initial state (xorg-server 1.10.2)

1 files changed, 1312 insertions, 0 deletions

diff --git a/Xi/extinit.c b/Xi/extinit.c
new file mode 100644
index 0000000..7f09dfe
--- /dev/null
+++ b/Xi/extinit.c
@@ -0,0 +1,1312 @@
+/************************************************************
+
+Copyright 1989, 1998  The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+Copyright 1989 by Hewlett-Packard Company, Palo Alto, California.
+
+			All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of Hewlett-Packard not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+********************************************************/
+
+/********************************************************************
+ *
+ *  Dispatch routines and initialization routines for the X input extension.
+ *
+ */
+#define ARRAY_SIZE(_a)        (sizeof((_a)) / sizeof((_a)[0]))
+
+#define	 NUMTYPES 15
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "inputstr.h"
+#include "gcstruct.h"	/* pointer for extnsionst.h */
+#include "extnsionst.h"	/* extension entry   */
+#include <X11/extensions/XI.h>
+#include <X11/extensions/XIproto.h>
+#include <X11/extensions/XI2proto.h>
+#include <X11/extensions/geproto.h>
+#include "geext.h" /* extension interfaces for ge */
+
+#include "dixevents.h"
+#include "exevents.h"
+#include "extinit.h"
+#include "exglobals.h"
+#include "swaprep.h"
+#include "privates.h"
+#include "protocol-versions.h"
+
+/* modules local to Xi */
+#include "allowev.h"
+#include "chgdctl.h"
+#include "chgfctl.h"
+#include "chgkbd.h"
+#include "chgprop.h"
+#include "chgptr.h"
+#include "closedev.h"
+#include "devbell.h"
+#include "getbmap.h"
+#include "getbmap.h"
+#include "getdctl.h"
+#include "getfctl.h"
+#include "getfocus.h"
+#include "getkmap.h"
+#include "getmmap.h"
+#include "getprop.h"
+#include "getselev.h"
+#include "getvers.h"
+#include "getvers.h"
+#include "grabdev.h"
+#include "grabdevb.h"
+#include "grabdevk.h"
+#include "gtmotion.h"
+#include "listdev.h"
+#include "opendev.h"
+#include "queryst.h"
+#include "selectev.h"
+#include "sendexev.h"
+#include "chgkmap.h"
+#include "setbmap.h"
+#include "setdval.h"
+#include "setfocus.h"
+#include "setmmap.h"
+#include "setmode.h"
+#include "ungrdev.h"
+#include "ungrdevb.h"
+#include "ungrdevk.h"
+#include "xiallowev.h"
+#include "xiselectev.h"
+#include "xigrabdev.h"
+#include "xipassivegrab.h"
+#include "xisetdevfocus.h"
+#include "xiproperty.h"
+#include "xichangecursor.h"
+#include "xichangehierarchy.h"
+#include "xigetclientpointer.h"
+#include "xiquerydevice.h"
+#include "xiquerypointer.h"
+#include "xiqueryversion.h"
+#include "xisetclientpointer.h"
+#include "xiwarppointer.h"
+
+
+/* Masks for XI events have to be aligned with core event (partially anyway).
+ * If DeviceButtonMotionMask is != ButtonMotionMask, event delivery
+ * breaks down. The device needs the dev->button->motionMask. If DBMM is
+ * the same as BMM, we can ensure that both core and device events can be
+ * delivered, without the need for extra structures in the DeviceIntRec. */
+const Mask DeviceKeyPressMask             = KeyPressMask;
+const Mask DeviceKeyReleaseMask           = KeyReleaseMask;
+const Mask DeviceButtonPressMask          = ButtonPressMask;
+const Mask DeviceButtonReleaseMask        = ButtonReleaseMask;
+const Mask DeviceProximityMask            = (1L << 4);
+const Mask DeviceStateNotifyMask          = (1L << 5);
+const Mask DevicePointerMotionMask        = PointerMotionMask;
+const Mask DevicePointerMotionHintMask    = PointerMotionHintMask;
+const Mask DeviceButton1MotionMask        = Button1MotionMask;
+const Mask DeviceButton2MotionMask        = Button2MotionMask;
+const Mask DeviceButton3MotionMask        = Button3MotionMask;
+const Mask DeviceButton4MotionMask        = Button4MotionMask;
+const Mask DeviceButton5MotionMask        = Button5MotionMask;
+const Mask DeviceButtonMotionMask         = ButtonMotionMask;
+const Mask DeviceFocusChangeMask          = (1L << 14);
+const Mask DeviceMappingNotifyMask        = (1L << 15);
+const Mask ChangeDeviceNotifyMask         = (1L << 16);
+const Mask DeviceButtonGrabMask           = (1L << 17);
+const Mask DeviceOwnerGrabButtonMask      = (1L << 17);
+const Mask DevicePresenceNotifyMask       = (1L << 18);
+const Mask DeviceEnterWindowMask          = (1L << 18);
+const Mask DeviceLeaveWindowMask          = (1L << 19);
+const Mask DevicePropertyNotifyMask       = (1L << 20);
+const Mask XIAllMasks                     = (1L << 21) - 1;
+
+int ExtEventIndex;
+Mask ExtExclusiveMasks[EMASKSIZE];
+
+static struct dev_type
+{
+    Atom type;
+    char *name;
+} dev_type[] = {
+    {
+    0, XI_KEYBOARD}, {
+    0, XI_MOUSE}, {
+    0, XI_TABLET}, {
+    0, XI_TOUCHSCREEN}, {
+    0, XI_TOUCHPAD}, {
+    0, XI_BARCODE}, {
+    0, XI_BUTTONBOX}, {
+    0, XI_KNOB_BOX}, {
+    0, XI_ONE_KNOB}, {
+    0, XI_NINE_KNOB}, {
+    0, XI_TRACKBALL}, {
+    0, XI_QUADRATURE}, {
+    0, XI_ID_MODULE}, {
+    0, XI_SPACEBALL}, {
+    0, XI_DATAGLOVE}, {
+    0, XI_EYETRACKER}, {
+    0, XI_CURSORKEYS}, {
+0, XI_FOOTMOUSE}};
+
+CARD8 event_base[numInputClasses];
+XExtEventInfo EventInfo[32];
+
+static DeviceIntRec xi_all_devices;
+static DeviceIntRec xi_all_master_devices;
+
+/**
+ * Dispatch vector. Functions defined in here will be called when the matching
+ * request arrives.
+ */
+static int (*ProcIVector[])(ClientPtr) = {
+        NULL,                                   /*  0 */
+	ProcXGetExtensionVersion,               /*  1 */
+	ProcXListInputDevices,                  /*  2 */
+	ProcXOpenDevice,                        /*  3 */
+	ProcXCloseDevice,                       /*  4 */
+	ProcXSetDeviceMode,                     /*  5 */
+	ProcXSelectExtensionEvent,              /*  6 */
+	ProcXGetSelectedExtensionEvents,        /*  7 */
+	ProcXChangeDeviceDontPropagateList,     /*  8 */
+	ProcXGetDeviceDontPropagateList,        /*  9 */
+	ProcXGetDeviceMotionEvents,             /* 10 */
+	ProcXChangeKeyboardDevice,              /* 11 */
+	ProcXChangePointerDevice,               /* 12 */
+	ProcXGrabDevice,                        /* 13 */
+	ProcXUngrabDevice,                      /* 14 */
+	ProcXGrabDeviceKey,                     /* 15 */
+	ProcXUngrabDeviceKey,                   /* 16 */
+	ProcXGrabDeviceButton,                  /* 17 */
+	ProcXUngrabDeviceButton,                /* 18 */
+	ProcXAllowDeviceEvents,                 /* 19 */
+	ProcXGetDeviceFocus,                    /* 20 */
+	ProcXSetDeviceFocus,                    /* 21 */
+	ProcXGetFeedbackControl,                /* 22 */
+	ProcXChangeFeedbackControl,             /* 23 */
+	ProcXGetDeviceKeyMapping,               /* 24 */
+	ProcXChangeDeviceKeyMapping,            /* 25 */
+	ProcXGetDeviceModifierMapping,          /* 26 */
+	ProcXSetDeviceModifierMapping,          /* 27 */
+	ProcXGetDeviceButtonMapping,            /* 28 */
+	ProcXSetDeviceButtonMapping,            /* 29 */
+	ProcXQueryDeviceState,                  /* 30 */
+	ProcXSendExtensionEvent,                /* 31 */
+	ProcXDeviceBell,                        /* 32 */
+	ProcXSetDeviceValuators,                /* 33 */
+	ProcXGetDeviceControl,                  /* 34 */
+	ProcXChangeDeviceControl,               /* 35 */
+        /* XI 1.5 */
+        ProcXListDeviceProperties,              /* 36 */
+        ProcXChangeDeviceProperty,              /* 37 */
+        ProcXDeleteDeviceProperty,              /* 38 */
+        ProcXGetDeviceProperty,                 /* 39 */
+        /* XI 2 */
+        ProcXIQueryPointer,                     /* 40 */
+        ProcXIWarpPointer,                      /* 41 */
+        ProcXIChangeCursor,                     /* 42 */
+        ProcXIChangeHierarchy,                  /* 43 */
+        ProcXISetClientPointer,                 /* 44 */
+        ProcXIGetClientPointer,                 /* 45 */
+        ProcXISelectEvents,                     /* 46 */
+        ProcXIQueryVersion,                     /* 47 */
+        ProcXIQueryDevice,                      /* 48 */
+        ProcXISetFocus,                         /* 49 */
+        ProcXIGetFocus,                         /* 50 */
+        ProcXIGrabDevice,                       /* 51 */
+        ProcXIUngrabDevice,                     /* 52 */
+        ProcXIAllowEvents,                      /* 53 */
+        ProcXIPassiveGrabDevice,                /* 54 */
+        ProcXIPassiveUngrabDevice,              /* 55 */
+        ProcXIListProperties,                   /* 56 */
+        ProcXIChangeProperty,                   /* 57 */
+        ProcXIDeleteProperty,                   /* 58 */
+        ProcXIGetProperty,                      /* 59 */
+        ProcXIGetSelectedEvents                 /* 60 */
+};
+
+/* For swapped clients */
+static int (*SProcIVector[])(ClientPtr) = {
+        NULL,                                    /*  0 */
+	SProcXGetExtensionVersion,               /*  1 */
+	SProcXListInputDevices,                  /*  2 */
+	SProcXOpenDevice,                        /*  3 */
+	SProcXCloseDevice,                       /*  4 */
+	SProcXSetDeviceMode,                     /*  5 */
+	SProcXSelectExtensionEvent,              /*  6 */
+	SProcXGetSelectedExtensionEvents,        /*  7 */
+	SProcXChangeDeviceDontPropagateList,     /*  8 */
+	SProcXGetDeviceDontPropagateList,        /*  9 */
+	SProcXGetDeviceMotionEvents,             /* 10 */
+	SProcXChangeKeyboardDevice,              /* 11 */
+	SProcXChangePointerDevice,               /* 12 */
+	SProcXGrabDevice,                        /* 13 */
+	SProcXUngrabDevice,                      /* 14 */
+	SProcXGrabDeviceKey,                     /* 15 */
+	SProcXUngrabDeviceKey,                   /* 16 */
+	SProcXGrabDeviceButton,                  /* 17 */
+	SProcXUngrabDeviceButton,                /* 18 */
+	SProcXAllowDeviceEvents,                 /* 19 */
+	SProcXGetDeviceFocus,                    /* 20 */
+	SProcXSetDeviceFocus,                    /* 21 */
+	SProcXGetFeedbackControl,                /* 22 */
+	SProcXChangeFeedbackControl,             /* 23 */
+	SProcXGetDeviceKeyMapping,               /* 24 */
+	SProcXChangeDeviceKeyMapping,            /* 25 */
+	SProcXGetDeviceModifierMapping,          /* 26 */
+	SProcXSetDeviceModifierMapping,          /* 27 */
+	SProcXGetDeviceButtonMapping,            /* 28 */
+	SProcXSetDeviceButtonMapping,            /* 29 */
+	SProcXQueryDeviceState,                  /* 30 */
+	SProcXSendExtensionEvent,                /* 31 */
+	SProcXDeviceBell,                        /* 32 */
+	SProcXSetDeviceValuators,                /* 33 */
+	SProcXGetDeviceControl,                  /* 34 */
+	SProcXChangeDeviceControl,               /* 35 */
+        SProcXListDeviceProperties,              /* 36 */
+        SProcXChangeDeviceProperty,              /* 37 */
+        SProcXDeleteDeviceProperty,              /* 38 */
+        SProcXGetDeviceProperty,                 /* 39 */
+        SProcXIQueryPointer,                     /* 40 */
+        SProcXIWarpPointer,                      /* 41 */
+        SProcXIChangeCursor,                     /* 42 */
+        SProcXIChangeHierarchy,                  /* 43 */
+        SProcXISetClientPointer,                 /* 44 */
+        SProcXIGetClientPointer,                 /* 45 */
+        SProcXISelectEvents,                     /* 46 */
+        SProcXIQueryVersion,                     /* 47 */
+        SProcXIQueryDevice,                      /* 48 */
+        SProcXISetFocus,                         /* 49 */
+        SProcXIGetFocus,                         /* 50 */
+        SProcXIGrabDevice,                       /* 51 */
+        SProcXIUngrabDevice,                     /* 52 */
+        SProcXIAllowEvents,                      /* 53 */
+        SProcXIPassiveGrabDevice,                /* 54 */
+        SProcXIPassiveUngrabDevice,              /* 55 */
+        SProcXIListProperties,                   /* 56 */
+        SProcXIChangeProperty,                   /* 57 */
+        SProcXIDeleteProperty,                   /* 58 */
+        SProcXIGetProperty,                      /* 59 */
+        SProcXIGetSelectedEvents                 /* 60 */
+};
+
+/*****************************************************************
+ *
+ * Globals referenced elsewhere in the server.
+ *
+ */
+
+int IReqCode = 0;
+int IEventBase = 0;
+int BadDevice = 0;
+static int BadEvent = 1;
+int BadMode = 2;
+int DeviceBusy = 3;
+int BadClass = 4;
+
+int DeviceValuator;
+int DeviceKeyPress;
+int DeviceKeyRelease;
+int DeviceButtonPress;
+int DeviceButtonRelease;
+int DeviceMotionNotify;
+int DeviceFocusIn;
+int DeviceFocusOut;
+int ProximityIn;
+int ProximityOut;
+int DeviceStateNotify;
+int DeviceKeyStateNotify;
+int DeviceButtonStateNotify;
+int DeviceMappingNotify;
+int ChangeDeviceNotify;
+int DevicePresenceNotify;
+int DevicePropertyNotify;
+
+int RT_INPUTCLIENT;
+
+/*****************************************************************
+ *
+ * Externs defined elsewhere in the X server.
+ *
+ */
+
+extern XExtensionVersion XIVersion;
+
+
+Mask PropagateMask[MAXDEVICES];
+
+/*****************************************************************
+ *
+ * Versioning support
+ *
+ */
+
+DevPrivateKeyRec XIClientPrivateKeyRec;
+
+/*****************************************************************
+ *
+ * Declarations of local routines.
+ *
+ */
+
+static void
+XIClientCallback(CallbackListPtr        *list,
+                 pointer                closure,
+                 pointer                data)
+{
+    NewClientInfoRec *clientinfo = (NewClientInfoRec*)data;
+    ClientPtr pClient = clientinfo->client;
+    XIClientPtr pXIClient;
+
+    pXIClient = dixLookupPrivate(&pClient->devPrivates, XIClientPrivateKey);
+    pXIClient->major_version = 0;
+    pXIClient->minor_version = 0;
+}
+
+/*************************************************************************
+ *
+ * ProcIDispatch - main dispatch routine for requests to this extension.
+ * This routine is used if server and client have the same byte ordering.
+ *
+ */
+
+static int
+ProcIDispatch(ClientPtr client)
+{
+    REQUEST(xReq);
+    if (stuff->data > ARRAY_SIZE(ProcIVector) || !ProcIVector[stuff->data])
+        return BadRequest;
+
+    return (*ProcIVector[stuff->data])(client);
+}
+
+/*******************************************************************************
+ *
+ * SProcXDispatch
+ *
+ * Main swapped dispatch routine for requests to this extension.
+ * This routine is used if server and client do not have the same byte ordering.
+ *
+ */
+
+static int
+SProcIDispatch(ClientPtr client)
+{
+    REQUEST(xReq);
+    if (stuff->data > ARRAY_SIZE(SProcIVector) || !SProcIVector[stuff->data])
+        return BadRequest;
+
+    return (*SProcIVector[stuff->data])(client);
+}
+
+/**********************************************************************
+ *
+ * SReplyIDispatch
+ * Swap any replies defined in this extension.
+ *
+ */
+
+static void
+SReplyIDispatch(ClientPtr client, int len, xGrabDeviceReply * rep)
+					/* All we look at is the type field */
+{	/* This is common to all replies    */
+    if (rep->RepType == X_GetExtensionVersion)
+	SRepXGetExtensionVersion(client, len,
+				 (xGetExtensionVersionReply *) rep);
+    else if (rep->RepType == X_ListInputDevices)
+	SRepXListInputDevices(client, len, (xListInputDevicesReply *) rep);
+    else if (rep->RepType == X_OpenDevice)
+	SRepXOpenDevice(client, len, (xOpenDeviceReply *) rep);
+    else if (rep->RepType == X_SetDeviceMode)
+	SRepXSetDeviceMode(client, len, (xSetDeviceModeReply *) rep);
+    else if (rep->RepType == X_GetSelectedExtensionEvents)
+	SRepXGetSelectedExtensionEvents(client, len,
+					(xGetSelectedExtensionEventsReply *)
+					rep);
+    else if (rep->RepType == X_GetDeviceDontPropagateList)
+	SRepXGetDeviceDontPropagateList(client, len,
+					(xGetDeviceDontPropagateListReply *)
+					rep);
+    else if (rep->RepType == X_GetDeviceMotionEvents)
+	SRepXGetDeviceMotionEvents(client, len,
+				   (xGetDeviceMotionEventsReply *) rep);
+    else if (rep->RepType == X_GrabDevice)
+	SRepXGrabDevice(client, len, (xGrabDeviceReply *) rep);
+    else if (rep->RepType == X_GetDeviceFocus)
+	SRepXGetDeviceFocus(client, len, (xGetDeviceFocusReply *) rep);
+    else if (rep->RepType == X_GetFeedbackControl)
+	SRepXGetFeedbackControl(client, len, (xGetFeedbackControlReply *) rep);
+    else if (rep->RepType == X_GetDeviceKeyMapping)
+	SRepXGetDeviceKeyMapping(client, len,
+				 (xGetDeviceKeyMappingReply *) rep);
+    else if (rep->RepType == X_GetDeviceModifierMapping)
+	SRepXGetDeviceModifierMapping(client, len,
+				      (xGetDeviceModifierMappingReply *) rep);
+    else if (rep->RepType == X_SetDeviceModifierMapping)
+	SRepXSetDeviceModifierMapping(client, len,
+				      (xSetDeviceModifierMappingReply *) rep);
+    else if (rep->RepType == X_GetDeviceButtonMapping)
+	SRepXGetDeviceButtonMapping(client, len,
+				    (xGetDeviceButtonMappingReply *) rep);
+    else if (rep->RepType == X_SetDeviceButtonMapping)
+	SRepXSetDeviceButtonMapping(client, len,
+				    (xSetDeviceButtonMappingReply *) rep);
+    else if (rep->RepType == X_QueryDeviceState)
+	SRepXQueryDeviceState(client, len, (xQueryDeviceStateReply *) rep);
+    else if (rep->RepType == X_SetDeviceValuators)
+	SRepXSetDeviceValuators(client, len, (xSetDeviceValuatorsReply *) rep);
+    else if (rep->RepType == X_GetDeviceControl)
+	SRepXGetDeviceControl(client, len, (xGetDeviceControlReply *) rep);
+    else if (rep->RepType == X_ChangeDeviceControl)
+	SRepXChangeDeviceControl(client, len,
+				 (xChangeDeviceControlReply *) rep);
+    else if (rep->RepType == X_ListDeviceProperties)
+        SRepXListDeviceProperties(client, len, (xListDevicePropertiesReply*)rep);
+    else if (rep->RepType == X_GetDeviceProperty)
+	SRepXGetDeviceProperty(client, len, (xGetDevicePropertyReply *) rep);
+    else if (rep->RepType == X_XIQueryPointer)
+	SRepXIQueryPointer(client, len, (xXIQueryPointerReply *) rep);
+    else if (rep->RepType == X_XIGetClientPointer)
+        SRepXIGetClientPointer(client, len, (xXIGetClientPointerReply*) rep);
+    else if (rep->RepType == X_XIQueryVersion)
+        SRepXIQueryVersion(client, len, (xXIQueryVersionReply*)rep);
+    else if (rep->RepType == X_XIQueryDevice)
+        SRepXIQueryDevice(client, len, (xXIQueryDeviceReply*)rep);
+    else if (rep->RepType == X_XIGrabDevice)
+	SRepXIGrabDevice(client, len, (xXIGrabDeviceReply *) rep);
+    else if (rep->RepType == X_XIPassiveGrabDevice)
+	SRepXIPassiveGrabDevice(client, len, (xXIPassiveGrabDeviceReply *) rep);
+    else if (rep->RepType == X_XIListProperties)
+	SRepXIListProperties(client, len, (xXIListPropertiesReply *) rep);
+    else if (rep->RepType == X_XIGetProperty)
+	SRepXIGetProperty(client, len, (xXIGetPropertyReply *) rep);
+    else if (rep->RepType == X_XIGetSelectedEvents)
+	SRepXIGetSelectedEvents(client, len, (xXIGetSelectedEventsReply *) rep);
+    else if (rep->RepType == X_XIGetFocus)
+	SRepXIGetFocus(client, len, (xXIGetFocusReply *) rep);
+    else {
+	FatalError("XINPUT confused sending swapped reply");
+    }
+}
+
+/************************************************************************
+ *
+ * This function swaps the DeviceValuator event.
+ *
+ */
+
+static void
+SEventDeviceValuator(deviceValuator * from, deviceValuator * to)
+{
+    char n;
+    int i;
+    INT32 *ip B32;
+
+    *to = *from;
+    swaps(&to->sequenceNumber, n);
+    swaps(&to->device_state, n);
+    ip = &to->valuator0;
+    for (i = 0; i < 6; i++) {
+	swapl((ip + i), n);	/* macro - braces are required      */
+    }
+}
+
+static void
+SEventFocus(deviceFocus * from, deviceFocus * to)
+{
+    char n;
+
+    *to = *from;
+    swaps(&to->sequenceNumber, n);
+    swapl(&to->time, n);
+    swapl(&to->window, n);
+}
+
+static void
+SDeviceStateNotifyEvent(deviceStateNotify * from, deviceStateNotify * to)
+{
+    int i;
+    char n;
+    INT32 *ip B32;
+
+    *to = *from;
+    swaps(&to->sequenceNumber, n);
+    swapl(&to->time, n);
+    ip = &to->valuator0;
+    for (i = 0; i < 3; i++) {
+	swapl((ip + i), n);	/* macro - braces are required      */
+    }
+}
+
+static void
+SDeviceKeyStateNotifyEvent(deviceKeyStateNotify * from,
+			   deviceKeyStateNotify * to)
+{
+    char n;
+
+    *to = *from;
+    swaps(&to->sequenceNumber, n);
+}
+
+static void
+SDeviceButtonStateNotifyEvent(deviceButtonStateNotify * from,
+			      deviceButtonStateNotify * to)
+{
+    char n;
+
+    *to = *from;
+    swaps(&to->sequenceNumber, n);
+}
+
+static void
+SChangeDeviceNotifyEvent(changeDeviceNotify * from, changeDeviceNotify * to)
+{
+    char n;
+
+    *to = *from;
+    swaps(&to->sequenceNumber, n);
+    swapl(&to->time, n);
+}
+
+static void
+SDeviceMappingNotifyEvent(deviceMappingNotify * from, deviceMappingNotify * to)
+{
+    char n;
+
+    *to = *from;
+    swaps(&to->sequenceNumber, n);
+    swapl(&to->time, n);
+}
+
+static void
+SDevicePresenceNotifyEvent (devicePresenceNotify *from, devicePresenceNotify *to)
+{
+    char n;
+
+    *to = *from;
+    swaps(&to->sequenceNumber,n);
+    swapl(&to->time, n);
+    swaps(&to->control, n);
+}
+
+static void
+SDevicePropertyNotifyEvent (devicePropertyNotify *from, devicePropertyNotify *to)
+{
+    char n;
+
+    *to = *from;
+    swaps(&to->sequenceNumber,n);
+    swapl(&to->time, n);
+    swapl(&to->atom, n);
+}
+
+static void
+SDeviceLeaveNotifyEvent (xXILeaveEvent *from, xXILeaveEvent *to)
+{
+    char n;
+
+    *to = *from;
+    swaps(&to->sequenceNumber,n);
+    swapl(&to->length, n);
+    swaps(&to->evtype, n);
+    swaps(&to->deviceid, n);
+    swapl(&to->time, n);
+    swapl(&to->root, n);
+    swapl(&to->event, n);
+    swapl(&to->child, n);
+    swapl(&to->root_x, n);
+    swapl(&to->root_y, n);
+    swapl(&to->event_x, n);
+    swapl(&to->event_y, n);
+    swaps(&to->sourceid, n);
+    swaps(&to->buttons_len, n);
+    swapl(&to->mods.base_mods, n);
+    swapl(&to->mods.latched_mods, n);
+    swapl(&to->mods.locked_mods, n);
+}
+
+static void
+SDeviceChangedEvent(xXIDeviceChangedEvent* from, xXIDeviceChangedEvent* to)
+{
+    char n;
+    int i, j;
+    xXIAnyInfo *any;
+
+    *to = *from;
+    memcpy(&to[1], &from[1], from->length * 4);
+
+    any = (xXIAnyInfo*)&to[1];
+    for (i = 0; i < to->num_classes; i++)
+    {
+        int length = any->length;
+
+        switch(any->type)
+        {
+            case KeyClass:
+                {
+                    xXIKeyInfo *ki = (xXIKeyInfo*)any;
+                    uint32_t *key = (uint32_t*)&ki[1];
+                    for (j = 0; j < ki->num_keycodes; j++, key++)
+                        swapl(key, n);
+                    swaps(&ki->num_keycodes, n);
+                }
+                break;
+            case ButtonClass:
+                {
+                    xXIButtonInfo *bi = (xXIButtonInfo*)any;
+                    Atom *labels = (Atom*)((char*)bi + sizeof(xXIButtonInfo) +
+                                           pad_to_int32(bits_to_bytes(bi->num_buttons)));
+                    for (j = 0; j < bi->num_buttons; j++)
+                        swapl(&labels[j], n);
+                    swaps(&bi->num_buttons, n);
+                }
+                break;
+            case ValuatorClass:
+                {
+                    xXIValuatorInfo* ai = (xXIValuatorInfo*)any;
+                    swapl(&ai->label, n);
+                    swapl(&ai->min.integral, n);
+                    swapl(&ai->min.frac, n);
+                    swapl(&ai->max.integral, n);
+                    swapl(&ai->max.frac, n);
+                    swapl(&ai->resolution, n);
+                    swaps(&ai->number, n);
+                }
+                break;
+        }
+
+        swaps(&any->type, n);
+        swaps(&any->length, n);
+        swaps(&any->sourceid, n);
+
+        any = (xXIAnyInfo*)((char*)any + length * 4);
+    }
+
+    swaps(&to->sequenceNumber, n);
+    swapl(&to->length, n);
+    swaps(&to->evtype, n);
+    swaps(&to->deviceid, n);
+    swapl(&to->time, n);
+    swaps(&to->num_classes, n);
+    swaps(&to->sourceid, n);
+
+}
+
+static void SDeviceEvent(xXIDeviceEvent *from, xXIDeviceEvent *to)
+{
+    int i;
+    char n;
+    char *ptr;
+    char *vmask;
+
+    memcpy(to, from, sizeof(xEvent) + from->length * 4);
+
+    swaps(&to->sequenceNumber, n);
+    swapl(&to->length, n);
+    swaps(&to->evtype, n);
+    swaps(&to->deviceid, n);
+    swapl(&to->time, n);
+    swapl(&to->detail, n);
+    swapl(&to->root, n);
+    swapl(&to->event, n);
+    swapl(&to->child, n);
+    swapl(&to->root_x, n);
+    swapl(&to->root_y, n);
+    swapl(&to->event_x, n);
+    swapl(&to->event_y, n);
+    swaps(&to->buttons_len, n);
+    swaps(&to->valuators_len, n);
+    swaps(&to->sourceid, n);
+    swapl(&to->mods.base_mods, n);
+    swapl(&to->mods.latched_mods, n);
+    swapl(&to->mods.locked_mods, n);
+    swapl(&to->mods.effective_mods, n);
+    swapl(&to->flags, n);
+
+    ptr = (char*)(&to[1]);
+    ptr += from->buttons_len * 4;
+    vmask = ptr; /* valuator mask */
+    ptr += from->valuators_len * 4;
+    for (i = 0; i < from->valuators_len * 32; i++)
+    {
+        if (BitIsOn(vmask, i))
+        {
+            swapl(((uint32_t*)ptr), n);
+            ptr += 4;
+            swapl(((uint32_t*)ptr), n);
+            ptr += 4;
+        }
+    }
+}
+
+static void SDeviceHierarchyEvent(xXIHierarchyEvent *from,
+                                  xXIHierarchyEvent *to)
+{
+    int i;
+    char n;
+    xXIHierarchyInfo *info;
+
+    *to = *from;
+    memcpy(&to[1], &from[1], from->length * 4);
+    swaps(&to->sequenceNumber, n);
+    swapl(&to->length, n);
+    swaps(&to->evtype, n);
+    swaps(&to->deviceid, n);
+    swapl(&to->time, n);
+    swapl(&to->flags, n);
+    swaps(&to->num_info, n);
+
+    info = (xXIHierarchyInfo*)&to[1];
+    for (i = 0; i< from->num_info; i++)
+    {
+        swaps(&info->deviceid, n);
+        swaps(&info->attachment, n);
+        info++;
+    }
+}
+
+static void SXIPropertyEvent(xXIPropertyEvent *from, xXIPropertyEvent *to)
+{
+    char n;
+
+    *to = *from;
+    swaps(&to->sequenceNumber, n);
+    swapl(&to->length, n);
+    swaps(&to->evtype, n);
+    swaps(&to->deviceid, n);
+    swapl(&to->property, n);
+}
+
+static void SRawEvent(xXIRawEvent *from, xXIRawEvent *to)
+{
+    char n;
+    int i;
+    FP3232 *values;
+    unsigned char *mask;
+
+    memcpy(to, from, sizeof(xEvent) + from->length * 4);
+
+    swaps(&to->sequenceNumber, n);
+    swapl(&to->length, n);
+    swaps(&to->evtype, n);
+    swaps(&to->deviceid, n);
+    swapl(&to->time, n);
+    swapl(&to->detail, n);
+
+
+    mask = (unsigned char*)&to[1];
+    values = (FP3232*)(mask + from->valuators_len * 4);
+
+    for (i = 0; i < from->valuators_len * 4 * 8; i++)
+    {
+        if (BitIsOn(mask, i))
+        {
+            /* for each bit set there are two FP3232 values on the wire, in
+             * the order abcABC for data and data_raw. Here we swap as if
+             * they were in aAbBcC order because it's easier and really
+             * doesn't matter.
+             */
+            swapl(&values->integral, n);
+            swapl(&values->frac, n);
+            values++;
+            swapl(&values->integral, n);
+            swapl(&values->frac, n);
+            values++;
+        }
+    }
+
+    swaps(&to->valuators_len, n);
+}
+
+
+/** Event swapping function for XI2 events. */
+void
+XI2EventSwap(xGenericEvent *from, xGenericEvent *to)
+{
+    switch(from->evtype)
+    {
+        case XI_Enter:
+        case XI_Leave:
+        case XI_FocusIn:
+        case XI_FocusOut:
+            SDeviceLeaveNotifyEvent((xXILeaveEvent*)from, (xXILeaveEvent*)to);
+            break;
+        case XI_DeviceChanged:
+            SDeviceChangedEvent((xXIDeviceChangedEvent*)from,
+                                (xXIDeviceChangedEvent*)to);
+            break;
+        case XI_HierarchyChanged:
+            SDeviceHierarchyEvent((xXIHierarchyEvent*)from, (xXIHierarchyEvent*)to);
+            break;
+        case XI_PropertyEvent:
+            SXIPropertyEvent((xXIPropertyEvent*)from,
+                           (xXIPropertyEvent*)to);
+            break;
+        case XI_Motion:
+        case XI_KeyPress:
+        case XI_KeyRelease:
+        case XI_ButtonPress:
+        case XI_ButtonRelease:
+            SDeviceEvent((xXIDeviceEvent*)from, (xXIDeviceEvent*)to);
+            break;
+        case XI_RawMotion:
+        case XI_RawKeyPress:
+        case XI_RawKeyRelease:
+        case XI_RawButtonPress:
+        case XI_RawButtonRelease:
+            SRawEvent((xXIRawEvent*)from, (xXIRawEvent*)to);
+            break;
+        default:
+            ErrorF("[Xi] Unknown event type to swap. This is a bug.\n");
+            break;
+    }
+}
+
+/**************************************************************************
+ *
+ * Allow the specified event to have its propagation suppressed.
+ * The default is to not allow suppression of propagation.
+ *
+ */
+
+static void
+AllowPropagateSuppress(Mask mask)
+{
+    int i;
+
+    for (i = 0; i < MAXDEVICES; i++)
+	PropagateMask[i] |= mask;
+}
+
+/**************************************************************************
+ *
+ * Record an event mask where there is no unique corresponding event type.
+ * We can't call SetMaskForEvent, since that would clobber the existing
+ * mask for that event.  MotionHint and ButtonMotion are examples.
+ *
+ * Since extension event types will never be less than 64, we can use
+ * 0-63 in the EventInfo array as the "type" to be used to look up this
+ * mask.  This means that the corresponding macros such as
+ * DevicePointerMotionHint must have access to the same constants.
+ *
+ */
+
+static void
+SetEventInfo(Mask mask, int constant)
+{
+    EventInfo[ExtEventIndex].mask = mask;
+    EventInfo[ExtEventIndex++].type = constant;
+}
+
+/**************************************************************************
+ *
+ * Allow the specified event to be restricted to being selected by one
+ * client at a time.
+ * The default is to allow more than one client to select the event.
+ *
+ */
+
+static void
+SetExclusiveAccess(Mask mask)
+{
+    int i;
+
+    for (i = 0; i < MAXDEVICES; i++)
+	ExtExclusiveMasks[i] |= mask;
+}
+
+/**************************************************************************
+ *
+ * Assign the specified mask to the specified event.
+ *
+ */
+
+static void
+SetMaskForExtEvent(Mask mask, int event)
+{
+    int i;
+
+    EventInfo[ExtEventIndex].mask = mask;
+    EventInfo[ExtEventIndex++].type = event;
+
+    if ((event < LASTEvent) || (event >= 128))
+	FatalError("MaskForExtensionEvent: bogus event number");
+
+    for (i = 0; i < MAXDEVICES; i++)
+        SetMaskForEvent(i, mask, event);
+}
+
+/************************************************************************
+ *
+ * This function sets up extension event types and masks.
+ *
+ */
+
+static void
+FixExtensionEvents(ExtensionEntry * extEntry)
+{
+    DeviceValuator = extEntry->eventBase;
+    DeviceKeyPress = DeviceValuator + 1;
+    DeviceKeyRelease = DeviceKeyPress + 1;
+    DeviceButtonPress = DeviceKeyRelease + 1;
+    DeviceButtonRelease = DeviceButtonPress + 1;
+    DeviceMotionNotify = DeviceButtonRelease + 1;
+    DeviceFocusIn = DeviceMotionNotify + 1;
+    DeviceFocusOut = DeviceFocusIn + 1;
+    ProximityIn = DeviceFocusOut + 1;
+    ProximityOut = ProximityIn + 1;
+    DeviceStateNotify = ProximityOut + 1;
+    DeviceMappingNotify = DeviceStateNotify + 1;
+    ChangeDeviceNotify = DeviceMappingNotify + 1;
+    DeviceKeyStateNotify = ChangeDeviceNotify + 1;
+    DeviceButtonStateNotify = DeviceKeyStateNotify + 1;
+    DevicePresenceNotify = DeviceButtonStateNotify + 1;
+    DevicePropertyNotify = DevicePresenceNotify + 1;
+
+    event_base[KeyClass] = DeviceKeyPress;
+    event_base[ButtonClass] = DeviceButtonPress;
+    event_base[ValuatorClass] = DeviceMotionNotify;
+    event_base[ProximityClass] = ProximityIn;
+    event_base[FocusClass] = DeviceFocusIn;
+    event_base[OtherClass] = DeviceStateNotify;
+
+    BadDevice += extEntry->errorBase;
+    BadEvent += extEntry->errorBase;
+    BadMode += extEntry->errorBase;
+    DeviceBusy += extEntry->errorBase;
+    BadClass += extEntry->errorBase;
+
+    SetMaskForExtEvent(DeviceKeyPressMask, DeviceKeyPress);
+    AllowPropagateSuppress(DeviceKeyPressMask);
+    SetCriticalEvent(DeviceKeyPress);
+
+    SetMaskForExtEvent(DeviceKeyReleaseMask, DeviceKeyRelease);
+    AllowPropagateSuppress(DeviceKeyReleaseMask);
+    SetCriticalEvent(DeviceKeyRelease);
+
+    SetMaskForExtEvent(DeviceButtonPressMask, DeviceButtonPress);
+    AllowPropagateSuppress(DeviceButtonPressMask);
+    SetCriticalEvent(DeviceButtonPress);
+
+    SetMaskForExtEvent(DeviceButtonReleaseMask, DeviceButtonRelease);
+    AllowPropagateSuppress(DeviceButtonReleaseMask);
+    SetCriticalEvent(DeviceButtonRelease);
+
+    SetMaskForExtEvent(DeviceProximityMask, ProximityIn);
+    SetMaskForExtEvent(DeviceProximityMask, ProximityOut);
+
+    SetMaskForExtEvent(DeviceStateNotifyMask, DeviceStateNotify);
+
+    SetMaskForExtEvent(DevicePointerMotionMask, DeviceMotionNotify);
+    AllowPropagateSuppress(DevicePointerMotionMask);
+    SetCriticalEvent(DeviceMotionNotify);
+
+    SetEventInfo(DevicePointerMotionHintMask, _devicePointerMotionHint);
+    SetEventInfo(DeviceButton1MotionMask, _deviceButton1Motion);
+    SetEventInfo(DeviceButton2MotionMask, _deviceButton2Motion);
+    SetEventInfo(DeviceButton3MotionMask, _deviceButton3Motion);
+    SetEventInfo(DeviceButton4MotionMask, _deviceButton4Motion);
+    SetEventInfo(DeviceButton5MotionMask, _deviceButton5Motion);
+    SetEventInfo(DeviceButtonMotionMask, _deviceButtonMotion);
+
+    SetMaskForExtEvent(DeviceFocusChangeMask, DeviceFocusIn);
+    SetMaskForExtEvent(DeviceFocusChangeMask, DeviceFocusOut);
+
+    SetMaskForExtEvent(DeviceMappingNotifyMask, DeviceMappingNotify);
+    SetMaskForExtEvent(ChangeDeviceNotifyMask, ChangeDeviceNotify);
+
+    SetEventInfo(DeviceButtonGrabMask, _deviceButtonGrab);
+    SetExclusiveAccess(DeviceButtonGrabMask);
+
+    SetEventInfo(DeviceOwnerGrabButtonMask, _deviceOwnerGrabButton);
+    SetEventInfo(DevicePresenceNotifyMask, _devicePresence);
+    SetMaskForExtEvent(DevicePropertyNotifyMask, DevicePropertyNotify);
+
+    SetEventInfo(0, _noExtensionEvent);
+}
+
+/************************************************************************
+ *
+ * This function restores extension event types and masks to their
+ * initial state.
+ *
+ */
+
+static void
+RestoreExtensionEvents(void)
+{
+    int i, j;
+
+    IReqCode = 0;
+    IEventBase = 0;
+
+    for (i = 0; i < ExtEventIndex - 1; i++) {
+	if ((EventInfo[i].type >= LASTEvent) && (EventInfo[i].type < 128))
+        {
+            for (j = 0; j < MAXDEVICES; j++)
+                SetMaskForEvent(j, 0, EventInfo[i].type);
+        }
+	EventInfo[i].mask = 0;
+	EventInfo[i].type = 0;
+    }
+    ExtEventIndex = 0;
+    DeviceValuator = 0;
+    DeviceKeyPress = 1;
+    DeviceKeyRelease = 2;
+    DeviceButtonPress = 3;
+    DeviceButtonRelease = 4;
+    DeviceMotionNotify = 5;
+    DeviceFocusIn = 6;
+    DeviceFocusOut = 7;
+    ProximityIn = 8;
+    ProximityOut = 9;
+    DeviceStateNotify = 10;
+    DeviceMappingNotify = 11;
+    ChangeDeviceNotify = 12;
+    DeviceKeyStateNotify = 13;
+    DeviceButtonStateNotify = 13;
+    DevicePresenceNotify = 14;
+    DevicePropertyNotify = 15;
+
+    BadDevice = 0;
+    BadEvent = 1;
+    BadMode = 2;
+    DeviceBusy = 3;
+    BadClass = 4;
+
+}
+
+/***********************************************************************
+ *
+ * IResetProc.
+ * Remove reply-swapping routine.
+ * Remove event-swapping routine.
+ *
+ */
+
+static void
+IResetProc(ExtensionEntry * unused)
+{
+    ReplySwapVector[IReqCode] = ReplyNotSwappd;
+    EventSwapVector[DeviceValuator] = NotImplemented;
+    EventSwapVector[DeviceKeyPress] = NotImplemented;
+    EventSwapVector[DeviceKeyRelease] = NotImplemented;
+    EventSwapVector[DeviceButtonPress] = NotImplemented;
+    EventSwapVector[DeviceButtonRelease] = NotImplemented;
+    EventSwapVector[DeviceMotionNotify] = NotImplemented;
+    EventSwapVector[DeviceFocusIn] = NotImplemented;
+    EventSwapVector[DeviceFocusOut] = NotImplemented;
+    EventSwapVector[ProximityIn] = NotImplemented;
+    EventSwapVector[ProximityOut] = NotImplemented;
+    EventSwapVector[DeviceStateNotify] = NotImplemented;
+    EventSwapVector[DeviceKeyStateNotify] = NotImplemented;
+    EventSwapVector[DeviceButtonStateNotify] = NotImplemented;
+    EventSwapVector[DeviceMappingNotify] = NotImplemented;
+    EventSwapVector[ChangeDeviceNotify] = NotImplemented;
+    EventSwapVector[DevicePresenceNotify] = NotImplemented;
+    EventSwapVector[DevicePropertyNotify] = NotImplemented;
+    RestoreExtensionEvents();
+}
+
+
+/***********************************************************************
+ *
+ * Assign an id and type to an input device.
+ *
+ */
+
+void
+AssignTypeAndName(DeviceIntPtr dev, Atom type, char *name)
+{
+    dev->xinput_type = type;
+    dev->name = strdup(name);
+}
+
+/***********************************************************************
+ *
+ * Make device type atoms.
+ *
+ */
+
+static void
+MakeDeviceTypeAtoms(void)
+{
+    int i;
+
+    for (i = 0; i < NUMTYPES; i++)
+	dev_type[i].type =
+	    MakeAtom(dev_type[i].name, strlen(dev_type[i].name), 1);
+}
+
+/*****************************************************************************
+ *
+ *	SEventIDispatch
+ *
+ *	Swap any events defined in this extension.
+ */
+#define DO_SWAP(func,type) func ((type *)from, (type *)to)
+
+static void
+SEventIDispatch(xEvent * from, xEvent * to)
+{
+    int type = from->u.u.type & 0177;
+
+    if (type == DeviceValuator)
+	DO_SWAP(SEventDeviceValuator, deviceValuator);
+    else if (type == DeviceKeyPress) {
+	SKeyButtonPtrEvent(from, to);
+	to->u.keyButtonPointer.pad1 = from->u.keyButtonPointer.pad1;
+    } else if (type == DeviceKeyRelease) {
+	SKeyButtonPtrEvent(from, to);
+	to->u.keyButtonPointer.pad1 = from->u.keyButtonPointer.pad1;
+    } else if (type == DeviceButtonPress) {
+	SKeyButtonPtrEvent(from, to);
+	to->u.keyButtonPointer.pad1 = from->u.keyButtonPointer.pad1;
+    } else if (type == DeviceButtonRelease) {
+	SKeyButtonPtrEvent(from, to);
+	to->u.keyButtonPointer.pad1 = from->u.keyButtonPointer.pad1;
+    } else if (type == DeviceMotionNotify) {
+	SKeyButtonPtrEvent(from, to);
+	to->u.keyButtonPointer.pad1 = from->u.keyButtonPointer.pad1;
+    } else if (type == DeviceFocusIn)
+	DO_SWAP(SEventFocus, deviceFocus);
+    else if (type == DeviceFocusOut)
+	DO_SWAP(SEventFocus, deviceFocus);
+    else if (type == ProximityIn) {
+	SKeyButtonPtrEvent(from, to);
+	to->u.keyButtonPointer.pad1 = from->u.keyButtonPointer.pad1;
+    } else if (type == ProximityOut) {
+	SKeyButtonPtrEvent(from, to);
+	to->u.keyButtonPointer.pad1 = from->u.keyButtonPointer.pad1;
+    } else if (type == DeviceStateNotify)
+	DO_SWAP(SDeviceStateNotifyEvent, deviceStateNotify);
+    else if (type == DeviceKeyStateNotify)
+	DO_SWAP(SDeviceKeyStateNotifyEvent, deviceKeyStateNotify);
+    else if (type == DeviceButtonStateNotify)
+	DO_SWAP(SDeviceButtonStateNotifyEvent, deviceButtonStateNotify);
+    else if (type == DeviceMappingNotify)
+	DO_SWAP(SDeviceMappingNotifyEvent, deviceMappingNotify);
+    else if (type == ChangeDeviceNotify)
+	DO_SWAP(SChangeDeviceNotifyEvent, changeDeviceNotify);
+    else if (type == DevicePresenceNotify)
+	DO_SWAP(SDevicePresenceNotifyEvent, devicePresenceNotify);
+    else if (type == DevicePropertyNotify)
+	DO_SWAP(SDevicePropertyNotifyEvent, devicePropertyNotify);
+    else {
+	FatalError("XInputExtension: Impossible event!\n");
+    }
+}
+
+/**********************************************************************
+ *
+ * IExtensionInit - initialize the input extension.
+ *
+ * Called from InitExtensions in main() or from QueryExtension() if the
+ * extension is dynamically loaded.
+ *
+ * This extension has several events and errors.
+ *
+ * XI is mandatory nowadays, so if we fail to init XI, we die.
+ */
+
+void
+XInputExtensionInit(void)
+{
+    ExtensionEntry *extEntry;
+    XExtensionVersion thisversion = { XI_Present,
+        SERVER_XI_MAJOR_VERSION,
+        SERVER_XI_MINOR_VERSION,
+    };
+
+    if (!dixRegisterPrivateKey(&XIClientPrivateKeyRec, PRIVATE_CLIENT, sizeof(XIClientRec)))
+        FatalError("Cannot request private for XI.\n");
+
+    if (!AddCallback(&ClientStateCallback, XIClientCallback, 0))
+        FatalError("Failed to add callback to XI.\n");
+
+    extEntry = AddExtension(INAME, IEVENTS, IERRORS, ProcIDispatch,
+			    SProcIDispatch, IResetProc, StandardMinorOpcode);
+    if (extEntry) {
+	IReqCode = extEntry->base;
+	IEventBase = extEntry->eventBase;
+	XIVersion = thisversion;
+	MakeDeviceTypeAtoms();
+	RT_INPUTCLIENT = CreateNewResourceType((DeleteType) InputClientGone,
+					       "INPUTCLIENT");
+	if (!RT_INPUTCLIENT)
+	    FatalError("Failed to add resource type for XI.\n");
+	FixExtensionEvents(extEntry);
+	ReplySwapVector[IReqCode] = (ReplySwapPtr) SReplyIDispatch;
+	EventSwapVector[DeviceValuator] = SEventIDispatch;
+	EventSwapVector[DeviceKeyPress] = SEventIDispatch;
+	EventSwapVector[DeviceKeyRelease] = SEventIDispatch;
+	EventSwapVector[DeviceButtonPress] = SEventIDispatch;
+	EventSwapVector[DeviceButtonRelease] = SEventIDispatch;
+	EventSwapVector[DeviceMotionNotify] = SEventIDispatch;
+	EventSwapVector[DeviceFocusIn] = SEventIDispatch;
+	EventSwapVector[DeviceFocusOut] = SEventIDispatch;
+	EventSwapVector[ProximityIn] = SEventIDispatch;
+	EventSwapVector[ProximityOut] = SEventIDispatch;
+	EventSwapVector[DeviceStateNotify] = SEventIDispatch;
+	EventSwapVector[DeviceKeyStateNotify] = SEventIDispatch;
+	EventSwapVector[DeviceButtonStateNotify] = SEventIDispatch;
+	EventSwapVector[DeviceMappingNotify] = SEventIDispatch;
+	EventSwapVector[ChangeDeviceNotify] = SEventIDispatch;
+	EventSwapVector[DevicePresenceNotify] = SEventIDispatch;
+
+	GERegisterExtension(IReqCode, XI2EventSwap);
+
+
+	memset(&xi_all_devices, 0, sizeof(xi_all_devices));
+	memset(&xi_all_master_devices, 0, sizeof(xi_all_master_devices));
+	xi_all_devices.id = XIAllDevices;
+	xi_all_devices.name = "XIAllDevices";
+	xi_all_master_devices.id = XIAllMasterDevices;
+	xi_all_master_devices.name = "XIAllMasterDevices";
+
+	inputInfo.all_devices = &xi_all_devices;
+	inputInfo.all_master_devices = &xi_all_master_devices;
+
+	XIResetProperties();
+    } else {
+	FatalError("IExtensionInit: AddExtensions failed\n");
+    }
+}
+