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/* -*- c++ -*- */
/*
* Copyright 2014,2015,2018 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 "max_blk_impl.h"
#include <gnuradio/io_signature.h>
namespace gr {
namespace blocks {
template <class T>
typename max_blk<T>::sptr max_blk<T>::make(size_t vlen, size_t vlen_out)
{
return gnuradio::get_initial_sptr(new max_blk_impl<T>(vlen, vlen_out));
}
template <class T>
max_blk_impl<T>::max_blk_impl(size_t vlen, size_t vlen_out)
: sync_block("max_blk",
io_signature::make(1, -1, vlen * sizeof(T)),
io_signature::make(1, 1, vlen_out * sizeof(T))),
d_vlen(vlen),
d_vlen_out(vlen_out)
{
assert((vlen_out == vlen) || (vlen_out == 1));
}
template <class T>
max_blk_impl<T>::~max_blk_impl()
{
}
template <class T>
int max_blk_impl<T>::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
T* optr = (T*)output_items[0];
int ninputs = input_items.size();
if (d_vlen_out == 1)
for (int i = 0; i < noutput_items; i++) {
T max = ((T*)input_items[0])[i * d_vlen];
for (int j = 0; j < (int)d_vlen; j++) {
for (int k = 0; k < ninputs; k++) {
if (((T*)input_items[k])[i * d_vlen + j] > max) {
max = ((T*)input_items[k])[i * d_vlen + j];
}
}
}
*optr++ = (T)max;
}
else // vector mode output
for (size_t i = 0; i < (size_t)noutput_items * d_vlen_out; i++) {
T max = ((T*)input_items[0])[i];
for (int k = 1; k < ninputs; k++) {
if (((T*)input_items[k])[i] > max) {
max = ((T*)input_items[k])[i];
}
}
*optr++ = (T)max;
}
return noutput_items;
}
template class max_blk<std::int16_t>;
template class max_blk<std::int32_t>;
template class max_blk<float>;
} /* namespace blocks */
} /* namespace gr */
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