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wayland: clear resource for pixmap on unrealize

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On cursor unrealize, the associated pixmap is destroyed, make sure we
clear the pointer from the private resource and check for the value
being non-null when setting or destroying the cursor.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96246
This commit is contained in:
Olivier Fourdan 2016-06-06 09:22:28 +02:00 • committed by Adam Jackson
parent 941aeb3b92
commit edd24aa50b
1 changed files with 15 additions and 0 deletions
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15
hw/xwayland/xwayland-cursor.c
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@ -76,8 +76,20 @@ static Bool
xwl_unrealize_cursor(DeviceIntPtr device, ScreenPtr screen, CursorPtr cursor)
{
PixmapPtr pixmap;
struct xwl_seat *xwl_seat;
pixmap = dixGetPrivate(&cursor->devPrivates, &xwl_cursor_private_key);
if (!pixmap)
return TRUE;
dixSetPrivate(&cursor->devPrivates, &xwl_cursor_private_key, NULL);
/* When called from FreeCursor(), device is always NULL */
if (device) {
xwl_seat = device->public.devicePrivate;
if (xwl_seat && cursor == xwl_seat->x_cursor)
xwl_seat->x_cursor = NULL;
}
return xwl_shm_destroy_pixmap(pixmap);
}
@ -122,6 +134,9 @@ xwl_seat_set_cursor(struct xwl_seat *xwl_seat)
cursor = xwl_seat->x_cursor;
pixmap = dixGetPrivate(&cursor->devPrivates, &xwl_cursor_private_key);
if (!pixmap)
return;
stride = cursor->bits->width * 4;
if (cursor->bits->argb)
memcpy(pixmap->devPrivate.ptr,