/* * Copyright 2015 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #ifndef SkArithmeticMode_gpu_DEFINED #define SkArithmeticMode_gpu_DEFINED #include "SkTypes.h" #if SK_SUPPORT_GPU #include "GrCaps.h" #include "GrCoordTransform.h" #include "GrFragmentProcessor.h" #include "GrTextureAccess.h" #include "GrTypes.h" #include "GrXferProcessor.h" class GrInvariantOutput; class GrProcOptInfo; class GrTexture; /////////////////////////////////////////////////////////////////////////////// // Fragment Processor /////////////////////////////////////////////////////////////////////////////// class GrGLArtithmeticFP; class GrArithmeticFP : public GrFragmentProcessor { public: static GrFragmentProcessor* Create(GrProcessorDataManager* procDataManager, float k1, float k2, float k3, float k4, bool enforcePMColor, GrTexture* background) { return SkNEW_ARGS(GrArithmeticFP, (procDataManager, k1, k2, k3, k4, enforcePMColor, background)); } ~GrArithmeticFP() override {}; const char* name() const override { return "Arithmetic"; } GrGLFragmentProcessor* createGLInstance() const override; float k1() const { return fK1; } float k2() const { return fK2; } float k3() const { return fK3; } float k4() const { return fK4; } bool enforcePMColor() const { return fEnforcePMColor; } private: void onGetGLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b) const override; bool onIsEqual(const GrFragmentProcessor&) const override; void onComputeInvariantOutput(GrInvariantOutput* inout) const override; GrArithmeticFP(GrProcessorDataManager*, float k1, float k2, float k3, float k4, bool enforcePMColor, GrTexture* background); float fK1, fK2, fK3, fK4; bool fEnforcePMColor; GrCoordTransform fBackgroundTransform; GrTextureAccess fBackgroundAccess; GR_DECLARE_FRAGMENT_PROCESSOR_TEST; typedef GrFragmentProcessor INHERITED; }; /////////////////////////////////////////////////////////////////////////////// // Xfer Processor /////////////////////////////////////////////////////////////////////////////// class GrArithmeticXPFactory : public GrXPFactory { public: static GrXPFactory* Create(float k1, float k2, float k3, float k4, bool enforcePMColor) { return SkNEW_ARGS(GrArithmeticXPFactory, (k1, k2, k3, k4, enforcePMColor)); } bool supportsRGBCoverage(GrColor knownColor, uint32_t knownColorFlags) const override { return true; } void getInvariantBlendedColor(const GrProcOptInfo& colorPOI, GrXPFactory::InvariantBlendedColor*) const override; private: GrArithmeticXPFactory(float k1, float k2, float k3, float k4, bool enforcePMColor); GrXferProcessor* onCreateXferProcessor(const GrCaps& caps, const GrProcOptInfo& colorPOI, const GrProcOptInfo& coveragePOI, bool hasMixedSamples, const DstTexture*) const override; bool willReadDstColor(const GrCaps& caps, const GrProcOptInfo& colorPOI, const GrProcOptInfo& coveragePOI, bool hasMixedSamples) const override { return true; } bool onIsEqual(const GrXPFactory& xpfBase) const override { const GrArithmeticXPFactory& xpf = xpfBase.cast(); if (fK1 != xpf.fK1 || fK2 != xpf.fK2 || fK3 != xpf.fK3 || fK4 != xpf.fK4 || fEnforcePMColor != xpf.fEnforcePMColor) { return false; } return true; } GR_DECLARE_XP_FACTORY_TEST; float fK1, fK2, fK3, fK4; bool fEnforcePMColor; typedef GrXPFactory INHERITED; }; #endif #endif