73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
/*
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* Copyright (C) 2008-2009 Hans Baier <hansfbaier@googlemail.com>
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* Copyright (C) 2009-2010 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 Carl Hetherington <carl@carlh.net>
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* Copyright (C) 2013 Michael Fisher <mfisher31@gmail.com>
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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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#include <boost/noncopyable.hpp>
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#include <boost/scoped_ptr.hpp>
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#include "pbd/signals.h"
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#include "ardour/libardour_visibility.h"
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#include "ardour/session_handle.h"
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#include "ardour/types.h"
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#ifndef __libardour_ticker_h__
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#define __libardour_ticker_h__
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namespace ARDOUR
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{
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class Session;
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class MidiPort;
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class LIBARDOUR_API MidiClockTicker : boost::noncopyable
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{
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public:
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MidiClockTicker (Session&);
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virtual ~MidiClockTicker ();
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void tick (samplepos_t, samplepos_t, pframes_t, samplecnt_t);
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private:
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ARDOUR::Session& _session;
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std::shared_ptr<MidiPort> _midi_port;
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bool _rolling;
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samplepos_t _next_tick;
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uint32_t _beat_pos;
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uint32_t _clock_cnt;
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samplepos_t _transport_pos;
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LatencyRange _mclk_out_latency;
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PBD::ScopedConnection _latency_connection;
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void reset ();
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void resync_latency (bool);
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double one_ppqn_in_samples (samplepos_t transport_position) const;
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void send_midi_clock_event (pframes_t offset, pframes_t nframes);
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void send_start_event (pframes_t offset, pframes_t nframes);
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void send_continue_event (pframes_t offset, pframes_t nframes);
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void send_stop_event (pframes_t offset, pframes_t nframes);
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void send_position_event (uint32_t midi_clocks, pframes_t offset, pframes_t nframes);
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};
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} // namespace ARDOUR
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#endif /* __libardour_ticker_h__ */
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