xserver git update 15/5/2010

1 files changed, 512 insertions, 512 deletions

diff --git a/xorg-server/dix/cursor.c b/xorg-server/dix/cursor.c
index 5d9c8b080..01d08bd6e 100644
--- a/xorg-server/dix/cursor.c
+++ b/xorg-server/dix/cursor.c
@@ -1,512 +1,512 @@
-/***********************************************************
-
-Copyright 1987, 1998  The Open Group
-
-Permission to use, copy, modify, distribute, and sell this software and its
-documentation for any purpose is hereby granted without fee, provided that
-the above copyright notice appear in all copies and that both that
-copyright notice and this permission notice appear in supporting
-documentation.
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of The Open Group shall not be
-used in advertising or otherwise to promote the sale, use or other dealings
-in this Software without prior written authorization from The Open Group.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
-                        All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its 
-documentation for any purpose and without fee is hereby granted, 
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in 
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.  
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL 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 <X11/X.h>
-#include <X11/Xmd.h>
-#include "servermd.h"
-#include "scrnintstr.h"
-#include "dixstruct.h"
-#include "cursorstr.h"
-#include "dixfontstr.h"
-#include "opaque.h"
-#include "inputstr.h"
-#include "xace.h"
-
-typedef struct _GlyphShare {
-    FontPtr font;
-    unsigned short sourceChar;
-    unsigned short maskChar;
-    CursorBitsPtr bits;
-    struct _GlyphShare *next;
-} GlyphShare, *GlyphSharePtr;
-
-static GlyphSharePtr sharedGlyphs = (GlyphSharePtr)NULL;
-
-#ifdef XFIXES
-static CARD32	cursorSerial;
-#endif
-
-static void
-FreeCursorBits(CursorBitsPtr bits)
-{
-    if (--bits->refcnt > 0)
-	return;
-    xfree(bits->source);
-    xfree(bits->mask);
-#ifdef ARGB_CURSOR
-    xfree(bits->argb);
-#endif
-    dixFreePrivates(bits->devPrivates);
-    bits->devPrivates = NULL;
-    if (bits->refcnt == 0)
-    {
-	GlyphSharePtr *prev, this;
-
-	for (prev = &sharedGlyphs;
-	     (this = *prev) && (this->bits != bits);
-	     prev = &this->next)
-	    ;
-	if (this)
-	{
-	    *prev = this->next;
-	    CloseFont(this->font, (Font)0);
-	    xfree(this);
-	}
-	xfree(bits);
-    }
-}
-
-/**
- * To be called indirectly by DeleteResource; must use exactly two args.
- *
- *  \param value must conform to DeleteType
- */
-int
-FreeCursor(pointer value, XID cid)
-{
-    int		nscr;
-    CursorPtr 	pCurs = (CursorPtr)value;
-
-    ScreenPtr	pscr;
-    DeviceIntPtr pDev = NULL; /* unused anyway */
-
-    if ( --pCurs->refcnt != 0)
-	return(Success);
-
-    for (nscr = 0; nscr < screenInfo.numScreens; nscr++)
-    {
-	pscr = screenInfo.screens[nscr];
-        (void)( *pscr->UnrealizeCursor)(pDev, pscr, pCurs);
-    }
-    dixFreePrivates(pCurs->devPrivates);
-    FreeCursorBits(pCurs->bits);
-    xfree( pCurs);
-    return(Success);
-}
-
-
-/*
- * We check for empty cursors so that we won't have to display them
- */
-static void
-CheckForEmptyMask(CursorBitsPtr bits)
-{
-    unsigned char *msk = bits->mask;
-    int n = BitmapBytePad(bits->width) * bits->height;
-
-    bits->emptyMask = FALSE;
-    while(n--) 
-	if(*(msk++) != 0) return;
-#ifdef ARGB_CURSOR
-    if (bits->argb)
-    {
-	CARD32 *argb = bits->argb;
-	int n = bits->width * bits->height;
-	while (n--)
-	    if (*argb++ & 0xff000000) return;
-    }
-#endif
-    bits->emptyMask = TRUE;
-}
-
-/**
- * realize the cursor for every screen. Do not change the refcnt, this will be
- * changed when ChangeToCursor actually changes the sprite.
- *
- * @return Success if all cursors realize on all screens, BadAlloc if realize
- * failed for a device on a given screen.
- */
-static int
-RealizeCursorAllScreens(CursorPtr pCurs)
-{
-    DeviceIntPtr pDev;
-    ScreenPtr   pscr;
-    int nscr;
-
-    for (nscr = 0; nscr < screenInfo.numScreens; nscr++)
-    {
-        pscr = screenInfo.screens[nscr];
-        for (pDev = inputInfo.devices; pDev; pDev = pDev->next)
-        {
-            if (DevHasCursor(pDev))
-            {
-                if (!( *pscr->RealizeCursor)(pDev, pscr, pCurs))
-                {
-                    /* Realize failed for device pDev on screen pscr.
-                     * We have to assume that for all devices before, realize
-                     * worked. We need to rollback all devices so far on the
-                     * current screen and then all devices on previous
-                     * screens.
-                     */
-                    DeviceIntPtr pDevIt = inputInfo.devices; /*dev iterator*/
-                    while(pDevIt && pDevIt != pDev)
-                    {
-                        if (DevHasCursor(pDevIt))
-                            ( *pscr->UnrealizeCursor)(pDevIt, pscr, pCurs);
-                        pDevIt = pDevIt->next;
-                    }
-                    while (--nscr >= 0)
-                    {
-                        pscr = screenInfo.screens[nscr];
-                        /* now unrealize all devices on previous screens */
-                        pDevIt = inputInfo.devices;
-                        while (pDevIt)
-                        {
-                            if (DevHasCursor(pDevIt))
-                                ( *pscr->UnrealizeCursor)(pDevIt, pscr, pCurs);
-                            pDevIt = pDevIt->next;
-                        }
-                        ( *pscr->UnrealizeCursor)(pDev, pscr, pCurs);
-                    }
-                    return BadAlloc;
-                }
-            }
-        }
-    }
-
-    return Success;
-}
-
-/**
- * does nothing about the resource table, just creates the data structure.
- * does not copy the src and mask bits
- *
- *  \param psrcbits  server-defined padding
- *  \param pmaskbits server-defined padding
- *  \param argb      no padding
- */
-int
-AllocARGBCursor(unsigned char *psrcbits, unsigned char *pmaskbits,
-		CARD32 *argb, CursorMetricPtr cm,
-		unsigned foreRed, unsigned foreGreen, unsigned foreBlue, 
-		unsigned backRed, unsigned backGreen, unsigned backBlue,
-		CursorPtr *ppCurs, ClientPtr client, XID cid)
-{
-    CursorBitsPtr  bits;
-    CursorPtr 	pCurs;
-    int rc;
-
-    *ppCurs = NULL;
-    pCurs = (CursorPtr)xcalloc(sizeof(CursorRec) + sizeof(CursorBits), 1);
-    if (!pCurs)
-    {
-	xfree(psrcbits);
-	xfree(pmaskbits);
-	return BadAlloc;
-    }
-    bits = (CursorBitsPtr)((char *)pCurs + sizeof(CursorRec));
-    bits->source = psrcbits;
-    bits->mask = pmaskbits;
-#ifdef ARGB_CURSOR
-    bits->argb = argb;
-#endif
-    bits->width = cm->width;
-    bits->height = cm->height;
-    bits->xhot = cm->xhot;
-    bits->yhot = cm->yhot;
-    pCurs->refcnt = 1;		
-    bits->devPrivates = NULL;
-    bits->refcnt = -1;
-    CheckForEmptyMask(bits);
-    pCurs->bits = bits;
-#ifdef XFIXES
-    pCurs->serialNumber = ++cursorSerial;
-    pCurs->name = None;
-#endif
-
-    pCurs->foreRed = foreRed;
-    pCurs->foreGreen = foreGreen;
-    pCurs->foreBlue = foreBlue;
-
-    pCurs->backRed = backRed;
-    pCurs->backGreen = backGreen;
-    pCurs->backBlue = backBlue;
-
-    pCurs->id = cid;
-    pCurs->devPrivates = NULL;
-
-    /* security creation/labeling check */
-    rc = XaceHook(XACE_RESOURCE_ACCESS, client, cid, RT_CURSOR,
-		  pCurs, RT_NONE, NULL, DixCreateAccess);
-    if (rc != Success)
-        goto error;
-
-    rc = RealizeCursorAllScreens(pCurs);
-    if (rc != Success)
-        goto error;
-
-    *ppCurs = pCurs;
-    return Success;
-
-error:
-    dixFreePrivates(pCurs->devPrivates);
-    FreeCursorBits(bits);
-    xfree(pCurs);
-
-    return rc;
-}
-
-int
-AllocGlyphCursor(Font source, unsigned sourceChar, Font mask, unsigned maskChar,
-                unsigned foreRed, unsigned foreGreen, unsigned foreBlue, 
-                unsigned backRed, unsigned backGreen, unsigned backBlue,
-		CursorPtr *ppCurs, ClientPtr client, XID cid)
-{
-    FontPtr  sourcefont, maskfont;
-    unsigned char   *srcbits;
-    unsigned char   *mskbits;
-    CursorMetricRec cm;
-    int rc;
-    CursorBitsPtr  bits;
-    CursorPtr 	pCurs;
-    GlyphSharePtr pShare;
-
-    rc = dixLookupResourceByType((pointer *)&sourcefont, source, RT_FONT, client,
-				 DixUseAccess);
-    if (rc != Success)
-    {
-	client->errorValue = source;
-	return (rc == BadValue) ? BadFont : rc;
-    }
-    rc = dixLookupResourceByType((pointer *)&maskfont, mask, RT_FONT, client,
-				 DixUseAccess);
-    if (rc != Success && mask != None)
-    {
-	client->errorValue = mask;
-	return (rc == BadValue) ? BadFont : rc;
-    }
-    if (sourcefont != maskfont)
-	pShare = (GlyphSharePtr)NULL;
-    else
-    {
-	for (pShare = sharedGlyphs;
-	     pShare &&
-	     ((pShare->font != sourcefont) ||
-	      (pShare->sourceChar != sourceChar) ||
-	      (pShare->maskChar != maskChar));
-	     pShare = pShare->next)
-	    ;
-    }
-    if (pShare)
-    {
-	pCurs = (CursorPtr)xcalloc(sizeof(CursorRec), 1);
-	if (!pCurs)
-	    return BadAlloc;
-	bits = pShare->bits;
-	bits->refcnt++;
-    }
-    else
-    {
-	if (!CursorMetricsFromGlyph(sourcefont, sourceChar, &cm))
-	{
-	    client->errorValue = sourceChar;
-	    return BadValue;
-	}
-	if (!maskfont)
-	{
-	    long n;
-	    unsigned char *mskptr;
-
-	    n = BitmapBytePad(cm.width)*(long)cm.height;
-	    mskptr = mskbits = xalloc(n);
-	    if (!mskptr)
-		return BadAlloc;
-	    while (--n >= 0)
-		*mskptr++ = ~0;
-	}
-	else
-	{
-	    if (!CursorMetricsFromGlyph(maskfont, maskChar, &cm))
-	    {
-		client->errorValue = maskChar;
-		return BadValue;
-	    }
-	    if ((rc = ServerBitsFromGlyph(maskfont, maskChar, &cm, &mskbits)))
-		return rc;
-	}
-	if ((rc = ServerBitsFromGlyph(sourcefont, sourceChar, &cm, &srcbits)))
-	{
-	    xfree(mskbits);
-	    return rc;
-	}
-	if (sourcefont != maskfont)
-	{
-	    pCurs = 
-                (CursorPtr)xcalloc(sizeof(CursorRec) + sizeof(CursorBits), 1);
-	    if (pCurs)
-		bits = (CursorBitsPtr)((char *)pCurs + sizeof(CursorRec));
-	    else
-		bits = (CursorBitsPtr)NULL;
-	}
-	else
-	{
-	    pCurs = (CursorPtr)xcalloc(sizeof(CursorRec), 1);
-	    if (pCurs)
-		bits = (CursorBitsPtr)xcalloc(sizeof(CursorBits), 1);
-	    else
-		bits = (CursorBitsPtr)NULL;
-	}
-	if (!bits)
-	{
-	    xfree(pCurs);
-	    xfree(mskbits);
-	    xfree(srcbits);
-	    return BadAlloc;
-	}
-	bits->source = srcbits;
-	bits->mask = mskbits;
-#ifdef ARGB_CURSOR
-	bits->argb = 0;
-#endif
-	bits->width = cm.width;
-	bits->height = cm.height;
-	bits->xhot = cm.xhot;
-	bits->yhot = cm.yhot;
-	bits->devPrivates = NULL;
-	if (sourcefont != maskfont)
-	    bits->refcnt = -1;
-	else
-	{
-	    bits->refcnt = 1;
-	    pShare = xalloc(sizeof(GlyphShare));
-	    if (!pShare)
-	    {
-		FreeCursorBits(bits);
-		return BadAlloc;
-	    }
-	    pShare->font = sourcefont;
-	    sourcefont->refcnt++;
-	    pShare->sourceChar = sourceChar;
-	    pShare->maskChar = maskChar;
-	    pShare->bits = bits;
-	    pShare->next = sharedGlyphs;
-	    sharedGlyphs = pShare;
-	}
-    }
-
-    CheckForEmptyMask(bits);
-    pCurs->bits = bits;
-    pCurs->refcnt = 1;
-#ifdef XFIXES
-    pCurs->serialNumber = ++cursorSerial;
-    pCurs->name = None;
-#endif
-
-    pCurs->foreRed = foreRed;
-    pCurs->foreGreen = foreGreen;
-    pCurs->foreBlue = foreBlue;
-
-    pCurs->backRed = backRed;
-    pCurs->backGreen = backGreen;
-    pCurs->backBlue = backBlue;
-
-    pCurs->id = cid;
-    pCurs->devPrivates = NULL;
-
-    /* security creation/labeling check */
-    rc = XaceHook(XACE_RESOURCE_ACCESS, client, cid, RT_CURSOR,
-		  pCurs, RT_NONE, NULL, DixCreateAccess);
-    if (rc != Success)
-        goto error;
-
-    rc = RealizeCursorAllScreens(pCurs);
-    if (rc != Success)
-        goto error;
-
-    *ppCurs = pCurs;
-    return Success;
-
-error:
-    dixFreePrivates(pCurs->devPrivates);
-    FreeCursorBits(bits);
-    xfree(pCurs);
-
-    return rc;
-}
-
-/** CreateRootCursor
- *
- * look up the name of a font
- * open the font
- * add the font to the resource table
- * make a cursor from the glyphs
- * add the cursor to the resource table
- *************************************************************/
-
-CursorPtr
-CreateRootCursor(char *unused1, unsigned int unused2)
-{
-    CursorPtr 	curs;
-    FontPtr 	cursorfont;
-    int	err;
-    XID		fontID;
-
-    fontID = FakeClientID(0);
-    err = OpenFont(serverClient, fontID, FontLoadAll | FontOpenSync,
-	(unsigned)strlen(defaultCursorFont), defaultCursorFont);
-    if (err != Success)
-	return NullCursor;
-
-    err = dixLookupResourceByType((pointer *)&cursorfont, fontID, RT_FONT,
-				  serverClient, DixReadAccess);
-    if (err != Success)
-	return NullCursor;
-    if (AllocGlyphCursor(fontID, 0, fontID, 1, 0, 0, 0, ~0, ~0, ~0,
-			 &curs, serverClient, (XID)0) != Success)
-	return NullCursor;
-
-    if (!AddResource(FakeClientID(0), RT_CURSOR, (pointer)curs))
-	return NullCursor;
-
-    return curs;
-}
+/***********************************************************

+

+Copyright 1987, 1998  The Open Group

+

+Permission to use, copy, modify, distribute, and sell this software and its

+documentation for any purpose is hereby granted without fee, provided that

+the above copyright notice appear in all copies and that both that

+copyright notice and this permission notice appear in supporting

+documentation.

+

+The above copyright notice and this permission notice shall be included in

+all copies or substantial portions of the Software.

+

+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE

+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+

+Except as contained in this notice, the name of The Open Group shall not be

+used in advertising or otherwise to promote the sale, use or other dealings

+in this Software without prior written authorization from The Open Group.

+

+

+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.

+

+                        All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and its 

+documentation for any purpose and without fee is hereby granted, 

+provided that the above copyright notice appear in all copies and that

+both that copyright notice and this permission notice appear in 

+supporting documentation, and that the name of Digital not be

+used in advertising or publicity pertaining to distribution of the

+software without specific, written prior permission.  

+

+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING

+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL

+DIGITAL 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 <X11/X.h>

+#include <X11/Xmd.h>

+#include "servermd.h"

+#include "scrnintstr.h"

+#include "dixstruct.h"

+#include "cursorstr.h"

+#include "dixfontstr.h"

+#include "opaque.h"

+#include "inputstr.h"

+#include "xace.h"

+

+typedef struct _GlyphShare {

+    FontPtr font;

+    unsigned short sourceChar;

+    unsigned short maskChar;

+    CursorBitsPtr bits;

+    struct _GlyphShare *next;

+} GlyphShare, *GlyphSharePtr;

+

+static GlyphSharePtr sharedGlyphs = (GlyphSharePtr)NULL;

+

+#ifdef XFIXES

+static CARD32	cursorSerial;

+#endif

+

+static void

+FreeCursorBits(CursorBitsPtr bits)

+{

+    if (--bits->refcnt > 0)

+	return;

+    free(bits->source);

+    free(bits->mask);

+#ifdef ARGB_CURSOR

+    free(bits->argb);

+#endif

+    dixFreePrivates(bits->devPrivates);

+    bits->devPrivates = NULL;

+    if (bits->refcnt == 0)

+    {

+	GlyphSharePtr *prev, this;

+

+	for (prev = &sharedGlyphs;

+	     (this = *prev) && (this->bits != bits);

+	     prev = &this->next)

+	    ;

+	if (this)

+	{

+	    *prev = this->next;

+	    CloseFont(this->font, (Font)0);

+	    free(this);

+	}

+	free(bits);

+    }

+}

+

+/**

+ * To be called indirectly by DeleteResource; must use exactly two args.

+ *

+ *  \param value must conform to DeleteType

+ */

+int

+FreeCursor(pointer value, XID cid)

+{

+    int		nscr;

+    CursorPtr 	pCurs = (CursorPtr)value;

+

+    ScreenPtr	pscr;

+    DeviceIntPtr pDev = NULL; /* unused anyway */

+

+    if ( --pCurs->refcnt != 0)

+	return(Success);

+

+    for (nscr = 0; nscr < screenInfo.numScreens; nscr++)

+    {

+	pscr = screenInfo.screens[nscr];

+        (void)( *pscr->UnrealizeCursor)(pDev, pscr, pCurs);

+    }

+    dixFreePrivates(pCurs->devPrivates);

+    FreeCursorBits(pCurs->bits);

+    free( pCurs);

+    return(Success);

+}

+

+

+/*

+ * We check for empty cursors so that we won't have to display them

+ */

+static void

+CheckForEmptyMask(CursorBitsPtr bits)

+{

+    unsigned char *msk = bits->mask;

+    int n = BitmapBytePad(bits->width) * bits->height;

+

+    bits->emptyMask = FALSE;

+    while(n--) 

+	if(*(msk++) != 0) return;

+#ifdef ARGB_CURSOR

+    if (bits->argb)

+    {

+	CARD32 *argb = bits->argb;

+	int n = bits->width * bits->height;

+	while (n--)

+	    if (*argb++ & 0xff000000) return;

+    }

+#endif

+    bits->emptyMask = TRUE;

+}

+

+/**

+ * realize the cursor for every screen. Do not change the refcnt, this will be

+ * changed when ChangeToCursor actually changes the sprite.

+ *

+ * @return Success if all cursors realize on all screens, BadAlloc if realize

+ * failed for a device on a given screen.

+ */

+static int

+RealizeCursorAllScreens(CursorPtr pCurs)

+{

+    DeviceIntPtr pDev;

+    ScreenPtr   pscr;

+    int nscr;

+

+    for (nscr = 0; nscr < screenInfo.numScreens; nscr++)

+    {

+        pscr = screenInfo.screens[nscr];

+        for (pDev = inputInfo.devices; pDev; pDev = pDev->next)

+        {

+            if (DevHasCursor(pDev))

+            {

+                if (!( *pscr->RealizeCursor)(pDev, pscr, pCurs))

+                {

+                    /* Realize failed for device pDev on screen pscr.

+                     * We have to assume that for all devices before, realize

+                     * worked. We need to rollback all devices so far on the

+                     * current screen and then all devices on previous

+                     * screens.

+                     */

+                    DeviceIntPtr pDevIt = inputInfo.devices; /*dev iterator*/

+                    while(pDevIt && pDevIt != pDev)

+                    {

+                        if (DevHasCursor(pDevIt))

+                            ( *pscr->UnrealizeCursor)(pDevIt, pscr, pCurs);

+                        pDevIt = pDevIt->next;

+                    }

+                    while (--nscr >= 0)

+                    {

+                        pscr = screenInfo.screens[nscr];

+                        /* now unrealize all devices on previous screens */

+                        pDevIt = inputInfo.devices;

+                        while (pDevIt)

+                        {

+                            if (DevHasCursor(pDevIt))

+                                ( *pscr->UnrealizeCursor)(pDevIt, pscr, pCurs);

+                            pDevIt = pDevIt->next;

+                        }

+                        ( *pscr->UnrealizeCursor)(pDev, pscr, pCurs);

+                    }

+                    return BadAlloc;

+                }

+            }

+        }

+    }

+

+    return Success;

+}

+

+/**

+ * does nothing about the resource table, just creates the data structure.

+ * does not copy the src and mask bits

+ *

+ *  \param psrcbits  server-defined padding

+ *  \param pmaskbits server-defined padding

+ *  \param argb      no padding

+ */

+int

+AllocARGBCursor(unsigned char *psrcbits, unsigned char *pmaskbits,

+		CARD32 *argb, CursorMetricPtr cm,

+		unsigned foreRed, unsigned foreGreen, unsigned foreBlue, 

+		unsigned backRed, unsigned backGreen, unsigned backBlue,

+		CursorPtr *ppCurs, ClientPtr client, XID cid)

+{

+    CursorBitsPtr  bits;

+    CursorPtr 	pCurs;

+    int rc;

+

+    *ppCurs = NULL;

+    pCurs = (CursorPtr)calloc(sizeof(CursorRec) + sizeof(CursorBits), 1);

+    if (!pCurs)

+    {

+	free(psrcbits);

+	free(pmaskbits);

+	return BadAlloc;

+    }

+    bits = (CursorBitsPtr)((char *)pCurs + sizeof(CursorRec));

+    bits->source = psrcbits;

+    bits->mask = pmaskbits;

+#ifdef ARGB_CURSOR

+    bits->argb = argb;

+#endif

+    bits->width = cm->width;

+    bits->height = cm->height;

+    bits->xhot = cm->xhot;

+    bits->yhot = cm->yhot;

+    pCurs->refcnt = 1;		

+    bits->devPrivates = NULL;

+    bits->refcnt = -1;

+    CheckForEmptyMask(bits);

+    pCurs->bits = bits;

+#ifdef XFIXES

+    pCurs->serialNumber = ++cursorSerial;

+    pCurs->name = None;

+#endif

+

+    pCurs->foreRed = foreRed;

+    pCurs->foreGreen = foreGreen;

+    pCurs->foreBlue = foreBlue;

+

+    pCurs->backRed = backRed;

+    pCurs->backGreen = backGreen;

+    pCurs->backBlue = backBlue;

+

+    pCurs->id = cid;

+    pCurs->devPrivates = NULL;

+

+    /* security creation/labeling check */

+    rc = XaceHook(XACE_RESOURCE_ACCESS, client, cid, RT_CURSOR,

+		  pCurs, RT_NONE, NULL, DixCreateAccess);

+    if (rc != Success)

+        goto error;

+

+    rc = RealizeCursorAllScreens(pCurs);

+    if (rc != Success)

+        goto error;

+

+    *ppCurs = pCurs;

+    return Success;

+

+error:

+    dixFreePrivates(pCurs->devPrivates);

+    FreeCursorBits(bits);

+    free(pCurs);

+

+    return rc;

+}

+

+int

+AllocGlyphCursor(Font source, unsigned sourceChar, Font mask, unsigned maskChar,

+                unsigned foreRed, unsigned foreGreen, unsigned foreBlue, 

+                unsigned backRed, unsigned backGreen, unsigned backBlue,

+		CursorPtr *ppCurs, ClientPtr client, XID cid)

+{

+    FontPtr  sourcefont, maskfont;

+    unsigned char   *srcbits;

+    unsigned char   *mskbits;

+    CursorMetricRec cm;

+    int rc;

+    CursorBitsPtr  bits;

+    CursorPtr 	pCurs;

+    GlyphSharePtr pShare;

+

+    rc = dixLookupResourceByType((pointer *)&sourcefont, source, RT_FONT, client,

+				 DixUseAccess);

+    if (rc != Success)

+    {

+	client->errorValue = source;

+	return (rc == BadValue) ? BadFont : rc;

+    }

+    rc = dixLookupResourceByType((pointer *)&maskfont, mask, RT_FONT, client,

+				 DixUseAccess);

+    if (rc != Success && mask != None)

+    {

+	client->errorValue = mask;

+	return (rc == BadValue) ? BadFont : rc;

+    }

+    if (sourcefont != maskfont)

+	pShare = (GlyphSharePtr)NULL;

+    else

+    {

+	for (pShare = sharedGlyphs;

+	     pShare &&

+	     ((pShare->font != sourcefont) ||

+	      (pShare->sourceChar != sourceChar) ||

+	      (pShare->maskChar != maskChar));

+	     pShare = pShare->next)

+	    ;

+    }

+    if (pShare)

+    {

+	pCurs = (CursorPtr)calloc(sizeof(CursorRec), 1);

+	if (!pCurs)

+	    return BadAlloc;

+	bits = pShare->bits;

+	bits->refcnt++;

+    }

+    else

+    {

+	if (!CursorMetricsFromGlyph(sourcefont, sourceChar, &cm))

+	{

+	    client->errorValue = sourceChar;

+	    return BadValue;

+	}

+	if (!maskfont)

+	{

+	    long n;

+	    unsigned char *mskptr;

+

+	    n = BitmapBytePad(cm.width)*(long)cm.height;

+	    mskptr = mskbits = malloc(n);

+	    if (!mskptr)

+		return BadAlloc;

+	    while (--n >= 0)

+		*mskptr++ = ~0;

+	}

+	else

+	{

+	    if (!CursorMetricsFromGlyph(maskfont, maskChar, &cm))

+	    {

+		client->errorValue = maskChar;

+		return BadValue;

+	    }

+	    if ((rc = ServerBitsFromGlyph(maskfont, maskChar, &cm, &mskbits)))

+		return rc;

+	}

+	if ((rc = ServerBitsFromGlyph(sourcefont, sourceChar, &cm, &srcbits)))

+	{

+	    free(mskbits);

+	    return rc;

+	}

+	if (sourcefont != maskfont)

+	{

+	    pCurs = 

+                (CursorPtr)calloc(sizeof(CursorRec) + sizeof(CursorBits), 1);

+	    if (pCurs)

+		bits = (CursorBitsPtr)((char *)pCurs + sizeof(CursorRec));

+	    else

+		bits = (CursorBitsPtr)NULL;

+	}

+	else

+	{

+	    pCurs = (CursorPtr)calloc(sizeof(CursorRec), 1);

+	    if (pCurs)

+		bits = (CursorBitsPtr)calloc(sizeof(CursorBits), 1);

+	    else

+		bits = (CursorBitsPtr)NULL;

+	}

+	if (!bits)

+	{

+	    free(pCurs);

+	    free(mskbits);

+	    free(srcbits);

+	    return BadAlloc;

+	}

+	bits->source = srcbits;

+	bits->mask = mskbits;

+#ifdef ARGB_CURSOR

+	bits->argb = 0;

+#endif

+	bits->width = cm.width;

+	bits->height = cm.height;

+	bits->xhot = cm.xhot;

+	bits->yhot = cm.yhot;

+	bits->devPrivates = NULL;

+	if (sourcefont != maskfont)

+	    bits->refcnt = -1;

+	else

+	{

+	    bits->refcnt = 1;

+	    pShare = malloc(sizeof(GlyphShare));

+	    if (!pShare)

+	    {

+		FreeCursorBits(bits);

+		return BadAlloc;

+	    }

+	    pShare->font = sourcefont;

+	    sourcefont->refcnt++;

+	    pShare->sourceChar = sourceChar;

+	    pShare->maskChar = maskChar;

+	    pShare->bits = bits;

+	    pShare->next = sharedGlyphs;

+	    sharedGlyphs = pShare;

+	}

+    }

+

+    CheckForEmptyMask(bits);

+    pCurs->bits = bits;

+    pCurs->refcnt = 1;

+#ifdef XFIXES

+    pCurs->serialNumber = ++cursorSerial;

+    pCurs->name = None;

+#endif

+

+    pCurs->foreRed = foreRed;

+    pCurs->foreGreen = foreGreen;

+    pCurs->foreBlue = foreBlue;

+

+    pCurs->backRed = backRed;

+    pCurs->backGreen = backGreen;

+    pCurs->backBlue = backBlue;

+

+    pCurs->id = cid;

+    pCurs->devPrivates = NULL;

+

+    /* security creation/labeling check */

+    rc = XaceHook(XACE_RESOURCE_ACCESS, client, cid, RT_CURSOR,

+		  pCurs, RT_NONE, NULL, DixCreateAccess);

+    if (rc != Success)

+        goto error;

+

+    rc = RealizeCursorAllScreens(pCurs);

+    if (rc != Success)

+        goto error;

+

+    *ppCurs = pCurs;

+    return Success;

+

+error:

+    dixFreePrivates(pCurs->devPrivates);

+    FreeCursorBits(bits);

+    free(pCurs);

+

+    return rc;

+}

+

+/** CreateRootCursor

+ *

+ * look up the name of a font

+ * open the font

+ * add the font to the resource table

+ * make a cursor from the glyphs

+ * add the cursor to the resource table

+ *************************************************************/

+

+CursorPtr

+CreateRootCursor(char *unused1, unsigned int unused2)

+{

+    CursorPtr 	curs;

+    FontPtr 	cursorfont;

+    int	err;

+    XID		fontID;

+

+    fontID = FakeClientID(0);

+    err = OpenFont(serverClient, fontID, FontLoadAll | FontOpenSync,

+	(unsigned)strlen(defaultCursorFont), defaultCursorFont);

+    if (err != Success)

+	return NullCursor;

+

+    err = dixLookupResourceByType((pointer *)&cursorfont, fontID, RT_FONT,

+				  serverClient, DixReadAccess);

+    if (err != Success)

+	return NullCursor;

+    if (AllocGlyphCursor(fontID, 0, fontID, 1, 0, 0, 0, ~0, ~0, ~0,

+			 &curs, serverClient, (XID)0) != Success)

+	return NullCursor;

+

+    if (!AddResource(FakeClientID(0), RT_CURSOR, (pointer)curs))

+	return NullCursor;

+

+    return curs;

+}