annotate plugin/api/alsa/seq_event.h @ 429:6036b38177e2

* Fix crash when running Generator
author Chris Cannam
date Wed, 18 Jun 2008 13:40:10 +0000 (2008-06-18)
parents da6937383da8
children 6b847a59d908
rev   line source
Chris@0 1 /* DSSI ALSA compatibility library
Chris@0 2 *
Chris@0 3 * This library provides for Mac OS X the ALSA snd_seq_event_t handling
Chris@0 4 * necessary to compile and run DSSI. It was extracted from alsa-lib 1.0.8.
Chris@0 5 */
Chris@0 6
Chris@0 7 /**
Chris@0 8 * \file <alsa/seq_event.h>
Chris@0 9 * \brief Application interface library for the ALSA driver
Chris@0 10 * \author Jaroslav Kysela <perex@suse.cz>
Chris@0 11 * \author Abramo Bagnara <abramo@alsa-project.org>
Chris@0 12 * \author Takashi Iwai <tiwai@suse.de>
Chris@0 13 * \date 1998-2001
Chris@0 14 *
Chris@0 15 * Application interface library for the ALSA driver
Chris@0 16 *
Chris@0 17 *
Chris@0 18 * This library is free software; you can redistribute it and/or modify
Chris@0 19 * it under the terms of the GNU Lesser General Public License as
Chris@0 20 * published by the Free Software Foundation; either version 2.1 of
Chris@0 21 * the License, or (at your option) any later version.
Chris@0 22 *
Chris@0 23 * This program is distributed in the hope that it will be useful,
Chris@0 24 * but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@0 25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
Chris@0 26 * GNU Lesser General Public License for more details.
Chris@0 27 *
Chris@0 28 * You should have received a copy of the GNU Lesser General Public
Chris@0 29 * License along with this library; if not, write to the Free Software
Chris@0 30 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Chris@0 31 *
Chris@0 32 */
Chris@0 33
Chris@0 34 #ifndef __ALSA_SEQ_EVENT_H
Chris@0 35 #define __ALSA_SEQ_EVENT_H
Chris@0 36
Chris@0 37 /**
Chris@0 38 * \defgroup SeqEvents Sequencer Event Definitions
Chris@0 39 * Sequencer Event Definitions
Chris@0 40 * \ingroup Sequencer
Chris@0 41 * \{
Chris@0 42 */
Chris@0 43
Chris@0 44 /**
Chris@0 45 * Sequencer event data type
Chris@0 46 */
Chris@0 47 typedef unsigned char snd_seq_event_type_t;
Chris@0 48
Chris@0 49 /** Sequencer event type */
Chris@0 50 enum snd_seq_event_type {
Chris@0 51 /** system status; event data type = #snd_seq_result_t */
Chris@0 52 SND_SEQ_EVENT_SYSTEM = 0,
Chris@0 53 /** returned result status; event data type = #snd_seq_result_t */
Chris@0 54 SND_SEQ_EVENT_RESULT,
Chris@0 55
Chris@0 56 /** note on and off with duration; event data type = #snd_seq_ev_note_t */
Chris@0 57 SND_SEQ_EVENT_NOTE = 5,
Chris@0 58 /** note on; event data type = #snd_seq_ev_note_t */
Chris@0 59 SND_SEQ_EVENT_NOTEON,
Chris@0 60 /** note off; event data type = #snd_seq_ev_note_t */
Chris@0 61 SND_SEQ_EVENT_NOTEOFF,
Chris@0 62 /** key pressure change (aftertouch); event data type = #snd_seq_ev_note_t */
Chris@0 63 SND_SEQ_EVENT_KEYPRESS,
Chris@0 64
Chris@0 65 /** controller; event data type = #snd_seq_ev_ctrl_t */
Chris@0 66 SND_SEQ_EVENT_CONTROLLER = 10,
Chris@0 67 /** program change; event data type = #snd_seq_ev_ctrl_t */
Chris@0 68 SND_SEQ_EVENT_PGMCHANGE,
Chris@0 69 /** channel pressure; event data type = #snd_seq_ev_ctrl_t */
Chris@0 70 SND_SEQ_EVENT_CHANPRESS,
Chris@0 71 /** pitchwheel; event data type = #snd_seq_ev_ctrl_t; data is from -8192 to 8191) */
Chris@0 72 SND_SEQ_EVENT_PITCHBEND,
Chris@0 73 /** 14 bit controller value; event data type = #snd_seq_ev_ctrl_t */
Chris@0 74 SND_SEQ_EVENT_CONTROL14,
Chris@0 75 /** 14 bit NRPN; event data type = #snd_seq_ev_ctrl_t */
Chris@0 76 SND_SEQ_EVENT_NONREGPARAM,
Chris@0 77 /** 14 bit RPN; event data type = #snd_seq_ev_ctrl_t */
Chris@0 78 SND_SEQ_EVENT_REGPARAM,
Chris@0 79
Chris@0 80 /** SPP with LSB and MSB values; event data type = #snd_seq_ev_ctrl_t */
Chris@0 81 SND_SEQ_EVENT_SONGPOS = 20,
Chris@0 82 /** Song Select with song ID number; event data type = #snd_seq_ev_ctrl_t */
Chris@0 83 SND_SEQ_EVENT_SONGSEL,
Chris@0 84 /** midi time code quarter frame; event data type = #snd_seq_ev_ctrl_t */
Chris@0 85 SND_SEQ_EVENT_QFRAME,
Chris@0 86 /** SMF Time Signature event; event data type = #snd_seq_ev_ctrl_t */
Chris@0 87 SND_SEQ_EVENT_TIMESIGN,
Chris@0 88 /** SMF Key Signature event; event data type = #snd_seq_ev_ctrl_t */
Chris@0 89 SND_SEQ_EVENT_KEYSIGN,
Chris@0 90
Chris@0 91 /** MIDI Real Time Start message; event data type = #snd_seq_ev_queue_control_t */
Chris@0 92 SND_SEQ_EVENT_START = 30,
Chris@0 93 /** MIDI Real Time Continue message; event data type = #snd_seq_ev_queue_control_t */
Chris@0 94 SND_SEQ_EVENT_CONTINUE,
Chris@0 95 /** MIDI Real Time Stop message; event data type = #snd_seq_ev_queue_control_t */
Chris@0 96 SND_SEQ_EVENT_STOP,
Chris@0 97 /** Set tick queue position; event data type = #snd_seq_ev_queue_control_t */
Chris@0 98 SND_SEQ_EVENT_SETPOS_TICK,
Chris@0 99 /** Set real-time queue position; event data type = #snd_seq_ev_queue_control_t */
Chris@0 100 SND_SEQ_EVENT_SETPOS_TIME,
Chris@0 101 /** (SMF) Tempo event; event data type = #snd_seq_ev_queue_control_t */
Chris@0 102 SND_SEQ_EVENT_TEMPO,
Chris@0 103 /** MIDI Real Time Clock message; event data type = #snd_seq_ev_queue_control_t */
Chris@0 104 SND_SEQ_EVENT_CLOCK,
Chris@0 105 /** MIDI Real Time Tick message; event data type = #snd_seq_ev_queue_control_t */
Chris@0 106 SND_SEQ_EVENT_TICK,
Chris@0 107 /** Queue timer skew; event data type = #snd_seq_ev_queue_control_t */
Chris@0 108 SND_SEQ_EVENT_QUEUE_SKEW,
Chris@0 109 /** Sync position changed; event data type = #snd_seq_ev_queue_control_t */
Chris@0 110 SND_SEQ_EVENT_SYNC_POS,
Chris@0 111
Chris@0 112 /** Tune request; event data type = none */
Chris@0 113 SND_SEQ_EVENT_TUNE_REQUEST = 40,
Chris@0 114 /** Reset to power-on state; event data type = none */
Chris@0 115 SND_SEQ_EVENT_RESET,
Chris@0 116 /** Active sensing event; event data type = none */
Chris@0 117 SND_SEQ_EVENT_SENSING,
Chris@0 118
Chris@0 119 /** Echo-back event; event data type = any type */
Chris@0 120 SND_SEQ_EVENT_ECHO = 50,
Chris@0 121 /** OSS emulation raw event; event data type = any type */
Chris@0 122 SND_SEQ_EVENT_OSS,
Chris@0 123
Chris@0 124 /** New client has connected; event data type = #snd_seq_addr_t */
Chris@0 125 SND_SEQ_EVENT_CLIENT_START = 60,
Chris@0 126 /** Client has left the system; event data type = #snd_seq_addr_t */
Chris@0 127 SND_SEQ_EVENT_CLIENT_EXIT,
Chris@0 128 /** Client status/info has changed; event data type = #snd_seq_addr_t */
Chris@0 129 SND_SEQ_EVENT_CLIENT_CHANGE,
Chris@0 130 /** New port was created; event data type = #snd_seq_addr_t */
Chris@0 131 SND_SEQ_EVENT_PORT_START,
Chris@0 132 /** Port was deleted from system; event data type = #snd_seq_addr_t */
Chris@0 133 SND_SEQ_EVENT_PORT_EXIT,
Chris@0 134 /** Port status/info has changed; event data type = #snd_seq_addr_t */
Chris@0 135 SND_SEQ_EVENT_PORT_CHANGE,
Chris@0 136
Chris@0 137 /** Ports connected; event data type = #snd_seq_connect_t */
Chris@0 138 SND_SEQ_EVENT_PORT_SUBSCRIBED,
Chris@0 139 /** Ports disconnected; event data type = #snd_seq_connect_t */
Chris@0 140 SND_SEQ_EVENT_PORT_UNSUBSCRIBED,
Chris@0 141
Chris@0 142 /** Sample select; event data type = #snd_seq_ev_sample_control_t */
Chris@0 143 SND_SEQ_EVENT_SAMPLE = 70,
Chris@0 144 /** Sample cluster select; event data type = #snd_seq_ev_sample_control_t */
Chris@0 145 SND_SEQ_EVENT_SAMPLE_CLUSTER,
Chris@0 146 /** voice start */
Chris@0 147 SND_SEQ_EVENT_SAMPLE_START,
Chris@0 148 /** voice stop */
Chris@0 149 SND_SEQ_EVENT_SAMPLE_STOP,
Chris@0 150 /** playback frequency */
Chris@0 151 SND_SEQ_EVENT_SAMPLE_FREQ,
Chris@0 152 /** volume and balance */
Chris@0 153 SND_SEQ_EVENT_SAMPLE_VOLUME,
Chris@0 154 /** sample loop */
Chris@0 155 SND_SEQ_EVENT_SAMPLE_LOOP,
Chris@0 156 /** sample position */
Chris@0 157 SND_SEQ_EVENT_SAMPLE_POSITION,
Chris@0 158 /** private (hardware dependent) event */
Chris@0 159 SND_SEQ_EVENT_SAMPLE_PRIVATE1,
Chris@0 160
Chris@0 161 /** user-defined event; event data type = any (fixed size) */
Chris@0 162 SND_SEQ_EVENT_USR0 = 90,
Chris@0 163 /** user-defined event; event data type = any (fixed size) */
Chris@0 164 SND_SEQ_EVENT_USR1,
Chris@0 165 /** user-defined event; event data type = any (fixed size) */
Chris@0 166 SND_SEQ_EVENT_USR2,
Chris@0 167 /** user-defined event; event data type = any (fixed size) */
Chris@0 168 SND_SEQ_EVENT_USR3,
Chris@0 169 /** user-defined event; event data type = any (fixed size) */
Chris@0 170 SND_SEQ_EVENT_USR4,
Chris@0 171 /** user-defined event; event data type = any (fixed size) */
Chris@0 172 SND_SEQ_EVENT_USR5,
Chris@0 173 /** user-defined event; event data type = any (fixed size) */
Chris@0 174 SND_SEQ_EVENT_USR6,
Chris@0 175 /** user-defined event; event data type = any (fixed size) */
Chris@0 176 SND_SEQ_EVENT_USR7,
Chris@0 177 /** user-defined event; event data type = any (fixed size) */
Chris@0 178 SND_SEQ_EVENT_USR8,
Chris@0 179 /** user-defined event; event data type = any (fixed size) */
Chris@0 180 SND_SEQ_EVENT_USR9,
Chris@0 181
Chris@0 182 /** begin of instrument management */
Chris@0 183 SND_SEQ_EVENT_INSTR_BEGIN = 100,
Chris@0 184 /** end of instrument management */
Chris@0 185 SND_SEQ_EVENT_INSTR_END,
Chris@0 186 /** query instrument interface info */
Chris@0 187 SND_SEQ_EVENT_INSTR_INFO,
Chris@0 188 /** result of instrument interface info */
Chris@0 189 SND_SEQ_EVENT_INSTR_INFO_RESULT,
Chris@0 190 /** query instrument format info */
Chris@0 191 SND_SEQ_EVENT_INSTR_FINFO,
Chris@0 192 /** result of instrument format info */
Chris@0 193 SND_SEQ_EVENT_INSTR_FINFO_RESULT,
Chris@0 194 /** reset instrument instrument memory */
Chris@0 195 SND_SEQ_EVENT_INSTR_RESET,
Chris@0 196 /** get instrument interface status */
Chris@0 197 SND_SEQ_EVENT_INSTR_STATUS,
Chris@0 198 /** result of instrument interface status */
Chris@0 199 SND_SEQ_EVENT_INSTR_STATUS_RESULT,
Chris@0 200 /** put an instrument to port */
Chris@0 201 SND_SEQ_EVENT_INSTR_PUT,
Chris@0 202 /** get an instrument from port */
Chris@0 203 SND_SEQ_EVENT_INSTR_GET,
Chris@0 204 /** result of instrument query */
Chris@0 205 SND_SEQ_EVENT_INSTR_GET_RESULT,
Chris@0 206 /** free instrument(s) */
Chris@0 207 SND_SEQ_EVENT_INSTR_FREE,
Chris@0 208 /** get instrument list */
Chris@0 209 SND_SEQ_EVENT_INSTR_LIST,
Chris@0 210 /** result of instrument list */
Chris@0 211 SND_SEQ_EVENT_INSTR_LIST_RESULT,
Chris@0 212 /** set cluster parameters */
Chris@0 213 SND_SEQ_EVENT_INSTR_CLUSTER,
Chris@0 214 /** get cluster parameters */
Chris@0 215 SND_SEQ_EVENT_INSTR_CLUSTER_GET,
Chris@0 216 /** result of cluster parameters */
Chris@0 217 SND_SEQ_EVENT_INSTR_CLUSTER_RESULT,
Chris@0 218 /** instrument change */
Chris@0 219 SND_SEQ_EVENT_INSTR_CHANGE,
Chris@0 220
Chris@0 221 /** system exclusive data (variable length); event data type = #snd_seq_ev_ext_t */
Chris@0 222 SND_SEQ_EVENT_SYSEX = 130,
Chris@0 223 /** error event; event data type = #snd_seq_ev_ext_t */
Chris@0 224 SND_SEQ_EVENT_BOUNCE,
Chris@0 225 /** reserved for user apps; event data type = #snd_seq_ev_ext_t */
Chris@0 226 SND_SEQ_EVENT_USR_VAR0 = 135,
Chris@0 227 /** reserved for user apps; event data type = #snd_seq_ev_ext_t */
Chris@0 228 SND_SEQ_EVENT_USR_VAR1,
Chris@0 229 /** reserved for user apps; event data type = #snd_seq_ev_ext_t */
Chris@0 230 SND_SEQ_EVENT_USR_VAR2,
Chris@0 231 /** reserved for user apps; event data type = #snd_seq_ev_ext_t */
Chris@0 232 SND_SEQ_EVENT_USR_VAR3,
Chris@0 233 /** reserved for user apps; event data type = #snd_seq_ev_ext_t */
Chris@0 234 SND_SEQ_EVENT_USR_VAR4,
Chris@0 235
Chris@0 236 /** NOP; ignored in any case */
Chris@0 237 SND_SEQ_EVENT_NONE = 255
Chris@0 238 };
Chris@0 239
Chris@0 240
Chris@0 241 /** Sequencer event address */
Chris@0 242 typedef struct snd_seq_addr {
Chris@0 243 unsigned char client; /**< Client id */
Chris@0 244 unsigned char port; /**< Port id */
Chris@0 245 } snd_seq_addr_t;
Chris@0 246
Chris@0 247 /** Connection (subscription) between ports */
Chris@0 248 typedef struct snd_seq_connect {
Chris@0 249 snd_seq_addr_t sender; /**< sender address */
Chris@0 250 snd_seq_addr_t dest; /**< destination address */
Chris@0 251 } snd_seq_connect_t;
Chris@0 252
Chris@0 253
Chris@0 254 /** Real-time data record */
Chris@0 255 typedef struct snd_seq_real_time {
Chris@0 256 unsigned int tv_sec; /**< seconds */
Chris@0 257 unsigned int tv_nsec; /**< nanoseconds */
Chris@0 258 } snd_seq_real_time_t;
Chris@0 259
Chris@0 260 /** (MIDI) Tick-time data record */
Chris@0 261 typedef unsigned int snd_seq_tick_time_t;
Chris@0 262
Chris@0 263 /** unioned time stamp */
Chris@0 264 typedef union snd_seq_timestamp {
Chris@0 265 snd_seq_tick_time_t tick; /**< tick-time */
Chris@0 266 struct snd_seq_real_time time; /**< real-time */
Chris@0 267 } snd_seq_timestamp_t;
Chris@0 268
Chris@0 269
Chris@0 270 /**
Chris@0 271 * Event mode flags
Chris@0 272 *
Chris@0 273 * NOTE: only 8 bits available!
Chris@0 274 */
Chris@0 275 #define SND_SEQ_TIME_STAMP_TICK (0<<0) /**< timestamp in clock ticks */
Chris@0 276 #define SND_SEQ_TIME_STAMP_REAL (1<<0) /**< timestamp in real time */
Chris@0 277 #define SND_SEQ_TIME_STAMP_MASK (1<<0) /**< mask for timestamp bits */
Chris@0 278
Chris@0 279 #define SND_SEQ_TIME_MODE_ABS (0<<1) /**< absolute timestamp */
Chris@0 280 #define SND_SEQ_TIME_MODE_REL (1<<1) /**< relative to current time */
Chris@0 281 #define SND_SEQ_TIME_MODE_MASK (1<<1) /**< mask for time mode bits */
Chris@0 282
Chris@0 283 #define SND_SEQ_EVENT_LENGTH_FIXED (0<<2) /**< fixed event size */
Chris@0 284 #define SND_SEQ_EVENT_LENGTH_VARIABLE (1<<2) /**< variable event size */
Chris@0 285 #define SND_SEQ_EVENT_LENGTH_VARUSR (2<<2) /**< variable event size - user memory space */
Chris@0 286 #define SND_SEQ_EVENT_LENGTH_MASK (3<<2) /**< mask for event length bits */
Chris@0 287
Chris@0 288 #define SND_SEQ_PRIORITY_NORMAL (0<<4) /**< normal priority */
Chris@0 289 #define SND_SEQ_PRIORITY_HIGH (1<<4) /**< event should be processed before others */
Chris@0 290 #define SND_SEQ_PRIORITY_MASK (1<<4) /**< mask for priority bits */
Chris@0 291
Chris@0 292
Chris@0 293 /** Note event */
Chris@0 294 typedef struct snd_seq_ev_note {
Chris@0 295 unsigned char channel; /**< channel number */
Chris@0 296 unsigned char note; /**< note */
Chris@0 297 unsigned char velocity; /**< velocity */
Chris@0 298 unsigned char off_velocity; /**< note-off velocity; only for #SND_SEQ_EVENT_NOTE */
Chris@0 299 unsigned int duration; /**< duration until note-off; only for #SND_SEQ_EVENT_NOTE */
Chris@0 300 } snd_seq_ev_note_t;
Chris@0 301
Chris@0 302 /** Controller event */
Chris@0 303 typedef struct snd_seq_ev_ctrl {
Chris@0 304 unsigned char channel; /**< channel number */
Chris@0 305 unsigned char unused[3]; /**< reserved */
Chris@0 306 unsigned int param; /**< control parameter */
Chris@0 307 signed int value; /**< control value */
Chris@0 308 } snd_seq_ev_ctrl_t;
Chris@0 309
Chris@0 310 /** generic set of bytes (12x8 bit) */
Chris@0 311 typedef struct snd_seq_ev_raw8 {
Chris@0 312 unsigned char d[12]; /**< 8 bit value */
Chris@0 313 } snd_seq_ev_raw8_t;
Chris@0 314
Chris@0 315 /** generic set of integers (3x32 bit) */
Chris@0 316 typedef struct snd_seq_ev_raw32 {
Chris@0 317 unsigned int d[3]; /**< 32 bit value */
Chris@0 318 } snd_seq_ev_raw32_t;
Chris@0 319
Chris@0 320 /** external stored data */
Chris@0 321 typedef struct snd_seq_ev_ext {
Chris@0 322 unsigned int len; /**< length of data */
Chris@0 323 void *ptr; /**< pointer to data (note: can be 64-bit) */
Chris@0 324 } __attribute__((packed)) snd_seq_ev_ext_t;
Chris@0 325
Chris@0 326 /** Instrument cluster type */
Chris@0 327 typedef unsigned int snd_seq_instr_cluster_t;
Chris@0 328
Chris@0 329 /** Instrument type */
Chris@0 330 typedef struct snd_seq_instr {
Chris@0 331 snd_seq_instr_cluster_t cluster; /**< cluster id */
Chris@0 332 unsigned int std; /**< instrument standard id; the upper byte means a private instrument (owner - client id) */
Chris@0 333 unsigned short bank; /**< instrument bank id */
Chris@0 334 unsigned short prg; /**< instrument program id */
Chris@0 335 } snd_seq_instr_t;
Chris@0 336
Chris@0 337 /** sample number */
Chris@0 338 typedef struct snd_seq_ev_sample {
Chris@0 339 unsigned int std; /**< sample standard id */
Chris@0 340 unsigned short bank; /**< sample bank id */
Chris@0 341 unsigned short prg; /**< sample program id */
Chris@0 342 } snd_seq_ev_sample_t;
Chris@0 343
Chris@0 344 /** sample cluster */
Chris@0 345 typedef struct snd_seq_ev_cluster {
Chris@0 346 snd_seq_instr_cluster_t cluster; /**< cluster id */
Chris@0 347 } snd_seq_ev_cluster_t;
Chris@0 348
Chris@0 349 /** sample position */
Chris@0 350 typedef unsigned int snd_seq_position_t; /**< playback position (in samples) * 16 */
Chris@0 351
Chris@0 352 /** sample stop mode */
Chris@0 353 typedef enum snd_seq_stop_mode {
Chris@0 354 SND_SEQ_SAMPLE_STOP_IMMEDIATELY = 0, /**< terminate playing immediately */
Chris@0 355 SND_SEQ_SAMPLE_STOP_VENVELOPE = 1, /**< finish volume envelope */
Chris@0 356 SND_SEQ_SAMPLE_STOP_LOOP = 2 /**< terminate loop and finish wave */
Chris@0 357 } snd_seq_stop_mode_t;
Chris@0 358
Chris@0 359 /** sample frequency */
Chris@0 360 typedef int snd_seq_frequency_t; /**< playback frequency in HZ * 16 */
Chris@0 361
Chris@0 362 /** sample volume control; if any value is set to -1 == do not change */
Chris@0 363 typedef struct snd_seq_ev_volume {
Chris@0 364 signed short volume; /**< range: 0-16383 */
Chris@0 365 signed short lr; /**< left-right balance; range: 0-16383 */
Chris@0 366 signed short fr; /**< front-rear balance; range: 0-16383 */
Chris@0 367 signed short du; /**< down-up balance; range: 0-16383 */
Chris@0 368 } snd_seq_ev_volume_t;
Chris@0 369
Chris@0 370 /** simple loop redefinition */
Chris@0 371 typedef struct snd_seq_ev_loop {
Chris@0 372 unsigned int start; /**< loop start (in samples) * 16 */
Chris@0 373 unsigned int end; /**< loop end (in samples) * 16 */
Chris@0 374 } snd_seq_ev_loop_t;
Chris@0 375
Chris@0 376 /** Sample control events */
Chris@0 377 typedef struct snd_seq_ev_sample_control {
Chris@0 378 unsigned char channel; /**< channel */
Chris@0 379 unsigned char unused[3]; /**< reserved */
Chris@0 380 union {
Chris@0 381 snd_seq_ev_sample_t sample; /**< sample number */
Chris@0 382 snd_seq_ev_cluster_t cluster; /**< cluster number */
Chris@0 383 snd_seq_position_t position; /**< position */
Chris@0 384 snd_seq_stop_mode_t stop_mode; /**< stop mode */
Chris@0 385 snd_seq_frequency_t frequency; /**< frequency */
Chris@0 386 snd_seq_ev_volume_t volume; /**< volume */
Chris@0 387 snd_seq_ev_loop_t loop; /**< loop control */
Chris@0 388 unsigned char raw8[8]; /**< raw 8-bit */
Chris@0 389 } param; /**< control parameters */
Chris@0 390 } snd_seq_ev_sample_control_t;
Chris@0 391
Chris@0 392
Chris@0 393
Chris@0 394 /** INSTR_BEGIN event */
Chris@0 395 typedef struct snd_seq_ev_instr_begin {
Chris@0 396 int timeout; /**< zero = forever, otherwise timeout in ms */
Chris@0 397 } snd_seq_ev_instr_begin_t;
Chris@0 398
Chris@0 399 /** Result events */
Chris@0 400 typedef struct snd_seq_result {
Chris@0 401 int event; /**< processed event type */
Chris@0 402 int result; /**< status */
Chris@0 403 } snd_seq_result_t;
Chris@0 404
Chris@0 405 /** Queue skew values */
Chris@0 406 typedef struct snd_seq_queue_skew {
Chris@0 407 unsigned int value; /**< skew value */
Chris@0 408 unsigned int base; /**< skew base */
Chris@0 409 } snd_seq_queue_skew_t;
Chris@0 410
Chris@0 411 /** queue timer control */
Chris@0 412 typedef struct snd_seq_ev_queue_control {
Chris@0 413 unsigned char queue; /**< affected queue */
Chris@0 414 unsigned char unused[3]; /**< reserved */
Chris@0 415 union {
Chris@0 416 signed int value; /**< affected value (e.g. tempo) */
Chris@0 417 snd_seq_timestamp_t time; /**< time */
Chris@0 418 unsigned int position; /**< sync position */
Chris@0 419 snd_seq_queue_skew_t skew; /**< queue skew */
Chris@0 420 unsigned int d32[2]; /**< any data */
Chris@0 421 unsigned char d8[8]; /**< any data */
Chris@0 422 } param; /**< data value union */
Chris@0 423 } snd_seq_ev_queue_control_t;
Chris@0 424
Chris@0 425
Chris@0 426 /** Sequencer event */
Chris@0 427 typedef struct snd_seq_event {
Chris@0 428 snd_seq_event_type_t type; /**< event type */
Chris@0 429 unsigned char flags; /**< event flags */
Chris@0 430 unsigned char tag; /**< tag */
Chris@0 431
Chris@0 432 unsigned char queue; /**< schedule queue */
Chris@0 433 snd_seq_timestamp_t time; /**< schedule time */
Chris@0 434
Chris@0 435 snd_seq_addr_t source; /**< source address */
Chris@0 436 snd_seq_addr_t dest; /**< destination address */
Chris@0 437
Chris@0 438 union {
Chris@0 439 snd_seq_ev_note_t note; /**< note information */
Chris@0 440 snd_seq_ev_ctrl_t control; /**< MIDI control information */
Chris@0 441 snd_seq_ev_raw8_t raw8; /**< raw8 data */
Chris@0 442 snd_seq_ev_raw32_t raw32; /**< raw32 data */
Chris@0 443 snd_seq_ev_ext_t ext; /**< external data */
Chris@0 444 snd_seq_ev_queue_control_t queue; /**< queue control */
Chris@0 445 snd_seq_timestamp_t time; /**< timestamp */
Chris@0 446 snd_seq_addr_t addr; /**< address */
Chris@0 447 snd_seq_connect_t connect; /**< connect information */
Chris@0 448 snd_seq_result_t result; /**< operation result code */
Chris@0 449 snd_seq_ev_instr_begin_t instr_begin; /**< instrument */
Chris@0 450 snd_seq_ev_sample_control_t sample; /**< sample control */
Chris@0 451 } data; /**< event data... */
Chris@0 452 } snd_seq_event_t;
Chris@0 453
Chris@0 454
Chris@0 455 /** \} */
Chris@0 456
Chris@0 457 #endif /* __ALSA_SEQ_EVENT_H */
Chris@0 458