#include <unistd.h>
#include <cerrno>
#include <vector>
+
+#include <glibmm/timer.h>
#include <pbd/pthread_utils.h>
#include <ardour/audioengine.h>
+#include <ardour/buffer.h>
#include <ardour/port.h>
#include <ardour/session.h>
#include <ardour/cycle_timer.h>
using namespace std;
using namespace ARDOUR;
+using namespace PBD;
-jack_nframes_t Port::short_over_length = 2;
-jack_nframes_t Port::long_over_length = 10;
+gint AudioEngine::m_meter_exit;
AudioEngine::AudioEngine (string client_name)
+ : ports (new Ports)
{
- pthread_cond_init (&session_removed, 0);
session = 0;
session_remove_pending = false;
_running = false;
_freewheeling = false;
_freewheel_thread_registered = false;
+ m_meter_thread = 0;
+ g_atomic_int_set (&m_meter_exit, 0);
+
if (connect_to_jack (client_name)) {
throw NoBackendAvailable ();
}
+ start_metering_thread();
+
}
AudioEngine::~AudioEngine ()
if (_running) {
jack_client_close (_jack);
}
+
+ stop_metering_thread ();
}
void
*/
PBD::ThreadCreatedWithRequestSize (pthread_self(), X_("Audioengine"), 4096);
-
-#ifdef VST_SUPPORT
- if (Config->get_use_vst()) {
- fst_adopt_thread ();
- }
-#endif
}
int
if (!_running) {
if (session) {
- jack_nframes_t blocksize = jack_get_buffer_size (_jack);
+ nframes_t blocksize = jack_get_buffer_size (_jack);
session->set_block_size (blocksize);
session->set_frame_rate (jack_get_sample_rate (_jack));
}
-void
-AudioEngine::_jack_timebase_callback (jack_transport_state_t state, jack_nframes_t nframes,
+
+bool
+AudioEngine::get_sync_offset (nframes_t& offset) const
+{
+
+#ifdef HAVE_JACK_VIDEO_SUPPORT
+
+ jack_position_t pos;
+
+ (void) jack_transport_query (_jack, &pos);
+
+ if (pos.valid & JackVideoFrameOffset) {
+ offset = pos.video_offset;
+ return true;
+ }
- jack_position_t* pos, int new_position, void *arg)
+#endif
+
+ return false;
+}
+
+void
+AudioEngine::_jack_timebase_callback (jack_transport_state_t state, nframes_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, nframes_t nframes,
+ jack_position_t* pos, int new_position)
{
if (session && session->synced_to_jack()) {
session->jack_timebase_callback (state, nframes, pos, new_position);
int
AudioEngine::_graph_order_callback (void *arg)
{
-
static_cast<AudioEngine *>(arg)->GraphReordered (); /* EMIT SIGNAL */
+ static_cast<AudioEngine *>(arg)->GraphReordered (); /* EMIT SIGNAL */
return 0;
}
int
-AudioEngine::_process_callback (jack_nframes_t nframes, void *arg)
+AudioEngine::_process_callback (nframes_t nframes, void *arg)
{
return static_cast<AudioEngine *> (arg)->process_callback (nframes);
}
static_cast<AudioEngine*>(arg)->_freewheeling = onoff;
}
-void
-AudioEngine::meter (Port *port, jack_nframes_t nframes)
-{
- double peak;
- uint32_t overlen;
- jack_default_audio_sample_t *buf;
-
- buf = port->get_buffer (nframes);
- peak = port->_peak;
- overlen = port->overlen;
-
- {
- for (jack_nframes_t n = 0; n < nframes; ++n) {
-
- /* 1) peak metering */
-
- peak = f_max (peak, buf[n]);
-
- /* 2) clip/over metering */
-
- if (buf[n] >= 1.0) {
- overlen++;
- } else if (overlen) {
- if (overlen > Port::short_over_length) {
- port->_short_overs++;
- }
- if (overlen > Port::long_over_length) {
- port->_long_overs++;
- }
- overlen = 0;
- }
- }
- }
-
- /* post-loop check on the final status of overlen */
-
- if (overlen > Port::short_over_length) {
- port->_short_overs++;
- }
- if (overlen > Port::long_over_length) {
- port->_short_overs++;
- }
-
- if (peak > 0.0) {
- port->_peak_db= 20 * fast_log10 (peak);
- } else {
- port->_peak_db = minus_infinity();
- }
-
- port->_peak = peak;
- port->overlen = overlen;
-}
-
int
-AudioEngine::process_callback (jack_nframes_t nframes)
+AudioEngine::process_callback (nframes_t nframes)
{
- TentativeLockMonitor tm (_process_lock, __LINE__, __FILE__);
- jack_nframes_t next_processed_frames;
-
+ // CycleTimer ct ("AudioEngine::process");
+ Glib::Mutex::Lock tm (_process_lock, Glib::TRY_LOCK);
+ nframes_t next_processed_frames;
+
/* handle wrap around of total frames counter */
if (max_frames - _processed_frames < nframes) {
if (session_remove_pending) {
session = 0;
session_remove_pending = false;
- pthread_cond_signal (&session_removed);
+ session_removed.signal();
_processed_frames = next_processed_frames;
return 0;
}
return 0;
}
- /* do input peak metering */
-
- for (Ports::iterator i = ports.begin(); i != ports.end(); ++i) {
- if ((*i)->metering) {
- meter ((*i), nframes);
- }
- }
-
session->process (nframes);
if (!_running) {
_processed_frames = next_processed_frames;
return 0;
}
-
+
if (last_monitor_check + monitor_check_interval < next_processed_frames) {
- for (Ports::iterator i = ports.begin(); i != ports.end(); ++i) {
+
+ 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;
+ if (port->_last_monitor != (x = port->monitoring_input ())) {
+ port->_last_monitor = x;
/* XXX I think this is dangerous, due to
a likely mutex in the signal handlers ...
*/
}
int
-AudioEngine::_sample_rate_callback (jack_nframes_t nframes, void *arg)
+AudioEngine::_sample_rate_callback (nframes_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 (nframes_t nframes)
{
_frame_rate = nframes;
_usecs_per_cycle = (int) floor ((((double) frames_per_cycle() / nframes)) * 1000000.0);
monitor_check_interval = nframes / 10;
last_monitor_check = 0;
-
+
if (session) {
session->set_frame_rate (nframes);
}
}
int
-AudioEngine::_bufsize_callback (jack_nframes_t nframes, void *arg)
+AudioEngine::_bufsize_callback (nframes_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 (nframes_t nframes)
{
_buffer_size = nframes;
_usecs_per_cycle = (int) floor ((((double) nframes / frame_rate())) * 1000000.0);
last_monitor_check = 0;
- for (Ports::iterator i = ports.begin(); i != ports.end(); ++i) {
+ boost::shared_ptr<Ports> p = ports.reader();
+
+ for (Ports::iterator i = p->begin(); i != p->end(); ++i) {
(*i)->reset();
}
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), true);
+ }
+}
+
+void
+AudioEngine::meter_thread ()
+{
+ while (g_atomic_int_get(&m_meter_exit) != true) {
+ Glib::usleep (10000); /* 1/100th sec interval */
+ IO::update_meters ();
+ }
+}
+
void
AudioEngine::set_session (Session *s)
{
void
AudioEngine::remove_session ()
{
- LockMonitor lm (_process_lock, __LINE__, __FILE__);
+ Glib::Mutex::Lock lm (_process_lock);
if (_running) {
if (session) {
session_remove_pending = true;
- pthread_cond_wait (&session_removed, _process_lock.mutex());
+ session_removed.wait(_process_lock);
}
} else {
}
Port *
-AudioEngine::register_audio_input_port (const string& portname)
+AudioEngine::register_input_port (DataType type, const string& portname)
{
if (!_running) {
if (!_has_run) {
- fatal << _("register audio input port called before engine was started") << endmsg;
+ 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(), JACK_DEFAULT_AUDIO_TYPE, JackPortIsInput, 0);
+ jack_port_t *p = jack_port_register (_jack, portname.c_str(), type.to_jack_type(), JackPortIsInput, 0);
if (p) {
Port *newport;
+
if ((newport = new Port (p)) != 0) {
- ports.insert (ports.begin(), newport);
+ 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;
} else {
- pthread_mutex_unlock (_process_lock.mutex());
+ _process_lock.unlock();
throw PortRegistrationFailure();
}
}
Port *
-AudioEngine::register_audio_output_port (const string& portname)
+AudioEngine::register_output_port (DataType type, const string& portname)
{
if (!_running) {
if (!_has_run) {
- fatal << _("register audio output port called before engine was started") << endmsg;
+ fatal << _("register output port called before engine was started") << endmsg;
/*NOTREACHED*/
} else {
return 0;
jack_port_t *p;
- if ((p = jack_port_register (_jack, portname.c_str(), JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0)) != 0) {
- Port *newport = new Port (p);
- ports.insert (ports.begin(), newport);
+ if ((p = jack_port_register (_jack, portname.c_str(),
+ type.to_jack_type(), JackPortIsOutput, 0)) != 0) {
+
+ Port *newport = 0;
+
+ {
+ RCUWriter<Ports> writer (ports);
+ boost::shared_ptr<Ports> ps = writer.get_copy ();
+
+ newport = new Port (p);
+ ps->insert (ps->begin(), newport);
+
+ /* writer goes out of scope, forces update */
+ }
+
return newport;
} else {
- pthread_mutex_unlock (_process_lock.mutex());
+ _process_lock.unlock();
throw PortRegistrationFailure ();
}
return 0;
}
+
int
AudioEngine::unregister_port (Port *port)
{
if (port) {
- int ret = jack_port_unregister (_jack, port->port);
+ int ret = jack_port_unregister (_jack, port->_port);
if (ret == 0) {
-
- for (Ports::iterator i = ports.begin(); i != ports.end(); ++i) {
- if ((*i) == port) {
- ports.erase (i);
- break;
+
+ {
+
+ 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;
+ }
}
+
+ /* writer goes out of scope, forces update */
}
remove_connections_for (port);
if (ret == 0) {
pair<string,string> c (s, d);
port_connections.push_back (c);
+ } else if (ret == EEXIST) {
+ error << string_compose(_("AudioEngine: connection already exists: %1 (%2) to %3 (%4)"),
+ source, s, destination, d)
+ << endmsg;
} else {
error << string_compose(_("AudioEngine: cannot connect %1 (%2) to %3 (%4)"),
source, s, destination, d)
}
}
- int ret = jack_port_disconnect (_jack, port->port);
+ int ret = jack_port_disconnect (_jack, port->_port);
if (ret == 0) {
remove_connections_for (port);
}
-jack_nframes_t
+nframes_t
AudioEngine::frame_rate ()
{
if (_jack) {
}
}
-jack_nframes_t
+nframes_t
AudioEngine::frames_per_cycle ()
{
if (_jack) {
Port *
AudioEngine::get_port_by_name (const string& portname, bool keep)
{
- LockMonitor lm (_process_lock, __LINE__, __FILE__);
+ Glib::Mutex::Lock lm (_process_lock);
if (!_running) {
if (!_has_run) {
/* check to see if we have a Port for this name already */
- for (Ports::iterator i = ports.begin(); i != ports.end(); ++i) {
+ boost::shared_ptr<Ports> pr = ports.reader();
+
+ for (Ports::iterator i = pr->begin(); i != pr->end(); ++i) {
if (portname == (*i)->name()) {
return (*i);
}
if ((p = jack_port_by_name (_jack, portname.c_str())) != 0) {
Port *newport = new Port (p);
- if (keep && newport->is_mine (_jack)) {
- ports.insert (newport);
+
+ {
+ if (keep && newport->is_mine (_jack)) {
+ RCUWriter<Ports> writer (ports);
+ boost::shared_ptr<Ports> ps = writer.get_copy ();
+ ps->insert (newport);
+ /* writer goes out of scope, forces update */
+ }
}
+
return newport;
+
} else {
+
return 0;
}
}
return i;
}
-string
+void
+AudioEngine::get_physical_inputs (vector<string>& ins)
+{
+ const char ** ports;
+ uint32_t i = 0;
+
+ if (!_jack) {
+ return;
+ }
+
+ if ((ports = jack_get_ports (_jack, NULL, NULL, JackPortIsPhysical|JackPortIsOutput)) == 0) {
+ return;
+ }
+
+ if (ports) {
+ for (i = 0; ports[i]; ++i) {
+ ins.push_back (ports[i]);
+ }
+ free (ports);
+ }
+}
+
+void
+AudioEngine::get_physical_outputs (vector<string>& outs)
+{
+ const char ** ports;
+ uint32_t i = 0;
+
+ if (!_jack) {
+ return;
+ }
+
+ if ((ports = jack_get_ports (_jack, NULL, NULL, JackPortIsPhysical|JackPortIsInput)) == 0) {
+ return;
+ }
+ if (ports) {
+ for (i = 0; ports[i]; ++i) {
+ outs.push_back (ports[i]);
+ }
+ free (ports);
+ }
+}
+
+string
AudioEngine::get_nth_physical (uint32_t n, int flag)
{
const char ** ports;
return ret;
}
-jack_nframes_t
+nframes_t
AudioEngine::get_port_total_latency (const Port& port)
{
if (!_jack) {
}
}
- return jack_port_get_total_latency (_jack, port.port);
+ return jack_port_get_total_latency (_jack, port._port);
}
void
}
void
-AudioEngine::transport_locate (jack_nframes_t where)
+AudioEngine::transport_locate (nframes_t where)
{
// cerr << "tell JACK to locate to " << where << endl;
if (_jack) {
/* process lock MUST be held */
if (_jack) {
- for (Ports::iterator i = ports.begin(); i != ports.end(); ++i) {
- jack_port_unregister (_jack, (*i)->port);
+ boost::shared_ptr<Ports> p = ports.reader();
+
+ for (Ports::iterator i = p->begin(); i != p->end(); ++i) {
+ jack_port_unregister (_jack, (*i)->_port);
}
}
- ports.clear ();
+ {
+ RCUWriter<Ports> writer (ports);
+ boost::shared_ptr<Ports> ps = writer.get_copy ();
+ ps->clear ();
+ }
+
port_connections.clear ();
}
if (_jack) {
disconnect_from_jack ();
/* XXX give jackd a chance */
- usleep (250000);
+ Glib::usleep (250000);
}
if (connect_to_jack (jack_client_name)) {
Ports::iterator i;
- for (i = ports.begin(); i != ports.end(); ++i) {
+ boost::shared_ptr<Ports> p = ports.reader ();
+
+ for (i = p->begin(); i != p->end(); ++i) {
/* XXX hack hack hack */
short_name = long_name.substr (long_name.find_last_of (':') + 1);
- if (((*i)->port = jack_port_register (_jack, short_name.c_str(), (*i)->type(), (*i)->flags(), 0)) == 0) {
+ if (((*i)->_port = jack_port_register (_jack, short_name.c_str(), (*i)->type(), (*i)->flags(), 0)) == 0) {
error << string_compose (_("could not reregister %1"), (*i)->name()) << endmsg;
break;
} else {
}
}
- if (i != ports.end()) {
- for (Ports::iterator i = ports.begin(); i != ports.end(); ++i) {
- jack_port_unregister (_jack, (*i)->port);
+ if (i != p->end()) {
+ /* failed */
+ for (Ports::iterator i = p->begin(); i != p->end(); ++i) {
+ jack_port_unregister (_jack, (*i)->_port);
}
return -1;
}
if (session) {
- jack_nframes_t blocksize = jack_get_buffer_size (_jack);
+ nframes_t blocksize = jack_get_buffer_size (_jack);
session->set_block_size (blocksize);
session->set_frame_rate (jack_get_sample_rate (_jack));
}
}
int
-AudioEngine::request_buffer_size (jack_nframes_t nframes)
+AudioEngine::request_buffer_size (nframes_t nframes)
{
if (_jack) {
int ret = jack_set_buffer_size (_jack, nframes);
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