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gdi32: Try to coalesce into wider bands.

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Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Huw Davies 2016-07-04 09:05:44 +01:00 committed by Alexandre Julliard
parent 0e93387d9b
commit 27375d8476
1 changed files with 9 additions and 11 deletions
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20
dlls/gdi32/region.c
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@ -2589,10 +2589,9 @@ static void REGION_FreeStorage(ScanLineListBlock *pSLLBlock)
*/
static BOOL REGION_PtsToRegion( struct point_block *FirstPtBlock, WINEREGION *reg )
{
RECT *rects;
POINT *pts;
struct point_block *pb;
int i, size;
int i, size, cur_band = 0, prev_band = 0;
RECT *extents;
extents = &reg->extents;
@ -2600,7 +2599,6 @@ static BOOL REGION_PtsToRegion( struct point_block *FirstPtBlock, WINEREGION *re
for (pb = FirstPtBlock, size = 0; pb; pb = pb->next) size += pb->count;
if (!init_region( reg, size )) return FALSE;
rects = reg->rects - 1;
extents->left = LARGE_COORDINATE, extents->right = SMALL_COORDINATE;
for (pb = FirstPtBlock; pb; pb = pb->next)
@ -2610,15 +2608,14 @@ static BOOL REGION_PtsToRegion( struct point_block *FirstPtBlock, WINEREGION *re
for (pts = pb->pts; i--; pts += 2) {
if (pts->x == pts[1].x)
continue;
if (reg->numRects && pts->x == rects->left && pts->y == rects->bottom &&
pts[1].x == rects->right &&
(reg->numRects == 1 || rects[-1].top != rects->top) &&
(i && pts[2].y > pts[1].y)) {
rects->bottom = pts[1].y + 1;
continue;
}
if (reg->numRects && pts[0].y != reg->rects[cur_band].top)
{
prev_band = REGION_Coalesce( reg, prev_band, cur_band );
cur_band = reg->numRects;
}
add_rect( reg, pts[0].x, pts[0].y, pts[1].x, pts[1].y + 1 );
rects++;
if (pts[0].x < extents->left)
extents->left = pts[0].x;
if (pts[1].x > extents->right)
@ -2627,6 +2624,7 @@ static BOOL REGION_PtsToRegion( struct point_block *FirstPtBlock, WINEREGION *re
}
if (reg->numRects) {
REGION_Coalesce( reg, prev_band, cur_band );
extents->top = reg->rects[0].top;
extents->bottom = reg->rects[reg->numRects-1].bottom;
} else {