diff options
author | Paul Davis <paul@linuxaudiosystems.com> | 2008-06-02 21:41:35 +0000 |
---|---|---|
committer | Paul Davis <paul@linuxaudiosystems.com> | 2008-06-02 21:41:35 +0000 |
commit | 449aab3c465bbbf66d221fac3d7ea559f1720357 (patch) | |
tree | 6843cc40c88250a132acac701271f1504cd2df04 /libs/ardour/ardour/slave.h | |
parent | 9c0d7d72d70082a54f823cd44c0ccda5da64bb6f (diff) |
rollback to 3428, before the mysterious removal of libs/* at 3431/3432
git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf
Diffstat (limited to 'libs/ardour/ardour/slave.h')
-rw-r--r-- | libs/ardour/ardour/slave.h | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/libs/ardour/ardour/slave.h b/libs/ardour/ardour/slave.h new file mode 100644 index 0000000000..509f8fa9d2 --- /dev/null +++ b/libs/ardour/ardour/slave.h @@ -0,0 +1,153 @@ +/* + 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__ */ |