seq.h

socle開發板 移植Picture_Wave套件 可在螢幕上顯示照片並利用觸碰螢幕方式移動 kernel-2.6.19 crosstool-gcc-3.4.5

	SND_ALLOCA(snd_seq_queue_timer, ptr)
int snd_seq_queue_timer_malloc(snd_seq_queue_timer_t **ptr);
void snd_seq_queue_timer_free(snd_seq_queue_timer_t *ptr);
void snd_seq_queue_timer_copy(snd_seq_queue_timer_t *dst, const snd_seq_queue_timer_t *src);

int snd_seq_queue_timer_get_queue(const snd_seq_queue_timer_t *info);
snd_seq_queue_timer_type_t snd_seq_queue_timer_get_type(const snd_seq_queue_timer_t *info);
const snd_timer_id_t *snd_seq_queue_timer_get_id(const snd_seq_queue_timer_t *info);
unsigned int snd_seq_queue_timer_get_resolution(const snd_seq_queue_timer_t *info);

void snd_seq_queue_timer_set_type(snd_seq_queue_timer_t *info, snd_seq_queue_timer_type_t type);
void snd_seq_queue_timer_set_id(snd_seq_queue_timer_t *info, const snd_timer_id_t *id);
void snd_seq_queue_timer_set_resolution(snd_seq_queue_timer_t *info, unsigned int resolution);

int snd_seq_get_queue_timer(snd_seq_t *handle, int q, snd_seq_queue_timer_t *timer);
int snd_seq_set_queue_timer(snd_seq_t *handle, int q, snd_seq_queue_timer_t *timer);

/** \} */

/**
 *  \defgroup SeqEvent Sequencer Event API
 *  Sequencer Event API
 *  \ingroup Sequencer
 *  \{
 */

int snd_seq_free_event(snd_seq_event_t *ev);
ssize_t snd_seq_event_length(snd_seq_event_t *ev);
int snd_seq_event_output(snd_seq_t *handle, snd_seq_event_t *ev);
int snd_seq_event_output_buffer(snd_seq_t *handle, snd_seq_event_t *ev);
int snd_seq_event_output_direct(snd_seq_t *handle, snd_seq_event_t *ev);
int snd_seq_event_input(snd_seq_t *handle, snd_seq_event_t **ev);
int snd_seq_event_input_pending(snd_seq_t *seq, int fetch_sequencer);
int snd_seq_drain_output(snd_seq_t *handle);
int snd_seq_event_output_pending(snd_seq_t *seq);
int snd_seq_extract_output(snd_seq_t *handle, snd_seq_event_t **ev);
int snd_seq_drop_output(snd_seq_t *handle);
int snd_seq_drop_output_buffer(snd_seq_t *handle);
int snd_seq_drop_input(snd_seq_t *handle);
int snd_seq_drop_input_buffer(snd_seq_t *handle);

/** event removal conditionals */
typedef struct _snd_seq_remove_events snd_seq_remove_events_t;

/** Remove conditional flags */
#define SND_SEQ_REMOVE_INPUT		(1<<0)	/**< Flush input queues */
#define SND_SEQ_REMOVE_OUTPUT		(1<<1)	/**< Flush output queues */
#define SND_SEQ_REMOVE_DEST		(1<<2)	/**< Restrict by destination q:client:port */
#define SND_SEQ_REMOVE_DEST_CHANNEL	(1<<3)	/**< Restrict by channel */
#define SND_SEQ_REMOVE_TIME_BEFORE	(1<<4)	/**< Restrict to before time */
#define SND_SEQ_REMOVE_TIME_AFTER	(1<<5)	/**< Restrict to time or after */
#define SND_SEQ_REMOVE_TIME_TICK	(1<<6)	/**< Time is in ticks */
#define SND_SEQ_REMOVE_EVENT_TYPE	(1<<7)	/**< Restrict to event type */
#define SND_SEQ_REMOVE_IGNORE_OFF 	(1<<8)	/**< Do not flush off events */
#define SND_SEQ_REMOVE_TAG_MATCH 	(1<<9)	/**< Restrict to events with given tag */

size_t snd_seq_remove_events_sizeof(void);
/** allocate a #snd_seq_remove_events_t container on stack */
#define snd_seq_remove_events_alloca(ptr) \
	SND_ALLOCA(snd_seq_remove_events, ptr)
int snd_seq_remove_events_malloc(snd_seq_remove_events_t **ptr);
void snd_seq_remove_events_free(snd_seq_remove_events_t *ptr);
void snd_seq_remove_events_copy(snd_seq_remove_events_t *dst, const snd_seq_remove_events_t *src);

unsigned int snd_seq_remove_events_get_condition(const snd_seq_remove_events_t *info);
int snd_seq_remove_events_get_queue(const snd_seq_remove_events_t *info);
const snd_seq_timestamp_t *snd_seq_remove_events_get_time(const snd_seq_remove_events_t *info);
const snd_seq_addr_t *snd_seq_remove_events_get_dest(const snd_seq_remove_events_t *info);
int snd_seq_remove_events_get_channel(const snd_seq_remove_events_t *info);
int snd_seq_remove_events_get_event_type(const snd_seq_remove_events_t *info);
int snd_seq_remove_events_get_tag(const snd_seq_remove_events_t *info);

void snd_seq_remove_events_set_condition(snd_seq_remove_events_t *info, unsigned int flags);
void snd_seq_remove_events_set_queue(snd_seq_remove_events_t *info, int queue);
void snd_seq_remove_events_set_time(snd_seq_remove_events_t *info, const snd_seq_timestamp_t *time);
void snd_seq_remove_events_set_dest(snd_seq_remove_events_t *info, const snd_seq_addr_t *addr);
void snd_seq_remove_events_set_channel(snd_seq_remove_events_t *info, int channel);
void snd_seq_remove_events_set_event_type(snd_seq_remove_events_t *info, int type);
void snd_seq_remove_events_set_tag(snd_seq_remove_events_t *info, int tag);

int snd_seq_remove_events(snd_seq_t *handle, snd_seq_remove_events_t *info);

/** \} */

/**
 *  \defgroup SeqMisc Sequencer Miscellaneous
 *  Sequencer Miscellaneous
 *  \ingroup Sequencer
 *  \{
 */

void snd_seq_set_bit(int nr, void *array);
int snd_seq_change_bit(int nr, void *array);
int snd_seq_get_bit(int nr, void *array);

/** \} */


/**
 *  \defgroup SeqEvType Sequencer Event Type Checks
 *  Sequencer Event Type Checks
 *  \ingroup Sequencer
 *  \{
 */

/* event type macros */
enum {
	SND_SEQ_EVFLG_RESULT,
	SND_SEQ_EVFLG_NOTE,
	SND_SEQ_EVFLG_CONTROL,
	SND_SEQ_EVFLG_QUEUE,
	SND_SEQ_EVFLG_SYSTEM,
	SND_SEQ_EVFLG_MESSAGE,
	SND_SEQ_EVFLG_CONNECTION,
	SND_SEQ_EVFLG_SAMPLE,
	SND_SEQ_EVFLG_USERS,
	SND_SEQ_EVFLG_INSTR,
	SND_SEQ_EVFLG_QUOTE,
	SND_SEQ_EVFLG_NONE,
	SND_SEQ_EVFLG_RAW,
	SND_SEQ_EVFLG_FIXED,
	SND_SEQ_EVFLG_VARIABLE,
	SND_SEQ_EVFLG_VARUSR
};

enum {
	SND_SEQ_EVFLG_NOTE_ONEARG,
	SND_SEQ_EVFLG_NOTE_TWOARG
};

enum {
	SND_SEQ_EVFLG_QUEUE_NOARG,
	SND_SEQ_EVFLG_QUEUE_TICK,
	SND_SEQ_EVFLG_QUEUE_TIME,
	SND_SEQ_EVFLG_QUEUE_VALUE
};

/**
 * Exported event type table
 *
 * This table is referred by snd_seq_ev_is_xxx.
 */
extern const unsigned int snd_seq_event_types[];

#define _SND_SEQ_TYPE(x)	(1<<(x))	/**< master type - 24bit */
#define _SND_SEQ_TYPE_OPT(x)	((x)<<24)	/**< optional type - 8bit */

/** check the event type */
#define snd_seq_type_check(ev,x) (snd_seq_event_types[(ev)->type] & _SND_SEQ_TYPE(x))

/** event type check: result events */
#define snd_seq_ev_is_result_type(ev) \
	snd_seq_type_check(ev, SND_SEQ_EVFLG_RESULT)
/** event type check: note events */
#define snd_seq_ev_is_note_type(ev) \
	snd_seq_type_check(ev, SND_SEQ_EVFLG_NOTE)
/** event type check: control events */
#define snd_seq_ev_is_control_type(ev) \
	snd_seq_type_check(ev, SND_SEQ_EVFLG_CONTROL)
/** event type check: channel specific events */
#define snd_seq_ev_is_channel_type(ev) \
	(snd_seq_event_types[(ev)->type] & (_SND_SEQ_TYPE(SND_SEQ_EVFLG_NOTE) | _SND_SEQ_TYPE(SND_SEQ_EVFLG_CONTROL)))

/** event type check: queue control events */
#define snd_seq_ev_is_queue_type(ev) \
	snd_seq_type_check(ev, SND_SEQ_EVFLG_QUEUE)
/** event type check: system status messages */
#define snd_seq_ev_is_message_type(ev) \
	snd_seq_type_check(ev, SND_SEQ_EVFLG_MESSAGE)
/** event type check: system status messages */
#define snd_seq_ev_is_subscribe_type(ev) \
	snd_seq_type_check(ev, SND_SEQ_EVFLG_CONNECTION)
/** event type check: sample messages */
#define snd_seq_ev_is_sample_type(ev) \
	snd_seq_type_check(ev, SND_SEQ_EVFLG_SAMPLE)
/** event type check: user-defined messages */
#define snd_seq_ev_is_user_type(ev) \
	snd_seq_type_check(ev, SND_SEQ_EVFLG_USERS)
/** event type check: instrument layer events */
#define snd_seq_ev_is_instr_type(ev) \
	snd_seq_type_check(ev, SND_SEQ_EVFLG_INSTR)
/** event type check: fixed length events */
#define snd_seq_ev_is_fixed_type(ev) \
	snd_seq_type_check(ev, SND_SEQ_EVFLG_FIXED)
/** event type check: variable length events */
#define snd_seq_ev_is_variable_type(ev)	\
	snd_seq_type_check(ev, SND_SEQ_EVFLG_VARIABLE)
/** event type check: user pointer events */
#define snd_seq_ev_is_varusr_type(ev) \
	snd_seq_type_check(ev, SND_SEQ_EVFLG_VARUSR)
/** event type check: reserved for kernel */
#define snd_seq_ev_is_reserved(ev) \
	(! snd_seq_event_types[(ev)->type])

/**
 * macros to check event flags
 */
/** prior events */
#define snd_seq_ev_is_prior(ev)	\
	(((ev)->flags & SND_SEQ_PRIORITY_MASK) == SND_SEQ_PRIORITY_HIGH)

/** get the data length type */
#define snd_seq_ev_length_type(ev) \
	((ev)->flags & SND_SEQ_EVENT_LENGTH_MASK)
/** fixed length events */
#define snd_seq_ev_is_fixed(ev)	\
	(snd_seq_ev_length_type(ev) == SND_SEQ_EVENT_LENGTH_FIXED)
/** variable length events */
#define snd_seq_ev_is_variable(ev) \
	(snd_seq_ev_length_type(ev) == SND_SEQ_EVENT_LENGTH_VARIABLE)
/** variable length on user-space */
#define snd_seq_ev_is_varusr(ev) \
	(snd_seq_ev_length_type(ev) == SND_SEQ_EVENT_LENGTH_VARUSR)

/** time-stamp type */
#define snd_seq_ev_timestamp_type(ev) \
	((ev)->flags & SND_SEQ_TIME_STAMP_MASK)
/** event is in tick time */
#define snd_seq_ev_is_tick(ev) \
	(snd_seq_ev_timestamp_type(ev) == SND_SEQ_TIME_STAMP_TICK)
/** event is in real-time */
#define snd_seq_ev_is_real(ev) \
	(snd_seq_ev_timestamp_type(ev) == SND_SEQ_TIME_STAMP_REAL)

/** time-mode type */
#define snd_seq_ev_timemode_type(ev) \
	((ev)->flags & SND_SEQ_TIME_MODE_MASK)
/** scheduled in absolute time */
#define snd_seq_ev_is_abstime(ev) \
	(snd_seq_ev_timemode_type(ev) == SND_SEQ_TIME_MODE_ABS)
/** scheduled in relative time */
#define snd_seq_ev_is_reltime(ev) \
	(snd_seq_ev_timemode_type(ev) == SND_SEQ_TIME_MODE_REL)

/** direct dispatched events */
#define snd_seq_ev_is_direct(ev) \
	((ev)->queue == SND_SEQ_QUEUE_DIRECT)

/** \} */

#ifdef __cplusplus
}
#endif

#endif /* __ALSA_SEQ_H */