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/* -*- c++ -*- */
/*
* Copyright 2012 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_conjugate_cc_impl.h"
#include <gnuradio/io_signature.h>
#include <volk/volk.h>
namespace gr {
namespace blocks {
multiply_conjugate_cc::sptr multiply_conjugate_cc::make(size_t vlen)
{
return gnuradio::get_initial_sptr(new multiply_conjugate_cc_impl(vlen));
}
multiply_conjugate_cc_impl::multiply_conjugate_cc_impl(size_t vlen)
: sync_block("multiply_conjugate_cc",
io_signature::make(2, 2, sizeof(gr_complex) * vlen),
io_signature::make(1, 1, sizeof(gr_complex) * vlen)),
d_vlen(vlen)
{
const int alignment_multiple = volk_get_alignment() / sizeof(gr_complex);
set_alignment(std::max(1, alignment_multiple));
}
int multiply_conjugate_cc_impl::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
gr_complex* in0 = (gr_complex*)input_items[0];
gr_complex* in1 = (gr_complex*)input_items[1];
gr_complex* out = (gr_complex*)output_items[0];
int noi = d_vlen * noutput_items;
volk_32fc_x2_multiply_conjugate_32fc(out, in0, in1, noi);
return noutput_items;
}
} /* namespace blocks */
} /* namespace gr */
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