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sw_engine: fix TexmapPolygon rastering

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The y range initialization was missing a check to ensure
that the height is a positive value. This could lead to
an attempt to call malloc with a negative argument, which
cast to an unsigned value, caused a crash.
This commit is contained in:
Mira Grudzinska 2024-08-21 02:29:53 +02:00 • committed by Hermet Park
parent f5337015e9
commit a08c73b08b
1 changed files with 1 additions and 3 deletions
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4
src/renderer/sw_engine/tvgSwRasterTexmap.h
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@ -53,12 +53,10 @@ static bool _arrange(const SwImage* image, const SwBBox* region, int& yStart, in
regionBottom = image->rle->spans[image->rle->size - 1].y;
}
if (yStart >= regionBottom) return false;
if (yStart < regionTop) yStart = regionTop;
if (yEnd > regionBottom) yEnd = regionBottom;
return true;
return yEnd > yStart;
}