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_controls.h"
38 #include "ardour/automation_control.h"
39 #include "ardour/bundle.h"
40 #include "ardour/chan_count.h"
41 #include "ardour/data_type.h"
42 #include "ardour/latent.h"
43 #include "ardour/port_set.h"
44 #include "ardour/session_object.h"
45 #include "ardour/types.h"
46 #include "ardour/utils.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.
72 class IO : public SessionObject, public AutomatableControls, public Latent
75 static const string state_node_name;
77 IO (Session&, const string& name, DataType default_type = DataType::AUDIO,
78 ChanCount in_min=ChanCount::ZERO, ChanCount in_max=ChanCount::INFINITE,
79 ChanCount out_min=ChanCount::ZERO, ChanCount out_max=ChanCount::INFINITE);
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 bool active() const { return _active; }
96 void set_active (bool yn);
98 DataType default_type() const { return _default_type; }
99 void set_default_type(DataType t) { _default_type = t; }
101 bool set_name (const string& str);
103 virtual void silence (nframes_t);
105 void collect_input (BufferSet& bufs, nframes_t nframes);
106 void deliver_output (BufferSet& bufs, nframes_t start_frame, nframes_t end_frame, nframes_t nframes);
107 void just_meter_input (nframes_t start_frame, nframes_t end_frame, nframes_t nframes);
109 BufferSet& output_buffers() { return *_output_buffers; }
111 gain_t gain () const { return _gain_control->user_float(); }
112 virtual gain_t effective_gain () const;
114 void set_denormal_protection (bool yn, void *src);
115 bool denormal_protection() const { return _denormal_protection; }
117 void set_phase_invert (bool yn, void *src);
118 bool phase_invert() const { return _phase_invert; }
120 void reset_panner ();
122 boost::shared_ptr<Amp> amp() const { return _amp; }
124 PeakMeter& peak_meter() { return *_meter.get(); }
125 const PeakMeter& peak_meter() const { return *_meter.get(); }
126 boost::shared_ptr<PeakMeter> shared_peak_meter() const { return _meter; }
128 boost::shared_ptr<Panner> panner() const { return _panner; }
130 int ensure_io (ChanCount in, ChanCount out, bool clear, void *src);
132 int connect_input_ports_to_bundle (boost::shared_ptr<Bundle>, void *);
133 int disconnect_input_ports_from_bundle (boost::shared_ptr<Bundle>, void *);
134 int connect_output_ports_to_bundle (boost::shared_ptr<Bundle>, void *);
135 int disconnect_output_ports_from_bundle (boost::shared_ptr<Bundle>, void *);
137 BundleList bundles_connected_to_inputs ();
138 BundleList bundles_connected_to_outputs ();
140 boost::shared_ptr<Bundle> bundle_for_inputs () { return _bundle_for_inputs; }
141 boost::shared_ptr<Bundle> bundle_for_outputs () { return _bundle_for_outputs; }
143 int add_input_port (string source, void *src, DataType type = DataType::NIL);
144 int add_output_port (string destination, void *src, DataType type = DataType::NIL);
146 int remove_input_port (Port *, void *src);
147 int remove_output_port (Port *, void *src);
149 int set_input (Port *, void *src);
151 int connect_input (Port *our_port, string other_port, void *src);
152 int connect_output (Port *our_port, string other_port, void *src);
154 int disconnect_input (Port *our_port, string other_port, void *src);
155 int disconnect_output (Port *our_port, string other_port, void *src);
157 int disconnect_inputs (void *src);
158 int disconnect_outputs (void *src);
160 nframes_t signal_latency() const { return _own_latency; }
161 nframes_t output_latency() const;
162 nframes_t input_latency() const;
163 void set_port_latency (nframes_t);
165 void update_port_total_latencies ();
167 const PortSet& inputs() const { return _inputs; }
168 const PortSet& outputs() const { return _outputs; }
170 Port *output (uint32_t n) const {
171 if (n < _outputs.num_ports()) {
172 return _outputs.port(n);
178 Port *input (uint32_t n) const {
179 if (n < _inputs.num_ports()) {
180 return _inputs.port(n);
186 AudioPort* audio_input(uint32_t n) const;
187 AudioPort* audio_output(uint32_t n) const;
188 MidiPort* midi_input(uint32_t n) const;
189 MidiPort* midi_output(uint32_t n) const;
191 const ChanCount& n_inputs () const { return _inputs.count(); }
192 const ChanCount& n_outputs () const { return _outputs.count(); }
194 void attach_buffers(ChanCount ignored);
196 sigc::signal<void> active_changed;
198 sigc::signal<void,IOChange,void*> input_changed;
199 sigc::signal<void,IOChange,void*> output_changed;
201 virtual XMLNode& state (bool full);
202 XMLNode& get_state (void);
203 int set_state (const XMLNode&);
205 static int disable_connecting (void);
206 static int enable_connecting (void);
207 static int disable_ports (void);
208 static int enable_ports (void);
209 static int disable_panners (void);
210 static int reset_panners (void);
212 static sigc::signal<int> PortsLegal;
213 static sigc::signal<int> PannersLegal;
214 static sigc::signal<int> ConnectingLegal;
215 /// raised when the number of input or output ports changes
216 static sigc::signal<void,ChanCount> PortCountChanged;
217 static sigc::signal<int> PortsCreated;
218 static sigc::signal<void,nframes_t> CycleStart;
220 static void update_meters();
221 static std::string name_from_state (const XMLNode&);
222 static void set_name_in_state (XMLNode&, const std::string&);
226 static sigc::signal<void> Meter;
227 static Glib::StaticMutex m_meter_signal_lock;
228 sigc::connection m_meter_connection;
234 struct GainControl : public AutomationControl {
235 GainControl (std::string name, IO* i, const Evoral::Parameter ¶m,
236 boost::shared_ptr<AutomationList> al = boost::shared_ptr<AutomationList>() )
237 : AutomationControl (i->_session, param, al, name )
241 void set_value (float val);
242 float get_value (void) const;
247 boost::shared_ptr<GainControl> gain_control() {
248 return _gain_control;
250 boost::shared_ptr<const GainControl> gain_control() const {
251 return _gain_control;
254 void clear_automation ();
256 void set_parameter_automation_state (Evoral::Parameter, AutoState);
258 virtual void transport_stopped (nframes_t now);
259 virtual void automation_snapshot (nframes_t now, bool force);
261 void start_pan_touch (uint32_t which);
262 void end_pan_touch (uint32_t which);
264 void defer_pan_reset ();
265 void allow_pan_reset ();
267 /* the session calls this for master outs before
268 anyone else. controls outs too, at some point.
271 XMLNode *pending_state_node;
272 int ports_became_legal ();
275 mutable Glib::Mutex io_lock;
278 BufferSet* _output_buffers; //< Set directly to output port buffers
281 Glib::Mutex declick_lock;
284 bool no_panner_reset;
286 bool _denormal_protection;
287 XMLNode* deferred_state;
288 DataType _default_type;
289 nframes_t _output_offset;
290 ChanCount _configured_inputs;
291 ChanCount _configured_outputs;
293 boost::shared_ptr<Amp> _amp;
294 boost::shared_ptr<PeakMeter> _meter;
295 boost::shared_ptr<Panner> _panner;
297 virtual void prepare_inputs (nframes_t nframes);
298 virtual void flush_outputs (nframes_t nframes);
300 virtual void set_deferred_state() {}
302 virtual uint32_t pans_required() const
303 { return _inputs.count().n_audio(); }
305 boost::shared_ptr<GainControl> _gain_control;
307 virtual void set_gain (gain_t g, void *src);
308 void inc_gain (gain_t delta, void *src);
310 virtual int load_automation (std::string path);
312 /* AudioTrack::deprecated_use_diskstream_connections() needs these */
314 int set_inputs (const string& str);
315 int set_outputs (const string& str);
317 void increment_output_offset (nframes_t);
318 void cycle_start (nframes_t);
320 static bool connecting_legal;
321 static bool ports_legal;
324 static bool panners_legal;
326 void copy_to_outputs (BufferSet& bufs, DataType type, nframes_t nframes);
328 int connecting_became_legal ();
329 int panners_became_legal ();
330 sigc::connection connection_legal_c;
331 sigc::connection port_legal_c;
332 sigc::connection panner_legal_c;
334 ChanCount _input_minimum; ///< minimum number of input channels (0 for no minimum)
335 ChanCount _input_maximum; ///< maximum number of input channels (ChanCount::INFINITE for no maximum)
336 ChanCount _output_minimum; ///< minimum number of output channels (0 for no minimum)
337 ChanCount _output_maximum; ///< maximum number of output channels (ChanCount::INFINITE for no maximum)
339 boost::shared_ptr<Bundle> _bundle_for_inputs; ///< a bundle representing our inputs
340 boost::shared_ptr<Bundle> _bundle_for_outputs; ///< a bundle representing our outputs
342 struct UserBundleInfo {
343 UserBundleInfo (IO*, boost::shared_ptr<UserBundle> b);
345 boost::shared_ptr<UserBundle> bundle;
346 sigc::connection changed;
349 std::vector<UserBundleInfo> _bundles_connected_to_outputs; ///< user bundles connected to our outputs
350 std::vector<UserBundleInfo> _bundles_connected_to_inputs; ///< user bundles connected to our inputs
352 static int parse_io_string (const string&, vector<string>& chns);
354 static int parse_gain_string (const string&, vector<string>& chns);
356 int set_sources (vector<string>&, void *src, bool add);
357 int set_destinations (vector<string>&, void *src, bool add);
359 int ensure_inputs (ChanCount, bool clear, bool lockit, void *src);
360 int ensure_outputs (ChanCount, bool clear, bool lockit, void *src);
362 void check_bundles_connected_to_inputs ();
363 void check_bundles_connected_to_outputs ();
364 void check_bundles (std::vector<UserBundleInfo>&, const PortSet&);
366 void bundle_changed (Bundle::Change);
368 int get_port_counts (const XMLNode& node);
369 int create_ports (const XMLNode&);
370 int make_connections (const XMLNode&);
371 boost::shared_ptr<Bundle> find_possible_bundle (const string &desired_name, const string &default_name, const string &connection_type_name);
373 virtual void setup_peak_meters ();
376 bool ensure_inputs_locked (ChanCount, bool clear, void *src);
377 bool ensure_outputs_locked (ChanCount, bool clear, void *src);
379 std::string build_legal_port_name (DataType type, bool for_input);
380 int32_t find_input_port_hole (const char* base);
381 int32_t find_output_port_hole (const char* base);
383 void setup_bundles_for_inputs_and_outputs ();
384 void setup_bundle_for_inputs ();
385 void setup_bundle_for_outputs ();
386 std::string bundle_channel_name (uint32_t, uint32_t) const;
389 } // namespace ARDOUR
391 #endif /*__ardour_io_h__ */