| /* |
| * Copyright 2006 The Android Open Source Project |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkTransparentShader_DEFINED |
| #define SkTransparentShader_DEFINED |
| |
| #include "SkShader.h" |
| |
| class SK_API SkTransparentShader : public SkShader { |
| public: |
| SkTransparentShader() {} |
| |
| size_t contextSize() const SK_OVERRIDE; |
| |
| class TransparentShaderContext : public SkShader::Context { |
| public: |
| TransparentShaderContext(const SkTransparentShader& shader, const ContextRec&); |
| virtual ~TransparentShaderContext(); |
| |
| uint32_t getFlags() const SK_OVERRIDE; |
| void shadeSpan(int x, int y, SkPMColor[], int count) SK_OVERRIDE; |
| void shadeSpan16(int x, int y, uint16_t span[], int count) SK_OVERRIDE; |
| |
| private: |
| const SkBitmap* fDevice; |
| |
| typedef SkShader::Context INHERITED; |
| }; |
| |
| SK_TO_STRING_OVERRIDE() |
| SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkTransparentShader) |
| |
| protected: |
| Context* onCreateContext(const ContextRec&, void* storage) const SK_OVERRIDE; |
| |
| // we don't need to flatten anything at all |
| void flatten(SkWriteBuffer&) const SK_OVERRIDE {} |
| |
| private: |
| typedef SkShader INHERITED; |
| }; |
| |
| #endif |