| /* |
| * Copyright 2012 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| |
| #ifndef GrGLCaps_DEFINED |
| #define GrGLCaps_DEFINED |
| |
| #include <functional> |
| #include "include/private/GrGLTypesPriv.h" |
| #include "include/private/SkChecksum.h" |
| #include "include/private/SkTArray.h" |
| #include "include/private/SkTHash.h" |
| #include "src/gpu/GrCaps.h" |
| #include "src/gpu/GrSwizzle.h" |
| #include "src/gpu/gl/GrGLStencilAttachment.h" |
| #include "src/gpu/gl/GrGLUtil.h" |
| |
| class GrGLContextInfo; |
| class GrGLRenderTarget; |
| |
| /** |
| * Stores some capabilities of a GL context. Most are determined by the GL |
| * version and the extensions string. It also tracks formats that have passed |
| * the FBO completeness test. |
| */ |
| class GrGLCaps : public GrCaps { |
| public: |
| typedef GrGLStencilAttachment::Format StencilFormat; |
| |
| /** |
| * The type of MSAA for FBOs supported. Different extensions have different |
| * semantics of how / when a resolve is performed. |
| */ |
| enum MSFBOType { |
| /** |
| * no support for MSAA FBOs |
| */ |
| kNone_MSFBOType = 0, |
| /** |
| * OpenGL 3.0+, OpenGL ES 3.0+, GL_ARB_framebuffer_object, |
| * GL_CHROMIUM_framebuffer_multisample, GL_ANGLE_framebuffer_multisample, |
| * or GL_EXT_framebuffer_multisample |
| */ |
| kStandard_MSFBOType, |
| /** |
| * GL_APPLE_framebuffer_multisample ES extension |
| */ |
| kES_Apple_MSFBOType, |
| /** |
| * GL_IMG_multisampled_render_to_texture. This variation does not have MSAA renderbuffers. |
| * Instead the texture is multisampled when bound to the FBO and then resolved automatically |
| * when read. It also defines an alternate value for GL_MAX_SAMPLES (which we call |
| * GR_GL_MAX_SAMPLES_IMG). |
| */ |
| kES_IMG_MsToTexture_MSFBOType, |
| /** |
| * GL_EXT_multisampled_render_to_texture. Same as the IMG one above but uses the standard |
| * GL_MAX_SAMPLES value. |
| */ |
| kES_EXT_MsToTexture_MSFBOType, |
| |
| kLast_MSFBOType = kES_EXT_MsToTexture_MSFBOType |
| }; |
| |
| enum BlitFramebufferFlags { |
| kNoSupport_BlitFramebufferFlag = 1 << 0, |
| kNoScalingOrMirroring_BlitFramebufferFlag = 1 << 1, |
| kResolveMustBeFull_BlitFrambufferFlag = 1 << 2, |
| kNoMSAADst_BlitFramebufferFlag = 1 << 3, |
| kNoFormatConversion_BlitFramebufferFlag = 1 << 4, |
| kNoFormatConversionForMSAASrc_BlitFramebufferFlag = 1 << 5, |
| kRectsMustMatchForMSAASrc_BlitFramebufferFlag = 1 << 6, |
| }; |
| |
| enum InvalidateFBType { |
| kNone_InvalidateFBType, |
| kDiscard_InvalidateFBType, //<! glDiscardFramebuffer() |
| kInvalidate_InvalidateFBType, //<! glInvalidateFramebuffer() |
| |
| kLast_InvalidateFBType = kInvalidate_InvalidateFBType |
| }; |
| |
| enum MapBufferType { |
| kNone_MapBufferType, |
| kMapBuffer_MapBufferType, // glMapBuffer() |
| kMapBufferRange_MapBufferType, // glMapBufferRange() |
| kChromium_MapBufferType, // GL_CHROMIUM_map_sub |
| |
| kLast_MapBufferType = kChromium_MapBufferType, |
| }; |
| |
| enum TransferBufferType { |
| kNone_TransferBufferType, |
| kPBO_TransferBufferType, // ARB_pixel_buffer_object |
| kChromium_TransferBufferType, // CHROMIUM_pixel_transfer_buffer_object |
| |
| kLast_TransferBufferType = kChromium_TransferBufferType, |
| }; |
| |
| /** |
| * Initializes the GrGLCaps to the set of features supported in the current |
| * OpenGL context accessible via ctxInfo. |
| */ |
| GrGLCaps(const GrContextOptions& contextOptions, const GrGLContextInfo& ctxInfo, |
| const GrGLInterface* glInterface); |
| |
| bool isFormatSRGB(const GrBackendFormat&) const override; |
| bool isFormatCompressed(const GrBackendFormat&, |
| SkImage::CompressionType* compressionType = nullptr) const override; |
| |
| bool isFormatTexturableAndUploadable(GrColorType, const GrBackendFormat&) const override; |
| bool isFormatTexturable(const GrBackendFormat&) const override; |
| bool isFormatTexturable(GrGLFormat) const; |
| |
| bool isFormatAsColorTypeRenderable(GrColorType ct, const GrBackendFormat& format, |
| int sampleCount = 1) const override; |
| bool isFormatRenderable(const GrBackendFormat& format, int sampleCount) const override; |
| bool isFormatRenderable(GrGLFormat format, int sampleCount) const { |
| return sampleCount <= this->maxRenderTargetSampleCount(format); |
| } |
| |
| int getRenderTargetSampleCount(int requestedCount, |
| const GrBackendFormat& format) const override { |
| return this->getRenderTargetSampleCount(requestedCount, format.asGLFormat()); |
| } |
| int getRenderTargetSampleCount(int requestedCount, GrGLFormat) const; |
| |
| int maxRenderTargetSampleCount(const GrBackendFormat& format) const override { |
| return this->maxRenderTargetSampleCount(format.asGLFormat()); |
| } |
| int maxRenderTargetSampleCount(GrGLFormat) const; |
| |
| size_t bytesPerPixel(GrGLFormat) const; |
| size_t bytesPerPixel(const GrBackendFormat&) const override; |
| |
| bool isFormatCopyable(const GrBackendFormat&) const override; |
| |
| bool canFormatBeFBOColorAttachment(GrGLFormat) const; |
| |
| GrGLFormat getFormatFromColorType(GrColorType colorType) const { |
| int idx = static_cast<int>(colorType); |
| return fColorTypeToFormatTable[idx]; |
| } |
| |
| /** |
| * Gets the internal format to use with glTexImage...() and glTexStorage...(). May be sized or |
| * base depending upon the GL. Not applicable to compressed textures. |
| */ |
| GrGLenum getTexImageOrStorageInternalFormat(GrGLFormat format) const { |
| return this->getFormatInfo(format).fInternalFormatForTexImageOrStorage; |
| } |
| |
| /** |
| * Gets the external format and type to pass to glTexImage2D with nullptr to create an |
| * uninitialized texture. See getTexImageOrStorageInternalFormat() for the internal format. |
| */ |
| void getTexImageExternalFormatAndType(GrGLFormat surfaceFormat, GrGLenum* externalFormat, |
| GrGLenum* externalType) const; |
| |
| /** |
| * Given a src data color type and a color type interpretation for a texture of a given format |
| * this provides the external GL format and type to use with glTexSubImage2d. The color types |
| * should originate from supportedWritePixelsColorType(). |
| */ |
| void getTexSubImageExternalFormatAndType(GrGLFormat surfaceFormat, GrColorType surfaceColorType, |
| GrColorType memoryColorType, GrGLenum* externalFormat, |
| GrGLenum* externalType) const; |
| |
| /** |
| * Gets the external format, type, and bytes per pixel to use when uploading zeros via |
| * glTexSubImage...() to clear the texture at creation. |
| */ |
| void getTexSubImageZeroFormatTypeAndBpp(GrGLFormat format, GrGLenum* externalFormat, |
| GrGLenum* externalType, size_t* bpp) const; |
| |
| void getReadPixelsFormat(GrGLFormat surfaceFormat, GrColorType surfaceColorType, |
| GrColorType memoryColorType, GrGLenum* externalFormat, |
| GrGLenum* externalType) const; |
| |
| /** |
| * Gets an array of legal stencil formats. These formats are not guaranteed |
| * to be supported by the driver but are legal GLenum names given the GL |
| * version and extensions supported. |
| */ |
| const SkTArray<StencilFormat, true>& stencilFormats() const { |
| return fStencilFormats; |
| } |
| |
| bool formatSupportsTexStorage(GrGLFormat) const; |
| |
| /** |
| * Gets the internal format to use with glRenderbufferStorageMultisample...(). May be sized or |
| * base depending upon the GL. Not applicable to compressed textures. |
| */ |
| GrGLenum getRenderbufferInternalFormat(GrGLFormat format) const { |
| return this->getFormatInfo(format).fInternalFormatForRenderbuffer; |
| } |
| |
| /** |
| * Gets the default external type to use with glTex[Sub]Image... when the data pointer is null. |
| */ |
| GrGLenum getFormatDefaultExternalType(GrGLFormat format) const { |
| return this->getFormatInfo(format).fDefaultExternalType; |
| } |
| |
| /** |
| * Has a stencil format index been found for the format (or we've found that no format works). |
| */ |
| bool hasStencilFormatBeenDeterminedForFormat(GrGLFormat format) const { |
| return this->getFormatInfo(format).fStencilFormatIndex != FormatInfo::kUnknown_StencilIndex; |
| } |
| |
| /** |
| * Gets the stencil format index for the format. This assumes |
| * hasStencilFormatBeenDeterminedForFormat has already been checked. Returns a value < 0 if |
| * no stencil format is supported with the format. Otherwise, returned index refers to the array |
| * returned by stencilFormats(). |
| */ |
| int getStencilFormatIndexForFormat(GrGLFormat format) const { |
| SkASSERT(this->hasStencilFormatBeenDeterminedForFormat(format)); |
| return this->getFormatInfo(format).fStencilFormatIndex; |
| } |
| |
| /** |
| * If index is >= 0 this records an index into stencilFormats() as the best stencil format for |
| * the format. If < 0 it records that the format has no supported stencil format index. |
| */ |
| void setStencilFormatIndexForFormat(GrGLFormat, int index); |
| |
| /** |
| * Reports the type of MSAA FBO support. |
| */ |
| MSFBOType msFBOType() const { return fMSFBOType; } |
| |
| /** |
| * Does the preferred MSAA FBO extension have MSAA renderbuffers? |
| */ |
| bool usesMSAARenderBuffers() const { |
| return kNone_MSFBOType != fMSFBOType && |
| kES_IMG_MsToTexture_MSFBOType != fMSFBOType && |
| kES_EXT_MsToTexture_MSFBOType != fMSFBOType; |
| } |
| |
| /** |
| * What functionality is supported by glBlitFramebuffer. |
| */ |
| uint32_t blitFramebufferSupportFlags() const { return fBlitFramebufferFlags; } |
| |
| /** |
| * Is the MSAA FBO extension one where the texture is multisampled when bound to an FBO and |
| * then implicitly resolved when read. |
| */ |
| bool usesImplicitMSAAResolve() const { |
| return kES_IMG_MsToTexture_MSFBOType == fMSFBOType || |
| kES_EXT_MsToTexture_MSFBOType == fMSFBOType; |
| } |
| |
| InvalidateFBType invalidateFBType() const { return fInvalidateFBType; } |
| |
| /// What type of buffer mapping is supported? |
| MapBufferType mapBufferType() const { return fMapBufferType; } |
| |
| /// What type of transfer buffer is supported? |
| TransferBufferType transferBufferType() const { return fTransferBufferType; } |
| |
| /// The maximum number of fragment uniform vectors (GLES has min. 16). |
| int maxFragmentUniformVectors() const { return fMaxFragmentUniformVectors; } |
| |
| /// Is there support for GL_PACK_REVERSE_ROW_ORDER |
| bool packFlipYSupport() const { return fPackFlipYSupport; } |
| |
| /// Is there support for texture parameter GL_TEXTURE_USAGE |
| bool textureUsageSupport() const { return fTextureUsageSupport; } |
| |
| /// Is GL_ARB_IMAGING supported |
| bool imagingSupport() const { return fImagingSupport; } |
| |
| /// Is there support for Vertex Array Objects? |
| bool vertexArrayObjectSupport() const { return fVertexArrayObjectSupport; } |
| |
| /// Is there support for GL_KHR_debug? |
| bool debugSupport() const { return fDebugSupport; } |
| |
| /// Is there support for ES2 compatability? |
| bool ES2CompatibilitySupport() const { return fES2CompatibilitySupport; } |
| |
| /// Is there support for glDraw*Instanced? |
| bool drawInstancedSupport() const { return fDrawInstancedSupport; } |
| |
| /// Is there support for glDraw*Indirect? Note that the baseInstance fields of indirect draw |
| /// commands cannot be used unless we have base instance support. |
| bool drawIndirectSupport() const { return fDrawIndirectSupport; } |
| |
| /// Is there support for glMultiDraw*Indirect? Note that the baseInstance fields of indirect |
| /// draw commands cannot be used unless we have base instance support. |
| bool multiDrawIndirectSupport() const { return fMultiDrawIndirectSupport; } |
| |
| /// Is there support for glDrawRangeElements? |
| bool drawRangeElementsSupport() const { return fDrawRangeElementsSupport; } |
| |
| /// Are the baseInstance fields supported in indirect draw commands? |
| bool baseInstanceSupport() const { return fBaseInstanceSupport; } |
| |
| /// Use indices or vertices in CPU arrays rather than VBOs for dynamic content. |
| bool useNonVBOVertexAndIndexDynamicData() const { return fUseNonVBOVertexAndIndexDynamicData; } |
| |
| SurfaceReadPixelsSupport surfaceSupportsReadPixels(const GrSurface*) const override; |
| |
| SupportedWrite supportedWritePixelsColorType(GrColorType surfaceColorType, |
| const GrBackendFormat& surfaceFormat, |
| GrColorType srcColorType) const override; |
| |
| bool isCoreProfile() const { return fIsCoreProfile; } |
| |
| bool bindFragDataLocationSupport() const { return fBindFragDataLocationSupport; } |
| |
| bool bindUniformLocationSupport() const { return fBindUniformLocationSupport; } |
| |
| /// Are textures with GL_TEXTURE_RECTANGLE type supported. |
| bool rectangleTextureSupport() const { return fRectangleTextureSupport; } |
| |
| bool mipMapLevelAndLodControlSupport() const { return fMipMapLevelAndLodControlSupport; } |
| |
| bool doManualMipmapping() const { return fDoManualMipmapping; } |
| |
| void onDumpJSON(SkJSONWriter*) const override; |
| |
| bool rgba8888PixelsOpsAreSlow() const { return fRGBA8888PixelsOpsAreSlow; } |
| bool partialFBOReadIsSlow() const { return fPartialFBOReadIsSlow; } |
| bool rgbaToBgraReadbackConversionsAreSlow() const { |
| return fRGBAToBGRAReadbackConversionsAreSlow; |
| } |
| |
| bool useBufferDataNullHint() const { return fUseBufferDataNullHint; } |
| |
| // Certain Intel GPUs on Mac fail to clear if the glClearColor is made up of only 1s and 0s. |
| bool clearToBoundaryValuesIsBroken() const { return fClearToBoundaryValuesIsBroken; } |
| |
| /// glClearTex(Sub)Image support |
| bool clearTextureSupport() const { return fClearTextureSupport; } |
| |
| // Adreno/MSAA drops a draw on the imagefiltersbase GM if the base vertex param to |
| // glDrawArrays is nonzero. |
| // https://bugs.chromium.org/p/skia/issues/detail?id=6650 |
| bool drawArraysBaseVertexIsBroken() const { return fDrawArraysBaseVertexIsBroken; } |
| |
| // If true then we must use an intermediate surface to perform partial updates to unorm textures |
| // that have ever been bound to a FBO. |
| bool disallowTexSubImageForUnormConfigTexturesEverBoundToFBO() const { |
| return fDisallowTexSubImageForUnormConfigTexturesEverBoundToFBO; |
| } |
| |
| // Use an intermediate surface to write pixels (full or partial overwrite) to into a texture |
| // that is bound to an FBO. |
| bool useDrawInsteadOfAllRenderTargetWrites() const { |
| return fUseDrawInsteadOfAllRenderTargetWrites; |
| } |
| |
| // At least some Adreno 3xx drivers draw lines incorrectly after drawing non-lines. Toggling |
| // face culling on and off seems to resolve this. |
| bool requiresCullFaceEnableDisableWhenDrawingLinesAfterNonLines() const { |
| return fRequiresCullFaceEnableDisableWhenDrawingLinesAfterNonLines; |
| } |
| |
| // Some Adreno drivers refuse to ReadPixels from an MSAA buffer that has stencil attached. |
| bool detachStencilFromMSAABuffersBeforeReadPixels() const { |
| return fDetachStencilFromMSAABuffersBeforeReadPixels; |
| } |
| |
| // Older Android versions seem to have an issue with setting GL_TEXTURE_BASE_LEVEL or |
| // GL_TEXTURE_MAX_LEVEL for GL_TEXTURE_EXTERNAL_OES textures. |
| bool dontSetBaseOrMaxLevelForExternalTextures() const { |
| return fDontSetBaseOrMaxLevelForExternalTextures; |
| } |
| |
| // PowerVRGX6250 drops every pixel if we modify the sample mask while color writes are disabled. |
| bool neverDisableColorWrites() const { return fNeverDisableColorWrites; } |
| |
| // Returns the observed maximum number of instances the driver can handle in a single draw call |
| // without crashing, or 'pendingInstanceCount' if this workaround is not necessary. |
| // NOTE: the return value may be larger than pendingInstanceCount. |
| int maxInstancesPerDrawWithoutCrashing(int pendingInstanceCount) const { |
| return (fMaxInstancesPerDrawWithoutCrashing) |
| ? fMaxInstancesPerDrawWithoutCrashing : pendingInstanceCount; |
| } |
| |
| bool canCopyTexSubImage(GrGLFormat dstFormat, bool dstHasMSAARenderBuffer, |
| const GrTextureType* dstTypeIfTexture, |
| GrGLFormat srcFormat, bool srcHasMSAARenderBuffer, |
| const GrTextureType* srcTypeIfTexture) const; |
| bool canCopyAsBlit(GrGLFormat dstFormat, int dstSampleCnt, |
| const GrTextureType* dstTypeIfTexture, |
| GrGLFormat srcFormat, int srcSampleCnt, |
| const GrTextureType* srcTypeIfTexture, |
| const SkRect& srcBounds, bool srcBoundsExact, |
| const SkIRect& srcRect, const SkIPoint& dstPoint) const; |
| bool canCopyAsDraw(GrGLFormat dstFormat, bool srcIsTexturable) const; |
| |
| DstCopyRestrictions getDstCopyRestrictions(const GrRenderTargetProxy* src, |
| GrColorType) const override; |
| |
| bool programBinarySupport() const { return fProgramBinarySupport; } |
| bool programParameterSupport() const { return fProgramParameterSupport; } |
| |
| bool samplerObjectSupport() const { return fSamplerObjectSupport; } |
| |
| bool tiledRenderingSupport() const { return fTiledRenderingSupport; } |
| |
| bool fbFetchRequiresEnablePerSample() const { return fFBFetchRequiresEnablePerSample; } |
| |
| /* Is there support for enabling/disabling sRGB writes for sRGB-capable color buffers? */ |
| bool srgbWriteControl() const { return fSRGBWriteControl; } |
| |
| GrColorType getYUVAColorTypeFromBackendFormat(const GrBackendFormat&, |
| bool isAlphaChannel) const override; |
| |
| GrBackendFormat getBackendFormatFromCompressionType(SkImage::CompressionType) const override; |
| |
| GrSwizzle getTextureSwizzle(const GrBackendFormat&, GrColorType) const override; |
| GrSwizzle getOutputSwizzle(const GrBackendFormat&, GrColorType) const override; |
| |
| #if GR_TEST_UTILS |
| GrGLStandard standard() const { return fStandard; } |
| |
| std::vector<TestFormatColorTypeCombination> getTestingCombinations() const override; |
| #endif |
| |
| private: |
| enum ExternalFormatUsage { |
| kTexImage_ExternalFormatUsage, |
| kReadPixels_ExternalFormatUsage, |
| }; |
| void getExternalFormat(GrGLFormat surfaceFormat, GrColorType surfaceColorType, |
| GrColorType memoryColorType, ExternalFormatUsage usage, |
| GrGLenum* externalFormat, GrGLenum* externalType) const; |
| |
| void init(const GrContextOptions&, const GrGLContextInfo&, const GrGLInterface*); |
| void initGLSL(const GrGLContextInfo&, const GrGLInterface*); |
| bool hasPathRenderingSupport(const GrGLContextInfo&, const GrGLInterface*); |
| |
| struct FormatWorkarounds { |
| bool fDisableSRGBRenderWithMSAAForMacAMD = false; |
| bool fDisableRGBA16FTexStorageForCrBug1008003 = false; |
| bool fDisableBGRATextureStorageForIntelWindowsES = false; |
| bool fDisableRGB8ForMali400 = false; |
| bool fDisableLuminance16F = false; |
| bool fDontDisableTexStorageOnAndroid = false; |
| }; |
| |
| void applyDriverCorrectnessWorkarounds(const GrGLContextInfo&, const GrContextOptions&, |
| GrShaderCaps*, FormatWorkarounds*); |
| |
| void onApplyOptionsOverrides(const GrContextOptions& options) override; |
| |
| bool onIsWindowRectanglesSupportedForRT(const GrBackendRenderTarget&) const override; |
| |
| void initFSAASupport(const GrContextOptions& contextOptions, const GrGLContextInfo&, |
| const GrGLInterface*); |
| void initBlendEqationSupport(const GrGLContextInfo&); |
| void initStencilSupport(const GrGLContextInfo&); |
| // This must be called after initFSAASupport(). |
| void initFormatTable(const GrGLContextInfo&, const GrGLInterface*, const FormatWorkarounds&); |
| void setupSampleCounts(const GrGLContextInfo&, const GrGLInterface*); |
| bool onSurfaceSupportsWritePixels(const GrSurface*) const override; |
| bool onCanCopySurface(const GrSurfaceProxy* dst, const GrSurfaceProxy* src, |
| const SkIRect& srcRect, const SkIPoint& dstPoint) const override; |
| GrBackendFormat onGetDefaultBackendFormat(GrColorType, GrRenderable) const override; |
| GrPixelConfig onGetConfigFromBackendFormat(const GrBackendFormat&, GrColorType) const override; |
| bool onAreColorTypeAndFormatCompatible(GrColorType, const GrBackendFormat&) const override; |
| |
| SupportedRead onSupportedReadPixelsColorType(GrColorType, const GrBackendFormat&, |
| GrColorType) const override; |
| |
| GrGLStandard fStandard; |
| |
| SkTArray<StencilFormat, true> fStencilFormats; |
| |
| int fMaxFragmentUniformVectors; |
| |
| MSFBOType fMSFBOType; |
| InvalidateFBType fInvalidateFBType; |
| MapBufferType fMapBufferType; |
| TransferBufferType fTransferBufferType; |
| |
| bool fPackFlipYSupport : 1; |
| bool fTextureUsageSupport : 1; |
| bool fImagingSupport : 1; |
| bool fVertexArrayObjectSupport : 1; |
| bool fDebugSupport : 1; |
| bool fES2CompatibilitySupport : 1; |
| bool fDrawInstancedSupport : 1; |
| bool fDrawIndirectSupport : 1; |
| bool fDrawRangeElementsSupport : 1; |
| bool fMultiDrawIndirectSupport : 1; |
| bool fBaseInstanceSupport : 1; |
| bool fUseNonVBOVertexAndIndexDynamicData : 1; |
| bool fIsCoreProfile : 1; |
| bool fBindFragDataLocationSupport : 1; |
| bool fRGBA8888PixelsOpsAreSlow : 1; |
| bool fPartialFBOReadIsSlow : 1; |
| bool fBindUniformLocationSupport : 1; |
| bool fRectangleTextureSupport : 1; |
| bool fMipMapLevelAndLodControlSupport : 1; |
| bool fRGBAToBGRAReadbackConversionsAreSlow : 1; |
| bool fUseBufferDataNullHint : 1; |
| bool fClearTextureSupport : 1; |
| bool fProgramBinarySupport : 1; |
| bool fProgramParameterSupport : 1; |
| bool fSamplerObjectSupport : 1; |
| bool fTiledRenderingSupport : 1; |
| bool fFBFetchRequiresEnablePerSample : 1; |
| bool fSRGBWriteControl : 1; |
| |
| // Driver workarounds |
| bool fDoManualMipmapping : 1; |
| bool fClearToBoundaryValuesIsBroken : 1; |
| bool fDrawArraysBaseVertexIsBroken : 1; |
| bool fDisallowTexSubImageForUnormConfigTexturesEverBoundToFBO : 1; |
| bool fUseDrawInsteadOfAllRenderTargetWrites : 1; |
| bool fRequiresCullFaceEnableDisableWhenDrawingLinesAfterNonLines : 1; |
| bool fDetachStencilFromMSAABuffersBeforeReadPixels : 1; |
| bool fDontSetBaseOrMaxLevelForExternalTextures : 1; |
| bool fNeverDisableColorWrites : 1; |
| int fMaxInstancesPerDrawWithoutCrashing; |
| |
| uint32_t fBlitFramebufferFlags; |
| |
| struct ReadPixelsFormat { |
| ReadPixelsFormat() : fFormat(0), fType(0) {} |
| GrGLenum fFormat; |
| GrGLenum fType; |
| }; |
| |
| /** Number type of the components (with out considering number of bits.) */ |
| enum class FormatType { |
| kUnknown, |
| kNormalizedFixedPoint, |
| kFloat, |
| }; |
| |
| // ColorTypeInfo for a specific format |
| struct ColorTypeInfo { |
| GrColorType fColorType = GrColorType::kUnknown; |
| enum { |
| kUploadData_Flag = 0x1, |
| // Does Ganesh itself support rendering to this colorType & format pair. Renderability |
| // still additionally depends on if the format can be an FBO color attachment. |
| kRenderable_Flag = 0x2, |
| }; |
| uint32_t fFlags = 0; |
| |
| GrSwizzle fTextureSwizzle; |
| GrSwizzle fOutputSwizzle; |
| |
| struct ExternalIOFormats { |
| GrColorType fColorType = GrColorType::kUnknown; |
| |
| /** The external format and type are to be used when uploading/downloading data using |
| data of fColorType and uploading to a texture of a given GrGLFormat and its |
| intended GrColorType. The fExternalTexImageFormat is the format to use for TexImage |
| calls. The fExternalReadFormat is used when calling ReadPixels. If either is zero |
| that signals that either TexImage or ReadPixels is not supported for the combination |
| of format and color types. */ |
| GrGLenum fExternalType = 0; |
| GrGLenum fExternalTexImageFormat = 0; |
| GrGLenum fExternalReadFormat = 0; |
| }; |
| |
| GrGLenum externalFormat(GrColorType externalColorType, ExternalFormatUsage usage) const { |
| for (int i = 0; i < fExternalIOFormatCount; ++i) { |
| if (fExternalIOFormats[i].fColorType == externalColorType) { |
| if (usage == kTexImage_ExternalFormatUsage) { |
| return fExternalIOFormats[i].fExternalTexImageFormat; |
| } else { |
| SkASSERT(usage == kReadPixels_ExternalFormatUsage); |
| return fExternalIOFormats[i].fExternalReadFormat; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| GrGLenum externalType(GrColorType externalColorType) const { |
| for (int i = 0; i < fExternalIOFormatCount; ++i) { |
| if (fExternalIOFormats[i].fColorType == externalColorType) { |
| return fExternalIOFormats[i].fExternalType; |
| } |
| } |
| return 0; |
| } |
| |
| std::unique_ptr<ExternalIOFormats[]> fExternalIOFormats; |
| int fExternalIOFormatCount = 0; |
| }; |
| |
| struct FormatInfo { |
| uint32_t colorTypeFlags(GrColorType colorType) const { |
| for (int i = 0; i < fColorTypeInfoCount; ++i) { |
| if (fColorTypeInfos[i].fColorType == colorType) { |
| return fColorTypeInfos[i].fFlags; |
| } |
| } |
| return 0; |
| } |
| |
| GrGLenum externalFormat(GrColorType surfaceColorType, GrColorType externalColorType, |
| ExternalFormatUsage usage) const { |
| for (int i = 0; i < fColorTypeInfoCount; ++i) { |
| if (fColorTypeInfos[i].fColorType == surfaceColorType) { |
| return fColorTypeInfos[i].externalFormat(externalColorType, usage); |
| } |
| } |
| return 0; |
| } |
| |
| GrGLenum externalType(GrColorType surfaceColorType, GrColorType externalColorType) const { |
| for (int i = 0; i < fColorTypeInfoCount; ++i) { |
| if (fColorTypeInfos[i].fColorType == surfaceColorType) { |
| return fColorTypeInfos[i].externalType(externalColorType); |
| } |
| } |
| return 0; |
| } |
| |
| enum { |
| kTexturable_Flag = 0x1, |
| /** kFBOColorAttachment means that even if the format cannot be a GrRenderTarget, we can |
| still attach it to a FBO for blitting or reading pixels. */ |
| kFBOColorAttachment_Flag = 0x2, |
| kFBOColorAttachmentWithMSAA_Flag = 0x4, |
| kUseTexStorage_Flag = 0x8, |
| }; |
| uint32_t fFlags = 0; |
| |
| FormatType fFormatType = FormatType::kUnknown; |
| |
| // Not defined for uncompressed formats. Passed to glCompressedTexImage... |
| GrGLenum fCompressedInternalFormat = 0; |
| |
| // Value to uses as the "internalformat" argument to glTexImage or glTexStorage. It is |
| // initialized in coordination with the presence/absence of the kUseTexStorage flag. In |
| // other words, it is only guaranteed to be compatible with glTexImage if the flag is not |
| // set and or with glTexStorage if the flag is set. |
| GrGLenum fInternalFormatForTexImageOrStorage = 0; |
| |
| // Value to uses as the "internalformat" argument to glRenderbufferStorageMultisample... |
| GrGLenum fInternalFormatForRenderbuffer = 0; |
| |
| // Default values to use along with fInternalFormatForTexImageOrStorage for function |
| // glTexImage2D when not input providing data (passing nullptr). Not defined for compressed |
| // formats. Also used to upload zeros to initially clear a texture. |
| GrGLenum fDefaultExternalFormat = 0; |
| GrGLenum fDefaultExternalType = 0; |
| |
| // This value is only valid for regular formats. Compressed formats will be 0. |
| GrGLenum fBytesPerPixel = 0; |
| |
| enum { |
| // This indicates that a stencil format has not yet been determined for the config. |
| kUnknown_StencilIndex = -1, |
| // This indicates that there is no supported stencil format for the config. |
| kUnsupported_StencilFormatIndex = -2 |
| }; |
| |
| // Index fStencilFormats. |
| int fStencilFormatIndex = kUnknown_StencilIndex; |
| |
| SkTDArray<int> fColorSampleCounts; |
| |
| std::unique_ptr<ColorTypeInfo[]> fColorTypeInfos; |
| int fColorTypeInfoCount = 0; |
| }; |
| |
| FormatInfo fFormatTable[kGrGLFormatCount]; |
| |
| FormatInfo& getFormatInfo(GrGLFormat format) { return fFormatTable[static_cast<int>(format)]; } |
| const FormatInfo& getFormatInfo(GrGLFormat format) const { |
| return fFormatTable[static_cast<int>(format)]; |
| } |
| |
| GrGLFormat fColorTypeToFormatTable[kGrColorTypeCnt]; |
| void setColorTypeFormat(GrColorType, GrGLFormat); |
| |
| typedef GrCaps INHERITED; |
| }; |
| |
| #endif |
