+ void show_buffer_duration ();
+
+ void configure_midi_devices ();
+
+ struct MidiDeviceSetting {
+ std::string name;
+ bool enabled;
+ uint32_t input_latency;
+ uint32_t output_latency;
+
+ MidiDeviceSetting (std::string n, bool en = true, uint32_t inl = 0, uint32_t oul = 0)
+ : name (n)
+ , enabled (en)
+ , input_latency (inl)
+ , output_latency (oul)
+ {}
+ };
+
+ typedef boost::shared_ptr<MidiDeviceSetting> MidiDeviceSettings;
+ bool _can_set_midi_latencies;
+ std::vector<MidiDeviceSettings> _midi_devices;
+
+ MidiDeviceSettings find_midi_device(std::string devicename) const {
+ for (std::vector<MidiDeviceSettings>::const_iterator p = _midi_devices.begin(); p != _midi_devices.end(); ++p) {
+ if ((*p)->name == devicename) {
+ return *p;
+ }
+ }
+ return MidiDeviceSettings();
+ }
+
+ struct StateStruct {
+ std::string backend;
+ std::string driver;
+ std::string device;
+ std::string input_device;
+ std::string output_device;
+ float sample_rate;
+ uint32_t buffer_size;
+ uint32_t n_periods;
+ uint32_t input_latency;
+ uint32_t output_latency;
+ uint32_t input_channels;
+ uint32_t output_channels;
+ bool active;
+ std::string midi_option;
+ std::vector<MidiDeviceSettings> midi_devices;
+ time_t lru;
+
+ StateStruct()
+ : sample_rate (48000)
+ , buffer_size (1024)
+ , input_latency (0)
+ , output_latency (0)
+ , input_channels (0)
+ , output_channels (0)
+ , active (false)
+ , lru (0) {}
+
+ };
+
+ typedef boost::shared_ptr<StateStruct> State;
+ typedef std::list<State> StateList;
+ static bool state_sort_cmp (const State &a, const State &b);
+
+ StateList states;
+
+ State get_matching_state (const std::string& backend);
+ State get_matching_state (const std::string& backend,
+ const std::string& driver,
+ const std::string& device);
+ State get_matching_state (const std::string& backend,
+ const std::string& driver,
+ const std::string& input_device,
+ const std::string& output_device);
+ State get_saved_state_for_currently_displayed_backend_and_device ();
+ void maybe_display_saved_state ();
+ State save_state ();
+ void store_state (State);
+ bool equivalent_states (const State&, const State&);
+
+ bool set_current_state (const State& state);
+ void set_default_state ();
+
+ bool _have_control;
+
+ static bool print_channel_count (Gtk::SpinButton*);
+
+ void build_notebook ();
+ void build_full_control_notebook ();
+ void build_no_control_notebook ();
+
+ void connect_changed_signals ();
+ void block_changed_signals ();
+ void unblock_changed_signals ();
+
+ class SignalBlocker
+ {
+ public:
+ SignalBlocker (EngineControl& engine_control, const std::string& reason);
+
+ ~SignalBlocker ();
+
+ private:
+ EngineControl& ec;
+ std::string m_reason;
+ };
+
+ uint32_t block_signals;
+
+ sigc::connection backend_combo_connection;
+ sigc::connection driver_combo_connection;
+ sigc::connection sample_rate_combo_connection;
+ sigc::connection buffer_size_combo_connection;
+ sigc::connection nperiods_combo_connection;
+ sigc::connection device_combo_connection;
+ sigc::connection input_device_combo_connection;
+ sigc::connection output_device_combo_connection;
+ sigc::connection midi_option_combo_connection;
+ sigc::connection input_latency_connection;
+ sigc::connection output_latency_connection;
+ sigc::connection input_channels_connection;
+ sigc::connection output_channels_connection;
+
+ void on_show ();
+ void on_response (int);
+ void control_app_button_clicked ();
+ void start_stop_button_clicked ();
+ void update_devices_button_clicked ();
+ void use_latency_button_clicked ();
+ void manage_control_app_sensitivity ();
+ int push_state_to_backend (bool start);
+ void post_push ();
+ void update_sensitivity ();
+ bool start_engine ();
+ bool stop_engine (bool for_latency = false);
+
+ /* latency measurement */
+ void latency_button_clicked ();
+ void latency_back_button_clicked ();
+ bool check_audio_latency_measurement ();
+ bool check_midi_latency_measurement ();
+ sigc::connection latency_timeout;
+ void enable_latency_tab ();
+ void disable_latency_tab ();
+ void start_latency_detection ();
+ void end_latency_detection ();
+
+ void on_switch_page (GtkNotebookPage*, guint page_num);
+ bool on_delete_event (GdkEventAny*);
+
+ void engine_running ();
+ void engine_stopped ();
+ void device_list_changed ();
+
+ PBD::ScopedConnection running_connection;
+ PBD::ScopedConnectionList stopped_connection;
+ PBD::ScopedConnection devicelist_connection;
+
+ void connect_disconnect_click ();
+ void calibrate_audio_latency ();
+ void calibrate_midi_latency (MidiDeviceSettings);
+
+ MidiDeviceSettings _measure_midi;
+ void midi_latency_adjustment_changed(Gtk::Adjustment *, MidiDeviceSettings, bool);
+ void midi_device_enabled_toggled(ArdourButton *, MidiDeviceSettings);
+ sigc::connection lm_back_button_signal;