| /* |
| * Copyright 2012 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkFilterShader_DEFINED |
| #define SkFilterShader_DEFINED |
| |
| #include "SkShader.h" |
| |
| class SkColorFilter; |
| |
| class SkFilterShader : public SkShader { |
| public: |
| SkFilterShader(SkShader* shader, SkColorFilter* filter); |
| virtual ~SkFilterShader(); |
| |
| size_t contextSize() const override; |
| |
| class FilterShaderContext : public SkShader::Context { |
| public: |
| // Takes ownership of shaderContext and calls its destructor. |
| FilterShaderContext(const SkFilterShader&, SkShader::Context*, const ContextRec&); |
| virtual ~FilterShaderContext(); |
| |
| uint32_t getFlags() const override; |
| |
| void shadeSpan(int x, int y, SkPMColor[], int count) override; |
| |
| void set3DMask(const SkMask* mask) override { |
| // forward to our proxy |
| fShaderContext->set3DMask(mask); |
| } |
| |
| private: |
| SkShader::Context* fShaderContext; |
| |
| typedef SkShader::Context INHERITED; |
| }; |
| |
| SK_TO_STRING_OVERRIDE() |
| SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkFilterShader) |
| |
| protected: |
| void flatten(SkWriteBuffer&) const override; |
| Context* onCreateContext(const ContextRec&, void* storage) const override; |
| |
| |
| private: |
| SkShader* fShader; |
| SkColorFilter* fFilter; |
| |
| typedef SkShader INHERITED; |
| }; |
| |
| #endif |