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>
65 /** A collection of input and output ports with connections.
67 * An IO can contain ports of varying types, making routes/inserts/etc with
68 * varied combinations of types (eg MIDI and audio) possible.
71 class IO : public Automatable, public Latent
74 static const string state_node_name;
76 IO (Session&, const string& name,
77 int input_min = -1, int input_max = -1,
78 int output_min = -1, int output_max = -1,
79 DataType default_type = DataType::AUDIO);
81 IO (Session&, const XMLNode&, DataType default_type = DataType::AUDIO);
85 ChanCount input_minimum() const { return _input_minimum; }
86 ChanCount input_maximum() const { return _input_maximum; }
87 ChanCount output_minimum() const { return _output_minimum; }
88 ChanCount output_maximum() const { return _output_maximum; }
90 void set_input_minimum (ChanCount n);
91 void set_input_maximum (ChanCount n);
92 void set_output_minimum (ChanCount n);
93 void set_output_maximum (ChanCount n);
95 DataType default_type() const { return _default_type; }
96 void set_default_type(DataType t) { _default_type = t; }
98 bool set_name (const string& str);
100 virtual void silence (nframes_t, nframes_t offset);
102 void collect_input (BufferSet& bufs, nframes_t nframes, nframes_t offset);
103 void deliver_output (BufferSet& bufs, nframes_t start_frame, nframes_t end_frame,
104 nframes_t nframes, nframes_t offset);
105 void just_meter_input (nframes_t start_frame, nframes_t end_frame,
106 nframes_t nframes, nframes_t offset);
108 gain_t gain () const { return _desired_gain; }
109 virtual gain_t effective_gain () const;
111 void set_denormal_protection (bool yn, void *src);
112 bool denormal_protection() const { return _denormal_protection; }
114 void set_phase_invert (bool yn, void *src);
115 bool phase_invert() const { return _phase_invert; }
117 Panner& panner() { return *_panner; }
118 PeakMeter& peak_meter() { return *_meter; }
119 const Panner& panner() const { return *_panner; }
121 int ensure_io (ChanCount in, ChanCount out, bool clear, void *src);
123 int use_input_bundle (Bundle&, void *src);
124 int use_output_bundle (Bundle&, void *src);
126 Bundle *input_bundle() const { return _input_bundle; }
127 Bundle *output_bundle() const { return _output_bundle; }
129 int add_input_port (string source, void *src, DataType type = DataType::NIL);
130 int add_output_port (string destination, void *src, DataType type = DataType::NIL);
132 int remove_input_port (Port *, void *src);
133 int remove_output_port (Port *, void *src);
135 int set_input (Port *, void *src);
137 int connect_input (Port *our_port, string other_port, void *src);
138 int connect_output (Port *our_port, string other_port, void *src);
140 int disconnect_input (Port *our_port, string other_port, void *src);
141 int disconnect_output (Port *our_port, string other_port, void *src);
143 int disconnect_inputs (void *src);
144 int disconnect_outputs (void *src);
146 nframes_t signal_latency() const { return _own_latency; }
147 nframes_t output_latency() const;
148 nframes_t input_latency() const;
149 void set_port_latency (nframes_t);
151 void update_port_total_latencies ();
153 const PortSet& inputs() const { return _inputs; }
154 const PortSet& outputs() const { return _outputs; }
156 Port *output (uint32_t n) const {
157 if (n < _outputs.num_ports()) {
158 return _outputs.port(n);
164 Port *input (uint32_t n) const {
165 if (n < _inputs.num_ports()) {
166 return _inputs.port(n);
172 AudioPort* audio_input(uint32_t n) const;
173 AudioPort* audio_output(uint32_t n) const;
174 MidiPort* midi_input(uint32_t n) const;
175 MidiPort* midi_output(uint32_t n) const;
177 const ChanCount& n_inputs () const { return _inputs.count(); }
178 const ChanCount& n_outputs () const { return _outputs.count(); }
180 void attach_buffers(ChanCount ignored);
182 sigc::signal<void,IOChange,void*> input_changed;
183 sigc::signal<void,IOChange,void*> output_changed;
185 virtual XMLNode& state (bool full);
186 XMLNode& get_state (void);
187 int set_state (const XMLNode&);
189 static int disable_connecting (void);
191 static int enable_connecting (void);
193 static int disable_ports (void);
195 static int enable_ports (void);
197 static int disable_panners (void);
199 static int reset_panners (void);
201 static sigc::signal<int> PortsLegal;
202 static sigc::signal<int> PannersLegal;
203 static sigc::signal<int> ConnectingLegal;
204 static sigc::signal<void,ChanCount> MoreChannels;
205 static sigc::signal<int> PortsCreated;
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 struct GainControl : public AutomationControl {
220 GainControl (std::string name, IO& i, boost::shared_ptr<AutomationList> al)
221 : AutomationControl (i._session, al, name)
225 void set_value (float val);
226 float get_value (void) const;
231 boost::shared_ptr<GainControl> gain_control() {
232 return _gain_control;
234 boost::shared_ptr<const GainControl> gain_control() const {
235 return _gain_control;
238 void clear_automation ();
240 void set_parameter_automation_state (Parameter, AutoState);
242 virtual void transport_stopped (nframes_t now); // interface: matches Insert
243 void automation_snapshot (nframes_t now); // interface: matches Automatable
245 void start_pan_touch (uint32_t which);
246 void end_pan_touch (uint32_t which);
248 void defer_pan_reset ();
249 void allow_pan_reset ();
251 /* the session calls this for master outs before
252 anyone else. controls outs too, at some point.
255 XMLNode *pending_state_node;
256 int ports_became_legal ();
259 mutable Glib::Mutex io_lock;
263 BufferSet* _output_buffers; //< Set directly to output port buffers
265 gain_t _effective_gain;
266 gain_t _desired_gain;
267 Glib::Mutex declick_lock;
271 Bundle* _input_bundle;
272 Bundle* _output_bundle;
273 bool no_panner_reset;
275 bool _denormal_protection;
276 XMLNode* deferred_state;
277 DataType _default_type;
279 virtual void set_deferred_state() {}
281 void reset_panner ();
283 virtual uint32_t pans_required() const
284 { return _inputs.count().n_audio(); }
286 boost::shared_ptr<GainControl> _gain_control;
288 virtual void set_gain (gain_t g, void *src);
289 void inc_gain (gain_t delta, void *src);
291 bool apply_gain_automation;
293 virtual int load_automation (std::string path);
295 /* AudioTrack::deprecated_use_diskstream_connections() needs these */
297 int set_inputs (const string& str);
298 int set_outputs (const string& str);
300 static bool connecting_legal;
301 static bool ports_legal;
303 BufferSet& output_buffers() { return *_output_buffers; }
309 /* are these the best variable names ever, or what? */
311 sigc::connection input_bundle_configuration_connection;
312 sigc::connection output_bundle_configuration_connection;
313 sigc::connection input_bundle_connection_connection;
314 sigc::connection output_bundle_connection_connection;
316 static bool panners_legal;
318 int connecting_became_legal ();
319 int panners_became_legal ();
320 sigc::connection connection_legal_c;
321 sigc::connection port_legal_c;
322 sigc::connection panner_legal_c;
324 ChanCount _input_minimum;
325 ChanCount _input_maximum;
326 ChanCount _output_minimum;
327 ChanCount _output_maximum;
330 static int parse_io_string (const string&, vector<string>& chns);
332 static int parse_gain_string (const string&, vector<string>& chns);
334 int set_sources (vector<string>&, void *src, bool add);
335 int set_destinations (vector<string>&, void *src, bool add);
337 int ensure_inputs (ChanCount, bool clear, bool lockit, void *src);
338 int ensure_outputs (ChanCount, bool clear, bool lockit, void *src);
340 void drop_input_bundle ();
341 void drop_output_bundle ();
343 void input_bundle_configuration_changed ();
344 void input_bundle_connection_changed (int);
345 void output_bundle_configuration_changed ();
346 void output_bundle_connection_changed (int);
348 int create_ports (const XMLNode&);
349 int make_connections (const XMLNode&);
351 void setup_peak_meters ();
354 bool ensure_inputs_locked (ChanCount, bool clear, void *src);
355 bool ensure_outputs_locked (ChanCount, bool clear, void *src);
357 int32_t find_input_port_hole ();
358 int32_t find_output_port_hole ();
361 } // namespace ARDOUR
363 #endif /*__ardour_io_h__ */