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/*
* 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 SkLocalMatrixShader_DEFINED
#define SkLocalMatrixShader_DEFINED
#include "SkShaderBase.h"
#include "SkReadBuffer.h"
#include "SkWriteBuffer.h"
class GrFragmentProcessor;
class SkArenaAlloc;
class SkColorSpaceXformer;
class SkLocalMatrixShader final : public SkShaderBase {
public:
SkLocalMatrixShader(sk_sp<SkShader> proxy, const SkMatrix& localMatrix)
: INHERITED(&localMatrix)
, fProxyShader(std::move(proxy))
{}
GradientType asAGradient(GradientInfo* info) const override {
return fProxyShader->asAGradient(info);
}
#if SK_SUPPORT_GPU
std::unique_ptr<GrFragmentProcessor> asFragmentProcessor(const GrFPArgs&) const override;
#endif
sk_sp<SkShader> makeAsALocalMatrixShader(SkMatrix* localMatrix) const override {
if (localMatrix) {
*localMatrix = this->getLocalMatrix();
}
return fProxyShader;
}
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkLocalMatrixShader)
protected:
void flatten(SkWriteBuffer&) const override;
Context* onMakeContext(const ContextRec&, SkArenaAlloc*) const override;
SkImage* onIsAImage(SkMatrix* matrix, TileMode* mode) const override;
bool onAppendStages(const StageRec&) const override;
sk_sp<SkShader> onMakeColorSpace(SkColorSpaceXformer* xformer) const override {
return as_SB(fProxyShader)->makeColorSpace(xformer)->makeWithLocalMatrix(
this->getLocalMatrix());
}
#ifdef SK_SUPPORT_LEGACY_SHADER_ISABITMAP
bool onIsABitmap(SkBitmap* bitmap, SkMatrix* matrix, TileMode* mode) const override {
return fProxyShader->isABitmap(bitmap, matrix, mode);
}
#endif
private:
sk_sp<SkShader> fProxyShader;
typedef SkShaderBase INHERITED;
};
#endif
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