/*
 *
 * Copyright © 2002 Keith Packard, member of The XFree86 Project, Inc.
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of Keith Packard not be used in
 * advertising or publicity pertaining to distribution of the software without
 * specific, written prior permission.  Keith Packard makes no
 * representations about the suitability of this software for any purpose.  It
 * is provided "as is" without express or implied warranty.
 *
 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _XFIXESINT_H_
#define _XFIXESINT_H_

#include <stdio.h>
#include <X11/Xlib.h>
#include <X11/Xlibint.h>
#include <X11/Xutil.h>
#include "Xfixes.h"
#include <X11/extensions/xfixesproto.h>

typedef struct _XFixesExtDisplayInfo {
    struct _XFixesExtDisplayInfo  *next;    /* keep a linked list */
    Display                 *display;	    /* which display this is */
    XExtCodes               *codes;	    /* the extension protocol codes */
    int			    major_version;  /* -1 means we don't know */
    int			    minor_version;  /* -1 means we don't know */
} XFixesExtDisplayInfo;

/* replaces XExtensionInfo */
typedef struct _XFixesExtInfo {
    XFixesExtDisplayInfo    *head;          /* start of the list */
    XFixesExtDisplayInfo    *cur;           /* most recently used */
    int                     ndisplays;      /* number of displays */
} XFixesExtInfo;

extern XFixesExtInfo XFixesExtensionInfo;
extern char XFixesExtensionName[];

XFixesExtDisplayInfo *
XFixesFindDisplay (Display *dpy);

#define XFixesHasExtension(i) ((i) && ((i)->codes))

#define XFixesCheckExtension(dpy,i,val) \
  if (!XFixesHasExtension(i)) { return val; }

#define XFixesSimpleCheckExtension(dpy,i) \
  if (!XFixesHasExtension(i)) { return; }

#ifndef HAVE__XEATDATAWORDS
#include <X11/Xmd.h>  /* for LONG64 on 64-bit platforms */
#include <limits.h>

static inline void _XEatDataWords(Display *dpy, unsigned long n)
{
# ifndef LONG64
    if (n >= (ULONG_MAX >> 2))
        _XIOError(dpy);
# endif
    _XEatData (dpy, n << 2);
}
#endif

#endif /* _XFIXESINT_H_ */