Add missing files.

git-svn-id: svn://localhost/ardour2/branches/3.0@3908 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 51 insertions, 0 deletions

diff --git a/libs/ardour/ardour/midi_state_tracker.h b/libs/ardour/ardour/midi_state_tracker.h
new file mode 100644
index 0000000000..ff9fb71ccc
--- /dev/null
+++ b/libs/ardour/ardour/midi_state_tracker.h
@@ -0,0 +1,51 @@
+/*
+    Copyright (C) 2008 Paul Davis 
+    Author: Torben Hohn
+    
+    This program 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.
+    
+    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 General Public License
+    for more 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.,
+    675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifndef __ardour_midi_state_tracker_h__
+#define __ardour_midi_state_tracker_h__
+
+#include <bitset>
+
+#include <ardour/midi_buffer.h>
+
+
+namespace ARDOUR {
+
+
+/** Tracks played notes, so they can be resolved in potential stuck note
+ * situations (e.g. looping, transport stop, etc).
+ */
+class MidiStateTracker
+{
+public:
+	MidiStateTracker();
+
+	bool track (const MidiBuffer::iterator& from, const MidiBuffer::iterator& to);
+	void resolve_notes (MidiBuffer& buffer, nframes_t time);
+
+private:
+	void track_note_onoffs(Evoral::MIDIEvent& event);
+
+	std::bitset<128*16> _active_notes;
+};
+
+
+} // namespace ARDOUR
+
+#endif // __ardour_midi_state_tracker_h__