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Engine-dialog: latency spinbox sensitivity

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This allows to change latency while running using numeric entry
or otherwise makes the spinboxes insensitive.
This commit is contained in:
Robin Gareus
2020-05-09 01:19:03 +02:00
parent fe8df2eeae
commit dffe780d95
2 changed files with 36 additions and 13 deletions
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46
gtk2_ardour/engine_dialog.cc
View File

@@ -371,13 +371,13 @@ EngineControl::connect_changed_signals ()
sigc::mem_fun (*this, &EngineControl::output_device_changed));
input_latency_connection = input_latency.signal_changed ().connect (
sigc::mem_fun (*this, &EngineControl::parameter_changed));
sigc::mem_fun (*this, &EngineControl::latency_changed));
output_latency_connection = output_latency.signal_changed ().connect (
sigc::mem_fun (*this, &EngineControl::parameter_changed));
sigc::mem_fun (*this, &EngineControl::latency_changed));
input_channels_connection = input_channels.signal_changed ().connect (
sigc::mem_fun (*this, &EngineControl::parameter_changed));
sigc::mem_fun (*this, &EngineControl::channels_changed));
output_channels_connection = output_channels.signal_changed ().connect (
sigc::mem_fun (*this, &EngineControl::parameter_changed));
sigc::mem_fun (*this, &EngineControl::channels_changed));
}
void
@@ -887,6 +887,14 @@ EngineControl::update_sensitivity ()
valid = false;
}
if (!engine_running || backend->can_change_systemic_latency_when_running ()) {
input_latency.set_sensitive (true);
output_latency.set_sensitive (true);
} else {
input_latency.set_sensitive (false);
output_latency.set_sensitive (false);
}
if (get_popdown_string_count (sample_rate_combo) > 0) {
bool allow_to_set_rate = false;
if (!engine_running) {
@@ -1801,7 +1809,22 @@ EngineControl::midi_option_changed ()
}
void
EngineControl::parameter_changed ()
EngineControl::latency_changed ()
{
boost::shared_ptr<ARDOUR::AudioBackend> backend = ARDOUR::AudioEngine::instance()->current_backend();
if (!backend || !_have_control || !ARDOUR::AudioEngine::instance()->running ()) {
return;
}
if (!backend->can_change_systemic_latency_when_running ()) {
return;
}
backend->set_systemic_input_latency (get_input_latency ());
backend->set_systemic_output_latency (get_output_latency ());
post_push ();
}
void
EngineControl::channels_changed ()
{
}
@@ -3200,20 +3223,19 @@ EngineControl::use_latency_button_clicked ()
double one_way = rint ((mtdm->del() - ARDOUR::AudioEngine::instance()->latency_signal_delay()) / 2.0);
one_way = std::max (0., one_way);
input_latency_adjustment.set_value (one_way);
output_latency_adjustment.set_value (one_way);
State state = get_saved_state_for_currently_displayed_backend_and_device ();
if (state) {
state->lm_input = lm_input_channel_combo.get_active ()->get_value (lm_input_channel_cols.port_name);
state->lm_output = lm_output_channel_combo.get_active ()->get_value (lm_output_channel_cols.port_name);
post_push ();
post_push (); /* save */
}
if (backend->can_change_systemic_latency_when_running ()) {
backend->set_systemic_input_latency (one_way);
backend->set_systemic_output_latency (one_way);
/* these trigger EngineControl::latency_changed, and a post_push()
* when the latency can be changed while running */
input_latency_adjustment.set_value (one_way);
output_latency_adjustment.set_value (one_way);
if (backend->can_change_systemic_latency_when_running ()) {
/* engine is running, continue to load session.
* RESPONSE_OK is a NO-OP when the dialog is displayed as Window
* from a running instance.

3
gtk2_ardour/engine_dialog.h
View File

@@ -153,7 +153,8 @@ private:
void sample_rate_changed ();
void buffer_size_changed ();
void nperiods_changed ();
void parameter_changed ();
void channels_changed ();
void latency_changed ();
void midi_option_changed ();
void setup_midi_tab_for_backend ();