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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