Mercurial > sdl-ios-xcode

view src/video/Xext/Xxf86vm/XF86VMode.c @ 3487:24d13328c44a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Eric Wing to Sam, hfutrell This one is quite puzzling. I found a partial workaround, but I don't fully understand the reasons yet. First, the console is complaining about not finding a nib for MainWindow. I tried removing the entry for this in the info.plist, and the message went away, but it didn't really change anything. Second, I stepped through this with the debugger and broke up some lines. It seems that the basic act of calling view = [SDL_uikitopenglview alloc]; or even view = [SDL_uikitview alloc] will crash the program. The debugger messages plus the stack trace make me think it's not finding the SDL_uikitview classes for some reason. But I don't understand why this would be. view = [UIView alloc] will not crash the program. For kicks, I added a new definition of a class called SDL_object which subclasses NSObject in the same files as SDL_uikitopenglview and then call view = [SDL_object alloc]; This does not crash the program. So, then I modified SDL_object to subclass UIView. No crash. Next, I made SDL_object subclass UIView<UITextFieldDelegate> . This crashes. So it is the act of conforming to the UITextFieldDelegate protocol that is crashing things. I don't understand why it would crash on alloc though. I'm guessing either a delegate needs to be set somewhere or one of the required methods needs to be implemented. But in the former case, I would not expect a crash, but a silent message to nil and something else doesn't work. And in the latter case, I would expect a compiler warning and an exception thrown instead of a crash. Anyway, my temporary workaround is to change the interface declaration for SDL_uikitview to look like: #if SDL_IPHONE_KEYBOARD @interface SDL_uikitview : UIView<UITextFieldDelegate> { #else @interface SDL_uikitview : UIView { #endif And then disable the keyboard support in the SDL_config_iphoneos.h file. /* enable iPhone keyboard support */ #define SDL_IPHONE_KEYBOARD 0 -Eric On Nov 23, 2009, at 1:43 AM, Sam Lantinga wrote: > I ran into a blocking startup crash with the Happy demo on iPhone OS 3.1.2 on my new iPhone: > > #0 0x323fea14 in _class_isInitialized > #1 0x323fea68 in _class_initialize > #2 0x32403e92 in prepareForMethodLookup > #3 0x32401244 in lookUpMethod > #4 0x323fea10 in _class_lookupMethodAndLoadCache > #5 0x323fe746 in objc_msgSend_uncached > #6 0x323feb26 in _class_initialize > #7 0x323fea58 in _class_initialize > #8 0x32403e92 in prepareForMethodLookup > #9 0x32401244 in lookUpMethod > #10 0x323fea10 in _class_lookupMethodAndLoadCache > #11 0x323fe746 in objc_msgSend_uncached > #12 0x000554dc in UIKit_GL_CreateContext at SDL_uikitopengles.m:103 > #13 0x0004f89e in SDL_GL_CreateContext at SDL_video.c:3155 > #14 0x000579e8 in GLES_CreateRenderer at SDL_renderer_gles.c:282 > #15 0x0004d7b8 in SDL_CreateRenderer at SDL_video.c:1509 > #16 0x00002bc2 in SDL_main at happy.c:156 > #17 0x000571b2 in -[SDLUIKitDelegate postFinishLaunch] at > SDL_uikitappdelegate.m:77 > #18 0x313f9ef2 in __NSFireDelayedPerform > #19 0x32567bb2 in CFRunLoopRunSpecific > #20 0x3256735c in CFRunLoopRunInMode > #21 0x32912cbe in GSEventRunModal > #22 0x32912d6a in GSEventRun > #23 0x32b6276e in -[UIApplication _run] > #24 0x32b61472 in UIApplicationMain > #25 0x00057088 in main at SDL_uikitappdelegate.m:50 > > Any ideas? > > See ya! > -- > -Sam Lantinga, Founder and President, Galaxy Gameworks LLC
author Sam Lantinga <slouken@libsdl.org>
date Tue, 24 Nov 2009 08:12:32 +0000
parents 90de10bc38ec
children 81dde1b00bf1
line wrap: on
line source

/* $XConsortium: XF86VMode.c /main/2 1995/11/14 18:17:58 kaleb $ */
/* $XFree86: xc/lib/Xxf86vm/XF86VMode.c,v 3.32 2001/07/25 15:04:54 dawes Exp $ */
/*

Copyright (c) 1995  Kaleb S. KEITHLEY

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 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 Kaleb S. KEITHLEY 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 Kaleb S. KEITHLEY 
shall not be used in advertising or otherwise to promote the sale, use 
or other dealings in this Software without prior written authorization
from Kaleb S. KEITHLEY.

*/
/* $XConsortium: XF86VMode.c /main/4 1996/01/16 07:52:25 kaleb CHECKEDOUT $ */

/* THIS IS NOT AN X CONSORTIUM STANDARD */

#define NEED_EVENTS
#define NEED_REPLIES

#ifndef XBUILD_IN_CLIENT
#include <X11/Xlibint.h>
#include "../extensions/xf86vmstr.h"
#include "../extensions/Xext.h"
#include "../extensions/extutil.h"
#else
#include "lib/X11/Xlibint.h"
#include "include/extensions/xf86vmstr.h"
#include "include/extensions/Xext.h"
#include "include/extensions/extutil.h"
#endif

#ifdef DEBUG
#include <stdio.h>
#endif

#ifndef MODE_BAD
#define MODE_BAD 255
#endif

static XExtensionInfo _xf86vidmode_info_data;
static XExtensionInfo *xf86vidmode_info = &_xf86vidmode_info_data;
static char *xf86vidmode_extension_name = XF86VIDMODENAME;

#define XF86VidModeCheckExtension(dpy,i,val) \
  XextCheckExtension (dpy, i, xf86vidmode_extension_name, val)

/*****************************************************************************
 *                                                                           *
 *			   private utility routines                          *
 *                                                                           *
 *****************************************************************************/

static XEXT_CLOSE_DISPLAY_PROTO(close_display);
static /* const */ XExtensionHooks xf86vidmode_extension_hooks = {
    NULL,                       /* create_gc */
    NULL,                       /* copy_gc */
    NULL,                       /* flush_gc */
    NULL,                       /* free_gc */
    NULL,                       /* create_font */
    NULL,                       /* free_font */
    close_display,              /* close_display */
    NULL,                       /* wire_to_event */
    NULL,                       /* event_to_wire */
    NULL,                       /* error */
    NULL,                       /* error_string */
};

static
XEXT_GENERATE_FIND_DISPLAY(find_display, xf86vidmode_info,
                           xf86vidmode_extension_name,
                           &xf86vidmode_extension_hooks, 0, NULL)
     static XEXT_GENERATE_CLOSE_DISPLAY(close_display, xf86vidmode_info)
/*****************************************************************************
 *                                                                           *
 *		    public XFree86-VidMode Extension routines                *
 *                                                                           *
 *****************************************************************************/
  Bool
SDL_NAME(XF86VidModeQueryExtension) (dpy, event_basep, error_basep)
     Display *dpy;
     int *event_basep, *error_basep;
{
    XExtDisplayInfo *info = find_display(dpy);

    if (XextHasExtension(info)) {
        *event_basep = info->codes->first_event;
        *error_basep = info->codes->first_error;
        return True;
    } else {
        return False;
    }
}

Bool SDL_NAME(XF86VidModeQueryVersion) (dpy, majorVersion, minorVersion)
     Display *
         dpy;
     int *
         majorVersion;
     int *
         minorVersion;
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86VidModeQueryVersionReply rep;
    xXF86VidModeQueryVersionReq *req;

    XF86VidModeCheckExtension(dpy, info, False);

    LockDisplay(dpy);
    GetReq(XF86VidModeQueryVersion, req);
    req->reqType = info->codes->major_opcode;
    req->xf86vidmodeReqType = X_XF86VidModeQueryVersion;
    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
        UnlockDisplay(dpy);
        SyncHandle();
        return False;
    }
    *majorVersion = rep.majorVersion;
    *minorVersion = rep.minorVersion;
    UnlockDisplay(dpy);
    SyncHandle();
    if (*majorVersion >= 2)
        SDL_NAME(XF86VidModeSetClientVersion) (dpy);
    return True;
}

Bool SDL_NAME(XF86VidModeSetClientVersion) (Display * dpy)
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86VidModeSetClientVersionReq *req;

    XF86VidModeCheckExtension(dpy, info, False);

    LockDisplay(dpy);
    GetReq(XF86VidModeSetClientVersion, req);
    req->reqType = info->codes->major_opcode;
    req->xf86vidmodeReqType = X_XF86VidModeSetClientVersion;
    req->major = XF86VIDMODE_MAJOR_VERSION;
    req->minor = XF86VIDMODE_MINOR_VERSION;
    UnlockDisplay(dpy);
    SyncHandle();
    return True;
}

Bool
SDL_NAME(XF86VidModeSetGamma) (Display * dpy, int screen,
                               SDL_NAME(XF86VidModeGamma) * Gamma)
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86VidModeSetGammaReq *req;

    XF86VidModeCheckExtension(dpy, info, False);

    LockDisplay(dpy);
    GetReq(XF86VidModeSetGamma, req);
    req->reqType = info->codes->major_opcode;
    req->xf86vidmodeReqType = X_XF86VidModeSetGamma;
    req->screen = screen;
    req->red = (CARD32) (Gamma->red * 10000.);
    req->green = (CARD32) (Gamma->green * 10000.);
    req->blue = (CARD32) (Gamma->blue * 10000.);
    UnlockDisplay(dpy);
    SyncHandle();
    return True;
}

Bool
SDL_NAME(XF86VidModeGetGamma) (Display * dpy, int screen,
                               SDL_NAME(XF86VidModeGamma) * Gamma)
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86VidModeGetGammaReply rep;
    xXF86VidModeGetGammaReq *req;

    XF86VidModeCheckExtension(dpy, info, False);

    LockDisplay(dpy);
    GetReq(XF86VidModeGetGamma, req);
    req->reqType = info->codes->major_opcode;
    req->xf86vidmodeReqType = X_XF86VidModeGetGamma;
    req->screen = screen;
    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
        UnlockDisplay(dpy);
        SyncHandle();
        return False;
    }
    Gamma->red = ((float) rep.red) / 10000.;
    Gamma->green = ((float) rep.green) / 10000.;
    Gamma->blue = ((float) rep.blue) / 10000.;
    UnlockDisplay(dpy);
    SyncHandle();
    return True;
}

Bool SDL_NAME(XF86VidModeGetModeLine) (dpy, screen, dotclock, modeline)
     Display *
         dpy;
     int
         screen;
     int *
         dotclock;
SDL_NAME(XF86VidModeModeLine) * modeline;
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86VidModeGetModeLineReply rep;
    xXF86OldVidModeGetModeLineReply oldrep;
    xXF86VidModeGetModeLineReq *req;
    int majorVersion, minorVersion;

    XF86VidModeCheckExtension(dpy, info, False);
    SDL_NAME(XF86VidModeQueryVersion) (dpy, &majorVersion, &minorVersion);

    LockDisplay(dpy);
    GetReq(XF86VidModeGetModeLine, req);
    req->reqType = info->codes->major_opcode;
    req->xf86vidmodeReqType = X_XF86VidModeGetModeLine;
    req->screen = screen;

    if (majorVersion < 2) {
        if (!_XReply(dpy, (xReply *) & oldrep,
                     (SIZEOF(xXF86OldVidModeGetModeLineReply) -
                      SIZEOF(xReply)) >> 2, xFalse)) {
            UnlockDisplay(dpy);
            SyncHandle();
            return False;
        }
        *dotclock = oldrep.dotclock;
        modeline->hdisplay = oldrep.hdisplay;
        modeline->hsyncstart = oldrep.hsyncstart;
        modeline->hsyncend = oldrep.hsyncend;
        modeline->htotal = oldrep.htotal;
        modeline->hskew = 0;
        modeline->vdisplay = oldrep.vdisplay;
        modeline->vsyncstart = oldrep.vsyncstart;
        modeline->vsyncend = oldrep.vsyncend;
        modeline->vtotal = oldrep.vtotal;
        modeline->flags = oldrep.flags;
        modeline->privsize = oldrep.privsize;
    } else {
        if (!_XReply(dpy, (xReply *) & rep,
                     (SIZEOF(xXF86VidModeGetModeLineReply) -
                      SIZEOF(xReply)) >> 2, xFalse)) {
            UnlockDisplay(dpy);
            SyncHandle();
            return False;
        }
        *dotclock = rep.dotclock;
        modeline->hdisplay = rep.hdisplay;
        modeline->hsyncstart = rep.hsyncstart;
        modeline->hsyncend = rep.hsyncend;
        modeline->htotal = rep.htotal;
        modeline->hskew = rep.hskew;
        modeline->vdisplay = rep.vdisplay;
        modeline->vsyncstart = rep.vsyncstart;
        modeline->vsyncend = rep.vsyncend;
        modeline->vtotal = rep.vtotal;
        modeline->flags = rep.flags;
        modeline->privsize = rep.privsize;
    }

    if (modeline->privsize > 0) {
        if (!(modeline->private = Xcalloc(modeline->privsize, sizeof(INT32)))) {
            _XEatData(dpy, (modeline->privsize) * sizeof(INT32));
            Xfree(modeline->private);
            return False;
        }
        _XRead(dpy, (char *) modeline->private,
               modeline->privsize * sizeof(INT32));
    } else {
        modeline->private = NULL;
    }
    UnlockDisplay(dpy);
    SyncHandle();
    return True;
}

Bool
SDL_NAME(XF86VidModeGetAllModeLines) (dpy, screen, modecount, modelinesPtr)
     Display *dpy;
     int screen;
     int *modecount;
SDL_NAME(XF86VidModeModeInfo) *** modelinesPtr;
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86VidModeGetAllModeLinesReply rep;
    xXF86VidModeGetAllModeLinesReq *req;
    SDL_NAME(XF86VidModeModeInfo) * mdinfptr, **modelines;
    xXF86VidModeModeInfo xmdline;
    xXF86OldVidModeModeInfo oldxmdline;
    int i;
    int majorVersion, minorVersion;
    Bool protocolBug = False;

    XF86VidModeCheckExtension(dpy, info, False);

    /*
     * Note: There was a bug in the protocol implementation in versions
     * 0.x with x < 8 (the .private field wasn't being passed over the wire).
     * Check the server's version, and accept the old format if appropriate.
     */

    SDL_NAME(XF86VidModeQueryVersion) (dpy, &majorVersion, &minorVersion);
    if (majorVersion == 0 && minorVersion < 8) {
        protocolBug = True;
#ifdef DEBUG
        fprintf(stderr, "XF86VidModeGetAllModeLines: Warning: Xserver is"
                "running an old version (%d.%d)\n", majorVersion,
                minorVersion);
#endif
    }

    LockDisplay(dpy);
    GetReq(XF86VidModeGetAllModeLines, req);
    req->reqType = info->codes->major_opcode;
    req->xf86vidmodeReqType = X_XF86VidModeGetAllModeLines;
    req->screen = screen;
    if (!_XReply(dpy, (xReply *) & rep,
                 (SIZEOF(xXF86VidModeGetAllModeLinesReply) -
                  SIZEOF(xReply)) >> 2, xFalse)) {
        UnlockDisplay(dpy);
        SyncHandle();
        return False;
    }

    *modecount = rep.modecount;

    if (!
        (modelines =
         (SDL_NAME(XF86VidModeModeInfo) **) Xcalloc(rep.modecount,
                                                    sizeof(SDL_NAME
                                                           (XF86VidModeModeInfo)
                                                           *) +
                                                    sizeof(SDL_NAME
                                                           (XF86VidModeModeInfo)))))
    {
        if (majorVersion < 2)
            _XEatData(dpy, (rep.modecount) * sizeof(xXF86OldVidModeModeInfo));
        else
            _XEatData(dpy, (rep.modecount) * sizeof(xXF86VidModeModeInfo));
        Xfree(modelines);
        UnlockDisplay(dpy);
        SyncHandle();
        return False;
    }
    mdinfptr = (SDL_NAME(XF86VidModeModeInfo) *) ((char *) modelines
                                                  +
                                                  rep.modecount *
                                                  sizeof(SDL_NAME
                                                         (XF86VidModeModeInfo)
                                                         *));

    for (i = 0; i < rep.modecount; i++) {
        modelines[i] = mdinfptr++;
        if (majorVersion < 2) {
            _XRead(dpy, (char *) &oldxmdline,
                   sizeof(xXF86OldVidModeModeInfo));
            modelines[i]->dotclock = oldxmdline.dotclock;
            modelines[i]->hdisplay = oldxmdline.hdisplay;
            modelines[i]->hsyncstart = oldxmdline.hsyncstart;
            modelines[i]->hsyncend = oldxmdline.hsyncend;
            modelines[i]->htotal = oldxmdline.htotal;
            modelines[i]->hskew = 0;
            modelines[i]->vdisplay = oldxmdline.vdisplay;
            modelines[i]->vsyncstart = oldxmdline.vsyncstart;
            modelines[i]->vsyncend = oldxmdline.vsyncend;
            modelines[i]->vtotal = oldxmdline.vtotal;
            modelines[i]->flags = oldxmdline.flags;
            if (protocolBug) {
                modelines[i]->privsize = 0;
                modelines[i]->private = NULL;
            } else {
                modelines[i]->privsize = oldxmdline.privsize;
                if (oldxmdline.privsize > 0) {
                    if (!(modelines[i]->private =
                          Xcalloc(oldxmdline.privsize, sizeof(INT32)))) {
                        _XEatData(dpy, (oldxmdline.privsize) * sizeof(INT32));
                        Xfree(modelines[i]->private);
                    } else {
                        _XRead(dpy, (char *) modelines[i]->private,
                               oldxmdline.privsize * sizeof(INT32));
                    }
                } else {
                    modelines[i]->private = NULL;
                }
            }
        } else {
            _XRead(dpy, (char *) &xmdline, sizeof(xXF86VidModeModeInfo));
            modelines[i]->dotclock = xmdline.dotclock;
            modelines[i]->hdisplay = xmdline.hdisplay;
            modelines[i]->hsyncstart = xmdline.hsyncstart;
            modelines[i]->hsyncend = xmdline.hsyncend;
            modelines[i]->htotal = xmdline.htotal;
            modelines[i]->hskew = xmdline.hskew;
            modelines[i]->vdisplay = xmdline.vdisplay;
            modelines[i]->vsyncstart = xmdline.vsyncstart;
            modelines[i]->vsyncend = xmdline.vsyncend;
            modelines[i]->vtotal = xmdline.vtotal;
            modelines[i]->flags = xmdline.flags;
            if (protocolBug) {
                modelines[i]->privsize = 0;
                modelines[i]->private = NULL;
            } else {
                modelines[i]->privsize = xmdline.privsize;
                if (xmdline.privsize > 0) {
                    if (!(modelines[i]->private =
                          Xcalloc(xmdline.privsize, sizeof(INT32)))) {
                        _XEatData(dpy, (xmdline.privsize) * sizeof(INT32));
                        Xfree(modelines[i]->private);
                    } else {
                        _XRead(dpy, (char *) modelines[i]->private,
                               xmdline.privsize * sizeof(INT32));
                    }
                } else {
                    modelines[i]->private = NULL;
                }
            }
        }
    }
    *modelinesPtr = modelines;
    UnlockDisplay(dpy);
    SyncHandle();
    return True;
}

/*
 * GetReq replacement for use with VidMode protocols earlier than 2.0
 */
#if !defined(UNIXCPP) || defined(ANSICPP)
#define GetOldReq(name, oldname, req) \
        WORD64ALIGN\
	if ((dpy->bufptr + SIZEOF(x##oldname##Req)) > dpy->bufmax)\
		_XFlush(dpy);\
	req = (x##oldname##Req *)(dpy->last_req = dpy->bufptr);\
	req->reqType = X_##name;\
	req->length = (SIZEOF(x##oldname##Req))>>2;\
	dpy->bufptr += SIZEOF(x##oldname##Req);\
	dpy->request++

#else /* non-ANSI C uses empty comment instead of "##" for token concatenation */
#define GetOldReq(name, oldname, req) \
        WORD64ALIGN\
	if ((dpy->bufptr + SIZEOF(x/**/oldname/**/Req)) > dpy->bufmax)\
		_XFlush(dpy);\
	req = (x/**/oldname/**/Req *)(dpy->last_req = dpy->bufptr);\
	req->reqType = X_/**/name;\
	req->length = (SIZEOF(x/**/oldname/**/Req))>>2;\
	dpy->bufptr += SIZEOF(x/**/oldname/**/Req);\
	dpy->request++
#endif

Bool
SDL_NAME(XF86VidModeAddModeLine) (dpy, screen, newmodeline, aftermodeline)
     Display *dpy;
     int screen;
SDL_NAME(XF86VidModeModeInfo) * newmodeline;
SDL_NAME(XF86VidModeModeInfo) * aftermodeline;
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86VidModeAddModeLineReq *req;
    xXF86OldVidModeAddModeLineReq *oldreq;
    int majorVersion, minorVersion;

    XF86VidModeCheckExtension(dpy, info, False);
    SDL_NAME(XF86VidModeQueryVersion) (dpy, &majorVersion, &minorVersion);

    LockDisplay(dpy);
    if (majorVersion < 2) {
        GetOldReq(XF86VidModeAddModeLine, XF86OldVidModeAddModeLine, oldreq);
        oldreq->reqType = info->codes->major_opcode;
        oldreq->xf86vidmodeReqType = X_XF86VidModeAddModeLine;
        oldreq->screen = screen;
        oldreq->dotclock = newmodeline->dotclock;
        oldreq->hdisplay = newmodeline->hdisplay;
        oldreq->hsyncstart = newmodeline->hsyncstart;
        oldreq->hsyncend = newmodeline->hsyncend;
        oldreq->htotal = newmodeline->htotal;
        oldreq->vdisplay = newmodeline->vdisplay;
        oldreq->vsyncstart = newmodeline->vsyncstart;
        oldreq->vsyncend = newmodeline->vsyncend;
        oldreq->vtotal = newmodeline->vtotal;
        oldreq->flags = newmodeline->flags;
        oldreq->privsize = newmodeline->privsize;
        if (aftermodeline != NULL) {
            oldreq->after_dotclock = aftermodeline->dotclock;
            oldreq->after_hdisplay = aftermodeline->hdisplay;
            oldreq->after_hsyncstart = aftermodeline->hsyncstart;
            oldreq->after_hsyncend = aftermodeline->hsyncend;
            oldreq->after_htotal = aftermodeline->htotal;
            oldreq->after_vdisplay = aftermodeline->vdisplay;
            oldreq->after_vsyncstart = aftermodeline->vsyncstart;
            oldreq->after_vsyncend = aftermodeline->vsyncend;
            oldreq->after_vtotal = aftermodeline->vtotal;
            oldreq->after_flags = aftermodeline->flags;
        } else {
            oldreq->after_dotclock = 0;
            oldreq->after_hdisplay = 0;
            oldreq->after_hsyncstart = 0;
            oldreq->after_hsyncend = 0;
            oldreq->after_htotal = 0;
            oldreq->after_vdisplay = 0;
            oldreq->after_vsyncstart = 0;
            oldreq->after_vsyncend = 0;
            oldreq->after_vtotal = 0;
            oldreq->after_flags = 0;
        }
        if (newmodeline->privsize) {
            oldreq->length += newmodeline->privsize;
            Data32(dpy, (long *) newmodeline->private,
                   newmodeline->privsize * sizeof(INT32));
        }
    } else {
        GetReq(XF86VidModeAddModeLine, req);
        req->reqType = info->codes->major_opcode;
        req->xf86vidmodeReqType = X_XF86VidModeAddModeLine;
        req->screen = screen;
        req->dotclock = newmodeline->dotclock;
        req->hdisplay = newmodeline->hdisplay;
        req->hsyncstart = newmodeline->hsyncstart;
        req->hsyncend = newmodeline->hsyncend;
        req->htotal = newmodeline->htotal;
        req->hskew = newmodeline->hskew;
        req->vdisplay = newmodeline->vdisplay;
        req->vsyncstart = newmodeline->vsyncstart;
        req->vsyncend = newmodeline->vsyncend;
        req->vtotal = newmodeline->vtotal;
        req->flags = newmodeline->flags;
        req->privsize = newmodeline->privsize;
        if (aftermodeline != NULL) {
            req->after_dotclock = aftermodeline->dotclock;
            req->after_hdisplay = aftermodeline->hdisplay;
            req->after_hsyncstart = aftermodeline->hsyncstart;
            req->after_hsyncend = aftermodeline->hsyncend;
            req->after_htotal = aftermodeline->htotal;
            req->after_hskew = aftermodeline->hskew;
            req->after_vdisplay = aftermodeline->vdisplay;
            req->after_vsyncstart = aftermodeline->vsyncstart;
            req->after_vsyncend = aftermodeline->vsyncend;
            req->after_vtotal = aftermodeline->vtotal;
            req->after_flags = aftermodeline->flags;
        } else {
            req->after_dotclock = 0;
            req->after_hdisplay = 0;
            req->after_hsyncstart = 0;
            req->after_hsyncend = 0;
            req->after_htotal = 0;
            req->after_hskew = 0;
            req->after_vdisplay = 0;
            req->after_vsyncstart = 0;
            req->after_vsyncend = 0;
            req->after_vtotal = 0;
            req->after_flags = 0;
        }
        if (newmodeline->privsize) {
            req->length += newmodeline->privsize;
            Data32(dpy, (long *) newmodeline->private,
                   newmodeline->privsize * sizeof(INT32));
        }
    }
    UnlockDisplay(dpy);
    SyncHandle();
    return True;
}

Bool SDL_NAME(XF86VidModeDeleteModeLine) (dpy, screen, modeline)
     Display *
         dpy;
     int
         screen;
SDL_NAME(XF86VidModeModeInfo) * modeline;
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86VidModeDeleteModeLineReq *req;
    xXF86OldVidModeDeleteModeLineReq *oldreq;
    int majorVersion, minorVersion;

    XF86VidModeCheckExtension(dpy, info, 0);
    SDL_NAME(XF86VidModeQueryVersion) (dpy, &majorVersion, &minorVersion);

    LockDisplay(dpy);
    if (majorVersion < 2) {
        GetOldReq(XF86VidModeDeleteModeLine, XF86OldVidModeDeleteModeLine,
                  oldreq);
        oldreq->reqType = info->codes->major_opcode;
        oldreq->xf86vidmodeReqType = X_XF86VidModeDeleteModeLine;
        oldreq->screen = screen;
        oldreq->dotclock = modeline->dotclock;
        oldreq->hdisplay = modeline->hdisplay;
        oldreq->hsyncstart = modeline->hsyncstart;
        oldreq->hsyncend = modeline->hsyncend;
        oldreq->htotal = modeline->htotal;
        oldreq->vdisplay = modeline->vdisplay;
        oldreq->vsyncstart = modeline->vsyncstart;
        oldreq->vsyncend = modeline->vsyncend;
        oldreq->vtotal = modeline->vtotal;
        oldreq->flags = modeline->flags;
        oldreq->privsize = modeline->privsize;
        if (modeline->privsize) {
            oldreq->length += modeline->privsize;
            Data32(dpy, (long *) modeline->private,
                   modeline->privsize * sizeof(INT32));
        }
    } else {
        GetReq(XF86VidModeDeleteModeLine, req);
        req->reqType = info->codes->major_opcode;
        req->xf86vidmodeReqType = X_XF86VidModeDeleteModeLine;
        req->screen = screen;
        req->dotclock = modeline->dotclock;
        req->hdisplay = modeline->hdisplay;
        req->hsyncstart = modeline->hsyncstart;
        req->hsyncend = modeline->hsyncend;
        req->htotal = modeline->htotal;
        req->hskew = modeline->hskew;
        req->vdisplay = modeline->vdisplay;
        req->vsyncstart = modeline->vsyncstart;
        req->vsyncend = modeline->vsyncend;
        req->vtotal = modeline->vtotal;
        req->flags = modeline->flags;
        req->privsize = modeline->privsize;
        if (modeline->privsize) {
            req->length += modeline->privsize;
            Data32(dpy, (long *) modeline->private,
                   modeline->privsize * sizeof(INT32));
        }
    }
    UnlockDisplay(dpy);
    SyncHandle();
    return True;
}

Bool SDL_NAME(XF86VidModeModModeLine) (dpy, screen, modeline)
     Display *
         dpy;
     int
         screen;
SDL_NAME(XF86VidModeModeLine) * modeline;
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86VidModeModModeLineReq *req;
    xXF86OldVidModeModModeLineReq *oldreq;
    int majorVersion, minorVersion;

    XF86VidModeCheckExtension(dpy, info, 0);
    SDL_NAME(XF86VidModeQueryVersion) (dpy, &majorVersion, &minorVersion);

    LockDisplay(dpy);
    if (majorVersion < 2) {
        GetOldReq(XF86VidModeModModeLine, XF86OldVidModeModModeLine, oldreq);
        oldreq->reqType = info->codes->major_opcode;
        oldreq->xf86vidmodeReqType = X_XF86VidModeModModeLine;
        oldreq->screen = screen;
        oldreq->hdisplay = modeline->hdisplay;
        oldreq->hsyncstart = modeline->hsyncstart;
        oldreq->hsyncend = modeline->hsyncend;
        oldreq->htotal = modeline->htotal;
        oldreq->vdisplay = modeline->vdisplay;
        oldreq->vsyncstart = modeline->vsyncstart;
        oldreq->vsyncend = modeline->vsyncend;
        oldreq->vtotal = modeline->vtotal;
        oldreq->flags = modeline->flags;
        oldreq->privsize = modeline->privsize;
        if (modeline->privsize) {
            oldreq->length += modeline->privsize;
            Data32(dpy, (long *) modeline->private,
                   modeline->privsize * sizeof(INT32));
        }
    } else {
        GetReq(XF86VidModeModModeLine, req);
        req->reqType = info->codes->major_opcode;
        req->xf86vidmodeReqType = X_XF86VidModeModModeLine;
        req->screen = screen;
        req->hdisplay = modeline->hdisplay;
        req->hsyncstart = modeline->hsyncstart;
        req->hsyncend = modeline->hsyncend;
        req->htotal = modeline->htotal;
        req->hskew = modeline->hskew;
        req->vdisplay = modeline->vdisplay;
        req->vsyncstart = modeline->vsyncstart;
        req->vsyncend = modeline->vsyncend;
        req->vtotal = modeline->vtotal;
        req->flags = modeline->flags;
        req->privsize = modeline->privsize;
        if (modeline->privsize) {
            req->length += modeline->privsize;
            Data32(dpy, (long *) modeline->private,
                   modeline->privsize * sizeof(INT32));
        }
    }
    UnlockDisplay(dpy);
    SyncHandle();
    return True;
}

Status SDL_NAME(XF86VidModeValidateModeLine) (dpy, screen, modeline)
     Display *
         dpy;
     int
         screen;
SDL_NAME(XF86VidModeModeInfo) * modeline;
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86VidModeValidateModeLineReq *req;
    xXF86OldVidModeValidateModeLineReq *oldreq;
    xXF86VidModeValidateModeLineReply rep;
    int majorVersion, minorVersion;

    XF86VidModeCheckExtension(dpy, info, 0);
    SDL_NAME(XF86VidModeQueryVersion) (dpy, &majorVersion, &minorVersion);

    LockDisplay(dpy);

    if (majorVersion < 2) {
        GetOldReq(XF86VidModeValidateModeLine,
                  XF86OldVidModeValidateModeLine, oldreq);
        oldreq->reqType = info->codes->major_opcode;
        oldreq->xf86vidmodeReqType = X_XF86VidModeValidateModeLine;
        oldreq->screen = screen;
        oldreq->dotclock = modeline->dotclock;
        oldreq->hdisplay = modeline->hdisplay;
        oldreq->hsyncstart = modeline->hsyncstart;
        oldreq->hsyncend = modeline->hsyncend;
        oldreq->htotal = modeline->htotal;
        oldreq->vdisplay = modeline->vdisplay;
        oldreq->vsyncstart = modeline->vsyncstart;
        oldreq->vsyncend = modeline->vsyncend;
        oldreq->vtotal = modeline->vtotal;
        oldreq->flags = modeline->flags;
        oldreq->privsize = modeline->privsize;
        if (modeline->privsize) {
            oldreq->length += modeline->privsize;
            Data32(dpy, (long *) modeline->private,
                   modeline->privsize * sizeof(INT32));
        }
    } else {
        GetReq(XF86VidModeValidateModeLine, req);
        req->reqType = info->codes->major_opcode;
        req->xf86vidmodeReqType = X_XF86VidModeValidateModeLine;
        req->screen = screen;
        req->dotclock = modeline->dotclock;
        req->hdisplay = modeline->hdisplay;
        req->hsyncstart = modeline->hsyncstart;
        req->hsyncend = modeline->hsyncend;
        req->htotal = modeline->htotal;
        req->hskew = modeline->hskew;
        req->vdisplay = modeline->vdisplay;
        req->vsyncstart = modeline->vsyncstart;
        req->vsyncend = modeline->vsyncend;
        req->vtotal = modeline->vtotal;
        req->flags = modeline->flags;
        req->privsize = modeline->privsize;
        if (modeline->privsize) {
            req->length += modeline->privsize;
            Data32(dpy, (long *) modeline->private,
                   modeline->privsize * sizeof(INT32));
        }
    }
    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
        UnlockDisplay(dpy);
        SyncHandle();
        return MODE_BAD;
    }
    UnlockDisplay(dpy);
    SyncHandle();
    return rep.status;
}

Bool SDL_NAME(XF86VidModeSwitchMode) (dpy, screen, zoom)
     Display *
         dpy;
     int
         screen;
     int
         zoom;
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86VidModeSwitchModeReq *req;

    XF86VidModeCheckExtension(dpy, info, False);

    LockDisplay(dpy);
    GetReq(XF86VidModeSwitchMode, req);
    req->reqType = info->codes->major_opcode;
    req->xf86vidmodeReqType = X_XF86VidModeSwitchMode;
    req->screen = screen;
    req->zoom = zoom;
    UnlockDisplay(dpy);
    SyncHandle();
    return True;
}

Bool SDL_NAME(XF86VidModeSwitchToMode) (dpy, screen, modeline)
     Display *
         dpy;
     int
         screen;
SDL_NAME(XF86VidModeModeInfo) * modeline;
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86VidModeSwitchToModeReq *req;
    xXF86OldVidModeSwitchToModeReq *oldreq;
    int majorVersion, minorVersion;
    Bool protocolBug = False;

    XF86VidModeCheckExtension(dpy, info, False);

    /*
     * Note: There was a bug in the protocol implementation in versions
     * 0.x with x < 8 (the .private field wasn't expected to be sent over
     * the wire).  Check the server's version, and accept the old format
     * if appropriate.
     */

    SDL_NAME(XF86VidModeQueryVersion) (dpy, &majorVersion, &minorVersion);
    if (majorVersion == 0 && minorVersion < 8) {
        protocolBug = True;
#ifdef DEBUG
        fprintf(stderr, "XF86VidModeSwitchToMode: Warning: Xserver is"
                "running an old version (%d.%d)\n", majorVersion,
                minorVersion);
#endif
    }

    LockDisplay(dpy);
    if (majorVersion < 2) {
        GetOldReq(XF86VidModeSwitchToMode, XF86OldVidModeSwitchToMode,
                  oldreq);
        oldreq->reqType = info->codes->major_opcode;
        oldreq->xf86vidmodeReqType = X_XF86VidModeSwitchToMode;
        oldreq->screen = screen;
        oldreq->dotclock = modeline->dotclock;
        oldreq->hdisplay = modeline->hdisplay;
        oldreq->hsyncstart = modeline->hsyncstart;
        oldreq->hsyncend = modeline->hsyncend;
        oldreq->htotal = modeline->htotal;
        oldreq->vdisplay = modeline->vdisplay;
        oldreq->vsyncstart = modeline->vsyncstart;
        oldreq->vsyncend = modeline->vsyncend;
        oldreq->vtotal = modeline->vtotal;
        oldreq->flags = modeline->flags;
        if (protocolBug) {
            oldreq->privsize = 0;
        } else {
            oldreq->privsize = modeline->privsize;
            if (modeline->privsize) {
                oldreq->length += modeline->privsize;
                Data32(dpy, (long *) modeline->private,
                       modeline->privsize * sizeof(INT32));
            }
        }
    } else {
        GetReq(XF86VidModeSwitchToMode, req);
        req->reqType = info->codes->major_opcode;
        req->xf86vidmodeReqType = X_XF86VidModeSwitchToMode;
        req->screen = screen;
        req->dotclock = modeline->dotclock;
        req->hdisplay = modeline->hdisplay;
        req->hsyncstart = modeline->hsyncstart;
        req->hsyncend = modeline->hsyncend;
        req->htotal = modeline->htotal;
        req->hskew = modeline->hskew;
        req->vdisplay = modeline->vdisplay;
        req->vsyncstart = modeline->vsyncstart;
        req->vsyncend = modeline->vsyncend;
        req->vtotal = modeline->vtotal;
        req->flags = modeline->flags;
        if (protocolBug) {
            req->privsize = 0;
        } else {
            req->privsize = modeline->privsize;
            if (modeline->privsize) {
                req->length += modeline->privsize;
                Data32(dpy, (long *) modeline->private,
                       modeline->privsize * sizeof(INT32));
            }
        }
    }
    UnlockDisplay(dpy);
    SyncHandle();
    return True;
}

Bool SDL_NAME(XF86VidModeLockModeSwitch) (dpy, screen, lock)
     Display *
         dpy;
     int
         screen;
     int
         lock;
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86VidModeLockModeSwitchReq *req;

    XF86VidModeCheckExtension(dpy, info, False);

    LockDisplay(dpy);
    GetReq(XF86VidModeLockModeSwitch, req);
    req->reqType = info->codes->major_opcode;
    req->xf86vidmodeReqType = X_XF86VidModeLockModeSwitch;
    req->screen = screen;
    req->lock = lock;
    UnlockDisplay(dpy);
    SyncHandle();
    return True;
}

Bool SDL_NAME(XF86VidModeGetMonitor) (dpy, screen, monitor)
     Display *
         dpy;
     int
         screen;
SDL_NAME(XF86VidModeMonitor) * monitor;
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86VidModeGetMonitorReply rep;
    xXF86VidModeGetMonitorReq *req;
    CARD32 syncrange;
    int i;

    XF86VidModeCheckExtension(dpy, info, False);

    LockDisplay(dpy);
    GetReq(XF86VidModeGetMonitor, req);
    req->reqType = info->codes->major_opcode;
    req->xf86vidmodeReqType = X_XF86VidModeGetMonitor;
    req->screen = screen;
    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
        UnlockDisplay(dpy);
        SyncHandle();
        return False;
    }
    monitor->nhsync = rep.nhsync;
    monitor->nvsync = rep.nvsync;
#if 0
    monitor->bandwidth = (float) rep.bandwidth / 1e6;
#endif
    if (rep.vendorLength) {
        if (!(monitor->vendor = (char *) Xcalloc(rep.vendorLength + 1, 1))) {
            _XEatData(dpy, (rep.nhsync + rep.nvsync) * 4 +
                      ((rep.vendorLength + 3) & ~3) +
                      ((rep.modelLength + 3) & ~3));
            UnlockDisplay(dpy);
            SyncHandle();
            return False;
        }
    } else {
        monitor->vendor = NULL;
    }
    if (rep.modelLength) {
        if (!(monitor->model = Xcalloc(rep.modelLength + 1, 1))) {
            _XEatData(dpy, (rep.nhsync + rep.nvsync) * 4 +
                      ((rep.vendorLength + 3) & ~3) +
                      ((rep.modelLength + 3) & ~3));
            if (monitor->vendor)
                Xfree(monitor->vendor);
            UnlockDisplay(dpy);
            SyncHandle();
            return False;
        }
    } else {
        monitor->model = NULL;
    }
    if (!
        (monitor->hsync =
         Xcalloc(rep.nhsync, sizeof(SDL_NAME(XF86VidModeSyncRange))))) {
        _XEatData(dpy, (rep.nhsync + rep.nvsync) * 4 +
                  ((rep.vendorLength + 3) & ~3) +
                  ((rep.modelLength + 3) & ~3));

        if (monitor->vendor)
            Xfree(monitor->vendor);
        if (monitor->model)
            Xfree(monitor->model);
        UnlockDisplay(dpy);
        SyncHandle();
        return False;
    }
    if (!
        (monitor->vsync =
         Xcalloc(rep.nvsync, sizeof(SDL_NAME(XF86VidModeSyncRange))))) {
        _XEatData(dpy, (rep.nhsync + rep.nvsync) * 4 +
                  ((rep.vendorLength + 3) & ~3) +
                  ((rep.modelLength + 3) & ~3));
        if (monitor->vendor)
            Xfree(monitor->vendor);
        if (monitor->model)
            Xfree(monitor->model);
        Xfree(monitor->hsync);
        UnlockDisplay(dpy);
        SyncHandle();
        return False;
    }
    for (i = 0; i < rep.nhsync; i++) {
        _XRead(dpy, (char *) &syncrange, 4);
        monitor->hsync[i].lo = (float) (syncrange & 0xFFFF) / 100.0;
        monitor->hsync[i].hi = (float) (syncrange >> 16) / 100.0;
    }
    for (i = 0; i < rep.nvsync; i++) {
        _XRead(dpy, (char *) &syncrange, 4);
        monitor->vsync[i].lo = (float) (syncrange & 0xFFFF) / 100.0;
        monitor->vsync[i].hi = (float) (syncrange >> 16) / 100.0;
    }
    if (rep.vendorLength)
        _XReadPad(dpy, monitor->vendor, rep.vendorLength);
    else
        monitor->vendor = "";
    if (rep.modelLength)
        _XReadPad(dpy, monitor->model, rep.modelLength);
    else
        monitor->model = "";

    UnlockDisplay(dpy);
    SyncHandle();
    return True;
}

Bool SDL_NAME(XF86VidModeGetViewPort) (dpy, screen, x, y)
     Display *
         dpy;
     int
         screen;
     int *
     x, *
         y;
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86VidModeGetViewPortReply rep;
    xXF86VidModeGetViewPortReq *req;
    int majorVersion, minorVersion;
    Bool protocolBug = False;

    XF86VidModeCheckExtension(dpy, info, False);

    /*
     * Note: There was a bug in the protocol implementation in versions
     * 0.x with x < 8 (no reply was sent, so the client would hang)
     * Check the server's version, and don't wait for a reply with older
     * versions.
     */

    SDL_NAME(XF86VidModeQueryVersion) (dpy, &majorVersion, &minorVersion);
    if (majorVersion == 0 && minorVersion < 8) {
        protocolBug = True;
#ifdef DEBUG
        fprintf(stderr, "XF86VidModeGetViewPort: Warning: Xserver is"
                "running an old version (%d.%d)\n", majorVersion,
                minorVersion);
#endif
    }
    LockDisplay(dpy);
    GetReq(XF86VidModeGetViewPort, req);
    req->reqType = info->codes->major_opcode;
    req->xf86vidmodeReqType = X_XF86VidModeGetViewPort;
    req->screen = screen;
    if (protocolBug) {
        *x = 0;
        *y = 0;
    } else {
        if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
            UnlockDisplay(dpy);
            SyncHandle();
            return False;
        }
        *x = rep.x;
        *y = rep.y;
    }

    UnlockDisplay(dpy);
    SyncHandle();
    return True;
}

Bool SDL_NAME(XF86VidModeSetViewPort) (dpy, screen, x, y)
     Display *
         dpy;
     int
         screen;
     int
         x,
         y;
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86VidModeSetViewPortReq *req;

    XF86VidModeCheckExtension(dpy, info, False);

    LockDisplay(dpy);
    GetReq(XF86VidModeSetViewPort, req);
    req->reqType = info->codes->major_opcode;
    req->xf86vidmodeReqType = X_XF86VidModeSetViewPort;
    req->screen = screen;
    req->x = x;
    req->y = y;

    UnlockDisplay(dpy);
    SyncHandle();
    return True;
}

Bool
SDL_NAME(XF86VidModeGetDotClocks) (dpy, screen,
                                   flagsPtr, numclocksPtr, maxclocksPtr,
                                   clocksPtr)
     Display *dpy;
     int screen;
     int *flagsPtr, *numclocksPtr, *maxclocksPtr, *clocksPtr[];
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86VidModeGetDotClocksReply rep;
    xXF86VidModeGetDotClocksReq *req;
    int i, *dotclocks;
    CARD32 dotclk;

    XF86VidModeCheckExtension(dpy, info, False);

    LockDisplay(dpy);
    GetReq(XF86VidModeGetDotClocks, req);
    req->reqType = info->codes->major_opcode;
    req->xf86vidmodeReqType = X_XF86VidModeGetDotClocks;
    req->screen = screen;
    if (!_XReply(dpy, (xReply *) & rep,
                 (SIZEOF(xXF86VidModeGetDotClocksReply) -
                  SIZEOF(xReply)) >> 2, xFalse)) {
        UnlockDisplay(dpy);
        SyncHandle();
        return False;
    }
    *numclocksPtr = rep.clocks;
    *maxclocksPtr = rep.maxclocks;
    *flagsPtr = rep.flags;

    if (!(dotclocks = (int *) Xcalloc(rep.clocks, sizeof(int)))) {
        _XEatData(dpy, (rep.clocks) * 4);
        Xfree(dotclocks);
        UnlockDisplay(dpy);
        SyncHandle();
        return False;
    }

    for (i = 0; i < rep.clocks; i++) {
        _XRead(dpy, (char *) &dotclk, 4);
        dotclocks[i] = dotclk;
    }
    *clocksPtr = dotclocks;
    UnlockDisplay(dpy);
    SyncHandle();
    return True;
}

Bool
SDL_NAME(XF86VidModeSetGammaRamp) (Display * dpy,
                                   int screen,
                                   int size,
                                   unsigned short *red,
                                   unsigned short *green,
                                   unsigned short *blue)
{
    int length = (size + 1) & ~1;
    XExtDisplayInfo *info = find_display(dpy);
    xXF86VidModeSetGammaRampReq *req;

    XF86VidModeCheckExtension(dpy, info, False);
    LockDisplay(dpy);
    GetReq(XF86VidModeSetGammaRamp, req);
    req->reqType = info->codes->major_opcode;
    req->xf86vidmodeReqType = X_XF86VidModeSetGammaRamp;
    req->screen = screen;
    req->length += (length >> 1) * 3;
    req->size = size;
    _XSend(dpy, (char *) red, size * 2);
    _XSend(dpy, (char *) green, size * 2);
    _XSend(dpy, (char *) blue, size * 2);
    UnlockDisplay(dpy);
    SyncHandle();
    return True;
}


Bool
SDL_NAME(XF86VidModeGetGammaRamp) (Display * dpy,
                                   int screen,
                                   int size,
                                   unsigned short *red,
                                   unsigned short *green,
                                   unsigned short *blue)
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86VidModeGetGammaRampReq *req;
    xXF86VidModeGetGammaRampReply rep;

    XF86VidModeCheckExtension(dpy, info, False);

    LockDisplay(dpy);
    GetReq(XF86VidModeGetGammaRamp, req);
    req->reqType = info->codes->major_opcode;
    req->xf86vidmodeReqType = X_XF86VidModeGetGammaRamp;
    req->screen = screen;
    req->size = size;
    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
        UnlockDisplay(dpy);
        SyncHandle();
        return False;
    }
    if (rep.size) {
        _XRead(dpy, (char *) red, rep.size << 1);
        _XRead(dpy, (char *) green, rep.size << 1);
        _XRead(dpy, (char *) blue, rep.size << 1);
    }

    UnlockDisplay(dpy);
    SyncHandle();
    return True;
}

Bool SDL_NAME(XF86VidModeGetGammaRampSize) (Display * dpy,
                                            int screen, int *size)
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86VidModeGetGammaRampSizeReq *req;
    xXF86VidModeGetGammaRampSizeReply rep;

    *size = 0;

    XF86VidModeCheckExtension(dpy, info, False);

    LockDisplay(dpy);
    GetReq(XF86VidModeGetGammaRampSize, req);
    req->reqType = info->codes->major_opcode;
    req->xf86vidmodeReqType = X_XF86VidModeGetGammaRampSize;
    req->screen = screen;
    if (!_XReply(dpy, (xReply *) & rep, 0, xTrue)) {
        UnlockDisplay(dpy);
        SyncHandle();
        return False;
    }
    *size = rep.size;
    UnlockDisplay(dpy);
    SyncHandle();
    return True;
}

/* vi: set ts=4 sw=4 expandtab: */