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sw_engine: corrected the rle cell building

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Properly build the cell cover value
when a new cell value is just overlapped.

This fixes certain weird visual artifacts at a corner case.

issue: https://github.com/thorvg/thorvg/issues/2929
This commit is contained in:
Hermet Park 2025-01-02 17:40:29 +09:00 • committed by Mira Grudzinska
parent 978464d87c
commit cb0691fee0
1 changed files with 5 additions and 5 deletions
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10
src/renderer/sw_engine/tvgSwRle.cpp
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@ -460,7 +460,9 @@ static bool _setCell(RleWorker& rw, SwPoint pos)
pos.x -= rw.cellMin.x; pos.x -= rw.cellMin.x;
pos.y -= rw.cellMin.y; pos.y -= rw.cellMin.y;
if (pos.x > rw.cellMax.x) pos.x = rw.cellMax.x; //exceptions
if (pos.x < 0) pos.x = -1;
else if (pos.x > rw.cellMax.x) pos.x = rw.cellMax.x;
//Are we moving to a different cell? //Are we moving to a different cell?
if (pos != rw.cellPos) { if (pos != rw.cellPos) {
@ -468,11 +470,9 @@ static bool _setCell(RleWorker& rw, SwPoint pos)
if (!rw.invalid) { if (!rw.invalid) {
if (!_recordCell(rw)) return false; if (!_recordCell(rw)) return false;
} }
rw.area = rw.cover = 0;
rw.cellPos = pos;
} }
rw.area = 0;
rw.cover = 0;
rw.cellPos = pos;
rw.invalid = ((unsigned)pos.y >= (unsigned)rw.cellYCnt || pos.x >= rw.cellXCnt); rw.invalid = ((unsigned)pos.y >= (unsigned)rw.cellYCnt || pos.x >= rw.cellXCnt);
return true; return true;