Jack2 1.9.10
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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