src/gpu/GrDefaultGeoProcFactory.cpp - skia - Git at Google

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */

 #include "GrDefaultGeoProcFactory.h"

 #include "GrCaps.h"
 #include "SkRefCnt.h"
 #include "glsl/GrGLSLColorSpaceXformHelper.h"
 #include "glsl/GrGLSLFragmentShaderBuilder.h"
 #include "glsl/GrGLSLGeometryProcessor.h"
 #include "glsl/GrGLSLVertexGeoBuilder.h"
 #include "glsl/GrGLSLVarying.h"
 #include "glsl/GrGLSLUniformHandler.h"
 #include "glsl/GrGLSLUtil.h"

 /*
  * The default Geometry Processor simply takes position and multiplies it by the uniform view
  * matrix. It also leaves coverage untouched.  Behind the scenes, we may add per vertex color or
  * local coords.
  */

 enum GPFlag {
     kColorAttribute_GPFlag          = 0x1,
     kColorAttributeIsSkColor_GPFlag = 0x2,
     kColorAttributeIsWide_GPFlag    = 0x4,
     kLocalCoordAttribute_GPFlag     = 0x8,
     kCoverageAttribute_GPFlag       = 0x10,
     kCoverageAttributeTweak_GPFlag  = 0x20,
 };

 class DefaultGeoProc : public GrGeometryProcessor {
 public:
     static sk_sp<GrGeometryProcessor> Make(const GrShaderCaps* shaderCaps,
                                            uint32_t gpTypeFlags,
                                            const SkPMColor4f& color,
                                            sk_sp<GrColorSpaceXform> colorSpaceXform,
                                            const SkMatrix& viewMatrix,
                                            const SkMatrix& localMatrix,
                                            bool localCoordsWillBeRead,
                                            uint8_t coverage) {
         return sk_sp<GrGeometryProcessor>(new DefaultGeoProc(
                 shaderCaps, gpTypeFlags, color, std::move(colorSpaceXform), viewMatrix, localMatrix,
                 coverage, localCoordsWillBeRead));
     }

     const char* name() const override { return "DefaultGeometryProcessor"; }

     const SkPMColor4f& color() const { return fColor; }
     bool hasVertexColor() const { return fInColor.isInitialized(); }
     const SkMatrix& viewMatrix() const { return fViewMatrix; }
     const SkMatrix& localMatrix() const { return fLocalMatrix; }
     bool localCoordsWillBeRead() const { return fLocalCoordsWillBeRead; }
     uint8_t coverage() const { return fCoverage; }
     bool hasVertexCoverage() const { return fInCoverage.isInitialized(); }

     class GLSLProcessor : public GrGLSLGeometryProcessor {
     public:
         GLSLProcessor()
             : fViewMatrix(SkMatrix::InvalidMatrix())
             , fColor(SK_PMColor4fILLEGAL)
             , fCoverage(0xff) {}

         void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override {
             const DefaultGeoProc& gp = args.fGP.cast<DefaultGeoProc>();
             GrGLSLVertexBuilder* vertBuilder = args.fVertBuilder;
             GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
             GrGLSLVaryingHandler* varyingHandler = args.fVaryingHandler;
             GrGLSLUniformHandler* uniformHandler = args.fUniformHandler;

             // emit attributes
             varyingHandler->emitAttributes(gp);

             bool tweakAlpha = SkToBool(gp.fFlags & kCoverageAttributeTweak_GPFlag);
             SkASSERT(!tweakAlpha || gp.hasVertexCoverage());

             // Setup pass through color
             if (gp.hasVertexColor() || tweakAlpha) {
                 GrGLSLVarying varying(kHalf4_GrSLType);
                 varyingHandler->addVarying("color", &varying);

                 // There are several optional steps to process the color. Start with the attribute,
                 // or with uniform color (in the case of folding coverage into a uniform color):
                 if (gp.hasVertexColor()) {
                     vertBuilder->codeAppendf("half4 color = %s;", gp.fInColor.name());
                 } else {
                     const char* colorUniformName;
                     fColorUniform = uniformHandler->addUniform(kVertex_GrShaderFlag,
                                                                kHalf4_GrSLType,
                                                                "Color",
                                                                &colorUniformName);
                     vertBuilder->codeAppendf("half4 color = %s;", colorUniformName);
                 }

                 // For SkColor, do a red/blue swap, possible color space conversion, and premul
                 if (gp.fFlags & kColorAttributeIsSkColor_GPFlag) {
                     vertBuilder->codeAppend("color = color.bgra;");

                     if (gp.fColorSpaceXform) {
                         fColorSpaceHelper.emitCode(uniformHandler, gp.fColorSpaceXform.get(),
                                                    kVertex_GrShaderFlag);
                         SkString xformedColor;
                         vertBuilder->appendColorGamutXform(&xformedColor, "color",
                                                            &fColorSpaceHelper);
                         vertBuilder->codeAppendf("color = %s;", xformedColor.c_str());
                     }

                     vertBuilder->codeAppend("color = half4(color.rgb * color.a, color.a);");
                 }

                 // Optionally fold coverage into alpha (color).
                 if (tweakAlpha) {
                     vertBuilder->codeAppendf("color = color * %s;", gp.fInCoverage.name());
                 }
                 vertBuilder->codeAppendf("%s = color;\n", varying.vsOut());
                 fragBuilder->codeAppendf("%s = %s;", args.fOutputColor, varying.fsIn());
             } else {
                 this->setupUniformColor(fragBuilder, uniformHandler, args.fOutputColor,
                                         &fColorUniform);
             }

             // Setup position
             this->writeOutputPosition(vertBuilder,
                                       uniformHandler,
                                       gpArgs,
                                       gp.fInPosition.name(),
                                       gp.viewMatrix(),
                                       &fViewMatrixUniform);

             if (gp.fInLocalCoords.isInitialized()) {
                 // emit transforms with explicit local coords
                 this->emitTransforms(vertBuilder,
                                      varyingHandler,
                                      uniformHandler,
                                      gp.fInLocalCoords.asShaderVar(),
                                      gp.localMatrix(),
                                      args.fFPCoordTransformHandler);
             } else {
                 // emit transforms with position
                 this->emitTransforms(vertBuilder,
                                      varyingHandler,
                                      uniformHandler,
                                      gp.fInPosition.asShaderVar(),
                                      gp.localMatrix(),
                                      args.fFPCoordTransformHandler);
             }

             // Setup coverage as pass through
             if (gp.hasVertexCoverage() && !tweakAlpha) {
                 fragBuilder->codeAppendf("half alpha = 1.0;");
                 varyingHandler->addPassThroughAttribute(gp.fInCoverage, "alpha");
                 fragBuilder->codeAppendf("%s = half4(alpha);", args.fOutputCoverage);
             } else if (gp.coverage() == 0xff) {
                 fragBuilder->codeAppendf("%s = half4(1);", args.fOutputCoverage);
             } else {
                 const char* fragCoverage;
                 fCoverageUniform = uniformHandler->addUniform(kFragment_GrShaderFlag,
                                                               kHalf_GrSLType,
                                                               "Coverage",
                                                               &fragCoverage);
                 fragBuilder->codeAppendf("%s = half4(%s);", args.fOutputCoverage, fragCoverage);
             }
         }

         static inline void GenKey(const GrGeometryProcessor& gp,
                                   const GrShaderCaps&,
                                   GrProcessorKeyBuilder* b) {
             const DefaultGeoProc& def = gp.cast<DefaultGeoProc>();
             uint32_t key = def.fFlags;
             key |= (def.coverage() == 0xff) ? 0x80 : 0;
             key |= (def.localCoordsWillBeRead() && def.localMatrix().hasPerspective()) ? 0x100 : 0;
             key |= ComputePosKey(def.viewMatrix()) << 20;
             b->add32(key);
             b->add32(GrColorSpaceXform::XformKey(def.fColorSpaceXform.get()));
         }

         void setData(const GrGLSLProgramDataManager& pdman,
                      const GrPrimitiveProcessor& gp,
                      FPCoordTransformIter&& transformIter) override {
             const DefaultGeoProc& dgp = gp.cast<DefaultGeoProc>();

             if (!dgp.viewMatrix().isIdentity() && !fViewMatrix.cheapEqualTo(dgp.viewMatrix())) {
                 fViewMatrix = dgp.viewMatrix();
                 float viewMatrix[3 * 3];
                 GrGLSLGetMatrix<3>(viewMatrix, fViewMatrix);
                 pdman.setMatrix3f(fViewMatrixUniform, viewMatrix);
             }

             if (!dgp.hasVertexColor() && dgp.color() != fColor) {
                 pdman.set4fv(fColorUniform, 1, dgp.color().vec());
                 fColor = dgp.color();
             }

             if (dgp.coverage() != fCoverage && !dgp.hasVertexCoverage()) {
                 pdman.set1f(fCoverageUniform, GrNormalizeByteToFloat(dgp.coverage()));
                 fCoverage = dgp.coverage();
             }
             this->setTransformDataHelper(dgp.fLocalMatrix, pdman, &transformIter);

             fColorSpaceHelper.setData(pdman, dgp.fColorSpaceXform.get());
         }

     private:
         SkMatrix fViewMatrix;
         SkPMColor4f fColor;
         uint8_t fCoverage;
         UniformHandle fViewMatrixUniform;
         UniformHandle fColorUniform;
         UniformHandle fCoverageUniform;
         GrGLSLColorSpaceXformHelper fColorSpaceHelper;

         typedef GrGLSLGeometryProcessor INHERITED;
     };

     void getGLSLProcessorKey(const GrShaderCaps& caps, GrProcessorKeyBuilder* b) const override {
         GLSLProcessor::GenKey(*this, caps, b);
     }

     GrGLSLPrimitiveProcessor* createGLSLInstance(const GrShaderCaps&) const override {
         return new GLSLProcessor();
     }

 private:
     DefaultGeoProc(const GrShaderCaps* shaderCaps,
                    uint32_t gpTypeFlags,
                    const SkPMColor4f& color,
                    sk_sp<GrColorSpaceXform> colorSpaceXform,
                    const SkMatrix& viewMatrix,
                    const SkMatrix& localMatrix,
                    uint8_t coverage,
                    bool localCoordsWillBeRead)
             : INHERITED(kDefaultGeoProc_ClassID)
             , fColor(color)
             , fViewMatrix(viewMatrix)
             , fLocalMatrix(localMatrix)
             , fCoverage(coverage)
             , fFlags(gpTypeFlags)
             , fLocalCoordsWillBeRead(localCoordsWillBeRead)
             , fColorSpaceXform(std::move(colorSpaceXform)) {
         fInPosition = {"inPosition", kFloat2_GrVertexAttribType, kFloat2_GrSLType};
         if (fFlags & kColorAttribute_GPFlag) {
             fInColor = MakeColorAttribute("inColor",
                                           SkToBool(fFlags & kColorAttributeIsWide_GPFlag));
         }
         if (fFlags & kLocalCoordAttribute_GPFlag) {
             fInLocalCoords = {"inLocalCoord", kFloat2_GrVertexAttribType,
                                               kFloat2_GrSLType};
         }
         if (fFlags & kCoverageAttribute_GPFlag) {
             fInCoverage = {"inCoverage", kFloat_GrVertexAttribType, kHalf_GrSLType};
         }
         this->setVertexAttributes(&fInPosition, 4);
     }

     Attribute fInPosition;
     Attribute fInColor;
     Attribute fInLocalCoords;
     Attribute fInCoverage;
     SkPMColor4f fColor;
     SkMatrix fViewMatrix;
     SkMatrix fLocalMatrix;
     uint8_t fCoverage;
     uint32_t fFlags;
     bool fLocalCoordsWillBeRead;
     sk_sp<GrColorSpaceXform> fColorSpaceXform;

     GR_DECLARE_GEOMETRY_PROCESSOR_TEST

     typedef GrGeometryProcessor INHERITED;
 };

 GR_DEFINE_GEOMETRY_PROCESSOR_TEST(DefaultGeoProc);

 #if GR_TEST_UTILS
 sk_sp<GrGeometryProcessor> DefaultGeoProc::TestCreate(GrProcessorTestData* d) {
     uint32_t flags = 0;
     if (d->fRandom->nextBool()) {
         flags |= kColorAttribute_GPFlag;
     }
     if (d->fRandom->nextBool()) {
         flags |= kColorAttributeIsSkColor_GPFlag;
     }
     if (d->fRandom->nextBool()) {
         flags |= kColorAttributeIsWide_GPFlag;
     }
     if (d->fRandom->nextBool()) {
         flags |= kCoverageAttribute_GPFlag;
         if (d->fRandom->nextBool()) {
             flags |= kCoverageAttributeTweak_GPFlag;
         }
     }
     if (d->fRandom->nextBool()) {
         flags |= kLocalCoordAttribute_GPFlag;
     }

     return DefaultGeoProc::Make(d->caps()->shaderCaps(),
                                 flags,
                                 SkPMColor4f::FromBytes_RGBA(GrRandomColor(d->fRandom)),
                                 GrTest::TestColorXform(d->fRandom),
                                 GrTest::TestMatrix(d->fRandom),
                                 GrTest::TestMatrix(d->fRandom),
                                 d->fRandom->nextBool(),
                                 GrRandomCoverage(d->fRandom));
 }
 #endif

 sk_sp<GrGeometryProcessor> GrDefaultGeoProcFactory::Make(const GrShaderCaps* shaderCaps,
                                                          const Color& color,
                                                          const Coverage& coverage,
                                                          const LocalCoords& localCoords,
                                                          const SkMatrix& viewMatrix) {
     uint32_t flags = 0;
     if (Color::kPremulGrColorAttribute_Type == color.fType) {
         flags |= kColorAttribute_GPFlag;
     } else if (Color::kUnpremulSkColorAttribute_Type == color.fType) {
         flags |= kColorAttribute_GPFlag | kColorAttributeIsSkColor_GPFlag;
     } else if (Color::kPremulWideColorAttribute_Type == color.fType) {
         flags |= kColorAttribute_GPFlag | kColorAttributeIsWide_GPFlag;
     }
     if (Coverage::kAttribute_Type == coverage.fType) {
         flags |= kCoverageAttribute_GPFlag;
     } else if (Coverage::kAttributeTweakAlpha_Type == coverage.fType) {
         flags |= kCoverageAttribute_GPFlag | kCoverageAttributeTweak_GPFlag;
     }
     flags |= localCoords.fType == LocalCoords::kHasExplicit_Type ? kLocalCoordAttribute_GPFlag : 0;

     uint8_t inCoverage = coverage.fCoverage;
     bool localCoordsWillBeRead = localCoords.fType != LocalCoords::kUnused_Type;

     return DefaultGeoProc::Make(shaderCaps,
                                 flags,
                                 color.fColor,
                                 color.fColorSpaceXform,
                                 viewMatrix,
                                 localCoords.fMatrix ? *localCoords.fMatrix : SkMatrix::I(),
                                 localCoordsWillBeRead,
                                 inCoverage);
 }

 sk_sp<GrGeometryProcessor> GrDefaultGeoProcFactory::MakeForDeviceSpace(
                                                                      const GrShaderCaps* shaderCaps,
                                                                      const Color& color,
                                                                      const Coverage& coverage,
                                                                      const LocalCoords& localCoords,
                                                                      const SkMatrix& viewMatrix) {
     SkMatrix invert = SkMatrix::I();
     if (LocalCoords::kUnused_Type != localCoords.fType) {
         SkASSERT(LocalCoords::kUsePosition_Type == localCoords.fType);
         if (!viewMatrix.isIdentity() && !viewMatrix.invert(&invert)) {
             return nullptr;
         }

         if (localCoords.hasLocalMatrix()) {
             invert.postConcat(*localCoords.fMatrix);
         }
     }

     LocalCoords inverted(LocalCoords::kUsePosition_Type, &invert);
     return Make(shaderCaps, color, coverage, inverted, SkMatrix::I());
 }
	/*
	* Copyright 2014 Google Inc.
	*
	* Use of this source code is governed by a BSD-style license that can be
	* found in the LICENSE file.
	*/

	#include "GrDefaultGeoProcFactory.h"

	#include "GrCaps.h"
	#include "SkRefCnt.h"
	#include "glsl/GrGLSLColorSpaceXformHelper.h"
	#include "glsl/GrGLSLFragmentShaderBuilder.h"
	#include "glsl/GrGLSLGeometryProcessor.h"
	#include "glsl/GrGLSLVertexGeoBuilder.h"
	#include "glsl/GrGLSLVarying.h"
	#include "glsl/GrGLSLUniformHandler.h"
	#include "glsl/GrGLSLUtil.h"

	/*
	* The default Geometry Processor simply takes position and multiplies it by the uniform view
	* matrix. It also leaves coverage untouched. Behind the scenes, we may add per vertex color or
	* local coords.
	*/

	enum GPFlag {
	kColorAttribute_GPFlag = 0x1,
	kColorAttributeIsSkColor_GPFlag = 0x2,
	kColorAttributeIsWide_GPFlag = 0x4,
	kLocalCoordAttribute_GPFlag = 0x8,
	kCoverageAttribute_GPFlag = 0x10,
	kCoverageAttributeTweak_GPFlag = 0x20,
	};

	class DefaultGeoProc : public GrGeometryProcessor {
	public:
	static sk_sp<GrGeometryProcessor> Make(const GrShaderCaps* shaderCaps,
	uint32_t gpTypeFlags,
	const SkPMColor4f& color,
	sk_sp<GrColorSpaceXform> colorSpaceXform,
	const SkMatrix& viewMatrix,
	const SkMatrix& localMatrix,
	bool localCoordsWillBeRead,
	uint8_t coverage) {
	return sk_sp<GrGeometryProcessor>(new DefaultGeoProc(
	shaderCaps, gpTypeFlags, color, std::move(colorSpaceXform), viewMatrix, localMatrix,
	coverage, localCoordsWillBeRead));
	}

	const char* name() const override { return "DefaultGeometryProcessor"; }

	const SkPMColor4f& color() const { return fColor; }
	bool hasVertexColor() const { return fInColor.isInitialized(); }
	const SkMatrix& viewMatrix() const { return fViewMatrix; }
	const SkMatrix& localMatrix() const { return fLocalMatrix; }
	bool localCoordsWillBeRead() const { return fLocalCoordsWillBeRead; }
	uint8_t coverage() const { return fCoverage; }
	bool hasVertexCoverage() const { return fInCoverage.isInitialized(); }

	class GLSLProcessor : public GrGLSLGeometryProcessor {
	public:
	GLSLProcessor()
	: fViewMatrix(SkMatrix::InvalidMatrix())
	, fColor(SK_PMColor4fILLEGAL)
	, fCoverage(0xff) {}

	void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override {
	const DefaultGeoProc& gp = args.fGP.cast<DefaultGeoProc>();
	GrGLSLVertexBuilder* vertBuilder = args.fVertBuilder;
	GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
	GrGLSLVaryingHandler* varyingHandler = args.fVaryingHandler;
	GrGLSLUniformHandler* uniformHandler = args.fUniformHandler;

	// emit attributes
	varyingHandler->emitAttributes(gp);

	bool tweakAlpha = SkToBool(gp.fFlags & kCoverageAttributeTweak_GPFlag);
	SkASSERT(!tweakAlpha \|\| gp.hasVertexCoverage());

	// Setup pass through color
	if (gp.hasVertexColor() \|\| tweakAlpha) {
	GrGLSLVarying varying(kHalf4_GrSLType);
	varyingHandler->addVarying("color", &varying);

	// There are several optional steps to process the color. Start with the attribute,
	// or with uniform color (in the case of folding coverage into a uniform color):
	if (gp.hasVertexColor()) {
	vertBuilder->codeAppendf("half4 color = %s;", gp.fInColor.name());
	} else {
	const char* colorUniformName;
	fColorUniform = uniformHandler->addUniform(kVertex_GrShaderFlag,
	kHalf4_GrSLType,
	"Color",
	&colorUniformName);
	vertBuilder->codeAppendf("half4 color = %s;", colorUniformName);
	}

	// For SkColor, do a red/blue swap, possible color space conversion, and premul
	if (gp.fFlags & kColorAttributeIsSkColor_GPFlag) {
	vertBuilder->codeAppend("color = color.bgra;");

	if (gp.fColorSpaceXform) {
	fColorSpaceHelper.emitCode(uniformHandler, gp.fColorSpaceXform.get(),
	kVertex_GrShaderFlag);
	SkString xformedColor;
	vertBuilder->appendColorGamutXform(&xformedColor, "color",
	&fColorSpaceHelper);
	vertBuilder->codeAppendf("color = %s;", xformedColor.c_str());
	}

	vertBuilder->codeAppend("color = half4(color.rgb * color.a, color.a);");
	}

	// Optionally fold coverage into alpha (color).
	if (tweakAlpha) {
	vertBuilder->codeAppendf("color = color * %s;", gp.fInCoverage.name());
	}
	vertBuilder->codeAppendf("%s = color;\n", varying.vsOut());
	fragBuilder->codeAppendf("%s = %s;", args.fOutputColor, varying.fsIn());
	} else {
	this->setupUniformColor(fragBuilder, uniformHandler, args.fOutputColor,
	&fColorUniform);
	}

	// Setup position
	this->writeOutputPosition(vertBuilder,
	uniformHandler,
	gpArgs,
	gp.fInPosition.name(),
	gp.viewMatrix(),
	&fViewMatrixUniform);

	if (gp.fInLocalCoords.isInitialized()) {
	// emit transforms with explicit local coords
	this->emitTransforms(vertBuilder,
	varyingHandler,
	uniformHandler,
	gp.fInLocalCoords.asShaderVar(),
	gp.localMatrix(),
	args.fFPCoordTransformHandler);
	} else {
	// emit transforms with position
	this->emitTransforms(vertBuilder,
	varyingHandler,
	uniformHandler,
	gp.fInPosition.asShaderVar(),
	gp.localMatrix(),
	args.fFPCoordTransformHandler);
	}

	// Setup coverage as pass through
	if (gp.hasVertexCoverage() && !tweakAlpha) {
	fragBuilder->codeAppendf("half alpha = 1.0;");
	varyingHandler->addPassThroughAttribute(gp.fInCoverage, "alpha");
	fragBuilder->codeAppendf("%s = half4(alpha);", args.fOutputCoverage);
	} else if (gp.coverage() == 0xff) {
	fragBuilder->codeAppendf("%s = half4(1);", args.fOutputCoverage);
	} else {
	const char* fragCoverage;
	fCoverageUniform = uniformHandler->addUniform(kFragment_GrShaderFlag,
	kHalf_GrSLType,
	"Coverage",
	&fragCoverage);
	fragBuilder->codeAppendf("%s = half4(%s);", args.fOutputCoverage, fragCoverage);
	}
	}

	static inline void GenKey(const GrGeometryProcessor& gp,
	const GrShaderCaps&,
	GrProcessorKeyBuilder* b) {
	const DefaultGeoProc& def = gp.cast<DefaultGeoProc>();
	uint32_t key = def.fFlags;
	key \|= (def.coverage() == 0xff) ? 0x80 : 0;
	key \|= (def.localCoordsWillBeRead() && def.localMatrix().hasPerspective()) ? 0x100 : 0;
	key \|= ComputePosKey(def.viewMatrix()) << 20;
	b->add32(key);
	b->add32(GrColorSpaceXform::XformKey(def.fColorSpaceXform.get()));
	}

	void setData(const GrGLSLProgramDataManager& pdman,
	const GrPrimitiveProcessor& gp,
	FPCoordTransformIter&& transformIter) override {
	const DefaultGeoProc& dgp = gp.cast<DefaultGeoProc>();

	if (!dgp.viewMatrix().isIdentity() && !fViewMatrix.cheapEqualTo(dgp.viewMatrix())) {
	fViewMatrix = dgp.viewMatrix();
	float viewMatrix[3 * 3];
	GrGLSLGetMatrix<3>(viewMatrix, fViewMatrix);
	pdman.setMatrix3f(fViewMatrixUniform, viewMatrix);
	}

	if (!dgp.hasVertexColor() && dgp.color() != fColor) {
	pdman.set4fv(fColorUniform, 1, dgp.color().vec());
	fColor = dgp.color();
	}

	if (dgp.coverage() != fCoverage && !dgp.hasVertexCoverage()) {
	pdman.set1f(fCoverageUniform, GrNormalizeByteToFloat(dgp.coverage()));
	fCoverage = dgp.coverage();
	}
	this->setTransformDataHelper(dgp.fLocalMatrix, pdman, &transformIter);

	fColorSpaceHelper.setData(pdman, dgp.fColorSpaceXform.get());
	}

	private:
	SkMatrix fViewMatrix;
	SkPMColor4f fColor;
	uint8_t fCoverage;
	UniformHandle fViewMatrixUniform;
	UniformHandle fColorUniform;
	UniformHandle fCoverageUniform;
	GrGLSLColorSpaceXformHelper fColorSpaceHelper;

	typedef GrGLSLGeometryProcessor INHERITED;
	};

	void getGLSLProcessorKey(const GrShaderCaps& caps, GrProcessorKeyBuilder* b) const override {
	GLSLProcessor::GenKey(*this, caps, b);
	}

	GrGLSLPrimitiveProcessor* createGLSLInstance(const GrShaderCaps&) const override {
	return new GLSLProcessor();
	}

	private:
	DefaultGeoProc(const GrShaderCaps* shaderCaps,
	uint32_t gpTypeFlags,
	const SkPMColor4f& color,
	sk_sp<GrColorSpaceXform> colorSpaceXform,
	const SkMatrix& viewMatrix,
	const SkMatrix& localMatrix,
	uint8_t coverage,
	bool localCoordsWillBeRead)
	: INHERITED(kDefaultGeoProc_ClassID)
	, fColor(color)
	, fViewMatrix(viewMatrix)
	, fLocalMatrix(localMatrix)
	, fCoverage(coverage)
	, fFlags(gpTypeFlags)
	, fLocalCoordsWillBeRead(localCoordsWillBeRead)
	, fColorSpaceXform(std::move(colorSpaceXform)) {
	fInPosition = {"inPosition", kFloat2_GrVertexAttribType, kFloat2_GrSLType};
	if (fFlags & kColorAttribute_GPFlag) {
	fInColor = MakeColorAttribute("inColor",
	SkToBool(fFlags & kColorAttributeIsWide_GPFlag));
	}
	if (fFlags & kLocalCoordAttribute_GPFlag) {
	fInLocalCoords = {"inLocalCoord", kFloat2_GrVertexAttribType,
	kFloat2_GrSLType};
	}
	if (fFlags & kCoverageAttribute_GPFlag) {
	fInCoverage = {"inCoverage", kFloat_GrVertexAttribType, kHalf_GrSLType};
	}
	this->setVertexAttributes(&fInPosition, 4);
	}

	Attribute fInPosition;
	Attribute fInColor;
	Attribute fInLocalCoords;
	Attribute fInCoverage;
	SkPMColor4f fColor;
	SkMatrix fViewMatrix;
	SkMatrix fLocalMatrix;
	uint8_t fCoverage;
	uint32_t fFlags;
	bool fLocalCoordsWillBeRead;
	sk_sp<GrColorSpaceXform> fColorSpaceXform;

	GR_DECLARE_GEOMETRY_PROCESSOR_TEST

	typedef GrGeometryProcessor INHERITED;
	};

	GR_DEFINE_GEOMETRY_PROCESSOR_TEST(DefaultGeoProc);

	#if GR_TEST_UTILS
	sk_sp<GrGeometryProcessor> DefaultGeoProc::TestCreate(GrProcessorTestData* d) {
	uint32_t flags = 0;
	if (d->fRandom->nextBool()) {
	flags \|= kColorAttribute_GPFlag;
	}
	if (d->fRandom->nextBool()) {
	flags \|= kColorAttributeIsSkColor_GPFlag;
	}
	if (d->fRandom->nextBool()) {
	flags \|= kColorAttributeIsWide_GPFlag;
	}
	if (d->fRandom->nextBool()) {
	flags \|= kCoverageAttribute_GPFlag;
	if (d->fRandom->nextBool()) {
	flags \|= kCoverageAttributeTweak_GPFlag;
	}
	}
	if (d->fRandom->nextBool()) {
	flags \|= kLocalCoordAttribute_GPFlag;
	}

	return DefaultGeoProc::Make(d->caps()->shaderCaps(),
	flags,
	SkPMColor4f::FromBytes_RGBA(GrRandomColor(d->fRandom)),
	GrTest::TestColorXform(d->fRandom),
	GrTest::TestMatrix(d->fRandom),
	GrTest::TestMatrix(d->fRandom),
	d->fRandom->nextBool(),
	GrRandomCoverage(d->fRandom));
	}
	#endif

	sk_sp<GrGeometryProcessor> GrDefaultGeoProcFactory::Make(const GrShaderCaps* shaderCaps,
	const Color& color,
	const Coverage& coverage,
	const LocalCoords& localCoords,
	const SkMatrix& viewMatrix) {
	uint32_t flags = 0;
	if (Color::kPremulGrColorAttribute_Type == color.fType) {
	flags \|= kColorAttribute_GPFlag;
	} else if (Color::kUnpremulSkColorAttribute_Type == color.fType) {
	flags \|= kColorAttribute_GPFlag \| kColorAttributeIsSkColor_GPFlag;
	} else if (Color::kPremulWideColorAttribute_Type == color.fType) {
	flags \|= kColorAttribute_GPFlag \| kColorAttributeIsWide_GPFlag;
	}
	if (Coverage::kAttribute_Type == coverage.fType) {
	flags \|= kCoverageAttribute_GPFlag;
	} else if (Coverage::kAttributeTweakAlpha_Type == coverage.fType) {
	flags \|= kCoverageAttribute_GPFlag \| kCoverageAttributeTweak_GPFlag;
	}
	flags \|= localCoords.fType == LocalCoords::kHasExplicit_Type ? kLocalCoordAttribute_GPFlag : 0;

	uint8_t inCoverage = coverage.fCoverage;
	bool localCoordsWillBeRead = localCoords.fType != LocalCoords::kUnused_Type;

	return DefaultGeoProc::Make(shaderCaps,
	flags,
	color.fColor,
	color.fColorSpaceXform,
	viewMatrix,
	localCoords.fMatrix ? *localCoords.fMatrix : SkMatrix::I(),
	localCoordsWillBeRead,
	inCoverage);
	}

	sk_sp<GrGeometryProcessor> GrDefaultGeoProcFactory::MakeForDeviceSpace(
	const GrShaderCaps* shaderCaps,
	const Color& color,
	const Coverage& coverage,
	const LocalCoords& localCoords,
	const SkMatrix& viewMatrix) {
	SkMatrix invert = SkMatrix::I();
	if (LocalCoords::kUnused_Type != localCoords.fType) {
	SkASSERT(LocalCoords::kUsePosition_Type == localCoords.fType);
	if (!viewMatrix.isIdentity() && !viewMatrix.invert(&invert)) {
	return nullptr;
	}

	if (localCoords.hasLocalMatrix()) {
	invert.postConcat(*localCoords.fMatrix);
	}
	}

	LocalCoords inverted(LocalCoords::kUsePosition_Type, &invert);
	return Make(shaderCaps, color, coverage, inverted, SkMatrix::I());
	}