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1 /* libs/graphics/sgl/SkSpriteBlitter.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 SkSpriteBlitter_DEFINED
19 #define SkSpriteBlitter_DEFINED
20 
21 #include "SkBlitter.h"
22 #include "SkBitmap.h"
23 
24 class SkPaint;
25 
26 class SkSpriteBlitter : public SkBlitter {
27 public:
28             SkSpriteBlitter(const SkBitmap& source);
29     virtual ~SkSpriteBlitter();
30 
31     virtual void setup(const SkBitmap& device, int left, int top,
32                        const SkPaint& paint);
33 
34     // overrides
35 #ifdef SK_DEBUG
36     virtual void    blitH(int x, int y, int width);
37     virtual void    blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]);
38     virtual void    blitV(int x, int y, int height, SkAlpha alpha);
39     virtual void    blitMask(const SkMask&, const SkIRect& clip);
40 #endif
41 
42     static SkSpriteBlitter* ChooseD16(const SkBitmap& source, const SkPaint&,
43                                       void* storage, size_t storageSize);
44     static SkSpriteBlitter* ChooseD32(const SkBitmap& source, const SkPaint&,
45                                       void* storage, size_t storageSize);
46 
47 protected:
48     const SkBitmap* fDevice;
49     const SkBitmap* fSource;
50     int             fLeft, fTop;
51     const SkPaint*  fPaint;
52 };
53 
54 #endif
55 
56