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.
20 #ifndef __ardour_io_h__
21 #define __ardour_io_h__
26 #include <sigc++/signal.h>
27 #include <jack/jack.h>
29 #include <glibmm/thread.h>
31 #include <pbd/fastlog.h>
33 #include <pbd/statefuldestructible.h>
34 #include <pbd/controllable.h>
36 #include <ardour/ardour.h>
37 #include <ardour/utils.h>
38 #include <ardour/curve.h>
39 #include <ardour/types.h>
40 #include <ardour/data_type.h>
41 #include <ardour/port_set.h>
42 #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 PBD::StatefulDestructible
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);
77 IO (Session&, const XMLNode&, DataType default_type = DataType::AUDIO);
81 ChanCount input_minimum() const { return _input_minimum; }
82 ChanCount input_maximum() const { return _input_maximum; }
83 ChanCount output_minimum() const { return _output_minimum; }
84 ChanCount output_maximum() const { return _output_maximum; }
86 void set_input_minimum (ChanCount n);
87 void set_input_maximum (ChanCount n);
88 void set_output_minimum (ChanCount n);
89 void set_output_maximum (ChanCount n);
91 DataType default_type() const { return _default_type; }
92 void set_default_type(DataType t) { _default_type = t; }
94 const string& name() const { return _name; }
95 virtual int set_name (string str, void *src);
97 virtual void silence (nframes_t, nframes_t offset);
99 void collect_input (BufferSet& bufs, nframes_t nframes, nframes_t offset);
100 void deliver_output (BufferSet& bufs, nframes_t start_frame, nframes_t end_frame,
101 nframes_t nframes, nframes_t offset);
102 void just_meter_input (nframes_t start_frame, nframes_t end_frame,
103 nframes_t nframes, nframes_t offset);
105 virtual void set_gain (gain_t g, void *src);
106 void inc_gain (gain_t delta, void *src);
107 gain_t gain () const { return _desired_gain; }
108 virtual gain_t effective_gain () const;
110 void set_phase_invert (bool yn, void *src);
111 bool phase_invert() const { return _phase_invert; }
113 Panner& panner() { return *_panner; }
114 PeakMeter& peak_meter() { return *_meter; }
115 const Panner& panner() const { return *_panner; }
117 int ensure_io (ChanCount in, ChanCount out, bool clear, void *src);
119 int use_input_connection (Connection&, void *src);
120 int use_output_connection (Connection&, void *src);
122 Connection *input_connection() const { return _input_connection; }
123 Connection *output_connection() const { return _output_connection; }
125 int add_input_port (string source, void *src, DataType type = DataType::NIL);
126 int add_output_port (string destination, void *src, DataType type = DataType::NIL);
128 int remove_input_port (Port *, void *src);
129 int remove_output_port (Port *, void *src);
131 int set_input (Port *, void *src);
133 int connect_input (Port *our_port, string other_port, void *src);
134 int connect_output (Port *our_port, string other_port, void *src);
136 int disconnect_input (Port *our_port, string other_port, void *src);
137 int disconnect_output (Port *our_port, string other_port, void *src);
139 int disconnect_inputs (void *src);
140 int disconnect_outputs (void *src);
142 nframes_t output_latency() const;
143 nframes_t input_latency() const;
144 void set_port_latency (nframes_t);
146 const PortSet& inputs() const { return _inputs; }
147 const PortSet& outputs() const { return _outputs; }
149 Port *output (uint32_t n) const {
150 if (n < _outputs.num_ports()) {
151 return _outputs.port(n);
157 Port *input (uint32_t n) const {
158 if (n < _inputs.num_ports()) {
159 return _inputs.port(n);
165 AudioPort* audio_input(uint32_t n) const;
166 AudioPort* audio_output(uint32_t n) const;
167 MidiPort* midi_input(uint32_t n) const;
168 MidiPort* midi_output(uint32_t n) const;
170 const ChanCount& n_inputs () const { return _inputs.count(); }
171 const ChanCount& n_outputs () const { return _outputs.count(); }
173 void attach_buffers(ChanCount ignored);
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 static int disable_connecting (void);
187 static int enable_connecting (void);
189 static int disable_ports (void);
191 static int enable_ports (void);
193 static int disable_panners (void);
195 static int reset_panners (void);
197 static sigc::signal<int> PortsLegal;
198 static sigc::signal<int> PannersLegal;
199 static sigc::signal<int> ConnectingLegal;
200 static sigc::signal<void,ChanCount> MoreChannels;
201 static sigc::signal<int> PortsCreated;
203 PBD::Controllable& gain_control() {
204 return _gain_control;
207 static void update_meters();
211 static sigc::signal<void> Meter;
212 static Glib::StaticMutex m_meter_signal_lock;
213 sigc::connection m_meter_connection;
219 static void set_automation_interval (nframes_t frames) {
220 _automation_interval = frames;
223 static nframes_t automation_interval() {
224 return _automation_interval;
227 void clear_automation ();
229 bool gain_automation_recording() const {
230 return (_gain_automation_curve.automation_state() & (Write|Touch));
233 bool gain_automation_playback() const {
234 return (_gain_automation_curve.automation_state() & Play) ||
235 ((_gain_automation_curve.automation_state() & Touch) &&
236 !_gain_automation_curve.touching());
239 virtual void set_gain_automation_state (AutoState);
240 AutoState gain_automation_state() const { return _gain_automation_curve.automation_state(); }
241 sigc::signal<void> gain_automation_state_changed;
243 virtual void set_gain_automation_style (AutoStyle);
244 AutoStyle gain_automation_style () const { return _gain_automation_curve.automation_style(); }
245 sigc::signal<void> gain_automation_style_changed;
247 virtual void transport_stopped (nframes_t now);
248 void automation_snapshot (nframes_t now);
250 ARDOUR::Curve& gain_automation_curve () { return _gain_automation_curve; }
252 void start_gain_touch ();
253 void end_gain_touch ();
255 void start_pan_touch (uint32_t which);
256 void end_pan_touch (uint32_t which);
258 void defer_pan_reset ();
259 void allow_pan_reset ();
261 /* the session calls this for master outs before
262 anyone else. controls outs too, at some point.
265 XMLNode *pending_state_node;
266 int ports_became_legal ();
269 mutable Glib::Mutex io_lock;
274 BufferSet* _output_buffers; //< Set directly to output port buffers
276 gain_t _effective_gain;
277 gain_t _desired_gain;
278 Glib::Mutex declick_lock;
283 Connection* _input_connection;
284 Connection* _output_connection;
285 bool no_panner_reset;
287 XMLNode* deferred_state;
288 DataType _default_type;
290 virtual void set_deferred_state() {}
292 void reset_panner ();
294 virtual uint32_t pans_required() const
295 { return _inputs.count().get(DataType::AUDIO); }
297 struct GainControllable : public PBD::Controllable {
298 GainControllable (std::string name, IO& i) : Controllable (name), io (i) {}
300 void set_value (float val);
301 float get_value (void) const;
306 GainControllable _gain_control;
308 nframes_t last_automation_snapshot;
309 static nframes_t _automation_interval;
311 AutoState _gain_automation_state;
312 AutoStyle _gain_automation_style;
314 bool apply_gain_automation;
315 Curve _gain_automation_curve;
317 Glib::Mutex automation_lock;
319 virtual int set_automation_state (const XMLNode&);
320 virtual XMLNode& get_automation_state ();
321 virtual int load_automation (std::string path);
323 /* AudioTrack::deprecated_use_diskstream_connections() needs these */
325 int set_inputs (const string& str);
326 int set_outputs (const string& str);
328 static bool connecting_legal;
329 static bool ports_legal;
331 BufferSet& output_buffers() { return *_output_buffers; }
335 /* are these the best variable names ever, or what? */
337 sigc::connection input_connection_configuration_connection;
338 sigc::connection output_connection_configuration_connection;
339 sigc::connection input_connection_connection_connection;
340 sigc::connection output_connection_connection_connection;
342 static bool panners_legal;
344 int connecting_became_legal ();
345 int panners_became_legal ();
346 sigc::connection connection_legal_c;
347 sigc::connection port_legal_c;
348 sigc::connection panner_legal_c;
350 ChanCount _input_minimum;
351 ChanCount _input_maximum;
352 ChanCount _output_minimum;
353 ChanCount _output_maximum;
356 static int parse_io_string (const string&, vector<string>& chns);
358 static int parse_gain_string (const string&, vector<string>& chns);
360 int set_sources (vector<string>&, void *src, bool add);
361 int set_destinations (vector<string>&, void *src, bool add);
363 int ensure_inputs (ChanCount, bool clear, bool lockit, void *src);
364 int ensure_outputs (ChanCount, bool clear, bool lockit, void *src);
366 void drop_input_connection ();
367 void drop_output_connection ();
369 void input_connection_configuration_changed ();
370 void input_connection_connection_changed (int);
371 void output_connection_configuration_changed ();
372 void output_connection_connection_changed (int);
374 int create_ports (const XMLNode&);
375 int make_connections (const XMLNode&);
377 void setup_peak_meters ();
380 bool ensure_inputs_locked (ChanCount, bool clear, void *src);
381 bool ensure_outputs_locked (ChanCount, bool clear, void *src);
383 int32_t find_input_port_hole ();
384 int32_t find_output_port_hole ();
387 } // namespace ARDOUR
389 #endif /*__ardour_io_h__ */