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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrShadowGeoProc_DEFINED
#define GrShadowGeoProc_DEFINED
#include "GrProcessor.h"
#include "GrGeometryProcessor.h"
class GrGLRRectShadowGeoProc;
/**
* The output color of this effect is a coverage mask for a rrect shadow,
* assuming circular corner geometry.
*/
class GrRRectShadowGeoProc : public GrGeometryProcessor {
public:
static sk_sp<GrGeometryProcessor> Make() {
return sk_sp<GrGeometryProcessor>(new GrRRectShadowGeoProc());
}
const char* name() const override { return "RRectShadow"; }
const Attribute& inPosition() const { return kInPosition; }
const Attribute& inColor() const { return kInColor; }
const Attribute& inShadowParams() const { return kInShadowParams; }
GrColor color() const { return fColor; }
void getGLSLProcessorKey(const GrShaderCaps& caps, GrProcessorKeyBuilder* b) const override {}
GrGLSLPrimitiveProcessor* createGLSLInstance(const GrShaderCaps&) const override;
private:
GrRRectShadowGeoProc();
const Attribute& onVertexAttribute(int i) const override {
return IthAttribute(i, kInPosition, kInColor, kInShadowParams);
}
GrColor fColor;
static constexpr Attribute kInPosition = {"inPosition", kFloat2_GrVertexAttribType};
static constexpr Attribute kInColor = {"inColor", kUByte4_norm_GrVertexAttribType};
static constexpr Attribute kInShadowParams = {"inShadowParams", kHalf4_GrVertexAttribType};
GR_DECLARE_GEOMETRY_PROCESSOR_TEST
typedef GrGeometryProcessor INHERITED;
};
#endif
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