MIDI region forking, plus Playlist::regions_to_read() fix forward ported from 2.X...

[ardour.git] / libs / evoral / evoral / types.hpp

diff --git a/libs/evoral/evoral/types.hpp b/libs/evoral/evoral/types.hpp
index e078a69a03e6ddb5e6436e6ba9d94c358b5d0352..a2cc814c69c4e09c29f8239c9ff395f42ad1cb31 100644 (file)
--- a/libs/evoral/evoral/types.hpp
+++ b/libs/evoral/evoral/types.hpp
@@ -1,16 +1,16 @@
 /* This file is part of Evoral.
  * Copyright (C) 2008 Dave Robillard <http://drobilla.net>
  * Copyright (C) 2000-2008 Paul Davis
- * 
+ *
  * Evoral is free software; you can redistribute it and/or modify it under the
  * terms of the GNU General Public License as published by the Free Software
  * Foundation; either version 2 of the License, or (at your option) any later
  * version.
- * 
+ *
  * Evoral 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 General Public License for details.
- * 
+ *
  * You should have received a copy of the GNU General Public License along
  * with this program; if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
@@ -19,13 +19,38 @@
 #ifndef EVORAL_TYPES_HPP
 #define EVORAL_TYPES_HPP
 
+#include <stdint.h>
+#include <list>
+#include <cmath>
+#include <cfloat>
+
+namespace Evoral {
+
 /** Frame count (i.e. length of time in audio frames) */
-typedef uint32_t nframes_t;
+typedef uint32_t FrameTime;
+
+/** Musical time: beats relative to some defined origin */
+typedef double MusicalTime;
+const MusicalTime MaxMusicalTime = DBL_MAX;
+const MusicalTime MinMusicalTime = DBL_MIN;
+
+static inline bool musical_time_equal (MusicalTime a, MusicalTime b) {
+       /* acceptable tolerance is 1 tick. Nice if there was no magic number here */
+       return fabs (a - b) <= (1.0/1920.0);
+}
+
+/** Type of an event (opaque, mapped by application) */
+typedef uint32_t EventType;
 
-/** Time-stamp of an event */
-typedef double timestamp_t;
+/** Type to describe the movement of a time range */
+template<typename T>
+struct RangeMove {
+       RangeMove (T f, FrameTime l, T t) : from (f), length (l), to (t) {}
+       T         from;   ///< start of the range
+       FrameTime length; ///< length of the range
+       T         to;     ///< new start of the range
+};
 
-/** Duration of time in timestamp_t units */
-typedef timestamp_t timedur_t;
+} // namespace Evoral
 
 #endif // EVORAL_TYPES_HPP