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| 1 /* libs/graphics/sgl/SkBitmapShader.h | |
| 2 ** | |
| 3 ** Copyright 2006, The Android Open Source Project | |
| 4 ** | |
| 5 ** Licensed under the Apache License, Version 2.0 (the "License"); | |
| 6 ** you may not use this file except in compliance with the License. | |
| 7 ** You may obtain a copy of the License at | |
| 8 ** | |
| 9 ** http://www.apache.org/licenses/LICENSE-2.0 | |
| 10 ** | |
| 11 ** Unless required by applicable law or agreed to in writing, software | |
| 12 ** distributed under the License is distributed on an "AS IS" BASIS, | |
| 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 14 ** See the License for the specific language governing permissions and | |
| 15 ** limitations under the License. | |
| 16 */ | |
| 17 | |
| 18 #ifndef SkBitmapProcShader_DEFINED | |
| 19 #define SkBitmapProcShader_DEFINED | |
| 20 | |
| 21 #include "SkShader.h" | |
| 22 #include "SkBitmapProcState.h" | |
| 23 | |
| 24 class SkBitmapProcShader : public SkShader { | |
| 25 public: | |
| 26 SkBitmapProcShader(const SkBitmap& src, TileMode tx, TileMode ty); | |
| 27 | |
| 28 // overrides from SkShader | |
| 29 virtual bool setContext(const SkBitmap&, const SkPaint&, const SkMatrix&); | |
| 30 virtual uint32_t getFlags() { return fFlags; } | |
| 31 virtual void shadeSpan(int x, int y, SkPMColor dstC[], int count); | |
| 32 virtual void shadeSpan16(int x, int y, uint16_t dstC[], int count); | |
| 33 virtual void beginSession(); | |
| 34 virtual void endSession(); | |
| 35 virtual bool asABitmap(SkBitmap*, SkMatrix*, TileMode*); | |
| 36 | |
| 37 static bool CanDo(const SkBitmap&, TileMode tx, TileMode ty); | |
| 38 | |
| 39 static SkFlattenable* CreateProc(SkFlattenableReadBuffer& buffer) { | |
| 40 return SkNEW_ARGS(SkBitmapProcShader, (buffer)); | |
| 41 } | |
| 42 | |
| 43 protected: | |
| 44 SkBitmapProcShader(SkFlattenableReadBuffer& ); | |
| 45 virtual void flatten(SkFlattenableWriteBuffer& ); | |
| 46 virtual Factory getFactory() { return CreateProc; } | |
| 47 | |
| 48 SkBitmap fRawBitmap; // experimental for RLE encoding | |
| 49 SkBitmapProcState fState; | |
| 50 uint32_t fFlags; | |
| 51 | |
| 52 private: | |
| 53 typedef SkShader INHERITED; | |
| 54 }; | |
| 55 | |
| 56 #endif | |
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