Jack2  1.9.9
JackAudioAdapterFactory.cpp
1 /*
2 Copyright (C) 2008-2012 Grame
3 
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
8 
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13 
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17 
18 */
19 
20 #include "JackAudioAdapter.h"
21 #include "JackPlatformPlug.h"
22 #include "JackArgParser.h"
23 
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <assert.h>
27 
28 #ifdef __APPLE__
29 #include "JackCoreAudioAdapter.h"
30 #define JackPlatformAdapter JackCoreAudioAdapter
31 #endif
32 
33 #ifdef __linux__
34 #include "JackAlsaAdapter.h"
35 #define JackPlatformAdapter JackAlsaAdapter
36 #endif
37 
38 #if defined(__sun__) || defined(sun)
39 #include "JackOSSAdapter.h"
40 #define JackPlatformAdapter JackOSSAdapter
41 #endif
42 
43 #ifdef WIN32
44 #include "JackPortAudioAdapter.h"
45 #define JackPlatformAdapter JackPortAudioAdapter
46 #endif
47 
48 #ifdef __cplusplus
49 extern "C"
50 {
51 #endif
52 
53  using namespace Jack;
54 
55  SERVER_EXPORT int jack_internal_initialize(jack_client_t* jack_client, const JSList* params)
56  {
57  jack_log("Loading audioadapter");
58 
59  Jack::JackAudioAdapter* adapter;
60  jack_nframes_t buffer_size = jack_get_buffer_size(jack_client);
61  jack_nframes_t sample_rate = jack_get_sample_rate(jack_client);
62 
63  try {
64 
65  adapter = new Jack::JackAudioAdapter(jack_client, new Jack::JackPlatformAdapter(buffer_size, sample_rate, params));
66  assert(adapter);
67 
68  if (adapter->Open() == 0) {
69  return 0;
70  } else {
71  delete adapter;
72  return 1;
73  }
74 
75  } catch (...) {
76  jack_info("audioadapter allocation error");
77  return 1;
78  }
79  }
80 
81  SERVER_EXPORT int jack_initialize(jack_client_t* jack_client, const char* load_init)
82  {
83  JSList* params = NULL;
84  bool parse_params = true;
85  int res = 1;
86  jack_driver_desc_t* desc = jack_get_descriptor();
87 
88  Jack::JackArgParser parser(load_init);
89  if (parser.GetArgc() > 0) {
90  parse_params = parser.ParseParams(desc, &params);
91  }
92 
93  if (parse_params) {
94  res = jack_internal_initialize(jack_client, params);
95  parser.FreeParams(params);
96  }
97  return res;
98  }
99 
100  SERVER_EXPORT void jack_finish(void* arg)
101  {
102  Jack::JackAudioAdapter* adapter = static_cast<Jack::JackAudioAdapter*>(arg);
103 
104  if (adapter) {
105  jack_log("Unloading audioadapter");
106  adapter->Close();
107  delete adapter;
108  }
109  }
110 
111 #ifdef __cplusplus
112 }
113 #endif
SERVER_EXPORT void jack_info(const char *fmt,...)
Definition: JackError.cpp:99
Audio adapter : Jack client side.
LIB_EXPORT jack_nframes_t jack_get_buffer_size(jack_client_t *)
Definition: JackAPI.cpp:1227
LIB_EXPORT jack_nframes_t jack_get_sample_rate(jack_client_t *)
Definition: JackAPI.cpp:1213
SERVER_EXPORT void jack_log(const char *fmt,...)
Definition: JackError.cpp:107