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/* libs/graphics/sgl/SkProcSpriteBlitter.cpp
**
** Copyright 2006, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#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(false);
}
private:
Proc fProc;
uint8_t fSrcShift, fDstShift;
};
#endif
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