Jack2  1.9.10
JackAudioDriver.h
00001 /*
00002 Copyright (C) 2001 Paul Davis
00003 Copyright (C) 2004-2008 Grame
00004 
00005 This program is free software; you can redistribute it and/or modify
00006 it under the terms of the GNU General Public License as published by
00007 the Free Software Foundation; either version 2 of the License, or
00008 (at your option) any later version.
00009 
00010 This program is distributed in the hope that it will be useful,
00011 but WITHOUT ANY WARRANTY; without even the implied warranty of
00012 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013 GNU General Public License for more details.
00014 
00015 You should have received a copy of the GNU General Public License
00016 along with this program; if not, write to the Free Software
00017 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00018 
00019 */
00020 
00021 #ifndef __JackAudioDriver__
00022 #define __JackAudioDriver__
00023 
00024 #include "JackDriver.h"
00025 
00026 namespace Jack
00027 {
00028 
00042 class SERVER_EXPORT JackAudioDriver : public JackDriver
00043 {
00044 
00045     protected:
00046 
00047         jack_default_audio_sample_t* GetInputBuffer(int port_index);
00048         jack_default_audio_sample_t* GetOutputBuffer(int port_index);
00049         jack_default_audio_sample_t* GetMonitorBuffer(int port_index);
00050 
00051         void HandleLatencyCallback(int status);
00052         virtual void UpdateLatencies();
00053 
00054         int ProcessAsync();
00055         void ProcessGraphAsync();
00056         void ProcessGraphAsyncMaster();
00057         void ProcessGraphAsyncSlave();
00058 
00059         int ProcessSync();
00060         void ProcessGraphSync();
00061         void ProcessGraphSyncMaster();
00062         void ProcessGraphSyncSlave();
00063 
00064     public:
00065 
00066         JackAudioDriver(const char* name, const char* alias, JackLockedEngine* engine, JackSynchro* table);
00067         virtual ~JackAudioDriver();
00068 
00069         virtual int Open(jack_nframes_t buffer_size,
00070                         jack_nframes_t samplerate,
00071                         bool capturing,
00072                         bool playing,
00073                         int inchannels,
00074                         int outchannels,
00075                         bool monitor,
00076                         const char* capture_driver_name,
00077                         const char* playback_driver_name,
00078                         jack_nframes_t capture_latency,
00079                         jack_nframes_t playback_latency);
00080 
00081         /*
00082             To be called by the underlying driver audio callback, or possibly by a RT thread (using JackThreadedDriver decorator) 
00083             when a blocking read/write underlying API is used (like ALSA)
00084         */
00085         virtual int Process();
00086 
00087         virtual int Attach();
00088         virtual int Detach();
00089 
00090         virtual int Write();
00091 
00092         virtual int SetBufferSize(jack_nframes_t buffer_size);
00093         virtual int SetSampleRate(jack_nframes_t sample_rate);
00094 
00095         virtual int ClientNotify(int refnum, const char* name, int notify, int sync, const char* message, int value1, int value2);
00096 
00097 };
00098 
00099 } // end of namespace
00100 
00101 #endif