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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
00044 void alsa_driver_release_channel_dependent_memory(alsa_driver_t *driver);
00045 int alsa_driver_check_capabilities(alsa_driver_t *driver);
00046 int alsa_driver_check_card_type(alsa_driver_t *driver);
00047 int alsa_driver_hammerfall_hardware(alsa_driver_t *driver);
00048 int alsa_driver_hdsp_hardware(alsa_driver_t *driver);
00049 int alsa_driver_ice1712_hardware(alsa_driver_t *driver);
00050 int alsa_driver_usx2y_hardware(alsa_driver_t *driver);
00051 int alsa_driver_generic_hardware(alsa_driver_t *driver);
00052 int alsa_driver_hw_specific(alsa_driver_t *driver, int hw_monitoring,
00053 int hw_metering);
00054 void alsa_driver_setup_io_function_pointers (alsa_driver_t *driver);
00055 int alsa_driver_configure_stream(alsa_driver_t *driver, char *device_name,
00056 const char *stream_name,
00057 snd_pcm_t *handle,
00058 snd_pcm_hw_params_t *hw_params,
00059 snd_pcm_sw_params_t *sw_params,
00060 unsigned int *nperiodsp,
00061 unsigned long *nchns,
00062 unsigned long sample_width);
00063
00064 int alsa_driver_set_parameters(alsa_driver_t *driver,
00065 jack_nframes_t frames_per_cycle,
00066 jack_nframes_t user_nperiods,
00067 jack_nframes_t rate);
00068
00069 int alsa_driver_reset_parameters(alsa_driver_t *driver,
00070 jack_nframes_t frames_per_cycle,
00071 jack_nframes_t user_nperiods,
00072 jack_nframes_t rate);
00073
00074 int alsa_driver_get_channel_addresses(alsa_driver_t *driver,
00075 snd_pcm_uframes_t *capture_avail,
00076 snd_pcm_uframes_t *playback_avail,
00077 snd_pcm_uframes_t *capture_offset,
00078 snd_pcm_uframes_t *playback_offset);
00079
00080 jack_driver_t * alsa_driver_new(const char *name, char *playback_alsa_device,
00081 char *capture_alsa_device,
00082 jack_client_t *client,
00083 jack_nframes_t frames_per_cycle,
00084 jack_nframes_t user_nperiods,
00085 jack_nframes_t rate,
00086 int hw_monitoring,
00087 int hw_metering,
00088 int capturing,
00089 int playing,
00090 DitherAlgorithm dither,
00091 int soft_mode,
00092 int monitor,
00093 int user_capture_nchnls,
00094 int user_playback_nchnls,
00095 int shorts_first,
00096 jack_nframes_t capture_latency,
00097 jack_nframes_t playback_latency,
00098 alsa_midi_t *midi);
00099
00100 void alsa_driver_delete(alsa_driver_t *driver);
00101 int alsa_driver_start(alsa_driver_t *driver);
00102 int alsa_driver_stop(alsa_driver_t *driver);
00103 int alsa_driver_read(alsa_driver_t *driver, jack_nframes_t nframes);
00104 int alsa_driver_write(alsa_driver_t *driver, jack_nframes_t nframes);
00105
00106 jack_nframes_t alsa_driver_wait(alsa_driver_t *driver, int extra_fd, int *status, float
00107 *delayed_usecs);
00108
00109 void alsa_driver_silence_untouched_channels(alsa_driver_t *driver,
00110 jack_nframes_t nframes);
00111
00112 int alsa_driver_restart(alsa_driver_t *driver);
00113 int alsa_driver_xrun_recovery(alsa_driver_t *driver, float *delayed_usecs);
00114 void jack_driver_init(jack_driver_t *driver);
00115 void jack_driver_nt_init(jack_driver_nt_t * driver);
00116
00117 public:
00118
00119 JackAlsaDriver(const char* name, const char* alias, JackLockedEngine* engine, JackSynchro* table): JackAudioDriver(name, alias, engine, table)
00120 {}
00121 virtual ~JackAlsaDriver()
00122 {}
00123
00124 int Open(jack_nframes_t buffer_size,
00125 jack_nframes_t user_nperiods,
00126 jack_nframes_t samplerate,
00127 bool hw_monitoring,
00128 bool hw_metering,
00129 bool capturing,
00130 bool playing,
00131 DitherAlgorithm dither,
00132 bool soft_mode,
00133 bool monitor,
00134 int inchannels,
00135 int outchannels,
00136 bool shorts_first,
00137 const char* capture_driver_name,
00138 const char* playback_driver_name,
00139 jack_nframes_t capture_latency,
00140 jack_nframes_t playback_latency,
00141 const char* midi_driver_name);
00142
00143 int Close();
00144 int Attach();
00145 int Detach();
00146
00147 int Start();
00148 int Stop();
00149
00150 int Read();
00151 int Write();
00152
00153
00154 bool IsFixedBufferSize()
00155 {
00156 return false;
00157 }
00158
00159 int SetBufferSize(jack_nframes_t buffer_size);
00160
00161
00162 int is_realtime() const;
00163 int create_thread(pthread_t *thread, int prio, int rt, void *(*start_func)(void*), void *arg);
00164
00165 jack_port_id_t port_register(const char *port_name, const char *port_type, unsigned long flags, unsigned long buffer_size);
00166 int port_unregister(jack_port_id_t port_index);
00167 void* port_get_buffer(int port, jack_nframes_t nframes);
00168 int port_set_alias(int port, const char* name);
00169
00170 jack_nframes_t get_sample_rate() const;
00171 jack_nframes_t frame_time() const;
00172 jack_nframes_t last_frame_time() const;
00173 };
00174
00175 }
00176
00177 #endif