1 /* -*- c++ -*- */
2 /*
3 * Copyright 2014 Free Software Foundation, Inc.
4 *
5 * This file is part of GNU Radio
6 *
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3, or (at your option)
10 * any later version.
11 *
12 * GNU Radio is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Radio; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street,
20 * Boston, MA 02110-1301, USA.
21 */
22
23 #ifdef HAVE_CONFIG_H
24 #include "config.h"
25 #endif
26
27 #include "rotator_cc_impl.h"
28 #include <gnuradio/io_signature.h>
29
30 #include <cmath>
31
32 namespace gr {
33 namespace blocks {
34
make(double phase_inc)35 rotator_cc::sptr rotator_cc::make(double phase_inc)
36 {
37 return gnuradio::get_initial_sptr(new rotator_cc_impl(phase_inc));
38 }
39
rotator_cc_impl(double phase_inc)40 rotator_cc_impl::rotator_cc_impl(double phase_inc)
41 : sync_block("rotator_cc",
42 io_signature::make(1, 1, sizeof(gr_complex)),
43 io_signature::make(1, 1, sizeof(gr_complex)))
44 {
45 set_phase_inc(phase_inc);
46 }
47
~rotator_cc_impl()48 rotator_cc_impl::~rotator_cc_impl() {}
49
set_phase_inc(double phase_inc)50 void rotator_cc_impl::set_phase_inc(double phase_inc)
51 {
52 d_r.set_phase_incr(exp(gr_complex(0, phase_inc)));
53 }
54
work(int noutput_items,gr_vector_const_void_star & input_items,gr_vector_void_star & output_items)55 int rotator_cc_impl::work(int noutput_items,
56 gr_vector_const_void_star& input_items,
57 gr_vector_void_star& output_items)
58 {
59 const gr_complex* in = (const gr_complex*)input_items[0];
60 gr_complex* out = (gr_complex*)output_items[0];
61
62 d_r.rotateN(out, in, noutput_items);
63
64 return noutput_items;
65 }
66
67 } /* namespace blocks */
68 } /* namespace gr */
69