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* Copyright 2012 Free Software Foundation, Inc.
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* This file is part of GNU Radio
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* GNU Radio is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* GNU Radio is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with GNU Radio; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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#include <gr_multiply_cc.h>
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#include <gr_io_signature.h>
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#include <volk/volk.h>
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gr_make_multiply_cc (size_t vlen)
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return gnuradio::get_initial_sptr(new gr_multiply_cc (vlen));
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gr_multiply_cc::gr_multiply_cc (size_t vlen)
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: gr_sync_block ("gr_multiply_cc",
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gr_make_io_signature (1, -1, sizeof (gr_complex)*vlen),
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gr_make_io_signature (1, 1, sizeof (gr_complex)*vlen)),
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const int alignment_multiple =
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volk_get_alignment() / sizeof(gr_complex);
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set_alignment(alignment_multiple);
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gr_multiply_cc::work (int noutput_items,
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gr_vector_const_void_star &input_items,
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gr_vector_void_star &output_items)
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gr_complex *out = (gr_complex *) output_items[0];
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int noi = d_vlen*noutput_items;
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memcpy(out, input_items[0], noi*sizeof(gr_complex));
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for(size_t i = 1; i < input_items.size(); i++)
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volk_32fc_x2_multiply_32fc_u(out, out, (gr_complex*)input_items[i], noi);
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for(size_t i = 1; i < input_items.size(); i++)
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volk_32fc_x2_multiply_32fc_a(out, out, (gr_complex*)input_items[i], noi);