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/*
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(const Evoral::MIDIEvent& event);
std::bitset<128*16> _active_notes;
};
} // namespace ARDOUR
#endif // __ardour_midi_state_tracker_h__
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