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/* -*- c++ -*- */
/*
* Copyright 2007,2013,2018 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "argmax_impl.h"
#include <gnuradio/io_signature.h>
namespace gr {
namespace blocks {
template <class T>
typename argmax<T>::sptr argmax<T>::make(size_t vlen)
{
return gnuradio::get_initial_sptr(new argmax_impl<T>(vlen));
}
template <class T>
argmax_impl<T>::argmax_impl(size_t vlen)
: sync_block("argmax",
io_signature::make(1, -1, vlen * sizeof(T)),
io_signature::make(2, 2, sizeof(std::int16_t))),
d_vlen(vlen)
{
}
template <class T>
argmax_impl<T>::~argmax_impl()
{
}
template <class T>
int argmax_impl<T>::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
int ninputs = input_items.size();
std::int16_t* x_optr = (std::int16_t*)output_items[0];
std::int16_t* y_optr = (std::int16_t*)output_items[1];
for (int i = 0; i < noutput_items; i++) {
T max = ((T*)input_items[0])[i * d_vlen];
int x = 0;
int y = 0;
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];
x = j;
y = k;
}
}
}
*x_optr++ = (std::int16_t)x;
*y_optr++ = (std::int16_t)y;
}
return noutput_items;
}
template class argmax<float>;
template class argmax<std::int32_t>;
template class argmax<std::int16_t>;
} /* namespace blocks */
} /* namespace gr */
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