1 /* 2 * Copyright 2018 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 GrFPArgs_DEFINED 9 #define GrFPArgs_DEFINED 10 11 #include "include/core/SkMatrix.h" 12 13 class GrColorInfo; 14 class GrRecordingContext; 15 class SkMatrixProvider; 16 17 struct GrFPArgs { GrFPArgsGrFPArgs18 GrFPArgs(GrRecordingContext* context, 19 const SkMatrixProvider& matrixProvider, 20 const GrColorInfo* dstColorInfo) 21 : fContext(context) 22 , fMatrixProvider(matrixProvider) 23 , fDstColorInfo(dstColorInfo) { 24 SkASSERT(fContext); 25 } 26 27 class WithPreLocalMatrix; 28 withNewMatrixProviderGrFPArgs29 GrFPArgs withNewMatrixProvider(const SkMatrixProvider& provider) const { 30 GrFPArgs newArgs(fContext, provider, fDstColorInfo); 31 newArgs.fInputColorIsOpaque = fInputColorIsOpaque; 32 newArgs.fPreLocalMatrix = fPreLocalMatrix; 33 return newArgs; 34 } 35 36 GrRecordingContext* fContext; 37 const SkMatrixProvider& fMatrixProvider; 38 39 const SkMatrix* fPreLocalMatrix = nullptr; 40 41 // Make this SkAlphaType? 42 bool fInputColorIsOpaque = false; 43 44 const GrColorInfo* fDstColorInfo; 45 }; 46 47 class GrFPArgs::WithPreLocalMatrix final : public GrFPArgs { 48 public: WithPreLocalMatrix(const GrFPArgs & args,const SkMatrix & lm)49 WithPreLocalMatrix(const GrFPArgs& args, const SkMatrix& lm) : INHERITED(args) { 50 if (!lm.isIdentity()) { 51 if (fPreLocalMatrix) { 52 fStorage.setConcat(lm, *fPreLocalMatrix); 53 fPreLocalMatrix = fStorage.isIdentity() ? nullptr : &fStorage; 54 } else { 55 fPreLocalMatrix = &lm; 56 } 57 } 58 } 59 60 private: 61 WithPreLocalMatrix(const WithPreLocalMatrix&) = delete; 62 WithPreLocalMatrix& operator=(const WithPreLocalMatrix&) = delete; 63 64 SkMatrix fStorage; 65 66 using INHERITED = GrFPArgs; 67 }; 68 69 #endif 70