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IABSD.fr/xenocara/xserver/dix/swaprep.c

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  • Author : matthieu
    Date : 2007-11-24 17:55:21
    Hash : b14d6de7
    Message : xserver 1.4

  • xserver/dix/swaprep.c
  • /************************************************************
    
    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>
    #define NEED_REPLIES
    #define NEED_EVENTS
    #include <X11/Xproto.h>
    #include "misc.h"
    #include "dixstruct.h"
    #include <X11/fonts/fontstruct.h>
    #include "scrnintstr.h"
    #include "swaprep.h"
    #include "globals.h"
    
    static void SwapFontInfo(xQueryFontReply *pr);
    
    static void SwapCharInfo(xCharInfo *pInfo);
    
    static void SwapFont(xQueryFontReply *pr, Bool hasGlyphs);
    
    /**
     * Thanks to Jack Palevich for testing and subsequently rewriting all this
     *
     *  \param size size in bytes
     */
    _X_EXPORT void
    Swap32Write(ClientPtr pClient, int size, CARD32 *pbuf)
    {
        int i;
        char n;
    
        size >>= 2;
        for(i = 0; i < size; i++)
        /* brackets are mandatory here, because "swapl" macro expands
           to several statements */
        {   
    	swapl(&pbuf[i], n);
        }
        (void)WriteToClient(pClient, size << 2, (char *) pbuf);
    }
    
    /**
     *
     * \param size size in bytes
     */
    _X_EXPORT void
    CopySwap32Write(ClientPtr pClient, int size, CARD32 *pbuf)
    {
        int bufsize = size;
        CARD32 *pbufT;
        CARD32 *from, *to, *fromLast, *toLast;
        CARD32 tmpbuf[1];
        
        /* Allocate as big a buffer as we can... */
        while (!(pbufT = (CARD32 *) ALLOCATE_LOCAL(bufsize)))
        {
            bufsize >>= 1;
    	if (bufsize == 4)
    	{
    	    pbufT = tmpbuf;
    	    break;
    	}
        }
        
        /* convert lengths from # of bytes to # of longs */
        size >>= 2;
        bufsize >>= 2;
    
        from = pbuf;
        fromLast = from + size;
        while (from < fromLast) {
    	int nbytes;
            to = pbufT;
            toLast = to + min (bufsize, fromLast - from);
            nbytes = (toLast - to) << 2;
            while (to < toLast) {
                /* can't write "cpswapl(*from++, *to++)" because cpswapl is a macro
    	       that evaulates its args more than once */
    	    cpswapl(*from, *to);
                from++;
                to++;
    	    }
    	(void)WriteToClient (pClient, nbytes, (char *) pbufT);
    	}
    
        if (pbufT != tmpbuf)
    	DEALLOCATE_LOCAL ((char *) pbufT);
    }
    
    /**
     *
     * \param size size in bytes
     */
    void
    CopySwap16Write(ClientPtr pClient, int size, short *pbuf)
    {
        int bufsize = size;
        short *pbufT;
        short *from, *to, *fromLast, *toLast;
        short tmpbuf[2];
        
        /* Allocate as big a buffer as we can... */
        while (!(pbufT = (short *) ALLOCATE_LOCAL(bufsize)))
        {
            bufsize >>= 1;
    	if (bufsize == 4)
    	{
    	    pbufT = tmpbuf;
    	    break;
    	}
        }
        
        /* convert lengths from # of bytes to # of shorts */
        size >>= 1;
        bufsize >>= 1;
    
        from = pbuf;
        fromLast = from + size;
        while (from < fromLast) {
    	int nbytes;
            to = pbufT;
            toLast = to + min (bufsize, fromLast - from);
            nbytes = (toLast - to) << 1;
            while (to < toLast) {
                /* can't write "cpswaps(*from++, *to++)" because cpswaps is a macro
    	       that evaulates its args more than once */
    	    cpswaps(*from, *to);
                from++;
                to++;
    	    }
    	(void)WriteToClient (pClient, nbytes, (char *) pbufT);
    	}
    
        if (pbufT != tmpbuf)
    	DEALLOCATE_LOCAL ((char *) pbufT);
    }
    
    
    /* Extra-small reply */
    void
    SGenericReply(ClientPtr pClient, int size, xGenericReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    /* Extra-large reply */
    void
    SGetWindowAttributesReply(ClientPtr pClient, int size,
                              xGetWindowAttributesReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->length, n);
        swapl(&pRep->visualID, n);
        swaps(&pRep->class, n);
        swapl(&pRep->backingBitPlanes, n);
        swapl(&pRep->backingPixel, n);
        swapl(&pRep->colormap, n);
        swapl(&pRep->allEventMasks, n);
        swapl(&pRep->yourEventMask, n);
        swaps(&pRep->doNotPropagateMask, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SGetGeometryReply(ClientPtr pClient, int size, xGetGeometryReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->root, n);
        swaps(&pRep->x, n);
        swaps(&pRep->y, n);
        swaps(&pRep->width, n);
        swaps(&pRep->height, n);
        swaps(&pRep->borderWidth, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SQueryTreeReply(ClientPtr pClient, int size, xQueryTreeReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->length, n);
        swapl(&pRep->root, n);
        swapl(&pRep->parent, n);
        swaps(&pRep->nChildren, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SInternAtomReply(ClientPtr pClient, int size, xInternAtomReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->atom, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SGetAtomNameReply(ClientPtr pClient, int size, xGetAtomNameReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->length, n);
        swaps(&pRep->nameLength, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    
    void
    SGetPropertyReply(ClientPtr pClient, int size, xGetPropertyReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->length, n);
        swapl(&pRep->propertyType, n);
        swapl(&pRep->bytesAfter, n);
        swapl(&pRep->nItems, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SListPropertiesReply(ClientPtr pClient, int size, xListPropertiesReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->length, n);
        swaps(&pRep->nProperties, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SGetSelectionOwnerReply(ClientPtr pClient, int size,
                            xGetSelectionOwnerReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->owner, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    
    void
    SQueryPointerReply(ClientPtr pClient, int size, xQueryPointerReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->root, n);
        swapl(&pRep->child, n);
        swaps(&pRep->rootX, n);
        swaps(&pRep->rootY, n);
        swaps(&pRep->winX, n);
        swaps(&pRep->winY, n);
        swaps(&pRep->mask, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    static void
    SwapTimecoord(xTimecoord* pCoord)
    {
        char n;
    
        swapl(&pCoord->time, n);
        swaps(&pCoord->x, n);
        swaps(&pCoord->y, n);
    }
    
    void
    SwapTimeCoordWrite(ClientPtr pClient, int size, xTimecoord *pRep)
    {
        int	i, n;
        xTimecoord			*pRepT;
    
        n = size / sizeof(xTimecoord);
        pRepT = pRep;
        for(i = 0; i < n; i++)
        {
    	SwapTimecoord(pRepT);
    	pRepT++;
        }
        (void)WriteToClient(pClient, size, (char *) pRep);
    
    }
    void
    SGetMotionEventsReply(ClientPtr pClient, int size, xGetMotionEventsReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->length, n);
        swapl(&pRep->nEvents, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    STranslateCoordsReply(ClientPtr pClient, int size, xTranslateCoordsReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->child, n);
        swaps(&pRep->dstX, n);
        swaps(&pRep->dstY, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SGetInputFocusReply(ClientPtr pClient, int size, xGetInputFocusReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->focus, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    /* extra long reply */
    void
    SQueryKeymapReply(ClientPtr pClient, int size, xQueryKeymapReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->length, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    static void
    SwapCharInfo(xCharInfo *pInfo)
    {
        char n;
    
        swaps(&pInfo->leftSideBearing, n);
        swaps(&pInfo->rightSideBearing, n);
        swaps(&pInfo->characterWidth, n);
        swaps(&pInfo->ascent, n);
        swaps(&pInfo->descent, n);
        swaps(&pInfo->attributes, n);
    }
    
    static void
    SwapFontInfo(xQueryFontReply *pr)
    {
        char n;
    
        swaps(&pr->minCharOrByte2, n);
        swaps(&pr->maxCharOrByte2, n);
        swaps(&pr->defaultChar, n);
        swaps(&pr->nFontProps, n);
        swaps(&pr->fontAscent, n);
        swaps(&pr->fontDescent, n);
        SwapCharInfo( &pr->minBounds);
        SwapCharInfo( &pr->maxBounds);
        swapl(&pr->nCharInfos, n);
    }
    
    static void
    SwapFont(xQueryFontReply *pr, Bool hasGlyphs)
    {
        unsigned	i;
        xCharInfo *	pxci;
        unsigned	nchars, nprops;
        char	*pby;
        char n;
    
        swaps(&pr->sequenceNumber, n);
        swapl(&pr->length, n);
        nchars = pr->nCharInfos;
        nprops = pr->nFontProps;
        SwapFontInfo(pr);
        pby = (char *) &pr[1];
        /* Font properties are an atom and either an int32 or a CARD32, so
         * they are always 2 4 byte values */
        for(i = 0; i < nprops; i++)
        {
    	swapl(pby, n);
    	pby += 4;
    	swapl(pby, n);
    	pby += 4;
        }
        if (hasGlyphs)
        {
    	pxci = (xCharInfo *)pby;
    	for(i = 0; i< nchars; i++, pxci++)
    	    SwapCharInfo(pxci);
        }
    }
    
    void
    SQueryFontReply(ClientPtr pClient, int size, xQueryFontReply *pRep)
    {
        SwapFont(pRep, TRUE);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SQueryTextExtentsReply(ClientPtr pClient, int size, xQueryTextExtentsReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swaps(&pRep->fontAscent, n);
        swaps(&pRep->fontDescent, n);
        swaps(&pRep->overallAscent, n);
        swaps(&pRep->overallDescent, n);
        swapl(&pRep->overallWidth, n);
        swapl(&pRep->overallLeft, n);
        swapl(&pRep->overallRight, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SListFontsReply(ClientPtr pClient, int size, xListFontsReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->length, n);
        swaps(&pRep->nFonts, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SListFontsWithInfoReply(ClientPtr pClient, int size,
                            xListFontsWithInfoReply *pRep)
    {
        SwapFont((xQueryFontReply *)pRep, FALSE);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SGetFontPathReply(ClientPtr pClient, int size, xGetFontPathReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->length, n);
        swaps(&pRep->nPaths, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SGetImageReply(ClientPtr pClient, int size, xGetImageReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->length, n);
        swapl(&pRep->visual, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
        /* Fortunately, image doesn't need swapping */
    }
    
    void
    SListInstalledColormapsReply(ClientPtr pClient, int size,
                                 xListInstalledColormapsReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->length, n);
        swaps(&pRep->nColormaps, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SAllocColorReply(pClient, size, pRep)
        ClientPtr		pClient;
        int			size;
        xAllocColorReply	*pRep;
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swaps(&pRep->red, n);
        swaps(&pRep->green, n);
        swaps(&pRep->blue, n);
        swapl(&pRep->pixel, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SAllocNamedColorReply(ClientPtr pClient, int size, xAllocNamedColorReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->pixel, n);
        swaps(&pRep->exactRed, n);
        swaps(&pRep->exactGreen, n);
        swaps(&pRep->exactBlue, n);
        swaps(&pRep->screenRed, n);
        swaps(&pRep->screenGreen, n);
        swaps(&pRep->screenBlue, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SAllocColorCellsReply(ClientPtr pClient, int size, xAllocColorCellsReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->length, n);
        swaps(&pRep->nPixels, n);
        swaps(&pRep->nMasks, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    
    void
    SAllocColorPlanesReply(ClientPtr pClient, int size, xAllocColorPlanesReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->length, n);
        swaps(&pRep->nPixels, n);
        swapl(&pRep->redMask, n);
        swapl(&pRep->greenMask, n);
        swapl(&pRep->blueMask, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    static void
    SwapRGB(xrgb *prgb)
    {
        char n;
    
        swaps(&prgb->red, n);
        swaps(&prgb->green, n);
        swaps(&prgb->blue, n);
    }
    
    void
    SQColorsExtend(ClientPtr pClient, int size, xrgb *prgb)
    {
        int		i, n;
        xrgb	*prgbT;
    
        n = size / sizeof(xrgb);
        prgbT = prgb;
        for(i = 0; i < n; i++)
        {
    	SwapRGB(prgbT);
    	prgbT++;
        }
        (void)WriteToClient(pClient, size, (char *) prgb);
    }
    
    void
    SQueryColorsReply(ClientPtr pClient, int size, xQueryColorsReply* pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->length, n);
        swaps(&pRep->nColors, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SLookupColorReply(ClientPtr pClient, int size, xLookupColorReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swaps(&pRep->exactRed, n);
        swaps(&pRep->exactGreen, n);
        swaps(&pRep->exactBlue, n);
        swaps(&pRep->screenRed, n);
        swaps(&pRep->screenGreen, n);
        swaps(&pRep->screenBlue, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SQueryBestSizeReply(ClientPtr pClient, int size, xQueryBestSizeReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swaps(&pRep->width, n);
        swaps(&pRep->height, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SListExtensionsReply(ClientPtr pClient, int size, xListExtensionsReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->length, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SGetKeyboardMappingReply(ClientPtr pClient, int size,
                             xGetKeyboardMappingReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->length, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SGetPointerMappingReply(ClientPtr pClient, int size,
                            xGetPointerMappingReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->length, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SGetModifierMappingReply(ClientPtr pClient, int size,
                             xGetModifierMappingReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->length, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SGetKeyboardControlReply(ClientPtr pClient, int size, xGetKeyboardControlReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->length, n);
        swapl(&pRep->ledMask, n);
        swaps(&pRep->bellPitch, n);
        swaps(&pRep->bellDuration, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SGetPointerControlReply(ClientPtr pClient, int size, xGetPointerControlReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swaps(&pRep->accelNumerator, n);
        swaps(&pRep->accelDenominator, n);
        swaps(&pRep->threshold, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SGetScreenSaverReply(ClientPtr pClient, int size, xGetScreenSaverReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swaps(&pRep->timeout, n);
        swaps(&pRep->interval, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    void
    SLHostsExtend(ClientPtr pClient, int size, char *buf)
    {
        char *bufT = buf;
        char *endbuf = buf + size;
        while (bufT < endbuf) {
    	xHostEntry *host = (xHostEntry *) bufT;
    	int len = host->length;
            char n;
    	swaps (&host->length, n);
    	bufT += sizeof (xHostEntry) + (((len + 3) >> 2) << 2);
    	}
        (void)WriteToClient (pClient, size, buf);
    }
    
    void
    SListHostsReply(ClientPtr pClient, int size, xListHostsReply *pRep)
    {
        char n;
    
        swaps(&pRep->sequenceNumber, n);
        swapl(&pRep->length, n);
        swaps(&pRep->nHosts, n);
        (void)WriteToClient(pClient, size, (char *) pRep);
    }
    
    
    
    void
    SErrorEvent(xError *from, xError *to)
    {
        to->type = X_Error;
        to->errorCode = from->errorCode;
        cpswaps(from->sequenceNumber, to->sequenceNumber);
        cpswapl(from->resourceID, to->resourceID);
        cpswaps(from->minorCode, to->minorCode);
        to->majorCode = from->majorCode;
    }
    
    void
    SKeyButtonPtrEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        to->u.u.detail = from->u.u.detail;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.keyButtonPointer.time,
            to->u.keyButtonPointer.time);
        cpswapl(from->u.keyButtonPointer.root,
            to->u.keyButtonPointer.root);
        cpswapl(from->u.keyButtonPointer.event,
            to->u.keyButtonPointer.event);
        cpswapl(from->u.keyButtonPointer.child,
            to->u.keyButtonPointer.child);
        cpswaps(from->u.keyButtonPointer.rootX,
            to->u.keyButtonPointer.rootX);
        cpswaps(from->u.keyButtonPointer.rootY,
    	to->u.keyButtonPointer.rootY);
        cpswaps(from->u.keyButtonPointer.eventX,
            to->u.keyButtonPointer.eventX);
        cpswaps(from->u.keyButtonPointer.eventY,
            to->u.keyButtonPointer.eventY);
        cpswaps(from->u.keyButtonPointer.state,
            to->u.keyButtonPointer.state);
        to->u.keyButtonPointer.sameScreen = 
    	from->u.keyButtonPointer.sameScreen;
    }
    
    void
    SEnterLeaveEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        to->u.u.detail = from->u.u.detail;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.enterLeave.time, to->u.enterLeave.time);
        cpswapl(from->u.enterLeave.root, to->u.enterLeave.root);
        cpswapl(from->u.enterLeave.event, to->u.enterLeave.event);
        cpswapl(from->u.enterLeave.child, to->u.enterLeave.child);
        cpswaps(from->u.enterLeave.rootX, to->u.enterLeave.rootX);
        cpswaps(from->u.enterLeave.rootY, to->u.enterLeave.rootY);
        cpswaps(from->u.enterLeave.eventX, to->u.enterLeave.eventX);
        cpswaps(from->u.enterLeave.eventY, to->u.enterLeave.eventY);
        cpswaps(from->u.enterLeave.state, to->u.enterLeave.state);
        to->u.enterLeave.mode = from->u.enterLeave.mode;
        to->u.enterLeave.flags = from->u.enterLeave.flags;
    }
    
    void
    SFocusEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        to->u.u.detail = from->u.u.detail;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.focus.window, to->u.focus.window);
        to->u.focus.mode = from->u.focus.mode;
    }
    
    void
    SExposeEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.expose.window, to->u.expose.window);
        cpswaps(from->u.expose.x, to->u.expose.x);
        cpswaps(from->u.expose.y, to->u.expose.y);
        cpswaps(from->u.expose.width, to->u.expose.width);
        cpswaps(from->u.expose.height, to->u.expose.height);
        cpswaps(from->u.expose.count, to->u.expose.count);
    }
    
    void
    SGraphicsExposureEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.graphicsExposure.drawable,
            to->u.graphicsExposure.drawable);
        cpswaps(from->u.graphicsExposure.x, 
    	to->u.graphicsExposure.x);
        cpswaps(from->u.graphicsExposure.y, 
    	to->u.graphicsExposure.y);
        cpswaps(from->u.graphicsExposure.width, 
    	to->u.graphicsExposure.width);
        cpswaps(from->u.graphicsExposure.height, 
    	to->u.graphicsExposure.height);
        cpswaps(from->u.graphicsExposure.minorEvent,
            to->u.graphicsExposure.minorEvent);
        cpswaps(from->u.graphicsExposure.count,
    	to->u.graphicsExposure.count);
        to->u.graphicsExposure.majorEvent = 
        	from->u.graphicsExposure.majorEvent;
    }
    
    void
    SNoExposureEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.noExposure.drawable, to->u.noExposure.drawable);
        cpswaps(from->u.noExposure.minorEvent, to->u.noExposure.minorEvent);
        to->u.noExposure.majorEvent = from->u.noExposure.majorEvent;
    }
    
    void
    SVisibilityEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.visibility.window, to->u.visibility.window);
        to->u.visibility.state = from->u.visibility.state;
    }
    
    void
    SCreateNotifyEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.createNotify.window, to->u.createNotify.window);
        cpswapl(from->u.createNotify.parent, to->u.createNotify.parent);
        cpswaps(from->u.createNotify.x, to->u.createNotify.x);
        cpswaps(from->u.createNotify.y, to->u.createNotify.y);
        cpswaps(from->u.createNotify.width, to->u.createNotify.width);
        cpswaps(from->u.createNotify.height, to->u.createNotify.height);
        cpswaps(from->u.createNotify.borderWidth,
            to->u.createNotify.borderWidth);
        to->u.createNotify.override = from->u.createNotify.override;
    }
    
    void
    SDestroyNotifyEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.destroyNotify.event, to->u.destroyNotify.event);
        cpswapl(from->u.destroyNotify.window, to->u.destroyNotify.window);
    }
    
    void
    SUnmapNotifyEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.unmapNotify.event, to->u.unmapNotify.event);
        cpswapl(from->u.unmapNotify.window, to->u.unmapNotify.window);
        to->u.unmapNotify.fromConfigure = from->u.unmapNotify.fromConfigure;
    }
    
    void
    SMapNotifyEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.mapNotify.event, to->u.mapNotify.event);
        cpswapl(from->u.mapNotify.window, to->u.mapNotify.window);
        to->u.mapNotify.override = from->u.mapNotify.override;
    }
    
    void
    SMapRequestEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.mapRequest.parent, to->u.mapRequest.parent);
        cpswapl(from->u.mapRequest.window, to->u.mapRequest.window);
    }
    
    void
    SReparentEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.reparent.event, to->u.reparent.event);
        cpswapl(from->u.reparent.window, to->u.reparent.window);
        cpswapl(from->u.reparent.parent, to->u.reparent.parent);
        cpswaps(from->u.reparent.x, to->u.reparent.x);
        cpswaps(from->u.reparent.y, to->u.reparent.y);
        to->u.reparent.override = from->u.reparent.override;
    }
    
    void
    SConfigureNotifyEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.configureNotify.event,
            to->u.configureNotify.event);
        cpswapl(from->u.configureNotify.window,
            to->u.configureNotify.window);
        cpswapl(from->u.configureNotify.aboveSibling,
            to->u.configureNotify.aboveSibling);
        cpswaps(from->u.configureNotify.x, to->u.configureNotify.x);
        cpswaps(from->u.configureNotify.y, to->u.configureNotify.y);
        cpswaps(from->u.configureNotify.width, to->u.configureNotify.width);
        cpswaps(from->u.configureNotify.height,
            to->u.configureNotify.height);
        cpswaps(from->u.configureNotify.borderWidth,
            to->u.configureNotify.borderWidth);
        to->u.configureNotify.override = from->u.configureNotify.override;
    }
    
    void
    SConfigureRequestEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        to->u.u.detail = from->u.u.detail;  /* actually stack-mode */
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.configureRequest.parent,
            to->u.configureRequest.parent);
        cpswapl(from->u.configureRequest.window,
            to->u.configureRequest.window);
        cpswapl(from->u.configureRequest.sibling,
            to->u.configureRequest.sibling);
        cpswaps(from->u.configureRequest.x, to->u.configureRequest.x);
        cpswaps(from->u.configureRequest.y, to->u.configureRequest.y);
        cpswaps(from->u.configureRequest.width,
            to->u.configureRequest.width);
        cpswaps(from->u.configureRequest.height,
            to->u.configureRequest.height);
        cpswaps(from->u.configureRequest.borderWidth,
            to->u.configureRequest.borderWidth);
        cpswaps(from->u.configureRequest.valueMask,
            to->u.configureRequest.valueMask);
    }
    
    
    void
    SGravityEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.gravity.event, to->u.gravity.event);
        cpswapl(from->u.gravity.window, to->u.gravity.window);
        cpswaps(from->u.gravity.x, to->u.gravity.x);
        cpswaps(from->u.gravity.y, to->u.gravity.y);
    }
    
    void
    SResizeRequestEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.resizeRequest.window, to->u.resizeRequest.window);
        cpswaps(from->u.resizeRequest.width, to->u.resizeRequest.width);
        cpswaps(from->u.resizeRequest.height, to->u.resizeRequest.height);
    }
    
    void
    SCirculateEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        to->u.u.detail = from->u.u.detail;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.circulate.event, to->u.circulate.event);
        cpswapl(from->u.circulate.window, to->u.circulate.window);
        cpswapl(from->u.circulate.parent, to->u.circulate.parent);
        to->u.circulate.place = from->u.circulate.place;
    }
    
    void
    SPropertyEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.property.window, to->u.property.window);
        cpswapl(from->u.property.atom, to->u.property.atom);
        cpswapl(from->u.property.time, to->u.property.time);
        to->u.property.state = from->u.property.state;
    }
    
    void
    SSelectionClearEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.selectionClear.time, to->u.selectionClear.time);
        cpswapl(from->u.selectionClear.window, to->u.selectionClear.window);
        cpswapl(from->u.selectionClear.atom, to->u.selectionClear.atom);
    }
    
    void
    SSelectionRequestEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.selectionRequest.time, to->u.selectionRequest.time);
        cpswapl(from->u.selectionRequest.owner,
            to->u.selectionRequest.owner);
        cpswapl(from->u.selectionRequest.requestor,
    	to->u.selectionRequest.requestor);
        cpswapl(from->u.selectionRequest.selection,
    	to->u.selectionRequest.selection);
        cpswapl(from->u.selectionRequest.target,
            to->u.selectionRequest.target);
        cpswapl(from->u.selectionRequest.property,
    	to->u.selectionRequest.property);
    }
    
    void
    SSelectionNotifyEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.selectionNotify.time, to->u.selectionNotify.time);
        cpswapl(from->u.selectionNotify.requestor,
    	to->u.selectionNotify.requestor);
        cpswapl(from->u.selectionNotify.selection,
    	to->u.selectionNotify.selection);
        cpswapl(from->u.selectionNotify.target,
    	to->u.selectionNotify.target);
        cpswapl(from->u.selectionNotify.property,
            to->u.selectionNotify.property);
    }
    
    void
    SColormapEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.colormap.window, to->u.colormap.window);
        cpswapl(from->u.colormap.colormap, to->u.colormap.colormap);
        to->u.colormap.new = from->u.colormap.new;
        to->u.colormap.state = from->u.colormap.state;
    }
    
    void
    SMappingEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        to->u.mappingNotify.request = from->u.mappingNotify.request;
        to->u.mappingNotify.firstKeyCode =
    	from->u.mappingNotify.firstKeyCode;
        to->u.mappingNotify.count = from->u.mappingNotify.count;
    }
    
    void
    SClientMessageEvent(xEvent *from, xEvent *to)
    {
        to->u.u.type = from->u.u.type;
        to->u.u.detail = from->u.u.detail;  /* actually format */
        cpswaps(from->u.u.sequenceNumber, to->u.u.sequenceNumber);
        cpswapl(from->u.clientMessage.window, to->u.clientMessage.window);
        cpswapl(from->u.clientMessage.u.l.type, 
    	    to->u.clientMessage.u.l.type);
        switch (from->u.u.detail) {
           case 8:
              memmove(to->u.clientMessage.u.b.bytes, 
    		  from->u.clientMessage.u.b.bytes,20);
    	  break;
           case 16:
    	  cpswaps(from->u.clientMessage.u.s.shorts0,
    	     to->u.clientMessage.u.s.shorts0);
    	  cpswaps(from->u.clientMessage.u.s.shorts1,
    	     to->u.clientMessage.u.s.shorts1);
    	  cpswaps(from->u.clientMessage.u.s.shorts2,
    	     to->u.clientMessage.u.s.shorts2);
    	  cpswaps(from->u.clientMessage.u.s.shorts3,
    	     to->u.clientMessage.u.s.shorts3);
    	  cpswaps(from->u.clientMessage.u.s.shorts4,
    	     to->u.clientMessage.u.s.shorts4);
    	  cpswaps(from->u.clientMessage.u.s.shorts5,
    	     to->u.clientMessage.u.s.shorts5);
    	  cpswaps(from->u.clientMessage.u.s.shorts6,
    	     to->u.clientMessage.u.s.shorts6);
    	  cpswaps(from->u.clientMessage.u.s.shorts7,
    	     to->u.clientMessage.u.s.shorts7);
    	  cpswaps(from->u.clientMessage.u.s.shorts8,
    	     to->u.clientMessage.u.s.shorts8);
    	  cpswaps(from->u.clientMessage.u.s.shorts9,
    	     to->u.clientMessage.u.s.shorts9);
    	  break;
           case 32:
    	  cpswapl(from->u.clientMessage.u.l.longs0,
    	     to->u.clientMessage.u.l.longs0);
    	  cpswapl(from->u.clientMessage.u.l.longs1,
    	     to->u.clientMessage.u.l.longs1);
    	  cpswapl(from->u.clientMessage.u.l.longs2,
    	     to->u.clientMessage.u.l.longs2);
    	  cpswapl(from->u.clientMessage.u.l.longs3,
    	     to->u.clientMessage.u.l.longs3);
    	  cpswapl(from->u.clientMessage.u.l.longs4,
    	     to->u.clientMessage.u.l.longs4);
    	  break;
           }
    }
    
    void
    SKeymapNotifyEvent(xEvent *from, xEvent *to)
    {
        /* Keymap notify events are special; they have no
           sequence number field, and contain entirely 8-bit data */
        *to = *from;
    }
    
    static void
    SwapConnSetup(xConnSetup *pConnSetup, xConnSetup *pConnSetupT)
    {
        cpswapl(pConnSetup->release, pConnSetupT->release);
        cpswapl(pConnSetup->ridBase, pConnSetupT->ridBase);
        cpswapl(pConnSetup->ridMask, pConnSetupT->ridMask);
        cpswapl(pConnSetup->motionBufferSize, pConnSetupT->motionBufferSize);
        cpswaps(pConnSetup->nbytesVendor, pConnSetupT->nbytesVendor);
        cpswaps(pConnSetup->maxRequestSize, pConnSetupT->maxRequestSize);
        pConnSetupT->minKeyCode = pConnSetup->minKeyCode;
        pConnSetupT->maxKeyCode = pConnSetup->maxKeyCode;
        pConnSetupT->numRoots = pConnSetup->numRoots;
        pConnSetupT->numFormats = pConnSetup->numFormats;
        pConnSetupT->imageByteOrder = pConnSetup->imageByteOrder;
        pConnSetupT->bitmapBitOrder = pConnSetup->bitmapBitOrder;
        pConnSetupT->bitmapScanlineUnit = pConnSetup->bitmapScanlineUnit;
        pConnSetupT->bitmapScanlinePad = pConnSetup->bitmapScanlinePad;
    }
    
    static void
    SwapWinRoot(xWindowRoot *pRoot, xWindowRoot *pRootT)
    {
        cpswapl(pRoot->windowId, pRootT->windowId);
        cpswapl(pRoot->defaultColormap, pRootT->defaultColormap);
        cpswapl(pRoot->whitePixel, pRootT->whitePixel);
        cpswapl(pRoot->blackPixel, pRootT->blackPixel);
        cpswapl(pRoot->currentInputMask, pRootT->currentInputMask);
        cpswaps(pRoot->pixWidth, pRootT->pixWidth);
        cpswaps(pRoot->pixHeight, pRootT->pixHeight);
        cpswaps(pRoot->mmWidth, pRootT->mmWidth);
        cpswaps(pRoot->mmHeight, pRootT->mmHeight);
        cpswaps(pRoot->minInstalledMaps, pRootT->minInstalledMaps);
        cpswaps(pRoot->maxInstalledMaps, pRootT->maxInstalledMaps);
        cpswapl(pRoot->rootVisualID, pRootT->rootVisualID);
        pRootT->backingStore = pRoot->backingStore;
        pRootT->saveUnders = pRoot->saveUnders;
        pRootT->rootDepth = pRoot->rootDepth;
        pRootT->nDepths = pRoot->nDepths;
    }
    
    static void
    SwapVisual(xVisualType *pVis, xVisualType *pVisT)
    {
        cpswapl(pVis->visualID, pVisT->visualID);
        pVisT->class = pVis->class;
        pVisT->bitsPerRGB = pVis->bitsPerRGB;
        cpswaps(pVis->colormapEntries, pVisT->colormapEntries);
        cpswapl(pVis->redMask, pVisT->redMask);
        cpswapl(pVis->greenMask, pVisT->greenMask);
        cpswapl(pVis->blueMask, pVisT->blueMask);
    }
    
    _X_EXPORT void
    SwapConnSetupInfo(
        char 	*pInfo,
        char 	*pInfoT
    )
    {
        int		i, j, k;
        xConnSetup	*pConnSetup = (xConnSetup *)pInfo;
        xDepth	*depth;
        xWindowRoot *root;
    
        SwapConnSetup(pConnSetup, (xConnSetup *)pInfoT);
        pInfo += sizeof(xConnSetup);
        pInfoT += sizeof(xConnSetup);
    
        /* Copy the vendor string */
        i = (pConnSetup->nbytesVendor + 3) & ~3;
        memcpy(pInfoT, pInfo, i);
        pInfo += i;
        pInfoT += i;
    
        /* The Pixmap formats don't need to be swapped, just copied. */
        i = sizeof(xPixmapFormat) * pConnSetup->numFormats;
        memcpy(pInfoT, pInfo, i);
        pInfo += i;
        pInfoT += i;
    
        for(i = 0; i < pConnSetup->numRoots; i++)
        {
    	root = (xWindowRoot*)pInfo;
    	SwapWinRoot(root, (xWindowRoot *)pInfoT);
    	pInfo += sizeof(xWindowRoot);
    	pInfoT += sizeof(xWindowRoot);
    
    	for(j = 0; j < root->nDepths; j++)
    	{
    	    depth = (xDepth*)pInfo;
                ((xDepth *)pInfoT)->depth = depth->depth;
    	    cpswaps(depth->nVisuals, ((xDepth *)pInfoT)->nVisuals);
    	    pInfo += sizeof(xDepth);
    	    pInfoT += sizeof(xDepth);
    	    for(k = 0; k < depth->nVisuals; k++)
    	    {
    		SwapVisual((xVisualType *)pInfo, (xVisualType *)pInfoT);
    		pInfo += sizeof(xVisualType);
    		pInfoT += sizeof(xVisualType);
    	    }
    	}
        }
    }
    
    void
    WriteSConnectionInfo(ClientPtr pClient, unsigned long size, char *pInfo)
    {
        char	*pInfoTBase;
    
        pInfoTBase = (char *) ALLOCATE_LOCAL(size);
        if (!pInfoTBase)
        {
    	pClient->noClientException = -1;
    	return;
        }
        SwapConnSetupInfo(pInfo, pInfoTBase);
        (void)WriteToClient(pClient, (int)size, (char *) pInfoTBase);
        DEALLOCATE_LOCAL(pInfoTBase);
    }
    
    _X_EXPORT void
    SwapConnSetupPrefix(xConnSetupPrefix *pcspFrom, xConnSetupPrefix *pcspTo)
    {
        pcspTo->success = pcspFrom->success;
        pcspTo->lengthReason = pcspFrom->lengthReason;
        cpswaps(pcspFrom->majorVersion, pcspTo->majorVersion);
        cpswaps(pcspFrom->minorVersion, pcspTo->minorVersion);
        cpswaps(pcspFrom->length, pcspTo->length);
    }
    
    void
    WriteSConnSetupPrefix(ClientPtr pClient, xConnSetupPrefix *pcsp)
    {
        xConnSetupPrefix	cspT;
    
        SwapConnSetupPrefix(pcsp, &cspT);
        (void)WriteToClient(pClient, sizeof(cspT), (char *) &cspT);
    }