
| if (format.fInternalFormat == | |
| fStencilFormats[i].fInternalFormat) { | |
| return fStencilVerifiedColorConfigs[i].isVerified(config); | |
| } | |
| } | |
| SkFAIL("Why are we seeing a stencil format that " | |
| "GLCaps doesn't know about."); | |
| return false; | |
| } | |
| SkString GrGLCaps::dump() const { | |
| SkString r = INHERITED::dump(); | |
| r.appendf("--- GL-Specific ---\n"); | |
| for (int i = 0; i < fStencilFormats.count(); ++i) { | |
| r.appendf("Stencil Format %d, stencil bits: %02d, total bits: %02d\n", | |
| i, | |
| fStencilFormats[i].fStencilBits, | |
| fStencilFormats[i].fTotalBits); | |
| } | |
| static const char* kMSFBOExtStr[] = { | |
| "None", | |
| "ARB", | |
| "EXT", | |
| "ES 3.0", | |
| "Apple", | |
| "IMG MS To Texture", | |
| "EXT MS To Texture", | |
| }; | |
| GR_STATIC_ASSERT(0 == kNone_MSFBOType); | |
| GR_STATIC_ASSERT(1 == kDesktop_ARB_MSFBOType); | |
| GR_STATIC_ASSERT(2 == kDesktop_EXT_MSFBOType); | |
| GR_STATIC_ASSERT(3 == kES_3_0_MSFBOType); | |
| GR_STATIC_ASSERT(4 == kES_Apple_MSFBOType); | |
| GR_STATIC_ASSERT(5 == kES_IMG_MsToTexture_MSFBOType); | |
| GR_STATIC_ASSERT(6 == kES_EXT_MsToTexture_MSFBOType); | |
| GR_STATIC_ASSERT(SK_ARRAY_COUNT(kMSFBOExtStr) == kLast_MSFBOType + 1); | |
| static const char* kInvalidateFBTypeStr[] = { | |
| "None", | |
| "Discard", | |
| "Invalidate", | |
| }; | |
| GR_STATIC_ASSERT(0 == kNone_InvalidateFBType); | |
| GR_STATIC_ASSERT(1 == kDiscard_InvalidateFBType); | |
| GR_STATIC_ASSERT(2 == kInvalidate_InvalidateFBType); | |
| GR_STATIC_ASSERT(SK_ARRAY_COUNT(kInvalidateFBTypeStr) == kLast_InvalidateFBType + 1); | |
| static const char* kMapBufferTypeStr[] = { | |
| "None", | |
| "MapBuffer", | |
| "MapBufferRange", | |
| "Chromium", | |
| }; | |
| GR_STATIC_ASSERT(0 == kNone_MapBufferType); | |
| GR_STATIC_ASSERT(1 == kMapBuffer_MapBufferType); | |
| GR_STATIC_ASSERT(2 == kMapBufferRange_MapBufferType); | |
| GR_STATIC_ASSERT(3 == kChromium_MapBufferType); | |
| GR_STATIC_ASSERT(SK_ARRAY_COUNT(kMapBufferTypeStr) == kLast_MapBufferType + 1); | |
| r.appendf("Core Profile: %s\n", (fIsCoreProfile ? "YES" : "NO")); | |
| r.appendf("MSAA Type: %s\n", kMSFBOExtStr[fMSFBOType]); | |
| r.appendf("FB Fetch Support: %s\n", (fFBFetchSupport ? "YES" : "NO")); | |
| r.appendf("Invalidate FB Type: %s\n", kInvalidateFBTypeStr[fInvalidateFBType]); | |
| r.appendf("Map Buffer Type: %s\n", kMapBufferTypeStr[fMapBufferType]); | |
| r.appendf("Max FS Uniform Vectors: %d\n", fMaxFragmentUniformVectors); | |
| r.appendf("Max FS Texture Units: %d\n", fMaxFragmentTextureUnits); | |
| if (!fIsCoreProfile) { | |
| r.appendf("Max Fixed Function Texture Coords: %d\n", fMaxFixedFunctionTextureCoords); | |
| } | |
| r.appendf("Max Vertex Attributes: %d\n", fMaxVertexAttributes); | |
| r.appendf("Support RGBA8 Render Buffer: %s\n", (fRGBA8RenderbufferSupport ? "YES": "NO")); | |
| r.appendf("BGRA is an internal format: %s\n", (fBGRAIsInternalFormat ? "YES": "NO")); | |
| r.appendf("Support texture swizzle: %s\n", (fTextureSwizzleSupport ? "YES": "NO")); | |
| r.appendf("Unpack Row length support: %s\n", (fUnpackRowLengthSupport ? "YES": "NO")); | |
| r.appendf("Unpack Flip Y support: %s\n", (fUnpackFlipYSupport ? "YES": "NO")); | |
| r.appendf("Pack Row length support: %s\n", (fPackRowLengthSupport ? "YES": "NO")); | |
| r.appendf("Pack Flip Y support: %s\n", (fPackFlipYSupport ? "YES": "NO")); | |
| r.appendf("Texture Usage support: %s\n", (fTextureUsageSupport ? "YES": "NO")); | |
| r.appendf("Texture Storage support: %s\n", (fTexStorageSupport ? "YES": "NO")); | |
| r.appendf("GL_R support: %s\n", (fTextureRedSupport ? "YES": "NO")); | |
| r.appendf("GL_ARB_imaging support: %s\n", (fImagingSupport ? "YES": "NO")); | |
| r.appendf("Two Format Limit: %s\n", (fTwoFormatLimit ? "YES": "NO")); | |
| r.appendf("Fragment coord conventions support: %s\n", | |
| (fFragCoordsConventionSupport ? "YES": "NO")); | |
| r.appendf("Vertex array object support: %s\n", (fVertexArrayObjectSupport ? "YES": "NO")); | |
| r.appendf("Use non-VBO for dynamic data: %s\n", | |
| (fUseNonVBOVertexAndIndexDynamicData ? "YES" : "NO")); | |
| r.appendf("Full screen clear is free: %s\n", (fFullClearIsFree ? "YES" : "NO")); | |
| r.appendf("Drops tile on zero divide: %s\n", (fDropsTileOnZeroDivide ? "YES" : "NO")); | |
| return r; | |
| } |