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Diffstat (limited to 'libs/ardour/ardour/transport_master_manager.h')
| -rw-r--r-- | libs/ardour/ardour/transport_master_manager.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/libs/ardour/ardour/transport_master_manager.h b/libs/ardour/ardour/transport_master_manager.h new file mode 100644 index 0000000000..4c4159cb6f --- /dev/null +++ b/libs/ardour/ardour/transport_master_manager.h @@ -0,0 +1,114 @@ +/* + * Copyright (C) 2018 Paul Davis (paul@linuxaudiosystems.com) + * + * 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, 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef __ardour_transport_master_manager_h__ +#define __ardour_transport_master_manager_h__ + +#include <string> + +#include <boost/noncopyable.hpp> + +#include "ardour/transport_master.h" +#include "ardour/types.h" + +namespace ARDOUR { + +class UI_TransportMaster; + +class LIBARDOUR_API TransportMasterManager : public boost::noncopyable +{ + public: + ~TransportMasterManager (); + + int init (); + + static TransportMasterManager& instance(); + + typedef std::list<boost::shared_ptr<TransportMaster> > TransportMasters; + + int add (SyncSource type, std::string const & name); + int remove (std::string const & name); + void clear (); + + PBD::Signal1<void,boost::shared_ptr<TransportMaster> > Added; + PBD::Signal1<void,boost::shared_ptr<TransportMaster> > Removed; // null argument means "clear" + + double pre_process_transport_masters (pframes_t, samplepos_t session_transport_position); + + double get_current_speed_in_process_context() const { return _master_speed; } + samplepos_t get_current_position_in_process_context() const { return _master_position; } + + boost::shared_ptr<TransportMaster> current() const { return _current_master; } + int set_current (boost::shared_ptr<TransportMaster>); + int set_current (SyncSource); + int set_current (std::string const &); + + PBD::Signal2<void,boost::shared_ptr<TransportMaster>, boost::shared_ptr<TransportMaster> > CurrentChanged; + + int set_state (XMLNode const &, int); + XMLNode& get_state(); + + void set_session (Session*); + Session* session() const { return _session; } + + bool master_invalid_this_cycle() const { return _master_invalid_this_cycle; } + + boost::shared_ptr<TransportMaster> master_by_type (SyncSource src) const; + boost::shared_ptr<TransportMaster> master_by_name (std::string const &) const; + + TransportMasters const & transport_masters() const { return _transport_masters; } + + static const std::string state_node_name; + + private: + TransportMasterManager(); + + TransportMasters _transport_masters; + mutable Glib::Threads::RWLock lock; + double _master_speed; + samplepos_t _master_position; + boost::shared_ptr<TransportMaster> _current_master; + Session* _session; + + bool _master_invalid_this_cycle; + + // a DLL to chase the transport master + + int transport_dll_initstate; + double t0; /// time at the beginning of ??? + double t1; /// calculated end of the ??? + double e2; /// second order loop error + double bandwidth; /// DLL filter bandwidth + double b, c, omega; /// DLL filter coefficients + + void init_transport_master_dll (double speed, samplepos_t pos); + int master_dll_initstate; + + static TransportMasterManager* _instance; + + int add_locked (boost::shared_ptr<TransportMaster>); + double compute_matching_master_speed (pframes_t nframes, samplepos_t, bool& locate_required); + int set_current_locked (boost::shared_ptr<TransportMaster>); + + PBD::ScopedConnection config_connection; + void parameter_changed (std::string const & what); +}; + +} // namespace ARDOUR + +#endif /* __ardour_transport_master_manager_h__ */ |