1 /* -*- c++ -*- */
2 /*
3 * Copyright 2012,2018 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
24 #ifdef HAVE_CONFIG_H
25 #include "config.h"
26 #endif
27
28 #include "xor_blk_impl.h"
29 #include <gnuradio/io_signature.h>
30
31 namespace gr {
32 namespace blocks {
33 template <class T>
make(size_t vlen)34 typename xor_blk<T>::sptr xor_blk<T>::make(size_t vlen)
35 {
36 return gnuradio::get_initial_sptr(new xor_blk_impl<T>(vlen));
37 }
38
39 template <class T>
xor_blk_impl(size_t vlen)40 xor_blk_impl<T>::xor_blk_impl(size_t vlen)
41 : sync_block("xor_blk",
42 io_signature::make(1, -1, sizeof(T) * vlen),
43 io_signature::make(1, 1, sizeof(T) * vlen)),
44 d_vlen(vlen)
45 {
46 }
47
48 template <class T>
work(int noutput_items,gr_vector_const_void_star & input_items,gr_vector_void_star & output_items)49 int xor_blk_impl<T>::work(int noutput_items,
50 gr_vector_const_void_star& input_items,
51 gr_vector_void_star& output_items)
52 {
53 T* optr = (T*)output_items[0];
54
55 int ninputs = input_items.size();
56
57 for (size_t i = 0; i < noutput_items * d_vlen; i++) {
58 T acc = ((T*)input_items[0])[i];
59 for (int j = 1; j < ninputs; j++)
60 acc ^= ((T*)input_items[j])[i];
61
62 *optr++ = (T)acc;
63 }
64
65 return noutput_items;
66 }
67
68 template class xor_blk<std::uint8_t>;
69 template class xor_blk<std::int16_t>;
70 template class xor_blk<std::int32_t>;
71 } /* namespace blocks */
72 } /* namespace gr */
73