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 "SkBlendMode.h" 14 15 // See the comment above GrXPFactory's definition about this warning suppression. 16 #if defined(__GNUC__) 17 #pragma GCC diagnostic push 18 #pragma GCC diagnostic ignored "-Wnon-virtual-dtor" 19 #endif 20 #if defined(__clang__) 21 #pragma clang diagnostic push 22 #pragma clang diagnostic ignored "-Wnon-virtual-dtor" 23 #endif 24 class GrPorterDuffXPFactory : public GrXPFactory { 25 public: 26 static const GrXPFactory* Get(SkBlendMode blendMode); 27 28 /** Because src-over is so common we special case it for performance reasons. If this returns 29 null then the SimpleSrcOverXP() below should be used. */ 30 static sk_sp<const GrXferProcessor> MakeSrcOverXferProcessor(const GrProcessorAnalysisColor&, 31 GrProcessorAnalysisCoverage, 32 bool hasMixedSamples, 33 const GrCaps&); 34 35 /** Returns a simple non-LCD porter duff blend XP with no optimizations or coverage. */ 36 static sk_sp<const GrXferProcessor> MakeNoCoverageXP(SkBlendMode); 37 38 /** This XP implements non-LCD src-over using hw blend with no optimizations. It is returned 39 by reference because it is global and its ref-cnting methods are not thread safe. */ 40 static const GrXferProcessor& SimpleSrcOverXP(); 41 42 static AnalysisProperties SrcOverAnalysisProperties(const GrProcessorAnalysisColor&, 43 const GrProcessorAnalysisCoverage&, 44 const GrCaps&, 45 GrPixelConfigIsClamped); 46 47 private: 48 constexpr GrPorterDuffXPFactory(SkBlendMode); 49 50 sk_sp<const GrXferProcessor> makeXferProcessor(const GrProcessorAnalysisColor&, 51 GrProcessorAnalysisCoverage, 52 bool hasMixedSamples, 53 const GrCaps&, 54 GrPixelConfigIsClamped) const override; 55 56 AnalysisProperties analysisProperties(const GrProcessorAnalysisColor&, 57 const GrProcessorAnalysisCoverage&, 58 const GrCaps&, 59 GrPixelConfigIsClamped) const override; 60 61 GR_DECLARE_XP_FACTORY_TEST 62 static void TestGetXPOutputTypes(const GrXferProcessor*, int* outPrimary, int* outSecondary); 63 64 SkBlendMode fBlendMode; 65 66 friend class GrPorterDuffTest; // for TestGetXPOutputTypes() 67 typedef GrXPFactory INHERITED; 68 }; 69 #if defined(__GNUC__) 70 #pragma GCC diagnostic pop 71 #endif 72 #if defined(__clang__) 73 #pragma clang diagnostic pop 74 #endif 75 76 #endif 77