2 Copyright (C) 2000 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #ifndef __ardour_io_h__
22 #define __ardour_io_h__
27 #include <sigc++/signal.h>
28 #include <jack/jack.h>
30 #include <glibmm/thread.h>
32 #include <pbd/fastlog.h>
34 #include <pbd/stateful.h>
35 #include <pbd/controllable.h>
37 #include <ardour/ardour.h>
38 #include <ardour/utils.h>
39 #include <ardour/state_manager.h>
40 #include <ardour/curve.h>
41 #include <ardour/types.h>
42 #include <ardour/data_type.h>
43 #include <ardour/port_set.h>
44 #include <ardour/chan_count.h>
61 /** A collection of input and output ports with connections.
63 * An IO can contain ports of varying types, making routes/inserts/etc with
64 * varied combinations of types (eg MIDI and audio) possible.
66 class IO : public Stateful, public ARDOUR::StateManager
70 static const string state_node_name;
72 IO (Session&, string name,
73 int input_min = -1, int input_max = -1,
74 int output_min = -1, int output_max = -1,
75 DataType default_type = DataType::AUDIO);
79 ChanCount input_minimum() const { return _input_minimum; }
80 ChanCount input_maximum() const { return _input_maximum; }
81 ChanCount output_minimum() const { return _output_minimum; }
82 ChanCount output_maximum() const { return _output_maximum; }
84 void set_input_minimum (ChanCount n);
85 void set_input_maximum (ChanCount n);
86 void set_output_minimum (ChanCount n);
87 void set_output_maximum (ChanCount n);
89 // Do not write any new code using these
90 void set_input_minimum (int n);
91 void set_input_maximum (int n);
92 void set_output_minimum (int n);
93 void set_output_maximum (int n);
95 DataType default_type() const { return _default_type; }
97 const string& name() const { return _name; }
98 virtual int set_name (string str, void *src);
100 virtual void silence (jack_nframes_t, jack_nframes_t offset);
102 // These should be moved in to a separate object that manipulates an IO
104 void pan (vector<Sample*>& bufs, uint32_t nbufs, jack_nframes_t nframes, jack_nframes_t offset, gain_t gain_coeff);
105 void pan_automated (vector<Sample*>& bufs, uint32_t nbufs, jack_nframes_t start_frame, jack_nframes_t end_frame,
106 jack_nframes_t nframes, jack_nframes_t offset);
107 void collect_input (vector<Sample*>&, uint32_t nbufs, jack_nframes_t nframes, jack_nframes_t offset);
108 void deliver_output (vector<Sample*>&, uint32_t nbufs, jack_nframes_t nframes, jack_nframes_t offset);
109 void deliver_output_no_pan (vector<Sample*>&, uint32_t nbufs, jack_nframes_t nframes, jack_nframes_t offset);
110 void just_meter_input (jack_nframes_t start_frame, jack_nframes_t end_frame,
111 jack_nframes_t nframes, jack_nframes_t offset);
113 virtual uint32_t n_process_buffers () { return 0; }
115 virtual void set_gain (gain_t g, void *src);
116 void inc_gain (gain_t delta, void *src);
117 gain_t gain () const { return _desired_gain; }
118 virtual gain_t effective_gain () const;
120 Panner& panner() { return *_panner; }
122 int ensure_io (uint32_t, uint32_t, bool clear, void *src);
124 int use_input_connection (Connection&, void *src);
125 int use_output_connection (Connection&, void *src);
127 Connection *input_connection() const { return _input_connection; }
128 Connection *output_connection() const { return _output_connection; }
130 int add_input_port (string source, void *src, DataType type = DataType::NIL);
131 int add_output_port (string destination, void *src, DataType type = DataType::NIL);
133 int remove_input_port (Port *, void *src);
134 int remove_output_port (Port *, void *src);
136 int set_input (Port *, void *src);
138 int connect_input (Port *our_port, string other_port, void *src);
139 int connect_output (Port *our_port, string other_port, void *src);
141 int disconnect_input (Port *our_port, string other_port, void *src);
142 int disconnect_output (Port *our_port, string other_port, void *src);
144 int disconnect_inputs (void *src);
145 int disconnect_outputs (void *src);
147 jack_nframes_t output_latency() const;
148 jack_nframes_t input_latency() const;
149 void set_port_latency (jack_nframes_t);
151 Port *output (uint32_t n) const {
152 if (n < _outputs.num_ports()) {
153 return _outputs.port(n);
159 Port *input (uint32_t n) const {
160 if (n < _inputs.num_ports()) {
161 return _inputs.port(n);
167 AudioPort* audio_input(uint32_t n) const;
168 AudioPort* audio_output(uint32_t n) const;
169 MidiPort* midi_input(uint32_t n) const;
170 MidiPort* midi_output(uint32_t n) const;
172 const ChanCount& n_inputs () const { return _inputs.chan_count(); }
173 const ChanCount& n_outputs () const { return _outputs.chan_count(); }
175 sigc::signal<void,IOChange,void*> input_changed;
176 sigc::signal<void,IOChange,void*> output_changed;
178 sigc::signal<void,void*> gain_changed;
179 sigc::signal<void,void*> name_changed;
181 virtual XMLNode& state (bool full);
182 XMLNode& get_state (void);
183 int set_state (const XMLNode&);
185 virtual UndoAction get_memento() const;
188 static int disable_connecting (void);
190 static int enable_connecting (void);
192 static int disable_ports (void);
194 static int enable_ports (void);
196 static int disable_panners (void);
198 static int reset_panners (void);
200 static sigc::signal<int> PortsLegal;
201 static sigc::signal<int> PannersLegal;
202 static sigc::signal<int> ConnectingLegal;
203 static sigc::signal<void,ChanCount> MoreOutputs;
204 static sigc::signal<int> PortsCreated;
206 PBD::Controllable& gain_control() {
207 return _gain_control;
212 float peak_input_power (uint32_t n) {
213 if (n < std::max (_inputs.chan_count().get(DataType::AUDIO),
214 _outputs.chan_count().get(DataType::AUDIO))) {
215 return _visible_peak_power[n];
217 return minus_infinity();
221 static void update_meters();
225 static sigc::signal<void> Meter;
226 static Glib::StaticMutex m_meter_signal_lock;
227 sigc::connection m_meter_connection;
233 void clear_automation ();
235 bool gain_automation_recording() const {
236 return (_gain_automation_curve.automation_state() & (Write|Touch));
239 bool gain_automation_playback() const {
240 return (_gain_automation_curve.automation_state() & Play) ||
241 ((_gain_automation_curve.automation_state() & Touch) &&
242 !_gain_automation_curve.touching());
245 virtual void set_gain_automation_state (AutoState);
246 AutoState gain_automation_state() const { return _gain_automation_curve.automation_state(); }
247 sigc::signal<void> gain_automation_state_changed;
249 virtual void set_gain_automation_style (AutoStyle);
250 AutoStyle gain_automation_style () const { return _gain_automation_curve.automation_style(); }
251 sigc::signal<void> gain_automation_style_changed;
253 static void set_automation_interval (jack_nframes_t frames) {
254 _automation_interval = frames;
257 static jack_nframes_t automation_interval() {
258 return _automation_interval;
261 virtual void transport_stopped (jack_nframes_t now);
262 virtual void automation_snapshot (jack_nframes_t now);
264 ARDOUR::Curve& gain_automation_curve () { return _gain_automation_curve; }
266 void start_gain_touch ();
267 void end_gain_touch ();
269 void start_pan_touch (uint32_t which);
270 void end_pan_touch (uint32_t which);
272 const PBD::ID& id() const { return _id; }
274 void defer_pan_reset ();
275 void allow_pan_reset ();
277 /* the session calls this for master outs before
278 anyone else. controls outs too, at some point.
281 XMLNode *pending_state_node;
282 int ports_became_legal ();
285 mutable Glib::Mutex io_lock;
291 gain_t _effective_gain;
292 gain_t _desired_gain;
293 Glib::Mutex declick_lock;
296 vector<float> _peak_power;
297 vector<float> _visible_peak_power;
299 Connection* _input_connection;
300 Connection* _output_connection;
302 bool no_panner_reset;
303 XMLNode* deferred_state;
304 DataType _default_type;
306 virtual void set_deferred_state() {}
308 void reset_peak_meters();
309 void reset_panner ();
311 virtual uint32_t pans_required() const
312 { return _inputs.chan_count().get(DataType::AUDIO); }
314 static void apply_declick (vector<Sample*>&, uint32_t nbufs, jack_nframes_t nframes,
315 gain_t initial, gain_t target, bool invert_polarity);
317 struct GainControllable : public PBD::Controllable {
318 GainControllable (IO& i) : io (i) {}
320 void set_value (float val);
321 float get_value (void) const;
326 GainControllable _gain_control;
328 /* state management */
330 Change restore_state (State&);
331 StateManager::State* state_factory (std::string why) const;
335 jack_nframes_t last_automation_snapshot;
336 static jack_nframes_t _automation_interval;
338 AutoState _gain_automation_state;
339 AutoStyle _gain_automation_style;
341 bool apply_gain_automation;
342 Curve _gain_automation_curve;
344 int save_automation (const string&);
345 int load_automation (const string&);
347 Glib::Mutex automation_lock;
349 /* AudioTrack::deprecated_use_diskstream_connections() needs these */
351 int set_inputs (const string& str);
352 int set_outputs (const string& str);
354 static bool connecting_legal;
355 static bool ports_legal;
360 /* are these the best variable names ever, or what? */
362 sigc::connection input_connection_configuration_connection;
363 sigc::connection output_connection_configuration_connection;
364 sigc::connection input_connection_connection_connection;
365 sigc::connection output_connection_connection_connection;
367 static bool panners_legal;
369 int connecting_became_legal ();
370 int panners_became_legal ();
371 sigc::connection connection_legal_c;
372 sigc::connection port_legal_c;
373 sigc::connection panner_legal_c;
375 ChanCount _input_minimum;
376 ChanCount _input_maximum;
377 ChanCount _output_minimum;
378 ChanCount _output_maximum;
381 static int parse_io_string (const string&, vector<string>& chns);
383 static int parse_gain_string (const string&, vector<string>& chns);
385 int set_sources (vector<string>&, void *src, bool add);
386 int set_destinations (vector<string>&, void *src, bool add);
388 int ensure_inputs (uint32_t, bool clear, bool lockit, void *src);
389 int ensure_outputs (uint32_t, bool clear, bool lockit, void *src);
391 void drop_input_connection ();
392 void drop_output_connection ();
394 void input_connection_configuration_changed ();
395 void input_connection_connection_changed (int);
396 void output_connection_configuration_changed ();
397 void output_connection_connection_changed (int);
399 int create_ports (const XMLNode&);
400 int make_connections (const XMLNode&);
402 void setup_peak_meters ();
405 bool ensure_inputs_locked (uint32_t, bool clear, void *src);
406 bool ensure_outputs_locked (uint32_t, bool clear, void *src);
408 int32_t find_input_port_hole ();
409 int32_t find_output_port_hole ();
412 } // namespace ARDOUR
414 #endif /*__ardour_io_h__ */