1 /* -*- c++ -*- */
2 /*
3 * Copyright 2012 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 "interleaved_short_array_to_complex.h"
28 #include "interleaved_short_to_complex_impl.h"
29 #include <gnuradio/io_signature.h>
30
31 namespace gr {
32 namespace blocks {
33
make(bool vector_input,bool swap)34 interleaved_short_to_complex::sptr interleaved_short_to_complex::make(bool vector_input,
35 bool swap)
36 {
37 return gnuradio::get_initial_sptr(
38 new interleaved_short_to_complex_impl(vector_input, swap));
39 }
40
interleaved_short_to_complex_impl(bool vector_input,bool swap)41 interleaved_short_to_complex_impl::interleaved_short_to_complex_impl(bool vector_input,
42 bool swap)
43 : sync_decimator("interleaved_short_to_complex",
44 gr::io_signature::make(1, 1, (vector_input ? 2 : 1) * sizeof(short)),
45 gr::io_signature::make(1, 1, sizeof(gr_complex)),
46 vector_input ? 1 : 2),
47 d_swap(swap)
48 {
49 }
50
set_swap(bool swap)51 void interleaved_short_to_complex_impl::set_swap(bool swap) { d_swap = swap; }
52
work(int noutput_items,gr_vector_const_void_star & input_items,gr_vector_void_star & output_items)53 int interleaved_short_to_complex_impl::work(int noutput_items,
54 gr_vector_const_void_star& input_items,
55 gr_vector_void_star& output_items)
56 {
57 const short* in = (const short*)input_items[0];
58 gr_complex* out = (gr_complex*)output_items[0];
59
60 interleaved_short_array_to_complex(in, out, 2 * noutput_items);
61
62 if (d_swap) {
63 float* p = (float*)output_items[0];
64 for (int i = 0; i < noutput_items; ++i) {
65 float f = p[2 * i + 1];
66 p[2 * i + 1] = p[2 * i + 0];
67 p[2 * i + 0] = f;
68 }
69 }
70
71 return noutput_items;
72 }
73
74 } /* namespace blocks */
75 } /* namespace gr */
76