include: add a bunch of flags for GetTouchEvent processing

TOUCH_CLIENT_ID is set if the touch was generated from a client ID instead
of a DDX/driver touch ID. i.e. submitted by the dix.

TOUCH_END is a special flag that's required to force the touch to end.
Since the protocol with grab replaying and pointer emulation is rather
complex, it's quite hard to know otherwise when a touch sequence should
really die.

The others do what it says on the imaginary box.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Chase Douglas <chase.douglas@canonical.com>

include/input.h

@@ -71,6 +71,15 @@ SOFTWARE.
 #define POINTER_NORAW		(1 << 5)	/* Don't generate RawEvents */
 #define POINTER_EMULATED	(1 << 6)	/* Event was emulated from another event */
 
+/* GetTouchEvent flags */
+#define TOUCH_ACCEPT            (1 << 0)
+#define TOUCH_REJECT            (1 << 1)
+#define TOUCH_PENDING_END       (1 << 2)
+#define TOUCH_CLIENT_ID         (1 << 3)        /* touch ID is the client-visible id */
+#define TOUCH_REPLAYING         (1 << 4)        /* event is being replayed */
+#define TOUCH_POINTER_EMULATED  (1 << 5)        /* touch event may be pointer emulated */
+#define TOUCH_END               (1 << 6)        /* really end this touch now */
+
 /*int constants for pointer acceleration schemes*/
 #define PtrAccelNoOp            0
 #define PtrAccelPredictable     1