lm_measure_button.add (lm_measure_label);
lm_measure_button.signal_clicked().connect (sigc::mem_fun (*this, &EngineControl::latency_button_clicked));
lm_use_button.signal_clicked().connect (sigc::mem_fun (*this, &EngineControl::use_latency_button_clicked));
- lm_back_button_signal = lm_back_button.signal_clicked().connect (sigc::bind (sigc::mem_fun (notebook, &Gtk::Notebook::set_current_page), 0));
+ lm_back_button_signal = lm_back_button.signal_clicked().connect(
+ sigc::mem_fun(*this, &EngineControl::latency_back_button_clicked));
lm_use_button.set_sensitive (false);
sigc::mem_fun (*this, &EngineControl::sample_rate_changed));
buffer_size_combo_connection = buffer_size_combo.signal_changed ().connect (
sigc::mem_fun (*this, &EngineControl::buffer_size_changed));
+ nperiods_combo_connection = nperiods_combo.signal_changed ().connect (
+ sigc::mem_fun (*this, &EngineControl::nperiods_changed));
device_combo_connection = device_combo.signal_changed ().connect (
sigc::mem_fun (*this, &EngineControl::device_changed));
midi_option_combo_connection = midi_option_combo.signal_changed ().connect (
driver_combo_connection.block ();
sample_rate_combo_connection.block ();
buffer_size_combo_connection.block ();
+ nperiods_combo_connection.block ();
device_combo_connection.block ();
input_device_combo_connection.block ();
output_device_combo_connection.block ();
driver_combo_connection.unblock ();
sample_rate_combo_connection.unblock ();
buffer_size_combo_connection.unblock ();
+ nperiods_combo_connection.unblock ();
device_combo_connection.unblock ();
input_device_combo_connection.unblock ();
output_device_combo_connection.unblock ();
return true;
}
+bool
+EngineControl::stop_engine (bool for_latency)
+{
+ if (ARDOUR::AudioEngine::instance()->stop(for_latency)) {
+ MessageDialog msg(*this,
+ ARDOUR::AudioEngine::instance()->get_last_backend_error());
+ msg.run();
+ return false;
+ }
+ return true;
+}
+
void
EngineControl::on_response (int response_id)
{
buffer_size_duration_label.set_alignment (0.0); /* left-align */
basic_packer.attach (buffer_size_duration_label, 2, 3, row, row+1, SHRINK, (AttachOptions) 0);
- /* button spans 2 rows */
+ int ctrl_btn_span = 1;
+ if (backend->can_set_period_size ()) {
+ row++;
+ label = manage (left_aligned_label (_("Periods:")));
+ basic_packer.attach (*label, 0, 1, row, row + 1, xopt, (AttachOptions) 0);
+ basic_packer.attach (nperiods_combo, 1, 2, row, row + 1, xopt, (AttachOptions) 0);
+ ++ctrl_btn_span;
+ }
+
+ /* button spans 2 or 3 rows */
- basic_packer.attach (control_app_button, 3, 4, row-1, row+1, xopt, xopt);
+ basic_packer.attach (control_app_button, 3, 4, row - ctrl_btn_span, row + 1, xopt, xopt);
row++;
input_channels.set_name ("InputChannels");
lm_back_button_signal = lm_back_button.signal_clicked().connect (sigc::bind (sigc::mem_fun (notebook, &Gtk::Notebook::set_current_page), midi_tab));
lm_preamble.hide ();
} else {
- lm_back_button_signal = lm_back_button.signal_clicked().connect (sigc::bind (sigc::mem_fun (notebook, &Gtk::Notebook::set_current_page), 0));
+ lm_back_button_signal = lm_back_button.signal_clicked().connect(
+ sigc::mem_fun(*this, &EngineControl::latency_back_button_clicked));
lm_preamble.show ();
}
valid = false;
}
+ if (get_popdown_string_count (nperiods_combo) > 0) {
+ if (!ARDOUR::AudioEngine::instance()->running()) {
+ nperiods_combo.set_sensitive (true);
+ } else {
+ nperiods_combo.set_sensitive (false);
+ }
+ } else {
+ nperiods_combo.set_sensitive (false);
+ }
+
if (_have_control) {
start_stop_button.set_sensitive(true);
start_stop_button.show();
*/
engine_stopped (); // set "active/inactive"
+ if (!_have_control) {
+ // set settings from backend that we do have control over
+ set_active_text_if_present (buffer_size_combo, bufsize_as_string (backend->buffer_size()));
+ }
+
+ if (_have_control && !ignore_changes) {
+ // set driver & devices
+ State state = get_matching_state (backend_combo.get_active_text());
+ if (state) {
+ PBD::Unwinder<uint32_t> protect_ignore_changes (ignore_changes, ignore_changes + 1);
+ set_current_state (state);
+ }
+ }
+
if (!ignore_changes) {
maybe_display_saved_state ();
}
backend->set_driver (driver_combo.get_active_text());
list_devices ();
+ // TODO load LRU device(s) for backend + driver combo
+
if (!ignore_changes) {
maybe_display_saved_state ();
}
update_sensitivity ();
}
+void
+EngineControl::set_nperiods_popdown_strings ()
+{
+ DEBUG_ECONTROL ("set_nperiods_popdown_strings");
+ boost::shared_ptr<ARDOUR::AudioBackend> backend = ARDOUR::AudioEngine::instance()->current_backend();
+ vector<uint32_t> np;
+ vector<string> s;
+
+ if (backend->can_set_period_size()) {
+ np = backend->available_period_sizes (get_driver());
+ }
+
+ for (vector<uint32_t>::const_iterator x = np.begin(); x != np.end(); ++x) {
+ s.push_back (nperiods_as_string (*x));
+ }
+
+ set_popdown_strings (nperiods_combo, s);
+
+ if (!s.empty()) {
+ set_active_text_if_present (nperiods_combo, nperiods_as_string (backend->period_size())); // XXX
+ }
+
+ update_sensitivity ();
+}
+
void
EngineControl::device_changed ()
{
set_samplerate_popdown_strings ();
set_buffersize_popdown_strings ();
+ set_nperiods_popdown_strings ();
/* TODO set min + max channel counts here */
return buf;
}
+string
+EngineControl::nperiods_as_string (uint32_t np)
+{
+ char buf[8];
+ snprintf (buf, sizeof (buf), "%u", np);
+ return buf;
+}
+
+
void
EngineControl::sample_rate_changed ()
{
show_buffer_duration ();
}
+void
+EngineControl::nperiods_changed ()
+{
+ DEBUG_ECONTROL ("nperiods_changed");
+ show_buffer_duration ();
+}
+
void
EngineControl::show_buffer_duration ()
{
uint32_t samples = atoi (bs_text); /* will ignore trailing text */
uint32_t rate = get_rate();
- /* Developers: note the hard-coding of a double buffered model
- in the (2 * samples) computation of latency. we always start
- the audiobackend in this configuration.
- */
- /* note to jack1 developers: ardour also always starts the engine
- * in async mode (no jack2 --sync option) which adds an extra cycle
- * of latency with jack2 (and *3 would be correct)
- * The value can also be wrong if jackd is started externally..
+ /* Except for ALSA and Dummy backends, we don't know the number of periods
+ * per cycle and settings.
*
- * At the time of writing the ALSA backend always uses double-buffering *2,
- * The Dummy backend *1, and who knows what ASIO really does :)
+ * jack1 vs jack2 have different default latencies since jack2 start
+ * in async-mode unless --sync is given which adds an extra cycle
+ * of latency. The value is not known if jackd is started externally..
*
* So just display the period size, that's also what
* ARDOUR_UI::update_sample_rate() does for the status bar.
{
}
+EngineControl::State
+EngineControl::get_matching_state (const string& backend)
+{
+ for (StateList::iterator i = states.begin(); i != states.end(); ++i) {
+ if ((*i)->backend == backend) {
+ return (*i);
+ }
+ }
+ return State();
+}
+
EngineControl::State
EngineControl::get_matching_state (
const string& backend,
return false;
}
+bool
+EngineControl::state_sort_cmp (const State &a, const State &b) {
+ if (a->active) {
+ return true;
+ }
+ else if (b->active) {
+ return false;
+ }
+ else {
+ return a->lru < b->lru;
+ }
+}
+
EngineControl::State
EngineControl::save_state ()
{
if (!_have_control) {
state = get_matching_state (backend_combo.get_active_text(), string(), string());
if (state) {
+ state->lru = time (NULL) ;
return state;
}
state.reset(new StateStruct);
states.push_back (state);
+ states.sort (state_sort_cmp);
+
return state;
}
state->output_device = get_output_device_name ();
state->sample_rate = get_rate ();
state->buffer_size = get_buffer_size ();
+ state->n_periods = get_nperiods ();
state->input_latency = get_input_latency ();
state->output_latency = get_output_latency ();
state->input_channels = get_input_channels ();
state->output_channels = get_output_channels ();
state->midi_option = get_midi_option ();
state->midi_devices = _midi_devices;
+ state->lru = time (NULL) ;
}
void
sample_rate_combo.set_active_text (rate_as_string (state->sample_rate));
}
set_active_text_if_present (buffer_size_combo, bufsize_as_string (state->buffer_size));
+
+ set_active_text_if_present (nperiods_combo, nperiods_as_string (state->n_periods));
/* call this explicitly because we're ignoring changes to
the controls at this point.
*/
node->add_property ("output-device", (*i)->output_device);
node->add_property ("sample-rate", (*i)->sample_rate);
node->add_property ("buffer-size", (*i)->buffer_size);
+ node->add_property ("n-periods", (*i)->n_periods);
node->add_property ("input-latency", (*i)->input_latency);
node->add_property ("output-latency", (*i)->output_latency);
node->add_property ("input-channels", (*i)->input_channels);
node->add_property ("output-channels", (*i)->output_channels);
node->add_property ("active", (*i)->active ? "yes" : "no");
node->add_property ("midi-option", (*i)->midi_option);
+ node->add_property ("lru", (*i)->active ? time (NULL) : (*i)->lru);
XMLNode* midi_devices = new XMLNode ("MIDIDevices");
for (std::vector<MidiDeviceSettings>::const_iterator p = (*i)->midi_devices.begin(); p != (*i)->midi_devices.end(); ++p) {
}
state->buffer_size = atoi (prop->value ());
+ if ((prop = grandchild->property ("n-periods")) == 0) {
+ // optional (new value in 4.5)
+ state->n_periods = 0;
+ } else {
+ state->n_periods = atoi (prop->value ());
+ }
+
if ((prop = grandchild->property ("input-latency")) == 0) {
continue;
}
}
}
+ if ((prop = grandchild->property ("lru"))) {
+ state->lru = atoi (prop->value ());
+ }
+
#if 1
/* remove accumulated duplicates (due to bug in ealier version)
* this can be removed again before release
}
}
+ states.sort (state_sort_cmp);
+
for (StateList::const_iterator i = states.begin(); i != states.end(); ++i) {
if ((*i)->active) {
// do the right thing
backend_combo.set_active_text (state->backend);
+ if (!ARDOUR::AudioEngine::instance()->setup_required ()) {
+ backend_changed ();
+ // we don't have control don't restore state
+ return true;
+ }
+
+
if (!state->driver.empty ()) {
if (!backend->requires_driver_selection ()) {
DEBUG_ECONTROL ("Backend should require driver selection");
output_device_combo.set_active_text (state->output_device);
sample_rate_combo.set_active_text (rate_as_string (state->sample_rate));
set_active_text_if_present (buffer_size_combo, bufsize_as_string (state->buffer_size));
+ set_active_text_if_present (nperiods_combo, nperiods_as_string (state->n_periods));
input_latency.set_value (state->input_latency);
output_latency.set_value (state->output_latency);
midi_option_combo.set_active_text (state->midi_option);
bool change_device = false;
bool change_rate = false;
bool change_bufsize = false;
+ bool change_nperiods = false;
bool change_latency = false;
bool change_channels = false;
bool change_midi = false;
change_bufsize = true;
}
+ if (backend->can_set_period_size() && get_popdown_string_count (nperiods_combo) > 0
+ && get_nperiods() != backend->period_size()) {
+ change_nperiods = true;
+ }
+
if (get_midi_option() != backend->midi_option()) {
change_midi = true;
}
change_channels = true;
change_latency = true;
change_midi = true;
+ change_nperiods = backend->can_set_period_size() && get_popdown_string_count (nperiods_combo) > 0;
}
} else {
/* determine if we need to stop the backend before changing parameters */
- if (change_driver || change_device || change_channels || change_latency ||
+ if (change_driver || change_device || change_channels || change_nperiods ||
+ (change_latency && !backend->can_change_systemic_latency_when_running ()) ||
(change_rate && !backend->can_change_sample_rate_when_running()) ||
change_midi ||
(change_bufsize && !backend->can_change_buffer_size_when_running())) {
restart_required = false;
}
- if (was_running) {
-
- if (!change_driver && !change_device && !change_channels && !change_latency && !change_midi) {
- /* no changes in any parameters that absolutely require a
- * restart, so check those that might be changeable without a
- * restart
- */
-
- if (change_rate && !backend->can_change_sample_rate_when_running()) {
- /* can't do this while running ... */
- restart_required = true;
- }
-
- if (change_bufsize && !backend->can_change_buffer_size_when_running()) {
- /* can't do this while running ... */
- restart_required = true;
- }
- }
- }
if (was_running) {
if (restart_required) {
- if (ARDOUR_UI::instance()->disconnect_from_engine ()) {
+ if (ARDOUR::AudioEngine::instance()->stop()) {
return -1;
}
}
}
-
if (change_driver && backend->set_driver (get_driver())) {
error << string_compose (_("Cannot set driver to %1"), get_driver()) << endmsg;
return -1;
error << string_compose (_("Cannot set buffer size to %1"), get_buffer_size()) << endmsg;
return -1;
}
+ if (change_nperiods && backend->set_peridod_size (get_nperiods())) {
+ error << string_compose (_("Cannot set periods to %1"), get_nperiods()) << endmsg;
+ return -1;
+ }
if (change_channels || get_input_channels() == 0 || get_output_channels() == 0) {
if (backend->set_input_channels (get_input_channels())) {
} else {
backend->set_midi_device_enabled ((*p)->name, false);
}
+ if (backend->can_change_systemic_latency_when_running ()) {
+ backend->set_systemic_midi_input_latency ((*p)->name, 0);
+ backend->set_systemic_midi_output_latency ((*p)->name, 0);
+ }
continue;
}
backend->set_midi_device_enabled ((*p)->name, (*p)->enabled);
store_state(state);
}
+ states.sort (state_sort_cmp);
+
/* all off */
for (StateList::iterator i = states.begin(); i != states.end(); ++i) {
return samples;
}
+uint32_t
+EngineControl::get_nperiods () const
+{
+ string txt = nperiods_combo.get_active_text ();
+ return atoi (txt.c_str());
+}
+
string
EngineControl::get_midi_option () const
{
/* latency tab */
if (ARDOUR::AudioEngine::instance()->running()) {
- // TODO - mark as 'stopped for latency
- ARDOUR_UI::instance()->disconnect_from_engine ();
+ stop_engine (true);
}
{
}
}
+void
+EngineControl::latency_back_button_clicked ()
+{
+ ARDOUR::AudioEngine::instance()->stop(true);
+ notebook.set_current_page(0);
+}
+
void
EngineControl::use_latency_button_clicked ()
{
/* back to settings page */
notebook.set_current_page (0);
-}
}
-
+}
bool
EngineControl::on_delete_event (GdkEventAny* ev)
set_active_text_if_present (buffer_size_combo, bufsize_as_string (backend->buffer_size()));
sample_rate_combo.set_active_text (rate_as_string (backend->sample_rate()));
+ if (backend->can_set_period_size ()) {
+ set_active_text_if_present (nperiods_combo, nperiods_as_string (backend->period_size()));
+ }
+
connect_disconnect_button.set_label (string_compose (_("Disconnect from %1"), backend->name()));
connect_disconnect_button.show();
EngineControl::connect_disconnect_click()
{
if (ARDOUR::AudioEngine::instance()->running()) {
- ARDOUR_UI::instance()->disconnect_from_engine ();
+ stop_engine ();
} else {
- ARDOUR_UI::instance()->reconnect_to_engine ();
+ start_engine ();
}
}
projects / ardour.git / blobdiff