1 /* 2 * Copyright 2014 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #ifndef GrPorterDuffXferProcessor_DEFINED 9 #define GrPorterDuffXferProcessor_DEFINED 10 11 #include "GrTypes.h" 12 #include "GrXferProcessor.h" 13 #include "SkXfermode.h" 14 15 class GrProcOptInfo; 16 17 class GrPorterDuffXPFactory : public GrXPFactory { 18 public: 19 static GrXPFactory* Create(SkXfermode::Mode mode); 20 21 bool supportsRGBCoverage(GrColor knownColor, uint32_t knownColorFlags) const override; 22 23 void getInvariantOutput(const GrProcOptInfo& colorPOI, const GrProcOptInfo& coveragePOI, 24 GrXPFactory::InvariantOutput*) const override; 25 26 private: 27 GrPorterDuffXPFactory(GrBlendCoeff src, GrBlendCoeff dst); 28 29 GrXferProcessor* onCreateXferProcessor(const GrDrawTargetCaps& caps, 30 const GrProcOptInfo& colorPOI, 31 const GrProcOptInfo& coveragePOI, 32 const GrDeviceCoordTexture* dstCopy) const override; 33 34 bool willReadDstColor(const GrDrawTargetCaps& caps, 35 const GrProcOptInfo& colorPOI, 36 const GrProcOptInfo& coveragePOI) const override; 37 38 bool onIsEqual(const GrXPFactory& xpfBase) const override { 39 const GrPorterDuffXPFactory& xpf = xpfBase.cast<GrPorterDuffXPFactory>(); 40 return (fSrcCoeff == xpf.fSrcCoeff && fDstCoeff == xpf.fDstCoeff); 41 } 42 43 GR_DECLARE_XP_FACTORY_TEST; 44 45 GrBlendCoeff fSrcCoeff; 46 GrBlendCoeff fDstCoeff; 47 48 typedef GrXPFactory INHERITED; 49 }; 50 51 #endif 52
