/*
 * -- $Header: /cec/src/nestor/servers/R3/shXlib/XStColors.c,v 1.1.1.1
 * 90/04/23 10:07:31 spanachi Exp $
 */

#include "copyright.h"

/* $XConsortium: XStColors.c,v 11.12 88/09/06 16:10:35 jim Exp $ */
/* Copyright    Massachusetts Institute of Technology    1986	 */

#include "Xlibint.h"

XStoreColors (dpy, cmap, defs, ncolors)
  register Display *dpy;
  Colormap cmap;
  XColor defs[];
  int ncolors;
{
  register int i, available, begin, end;
  xColorItem citem;
  register xStoreColorsReq *req;

  /*
   * -- Normally , we would not alter this routine, BUT it's the -- only one
   * that may let the display buffer start with a -- PARTIAL REQUEST !!! --
   * We do not allow such nasty things (we would have to store more --
   * information; remember: we must map the pixels ! )
   */

  LockDisplay (dpy);
  begin = 0;
  end = ncolors;
  while (begin < ncolors) {
    GetReq (StoreColors, req);
    req->cmap = cmap;
    available = dpy->bufmax - dpy->bufptr;
    if (((end - begin) * SIZEOF (xColorItem)) > available)
      end = begin + available / SIZEOF (xColorItem);
    else
      end = ncolors;

    /* assume size is 4*n */
    req->length += ((end - begin) * SIZEOF (xColorItem)) >> 2;

    for (i = begin; i < end; i++) {
      citem.pixel = defs[i].pixel;
      citem.red = defs[i].red;
      citem.green = defs[i].green;
      citem.blue = defs[i].blue;
      citem.flags = defs[i].flags;

      /*
       * note that xColorItem doesn't contain all 16-bit quantities, so we
       * can't use Data16
       */
      Data (dpy, (char *) &citem, (long) SIZEOF (xColorItem));
      /* assume size is 4*n */
    }
    begin = end;
  }
  UnlockDisplay (dpy);
  SyncHandle ();
}