4 files changed, 1852 insertions, 1416 deletions
diff --git a/xorg-server/xfixes/cursor.c b/xorg-server/xfixes/cursor.c
index a039d581d..4eaae2784 100644
--- a/xorg-server/xfixes/cursor.c
+++ b/xorg-server/xfixes/cursor.c
@@ -1,1067 +1,1464 @@
-/*
- * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
- *
- * Copyright © 2002 Keith Packard
- *
- * 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, and that the name of Keith Packard not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission.  Keith Packard makes no
- * representations about the suitability of this software for any purpose.  It
- * is provided "as is" without express or implied warranty.
- *
- * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL KEITH 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.
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#else
-#define XFIXES
-#endif
-
-#include "xfixesint.h"
-#include "scrnintstr.h"
-#include "cursorstr.h"
-#include "dixevents.h"
-#include "servermd.h"
-#include "inputstr.h"
-#include "windowstr.h"
-#include "xace.h"
-
-static RESTYPE		CursorClientType;
-static RESTYPE		CursorHideCountType;
-static RESTYPE		CursorWindowType;
-static CursorPtr	CursorCurrent[MAXDEVICES];
-
-static DevPrivateKeyRec CursorScreenPrivateKeyRec;
-#define CursorScreenPrivateKey (&CursorScreenPrivateKeyRec)
-
-static void deleteCursorHideCountsForScreen (ScreenPtr pScreen);
-
-#define VERIFY_CURSOR(pCursor, cursor, client, access)			\
-    do {								\
-	int err;							\
-	err = dixLookupResourceByType((pointer *) &pCursor, cursor,	\
-				      RT_CURSOR, client, access);	\
-	if (err != Success) {						\
-	    client->errorValue = cursor;				\
-	    return err;							\
-	}								\
-    } while (0)
-
-/*
- * There is a global list of windows selecting for cursor events
- */
-
-typedef struct _CursorEvent *CursorEventPtr;
-
-typedef struct _CursorEvent {
-    CursorEventPtr	next;
-    CARD32		eventMask;
-    ClientPtr		pClient;
-    WindowPtr		pWindow;
-    XID			clientResource;
-} CursorEventRec;
-
-static CursorEventPtr	    cursorEvents;
-
-/*
- * Each screen has a list of clients which have requested
- * that the cursor be hid, and the number of times each
- * client has requested.
-*/
-
-typedef struct _CursorHideCountRec *CursorHideCountPtr;
-
-typedef struct _CursorHideCountRec {
-    CursorHideCountPtr   pNext;  
-    ClientPtr            pClient;
-    ScreenPtr            pScreen;
-    int                  hideCount;
-    XID			 resource;
-} CursorHideCountRec;
-
-/*
- * Wrap DisplayCursor to catch cursor change events
- */
-
-typedef struct _CursorScreen {
-    DisplayCursorProcPtr	DisplayCursor;
-    CloseScreenProcPtr		CloseScreen;
-    CursorHideCountPtr          pCursorHideCounts;
-} CursorScreenRec, *CursorScreenPtr;
-
-#define GetCursorScreen(s) ((CursorScreenPtr)dixLookupPrivate(&(s)->devPrivates, CursorScreenPrivateKey))
-#define GetCursorScreenIfSet(s) GetCursorScreen(s)
-#define SetCursorScreen(s,p) dixSetPrivate(&(s)->devPrivates, CursorScreenPrivateKey, p)
-#define Wrap(as,s,elt,func)	(((as)->elt = (s)->elt), (s)->elt = func)
-#define Unwrap(as,s,elt,backup)	(((backup) = (s)->elt), (s)->elt = (as)->elt)
-
-/* The cursor doesn't show up until the first XDefineCursor() */
-static Bool CursorVisible = FALSE;
-
-Bool EnableCursor = TRUE;
-
-static Bool
-CursorDisplayCursor (DeviceIntPtr pDev,
-                     ScreenPtr pScreen,
-		     CursorPtr pCursor)
-{
-    CursorScreenPtr	cs = GetCursorScreen(pScreen);
-    Bool		ret;
-    DisplayCursorProcPtr backupProc;
-
-    Unwrap (cs, pScreen, DisplayCursor, backupProc);
-
-    /*
-     * Have to check ConnectionInfo to distinguish client requests from
-     * initial root window setup.  Not a great way to do it, I admit.
-     */
-    if (ConnectionInfo)
-	CursorVisible = EnableCursor;
-
-    if (cs->pCursorHideCounts != NULL || !CursorVisible) {
-	ret = (*pScreen->DisplayCursor) (pDev, pScreen, NullCursor);
-    } else {
-	ret = (*pScreen->DisplayCursor) (pDev, pScreen, pCursor);
-    }
-
-    if (pCursor != CursorCurrent[pDev->id])
-    {
-	CursorEventPtr	e;
-
-	CursorCurrent[pDev->id] = pCursor;
-	for (e = cursorEvents; e; e = e->next)
-	{
-	    if ((e->eventMask & XFixesDisplayCursorNotifyMask))
-	    {
-		xXFixesCursorNotifyEvent	ev;
-		ev.type = XFixesEventBase + XFixesCursorNotify;
-		ev.subtype = XFixesDisplayCursorNotify;
-		ev.window = e->pWindow->drawable.id;
-		ev.cursorSerial = pCursor->serialNumber;
-		ev.timestamp = currentTime.milliseconds;
-		ev.name = pCursor->name;
-		WriteEventsToClient (e->pClient, 1, (xEvent *) &ev);
-	    }
-	}
-    }
-    Wrap (cs, pScreen, DisplayCursor, backupProc);
-
-    return ret;
-}
-
-static Bool
-CursorCloseScreen (int index, ScreenPtr pScreen)
-{
-    CursorScreenPtr	cs = GetCursorScreen (pScreen);
-    Bool		ret;
-    CloseScreenProcPtr	close_proc;
-    DisplayCursorProcPtr display_proc;
-
-    Unwrap (cs, pScreen, CloseScreen, close_proc);
-    Unwrap (cs, pScreen, DisplayCursor, display_proc);
-    deleteCursorHideCountsForScreen(pScreen);
-    ret = (*pScreen->CloseScreen) (index, pScreen);
-    free(cs);
-    return ret;
-}
-
-#define CursorAllEvents (XFixesDisplayCursorNotifyMask)
-
-static int
-XFixesSelectCursorInput (ClientPtr	pClient,
-			 WindowPtr	pWindow,
-			 CARD32		eventMask)
-{
-    CursorEventPtr	*prev, e;
-    pointer val;
-    int rc;
-
-    for (prev = &cursorEvents; (e = *prev); prev = &e->next)
-    {
-	if (e->pClient == pClient &&
-	    e->pWindow == pWindow)
-	{
-	    break;
-	}
-    }
-    if (!eventMask)
-    {
-	if (e)
-	{
-	    FreeResource (e->clientResource, 0);
-	}
-	return Success;
-    }
-    if (!e)
-    {
-	e = (CursorEventPtr) malloc(sizeof (CursorEventRec));
-	if (!e)
-	    return BadAlloc;
-
-	e->next = 0;
-	e->pClient = pClient;
-	e->pWindow = pWindow;
-	e->clientResource = FakeClientID(pClient->index);
-
-	/*
-	 * Add a resource hanging from the window to
-	 * catch window destroy
-	 */
-	rc = dixLookupResourceByType( &val, pWindow->drawable.id,
-				      CursorWindowType, serverClient,
-				      DixGetAttrAccess);
-	if (rc != Success)
-	    if (!AddResource (pWindow->drawable.id, CursorWindowType,
-			      (pointer) pWindow))
-	    {
-		free(e);
-		return BadAlloc;
-	    }
-
-	if (!AddResource (e->clientResource, CursorClientType, (pointer) e))
-	    return BadAlloc;
-
-	*prev = e;
-    }
-    e->eventMask = eventMask;
-    return Success;
-}
-
-int
-ProcXFixesSelectCursorInput (ClientPtr client)
-{
-    REQUEST (xXFixesSelectCursorInputReq);
-    WindowPtr	pWin;
-    int		rc;
-
-    REQUEST_SIZE_MATCH (xXFixesSelectCursorInputReq);
-    rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
-    if (rc != Success)
-        return rc;
-    if (stuff->eventMask & ~CursorAllEvents)
-    {
-	client->errorValue = stuff->eventMask;
-	return BadValue;
-    }
-    return XFixesSelectCursorInput (client, pWin, stuff->eventMask);
-}
-
-static int
-GetBit (unsigned char *line, int x)
-{
-    unsigned char   mask;
-    
-    if (screenInfo.bitmapBitOrder == LSBFirst)
-	mask = (1 << (x & 7));
-    else
-	mask = (0x80 >> (x & 7));
-    /* XXX assumes byte order is host byte order */
-    line += (x >> 3);
-    if (*line & mask)
-	return 1;
-    return 0;
-}
-
-int
-SProcXFixesSelectCursorInput (ClientPtr client)
-{
-    register int n;
-    REQUEST(xXFixesSelectCursorInputReq);
-
-    swaps(&stuff->length, n);
-    swapl(&stuff->window, n);
-    swapl(&stuff->eventMask, n);
-    return (*ProcXFixesVector[stuff->xfixesReqType]) (client);
-}
-    
-void
-SXFixesCursorNotifyEvent (xXFixesCursorNotifyEvent *from,
-			  xXFixesCursorNotifyEvent *to)
-{
-    to->type = from->type;
-    cpswaps (from->sequenceNumber, to->sequenceNumber);
-    cpswapl (from->window, to->window);
-    cpswapl (from->cursorSerial, to->cursorSerial);
-    cpswapl (from->timestamp, to->timestamp);
-    cpswapl (from->name, to->name);
-}
-
-static void
-CopyCursorToImage (CursorPtr pCursor, CARD32 *image)
-{
-    int width = pCursor->bits->width;
-    int height = pCursor->bits->height;
-    int npixels = width * height;
-    
-#ifdef ARGB_CURSOR
-    if (pCursor->bits->argb)
-	memcpy (image, pCursor->bits->argb, npixels * sizeof (CARD32));
-    else
-#endif
-    {
-	unsigned char	*srcLine = pCursor->bits->source;
-	unsigned char	*mskLine = pCursor->bits->mask;
-	int		stride = BitmapBytePad (width);
-	int		x, y;
-	CARD32		fg, bg;
-	
-	fg = (0xff000000 | 
-	      ((pCursor->foreRed & 0xff00) << 8) |
-	      (pCursor->foreGreen & 0xff00) |
-	      (pCursor->foreBlue >> 8));
-	bg = (0xff000000 | 
-	      ((pCursor->backRed & 0xff00) << 8) |
-	      (pCursor->backGreen & 0xff00) |
-	      (pCursor->backBlue >> 8));
-	for (y = 0; y < height; y++)
-	{
-	    for (x = 0; x < width; x++)
-	    {
-		if (GetBit (mskLine, x))
-		{
-		    if (GetBit (srcLine, x))
-			*image++ = fg;
-		    else
-			*image++ = bg;
-		}
-		else
-		    *image++ = 0;
-	    }
-	    srcLine += stride;
-	    mskLine += stride;
-	}
-    }
-}
-
-int
-ProcXFixesGetCursorImage (ClientPtr client)
-{
-/*    REQUEST(xXFixesGetCursorImageReq); */
-    xXFixesGetCursorImageReply	*rep;
-    CursorPtr			pCursor;
-    CARD32			*image;
-    int				npixels, width, height, rc, x, y;
-
-    REQUEST_SIZE_MATCH(xXFixesGetCursorImageReq);
-    pCursor = CursorCurrent[PickPointer(client)->id];
-    if (!pCursor)
-	return BadCursor;
-    rc = XaceHook(XACE_RESOURCE_ACCESS, client, pCursor->id, RT_CURSOR,
-		  pCursor, RT_NONE, NULL, DixReadAccess);
-    if (rc != Success)
-	return rc;
-    GetSpritePosition (PickPointer(client), &x, &y);
-    width = pCursor->bits->width;
-    height = pCursor->bits->height;
-    npixels = width * height;
-    rep = malloc(sizeof (xXFixesGetCursorImageReply) +
-		  npixels * sizeof (CARD32));
-    if (!rep)
-	return BadAlloc;
-
-    rep->type = X_Reply;
-    rep->sequenceNumber = client->sequence;
-    rep->length = npixels;
-    rep->width = width;
-    rep->height = height;
-    rep->x = x;
-    rep->y = y;
-    rep->xhot = pCursor->bits->xhot;
-    rep->yhot = pCursor->bits->yhot; 
-    rep->cursorSerial = pCursor->serialNumber;
-
-    image = (CARD32 *) (rep + 1);
-    CopyCursorToImage (pCursor, image);
-    if (client->swapped)
-    {
-	int n;
-	swaps (&rep->sequenceNumber, n);
-	swapl (&rep->length, n);
-	swaps (&rep->x, n);
-	swaps (&rep->y, n);
-	swaps (&rep->width, n);
-	swaps (&rep->height, n);
-	swaps (&rep->xhot, n);
-	swaps (&rep->yhot, n);
-	swapl (&rep->cursorSerial, n);
-	SwapLongs (image, npixels);
-    }
-    WriteToClient(client, sizeof (xXFixesGetCursorImageReply) +
-			 (npixels << 2), (char *) rep);
-    free(rep);
-    return Success;
-}
-
-int
-SProcXFixesGetCursorImage (ClientPtr client)
-{
-    int n;
-    REQUEST(xXFixesGetCursorImageReq);
-    swaps (&stuff->length, n);
-    return (*ProcXFixesVector[stuff->xfixesReqType]) (client);
-}
-
-int
-ProcXFixesSetCursorName (ClientPtr client)
-{
-    CursorPtr pCursor;
-    char *tchar;
-    REQUEST(xXFixesSetCursorNameReq);
-    Atom atom;
-
-    REQUEST_AT_LEAST_SIZE(xXFixesSetCursorNameReq);
-    VERIFY_CURSOR(pCursor, stuff->cursor, client, DixSetAttrAccess);
-    tchar = (char *) &stuff[1];
-    atom = MakeAtom (tchar, stuff->nbytes, TRUE);
-    if (atom == BAD_RESOURCE)
-	return BadAlloc;
-    
-    pCursor->name = atom;
-    return Success;
-}
-
-int
-SProcXFixesSetCursorName (ClientPtr client)
-{
-    int n;
-    REQUEST(xXFixesSetCursorNameReq);
-
-    swaps (&stuff->length, n);
-    REQUEST_AT_LEAST_SIZE(xXFixesSetCursorNameReq);
-    swapl (&stuff->cursor, n);
-    swaps (&stuff->nbytes, n);
-    return (*ProcXFixesVector[stuff->xfixesReqType]) (client);
-}
-
-int
-ProcXFixesGetCursorName (ClientPtr client)
-{
-    CursorPtr			pCursor;
-    xXFixesGetCursorNameReply	reply;
-    REQUEST(xXFixesGetCursorNameReq);
-    const char *str;
-    int len;
-
-    REQUEST_SIZE_MATCH(xXFixesGetCursorNameReq);
-    VERIFY_CURSOR(pCursor, stuff->cursor, client, DixGetAttrAccess);
-    if (pCursor->name)
-	str = NameForAtom (pCursor->name);
-    else
-	str = "";
-    len = strlen (str);
-    
-    reply.type = X_Reply;
-    reply.length = bytes_to_int32(len);
-    reply.sequenceNumber = client->sequence;
-    reply.atom = pCursor->name;
-    reply.nbytes = len;
-    if (client->swapped)
-    {
-	int n;
-	swaps (&reply.sequenceNumber, n);
-	swapl (&reply.length, n);
-	swapl (&reply.atom, n);
-	swaps (&reply.nbytes, n);
-    }
-    WriteReplyToClient(client, sizeof(xXFixesGetCursorNameReply), &reply);
-    WriteToClient(client, len, str);
-    
-    return Success;
-}
-
-int
-SProcXFixesGetCursorName (ClientPtr client)
-{
-    int n;
-    REQUEST(xXFixesGetCursorNameReq);
-
-    swaps (&stuff->length, n);
-    REQUEST_SIZE_MATCH(xXFixesGetCursorNameReq);
-    swapl (&stuff->cursor, n);
-    return (*ProcXFixesVector[stuff->xfixesReqType]) (client);
-}
-
-int
-ProcXFixesGetCursorImageAndName (ClientPtr client)
-{
-/*    REQUEST(xXFixesGetCursorImageAndNameReq); */
-    xXFixesGetCursorImageAndNameReply	*rep;
-    CursorPtr			pCursor;
-    CARD32			*image;
-    int				npixels;
-    const char			*name;
-    int				nbytes, nbytesRound;
-    int				width, height;
-    int				rc, x, y;
-
-    REQUEST_SIZE_MATCH(xXFixesGetCursorImageAndNameReq);
-    pCursor = CursorCurrent[PickPointer(client)->id];
-    if (!pCursor)
-	return BadCursor;
-    rc = XaceHook(XACE_RESOURCE_ACCESS, client, pCursor->id, RT_CURSOR,
-		  pCursor, RT_NONE, NULL, DixReadAccess|DixGetAttrAccess);
-    if (rc != Success)
-	return rc;
-    GetSpritePosition (PickPointer(client), &x, &y);
-    width = pCursor->bits->width;
-    height = pCursor->bits->height;
-    npixels = width * height;
-    name = pCursor->name ? NameForAtom (pCursor->name) : "";
-    nbytes = strlen (name);
-    nbytesRound = pad_to_int32(nbytes);
-    rep = malloc(sizeof (xXFixesGetCursorImageAndNameReply) +
-		  npixels * sizeof (CARD32) + nbytesRound);
-    if (!rep)
-	return BadAlloc;
-
-    rep->type = X_Reply;
-    rep->sequenceNumber = client->sequence;
-    rep->length = npixels + bytes_to_int32(nbytesRound);
-    rep->width = width;
-    rep->height = height;
-    rep->x = x;
-    rep->y = y;
-    rep->xhot = pCursor->bits->xhot;
-    rep->yhot = pCursor->bits->yhot; 
-    rep->cursorSerial = pCursor->serialNumber;
-    rep->cursorName = pCursor->name;
-    rep->nbytes = nbytes;
-
-    image = (CARD32 *) (rep + 1);
-    CopyCursorToImage (pCursor, image);
-    memcpy ((image + npixels), name, nbytes);
-    if (client->swapped)
-    {
-	int n;
-	swaps (&rep->sequenceNumber, n);
-	swapl (&rep->length, n);
-	swaps (&rep->x, n);
-	swaps (&rep->y, n);
-	swaps (&rep->width, n);
-	swaps (&rep->height, n);
-	swaps (&rep->xhot, n);
-	swaps (&rep->yhot, n);
-	swapl (&rep->cursorSerial, n);
-	swapl (&rep->cursorName, n);
-	swaps (&rep->nbytes, n);
-	SwapLongs (image, npixels);
-    }
-    WriteToClient(client, sizeof (xXFixesGetCursorImageAndNameReply) +
-			 (npixels << 2) + nbytesRound, (char *) rep);
-    free(rep);
-    return Success;
-}
-
-int
-SProcXFixesGetCursorImageAndName (ClientPtr client)
-{
-    int n;
-    REQUEST(xXFixesGetCursorImageAndNameReq);
-    swaps (&stuff->length, n);
-    return (*ProcXFixesVector[stuff->xfixesReqType]) (client);
-}
-
-/*
- * Find every cursor reference in the system, ask testCursor
- * whether it should be replaced with a reference to pCursor.
- */
-
-typedef Bool (*TestCursorFunc) (CursorPtr pOld, pointer closure);
-
-typedef struct {
-    RESTYPE type;
-    TestCursorFunc testCursor;
-    CursorPtr pNew;
-    pointer closure;
-} ReplaceCursorLookupRec, *ReplaceCursorLookupPtr;
-
-static const RESTYPE    CursorRestypes[] = {
-    RT_WINDOW, RT_PASSIVEGRAB, RT_CURSOR
-};
-
-#define NUM_CURSOR_RESTYPES (sizeof (CursorRestypes) / sizeof (CursorRestypes[0]))
-
-static Bool
-ReplaceCursorLookup (pointer value, XID id, pointer closure)
-{
-    ReplaceCursorLookupPtr  rcl = (ReplaceCursorLookupPtr) closure;
-    WindowPtr		    pWin;
-    GrabPtr		    pGrab;
-    CursorPtr		    pCursor = 0, *pCursorRef = 0;
-    XID			    cursor = 0;
-
-    switch (rcl->type) {
-    case RT_WINDOW:
-	pWin = (WindowPtr) value;
-	if (pWin->optional)
-	{
-	    pCursorRef = &pWin->optional->cursor;
-	    pCursor = *pCursorRef;
-	}
-	break;
-    case RT_PASSIVEGRAB:
-	pGrab = (GrabPtr) value;
-	pCursorRef = &pGrab->cursor;
-	pCursor = *pCursorRef;
-	break;
-    case RT_CURSOR:
-	pCursorRef = 0;
-	pCursor = (CursorPtr) value;
-	cursor = id;
-	break;
-    }
-    if (pCursor && pCursor != rcl->pNew)
-    {
-	if ((*rcl->testCursor) (pCursor, rcl->closure))
-	{
-	    rcl->pNew->refcnt++;
-	    /* either redirect reference or update resource database */
-	    if (pCursorRef)
-		*pCursorRef = rcl->pNew;
-	    else
-		ChangeResourceValue (id, RT_CURSOR, rcl->pNew);
-	    FreeCursor (pCursor, cursor);
-	}
-    }
-    return FALSE;   /* keep walking */
-}
-
-static void
-ReplaceCursor (CursorPtr pCursor,
-	       TestCursorFunc testCursor,
-	       pointer closure)
-{
-    int	clientIndex;
-    int resIndex;
-    ReplaceCursorLookupRec  rcl;
-    
-    /* 
-     * Cursors exist only in the resource database, windows and grabs.
-     * All of these are always pointed at by the resource database.  Walk
-     * the whole thing looking for cursors
-     */
-    rcl.testCursor = testCursor;
-    rcl.pNew = pCursor;
-    rcl.closure = closure;
-
-    /* for each client */
-    for (clientIndex = 0; clientIndex < currentMaxClients; clientIndex++)
-    {
-	if (!clients[clientIndex])
-	    continue;
-	for (resIndex = 0; resIndex < NUM_CURSOR_RESTYPES; resIndex++)
-	{
-	    rcl.type = CursorRestypes[resIndex];
-	    /*
-	     * This function walks the entire client resource database
-	     */
-	    LookupClientResourceComplex (clients[clientIndex], 
-					 rcl.type, 
-					 ReplaceCursorLookup,
-					 (pointer) &rcl);
-	}
-    }
-    /* this "knows" that WindowHasNewCursor doesn't depend on it's argument */
-    WindowHasNewCursor (screenInfo.screens[0]->root);
-}
-
-static Bool 
-TestForCursor (CursorPtr pCursor, pointer closure)
-{
-    return (pCursor == (CursorPtr) closure);
-}
-
-int
-ProcXFixesChangeCursor (ClientPtr client)
-{
-    CursorPtr	pSource, pDestination;
-    REQUEST(xXFixesChangeCursorReq);
-
-    REQUEST_SIZE_MATCH(xXFixesChangeCursorReq);
-    VERIFY_CURSOR (pSource, stuff->source, client,
-		   DixReadAccess|DixGetAttrAccess);
-    VERIFY_CURSOR (pDestination, stuff->destination, client,
-		   DixWriteAccess|DixSetAttrAccess);
-
-    ReplaceCursor (pSource, TestForCursor, (pointer) pDestination);
-    return Success;
-}
-
-int
-SProcXFixesChangeCursor (ClientPtr client)
-{
-    int n;
-    REQUEST(xXFixesChangeCursorReq);
-
-    swaps (&stuff->length, n);
-    REQUEST_SIZE_MATCH(xXFixesChangeCursorReq);
-    swapl (&stuff->source, n);
-    swapl (&stuff->destination, n);
-    return (*ProcXFixesVector[stuff->xfixesReqType]) (client);
-}
-
-static Bool
-TestForCursorName (CursorPtr pCursor, pointer closure)
-{
-    Atom *pName = closure;
-    return pCursor->name == *pName;
-}
-
-int
-ProcXFixesChangeCursorByName (ClientPtr client)
-{
-    CursorPtr	pSource;
-    Atom	name;
-    char	*tchar;
-    REQUEST(xXFixesChangeCursorByNameReq);
-
-    REQUEST_FIXED_SIZE(xXFixesChangeCursorByNameReq, stuff->nbytes);
-    VERIFY_CURSOR(pSource, stuff->source, client,
-		  DixReadAccess|DixGetAttrAccess);
-    tchar = (char *) &stuff[1];
-    name = MakeAtom (tchar, stuff->nbytes, FALSE);
-    if (name)
-	ReplaceCursor (pSource, TestForCursorName, &name);
-    return Success;
-}
-
-int
-SProcXFixesChangeCursorByName (ClientPtr client)
-{
-    int n;
-    REQUEST(xXFixesChangeCursorByNameReq);
-
-    swaps (&stuff->length, n);
-    REQUEST_AT_LEAST_SIZE (xXFixesChangeCursorByNameReq);
-    swapl (&stuff->source, n);
-    swaps (&stuff->nbytes, n);
-    return (*ProcXFixesVector[stuff->xfixesReqType]) (client);
-}
-
-/*
- * Routines for manipulating the per-screen hide counts list.
- * This list indicates which clients have requested cursor hiding 
- * for that screen.
- */
-
-/* Return the screen's hide-counts list element for the given client */
-static CursorHideCountPtr
-findCursorHideCount (ClientPtr pClient, ScreenPtr pScreen) 
-{
-    CursorScreenPtr    cs = GetCursorScreen(pScreen);
-    CursorHideCountPtr pChc;
-
-    for (pChc = cs->pCursorHideCounts; pChc != NULL; pChc = pChc->pNext) {
-	if (pChc->pClient == pClient) {
-	    return pChc;
-	}
-    }
-
-    return NULL;           
-}
-
-static int
-createCursorHideCount (ClientPtr pClient, ScreenPtr pScreen)
-{
-    CursorScreenPtr    cs = GetCursorScreen(pScreen);
-    CursorHideCountPtr pChc;
-
-    pChc = (CursorHideCountPtr) malloc(sizeof(CursorHideCountRec));
-    if (pChc == NULL) {
-	return BadAlloc;
-    }
-    pChc->pClient = pClient;
-    pChc->pScreen = pScreen;
-    pChc->hideCount = 1;
-    pChc->resource = FakeClientID(pClient->index);
-    pChc->pNext = cs->pCursorHideCounts;
-    cs->pCursorHideCounts = pChc;
-    
-    /* 
-     * Create a resource for this element so it can be deleted
-     * when the client goes away.
-     */
-    if (!AddResource (pChc->resource, CursorHideCountType, 
-		      (pointer) pChc)) {
-	free(pChc);
-	return BadAlloc;
-    }
-
-    return Success;
-}
-
-/* 
- * Delete the given hide-counts list element from its screen list.
- */
-static void
-deleteCursorHideCount (CursorHideCountPtr pChcToDel, ScreenPtr pScreen)
-{
-    CursorScreenPtr    cs = GetCursorScreen(pScreen);
-    CursorHideCountPtr pChc, pNext;
-    CursorHideCountPtr pChcLast = NULL;
-
-    pChc = cs->pCursorHideCounts;
-    while (pChc != NULL) {
-	pNext = pChc->pNext;
-	if (pChc == pChcToDel) {
-	    free(pChc);
-	    if (pChcLast == NULL) {
-		cs->pCursorHideCounts = pNext;
-	    } else {
-		pChcLast->pNext = pNext;
-	    }
-	    return;
-	}
-	pChcLast = pChc;
-	pChc = pNext;
-    }
-}
-
-/* 
- * Delete all the hide-counts list elements for this screen.
- */
-static void
-deleteCursorHideCountsForScreen (ScreenPtr pScreen)
-{
-    CursorScreenPtr    cs = GetCursorScreen(pScreen);
-    CursorHideCountPtr pChc, pTmp;
-
-    pChc = cs->pCursorHideCounts;
-    while (pChc != NULL) {
-	pTmp = pChc->pNext;
-	FreeResource(pChc->resource, 0);
-	pChc = pTmp;
-    }
-    cs->pCursorHideCounts = NULL;   
-}
-
-int 
-ProcXFixesHideCursor (ClientPtr client) 
-{
-    WindowPtr pWin;
-    CursorHideCountPtr pChc;
-    REQUEST(xXFixesHideCursorReq);
-    int ret;
-
-    REQUEST_SIZE_MATCH (xXFixesHideCursorReq);
-
-    ret = dixLookupResourceByType((pointer *)&pWin, stuff->window, RT_WINDOW,
-			    client, DixGetAttrAccess);
-    if (ret != Success) {
-	client->errorValue = stuff->window;
-	return ret;
-    }
-
-    /* 
-     * Has client hidden the cursor before on this screen? 
-     * If so, just increment the count. 
-     */
-
-    pChc = findCursorHideCount(client, pWin->drawable.pScreen);
-    if (pChc != NULL) {
-	pChc->hideCount++;
-	return Success;
-    }
-
-    /* 
-     * This is the first time this client has hid the cursor 
-     * for this screen.
-     */
-    ret = XaceHook(XACE_SCREEN_ACCESS, client, pWin->drawable.pScreen,
-		   DixHideAccess);
-    if (ret != Success)
-	return ret;
-
-    ret = createCursorHideCount(client, pWin->drawable.pScreen);
-
-    if (ret == Success) {
-	DeviceIntPtr dev;
-	for (dev = inputInfo.devices; dev; dev = dev->next)
-	{
-	    if (IsMaster(dev) && IsPointerDevice(dev))
-		CursorDisplayCursor(dev, pWin->drawable.pScreen, CursorCurrent[dev->id]);
-	}
-    }
-
-    return ret;
-}
-
-int 
-SProcXFixesHideCursor (ClientPtr client) 
-{
-    int n;
-    REQUEST(xXFixesHideCursorReq);
-
-    swaps (&stuff->length, n);
-    REQUEST_SIZE_MATCH (xXFixesHideCursorReq);
-    swapl (&stuff->window, n);
-    return (*ProcXFixesVector[stuff->xfixesReqType]) (client);
-}
-
-int 
-ProcXFixesShowCursor (ClientPtr client) 
-{
-    WindowPtr pWin;
-    CursorHideCountPtr pChc;
-    int rc;
-    REQUEST(xXFixesShowCursorReq);
-
-    REQUEST_SIZE_MATCH (xXFixesShowCursorReq);
-
-    rc = dixLookupResourceByType((pointer *)&pWin, stuff->window, RT_WINDOW,
-			   client, DixGetAttrAccess);
-    if (rc != Success) {
-	client->errorValue = stuff->window;
-	return rc;
-    }
-
-    /* 
-     * Has client hidden the cursor on this screen?
-     * If not, generate an error.
-     */
-    pChc = findCursorHideCount(client, pWin->drawable.pScreen);
-    if (pChc == NULL) {
-	return BadMatch;
-    }
-
-    rc = XaceHook(XACE_SCREEN_ACCESS, client, pWin->drawable.pScreen,
-		  DixShowAccess);
-    if (rc != Success)
-	return rc;
-
-    pChc->hideCount--;
-    if (pChc->hideCount <= 0) {
-	FreeResource(pChc->resource, 0);
-    }
-
-    return Success;
-}
-
-int 
-SProcXFixesShowCursor (ClientPtr client) 
-{
-    int n;
-    REQUEST(xXFixesShowCursorReq);
-
-    swaps (&stuff->length, n);
-    REQUEST_SIZE_MATCH (xXFixesShowCursorReq);
-    swapl (&stuff->window, n);
-    return (*ProcXFixesVector[stuff->xfixesReqType]) (client);
-}
-
-static int
-CursorFreeClient (pointer data, XID id)
-{
-    CursorEventPtr	old = (CursorEventPtr) data;
-    CursorEventPtr	*prev, e;
-    
-    for (prev = &cursorEvents; (e = *prev); prev = &e->next)
-    {
-	if (e == old)
-	{
-	    *prev = e->next;
-	    free(e);
-	    break;
-	}
-    }
-    return 1;
-}
-
-static int
-CursorFreeHideCount (pointer data, XID id)
-{
-    CursorHideCountPtr pChc = (CursorHideCountPtr) data;
-    ScreenPtr pScreen = pChc->pScreen;
-    DeviceIntPtr dev;
-
-    deleteCursorHideCount(pChc, pChc->pScreen);
-    for (dev = inputInfo.devices; dev; dev = dev->next)
-    {
-        if (IsMaster(dev) && IsPointerDevice(dev))
-            CursorDisplayCursor(dev, pScreen, CursorCurrent[dev->id]);
-    }
-
-    return 1;
-}
-
-static int
-CursorFreeWindow (pointer data, XID id)
-{
-    WindowPtr		pWindow = (WindowPtr) data;
-    CursorEventPtr	e, next;
-
-    for (e = cursorEvents; e; e = next)
-    {
-	next = e->next;
-	if (e->pWindow == pWindow)
-	{
-	    FreeResource (e->clientResource, 0);
-	}
-    }
-    return 1;
-}
-
-Bool
-XFixesCursorInit (void)
-{
-    int	i;
-
-    if (party_like_its_1989)
-	CursorVisible = EnableCursor;
-    
-    if (!dixRegisterPrivateKey(&CursorScreenPrivateKeyRec, PRIVATE_SCREEN, 0))
-	return FALSE;
-
-    for (i = 0; i < screenInfo.numScreens; i++)
-    {
-	ScreenPtr	pScreen = screenInfo.screens[i];
-	CursorScreenPtr	cs;
-
-	cs = (CursorScreenPtr) calloc(1, sizeof (CursorScreenRec));
-	if (!cs)
-	    return FALSE;
-	Wrap (cs, pScreen, CloseScreen, CursorCloseScreen);
-	Wrap (cs, pScreen, DisplayCursor, CursorDisplayCursor);
-	cs->pCursorHideCounts = NULL;
-	SetCursorScreen (pScreen, cs);
-    }
-    CursorClientType = CreateNewResourceType(CursorFreeClient,
-					     "XFixesCursorClient");
-    CursorHideCountType = CreateNewResourceType(CursorFreeHideCount,
-						"XFixesCursorHideCount");
-    CursorWindowType = CreateNewResourceType(CursorFreeWindow,
-					     "XFixesCursorWindow");
-
-    return CursorClientType && CursorHideCountType && CursorWindowType;
-}
-
+/*
+ * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2010 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Copyright © 2002 Keith Packard
+ *
+ * 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, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Keith Packard makes no
+ * representations about the suitability of this software for any purpose.  It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH 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.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#else
+#define XFIXES
+#endif
+
+#include "xfixesint.h"
+#include "scrnintstr.h"
+#include "cursorstr.h"
+#include "dixevents.h"
+#include "servermd.h"
+#include "mipointer.h"
+#include "inputstr.h"
+#include "windowstr.h"
+#include "xace.h"
+#include "list.h"
+
+static RESTYPE		CursorClientType;
+static RESTYPE		CursorHideCountType;
+static RESTYPE		CursorWindowType;
+RESTYPE			PointerBarrierType;
+static CursorPtr	CursorCurrent[MAXDEVICES];
+
+static DevPrivateKeyRec CursorScreenPrivateKeyRec;
+#define CursorScreenPrivateKey (&CursorScreenPrivateKeyRec)
+
+static void deleteCursorHideCountsForScreen (ScreenPtr pScreen);
+
+#define VERIFY_CURSOR(pCursor, cursor, client, access)			\
+    do {								\
+	int err;							\
+	err = dixLookupResourceByType((pointer *) &pCursor, cursor,	\
+				      RT_CURSOR, client, access);	\
+	if (err != Success) {						\
+	    client->errorValue = cursor;				\
+	    return err;							\
+	}								\
+    } while (0)
+
+/*
+ * There is a global list of windows selecting for cursor events
+ */
+
+typedef struct _CursorEvent *CursorEventPtr;
+
+typedef struct _CursorEvent {
+    CursorEventPtr	next;
+    CARD32		eventMask;
+    ClientPtr		pClient;
+    WindowPtr		pWindow;
+    XID			clientResource;
+} CursorEventRec;
+
+static CursorEventPtr	    cursorEvents;
+
+/*
+ * Each screen has a list of clients which have requested
+ * that the cursor be hid, and the number of times each
+ * client has requested.
+*/
+
+typedef struct _CursorHideCountRec *CursorHideCountPtr;
+
+typedef struct _CursorHideCountRec {
+    CursorHideCountPtr   pNext;  
+    ClientPtr            pClient;
+    ScreenPtr            pScreen;
+    int                  hideCount;
+    XID			 resource;
+} CursorHideCountRec;
+
+typedef struct PointerBarrierClient *PointerBarrierClientPtr;
+
+struct PointerBarrierClient {
+    ScreenPtr screen;
+    struct PointerBarrier barrier;
+    struct list entry;
+};
+
+/*
+ * Wrap DisplayCursor to catch cursor change events
+ */
+
+typedef struct _CursorScreen {
+    DisplayCursorProcPtr	DisplayCursor;
+    CloseScreenProcPtr		CloseScreen;
+    ConstrainCursorHarderProcPtr ConstrainCursorHarder;
+    CursorHideCountPtr          pCursorHideCounts;
+    struct list                 barriers;
+} CursorScreenRec, *CursorScreenPtr;
+
+#define GetCursorScreen(s) ((CursorScreenPtr)dixLookupPrivate(&(s)->devPrivates, CursorScreenPrivateKey))
+#define GetCursorScreenIfSet(s) GetCursorScreen(s)
+#define SetCursorScreen(s,p) dixSetPrivate(&(s)->devPrivates, CursorScreenPrivateKey, p)
+#define Wrap(as,s,elt,func)	(((as)->elt = (s)->elt), (s)->elt = func)
+#define Unwrap(as,s,elt,backup)	(((backup) = (s)->elt), (s)->elt = (as)->elt)
+
+/* The cursor doesn't show up until the first XDefineCursor() */
+static Bool CursorVisible = FALSE;
+
+Bool EnableCursor = TRUE;
+
+static Bool
+CursorDisplayCursor (DeviceIntPtr pDev,
+                     ScreenPtr pScreen,
+		     CursorPtr pCursor)
+{
+    CursorScreenPtr	cs = GetCursorScreen(pScreen);
+    Bool		ret;
+    DisplayCursorProcPtr backupProc;
+
+    Unwrap (cs, pScreen, DisplayCursor, backupProc);
+
+    /*
+     * Have to check ConnectionInfo to distinguish client requests from
+     * initial root window setup.  Not a great way to do it, I admit.
+     */
+    if (ConnectionInfo)
+	CursorVisible = EnableCursor;
+
+    if (cs->pCursorHideCounts != NULL || !CursorVisible) {
+	ret = (*pScreen->DisplayCursor) (pDev, pScreen, NullCursor);
+    } else {
+	ret = (*pScreen->DisplayCursor) (pDev, pScreen, pCursor);
+    }
+
+    if (pCursor != CursorCurrent[pDev->id])
+    {
+	CursorEventPtr	e;
+
+	CursorCurrent[pDev->id] = pCursor;
+	for (e = cursorEvents; e; e = e->next)
+	{
+	    if ((e->eventMask & XFixesDisplayCursorNotifyMask))
+	    {
+		xXFixesCursorNotifyEvent	ev;
+		ev.type = XFixesEventBase + XFixesCursorNotify;
+		ev.subtype = XFixesDisplayCursorNotify;
+		ev.window = e->pWindow->drawable.id;
+		ev.cursorSerial = pCursor->serialNumber;
+		ev.timestamp = currentTime.milliseconds;
+		ev.name = pCursor->name;
+		WriteEventsToClient (e->pClient, 1, (xEvent *) &ev);
+	    }
+	}
+    }
+    Wrap (cs, pScreen, DisplayCursor, backupProc);
+
+    return ret;
+}
+
+static Bool
+CursorCloseScreen (int index, ScreenPtr pScreen)
+{
+    CursorScreenPtr	cs = GetCursorScreen (pScreen);
+    Bool		ret;
+    CloseScreenProcPtr	close_proc;
+    DisplayCursorProcPtr display_proc;
+    ConstrainCursorHarderProcPtr constrain_proc;
+
+    Unwrap (cs, pScreen, CloseScreen, close_proc);
+    Unwrap (cs, pScreen, DisplayCursor, display_proc);
+    Unwrap (cs, pScreen, ConstrainCursorHarder, constrain_proc);
+    deleteCursorHideCountsForScreen(pScreen);
+    ret = (*pScreen->CloseScreen) (index, pScreen);
+    free(cs);
+    return ret;
+}
+
+#define CursorAllEvents (XFixesDisplayCursorNotifyMask)
+
+static int
+XFixesSelectCursorInput (ClientPtr	pClient,
+			 WindowPtr	pWindow,
+			 CARD32		eventMask)
+{
+    CursorEventPtr	*prev, e;
+    pointer val;
+    int rc;
+
+    for (prev = &cursorEvents; (e = *prev); prev = &e->next)
+    {
+	if (e->pClient == pClient &&
+	    e->pWindow == pWindow)
+	{
+	    break;
+	}
+    }
+    if (!eventMask)
+    {
+	if (e)
+	{
+	    FreeResource (e->clientResource, 0);
+	}
+	return Success;
+    }
+    if (!e)
+    {
+	e = (CursorEventPtr) malloc(sizeof (CursorEventRec));
+	if (!e)
+	    return BadAlloc;
+
+	e->next = 0;
+	e->pClient = pClient;
+	e->pWindow = pWindow;
+	e->clientResource = FakeClientID(pClient->index);
+
+	/*
+	 * Add a resource hanging from the window to
+	 * catch window destroy
+	 */
+	rc = dixLookupResourceByType( &val, pWindow->drawable.id,
+				      CursorWindowType, serverClient,
+				      DixGetAttrAccess);
+	if (rc != Success)
+	    if (!AddResource (pWindow->drawable.id, CursorWindowType,
+			      (pointer) pWindow))
+	    {
+		free(e);
+		return BadAlloc;
+	    }
+
+	if (!AddResource (e->clientResource, CursorClientType, (pointer) e))
+	    return BadAlloc;
+
+	*prev = e;
+    }
+    e->eventMask = eventMask;
+    return Success;
+}
+
+int
+ProcXFixesSelectCursorInput (ClientPtr client)
+{
+    REQUEST (xXFixesSelectCursorInputReq);
+    WindowPtr	pWin;
+    int		rc;
+
+    REQUEST_SIZE_MATCH (xXFixesSelectCursorInputReq);
+    rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
+    if (rc != Success)
+        return rc;
+    if (stuff->eventMask & ~CursorAllEvents)
+    {
+	client->errorValue = stuff->eventMask;
+	return BadValue;
+    }
+    return XFixesSelectCursorInput (client, pWin, stuff->eventMask);
+}
+
+static int
+GetBit (unsigned char *line, int x)
+{
+    unsigned char   mask;
+    
+    if (screenInfo.bitmapBitOrder == LSBFirst)
+	mask = (1 << (x & 7));
+    else
+	mask = (0x80 >> (x & 7));
+    /* XXX assumes byte order is host byte order */
+    line += (x >> 3);
+    if (*line & mask)
+	return 1;
+    return 0;
+}
+
+int
+SProcXFixesSelectCursorInput (ClientPtr client)
+{
+    register int n;
+    REQUEST(xXFixesSelectCursorInputReq);
+
+    swaps(&stuff->length, n);
+    swapl(&stuff->window, n);
+    swapl(&stuff->eventMask, n);
+    return (*ProcXFixesVector[stuff->xfixesReqType]) (client);
+}
+    
+void
+SXFixesCursorNotifyEvent (xXFixesCursorNotifyEvent *from,
+			  xXFixesCursorNotifyEvent *to)
+{
+    to->type = from->type;
+    cpswaps (from->sequenceNumber, to->sequenceNumber);
+    cpswapl (from->window, to->window);
+    cpswapl (from->cursorSerial, to->cursorSerial);
+    cpswapl (from->timestamp, to->timestamp);
+    cpswapl (from->name, to->name);
+}
+
+static void
+CopyCursorToImage (CursorPtr pCursor, CARD32 *image)
+{
+    int width = pCursor->bits->width;
+    int height = pCursor->bits->height;
+    int npixels = width * height;
+    
+#ifdef ARGB_CURSOR
+    if (pCursor->bits->argb)
+	memcpy (image, pCursor->bits->argb, npixels * sizeof (CARD32));
+    else
+#endif
+    {
+	unsigned char	*srcLine = pCursor->bits->source;
+	unsigned char	*mskLine = pCursor->bits->mask;
+	int		stride = BitmapBytePad (width);
+	int		x, y;
+	CARD32		fg, bg;
+	
+	fg = (0xff000000 | 
+	      ((pCursor->foreRed & 0xff00) << 8) |
+	      (pCursor->foreGreen & 0xff00) |
+	      (pCursor->foreBlue >> 8));
+	bg = (0xff000000 | 
+	      ((pCursor->backRed & 0xff00) << 8) |
+	      (pCursor->backGreen & 0xff00) |
+	      (pCursor->backBlue >> 8));
+	for (y = 0; y < height; y++)
+	{
+	    for (x = 0; x < width; x++)
+	    {
+		if (GetBit (mskLine, x))
+		{
+		    if (GetBit (srcLine, x))
+			*image++ = fg;
+		    else
+			*image++ = bg;
+		}
+		else
+		    *image++ = 0;
+	    }
+	    srcLine += stride;
+	    mskLine += stride;
+	}
+    }
+}
+
+int
+ProcXFixesGetCursorImage (ClientPtr client)
+{
+/*    REQUEST(xXFixesGetCursorImageReq); */
+    xXFixesGetCursorImageReply	*rep;
+    CursorPtr			pCursor;
+    CARD32			*image;
+    int				npixels, width, height, rc, x, y;
+
+    REQUEST_SIZE_MATCH(xXFixesGetCursorImageReq);
+    pCursor = CursorCurrent[PickPointer(client)->id];
+    if (!pCursor)
+	return BadCursor;
+    rc = XaceHook(XACE_RESOURCE_ACCESS, client, pCursor->id, RT_CURSOR,
+		  pCursor, RT_NONE, NULL, DixReadAccess);
+    if (rc != Success)
+	return rc;
+    GetSpritePosition (PickPointer(client), &x, &y);
+    width = pCursor->bits->width;
+    height = pCursor->bits->height;
+    npixels = width * height;
+    rep = malloc(sizeof (xXFixesGetCursorImageReply) +
+		  npixels * sizeof (CARD32));
+    if (!rep)
+	return BadAlloc;
+
+    rep->type = X_Reply;
+    rep->sequenceNumber = client->sequence;
+    rep->length = npixels;
+    rep->width = width;
+    rep->height = height;
+    rep->x = x;
+    rep->y = y;
+    rep->xhot = pCursor->bits->xhot;
+    rep->yhot = pCursor->bits->yhot; 
+    rep->cursorSerial = pCursor->serialNumber;
+
+    image = (CARD32 *) (rep + 1);
+    CopyCursorToImage (pCursor, image);
+    if (client->swapped)
+    {
+	int n;
+	swaps (&rep->sequenceNumber, n);
+	swapl (&rep->length, n);
+	swaps (&rep->x, n);
+	swaps (&rep->y, n);
+	swaps (&rep->width, n);
+	swaps (&rep->height, n);
+	swaps (&rep->xhot, n);
+	swaps (&rep->yhot, n);
+	swapl (&rep->cursorSerial, n);
+	SwapLongs (image, npixels);
+    }
+    WriteToClient(client, sizeof (xXFixesGetCursorImageReply) +
+			 (npixels << 2), (char *) rep);
+    free(rep);
+    return Success;
+}
+
+int
+SProcXFixesGetCursorImage (ClientPtr client)
+{
+    int n;
+    REQUEST(xXFixesGetCursorImageReq);
+    swaps (&stuff->length, n);
+    return (*ProcXFixesVector[stuff->xfixesReqType]) (client);
+}
+
+int
+ProcXFixesSetCursorName (ClientPtr client)
+{
+    CursorPtr pCursor;
+    char *tchar;
+    REQUEST(xXFixesSetCursorNameReq);
+    Atom atom;
+
+    REQUEST_AT_LEAST_SIZE(xXFixesSetCursorNameReq);
+    VERIFY_CURSOR(pCursor, stuff->cursor, client, DixSetAttrAccess);
+    tchar = (char *) &stuff[1];
+    atom = MakeAtom (tchar, stuff->nbytes, TRUE);
+    if (atom == BAD_RESOURCE)
+	return BadAlloc;
+    
+    pCursor->name = atom;
+    return Success;
+}
+
+int
+SProcXFixesSetCursorName (ClientPtr client)
+{
+    int n;
+    REQUEST(xXFixesSetCursorNameReq);
+
+    swaps (&stuff->length, n);
+    REQUEST_AT_LEAST_SIZE(xXFixesSetCursorNameReq);
+    swapl (&stuff->cursor, n);
+    swaps (&stuff->nbytes, n);
+    return (*ProcXFixesVector[stuff->xfixesReqType]) (client);
+}
+
+int
+ProcXFixesGetCursorName (ClientPtr client)
+{
+    CursorPtr			pCursor;
+    xXFixesGetCursorNameReply	reply;
+    REQUEST(xXFixesGetCursorNameReq);
+    const char *str;
+    int len;
+
+    REQUEST_SIZE_MATCH(xXFixesGetCursorNameReq);
+    VERIFY_CURSOR(pCursor, stuff->cursor, client, DixGetAttrAccess);
+    if (pCursor->name)
+	str = NameForAtom (pCursor->name);
+    else
+	str = "";
+    len = strlen (str);
+    
+    reply.type = X_Reply;
+    reply.length = bytes_to_int32(len);
+    reply.sequenceNumber = client->sequence;
+    reply.atom = pCursor->name;
+    reply.nbytes = len;
+    if (client->swapped)
+    {
+	int n;
+	swaps (&reply.sequenceNumber, n);
+	swapl (&reply.length, n);
+	swapl (&reply.atom, n);
+	swaps (&reply.nbytes, n);
+    }
+    WriteReplyToClient(client, sizeof(xXFixesGetCursorNameReply), &reply);
+    WriteToClient(client, len, str);
+    
+    return Success;
+}
+
+int
+SProcXFixesGetCursorName (ClientPtr client)
+{
+    int n;
+    REQUEST(xXFixesGetCursorNameReq);
+
+    swaps (&stuff->length, n);
+    REQUEST_SIZE_MATCH(xXFixesGetCursorNameReq);
+    swapl (&stuff->cursor, n);
+    return (*ProcXFixesVector[stuff->xfixesReqType]) (client);
+}
+
+int
+ProcXFixesGetCursorImageAndName (ClientPtr client)
+{
+/*    REQUEST(xXFixesGetCursorImageAndNameReq); */
+    xXFixesGetCursorImageAndNameReply	*rep;
+    CursorPtr			pCursor;
+    CARD32			*image;
+    int				npixels;
+    const char			*name;
+    int				nbytes, nbytesRound;
+    int				width, height;
+    int				rc, x, y;
+
+    REQUEST_SIZE_MATCH(xXFixesGetCursorImageAndNameReq);
+    pCursor = CursorCurrent[PickPointer(client)->id];
+    if (!pCursor)
+	return BadCursor;
+    rc = XaceHook(XACE_RESOURCE_ACCESS, client, pCursor->id, RT_CURSOR,
+		  pCursor, RT_NONE, NULL, DixReadAccess|DixGetAttrAccess);
+    if (rc != Success)
+	return rc;
+    GetSpritePosition (PickPointer(client), &x, &y);
+    width = pCursor->bits->width;
+    height = pCursor->bits->height;
+    npixels = width * height;
+    name = pCursor->name ? NameForAtom (pCursor->name) : "";
+    nbytes = strlen (name);
+    nbytesRound = pad_to_int32(nbytes);
+    rep = malloc(sizeof (xXFixesGetCursorImageAndNameReply) +
+		  npixels * sizeof (CARD32) + nbytesRound);
+    if (!rep)
+	return BadAlloc;
+
+    rep->type = X_Reply;
+    rep->sequenceNumber = client->sequence;
+    rep->length = npixels + bytes_to_int32(nbytesRound);
+    rep->width = width;
+    rep->height = height;
+    rep->x = x;
+    rep->y = y;
+    rep->xhot = pCursor->bits->xhot;
+    rep->yhot = pCursor->bits->yhot; 
+    rep->cursorSerial = pCursor->serialNumber;
+    rep->cursorName = pCursor->name;
+    rep->nbytes = nbytes;
+
+    image = (CARD32 *) (rep + 1);
+    CopyCursorToImage (pCursor, image);
+    memcpy ((image + npixels), name, nbytes);
+    if (client->swapped)
+    {
+	int n;
+	swaps (&rep->sequenceNumber, n);
+	swapl (&rep->length, n);
+	swaps (&rep->x, n);
+	swaps (&rep->y, n);
+	swaps (&rep->width, n);
+	swaps (&rep->height, n);
+	swaps (&rep->xhot, n);
+	swaps (&rep->yhot, n);
+	swapl (&rep->cursorSerial, n);
+	swapl (&rep->cursorName, n);
+	swaps (&rep->nbytes, n);
+	SwapLongs (image, npixels);
+    }
+    WriteToClient(client, sizeof (xXFixesGetCursorImageAndNameReply) +
+			 (npixels << 2) + nbytesRound, (char *) rep);
+    free(rep);
+    return Success;
+}
+
+int
+SProcXFixesGetCursorImageAndName (ClientPtr client)
+{
+    int n;
+    REQUEST(xXFixesGetCursorImageAndNameReq);
+    swaps (&stuff->length, n);
+    return (*ProcXFixesVector[stuff->xfixesReqType]) (client);
+}
+
+/*
+ * Find every cursor reference in the system, ask testCursor
+ * whether it should be replaced with a reference to pCursor.
+ */
+
+typedef Bool (*TestCursorFunc) (CursorPtr pOld, pointer closure);
+
+typedef struct {
+    RESTYPE type;
+    TestCursorFunc testCursor;
+    CursorPtr pNew;
+    pointer closure;
+} ReplaceCursorLookupRec, *ReplaceCursorLookupPtr;
+
+static const RESTYPE    CursorRestypes[] = {
+    RT_WINDOW, RT_PASSIVEGRAB, RT_CURSOR
+};
+
+#define NUM_CURSOR_RESTYPES (sizeof (CursorRestypes) / sizeof (CursorRestypes[0]))
+
+static Bool
+ReplaceCursorLookup (pointer value, XID id, pointer closure)
+{
+    ReplaceCursorLookupPtr  rcl = (ReplaceCursorLookupPtr) closure;
+    WindowPtr		    pWin;
+    GrabPtr		    pGrab;
+    CursorPtr		    pCursor = 0, *pCursorRef = 0;
+    XID			    cursor = 0;
+
+    switch (rcl->type) {
+    case RT_WINDOW:
+	pWin = (WindowPtr) value;
+	if (pWin->optional)
+	{
+	    pCursorRef = &pWin->optional->cursor;
+	    pCursor = *pCursorRef;
+	}
+	break;
+    case RT_PASSIVEGRAB:
+	pGrab = (GrabPtr) value;
+	pCursorRef = &pGrab->cursor;
+	pCursor = *pCursorRef;
+	break;
+    case RT_CURSOR:
+	pCursorRef = 0;
+	pCursor = (CursorPtr) value;
+	cursor = id;
+	break;
+    }
+    if (pCursor && pCursor != rcl->pNew)
+    {
+	if ((*rcl->testCursor) (pCursor, rcl->closure))
+	{
+	    rcl->pNew->refcnt++;
+	    /* either redirect reference or update resource database */
+	    if (pCursorRef)
+		*pCursorRef = rcl->pNew;
+	    else
+		ChangeResourceValue (id, RT_CURSOR, rcl->pNew);
+	    FreeCursor (pCursor, cursor);
+	}
+    }
+    return FALSE;   /* keep walking */
+}
+
+static void
+ReplaceCursor (CursorPtr pCursor,
+	       TestCursorFunc testCursor,
+	       pointer closure)
+{
+    int	clientIndex;
+    int resIndex;
+    ReplaceCursorLookupRec  rcl;
+    
+    /* 
+     * Cursors exist only in the resource database, windows and grabs.
+     * All of these are always pointed at by the resource database.  Walk
+     * the whole thing looking for cursors
+     */
+    rcl.testCursor = testCursor;
+    rcl.pNew = pCursor;
+    rcl.closure = closure;
+
+    /* for each client */
+    for (clientIndex = 0; clientIndex < currentMaxClients; clientIndex++)
+    {
+	if (!clients[clientIndex])
+	    continue;
+	for (resIndex = 0; resIndex < NUM_CURSOR_RESTYPES; resIndex++)
+	{
+	    rcl.type = CursorRestypes[resIndex];
+	    /*
+	     * This function walks the entire client resource database
+	     */
+	    LookupClientResourceComplex (clients[clientIndex], 
+					 rcl.type, 
+					 ReplaceCursorLookup,
+					 (pointer) &rcl);
+	}
+    }
+    /* this "knows" that WindowHasNewCursor doesn't depend on it's argument */
+    WindowHasNewCursor (screenInfo.screens[0]->root);
+}
+
+static Bool 
+TestForCursor (CursorPtr pCursor, pointer closure)
+{
+    return (pCursor == (CursorPtr) closure);
+}
+
+int
+ProcXFixesChangeCursor (ClientPtr client)
+{
+    CursorPtr	pSource, pDestination;
+    REQUEST(xXFixesChangeCursorReq);
+
+    REQUEST_SIZE_MATCH(xXFixesChangeCursorReq);
+    VERIFY_CURSOR (pSource, stuff->source, client,
+		   DixReadAccess|DixGetAttrAccess);
+    VERIFY_CURSOR (pDestination, stuff->destination, client,
+		   DixWriteAccess|DixSetAttrAccess);
+
+    ReplaceCursor (pSource, TestForCursor, (pointer) pDestination);
+    return Success;
+}
+
+int
+SProcXFixesChangeCursor (ClientPtr client)
+{
+    int n;
+    REQUEST(xXFixesChangeCursorReq);
+
+    swaps (&stuff->length, n);
+    REQUEST_SIZE_MATCH(xXFixesChangeCursorReq);
+    swapl (&stuff->source, n);
+    swapl (&stuff->destination, n);
+    return (*ProcXFixesVector[stuff->xfixesReqType]) (client);
+}
+
+static Bool
+TestForCursorName (CursorPtr pCursor, pointer closure)
+{
+    Atom *pName = closure;
+    return pCursor->name == *pName;
+}
+
+int
+ProcXFixesChangeCursorByName (ClientPtr client)
+{
+    CursorPtr	pSource;
+    Atom	name;
+    char	*tchar;
+    REQUEST(xXFixesChangeCursorByNameReq);
+
+    REQUEST_FIXED_SIZE(xXFixesChangeCursorByNameReq, stuff->nbytes);
+    VERIFY_CURSOR(pSource, stuff->source, client,
+		  DixReadAccess|DixGetAttrAccess);
+    tchar = (char *) &stuff[1];
+    name = MakeAtom (tchar, stuff->nbytes, FALSE);
+    if (name)
+	ReplaceCursor (pSource, TestForCursorName, &name);
+    return Success;
+}
+
+int
+SProcXFixesChangeCursorByName (ClientPtr client)
+{
+    int n;
+    REQUEST(xXFixesChangeCursorByNameReq);
+
+    swaps (&stuff->length, n);
+    REQUEST_AT_LEAST_SIZE (xXFixesChangeCursorByNameReq);
+    swapl (&stuff->source, n);
+    swaps (&stuff->nbytes, n);
+    return (*ProcXFixesVector[stuff->xfixesReqType]) (client);
+}
+
+/*
+ * Routines for manipulating the per-screen hide counts list.
+ * This list indicates which clients have requested cursor hiding 
+ * for that screen.
+ */
+
+/* Return the screen's hide-counts list element for the given client */
+static CursorHideCountPtr
+findCursorHideCount (ClientPtr pClient, ScreenPtr pScreen) 
+{
+    CursorScreenPtr    cs = GetCursorScreen(pScreen);
+    CursorHideCountPtr pChc;
+
+    for (pChc = cs->pCursorHideCounts; pChc != NULL; pChc = pChc->pNext) {
+	if (pChc->pClient == pClient) {
+	    return pChc;
+	}
+    }
+
+    return NULL;           
+}
+
+static int
+createCursorHideCount (ClientPtr pClient, ScreenPtr pScreen)
+{
+    CursorScreenPtr    cs = GetCursorScreen(pScreen);
+    CursorHideCountPtr pChc;
+
+    pChc = (CursorHideCountPtr) malloc(sizeof(CursorHideCountRec));
+    if (pChc == NULL) {
+	return BadAlloc;
+    }
+    pChc->pClient = pClient;
+    pChc->pScreen = pScreen;
+    pChc->hideCount = 1;
+    pChc->resource = FakeClientID(pClient->index);
+    pChc->pNext = cs->pCursorHideCounts;
+    cs->pCursorHideCounts = pChc;
+    
+    /* 
+     * Create a resource for this element so it can be deleted
+     * when the client goes away.
+     */
+    if (!AddResource (pChc->resource, CursorHideCountType, 
+		      (pointer) pChc)) {
+	free(pChc);
+	return BadAlloc;
+    }
+
+    return Success;
+}
+
+/* 
+ * Delete the given hide-counts list element from its screen list.
+ */
+static void
+deleteCursorHideCount (CursorHideCountPtr pChcToDel, ScreenPtr pScreen)
+{
+    CursorScreenPtr    cs = GetCursorScreen(pScreen);
+    CursorHideCountPtr pChc, pNext;
+    CursorHideCountPtr pChcLast = NULL;
+
+    pChc = cs->pCursorHideCounts;
+    while (pChc != NULL) {
+	pNext = pChc->pNext;
+	if (pChc == pChcToDel) {
+	    free(pChc);
+	    if (pChcLast == NULL) {
+		cs->pCursorHideCounts = pNext;
+	    } else {
+		pChcLast->pNext = pNext;
+	    }
+	    return;
+	}
+	pChcLast = pChc;
+	pChc = pNext;
+    }
+}
+
+/* 
+ * Delete all the hide-counts list elements for this screen.
+ */
+static void
+deleteCursorHideCountsForScreen (ScreenPtr pScreen)
+{
+    CursorScreenPtr    cs = GetCursorScreen(pScreen);
+    CursorHideCountPtr pChc, pTmp;
+
+    pChc = cs->pCursorHideCounts;
+    while (pChc != NULL) {
+	pTmp = pChc->pNext;
+	FreeResource(pChc->resource, 0);
+	pChc = pTmp;
+    }
+    cs->pCursorHideCounts = NULL;   
+}
+
+int 
+ProcXFixesHideCursor (ClientPtr client) 
+{
+    WindowPtr pWin;
+    CursorHideCountPtr pChc;
+    REQUEST(xXFixesHideCursorReq);
+    int ret;
+
+    REQUEST_SIZE_MATCH (xXFixesHideCursorReq);
+
+    ret = dixLookupResourceByType((pointer *)&pWin, stuff->window, RT_WINDOW,
+			    client, DixGetAttrAccess);
+    if (ret != Success) {
+	client->errorValue = stuff->window;
+	return ret;
+    }
+
+    /* 
+     * Has client hidden the cursor before on this screen? 
+     * If so, just increment the count. 
+     */
+
+    pChc = findCursorHideCount(client, pWin->drawable.pScreen);
+    if (pChc != NULL) {
+	pChc->hideCount++;
+	return Success;
+    }
+
+    /* 
+     * This is the first time this client has hid the cursor 
+     * for this screen.
+     */
+    ret = XaceHook(XACE_SCREEN_ACCESS, client, pWin->drawable.pScreen,
+		   DixHideAccess);
+    if (ret != Success)
+	return ret;
+
+    ret = createCursorHideCount(client, pWin->drawable.pScreen);
+
+    if (ret == Success) {
+	DeviceIntPtr dev;
+	for (dev = inputInfo.devices; dev; dev = dev->next)
+	{
+	    if (IsMaster(dev) && IsPointerDevice(dev))
+		CursorDisplayCursor(dev, pWin->drawable.pScreen, CursorCurrent[dev->id]);
+	}
+    }
+
+    return ret;
+}
+
+int 
+SProcXFixesHideCursor (ClientPtr client) 
+{
+    int n;
+    REQUEST(xXFixesHideCursorReq);
+
+    swaps (&stuff->length, n);
+    REQUEST_SIZE_MATCH (xXFixesHideCursorReq);
+    swapl (&stuff->window, n);
+    return (*ProcXFixesVector[stuff->xfixesReqType]) (client);
+}
+
+int 
+ProcXFixesShowCursor (ClientPtr client) 
+{
+    WindowPtr pWin;
+    CursorHideCountPtr pChc;
+    int rc;
+    REQUEST(xXFixesShowCursorReq);
+
+    REQUEST_SIZE_MATCH (xXFixesShowCursorReq);
+
+    rc = dixLookupResourceByType((pointer *)&pWin, stuff->window, RT_WINDOW,
+			   client, DixGetAttrAccess);
+    if (rc != Success) {
+	client->errorValue = stuff->window;
+	return rc;
+    }
+
+    /* 
+     * Has client hidden the cursor on this screen?
+     * If not, generate an error.
+     */
+    pChc = findCursorHideCount(client, pWin->drawable.pScreen);
+    if (pChc == NULL) {
+	return BadMatch;
+    }
+
+    rc = XaceHook(XACE_SCREEN_ACCESS, client, pWin->drawable.pScreen,
+		  DixShowAccess);
+    if (rc != Success)
+	return rc;
+
+    pChc->hideCount--;
+    if (pChc->hideCount <= 0) {
+	FreeResource(pChc->resource, 0);
+    }
+
+    return Success;
+}
+
+int 
+SProcXFixesShowCursor (ClientPtr client) 
+{
+    int n;
+    REQUEST(xXFixesShowCursorReq);
+
+    swaps (&stuff->length, n);
+    REQUEST_SIZE_MATCH (xXFixesShowCursorReq);
+    swapl (&stuff->window, n);
+    return (*ProcXFixesVector[stuff->xfixesReqType]) (client);
+}
+
+static int
+CursorFreeClient (pointer data, XID id)
+{
+    CursorEventPtr	old = (CursorEventPtr) data;
+    CursorEventPtr	*prev, e;
+    
+    for (prev = &cursorEvents; (e = *prev); prev = &e->next)
+    {
+	if (e == old)
+	{
+	    *prev = e->next;
+	    free(e);
+	    break;
+	}
+    }
+    return 1;
+}
+
+static int
+CursorFreeHideCount (pointer data, XID id)
+{
+    CursorHideCountPtr pChc = (CursorHideCountPtr) data;
+    ScreenPtr pScreen = pChc->pScreen;
+    DeviceIntPtr dev;
+
+    deleteCursorHideCount(pChc, pChc->pScreen);
+    for (dev = inputInfo.devices; dev; dev = dev->next)
+    {
+        if (IsMaster(dev) && IsPointerDevice(dev))
+            CursorDisplayCursor(dev, pScreen, CursorCurrent[dev->id]);
+    }
+
+    return 1;
+}
+
+static int
+CursorFreeWindow (pointer data, XID id)
+{
+    WindowPtr		pWindow = (WindowPtr) data;
+    CursorEventPtr	e, next;
+
+    for (e = cursorEvents; e; e = next)
+    {
+	next = e->next;
+	if (e->pWindow == pWindow)
+	{
+	    FreeResource (e->clientResource, 0);
+	}
+    }
+    return 1;
+}
+
+static BOOL
+barrier_is_horizontal(const struct PointerBarrier *barrier)
+{
+    return barrier->y1 == barrier->y2;
+}
+
+static BOOL
+barrier_is_vertical(const struct PointerBarrier *barrier)
+{
+    return barrier->x1 == barrier->x2;
+}
+
+/**
+ * @return The set of barrier movement directions the movement vector
+ * x1/y1 → x2/y2 represents.
+ */
+int
+barrier_get_direction(int x1, int y1, int x2, int y2)
+{
+    int direction = 0;
+
+    /* which way are we trying to go */
+    if (x2 > x1)
+	direction |= BarrierPositiveX;
+    if (x2 < x1)
+	direction |= BarrierNegativeX;
+    if (y2 > y1)
+	direction |= BarrierPositiveY;
+    if (y2 < y1)
+	direction |= BarrierNegativeY;
+
+    return direction;
+}
+
+/**
+ * Test if the barrier may block movement in the direction defined by
+ * x1/y1 → x2/y2. This function only tests whether the directions could be
+ * blocked, it does not test if the barrier actually blocks the movement.
+ *
+ * @return TRUE if the barrier blocks the direction of movement or FALSE
+ * otherwise.
+ */
+BOOL
+barrier_is_blocking_direction(const struct PointerBarrier *barrier, int direction)
+{
+    /* Barriers define which way is ok, not which way is blocking */
+    return (barrier->directions & direction) != direction;
+}
+
+/**
+ * Test if the movement vector x1/y1 → x2/y2 is intersecting with the
+ * barrier. A movement vector with the startpoint or endpoint adjacent to
+ * the barrier itself counts as intersecting.
+ *
+ * @param x1 X start coordinate of movement vector
+ * @param y1 Y start coordinate of movement vector
+ * @param x2 X end coordinate of movement vector
+ * @param y2 Y end coordinate of movement vector
+ * @param[out] distance The distance between the start point and the
+ * intersection with the barrier (if applicable).
+ * @return TRUE if the barrier intersects with the given vector
+ */
+BOOL
+barrier_is_blocking(const struct PointerBarrier *barrier,
+		    int x1, int y1, int x2, int y2,
+		    double *distance)
+{
+    BOOL rc = FALSE;
+    float ua, ub, ud;
+    int dir = barrier_get_direction(x1, y1, x2, y2);
+
+    /* Algorithm below doesn't handle edge cases well, hence the extra
+     * checks. */
+    if (barrier_is_vertical(barrier)) {
+	/* handle immediate barrier adjacency, moving away */
+	if (dir & BarrierPositiveX && x1 == barrier->x1)
+	    return FALSE;
+	if (dir & BarrierNegativeX && x1 == (barrier->x1 - 1))
+	    return FALSE;
+	/* startpoint adjacent to barrier, moving towards -> block */
+	if (x1 == barrier->x1 && y1 >= barrier->y1 && y1 <= barrier->y2) {
+	    *distance = 0;
+	    return TRUE;
+	}
+    } else {
+	/* handle immediate barrier adjacency, moving away */
+	if (dir & BarrierPositiveY && y1 == barrier->y1)
+	    return FALSE;
+	if (dir & BarrierNegativeY && y1 == (barrier->y1 - 1))
+	    return FALSE;
+	/* startpoint adjacent to barrier, moving towards -> block */
+	if (y1 == barrier->y1 && x1 >= barrier->x1 && x1 <= barrier->x2) {
+	    *distance = 0;
+	    return TRUE;
+        }
+    }
+
+    /* not an edge case, compute distance */
+    ua = 0;
+    ud = (barrier->y2 - barrier->y1) * (x2 - x1) - (barrier->x2 - barrier->x1) * (y2 - y1);
+    if (ud != 0) {
+	ua = ((barrier->x2 - barrier->x1) * (y1 - barrier->y1) -
+	     (barrier->y2 - barrier->y1) * (x1 - barrier->x1)) / ud;
+	ub = ((x2 - x1) * (y1 - barrier->y1) -
+	     (y2 - y1) * (x1 - barrier->x1)) / ud;
+	if (ua < 0 || ua > 1 || ub < 0 || ub > 1)
+	    ua = 0;
+    }
+
+    if (ua > 0 && ua <= 1)
+    {
+	double ix = barrier->x1 + ua * (barrier->x2 - barrier->x1);
+	double iy = barrier->y1 + ua * (barrier->y2 - barrier->y1);
+
+	*distance = sqrt(pow(x1 - ix, 2) + pow(y1 - iy, 2));
+	rc = TRUE;
+    }
+
+    return rc;
+}
+
+/**
+ * Find the nearest barrier that is blocking movement from x1/y1 to x2/y2.
+ *
+ * @param dir Only barriers blocking movement in direction dir are checked
+ * @param x1 X start coordinate of movement vector
+ * @param y1 Y start coordinate of movement vector
+ * @param x2 X end coordinate of movement vector
+ * @param y2 Y end coordinate of movement vector
+ * @return The barrier nearest to the movement origin that blocks this movement.
+ */
+static struct PointerBarrier*
+barrier_find_nearest(CursorScreenPtr cs, int dir,
+		     int x1, int y1, int x2, int y2)
+{
+    struct PointerBarrierClient *c;
+    struct PointerBarrier *nearest = NULL;
+    double min_distance = INT_MAX; /* can't get higher than that in X anyway */
+
+    list_for_each_entry(c, &cs->barriers, entry) {
+	struct PointerBarrier *b = &c->barrier;
+	double distance;
+
+	if (!barrier_is_blocking_direction(b, dir))
+	    continue;
+
+	if (barrier_is_blocking(b, x1, y1, x2, y2, &distance))
+	{
+	    if (min_distance > distance)
+	    {
+		min_distance = distance;
+		nearest = b;
+	    }
+	}
+    }
+
+    return nearest;
+}
+
+/**
+ * Clamp to the given barrier given the movement direction specified in dir.
+ *
+ * @param barrier The barrier to clamp to
+ * @param dir The movement direction
+ * @param[out] x The clamped x coordinate.
+ * @param[out] y The clamped x coordinate.
+ */
+void
+barrier_clamp_to_barrier(struct PointerBarrier *barrier, int dir, int *x, int *y)
+{
+    if (barrier_is_vertical(barrier))
+    {
+	if ((dir & BarrierNegativeX) & ~barrier->directions)
+	    *x = barrier->x1;
+	if ((dir & BarrierPositiveX) & ~barrier->directions)
+	    *x = barrier->x1 - 1;
+    }
+    if (barrier_is_horizontal(barrier))
+    {
+	if ((dir & BarrierNegativeY) & ~barrier->directions)
+	    *y = barrier->y1;
+	if ((dir & BarrierPositiveY) & ~barrier->directions)
+	    *y = barrier->y1 - 1;
+    }
+}
+
+static void
+CursorConstrainCursorHarder(DeviceIntPtr dev, ScreenPtr screen, int mode, int *x, int *y)
+{
+    CursorScreenPtr cs = GetCursorScreen(screen);
+
+    if (!list_is_empty(&cs->barriers) && !IsFloating(dev) && mode == Relative) {
+	int ox, oy;
+	int dir;
+	struct PointerBarrier *nearest = NULL;
+
+	/* where are we coming from */
+	miPointerGetPosition(dev, &ox, &oy);
+
+	/* How this works:
+	 * Given the origin and the movement vector, get the nearest barrier
+	 * to the origin that is blocking the movement.
+	 * Clamp to that barrier.
+	 * Then, check from the clamped intersection to the original
+	 * destination, again finding the nearest barrier and clamping.
+	 */
+	dir = barrier_get_direction(ox, oy, *x, *y);
+
+	nearest = barrier_find_nearest(cs, dir, ox, oy, *x, *y);
+	if (nearest) {
+	    barrier_clamp_to_barrier(nearest, dir, x, y);
+
+	    if (barrier_is_vertical(nearest)) {
+		dir &= ~(BarrierNegativeX | BarrierPositiveX);
+		ox = *x;
+	    } else if (barrier_is_horizontal(nearest)) {
+		dir &= ~(BarrierNegativeY | BarrierPositiveY);
+		oy = *y;
+	    }
+
+	    nearest = barrier_find_nearest(cs, dir, ox, oy, *x, *y);
+	    if (nearest) {
+		barrier_clamp_to_barrier(nearest, dir, x, y);
+	    }
+	}
+    }
+
+    if (cs->ConstrainCursorHarder) {
+	screen->ConstrainCursorHarder = cs->ConstrainCursorHarder;
+	screen->ConstrainCursorHarder(dev, screen, mode, x, y);
+	screen->ConstrainCursorHarder = CursorConstrainCursorHarder;
+    }
+}
+
+static struct PointerBarrierClient *
+CreatePointerBarrierClient(ScreenPtr screen, ClientPtr client,
+			   xXFixesCreatePointerBarrierReq *stuff)
+{
+    CursorScreenPtr cs = GetCursorScreen(screen);
+    struct PointerBarrierClient *ret = malloc(sizeof(*ret));
+
+    if (ret) {
+	ret->screen = screen;
+	ret->barrier.x1 = min(stuff->x1, stuff->x2);
+	ret->barrier.x2 = max(stuff->x1, stuff->x2);
+	ret->barrier.y1 = min(stuff->y1, stuff->y2);
+	ret->barrier.y2 = max(stuff->y1, stuff->y2);
+	ret->barrier.directions = stuff->directions & 0x0f;
+	if (barrier_is_horizontal(&ret->barrier))
+	    ret->barrier.directions &= ~(BarrierPositiveX | BarrierNegativeX);
+	if (barrier_is_vertical(&ret->barrier))
+	    ret->barrier.directions &= ~(BarrierPositiveY | BarrierNegativeY);
+	list_add(&ret->entry, &cs->barriers);
+    }
+
+    return ret;
+}
+
+int
+ProcXFixesCreatePointerBarrier (ClientPtr client)
+{
+    int err;
+    WindowPtr pWin;
+    struct PointerBarrierClient *barrier;
+    struct PointerBarrier b;
+    REQUEST (xXFixesCreatePointerBarrierReq);
+
+    REQUEST_SIZE_MATCH(xXFixesCreatePointerBarrierReq);
+    LEGAL_NEW_RESOURCE(stuff->barrier, client);
+
+    err = dixLookupWindow(&pWin, stuff->window, client, DixReadAccess);
+    if (err != Success) {
+	client->errorValue = stuff->window;
+	return err;
+    }
+
+    /* This sure does need fixing. */
+    if (stuff->num_devices)
+	return BadImplementation;
+
+    b.x1 = stuff->x1;
+    b.x2 = stuff->x2;
+    b.y1 = stuff->y1;
+    b.y2 = stuff->y2;
+
+    if (!barrier_is_horizontal(&b) && !barrier_is_vertical(&b))
+	return BadValue;
+
+    /* no 0-sized barriers */
+    if (barrier_is_horizontal(&b) && barrier_is_vertical(&b))
+	return BadValue;
+
+    if (!(barrier = CreatePointerBarrierClient(pWin->drawable.pScreen,
+					       client, stuff)))
+	return BadAlloc;
+
+    if (!AddResource(stuff->barrier, PointerBarrierType, &barrier->barrier))
+	return BadAlloc;
+
+    return Success;
+}
+
+int
+SProcXFixesCreatePointerBarrier (ClientPtr client)
+{
+    int n;
+    REQUEST(xXFixesCreatePointerBarrierReq);
+
+    swaps(&stuff->length, n);
+    REQUEST_SIZE_MATCH(xXFixesCreatePointerBarrierReq);
+    swapl(&stuff->barrier, n);
+    swapl(&stuff->window, n);
+    swaps(&stuff->x1, n);
+    swaps(&stuff->y1, n);
+    swaps(&stuff->x2, n);
+    swaps(&stuff->y2, n);
+    swapl(&stuff->directions, n);
+    return ProcXFixesVector[stuff->xfixesReqType](client);
+}
+
+static int
+CursorFreeBarrier(void *data, XID id)
+{
+    struct PointerBarrierClient *b = NULL, *barrier;
+    ScreenPtr screen;
+    CursorScreenPtr cs;
+
+    barrier = container_of(data, struct PointerBarrierClient, barrier);
+    screen = barrier->screen;
+    cs = GetCursorScreen(screen);
+
+    /* find and unlink from the screen private */
+    list_for_each_entry(b, &cs->barriers, entry) {
+	if (b == barrier) {
+	    list_del(&b->entry);
+	    break;
+	}
+    }
+
+    free(barrier);
+    return Success;
+}
+
+int
+ProcXFixesDestroyPointerBarrier (ClientPtr client)
+{
+    int err;
+    void *barrier;
+    REQUEST (xXFixesDestroyPointerBarrierReq);
+
+    REQUEST_SIZE_MATCH(xXFixesDestroyPointerBarrierReq);
+
+    err = dixLookupResourceByType((void **)&barrier, stuff->barrier,
+				  PointerBarrierType, client,
+				  DixDestroyAccess);
+    if (err != Success) {
+	client->errorValue = stuff->barrier;
+	return err;
+    }
+
+    FreeResource(stuff->barrier, RT_NONE);
+    return Success;
+}
+
+int
+SProcXFixesDestroyPointerBarrier (ClientPtr client)
+{
+    int n;
+    REQUEST(xXFixesDestroyPointerBarrierReq);
+
+    swaps(&stuff->length, n);
+    REQUEST_SIZE_MATCH(xXFixesDestroyPointerBarrierReq);
+    swapl(&stuff->barrier, n);
+    return ProcXFixesVector[stuff->xfixesReqType](client);
+}
+
+Bool
+XFixesCursorInit (void)
+{
+    int	i;
+
+    if (party_like_its_1989)
+	CursorVisible = EnableCursor;
+    
+    if (!dixRegisterPrivateKey(&CursorScreenPrivateKeyRec, PRIVATE_SCREEN, 0))
+	return FALSE;
+
+    for (i = 0; i < screenInfo.numScreens; i++)
+    {
+	ScreenPtr	pScreen = screenInfo.screens[i];
+	CursorScreenPtr	cs;
+
+	cs = (CursorScreenPtr) calloc(1, sizeof (CursorScreenRec));
+	if (!cs)
+	    return FALSE;
+	list_init(&cs->barriers);
+	Wrap (cs, pScreen, CloseScreen, CursorCloseScreen);
+	Wrap (cs, pScreen, DisplayCursor, CursorDisplayCursor);
+	Wrap (cs, pScreen, ConstrainCursorHarder, CursorConstrainCursorHarder);
+	cs->pCursorHideCounts = NULL;
+	SetCursorScreen (pScreen, cs);
+    }
+    CursorClientType = CreateNewResourceType(CursorFreeClient,
+					     "XFixesCursorClient");
+    CursorHideCountType = CreateNewResourceType(CursorFreeHideCount,
+						"XFixesCursorHideCount");
+    CursorWindowType = CreateNewResourceType(CursorFreeWindow,
+					     "XFixesCursorWindow");
+    PointerBarrierType = CreateNewResourceType(CursorFreeBarrier,
+					      "XFixesPointerBarrier");
+
+    return CursorClientType && CursorHideCountType && CursorWindowType &&
+	   PointerBarrierType;
+}
+
diff --git a/xorg-server/xfixes/xfixes.c b/xorg-server/xfixes/xfixes.c
index e164aa9d1..e433b6b39 100644
--- a/xorg-server/xfixes/xfixes.c
+++ b/xorg-server/xfixes/xfixes.c
@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2010 Red Hat, Inc.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -47,10 +48,6 @@
 
 #include "xfixesint.h"
 #include "protocol-versions.h"
-/*
- * Must use these instead of the constants from xfixeswire.h.  They advertise
- * what we implement, not what the protocol headers define.
- */
 
 static unsigned char	XFixesReqCode;
 int		XFixesEventBase;
@@ -97,11 +94,12 @@ ProcXFixesQueryVersion(ClientPtr client)
 
 /* Major version controls available requests */
 static const int version_requests[] = {
-    X_XFixesQueryVersion,	/* before client sends QueryVersion */
-    X_XFixesGetCursorImage,	/* Version 1 */
-    X_XFixesChangeCursorByName,	/* Version 2 */
-    X_XFixesExpandRegion,	/* Version 3 */
-    X_XFixesShowCursor,	        /* Version 4 */
+    X_XFixesQueryVersion,	    /* before client sends QueryVersion */
+    X_XFixesGetCursorImage,	    /* Version 1 */
+    X_XFixesChangeCursorByName,	    /* Version 2 */
+    X_XFixesExpandRegion,	    /* Version 3 */
+    X_XFixesShowCursor,		    /* Version 4 */
+    X_XFixesDestroyPointerBarrier,  /* Version 5 */
 };
 
 #define NUM_VERSION_REQUESTS	(sizeof (version_requests) / sizeof (version_requests[0]))
@@ -142,6 +140,9 @@ int	(*ProcXFixesVector[XFixesNumberRequests])(ClientPtr) = {
 /*************** Version 4 ****************/
     ProcXFixesHideCursor,
     ProcXFixesShowCursor,
+/*************** Version 5 ****************/
+    ProcXFixesCreatePointerBarrier,
+    ProcXFixesDestroyPointerBarrier,
 };
 
 static int
@@ -205,6 +206,9 @@ static int (*SProcXFixesVector[XFixesNumberRequests])(ClientPtr) = {
 /*************** Version 4 ****************/
     SProcXFixesHideCursor,
     SProcXFixesShowCursor,
+/*************** Version 5 ****************/
+    SProcXFixesCreatePointerBarrier,
+    SProcXFixesDestroyPointerBarrier,
 };
 
 static int
@@ -260,6 +264,8 @@ XFixesExtensionInit(void)
 	EventSwapVector[XFixesEventBase + XFixesCursorNotify] =
 	    (EventSwapPtr) SXFixesCursorNotifyEvent;
 	SetResourceTypeErrorValue(RegionResType, XFixesErrorBase + BadRegion);
+	SetResourceTypeErrorValue(PointerBarrierType,
+				  XFixesErrorBase + BadBarrier);
     }
 }
 
diff --git a/xorg-server/xfixes/xfixes.h b/xorg-server/xfixes/xfixes.h
index f834305bf..5765e64b5 100644
--- a/xorg-server/xfixes/xfixes.h
+++ b/xorg-server/xfixes/xfixes.h
@@ -1,55 +1,72 @@
-/*
- * Copyright © 2002 Keith Packard
- *
- * 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, and that the name of Keith Packard not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission.  Keith Packard makes no
- * representations about the suitability of this software for any purpose.  It
- * is provided "as is" without express or implied warranty.
- *
- * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL KEITH 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.
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#ifndef _XFIXES_H_
-#define _XFIXES_H_
-
-#include "resource.h"
-
-extern _X_EXPORT RESTYPE RegionResType;
-extern _X_EXPORT int XFixesErrorBase;
-
-#define VERIFY_REGION(pRegion, rid, client, mode)			\
-    do {								\
-	int err;							\
-	err = dixLookupResourceByType((pointer *) &pRegion, rid,	\
-				      RegionResType, client, mode);	\
-	if (err != Success) {						\
-	    client->errorValue = rid;					\
-	    return err;							\
-	}								\
-    } while (0)
-
-#define VERIFY_REGION_OR_NONE(pRegion, rid, client, mode) { \
-    pRegion = 0; \
-    if (rid) VERIFY_REGION(pRegion, rid, client, mode); \
-}
-
-extern _X_EXPORT RegionPtr
-XFixesRegionCopy (RegionPtr pRegion);
-
-
-#endif /* _XFIXES_H_ */
+/*
+ * Copyright © 2002 Keith Packard
+ *
+ * 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, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Keith Packard makes no
+ * representations about the suitability of this software for any purpose.  It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH 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.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#ifndef _XFIXES_H_
+#define _XFIXES_H_
+
+#include "resource.h"
+
+extern _X_EXPORT RESTYPE RegionResType;
+extern _X_EXPORT RESTYPE PointerBarrierType;
+extern _X_EXPORT int XFixesErrorBase;
+
+#define VERIFY_REGION(pRegion, rid, client, mode)			\
+    do {								\
+	int err;							\
+	err = dixLookupResourceByType((pointer *) &pRegion, rid,	\
+				      RegionResType, client, mode);	\
+	if (err != Success) {						\
+	    client->errorValue = rid;					\
+	    return err;							\
+	}								\
+    } while (0)
+
+#define VERIFY_REGION_OR_NONE(pRegion, rid, client, mode) { \
+    pRegion = 0; \
+    if (rid) VERIFY_REGION(pRegion, rid, client, mode); \
+}
+
+extern _X_EXPORT RegionPtr
+XFixesRegionCopy (RegionPtr pRegion);
+
+struct PointerBarrier {
+    CARD16 x1, x2, y1, y2;
+    CARD32 directions;
+};
+
+
+extern int
+barrier_get_direction(int, int, int, int);
+extern BOOL
+barrier_is_blocking(const struct PointerBarrier*, int, int, int, int, double*);
+extern BOOL
+barrier_is_blocking_direction(const struct PointerBarrier*, int);
+extern void
+barrier_clamp_to_barrier(struct PointerBarrier *barrier, int dir, int *x, int *y);
+
+
+
+#endif /* _XFIXES_H_ */
diff --git a/xorg-server/xfixes/xfixesint.h b/xorg-server/xfixes/xfixesint.h
index a2a8e4163..6ba276e8c 100644
--- a/xorg-server/xfixes/xfixesint.h
+++ b/xorg-server/xfixes/xfixesint.h
@@ -1,285 +1,301 @@
-/*
- * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
- *
- * Copyright © 2002 Keith Packard
- *
- * 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, and that the name of Keith Packard not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission.  Keith Packard makes no
- * representations about the suitability of this software for any purpose.  It
- * is provided "as is" without express or implied warranty.
- *
- * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL KEITH 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.
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#ifndef _XFIXESINT_H_
-#define _XFIXESINT_H_
-
-#include <X11/X.h>
-#include <X11/Xproto.h>
-#include "misc.h"
-#include "os.h"
-#include "dixstruct.h"
-#include "extnsionst.h"
-#include <X11/extensions/xfixesproto.h>
-#include "windowstr.h"
-#include "selection.h"
-#include "xfixes.h"
-
-extern int		XFixesEventBase;
-
-typedef struct _XFixesClient {
-    CARD32	major_version;
-    CARD32	minor_version;
-} XFixesClientRec, *XFixesClientPtr;
-
-#define GetXFixesClient(pClient) ((XFixesClientPtr)dixLookupPrivate(&(pClient)->devPrivates, XFixesClientPrivateKey))
-
-extern int	(*ProcXFixesVector[XFixesNumberRequests])(ClientPtr);
-
-/* Initialize extension at server startup time */
-
-void
-XFixesExtensionInit(void);
-
-/* Save set */
-int
-ProcXFixesChangeSaveSet(ClientPtr client);
-    
-int
-SProcXFixesChangeSaveSet(ClientPtr client);
-    
-/* Selection events */
-int
-ProcXFixesSelectSelectionInput (ClientPtr client);
-
-int
-SProcXFixesSelectSelectionInput (ClientPtr client);
-
-void
-SXFixesSelectionNotifyEvent (xXFixesSelectionNotifyEvent *from,
-			     xXFixesSelectionNotifyEvent *to);
-Bool
-XFixesSelectionInit (void);
-
-/* Cursor notification */
-Bool
-XFixesCursorInit (void);
-    
-int
-ProcXFixesSelectCursorInput (ClientPtr client);
-
-int
-SProcXFixesSelectCursorInput (ClientPtr client);
-
-void
-SXFixesCursorNotifyEvent (xXFixesCursorNotifyEvent *from,
-			  xXFixesCursorNotifyEvent *to);
-
-int
-ProcXFixesGetCursorImage (ClientPtr client);
-
-int
-SProcXFixesGetCursorImage (ClientPtr client);
-
-/* Cursor names (Version 2) */
-
-int
-ProcXFixesSetCursorName (ClientPtr client);
-
-int
-SProcXFixesSetCursorName (ClientPtr client);
-
-int
-ProcXFixesGetCursorName (ClientPtr client);
-
-int
-SProcXFixesGetCursorName (ClientPtr client);
-
-int
-ProcXFixesGetCursorImageAndName (ClientPtr client);
-
-int
-SProcXFixesGetCursorImageAndName (ClientPtr client);
-
-/* Cursor replacement (Version 2) */
-
-int
-ProcXFixesChangeCursor (ClientPtr client);
-
-int
-SProcXFixesChangeCursor (ClientPtr client);
-
-int
-ProcXFixesChangeCursorByName (ClientPtr client);
-
-int
-SProcXFixesChangeCursorByName (ClientPtr client);
-
-/* Region objects (Version 2* */
-Bool
-XFixesRegionInit (void);
-
-int
-ProcXFixesCreateRegion (ClientPtr client);
-
-int
-SProcXFixesCreateRegion (ClientPtr client);
-
-int
-ProcXFixesCreateRegionFromBitmap (ClientPtr client);
-
-int
-SProcXFixesCreateRegionFromBitmap (ClientPtr client);
-
-int
-ProcXFixesCreateRegionFromWindow (ClientPtr client);
-
-int
-SProcXFixesCreateRegionFromWindow (ClientPtr client);
-
-int
-ProcXFixesCreateRegionFromGC (ClientPtr client);
-
-int
-SProcXFixesCreateRegionFromGC (ClientPtr client);
-
-int
-ProcXFixesCreateRegionFromPicture (ClientPtr client);
-
-int
-SProcXFixesCreateRegionFromPicture (ClientPtr client);
-
-int
-ProcXFixesDestroyRegion (ClientPtr client);
-
-int
-SProcXFixesDestroyRegion (ClientPtr client);
-
-int
-ProcXFixesSetRegion (ClientPtr client);
-
-int
-SProcXFixesSetRegion (ClientPtr client);
-
-int
-ProcXFixesCopyRegion (ClientPtr client);
-
-int
-SProcXFixesCopyRegion (ClientPtr client);
-
-int
-ProcXFixesCombineRegion (ClientPtr client);
-
-int
-SProcXFixesCombineRegion (ClientPtr client);
-
-int
-ProcXFixesInvertRegion (ClientPtr client);
-
-int
-SProcXFixesInvertRegion (ClientPtr client);
-
-int
-ProcXFixesTranslateRegion (ClientPtr client);
-
-int
-SProcXFixesTranslateRegion (ClientPtr client);
-
-int
-ProcXFixesRegionExtents (ClientPtr client);
-
-int
-SProcXFixesRegionExtents (ClientPtr client);
-
-int
-ProcXFixesFetchRegion (ClientPtr client);
-
-int
-SProcXFixesFetchRegion (ClientPtr client);
-
-int
-ProcXFixesSetGCClipRegion (ClientPtr client);
-
-int
-SProcXFixesSetGCClipRegion (ClientPtr client);
-
-int
-ProcXFixesSetWindowShapeRegion (ClientPtr client);
-
-int
-SProcXFixesSetWindowShapeRegion (ClientPtr client);
-
-int
-ProcXFixesSetPictureClipRegion (ClientPtr client);
-
-int
-SProcXFixesSetPictureClipRegion (ClientPtr client);
-
-int
-ProcXFixesExpandRegion (ClientPtr client);
-
-int
-SProcXFixesExpandRegion (ClientPtr client);
-
-int
-PanoramiXFixesSetGCClipRegion (ClientPtr client);
-
-int
-PanoramiXFixesSetWindowShapeRegion (ClientPtr client);
-
-int
-PanoramiXFixesSetPictureClipRegion (ClientPtr client);
-
-/* Cursor Visibility (Version 4) */
-
-int 
-ProcXFixesHideCursor (ClientPtr client);
-
-int 
-SProcXFixesHideCursor (ClientPtr client);
-
-int 
-ProcXFixesShowCursor (ClientPtr client);
-
-int 
-SProcXFixesShowCursor (ClientPtr client);
-
-extern int (*PanoramiXSaveXFixesVector[XFixesNumberRequests])(ClientPtr);
-void PanoramiXFixesInit (void);
-void PanoramiXFixesReset (void);
-
-#endif /* _XFIXESINT_H_ */
+/*
+ * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2010 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Copyright © 2002 Keith Packard
+ *
+ * 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, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Keith Packard makes no
+ * representations about the suitability of this software for any purpose.  It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH 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.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#ifndef _XFIXESINT_H_
+#define _XFIXESINT_H_
+
+#include <X11/X.h>
+#include <X11/Xproto.h>
+#include "misc.h"
+#include "os.h"
+#include "dixstruct.h"
+#include "extnsionst.h"
+#include <X11/extensions/xfixesproto.h>
+#include "windowstr.h"
+#include "selection.h"
+#include "xfixes.h"
+
+extern int		XFixesEventBase;
+
+typedef struct _XFixesClient {
+    CARD32	major_version;
+    CARD32	minor_version;
+} XFixesClientRec, *XFixesClientPtr;
+
+#define GetXFixesClient(pClient) ((XFixesClientPtr)dixLookupPrivate(&(pClient)->devPrivates, XFixesClientPrivateKey))
+
+extern int	(*ProcXFixesVector[XFixesNumberRequests])(ClientPtr);
+
+/* Initialize extension at server startup time */
+
+void
+XFixesExtensionInit(void);
+
+/* Save set */
+int
+ProcXFixesChangeSaveSet(ClientPtr client);
+    
+int
+SProcXFixesChangeSaveSet(ClientPtr client);
+    
+/* Selection events */
+int
+ProcXFixesSelectSelectionInput (ClientPtr client);
+
+int
+SProcXFixesSelectSelectionInput (ClientPtr client);
+
+void
+SXFixesSelectionNotifyEvent (xXFixesSelectionNotifyEvent *from,
+			     xXFixesSelectionNotifyEvent *to);
+Bool
+XFixesSelectionInit (void);
+
+/* Cursor notification */
+Bool
+XFixesCursorInit (void);
+    
+int
+ProcXFixesSelectCursorInput (ClientPtr client);
+
+int
+SProcXFixesSelectCursorInput (ClientPtr client);
+
+void
+SXFixesCursorNotifyEvent (xXFixesCursorNotifyEvent *from,
+			  xXFixesCursorNotifyEvent *to);
+
+int
+ProcXFixesGetCursorImage (ClientPtr client);
+
+int
+SProcXFixesGetCursorImage (ClientPtr client);
+
+/* Cursor names (Version 2) */
+
+int
+ProcXFixesSetCursorName (ClientPtr client);
+
+int
+SProcXFixesSetCursorName (ClientPtr client);
+
+int
+ProcXFixesGetCursorName (ClientPtr client);
+
+int
+SProcXFixesGetCursorName (ClientPtr client);
+
+int
+ProcXFixesGetCursorImageAndName (ClientPtr client);
+
+int
+SProcXFixesGetCursorImageAndName (ClientPtr client);
+
+/* Cursor replacement (Version 2) */
+
+int
+ProcXFixesChangeCursor (ClientPtr client);
+
+int
+SProcXFixesChangeCursor (ClientPtr client);
+
+int
+ProcXFixesChangeCursorByName (ClientPtr client);
+
+int
+SProcXFixesChangeCursorByName (ClientPtr client);
+
+/* Region objects (Version 2* */
+Bool
+XFixesRegionInit (void);
+
+int
+ProcXFixesCreateRegion (ClientPtr client);
+
+int
+SProcXFixesCreateRegion (ClientPtr client);
+
+int
+ProcXFixesCreateRegionFromBitmap (ClientPtr client);
+
+int
+SProcXFixesCreateRegionFromBitmap (ClientPtr client);
+
+int
+ProcXFixesCreateRegionFromWindow (ClientPtr client);
+
+int
+SProcXFixesCreateRegionFromWindow (ClientPtr client);
+
+int
+ProcXFixesCreateRegionFromGC (ClientPtr client);
+
+int
+SProcXFixesCreateRegionFromGC (ClientPtr client);
+
+int
+ProcXFixesCreateRegionFromPicture (ClientPtr client);
+
+int
+SProcXFixesCreateRegionFromPicture (ClientPtr client);
+
+int
+ProcXFixesDestroyRegion (ClientPtr client);
+
+int
+SProcXFixesDestroyRegion (ClientPtr client);
+
+int
+ProcXFixesSetRegion (ClientPtr client);
+
+int
+SProcXFixesSetRegion (ClientPtr client);
+
+int
+ProcXFixesCopyRegion (ClientPtr client);
+
+int
+SProcXFixesCopyRegion (ClientPtr client);
+
+int
+ProcXFixesCombineRegion (ClientPtr client);
+
+int
+SProcXFixesCombineRegion (ClientPtr client);
+
+int
+ProcXFixesInvertRegion (ClientPtr client);
+
+int
+SProcXFixesInvertRegion (ClientPtr client);
+
+int
+ProcXFixesTranslateRegion (ClientPtr client);
+
+int
+SProcXFixesTranslateRegion (ClientPtr client);
+
+int
+ProcXFixesRegionExtents (ClientPtr client);
+
+int
+SProcXFixesRegionExtents (ClientPtr client);
+
+int
+ProcXFixesFetchRegion (ClientPtr client);
+
+int
+SProcXFixesFetchRegion (ClientPtr client);
+
+int
+ProcXFixesSetGCClipRegion (ClientPtr client);
+
+int
+SProcXFixesSetGCClipRegion (ClientPtr client);
+
+int
+ProcXFixesSetWindowShapeRegion (ClientPtr client);
+
+int
+SProcXFixesSetWindowShapeRegion (ClientPtr client);
+
+int
+ProcXFixesSetPictureClipRegion (ClientPtr client);
+
+int
+SProcXFixesSetPictureClipRegion (ClientPtr client);
+
+int
+ProcXFixesExpandRegion (ClientPtr client);
+
+int
+SProcXFixesExpandRegion (ClientPtr client);
+
+int
+PanoramiXFixesSetGCClipRegion (ClientPtr client);
+
+int
+PanoramiXFixesSetWindowShapeRegion (ClientPtr client);
+
+int
+PanoramiXFixesSetPictureClipRegion (ClientPtr client);
+
+/* Cursor Visibility (Version 4) */
+
+int 
+ProcXFixesHideCursor (ClientPtr client);
+
+int 
+SProcXFixesHideCursor (ClientPtr client);
+
+int 
+ProcXFixesShowCursor (ClientPtr client);
+
+int 
+SProcXFixesShowCursor (ClientPtr client);
+
+/* Version 5 */
+
+int
+ProcXFixesCreatePointerBarrier (ClientPtr client);
+
+int
+SProcXFixesCreatePointerBarrier (ClientPtr client);
+
+int
+ProcXFixesDestroyPointerBarrier (ClientPtr client);
+
+int
+SProcXFixesDestroyPointerBarrier (ClientPtr client);
+
+/* Xinerama */
+extern int (*PanoramiXSaveXFixesVector[XFixesNumberRequests])(ClientPtr);
+void PanoramiXFixesInit (void);
+void PanoramiXFixesReset (void);
+
+#endif /* _XFIXESINT_H_ */