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 GrCoverageSetOpXP_DEFINED 9#define GrCoverageSetOpXP_DEFINED 10 11#include "GrTypes.h" 12#include "GrXferProcessor.h" 13#include "SkRegion.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 25/** 26 * This xfer processor directly blends the the src coverage with the dst using a set operator. It is 27 * useful for rendering coverage masks using CSG. It can optionally invert the src coverage before 28 * applying the set operator. 29 */ 30class GrCoverageSetOpXPFactory : public GrXPFactory { 31public: 32 static const GrXPFactory* Get(SkRegion::Op regionOp, bool invertCoverage = false); 33 34private: 35 constexpr GrCoverageSetOpXPFactory(SkRegion::Op regionOp, bool invertCoverage); 36 37 sk_sp<const GrXferProcessor> makeXferProcessor(const GrProcessorAnalysisColor&, 38 GrProcessorAnalysisCoverage, 39 bool hasMixedSamples, 40 const GrCaps&, 41 GrPixelConfigIsClamped) const override; 42 43 AnalysisProperties analysisProperties(const GrProcessorAnalysisColor&, 44 const GrProcessorAnalysisCoverage&, 45 const GrCaps&, 46 GrPixelConfigIsClamped) const override { 47 return AnalysisProperties::kIgnoresInputColor; 48 } 49 50 51 GR_DECLARE_XP_FACTORY_TEST 52 53 SkRegion::Op fRegionOp; 54 bool fInvertCoverage; 55 56 typedef GrXPFactory INHERITED; 57}; 58#if defined(__GNUC__) 59#pragma GCC diagnostic pop 60#endif 61#if defined(__clang__) 62#pragma clang diagnostic pop 63#endif 64 65#endif 66