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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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