1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
/* -*- c++ -*- */
/*
* Copyright 2004,2009,2010,2012,2018 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "multiply_const_impl.h"
#include <gnuradio/io_signature.h>
#include <volk/volk.h>
namespace gr {
namespace blocks {
template <class T>
typename multiply_const<T>::sptr multiply_const<T>::make(T k, size_t vlen)
{
return gnuradio::make_block_sptr<multiply_const_impl<T>>(k, vlen);
}
template <>
multiply_const_impl<float>::multiply_const_impl(float k, size_t vlen)
: sync_block("multiply_const_ff",
io_signature::make(1, 1, sizeof(float) * vlen),
io_signature::make(1, 1, sizeof(float) * vlen)),
d_k(k),
d_vlen(vlen)
{
const int alignment_multiple = volk_get_alignment() / sizeof(float);
set_alignment(std::max(1, alignment_multiple));
}
template <>
int multiply_const_impl<float>::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
const float* in = (const float*)input_items[0];
float* out = (float*)output_items[0];
int noi = noutput_items * d_vlen;
volk_32f_s32f_multiply_32f(out, in, d_k, noi);
return noutput_items;
}
template <>
multiply_const_impl<gr_complex>::multiply_const_impl(gr_complex k, size_t vlen)
: sync_block("multiply_const_cc",
io_signature::make(1, 1, sizeof(gr_complex) * vlen),
io_signature::make(1, 1, sizeof(gr_complex) * vlen)),
d_k(k),
d_vlen(vlen)
{
const int alignment_multiple = volk_get_alignment() / sizeof(gr_complex);
set_alignment(std::max(1, alignment_multiple));
}
template <>
int multiply_const_impl<gr_complex>::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
const gr_complex* in = (const gr_complex*)input_items[0];
gr_complex* out = (gr_complex*)output_items[0];
int noi = noutput_items * d_vlen;
volk_32fc_s32fc_multiply_32fc(out, in, d_k, noi);
return noutput_items;
}
template <class T>
multiply_const_impl<T>::multiply_const_impl(T k, size_t vlen)
: sync_block("multiply_const",
io_signature::make(1, 1, sizeof(T) * vlen),
io_signature::make(1, 1, sizeof(T) * vlen)),
d_k(k),
d_vlen(vlen)
{
}
template <class T>
int multiply_const_impl<T>::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
T* iptr = (T*)input_items[0];
T* optr = (T*)output_items[0];
int size = noutput_items * d_vlen;
while (size >= 8) {
*optr++ = *iptr++ * d_k;
*optr++ = *iptr++ * d_k;
*optr++ = *iptr++ * d_k;
*optr++ = *iptr++ * d_k;
*optr++ = *iptr++ * d_k;
*optr++ = *iptr++ * d_k;
*optr++ = *iptr++ * d_k;
*optr++ = *iptr++ * d_k;
size -= 8;
}
while (size-- > 0)
*optr++ = *iptr++ * d_k;
return noutput_items;
}
template class multiply_const<std::int16_t>;
template class multiply_const<std::int32_t>;
template class multiply_const<float>;
template class multiply_const<gr_complex>;
} /* namespace blocks */
} /* namespace gr */
|
