/*
- 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
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id$
*/
#include <unistd.h>
#include <cerrno>
#include <vector>
+#include <exception>
+#include <stdexcept>
+#include <sstream>
#include <glibmm/timer.h>
-#include <pbd/pthread_utils.h>
-#include <pbd/unknown_type.h>
-
-#include <ardour/audioengine.h>
-#include <ardour/buffer.h>
-#include <ardour/port.h>
-#include <ardour/audio_port.h>
-#include <ardour/midi_port.h>
-#include <ardour/session.h>
-#include <ardour/cycle_timer.h>
-#include <ardour/utils.h>
-#ifdef VST_SUPPORT
-#include <fst.h>
-#endif
-#include <ardour/timestamps.h>
+#include "pbd/pthread_utils.h"
+#include "pbd/stacktrace.h"
+#include "pbd/unknown_type.h"
+#include "pbd/epa.h"
+
+#include <jack/weakjack.h>
+
+#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"
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;
}
-void
-AudioEngine::_jack_timebase_callback (jack_transport_state_t state, jack_nframes_t nframes,
+bool
+AudioEngine::get_sync_offset (pframes_t& offset) const
+{
+
+#ifdef HAVE_JACK_VIDEO_SUPPORT
- jack_position_t* pos, int new_position, void *arg)
+ GET_PRIVATE_JACK_POINTER_RET (_jack, false);
+
+ jack_position_t pos;
+
+ 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, pframes_t nframes,
+ jack_position_t* pos, int new_position, void *arg)
{
static_cast<AudioEngine*> (arg)->jack_timebase_callback (state, nframes, pos, new_position);
}
void
-AudioEngine::jack_timebase_callback (jack_transport_state_t state, jack_nframes_t nframes,
-
- jack_position_t* pos, int new_position)
+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);
}
}
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<AudioEngine *>(arg)->Xrun (); /* EMIT SIGNAL */
+ AudioEngine* ae = static_cast<AudioEngine*> (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<AudioEngine*> (arg);
+ if (ae->connected()) {
+ ae->JackSessionEvent ( event ); /* EMIT SIGNAL */
+ }
+}
+#endif
+
int
AudioEngine::_graph_order_callback (void *arg)
{
- static_cast<AudioEngine *>(arg)->GraphReordered (); /* EMIT SIGNAL */
+ AudioEngine* ae = static_cast<AudioEngine*> (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<AudioEngine *> (arg)->process_callback (nframes);
+ return static_cast<AudioEngine *> (arg)->process_thread ();
}
void
AudioEngine::_freewheel_callback (int onoff, void *arg)
{
- static_cast<AudioEngine*>(arg)->_freewheeling = onoff;
+ static_cast<AudioEngine*>(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<AudioEngine*> (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<AudioEngine *> (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<AudioEngine*> (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> port_a;
+ boost::shared_ptr<Port> port_b;
+
+ boost::shared_ptr<Ports> 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<Ports> 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<Ports> 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<int> 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<Ports> 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<AudioPort> ap = boost::dynamic_pointer_cast<AudioPort> (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<AudioEngine *> (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 */
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<AudioEngine *> (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<Ports> 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<Ports> 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<Ports> 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;
- }
- }
-
- jack_port_t *p = jack_port_register (_jack, portname.c_str(), type.to_jack_type(), JackPortIsInput, 0);
+ GET_PRIVATE_JACK_POINTER (_jack);
+ string full_portname = jack_client_name;
+ full_portname += ':';
+ full_portname += portname;
- 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<Ports> writer (ports);
- boost::shared_ptr<Ports> 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<Port>
+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<Port> 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<Ports> writer (ports);
- boost::shared_ptr<Ports> ps = writer.get_copy ();
- ps->insert (ps->begin(), newport);
- /* writer goes out of scope, forces update */
- }
-
+ RCUWriter<Ports> writer (ports);
+ boost::shared_ptr<Ports> 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<Port>
+AudioEngine::register_input_port (DataType type, const string& portname)
+{
+ return register_port (type, portname, true);
}
+boost::shared_ptr<Port>
+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> 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<Ports> writer (ports);
- boost::shared_ptr<Ports> ps = writer.get_copy ();
-
- for (Ports::iterator i = ps->begin(); i != ps->end(); ++i) {
- if ((*i) == &port) {
- ps->erase (i);
- break;
- }
- }
+ {
+ RCUWriter<Ports> writer (ports);
+ boost::shared_ptr<Ports> 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;
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<string,string> c (s, d);
- port_connections.push_back (c);
+ boost::shared_ptr<Port> src = get_port_by_name (s);
+ boost::shared_ptr<Port> 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;
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<Port> src = get_port_by_name (s);
+ boost::shared_ptr<Port> dst = get_port_by_name (d);
- if (ret == 0) {
- pair<string,string> 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> port)
{
+ GET_PRIVATE_JACK_POINTER_RET (_jack,-1);
+
if (!_running) {
if (!_has_run) {
fatal << _("disconnect called before engine was started") << endmsg;
}
}
- 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<DataType,size_t>::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<Port>
+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<Port> ();
}
}
-
+
+ if (!port_is_mine (portname)) {
+ /* not an ardour port */
+ return boost::shared_ptr<Port> ();
+ }
+
boost::shared_ptr<Ports> 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<Port> ();
+}
+
+void
+AudioEngine::port_renamed (const std::string& old_relative_name, const std::string& new_relative_name)
+{
+ RCUWriter<Ports> writer (ports);
+ boost::shared_ptr<Ports> p = writer.get_copy();
+ Ports::iterator x = p->find (old_relative_name);
+
+ if (x != p->end()) {
+ boost::shared_ptr<Port> 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;
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<AudioEngine *> (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<AudioEngine *> (arg);
+ cerr << "HALTED by JACK\n";
- ae->_running = false;
- ae->_jack = 0;
+ /* called from jack shutdown handler */
+
+ AudioEngine* ae = static_cast<AudioEngine *> (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<string>& 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<string>& outs)
+AudioEngine::get_physical (DataType type, unsigned long flags, vector<string>& 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<string>& 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<string>& 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<Ports> 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<Ports> writer (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<EnvironmentalProtectionAgency> 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;
}
boost::shared_ptr<Ports> 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)->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);
+ MIDI::Manager::instance()->reestablish (_priv_jack);
- 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));
+ 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 {
}
/* 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) {
break;
}
}
-
+
if ((n != len) && (portname.substr (0, n) == jack_client_name)) {
return portname.substr (n+1);
}
}
string
-AudioEngine::make_port_name_non_relative (string portname)
+AudioEngine::make_port_name_non_relative (string portname) const
{
string str;
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<void()> 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<ThreadData*> (arg);
+ boost::function<void()> 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;
+}
projects / ardour.git / blobdiff