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      1 /*
      2  * Copyright 2017 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 /**************************************************************************************************
      9  *** This file was autogenerated from GrCircleEffect.fp; do not modify.
     10  **************************************************************************************************/
     11 #ifndef GrCircleEffect_DEFINED
     12 #define GrCircleEffect_DEFINED
     13 #include "SkTypes.h"
     14 #if SK_SUPPORT_GPU
     15 #include "GrFragmentProcessor.h"
     16 #include "GrCoordTransform.h"
     17 class GrCircleEffect : public GrFragmentProcessor {
     18 public:
     19     GrClipEdgeType edgeType() const { return fEdgeType; }
     20     SkPoint center() const { return fCenter; }
     21     float radius() const { return fRadius; }
     22 
     23     static std::unique_ptr<GrFragmentProcessor> Make(GrClipEdgeType edgeType, SkPoint center,
     24                                                      float radius) {
     25         // A radius below half causes the implicit insetting done by this processor to become
     26         // inverted. We could handle this case by making the processor code more complicated.
     27         if (radius < .5f && GrProcessorEdgeTypeIsInverseFill(edgeType)) {
     28             return nullptr;
     29         }
     30         return std::unique_ptr<GrFragmentProcessor>(new GrCircleEffect(edgeType, center, radius));
     31     }
     32     GrCircleEffect(const GrCircleEffect& src);
     33     std::unique_ptr<GrFragmentProcessor> clone() const override;
     34     const char* name() const override { return "CircleEffect"; }
     35 
     36 private:
     37     GrCircleEffect(GrClipEdgeType edgeType, SkPoint center, float radius)
     38             : INHERITED(kGrCircleEffect_ClassID,
     39                         (OptimizationFlags)kCompatibleWithCoverageAsAlpha_OptimizationFlag)
     40             , fEdgeType(edgeType)
     41             , fCenter(center)
     42             , fRadius(radius) {}
     43     GrGLSLFragmentProcessor* onCreateGLSLInstance() const override;
     44     void onGetGLSLProcessorKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const override;
     45     bool onIsEqual(const GrFragmentProcessor&) const override;
     46     GR_DECLARE_FRAGMENT_PROCESSOR_TEST
     47     GrClipEdgeType fEdgeType;
     48     SkPoint fCenter;
     49     float fRadius;
     50     typedef GrFragmentProcessor INHERITED;
     51 };
     52 #endif
     53 #endif
     54