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
|
/*
Copyright (C) 2006 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <cassert>
#include <glib.h>
#include <ardour/base_audio_port.h>
#include <ardour/audioengine.h>
#include <ardour/data_type.h>
using namespace ARDOUR;
using namespace std;
nframes_t BaseAudioPort::_short_over_length = 2;
nframes_t BaseAudioPort::_long_over_length = 10;
BaseAudioPort::BaseAudioPort (const std::string& name, Flags flgs)
: Port (name, flgs)
, _buffer (0)
, _own_buffer (false)
{
_type = DataType::AUDIO;
_mixdown = default_mixdown;
}
BaseAudioPort::~BaseAudioPort ()
{
if (_own_buffer) {
delete _buffer;
}
}
void
BaseAudioPort::reset()
{
Port::reset();
if (_own_buffer && _buffer) {
_buffer->resize (engine->frames_per_cycle());
_buffer->clear ();
}
_metering = 0;
reset_meters ();
}
void
BaseAudioPort::default_mixdown (const set<Port*>& ports, AudioBuffer* dest, nframes_t cnt, nframes_t offset, bool first_overwrite)
{
set<Port*>::const_iterator p = ports.begin();
if (first_overwrite) {
dest->read_from ((dynamic_cast<BaseAudioPort*>(*p))->get_audio_buffer( cnt, offset ), cnt, offset);
p++;
}
for (; p != ports.end(); ++p) {
dest->accumulate_from ((dynamic_cast<BaseAudioPort*>(*p))->get_audio_buffer( cnt, offset ), cnt, offset);
}
}
void
BaseAudioPort::set_mixdown_function (void (*func)(const set<Port*>&, AudioBuffer*, nframes_t, nframes_t, bool))
{
g_atomic_pointer_set(&_mixdown, func);
}
|
