103 lines
3.0 KiB
C++
103 lines
3.0 KiB
C++
/*
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* Copyright (C) 2008-2015 David Robillard <d@drobilla.net>
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* Copyright (C) 2009-2017 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2010-2011 Carl Hetherington <carl@carlh.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __ardour_midi_state_tracker_h__
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#define __ardour_midi_state_tracker_h__
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#include <glibmm/threads.h>
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#include "temporal/beats.h"
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#include "ardour/midi_buffer.h"
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#include "ardour/source.h"
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namespace Evoral {
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template <typename T> class EventSink;
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template <typename T> class EventList;
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}
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namespace ARDOUR {
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class MidiSource;
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/** Tracks played notes, so they can be resolved in potential stuck note
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* situations (e.g. looping, transport stop, etc).
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*/
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class LIBARDOUR_API MidiNoteTracker
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{
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public:
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MidiNoteTracker();
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virtual ~MidiNoteTracker() {}
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virtual void track (const uint8_t* evbuf);
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virtual void dump (std::ostream&);
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virtual void reset ();
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void track (const MidiBuffer::const_iterator& from, const MidiBuffer::const_iterator& to);
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void add (uint8_t note, uint8_t chn);
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void remove (uint8_t note, uint8_t chn);
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void resolve_notes (MidiBuffer& buffer, samplepos_t time, bool reset = true);
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void resolve_notes (Evoral::EventSink<samplepos_t>& buffer, samplepos_t time);
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void resolve_notes (MidiSource& src, const Source::WriterLock& lock, Temporal::Beats time);
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void flush_notes (MidiBuffer& buffer, samplepos_t time, bool reset = true);
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bool empty() const { return _on == 0; }
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uint16_t on() const { return _on; }
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bool active (uint8_t note, uint8_t channel) {
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return _active_notes[(channel*128)+note] > 0;
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}
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template<typename Time>
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void track (const Evoral::Event<Time>& ev) {
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track (ev.buffer());
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}
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private:
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uint8_t _active_notes[128*16];
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uint16_t _on;
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void push_notes (MidiBuffer &dst, samplepos_t time, bool reset, int cmd, int velocity);
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};
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class LIBARDOUR_API MidiStateTracker : public MidiNoteTracker
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{
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public:
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MidiStateTracker ();
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~MidiStateTracker() {}
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void track (const uint8_t* evbuf);
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void dump (std::ostream&);
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void reset ();
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void flush (MidiBuffer&, samplepos_t, bool reset);
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void resolve_state (Evoral::EventSink<samplepos_t>&, Evoral::EventList<samplepos_t> const&, samplepos_t time, bool reset = true);
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private:
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uint8_t program[16];
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uint16_t bender[16];
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uint16_t pressure[16];
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uint8_t control[16][127];
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};
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} // namespace ARDOUR
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#endif // __ardour_midi_state_tracker_h__
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