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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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