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