michael@0: 
michael@0: /*
michael@0:  * Copyright 2006 The Android Open Source Project
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: 
michael@0: 
michael@0: #if 0   // experimental
michael@0: 
michael@0: class SkProcSpriteBlitter : public SkSpriteBlitter {
michael@0: public:
michael@0:     typedef void (*Proc)(void* dst, const void* src, int count, const SkPMColor ctable[]);
michael@0: 
michael@0:     SkProcSpriteBlitter(const SkBitmap& source, Proc proc, unsigned srcShift, unsigned dstShift)
michael@0:         : SkSpriteBlitter(source), fProc(proc), fSrcShift(SkToU8(srcShift)), fDstShift(SkToU8(dstShift)) {}
michael@0: 
michael@0:     virtual void blitRect(int x, int y, int width, int height)
michael@0:     {
michael@0:         size_t      dstRB = fDevice.rowBytes();
michael@0:         size_t      srcRB = fSource.rowBytes();
michael@0:         char*       dst = (char*)fDevice.getPixels() + y * dstRB + (x << fDstShift);
michael@0:         const char* src = (const char*)fSource.getPixels() + (y - fTop) * srcRB + ((x - fLeft) << fSrcShift);
michael@0:         Proc        proc = fProc;
michael@0:         const SkPMColor* ctable = NULL;
michael@0: 
michael@0:         if fSource.getColorTable())
michael@0:             ctable = fSource.getColorTable()->lockColors();
michael@0: 
michael@0:         while (--height >= 0)
michael@0:         {
michael@0:             proc(dst, src, width, ctable);
michael@0:             dst += dstRB;
michael@0:             src += srcRB;
michael@0:         }
michael@0: 
michael@0:         if fSource.getColorTable())
michael@0:             fSource.getColorTable()->unlockColors();
michael@0:     }
michael@0: 
michael@0: private:
michael@0:     Proc    fProc;
michael@0:     uint8_t fSrcShift, fDstShift;
michael@0: };
michael@0: 
michael@0: #endif