#include "ardour/mtdm.h"
#include "ardour/port.h"
#include "ardour/process_thread.h"
+#include "ardour/rc_configuration.h"
#include "ardour/session.h"
-#include "i18n.h"
+#include "pbd/i18n.h"
using namespace std;
using namespace ARDOUR;
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)
- , _hw_reset_event_thread(0)
- , _hw_reset_request_count(0)
- , _stop_hw_reset_processing(0)
- , _hw_devicelist_update_thread(0)
- , _hw_devicelist_update_count(0)
- , _stop_hw_devicelist_processing(0)
+ , _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)
+ , _hw_devicelist_update_thread(0)
+ , _hw_devicelist_update_count(0)
+ , _stop_hw_devicelist_processing(0)
#ifdef SILENCE_AFTER_SECONDS
, _silence_countdown (0)
, _silence_hit_cnt (0)
for (BackendMap::const_iterator i = _backends.begin(); i != _backends.end(); ++i) {
i->second->deinstantiate();
}
+ delete _main_thread;
}
AudioEngine*
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) {
PortManager::silence (nframes);
PortManager::cycle_end (nframes);
- if (_latency_flush_frames > nframes) {
- _latency_flush_frames -= nframes;
- } else {
- _latency_flush_frames = 0;
- }
+ if (_latency_flush_frames > nframes) {
+ _latency_flush_frames -= nframes;
+ } else {
+ _latency_flush_frames = 0;
+ }
return_after_remove_check = true;
}
PortManager::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 (which is what Freewheel.empty() tests for).
- */
+ * ardour should act normally even when freewheeling unless /it/ is
+ * exporting (which is what Freewheel.empty() tests for).
+ */
if (_freewheeling && !Freewheel.empty()) {
Freewheel (nframes);
#else
if (_session->silent()) {
- PortManager::silence (nframes);
+ PortManager::silence (nframes, _session);
}
#endif
void
AudioEngine::request_backend_reset()
{
- Glib::Threads::Mutex::Lock guard (_reset_request_lock);
- g_atomic_int_inc (&_hw_reset_request_count);
- _hw_reset_condition.signal ();
+ Glib::Threads::Mutex::Lock guard (_reset_request_lock);
+ g_atomic_int_inc (&_hw_reset_request_count);
+ _hw_reset_condition.signal ();
}
int
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
+ std::cout << "AudioEngine::RESET::Reset request processing. Requests left: " << _hw_reset_request_count << std::endl;
+ DeviceResetStarted(); // notify about device reset to be started
- // backup the device name
- std::string name = _backend->device_name ();
+ // backup the device name
+ std::string name = _backend->device_name ();
- std::cout << "AudioEngine::RESET::Reseting device..." << std::endl;
+ std::cout << "AudioEngine::RESET::Reseting device..." << std::endl;
if ( ( 0 == stop () ) &&
- ( 0 == _backend->reset_device () ) &&
- ( 0 == start () ) ) {
+ ( 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
+ DeviceResetFinished(); // notify about device reset finish
- } else {
+ } else {
- DeviceResetFinished(); // notify about device reset finish
+ DeviceResetFinished(); // notify about device reset finish
// we've got an error
- DeviceError();
+ DeviceError();
}
std::cout << "AudioEngine::RESET::Done." << std::endl;
}
}
}
+
void
AudioEngine::request_device_list_update()
{
- Glib::Threads::Mutex::Lock guard (_devicelist_update_lock);
- g_atomic_int_inc (&_hw_devicelist_update_count);
- _hw_devicelist_update_condition.signal ();
+ Glib::Threads::Mutex::Lock guard (_devicelist_update_lock);
+ g_atomic_int_inc (&_hw_devicelist_update_count);
+ _hw_devicelist_update_condition.signal ();
}
-
void
AudioEngine::do_devicelist_update()
{
- SessionEvent::create_per_thread_pool (X_("Device list update processing thread"), 512);
+ SessionEvent::create_per_thread_pool (X_("Device list update processing thread"), 512);
- Glib::Threads::Mutex::Lock guard (_devicelist_update_lock);
+ Glib::Threads::Mutex::Lock guard (_devicelist_update_lock);
- while (!_stop_hw_devicelist_processing) {
+ while (!_stop_hw_devicelist_processing) {
- if (_hw_devicelist_update_count) {
+ if (_hw_devicelist_update_count) {
- _devicelist_update_lock.unlock();
+ _devicelist_update_lock.unlock();
- Glib::Threads::RecMutex::Lock pl (_state_lock);
+ Glib::Threads::RecMutex::Lock pl (_state_lock);
- g_atomic_int_dec_and_test (&_hw_devicelist_update_count);
- DeviceListChanged (); /* EMIT SIGNAL */
+ g_atomic_int_dec_and_test (&_hw_devicelist_update_count);
+ DeviceListChanged (); /* EMIT SIGNAL */
- _devicelist_update_lock.lock();
+ _devicelist_update_lock.lock();
- } else {
- _hw_devicelist_update_condition.wait (_devicelist_update_lock);
- }
- }
+ } else {
+ _hw_devicelist_update_condition.wait (_devicelist_update_lock);
+ }
+ }
}
void
AudioEngine::start_hw_event_processing()
{
- if (_hw_reset_event_thread == 0) {
- g_atomic_int_set(&_hw_reset_request_count, 0);
- g_atomic_int_set(&_stop_hw_reset_processing, 0);
- _hw_reset_event_thread = Glib::Threads::Thread::create (boost::bind (&AudioEngine::do_reset_backend, this));
- }
+ if (_hw_reset_event_thread == 0) {
+ g_atomic_int_set(&_hw_reset_request_count, 0);
+ g_atomic_int_set(&_stop_hw_reset_processing, 0);
+ _hw_reset_event_thread = Glib::Threads::Thread::create (boost::bind (&AudioEngine::do_reset_backend, this));
+ }
- if (_hw_devicelist_update_thread == 0) {
- g_atomic_int_set(&_hw_devicelist_update_count, 0);
- g_atomic_int_set(&_stop_hw_devicelist_processing, 0);
- _hw_devicelist_update_thread = Glib::Threads::Thread::create (boost::bind (&AudioEngine::do_devicelist_update, this));
- }
+ if (_hw_devicelist_update_thread == 0) {
+ g_atomic_int_set(&_hw_devicelist_update_count, 0);
+ g_atomic_int_set(&_stop_hw_devicelist_processing, 0);
+ _hw_devicelist_update_thread = Glib::Threads::Thread::create (boost::bind (&AudioEngine::do_devicelist_update, this));
+ }
}
void
AudioEngine::stop_hw_event_processing()
{
- if (_hw_reset_event_thread) {
- g_atomic_int_set(&_stop_hw_reset_processing, 1);
- g_atomic_int_set(&_hw_reset_request_count, 0);
- _hw_reset_condition.signal ();
- _hw_reset_event_thread->join ();
- _hw_reset_event_thread = 0;
- }
-
- if (_hw_devicelist_update_thread) {
- g_atomic_int_set(&_stop_hw_devicelist_processing, 1);
- g_atomic_int_set(&_hw_devicelist_update_count, 0);
- _hw_devicelist_update_condition.signal ();
- _hw_devicelist_update_thread->join ();
- _hw_devicelist_update_thread = 0;
- }
+ if (_hw_reset_event_thread) {
+ g_atomic_int_set(&_stop_hw_reset_processing, 1);
+ g_atomic_int_set(&_hw_reset_request_count, 0);
+ _hw_reset_condition.signal ();
+ _hw_reset_event_thread->join ();
+ _hw_reset_event_thread = 0;
+ }
+ if (_hw_devicelist_update_thread) {
+ g_atomic_int_set(&_stop_hw_devicelist_processing, 1);
+ g_atomic_int_set(&_hw_devicelist_update_count, 0);
+ _hw_devicelist_update_condition.signal ();
+ _hw_devicelist_update_thread->join ();
+ _hw_devicelist_update_thread = 0;
+ }
}
-
void
AudioEngine::set_session (Session *s)
{
return info;
}
+#ifdef NDEBUG
+static bool running_from_source_tree ()
+{
+ // dup ARDOUR_UI_UTILS::running_from_source_tree ()
+ gchar const *x = g_getenv ("ARDOUR_THEMES_PATH");
+ return x && (string (x).find ("gtk2_ardour") != string::npos);
+}
+#endif
+
vector<const AudioBackendInfo*>
AudioEngine::available_backends() const
{
vector<const AudioBackendInfo*> r;
for (BackendMap::const_iterator i = _backends.begin(); i != _backends.end(); ++i) {
+#ifdef NDEBUG
+ if (i->first == "None (Dummy)" && !running_from_source_tree () && Config->get_hide_dummy_backend ()) {
+ continue;
+ }
+#endif
r.push_back (i->second);
}
int error_code = _backend->start (for_latency);
if (error_code != 0) {
- _last_backend_error_string =
- AudioBackend::get_error_string((AudioBackend::ErrorCode)error_code);
+ _last_backend_error_string = AudioBackend::get_error_string((AudioBackend::ErrorCode) error_code);
return -1;
}
}
+ /* XXX MIDI ports may not actually be available here yet .. */
+
+ PortManager::fill_midi_port_info ();
+
if (!for_latency) {
Running(); /* EMIT SIGNAL */
}
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;
+ if (_running) {
+ _backend->start (false); // keep running, reload latencies
+ }
+ } else {
+ if (_backend->stop ()) {
+ if (pl.locked ()) {
+ 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) {
+ _running = false;
+ if (!for_latency) {
+ _started_for_latency = false;
+ } else if (!_started_for_latency) {
+ _stopped_for_latency = true;
+ }
+ }
_processed_frames = 0;
_measuring_latency = MeasureNone;
_latency_output_port = 0;
_latency_input_port = 0;
- _started_for_latency = false;
- Port::PortDrop ();
+ if (stop_engine) {
+ Port::PortDrop ();
+ }
- if (!for_latency) {
+ if (stop_engine) {
Stopped (); /* EMIT SIGNAL */
}
float
AudioEngine::get_dsp_load() const
{
- if (!_backend) {
+ if (!_backend || !_running) {
return 0.0;
}
return _backend->dsp_load ();
bool
AudioEngine::thread_initialised_for_audio_processing ()
{
- return SessionEvent::has_per_thread_pool () && AsyncMIDIPort::is_process_thread();
+ return SessionEvent::has_per_thread_pool () && AsyncMIDIPort::is_process_thread();
}
/* END OF BACKEND PROXY API */
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;
}
void
AudioEngine::latency_callback (bool for_playback)
{
- if (_session) {
- _session->update_latency (for_playback);
- }
+ if (_session) {
+ _session->update_latency (for_playback);
+ }
}
void
int
AudioEngine::prepare_for_latency_measurement ()
{
+ if (!_backend) {
+ return -1;
+ }
+
+ if (running() && _started_for_latency) {
+ return 0;
+ }
+
+ if (_backend->can_change_systemic_latency_when_running()) {
+ if (_running) {
+ _backend->start (true); // zero latency reporting of running backend
+ } else if (start (true)) {
+ return -1;
+ }
+ _started_for_latency = true;
+ 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 (_running && _backend->can_change_systemic_latency_when_running()) {
+ if (_started_for_latency) {
+ _running = false; // force reload: reset latencies and emit Running()
+ start ();
+ }
+ }
+
+ if (_running && !_started_for_latency) {
+ assert (!_stopped_for_latency);
+ return;
+ }
+
+ if (!_backend->can_change_systemic_latency_when_running()) {
+ stop (true);
+ }
if (_stopped_for_latency) {
start ();
{
_latency_input_name = name;
}
+
+void
+AudioEngine::add_pending_port_deletion (Port* p)
+{
+ if (_session) {
+ DEBUG_TRACE (DEBUG::Ports, string_compose ("adding %1 to pending port deletion list\n", p->name()));
+ if (_port_deletions_pending.write (&p, 1) != 1) {
+ error << string_compose (_("programming error: port %1 could not be placed on the pending deletion queue\n"), p->name()) << endmsg;
+ }
+ _session->auto_connect_thread_wakeup ();
+ } else {
+ DEBUG_TRACE (DEBUG::Ports, string_compose ("Directly delete port %1\n", p->name()));
+ delete p;
+ }
+}