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/* -*- c++ -*- */
/*
* Copyright 2004,2009,2010,2012,2018 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 "add_blk_impl.h"
#include <gnuradio/io_signature.h>
#include <volk/volk.h>
namespace gr {
namespace blocks {
namespace {
template <typename T>
inline void volk_add(T* out, const T* add, unsigned int num)
{
for (unsigned int elem = 0; elem < num; elem++) {
out[elem] += add[elem];
}
}
template <>
inline void volk_add<float>(float* out, const float* add, unsigned int num)
{
volk_32f_x2_add_32f(out, out, add, num);
}
template <>
inline void volk_add<gr_complex>(gr_complex* out, const gr_complex* add, unsigned int num)
{
volk_32fc_x2_add_32fc(out, out, add, num);
}
} // namespace
template <class T>
typename add_blk<T>::sptr add_blk<T>::make(size_t vlen)
{
return gnuradio::make_block_sptr<add_blk_impl<T>>(vlen);
}
template <>
add_blk_impl<float>::add_blk_impl(size_t vlen)
: sync_block("add_ff",
io_signature::make(1, -1, sizeof(float) * vlen),
io_signature::make(1, 1, sizeof(float) * vlen)),
d_vlen(vlen)
{
set_alignment(std::max(1, int(volk_get_alignment() / sizeof(float))));
}
template <>
add_blk_impl<gr_complex>::add_blk_impl(size_t vlen)
: sync_block("add_cc",
io_signature::make(1, -1, sizeof(gr_complex) * vlen),
io_signature::make(1, 1, sizeof(gr_complex) * vlen)),
d_vlen(vlen)
{
set_alignment(std::max(1, int(volk_get_alignment() / sizeof(gr_complex))));
}
template <class T>
add_blk_impl<T>::add_blk_impl(size_t vlen)
: sync_block("add_blk",
io_signature::make(1, -1, sizeof(T) * vlen),
io_signature::make(1, 1, sizeof(T) * vlen)),
d_vlen(vlen)
{
}
template <class T>
int add_blk_impl<T>::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
T* out = (T*)output_items[0];
int noi = d_vlen * noutput_items;
memcpy(out, input_items[0], noi * sizeof(T));
for (size_t i = 1; i < input_items.size(); i++) {
volk_add(out, (T*)input_items[i], noi);
}
return noutput_items;
}
template class add_blk<std::int16_t>;
template class add_blk<std::int32_t>;
template class add_blk<gr_complex>;
template class add_blk<float>;
} /* namespace blocks */
} /* namespace gr */
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