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 return fabs (a - b) <= (1.0/1920.0);
49 static inline bool musical_time_less_than (MusicalTime a, MusicalTime b) {
50 /* acceptable tolerance is 1 tick. Nice if there was no magic number here */
51 if (fabs (a - b) <= (1.0/1920.0)) {
52 return false; /* effectively identical */
58 static inline bool musical_time_greater_than (MusicalTime a, MusicalTime b) {
59 /* acceptable tolerance is 1 tick. Nice if there was no magic number here */
60 if (fabs (a - b) <= (1.0/1920.0)) {
61 return false; /* effectively identical */
67 static inline bool musical_time_greater_or_equal_to (MusicalTime a, MusicalTime b) {
68 /* acceptable tolerance is 1 tick. Nice if there was no magic number here */
69 if (fabs (a - b) <= (1.0/1920.0)) {
70 return true; /* effectively identical, note the "or_equal_to" */
76 /** Type of an event (opaque, mapped by application) */
77 typedef uint32_t EventType;
83 LIBEVORAL_API extern uint64_t Sequence;
84 LIBEVORAL_API extern uint64_t Note;
85 LIBEVORAL_API extern uint64_t ControlList;
89 #endif // EVORAL_TYPES_HPP