seqmid.h

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/*
 *   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_SEQMID_H
#define __ALSA_SEQMID_H

#ifdef __cplusplus
extern "C" {
#endif

#define snd_seq_ev_clear(ev) \
        memset(ev, 0, sizeof(snd_seq_event_t))

#define snd_seq_ev_set_tag(ev,t) \
        ((ev)->tag = (t))

#define snd_seq_ev_set_dest(ev,c,p) \
        ((ev)->dest.client = (c), (ev)->dest.port = (p))

#define snd_seq_ev_set_subs(ev) \
        ((ev)->dest.client = SND_SEQ_ADDRESS_SUBSCRIBERS,\
         (ev)->dest.port = SND_SEQ_ADDRESS_UNKNOWN)

#define snd_seq_ev_set_broadcast(ev) \
        ((ev)->dest.client = SND_SEQ_ADDRESS_BROADCAST,\
         (ev)->dest.port = SND_SEQ_ADDRESS_BROADCAST)

#define snd_seq_ev_set_source(ev,p) \
        ((ev)->source.port = (p))

#define snd_seq_ev_set_direct(ev) \
        ((ev)->queue = SND_SEQ_QUEUE_DIRECT)

#define snd_seq_ev_schedule_tick(ev, q, relative, ttick) \
        ((ev)->flags &= ~(SND_SEQ_TIME_STAMP_MASK | SND_SEQ_TIME_MODE_MASK),\
         (ev)->flags |= SND_SEQ_TIME_STAMP_TICK,\
         (ev)->flags |= (relative) ? SND_SEQ_TIME_MODE_REL : SND_SEQ_TIME_MODE_ABS,\
         (ev)->time.tick = (ttick),\
         (ev)->queue = (q))

#define snd_seq_ev_schedule_real(ev, q, relative, rtime) \
        ((ev)->flags &= ~(SND_SEQ_TIME_STAMP_MASK | SND_SEQ_TIME_MODE_MASK),\
         (ev)->flags |= SND_SEQ_TIME_STAMP_REAL,\
         (ev)->flags |= (relative) ? SND_SEQ_TIME_MODE_REL : SND_SEQ_TIME_MODE_ABS,\
         (ev)->time.time = *(rtime),\
         (ev)->queue = (q))

#define snd_seq_ev_set_priority(ev, high_prior) \
        ((ev)->flags &= ~SND_SEQ_PRIORITY_MASK,\
         (ev)->flags |= (high_prior) ? SND_SEQ_PRIORITY_HIGH : SND_SEQ_PRIORITY_NORMAL)

#define snd_seq_ev_set_fixed(ev) \
        ((ev)->flags &= ~SND_SEQ_EVENT_LENGTH_MASK,\
         (ev)->flags |= SND_SEQ_EVENT_LENGTH_FIXED)

#define snd_seq_ev_set_variable(ev, datalen, dataptr) \
        ((ev)->flags &= ~SND_SEQ_EVENT_LENGTH_MASK,\
         (ev)->flags |= SND_SEQ_EVENT_LENGTH_VARIABLE,\
         (ev)->data.ext.len = (datalen),\
         (ev)->data.ext.ptr = (dataptr))

#define snd_seq_ev_set_varusr(ev, datalen, dataptr) \
        ((ev)->flags &= ~SND_SEQ_EVENT_LENGTH_MASK,\
         (ev)->flags |= SND_SEQ_EVENT_LENGTH_VARUSR,\
         (ev)->data.ext.len = (datalen),\
         (ev)->data.ext.ptr = (dataptr))

#define snd_seq_ev_set_queue_control(ev, typ, q, val) \
        ((ev)->type = (typ),\
         snd_seq_ev_set_dest(ev, SND_SEQ_CLIENT_SYSTEM, SND_SEQ_PORT_SYSTEM_TIMER),\
         (ev)->data.queue.queue = (q),\
         (ev)->data.queue.param.value = (val))

#define snd_seq_ev_set_queue_start(ev, q) \
        snd_seq_ev_set_queue_control(ev, SND_SEQ_EVENT_START, q, 0)

#define snd_seq_ev_set_queue_stop(ev, q) \
        snd_seq_ev_set_queue_control(ev, SND_SEQ_EVENT_STOP, q, 0)

#define snd_seq_ev_set_queue_continue(ev, q) \
        snd_seq_ev_set_queue_control(ev, SND_SEQ_EVENT_CONTINUE, q, 0)

#define snd_seq_ev_set_queue_tempo(ev, q, val) \
        snd_seq_ev_set_queue_control(ev, SND_SEQ_EVENT_TEMPO, q, val)

#define snd_seq_ev_set_queue_pos_real(ev, q, rtime) \
        ((ev)->type = SND_SEQ_EVENT_SETPOS_TIME,\
         snd_seq_ev_set_dest(ev, SND_SEQ_CLIENT_SYSTEM, SND_SEQ_PORT_SYSTEM_TIMER),\
         (ev)->data.queue.queue = (q),\
         (ev)->data.queue.param.time.time = *(rtime))

#define snd_seq_ev_set_queue_pos_tick(ev, q, ttime) \
        ((ev)->type = SND_SEQ_EVENT_SETPOS_TICK,\
         snd_seq_ev_set_dest(ev, SND_SEQ_CLIENT_SYSTEM, SND_SEQ_PORT_SYSTEM_TIMER),\
         (ev)->data.queue.queue = (q),\
         (ev)->data.queue.param.time.tick = (ttime))

/* set and send a queue control event */
int snd_seq_control_queue(snd_seq_t *seq, int q, int type, int value, snd_seq_event_t *ev);

#define snd_seq_start_queue(seq, q, ev) \
        snd_seq_control_queue(seq, q, SND_SEQ_EVENT_START, 0, ev)

#define snd_seq_stop_queue(seq, q, ev) \
        snd_seq_control_queue(seq, q, SND_SEQ_EVENT_STOP, 0, ev)

#define snd_seq_continue_queue(seq, q, ev) \
        snd_seq_control_queue(seq, q, SND_SEQ_EVENT_CONTINUE, 0, ev)

#define snd_seq_change_queue_tempo(seq, q, tempo, ev) \
        snd_seq_control_queue(seq, q, SND_SEQ_EVENT_TEMPO, tempo, ev)

/* create a port - simple version - return the port number */
int snd_seq_create_simple_port(snd_seq_t *seq, const char *name,
                               unsigned int caps, unsigned int type);
/* delete the port */
int snd_seq_delete_simple_port(snd_seq_t *seq, int port);

/* simple subscription between this port and another port
   (w/o exclusive & time conversion)
   */
int snd_seq_connect_from(snd_seq_t *seq, int my_port, int src_client, int src_port);
int snd_seq_connect_to(snd_seq_t *seq, int my_port, int dest_client, int dest_port);
int snd_seq_disconnect_from(snd_seq_t *seq, int my_port, int src_client, int src_port);
int snd_seq_disconnect_to(snd_seq_t *seq, int my_port, int dest_client, int dest_port);

/*
 * set client information
 */
int snd_seq_set_client_name(snd_seq_t *seq, const char *name);
int snd_seq_set_client_event_filter(snd_seq_t *seq, int event_type);
int snd_seq_set_client_pool_output(snd_seq_t *seq, size_t size);
int snd_seq_set_client_pool_output_room(snd_seq_t *seq, size_t size);
int snd_seq_set_client_pool_input(snd_seq_t *seq, size_t size);
/* sync output queue */
int snd_seq_sync_output_queue(snd_seq_t *seq);

/*
 * parse the given string and get the sequencer address
 */
int snd_seq_parse_address(snd_seq_t *seq, snd_seq_addr_t *addr, const char *str);

/*
 * reset client input/output pool
 */
int snd_seq_reset_pool_output(snd_seq_t *seq);
int snd_seq_reset_pool_input(snd_seq_t *seq);

#define snd_seq_ev_set_note(ev, ch, key, vel, dur) \
        ((ev)->type = SND_SEQ_EVENT_NOTE,\
         snd_seq_ev_set_fixed(ev),\
         (ev)->data.note.channel = (ch),\
         (ev)->data.note.note = (key),\
         (ev)->data.note.velocity = (vel),\
         (ev)->data.note.duration = (dur))

#define snd_seq_ev_set_noteon(ev, ch, key, vel) \
        ((ev)->type = SND_SEQ_EVENT_NOTEON,\
         snd_seq_ev_set_fixed(ev),\
         (ev)->data.note.channel = (ch),\
         (ev)->data.note.note = (key),\
         (ev)->data.note.velocity = (vel))

#define snd_seq_ev_set_noteoff(ev, ch, key, vel) \
        ((ev)->type = SND_SEQ_EVENT_NOTEOFF,\
         snd_seq_ev_set_fixed(ev),\
         (ev)->data.note.channel = (ch),\
         (ev)->data.note.note = (key),\
         (ev)->data.note.velocity = (vel))

#define snd_seq_ev_set_keypress(ev,ch,key,vel) \
        ((ev)->type = SND_SEQ_EVENT_KEYPRESS,\
         snd_seq_ev_set_fixed(ev),\
         (ev)->data.note.channel = (ch),\
         (ev)->data.note.note = (key),\
         (ev)->data.note.velocity = (vel))

#define snd_seq_ev_set_controller(ev,ch,cc,val) \
        ((ev)->type = SND_SEQ_EVENT_CONTROLLER,\
         snd_seq_ev_set_fixed(ev),\
         (ev)->data.control.channel = (ch),\
         (ev)->data.control.param = (cc),\
         (ev)->data.control.value = (val))

#define snd_seq_ev_set_pgmchange(ev,ch,val) \
        ((ev)->type = SND_SEQ_EVENT_PGMCHANGE,\
         snd_seq_ev_set_fixed(ev),\
         (ev)->data.control.channel = (ch),\
         (ev)->data.control.value = (val))

#define snd_seq_ev_set_pitchbend(ev,ch,val) \
        ((ev)->type = SND_SEQ_EVENT_PITCHBEND,\
         snd_seq_ev_set_fixed(ev),\
         (ev)->data.control.channel = (ch),\
         (ev)->data.control.value = (val))

#define snd_seq_ev_set_chanpress(ev,ch,val) \
        ((ev)->type = SND_SEQ_EVENT_CHANPRESS,\
         snd_seq_ev_set_fixed(ev),\
         (ev)->data.control.channel = (ch),\
         (ev)->data.control.value = (val))

#define snd_seq_ev_set_sysex(ev,datalen,dataptr) \
        ((ev)->type = SND_SEQ_EVENT_SYSEX,\
         snd_seq_ev_set_variable(ev, datalen, dataptr))

#ifdef __cplusplus
}
#endif

#endif /* __ALSA_SEQMID_H */