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diff --git a/xfixes/cursor.c b/xfixes/cursor.c
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+++ b/xfixes/cursor.c
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+/*
+ * 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
+
+#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;
+}
+
contact: Jan Huwald // Impressum