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| 1 /* libs/graphics/sgl/SkProcSpriteBlitter.cpp | |
| 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 #if 0 // experimental | |
| 19 | |
| 20 class SkProcSpriteBlitter : public SkSpriteBlitter { | |
| 21 public: | |
| 22 typedef void (*Proc)(void* dst, const void* src, int count, const SkPMColor
ctable[]); | |
| 23 | |
| 24 SkProcSpriteBlitter(const SkBitmap& source, Proc proc, unsigned srcShift, un
signed dstShift) | |
| 25 : SkSpriteBlitter(source), fProc(proc), fSrcShift(SkToU8(srcShift)), fDs
tShift(SkToU8(dstShift)) {} | |
| 26 | |
| 27 virtual void blitRect(int x, int y, int width, int height) | |
| 28 { | |
| 29 size_t dstRB = fDevice.rowBytes(); | |
| 30 size_t srcRB = fSource.rowBytes(); | |
| 31 char* dst = (char*)fDevice.getPixels() + y * dstRB + (x << fDstShi
ft); | |
| 32 const char* src = (const char*)fSource.getPixels() + (y - fTop) * srcRB
+ ((x - fLeft) << fSrcShift); | |
| 33 Proc proc = fProc; | |
| 34 const SkPMColor* ctable = NULL; | |
| 35 | |
| 36 if fSource.getColorTable()) | |
| 37 ctable = fSource.getColorTable()->lockColors(); | |
| 38 | |
| 39 while (--height >= 0) | |
| 40 { | |
| 41 proc(dst, src, width, ctable); | |
| 42 dst += dstRB; | |
| 43 src += srcRB; | |
| 44 } | |
| 45 | |
| 46 if fSource.getColorTable()) | |
| 47 fSource.getColorTable()->unlockColors(false); | |
| 48 } | |
| 49 | |
| 50 private: | |
| 51 Proc fProc; | |
| 52 uint8_t fSrcShift, fDstShift; | |
| 53 }; | |
| 54 | |
| 55 #endif | |
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