/*
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* Copyright 2014 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 SkLocalMatrixShader_DEFINED
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#define SkLocalMatrixShader_DEFINED
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#include "SkShaderBase.h"
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#include "SkReadBuffer.h"
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#include "SkWriteBuffer.h"
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class GrFragmentProcessor;
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class SkArenaAlloc;
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class SkColorSpaceXformer;
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class SkLocalMatrixShader final : public SkShaderBase {
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public:
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SkLocalMatrixShader(sk_sp<SkShader> proxy, const SkMatrix& localMatrix)
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: INHERITED(&localMatrix)
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, fProxyShader(std::move(proxy))
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{}
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GradientType asAGradient(GradientInfo* info) const override {
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return fProxyShader->asAGradient(info);
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}
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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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sk_sp<SkShader> makeAsALocalMatrixShader(SkMatrix* localMatrix) const override {
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if (localMatrix) {
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*localMatrix = this->getLocalMatrix();
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}
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return fProxyShader;
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}
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protected:
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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*) const override;
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#endif
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SkImage* onIsAImage(SkMatrix* matrix, TileMode* mode) 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 as_SB(fProxyShader)->makeColorSpace(xformer)->makeWithLocalMatrix(
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this->getLocalMatrix());
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}
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private:
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SK_FLATTENABLE_HOOKS(SkLocalMatrixShader)
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sk_sp<SkShader> fProxyShader;
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typedef SkShaderBase INHERITED;
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};
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#endif
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