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/*
Copyright (C) 2011 Paul Davis
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_playlist_source_h__
#define __ardour_midi_playlist_source_h__
#include <string>
#include <boost/shared_ptr.hpp>
#include "ardour/ardour.h"
#include "ardour/midi_source.h"
#include "ardour/playlist_source.h"
namespace ARDOUR {
class MidiPlaylist;
class MidiPlaylistSource : public MidiSource, public PlaylistSource {
public:
virtual ~MidiPlaylistSource ();
bool empty() const;
framecnt_t length (framepos_t) const;
framecnt_t read_unlocked (Sample *dst, framepos_t start, framecnt_t cnt) const;
framecnt_t write_unlocked (Sample *src, framecnt_t cnt);
XMLNode& get_state ();
int set_state (const XMLNode&, int version);
void append_event_unlocked_beats(const Evoral::Event<Evoral::MusicalTime>& ev);
void append_event_unlocked_frames(const Evoral::Event<framepos_t>& ev, framepos_t source_start);
void load_model(bool lock=true, bool force_reload=false);
void destroy_model();
protected:
friend class SourceFactory;
MidiPlaylistSource (Session&, const PBD::ID& orig, const std::string& name, boost::shared_ptr<MidiPlaylist>, uint32_t chn,
frameoffset_t begin, framecnt_t len, Source::Flag flags);
MidiPlaylistSource (Session&, const XMLNode&);
void flush_midi();
framepos_t read_unlocked (Evoral::EventSink<framepos_t>& dst,
framepos_t position,
framepos_t start, framecnt_t cnt,
MidiStateTracker* tracker) const;
framepos_t write_unlocked (MidiRingBuffer<framepos_t>& dst,
framepos_t position,
framecnt_t cnt);
private:
int set_state (const XMLNode&, int version, bool with_descendants);
framecnt_t _length;
};
} /* namespace */
#endif /* __ardour_midi_playlist_source_h__ */
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