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
|
/*
Copyright (C) 2013 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 "jack_connection.h"
#include "jack_audiobackend.h"
using namespace ARDOUR;
static boost::shared_ptr<JACKAudioBackend> backend;
static boost::shared_ptr<JackConnection> jack_connection;
static boost::shared_ptr<AudioBackend> backend_factory (AudioEngine& ae);
static int instantiate (const std::string& arg1, const std::string& arg2);
static int deinstantiate ();
static bool already_configured ();
static bool available ();
static ARDOUR::AudioBackendInfo _descriptor = {
"JACK",
instantiate,
deinstantiate,
backend_factory,
already_configured,
available
};
static boost::shared_ptr<AudioBackend>
backend_factory (AudioEngine& ae)
{
if (!jack_connection) {
return boost::shared_ptr<AudioBackend>();
}
if (!backend) {
backend.reset (new JACKAudioBackend (ae, _descriptor, jack_connection));
}
return backend;
}
static int
instantiate (const std::string& arg1, const std::string& arg2)
{
try {
jack_connection.reset (new JackConnection (arg1, arg2));
} catch (...) {
return -1;
}
return 0;
}
static int
deinstantiate ()
{
backend.reset ();
jack_connection.reset ();
return 0;
}
static bool
already_configured ()
{
return !JackConnection::in_control ();
}
static bool
available ()
{
return have_libjack() ? false : true;
}
extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor() { return &_descriptor; }
|
