ShaderPDXferProcessor Class Reference

Inheritance diagram for ShaderPDXferProcessor:

Public Member Functions
	ShaderPDXferProcessor (SkBlendMode xfermode, GrProcessorAnalysisCoverage coverage)
const char *	name () const override
std::unique_ptr< ProgramImpl >	makeProgramImpl () const override
Public Member Functions inherited from GrXferProcessor
void	addToKey (const GrShaderCaps &, skgpu::KeyBuilder *, const GrSurfaceOrigin *originIfDstTexture, bool usesInputAttachmentForDstRead) const
virtual GrXferBarrierType	xferBarrierType (const GrCaps &caps) const
skgpu::BlendInfo	getBlendInfo () const
bool	willReadDstColor () const
bool	hasSecondaryOutput () const
bool	isLCD () const
bool	isEqual (const GrXferProcessor &that) const
Public Member Functions inherited from GrProcessor
virtual	~GrProcessor ()=default
void *	operator new (size_t size)
void *	operator new (size_t object_size, size_t footer_size)
void	operator delete (void *target)
void *	operator new (size_t size, void *placement)
void	operator delete (void *target, void *placement)
template<typename T >
const T &	cast () const
ClassID	classID () const
Public Member Functions inherited from GrNonAtomicRef< GrXferProcessor >
	GrNonAtomicRef ()
bool	unique () const
int	refCnt () const
void	ref () const
void	unref () const
Public Member Functions inherited from SkNoncopyable
	SkNoncopyable ()=default
	SkNoncopyable (SkNoncopyable &&)=default
SkNoncopyable &	operator= (SkNoncopyable &&)=default

Private Member Functions
void	onAddToKey (const GrShaderCaps &, skgpu::KeyBuilder *) const override
bool	onIsEqual (const GrXferProcessor &xpBase) const override

Additional Inherited Members
Public Types inherited from GrProcessor
enum	ClassID {   kNull_ClassID , kAttributeTestProcessor_ClassID , kBigKeyProcessor_ClassID , kBlendFragmentProcessor_ClassID ,   kBlockInputFragmentProcessor_ClassID , kButtCapStrokedCircleGeometryProcessor_ClassID , kCircleGeometryProcessor_ClassID , kCircularRRectEffect_ClassID ,   kClockwiseTestProcessor_ClassID , kColorTableEffect_ClassID , kCoverageSetOpXP_ClassID , kCustomXP_ClassID ,   kDashingCircleEffect_ClassID , kDashingLineEffect_ClassID , kDefaultGeoProc_ClassID , kDeviceSpace_ClassID ,   kDIEllipseGeometryProcessor_ClassID , kDisableColorXP_ClassID , kDrawAtlasPathShader_ClassID , kEllipseGeometryProcessor_ClassID ,   kEllipticalRRectEffect_ClassID , kFwidthSquircleTestProcessor_ClassID , kGP_ClassID , kGrBicubicEffect_ClassID ,   kGrBitmapTextGeoProc_ClassID , kGrColorSpaceXformEffect_ClassID , kGrConicEffect_ClassID , kGrConvexPolyEffect_ClassID ,   kGrDiffuseLightingEffect_ClassID , kGrDisplacementMapEffect_ClassID , kGrDistanceFieldA8TextGeoProc_ClassID , kGrDistanceFieldLCDTextGeoProc_ClassID ,   kGrDistanceFieldPathGeoProc_ClassID , kGrFillRRectOp_Processor_ClassID , kGrGaussianConvolutionFragmentProcessor_ClassID , kGrMatrixConvolutionEffect_ClassID ,   kGrMatrixEffect_ClassID , kGrMeshTestProcessor_ClassID , kGrMorphologyEffect_ClassID , kGrPerlinNoise2Effect_ClassID ,   kGrPipelineDynamicStateTestProcessor_ClassID , kGrQuadEffect_ClassID , kGrRRectShadowGeoProc_ClassID , kGrSkSLFP_ClassID ,   kGrSpecularLightingEffect_ClassID , kGrTextureEffect_ClassID , kGrUnrolledBinaryGradientColorizer_ClassID , kGrYUVtoRGBEffect_ClassID ,   kHighPrecisionFragmentProcessor_ClassID , kLatticeGP_ClassID , kPDLCDXferProcessor_ClassID , kPorterDuffXferProcessor_ClassID ,   kPremulFragmentProcessor_ClassID , kQuadEdgeEffect_ClassID , kQuadPerEdgeAAGeometryProcessor_ClassID , kSeriesFragmentProcessor_ClassID ,   kShaderPDXferProcessor_ClassID , kSurfaceColorProcessor_ClassID , kSwizzleFragmentProcessor_ClassID , kTessellate_BoundingBoxShader_ClassID ,   kTessellate_GrModulateAtlasCoverageEffect_ClassID , kTessellate_GrStrokeTessellationShader_ClassID , kTessellate_HullShader_ClassID , kTessellate_MiddleOutShader_ClassID ,   kTessellate_SimpleTriangleShader_ClassID , kTessellationTestTriShader_ClassID , kTestFP_ClassID , kTestRectOp_ClassID ,   kVertexColorSpaceBenchGP_ClassID , kVerticesGP_ClassID }
Protected Member Functions inherited from GrXferProcessor
	GrXferProcessor (ClassID classID)
	GrXferProcessor (ClassID classID, bool willReadDstColor, GrProcessorAnalysisCoverage)
Protected Member Functions inherited from GrProcessor
	GrProcessor (ClassID classID)
	GrProcessor (const GrProcessor &)=delete
GrProcessor &	operator= (const GrProcessor &)=delete
Protected Attributes inherited from GrProcessor
const ClassID	fClassID

Detailed Description

Definition at line 139 of file GrPorterDuffXferProcessor.cpp.

Constructor & Destructor Documentation

ShaderPDXferProcessor()

ShaderPDXferProcessor::ShaderPDXferProcessor ( SkBlendMode  xfermode, GrProcessorAnalysisCoverage  coverage  )

inline

Definition at line 141 of file GrPorterDuffXferProcessor.cpp.

            : INHERITED(kShaderPDXferProcessor_ClassID, /*willReadDstColor=*/true, coverage)
            , fXfermode(xfermode) {
    }

Member Function Documentation

makeProgramImpl()

std::unique_ptr< GrXferProcessor::ProgramImpl > ShaderPDXferProcessor::makeProgramImpl ( ) const

overridevirtual

Returns a new instance of the appropriate GL implementation class for the given GrXferProcessor; caller is responsible for deleting the object.

Implements GrXferProcessor.

Definition at line 170 of file GrPorterDuffXferProcessor.cpp.

                                                                                       {
    class Impl : public ProgramImpl {
    private:
        void emitBlendCodeForDstRead(GrGLSLXPFragmentBuilder* fragBuilder,
                                     GrGLSLUniformHandler* uniformHandler,
                                     const char* srcColor,
                                     const char* srcCoverage,
                                     const char* dstColor,
                                     const char* outColor,
                                     const char* outColorSecondary,
                                     const GrXferProcessor& proc) override {
            const ShaderPDXferProcessor& xp = proc.cast<ShaderPDXferProcessor>();
 
            std::string blendExpr = GrGLSLBlend::BlendExpression(
                    &xp, uniformHandler, &fBlendUniform, srcColor, dstColor, xp.fXfermode);
            fragBuilder->codeAppendf("%s = %s;", outColor, blendExpr.c_str());
 
            // Apply coverage.
            DefaultCoverageModulation(fragBuilder,
                                      srcCoverage,
                                      dstColor,
                                      outColor,
                                      outColorSecondary,
                                      xp);
        }
 
        void onSetData(const GrGLSLProgramDataManager& pdman,
                       const GrXferProcessor& proc) override {
            if (fBlendUniform.isValid()) {
                const ShaderPDXferProcessor& xp = proc.cast<ShaderPDXferProcessor>();
                GrGLSLBlend::SetBlendModeUniformData(pdman, fBlendUniform, xp.fXfermode);
            }
        }
 
        GrGLSLUniformHandler::UniformHandle fBlendUniform;
    };
 
    return std::make_unique<Impl>();
}

name()

const char * ShaderPDXferProcessor::name ( ) const

inlineoverridevirtual

Human-meaningful string to identify this processor; may be embedded in generated shader code and must be a legal SkSL identifier prefix.

Implements GrProcessor.

Definition at line 146 of file GrPorterDuffXferProcessor.cpp.

{ return "Porter Duff Shader"; }

onAddToKey()

void ShaderPDXferProcessor::onAddToKey ( const GrShaderCaps &  , skgpu::KeyBuilder *    ) const

overrideprivatevirtual

Adds a key on the skgpu::KeyBuilder that reflects any variety in the code that may be emitted by the xfer processor subclass.

Implements GrXferProcessor.

Definition at line 166 of file GrPorterDuffXferProcessor.cpp.

                                                                                    {
    b->add32(GrGLSLBlend::BlendKey(fXfermode));
}

onIsEqual()

bool ShaderPDXferProcessor::onIsEqual ( const GrXferProcessor &  xpBase ) const

inlineoverrideprivatevirtual

Implements GrXferProcessor.

Definition at line 153 of file GrPorterDuffXferProcessor.cpp.

                                                                 {
        const ShaderPDXferProcessor& xp = xpBase.cast<ShaderPDXferProcessor>();
        return fXfermode == xp.fXfermode;
    }

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The documentation for this class was generated from the following file:

• third_party/skia/src/gpu/ganesh/effects/GrPorterDuffXferProcessor.cpp