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/automatable.h>
38 #include <ardour/utils.h>
39 #include <ardour/curve.h>
40 #include <ardour/types.h>
41 #include <ardour/data_type.h>
42 #include <ardour/port_set.h>
43 #include <ardour/chan_count.h>
44 #include <ardour/latent.h>
45 #include <ardour/automation_control.h>
46 #include <ardour/user_bundle.h>
67 /** A collection of input and output ports with connections.
69 * An IO can contain ports of varying types, making routes/inserts/etc with
70 * varied combinations of types (eg MIDI and audio) possible.
73 class IO : public Automatable, public Latent
76 static const string state_node_name;
78 IO (Session&, const string& name,
79 int input_min = -1, int input_max = -1,
80 int output_min = -1, int output_max = -1,
81 DataType default_type = DataType::AUDIO);
83 IO (Session&, const XMLNode&, DataType default_type = DataType::AUDIO);
87 ChanCount input_minimum() const { return _input_minimum; }
88 ChanCount input_maximum() const { return _input_maximum; }
89 ChanCount output_minimum() const { return _output_minimum; }
90 ChanCount output_maximum() const { return _output_maximum; }
92 void set_input_minimum (ChanCount n);
93 void set_input_maximum (ChanCount n);
94 void set_output_minimum (ChanCount n);
95 void set_output_maximum (ChanCount n);
97 DataType default_type() const { return _default_type; }
98 void set_default_type(DataType t) { _default_type = t; }
100 bool set_name (const string& str);
102 virtual void silence (nframes_t, nframes_t offset);
104 void collect_input (BufferSet& bufs, nframes_t nframes, nframes_t offset);
105 void deliver_output (BufferSet& bufs, nframes_t start_frame, nframes_t end_frame,
106 nframes_t nframes, nframes_t offset);
107 void just_meter_input (nframes_t start_frame, nframes_t end_frame,
108 nframes_t nframes, nframes_t offset);
110 gain_t gain () const { return _desired_gain; }
111 virtual gain_t effective_gain () const;
113 void set_denormal_protection (bool yn, void *src);
114 bool denormal_protection() const { return _denormal_protection; }
116 void set_phase_invert (bool yn, void *src);
117 bool phase_invert() const { return _phase_invert; }
119 Panner& panner() { return *_panner; }
120 PeakMeter& peak_meter() { return *_meter; }
121 const Panner& panner() const { return *_panner; }
123 int ensure_io (ChanCount in, ChanCount out, bool clear, void *src);
125 int connect_input_ports_to_bundle (boost::shared_ptr<Bundle>, void *src);
126 int connect_output_ports_to_bundle (boost::shared_ptr<Bundle>, void *src);
128 std::vector<boost::shared_ptr<Bundle> > bundles_connected_to_inputs ();
129 std::vector<boost::shared_ptr<Bundle> > bundles_connected_to_outputs ();
131 boost::shared_ptr<AutoBundle> bundle_for_inputs () { return _bundle_for_inputs; }
132 boost::shared_ptr<AutoBundle> bundle_for_outputs () { return _bundle_for_outputs; }
134 int add_input_port (string source, void *src, DataType type = DataType::NIL);
135 int add_output_port (string destination, void *src, DataType type = DataType::NIL);
137 int remove_input_port (Port *, void *src);
138 int remove_output_port (Port *, void *src);
140 int set_input (Port *, void *src);
142 int connect_input (Port *our_port, string other_port, void *src);
143 int connect_output (Port *our_port, string other_port, void *src);
145 int disconnect_input (Port *our_port, string other_port, void *src);
146 int disconnect_output (Port *our_port, string other_port, void *src);
148 int disconnect_inputs (void *src);
149 int disconnect_outputs (void *src);
151 nframes_t signal_latency() const { return _own_latency; }
152 nframes_t output_latency() const;
153 nframes_t input_latency() const;
154 void set_port_latency (nframes_t);
156 void update_port_total_latencies ();
158 const PortSet& inputs() const { return _inputs; }
159 const PortSet& outputs() const { return _outputs; }
161 Port *output (uint32_t n) const {
162 if (n < _outputs.num_ports()) {
163 return _outputs.port(n);
169 Port *input (uint32_t n) const {
170 if (n < _inputs.num_ports()) {
171 return _inputs.port(n);
177 AudioPort* audio_input(uint32_t n) const;
178 AudioPort* audio_output(uint32_t n) const;
179 MidiPort* midi_input(uint32_t n) const;
180 MidiPort* midi_output(uint32_t n) const;
182 const ChanCount& n_inputs () const { return _inputs.count(); }
183 const ChanCount& n_outputs () const { return _outputs.count(); }
185 void attach_buffers(ChanCount ignored);
187 sigc::signal<void,IOChange,void*> input_changed;
188 sigc::signal<void,IOChange,void*> output_changed;
190 virtual XMLNode& state (bool full);
191 XMLNode& get_state (void);
192 int set_state (const XMLNode&);
194 static int disable_connecting (void);
196 static int enable_connecting (void);
198 static int disable_ports (void);
200 static int enable_ports (void);
202 static int disable_panners (void);
204 static int reset_panners (void);
206 static sigc::signal<int> PortsLegal;
207 static sigc::signal<int> PannersLegal;
208 static sigc::signal<int> ConnectingLegal;
209 /// raised when the number of input or output ports changes
210 static sigc::signal<void,ChanCount> PortCountChanged;
211 static sigc::signal<int> PortsCreated;
213 static void update_meters();
217 static sigc::signal<void> Meter;
218 static Glib::StaticMutex m_meter_signal_lock;
219 sigc::connection m_meter_connection;
225 struct GainControl : public AutomationControl {
226 GainControl (std::string name, IO& i, boost::shared_ptr<AutomationList> al)
227 : AutomationControl (i._session, al, name)
231 void set_value (float val);
232 float get_value (void) const;
237 boost::shared_ptr<GainControl> gain_control() {
238 return _gain_control;
240 boost::shared_ptr<const GainControl> gain_control() const {
241 return _gain_control;
244 void clear_automation ();
246 void set_parameter_automation_state (Parameter, AutoState);
248 virtual void transport_stopped (nframes_t now); // interface: matches Insert
249 void automation_snapshot (nframes_t now); // interface: matches Automatable
251 void start_pan_touch (uint32_t which);
252 void end_pan_touch (uint32_t which);
254 void defer_pan_reset ();
255 void allow_pan_reset ();
257 /* the session calls this for master outs before
258 anyone else. controls outs too, at some point.
261 XMLNode *pending_state_node;
262 int ports_became_legal ();
265 mutable Glib::Mutex io_lock;
269 BufferSet* _output_buffers; //< Set directly to output port buffers
271 gain_t _effective_gain;
272 gain_t _desired_gain;
273 Glib::Mutex declick_lock;
277 bool no_panner_reset;
279 bool _denormal_protection;
280 XMLNode* deferred_state;
281 DataType _default_type;
283 virtual void set_deferred_state() {}
285 void reset_panner ();
287 virtual uint32_t pans_required() const
288 { return _inputs.count().n_audio(); }
290 boost::shared_ptr<GainControl> _gain_control;
292 virtual void set_gain (gain_t g, void *src);
293 void inc_gain (gain_t delta, void *src);
295 bool apply_gain_automation;
297 virtual int load_automation (std::string path);
299 /* AudioTrack::deprecated_use_diskstream_connections() needs these */
301 int set_inputs (const string& str);
302 int set_outputs (const string& str);
304 static bool connecting_legal;
305 static bool ports_legal;
307 BufferSet& output_buffers() { return *_output_buffers; }
313 static bool panners_legal;
315 int connecting_became_legal ();
316 int panners_became_legal ();
317 sigc::connection connection_legal_c;
318 sigc::connection port_legal_c;
319 sigc::connection panner_legal_c;
321 ChanCount _input_minimum; ///< minimum number of input channels (0 for no minimum)
322 ChanCount _input_maximum; ///< maximum number of input channels (ChanCount::INFINITE for no maximum)
323 ChanCount _output_minimum; ///< minimum number of output channels (0 for no minimum)
324 ChanCount _output_maximum; ///< maximum number of output channels (ChanCount::INFINITE for no maximum)
326 boost::shared_ptr<AutoBundle> _bundle_for_inputs; ///< a bundle representing our inputs
327 boost::shared_ptr<AutoBundle> _bundle_for_outputs; ///< a bundle representing our outputs
329 struct UserBundleInfo {
330 UserBundleInfo (IO*, boost::shared_ptr<UserBundle> b);
332 boost::shared_ptr<UserBundle> bundle;
333 sigc::connection configuration_will_change;
334 sigc::connection configuration_has_changed;
335 sigc::connection ports_will_change;
336 sigc::connection ports_have_changed;
339 std::vector<UserBundleInfo> _bundles_connected_to_outputs; ///< user bundles connected to our outputs
340 std::vector<UserBundleInfo> _bundles_connected_to_inputs; ///< user bundles connected to our inputs
342 static int parse_io_string (const string&, vector<string>& chns);
344 static int parse_gain_string (const string&, vector<string>& chns);
346 int set_sources (vector<string>&, void *src, bool add);
347 int set_destinations (vector<string>&, void *src, bool add);
349 int ensure_inputs (ChanCount, bool clear, bool lockit, void *src);
350 int ensure_outputs (ChanCount, bool clear, bool lockit, void *src);
352 void check_bundles_connected_to_inputs ();
353 void check_bundles_connected_to_outputs ();
354 void check_bundles (std::vector<UserBundleInfo>&, const PortSet&);
356 void bundle_configuration_will_change ();
357 void bundle_configuration_has_changed ();
358 void bundle_ports_will_change (int);
359 void bundle_ports_have_changed (int);
361 int create_ports (const XMLNode&);
362 int make_connections (const XMLNode&);
364 void setup_peak_meters ();
367 bool ensure_inputs_locked (ChanCount, bool clear, void *src);
368 bool ensure_outputs_locked (ChanCount, bool clear, void *src);
370 int32_t find_input_port_hole ();
371 int32_t find_output_port_hole ();
373 void create_bundles_for_inputs_and_outputs ();
374 void setup_bundles_for_inputs_and_outputs ();
376 void maybe_add_input_bundle_to_list (boost::shared_ptr<Bundle>, std::vector<boost::shared_ptr<Bundle> >*);
377 void maybe_add_output_bundle_to_list (boost::shared_ptr<Bundle>, std::vector<boost::shared_ptr<Bundle> >*);
380 } // namespace ARDOUR
382 #endif /*__ardour_io_h__ */