+ /* the backend combo is the one thing that is ALWAYS visible */
+
+ vector<const ARDOUR::AudioBackendInfo*> backends = ARDOUR::AudioEngine::instance()->available_backends();
+
+ if (backends.empty()) {
+ MessageDialog msg (string_compose (_("No audio/MIDI backends detected. %1 cannot run\n\n(This is a build/packaging/system error. It should never happen.)"), PROGRAM_NAME));
+ msg.run ();
+ throw failed_constructor ();
+ }
+
+ for (vector<const ARDOUR::AudioBackendInfo*>::const_iterator b = backends.begin(); b != backends.end(); ++b) {
+ strings.push_back ((*b)->name);
+ }
+
+ set_popdown_strings (backend_combo, strings);
+ backend_combo.set_active_text (strings.front());
+ backend_combo.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::backend_changed));
+
+ /* setup basic packing characteristics for the table used on the main
+ * tab of the notebook
+ */
+
+ basic_packer.set_spacings (6);
+ basic_packer.set_border_width (12);
+ basic_packer.set_homogeneous (false);
+
+ /* pack it in */
+
+ basic_hbox.pack_start (basic_packer, false, false);
+
+ /* latency measurement tab */
+
+ lm_title.set_markup (string_compose ("<span size=\"large\" weight=\"bold\">%1</span>", _("Latency Measurement Tool")));
+
+ row = 0;
+ lm_table.set_row_spacings (12);
+ lm_table.set_col_spacings (6);
+ lm_table.set_homogeneous (false);
+
+ lm_table.attach (lm_title, 0, 3, row, row+1, xopt, (AttachOptions) 0);
+ row++;
+
+ lm_preamble.set_width_chars (60);
+ lm_preamble.set_line_wrap (true);
+ lm_preamble.set_markup (_("<span weight=\"bold\">Turn down the volume on your audio equipment to a very low level.</span>"));
+
+ lm_table.attach (lm_preamble, 0, 3, row, row+1, AttachOptions(FILL|EXPAND), (AttachOptions) 0);
+ row++;
+
+ Gtk::Label* preamble;
+ preamble = manage (new Label);
+ preamble->set_width_chars (60);
+ preamble->set_line_wrap (true);
+ preamble->set_markup (_("Select two channels below and connect them using a cable."));
+
+ lm_table.attach (*preamble, 0, 3, row, row+1, AttachOptions(FILL|EXPAND), (AttachOptions) 0);
+ row++;
+
+ label = manage (new Label (_("Output channel")));
+ lm_table.attach (*label, 0, 1, row, row+1, xopt, (AttachOptions) 0);
+
+ Gtk::Alignment* misc_align = manage (new Alignment (0.0, 0.5));
+ misc_align->add (lm_output_channel_combo);
+ lm_table.attach (*misc_align, 1, 3, row, row+1, xopt, (AttachOptions) 0);
+ ++row;
+
+ label = manage (new Label (_("Input channel")));
+ lm_table.attach (*label, 0, 1, row, row+1, xopt, (AttachOptions) 0);
+
+ misc_align = manage (new Alignment (0.0, 0.5));
+ misc_align->add (lm_input_channel_combo);
+ lm_table.attach (*misc_align, 1, 3, row, row+1, FILL, (AttachOptions) 0);
+ ++row;
+
+ xopt = AttachOptions(0);
+
+ lm_measure_label.set_padding (10, 10);
+ 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_use_button.set_sensitive (false);
+
+ /* Increase the default spacing around the labels of these three
+ * buttons
+ */
+
+ Gtk::Misc* l;
+
+ if ((l = dynamic_cast<Gtk::Misc*>(lm_use_button.get_child())) != 0) {
+ l->set_padding (10, 10);
+ }
+
+ if ((l = dynamic_cast<Gtk::Misc*>(lm_back_button.get_child())) != 0) {
+ l->set_padding (10, 10);
+ }
+
+ preamble = manage (new Label);
+ preamble->set_width_chars (60);
+ preamble->set_line_wrap (true);
+ preamble->set_markup (_("Once the channels are connected, click the \"Measure\" button."));
+ lm_table.attach (*preamble, 0, 3, row, row+1, AttachOptions(FILL|EXPAND), (AttachOptions) 0);
+ row++;
+
+ preamble = manage (new Label);
+ preamble->set_width_chars (60);
+ preamble->set_line_wrap (true);
+ preamble->set_markup (_("When satisfied with the results, click the \"Use results\" button."));
+ lm_table.attach (*preamble, 0, 3, row, row+1, AttachOptions(FILL|EXPAND), (AttachOptions) 0);
+
+ ++row; // skip a row in the table
+ ++row; // skip a row in the table
+
+ lm_table.attach (lm_results, 0, 3, row, row+1, AttachOptions(FILL|EXPAND), (AttachOptions) 0);
+
+ ++row; // skip a row in the table
+ ++row; // skip a row in the table
+
+ lm_table.attach (lm_measure_button, 0, 1, row, row+1, AttachOptions(FILL|EXPAND), (AttachOptions) 0);
+ lm_table.attach (lm_use_button, 1, 2, row, row+1, AttachOptions(FILL|EXPAND), (AttachOptions) 0);
+ lm_table.attach (lm_back_button, 2, 3, row, row+1, AttachOptions(FILL|EXPAND), (AttachOptions) 0);
+
+ lm_results.set_markup (string_compose (results_markup, _("No measurement results yet")));
+
+ lm_vbox.set_border_width (12);
+ lm_vbox.pack_start (lm_table, false, false);
+
+ midi_back_button.signal_clicked().connect (sigc::bind (sigc::mem_fun (notebook, &Gtk::Notebook::set_current_page), 0));
+
+ /* pack it all up */
+
+ notebook.pages().push_back (TabElem (basic_vbox, _("Audio")));
+ notebook.pages().push_back (TabElem (lm_vbox, _("Latency")));
+ notebook.pages().push_back (TabElem (midi_vbox, _("MIDI")));
+ notebook.set_border_width (12);
+
+ notebook.set_show_tabs (false);
+ notebook.show_all ();
+
+ notebook.set_name ("SettingsNotebook");
+
+ /* packup the notebook */
+
+ get_vbox()->set_border_width (12);
+ get_vbox()->pack_start (notebook);
+
+ get_action_area()->pack_start (engine_status);
+ engine_status.show();
+
+ /* need a special function to print "all available channels" when the
+ * channel counts hit zero.
+ */
+
+ input_channels.signal_output().connect (sigc::bind (sigc::ptr_fun (&EngineControl::print_channel_count), &input_channels));
+ output_channels.signal_output().connect (sigc::bind (sigc::ptr_fun (&EngineControl::print_channel_count), &output_channels));
+
+ midi_devices_button.signal_clicked.connect (mem_fun (*this, &EngineControl::configure_midi_devices));
+ midi_devices_button.set_sensitive (false);
+ midi_devices_button.set_name ("generic button");
+ midi_devices_button.set_can_focus(true);
+
+ control_app_button.signal_clicked().connect (mem_fun (*this, &EngineControl::control_app_button_clicked));
+ manage_control_app_sensitivity ();
+
+ cancel_button = add_button (Gtk::Stock::CLOSE, Gtk::RESPONSE_CANCEL);
+ apply_button = add_button (Gtk::Stock::APPLY, Gtk::RESPONSE_APPLY);
+ ok_button = add_button (Gtk::Stock::OK, Gtk::RESPONSE_OK);
+
+ /* Pick up any existing audio setup configuration, if appropriate */
+
+ XMLNode* audio_setup = ARDOUR::Config->extra_xml ("AudioMIDISetup");
+
+ ARDOUR::AudioEngine::instance()->Running.connect (running_connection, MISSING_INVALIDATOR, boost::bind (&EngineControl::engine_running, this), gui_context());
+ ARDOUR::AudioEngine::instance()->Stopped.connect (stopped_connection, MISSING_INVALIDATOR, boost::bind (&EngineControl::engine_stopped, this), gui_context());
+ ARDOUR::AudioEngine::instance()->Halted.connect (stopped_connection, MISSING_INVALIDATOR, boost::bind (&EngineControl::engine_stopped, this), gui_context());
+
+ if (audio_setup)
+ {
+ set_state (*audio_setup);
+ }
+ {
+ /* ignore: don't save state */
+ PBD::Unwinder<uint32_t> protect_ignore_changes (ignore_changes, ignore_changes + 1);
+ backend_changed ();
+ }
+
+ /* Connect to signals */
+
+ driver_combo.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::driver_changed));
+ sample_rate_combo.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::sample_rate_changed));
+ buffer_size_combo.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::buffer_size_changed));
+ device_combo.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::device_changed));
+ midi_option_combo.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::midi_option_changed));
+
+ input_latency.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::parameter_changed));
+ output_latency.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::parameter_changed));
+ input_channels.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::parameter_changed));
+ output_channels.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::parameter_changed));
+
+ notebook.signal_switch_page().connect (sigc::mem_fun (*this, &EngineControl::on_switch_page));
+
+ connect_disconnect_button.signal_clicked().connect (sigc::mem_fun (*this, &EngineControl::connect_disconnect_click));
+ connect_disconnect_button.set_no_show_all();
+
+}
+
+void
+EngineControl::on_show ()
+{
+ ArdourDialog::on_show ();
+ device_changed ();
+ ok_button->grab_focus();
+}
+
+void
+EngineControl::on_response (int response_id)
+{
+ ArdourDialog::on_response (response_id);
+
+ switch (response_id) {
+ case RESPONSE_APPLY:
+ push_state_to_backend (true);
+ break;
+ case RESPONSE_OK:
+ push_state_to_backend (true);
+ hide ();
+ break;
+ case RESPONSE_DELETE_EVENT:
+ {
+ GdkEventButton ev;
+ ev.type = GDK_BUTTON_PRESS;
+ ev.button = 1;
+ on_delete_event ((GdkEventAny*) &ev);
+ break;
+ }
+ default:
+ hide ();
+ }
+}
+
+void
+EngineControl::build_notebook ()
+{
+ Label* label;
+ AttachOptions xopt = AttachOptions (FILL|EXPAND);
+
+ /* clear the table */
+
+ Gtkmm2ext::container_clear (basic_vbox);
+ Gtkmm2ext::container_clear (basic_packer);
+
+ if (control_app_button.get_parent()) {
+ control_app_button.get_parent()->remove (control_app_button);
+ }
+
+ label = manage (left_aligned_label (_("Audio System:")));
+ basic_packer.attach (*label, 0, 1, 0, 1, xopt, (AttachOptions) 0);
+ basic_packer.attach (backend_combo, 1, 2, 0, 1, xopt, (AttachOptions) 0);
+
+ lm_button_audio.signal_clicked.connect (sigc::mem_fun (*this, &EngineControl::calibrate_audio_latency));
+ lm_button_audio.set_name ("generic button");
+ lm_button_audio.set_can_focus(true);
+
+ if (_have_control) {
+ build_full_control_notebook ();
+ } else {
+ build_no_control_notebook ();
+ }
+
+ basic_vbox.pack_start (basic_hbox, false, false);
+
+ {
+ PBD::Unwinder<uint32_t> protect_ignore_changes (ignore_changes, ignore_changes + 1);
+ basic_vbox.show_all ();
+ }
+}
+
+void
+EngineControl::build_full_control_notebook ()
+{
+ boost::shared_ptr<ARDOUR::AudioBackend> backend = ARDOUR::AudioEngine::instance()->current_backend();
+ assert (backend);
+
+ using namespace Notebook_Helpers;
+ Label* label;
+ vector<string> strings;
+ AttachOptions xopt = AttachOptions (FILL|EXPAND);
+ int row = 1; // row zero == backend combo
+
+ /* start packing it up */
+
+ if (backend->requires_driver_selection()) {
+ label = manage (left_aligned_label (_("Driver:")));
+ basic_packer.attach (*label, 0, 1, row, row + 1, xopt, (AttachOptions) 0);
+ basic_packer.attach (driver_combo, 1, 2, row, row + 1, xopt, (AttachOptions) 0);
+ row++;
+ }
+
+ label = manage (left_aligned_label (_("Device:")));
+ basic_packer.attach (*label, 0, 1, row, row + 1, xopt, (AttachOptions) 0);
+ basic_packer.attach (device_combo, 1, 2, row, row + 1, xopt, (AttachOptions) 0);
+ row++;
+
+ label = manage (left_aligned_label (_("Sample rate:")));
+ basic_packer.attach (*label, 0, 1, row, row + 1, xopt, (AttachOptions) 0);
+ basic_packer.attach (sample_rate_combo, 1, 2, row, row + 1, xopt, (AttachOptions) 0);
+ row++;
+
+
+ label = manage (left_aligned_label (_("Buffer size:")));
+ basic_packer.attach (*label, 0, 1, row, row + 1, xopt, (AttachOptions) 0);
+ basic_packer.attach (buffer_size_combo, 1, 2, row, row + 1, xopt, (AttachOptions) 0);
+ 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 */
+
+ basic_packer.attach (control_app_button, 3, 4, row-1, row+1, xopt, xopt);
+ row++;
+
+ input_channels.set_name ("InputChannels");
+ input_channels.set_flags (Gtk::CAN_FOCUS);
+ input_channels.set_digits (0);
+ input_channels.set_wrap (false);
+ output_channels.set_editable (true);
+
+ if (!ARDOUR::Profile->get_mixbus()) {
+ label = manage (left_aligned_label (_("Input Channels:")));
+ basic_packer.attach (*label, 0, 1, row, row+1, xopt, (AttachOptions) 0);
+ basic_packer.attach (input_channels, 1, 2, row, row+1, xopt, (AttachOptions) 0);
+ ++row;
+ }
+
+ output_channels.set_name ("OutputChannels");
+ output_channels.set_flags (Gtk::CAN_FOCUS);
+ output_channels.set_digits (0);
+ output_channels.set_wrap (false);
+ output_channels.set_editable (true);
+
+ if (!ARDOUR::Profile->get_mixbus()) {
+ label = manage (left_aligned_label (_("Output Channels:")));
+ basic_packer.attach (*label, 0, 1, row, row+1, xopt, (AttachOptions) 0);
+ basic_packer.attach (output_channels, 1, 2, row, row+1, xopt, (AttachOptions) 0);
+ ++row;
+ }
+
+ input_latency.set_name ("InputLatency");
+ input_latency.set_flags (Gtk::CAN_FOCUS);
+ input_latency.set_digits (0);
+ input_latency.set_wrap (false);
+ input_latency.set_editable (true);
+
+ label = manage (left_aligned_label (_("Hardware input latency:")));
+ basic_packer.attach (*label, 0, 1, row, row+1, xopt, (AttachOptions) 0);
+ basic_packer.attach (input_latency, 1, 2, row, row+1, xopt, (AttachOptions) 0);
+ label = manage (left_aligned_label (_("samples")));
+ basic_packer.attach (*label, 2, 3, row, row+1, SHRINK, (AttachOptions) 0);
+ ++row;
+
+ output_latency.set_name ("OutputLatency");
+ output_latency.set_flags (Gtk::CAN_FOCUS);
+ output_latency.set_digits (0);
+ output_latency.set_wrap (false);
+ output_latency.set_editable (true);
+
+ label = manage (left_aligned_label (_("Hardware output latency:")));
+ basic_packer.attach (*label, 0, 1, row, row+1, xopt, (AttachOptions) 0);
+ basic_packer.attach (output_latency, 1, 2, row, row+1, xopt, (AttachOptions) 0);
+ label = manage (left_aligned_label (_("samples")));
+ basic_packer.attach (*label, 2, 3, row, row+1, SHRINK, (AttachOptions) 0);
+
+ /* button spans 2 rows */
+
+ basic_packer.attach (lm_button_audio, 3, 4, row-1, row+1, xopt, xopt);
+ ++row;
+
+ label = manage (left_aligned_label (_("MIDI System")));
+ basic_packer.attach (*label, 0, 1, row, row + 1, xopt, (AttachOptions) 0);
+ basic_packer.attach (midi_option_combo, 1, 2, row, row + 1, SHRINK, (AttachOptions) 0);
+ basic_packer.attach (midi_devices_button, 3, 4, row, row+1, xopt, xopt);
+ row++;
+}
+
+void
+EngineControl::build_no_control_notebook ()
+{
+ boost::shared_ptr<ARDOUR::AudioBackend> backend = ARDOUR::AudioEngine::instance()->current_backend();
+ assert (backend);
+
+ using namespace Notebook_Helpers;
+ Label* label;
+ vector<string> strings;
+ AttachOptions xopt = AttachOptions (FILL|EXPAND);
+ int row = 1; // row zero == backend combo
+ const string msg = string_compose (_("The %1 audio backend was configured and started externally.\nThis limits your control over it."), backend->name());
+
+ label = manage (new Label);
+ label->set_markup (string_compose ("<span weight=\"bold\" foreground=\"red\">%1</span>", msg));
+ basic_packer.attach (*label, 0, 2, row, row + 1, xopt, (AttachOptions) 0);
+ row++;
+
+ if (backend->can_change_sample_rate_when_running()) {
+ label = manage (left_aligned_label (_("Sample rate:")));
+ basic_packer.attach (*label, 0, 1, row, row + 1, xopt, (AttachOptions) 0);
+ basic_packer.attach (sample_rate_combo, 1, 2, row, row + 1, xopt, (AttachOptions) 0);
+ row++;
+ }
+
+ if (backend->can_change_buffer_size_when_running()) {
+ label = manage (left_aligned_label (_("Buffer size:")));
+ basic_packer.attach (*label, 0, 1, row, row + 1, xopt, (AttachOptions) 0);
+ basic_packer.attach (buffer_size_combo, 1, 2, row, row + 1, xopt, (AttachOptions) 0);
+ buffer_size_duration_label.set_alignment (0.0); /* left-align */
+ basic_packer.attach (buffer_size_duration_label, 2, 3, row, row+1, xopt, (AttachOptions) 0);
+ row++;
+ }
+
+ basic_packer.attach (connect_disconnect_button, 0, 2, row, row+1, FILL, AttachOptions (0));
+ row++;
+}
+
+EngineControl::~EngineControl ()
+{
+ ignore_changes = true;
+}
+
+void
+EngineControl::disable_latency_tab ()
+{
+ vector<string> empty;
+ set_popdown_strings (lm_output_channel_combo, empty);
+ set_popdown_strings (lm_input_channel_combo, empty);
+ lm_measure_button.set_sensitive (false);
+ lm_use_button.set_sensitive (false);
+}
+
+void
+EngineControl::enable_latency_tab ()
+{
+ vector<string> outputs;
+ vector<string> inputs;
+
+ ARDOUR::DataType const type = _measure_midi ? ARDOUR::DataType::MIDI : ARDOUR::DataType::AUDIO;
+ ARDOUR::AudioEngine::instance()->get_physical_outputs (type, outputs);
+ ARDOUR::AudioEngine::instance()->get_physical_inputs (type, inputs);
+
+ if (!ARDOUR::AudioEngine::instance()->running()) {
+ MessageDialog msg (_("Failed to start or connect to audio-engine.\n\nLatency calibration requires a working audio interface."));
+ notebook.set_current_page (0);
+ msg.run ();
+ return;
+ }
+ else if (inputs.empty() || outputs.empty()) {
+ MessageDialog msg (_("Your selected audio configuration is playback- or capture-only.\n\nLatency calibration requires playback and capture"));
+ notebook.set_current_page (0);
+ msg.run ();
+ return;
+ }
+
+ lm_back_button_signal.disconnect();
+ if (_measure_midi) {
+ 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_preamble.show ();
+ }
+
+ set_popdown_strings (lm_output_channel_combo, outputs);
+ lm_output_channel_combo.set_active_text (outputs.front());
+ lm_output_channel_combo.set_sensitive (true);
+
+ set_popdown_strings (lm_input_channel_combo, inputs);
+ lm_input_channel_combo.set_active_text (inputs.front());
+ lm_input_channel_combo.set_sensitive (true);
+
+ lm_measure_button.set_sensitive (true);
+}
+
+void
+EngineControl::setup_midi_tab_for_backend ()
+{
+ string backend = backend_combo.get_active_text ();
+
+ Gtkmm2ext::container_clear (midi_vbox);
+
+ midi_vbox.set_border_width (12);
+ midi_device_table.set_border_width (12);
+
+ if (backend == "JACK") {
+ setup_midi_tab_for_jack ();
+ }
+
+ midi_vbox.pack_start (midi_device_table, true, true);
+ midi_vbox.pack_start (midi_back_button, false, false);
+ midi_vbox.show_all ();
+}
+
+void
+EngineControl::setup_midi_tab_for_jack ()
+{
+}
+
+void
+EngineControl::midi_latency_adjustment_changed (Gtk::Adjustment *a, MidiDeviceSettings device, bool for_input) {
+ if (for_input) {
+ device->input_latency = a->get_value();
+ } else {
+ device->output_latency = a->get_value();
+ }
+}
+
+void
+EngineControl::midi_device_enabled_toggled (ArdourButton *b, MidiDeviceSettings device) {
+ b->set_active (!b->get_active());
+ device->enabled = b->get_active();
+ refresh_midi_display(device->name);
+}
+
+void
+EngineControl::refresh_midi_display (std::string focus)
+{
+ boost::shared_ptr<ARDOUR::AudioBackend> backend = ARDOUR::AudioEngine::instance()->current_backend();
+ assert (backend);
+
+ int row = 0;
+ AttachOptions xopt = AttachOptions (FILL|EXPAND);
+ Gtk::Label* l;
+
+ Gtkmm2ext::container_clear (midi_device_table);
+
+ midi_device_table.set_spacings (6);
+
+ l = manage (new Label);
+ l->set_markup (string_compose ("<span size=\"large\" weight=\"bold\">%1</span>", _("MIDI Devices")));
+ midi_device_table.attach (*l, 0, 4, row, row + 1, xopt, AttachOptions (0));
+ l->set_alignment (0.5, 0.5);
+ row++;
+ l->show ();
+
+ l = manage (new Label (_("Device"))); l->show (); l->set_alignment (0.5, 0.5);
+ midi_device_table.attach (*l, 0, 1, row, row + 2, xopt, AttachOptions (0));
+ l = manage (new Label (_("Hardware Latencies"))); l->show (); l->set_alignment (0.5, 0.5);
+ midi_device_table.attach (*l, 1, 3, row, row + 1, xopt, AttachOptions (0));
+ row++;
+ l = manage (new Label (_("Input"))); l->show (); l->set_alignment (0.5, 0.5);
+ midi_device_table.attach (*l, 1, 2, row, row + 1, xopt, AttachOptions (0));
+ l = manage (new Label (_("Output"))); l->show (); l->set_alignment (0.5, 0.5);
+ midi_device_table.attach (*l, 2, 3, row, row + 1, xopt, AttachOptions (0));
+ row++;
+
+ for (vector<MidiDeviceSettings>::const_iterator p = _midi_devices.begin(); p != _midi_devices.end(); ++p) {
+ ArdourButton *m;
+ Gtk::Button* b;
+ Gtk::Adjustment *a;
+ Gtk::SpinButton *s;
+ bool enabled = (*p)->enabled;
+
+ m = manage (new ArdourButton ((*p)->name, ArdourButton::led_default_elements));
+ m->set_name ("midi device");
+ m->set_can_focus (Gtk::CAN_FOCUS);
+ m->add_events (Gdk::BUTTON_RELEASE_MASK);
+ m->set_active (enabled);
+ m->signal_clicked.connect (sigc::bind (sigc::mem_fun (*this, &EngineControl::midi_device_enabled_toggled), m, *p));
+ midi_device_table.attach (*m, 0, 1, row, row + 1, xopt, AttachOptions (0)); m->show ();
+ if ((*p)->name == focus) {
+ m->grab_focus();
+ }
+
+ a = manage (new Gtk::Adjustment (0, 0, 99999, 1));
+ s = manage (new Gtk::SpinButton (*a));
+ a->set_value ((*p)->input_latency);
+ s->signal_value_changed().connect (sigc::bind (sigc::mem_fun (*this, &EngineControl::midi_latency_adjustment_changed), a, *p, true));
+ s->set_sensitive (_can_set_midi_latencies && enabled);
+ midi_device_table.attach (*s, 1, 2, row, row + 1, xopt, AttachOptions (0)); s->show ();
+
+ a = manage (new Gtk::Adjustment (0, 0, 99999, 1));
+ s = manage (new Gtk::SpinButton (*a));
+ a->set_value ((*p)->output_latency);
+ s->signal_value_changed().connect (sigc::bind (sigc::mem_fun (*this, &EngineControl::midi_latency_adjustment_changed), a, *p, false));
+ s->set_sensitive (_can_set_midi_latencies && enabled);
+ midi_device_table.attach (*s, 2, 3, row, row + 1, xopt, AttachOptions (0)); s->show ();
+
+ b = manage (new Button (_("Calibrate")));
+ b->signal_clicked().connect (sigc::bind (sigc::mem_fun (*this, &EngineControl::calibrate_midi_latency), *p));
+ b->set_sensitive (_can_set_midi_latencies && enabled);
+ midi_device_table.attach (*b, 3, 4, row, row + 1, xopt, AttachOptions (0)); b->show ();
+
+ row++;
+ }
+}
+
+void
+EngineControl::update_sensitivity ()
+{
+}
+
+void
+EngineControl::backend_changed ()
+{
+ string backend_name = backend_combo.get_active_text();
+ boost::shared_ptr<ARDOUR::AudioBackend> backend;
+
+ if (!(backend = ARDOUR::AudioEngine::instance()->set_backend (backend_name, "ardour", ""))) {
+ /* eh? setting the backend failed... how ? */
+ return;
+ }
+
+ _have_control = ARDOUR::AudioEngine::instance()->setup_required ();
+
+ build_notebook ();
+ setup_midi_tab_for_backend ();
+ _midi_devices.clear();
+
+ if (backend->requires_driver_selection()) {
+ vector<string> drivers = backend->enumerate_drivers();
+ driver_combo.set_sensitive (true);
+
+ if (!drivers.empty()) {
+ {
+ string current_driver;
+ current_driver = backend->driver_name ();
+
+ // driver might not have been set yet
+ if (current_driver == "") {
+ current_driver = driver_combo.get_active_text ();
+ if (current_driver == "")
+ // driver has never been set, make sure it's not blank
+ current_driver = drivers.front ();
+ }
+
+ PBD::Unwinder<uint32_t> protect_ignore_changes (ignore_changes, ignore_changes + 1);
+ set_popdown_strings (driver_combo, drivers);
+ driver_combo.set_active_text (current_driver);
+ }
+
+ driver_changed ();
+ }
+
+ } else {
+ driver_combo.set_sensitive (false);
+ /* this will change the device text which will cause a call to
+ * device changed which will set up parameters
+ */
+ list_devices ();
+ }
+
+ vector<string> midi_options = backend->enumerate_midi_options();
+
+ if (midi_options.size() == 1) {
+ /* only contains the "none" option */
+ midi_option_combo.set_sensitive (false);
+ } else {
+ if (_have_control) {
+ set_popdown_strings (midi_option_combo, midi_options);
+ midi_option_combo.set_active_text (midi_options.front());
+ midi_option_combo.set_sensitive (true);
+ } else {
+ midi_option_combo.set_sensitive (false);
+ }
+ }
+
+ connect_disconnect_button.hide();
+
+ midi_option_changed();
+
+ started_at_least_once = false;
+
+ if (!ignore_changes) {
+ maybe_display_saved_state ();
+ }
+}
+
+bool
+EngineControl::print_channel_count (Gtk::SpinButton* sb)
+{
+ if (ARDOUR::Profile->get_mixbus()) {
+ cout << "Mixbus crash trap. sb->get_value(): " << sb->get_value();
+ return true;
+ }
+
+ uint32_t cnt = (uint32_t) sb->get_value();
+ if (cnt == 0) {
+ sb->set_text (_("all available channels"));
+ } else {
+ char buf[32];
+ snprintf (buf, sizeof (buf), "%d", cnt);
+ sb->set_text (buf);
+ }
+ return true;
+}
+
+void
+EngineControl::list_devices ()
+{
+ boost::shared_ptr<ARDOUR::AudioBackend> backend = ARDOUR::AudioEngine::instance()->current_backend();
+ assert (backend);
+
+ /* now fill out devices, mark sample rates, buffer sizes insensitive */
+
+ vector<ARDOUR::AudioBackend::DeviceStatus> all_devices = backend->enumerate_devices ();
+
+ /* NOTE: Ardour currently does not display the "available" field of the
+ * returned devices.
+ *
+ * Doing so would require a different GUI widget than the combo
+ * box/popdown that we currently use, since it has no way to list
+ * items that are not selectable. Something more like a popup menu,
+ * which could have unselectable items, would be appropriate.
+ */
+
+ vector<string> available_devices;
+
+ for (vector<ARDOUR::AudioBackend::DeviceStatus>::const_iterator i = all_devices.begin(); i != all_devices.end(); ++i) {
+ available_devices.push_back (i->name);
+ }
+
+ if (!available_devices.empty()) {
+
+ update_sensitivity ();
+
+ {
+ string current_device;
+ current_device = backend->device_name ();
+ if (current_device == "") {
+ // device might not have been set yet
+ current_device = device_combo.get_active_text ();
+ if (current_device == "")
+ // device has never been set, make sure it's not blank
+ current_device = available_devices.front ();
+ }
+
+ PBD::Unwinder<uint32_t> protect_ignore_changes (ignore_changes, ignore_changes + 1);
+ set_popdown_strings (device_combo, available_devices);
+
+ device_combo.set_active_text (current_device);
+ }
+
+ device_changed ();
+
+ input_latency.set_sensitive (true);
+ output_latency.set_sensitive (true);
+ input_channels.set_sensitive (true);
+ output_channels.set_sensitive (true);
+
+ ok_button->set_sensitive (true);
+ apply_button->set_sensitive (true);
+
+ } else {
+ device_combo.clear();
+ sample_rate_combo.set_sensitive (false);
+ buffer_size_combo.set_sensitive (false);
+ input_latency.set_sensitive (false);
+ output_latency.set_sensitive (false);
+ input_channels.set_sensitive (false);
+ output_channels.set_sensitive (false);
+ if (_have_control) {
+ ok_button->set_sensitive (false);
+ apply_button->set_sensitive (false);
+ } else {
+ ok_button->set_sensitive (true);
+ apply_button->set_sensitive (true);
+ if (backend->can_change_sample_rate_when_running() && sample_rate_combo.get_children().size() > 0) {
+ sample_rate_combo.set_sensitive (true);
+ }
+ if (backend->can_change_buffer_size_when_running() && buffer_size_combo.get_children().size() > 0) {
+ buffer_size_combo.set_sensitive (true);
+ }
+
+ }
+ }
+}
+
+void
+EngineControl::driver_changed ()
+{
+ boost::shared_ptr<ARDOUR::AudioBackend> backend = ARDOUR::AudioEngine::instance()->current_backend();
+ assert (backend);
+
+ backend->set_driver (driver_combo.get_active_text());
+ list_devices ();
+
+ if (!ignore_changes) {
+ maybe_display_saved_state ();
+ }
+}
+
+void
+EngineControl::device_changed ()
+{
+
+ boost::shared_ptr<ARDOUR::AudioBackend> backend = ARDOUR::AudioEngine::instance()->current_backend();
+ assert (backend);
+ string device_name = device_combo.get_active_text ();
+ vector<string> s;
+
+ //the device name must be set FIRST so ASIO can populate buffersizes and the control panel button
+ backend->set_device_name(device_name);
+
+ {
+ PBD::Unwinder<uint32_t> protect_ignore_changes (ignore_changes, ignore_changes + 1);
+
+ /* don't allow programmatic change to combos to cause a
+ recursive call to this method.
+ */
+
+ /* sample rates */
+
+ string desired;
+
+ vector<float> sr;
+
+ if (_have_control) {
+ sr = backend->available_sample_rates (device_name);
+ } else {
+
+ sr.push_back (8000.0f);
+ sr.push_back (16000.0f);
+ sr.push_back (32000.0f);
+ sr.push_back (44100.0f);
+ sr.push_back (48000.0f);
+ sr.push_back (88200.0f);
+ sr.push_back (96000.0f);
+ sr.push_back (192000.0f);
+ sr.push_back (384000.0f);
+ }
+
+ for (vector<float>::const_iterator x = sr.begin(); x != sr.end(); ++x) {
+ s.push_back (rate_as_string (*x));
+ if (*x == _desired_sample_rate) {
+ desired = s.back();
+ }
+ }
+
+ if (!s.empty()) {
+ sample_rate_combo.set_sensitive (true);
+ set_popdown_strings (sample_rate_combo, s);
+
+ if (desired.empty()) {
+ sample_rate_combo.set_active_text (rate_as_string (backend->default_sample_rate()));
+ } else {
+ sample_rate_combo.set_active_text (desired);
+ }
+
+ } else {
+ sample_rate_combo.set_sensitive (false);
+ }
+
+ /* buffer sizes */
+
+ vector<uint32_t> bs;
+
+ if (_have_control) {
+ bs = backend->available_buffer_sizes (device_name);
+ } else if (backend->can_change_buffer_size_when_running()) {
+ bs.push_back (8);
+ bs.push_back (16);
+ bs.push_back (32);
+ bs.push_back (64);
+ bs.push_back (128);
+ bs.push_back (256);
+ bs.push_back (512);
+ bs.push_back (1024);
+ bs.push_back (2048);
+ bs.push_back (4096);
+ bs.push_back (8192);
+ }
+ s.clear ();
+ for (vector<uint32_t>::const_iterator x = bs.begin(); x != bs.end(); ++x) {
+ s.push_back (bufsize_as_string (*x));
+ }
+
+ if (!s.empty()) {
+ buffer_size_combo.set_sensitive (true);
+ set_popdown_strings (buffer_size_combo, s);
+
+ uint32_t period = backend->buffer_size();
+ if (0 == period) {
+ period = backend->default_buffer_size(device_name);
+ }
+ buffer_size_combo.set_active_text (bufsize_as_string (period));
+ show_buffer_duration ();
+ } else {
+ buffer_size_combo.set_sensitive (false);
+ }
+
+ /* XXX theoretically need to set min + max channel counts here
+ */
+
+ manage_control_app_sensitivity ();
+ }
+
+ /* pick up any saved state for this device */
+
+ if (!ignore_changes) {
+ maybe_display_saved_state ();
+ }
+}
+
+string
+EngineControl::bufsize_as_string (uint32_t sz)
+{
+ /* Translators: "samples" is always plural here, so no
+ need for plural+singular forms.
+ */
+ char buf[32];
+ snprintf (buf, sizeof (buf), _("%u samples"), sz);
+ return buf;
+}
+
+void
+EngineControl::sample_rate_changed ()
+{
+ /* reset the strings for buffer size to show the correct msec value
+ (reflecting the new sample rate).
+ */
+
+ show_buffer_duration ();
+ if (!ignore_changes) {
+ save_state ();
+ }
+
+}
+
+void
+EngineControl::buffer_size_changed ()
+{
+ show_buffer_duration ();
+ if (!ignore_changes) {
+ save_state ();
+ }
+}
+
+void
+EngineControl::show_buffer_duration ()
+{
+
+ /* buffer sizes - convert from just samples to samples + msecs for
+ * the displayed string
+ */
+
+ string bs_text = buffer_size_combo.get_active_text ();
+ 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.