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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 SkColorFilterShader_DEFINED
#define SkColorFilterShader_DEFINED
#include "SkColorFilter.h"
#include "SkShader.h"
class SkColorFilterShader : public SkShader {
public:
SkColorFilterShader(SkShader* shader, SkColorFilter* filter);
#if SK_SUPPORT_GPU
const GrFragmentProcessor* asFragmentProcessor(GrContext*,
const SkMatrix& viewM,
const SkMatrix* localMatrix,
SkFilterQuality) const override;
#endif
class FilterShaderContext : public SkShader::Context {
public:
// Takes ownership of shaderContext and calls its destructor.
FilterShaderContext(const SkColorFilterShader&, SkShader::Context*, const ContextRec&);
virtual ~FilterShaderContext();
uint32_t getFlags() const override;
void shadeSpan(int x, int y, SkPMColor[], int count) override;
void shadeSpan4f(int x, int y, SkPM4f[], int count) override;
void set3DMask(const SkMask* mask) override {
// forward to our proxy
fShaderContext->set3DMask(mask);
}
private:
SkShader::Context* fShaderContext;
typedef SkShader::Context INHERITED;
};
SK_TO_STRING_OVERRIDE()
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkColorFilterShader)
protected:
void flatten(SkWriteBuffer&) const override;
size_t onContextSize(const ContextRec&) const override;
Context* onCreateContext(const ContextRec&, void* storage) const override;
private:
SkAutoTUnref<SkShader> fShader;
SkAutoTUnref<SkColorFilter> fFilter;
typedef SkShader INHERITED;
};
#endif
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