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sw_engine: fine-tuning RLE performance.

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the arranged value is examined with the local test,
improved the speed twice for a corner-case that
extreamly huge size shape.
This commit is contained in:
Hermet Park 2024-06-06 21:44:07 +09:00
parent bfb7d46297
commit 46f4b8aeab
1 changed files with 2 additions and 5 deletions
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7
src/renderer/sw_engine/tvgSwRle.cpp
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@ -928,7 +928,7 @@ SwRleData* rleRender(SwRleData* rle, const SwOutline* outline, const SwBBox& ren
rw.cellYCnt = rw.cellMax.y - rw.cellMin.y;
rw.ySpan = 0;
rw.outline = const_cast<SwOutline*>(outline);
rw.bandSize = rw.bufferSize / (sizeof(Cell) * 8); //bandSize: 64
rw.bandSize = rw.bufferSize / (sizeof(Cell) * 2); //bandSize: 256
rw.bandShoot = 0;
rw.antiAlias = antiAlias;
@ -966,10 +966,7 @@ SwRleData* rleRender(SwRleData* rle, const SwOutline* outline, const SwBBox& ren
if (cellMod > 0) cellStart += sizeof(Cell) - cellMod;
auto cellEnd = rw.bufferSize;
cellEnd -= cellEnd % sizeof(Cell);
auto cellsMax = reinterpret_cast<Cell*>((char*)rw.buffer + cellEnd);
auto cellsMax = reinterpret_cast<Cell*>((char*)rw.buffer + rw.bufferSize);
rw.cells = reinterpret_cast<Cell*>((char*)rw.buffer + cellStart);
if (rw.cells >= cellsMax) goto reduce_bands;