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/* -*- c++ -*- */
/*
* Copyright 2004,2010,2012,2018 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 "sccc_encoder_impl.h"
#include <gnuradio/io_signature.h>
#include <iostream>
namespace gr {
namespace trellis {
template <class IN_T, class OUT_T>
typename sccc_encoder<IN_T,OUT_T>::sptr
sccc_encoder<IN_T,OUT_T>::make(const fsm &FSMo, int STo,
const fsm &FSMi, int STi,
const interleaver &INTERLEAVER,
int blocklength)
{
return gnuradio::get_initial_sptr
(new sccc_encoder_impl<IN_T,OUT_T>(FSMo, STo, FSMi, STi, INTERLEAVER, blocklength));
}
template <class IN_T, class OUT_T>
sccc_encoder_impl<IN_T,OUT_T>::sccc_encoder_impl(const fsm &FSMo, int STo,
const fsm &FSMi, int STi,
const interleaver &INTERLEAVER,
int blocklength)
: sync_block("sccc_encoder<IN_T,OUT_T>",
io_signature::make(1, 1, sizeof(IN_T)),
io_signature::make(1, 1, sizeof(OUT_T))),
d_FSMo(FSMo), d_STo(STo),
d_FSMi(FSMi), d_STi(STi),
d_INTERLEAVER(INTERLEAVER),
d_blocklength(blocklength)
{
this->set_output_multiple(d_blocklength);
d_buffer.resize(d_blocklength);
}
template <class IN_T, class OUT_T>
sccc_encoder_impl<IN_T,OUT_T>::~sccc_encoder_impl()
{
}
template <class IN_T, class OUT_T>
int
sccc_encoder_impl<IN_T,OUT_T>::work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
for(int b = 0; b < noutput_items/d_blocklength; b++) {
const IN_T *in = (const IN_T*)input_items[0]+b*d_blocklength;
OUT_T *out = (OUT_T*)output_items[0]+b*d_blocklength;
int STo_tmp = d_STo;
for(int i = 0; i < d_blocklength; i++) {
d_buffer[i] = d_FSMo.OS()[STo_tmp*d_FSMo.I()+in[i]];
STo_tmp = (int) d_FSMo.NS()[STo_tmp*d_FSMo.I()+in[i]];
}
int STi_tmp = d_STi;
for(int i = 0; i < d_blocklength; i++) {
int k = d_INTERLEAVER.INTER()[i];
out[i] = (OUT_T) d_FSMi.OS()[STi_tmp*d_FSMi.I()+d_buffer[k]];
STi_tmp = (int) d_FSMi.NS()[STi_tmp*d_FSMi.I()+d_buffer[k]];
}
}
return noutput_items;
}
template class sccc_encoder<std::uint8_t, std::uint8_t>;
template class sccc_encoder<std::uint8_t, std::int16_t>;
template class sccc_encoder<std::uint8_t, std::int32_t>;
template class sccc_encoder<std::int16_t, std::int16_t>;
template class sccc_encoder<std::int16_t, std::int32_t>;
template class sccc_encoder<std::int32_t, std::int32_t>;
} /* namespace trellis */
} /* namespace gr */
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