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
|
//
// Copyright 2012 Josh Blum
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with io_sig program. If not, see <http://www.gnu.org/licenses/>.
#include "element_impl.hpp"
#include <gr_block.h>
gr_block::gr_block(void)
{
//NOP
}
gr_block::gr_block(
const std::string &name,
gr_io_signature_sptr input_signature,
gr_io_signature_sptr output_signature
):
gnuradio::Block(name)
{
this->set_fixed_rate(false);
this->set_input_signature(input_signature);
this->set_output_signature(output_signature);
}
int gr_block::Work(
const InputItems &input_items,
const OutputItems &output_items
){
return this->general_work(
(*this)->block->work_noutput_items,
(*this)->block->work_ninput_items,
(*this)->block->work_input_items,
(*this)->block->work_output_items
);
}
int gr_block::general_work(
int noutput_items,
gr_vector_int &ninput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items
){
throw std::runtime_error("gr_block subclasses must overload general_work!");
}
void gr_block::set_alignment(const size_t)
{
//TODO
//probably dont need this since buffers always start aligned
//and therefore alignment is always re-acheived
}
bool gr_block::is_unaligned(void)
{
//TODO
//probably dont need this since volk dispatcher checks alignment
//32 byte aligned is good enough for you
return ((*this)->block->work_io_ptr_mask & ptrdiff_t(GRAS_MAX_ALIGNMENT-1)) != 0;
}
size_t gr_block::fixed_rate_noutput_to_ninput(const size_t noutput_items)
{
return (*this)->block->input_history_items[0] +
size_t((noutput_items/this->relative_rate()));
}
size_t gr_block::interpolation(void) const
{
return size_t(1.0*this->relative_rate());
}
void gr_block::set_interpolation(const size_t interp)
{
this->set_relative_rate(1.0*interp);
}
size_t gr_block::decimation(void) const
{
return size_t(1.0/this->relative_rate());
}
void gr_block::set_decimation(const size_t decim)
{
this->set_relative_rate(1.0/decim);
}
|
