[mutter] native: Don't wait for a new input event to wrap the pointer

[Jonas Ådahl <jadahl src gnome org>]

commit 961166115461e84a6ec31782535585369ff528cb
Author: Jonas Ådahl <jadahl gmail com>
Date:   Fri Jul 10 17:01:22 2015 +0800

    native: Don't wait for a new input event to wrap the pointer
    
    If we rely on getting back an input event with the warped pointer
    coordinates, we might draw a frame with the old coordinates if we warp
    during the paint phase. Avoid that by moving the cursor immediately.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=744104

 src/backends/native/meta-backend-native.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/backends/native/meta-backend-native.c b/src/backends/native/meta-backend-native.c
index 768b96b..454eec6 100644
--- a/src/backends/native/meta-backend-native.c
+++ b/src/backends/native/meta-backend-native.c
@@ -36,6 +36,7 @@
 #include "meta-monitor-manager-kms.h"
 #include "meta-cursor-renderer-native.h"
 #include "meta-launcher.h"
+#include "backends/meta-cursor-tracker-private.h"
 #include "backends/meta-pointer-constraint.h"
 
 #include <stdlib.h>
@@ -279,11 +280,16 @@ meta_backend_native_warp_pointer (MetaBackend *backend,
 {
   ClutterDeviceManager *manager = clutter_device_manager_get_default ();
   ClutterInputDevice *device = clutter_device_manager_get_core_device (manager, CLUTTER_POINTER_DEVICE);
+  MetaCursorTracker *tracker = meta_cursor_tracker_get_for_screen (NULL);
 
   /* XXX */
   guint32 time_ = 0;
 
+  /* Warp the input device pointer state. */
   clutter_evdev_warp_pointer (device, time_, x, y);
+
+  /* Warp displayed pointer cursor. */
+  meta_cursor_tracker_update_position (tracker, x, y);
 }
 
 static void