1 /** 2 * \file include/seq.h 3 * \brief Application interface library for the ALSA driver 4 * \author Jaroslav Kysela <perex@perex.cz> 5 * \author Abramo Bagnara <abramo@alsa-project.org> 6 * \author Takashi Iwai <tiwai@suse.de> 7 * \date 1998-2001 8 */ 9 /* 10 * Application interface library for the ALSA driver 11 * 12 * 13 * This library is free software; you can redistribute it and/or modify 14 * it under the terms of the GNU Lesser General Public License as 15 * published by the Free Software Foundation; either version 2.1 of 16 * the License, or (at your option) any later version. 17 * 18 * This program is distributed in the hope that it will be useful, 19 * but WITHOUT ANY WARRANTY; without even the implied warranty of 20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 * GNU Lesser General Public License for more details. 22 * 23 * You should have received a copy of the GNU Lesser General Public 24 * License along with this library; if not, write to the Free Software 25 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 26 * 27 */ 28 29 #ifndef __ALSA_SEQ_H 30 #define __ALSA_SEQ_H 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 /** 37 * \defgroup Sequencer MIDI Sequencer 38 * MIDI Sequencer Interface. 39 * See \ref seq page for more details. 40 * \{ 41 */ 42 43 /** dlsym version for interface entry callback */ 44 #define SND_SEQ_DLSYM_VERSION _dlsym_seq_001 45 46 /** Sequencer handle */ 47 typedef struct _snd_seq snd_seq_t; 48 49 /** 50 * sequencer opening stream types 51 */ 52 #define SND_SEQ_OPEN_OUTPUT 1 /**< open for output (write) */ 53 #define SND_SEQ_OPEN_INPUT 2 /**< open for input (read) */ 54 #define SND_SEQ_OPEN_DUPLEX (SND_SEQ_OPEN_OUTPUT|SND_SEQ_OPEN_INPUT) /**< open for both input and output (read/write) */ 55 56 /** 57 * sequencer opening mode 58 */ 59 #define SND_SEQ_NONBLOCK 0x0001 /**< non-blocking mode (flag to open mode) */ 60 61 /** sequencer handle type */ 62 typedef enum _snd_seq_type { 63 SND_SEQ_TYPE_HW, /**< hardware */ 64 SND_SEQ_TYPE_SHM, /**< shared memory (NYI) */ 65 SND_SEQ_TYPE_INET /**< network (NYI) */ 66 } snd_seq_type_t; 67 68 /** special client (port) ids */ 69 #define SND_SEQ_ADDRESS_UNKNOWN 253 /**< unknown source */ 70 #define SND_SEQ_ADDRESS_SUBSCRIBERS 254 /**< send event to all subscribed ports */ 71 #define SND_SEQ_ADDRESS_BROADCAST 255 /**< send event to all queues/clients/ports/channels */ 72 73 /** known client numbers */ 74 #define SND_SEQ_CLIENT_SYSTEM 0 /**< system client */ 75 76 /* 77 */ 78 int snd_seq_open(snd_seq_t **handle, const char *name, int streams, int mode); 79 int snd_seq_open_lconf(snd_seq_t **handle, const char *name, int streams, int mode, snd_config_t *lconf); 80 const char *snd_seq_name(snd_seq_t *seq); 81 snd_seq_type_t snd_seq_type(snd_seq_t *seq); 82 int snd_seq_close(snd_seq_t *handle); 83 int snd_seq_poll_descriptors_count(snd_seq_t *handle, short events); 84 int snd_seq_poll_descriptors(snd_seq_t *handle, struct pollfd *pfds, unsigned int space, short events); 85 int snd_seq_poll_descriptors_revents(snd_seq_t *seq, struct pollfd *pfds, unsigned int nfds, unsigned short *revents); 86 int snd_seq_nonblock(snd_seq_t *handle, int nonblock); 87 int snd_seq_client_id(snd_seq_t *handle); 88 89 size_t snd_seq_get_output_buffer_size(snd_seq_t *handle); 90 size_t snd_seq_get_input_buffer_size(snd_seq_t *handle); 91 int snd_seq_set_output_buffer_size(snd_seq_t *handle, size_t size); 92 int snd_seq_set_input_buffer_size(snd_seq_t *handle, size_t size); 93 94 /** system information container */ 95 typedef struct _snd_seq_system_info snd_seq_system_info_t; 96 97 size_t snd_seq_system_info_sizeof(void); 98 /** allocate a #snd_seq_system_info_t container on stack */ 99 #define snd_seq_system_info_alloca(ptr) \ 100 __snd_alloca(ptr, snd_seq_system_info) 101 int snd_seq_system_info_malloc(snd_seq_system_info_t **ptr); 102 void snd_seq_system_info_free(snd_seq_system_info_t *ptr); 103 void snd_seq_system_info_copy(snd_seq_system_info_t *dst, const snd_seq_system_info_t *src); 104 105 int snd_seq_system_info_get_queues(const snd_seq_system_info_t *info); 106 int snd_seq_system_info_get_clients(const snd_seq_system_info_t *info); 107 int snd_seq_system_info_get_ports(const snd_seq_system_info_t *info); 108 int snd_seq_system_info_get_channels(const snd_seq_system_info_t *info); 109 int snd_seq_system_info_get_cur_clients(const snd_seq_system_info_t *info); 110 int snd_seq_system_info_get_cur_queues(const snd_seq_system_info_t *info); 111 112 int snd_seq_system_info(snd_seq_t *handle, snd_seq_system_info_t *info); 113 114 /** \} */ 115 116 117 /** 118 * \defgroup SeqClient Sequencer Client Interface 119 * Sequencer Client Interface 120 * \ingroup Sequencer 121 * \{ 122 */ 123 124 /** client information container */ 125 typedef struct _snd_seq_client_info snd_seq_client_info_t; 126 127 /** client types */ 128 typedef enum snd_seq_client_type { 129 SND_SEQ_USER_CLIENT = 1, /**< user client */ 130 SND_SEQ_KERNEL_CLIENT = 2 /**< kernel client */ 131 } snd_seq_client_type_t; 132 133 size_t snd_seq_client_info_sizeof(void); 134 /** allocate a #snd_seq_client_info_t container on stack */ 135 #define snd_seq_client_info_alloca(ptr) \ 136 __snd_alloca(ptr, snd_seq_client_info) 137 int snd_seq_client_info_malloc(snd_seq_client_info_t **ptr); 138 void snd_seq_client_info_free(snd_seq_client_info_t *ptr); 139 void snd_seq_client_info_copy(snd_seq_client_info_t *dst, const snd_seq_client_info_t *src); 140 141 int snd_seq_client_info_get_client(const snd_seq_client_info_t *info); 142 snd_seq_client_type_t snd_seq_client_info_get_type(const snd_seq_client_info_t *info); 143 const char *snd_seq_client_info_get_name(snd_seq_client_info_t *info); 144 int snd_seq_client_info_get_broadcast_filter(const snd_seq_client_info_t *info); 145 int snd_seq_client_info_get_error_bounce(const snd_seq_client_info_t *info); 146 int snd_seq_client_info_get_card(const snd_seq_client_info_t *info); 147 int snd_seq_client_info_get_pid(const snd_seq_client_info_t *info); 148 const unsigned char *snd_seq_client_info_get_event_filter(const snd_seq_client_info_t *info); 149 int snd_seq_client_info_get_num_ports(const snd_seq_client_info_t *info); 150 int snd_seq_client_info_get_event_lost(const snd_seq_client_info_t *info); 151 152 void snd_seq_client_info_set_client(snd_seq_client_info_t *info, int client); 153 void snd_seq_client_info_set_name(snd_seq_client_info_t *info, const char *name); 154 void snd_seq_client_info_set_broadcast_filter(snd_seq_client_info_t *info, int val); 155 void snd_seq_client_info_set_error_bounce(snd_seq_client_info_t *info, int val); 156 void snd_seq_client_info_set_event_filter(snd_seq_client_info_t *info, unsigned char *filter); 157 158 void snd_seq_client_info_event_filter_clear(snd_seq_client_info_t *info); 159 void snd_seq_client_info_event_filter_add(snd_seq_client_info_t *info, int event_type); 160 void snd_seq_client_info_event_filter_del(snd_seq_client_info_t *info, int event_type); 161 int snd_seq_client_info_event_filter_check(snd_seq_client_info_t *info, int event_type); 162 163 int snd_seq_get_client_info(snd_seq_t *handle, snd_seq_client_info_t *info); 164 int snd_seq_get_any_client_info(snd_seq_t *handle, int client, snd_seq_client_info_t *info); 165 int snd_seq_set_client_info(snd_seq_t *handle, snd_seq_client_info_t *info); 166 int snd_seq_query_next_client(snd_seq_t *handle, snd_seq_client_info_t *info); 167 168 /* 169 */ 170 171 /** client pool information container */ 172 typedef struct _snd_seq_client_pool snd_seq_client_pool_t; 173 174 size_t snd_seq_client_pool_sizeof(void); 175 /** allocate a #snd_seq_client_pool_t container on stack */ 176 #define snd_seq_client_pool_alloca(ptr) \ 177 __snd_alloca(ptr, snd_seq_client_pool) 178 int snd_seq_client_pool_malloc(snd_seq_client_pool_t **ptr); 179 void snd_seq_client_pool_free(snd_seq_client_pool_t *ptr); 180 void snd_seq_client_pool_copy(snd_seq_client_pool_t *dst, const snd_seq_client_pool_t *src); 181 182 int snd_seq_client_pool_get_client(const snd_seq_client_pool_t *info); 183 size_t snd_seq_client_pool_get_output_pool(const snd_seq_client_pool_t *info); 184 size_t snd_seq_client_pool_get_input_pool(const snd_seq_client_pool_t *info); 185 size_t snd_seq_client_pool_get_output_room(const snd_seq_client_pool_t *info); 186 size_t snd_seq_client_pool_get_output_free(const snd_seq_client_pool_t *info); 187 size_t snd_seq_client_pool_get_input_free(const snd_seq_client_pool_t *info); 188 void snd_seq_client_pool_set_output_pool(snd_seq_client_pool_t *info, size_t size); 189 void snd_seq_client_pool_set_input_pool(snd_seq_client_pool_t *info, size_t size); 190 void snd_seq_client_pool_set_output_room(snd_seq_client_pool_t *info, size_t size); 191 192 int snd_seq_get_client_pool(snd_seq_t *handle, snd_seq_client_pool_t *info); 193 int snd_seq_set_client_pool(snd_seq_t *handle, snd_seq_client_pool_t *info); 194 195 196 /** \} */ 197 198 199 /** 200 * \defgroup SeqPort Sequencer Port Interface 201 * Sequencer Port Interface 202 * \ingroup Sequencer 203 * \{ 204 */ 205 206 /** port information container */ 207 typedef struct _snd_seq_port_info snd_seq_port_info_t; 208 209 /** known port numbers */ 210 #define SND_SEQ_PORT_SYSTEM_TIMER 0 /**< system timer port */ 211 #define SND_SEQ_PORT_SYSTEM_ANNOUNCE 1 /**< system announce port */ 212 213 /** port capabilities (32 bits) */ 214 #define SND_SEQ_PORT_CAP_READ (1<<0) /**< readable from this port */ 215 #define SND_SEQ_PORT_CAP_WRITE (1<<1) /**< writable to this port */ 216 217 #define SND_SEQ_PORT_CAP_SYNC_READ (1<<2) /**< allow read subscriptions */ 218 #define SND_SEQ_PORT_CAP_SYNC_WRITE (1<<3) /**< allow write subscriptions */ 219 220 #define SND_SEQ_PORT_CAP_DUPLEX (1<<4) /**< allow read/write duplex */ 221 222 #define SND_SEQ_PORT_CAP_SUBS_READ (1<<5) /**< allow read subscription */ 223 #define SND_SEQ_PORT_CAP_SUBS_WRITE (1<<6) /**< allow write subscription */ 224 #define SND_SEQ_PORT_CAP_NO_EXPORT (1<<7) /**< routing not allowed */ 225 226 /* port type */ 227 /** Messages sent from/to this port have device-specific semantics. */ 228 #define SND_SEQ_PORT_TYPE_SPECIFIC (1<<0) 229 /** This port understands MIDI messages. */ 230 #define SND_SEQ_PORT_TYPE_MIDI_GENERIC (1<<1) 231 /** This port is compatible with the General MIDI specification. */ 232 #define SND_SEQ_PORT_TYPE_MIDI_GM (1<<2) 233 /** This port is compatible with the Roland GS standard. */ 234 #define SND_SEQ_PORT_TYPE_MIDI_GS (1<<3) 235 /** This port is compatible with the Yamaha XG specification. */ 236 #define SND_SEQ_PORT_TYPE_MIDI_XG (1<<4) 237 /** This port is compatible with the Roland MT-32. */ 238 #define SND_SEQ_PORT_TYPE_MIDI_MT32 (1<<5) 239 /** This port is compatible with the General MIDI 2 specification. */ 240 #define SND_SEQ_PORT_TYPE_MIDI_GM2 (1<<6) 241 /** This port understands SND_SEQ_EVENT_SAMPLE_xxx messages 242 (these are not MIDI messages). */ 243 #define SND_SEQ_PORT_TYPE_SYNTH (1<<10) 244 /** Instruments can be downloaded to this port 245 (with SND_SEQ_EVENT_INSTR_xxx messages sent directly). */ 246 #define SND_SEQ_PORT_TYPE_DIRECT_SAMPLE (1<<11) 247 /** Instruments can be downloaded to this port 248 (with SND_SEQ_EVENT_INSTR_xxx messages sent directly or through a queue). */ 249 #define SND_SEQ_PORT_TYPE_SAMPLE (1<<12) 250 /** This port is implemented in hardware. */ 251 #define SND_SEQ_PORT_TYPE_HARDWARE (1<<16) 252 /** This port is implemented in software. */ 253 #define SND_SEQ_PORT_TYPE_SOFTWARE (1<<17) 254 /** Messages sent to this port will generate sounds. */ 255 #define SND_SEQ_PORT_TYPE_SYNTHESIZER (1<<18) 256 /** This port may connect to other devices 257 (whose characteristics are not known). */ 258 #define SND_SEQ_PORT_TYPE_PORT (1<<19) 259 /** This port belongs to an application, such as a sequencer or editor. */ 260 #define SND_SEQ_PORT_TYPE_APPLICATION (1<<20) 261 262 263 size_t snd_seq_port_info_sizeof(void); 264 /** allocate a #snd_seq_port_info_t container on stack */ 265 #define snd_seq_port_info_alloca(ptr) \ 266 __snd_alloca(ptr, snd_seq_port_info) 267 int snd_seq_port_info_malloc(snd_seq_port_info_t **ptr); 268 void snd_seq_port_info_free(snd_seq_port_info_t *ptr); 269 void snd_seq_port_info_copy(snd_seq_port_info_t *dst, const snd_seq_port_info_t *src); 270 271 int snd_seq_port_info_get_client(const snd_seq_port_info_t *info); 272 int snd_seq_port_info_get_port(const snd_seq_port_info_t *info); 273 const snd_seq_addr_t *snd_seq_port_info_get_addr(const snd_seq_port_info_t *info); 274 const char *snd_seq_port_info_get_name(const snd_seq_port_info_t *info); 275 unsigned int snd_seq_port_info_get_capability(const snd_seq_port_info_t *info); 276 unsigned int snd_seq_port_info_get_type(const snd_seq_port_info_t *info); 277 int snd_seq_port_info_get_midi_channels(const snd_seq_port_info_t *info); 278 int snd_seq_port_info_get_midi_voices(const snd_seq_port_info_t *info); 279 int snd_seq_port_info_get_synth_voices(const snd_seq_port_info_t *info); 280 int snd_seq_port_info_get_read_use(const snd_seq_port_info_t *info); 281 int snd_seq_port_info_get_write_use(const snd_seq_port_info_t *info); 282 int snd_seq_port_info_get_port_specified(const snd_seq_port_info_t *info); 283 int snd_seq_port_info_get_timestamping(const snd_seq_port_info_t *info); 284 int snd_seq_port_info_get_timestamp_real(const snd_seq_port_info_t *info); 285 int snd_seq_port_info_get_timestamp_queue(const snd_seq_port_info_t *info); 286 287 void snd_seq_port_info_set_client(snd_seq_port_info_t *info, int client); 288 void snd_seq_port_info_set_port(snd_seq_port_info_t *info, int port); 289 void snd_seq_port_info_set_addr(snd_seq_port_info_t *info, const snd_seq_addr_t *addr); 290 void snd_seq_port_info_set_name(snd_seq_port_info_t *info, const char *name); 291 void snd_seq_port_info_set_capability(snd_seq_port_info_t *info, unsigned int capability); 292 void snd_seq_port_info_set_type(snd_seq_port_info_t *info, unsigned int type); 293 void snd_seq_port_info_set_midi_channels(snd_seq_port_info_t *info, int channels); 294 void snd_seq_port_info_set_midi_voices(snd_seq_port_info_t *info, int voices); 295 void snd_seq_port_info_set_synth_voices(snd_seq_port_info_t *info, int voices); 296 void snd_seq_port_info_set_port_specified(snd_seq_port_info_t *info, int val); 297 void snd_seq_port_info_set_timestamping(snd_seq_port_info_t *info, int enable); 298 void snd_seq_port_info_set_timestamp_real(snd_seq_port_info_t *info, int realtime); 299 void snd_seq_port_info_set_timestamp_queue(snd_seq_port_info_t *info, int queue); 300 301 int snd_seq_create_port(snd_seq_t *handle, snd_seq_port_info_t *info); 302 int snd_seq_delete_port(snd_seq_t *handle, int port); 303 int snd_seq_get_port_info(snd_seq_t *handle, int port, snd_seq_port_info_t *info); 304 int snd_seq_get_any_port_info(snd_seq_t *handle, int client, int port, snd_seq_port_info_t *info); 305 int snd_seq_set_port_info(snd_seq_t *handle, int port, snd_seq_port_info_t *info); 306 int snd_seq_query_next_port(snd_seq_t *handle, snd_seq_port_info_t *info); 307 308 /** \} */ 309 310 311 /** 312 * \defgroup SeqSubscribe Sequencer Port Subscription 313 * Sequencer Port Subscription 314 * \ingroup Sequencer 315 * \{ 316 */ 317 318 /** port subscription container */ 319 typedef struct _snd_seq_port_subscribe snd_seq_port_subscribe_t; 320 321 size_t snd_seq_port_subscribe_sizeof(void); 322 /** allocate a #snd_seq_port_subscribe_t container on stack */ 323 #define snd_seq_port_subscribe_alloca(ptr) \ 324 __snd_alloca(ptr, snd_seq_port_subscribe) 325 int snd_seq_port_subscribe_malloc(snd_seq_port_subscribe_t **ptr); 326 void snd_seq_port_subscribe_free(snd_seq_port_subscribe_t *ptr); 327 void snd_seq_port_subscribe_copy(snd_seq_port_subscribe_t *dst, const snd_seq_port_subscribe_t *src); 328 329 const snd_seq_addr_t *snd_seq_port_subscribe_get_sender(const snd_seq_port_subscribe_t *info); 330 const snd_seq_addr_t *snd_seq_port_subscribe_get_dest(const snd_seq_port_subscribe_t *info); 331 int snd_seq_port_subscribe_get_queue(const snd_seq_port_subscribe_t *info); 332 int snd_seq_port_subscribe_get_exclusive(const snd_seq_port_subscribe_t *info); 333 int snd_seq_port_subscribe_get_time_update(const snd_seq_port_subscribe_t *info); 334 int snd_seq_port_subscribe_get_time_real(const snd_seq_port_subscribe_t *info); 335 336 void snd_seq_port_subscribe_set_sender(snd_seq_port_subscribe_t *info, const snd_seq_addr_t *addr); 337 void snd_seq_port_subscribe_set_dest(snd_seq_port_subscribe_t *info, const snd_seq_addr_t *addr); 338 void snd_seq_port_subscribe_set_queue(snd_seq_port_subscribe_t *info, int q); 339 void snd_seq_port_subscribe_set_exclusive(snd_seq_port_subscribe_t *info, int val); 340 void snd_seq_port_subscribe_set_time_update(snd_seq_port_subscribe_t *info, int val); 341 void snd_seq_port_subscribe_set_time_real(snd_seq_port_subscribe_t *info, int val); 342 343 int snd_seq_get_port_subscription(snd_seq_t *handle, snd_seq_port_subscribe_t *sub); 344 int snd_seq_subscribe_port(snd_seq_t *handle, snd_seq_port_subscribe_t *sub); 345 int snd_seq_unsubscribe_port(snd_seq_t *handle, snd_seq_port_subscribe_t *sub); 346 347 /* 348 */ 349 350 /** subscription query container */ 351 typedef struct _snd_seq_query_subscribe snd_seq_query_subscribe_t; 352 353 /** type of query subscription */ 354 typedef enum { 355 SND_SEQ_QUERY_SUBS_READ, /**< query read subscriptions */ 356 SND_SEQ_QUERY_SUBS_WRITE /**< query write subscriptions */ 357 } snd_seq_query_subs_type_t; 358 359 size_t snd_seq_query_subscribe_sizeof(void); 360 /** allocate a #snd_seq_query_subscribe_t container on stack */ 361 #define snd_seq_query_subscribe_alloca(ptr) \ 362 __snd_alloca(ptr, snd_seq_query_subscribe) 363 int snd_seq_query_subscribe_malloc(snd_seq_query_subscribe_t **ptr); 364 void snd_seq_query_subscribe_free(snd_seq_query_subscribe_t *ptr); 365 void snd_seq_query_subscribe_copy(snd_seq_query_subscribe_t *dst, const snd_seq_query_subscribe_t *src); 366 367 int snd_seq_query_subscribe_get_client(const snd_seq_query_subscribe_t *info); 368 int snd_seq_query_subscribe_get_port(const snd_seq_query_subscribe_t *info); 369 const snd_seq_addr_t *snd_seq_query_subscribe_get_root(const snd_seq_query_subscribe_t *info); 370 snd_seq_query_subs_type_t snd_seq_query_subscribe_get_type(const snd_seq_query_subscribe_t *info); 371 int snd_seq_query_subscribe_get_index(const snd_seq_query_subscribe_t *info); 372 int snd_seq_query_subscribe_get_num_subs(const snd_seq_query_subscribe_t *info); 373 const snd_seq_addr_t *snd_seq_query_subscribe_get_addr(const snd_seq_query_subscribe_t *info); 374 int snd_seq_query_subscribe_get_queue(const snd_seq_query_subscribe_t *info); 375 int snd_seq_query_subscribe_get_exclusive(const snd_seq_query_subscribe_t *info); 376 int snd_seq_query_subscribe_get_time_update(const snd_seq_query_subscribe_t *info); 377 int snd_seq_query_subscribe_get_time_real(const snd_seq_query_subscribe_t *info); 378 379 void snd_seq_query_subscribe_set_client(snd_seq_query_subscribe_t *info, int client); 380 void snd_seq_query_subscribe_set_port(snd_seq_query_subscribe_t *info, int port); 381 void snd_seq_query_subscribe_set_root(snd_seq_query_subscribe_t *info, const snd_seq_addr_t *addr); 382 void snd_seq_query_subscribe_set_type(snd_seq_query_subscribe_t *info, snd_seq_query_subs_type_t type); 383 void snd_seq_query_subscribe_set_index(snd_seq_query_subscribe_t *info, int _index); 384 385 int snd_seq_query_port_subscribers(snd_seq_t *seq, snd_seq_query_subscribe_t * subs); 386 387 /** \} */ 388 389 390 /** 391 * \defgroup SeqQueue Sequencer Queue Interface 392 * Sequencer Queue Interface 393 * \ingroup Sequencer 394 * \{ 395 */ 396 397 /** queue information container */ 398 typedef struct _snd_seq_queue_info snd_seq_queue_info_t; 399 /** queue status container */ 400 typedef struct _snd_seq_queue_status snd_seq_queue_status_t; 401 /** queue tempo container */ 402 typedef struct _snd_seq_queue_tempo snd_seq_queue_tempo_t; 403 /** queue timer information container */ 404 typedef struct _snd_seq_queue_timer snd_seq_queue_timer_t; 405 406 /** special queue ids */ 407 #define SND_SEQ_QUEUE_DIRECT 253 /**< direct dispatch */ 408 409 size_t snd_seq_queue_info_sizeof(void); 410 /** allocate a #snd_seq_queue_info_t container on stack */ 411 #define snd_seq_queue_info_alloca(ptr) \ 412 __snd_alloca(ptr, snd_seq_queue_info) 413 int snd_seq_queue_info_malloc(snd_seq_queue_info_t **ptr); 414 void snd_seq_queue_info_free(snd_seq_queue_info_t *ptr); 415 void snd_seq_queue_info_copy(snd_seq_queue_info_t *dst, const snd_seq_queue_info_t *src); 416 417 int snd_seq_queue_info_get_queue(const snd_seq_queue_info_t *info); 418 const char *snd_seq_queue_info_get_name(const snd_seq_queue_info_t *info); 419 int snd_seq_queue_info_get_owner(const snd_seq_queue_info_t *info); 420 int snd_seq_queue_info_get_locked(const snd_seq_queue_info_t *info); 421 unsigned int snd_seq_queue_info_get_flags(const snd_seq_queue_info_t *info); 422 423 void snd_seq_queue_info_set_name(snd_seq_queue_info_t *info, const char *name); 424 void snd_seq_queue_info_set_owner(snd_seq_queue_info_t *info, int owner); 425 void snd_seq_queue_info_set_locked(snd_seq_queue_info_t *info, int locked); 426 void snd_seq_queue_info_set_flags(snd_seq_queue_info_t *info, unsigned int flags); 427 428 int snd_seq_create_queue(snd_seq_t *seq, snd_seq_queue_info_t *info); 429 int snd_seq_alloc_named_queue(snd_seq_t *seq, const char *name); 430 int snd_seq_alloc_queue(snd_seq_t *handle); 431 int snd_seq_free_queue(snd_seq_t *handle, int q); 432 int snd_seq_get_queue_info(snd_seq_t *seq, int q, snd_seq_queue_info_t *info); 433 int snd_seq_set_queue_info(snd_seq_t *seq, int q, snd_seq_queue_info_t *info); 434 int snd_seq_query_named_queue(snd_seq_t *seq, const char *name); 435 436 int snd_seq_get_queue_usage(snd_seq_t *handle, int q); 437 int snd_seq_set_queue_usage(snd_seq_t *handle, int q, int used); 438 439 /* 440 */ 441 size_t snd_seq_queue_status_sizeof(void); 442 /** allocate a #snd_seq_queue_status_t container on stack */ 443 #define snd_seq_queue_status_alloca(ptr) \ 444 __snd_alloca(ptr, snd_seq_queue_status) 445 int snd_seq_queue_status_malloc(snd_seq_queue_status_t **ptr); 446 void snd_seq_queue_status_free(snd_seq_queue_status_t *ptr); 447 void snd_seq_queue_status_copy(snd_seq_queue_status_t *dst, const snd_seq_queue_status_t *src); 448 449 int snd_seq_queue_status_get_queue(const snd_seq_queue_status_t *info); 450 int snd_seq_queue_status_get_events(const snd_seq_queue_status_t *info); 451 snd_seq_tick_time_t snd_seq_queue_status_get_tick_time(const snd_seq_queue_status_t *info); 452 const snd_seq_real_time_t *snd_seq_queue_status_get_real_time(const snd_seq_queue_status_t *info); 453 unsigned int snd_seq_queue_status_get_status(const snd_seq_queue_status_t *info); 454 455 int snd_seq_get_queue_status(snd_seq_t *handle, int q, snd_seq_queue_status_t *status); 456 457 /* 458 */ 459 size_t snd_seq_queue_tempo_sizeof(void); 460 /** allocate a #snd_seq_queue_tempo_t container on stack */ 461 #define snd_seq_queue_tempo_alloca(ptr) \ 462 __snd_alloca(ptr, snd_seq_queue_tempo) 463 int snd_seq_queue_tempo_malloc(snd_seq_queue_tempo_t **ptr); 464 void snd_seq_queue_tempo_free(snd_seq_queue_tempo_t *ptr); 465 void snd_seq_queue_tempo_copy(snd_seq_queue_tempo_t *dst, const snd_seq_queue_tempo_t *src); 466 467 int snd_seq_queue_tempo_get_queue(const snd_seq_queue_tempo_t *info); 468 unsigned int snd_seq_queue_tempo_get_tempo(const snd_seq_queue_tempo_t *info); 469 int snd_seq_queue_tempo_get_ppq(const snd_seq_queue_tempo_t *info); 470 unsigned int snd_seq_queue_tempo_get_skew(const snd_seq_queue_tempo_t *info); 471 unsigned int snd_seq_queue_tempo_get_skew_base(const snd_seq_queue_tempo_t *info); 472 void snd_seq_queue_tempo_set_tempo(snd_seq_queue_tempo_t *info, unsigned int tempo); 473 void snd_seq_queue_tempo_set_ppq(snd_seq_queue_tempo_t *info, int ppq); 474 void snd_seq_queue_tempo_set_skew(snd_seq_queue_tempo_t *info, unsigned int skew); 475 void snd_seq_queue_tempo_set_skew_base(snd_seq_queue_tempo_t *info, unsigned int base); 476 477 int snd_seq_get_queue_tempo(snd_seq_t *handle, int q, snd_seq_queue_tempo_t *tempo); 478 int snd_seq_set_queue_tempo(snd_seq_t *handle, int q, snd_seq_queue_tempo_t *tempo); 479 480 /* 481 */ 482 483 /** sequencer timer sources */ 484 typedef enum { 485 SND_SEQ_TIMER_ALSA = 0, /* ALSA timer */ 486 SND_SEQ_TIMER_MIDI_CLOCK = 1, /* Midi Clock (CLOCK event) */ 487 SND_SEQ_TIMER_MIDI_TICK = 2 /* Midi Timer Tick (TICK event */ 488 } snd_seq_queue_timer_type_t; 489 490 size_t snd_seq_queue_timer_sizeof(void); 491 /** allocate a #snd_seq_queue_timer_t container on stack */ 492 #define snd_seq_queue_timer_alloca(ptr) \ 493 __snd_alloca(ptr, snd_seq_queue_timer) 494 int snd_seq_queue_timer_malloc(snd_seq_queue_timer_t **ptr); 495 void snd_seq_queue_timer_free(snd_seq_queue_timer_t *ptr); 496 void snd_seq_queue_timer_copy(snd_seq_queue_timer_t *dst, const snd_seq_queue_timer_t *src); 497 498 int snd_seq_queue_timer_get_queue(const snd_seq_queue_timer_t *info); 499 snd_seq_queue_timer_type_t snd_seq_queue_timer_get_type(const snd_seq_queue_timer_t *info); 500 const snd_timer_id_t *snd_seq_queue_timer_get_id(const snd_seq_queue_timer_t *info); 501 unsigned int snd_seq_queue_timer_get_resolution(const snd_seq_queue_timer_t *info); 502 503 void snd_seq_queue_timer_set_type(snd_seq_queue_timer_t *info, snd_seq_queue_timer_type_t type); 504 void snd_seq_queue_timer_set_id(snd_seq_queue_timer_t *info, const snd_timer_id_t *id); 505 void snd_seq_queue_timer_set_resolution(snd_seq_queue_timer_t *info, unsigned int resolution); 506 507 int snd_seq_get_queue_timer(snd_seq_t *handle, int q, snd_seq_queue_timer_t *timer); 508 int snd_seq_set_queue_timer(snd_seq_t *handle, int q, snd_seq_queue_timer_t *timer); 509 510 /** \} */ 511 512 /** 513 * \defgroup SeqEvent Sequencer Event API 514 * Sequencer Event API 515 * \ingroup Sequencer 516 * \{ 517 */ 518 519 int snd_seq_free_event(snd_seq_event_t *ev); 520 ssize_t snd_seq_event_length(snd_seq_event_t *ev); 521 int snd_seq_event_output(snd_seq_t *handle, snd_seq_event_t *ev); 522 int snd_seq_event_output_buffer(snd_seq_t *handle, snd_seq_event_t *ev); 523 int snd_seq_event_output_direct(snd_seq_t *handle, snd_seq_event_t *ev); 524 int snd_seq_event_input(snd_seq_t *handle, snd_seq_event_t **ev); 525 int snd_seq_event_input_pending(snd_seq_t *seq, int fetch_sequencer); 526 int snd_seq_drain_output(snd_seq_t *handle); 527 int snd_seq_event_output_pending(snd_seq_t *seq); 528 int snd_seq_extract_output(snd_seq_t *handle, snd_seq_event_t **ev); 529 int snd_seq_drop_output(snd_seq_t *handle); 530 int snd_seq_drop_output_buffer(snd_seq_t *handle); 531 int snd_seq_drop_input(snd_seq_t *handle); 532 int snd_seq_drop_input_buffer(snd_seq_t *handle); 533 534 /** event removal conditionals */ 535 typedef struct _snd_seq_remove_events snd_seq_remove_events_t; 536 537 /** Remove conditional flags */ 538 #define SND_SEQ_REMOVE_INPUT (1<<0) /**< Flush input queues */ 539 #define SND_SEQ_REMOVE_OUTPUT (1<<1) /**< Flush output queues */ 540 #define SND_SEQ_REMOVE_DEST (1<<2) /**< Restrict by destination q:client:port */ 541 #define SND_SEQ_REMOVE_DEST_CHANNEL (1<<3) /**< Restrict by channel */ 542 #define SND_SEQ_REMOVE_TIME_BEFORE (1<<4) /**< Restrict to before time */ 543 #define SND_SEQ_REMOVE_TIME_AFTER (1<<5) /**< Restrict to time or after */ 544 #define SND_SEQ_REMOVE_TIME_TICK (1<<6) /**< Time is in ticks */ 545 #define SND_SEQ_REMOVE_EVENT_TYPE (1<<7) /**< Restrict to event type */ 546 #define SND_SEQ_REMOVE_IGNORE_OFF (1<<8) /**< Do not flush off events */ 547 #define SND_SEQ_REMOVE_TAG_MATCH (1<<9) /**< Restrict to events with given tag */ 548 549 size_t snd_seq_remove_events_sizeof(void); 550 /** allocate a #snd_seq_remove_events_t container on stack */ 551 #define snd_seq_remove_events_alloca(ptr) \ 552 __snd_alloca(ptr, snd_seq_remove_events) 553 int snd_seq_remove_events_malloc(snd_seq_remove_events_t **ptr); 554 void snd_seq_remove_events_free(snd_seq_remove_events_t *ptr); 555 void snd_seq_remove_events_copy(snd_seq_remove_events_t *dst, const snd_seq_remove_events_t *src); 556 557 unsigned int snd_seq_remove_events_get_condition(const snd_seq_remove_events_t *info); 558 int snd_seq_remove_events_get_queue(const snd_seq_remove_events_t *info); 559 const snd_seq_timestamp_t *snd_seq_remove_events_get_time(const snd_seq_remove_events_t *info); 560 const snd_seq_addr_t *snd_seq_remove_events_get_dest(const snd_seq_remove_events_t *info); 561 int snd_seq_remove_events_get_channel(const snd_seq_remove_events_t *info); 562 int snd_seq_remove_events_get_event_type(const snd_seq_remove_events_t *info); 563 int snd_seq_remove_events_get_tag(const snd_seq_remove_events_t *info); 564 565 void snd_seq_remove_events_set_condition(snd_seq_remove_events_t *info, unsigned int flags); 566 void snd_seq_remove_events_set_queue(snd_seq_remove_events_t *info, int queue); 567 void snd_seq_remove_events_set_time(snd_seq_remove_events_t *info, const snd_seq_timestamp_t *time); 568 void snd_seq_remove_events_set_dest(snd_seq_remove_events_t *info, const snd_seq_addr_t *addr); 569 void snd_seq_remove_events_set_channel(snd_seq_remove_events_t *info, int channel); 570 void snd_seq_remove_events_set_event_type(snd_seq_remove_events_t *info, int type); 571 void snd_seq_remove_events_set_tag(snd_seq_remove_events_t *info, int tag); 572 573 int snd_seq_remove_events(snd_seq_t *handle, snd_seq_remove_events_t *info); 574 575 /** \} */ 576 577 /** 578 * \defgroup SeqMisc Sequencer Miscellaneous 579 * Sequencer Miscellaneous 580 * \ingroup Sequencer 581 * \{ 582 */ 583 584 void snd_seq_set_bit(int nr, void *array); 585 void snd_seq_unset_bit(int nr, void *array); 586 int snd_seq_change_bit(int nr, void *array); 587 int snd_seq_get_bit(int nr, void *array); 588 589 /** \} */ 590 591 592 /** 593 * \defgroup SeqEvType Sequencer Event Type Checks 594 * Sequencer Event Type Checks 595 * \ingroup Sequencer 596 * \{ 597 */ 598 599 /* event type macros */ 600 enum { 601 SND_SEQ_EVFLG_RESULT, 602 SND_SEQ_EVFLG_NOTE, 603 SND_SEQ_EVFLG_CONTROL, 604 SND_SEQ_EVFLG_QUEUE, 605 SND_SEQ_EVFLG_SYSTEM, 606 SND_SEQ_EVFLG_MESSAGE, 607 SND_SEQ_EVFLG_CONNECTION, 608 SND_SEQ_EVFLG_SAMPLE, 609 SND_SEQ_EVFLG_USERS, 610 SND_SEQ_EVFLG_INSTR, 611 SND_SEQ_EVFLG_QUOTE, 612 SND_SEQ_EVFLG_NONE, 613 SND_SEQ_EVFLG_RAW, 614 SND_SEQ_EVFLG_FIXED, 615 SND_SEQ_EVFLG_VARIABLE, 616 SND_SEQ_EVFLG_VARUSR 617 }; 618 619 enum { 620 SND_SEQ_EVFLG_NOTE_ONEARG, 621 SND_SEQ_EVFLG_NOTE_TWOARG 622 }; 623 624 enum { 625 SND_SEQ_EVFLG_QUEUE_NOARG, 626 SND_SEQ_EVFLG_QUEUE_TICK, 627 SND_SEQ_EVFLG_QUEUE_TIME, 628 SND_SEQ_EVFLG_QUEUE_VALUE 629 }; 630 631 /** 632 * Exported event type table 633 * 634 * This table is referred by snd_seq_ev_is_xxx. 635 */ 636 extern const unsigned int snd_seq_event_types[]; 637 638 #define _SND_SEQ_TYPE(x) (1<<(x)) /**< master type - 24bit */ 639 #define _SND_SEQ_TYPE_OPT(x) ((x)<<24) /**< optional type - 8bit */ 640 641 /** check the event type */ 642 #define snd_seq_type_check(ev,x) (snd_seq_event_types[(ev)->type] & _SND_SEQ_TYPE(x)) 643 644 /** event type check: result events */ 645 #define snd_seq_ev_is_result_type(ev) \ 646 snd_seq_type_check(ev, SND_SEQ_EVFLG_RESULT) 647 /** event type check: note events */ 648 #define snd_seq_ev_is_note_type(ev) \ 649 snd_seq_type_check(ev, SND_SEQ_EVFLG_NOTE) 650 /** event type check: control events */ 651 #define snd_seq_ev_is_control_type(ev) \ 652 snd_seq_type_check(ev, SND_SEQ_EVFLG_CONTROL) 653 /** event type check: channel specific events */ 654 #define snd_seq_ev_is_channel_type(ev) \ 655 (snd_seq_event_types[(ev)->type] & (_SND_SEQ_TYPE(SND_SEQ_EVFLG_NOTE) | _SND_SEQ_TYPE(SND_SEQ_EVFLG_CONTROL))) 656 657 /** event type check: queue control events */ 658 #define snd_seq_ev_is_queue_type(ev) \ 659 snd_seq_type_check(ev, SND_SEQ_EVFLG_QUEUE) 660 /** event type check: system status messages */ 661 #define snd_seq_ev_is_message_type(ev) \ 662 snd_seq_type_check(ev, SND_SEQ_EVFLG_MESSAGE) 663 /** event type check: system status messages */ 664 #define snd_seq_ev_is_subscribe_type(ev) \ 665 snd_seq_type_check(ev, SND_SEQ_EVFLG_CONNECTION) 666 /** event type check: sample messages */ 667 #define snd_seq_ev_is_sample_type(ev) \ 668 snd_seq_type_check(ev, SND_SEQ_EVFLG_SAMPLE) 669 /** event type check: user-defined messages */ 670 #define snd_seq_ev_is_user_type(ev) \ 671 snd_seq_type_check(ev, SND_SEQ_EVFLG_USERS) 672 /** event type check: instrument layer events */ 673 #define snd_seq_ev_is_instr_type(ev) \ 674 snd_seq_type_check(ev, SND_SEQ_EVFLG_INSTR) 675 /** event type check: fixed length events */ 676 #define snd_seq_ev_is_fixed_type(ev) \ 677 snd_seq_type_check(ev, SND_SEQ_EVFLG_FIXED) 678 /** event type check: variable length events */ 679 #define snd_seq_ev_is_variable_type(ev) \ 680 snd_seq_type_check(ev, SND_SEQ_EVFLG_VARIABLE) 681 /** event type check: user pointer events */ 682 #define snd_seq_ev_is_varusr_type(ev) \ 683 snd_seq_type_check(ev, SND_SEQ_EVFLG_VARUSR) 684 /** event type check: reserved for kernel */ 685 #define snd_seq_ev_is_reserved(ev) \ 686 (! snd_seq_event_types[(ev)->type]) 687 688 /** 689 * macros to check event flags 690 */ 691 /** prior events */ 692 #define snd_seq_ev_is_prior(ev) \ 693 (((ev)->flags & SND_SEQ_PRIORITY_MASK) == SND_SEQ_PRIORITY_HIGH) 694 695 /** get the data length type */ 696 #define snd_seq_ev_length_type(ev) \ 697 ((ev)->flags & SND_SEQ_EVENT_LENGTH_MASK) 698 /** fixed length events */ 699 #define snd_seq_ev_is_fixed(ev) \ 700 (snd_seq_ev_length_type(ev) == SND_SEQ_EVENT_LENGTH_FIXED) 701 /** variable length events */ 702 #define snd_seq_ev_is_variable(ev) \ 703 (snd_seq_ev_length_type(ev) == SND_SEQ_EVENT_LENGTH_VARIABLE) 704 /** variable length on user-space */ 705 #define snd_seq_ev_is_varusr(ev) \ 706 (snd_seq_ev_length_type(ev) == SND_SEQ_EVENT_LENGTH_VARUSR) 707 708 /** time-stamp type */ 709 #define snd_seq_ev_timestamp_type(ev) \ 710 ((ev)->flags & SND_SEQ_TIME_STAMP_MASK) 711 /** event is in tick time */ 712 #define snd_seq_ev_is_tick(ev) \ 713 (snd_seq_ev_timestamp_type(ev) == SND_SEQ_TIME_STAMP_TICK) 714 /** event is in real-time */ 715 #define snd_seq_ev_is_real(ev) \ 716 (snd_seq_ev_timestamp_type(ev) == SND_SEQ_TIME_STAMP_REAL) 717 718 /** time-mode type */ 719 #define snd_seq_ev_timemode_type(ev) \ 720 ((ev)->flags & SND_SEQ_TIME_MODE_MASK) 721 /** scheduled in absolute time */ 722 #define snd_seq_ev_is_abstime(ev) \ 723 (snd_seq_ev_timemode_type(ev) == SND_SEQ_TIME_MODE_ABS) 724 /** scheduled in relative time */ 725 #define snd_seq_ev_is_reltime(ev) \ 726 (snd_seq_ev_timemode_type(ev) == SND_SEQ_TIME_MODE_REL) 727 728 /** direct dispatched events */ 729 #define snd_seq_ev_is_direct(ev) \ 730 ((ev)->queue == SND_SEQ_QUEUE_DIRECT) 731 732 /** \} */ 733 734 #ifdef __cplusplus 735 } 736 #endif 737 738 #endif /* __ALSA_SEQ_H */ 739 740