/* -*- c++ -*- */
/*
 * Copyright 2012 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 "interleaved_short_array_to_complex.h"
#include "interleaved_short_to_complex_impl.h"
#include <gnuradio/io_signature.h>

namespace gr {
namespace blocks {

interleaved_short_to_complex::sptr interleaved_short_to_complex::make(bool vector_input,
                                                                      bool swap)
{
    return gnuradio::get_initial_sptr(
        new interleaved_short_to_complex_impl(vector_input, swap));
}

interleaved_short_to_complex_impl::interleaved_short_to_complex_impl(bool vector_input,
                                                                     bool swap)
    : sync_decimator("interleaved_short_to_complex",
                     gr::io_signature::make(1, 1, (vector_input ? 2 : 1) * sizeof(short)),
                     gr::io_signature::make(1, 1, sizeof(gr_complex)),
                     vector_input ? 1 : 2),
      d_swap(swap)
{
}

void interleaved_short_to_complex_impl::set_swap(bool swap) { d_swap = swap; }

int interleaved_short_to_complex_impl::work(int noutput_items,
                                            gr_vector_const_void_star& input_items,
                                            gr_vector_void_star& output_items)
{
    const short* in = (const short*)input_items[0];
    gr_complex* out = (gr_complex*)output_items[0];

    interleaved_short_array_to_complex(in, out, 2 * noutput_items);

    if (d_swap) {
        float* p = (float*)output_items[0];
        for (int i = 0; i < noutput_items; ++i) {
            float f = p[2 * i + 1];
            p[2 * i + 1] = p[2 * i + 0];
            p[2 * i + 0] = f;
        }
    }

    return noutput_items;
}

} /* namespace blocks */
} /* namespace gr */
