Jack2 1.9.8
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00001 /* 00002 Copyright (C) 2001 Paul Davis 00003 Copyright (C) 2004 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 __JackAlsaDriver__ 00022 #define __JackAlsaDriver__ 00023 00024 #include "JackAudioDriver.h" 00025 #include "JackThreadedDriver.h" 00026 #include "JackTime.h" 00027 #include "alsa_driver.h" 00028 00029 namespace Jack 00030 { 00031 00036 class JackAlsaDriver : public JackAudioDriver 00037 { 00038 00039 private: 00040 00041 jack_driver_t* fDriver; 00042 int fReservedCaptureDevice; 00043 int fReservedPlaybackDevice; 00044 00045 void UpdateLatencies(); 00046 00047 public: 00048 00049 JackAlsaDriver(const char* name, const char* alias, JackLockedEngine* engine, JackSynchro* table) 00050 : JackAudioDriver(name, alias, engine, table),fDriver(NULL),fReservedCaptureDevice(-1),fReservedPlaybackDevice(-1) 00051 {} 00052 virtual ~JackAlsaDriver() 00053 {} 00054 00055 int Open(jack_nframes_t buffer_size, 00056 jack_nframes_t user_nperiods, 00057 jack_nframes_t samplerate, 00058 bool hw_monitoring, 00059 bool hw_metering, 00060 bool capturing, 00061 bool playing, 00062 DitherAlgorithm dither, 00063 bool soft_mode, 00064 bool monitor, 00065 int inchannels, 00066 int outchannels, 00067 bool shorts_first, 00068 const char* capture_driver_name, 00069 const char* playback_driver_name, 00070 jack_nframes_t capture_latency, 00071 jack_nframes_t playback_latency, 00072 const char* midi_driver_name); 00073 00074 int Close(); 00075 int Attach(); 00076 int Detach(); 00077 00078 int Start(); 00079 int Stop(); 00080 00081 int Read(); 00082 int Write(); 00083 00084 // BufferSize can be changed 00085 bool IsFixedBufferSize() 00086 { 00087 return false; 00088 } 00089 00090 int SetBufferSize(jack_nframes_t buffer_size); 00091 00092 void ReadInputAux(jack_nframes_t orig_nframes, snd_pcm_sframes_t contiguous, snd_pcm_sframes_t nread); 00093 void MonitorInputAux(); 00094 void ClearOutputAux(); 00095 void WriteOutputAux(jack_nframes_t orig_nframes, snd_pcm_sframes_t contiguous, snd_pcm_sframes_t nwritten); 00096 void SetTimetAux(jack_time_t time); 00097 00098 // JACK API emulation for the midi driver 00099 int is_realtime() const; 00100 int create_thread(pthread_t *thread, int prio, int rt, void *(*start_func)(void*), void *arg); 00101 00102 jack_port_id_t port_register(const char *port_name, const char *port_type, unsigned long flags, unsigned long buffer_size); 00103 int port_unregister(jack_port_id_t port_index); 00104 void* port_get_buffer(int port, jack_nframes_t nframes); 00105 int port_set_alias(int port, const char* name); 00106 00107 jack_nframes_t get_sample_rate() const; 00108 jack_nframes_t frame_time() const; 00109 jack_nframes_t last_frame_time() const; 00110 }; 00111 00112 } // end of namespace 00113 00114 #endif