From 5388423eb05daefcc71067b6ab96b6e57c44ef5c Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter@cs.unisa.edu.au>
Date: Thu, 16 Nov 2006 20:43:27 +1030
Subject: [PATCH] mieq:  EQ processing handles MP devices

global: MPX define added to xorg-server.h.in

xfree86/common: small fix to avoid byte overflow
---
 Changelog                      | 12 ++++++++++++
 hw/xfree86/common/xf86Xinput.c |  5 ++++-
 include/xorg-server.h.in       |  3 +++
 mi/mieq.c                      | 26 +++++++++++++++++++++++++-
 4 files changed, 44 insertions(+), 2 deletions(-)

diff --git a/Changelog b/Changelog
index 3b5e9add3..87501fb3a 100644
--- a/Changelog
+++ b/Changelog
@@ -37,3 +37,15 @@ Files:
         hw/xfree86/common/xf86Xinput.c
         include/inputstr.h
         mi/mieq.c
+
+
+mieq:  EQ processing handles MP devices 
+
+global: MPX define added to xorg-server.h.in
+
+xfree86/common: small fix to avoid byte overflow
+
+Files:
+        mi/mieq.c
+        hw/xfree86/common/xf86Xinput.c
+        include/xserver-config.h.in
diff --git a/hw/xfree86/common/xf86Xinput.c b/hw/xfree86/common/xf86Xinput.c
index 888ad4235..2cb1441db 100644
--- a/hw/xfree86/common/xf86Xinput.c
+++ b/hw/xfree86/common/xf86Xinput.c
@@ -215,7 +215,10 @@ xf86ActivateDevice(LocalDevicePtr local)
 
         dev->coreEvents = local->flags & XI86_ALWAYS_CORE;
 #ifdef MPX
-        dev->isMPDev = local->flags & XI86_MP_DEVICE;
+        if (local->flags & XI86_MP_DEVICE)
+            dev->isMPDev = TRUE;
+        else
+            dev->isMPDev = FALSE;
 #endif
         RegisterOtherDevice(dev);
 
diff --git a/include/xorg-server.h.in b/include/xorg-server.h.in
index 48196d8b6..c58e2b39a 100644
--- a/include/xorg-server.h.in
+++ b/include/xorg-server.h.in
@@ -142,6 +142,9 @@
 /* Support X Input extension */
 #undef XINPUT
 
+/* Support MPX multipointer extension */
+#undef MPX
+
 /* Build XKB */
 #undef XKB
 
diff --git a/mi/mieq.c b/mi/mieq.c
index b901fbcd6..d19933520 100644
--- a/mi/mieq.c
+++ b/mi/mieq.c
@@ -24,6 +24,15 @@ in this Software without prior written authorization from The Open Group.
  *
  * Author:  Keith Packard, MIT X Consortium
  */
+#ifdef MPX
+ /* 
+  * MPX additions:
+  * Copyright © 2006 Peter Hutterer
+  * License see above.
+  * Author: Peter Hutterer <peter@cs.unisa.edu.au>
+  *
+  */
+#endif
 
 /*
  * mieq.c
@@ -218,13 +227,28 @@ mieqProcessInputEvents()
             else if (e->event[0].u.u.type == MotionNotify ||
                      e->event[0].u.u.type == ButtonPress ||
                      e->event[0].u.u.type == ButtonRelease) {
-                SwitchCorePointer(e->pDev);
+#ifdef MPX
+                if (!e->pDev->isMPDev)
+#endif
+                    SwitchCorePointer(e->pDev);
                 dev = inputInfo.pointer;
+
             }
             else {
                 dev = e->pDev;
             }
 
+#ifdef MPX
+            /* MPX devices send both core and Xi events. Depending on what
+             * event we have, dev is set to either the core pointer or the
+             * device. This gives us the right processing function but we need
+             * to pass the right device in too.
+             * Any device that is not a MP device is processed as usual.
+             */
+            if (e->pDev->isMPDev)
+                dev->public.processInputProc(e->event, e->pDev, e->nevents);
+            else
+#endif
             dev->public.processInputProc(e->event, dev, e->nevents);
         }
     }