1 /* This file is part of Evoral.
2 * Copyright (C) 2008 David Robillard <http://drobilla.net>
3 * Copyright (C) 2000-2008 Paul Davis
5 * Evoral is free software; you can redistribute it and/or modify it under the
6 * terms of the GNU General Public License as published by the Free Software
7 * Foundation; either version 2 of the License, or (at your option) any later
10 * Evoral is distributed in the hope that it will be useful, but WITHOUT ANY
11 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
12 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 #ifndef EVORAL_TYPES_HPP
20 #define EVORAL_TYPES_HPP
27 #include "pbd/debug.h"
29 #include "evoral/visibility.h"
33 /** ID of an event (note or other). This must be operable on by glib
36 typedef int32_t event_id_t;
38 /** Musical time: beats relative to some defined origin */
39 typedef double MusicalTime;
41 const MusicalTime MaxMusicalTime = DBL_MAX;
42 const MusicalTime MinMusicalTime = DBL_MIN;
44 static inline bool musical_time_equal (MusicalTime a, MusicalTime b) {
45 /* acceptable tolerance is 1 tick. Nice if there was no magic number here
46 * -> Timecode::BBT_Time::ticks_per_beat */
47 return fabs (a - b) <= (1.0/1920.0);
50 static inline bool musical_time_less_than (MusicalTime a, MusicalTime b) {
51 /* acceptable tolerance is 1 tick. Nice if there was no magic number here */
52 if (fabs (a - b) <= (1.0/1920.0)) {
53 return false; /* effectively identical */
59 static inline bool musical_time_greater_than (MusicalTime a, MusicalTime b) {
60 /* acceptable tolerance is 1 tick. Nice if there was no magic number here */
61 if (fabs (a - b) <= (1.0/1920.0)) {
62 return false; /* effectively identical */
68 static inline bool musical_time_greater_or_equal_to (MusicalTime a, MusicalTime b) {
69 /* acceptable tolerance is 1 tick. Nice if there was no magic number here */
70 if (fabs (a - b) <= (1.0/1920.0)) {
71 return true; /* effectively identical, note the "or_equal_to" */
77 /** Type of an event (opaque, mapped by application) */
78 typedef uint32_t EventType;
84 LIBEVORAL_API extern uint64_t Sequence;
85 LIBEVORAL_API extern uint64_t Note;
86 LIBEVORAL_API extern uint64_t ControlList;
90 #endif // EVORAL_TYPES_HPP