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authorJan Kiszka <jan.kiszka@siemens.com>2011-07-30 11:39:06 +0200
committerAnthony Liguori <aliguori@us.ibm.com>2011-08-05 10:57:34 -0500
commit97ad1c260cb76f834aa90dc6350fe405172b2cc3 (patch)
tree1df60f307b03e994e29b944aa8f51b3d3aa83a41 /ui
parent91ada9808408fcad818ced7309f47c5fb91c6075 (diff)
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sdl: Avoid redundant scaling deactivation
Prevents screen flickering. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'ui')
-rw-r--r--ui/sdl.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/ui/sdl.c b/ui/sdl.c
index 9a92b47..1563ee1 100644
--- a/ui/sdl.c
+++ b/ui/sdl.c
@@ -583,10 +583,12 @@ static void sdl_refresh(DisplayState *ds)
gui_keysym = 1;
break;
case 0x16: /* 'u' key on US keyboard */
- scaling_active = 0;
- sdl_resize(ds);
- vga_hw_invalidate();
- vga_hw_update();
+ if (scaling_active) {
+ scaling_active = 0;
+ sdl_resize(ds);
+ vga_hw_invalidate();
+ vga_hw_update();
+ }
break;
case 0x02 ... 0x0a: /* '1' to '9' keys */
/* Reset the modifiers sent to the current console */