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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkImageShader_DEFINED
#define SkImageShader_DEFINED
#include "SkBitmapProcShader.h"
#include "SkColorSpaceXformer.h"
#include "SkImage.h"
#include "SkShaderBase.h"
class SkImageShader : public SkShaderBase {
public:
static sk_sp<SkShader> Make(sk_sp<SkImage>,
SkShader::TileMode tx,
SkShader::TileMode ty,
const SkMatrix* localMatrix,
bool clampAsIfUnpremul = false);
bool isOpaque() const override;
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkImageShader)
#if SK_SUPPORT_GPU
std::unique_ptr<GrFragmentProcessor> asFragmentProcessor(const GrFPArgs&) const override;
#endif
private:
SkImageShader(sk_sp<SkImage>,
SkShader::TileMode tx,
SkShader::TileMode ty,
const SkMatrix* localMatrix,
bool clampAsIfUnpremul);
void flatten(SkWriteBuffer&) const override;
Context* onMakeContext(const ContextRec&, SkArenaAlloc* storage) const override;
#ifdef SK_SUPPORT_LEGACY_SHADER_ISABITMAP
bool onIsABitmap(SkBitmap*, SkMatrix*, SkShader::TileMode*) const override;
#endif
SkImage* onIsAImage(SkMatrix*, SkShader::TileMode*) const override;
bool onAppendStages(const StageRec&) const override;
sk_sp<SkShader> onMakeColorSpace(SkColorSpaceXformer* xformer) const override {
return xformer->apply(fImage.get())->makeShader(fTileModeX, fTileModeY,
&this->getLocalMatrix());
}
sk_sp<SkImage> fImage;
const SkShader::TileMode fTileModeX;
const SkShader::TileMode fTileModeY;
const bool fClampAsIfUnpremul;
friend class SkShaderBase;
typedef SkShaderBase INHERITED;
};
#endif
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