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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 "pccc_encoder_impl.h"
#include <gnuradio/io_signature.h>
#include <iostream>
namespace gr {
namespace trellis {
template <class IN_T, class OUT_T>
typename pccc_encoder<IN_T,OUT_T>::sptr
pccc_encoder<IN_T,OUT_T>::make(const fsm &FSM1, int ST1,
const fsm &FSM2, int ST2,
const interleaver &INTERLEAVER,
int blocklength)
{
return gnuradio::get_initial_sptr
(new pccc_encoder_impl<IN_T,OUT_T>(FSM1, ST1, FSM2, ST2, INTERLEAVER, blocklength));
}
template <class IN_T, class OUT_T>
pccc_encoder_impl<IN_T,OUT_T>::pccc_encoder_impl(const fsm &FSM1, int ST1,
const fsm &FSM2, int ST2,
const interleaver &INTERLEAVER,
int blocklength)
: sync_block("pccc_encoder<IN_T,OUT_T>",
io_signature::make(1, 1, sizeof(IN_T)),
io_signature::make(1, 1, sizeof(OUT_T))),
d_FSM1(FSM1), d_ST1(ST1),
d_FSM2(FSM2), d_ST2(ST2),
d_INTERLEAVER(INTERLEAVER),
d_blocklength(blocklength)
{
assert(d_FSM1.I() == d_FSM2.I());
this->set_output_multiple(d_blocklength);
d_buffer.resize(d_blocklength);
}
template <class IN_T, class OUT_T>
pccc_encoder_impl<IN_T,OUT_T>::~pccc_encoder_impl()
{
}
template <class IN_T, class OUT_T>
int
pccc_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 ST1_tmp = d_ST1;
int ST2_tmp = d_ST2;
for(int i = 0; i < d_blocklength; i++) {
int k = d_INTERLEAVER.INTER()[i];
int o1 = d_FSM1.OS()[ST1_tmp*d_FSM1.I()+in[i]];
ST1_tmp = (int) d_FSM1.NS()[ST1_tmp*d_FSM1.I()+in[i]];
int o2 = d_FSM2.OS()[ST2_tmp*d_FSM2.I()+in[k]];
ST2_tmp = (int) d_FSM2.NS()[ST2_tmp*d_FSM2.I()+in[k]];
out[i] = (OUT_T) (o1*d_FSM2.O() + o2);
}
}
return noutput_items;
}
template class pccc_encoder<std::uint8_t, std::uint8_t>;
template class pccc_encoder<std::uint8_t, std::int16_t>;
template class pccc_encoder<std::uint8_t, std::int32_t>;
template class pccc_encoder<std::int16_t, std::int16_t>;
template class pccc_encoder<std::int16_t, std::int32_t>;
template class pccc_encoder<std::int32_t, std::int32_t>;
} /* namespace trellis */
} /* namespace gr */
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