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 "abs_blk_impl.h"
29 #include <gnuradio/io_signature.h>
30
31 namespace gr {
32 namespace blocks {
33
34 template <class T>
make(size_t vlen)35 typename abs_blk<T>::sptr abs_blk<T>::make(size_t vlen)
36 {
37 return gnuradio::get_initial_sptr(new abs_blk_impl<T>(vlen));
38 }
39
40 template <class T>
abs_blk_impl(size_t vlen)41 abs_blk_impl<T>::abs_blk_impl(size_t vlen)
42 : sync_block("abs_blk",
43 io_signature::make(1, 1, sizeof(T) * vlen),
44 io_signature::make(1, 1, sizeof(T) * vlen)),
45 d_vlen(vlen)
46 {
47 }
48
49 template <class T>
work(int noutput_items,gr_vector_const_void_star & input_items,gr_vector_void_star & output_items)50 int abs_blk_impl<T>::work(int noutput_items,
51 gr_vector_const_void_star& input_items,
52 gr_vector_void_star& output_items)
53 {
54 T* iptr = (T*)input_items[0];
55 T* optr = (T*)output_items[0];
56
57 for (size_t i = 0; i < noutput_items * d_vlen; i++) {
58 T val = iptr[i];
59 optr[i] = ((val < ((T)0)) ? -val : val);
60 }
61
62 return noutput_items;
63 }
64
65 template class abs_blk<std::int16_t>;
66 template class abs_blk<std::int32_t>;
67 template class abs_blk<float>;
68 } /* namespace blocks */
69 } /* namespace gr */
70