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-rw-r--r--pluginhost~/include/alsa/seq_event.h452
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-/**
- * \file include/seq_event.h
- * \brief Application interface library for the ALSA driver
- * \author Jaroslav Kysela <perex@suse.cz>
- * \author Abramo Bagnara <abramo@alsa-project.org>
- * \author Takashi Iwai <tiwai@suse.de>
- * \date 1998-2001
- *
- * Application interface library for the ALSA driver
- */
-/*
- * This library is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 2.1 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#ifndef __ALSA_SEQ_EVENT_H
-#define __ALSA_SEQ_EVENT_H
-
-/**
- * \defgroup SeqEvents Sequencer Event Definitions
- * Sequencer Event Definitions
- * \ingroup Sequencer
- * \{
- */
-
-/**
- * Sequencer event data type
- */
-typedef unsigned char snd_seq_event_type_t;
-
-/** Sequencer event type */
-enum snd_seq_event_type {
- /** system status; event data type = #snd_seq_result_t */
- SND_SEQ_EVENT_SYSTEM = 0,
- /** returned result status; event data type = #snd_seq_result_t */
- SND_SEQ_EVENT_RESULT,
-
- /** note on and off with duration; event data type = #snd_seq_ev_note_t */
- SND_SEQ_EVENT_NOTE = 5,
- /** note on; event data type = #snd_seq_ev_note_t */
- SND_SEQ_EVENT_NOTEON,
- /** note off; event data type = #snd_seq_ev_note_t */
- SND_SEQ_EVENT_NOTEOFF,
- /** key pressure change (aftertouch); event data type = #snd_seq_ev_note_t */
- SND_SEQ_EVENT_KEYPRESS,
-
- /** controller; event data type = #snd_seq_ev_ctrl_t */
- SND_SEQ_EVENT_CONTROLLER = 10,
- /** program change; event data type = #snd_seq_ev_ctrl_t */
- SND_SEQ_EVENT_PGMCHANGE,
- /** channel pressure; event data type = #snd_seq_ev_ctrl_t */
- SND_SEQ_EVENT_CHANPRESS,
- /** pitchwheel; event data type = #snd_seq_ev_ctrl_t; data is from -8192 to 8191) */
- SND_SEQ_EVENT_PITCHBEND,
- /** 14 bit controller value; event data type = #snd_seq_ev_ctrl_t */
- SND_SEQ_EVENT_CONTROL14,
- /** 14 bit NRPN; event data type = #snd_seq_ev_ctrl_t */
- SND_SEQ_EVENT_NONREGPARAM,
- /** 14 bit RPN; event data type = #snd_seq_ev_ctrl_t */
- SND_SEQ_EVENT_REGPARAM,
-
- /** SPP with LSB and MSB values; event data type = #snd_seq_ev_ctrl_t */
- SND_SEQ_EVENT_SONGPOS = 20,
- /** Song Select with song ID number; event data type = #snd_seq_ev_ctrl_t */
- SND_SEQ_EVENT_SONGSEL,
- /** midi time code quarter frame; event data type = #snd_seq_ev_ctrl_t */
- SND_SEQ_EVENT_QFRAME,
- /** SMF Time Signature event; event data type = #snd_seq_ev_ctrl_t */
- SND_SEQ_EVENT_TIMESIGN,
- /** SMF Key Signature event; event data type = #snd_seq_ev_ctrl_t */
- SND_SEQ_EVENT_KEYSIGN,
-
- /** MIDI Real Time Start message; event data type = #snd_seq_ev_queue_control_t */
- SND_SEQ_EVENT_START = 30,
- /** MIDI Real Time Continue message; event data type = #snd_seq_ev_queue_control_t */
- SND_SEQ_EVENT_CONTINUE,
- /** MIDI Real Time Stop message; event data type = #snd_seq_ev_queue_control_t */
- SND_SEQ_EVENT_STOP,
- /** Set tick queue position; event data type = #snd_seq_ev_queue_control_t */
- SND_SEQ_EVENT_SETPOS_TICK,
- /** Set real-time queue position; event data type = #snd_seq_ev_queue_control_t */
- SND_SEQ_EVENT_SETPOS_TIME,
- /** (SMF) Tempo event; event data type = #snd_seq_ev_queue_control_t */
- SND_SEQ_EVENT_TEMPO,
- /** MIDI Real Time Clock message; event data type = #snd_seq_ev_queue_control_t */
- SND_SEQ_EVENT_CLOCK,
- /** MIDI Real Time Tick message; event data type = #snd_seq_ev_queue_control_t */
- SND_SEQ_EVENT_TICK,
- /** Queue timer skew; event data type = #snd_seq_ev_queue_control_t */
- SND_SEQ_EVENT_QUEUE_SKEW,
- /** Sync position changed; event data type = #snd_seq_ev_queue_control_t */
- SND_SEQ_EVENT_SYNC_POS,
-
- /** Tune request; event data type = none */
- SND_SEQ_EVENT_TUNE_REQUEST = 40,
- /** Reset to power-on state; event data type = none */
- SND_SEQ_EVENT_RESET,
- /** Active sensing event; event data type = none */
- SND_SEQ_EVENT_SENSING,
-
- /** Echo-back event; event data type = any type */
- SND_SEQ_EVENT_ECHO = 50,
- /** OSS emulation raw event; event data type = any type */
- SND_SEQ_EVENT_OSS,
-
- /** New client has connected; event data type = #snd_seq_addr_t */
- SND_SEQ_EVENT_CLIENT_START = 60,
- /** Client has left the system; event data type = #snd_seq_addr_t */
- SND_SEQ_EVENT_CLIENT_EXIT,
- /** Client status/info has changed; event data type = #snd_seq_addr_t */
- SND_SEQ_EVENT_CLIENT_CHANGE,
- /** New port was created; event data type = #snd_seq_addr_t */
- SND_SEQ_EVENT_PORT_START,
- /** Port was deleted from system; event data type = #snd_seq_addr_t */
- SND_SEQ_EVENT_PORT_EXIT,
- /** Port status/info has changed; event data type = #snd_seq_addr_t */
- SND_SEQ_EVENT_PORT_CHANGE,
-
- /** Ports connected; event data type = #snd_seq_connect_t */
- SND_SEQ_EVENT_PORT_SUBSCRIBED,
- /** Ports disconnected; event data type = #snd_seq_connect_t */
- SND_SEQ_EVENT_PORT_UNSUBSCRIBED,
-
- /** Sample select; event data type = #snd_seq_ev_sample_control_t */
- SND_SEQ_EVENT_SAMPLE = 70,
- /** Sample cluster select; event data type = #snd_seq_ev_sample_control_t */
- SND_SEQ_EVENT_SAMPLE_CLUSTER,
- /** voice start */
- SND_SEQ_EVENT_SAMPLE_START,
- /** voice stop */
- SND_SEQ_EVENT_SAMPLE_STOP,
- /** playback frequency */
- SND_SEQ_EVENT_SAMPLE_FREQ,
- /** volume and balance */
- SND_SEQ_EVENT_SAMPLE_VOLUME,
- /** sample loop */
- SND_SEQ_EVENT_SAMPLE_LOOP,
- /** sample position */
- SND_SEQ_EVENT_SAMPLE_POSITION,
- /** private (hardware dependent) event */
- SND_SEQ_EVENT_SAMPLE_PRIVATE1,
-
- /** user-defined event; event data type = any (fixed size) */
- SND_SEQ_EVENT_USR0 = 90,
- /** user-defined event; event data type = any (fixed size) */
- SND_SEQ_EVENT_USR1,
- /** user-defined event; event data type = any (fixed size) */
- SND_SEQ_EVENT_USR2,
- /** user-defined event; event data type = any (fixed size) */
- SND_SEQ_EVENT_USR3,
- /** user-defined event; event data type = any (fixed size) */
- SND_SEQ_EVENT_USR4,
- /** user-defined event; event data type = any (fixed size) */
- SND_SEQ_EVENT_USR5,
- /** user-defined event; event data type = any (fixed size) */
- SND_SEQ_EVENT_USR6,
- /** user-defined event; event data type = any (fixed size) */
- SND_SEQ_EVENT_USR7,
- /** user-defined event; event data type = any (fixed size) */
- SND_SEQ_EVENT_USR8,
- /** user-defined event; event data type = any (fixed size) */
- SND_SEQ_EVENT_USR9,
-
- /** begin of instrument management */
- SND_SEQ_EVENT_INSTR_BEGIN = 100,
- /** end of instrument management */
- SND_SEQ_EVENT_INSTR_END,
- /** query instrument interface info */
- SND_SEQ_EVENT_INSTR_INFO,
- /** result of instrument interface info */
- SND_SEQ_EVENT_INSTR_INFO_RESULT,
- /** query instrument format info */
- SND_SEQ_EVENT_INSTR_FINFO,
- /** result of instrument format info */
- SND_SEQ_EVENT_INSTR_FINFO_RESULT,
- /** reset instrument instrument memory */
- SND_SEQ_EVENT_INSTR_RESET,
- /** get instrument interface status */
- SND_SEQ_EVENT_INSTR_STATUS,
- /** result of instrument interface status */
- SND_SEQ_EVENT_INSTR_STATUS_RESULT,
- /** put an instrument to port */
- SND_SEQ_EVENT_INSTR_PUT,
- /** get an instrument from port */
- SND_SEQ_EVENT_INSTR_GET,
- /** result of instrument query */
- SND_SEQ_EVENT_INSTR_GET_RESULT,
- /** free instrument(s) */
- SND_SEQ_EVENT_INSTR_FREE,
- /** get instrument list */
- SND_SEQ_EVENT_INSTR_LIST,
- /** result of instrument list */
- SND_SEQ_EVENT_INSTR_LIST_RESULT,
- /** set cluster parameters */
- SND_SEQ_EVENT_INSTR_CLUSTER,
- /** get cluster parameters */
- SND_SEQ_EVENT_INSTR_CLUSTER_GET,
- /** result of cluster parameters */
- SND_SEQ_EVENT_INSTR_CLUSTER_RESULT,
- /** instrument change */
- SND_SEQ_EVENT_INSTR_CHANGE,
-
- /** system exclusive data (variable length); event data type = #snd_seq_ev_ext_t */
- SND_SEQ_EVENT_SYSEX = 130,
- /** error event; event data type = #snd_seq_ev_ext_t */
- SND_SEQ_EVENT_BOUNCE,
- /** reserved for user apps; event data type = #snd_seq_ev_ext_t */
- SND_SEQ_EVENT_USR_VAR0 = 135,
- /** reserved for user apps; event data type = #snd_seq_ev_ext_t */
- SND_SEQ_EVENT_USR_VAR1,
- /** reserved for user apps; event data type = #snd_seq_ev_ext_t */
- SND_SEQ_EVENT_USR_VAR2,
- /** reserved for user apps; event data type = #snd_seq_ev_ext_t */
- SND_SEQ_EVENT_USR_VAR3,
- /** reserved for user apps; event data type = #snd_seq_ev_ext_t */
- SND_SEQ_EVENT_USR_VAR4,
-
- /** NOP; ignored in any case */
- SND_SEQ_EVENT_NONE = 255
-};
-
-
-/** Sequencer event address */
-typedef struct snd_seq_addr {
- unsigned char client; /**< Client id */
- unsigned char port; /**< Port id */
-} snd_seq_addr_t;
-
-/** Connection (subscription) between ports */
-typedef struct snd_seq_connect {
- snd_seq_addr_t sender; /**< sender address */
- snd_seq_addr_t dest; /**< destination address */
-} snd_seq_connect_t;
-
-
-/** Real-time data record */
-typedef struct snd_seq_real_time {
- unsigned int tv_sec; /**< seconds */
- unsigned int tv_nsec; /**< nanoseconds */
-} snd_seq_real_time_t;
-
-/** (MIDI) Tick-time data record */
-typedef unsigned int snd_seq_tick_time_t;
-
-/** unioned time stamp */
-typedef union snd_seq_timestamp {
- snd_seq_tick_time_t tick; /**< tick-time */
- struct snd_seq_real_time time; /**< real-time */
-} snd_seq_timestamp_t;
-
-
-/**
- * Event mode flags
- *
- * NOTE: only 8 bits available!
- */
-#define SND_SEQ_TIME_STAMP_TICK (0<<0) /**< timestamp in clock ticks */
-#define SND_SEQ_TIME_STAMP_REAL (1<<0) /**< timestamp in real time */
-#define SND_SEQ_TIME_STAMP_MASK (1<<0) /**< mask for timestamp bits */
-
-#define SND_SEQ_TIME_MODE_ABS (0<<1) /**< absolute timestamp */
-#define SND_SEQ_TIME_MODE_REL (1<<1) /**< relative to current time */
-#define SND_SEQ_TIME_MODE_MASK (1<<1) /**< mask for time mode bits */
-
-#define SND_SEQ_EVENT_LENGTH_FIXED (0<<2) /**< fixed event size */
-#define SND_SEQ_EVENT_LENGTH_VARIABLE (1<<2) /**< variable event size */
-#define SND_SEQ_EVENT_LENGTH_VARUSR (2<<2) /**< variable event size - user memory space */
-#define SND_SEQ_EVENT_LENGTH_MASK (3<<2) /**< mask for event length bits */
-
-#define SND_SEQ_PRIORITY_NORMAL (0<<4) /**< normal priority */
-#define SND_SEQ_PRIORITY_HIGH (1<<4) /**< event should be processed before others */
-#define SND_SEQ_PRIORITY_MASK (1<<4) /**< mask for priority bits */
-
-
-/** Note event */
-typedef struct snd_seq_ev_note {
- unsigned char channel; /**< channel number */
- unsigned char note; /**< note */
- unsigned char velocity; /**< velocity */
- unsigned char off_velocity; /**< note-off velocity; only for #SND_SEQ_EVENT_NOTE */
- unsigned int duration; /**< duration until note-off; only for #SND_SEQ_EVENT_NOTE */
-} snd_seq_ev_note_t;
-
-/** Controller event */
-typedef struct snd_seq_ev_ctrl {
- unsigned char channel; /**< channel number */
- unsigned char unused[3]; /**< reserved */
- unsigned int param; /**< control parameter */
- signed int value; /**< control value */
-} snd_seq_ev_ctrl_t;
-
-/** generic set of bytes (12x8 bit) */
-typedef struct snd_seq_ev_raw8 {
- unsigned char d[12]; /**< 8 bit value */
-} snd_seq_ev_raw8_t;
-
-/** generic set of integers (3x32 bit) */
-typedef struct snd_seq_ev_raw32 {
- unsigned int d[3]; /**< 32 bit value */
-} snd_seq_ev_raw32_t;
-
-/** external stored data */
-typedef struct snd_seq_ev_ext {
- unsigned int len; /**< length of data */
- void *ptr; /**< pointer to data (note: can be 64-bit) */
-} __attribute__((packed)) snd_seq_ev_ext_t;
-
-/** Instrument cluster type */
-typedef unsigned int snd_seq_instr_cluster_t;
-
-/** Instrument type */
-typedef struct snd_seq_instr {
- snd_seq_instr_cluster_t cluster; /**< cluster id */
- unsigned int std; /**< instrument standard id; the upper byte means a private instrument (owner - client id) */
- unsigned short bank; /**< instrument bank id */
- unsigned short prg; /**< instrument program id */
-} snd_seq_instr_t;
-
-/** sample number */
-typedef struct snd_seq_ev_sample {
- unsigned int std; /**< sample standard id */
- unsigned short bank; /**< sample bank id */
- unsigned short prg; /**< sample program id */
-} snd_seq_ev_sample_t;
-
-/** sample cluster */
-typedef struct snd_seq_ev_cluster {
- snd_seq_instr_cluster_t cluster; /**< cluster id */
-} snd_seq_ev_cluster_t;
-
-/** sample position */
-typedef unsigned int snd_seq_position_t; /**< playback position (in samples) * 16 */
-
-/** sample stop mode */
-typedef enum snd_seq_stop_mode {
- SND_SEQ_SAMPLE_STOP_IMMEDIATELY = 0, /**< terminate playing immediately */
- SND_SEQ_SAMPLE_STOP_VENVELOPE = 1, /**< finish volume envelope */
- SND_SEQ_SAMPLE_STOP_LOOP = 2 /**< terminate loop and finish wave */
-} snd_seq_stop_mode_t;
-
-/** sample frequency */
-typedef int snd_seq_frequency_t; /**< playback frequency in HZ * 16 */
-
-/** sample volume control; if any value is set to -1 == do not change */
-typedef struct snd_seq_ev_volume {
- signed short volume; /**< range: 0-16383 */
- signed short lr; /**< left-right balance; range: 0-16383 */
- signed short fr; /**< front-rear balance; range: 0-16383 */
- signed short du; /**< down-up balance; range: 0-16383 */
-} snd_seq_ev_volume_t;
-
-/** simple loop redefinition */
-typedef struct snd_seq_ev_loop {
- unsigned int start; /**< loop start (in samples) * 16 */
- unsigned int end; /**< loop end (in samples) * 16 */
-} snd_seq_ev_loop_t;
-
-/** Sample control events */
-typedef struct snd_seq_ev_sample_control {
- unsigned char channel; /**< channel */
- unsigned char unused[3]; /**< reserved */
- union {
- snd_seq_ev_sample_t sample; /**< sample number */
- snd_seq_ev_cluster_t cluster; /**< cluster number */
- snd_seq_position_t position; /**< position */
- snd_seq_stop_mode_t stop_mode; /**< stop mode */
- snd_seq_frequency_t frequency; /**< frequency */
- snd_seq_ev_volume_t volume; /**< volume */
- snd_seq_ev_loop_t loop; /**< loop control */
- unsigned char raw8[8]; /**< raw 8-bit */
- } param; /**< control parameters */
-} snd_seq_ev_sample_control_t;
-
-
-
-/** INSTR_BEGIN event */
-typedef struct snd_seq_ev_instr_begin {
- int timeout; /**< zero = forever, otherwise timeout in ms */
-} snd_seq_ev_instr_begin_t;
-
-/** Result events */
-typedef struct snd_seq_result {
- int event; /**< processed event type */
- int result; /**< status */
-} snd_seq_result_t;
-
-/** Queue skew values */
-typedef struct snd_seq_queue_skew {
- unsigned int value; /**< skew value */
- unsigned int base; /**< skew base */
-} snd_seq_queue_skew_t;
-
-/** queue timer control */
-typedef struct snd_seq_ev_queue_control {
- unsigned char queue; /**< affected queue */
- unsigned char unused[3]; /**< reserved */
- union {
- signed int value; /**< affected value (e.g. tempo) */
- snd_seq_timestamp_t time; /**< time */
- unsigned int position; /**< sync position */
- snd_seq_queue_skew_t skew; /**< queue skew */
- unsigned int d32[2]; /**< any data */
- unsigned char d8[8]; /**< any data */
- } param; /**< data value union */
-} snd_seq_ev_queue_control_t;
-
-
-/** Sequencer event */
-typedef struct snd_seq_event {
- snd_seq_event_type_t type; /**< event type */
- unsigned char flags; /**< event flags */
- unsigned char tag; /**< tag */
-
- unsigned char queue; /**< schedule queue */
- snd_seq_timestamp_t time; /**< schedule time */
-
- snd_seq_addr_t source; /**< source address */
- snd_seq_addr_t dest; /**< destination address */
-
- union {
- snd_seq_ev_note_t note; /**< note information */
- snd_seq_ev_ctrl_t control; /**< MIDI control information */
- snd_seq_ev_raw8_t raw8; /**< raw8 data */
- snd_seq_ev_raw32_t raw32; /**< raw32 data */
- snd_seq_ev_ext_t ext; /**< external data */
- snd_seq_ev_queue_control_t queue; /**< queue control */
- snd_seq_timestamp_t time; /**< timestamp */
- snd_seq_addr_t addr; /**< address */
- snd_seq_connect_t connect; /**< connect information */
- snd_seq_result_t result; /**< operation result code */
- snd_seq_ev_instr_begin_t instr_begin; /**< instrument */
- snd_seq_ev_sample_control_t sample; /**< sample control */
- } data; /**< event data... */
-} snd_seq_event_t;
-
-
-/** \} */
-
-#endif /* __ALSA_SEQ_EVENT_H */
-