spice: set pointer position on hotspot

The Spice protocol uses cursor position on hotspot: the client is
applying hotspot offset when drawing the cursor.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
diff --git a/include/ui/spice-display.h b/include/ui/spice-display.h
index 53883a1..b25328a 100644
--- a/include/ui/spice-display.h
+++ b/include/ui/spice-display.h
@@ -97,7 +97,8 @@
     /* cursor (without qxl): displaychangelistener -> spice server */
     SimpleSpiceCursor *ptr_define;
     SimpleSpiceCursor *ptr_move;
-    uint16_t ptr_x, ptr_y;
+    int16_t ptr_x, ptr_y;
+    int16_t hot_x, hot_y;
 
     /* cursor (with qxl): qxl local renderer -> displaychangelistener */
     QEMUCursor *cursor;