Jack2  1.9.10
JackAudioDriver.h
1 /*
2 Copyright (C) 2001 Paul Davis
3 Copyright (C) 2004-2008 Grame
4 
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9 
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14 
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 
19 */
20 
21 #ifndef __JackAudioDriver__
22 #define __JackAudioDriver__
23 
24 #include "JackDriver.h"
25 
26 namespace Jack
27 {
28 
42 class SERVER_EXPORT JackAudioDriver : public JackDriver
43 {
44 
45  protected:
46 
47  jack_default_audio_sample_t* GetInputBuffer(int port_index);
48  jack_default_audio_sample_t* GetOutputBuffer(int port_index);
49  jack_default_audio_sample_t* GetMonitorBuffer(int port_index);
50 
51  void HandleLatencyCallback(int status);
52  virtual void UpdateLatencies();
53 
54  int ProcessAsync();
55  void ProcessGraphAsync();
56  void ProcessGraphAsyncMaster();
57  void ProcessGraphAsyncSlave();
58 
59  int ProcessSync();
60  void ProcessGraphSync();
61  void ProcessGraphSyncMaster();
62  void ProcessGraphSyncSlave();
63 
64  public:
65 
66  JackAudioDriver(const char* name, const char* alias, JackLockedEngine* engine, JackSynchro* table);
67  virtual ~JackAudioDriver();
68 
69  virtual int Open(jack_nframes_t buffer_size,
70  jack_nframes_t samplerate,
71  bool capturing,
72  bool playing,
73  int inchannels,
74  int outchannels,
75  bool monitor,
76  const char* capture_driver_name,
77  const char* playback_driver_name,
78  jack_nframes_t capture_latency,
79  jack_nframes_t playback_latency);
80 
81  /*
82  To be called by the underlying driver audio callback, or possibly by a RT thread (using JackThreadedDriver decorator)
83  when a blocking read/write underlying API is used (like ALSA)
84  */
85  virtual int Process();
86 
87  virtual int Attach();
88  virtual int Detach();
89 
90  virtual int Write();
91 
92  virtual int SetBufferSize(jack_nframes_t buffer_size);
93  virtual int SetSampleRate(jack_nframes_t sample_rate);
94 
95  virtual int ClientNotify(int refnum, const char* name, int notify, int sync, const char* message, int value1, int value2);
96 
97 };
98 
99 } // end of namespace
100 
101 #endif