Process and deliver touch events

Does not include pointer emulation handling.
Does include partial ownership handling but not the actual processing of
ownership events.

Note: this commit is a retroactive commit extracted from a series of ~50
commits and may thus appear a bit more complicated than what you'd write out
from scratch.

Pointer processing tree is roughly:
- ProcessOtherEvents
  - ProcessTouchEvents
    - DeliverTouchEvents
      - DeliverTouchBeginEvent|DeliverTouchEndEvent|...
        - DeliverOneTouchEvent

Also hooks up the event history playing to the right function now.

Co-authored-by: Daniel Stone <daniel@fooishbar.org>
Co-authored-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Chase Douglas <chase.douglas@canonical.com>
Reviewed-by: Chase Douglas <chase.douglas@canonical.com>

dix/touch.c

@@ -496,7 +496,8 @@ TouchEventHistoryReplay(TouchPointInfoPtr ti, DeviceIntPtr dev, XID resource)
         flags |= TOUCH_POINTER_EMULATED;
     /* send fake begin event to next owner */
     nev = GetTouchEvents(tel, dev, ti->client_id, XI_TouchBegin, flags, mask);
-    /* FIXME: deliver the event */
+    for (i = 0; i < nev; i++)
+        DeliverTouchEvents(dev, ti, tel + i, resource);
 
     valuator_mask_free(&mask);
     FreeEventList(tel, GetMaximumEventsNum());
@@ -506,7 +507,7 @@ TouchEventHistoryReplay(TouchPointInfoPtr ti, DeviceIntPtr dev, XID resource)
     {
         DeviceEvent *ev = &ti->history[i];
         ev->flags |= TOUCH_REPLAYING;
-        /* FIXME: deliver the event */
+        DeliverTouchEvents(dev, ti, (InternalEvent*)ev, resource);
     }
 }