reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame^] | 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, unsigned dstShift) |
| 25 | : SkSpriteBlitter(source), fProc(proc), fSrcShift(SkToU8(srcShift)), fDstShift(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 << fDstShift); |
| 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 |