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gdi32: Merge rectangles horizontally when possible in CreatePolyPolygonRgn. 

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=50539
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2021-01-22 11:02:45 +01:00
parent 70d1263071
commit b67f39ccc6
1 changed files with 6 additions and 3 deletions
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9
dlls/gdi32/region.c
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@ -2613,12 +2613,15 @@ static void scan_convert( WINEREGION *obj, EdgeTable *ET, INT mode, const RECT *
{
obj->rects[obj->numRects].left = active->bres.minor_axis;
obj->rects[obj->numRects].top = y;
obj->rects[obj->numRects].bottom = y + 1;
}
else if (obj->rects[obj->numRects].left != active->bres.minor_axis)
{
obj->rects[obj->numRects].right = active->bres.minor_axis;
obj->rects[obj->numRects].bottom = y + 1;
obj->numRects++;
/* create new rect only if we can't merge with the previous one */
if (!obj->numRects || obj->rects[obj->numRects-1].top != y ||
obj->rects[obj->numRects-1].right < obj->rects[obj->numRects].left)
obj->numRects++;
obj->rects[obj->numRects-1].right = active->bres.minor_axis;
}
first = !first;
}