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/* -*- c++ -*- */
/*
* Copyright 2013 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 "constellation_soft_decoder_cf_impl.h"
#include <gnuradio/io_signature.h>
namespace gr {
namespace digital {
constellation_soft_decoder_cf::sptr
constellation_soft_decoder_cf::make(constellation_sptr constellation)
{
return gnuradio::get_initial_sptr
(new constellation_soft_decoder_cf_impl(constellation));
}
constellation_soft_decoder_cf_impl::
constellation_soft_decoder_cf_impl(constellation_sptr constellation)
: sync_interpolator("constellation_soft_decoder_cf",
io_signature::make(1, 1, sizeof(gr_complex)),
io_signature::make(1, 1, sizeof(float)),
constellation->bits_per_symbol()),
d_constellation(constellation),
d_dim(constellation->dimensionality()),
d_bps(constellation->bits_per_symbol())
{
}
constellation_soft_decoder_cf_impl::~constellation_soft_decoder_cf_impl()
{
}
int
constellation_soft_decoder_cf_impl::work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
gr_complex const *in = (const gr_complex*)input_items[0];
float *out = (float*)output_items[0];
std::vector<float> bits;
// FIXME: figure out how to manage d_dim
for(int i = 0; i < noutput_items/d_bps; i++) {
bits = d_constellation->soft_decision_maker(in[i]);
for(size_t j = 0; j < bits.size(); j++) {
out[d_bps*i+j] = bits[j];
}
}
return noutput_items;
}
} /* namespace digital */
} /* namespace gr */
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