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winex11: Add a helper function to check a motion event against the serial number. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2015-12-01 17:42:01 +09:00
parent 93ff3fde8a
commit 9d237f97fc
1 changed files with 21 additions and 19 deletions
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32
dlls/winex11.drv/mouse.c
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@ -520,6 +520,21 @@ BOOL clip_fullscreen_window( HWND hwnd, BOOL reset )
return grab_clipping_window( &rect );
}
/***********************************************************************
* is_old_motion_event
*/
static BOOL is_old_motion_event( unsigned long serial )
{
struct x11drv_thread_data *thread_data = x11drv_thread_data();
if (!thread_data->warp_serial) return FALSE;
if ((long)(serial - thread_data->warp_serial) < 0) return TRUE;
thread_data->warp_serial = 0; /* we caught up now */
return FALSE;
}
/***********************************************************************
* send_mouse_input
*
@ -1576,20 +1591,11 @@ void X11DRV_MotionNotify( HWND hwnd, XEvent *xev )
input.u.mi.time = EVENT_x11_time_to_win32_time( event->time );
input.u.mi.dwExtraInfo = 0;
if (!hwnd)
{
struct x11drv_thread_data *thread_data = x11drv_thread_data();
if (thread_data->warp_serial)
{
if ((long)(event->serial - thread_data->warp_serial) < 0)
if (!hwnd && is_old_motion_event( event->serial ))
{
TRACE( "pos %d,%d old serial %lu, ignoring\n", input.u.mi.dx, input.u.mi.dy, event->serial );
return;
}
thread_data->warp_serial = 0; /* we caught up now */
}
}
send_mouse_input( hwnd, event->window, event->state, &input );
}
@ -1677,15 +1683,11 @@ static void X11DRV_RawMotion( XGenericEventCookie *xev )
break;
}
if (broken_rawevents && thread_data->warp_serial)
{
if ((long)(xev->serial - thread_data->warp_serial) < 0)
if (broken_rawevents && is_old_motion_event( xev->serial ))
{
TRACE( "pos %d,%d old serial %lu, ignoring\n", input.u.mi.dx, input.u.mi.dy, xev->serial );
return;
}
thread_data->warp_serial = 0; /* we caught up now */
}
TRACE( "pos %d,%d (event %f,%f)\n", input.u.mi.dx, input.u.mi.dy, dx, dy );