/* -*- c++ -*- */

/*

 * Copyright 2008 Free Software Foundation, Inc.

 * 

 * This file is part of GNU Radio

 * 

 * GNU Radio is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 3, or (at your option)

 * any later version.

 * 

 * GNU Radio is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 * 

 * You should have received a copy of the GNU General Public License

 * along with GNU Radio; see the file COPYING.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street,

 * Boston, MA 02110-1301, USA.

 */

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include <gr_repeat.h>

#include <gr_io_signature.h>

#include <string.h>

gr_repeat_sptr 

gr_make_repeat(size_t itemsize, int interp)

{

  return gr_repeat_sptr(new gr_repeat(itemsize, interp));

}

gr_repeat::gr_repeat(size_t itemsize, int interp)  

  : gr_sync_interpolator("extend",

                         gr_make_io_signature(1, 1, itemsize),

                         gr_make_io_signature(1, 1, itemsize),

                         interp),

    d_interp(interp),

    d_itemsize(itemsize)

{

}

gr_repeat::~gr_repeat()

{

}

int 

gr_repeat::work(int noutput_items,

                  gr_vector_const_void_star &input_items,

                  gr_vector_void_star &output_items)

{

  const char *in = (const char *) input_items[0];

  char *out = (char *)output_items[0];

  for (int i = 0; i < noutput_items/d_interp; i++) {

    for (int j = 0; j < d_interp; j++) {

      memcpy(out, in, d_itemsize);

      out += d_itemsize;

    }

    in += d_itemsize;

  }

  return noutput_items;

}