text: /*
   * 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 GrCoverageSetOpXP_DEFINED
  #define GrCoverageSetOpXP_DEFINED
  
  #include "GrTypes.h"
  #include "GrXferProcessor.h"
  #include "SkRegion.h"
  
  // See the comment above GrXPFactory's definition about this warning suppression.
  #if defined(__GNUC__) || defined(__clang)
  #pragma GCC diagnostic push
  #pragma GCC diagnostic ignored "-Wnon-virtual-dtor"
  #endif
  
  /**
   * This xfer processor directly blends the the src coverage with the dst using a set operator. It is
   * useful for rendering coverage masks using CSG. It can optionally invert the src coverage before
   * applying the set operator.
   */
  class GrCoverageSetOpXPFactory : public GrXPFactory {
  public:
      static const GrXPFactory* Get(SkRegion::Op regionOp, bool invertCoverage = false);
  
  private:
      constexpr GrCoverageSetOpXPFactory(SkRegion::Op regionOp, bool invertCoverage);
  
      sk_sp<const GrXferProcessor> makeXferProcessor(const GrProcessorAnalysisColor&,
                                                     GrProcessorAnalysisCoverage,
                                                     bool hasMixedSamples,
                                                     const GrCaps&) const override;
  
      AnalysisProperties analysisProperties(const GrProcessorAnalysisColor&,
                                            const GrProcessorAnalysisCoverage&,
                                            const GrCaps&) const override {
          return AnalysisProperties::kIgnoresInputColor;
      }
  
  
      GR_DECLARE_XP_FACTORY_TEST
  
      SkRegion::Op fRegionOp;
      bool         fInvertCoverage;
  
      typedef GrXPFactory INHERITED;
  };
  #if defined(__GNUC__) || defined(__clang)
  #pragma GCC diagnostic pop
  #endif
  #endif
  
  