Mercurial > hg > svcore
view plugin/api/alsa/seq.h @ 443:381ec750eeee
* Add beginnings of transform-search-by-text function
author | Chris Cannam |
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date | Mon, 22 Sep 2008 15:44:03 +0000 |
parents | da6937383da8 |
children | 48e9f538e6e9 |
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/* DSSI ALSA compatibility library * * This library provides for Mac OS X the ALSA snd_seq_event_t handling * necessary to compile and run DSSI. It was extracted from alsa-lib 1.0.8. */ /** * \file <alsa/seq.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_H #define __ALSA_SEQ_H #ifdef __cplusplus extern "C" { #endif /** * \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 */