X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Faudioengine.cc;h=004ba33a6e235e4bc98731cee347d927ff5bf765;hb=80d9eaf96cd00f3084d18c32b4b31aabda0e6737;hp=b2a1fb6a0f562e745453582da63ed342452e1eb4;hpb=7bd41538d951c3e476655df741adfbebbb990bde;p=ardour.git diff --git a/libs/ardour/audioengine.cc b/libs/ardour/audioengine.cc index b2a1fb6a0f..004ba33a6e 100644 --- a/libs/ardour/audioengine.cc +++ b/libs/ardour/audioengine.cc @@ -1,5 +1,5 @@ /* - Copyright (C) 2002 Paul Davis + 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 @@ -15,30 +15,39 @@ along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - $Id$ */ #include #include #include +#include +#include +#include #include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#ifdef VST_SUPPORT -#include -#endif -#include +#include "pbd/pthread_utils.h" +#include "pbd/stacktrace.h" +#include "pbd/unknown_type.h" +#include "pbd/epa.h" + +#include + +#include "midi++/port.h" +#include "midi++/jack_midi_port.h" +#include "midi++/mmc.h" +#include "midi++/manager.h" + +#include "ardour/audio_port.h" +#include "ardour/audioengine.h" +#include "ardour/buffer.h" +#include "ardour/cycle_timer.h" +#include "ardour/internal_send.h" +#include "ardour/meter.h" +#include "ardour/midi_port.h" +#include "ardour/port.h" +#include "ardour/process_thread.h" +#include "ardour/session.h" #include "i18n.h" @@ -46,157 +55,228 @@ using namespace std; using namespace ARDOUR; using namespace PBD; -AudioEngine::AudioEngine (string client_name) - : ports (new Ports) +gint AudioEngine::m_meter_exit; +AudioEngine* AudioEngine::_instance = 0; + +#define GET_PRIVATE_JACK_POINTER(j) jack_client_t* _priv_jack = (jack_client_t*) (j); if (!_priv_jack) { return; } +#define GET_PRIVATE_JACK_POINTER_RET(j,r) jack_client_t* _priv_jack = (jack_client_t*) (j); if (!_priv_jack) { return r; } + +AudioEngine::AudioEngine (string client_name, string session_uuid) + : _jack (0) + , session_remove_pending (false) + , session_removal_countdown (-1) + , _running (false) + , _has_run (false) + , _buffer_size (0) + , _frame_rate (0) + , monitor_check_interval (INT32_MAX) + , last_monitor_check (0) + , _processed_frames (0) + , _freewheeling (false) + , _pre_freewheel_mmc_enabled (false) + , _usecs_per_cycle (0) + , port_remove_in_progress (false) + , m_meter_thread (0) + , _main_thread (0) + , ports (new Ports) { - session = 0; - session_remove_pending = false; - _running = false; - _has_run = false; - last_monitor_check = 0; - monitor_check_interval = max_frames; - _processed_frames = 0; - _freewheeling = false; - _usecs_per_cycle = 0; - _jack = 0; - _frame_rate = 0; - _buffer_size = 0; - _freewheeling = false; - _freewheel_thread_registered = false; + _instance = this; /* singleton */ - m_meter_thread = 0; - m_meter_exit = false; + g_atomic_int_set (&m_meter_exit, 0); - if (connect_to_jack (client_name)) { + if (connect_to_jack (client_name, session_uuid)) { throw NoBackendAvailable (); } - start_metering_thread(); - + Port::set_engine (this); } AudioEngine::~AudioEngine () { - if (_running) { - jack_client_close (_jack); - } + { + Glib::Mutex::Lock tm (_process_lock); + session_removed.signal (); + + if (_running) { + jack_client_close (_jack); + _jack = 0; + } - if(m_meter_thread) { - g_atomic_int_inc(&m_meter_exit); + stop_metering_thread (); } } +jack_client_t* +AudioEngine::jack() const +{ + return _jack; +} + void -_thread_init_callback (void *arg) +_thread_init_callback (void * /*arg*/) { /* make sure that anybody who needs to know about this thread knows about it. */ - PBD::ThreadCreatedWithRequestSize (pthread_self(), X_("Audioengine"), 4096); + pthread_set_name (X_("audioengine")); + + PBD::notify_gui_about_thread_creation ("gui", pthread_self(), X_("Audioengine"), 4096); + PBD::notify_gui_about_thread_creation ("midiui", pthread_self(), X_("Audioengine"), 128); + + SessionEvent::create_per_thread_pool (X_("Audioengine"), 512); + + MIDI::JackMIDIPort::set_process_thread (pthread_self()); +} + +static void +ardour_jack_error (const char* msg) +{ + error << "JACK: " << msg << endmsg; +} + +void +AudioEngine::set_jack_callbacks () +{ + GET_PRIVATE_JACK_POINTER (_jack); + + if (jack_on_info_shutdown) { + jack_on_info_shutdown (_priv_jack, halted_info, this); + } else { + jack_on_shutdown (_priv_jack, halted, this); + } + + jack_set_thread_init_callback (_priv_jack, _thread_init_callback, this); + jack_set_process_thread (_priv_jack, _process_thread, this); + jack_set_sample_rate_callback (_priv_jack, _sample_rate_callback, this); + jack_set_buffer_size_callback (_priv_jack, _bufsize_callback, this); + jack_set_graph_order_callback (_priv_jack, _graph_order_callback, this); + jack_set_port_registration_callback (_priv_jack, _registration_callback, this); + jack_set_port_connect_callback (_priv_jack, _connect_callback, this); + jack_set_xrun_callback (_priv_jack, _xrun_callback, this); + jack_set_sync_callback (_priv_jack, _jack_sync_callback, this); + jack_set_freewheel_callback (_priv_jack, _freewheel_callback, this); + + if (_session && _session->config.get_jack_time_master()) { + jack_set_timebase_callback (_priv_jack, 0, _jack_timebase_callback, this); + } + +#ifdef HAVE_JACK_SESSION + if( jack_set_session_callback) + jack_set_session_callback (_priv_jack, _session_callback, this); +#endif + + if (jack_set_latency_callback) { + jack_set_latency_callback (_priv_jack, _latency_callback, this); + } + + jack_set_error_function (ardour_jack_error); } int AudioEngine::start () { - if (!_running) { - - if (session) { - jack_nframes_t blocksize = jack_get_buffer_size (_jack); + GET_PRIVATE_JACK_POINTER_RET (_jack, -1); - session->set_block_size (blocksize); - session->set_frame_rate (jack_get_sample_rate (_jack)); + if (!_running) { - /* page in as much of the session process code as we - can before we really start running. - */ + if (!jack_port_type_get_buffer_size) { + warning << _("This version of JACK is old - you should upgrade to a newer version that supports jack_port_type_get_buffer_size()") << endmsg; + } - session->process (blocksize); - session->process (blocksize); - session->process (blocksize); - session->process (blocksize); - session->process (blocksize); - session->process (blocksize); - session->process (blocksize); - session->process (blocksize); + if (_session) { + BootMessage (_("Connect session to engine")); + _session->set_frame_rate (jack_get_sample_rate (_priv_jack)); } + /* a proxy for whether jack_activate() will definitely call the buffer size + * callback. with older versions of JACK, this function symbol will be null. + * this is reliable, but not clean. + */ + + if (!jack_port_type_get_buffer_size) { + jack_bufsize_callback (jack_get_buffer_size (_priv_jack)); + } + _processed_frames = 0; last_monitor_check = 0; - jack_on_shutdown (_jack, halted, this); - jack_set_graph_order_callback (_jack, _graph_order_callback, this); - jack_set_thread_init_callback (_jack, _thread_init_callback, this); - jack_set_process_callback (_jack, _process_callback, this); - jack_set_sample_rate_callback (_jack, _sample_rate_callback, this); - jack_set_buffer_size_callback (_jack, _bufsize_callback, this); - jack_set_xrun_callback (_jack, _xrun_callback, this); - jack_set_sync_callback (_jack, _jack_sync_callback, this); - jack_set_freewheel_callback (_jack, _freewheel_callback, this); - - if (Config->get_jack_time_master()) { - jack_set_timebase_callback (_jack, 0, _jack_timebase_callback, this); - } + set_jack_callbacks (); - if (jack_activate (_jack) == 0) { + if (jack_activate (_priv_jack) == 0) { _running = true; _has_run = true; Running(); /* EMIT SIGNAL */ } else { - error << _("cannot activate JACK client") << endmsg; + // error << _("cannot activate JACK client") << endmsg; } } - + return _running ? 0 : -1; } int -AudioEngine::stop () +AudioEngine::stop (bool forever) { - if (_running) { - _running = false; - jack_deactivate (_jack); - Stopped(); /* EMIT SIGNAL */ + GET_PRIVATE_JACK_POINTER_RET (_jack, -1); + + if (_priv_jack) { + if (forever) { + disconnect_from_jack (); + } else { + jack_deactivate (_priv_jack); + Stopped(); /* EMIT SIGNAL */ + MIDI::JackMIDIPort::JackHalted (); /* EMIT SIGNAL */ + } } + if (forever) { + stop_metering_thread (); + } + return _running ? -1 : 0; } - bool -AudioEngine::get_sync_offset (jack_nframes_t& offset) const +AudioEngine::get_sync_offset (pframes_t& offset) const { #ifdef HAVE_JACK_VIDEO_SUPPORT + GET_PRIVATE_JACK_POINTER_RET (_jack, false); + jack_position_t pos; - - (void) jack_transport_query (_jack, &pos); - if (pos.valid & JackVideoFrameOffset) { - offset = pos.video_offset; - return true; - } + if (_priv_jack) { + (void) jack_transport_query (_priv_jack, &pos); + if (pos.valid & JackVideoFrameOffset) { + offset = pos.video_offset; + return true; + } + } +#else + /* keep gcc happy */ + offset = 0; #endif return false; } void -AudioEngine::_jack_timebase_callback (jack_transport_state_t state, jack_nframes_t nframes, +AudioEngine::_jack_timebase_callback (jack_transport_state_t state, pframes_t nframes, jack_position_t* pos, int new_position, void *arg) { static_cast (arg)->jack_timebase_callback (state, nframes, pos, new_position); } void -AudioEngine::jack_timebase_callback (jack_transport_state_t state, jack_nframes_t nframes, +AudioEngine::jack_timebase_callback (jack_transport_state_t state, pframes_t nframes, jack_position_t* pos, int new_position) { - if (session && session->synced_to_jack()) { - session->jack_timebase_callback (state, nframes, pos, new_position); + if (_jack && _session && _session->synced_to_jack()) { + _session->jack_timebase_callback (state, nframes, pos, new_position); } } @@ -209,139 +289,374 @@ AudioEngine::_jack_sync_callback (jack_transport_state_t state, jack_position_t* int AudioEngine::jack_sync_callback (jack_transport_state_t state, jack_position_t* pos) { - if (session) { - return session->jack_sync_callback (state, pos); - } else { - return true; + if (_jack && _session) { + return _session->jack_sync_callback (state, pos); } + + return true; } int AudioEngine::_xrun_callback (void *arg) { - static_cast(arg)->Xrun (); /* EMIT SIGNAL */ + AudioEngine* ae = static_cast (arg); + if (ae->connected()) { + ae->Xrun (); /* EMIT SIGNAL */ + } return 0; } +#ifdef HAVE_JACK_SESSION +void +AudioEngine::_session_callback (jack_session_event_t *event, void *arg) +{ + AudioEngine* ae = static_cast (arg); + if (ae->connected()) { + ae->JackSessionEvent ( event ); /* EMIT SIGNAL */ + } +} +#endif + int AudioEngine::_graph_order_callback (void *arg) { - static_cast(arg)->GraphReordered (); /* EMIT SIGNAL */ + AudioEngine* ae = static_cast (arg); + + if (ae->connected() && !ae->port_remove_in_progress) { + ae->GraphReordered (); /* EMIT SIGNAL */ + } + return 0; } -int -AudioEngine::_process_callback (jack_nframes_t nframes, void *arg) +void* +AudioEngine::_process_thread (void *arg) { - return static_cast (arg)->process_callback (nframes); + return static_cast (arg)->process_thread (); } void AudioEngine::_freewheel_callback (int onoff, void *arg) { - static_cast(arg)->_freewheeling = onoff; + static_cast(arg)->freewheel_callback (onoff); +} + +void +AudioEngine::freewheel_callback (int onoff) +{ + _freewheeling = onoff; + + if (onoff) { + _pre_freewheel_mmc_enabled = MIDI::Manager::instance()->mmc()->send_enabled (); + MIDI::Manager::instance()->mmc()->enable_send (false); + } else { + MIDI::Manager::instance()->mmc()->enable_send (_pre_freewheel_mmc_enabled); + } +} + +void +AudioEngine::_registration_callback (jack_port_id_t /*id*/, int /*reg*/, void* arg) +{ + AudioEngine* ae = static_cast (arg); + + if (!ae->port_remove_in_progress) { + ae->PortRegisteredOrUnregistered (); /* EMIT SIGNAL */ + } +} + +void +AudioEngine::_latency_callback (jack_latency_callback_mode_t mode, void* arg) +{ + return static_cast (arg)->jack_latency_callback (mode); } +void +AudioEngine::_connect_callback (jack_port_id_t id_a, jack_port_id_t id_b, int conn, void* arg) +{ + AudioEngine* ae = static_cast (arg); + + if (ae->port_remove_in_progress) { + return; + } + + GET_PRIVATE_JACK_POINTER (ae->_jack); + + jack_port_t* jack_port_a = jack_port_by_id (_priv_jack, id_a); + jack_port_t* jack_port_b = jack_port_by_id (_priv_jack, id_b); + + boost::shared_ptr port_a; + boost::shared_ptr port_b; + + boost::shared_ptr pr = ae->ports.reader (); + Ports::iterator i = pr->begin (); + while (i != pr->end() && (port_a == 0 || port_b == 0)) { + if (jack_port_a == i->second->jack_port()) { + port_a = i->second; + } else if (jack_port_b == i->second->jack_port()) { + port_b = i->second; + } + ++i; + } + + ae->PortConnectedOrDisconnected ( + port_a, jack_port_name (jack_port_a), + port_b, jack_port_name (jack_port_b), + conn == 0 ? false : true + ); /* EMIT SIGNAL */ +} + +void +AudioEngine::split_cycle (pframes_t offset) +{ + /* caller must hold process lock */ + + Port::increment_global_port_buffer_offset (offset); + + /* tell all Ports that we're going to start a new (split) cycle */ + + boost::shared_ptr p = ports.reader(); + + for (Ports::iterator i = p->begin(); i != p->end(); ++i) { + i->second->cycle_split (); + } +} + +void* +AudioEngine::process_thread () +{ + /* JACK doesn't do this for us when we use the wait API + */ + + _thread_init_callback (0); + + _main_thread = new ProcessThread; + + while (1) { + GET_PRIVATE_JACK_POINTER_RET(_jack,0); + + pframes_t nframes = jack_cycle_wait (_priv_jack); + + if (process_callback (nframes)) { + return 0; + } + + jack_cycle_signal (_priv_jack, 0); + } + + return 0; +} + +/** Method called by our ::process_thread when there is work to be done. + * @param nframes Number of frames to process. + */ int -AudioEngine::process_callback (jack_nframes_t nframes) +AudioEngine::process_callback (pframes_t nframes) { - // CycleTimer ct ("AudioEngine::process"); + GET_PRIVATE_JACK_POINTER_RET(_jack,0); Glib::Mutex::Lock tm (_process_lock, Glib::TRY_LOCK); - jack_nframes_t next_processed_frames; - + + PT_TIMING_REF; + PT_TIMING_CHECK (1); + + /// The number of frames that will have been processed when we've finished + pframes_t next_processed_frames; + /* handle wrap around of total frames counter */ - if (max_frames - _processed_frames < nframes) { - next_processed_frames = nframes - (max_frames - _processed_frames); + if (max_framepos - _processed_frames < nframes) { + next_processed_frames = nframes - (max_framepos - _processed_frames); } else { next_processed_frames = _processed_frames + nframes; } - - if (!tm.locked() || session == 0) { + + if (!tm.locked()) { + /* return having done nothing */ _processed_frames = next_processed_frames; return 0; } if (session_remove_pending) { - session = 0; - session_remove_pending = false; - session_removed.signal(); - _processed_frames = next_processed_frames; - return 0; + + /* perform the actual session removal */ + + if (session_removal_countdown < 0) { + + /* fade out over 1 second */ + session_removal_countdown = _frame_rate/2; + session_removal_gain = 1.0; + session_removal_gain_step = 1.0/session_removal_countdown; + + } else if (session_removal_countdown > 0) { + + /* we'll be fading audio out. + + if this is the last time we do this as part + of session removal, do a MIDI panic now + to get MIDI stopped. This relies on the fact + that "immediate data" (aka "out of band data") from + MIDI tracks is *appended* after any other data, + so that it emerges after any outbound note ons, etc. + */ + + if (session_removal_countdown <= nframes) { + _session->midi_panic (); + } + + } else { + /* fade out done */ + _session = 0; + session_removal_countdown = -1; // reset to "not in progress" + session_remove_pending = false; + session_removed.signal(); // wakes up thread that initiated session removal + } } - if (_freewheeling) { - if (Freewheel (nframes)) { - _freewheeling = false; - jack_set_freewheel (_jack, false); + if (_session == 0) { + + if (!_freewheeling) { + MIDI::Manager::instance()->cycle_start(nframes); + MIDI::Manager::instance()->cycle_end(); } + + _processed_frames = next_processed_frames; + return 0; } + /* tell all relevant objects that we're starting a new cycle */ + + InternalSend::CycleStart (nframes); + Port::set_global_port_buffer_offset (0); + Port::set_cycle_framecnt (nframes); + + /* tell all Ports that we're starting a new cycle */ + boost::shared_ptr p = ports.reader(); - // Prepare ports (ie read data if necessary) - for (Ports::iterator i = p->begin(); i != p->end(); ++i) - (*i)->cycle_start(nframes); - - session->process (nframes); + for (Ports::iterator i = p->begin(); i != p->end(); ++i) { + i->second->cycle_start (nframes); + } + + /* test if we are freewheeling and there are freewheel signals connected. + ardour should act normally even when freewheeling unless /it/ is exporting */ + + + if (_freewheeling && !Freewheel.empty()) { + /* emit the Freewheel signal and stop freewheeling in the event of trouble + */ + boost::optional r = Freewheel (nframes); + if (r.get_value_or (0)) { + jack_set_freewheel (_priv_jack, false); + } + + } else { + MIDI::Manager::instance()->cycle_start(nframes); + + if (_session) { + _session->process (nframes); + } + + MIDI::Manager::instance()->cycle_end(); + } + + if (_freewheeling) { + return 0; + } if (!_running) { - /* we were zombified, maybe because a ladspa plugin took - too long, or jackd exited, or something like that. - */ - _processed_frames = next_processed_frames; return 0; } - - // Finalize ports (ie write data if necessary) - for (Ports::iterator i = p->begin(); i != p->end(); ++i) - (*i)->cycle_end(); if (last_monitor_check + monitor_check_interval < next_processed_frames) { boost::shared_ptr p = ports.reader(); for (Ports::iterator i = p->begin(); i != p->end(); ++i) { - - Port *port = (*i); + bool x; - - if (port->_last_monitor != (x = port->monitoring_input ())) { - port->_last_monitor = x; - /* XXX I think this is dangerous, due to + + if (i->second->last_monitor() != (x = i->second->jack_monitoring_input ())) { + i->second->set_last_monitor (x); + /* XXX I think this is dangerous, due to a likely mutex in the signal handlers ... */ - port->MonitorInputChanged (x); /* EMIT SIGNAL */ + i->second->MonitorInputChanged (x); /* EMIT SIGNAL */ } } last_monitor_check = next_processed_frames; } + if (_session->silent()) { + + for (Ports::iterator i = p->begin(); i != p->end(); ++i) { + + if (i->second->sends_output()) { + i->second->get_buffer(nframes).silence(nframes); + } + } + } + + if (session_remove_pending && session_removal_countdown) { + + for (Ports::iterator i = p->begin(); i != p->end(); ++i) { + + if (i->second->sends_output()) { + + boost::shared_ptr ap = boost::dynamic_pointer_cast (i->second); + if (ap) { + Sample* s = ap->engine_get_whole_audio_buffer (); + gain_t g = session_removal_gain; + + for (pframes_t n = 0; n < nframes; ++n) { + *s++ *= g; + g -= session_removal_gain_step; + } + } + } + } + + if (session_removal_countdown > nframes) { + session_removal_countdown -= nframes; + } else { + session_removal_countdown = 0; + } + + session_removal_gain -= (nframes * session_removal_gain_step); + } + + // Finalize ports + + for (Ports::iterator i = p->begin(); i != p->end(); ++i) { + i->second->cycle_end (nframes); + } + _processed_frames = next_processed_frames; + + PT_TIMING_CHECK (2); + return 0; } int -AudioEngine::_sample_rate_callback (jack_nframes_t nframes, void *arg) +AudioEngine::_sample_rate_callback (pframes_t nframes, void *arg) { return static_cast (arg)->jack_sample_rate_callback (nframes); } int -AudioEngine::jack_sample_rate_callback (jack_nframes_t nframes) +AudioEngine::jack_sample_rate_callback (pframes_t nframes) { _frame_rate = nframes; _usecs_per_cycle = (int) floor ((((double) frames_per_cycle() / nframes)) * 1000000.0); - + /* check for monitor input change every 1/10th of second */ monitor_check_interval = nframes / 10; last_monitor_check = 0; - - if (session) { - session->set_frame_rate (nframes); + + if (_session) { + _session->set_frame_rate (nframes); } SampleRateChanged (nframes); /* EMIT SIGNAL */ @@ -349,206 +664,265 @@ AudioEngine::jack_sample_rate_callback (jack_nframes_t nframes) return 0; } +void +AudioEngine::jack_latency_callback (jack_latency_callback_mode_t mode) +{ + if (_session) { + _session->update_latency (mode == JackPlaybackLatency); + } +} + int -AudioEngine::_bufsize_callback (jack_nframes_t nframes, void *arg) +AudioEngine::_bufsize_callback (pframes_t nframes, void *arg) { return static_cast (arg)->jack_bufsize_callback (nframes); } int -AudioEngine::jack_bufsize_callback (jack_nframes_t nframes) +AudioEngine::jack_bufsize_callback (pframes_t nframes) { + /* if the size has not changed, this should be a no-op */ + + if (nframes == _buffer_size) { + return 0; + } + + GET_PRIVATE_JACK_POINTER_RET (_jack, 1); + _buffer_size = nframes; _usecs_per_cycle = (int) floor ((((double) nframes / frame_rate())) * 1000000.0); last_monitor_check = 0; - boost::shared_ptr p = ports.reader(); + if (jack_port_type_get_buffer_size) { + _raw_buffer_sizes[DataType::AUDIO] = jack_port_type_get_buffer_size (_priv_jack, JACK_DEFAULT_AUDIO_TYPE); + _raw_buffer_sizes[DataType::MIDI] = jack_port_type_get_buffer_size (_priv_jack, JACK_DEFAULT_MIDI_TYPE); + } else { - for (Ports::iterator i = p->begin(); i != p->end(); ++i) { - (*i)->reset(); + /* Old version of JACK. + + These crude guesses, see below where we try to get the right answers. + + Note that our guess for MIDI deliberatey tries to overestimate + by a little. It would be nicer if we could get the actual + size from a port, but we have to use this estimate in the + event that there are no MIDI ports currently. If there are + the value will be adjusted below. + */ + + _raw_buffer_sizes[DataType::AUDIO] = nframes * sizeof (Sample); + _raw_buffer_sizes[DataType::MIDI] = nframes * 4 - (nframes/2); + } + + { + Glib::Mutex::Lock lm (_process_lock); + + boost::shared_ptr p = ports.reader(); + + for (Ports::iterator i = p->begin(); i != p->end(); ++i) { + i->second->reset(); + } } - if (session) { - session->set_block_size (_buffer_size); + if (_session) { + _session->set_block_size (_buffer_size); } return 0; } +void +AudioEngine::stop_metering_thread () +{ + if (m_meter_thread) { + g_atomic_int_set (&m_meter_exit, 1); + m_meter_thread->join (); + m_meter_thread = 0; + } +} + void AudioEngine::start_metering_thread () { - if(m_meter_thread == 0) { - m_meter_thread = Glib::Thread::create (sigc::mem_fun(this, &AudioEngine::meter_thread), false); + if (m_meter_thread == 0) { + g_atomic_int_set (&m_meter_exit, 0); + m_meter_thread = Glib::Thread::create (boost::bind (&AudioEngine::meter_thread, this), + 500000, true, true, Glib::THREAD_PRIORITY_NORMAL); } } void AudioEngine::meter_thread () { - while (g_atomic_int_get(&m_meter_exit) != true) { - Glib::usleep (10000); /* 1/100th sec interval */ - IO::update_meters (); + pthread_set_name (X_("meter")); + + while (true) { + Glib::usleep (10000); /* 1/100th sec interval */ + if (g_atomic_int_get(&m_meter_exit)) { + break; + } + Metering::Meter (); } - return; } -void +void AudioEngine::set_session (Session *s) { - if (!session) { - session = s; + Glib::Mutex::Lock pl (_process_lock); + + SessionHandlePtr::set_session (s); + + if (_session) { + + start_metering_thread (); + + pframes_t blocksize = jack_get_buffer_size (_jack); + + /* page in as much of the session process code as we + can before we really start running. + */ + + boost::shared_ptr p = ports.reader(); + + for (Ports::iterator i = p->begin(); i != p->end(); ++i) { + i->second->cycle_start (blocksize); + } + + _session->process (blocksize); + _session->process (blocksize); + _session->process (blocksize); + _session->process (blocksize); + _session->process (blocksize); + _session->process (blocksize); + _session->process (blocksize); + _session->process (blocksize); + + for (Ports::iterator i = p->begin(); i != p->end(); ++i) { + i->second->cycle_end (blocksize); + } } } -void +void AudioEngine::remove_session () { Glib::Mutex::Lock lm (_process_lock); if (_running) { - if (session) { + stop_metering_thread (); + + if (_session) { session_remove_pending = true; session_removed.wait(_process_lock); - } + } } else { - - session = 0; - + SessionHandlePtr::set_session (0); } - - remove_all_ports (); + remove_all_ports (); } -Port * -AudioEngine::register_input_port (DataType type, const string& portname) +void +AudioEngine::port_registration_failure (const std::string& portname) { - if (!_running) { - if (!_has_run) { - fatal << _("register input port called before engine was started") << endmsg; - /*NOTREACHED*/ - } else { - return 0; - } - } + GET_PRIVATE_JACK_POINTER (_jack); + string full_portname = jack_client_name; + full_portname += ':'; + full_portname += portname; - jack_port_t *p = jack_port_register (_jack, portname.c_str(), type.to_jack_type(), JackPortIsInput, 0); - if (p) { - - Port* newport = 0; - - if (type == DataType::AUDIO) - newport = new AudioPort (p); - else if (type == DataType::MIDI) - newport = new MidiPort (p); - else - throw unknown_type(); - - if (newport != 0) { - RCUWriter writer (ports); - boost::shared_ptr ps = writer.get_copy (); - ps->insert (ps->begin(), newport); - /* writer goes out of scope, forces update */ - } - - return newport; + jack_port_t* p = jack_port_by_name (_priv_jack, full_portname.c_str()); + string reason; + if (p) { + reason = string_compose (_("a port with the name \"%1\" already exists: check for duplicated track/bus names"), portname); } else { - - _process_lock.unlock(); - throw PortRegistrationFailure(); + reason = string_compose (_("No more JACK ports are available. You will need to stop %1 and restart JACK with more ports if you need this many tracks."), PROGRAM_NAME); } - return 0; + throw PortRegistrationFailure (string_compose (_("AudioEngine: cannot register port \"%1\": %2"), portname, reason).c_str()); } -Port * -AudioEngine::register_output_port (DataType type, const string& portname) +boost::shared_ptr +AudioEngine::register_port (DataType dtype, const string& portname, bool input) { - if (!_running) { - if (!_has_run) { - fatal << _("register output port called before engine was started") << endmsg; - /*NOTREACHED*/ + boost::shared_ptr newport; + + try { + if (dtype == DataType::AUDIO) { + newport.reset (new AudioPort (portname, (input ? Port::IsInput : Port::IsOutput))); + } else if (dtype == DataType::MIDI) { + newport.reset (new MidiPort (portname, (input ? Port::IsInput : Port::IsOutput))); } else { - return 0; + throw PortRegistrationFailure("unable to create port (unknown type)"); } - } - jack_port_t* p = 0; - - if ((p = jack_port_register (_jack, portname.c_str(), - type.to_jack_type(), JackPortIsOutput, 0)) != 0) { - - Port* newport = 0; - - if (type == DataType::AUDIO) - newport = new AudioPort (p); - else if (type == DataType::MIDI) - newport = new MidiPort (p); - else - throw unknown_type (); - - if (newport != 0) { - RCUWriter writer (ports); - boost::shared_ptr ps = writer.get_copy (); - ps->insert (ps->begin(), newport); - /* writer goes out of scope, forces update */ - } - + RCUWriter writer (ports); + boost::shared_ptr ps = writer.get_copy (); + ps->insert (make_pair (make_port_name_relative (portname), newport)); + + /* writer goes out of scope, forces update */ + return newport; - - } else { + } - _process_lock.unlock(); - throw PortRegistrationFailure (); + catch (PortRegistrationFailure& err) { + throw err; + } catch (std::exception& e) { + throw PortRegistrationFailure(string_compose( + _("unable to create port: %1"), e.what()).c_str()); + } catch (...) { + throw PortRegistrationFailure("unable to create port (unknown error)"); } +} - return 0; +boost::shared_ptr +AudioEngine::register_input_port (DataType type, const string& portname) +{ + return register_port (type, portname, true); } +boost::shared_ptr +AudioEngine::register_output_port (DataType type, const string& portname) +{ + return register_port (type, portname, false); +} -int -AudioEngine::unregister_port (Port& port) +int +AudioEngine::unregister_port (boost::shared_ptr port) { - if (!_running) { + /* caller must hold process lock */ + + if (!_running) { /* probably happening when the engine has been halted by JACK, in which case, there is nothing we can do here. */ return 0; } - int ret = jack_port_unregister (_jack, port._port); - - if (ret == 0) { - - { - - RCUWriter writer (ports); - boost::shared_ptr ps = writer.get_copy (); - - for (Ports::iterator i = ps->begin(); i != ps->end(); ++i) { - if ((*i) == &port) { - ps->erase (i); - break; - } - } + { + RCUWriter writer (ports); + boost::shared_ptr ps = writer.get_copy (); + Ports::iterator x = ps->find (make_port_name_relative (port->name())); - /* writer goes out of scope, forces update */ + if (x != ps->end()) { + ps->erase (x); } - remove_connections_for (port); + /* writer goes out of scope, forces update */ } - return ret; + ports.flush (); + + return 0; } -int +int AudioEngine::connect (const string& source, const string& destination) { + int ret; + if (!_running) { if (!_has_run) { fatal << _("connect called before engine was started") << endmsg; @@ -557,27 +931,39 @@ AudioEngine::connect (const string& source, const string& destination) return -1; } } - + string s = make_port_name_non_relative (source); string d = make_port_name_non_relative (destination); - int ret = jack_connect (_jack, s.c_str(), d.c_str()); - if (ret == 0) { - pair c (s, d); - port_connections.push_back (c); + boost::shared_ptr src = get_port_by_name (s); + boost::shared_ptr dst = get_port_by_name (d); + + if (src) { + ret = src->connect (d); + } else if (dst) { + ret = dst->connect (s); } else { - error << string_compose(_("AudioEngine: cannot connect %1 (%2) to %3 (%4)"), - source, s, destination, d) + /* neither port is known to us, and this API isn't intended for use as a general patch bay */ + ret = -1; + } + + if (ret > 0) { + /* already exists - no error, no warning */ + } else if (ret < 0) { + error << string_compose(_("AudioEngine: cannot connect %1 (%2) to %3 (%4)"), + source, s, destination, d) << endmsg; } return ret; } -int +int AudioEngine::disconnect (const string& source, const string& destination) { + int ret; + if (!_running) { if (!_has_run) { fatal << _("disconnect called before engine was started") << endmsg; @@ -586,27 +972,29 @@ AudioEngine::disconnect (const string& source, const string& destination) return -1; } } - + string s = make_port_name_non_relative (source); string d = make_port_name_non_relative (destination); - int ret = jack_disconnect (_jack, s.c_str(), d.c_str()); + boost::shared_ptr src = get_port_by_name (s); + boost::shared_ptr dst = get_port_by_name (d); - if (ret == 0) { - pair c (s, d); - PortConnections::iterator i; - - if ((i = find (port_connections.begin(), port_connections.end(), c)) != port_connections.end()) { - port_connections.erase (i); - } + if (src) { + ret = src->disconnect (d); + } else if (dst) { + ret = dst->disconnect (s); + } else { + /* neither port is known to us, and this API isn't intended for use as a general patch bay */ + ret = -1; } - return ret; } int -AudioEngine::disconnect (Port& port) +AudioEngine::disconnect (boost::shared_ptr port) { + GET_PRIVATE_JACK_POINTER_RET (_jack,-1); + if (!_running) { if (!_has_run) { fatal << _("disconnect called before engine was started") << endmsg; @@ -616,81 +1004,97 @@ AudioEngine::disconnect (Port& port) } } - int ret = jack_port_disconnect (_jack, port._port); - - if (ret == 0) { - remove_connections_for (port); - } - - return ret; - + return port->disconnect_all (); } -jack_nframes_t -AudioEngine::frame_rate () +ARDOUR::framecnt_t +AudioEngine::frame_rate () const { - if (_jack) { - if (_frame_rate == 0) { - return (_frame_rate = jack_get_sample_rate (_jack)); - } else { - return _frame_rate; - } + GET_PRIVATE_JACK_POINTER_RET (_jack, 0); + if (_frame_rate == 0) { + return (_frame_rate = jack_get_sample_rate (_priv_jack)); } else { - fatal << X_("programming error: AudioEngine::frame_rate() called while disconnected from JACK") - << endmsg; - /*NOTREACHED*/ - return 0; + return _frame_rate; } } -jack_nframes_t -AudioEngine::frames_per_cycle () +size_t +AudioEngine::raw_buffer_size (DataType t) { - if (_jack) { - if (_buffer_size == 0) { - return (_buffer_size = jack_get_buffer_size (_jack)); - } else { - return _buffer_size; - } + std::map::const_iterator s = _raw_buffer_sizes.find(t); + return (s != _raw_buffer_sizes.end()) ? s->second : 0; +} + +ARDOUR::pframes_t +AudioEngine::frames_per_cycle () const +{ + GET_PRIVATE_JACK_POINTER_RET (_jack,0); + if (_buffer_size == 0) { + return jack_get_buffer_size (_jack); } else { - fatal << X_("programming error: AudioEngine::frame_rate() called while disconnected from JACK") - << endmsg; - /*NOTREACHED*/ - return 0; + return _buffer_size; } } -/** Get a port by name. - * Note this can return NULL, it will NOT create a port if it is not found (any more). +/** @param name Full or short name of port + * @return Corresponding Port or 0. */ -Port * -AudioEngine::get_port_by_name (const string& portname, bool keep) -{ - Glib::Mutex::Lock lm (_process_lock); +boost::shared_ptr +AudioEngine::get_port_by_name (const string& portname) +{ if (!_running) { if (!_has_run) { fatal << _("get_port_by_name() called before engine was started") << endmsg; /*NOTREACHED*/ } else { - return 0; + boost::shared_ptr (); } } - + + if (!port_is_mine (portname)) { + /* not an ardour port */ + return boost::shared_ptr (); + } + boost::shared_ptr pr = ports.reader(); - - for (Ports::iterator i = pr->begin(); i != pr->end(); ++i) { - if (portname == (*i)->name()) { - return (*i); + std::string rel = make_port_name_relative (portname); + Ports::iterator x = pr->find (rel); + + if (x != pr->end()) { + /* its possible that the port was renamed by some 3rd party and + we don't know about it. check for this (the check is quick + and cheap), and if so, rename the port (which will alter + the port map as a side effect). + */ + const std::string check = make_port_name_relative (jack_port_name (x->second->jack_port())); + if (check != rel) { + x->second->set_name (check); } + return x->second; } - return 0; + return boost::shared_ptr (); +} + +void +AudioEngine::port_renamed (const std::string& old_relative_name, const std::string& new_relative_name) +{ + RCUWriter writer (ports); + boost::shared_ptr p = writer.get_copy(); + Ports::iterator x = p->find (old_relative_name); + + if (x != p->end()) { + boost::shared_ptr port = x->second; + p->erase (x); + p->insert (make_pair (new_relative_name, port)); + } } const char ** AudioEngine::get_ports (const string& port_name_pattern, const string& type_name_pattern, uint32_t flags) { + GET_PRIVATE_JACK_POINTER_RET (_jack,0); if (!_running) { if (!_has_run) { fatal << _("get_ports called before engine was started") << endmsg; @@ -699,242 +1103,233 @@ AudioEngine::get_ports (const string& port_name_pattern, const string& type_name return 0; } } - return jack_get_ports (_jack, port_name_pattern.c_str(), type_name_pattern.c_str(), flags); + return jack_get_ports (_priv_jack, port_name_pattern.c_str(), type_name_pattern.c_str(), flags); +} + +void +AudioEngine::halted_info (jack_status_t code, const char* reason, void *arg) +{ + /* called from jack shutdown handler */ + + AudioEngine* ae = static_cast (arg); + bool was_running = ae->_running; + + ae->stop_metering_thread (); + + ae->_running = false; + ae->_buffer_size = 0; + ae->_frame_rate = 0; + ae->_jack = 0; + + if (was_running) { +#ifdef HAVE_JACK_ON_INFO_SHUTDOWN + switch (code) { + case JackBackendError: + ae->Halted(reason); /* EMIT SIGNAL */ + break; + default: + ae->Halted(""); /* EMIT SIGNAL */ + } +#else + ae->Halted(""); /* EMIT SIGNAL */ +#endif + } } void AudioEngine::halted (void *arg) { - AudioEngine *ae = reinterpret_cast (arg); + cerr << "HALTED by JACK\n"; - ae->_running = false; - ae->_jack = 0; + /* called from jack shutdown handler */ + + AudioEngine* ae = static_cast (arg); + bool was_running = ae->_running; + + ae->stop_metering_thread (); + ae->_running = false; ae->_buffer_size = 0; ae->_frame_rate = 0; + ae->_jack = 0; - ae->Halted(); /* EMIT SIGNAL */ + if (was_running) { + ae->Halted(""); /* EMIT SIGNAL */ + MIDI::JackMIDIPort::JackHalted (); /* EMIT SIGNAL */ + } } -uint32_t -AudioEngine::n_physical_outputs () const +void +AudioEngine::died () { - const char ** ports; - uint32_t i = 0; - - if (!_jack) { - return 0; - } + /* called from a signal handler for SIGPIPE */ - if ((ports = jack_get_ports (_jack, NULL, NULL, JackPortIsPhysical|JackPortIsInput)) == 0) { - return 0; - } + stop_metering_thread (); - if (ports) { - for (i = 0; ports[i]; ++i); - free (ports); - } - return i; + _running = false; + _buffer_size = 0; + _frame_rate = 0; + _jack = 0; } -uint32_t -AudioEngine::n_physical_inputs () const +bool +AudioEngine::can_request_hardware_monitoring () { + GET_PRIVATE_JACK_POINTER_RET (_jack,false); const char ** ports; - uint32_t i = 0; - - if (!_jack) { - return 0; - } - - if ((ports = jack_get_ports (_jack, NULL, NULL, JackPortIsPhysical|JackPortIsOutput)) == 0) { - return 0; - } - if (ports) { - for (i = 0; ports[i]; ++i); - free (ports); + if ((ports = jack_get_ports (_priv_jack, NULL, JACK_DEFAULT_AUDIO_TYPE, JackPortCanMonitor)) == 0) { + return false; } - return i; + + free (ports); + + return true; } -void -AudioEngine::get_physical_inputs (vector& ins) +ChanCount +AudioEngine::n_physical (unsigned long flags) const { - const char ** ports; - uint32_t i = 0; - - if (!_jack) { - return; - } - - if ((ports = jack_get_ports (_jack, NULL, NULL, JackPortIsPhysical|JackPortIsOutput)) == 0) { - return; + ChanCount c; + + GET_PRIVATE_JACK_POINTER_RET (_jack, c); + + const char ** ports = jack_get_ports (_priv_jack, NULL, NULL, JackPortIsPhysical | flags); + if (ports == 0) { + return c; } - if (ports) { - for (i = 0; ports[i]; ++i) { - ins.push_back (ports[i]); + for (uint32_t i = 0; ports[i]; ++i) { + if (!strstr (ports[i], "Midi-Through")) { + DataType t (jack_port_type (jack_port_by_name (_jack, ports[i]))); + c.set (t, c.get (t) + 1); } - free (ports); } + + free (ports); + + return c; +} + +ChanCount +AudioEngine::n_physical_inputs () const +{ + return n_physical (JackPortIsInput); +} + +ChanCount +AudioEngine::n_physical_outputs () const +{ + return n_physical (JackPortIsOutput); } void -AudioEngine::get_physical_outputs (vector& outs) +AudioEngine::get_physical (DataType type, unsigned long flags, vector& phy) { + GET_PRIVATE_JACK_POINTER (_jack); const char ** ports; - uint32_t i = 0; - - if (!_jack) { - return; - } - - if ((ports = jack_get_ports (_jack, NULL, NULL, JackPortIsPhysical|JackPortIsInput)) == 0) { + + if ((ports = jack_get_ports (_priv_jack, NULL, type.to_jack_type(), JackPortIsPhysical | flags)) == 0) { return; } if (ports) { - for (i = 0; ports[i]; ++i) { - outs.push_back (ports[i]); + for (uint32_t i = 0; ports[i]; ++i) { + if (strstr (ports[i], "Midi-Through")) { + continue; + } + phy.push_back (ports[i]); } free (ports); } } -string -AudioEngine::get_nth_physical (DataType type, uint32_t n, int flag) +/** Get physical ports for which JackPortIsOutput is set; ie those that correspond to + * a physical input connector. + */ +void +AudioEngine::get_physical_inputs (DataType type, vector& ins) { - const char ** ports; - uint32_t i; - string ret; - - assert(type != DataType::NIL); - - if (!_running || !_jack) { - if (!_has_run) { - fatal << _("get_nth_physical called before engine was started") << endmsg; - /*NOTREACHED*/ - } else { - return ""; - } - } - - ports = jack_get_ports (_jack, NULL, type.to_jack_type(), JackPortIsPhysical|flag); - - if (ports == 0) { - return ""; - } - - for (i = 0; i < n && ports[i]; ++i); - - if (ports[i]) { - ret = ports[i]; - } - - free ((char *) ports); - - return ret; + get_physical (type, JackPortIsOutput, ins); } -jack_nframes_t -AudioEngine::get_port_total_latency (const Port& port) +/** Get physical ports for which JackPortIsInput is set; ie those that correspond to + * a physical output connector. + */ +void +AudioEngine::get_physical_outputs (DataType type, vector& outs) { - if (!_jack) { - fatal << _("get_port_total_latency() called with no JACK client connection") << endmsg; - /*NOTREACHED*/ - } - - if (!_running) { - if (!_has_run) { - fatal << _("get_port_total_latency() called before engine was started") << endmsg; - /*NOTREACHED*/ - } - } - - return jack_port_get_total_latency (_jack, port._port); + get_physical (type, JackPortIsInput, outs); } void AudioEngine::transport_stop () { - // cerr << "tell JACK to stop\n"; - if (_jack) { - jack_transport_stop (_jack); - } + GET_PRIVATE_JACK_POINTER (_jack); + jack_transport_stop (_priv_jack); } void AudioEngine::transport_start () { - // cerr << "tell JACK to start\n"; - if (_jack) { - jack_transport_start (_jack); - } + GET_PRIVATE_JACK_POINTER (_jack); + jack_transport_start (_priv_jack); } void -AudioEngine::transport_locate (jack_nframes_t where) +AudioEngine::transport_locate (framepos_t where) { - // cerr << "tell JACK to locate to " << where << endl; - if (_jack) { - jack_transport_locate (_jack, where); - } + GET_PRIVATE_JACK_POINTER (_jack); + jack_transport_locate (_priv_jack, where); } AudioEngine::TransportState AudioEngine::transport_state () { - if (_jack) { - jack_position_t pos; - return (TransportState) jack_transport_query (_jack, &pos); - } else { - return (TransportState) JackTransportStopped; - } + GET_PRIVATE_JACK_POINTER_RET (_jack, ((TransportState) JackTransportStopped)); + jack_position_t pos; + return (TransportState) jack_transport_query (_priv_jack, &pos); } int AudioEngine::reset_timebase () { - if (_jack) { - if (Config->get_jack_time_master()) { - return jack_set_timebase_callback (_jack, 0, _jack_timebase_callback, this); + GET_PRIVATE_JACK_POINTER_RET (_jack, -1); + if (_session) { + if (_session->config.get_jack_time_master()) { + return jack_set_timebase_callback (_priv_jack, 0, _jack_timebase_callback, this); } else { return jack_release_timebase (_jack); } - } else { - return -1; } + return 0; } int AudioEngine::freewheel (bool onoff) { - if (_jack) { - - if (onoff) { - _freewheel_thread_registered = false; - } + GET_PRIVATE_JACK_POINTER_RET (_jack, -1); - return jack_set_freewheel (_jack, onoff); + if (onoff != _freewheeling) { + return jack_set_freewheel (_priv_jack, onoff); } else { - return -1; + /* already doing what has been asked for */ + return 0; } } void AudioEngine::remove_all_ports () { - /* process lock MUST be held */ + /* make sure that JACK callbacks that will be invoked as we cleanup + * ports know that they have nothing to do. + */ - if (_jack) { - boost::shared_ptr p = ports.reader(); + port_remove_in_progress = true; - for (Ports::iterator i = p->begin(); i != p->end(); ++i) { - jack_port_unregister (_jack, (*i)->_port); - } - } + /* process lock MUST be held by caller + */ { RCUWriter writer (ports); @@ -942,109 +1337,88 @@ AudioEngine::remove_all_ports () ps->clear (); } - port_connections.clear (); -} + /* clear dead wood list in RCU */ -void -AudioEngine::remove_connections_for (Port& port) -{ - for (PortConnections::iterator i = port_connections.begin(); i != port_connections.end(); ) { - PortConnections::iterator tmp; - - tmp = i; - ++tmp; - - if ((*i).first == port.name()) { - port_connections.erase (i); - } + ports.flush (); - i = tmp; - } + port_remove_in_progress = false; } -#ifdef HAVE_JACK_CLIENT_OPEN - int -AudioEngine::connect_to_jack (string client_name) +AudioEngine::connect_to_jack (string client_name, string session_uuid) { - jack_options_t options = JackNullOption; + EnvironmentalProtectionAgency* global_epa = EnvironmentalProtectionAgency::get_global_epa (); + boost::scoped_ptr current_epa; jack_status_t status; - const char *server_name = NULL; + + /* revert all environment settings back to whatever they were when ardour started + */ + + if (global_epa) { + current_epa.reset (new EnvironmentalProtectionAgency(true)); /* will restore settings when we leave scope */ + global_epa->restore (); + } jack_client_name = client_name; /* might be reset below */ +#ifdef HAVE_JACK_SESSION + if (! session_uuid.empty()) + _jack = jack_client_open (jack_client_name.c_str(), JackSessionID, &status, session_uuid.c_str()); + else +#endif + _jack = jack_client_open (jack_client_name.c_str(), JackNullOption, &status, 0); - _jack = jack_client_open (jack_client_name.c_str(), options, &status, server_name); - if (_jack == NULL) { - - if (status & JackServerFailed) { - error << _("Unable to connect to JACK server") << endmsg; - } - - error << string_compose (_("Could not connect to JACK server as \"%1\""), jack_client_name) << endmsg; + // error message is not useful here return -1; } - if (status & JackServerStarted) { - info << _("JACK server started") << endmsg; - } + GET_PRIVATE_JACK_POINTER_RET (_jack, -1); if (status & JackNameNotUnique) { - jack_client_name = jack_get_client_name (_jack); - } - - return 0; -} - -#else - -int -AudioEngine::connect_to_jack (string client_name) -{ - jack_client_name = client_name; - - if ((_jack = jack_client_new (client_name.c_str())) == NULL) { - return -1; + jack_client_name = jack_get_client_name (_priv_jack); } return 0; } -#endif /* HAVE_JACK_CLIENT_OPEN */ - -int +int AudioEngine::disconnect_from_jack () { - if (_jack == 0) { - return 0; + GET_PRIVATE_JACK_POINTER_RET (_jack, 0); + + if (_running) { + stop_metering_thread (); } - if (jack_client_close (_jack)) { - error << _("cannot shutdown connection to JACK") << endmsg; + { + Glib::Mutex::Lock lm (_process_lock); + jack_client_close (_priv_jack); + _jack = 0; } _buffer_size = 0; _frame_rate = 0; + _raw_buffer_sizes.clear(); if (_running) { _running = false; Stopped(); /* EMIT SIGNAL */ + MIDI::JackMIDIPort::JackHalted (); /* EMIT SIGNAL */ } - _jack = 0; return 0; } int AudioEngine::reconnect_to_jack () { - if (_jack) { + if (_running) { disconnect_from_jack (); /* XXX give jackd a chance */ Glib::usleep (250000); } - if (connect_to_jack (jack_client_name)) { + if (connect_to_jack (jack_client_name, "")) { error << _("failed to connect to JACK") << endmsg; return -1; } @@ -1054,59 +1428,32 @@ AudioEngine::reconnect_to_jack () boost::shared_ptr p = ports.reader (); for (i = p->begin(); i != p->end(); ++i) { - - /* XXX hack hack hack */ - - string long_name = (*i)->name(); - string short_name; - - short_name = long_name.substr (long_name.find_last_of (':') + 1); - - if (((*i)->_port = jack_port_register (_jack, short_name.c_str(), (*i)->type().to_jack_type(), (*i)->flags(), 0)) == 0) { - error << string_compose (_("could not reregister %1"), (*i)->name()) << endmsg; + if (i->second->reestablish ()) { break; - } else { - } - - (*i)->reset (); - - if ((*i)->flags() & JackPortIsOutput) { - (*i)->get_buffer().silence (jack_get_buffer_size (_jack), 0); } } if (i != p->end()) { /* failed */ - for (Ports::iterator i = p->begin(); i != p->end(); ++i) { - jack_port_unregister (_jack, (*i)->_port); - } + remove_all_ports (); return -1; - } + } + GET_PRIVATE_JACK_POINTER_RET (_jack,-1); - if (session) { - jack_nframes_t blocksize = jack_get_buffer_size (_jack); - session->set_block_size (blocksize); - session->set_frame_rate (jack_get_sample_rate (_jack)); + MIDI::Manager::instance()->reestablish (_priv_jack); + + if (_session) { + _session->reset_jack_connection (_priv_jack); + jack_bufsize_callback (jack_get_buffer_size (_priv_jack)); + _session->set_frame_rate (jack_get_sample_rate (_priv_jack)); } last_monitor_check = 0; - - jack_on_shutdown (_jack, halted, this); - jack_set_graph_order_callback (_jack, _graph_order_callback, this); - jack_set_thread_init_callback (_jack, _thread_init_callback, this); - jack_set_process_callback (_jack, _process_callback, this); - jack_set_sample_rate_callback (_jack, _sample_rate_callback, this); - jack_set_buffer_size_callback (_jack, _bufsize_callback, this); - jack_set_xrun_callback (_jack, _xrun_callback, this); - jack_set_sync_callback (_jack, _jack_sync_callback, this); - jack_set_freewheel_callback (_jack, _freewheel_callback, this); - - if (Config->get_jack_time_master()) { - jack_set_timebase_callback (_jack, 0, _jack_timebase_callback, this); - } - - if (jack_activate (_jack) == 0) { + + set_jack_callbacks (); + + if (jack_activate (_priv_jack) == 0) { _running = true; _has_run = true; } else { @@ -1114,50 +1461,38 @@ AudioEngine::reconnect_to_jack () } /* re-establish connections */ - - for (PortConnections::iterator i = port_connections.begin(); i != port_connections.end(); ++i) { - - int err; - - if ((err = jack_connect (_jack, (*i).first.c_str(), (*i).second.c_str())) != 0) { - if (err != EEXIST) { - error << string_compose (_("could not reconnect %1 and %2 (err = %3)"), - (*i).first, (*i).second, err) - << endmsg; - } - } + + for (i = p->begin(); i != p->end(); ++i) { + i->second->reconnect (); } + MIDI::Manager::instance()->reconnect (); + Running (); /* EMIT SIGNAL*/ + start_metering_thread (); + return 0; } int -AudioEngine::request_buffer_size (jack_nframes_t nframes) +AudioEngine::request_buffer_size (pframes_t nframes) { - if (_jack) { - int ret = jack_set_buffer_size (_jack, nframes); - return ret; - } else { - return -1; + GET_PRIVATE_JACK_POINTER_RET (_jack, -1); + + if (nframes == jack_get_buffer_size (_priv_jack)) { + return 0; } -} -void -AudioEngine::update_total_latencies () -{ -#ifdef HAVE_JACK_RECOMPUTE_LATENCIES - jack_recompute_total_latencies (_jack); -#endif + return jack_set_buffer_size (_priv_jack, nframes); } - + string -AudioEngine::make_port_name_relative (string portname) +AudioEngine::make_port_name_relative (string portname) const { string::size_type len; string::size_type n; - + len = portname.length(); for (n = 0; n < len; ++n) { @@ -1165,7 +1500,7 @@ AudioEngine::make_port_name_relative (string portname) break; } } - + if ((n != len) && (portname.substr (0, n) == jack_client_name)) { return portname.substr (n+1); } @@ -1174,7 +1509,7 @@ AudioEngine::make_port_name_relative (string portname) } string -AudioEngine::make_port_name_non_relative (string portname) +AudioEngine::make_port_name_non_relative (string portname) const { string str; @@ -1185,7 +1520,94 @@ AudioEngine::make_port_name_non_relative (string portname) str = jack_client_name; str += ':'; str += portname; - + return str; } +bool +AudioEngine::port_is_mine (const string& portname) const +{ + if (portname.find_first_of (':') != string::npos) { + if (portname.substr (0, jack_client_name.length ()) != jack_client_name) { + return false; + } + } + return true; +} + +bool +AudioEngine::is_realtime () const +{ + GET_PRIVATE_JACK_POINTER_RET (_jack,false); + return jack_is_realtime (_priv_jack); +} + +int +AudioEngine::create_process_thread (boost::function f, pthread_t* thread, size_t stacksize) +{ + GET_PRIVATE_JACK_POINTER_RET (_jack, 0); + ThreadData* td = new ThreadData (this, f, stacksize); + + if (jack_client_create_thread (_priv_jack, thread, jack_client_real_time_priority (_priv_jack), + jack_is_realtime (_priv_jack), _start_process_thread, td)) { + return -1; + } + + return 0; +} + +void* +AudioEngine::_start_process_thread (void* arg) +{ + ThreadData* td = reinterpret_cast (arg); + boost::function f = td->f; + delete td; + + f (); + + return 0; +} + +bool +AudioEngine::port_is_physical (const std::string& portname) const +{ + GET_PRIVATE_JACK_POINTER_RET(_jack, false); + + jack_port_t *port = jack_port_by_name (_priv_jack, portname.c_str()); + + if (!port) { + return false; + } + + return jack_port_flags (port) & JackPortIsPhysical; +} + +void +AudioEngine::request_jack_monitors_input (const std::string& portname, bool yn) const +{ + GET_PRIVATE_JACK_POINTER(_jack); + + jack_port_t *port = jack_port_by_name (_priv_jack, portname.c_str()); + + if (!port) { + return; + } + + jack_port_request_monitor (port, yn); +} + +void +AudioEngine::update_latencies () +{ + if (jack_recompute_total_latencies) { + GET_PRIVATE_JACK_POINTER (_jack); + jack_recompute_total_latencies (_priv_jack); + } +} + +void +AudioEngine::destroy () +{ + delete _instance; + _instance = 0; +}