/* * 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 SkNormalMapSource_DEFINED #define SkNormalMapSource_DEFINED #include "src/core/SkNormalSource.h" class SkNormalMapSourceImpl : public SkNormalSource { public: SkNormalMapSourceImpl(sk_sp mapShader, const SkMatrix& invCTM) : fMapShader(std::move(mapShader)) , fInvCTM(invCTM) {} #if SK_SUPPORT_GPU std::unique_ptr asFragmentProcessor(const GrFPArgs& args) const override; #endif SkNormalSource::Provider* asProvider(const SkShaderBase::ContextRec& rec, SkArenaAlloc* alloc) const override; protected: void flatten(SkWriteBuffer& buf) const override; bool computeNormTotalInverse(const SkShaderBase::ContextRec& rec, SkMatrix* normTotalInverse) const; private: SK_FLATTENABLE_HOOKS(SkNormalMapSourceImpl) class Provider : public SkNormalSource::Provider { public: Provider(const SkNormalMapSourceImpl& source, SkShaderBase::Context* mapContext); void fillScanLine(int x, int y, SkPoint3 output[], int count) const override; private: const SkNormalMapSourceImpl& fSource; SkShaderBase::Context* fMapContext; typedef SkNormalSource::Provider INHERITED; }; sk_sp fMapShader; SkMatrix fInvCTM; // Inverse of the canvas total matrix, used for rotating normals. friend class SkNormalSource; typedef SkNormalSource INHERITED; }; #endif