*/
  public void copy_convolution_filter1d (int target, int internal_format, 
    int x, int y, int width) {

    RequestOutputStream o = display.out;
    synchronized (o) {
      begin_render_request (o, 4107, 24);
      o.write_int32 (target);
      o.write_int32 (internal_format);
      o.write_int32 (x);
      o.write_int32 (y);
      o.write_int32 (width);
    }
  }