| /* |
| * Copyright 2014 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef GrPorterDuffXferProcessor_DEFINED |
| #define GrPorterDuffXferProcessor_DEFINED |
| |
| #include "GrTypes.h" |
| #include "GrXferProcessor.h" |
| #include "SkXfermode.h" |
| |
| class GrProcOptInfo; |
| |
| class GrPorterDuffXPFactory : public GrXPFactory { |
| public: |
| static GrXPFactory* Create(SkXfermode::Mode mode); |
| |
| bool supportsRGBCoverage(GrColor knownColor, uint32_t knownColorFlags) const override; |
| |
| void getInvariantOutput(const GrProcOptInfo& colorPOI, const GrProcOptInfo& coveragePOI, |
| GrXPFactory::InvariantOutput*) const override; |
| |
| private: |
| GrPorterDuffXPFactory(GrBlendCoeff src, GrBlendCoeff dst); |
| |
| GrXferProcessor* onCreateXferProcessor(const GrDrawTargetCaps& caps, |
| const GrProcOptInfo& colorPOI, |
| const GrProcOptInfo& coveragePOI, |
| const GrDeviceCoordTexture* dstCopy) const override; |
| |
| bool willReadDstColor(const GrDrawTargetCaps& caps, |
| const GrProcOptInfo& colorPOI, |
| const GrProcOptInfo& coveragePOI) const override; |
| |
| bool onIsEqual(const GrXPFactory& xpfBase) const override { |
| const GrPorterDuffXPFactory& xpf = xpfBase.cast<GrPorterDuffXPFactory>(); |
| return (fSrcCoeff == xpf.fSrcCoeff && fDstCoeff == xpf.fDstCoeff); |
| } |
| |
| GR_DECLARE_XP_FACTORY_TEST; |
| |
| GrBlendCoeff fSrcCoeff; |
| GrBlendCoeff fDstCoeff; |
| |
| typedef GrXPFactory INHERITED; |
| }; |
| |
| #endif |