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/* -*- c++ -*- */
/*
* Copyright 2004,2009,2010,2012,2018 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 "multiply_const_impl.h"
#include <gnuradio/io_signature.h>
#include <volk/volk.h>
namespace gr {
namespace blocks {
template <class T>
typename multiply_const<T>::sptr multiply_const<T>::make(T k, size_t vlen)
{
return gnuradio::get_initial_sptr(new multiply_const_impl<T>(k, vlen));
}
template <>
multiply_const_impl<float>::multiply_const_impl(float k, size_t vlen)
: sync_block("multiply_const_ff",
io_signature::make(1, 1, sizeof(float) * vlen),
io_signature::make(1, 1, sizeof(float) * vlen)),
d_k(k),
d_vlen(vlen)
{
const int alignment_multiple = volk_get_alignment() / sizeof(float);
set_alignment(std::max(1, alignment_multiple));
}
template <>
int multiply_const_impl<float>::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
const float* in = (const float*)input_items[0];
float* out = (float*)output_items[0];
int noi = noutput_items * d_vlen;
volk_32f_s32f_multiply_32f(out, in, d_k, noi);
return noutput_items;
}
template <>
multiply_const_impl<gr_complex>::multiply_const_impl(gr_complex k, size_t vlen)
: sync_block("multiply_const_cc",
io_signature::make(1, 1, sizeof(gr_complex) * vlen),
io_signature::make(1, 1, sizeof(gr_complex) * vlen)),
d_k(k),
d_vlen(vlen)
{
const int alignment_multiple = volk_get_alignment() / sizeof(gr_complex);
set_alignment(std::max(1, alignment_multiple));
}
template <>
int multiply_const_impl<gr_complex>::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
const gr_complex* in = (const gr_complex*)input_items[0];
gr_complex* out = (gr_complex*)output_items[0];
int noi = noutput_items * d_vlen;
volk_32fc_s32fc_multiply_32fc(out, in, d_k, noi);
return noutput_items;
}
template <class T>
multiply_const_impl<T>::multiply_const_impl(T k, size_t vlen)
: sync_block("multiply_const",
io_signature::make(1, 1, sizeof(T) * vlen),
io_signature::make(1, 1, sizeof(T) * vlen)),
d_k(k),
d_vlen(vlen)
{
}
template <class T>
int multiply_const_impl<T>::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
T* iptr = (T*)input_items[0];
T* optr = (T*)output_items[0];
int size = noutput_items * d_vlen;
while (size >= 8) {
*optr++ = *iptr++ * d_k;
*optr++ = *iptr++ * d_k;
*optr++ = *iptr++ * d_k;
*optr++ = *iptr++ * d_k;
*optr++ = *iptr++ * d_k;
*optr++ = *iptr++ * d_k;
*optr++ = *iptr++ * d_k;
*optr++ = *iptr++ * d_k;
size -= 8;
}
while (size-- > 0)
*optr++ = *iptr++ * d_k;
return noutput_items;
}
template class multiply_const<std::int16_t>;
template class multiply_const<std::int32_t>;
template class multiply_const<float>;
template class multiply_const<gr_complex>;
} /* namespace blocks */
} /* namespace gr */
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