/*
- Copyright (C) 2002-2004 Paul Davis
+ Copyright (C) 2002-2004 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
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id$
*/
#ifndef __ardour_audioengine_h__
#include <exception>
#include <string>
-#include <sigc++/signal.h>
#include <glibmm/thread.h>
-#include <ardour/ardour.h>
+#include "pbd/rcu.h"
+#include "pbd/signals.h"
+
+#include "ardour/ardour.h"
#include <jack/jack.h>
#include <jack/transport.h>
+#include "ardour/data_type.h"
+#include "ardour/session_handle.h"
+#include "ardour/types.h"
+
namespace ARDOUR {
-class Session;
+class InternalPort;
+class MidiPort;
class Port;
+class Session;
-class AudioEngine : public sigc::trackable
+class AudioEngine : public SessionHandlePtr
{
public:
+ typedef std::set<Port*> Ports;
+
AudioEngine (std::string client_name);
virtual ~AudioEngine ();
-
- jack_client_t* jack() const { return _jack; }
+
+ jack_client_t* jack() const;
bool connected() const { return _jack != 0; }
+ bool is_realtime () const;
+
std::string client_name() const { return jack_client_name; }
int reconnect_to_jack ();
bool will_reconnect_at_halt ();
void set_reconnect_at_halt (bool);
- int stop ();
+ int stop (bool forever = false);
int start ();
bool running() const { return _running; }
Glib::Mutex& process_lock() { return _process_lock; }
- jack_nframes_t frame_rate();
- jack_nframes_t frames_per_cycle();
+ nframes_t frame_rate() const;
+ nframes_t frames_per_cycle() const;
+
+ size_t raw_buffer_size(DataType t);
int usecs_per_cycle () const { return _usecs_per_cycle; }
- jack_nframes_t frames_since_cycle_start () {
- if (!_running || !_jack) return 0;
- return jack_frames_since_cycle_start (_jack);
+ bool get_sync_offset (nframes_t& offset) const;
+
+ nframes_t frames_since_cycle_start () {
+ jack_client_t* _priv_jack = _jack;
+ if (!_running || !_priv_jack) return 0;
+ return jack_frames_since_cycle_start (_priv_jack);
}
- jack_nframes_t frame_time () {
- if (!_running || !_jack) return 0;
- return jack_frame_time (_jack);
+ nframes_t frame_time () {
+ jack_client_t* _priv_jack = _jack;
+ if (!_running || !_priv_jack) return 0;
+ return jack_frame_time (_priv_jack);
}
- jack_nframes_t transport_frame () const {
- if (!_running || !_jack) return 0;
- return jack_get_current_transport_frame (_jack);
+ nframes_t transport_frame () const {
+ const jack_client_t* _priv_jack = _jack;
+ if (!_running || !_priv_jack) return 0;
+ return jack_get_current_transport_frame (_priv_jack);
}
-
- int request_buffer_size (jack_nframes_t);
-
- jack_nframes_t set_monitor_check_interval (jack_nframes_t);
-
- float get_cpu_load() {
- if (!_running || !_jack) return 0;
- return jack_cpu_load (_jack);
+
+ int request_buffer_size (nframes_t);
+
+ nframes_t set_monitor_check_interval (nframes_t);
+ nframes_t processed_frames() const { return _processed_frames; }
+
+ float get_cpu_load() {
+ jack_client_t* _priv_jack = _jack;
+ if (!_running || !_priv_jack) return 0;
+ return jack_cpu_load (_priv_jack);
}
void set_session (Session *);
- void remove_session ();
+ void remove_session (); // not a replacement for SessionHandle::session_going_away()
class PortRegistrationFailure : public std::exception {
- public:
- virtual const char *what() const throw() { return "failed port registration"; }
+ public:
+ PortRegistrationFailure (const char* why = "") {
+ reason = why;
+ }
+ virtual const char *what() const throw() { return reason; }
+
+ private:
+ const char* reason;
};
class NoBackendAvailable : public std::exception {
- public:
+ public:
virtual const char *what() const throw() { return "could not connect to engine backend"; }
};
- Port *register_audio_input_port (const std::string& portname);
- Port *register_audio_output_port (const std::string& portname);
- int unregister_port (Port *);
-
+ Port *register_input_port (DataType, const std::string& portname);
+ Port *register_output_port (DataType, const std::string& portname);
+ int unregister_port (Port &);
+
+ void split_cycle (nframes_t offset);
+
int connect (const std::string& source, const std::string& destination);
int disconnect (const std::string& source, const std::string& destination);
- int disconnect (Port *);
-
+ int disconnect (Port &);
+
const char ** get_ports (const std::string& port_name_pattern, const std::string& type_name_pattern, uint32_t flags);
- uint32_t n_physical_outputs () const;
- uint32_t n_physical_inputs () const;
+ bool can_request_hardware_monitoring ();
- std::string get_nth_physical_output (uint32_t n) {
- return get_nth_physical (n, JackPortIsInput);
+ uint32_t n_physical_outputs (DataType type) const;
+ uint32_t n_physical_inputs (DataType type) const;
+
+ void get_physical_outputs (DataType type, std::vector<std::string>&);
+ void get_physical_inputs (DataType type, std::vector<std::string>&);
+
+ std::string get_nth_physical_output (DataType type, uint32_t n) {
+ return get_nth_physical (type, n, JackPortIsInput);
}
- std::string get_nth_physical_input (uint32_t n) {
- return get_nth_physical (n, JackPortIsOutput);
+ std::string get_nth_physical_input (DataType type, uint32_t n) {
+ return get_nth_physical (type, n, JackPortIsOutput);
}
- jack_nframes_t get_port_total_latency (const Port&);
void update_total_latencies ();
+ void update_total_latency (const Port&);
- /* the caller may not delete the object pointed to by
- the return value
- */
-
- Port *get_port_by_name (const std::string& name, bool keep = true);
+ Port *get_port_by_name (const std::string &);
+ Port *get_port_by_name_locked (const std::string &);
enum TransportState {
TransportStopped = JackTransportStopped,
void transport_start ();
void transport_stop ();
- void transport_locate (jack_nframes_t);
+ void transport_locate (nframes_t);
TransportState transport_state ();
int reset_timebase ();
bool freewheeling() const { return _freewheeling; }
/* this signal is sent for every process() cycle while freewheeling.
- the regular process() call to session->process() is not made.
+_ the regular process() call to session->process() is not made.
*/
- sigc::signal<int,jack_nframes_t> Freewheel;
+ PBD::Signal1<int,nframes_t> Freewheel;
- sigc::signal<void> Xrun;
+ PBD::Signal0<void> Xrun;
/* this signal is if JACK notifies us of a graph order event */
- sigc::signal<void> GraphReordered;
+ PBD::Signal0<void> GraphReordered;
/* this signal is emitted if the sample rate changes */
- sigc::signal<void,jack_nframes_t> SampleRateChanged;
+ PBD::Signal1<void,nframes_t> SampleRateChanged;
/* this signal is sent if JACK ever disconnects us */
- sigc::signal<void> Halted;
+ PBD::Signal0<void> Halted;
/* these two are emitted when the engine itself is
started and stopped
*/
- sigc::signal<void> Running;
- sigc::signal<void> Stopped;
+ PBD::Signal0<void> Running;
+ PBD::Signal0<void> Stopped;
+
+ /* this signal is emitted if a JACK port is registered or unregistered */
+
+ PBD::Signal0<void> PortRegisteredOrUnregistered;
std::string make_port_name_relative (std::string);
std::string make_port_name_non_relative (std::string);
- private:
- ARDOUR::Session *session;
- jack_client_t *_jack;
- std::string jack_client_name;
- Glib::Mutex port_lock;
- Glib::Mutex _process_lock;
- Glib::Mutex session_remove_lock;
- Glib::Cond session_removed;
- bool session_remove_pending;
- bool _running;
- bool _has_run;
- jack_nframes_t _buffer_size;
- jack_nframes_t _frame_rate;
- jack_nframes_t monitor_check_interval;
- jack_nframes_t last_monitor_check;
- jack_nframes_t _processed_frames;
- bool _freewheeling;
- bool _freewheel_thread_registered;
- sigc::slot<int,jack_nframes_t> freewheel_action;
- bool reconnect_on_halt;
- int _usecs_per_cycle;
-
- typedef std::set<Port*> Ports;
- Ports ports;
+ static AudioEngine* instance() { return _instance; }
+ void died ();
- int process_callback (jack_nframes_t nframes);
+ private:
+ static AudioEngine* _instance;
+
+ jack_client_t* volatile _jack; /* could be reset to null by SIGPIPE or another thread */
+ std::string jack_client_name;
+ Glib::Mutex _process_lock;
+ Glib::Cond session_removed;
+ bool session_remove_pending;
+ bool _running;
+ bool _has_run;
+ mutable nframes_t _buffer_size;
+ std::map<DataType,size_t> _raw_buffer_sizes;
+ mutable nframes_t _frame_rate;
+ /// number of frames between each check for changes in monitor input
+ nframes_t monitor_check_interval;
+ /// time of the last monitor check in frames
+ nframes_t last_monitor_check;
+ /// the number of frames processed since start() was called
+ nframes_t _processed_frames;
+ bool _freewheeling;
+ bool _freewheel_pending;
+ bool _freewheel_thread_registered;
+ boost::function<int(nframes_t)> freewheel_action;
+ bool reconnect_on_halt;
+ int _usecs_per_cycle;
+
+ SerializedRCUManager<Ports> ports;
+
+ Port *register_port (DataType type, const std::string& portname, bool input);
+
+ int process_callback (nframes_t nframes);
void remove_all_ports ();
- typedef std::pair<std::string,std::string> PortConnection;
- typedef std::list<PortConnection> PortConnections;
+ std::string get_nth_physical (DataType type, uint32_t n, int flags);
- PortConnections port_connections;
- void remove_connections_for (Port*);
-
- std::string get_nth_physical (uint32_t which, int flags);
+ void port_registration_failure (const std::string& portname);
static int _xrun_callback (void *arg);
static int _graph_order_callback (void *arg);
- static int _process_callback (jack_nframes_t nframes, void *arg);
- static int _sample_rate_callback (jack_nframes_t nframes, void *arg);
- static int _bufsize_callback (jack_nframes_t nframes, void *arg);
- static void _jack_timebase_callback (jack_transport_state_t, jack_nframes_t, jack_position_t*, int, void*);
+ static int _process_callback (nframes_t nframes, void *arg);
+ static int _sample_rate_callback (nframes_t nframes, void *arg);
+ static int _bufsize_callback (nframes_t nframes, void *arg);
+ static void _jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int, void*);
static int _jack_sync_callback (jack_transport_state_t, jack_position_t*, void *arg);
static void _freewheel_callback (int , void *arg);
+ static void _registration_callback (jack_port_id_t, int, void *);
- void jack_timebase_callback (jack_transport_state_t, jack_nframes_t, jack_position_t*, int);
+ void jack_timebase_callback (jack_transport_state_t, nframes_t, jack_position_t*, int);
int jack_sync_callback (jack_transport_state_t, jack_position_t*);
- int jack_bufsize_callback (jack_nframes_t);
- int jack_sample_rate_callback (jack_nframes_t);
-
- static void halted (void *);
+ int jack_bufsize_callback (nframes_t);
+ int jack_sample_rate_callback (nframes_t);
int connect_to_jack (std::string client_name);
+ static void halted (void *);
+
void meter_thread ();
void start_metering_thread ();
- Glib::Thread* m_meter_thread;
- mutable gint m_meter_exit;
+ void stop_metering_thread ();
+
+ Glib::Thread* m_meter_thread;
+ static gint m_meter_exit;
};
-}; /* namespace ARDOUR */
+} // namespace ARDOUR
#endif /* __ardour_audioengine_h__ */
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