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Properly handle return value of rc_intersect() 

Fixes some redraw glitches.
This commit is contained in:
Ole Loots 2013-04-15 00:36:57 +02:00
parent d9b8809908
commit 0d976df9f3
1 changed files with 6 additions and 1 deletions
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7
atari/rootwin.c
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@ -1061,6 +1061,8 @@ void window_process_redraws(ROOTWIN * rootwin)
wind_get_grect(rootwin->aes_handle, WF_FIRSTXYWH, &visible_ro);
while (visible_ro.g_w > 0 && visible_ro.g_h > 0) {
//dbg_grect("visible ", &visible_ro);
// TODO: optimze the rectangle list -
// remove rectangles which were completly inside the visible area.
// that way we don't have to loop over again...
@ -1074,7 +1076,10 @@ void window_process_redraws(ROOTWIN * rootwin)
rootwin->redraw_slots.areas[i].y1 -
rootwin->redraw_slots.areas[i].y0
};
rc_intersect(&visible_ro, &rdrw_area_ro);
if (!rc_intersect(&visible_ro, &rdrw_area_ro)) {
continue;
}
GRECT rdrw_area = rdrw_area_ro;
if (rc_intersect(&tb_area, &rdrw_area)) {