00001
00002
00003
00004
00005
00006
00007
00008
00009
00010
00011
00012
00013
00014
00015
00016
00017
00018
00019
00020
00021 #ifndef __JackAlsaDriver__
00022 #define __JackAlsaDriver__
00023
00024 #include "JackAudioDriver.h"
00025 #include "JackThreadedDriver.h"
00026 #include "JackTime.h"
00027
00028 #include "alsa_driver.h"
00029
00030 namespace Jack
00031 {
00032
00037 class JackAlsaDriver : public JackAudioDriver
00038 {
00039
00040 private:
00041
00042 jack_driver_t* fDriver;
00043 jack_time_t fDelayedUst;
00044
00045 void alsa_driver_release_channel_dependent_memory (alsa_driver_t *driver);
00046 int alsa_driver_check_capabilities (alsa_driver_t *driver);
00047 int alsa_driver_check_card_type (alsa_driver_t *driver);
00048 int alsa_driver_hammerfall_hardware (alsa_driver_t *driver);
00049 int alsa_driver_hdsp_hardware (alsa_driver_t *driver);
00050 int alsa_driver_ice1712_hardware (alsa_driver_t *driver);
00051 int alsa_driver_usx2y_hardware (alsa_driver_t *driver);
00052 int alsa_driver_generic_hardware (alsa_driver_t *driver);
00053 int alsa_driver_hw_specific (alsa_driver_t *driver, int hw_monitoring,
00054 int hw_metering);
00055 void alsa_driver_setup_io_function_pointers (alsa_driver_t *driver);
00056 int alsa_driver_configure_stream (alsa_driver_t *driver, char *device_name,
00057 const char *stream_name,
00058 snd_pcm_t *handle,
00059 snd_pcm_hw_params_t *hw_params,
00060 snd_pcm_sw_params_t *sw_params,
00061 unsigned int *nperiodsp,
00062 unsigned long *nchns,
00063 unsigned long sample_width);
00064
00065 int alsa_driver_set_parameters (alsa_driver_t *driver,
00066 jack_nframes_t frames_per_cycle,
00067 jack_nframes_t user_nperiods,
00068 jack_nframes_t rate);
00069
00070 int alsa_driver_reset_parameters (alsa_driver_t *driver,
00071 jack_nframes_t frames_per_cycle,
00072 jack_nframes_t user_nperiods,
00073 jack_nframes_t rate);
00074
00075 int alsa_driver_get_channel_addresses (alsa_driver_t *driver,
00076 snd_pcm_uframes_t *capture_avail,
00077 snd_pcm_uframes_t *playback_avail,
00078 snd_pcm_uframes_t *capture_offset,
00079 snd_pcm_uframes_t *playback_offset);
00080
00081 jack_driver_t * alsa_driver_new(const char *name, char *playback_alsa_device,
00082 char *capture_alsa_device,
00083 jack_client_t *client,
00084 jack_nframes_t frames_per_cycle,
00085 jack_nframes_t user_nperiods,
00086 jack_nframes_t rate,
00087 int hw_monitoring,
00088 int hw_metering,
00089 int capturing,
00090 int playing,
00091 DitherAlgorithm dither,
00092 int soft_mode,
00093 int monitor,
00094 int user_capture_nchnls,
00095 int user_playback_nchnls,
00096 int shorts_first,
00097 jack_nframes_t capture_latency,
00098 jack_nframes_t playback_latency,
00099 alsa_midi_t *midi
00100 );
00101
00102 void alsa_driver_delete(alsa_driver_t *driver);
00103 int alsa_driver_start(alsa_driver_t *driver);
00104 int alsa_driver_stop(alsa_driver_t *driver);
00105 int alsa_driver_read(alsa_driver_t *driver, jack_nframes_t nframes);
00106 int alsa_driver_write(alsa_driver_t *driver, jack_nframes_t nframes);
00107
00108 jack_nframes_t alsa_driver_wait (alsa_driver_t *driver, int extra_fd, int *status, float
00109 *delayed_usecs);
00110
00111 void alsa_driver_silence_untouched_channels (alsa_driver_t *driver,
00112 jack_nframes_t nframes);
00113
00114 int alsa_driver_restart (alsa_driver_t *driver);
00115 int alsa_driver_xrun_recovery (alsa_driver_t *driver, float *delayed_usecs);
00116 void jack_driver_init (jack_driver_t *driver);
00117 void jack_driver_nt_init (jack_driver_nt_t * driver);
00118
00119 public:
00120
00121 JackAlsaDriver(const char* name, JackEngine* engine, JackSynchro** table): JackAudioDriver(name, engine, table)
00122 {}
00123 virtual ~JackAlsaDriver()
00124 {}
00125
00126 int Open(jack_nframes_t nframes,
00127 jack_nframes_t user_nperiods,
00128 jack_nframes_t samplerate,
00129 bool hw_monitoring,
00130 bool hw_metering,
00131 bool capturing,
00132 bool playing,
00133 DitherAlgorithm dither,
00134 bool soft_mode,
00135 bool monitor,
00136 int inchannels,
00137 int outchannels,
00138 bool shorts_first,
00139 const char* capture_driver_name,
00140 const char* playback_driver_name,
00141 jack_nframes_t capture_latency,
00142 jack_nframes_t playback_latency,
00143 const char* midi_driver_name);
00144
00145 int Close();
00146 int Attach();
00147 int Detach();
00148
00149 int Start();
00150 int Stop();
00151
00152 int Read();
00153 int Write();
00154
00155 int SetBufferSize(jack_nframes_t nframes);
00156
00157
00158
00159
00160 int is_realtime() const;
00161 int create_thread(pthread_t *thread, int prio, int rt, void *(*start_func)(void*), void *arg);
00162
00163 int port_register(const char *port_name, const char *port_type, unsigned long flags, unsigned long buf_size);
00164 int port_unregister(int port);
00165 void* port_get_buffer(int port, jack_nframes_t nframes);
00166 int port_set_alias(int port, const char* name);
00167
00168 jack_nframes_t get_sample_rate() const;
00169 jack_nframes_t frame_time() const;
00170 jack_nframes_t last_frame_time() const;
00171 };
00172
00173 }
00174
00175 #endif