IABSD.fr/xenocara/lib/libXext/src/XLbx.c

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• Author : matthieu
  Date : 2010-05-10 20:06:53
  Hash : 0c4bbe43
  Message : Update to libXext 1.1.1. Tested on a ports bulk build by naddy@.

• lib/libXext/src/XLbx.c

• /*
   * $Xorg: XLbx.c,v 1.3 2000/08/17 19:45:51 cpqbld Exp $
   *
   * Copyright 1992 Network Computing Devices
   *
   * 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 NCD. not be used in advertising or
   * publicity pertaining to distribution of the software without specific,
   * written prior permission.  NCD. makes no representations about the
   * suitability of this software for any purpose.  It is provided "as is"
   * without express or implied warranty.
   *
   * NCD. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL NCD.
   * 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.
   *
   * Author:  Keith Packard, Network Computing Devices
   */
  /* $XFree86: xc/lib/Xext/XLbx.c,v 1.4 2002/10/16 00:37:27 dawes Exp $ */
  
  #define NEED_EVENTS
  #define NEED_REPLIES
  #ifdef HAVE_CONFIG_H
  #include <config.h>
  #endif
  #include <stdio.h>
  #include <X11/Xlibint.h>
  #include <X11/extensions/XLbx.h>
  #include <X11/extensions/lbxproto.h>
  #include <X11/extensions/Xext.h>
  #include <X11/extensions/extutil.h>
  
  static XExtensionInfo _lbx_info_data;
  static XExtensionInfo *lbx_info = &_lbx_info_data;
  static /* const */ char *lbx_extension_name = LBXNAME;
  
  #define LbxCheckExtension(dpy,i,val) \
    XextCheckExtension (dpy, i, lbx_extension_name, val)
  
  static int close_display(Display *dpy, XExtCodes *codes);
  static char *error_string(Display *dpy, int code, XExtCodes *codes,
  			  char *buf, int n);
  static /* const */ XExtensionHooks lbx_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 */
      error_string,			/* error_string */
  };
  
  static /* const */ char *lbx_error_list[] = {
      "BadLbxClient",			/* BadLbxClient */
  };
  
  static XEXT_GENERATE_FIND_DISPLAY (find_display, lbx_info, lbx_extension_name, 
  				   &lbx_extension_hooks, LbxNumberEvents, NULL)
  
  static XEXT_GENERATE_CLOSE_DISPLAY (close_display, lbx_info)
  
  static XEXT_GENERATE_ERROR_STRING (error_string, lbx_extension_name,
  				   LbxNumberErrors, lbx_error_list)
  
  
  Bool XLbxQueryExtension (
      Display *dpy,
      int *requestp, int *event_basep, int *error_basep)
  {
      XExtDisplayInfo *info = find_display (dpy);
  
      if (XextHasExtension(info)) {
  	*requestp = info->codes->major_opcode;
  	*event_basep = info->codes->first_event;
  	*error_basep = info->codes->first_error;
  	return True;
      } else {
  	return False;
      }
  }
  
  
  int XLbxGetEventBase(Display *dpy)
  {
      XExtDisplayInfo *info = find_display (dpy);
  
      if (XextHasExtension(info)) {
  	return info->codes->first_event;
      } else {
  	return -1;
      }
  }
  
  
  Bool XLbxQueryVersion(Display *dpy, int *majorVersion, int *minorVersion)
  {
      XExtDisplayInfo *info = find_display (dpy);
      xLbxQueryVersionReply rep;
      register xLbxQueryVersionReq *req;
  
      LbxCheckExtension (dpy, info, False);
  
      LockDisplay(dpy);
      GetReq(LbxQueryVersion, req);
      req->reqType = info->codes->major_opcode;
      req->lbxReqType = X_LbxQueryVersion;
      if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
  	UnlockDisplay(dpy);
  	SyncHandle();
  	return False;
      }
      *majorVersion = rep.majorVersion;
      *minorVersion = rep.minorVersion;
      UnlockDisplay(dpy);
      SyncHandle();
      return True;
  }
  
  /* all other requests will run after Xlib has lost the wire ... */