diff options
Diffstat (limited to 'drivers/alsa/alsa_driver.h')
| -rw-r--r-- | drivers/alsa/alsa_driver.h | 269 |
1 files changed, 136 insertions, 133 deletions
diff --git a/drivers/alsa/alsa_driver.h b/drivers/alsa/alsa_driver.h index 074ac69..5066bcc 100644 --- a/drivers/alsa/alsa_driver.h +++ b/drivers/alsa/alsa_driver.h @@ -1,5 +1,5 @@ /* - Copyright (C) 2001 Paul Davis + Copyright (C) 2001 Paul Davis This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -15,7 +15,7 @@ along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ + */ #ifndef __jack_alsa_driver_h__ #define __jack_alsa_driver_h__ @@ -38,180 +38,183 @@ #include "driver.h" #include "memops.h" -typedef void (*ReadCopyFunction) (jack_default_audio_sample_t *dst, char *src, - unsigned long src_bytes, - unsigned long src_skip_bytes); -typedef void (*WriteCopyFunction) (char *dst, jack_default_audio_sample_t *src, - unsigned long src_bytes, - unsigned long dst_skip_bytes, - dither_state_t *state); +typedef void (*ReadCopyFunction)(jack_default_audio_sample_t *dst, char *src, + unsigned long src_bytes, + unsigned long src_skip_bytes); +typedef void (*WriteCopyFunction)(char *dst, jack_default_audio_sample_t *src, + unsigned long src_bytes, + unsigned long dst_skip_bytes, + dither_state_t *state); typedef struct _alsa_driver { - JACK_DRIVER_NT_DECL - - int poll_timeout; - jack_time_t poll_last; - jack_time_t poll_next; - char **playback_addr; - char **capture_addr; - const snd_pcm_channel_area_t *capture_areas; - const snd_pcm_channel_area_t *playback_areas; - struct pollfd *pfd; - unsigned int playback_nfds; - unsigned int capture_nfds; - unsigned long interleave_unit; - unsigned long *capture_interleave_skip; - unsigned long *playback_interleave_skip; - channel_t max_nchannels; - channel_t user_nchannels; - channel_t playback_nchannels; - channel_t capture_nchannels; - unsigned long playback_sample_bytes; - unsigned long capture_sample_bytes; - - jack_nframes_t frame_rate; - jack_nframes_t frames_per_cycle; - jack_nframes_t capture_frame_latency; - jack_nframes_t playback_frame_latency; - - unsigned long *silent; - char *alsa_name_playback; - char *alsa_name_capture; - char *alsa_driver; - bitset_t channels_not_done; - bitset_t channels_done; - snd_pcm_format_t playback_sample_format; - snd_pcm_format_t capture_sample_format; - float max_sample_val; - unsigned long user_nperiods; - unsigned int playback_nperiods; - unsigned int capture_nperiods; - unsigned long last_mask; - snd_ctl_t *ctl_handle; - snd_pcm_t *playback_handle; - snd_pcm_t *capture_handle; - snd_pcm_hw_params_t *playback_hw_params; - snd_pcm_sw_params_t *playback_sw_params; - snd_pcm_hw_params_t *capture_hw_params; - snd_pcm_sw_params_t *capture_sw_params; - jack_hardware_t *hw; - ClockSyncStatus *clock_sync_data; - jack_client_t *client; - JSList *capture_ports; - JSList *playback_ports; - JSList *monitor_ports; - - unsigned long input_monitor_mask; - - char soft_mode; - char hw_monitoring; - char hw_metering; - char all_monitor_in; - char capture_and_playback_not_synced; - char playback_interleaved; - char capture_interleaved; - char with_monitor_ports; - char has_clock_sync_reporting; - char has_hw_monitoring; - char has_hw_metering; - char quirk_bswap; - - ReadCopyFunction read_via_copy; - WriteCopyFunction write_via_copy; - - int dither; - dither_state_t *dither_state; - - SampleClockMode clock_mode; - JSList *clock_sync_listeners; - pthread_mutex_t clock_sync_lock; - unsigned long next_clock_sync_listener_id; - - int running; - int run; - - int poll_late; - int xrun_count; - int process_count; - - int xrun_recovery; - int previously_successfully_configured; + JACK_DRIVER_NT_DECL + + int poll_timeout; + jack_time_t poll_last; + jack_time_t poll_next; + char **playback_addr; + char **capture_addr; + const snd_pcm_channel_area_t *capture_areas; + const snd_pcm_channel_area_t *playback_areas; + struct pollfd *pfd; + unsigned int playback_nfds; + unsigned int capture_nfds; + unsigned long interleave_unit; + unsigned long *capture_interleave_skip; + unsigned long *playback_interleave_skip; + channel_t max_nchannels; + channel_t user_nchannels; + channel_t playback_nchannels; + channel_t capture_nchannels; + unsigned long playback_sample_bytes; + unsigned long capture_sample_bytes; + + jack_nframes_t frame_rate; + jack_nframes_t frames_per_cycle; + jack_nframes_t capture_frame_latency; + jack_nframes_t playback_frame_latency; + + unsigned long *silent; + char *alsa_name_playback; + char *alsa_name_capture; + char *alsa_driver; + bitset_t channels_not_done; + bitset_t channels_done; + snd_pcm_format_t playback_sample_format; + snd_pcm_format_t capture_sample_format; + float max_sample_val; + unsigned long user_nperiods; + unsigned int playback_nperiods; + unsigned int capture_nperiods; + unsigned long last_mask; + snd_ctl_t *ctl_handle; + snd_pcm_t *playback_handle; + snd_pcm_t *capture_handle; + snd_pcm_hw_params_t *playback_hw_params; + snd_pcm_sw_params_t *playback_sw_params; + snd_pcm_hw_params_t *capture_hw_params; + snd_pcm_sw_params_t *capture_sw_params; + jack_hardware_t *hw; + ClockSyncStatus *clock_sync_data; + jack_client_t *client; + JSList *capture_ports; + JSList *playback_ports; + JSList *monitor_ports; + + unsigned long input_monitor_mask; + + char soft_mode; + char hw_monitoring; + char hw_metering; + char all_monitor_in; + char capture_and_playback_not_synced; + char playback_interleaved; + char capture_interleaved; + char with_monitor_ports; + char has_clock_sync_reporting; + char has_hw_monitoring; + char has_hw_metering; + char quirk_bswap; + + ReadCopyFunction read_via_copy; + WriteCopyFunction write_via_copy; + + int dither; + dither_state_t *dither_state; + + SampleClockMode clock_mode; + JSList *clock_sync_listeners; + pthread_mutex_t clock_sync_lock; + unsigned long next_clock_sync_listener_id; + + int running; + int run; + + int poll_late; + int xrun_count; + int process_count; + + int xrun_recovery; + int previously_successfully_configured; } alsa_driver_t; -static inline void -alsa_driver_mark_channel_done (alsa_driver_t *driver, channel_t chn) { +static inline void +alsa_driver_mark_channel_done (alsa_driver_t *driver, channel_t chn) +{ bitset_remove (driver->channels_not_done, chn); driver->silent[chn] = 0; } -static inline void +static inline void alsa_driver_silence_on_channel (alsa_driver_t *driver, channel_t chn, - jack_nframes_t nframes) { + jack_nframes_t nframes) +{ if (driver->playback_interleaved) { - memset_interleave + memset_interleave (driver->playback_addr[chn], - 0, nframes * driver->playback_sample_bytes, - driver->interleave_unit, - driver->playback_interleave_skip[chn]); + 0, nframes * driver->playback_sample_bytes, + driver->interleave_unit, + driver->playback_interleave_skip[chn]); } else { memset (driver->playback_addr[chn], 0, nframes * driver->playback_sample_bytes); } - alsa_driver_mark_channel_done (driver,chn); + alsa_driver_mark_channel_done (driver, chn); } -static inline void +static inline void alsa_driver_silence_on_channel_no_mark (alsa_driver_t *driver, channel_t chn, - jack_nframes_t nframes) { + jack_nframes_t nframes) +{ if (driver->playback_interleaved) { - memset_interleave + memset_interleave (driver->playback_addr[chn], - 0, nframes * driver->playback_sample_bytes, - driver->interleave_unit, - driver->playback_interleave_skip[chn]); + 0, nframes * driver->playback_sample_bytes, + driver->interleave_unit, + driver->playback_interleave_skip[chn]); } else { memset (driver->playback_addr[chn], 0, nframes * driver->playback_sample_bytes); } } -static inline void +static inline void alsa_driver_read_from_channel (alsa_driver_t *driver, channel_t channel, jack_default_audio_sample_t *buf, jack_nframes_t nsamples) { - driver->read_via_copy (buf, + driver->read_via_copy (buf, driver->capture_addr[channel], - nsamples, + nsamples, driver->capture_interleave_skip[channel]); } -static inline void +static inline void alsa_driver_write_to_channel (alsa_driver_t *driver, - channel_t channel, - jack_default_audio_sample_t *buf, + channel_t channel, + jack_default_audio_sample_t *buf, jack_nframes_t nsamples) { driver->write_via_copy (driver->playback_addr[channel], - buf, - nsamples, + buf, + nsamples, driver->playback_interleave_skip[channel], - driver->dither_state+channel); + driver->dither_state + channel); alsa_driver_mark_channel_done (driver, channel); } -void alsa_driver_silence_untouched_channels (alsa_driver_t *driver, - jack_nframes_t nframes); -void alsa_driver_set_clock_sync_status (alsa_driver_t *driver, channel_t chn, - ClockSyncStatus status); -int alsa_driver_listen_for_clock_sync_status (alsa_driver_t *, - ClockSyncListenerFunction, - void *arg); -int alsa_driver_stop_listen_for_clock_sync_status (alsa_driver_t *, - unsigned int); -void alsa_driver_clock_sync_notify (alsa_driver_t *, channel_t chn, - ClockSyncStatus); +void alsa_driver_silence_untouched_channels(alsa_driver_t *driver, + jack_nframes_t nframes); +void alsa_driver_set_clock_sync_status(alsa_driver_t *driver, channel_t chn, + ClockSyncStatus status); +int alsa_driver_listen_for_clock_sync_status (alsa_driver_t *, + ClockSyncListenerFunction, + void *arg); +int alsa_driver_stop_listen_for_clock_sync_status(alsa_driver_t *, + unsigned int); +void alsa_driver_clock_sync_notify (alsa_driver_t *, channel_t chn, + ClockSyncStatus); #endif /* __jack_alsa_driver_h__ */ |