AudioEngine* AudioEngine::_instance = 0;
+static gint audioengine_thread_cnt = 1;
+
#ifdef SILENCE_AFTER
#define SILENCE_AFTER_SECONDS 600
#endif
, _stopped_for_latency (false)
, _started_for_latency (false)
, _in_destructor (false)
+ , _last_backend_error_string(AudioBackend::get_error_string((AudioBackend::ErrorCode)-1))
, _hw_reset_event_thread(0)
, _hw_reset_request_count(0)
, _stop_hw_reset_processing(0)
for (BackendMap::const_iterator i = _backends.begin(); i != _backends.end(); ++i) {
i->second->deinstantiate();
}
+ delete _main_thread;
}
AudioEngine*
}
_instance = new AudioEngine ();
-
+
return _instance;
}
#ifdef SILENCE_AFTER_SECONDS
_silence_countdown = nframes * SILENCE_AFTER_SECONDS;
#endif
-
+
return 0;
}
return 0;
}
+ /* The coreaudio-backend calls thread_init_callback() if
+ * the hardware changes or pthread_self() changes.
+ *
+ * However there are cases when neither holds true, yet
+ * the thread-pool changes: e.g. connect a headphone to
+ * a shared mic/headphone jack.
+ * It's probably related to, or caused by clocksource changes.
+ *
+ * For reasons yet unknown Glib::Threads::Private() can
+ * use a different thread-private in the same pthread
+ * (coreaudio render callback).
+ *
+ * Coreaudio must set something which influences
+ * pthread_key_t uniqness or reset the key using
+ * pthread_getspecific().
+ */
+ if (! SessionEvent::has_per_thread_pool ()) {
+ thread_init_callback (NULL);
+ }
+
bool return_after_remove_check = false;
if (_measuring_latency == MeasureAudio && _mtdm) {
/* run a normal cycle from the perspective of the PortManager
so that we get silence on all registered ports.
-
+
we overwrite the silence on the two ports used for latency
measurement.
*/
-
+
PortManager::cycle_start (nframes);
PortManager::silence (nframes);
return_after_remove_check = true;
} else if (_latency_flush_frames) {
-
+
/* wait for the appropriate duration for the MTDM signal to
* drain from the ports before we revert to normal behaviour.
*/
PortManager::cycle_start (nframes);
PortManager::silence (nframes);
PortManager::cycle_end (nframes);
-
+
if (_latency_flush_frames > nframes) {
_latency_flush_frames -= nframes;
} else {
} 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
}
if (last_monitor_check + monitor_check_interval < next_processed_frames) {
-
+
PortManager::check_monitoring ();
last_monitor_check = next_processed_frames;
}
#ifdef SILENCE_AFTER_SECONDS
bool was_silent = (_silence_countdown == 0);
-
+
if (_silence_countdown >= nframes) {
_silence_countdown -= nframes;
} else {
if (_silence_countdown == 0 || _session->silent()) {
PortManager::silence (nframes);
}
-
-#else
+
+#else
if (_session->silent()) {
- PortManager::silence (nframes);
+ PortManager::silence (nframes, _session);
}
#endif
-
+
if (session_remove_pending && session_removal_countdown) {
PortManager::fade_out (session_removal_gain, session_removal_gain_step, nframes);
-
+
if (session_removal_countdown > nframes) {
session_removal_countdown -= nframes;
} else {
_processed_frames = next_processed_frames;
PT_TIMING_CHECK (2);
-
+
return 0;
}
while (!_stop_hw_reset_processing) {
if (g_atomic_int_get (&_hw_reset_request_count) != 0 && _backend) {
-
+
_reset_request_lock.unlock();
-
+
Glib::Threads::RecMutex::Lock pl (_state_lock);
g_atomic_int_dec_and_test (&_hw_reset_request_count);
-
+
std::cout << "AudioEngine::RESET::Reset request processing. Requests left: " << _hw_reset_request_count << std::endl;
DeviceResetStarted(); // notify about device reset to be started
if ( ( 0 == stop () ) &&
( 0 == _backend->reset_device () ) &&
( 0 == start () ) ) {
-
+
std::cout << "AudioEngine::RESET::Engine started..." << std::endl;
-
+
// inform about possible changes
BufferSizeChanged (_backend->buffer_size() );
DeviceResetFinished(); // notify about device reset finish
// we've got an error
DeviceError();
}
-
+
std::cout << "AudioEngine::RESET::Done." << std::endl;
_reset_request_lock.lock();
_hw_devicelist_update_thread->join ();
_hw_devicelist_update_thread = 0;
}
-
+
}
if (_session) {
_session->reconnect_existing_routes(true, true, reconnect_inputs, reconnect_outputs);
}
-#endif
+#endif
}
Glib::Module::get_last_error()) << endmsg;
return 0;
}
-
+
if (!module.get_symbol ("descriptor", func)) {
error << string_compose(_("AudioEngine: backend at \"%1\" has no descriptor function."), path) << endmsg;
error << Glib::Module::get_last_error() << endmsg;
return 0;
}
-
+
dfunc = (AudioBackendInfo* (*)(void))func;
info = dfunc();
if (!info->available()) {
}
module.make_resident ();
-
+
return info;
}
AudioEngine::available_backends() const
{
vector<const AudioBackendInfo*> r;
-
+
for (BackendMap::const_iterator i = _backends.begin(); i != _backends.end(); ++i) {
r.push_back (i->second);
}
}
drop_backend ();
-
+
try {
if (b->second->instantiate (arg1, arg2)) {
throw failed_constructor ();
}
-
+
_backend = b->second->factory (*this);
} catch (exception& e) {
}
_running = true;
-
+
if (_session) {
_session->set_frame_rate (_backend->sample_rate());
-
+
if (_session->config.get_jack_time_master()) {
_backend->set_time_master (true);
}
}
-
+
if (!for_latency) {
Running(); /* EMIT SIGNAL */
}
-
+
return 0;
}
int
AudioEngine::stop (bool for_latency)
{
+ bool stop_engine = true;
+
if (!_backend) {
return 0;
}
pl.acquire ();
}
- if (_backend->stop ()) {
- return -1;
+ if (for_latency && _backend->can_change_systemic_latency_when_running()) {
+ stop_engine = false;
+ } else {
+ if (_backend->stop ()) {
+ pl.release ();
+ return -1;
+ }
}
if (pl.locked ()) {
pl.release ();
}
- if (_session && _running &&
+ if (_session && _running && stop_engine &&
(_session->state_of_the_state() & Session::Loading) == 0 &&
(_session->state_of_the_state() & Session::Deletion) == 0) {
// it's not a halt, but should be handled the same way:
_session->engine_halted ();
}
- _running = false;
+ if (stop_engine) {
+ _running = false;
+ }
_processed_frames = 0;
_measuring_latency = MeasureNone;
_latency_output_port = 0;
_latency_input_port = 0;
_started_for_latency = false;
-
- Port::PortDrop ();
- if (!for_latency) {
+ if (stop_engine) {
+ Port::PortDrop ();
+ }
+
+ if (!for_latency && stop_engine) {
Stopped (); /* EMIT SIGNAL */
}
-
+
return 0;
}
float
AudioEngine::get_dsp_load() const
{
- if (!_backend) {
+ if (!_backend || !_running) {
return 0.0;
}
return _backend->dsp_load ();
pthread_set_name (X_("audioengine"));
- SessionEvent::create_per_thread_pool (X_("AudioEngine"), 512);
-
- PBD::notify_gui_about_thread_creation ("gui", pthread_self(), X_("AudioEngine"), 4096);
- PBD::notify_gui_about_thread_creation ("midiui", pthread_self(), X_("AudioEngine"), 128);
+ const int thread_num = g_atomic_int_add (&audioengine_thread_cnt, 1);
+ const string thread_name = string_compose (X_("AudioEngine %1"), thread_num);
+ SessionEvent::create_per_thread_pool (thread_name, 512);
+ PBD::notify_event_loops_about_thread_creation (pthread_self(), thread_name, 4096);
AsyncMIDIPort::set_process_thread (pthread_self());
if (arg) {
+ delete AudioEngine::instance()->_main_thread;
/* the special thread created/managed by the backend */
AudioEngine::instance()->_main_thread = new ProcessThread;
}
return false;
}
}
-
+
return true;
}
int
AudioEngine::prepare_for_latency_measurement ()
{
+ if (!_backend) {
+ return -1;
+ }
+
+ if (_backend->can_change_systemic_latency_when_running()) {
+ if (start()) {
+ return -1;
+ }
+ _backend->set_systemic_input_latency (0);
+ _backend->set_systemic_output_latency (0);
+ return 0;
+ }
+
if (running()) {
_stopped_for_latency = true;
stop (true);
}
if (start (true)) {
- _started_for_latency = true;
return -1;
}
+ _started_for_latency = true;
return 0;
}
int
AudioEngine::start_latency_detection (bool for_midi)
{
- if (!running()) {
- if (prepare_for_latency_measurement ()) {
- return -1;
- }
+ if (prepare_for_latency_measurement ()) {
+ return -1;
}
PortEngine& pe (port_engine());
_latency_input_port = 0;
}
- stop (true);
+ if (!_backend->can_change_systemic_latency_when_running()) {
+ stop (true);
+ }
if (_stopped_for_latency) {
start ();
projects / ardour.git / blobdiff