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 /*

  * Copyright 2006 The Android Open Source Project

  *

  * Use of this source code is governed by a BSD-style license that can be

  * found in the LICENSE file.

  */

 #if 0   // experimental

 class SkProcSpriteBlitter : public SkSpriteBlitter {

 public:

     typedef void (*Proc)(void* dst, const void* src, int count, const SkPMColor ctable[]);

     SkProcSpriteBlitter(const SkBitmap& source, Proc proc, unsigned srcShift, unsigned dstShift)

         : SkSpriteBlitter(source), fProc(proc), fSrcShift(SkToU8(srcShift)), fDstShift(SkToU8(dstShift)) {}

     virtual void blitRect(int x, int y, int width, int height)

     {

         size_t      dstRB = fDevice.rowBytes();

         size_t      srcRB = fSource.rowBytes();

         char*       dst = (char*)fDevice.getPixels() + y * dstRB + (x << fDstShift);

         const char* src = (const char*)fSource.getPixels() + (y - fTop) * srcRB + ((x - fLeft) << fSrcShift);

         Proc        proc = fProc;

         const SkPMColor* ctable = NULL;

         if fSource.getColorTable())

             ctable = fSource.getColorTable()->lockColors();

         while (--height >= 0)

         {

             proc(dst, src, width, ctable);

             dst += dstRB;

             src += srcRB;

         }

         if fSource.getColorTable())

             fSource.getColorTable()->unlockColors();

     }

 private:

     Proc    fProc;

     uint8_t fSrcShift, fDstShift;

 };

 #endif