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-rw-r--r--libs/ardour/ardour/slave.h153
1 files changed, 0 insertions, 153 deletions
diff --git a/libs/ardour/ardour/slave.h b/libs/ardour/ardour/slave.h
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--- a/libs/ardour/ardour/slave.h
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-/*
- Copyright (C) 2002 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_slave_h__
-#define __ardour_slave_h__
-
-#include <vector>
-
-#include <jack/jack.h>
-
-#include <sigc++/signal.h>
-#include <ardour/ardour.h>
-#include <midi++/parser.h>
-#include <midi++/types.h>
-
-namespace MIDI {
- class Port;
-}
-
-namespace ARDOUR {
-class Session;
-
-class Slave {
- public:
- Slave() { }
- virtual ~Slave() {}
-
- virtual bool speed_and_position (float&, nframes_t&) = 0;
- virtual bool locked() const = 0;
- virtual bool ok() const = 0;
- virtual bool starting() const { return false; }
- virtual nframes_t resolution() const = 0;
- virtual bool requires_seekahead () const = 0;
- virtual bool is_always_synced() const { return false; }
-};
-
-
-class MTC_Slave : public Slave, public sigc::trackable {
- public:
- MTC_Slave (Session&, MIDI::Port&);
- ~MTC_Slave ();
-
- void rebind (MIDI::Port&);
- bool speed_and_position (float&, nframes_t&);
-
- bool locked() const;
- bool ok() const;
- void handle_locate (const MIDI::byte*);
-
- nframes_t resolution() const;
- bool requires_seekahead () const { return true; }
-
- private:
- Session& session;
- MIDI::Port* port;
- std::vector<sigc::connection> connections;
- bool can_notify_on_unknown_rate;
-
- struct SafeTime {
-
-
- int guard1;
- //SMPTE_Time mtc;
- nframes_t position;
- nframes_t timestamp;
- int guard2;
-
- SafeTime() {
- guard1 = 0;
- guard2 = 0;
- timestamp = 0;
- }
- };
-
- SafeTime current;
- nframes_t mtc_frame; /* current time */
- nframes_t last_inbound_frame; /* when we got it; audio clocked */
-
- float mtc_speed;
- nframes_t first_mtc_frame;
- nframes_t first_mtc_time;
-
- static const int32_t accumulator_size = 128;
- float accumulator[accumulator_size];
- int32_t accumulator_index;
- bool have_first_accumulated_speed;
-
- void reset ();
- void update_mtc_qtr (MIDI::Parser&);
- void update_mtc_time (const MIDI::byte *, bool);
- void update_mtc_status (MIDI::Parser::MTC_Status);
- void read_current (SafeTime *) const;
-};
-
-class ADAT_Slave : public Slave
-{
- public:
- ADAT_Slave () {}
- ~ADAT_Slave () {}
-
- bool speed_and_position (float& speed, nframes_t& pos) {
- speed = 0;
- pos = 0;
- return false;
- }
-
- bool locked() const { return false; }
- bool ok() const { return false; }
- nframes_t resolution() const { return 1; }
- bool requires_seekahead () const { return true; }
-};
-
-class JACK_Slave : public Slave
-{
- public:
- JACK_Slave (jack_client_t*);
- ~JACK_Slave ();
-
- bool speed_and_position (float& speed, nframes_t& pos);
-
- bool starting() const { return _starting; }
- bool locked() const;
- bool ok() const;
- nframes_t resolution() const { return 1; }
- bool requires_seekahead () const { return false; }
- void reset_client (jack_client_t* jack);
- bool is_always_synced() const { return true; }
-
- private:
- jack_client_t* jack;
- float speed;
- bool _starting;
-};
-
-} /* namespace */
-
-#endif /* __ardour_slave_h__ */