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1 
2 /*
3  * Copyright 2006 The Android Open Source Project
4  *
5  * Use of this source code is governed by a BSD-style license that can be
6  * found in the LICENSE file.
7  */
8 
9 
10 #if 0   // experimental
11 
12 class SkProcSpriteBlitter : public SkSpriteBlitter {
13 public:
14     typedef void (*Proc)(void* dst, const void* src, int count, const SkPMColor ctable[]);
15 
16     SkProcSpriteBlitter(const SkBitmap& source, Proc proc, unsigned srcShift, unsigned dstShift)
17         : SkSpriteBlitter(source), fProc(proc), fSrcShift(SkToU8(srcShift)), fDstShift(SkToU8(dstShift)) {}
18 
19     virtual void blitRect(int x, int y, int width, int height)
20     {
21         size_t      dstRB = fDevice.rowBytes();
22         size_t      srcRB = fSource.rowBytes();
23         char*       dst = (char*)fDevice.getPixels() + y * dstRB + (x << fDstShift);
24         const char* src = (const char*)fSource.getPixels() + (y - fTop) * srcRB + ((x - fLeft) << fSrcShift);
25         Proc        proc = fProc;
26         const SkPMColor* ctable = NULL;
27 
28         if fSource.getColorTable())
29             ctable = fSource.getColorTable()->lockColors();
30 
31         while (--height >= 0)
32         {
33             proc(dst, src, width, ctable);
34             dst += dstRB;
35             src += srcRB;
36         }
37 
38         if fSource.getColorTable())
39             fSource.getColorTable()->unlockColors();
40     }
41 
42 private:
43     Proc    fProc;
44     uint8_t fSrcShift, fDstShift;
45 };
46 
47 #endif
48