SkSpriteBlitter.h revision 03202c9c3dfbf8c4feb0a1ee9b3680817e633f58 
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
24class SkPaint;
25
26class SkSpriteBlitter : public SkBlitter {
27public:
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
47protected:
48    const SkBitmap* fDevice;
49    const SkBitmap* fSource;
50    int             fLeft, fTop;
51    const SkPaint*  fPaint;
52};
53
54#endif
55
56