gdi32: Try to coalesce into wider bands.
Signed-off-by: Huw Davies <huw@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
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@ -2589,10 +2589,9 @@ static void REGION_FreeStorage(ScanLineListBlock *pSLLBlock)
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*/
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static BOOL REGION_PtsToRegion( struct point_block *FirstPtBlock, WINEREGION *reg )
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{
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RECT *rects;
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POINT *pts;
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struct point_block *pb;
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int i, size;
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int i, size, cur_band = 0, prev_band = 0;
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RECT *extents;
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extents = ®->extents;
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@ -2600,7 +2599,6 @@ static BOOL REGION_PtsToRegion( struct point_block *FirstPtBlock, WINEREGION *re
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for (pb = FirstPtBlock, size = 0; pb; pb = pb->next) size += pb->count;
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if (!init_region( reg, size )) return FALSE;
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rects = reg->rects - 1;
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extents->left = LARGE_COORDINATE, extents->right = SMALL_COORDINATE;
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for (pb = FirstPtBlock; pb; pb = pb->next)
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@ -2610,15 +2608,14 @@ static BOOL REGION_PtsToRegion( struct point_block *FirstPtBlock, WINEREGION *re
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for (pts = pb->pts; i--; pts += 2) {
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if (pts->x == pts[1].x)
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continue;
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if (reg->numRects && pts->x == rects->left && pts->y == rects->bottom &&
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pts[1].x == rects->right &&
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(reg->numRects == 1 || rects[-1].top != rects->top) &&
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(i && pts[2].y > pts[1].y)) {
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rects->bottom = pts[1].y + 1;
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continue;
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}
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if (reg->numRects && pts[0].y != reg->rects[cur_band].top)
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{
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prev_band = REGION_Coalesce( reg, prev_band, cur_band );
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cur_band = reg->numRects;
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}
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add_rect( reg, pts[0].x, pts[0].y, pts[1].x, pts[1].y + 1 );
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rects++;
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if (pts[0].x < extents->left)
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extents->left = pts[0].x;
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if (pts[1].x > extents->right)
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@ -2627,6 +2624,7 @@ static BOOL REGION_PtsToRegion( struct point_block *FirstPtBlock, WINEREGION *re
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}
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if (reg->numRects) {
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REGION_Coalesce( reg, prev_band, cur_band );
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extents->top = reg->rects[0].top;
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extents->bottom = reg->rects[reg->numRects-1].bottom;
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} else {
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