/*
 * -- $Header: /cec/src/nestor/servers/R3/shXlib/XGetPntMap.c,v 1.1.1.1
 * 90/04/23 09:59:20 spanachi Exp $
 */
#include "copyright.h"

/* $XConsortium: XGetPntMap.c,v 1.9 88/09/06 16:10:20 jim Exp $ */
/* Copyright    Massachusetts Institute of Technology    1986	 */
/* -- MULTIPLEX Extension -- */

#define NEED_REPLIES
#include "Xlibint.h"

/* -- additional includes -- */
#include "utils.h"

#ifdef MIN			/* some systems define this in <sys/param.h> */
#undef MIN
#endif
#define MIN(a, b) ((a) < (b) ? (a) : (b))

int
XGetPointerMapping (dpy, map, nmaps)
  register Display *dpy;
  unsigned char map[];
  int nmaps;

{
  unsigned char mapping[256];	/* known fixed size */
  long nbytes;
  xGetPointerMappingReply rep;
  register xReq *req;


  /* -- flush default dpy's queue to keep buffers aligned -- */
  XmuXFlushDefault (dpy);
  /* -- switch to the chalk holder display -- */
  dpy = XmuXChalkDisplay (dpy);

  LockDisplay (dpy);
  GetEmptyReq (GetPointerMapping, req);
  (void) _XReply (dpy, (xReply *) & rep, 0, xFalse);

  nbytes = (long) rep.length << 2;
  _XRead (dpy, (char *) mapping, nbytes);
  /* don't return more data than the user asked for. */
  if (rep.nElts) {
    bcopy ((char *) mapping, (char *) map,
	   MIN ((int) rep.nElts, nmaps));
  }
  UnlockDisplay (dpy);
  SyncHandle ();
  return ((int) rep.nElts);
}

KeySym *
XGetKeyboardMapping (dpy, first_keycode, count, keysyms_per_keycode)
  register Display *dpy;
  KeyCode first_keycode;
  int count;
  int *keysyms_per_keycode;	/* RETURN */
{
  long nbytes;
  unsigned long nkeysyms;
  register KeySym *mapping = NULL;
  xGetKeyboardMappingReply rep;
  register xGetKeyboardMappingReq *req;

  LockDisplay (dpy);
  GetReq (GetKeyboardMapping, req);
  req->firstKeyCode = first_keycode;
  req->count = count;
  (void) _XReply (dpy, (xReply *) & rep, 0, xFalse);

  nkeysyms = (unsigned long) rep.length;
  if (nkeysyms > 0) {
    *keysyms_per_keycode = rep.keySymsPerKeyCode;
    nbytes = nkeysyms * sizeof (KeySym);
    mapping = (KeySym *) Xmalloc ((unsigned) nbytes);
    nbytes = nkeysyms * 4;
    _XRead32 (dpy, (char *) mapping, nbytes);
  }
  UnlockDisplay (dpy);
  SyncHandle ();
  return (mapping);
}