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

/*

 * Copyright 2006 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_binary_slicer_fb.h>

#include <gr_io_signature.h>

#include <stdexcept>

gr_binary_slicer_fb_sptr

gr_make_binary_slicer_fb ()

{

  return gr_binary_slicer_fb_sptr (new gr_binary_slicer_fb ());

}

gr_binary_slicer_fb::gr_binary_slicer_fb ()

  : gr_sync_block ("binary_slicer_fb",

                   gr_make_io_signature (1, 1, sizeof (float)),

                   gr_make_io_signature (1, 1, sizeof (unsigned char)))

{

}

static inline int

slice(float x)

{

  return x < 0 ? 0 : 1;

}

int

gr_binary_slicer_fb::work (int noutput_items,

                           gr_vector_const_void_star &input_items,

                           gr_vector_void_star &output_items)

{

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

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

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

    out[i] = slice(in[i]);

  }

  return noutput_items;

}