Line data    Source code

       1             : /*
       2             :  * Copyright 2016 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 GrShadowGeoProc_DEFINED
       9             : #define GrShadowGeoProc_DEFINED
      10             : 
      11             : #include "GrProcessor.h"
      12             : #include "GrGeometryProcessor.h"
      13             : 
      14             : class GrGLRRectShadowGeoProc;
      15             : 
      16             : /**
      17             :  * The output color of this effect is a coverage mask for a rrect shadow,
      18             :  * assuming circular corner geometry.
      19             :  */
      20             : class GrRRectShadowGeoProc : public GrGeometryProcessor {
      21             : public:
      22           0 :     static sk_sp<GrGeometryProcessor> Make(const SkMatrix& localMatrix) {
      23           0 :         return sk_sp<GrGeometryProcessor>(new GrRRectShadowGeoProc(localMatrix));
      24             :     }
      25             : 
      26           0 :     ~GrRRectShadowGeoProc() override {}
      27             : 
      28           0 :     const char* name() const override { return "RRectShadow"; }
      29             : 
      30           0 :     const Attribute* inPosition() const { return fInPosition; }
      31           0 :     const Attribute* inColor() const { return fInColor; }
      32           0 :     const Attribute* inShadowParams() const { return fInShadowParams; }
      33             :     GrColor color() const { return fColor; }
      34           0 :     const SkMatrix& localMatrix() const { return fLocalMatrix; }
      35             : 
      36             :     void getGLSLProcessorKey(const GrShaderCaps& caps, GrProcessorKeyBuilder* b) const override;
      37             : 
      38             :     GrGLSLPrimitiveProcessor* createGLSLInstance(const GrShaderCaps&) const override;
      39             : 
      40             : private:
      41             :     GrRRectShadowGeoProc(const SkMatrix& localMatrix);
      42             : 
      43             :     GrColor          fColor;
      44             :     SkMatrix         fLocalMatrix;
      45             :     const Attribute* fInPosition;
      46             :     const Attribute* fInColor;
      47             :     const Attribute* fInShadowParams;
      48             : 
      49             :     GR_DECLARE_GEOMETRY_PROCESSOR_TEST;
      50             : 
      51             :     typedef GrGeometryProcessor INHERITED;
      52             : };
      53             : 
      54             : 
      55             : #endif