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 #include "libardour-config.h"
30 #include <boost/algorithm/string.hpp>
32 #include "pbd/xml++.h"
33 #include "pbd/enumwriter.h"
34 #include "pbd/memento_command.h"
35 #include "pbd/stacktrace.h"
36 #include "pbd/convert.h"
37 #include "pbd/boost_debug.h"
39 #include "ardour/amp.h"
40 #include "ardour/audio_buffer.h"
41 #include "ardour/audio_track.h"
42 #include "ardour/audio_port.h"
43 #include "ardour/audioengine.h"
44 #include "ardour/buffer.h"
45 #include "ardour/buffer_set.h"
46 #include "ardour/capturing_processor.h"
47 #include "ardour/debug.h"
48 #include "ardour/delivery.h"
49 #include "ardour/internal_return.h"
50 #include "ardour/internal_send.h"
51 #include "ardour/meter.h"
52 #include "ardour/delayline.h"
53 #include "ardour/midi_buffer.h"
54 #include "ardour/midi_port.h"
55 #include "ardour/monitor_processor.h"
56 #include "ardour/pannable.h"
57 #include "ardour/panner.h"
58 #include "ardour/panner_shell.h"
59 #include "ardour/plugin_insert.h"
60 #include "ardour/port.h"
61 #include "ardour/port_insert.h"
62 #include "ardour/processor.h"
63 #include "ardour/profile.h"
64 #include "ardour/route.h"
65 #include "ardour/route_group.h"
66 #include "ardour/send.h"
67 #include "ardour/session.h"
68 #include "ardour/unknown_processor.h"
69 #include "ardour/utils.h"
74 using namespace ARDOUR;
77 PBD::Signal0<void> Route::SyncOrderKeys;
78 PBD::Signal0<void> Route::RemoteControlIDChange;
80 Route::Route (Session& sess, string name, Flag flg, DataType default_type)
81 : SessionObject (sess, name)
83 , GraphNode (sess._process_graph)
86 , _signal_latency_at_amp_position (0)
87 , _signal_latency_at_trim_position (0)
90 , _pending_process_reorder (0)
92 , _pending_declick (true)
93 , _meter_point (MeterPostFader)
94 , _pending_meter_point (MeterPostFader)
95 , _meter_type (MeterPeak)
97 , _soloed_by_others_upstream (0)
98 , _soloed_by_others_downstream (0)
99 , _solo_isolated (false)
100 , _solo_isolated_by_upstream (0)
101 , _denormal_protection (false)
104 , _declickable (false)
105 , _mute_master (new MuteMaster (sess, name))
106 , _have_internal_generator (false)
108 , _default_type (default_type)
110 , _has_order_key (false)
111 , _remote_control_id (0)
113 , _in_configure_processors (false)
114 , _initial_io_setup (false)
115 , _custom_meter_position_noted (false)
117 processor_max_streams.reset();
123 /* set default meter type */
125 _meter_type = Config->get_meter_type_master ();
127 else if (dynamic_cast<Track*>(this)) {
128 _meter_type = Config->get_meter_type_track ();
130 _meter_type = Config->get_meter_type_bus ();
133 /* add standard controls */
135 _solo_control.reset (new SoloControllable (X_("solo"), shared_from_this ()));
136 _mute_control.reset (new MuteControllable (X_("mute"), shared_from_this ()));
138 _solo_control->set_flags (Controllable::Flag (_solo_control->flags() | Controllable::Toggle));
139 _mute_control->set_flags (Controllable::Flag (_mute_control->flags() | Controllable::Toggle));
141 add_control (_solo_control);
142 add_control (_mute_control);
146 if (!(_flags & Route::MonitorOut)) {
147 _pannable.reset (new Pannable (_session));
150 /* input and output objects */
152 _input.reset (new IO (_session, _name, IO::Input, _default_type));
153 _output.reset (new IO (_session, _name, IO::Output, _default_type));
155 _input->changed.connect_same_thread (*this, boost::bind (&Route::input_change_handler, this, _1, _2));
156 _input->PortCountChanging.connect_same_thread (*this, boost::bind (&Route::input_port_count_changing, this, _1));
158 _output->changed.connect_same_thread (*this, boost::bind (&Route::output_change_handler, this, _1, _2));
159 _output->PortCountChanging.connect_same_thread (*this, boost::bind (&Route::output_port_count_changing, this, _1));
161 #if 0 // not used - just yet
162 if (!is_master() && !is_monitor() && !is_auditioner()) {
163 _delayline.reset (new DelayLine (_session, _name));
164 add_processor (_delayline, PreFader);
168 /* add amp processor */
170 _amp.reset (new Amp (_session));
171 add_processor (_amp, PostFader);
174 _trim.reset (new Amp (_session, "trim"));
175 _trim->set_display_to_user (false);
177 if (dynamic_cast<AudioTrack*>(this)) {
178 /* we can't do this in the AudioTrack's constructor
179 * because _trim does not exit then
183 else if (!dynamic_cast<Track*>(this) && ! ( is_monitor() || is_auditioner() )) {
188 /* create standard processors: meter, main outs, monitor out;
189 they will be added to _processors by setup_invisible_processors ()
192 _meter.reset (new PeakMeter (_session, _name));
193 _meter->set_owner (this);
194 _meter->set_display_to_user (false);
197 _main_outs.reset (new Delivery (_session, _output, _pannable, _mute_master, _name, Delivery::Main));
198 _main_outs->activate ();
201 /* where we listen to tracks */
202 _intreturn.reset (new InternalReturn (_session));
203 _intreturn->activate ();
205 /* the thing that provides proper control over a control/monitor/listen bus
206 (such as per-channel cut, dim, solo, invert, etc).
208 _monitor_control.reset (new MonitorProcessor (_session));
209 _monitor_control->activate ();
212 if (is_master() || is_monitor() || is_auditioner()) {
213 _mute_master->set_solo_ignore (true);
216 /* now that we have _meter, its safe to connect to this */
219 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
220 configure_processors (0);
228 DEBUG_TRACE (DEBUG::Destruction, string_compose ("route %1 destructor\n", _name));
230 /* do this early so that we don't get incoming signals as we are going through destruction
235 /* don't use clear_processors here, as it depends on the session which may
236 be half-destroyed by now
239 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
240 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
241 (*i)->drop_references ();
244 _processors.clear ();
248 Route::set_remote_control_id (uint32_t id, bool notify_class_listeners)
250 if (Config->get_remote_model() != UserOrdered) {
254 set_remote_control_id_internal (id, notify_class_listeners);
258 Route::set_remote_control_id_internal (uint32_t id, bool notify_class_listeners)
260 /* force IDs for master/monitor busses and prevent
261 any other route from accidentally getting these IDs
262 (i.e. legacy sessions)
265 if (is_master() && id != MasterBusRemoteControlID) {
266 id = MasterBusRemoteControlID;
269 if (is_monitor() && id != MonitorBusRemoteControlID) {
270 id = MonitorBusRemoteControlID;
277 /* don't allow it to collide */
279 if (!is_master () && !is_monitor() &&
280 (id == MasterBusRemoteControlID || id == MonitorBusRemoteControlID)) {
281 id += MonitorBusRemoteControlID;
284 if (id != remote_control_id()) {
285 _remote_control_id = id;
286 RemoteControlIDChanged ();
288 if (notify_class_listeners) {
289 RemoteControlIDChange ();
295 Route::remote_control_id() const
298 return MasterBusRemoteControlID;
302 return MonitorBusRemoteControlID;
305 return _remote_control_id;
309 Route::has_order_key () const
311 return _has_order_key;
315 Route::order_key () const
321 Route::set_remote_control_id_explicit (uint32_t rid)
323 if (is_master() || is_monitor() || is_auditioner()) {
324 /* hard-coded remote IDs, or no remote ID */
328 if (_remote_control_id != rid) {
329 DEBUG_TRACE (DEBUG::OrderKeys, string_compose ("%1: set edit-based RID to %2\n", name(), rid));
330 _remote_control_id = rid;
331 RemoteControlIDChanged (); /* EMIT SIGNAL (per-route) */
334 /* don't emit the class-level RID signal RemoteControlIDChange here,
335 leave that to the entity that changed the order key, so that we
336 don't get lots of emissions for no good reasons (e.g. when changing
337 all route order keys).
339 See Session::sync_remote_id_from_order_keys() for the (primary|only)
340 spot where that is emitted.
345 Route::set_order_key (uint32_t n)
347 _has_order_key = true;
349 if (_order_key == n) {
355 DEBUG_TRACE (DEBUG::OrderKeys, string_compose ("%1 order key set to %2\n",
356 name(), order_key ()));
358 _session.set_dirty ();
362 Route::ensure_track_or_route_name(string name, Session &session)
364 string newname = name;
366 while (!session.io_name_is_legal (newname)) {
367 newname = bump_name_once (newname, '.');
374 Route::inc_gain (gain_t fraction, void *src)
376 _amp->inc_gain (fraction, src);
380 Route::set_gain (gain_t val, void *src)
382 if (src != 0 && _route_group && src != _route_group && _route_group->is_active() && _route_group->is_gain()) {
384 if (_route_group->is_relative()) {
386 gain_t usable_gain = _amp->gain();
387 if (usable_gain < 0.000001f) {
388 usable_gain = 0.000001f;
392 if (delta < 0.000001f) {
396 delta -= usable_gain;
401 gain_t factor = delta / usable_gain;
404 factor = _route_group->get_max_factor(factor);
405 if (factor == 0.0f) {
406 _amp->gain_control()->Changed(); /* EMIT SIGNAL */
410 factor = _route_group->get_min_factor(factor);
411 if (factor == 0.0f) {
412 _amp->gain_control()->Changed(); /* EMIT SIGNAL */
417 _route_group->foreach_route (boost::bind (&Route::inc_gain, _1, factor, _route_group));
421 _route_group->foreach_route (boost::bind (&Route::set_gain, _1, val, _route_group));
427 if (val == _amp->gain()) {
431 _amp->set_gain (val, src);
435 Route::inc_trim (gain_t fraction, void *src)
437 _trim->inc_gain (fraction, src);
441 Route::set_trim (gain_t val, void * /* src */)
443 // TODO route group, see set_gain()
444 _trim->set_gain (val, 0);
448 Route::maybe_declick (BufferSet&, framecnt_t, int)
450 /* this is the "bus" implementation and they never declick.
455 /** Process this route for one (sub) cycle (process thread)
457 * @param bufs Scratch buffers to use for the signal path
458 * @param start_frame Initial transport frame
459 * @param end_frame Final transport frame
460 * @param nframes Number of frames to output (to ports)
462 * Note that (end_frame - start_frame) may not be equal to nframes when the
463 * transport speed isn't 1.0 (eg varispeed).
466 Route::process_output_buffers (BufferSet& bufs,
467 framepos_t start_frame, framepos_t end_frame, pframes_t nframes,
468 int declick, bool gain_automation_ok)
470 /* Caller must hold process lock */
471 assert (!AudioEngine::instance()->process_lock().trylock());
473 Glib::Threads::RWLock::ReaderLock lm (_processor_lock, Glib::Threads::TRY_LOCK);
475 // can this actually happen? functions calling process_output_buffers()
476 // already take a reader-lock.
477 bufs.silence (nframes, 0);
481 /* figure out if we're going to use gain automation */
482 if (gain_automation_ok) {
483 _amp->set_gain_automation_buffer (_session.gain_automation_buffer ());
484 _amp->setup_gain_automation (
485 start_frame + _signal_latency_at_amp_position,
486 end_frame + _signal_latency_at_amp_position,
489 _trim->set_gain_automation_buffer (_session.trim_automation_buffer ());
490 _trim->setup_gain_automation (
491 start_frame + _signal_latency_at_trim_position,
492 end_frame + _signal_latency_at_trim_position,
495 _amp->apply_gain_automation (false);
496 _trim->apply_gain_automation (false);
499 /* Tell main outs what to do about monitoring. We do this so that
500 on a transition between monitoring states we get a de-clicking gain
501 change in the _main_outs delivery.
503 bool silence = monitoring_state () == MonitoringSilence;
505 //but we override this in the case where we have an internal generator
506 if ( _have_internal_generator )
509 _main_outs->no_outs_cuz_we_no_monitor (silence);
511 /* -------------------------------------------------------------------------------------------
512 GLOBAL DECLICK (for transport changes etc.)
513 ----------------------------------------------------------------------------------------- */
515 maybe_declick (bufs, nframes, declick);
516 _pending_declick = 0;
518 /* -------------------------------------------------------------------------------------------
519 DENORMAL CONTROL/PHASE INVERT
520 ----------------------------------------------------------------------------------------- */
522 if (_phase_invert.any ()) {
526 if (_denormal_protection || Config->get_denormal_protection()) {
528 for (BufferSet::audio_iterator i = bufs.audio_begin(); i != bufs.audio_end(); ++i, ++chn) {
529 Sample* const sp = i->data();
531 if (_phase_invert[chn]) {
532 for (pframes_t nx = 0; nx < nframes; ++nx) {
537 for (pframes_t nx = 0; nx < nframes; ++nx) {
545 for (BufferSet::audio_iterator i = bufs.audio_begin(); i != bufs.audio_end(); ++i, ++chn) {
546 Sample* const sp = i->data();
548 if (_phase_invert[chn]) {
549 for (pframes_t nx = 0; nx < nframes; ++nx) {
558 if (_denormal_protection || Config->get_denormal_protection()) {
560 for (BufferSet::audio_iterator i = bufs.audio_begin(); i != bufs.audio_end(); ++i) {
561 Sample* const sp = i->data();
562 for (pframes_t nx = 0; nx < nframes; ++nx) {
570 /* -------------------------------------------------------------------------------------------
572 ----------------------------------------------------------------------------------------- */
574 /* set this to be true if the meter will already have been ::run() earlier */
575 bool const meter_already_run = metering_state() == MeteringInput;
577 framecnt_t latency = 0;
579 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
581 if (meter_already_run && boost::dynamic_pointer_cast<PeakMeter> (*i)) {
582 /* don't ::run() the meter, otherwise it will have its previous peak corrupted */
587 /* if it has any inputs, make sure they match */
588 if (boost::dynamic_pointer_cast<UnknownProcessor> (*i) == 0 && (*i)->input_streams() != ChanCount::ZERO) {
589 if (bufs.count() != (*i)->input_streams()) {
591 DEBUG::Processors, string_compose (
592 "input port mismatch %1 bufs = %2 input for %3 = %4\n",
593 _name, bufs.count(), (*i)->name(), (*i)->input_streams()
600 /* should we NOT run plugins here if the route is inactive?
601 do we catch route != active somewhere higher?
604 if (boost::dynamic_pointer_cast<Send>(*i) != 0) {
605 boost::dynamic_pointer_cast<Send>(*i)->set_delay_in(_signal_latency - latency);
608 (*i)->run (bufs, start_frame - latency, end_frame - latency, nframes, *i != _processors.back());
609 bufs.set_count ((*i)->output_streams());
611 if ((*i)->active ()) {
612 latency += (*i)->signal_latency ();
618 Route::bounce_process (BufferSet& buffers, framepos_t start, framecnt_t nframes,
619 boost::shared_ptr<Processor> endpoint,
620 bool include_endpoint, bool for_export, bool for_freeze)
622 /* If no processing is required, there's no need to go any further. */
623 if (!endpoint && !include_endpoint) {
627 framecnt_t latency = bounce_get_latency(_amp, false, for_export, for_freeze);
628 _amp->set_gain_automation_buffer (_session.gain_automation_buffer ());
629 _amp->setup_gain_automation (start - latency, start - latency + nframes, nframes);
631 /* trim is always at the top, for bounce no latency compensation is needed */
632 _trim->set_gain_automation_buffer (_session.trim_automation_buffer ());
633 _trim->setup_gain_automation (start, start + nframes, nframes);
636 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
638 if (!include_endpoint && (*i) == endpoint) {
642 /* if we're not exporting, stop processing if we come across a routing processor. */
643 if (!for_export && boost::dynamic_pointer_cast<PortInsert>(*i)) {
646 if (!for_export && for_freeze && (*i)->does_routing() && (*i)->active()) {
650 /* don't run any processors that does routing.
651 * oh, and don't bother with the peak meter either.
653 if (!(*i)->does_routing() && !boost::dynamic_pointer_cast<PeakMeter>(*i)) {
654 (*i)->run (buffers, start - latency, start - latency + nframes, nframes, true);
655 buffers.set_count ((*i)->output_streams());
656 latency += (*i)->signal_latency ();
659 if ((*i) == endpoint) {
666 Route::bounce_get_latency (boost::shared_ptr<Processor> endpoint,
667 bool include_endpoint, bool for_export, bool for_freeze) const
669 framecnt_t latency = 0;
670 if (!endpoint && !include_endpoint) {
674 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
675 if (!include_endpoint && (*i) == endpoint) {
678 if (!for_export && boost::dynamic_pointer_cast<PortInsert>(*i)) {
681 if (!for_export && for_freeze && (*i)->does_routing() && (*i)->active()) {
684 if (!(*i)->does_routing() && !boost::dynamic_pointer_cast<PeakMeter>(*i)) {
685 latency += (*i)->signal_latency ();
687 if ((*i) == endpoint) {
695 Route::bounce_get_output_streams (ChanCount &cc, boost::shared_ptr<Processor> endpoint,
696 bool include_endpoint, bool for_export, bool for_freeze) const
698 if (!endpoint && !include_endpoint) {
702 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
703 if (!include_endpoint && (*i) == endpoint) {
706 if (!for_export && boost::dynamic_pointer_cast<PortInsert>(*i)) {
709 if (!for_export && for_freeze && (*i)->does_routing() && (*i)->active()) {
712 if (!(*i)->does_routing() && !boost::dynamic_pointer_cast<PeakMeter>(*i)) {
713 cc = (*i)->output_streams();
715 if ((*i) == endpoint) {
723 Route::n_process_buffers ()
725 return max (_input->n_ports(), processor_max_streams);
729 Route::monitor_run (framepos_t start_frame, framepos_t end_frame, pframes_t nframes, int declick)
731 assert (is_monitor());
732 BufferSet& bufs (_session.get_route_buffers (n_process_buffers()));
733 fill_buffers_with_input (bufs, _input, nframes);
734 passthru (bufs, start_frame, end_frame, nframes, declick);
738 Route::passthru (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame, pframes_t nframes, int declick)
742 if (is_monitor() && _session.listening() && !_session.is_auditioning()) {
744 /* control/monitor bus ignores input ports when something is
745 feeding the listen "stream". data will "arrive" into the
746 route from the intreturn processor element.
749 bufs.silence (nframes, 0);
752 write_out_of_band_data (bufs, start_frame, end_frame, nframes);
753 process_output_buffers (bufs, start_frame, end_frame, nframes, declick, true);
757 Route::passthru_silence (framepos_t start_frame, framepos_t end_frame, pframes_t nframes, int declick)
759 BufferSet& bufs (_session.get_route_buffers (n_process_buffers(), true));
761 bufs.set_count (_input->n_ports());
762 write_out_of_band_data (bufs, start_frame, end_frame, nframes);
763 process_output_buffers (bufs, start_frame, end_frame, nframes, declick, false);
767 Route::set_listen (bool yn, void* src)
773 if (_route_group && src != _route_group && _route_group->is_active() && _route_group->is_solo()) {
774 _route_group->foreach_route (boost::bind (&Route::set_listen, _1, yn, _route_group));
779 if (yn != _monitor_send->active()) {
781 _monitor_send->activate ();
782 _mute_master->set_soloed (true);
784 _monitor_send->deactivate ();
785 _mute_master->set_soloed (false);
788 listen_changed (src); /* EMIT SIGNAL */
794 Route::listening_via_monitor () const
797 return _monitor_send->active ();
804 Route::set_solo_safe (bool yn, void *src)
806 if (_solo_safe != yn) {
808 solo_safe_changed (src);
813 Route::solo_safe() const
819 Route::set_solo (bool yn, void *src)
822 DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 ignore solo change due to solo-safe\n", name()));
826 if (is_master() || is_monitor() || is_auditioner()) {
827 DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 ignore solo change (master, monitor or auditioner)\n", name()));
831 if (_route_group && src != _route_group && _route_group->is_active() && _route_group->is_solo()) {
832 _route_group->foreach_route (boost::bind (&Route::set_solo, _1, yn, _route_group));
836 DEBUG_TRACE (DEBUG::Solo, string_compose ("%1: set solo => %2, src: %3 grp ? %4 currently self-soloed ? %5\n",
837 name(), yn, src, (src == _route_group), self_soloed()));
839 if (self_soloed() != yn) {
841 set_mute_master_solo ();
842 solo_changed (true, src); /* EMIT SIGNAL */
843 _solo_control->Changed (); /* EMIT SIGNAL */
846 /* XXX TRACKS DEVELOPERS: THIS LOGIC SUGGESTS THAT YOU ARE NOT AWARE OF
847 Config->get_solo_mute_overrride().
850 if (yn && Profile->get_trx()) {
851 set_mute (false, src);
856 Route::set_self_solo (bool yn)
858 DEBUG_TRACE (DEBUG::Solo, string_compose ("%1: set SELF solo => %2\n", name(), yn));
863 Route::mod_solo_by_others_upstream (int32_t delta)
866 DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 ignore solo-by-upstream due to solo-safe\n", name()));
870 DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 mod solo-by-upstream by %2, current up = %3 down = %4\n",
871 name(), delta, _soloed_by_others_upstream, _soloed_by_others_downstream));
873 uint32_t old_sbu = _soloed_by_others_upstream;
876 if (_soloed_by_others_upstream >= (uint32_t) abs (delta)) {
877 _soloed_by_others_upstream += delta;
879 _soloed_by_others_upstream = 0;
882 _soloed_by_others_upstream += delta;
885 DEBUG_TRACE (DEBUG::Solo, string_compose (
886 "%1 SbU delta %2 = %3 old = %4 sbd %5 ss %6 exclusive %7\n",
887 name(), delta, _soloed_by_others_upstream, old_sbu,
888 _soloed_by_others_downstream, _self_solo, Config->get_exclusive_solo()));
890 /* push the inverse solo change to everything that feeds us.
892 This is important for solo-within-group. When we solo 1 track out of N that
893 feed a bus, that track will cause mod_solo_by_upstream (+1) to be called
894 on the bus. The bus then needs to call mod_solo_by_downstream (-1) on all
895 tracks that feed it. This will silence them if they were audible because
896 of a bus solo, but the newly soloed track will still be audible (because
899 but .. do this only when we are being told to solo-by-upstream (i.e delta = +1),
903 if ((_self_solo || _soloed_by_others_downstream) &&
904 ((old_sbu == 0 && _soloed_by_others_upstream > 0) ||
905 (old_sbu > 0 && _soloed_by_others_upstream == 0))) {
907 if (delta > 0 || !Config->get_exclusive_solo()) {
908 DEBUG_TRACE (DEBUG::Solo, "\t ... INVERT push\n");
909 for (FedBy::iterator i = _fed_by.begin(); i != _fed_by.end(); ++i) {
910 boost::shared_ptr<Route> sr = i->r.lock();
912 sr->mod_solo_by_others_downstream (-delta);
918 set_mute_master_solo ();
919 solo_changed (false, this);
923 Route::mod_solo_by_others_downstream (int32_t delta)
926 DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 ignore solo-by-downstream due to solo safe\n", name()));
930 DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 mod solo-by-downstream by %2, current up = %3 down = %4\n",
931 name(), delta, _soloed_by_others_upstream, _soloed_by_others_downstream));
934 if (_soloed_by_others_downstream >= (uint32_t) abs (delta)) {
935 _soloed_by_others_downstream += delta;
937 _soloed_by_others_downstream = 0;
940 _soloed_by_others_downstream += delta;
943 DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 SbD delta %2 = %3\n", name(), delta, _soloed_by_others_downstream));
945 set_mute_master_solo ();
946 solo_changed (false, this);
950 Route::set_mute_master_solo ()
952 _mute_master->set_soloed (self_soloed() || soloed_by_others_downstream() || soloed_by_others_upstream());
956 Route::mod_solo_isolated_by_upstream (bool yn, void* src)
958 bool old = solo_isolated ();
961 if (_solo_isolated_by_upstream >= 1) {
962 _solo_isolated_by_upstream--;
964 _solo_isolated_by_upstream = 0;
967 _solo_isolated_by_upstream++;
970 if (solo_isolated() != old) {
971 /* solo isolated status changed */
972 _mute_master->set_solo_ignore (yn);
973 solo_isolated_changed (src);
978 Route::set_solo_isolated (bool yn, void *src)
980 if (is_master() || is_monitor() || is_auditioner()) {
984 if (_route_group && src != _route_group && _route_group->is_active() && _route_group->is_solo()) {
985 _route_group->foreach_route (boost::bind (&Route::set_solo_isolated, _1, yn, _route_group));
989 bool changed = false;
992 if (_solo_isolated == false) {
993 _mute_master->set_solo_ignore (true);
996 _solo_isolated = true;
998 if (_solo_isolated == true) {
999 _solo_isolated = false;
1000 _mute_master->set_solo_ignore (false);
1010 /* forward propagate solo-isolate status to everything fed by this route, but not those via sends only */
1012 boost::shared_ptr<RouteList> routes = _session.get_routes ();
1013 for (RouteList::iterator i = routes->begin(); i != routes->end(); ++i) {
1015 if ((*i).get() == this || (*i)->is_master() || (*i)->is_monitor() || (*i)->is_auditioner()) {
1020 bool does_feed = feeds (*i, &sends_only);
1022 if (does_feed && !sends_only) {
1023 (*i)->mod_solo_isolated_by_upstream (yn, src);
1027 /* XXX should we back-propagate as well? (April 2010: myself and chris goddard think not) */
1029 solo_isolated_changed (src);
1033 Route::solo_isolated () const
1035 return (_solo_isolated == true) || (_solo_isolated_by_upstream > 0);
1039 Route::set_mute_points (MuteMaster::MutePoint mp)
1041 _mute_master->set_mute_points (mp);
1042 mute_points_changed (); /* EMIT SIGNAL */
1044 if (_mute_master->muted_by_self()) {
1045 mute_changed (this); /* EMIT SIGNAL */
1046 _mute_control->Changed (); /* EMIT SIGNAL */
1051 Route::set_mute (bool yn, void *src)
1053 if (_route_group && src != _route_group && _route_group->is_active() && _route_group->is_mute()) {
1054 _route_group->foreach_route (boost::bind (&Route::set_mute, _1, yn, _route_group));
1058 if (muted() != yn) {
1059 _mute_master->set_muted_by_self (yn);
1060 /* allow any derived classes to respond to the mute change
1061 before anybody else knows about it.
1064 /* tell everyone else */
1065 mute_changed (src); /* EMIT SIGNAL */
1066 _mute_control->Changed (); /* EMIT SIGNAL */
1071 Route::muted () const
1073 return _mute_master->muted_by_self();
1077 Route::muted_by_others () const
1079 //master is never muted by others
1083 //now check to see if something is soloed (and I am not)
1084 return (_session.soloing() && !self_soloed() && !solo_isolated());
1089 dump_processors(const string& name, const list<boost::shared_ptr<Processor> >& procs)
1091 cerr << name << " {" << endl;
1092 for (list<boost::shared_ptr<Processor> >::const_iterator p = procs.begin();
1093 p != procs.end(); ++p) {
1094 cerr << "\t" << (*p)->name() << " ID = " << (*p)->id() << " @ " << (*p) << endl;
1096 cerr << "}" << endl;
1100 /** Supposing that we want to insert a Processor at a given Placement, return
1101 * the processor to add the new one before (or 0 to add at the end).
1103 boost::shared_ptr<Processor>
1104 Route::before_processor_for_placement (Placement p)
1106 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
1108 ProcessorList::iterator loc;
1110 if (p == PreFader) {
1111 /* generic pre-fader: insert immediately before the amp */
1112 loc = find (_processors.begin(), _processors.end(), _amp);
1114 /* generic post-fader: insert right before the main outs */
1115 loc = find (_processors.begin(), _processors.end(), _main_outs);
1118 return loc != _processors.end() ? *loc : boost::shared_ptr<Processor> ();
1121 /** Supposing that we want to insert a Processor at a given index, return
1122 * the processor to add the new one before (or 0 to add at the end).
1124 boost::shared_ptr<Processor>
1125 Route::before_processor_for_index (int index)
1128 return boost::shared_ptr<Processor> ();
1131 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
1133 ProcessorList::iterator i = _processors.begin ();
1135 while (i != _processors.end() && j < index) {
1136 if ((*i)->display_to_user()) {
1143 return (i != _processors.end() ? *i : boost::shared_ptr<Processor> ());
1146 /** Add a processor either pre- or post-fader
1147 * @return 0 on success, non-0 on failure.
1150 Route::add_processor (boost::shared_ptr<Processor> processor, Placement placement, ProcessorStreams* err, bool activation_allowed)
1152 return add_processor (processor, before_processor_for_placement (placement), err, activation_allowed);
1156 /** Add a processor to a route such that it ends up with a given index into the visible processors.
1157 * @param index Index to add the processor at, or -1 to add at the end of the list.
1158 * @return 0 on success, non-0 on failure.
1161 Route::add_processor_by_index (boost::shared_ptr<Processor> processor, int index, ProcessorStreams* err, bool activation_allowed)
1163 return add_processor (processor, before_processor_for_index (index), err, activation_allowed);
1166 /** Add a processor to the route.
1167 * @param before An existing processor in the list, or 0; the new processor will be inserted immediately before it (or at the end).
1168 * @return 0 on success, non-0 on failure.
1171 Route::add_processor (boost::shared_ptr<Processor> processor, boost::shared_ptr<Processor> before, ProcessorStreams* err, bool activation_allowed)
1173 assert (processor != _meter);
1174 assert (processor != _main_outs);
1176 DEBUG_TRACE (DEBUG::Processors, string_compose (
1177 "%1 adding processor %2\n", name(), processor->name()));
1179 if (!AudioEngine::instance()->connected() || !processor) {
1184 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
1185 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
1186 ProcessorState pstate (this);
1188 boost::shared_ptr<PluginInsert> pi;
1189 boost::shared_ptr<PortInsert> porti;
1191 if (processor == _amp) {
1192 /* Ensure that only one amp is in the list at any time */
1193 ProcessorList::iterator check = find (_processors.begin(), _processors.end(), processor);
1194 if (check != _processors.end()) {
1195 if (before == _amp) {
1196 /* Already in position; all is well */
1199 _processors.erase (check);
1204 assert (find (_processors.begin(), _processors.end(), processor) == _processors.end ());
1206 ProcessorList::iterator loc;
1208 /* inserting before a processor; find it */
1209 loc = find (_processors.begin(), _processors.end(), before);
1210 if (loc == _processors.end ()) {
1215 /* inserting at end */
1216 loc = _processors.end ();
1219 _processors.insert (loc, processor);
1220 processor->set_owner (this);
1222 // Set up processor list channels. This will set processor->[input|output]_streams(),
1223 // configure redirect ports properly, etc.
1226 if (configure_processors_unlocked (err)) {
1228 configure_processors_unlocked (0); // it worked before we tried to add it ...
1233 if ((pi = boost::dynamic_pointer_cast<PluginInsert>(processor)) != 0) {
1235 if (pi->has_no_inputs ()) {
1236 /* generator plugin */
1237 _have_internal_generator = true;
1242 if (activation_allowed && (!_session.get_disable_all_loaded_plugins () || !processor->display_to_user ())) {
1243 processor->activate ();
1246 processor->ActiveChanged.connect_same_thread (*this, boost::bind (&Session::update_latency_compensation, &_session, false));
1248 _output->set_user_latency (0);
1251 reset_instrument_info ();
1252 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
1253 set_processor_positions ();
1259 Route::add_processor_from_xml_2X (const XMLNode& node, int version)
1261 const XMLProperty *prop;
1264 boost::shared_ptr<Processor> processor;
1266 /* bit of a hack: get the `placement' property from the <Redirect> tag here
1267 so that we can add the processor in the right place (pre/post-fader)
1270 XMLNodeList const & children = node.children ();
1271 XMLNodeList::const_iterator i = children.begin ();
1273 while (i != children.end() && (*i)->name() != X_("Redirect")) {
1277 Placement placement = PreFader;
1279 if (i != children.end()) {
1280 if ((prop = (*i)->property (X_("placement"))) != 0) {
1281 placement = Placement (string_2_enum (prop->value(), placement));
1285 if (node.name() == "Insert") {
1287 if ((prop = node.property ("type")) != 0) {
1289 if (prop->value() == "ladspa" || prop->value() == "Ladspa" ||
1290 prop->value() == "lv2" ||
1291 prop->value() == "windows-vst" ||
1292 prop->value() == "lxvst" ||
1293 prop->value() == "audiounit") {
1295 processor.reset (new PluginInsert (_session));
1299 processor.reset (new PortInsert (_session, _pannable, _mute_master));
1304 } else if (node.name() == "Send") {
1306 boost::shared_ptr<Pannable> sendpan (new Pannable (_session));
1307 processor.reset (new Send (_session, sendpan, _mute_master));
1311 error << string_compose(_("unknown Processor type \"%1\"; ignored"), node.name()) << endmsg;
1315 if (processor->set_state (node, version)) {
1319 //A2 uses the "active" flag in the toplevel redirect node, not in the child plugin/IO
1320 if (i != children.end()) {
1321 if ((prop = (*i)->property (X_("active"))) != 0) {
1322 if ( string_is_affirmative (prop->value()) && (!_session.get_disable_all_loaded_plugins () || !processor->display_to_user () ) )
1323 processor->activate();
1325 processor->deactivate();
1329 return (add_processor (processor, placement, 0, false) == 0);
1332 catch (failed_constructor &err) {
1333 warning << _("processor could not be created. Ignored.") << endmsg;
1339 Route::add_processors (const ProcessorList& others, boost::shared_ptr<Processor> before, ProcessorStreams* err)
1341 /* NOTE: this is intended to be used ONLY when copying
1342 processors from another Route. Hence the subtle
1343 differences between this and ::add_processor()
1346 ProcessorList::iterator loc;
1349 loc = find(_processors.begin(), _processors.end(), before);
1351 /* nothing specified - at end */
1352 loc = _processors.end ();
1355 if (!_session.engine().connected()) {
1359 if (others.empty()) {
1364 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
1365 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
1366 ProcessorState pstate (this);
1368 for (ProcessorList::const_iterator i = others.begin(); i != others.end(); ++i) {
1374 boost::shared_ptr<PluginInsert> pi;
1376 if ((pi = boost::dynamic_pointer_cast<PluginInsert>(*i)) != 0) {
1380 _processors.insert (loc, *i);
1381 (*i)->set_owner (this);
1383 if ((*i)->active()) {
1387 /* Think: does this really need to be called for every processor in the loop? */
1389 if (configure_processors_unlocked (err)) {
1391 configure_processors_unlocked (0); // it worked before we tried to add it ...
1396 (*i)->ActiveChanged.connect_same_thread (*this, boost::bind (&Session::update_latency_compensation, &_session, false));
1399 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
1400 boost::shared_ptr<PluginInsert> pi;
1402 if ((pi = boost::dynamic_pointer_cast<PluginInsert>(*i)) != 0) {
1403 if (pi->has_no_inputs ()) {
1404 _have_internal_generator = true;
1410 _output->set_user_latency (0);
1413 reset_instrument_info ();
1414 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
1415 set_processor_positions ();
1421 Route::placement_range(Placement p, ProcessorList::iterator& start, ProcessorList::iterator& end)
1423 if (p == PreFader) {
1424 start = _processors.begin();
1425 end = find(_processors.begin(), _processors.end(), _amp);
1427 start = find(_processors.begin(), _processors.end(), _amp);
1429 end = _processors.end();
1433 /** Turn off all processors with a given placement
1434 * @param p Placement of processors to disable
1437 Route::disable_processors (Placement p)
1439 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
1441 ProcessorList::iterator start, end;
1442 placement_range(p, start, end);
1444 for (ProcessorList::iterator i = start; i != end; ++i) {
1445 (*i)->deactivate ();
1448 _session.set_dirty ();
1451 /** Turn off all redirects
1454 Route::disable_processors ()
1456 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
1458 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
1459 (*i)->deactivate ();
1462 _session.set_dirty ();
1465 /** Turn off all redirects with a given placement
1466 * @param p Placement of redirects to disable
1469 Route::disable_plugins (Placement p)
1471 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
1473 ProcessorList::iterator start, end;
1474 placement_range(p, start, end);
1476 for (ProcessorList::iterator i = start; i != end; ++i) {
1477 if (boost::dynamic_pointer_cast<PluginInsert> (*i)) {
1478 (*i)->deactivate ();
1482 _session.set_dirty ();
1485 /** Turn off all plugins
1488 Route::disable_plugins ()
1490 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
1492 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
1493 if (boost::dynamic_pointer_cast<PluginInsert> (*i)) {
1494 (*i)->deactivate ();
1498 _session.set_dirty ();
1503 Route::ab_plugins (bool forward)
1505 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
1509 /* forward = turn off all active redirects, and mark them so that the next time
1510 we go the other way, we will revert them
1513 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
1514 if (!boost::dynamic_pointer_cast<PluginInsert> (*i)) {
1518 if ((*i)->active()) {
1519 (*i)->deactivate ();
1520 (*i)->set_next_ab_is_active (true);
1522 (*i)->set_next_ab_is_active (false);
1528 /* backward = if the redirect was marked to go active on the next ab, do so */
1530 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
1532 if (!boost::dynamic_pointer_cast<PluginInsert> (*i)) {
1536 if ((*i)->get_next_ab_is_active()) {
1539 (*i)->deactivate ();
1544 _session.set_dirty ();
1548 /** Remove processors with a given placement.
1549 * @param p Placement of processors to remove.
1552 Route::clear_processors (Placement p)
1554 if (!_session.engine().connected()) {
1558 bool already_deleting = _session.deletion_in_progress();
1559 if (!already_deleting) {
1560 _session.set_deletion_in_progress();
1564 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
1565 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
1566 ProcessorList new_list;
1567 ProcessorStreams err;
1568 bool seen_amp = false;
1570 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
1576 if ((*i) == _amp || (*i) == _meter || (*i) == _main_outs || (*i) == _delayline || (*i) == _trim) {
1578 /* you can't remove these */
1580 new_list.push_back (*i);
1587 new_list.push_back (*i);
1590 (*i)->drop_references ();
1598 (*i)->drop_references ();
1601 new_list.push_back (*i);
1608 _processors = new_list;
1609 configure_processors_unlocked (&err); // this can't fail
1612 processor_max_streams.reset();
1613 _have_internal_generator = false;
1614 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
1615 set_processor_positions ();
1617 reset_instrument_info ();
1619 if (!already_deleting) {
1620 _session.clear_deletion_in_progress();
1625 Route::remove_processor (boost::shared_ptr<Processor> processor, ProcessorStreams* err, bool need_process_lock)
1627 // TODO once the export point can be configured properly, do something smarter here
1628 if (processor == _capturing_processor) {
1629 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock (), Glib::Threads::NOT_LOCK);
1630 if (need_process_lock) {
1634 _capturing_processor.reset();
1636 if (need_process_lock) {
1641 /* these can never be removed */
1643 if (processor == _amp || processor == _meter || processor == _main_outs || processor == _delayline || processor == _trim) {
1647 if (!_session.engine().connected()) {
1651 processor_max_streams.reset();
1654 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock (), Glib::Threads::NOT_LOCK);
1655 if (need_process_lock) {
1659 /* Caller must hold process lock */
1660 assert (!AudioEngine::instance()->process_lock().trylock());
1662 Glib::Threads::RWLock::WriterLock lm (_processor_lock); // XXX deadlock after export
1664 ProcessorState pstate (this);
1666 ProcessorList::iterator i;
1667 bool removed = false;
1669 for (i = _processors.begin(); i != _processors.end(); ) {
1670 if (*i == processor) {
1672 /* move along, see failure case for configure_processors()
1673 where we may need to reconfigure the processor.
1676 /* stop redirects that send signals to JACK ports
1677 from causing noise as a result of no longer being
1681 boost::shared_ptr<IOProcessor> iop;
1683 if ((iop = boost::dynamic_pointer_cast<IOProcessor> (*i)) != 0) {
1687 i = _processors.erase (i);
1695 _output->set_user_latency (0);
1703 if (configure_processors_unlocked (err)) {
1705 /* we know this will work, because it worked before :) */
1706 configure_processors_unlocked (0);
1710 _have_internal_generator = false;
1712 for (i = _processors.begin(); i != _processors.end(); ++i) {
1713 boost::shared_ptr<PluginInsert> pi;
1715 if ((pi = boost::dynamic_pointer_cast<PluginInsert>(*i)) != 0) {
1716 if (pi->has_no_inputs ()) {
1717 _have_internal_generator = true;
1722 if (need_process_lock) {
1727 reset_instrument_info ();
1728 processor->drop_references ();
1729 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
1730 set_processor_positions ();
1736 Route::remove_processors (const ProcessorList& to_be_deleted, ProcessorStreams* err)
1738 ProcessorList deleted;
1740 if (!_session.engine().connected()) {
1744 processor_max_streams.reset();
1747 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
1748 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
1749 ProcessorState pstate (this);
1751 ProcessorList::iterator i;
1752 boost::shared_ptr<Processor> processor;
1754 for (i = _processors.begin(); i != _processors.end(); ) {
1758 /* these can never be removed */
1760 if (processor == _amp || processor == _meter || processor == _main_outs || processor == _delayline || processor == _trim) {
1765 /* see if its in the list of processors to delete */
1767 if (find (to_be_deleted.begin(), to_be_deleted.end(), processor) == to_be_deleted.end()) {
1772 /* stop IOProcessors that send to JACK ports
1773 from causing noise as a result of no longer being
1777 boost::shared_ptr<IOProcessor> iop;
1779 if ((iop = boost::dynamic_pointer_cast<IOProcessor> (processor)) != 0) {
1783 deleted.push_back (processor);
1784 i = _processors.erase (i);
1787 if (deleted.empty()) {
1788 /* none of those in the requested list were found */
1792 _output->set_user_latency (0);
1794 if (configure_processors_unlocked (err)) {
1796 /* we know this will work, because it worked before :) */
1797 configure_processors_unlocked (0);
1802 _have_internal_generator = false;
1804 for (i = _processors.begin(); i != _processors.end(); ++i) {
1805 boost::shared_ptr<PluginInsert> pi;
1807 if ((pi = boost::dynamic_pointer_cast<PluginInsert>(*i)) != 0) {
1808 if (pi->has_no_inputs ()) {
1809 _have_internal_generator = true;
1816 /* now try to do what we need to so that those that were removed will be deleted */
1818 for (ProcessorList::iterator i = deleted.begin(); i != deleted.end(); ++i) {
1819 (*i)->drop_references ();
1822 reset_instrument_info ();
1823 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
1824 set_processor_positions ();
1830 Route::reset_instrument_info ()
1832 boost::shared_ptr<Processor> instr = the_instrument();
1834 _instrument_info.set_internal_instrument (instr);
1838 /** Caller must hold process lock */
1840 Route::configure_processors (ProcessorStreams* err)
1842 #ifndef PLATFORM_WINDOWS
1843 assert (!AudioEngine::instance()->process_lock().trylock());
1846 if (!_in_configure_processors) {
1847 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
1848 return configure_processors_unlocked (err);
1855 Route::input_streams () const
1857 return _input->n_ports ();
1860 list<pair<ChanCount, ChanCount> >
1861 Route::try_configure_processors (ChanCount in, ProcessorStreams* err)
1863 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
1865 return try_configure_processors_unlocked (in, err);
1868 list<pair<ChanCount, ChanCount> >
1869 Route::try_configure_processors_unlocked (ChanCount in, ProcessorStreams* err)
1871 // Check each processor in order to see if we can configure as requested
1873 list<pair<ChanCount, ChanCount> > configuration;
1876 DEBUG_TRACE (DEBUG::Processors, string_compose ("%1: configure processors\n", _name));
1877 DEBUG_TRACE (DEBUG::Processors, "{\n");
1879 for (ProcessorList::iterator p = _processors.begin(); p != _processors.end(); ++p, ++index) {
1881 if ((*p)->can_support_io_configuration(in, out)) {
1882 DEBUG_TRACE (DEBUG::Processors, string_compose ("\t%1 ID=%2 in=%3 out=%4\n",(*p)->name(), (*p)->id(), in, out));
1883 configuration.push_back(make_pair(in, out));
1890 DEBUG_TRACE (DEBUG::Processors, "---- CONFIGURATION FAILED.\n");
1891 DEBUG_TRACE (DEBUG::Processors, string_compose ("---- %1 cannot support in=%2 out=%3\n", (*p)->name(), in, out));
1892 DEBUG_TRACE (DEBUG::Processors, "}\n");
1893 return list<pair<ChanCount, ChanCount> > ();
1897 DEBUG_TRACE (DEBUG::Processors, "}\n");
1899 return configuration;
1902 /** Set the input/output configuration of each processor in the processors list.
1903 * Caller must hold process lock.
1904 * Return 0 on success, otherwise configuration is impossible.
1907 Route::configure_processors_unlocked (ProcessorStreams* err)
1909 #ifndef PLATFORM_WINDOWS
1910 assert (!AudioEngine::instance()->process_lock().trylock());
1913 if (_in_configure_processors) {
1917 /* put invisible processors where they should be */
1918 setup_invisible_processors ();
1920 _in_configure_processors = true;
1922 list<pair<ChanCount, ChanCount> > configuration = try_configure_processors_unlocked (input_streams (), err);
1924 if (configuration.empty ()) {
1925 _in_configure_processors = false;
1930 bool seen_mains_out = false;
1931 processor_out_streams = _input->n_ports();
1932 processor_max_streams.reset();
1934 list< pair<ChanCount,ChanCount> >::iterator c = configuration.begin();
1935 for (ProcessorList::iterator p = _processors.begin(); p != _processors.end(); ++p, ++c) {
1937 if (!(*p)->configure_io(c->first, c->second)) {
1938 DEBUG_TRACE (DEBUG::Processors, string_compose ("%1: configuration failed\n", _name));
1940 processor_max_streams = ChanCount::max(processor_max_streams, c->first);
1941 processor_max_streams = ChanCount::max(processor_max_streams, c->second);
1943 boost::shared_ptr<PluginInsert> pi;
1944 if ((pi = boost::dynamic_pointer_cast<PluginInsert>(*p)) != 0) {
1945 /* plugins connected via Split Match may have more channels.
1946 * route/scratch buffers are needed for all of them*/
1947 processor_max_streams = ChanCount::max(processor_max_streams, pi->input_streams());
1948 processor_max_streams = ChanCount::max(processor_max_streams, pi->natural_input_streams());
1952 if (boost::dynamic_pointer_cast<Delivery> (*p)
1953 && boost::dynamic_pointer_cast<Delivery> (*p)->role() == Delivery::Main) {
1954 /* main delivery will increase port count to match input.
1955 * the Delivery::Main is usually the last processor - followed only by
1958 seen_mains_out = true;
1960 if (!seen_mains_out) {
1961 processor_out_streams = out;
1967 _meter->set_max_channels (processor_max_streams);
1970 /* make sure we have sufficient scratch buffers to cope with the new processor
1973 _session.ensure_buffers (n_process_buffers ());
1975 DEBUG_TRACE (DEBUG::Processors, string_compose ("%1: configuration complete\n", _name));
1977 _in_configure_processors = false;
1981 /** Set all visible processors to a given active state (except Fader, whose state is not changed)
1982 * @param state New active state for those processors.
1985 Route::all_visible_processors_active (bool state)
1987 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
1989 if (_processors.empty()) {
1993 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
1994 if (!(*i)->display_to_user() || boost::dynamic_pointer_cast<Amp> (*i)) {
2001 (*i)->deactivate ();
2005 _session.set_dirty ();
2009 Route::processors_reorder_needs_configure (const ProcessorList& new_order)
2011 /* check if re-order requires re-configuration of any processors
2012 * -> compare channel configuration for all processors
2014 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
2015 ChanCount c = input_streams ();
2017 for (ProcessorList::const_iterator j = new_order.begin(); j != new_order.end(); ++j) {
2019 if (c != (*j)->input_streams()) {
2022 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
2025 if ((*i)->input_streams() != c) {
2028 c = (*i)->output_streams();
2040 __attribute__((annotate("realtime")))
2043 Route::apply_processor_order (const ProcessorList& new_order)
2045 /* need to hold processor_lock; either read or write lock
2046 * and the engine process_lock.
2047 * Due to r/w lock ambiguity we can only assert the latter
2049 assert (!AudioEngine::instance()->process_lock().trylock());
2052 /* "new_order" is an ordered list of processors to be positioned according to "placement".
2053 * NOTE: all processors in "new_order" MUST be marked as display_to_user(). There maybe additional
2054 * processors in the current actual processor list that are hidden. Any visible processors
2055 * in the current list but not in "new_order" will be assumed to be deleted.
2058 /* "as_it_will_be" and "_processors" are lists of shared pointers.
2059 * actual memory usage is small, but insert/erase is not actually rt-safe :(
2060 * (note though that ::processors_reorder_needs_configure() ensured that
2061 * this function will only ever be called from the rt-thread if no processor were removed)
2063 * either way, I can't proove it, but an x-run due to re-order here is less likley
2064 * than an x-run-less 'ardour-silent cycle' both of which effectively "click".
2067 ProcessorList as_it_will_be;
2068 ProcessorList::iterator oiter;
2069 ProcessorList::const_iterator niter;
2071 oiter = _processors.begin();
2072 niter = new_order.begin();
2074 while (niter != new_order.end()) {
2076 /* if the next processor in the old list is invisible (i.e. should not be in the new order)
2077 then append it to the temp list.
2079 Otherwise, see if the next processor in the old list is in the new list. if not,
2080 its been deleted. If its there, append it to the temp list.
2083 if (oiter == _processors.end()) {
2085 /* no more elements in the old list, so just stick the rest of
2086 the new order onto the temp list.
2089 as_it_will_be.insert (as_it_will_be.end(), niter, new_order.end());
2090 while (niter != new_order.end()) {
2097 if (!(*oiter)->display_to_user()) {
2099 as_it_will_be.push_back (*oiter);
2103 /* visible processor: check that its in the new order */
2105 if (find (new_order.begin(), new_order.end(), (*oiter)) == new_order.end()) {
2106 /* deleted: do nothing, shared_ptr<> will clean up */
2108 /* ignore this one, and add the next item from the new order instead */
2109 as_it_will_be.push_back (*niter);
2114 /* now remove from old order - its taken care of no matter what */
2115 oiter = _processors.erase (oiter);
2119 _processors.insert (oiter, as_it_will_be.begin(), as_it_will_be.end());
2121 /* If the meter is in a custom position, find it and make a rough note of its position */
2122 maybe_note_meter_position ();
2126 Route::reorder_processors (const ProcessorList& new_order, ProcessorStreams* err)
2128 // it a change is already queued, wait for it
2129 // (unless engine is stopped. apply immediately and proceed
2130 while (g_atomic_int_get (&_pending_process_reorder)) {
2131 if (!AudioEngine::instance()->running()) {
2132 DEBUG_TRACE (DEBUG::Processors, "offline apply queued processor re-order.\n");
2133 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
2135 apply_processor_order(_pending_processor_order);
2136 setup_invisible_processors ();
2138 g_atomic_int_set (&_pending_process_reorder, 0);
2140 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
2141 set_processor_positions ();
2143 // TODO rather use a semaphore or something.
2144 // but since ::reorder_processors() is called
2145 // from the GUI thread, this is fine..
2150 if (processors_reorder_needs_configure (new_order) || !AudioEngine::instance()->running()) {
2152 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
2153 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
2154 ProcessorState pstate (this);
2156 apply_processor_order (new_order);
2158 if (configure_processors_unlocked (err)) {
2166 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
2167 set_processor_positions ();
2170 DEBUG_TRACE (DEBUG::Processors, "Queue clickless processor re-order.\n");
2171 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
2173 // _pending_processor_order is protected by _processor_lock
2174 _pending_processor_order = new_order;
2175 g_atomic_int_set (&_pending_process_reorder, 1);
2188 Route::get_template()
2190 return state(false);
2194 Route::state(bool full_state)
2196 XMLNode *node = new XMLNode("Route");
2197 ProcessorList::iterator i;
2200 id().print (buf, sizeof (buf));
2201 node->add_property("id", buf);
2202 node->add_property ("name", _name);
2203 node->add_property("default-type", _default_type.to_string());
2206 node->add_property("flags", enum_2_string (_flags));
2209 node->add_property("active", _active?"yes":"no");
2211 boost::to_string (_phase_invert, p);
2212 node->add_property("phase-invert", p);
2213 node->add_property("denormal-protection", _denormal_protection?"yes":"no");
2214 node->add_property("meter-point", enum_2_string (_meter_point));
2216 node->add_property("meter-type", enum_2_string (_meter_type));
2219 node->add_property("route-group", _route_group->name());
2222 snprintf (buf, sizeof (buf), "%d", _order_key);
2223 node->add_property ("order-key", buf);
2224 node->add_property ("self-solo", (_self_solo ? "yes" : "no"));
2225 snprintf (buf, sizeof (buf), "%d", _soloed_by_others_upstream);
2226 node->add_property ("soloed-by-upstream", buf);
2227 snprintf (buf, sizeof (buf), "%d", _soloed_by_others_downstream);
2228 node->add_property ("soloed-by-downstream", buf);
2229 node->add_property ("solo-isolated", solo_isolated() ? "yes" : "no");
2230 node->add_property ("solo-safe", _solo_safe ? "yes" : "no");
2232 node->add_child_nocopy (_input->state (full_state));
2233 node->add_child_nocopy (_output->state (full_state));
2234 node->add_child_nocopy (_solo_control->get_state ());
2235 node->add_child_nocopy (_mute_control->get_state ());
2236 node->add_child_nocopy (_mute_master->get_state ());
2239 node->add_child_nocopy (Automatable::get_automation_xml_state ());
2242 XMLNode* remote_control_node = new XMLNode (X_("RemoteControl"));
2243 snprintf (buf, sizeof (buf), "%d", _remote_control_id);
2244 remote_control_node->add_property (X_("id"), buf);
2245 node->add_child_nocopy (*remote_control_node);
2247 if (_comment.length()) {
2248 XMLNode *cmt = node->add_child ("Comment");
2249 cmt->add_content (_comment);
2253 node->add_child_nocopy (_pannable->state (full_state));
2256 for (i = _processors.begin(); i != _processors.end(); ++i) {
2258 /* template save: do not include internal sends functioning as
2259 aux sends because the chance of the target ID
2260 in the session where this template is used
2263 similarly, do not save listen sends which connect to
2264 the monitor section, because these will always be
2267 boost::shared_ptr<InternalSend> is;
2269 if ((is = boost::dynamic_pointer_cast<InternalSend> (*i)) != 0) {
2270 if (is->role() == Delivery::Listen) {
2275 node->add_child_nocopy((*i)->state (full_state));
2279 node->add_child_copy (*_extra_xml);
2282 if (_custom_meter_position_noted) {
2283 boost::shared_ptr<Processor> after = _processor_after_last_custom_meter.lock ();
2285 after->id().print (buf, sizeof (buf));
2286 node->add_property (X_("processor-after-last-custom-meter"), buf);
2294 Route::set_state (const XMLNode& node, int version)
2296 if (version < 3000) {
2297 return set_state_2X (node, version);
2301 XMLNodeConstIterator niter;
2303 const XMLProperty *prop;
2305 if (node.name() != "Route"){
2306 error << string_compose(_("Bad node sent to Route::set_state() [%1]"), node.name()) << endmsg;
2310 if ((prop = node.property (X_("name"))) != 0) {
2311 Route::set_name (prop->value());
2315 _initial_io_setup = true;
2317 if ((prop = node.property (X_("flags"))) != 0) {
2318 _flags = Flag (string_2_enum (prop->value(), _flags));
2323 if (is_master() || is_monitor() || is_auditioner()) {
2324 _mute_master->set_solo_ignore (true);
2328 /* monitor bus does not get a panner, but if (re)created
2329 via XML, it will already have one by the time we
2330 call ::set_state(). so ... remove it.
2335 /* add all processors (except amp, which is always present) */
2337 nlist = node.children();
2338 XMLNode processor_state (X_("processor_state"));
2340 Stateful::save_extra_xml (node);
2342 for (niter = nlist.begin(); niter != nlist.end(); ++niter){
2346 if (child->name() == IO::state_node_name) {
2347 if ((prop = child->property (X_("direction"))) == 0) {
2351 if (prop->value() == "Input") {
2352 _input->set_state (*child, version);
2353 } else if (prop->value() == "Output") {
2354 _output->set_state (*child, version);
2358 if (child->name() == X_("Processor")) {
2359 processor_state.add_child_copy (*child);
2362 if (child->name() == X_("Pannable")) {
2364 _pannable->set_state (*child, version);
2366 warning << string_compose (_("Pannable state found for route (%1) without a panner!"), name()) << endmsg;
2371 if ((prop = node.property (X_("meter-point"))) != 0) {
2372 MeterPoint mp = MeterPoint (string_2_enum (prop->value (), _meter_point));
2373 set_meter_point (mp, true);
2375 _meter->set_display_to_user (_meter_point == MeterCustom);
2379 if ((prop = node.property (X_("meter-type"))) != 0) {
2380 _meter_type = MeterType (string_2_enum (prop->value (), _meter_type));
2383 _initial_io_setup = false;
2385 set_processor_state (processor_state);
2387 // this looks up the internal instrument in processors
2388 reset_instrument_info();
2390 if ((prop = node.property ("self-solo")) != 0) {
2391 set_self_solo (string_is_affirmative (prop->value()));
2394 if ((prop = node.property ("soloed-by-upstream")) != 0) {
2395 _soloed_by_others_upstream = 0; // needed for mod_.... () to work
2396 mod_solo_by_others_upstream (atoi (prop->value()));
2399 if ((prop = node.property ("soloed-by-downstream")) != 0) {
2400 _soloed_by_others_downstream = 0; // needed for mod_.... () to work
2401 mod_solo_by_others_downstream (atoi (prop->value()));
2404 if ((prop = node.property ("solo-isolated")) != 0) {
2405 set_solo_isolated (string_is_affirmative (prop->value()), this);
2408 if ((prop = node.property ("solo-safe")) != 0) {
2409 set_solo_safe (string_is_affirmative (prop->value()), this);
2412 if ((prop = node.property (X_("phase-invert"))) != 0) {
2413 set_phase_invert (boost::dynamic_bitset<> (prop->value ()));
2416 if ((prop = node.property (X_("denormal-protection"))) != 0) {
2417 set_denormal_protection (string_is_affirmative (prop->value()));
2420 if ((prop = node.property (X_("active"))) != 0) {
2421 bool yn = string_is_affirmative (prop->value());
2422 _active = !yn; // force switch
2423 set_active (yn, this);
2426 if ((prop = node.property (X_("order-key"))) != 0) { // New order key (no separate mixer/editor ordering)
2427 set_order_key (atoi(prop->value()));
2430 if ((prop = node.property (X_("order-keys"))) != 0) { // Deprecated order keys
2434 string::size_type colon, equal;
2435 string remaining = prop->value();
2437 while (remaining.length()) {
2439 if ((equal = remaining.find_first_of ('=')) == string::npos || equal == remaining.length()) {
2440 error << string_compose (_("badly formed order key string in state file! [%1] ... ignored."), remaining)
2443 if (sscanf (remaining.substr (equal+1).c_str(), "%d", &n) != 1) {
2444 error << string_compose (_("badly formed order key string in state file! [%1] ... ignored."), remaining)
2447 string keyname = remaining.substr (0, equal);
2449 if ((keyname == "EditorSort") || (keyname == "editor")) {
2450 cerr << "Setting " << name() << " order key to " << n << " using saved Editor order." << endl;
2456 colon = remaining.find_first_of (':');
2458 if (colon != string::npos) {
2459 remaining = remaining.substr (colon+1);
2466 if ((prop = node.property (X_("processor-after-last-custom-meter"))) != 0) {
2467 PBD::ID id (prop->value ());
2468 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
2469 ProcessorList::const_iterator i = _processors.begin ();
2470 while (i != _processors.end() && (*i)->id() != id) {
2474 if (i != _processors.end ()) {
2475 _processor_after_last_custom_meter = *i;
2476 _custom_meter_position_noted = true;
2480 for (niter = nlist.begin(); niter != nlist.end(); ++niter){
2483 if (child->name() == X_("Comment")) {
2485 /* XXX this is a terrible API design in libxml++ */
2487 XMLNode *cmt = *(child->children().begin());
2488 _comment = cmt->content();
2490 } else if (child->name() == Controllable::xml_node_name && (prop = child->property("name")) != 0) {
2491 if (prop->value() == "solo") {
2492 _solo_control->set_state (*child, version);
2493 } else if (prop->value() == "mute") {
2494 _mute_control->set_state (*child, version);
2497 } else if (child->name() == X_("RemoteControl")) {
2498 if ((prop = child->property (X_("id"))) != 0) {
2500 sscanf (prop->value().c_str(), "%d", &x);
2501 set_remote_control_id_internal (x);
2504 } else if (child->name() == X_("MuteMaster")) {
2505 _mute_master->set_state (*child, version);
2507 } else if (child->name() == Automatable::xml_node_name) {
2508 set_automation_xml_state (*child, Evoral::Parameter(NullAutomation));
2516 Route::set_state_2X (const XMLNode& node, int version)
2518 LocaleGuard lg (X_("C"));
2520 XMLNodeConstIterator niter;
2522 const XMLProperty *prop;
2524 /* 2X things which still remain to be handled:
2530 if (node.name() != "Route") {
2531 error << string_compose(_("Bad node sent to Route::set_state() [%1]"), node.name()) << endmsg;
2535 if ((prop = node.property (X_("flags"))) != 0) {
2536 string f = prop->value ();
2537 boost::replace_all (f, "ControlOut", "MonitorOut");
2538 _flags = Flag (string_2_enum (f, _flags));
2543 if (is_master() || is_monitor() || is_auditioner()) {
2544 _mute_master->set_solo_ignore (true);
2547 if ((prop = node.property (X_("phase-invert"))) != 0) {
2548 boost::dynamic_bitset<> p (_input->n_ports().n_audio ());
2549 if (string_is_affirmative (prop->value ())) {
2552 set_phase_invert (p);
2555 if ((prop = node.property (X_("denormal-protection"))) != 0) {
2556 set_denormal_protection (string_is_affirmative (prop->value()));
2559 if ((prop = node.property (X_("soloed"))) != 0) {
2560 bool yn = string_is_affirmative (prop->value());
2562 /* XXX force reset of solo status */
2564 set_solo (yn, this);
2567 if ((prop = node.property (X_("muted"))) != 0) {
2570 bool muted = string_is_affirmative (prop->value());
2576 if ((prop = node.property (X_("mute-affects-pre-fader"))) != 0) {
2578 if (string_is_affirmative (prop->value())){
2579 mute_point = mute_point + "PreFader";
2584 if ((prop = node.property (X_("mute-affects-post-fader"))) != 0) {
2586 if (string_is_affirmative (prop->value())){
2589 mute_point = mute_point + ",";
2592 mute_point = mute_point + "PostFader";
2597 if ((prop = node.property (X_("mute-affects-control-outs"))) != 0) {
2599 if (string_is_affirmative (prop->value())){
2602 mute_point = mute_point + ",";
2605 mute_point = mute_point + "Listen";
2610 if ((prop = node.property (X_("mute-affects-main-outs"))) != 0) {
2612 if (string_is_affirmative (prop->value())){
2615 mute_point = mute_point + ",";
2618 mute_point = mute_point + "Main";
2622 _mute_master->set_mute_points (mute_point);
2623 _mute_master->set_muted_by_self (true);
2627 if ((prop = node.property (X_("meter-point"))) != 0) {
2628 _meter_point = MeterPoint (string_2_enum (prop->value (), _meter_point));
2631 /* do not carry over edit/mix groups from 2.X because (a) its hard (b) they
2632 don't mean the same thing.
2635 if ((prop = node.property (X_("order-keys"))) != 0) {
2639 string::size_type colon, equal;
2640 string remaining = prop->value();
2642 while (remaining.length()) {
2644 if ((equal = remaining.find_first_of ('=')) == string::npos || equal == remaining.length()) {
2645 error << string_compose (_("badly formed order key string in state file! [%1] ... ignored."), remaining)
2648 if (sscanf (remaining.substr (equal+1).c_str(), "%d", &n) != 1) {
2649 error << string_compose (_("badly formed order key string in state file! [%1] ... ignored."), remaining)
2652 string keyname = remaining.substr (0, equal);
2654 if (keyname == "EditorSort" || keyname == "editor") {
2655 info << string_compose(_("Converting deprecated order key for %1 using Editor order %2"), name (), n) << endmsg;
2661 colon = remaining.find_first_of (':');
2663 if (colon != string::npos) {
2664 remaining = remaining.substr (colon+1);
2673 nlist = node.children ();
2674 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
2678 if (child->name() == IO::state_node_name) {
2680 /* there is a note in IO::set_state_2X() about why we have to call
2684 _input->set_state_2X (*child, version, true);
2685 _output->set_state_2X (*child, version, false);
2687 if ((prop = child->property (X_("name"))) != 0) {
2688 Route::set_name (prop->value ());
2693 if ((prop = child->property (X_("active"))) != 0) {
2694 bool yn = string_is_affirmative (prop->value());
2695 _active = !yn; // force switch
2696 set_active (yn, this);
2699 if ((prop = child->property (X_("gain"))) != 0) {
2702 if (sscanf (prop->value().c_str(), "%f", &val) == 1) {
2703 _amp->gain_control()->set_value (val);
2707 /* Set up Panners in the IO */
2708 XMLNodeList io_nlist = child->children ();
2710 XMLNodeConstIterator io_niter;
2713 for (io_niter = io_nlist.begin(); io_niter != io_nlist.end(); ++io_niter) {
2715 io_child = *io_niter;
2717 if (io_child->name() == X_("Panner")) {
2718 _main_outs->panner_shell()->set_state(*io_child, version);
2719 } else if (io_child->name() == X_("Automation")) {
2720 /* IO's automation is for the fader */
2721 _amp->set_automation_xml_state (*io_child, Evoral::Parameter (GainAutomation));
2727 XMLNodeList redirect_nodes;
2729 for (niter = nlist.begin(); niter != nlist.end(); ++niter){
2733 if (child->name() == X_("Send") || child->name() == X_("Insert")) {
2734 redirect_nodes.push_back(child);
2739 set_processor_state_2X (redirect_nodes, version);
2741 Stateful::save_extra_xml (node);
2743 for (niter = nlist.begin(); niter != nlist.end(); ++niter){
2746 if (child->name() == X_("Comment")) {
2748 /* XXX this is a terrible API design in libxml++ */
2750 XMLNode *cmt = *(child->children().begin());
2751 _comment = cmt->content();
2753 } else if (child->name() == Controllable::xml_node_name && (prop = child->property("name")) != 0) {
2754 if (prop->value() == X_("solo")) {
2755 _solo_control->set_state (*child, version);
2756 } else if (prop->value() == X_("mute")) {
2757 _mute_control->set_state (*child, version);
2760 } else if (child->name() == X_("RemoteControl")) {
2761 if ((prop = child->property (X_("id"))) != 0) {
2763 sscanf (prop->value().c_str(), "%d", &x);
2764 set_remote_control_id_internal (x);
2774 Route::get_processor_state ()
2776 XMLNode* root = new XMLNode (X_("redirects"));
2777 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
2778 root->add_child_nocopy ((*i)->state (true));
2785 Route::set_processor_state_2X (XMLNodeList const & nList, int version)
2787 /* We don't bother removing existing processors not in nList, as this
2788 method will only be called when creating a Route from scratch, not
2789 for undo purposes. Just put processors in at the appropriate place
2793 for (XMLNodeConstIterator i = nList.begin(); i != nList.end(); ++i) {
2794 add_processor_from_xml_2X (**i, version);
2799 Route::set_processor_state (const XMLNode& node)
2801 const XMLNodeList &nlist = node.children();
2802 XMLNodeConstIterator niter;
2803 ProcessorList new_order;
2804 bool must_configure = false;
2806 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
2808 XMLProperty* prop = (*niter)->property ("type");
2810 if (prop->value() == "amp") {
2811 _amp->set_state (**niter, Stateful::current_state_version);
2812 new_order.push_back (_amp);
2813 } else if (prop->value() == "trim") {
2814 _trim->set_state (**niter, Stateful::current_state_version);
2815 new_order.push_back (_trim);
2816 } else if (prop->value() == "meter") {
2817 _meter->set_state (**niter, Stateful::current_state_version);
2818 new_order.push_back (_meter);
2819 } else if (prop->value() == "delay") {
2821 _delayline->set_state (**niter, Stateful::current_state_version);
2822 new_order.push_back (_delayline);
2824 } else if (prop->value() == "main-outs") {
2825 _main_outs->set_state (**niter, Stateful::current_state_version);
2826 } else if (prop->value() == "intreturn") {
2828 _intreturn.reset (new InternalReturn (_session));
2829 must_configure = true;
2831 _intreturn->set_state (**niter, Stateful::current_state_version);
2832 } else if (is_monitor() && prop->value() == "monitor") {
2833 if (!_monitor_control) {
2834 _monitor_control.reset (new MonitorProcessor (_session));
2835 must_configure = true;
2837 _monitor_control->set_state (**niter, Stateful::current_state_version);
2838 } else if (prop->value() == "capture") {
2839 /* CapturingProcessor should never be restored, it's always
2840 added explicitly when needed */
2842 ProcessorList::iterator o;
2844 for (o = _processors.begin(); o != _processors.end(); ++o) {
2845 XMLProperty* id_prop = (*niter)->property(X_("id"));
2846 if (id_prop && (*o)->id() == id_prop->value()) {
2847 (*o)->set_state (**niter, Stateful::current_state_version);
2848 new_order.push_back (*o);
2853 // If the processor (*niter) is not on the route then create it
2855 if (o == _processors.end()) {
2857 boost::shared_ptr<Processor> processor;
2859 if (prop->value() == "intsend") {
2861 processor.reset (new InternalSend (_session, _pannable, _mute_master, boost::dynamic_pointer_cast<ARDOUR::Route>(shared_from_this()), boost::shared_ptr<Route>(), Delivery::Aux, true));
2863 } else if (prop->value() == "ladspa" || prop->value() == "Ladspa" ||
2864 prop->value() == "lv2" ||
2865 prop->value() == "windows-vst" ||
2866 prop->value() == "lxvst" ||
2867 prop->value() == "audiounit") {
2869 processor.reset (new PluginInsert(_session));
2871 } else if (prop->value() == "port") {
2873 processor.reset (new PortInsert (_session, _pannable, _mute_master));
2875 } else if (prop->value() == "send") {
2877 processor.reset (new Send (_session, _pannable, _mute_master, Delivery::Send, true));
2880 error << string_compose(_("unknown Processor type \"%1\"; ignored"), prop->value()) << endmsg;
2884 if (processor->set_state (**niter, Stateful::current_state_version) != 0) {
2885 /* This processor could not be configured. Turn it into a UnknownProcessor */
2886 processor.reset (new UnknownProcessor (_session, **niter));
2889 /* we have to note the monitor send here, otherwise a new one will be created
2890 and the state of this one will be lost.
2892 boost::shared_ptr<InternalSend> isend = boost::dynamic_pointer_cast<InternalSend> (processor);
2893 if (isend && isend->role() == Delivery::Listen) {
2894 _monitor_send = isend;
2897 /* it doesn't matter if invisible processors are added here, as they
2898 will be sorted out by setup_invisible_processors () shortly.
2901 new_order.push_back (processor);
2902 must_configure = true;
2908 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
2909 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
2910 _processors = new_order;
2912 if (must_configure) {
2913 configure_processors_unlocked (0);
2916 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
2918 (*i)->set_owner (this);
2919 (*i)->ActiveChanged.connect_same_thread (*this, boost::bind (&Session::update_latency_compensation, &_session, false));
2921 boost::shared_ptr<PluginInsert> pi;
2923 if ((pi = boost::dynamic_pointer_cast<PluginInsert>(*i)) != 0) {
2924 if (pi->has_no_inputs ()) {
2925 _have_internal_generator = true;
2932 reset_instrument_info ();
2933 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
2934 set_processor_positions ();
2938 Route::curve_reallocate ()
2940 // _gain_automation_curve.finish_resize ();
2941 // _pan_automation_curve.finish_resize ();
2945 Route::silence (framecnt_t nframes)
2947 Glib::Threads::RWLock::ReaderLock lm (_processor_lock, Glib::Threads::TRY_LOCK);
2952 silence_unlocked (nframes);
2956 Route::silence_unlocked (framecnt_t nframes)
2958 /* Must be called with the processor lock held */
2962 _output->silence (nframes);
2964 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
2965 boost::shared_ptr<PluginInsert> pi;
2967 if (!_active && (pi = boost::dynamic_pointer_cast<PluginInsert> (*i)) != 0) {
2968 // skip plugins, they don't need anything when we're not active
2972 (*i)->silence (nframes);
2975 if (nframes == _session.get_block_size()) {
2982 Route::add_internal_return ()
2985 _intreturn.reset (new InternalReturn (_session));
2986 add_processor (_intreturn, PreFader);
2991 Route::add_send_to_internal_return (InternalSend* send)
2993 Glib::Threads::RWLock::ReaderLock rm (_processor_lock);
2995 for (ProcessorList::const_iterator x = _processors.begin(); x != _processors.end(); ++x) {
2996 boost::shared_ptr<InternalReturn> d = boost::dynamic_pointer_cast<InternalReturn>(*x);
2999 return d->add_send (send);
3005 Route::remove_send_from_internal_return (InternalSend* send)
3007 Glib::Threads::RWLock::ReaderLock rm (_processor_lock);
3009 for (ProcessorList::const_iterator x = _processors.begin(); x != _processors.end(); ++x) {
3010 boost::shared_ptr<InternalReturn> d = boost::dynamic_pointer_cast<InternalReturn>(*x);
3013 return d->remove_send (send);
3019 Route::enable_monitor_send ()
3021 /* Caller must hold process lock */
3022 assert (!AudioEngine::instance()->process_lock().trylock());
3024 /* master never sends to monitor section via the normal mechanism */
3025 assert (!is_master ());
3026 assert (!is_monitor ());
3028 /* make sure we have one */
3029 if (!_monitor_send) {
3030 _monitor_send.reset (new InternalSend (_session, _pannable, _mute_master, boost::dynamic_pointer_cast<ARDOUR::Route>(shared_from_this()), _session.monitor_out(), Delivery::Listen));
3031 _monitor_send->set_display_to_user (false);
3035 configure_processors (0);
3038 /** Add an aux send to a route.
3039 * @param route route to send to.
3040 * @param before Processor to insert before, or 0 to insert at the end.
3043 Route::add_aux_send (boost::shared_ptr<Route> route, boost::shared_ptr<Processor> before)
3045 assert (route != _session.monitor_out ());
3048 Glib::Threads::RWLock::ReaderLock rm (_processor_lock);
3050 for (ProcessorList::iterator x = _processors.begin(); x != _processors.end(); ++x) {
3052 boost::shared_ptr<InternalSend> d = boost::dynamic_pointer_cast<InternalSend> (*x);
3054 if (d && d->target_route() == route) {
3055 /* already listening via the specified IO: do nothing */
3063 boost::shared_ptr<InternalSend> listener;
3066 Glib::Threads::Mutex::Lock lm (AudioEngine::instance()->process_lock ());
3067 boost::shared_ptr<Pannable> sendpan (new Pannable (_session));
3068 listener.reset (new InternalSend (_session, sendpan, _mute_master, boost::dynamic_pointer_cast<ARDOUR::Route>(shared_from_this()), route, Delivery::Aux));
3071 add_processor (listener, before);
3073 } catch (failed_constructor& err) {
3081 Route::remove_aux_or_listen (boost::shared_ptr<Route> route)
3083 ProcessorStreams err;
3084 ProcessorList::iterator tmp;
3087 Glib::Threads::RWLock::ReaderLock rl(_processor_lock);
3089 /* have to do this early because otherwise processor reconfig
3090 * will put _monitor_send back in the list
3093 if (route == _session.monitor_out()) {
3094 _monitor_send.reset ();
3098 for (ProcessorList::iterator x = _processors.begin(); x != _processors.end(); ++x) {
3100 boost::shared_ptr<InternalSend> d = boost::dynamic_pointer_cast<InternalSend>(*x);
3102 if (d && d->target_route() == route) {
3104 remove_processor (*x, &err, false);
3107 /* list could have been demolished while we dropped the lock
3118 Route::set_comment (string cmt, void *src)
3121 comment_changed (src);
3122 _session.set_dirty ();
3126 Route::add_fed_by (boost::shared_ptr<Route> other, bool via_sends_only)
3128 FeedRecord fr (other, via_sends_only);
3130 pair<FedBy::iterator,bool> result = _fed_by.insert (fr);
3132 if (!result.second) {
3134 /* already a record for "other" - make sure sends-only information is correct */
3135 if (!via_sends_only && result.first->sends_only) {
3136 FeedRecord* frp = const_cast<FeedRecord*>(&(*result.first));
3137 frp->sends_only = false;
3141 return result.second;
3145 Route::clear_fed_by ()
3151 Route::feeds (boost::shared_ptr<Route> other, bool* via_sends_only)
3153 const FedBy& fed_by (other->fed_by());
3155 for (FedBy::const_iterator f = fed_by.begin(); f != fed_by.end(); ++f) {
3156 boost::shared_ptr<Route> sr = f->r.lock();
3158 if (sr && (sr.get() == this)) {
3160 if (via_sends_only) {
3161 *via_sends_only = f->sends_only;
3172 Route::direct_feeds_according_to_reality (boost::shared_ptr<Route> other, bool* via_send_only)
3174 DEBUG_TRACE (DEBUG::Graph, string_compose ("Feeds? %1\n", _name));
3176 if (_output->connected_to (other->input())) {
3177 DEBUG_TRACE (DEBUG::Graph, string_compose ("\tdirect FEEDS %2\n", other->name()));
3178 if (via_send_only) {
3179 *via_send_only = false;
3186 for (ProcessorList::iterator r = _processors.begin(); r != _processors.end(); ++r) {
3188 boost::shared_ptr<IOProcessor> iop;
3190 if ((iop = boost::dynamic_pointer_cast<IOProcessor>(*r)) != 0) {
3191 if (iop->feeds (other)) {
3192 DEBUG_TRACE (DEBUG::Graph, string_compose ("\tIOP %1 does feed %2\n", iop->name(), other->name()));
3193 if (via_send_only) {
3194 *via_send_only = true;
3198 DEBUG_TRACE (DEBUG::Graph, string_compose ("\tIOP %1 does NOT feed %2\n", iop->name(), other->name()));
3201 DEBUG_TRACE (DEBUG::Graph, string_compose ("\tPROC %1 is not an IOP\n", (*r)->name()));
3206 DEBUG_TRACE (DEBUG::Graph, string_compose ("\tdoes NOT feed %1\n", other->name()));
3211 Route::direct_feeds_according_to_graph (boost::shared_ptr<Route> other, bool* via_send_only)
3213 return _session._current_route_graph.has (shared_from_this (), other, via_send_only);
3216 /** Called from the (non-realtime) butler thread when the transport is stopped */
3218 Route::nonrealtime_handle_transport_stopped (bool /*abort_ignored*/, bool /*did_locate*/, bool can_flush_processors)
3220 framepos_t now = _session.transport_frame();
3223 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
3225 Automatable::transport_stopped (now);
3227 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
3229 if (!_have_internal_generator && (Config->get_plugins_stop_with_transport() && can_flush_processors)) {
3233 (*i)->transport_stopped (now);
3237 _roll_delay = _initial_delay;
3241 Route::input_change_handler (IOChange change, void * /*src*/)
3243 bool need_to_queue_solo_change = true;
3245 if ((change.type & IOChange::ConfigurationChanged)) {
3246 /* This is called with the process lock held if change
3247 contains ConfigurationChanged
3249 need_to_queue_solo_change = false;
3250 configure_processors (0);
3251 _phase_invert.resize (_input->n_ports().n_audio ());
3252 io_changed (); /* EMIT SIGNAL */
3255 if (!_input->connected() && _soloed_by_others_upstream) {
3256 if (need_to_queue_solo_change) {
3257 _session.cancel_solo_after_disconnect (shared_from_this(), true);
3259 cancel_solo_after_disconnect (true);
3265 Route::output_change_handler (IOChange change, void * /*src*/)
3267 bool need_to_queue_solo_change = true;
3268 if (_initial_io_setup) {
3272 if ((change.type & IOChange::ConfigurationChanged)) {
3273 /* This is called with the process lock held if change
3274 contains ConfigurationChanged
3276 need_to_queue_solo_change = false;
3277 configure_processors (0);
3280 _session.reset_monitor_section();
3283 io_changed (); /* EMIT SIGNAL */
3286 if (!_output->connected() && _soloed_by_others_downstream) {
3287 if (need_to_queue_solo_change) {
3288 _session.cancel_solo_after_disconnect (shared_from_this(), false);
3290 cancel_solo_after_disconnect (false);
3296 Route::cancel_solo_after_disconnect (bool upstream)
3299 _soloed_by_others_upstream = 0;
3301 _soloed_by_others_downstream = 0;
3303 set_mute_master_solo ();
3304 solo_changed (false, this);
3308 Route::pans_required () const
3310 if (n_outputs().n_audio() < 2) {
3314 return max (n_inputs ().n_audio(), processor_max_streams.n_audio());
3318 Route::no_roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame, bool session_state_changing)
3320 Glib::Threads::RWLock::ReaderLock lm (_processor_lock, Glib::Threads::TRY_LOCK);
3326 if (n_outputs().n_total() == 0) {
3330 if (!_active || n_inputs() == ChanCount::ZERO) {
3331 silence_unlocked (nframes);
3335 if (session_state_changing) {
3336 if (_session.transport_speed() != 0.0f) {
3337 /* we're rolling but some state is changing (e.g. our diskstream contents)
3338 so we cannot use them. Be silent till this is over.
3340 XXX note the absurdity of ::no_roll() being called when we ARE rolling!
3342 silence_unlocked (nframes);
3345 /* we're really not rolling, so we're either delivery silence or actually
3346 monitoring, both of which are safe to do while session_state_changing is true.
3350 BufferSet& bufs = _session.get_route_buffers (n_process_buffers());
3352 fill_buffers_with_input (bufs, _input, nframes);
3354 if (_meter_point == MeterInput) {
3355 _meter->run (bufs, start_frame, end_frame, nframes, true);
3358 _amp->apply_gain_automation (false);
3359 _trim->apply_gain_automation (false);
3360 passthru (bufs, start_frame, end_frame, nframes, 0);
3366 Route::roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame, int declick, bool& /* need_butler */)
3368 Glib::Threads::RWLock::ReaderLock lm (_processor_lock, Glib::Threads::TRY_LOCK);
3373 if (n_outputs().n_total() == 0) {
3377 if (!_active || n_inputs().n_total() == 0) {
3378 silence_unlocked (nframes);
3382 framepos_t unused = 0;
3384 if ((nframes = check_initial_delay (nframes, unused)) == 0) {
3390 BufferSet& bufs = _session.get_route_buffers (n_process_buffers());
3392 fill_buffers_with_input (bufs, _input, nframes);
3394 if (_meter_point == MeterInput) {
3395 _meter->run (bufs, start_frame, end_frame, nframes, true);
3398 passthru (bufs, start_frame, end_frame, nframes, declick);
3404 Route::silent_roll (pframes_t nframes, framepos_t /*start_frame*/, framepos_t /*end_frame*/, bool& /* need_butler */)
3411 Route::flush_processors ()
3413 /* XXX shouldn't really try to take this lock, since
3414 this is called from the RT audio thread.
3417 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
3419 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
3425 __attribute__((annotate("realtime")))
3428 Route::apply_processor_changes_rt ()
3430 int emissions = EmitNone;
3432 if (_pending_meter_point != _meter_point) {
3433 Glib::Threads::RWLock::WriterLock pwl (_processor_lock, Glib::Threads::TRY_LOCK);
3435 /* meters always have buffers for 'processor_max_streams'
3436 * they can be re-positioned without re-allocation */
3437 if (set_meter_point_unlocked()) {
3438 emissions |= EmitMeterChanged | EmitMeterVisibilityChange;;
3440 emissions |= EmitMeterChanged;
3445 bool changed = false;
3447 if (g_atomic_int_get (&_pending_process_reorder)) {
3448 Glib::Threads::RWLock::WriterLock pwl (_processor_lock, Glib::Threads::TRY_LOCK);
3450 apply_processor_order (_pending_processor_order);
3451 setup_invisible_processors ();
3453 g_atomic_int_set (&_pending_process_reorder, 0);
3454 emissions |= EmitRtProcessorChange;
3458 set_processor_positions ();
3460 if (emissions != 0) {
3461 g_atomic_int_set (&_pending_signals, emissions);
3468 Route::emit_pending_signals ()
3471 int sig = g_atomic_int_and (&_pending_signals, 0);
3472 if (sig & EmitMeterChanged) {
3473 _meter->emit_configuration_changed();
3474 meter_change (); /* EMIT SIGNAL */
3475 if (sig & EmitMeterVisibilityChange) {
3476 processors_changed (RouteProcessorChange (RouteProcessorChange::MeterPointChange, true)); /* EMIT SIGNAL */
3478 processors_changed (RouteProcessorChange (RouteProcessorChange::MeterPointChange, false)); /* EMIT SIGNAL */
3481 if (sig & EmitRtProcessorChange) {
3482 processors_changed (RouteProcessorChange (RouteProcessorChange::RealTimeChange)); /* EMIT SIGNAL */
3487 Route::set_meter_point (MeterPoint p, bool force)
3489 if (_pending_meter_point == p && !force) {
3493 if (force || !AudioEngine::instance()->running()) {
3494 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
3495 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
3496 _pending_meter_point = p;
3497 _meter->emit_configuration_changed();
3498 meter_change (); /* EMIT SIGNAL */
3499 if (set_meter_point_unlocked()) {
3500 processors_changed (RouteProcessorChange (RouteProcessorChange::MeterPointChange, true)); /* EMIT SIGNAL */
3502 processors_changed (RouteProcessorChange (RouteProcessorChange::MeterPointChange, false)); /* EMIT SIGNAL */
3505 _pending_meter_point = p;
3511 __attribute__((annotate("realtime")))
3514 Route::set_meter_point_unlocked ()
3517 /* Caller must hold process and processor write lock */
3518 assert (!AudioEngine::instance()->process_lock().trylock());
3519 Glib::Threads::RWLock::WriterLock lm (_processor_lock, Glib::Threads::TRY_LOCK);
3520 assert (!lm.locked ());
3523 _meter_point = _pending_meter_point;
3525 bool meter_was_visible_to_user = _meter->display_to_user ();
3527 if (!_custom_meter_position_noted) {
3528 maybe_note_meter_position ();
3531 if (_meter_point != MeterCustom) {
3533 _meter->set_display_to_user (false);
3535 setup_invisible_processors ();
3538 _meter->set_display_to_user (true);
3540 /* If we have a previous position for the custom meter, try to put it there */
3541 boost::shared_ptr<Processor> after = _processor_after_last_custom_meter.lock ();
3543 ProcessorList::iterator i = find (_processors.begin(), _processors.end(), after);
3544 if (i != _processors.end ()) {
3545 _processors.remove (_meter);
3546 _processors.insert (i, _meter);
3548 } else {// at end, right before the mains_out/panner
3549 _processors.remove (_meter);
3550 ProcessorList::iterator main = _processors.end();
3551 _processors.insert (--main, _meter);
3555 /* Set up the meter for its new position */
3557 ProcessorList::iterator loc = find (_processors.begin(), _processors.end(), _meter);
3561 if (loc == _processors.begin()) {
3562 m_in = _input->n_ports();
3564 ProcessorList::iterator before = loc;
3566 m_in = (*before)->output_streams ();
3569 _meter->reflect_inputs (m_in);
3571 /* we do not need to reconfigure the processors, because the meter
3572 (a) is always ready to handle processor_max_streams
3573 (b) is always an N-in/N-out processor, and thus moving
3574 it doesn't require any changes to the other processors.
3577 /* these should really be done after releasing the lock
3578 * but all those signals are subscribed to with gui_thread()
3581 return (_meter->display_to_user() != meter_was_visible_to_user);
3585 Route::listen_position_changed ()
3588 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
3589 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
3590 ProcessorState pstate (this);
3592 if (configure_processors_unlocked (0)) {
3594 configure_processors_unlocked (0); // it worked before we tried to add it ...
3599 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
3600 _session.set_dirty ();
3603 boost::shared_ptr<CapturingProcessor>
3604 Route::add_export_point()
3606 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
3607 if (!_capturing_processor) {
3609 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
3610 Glib::Threads::RWLock::WriterLock lw (_processor_lock);
3612 _capturing_processor.reset (new CapturingProcessor (_session));
3613 _capturing_processor->activate ();
3615 configure_processors_unlocked (0);
3619 return _capturing_processor;
3623 Route::update_signal_latency ()
3625 framecnt_t l = _output->user_latency();
3626 framecnt_t lamp = 0;
3627 bool before_amp = true;
3628 framecnt_t ltrim = 0;
3629 bool before_trim = true;
3631 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
3632 if ((*i)->active ()) {
3633 l += (*i)->signal_latency ();
3638 if ((*i) == _trim) {
3649 DEBUG_TRACE (DEBUG::Latency, string_compose ("%1: internal signal latency = %2\n", _name, l));
3651 // TODO: (lamp - _signal_latency) to sync to output (read-ahed), currently _roll_delay shifts this around
3652 _signal_latency_at_amp_position = lamp;
3653 _signal_latency_at_trim_position = ltrim;
3655 if (_signal_latency != l) {
3656 _signal_latency = l;
3657 signal_latency_changed (); /* EMIT SIGNAL */
3660 return _signal_latency;
3664 Route::set_user_latency (framecnt_t nframes)
3666 _output->set_user_latency (nframes);
3667 _session.update_latency_compensation ();
3671 Route::set_latency_compensation (framecnt_t longest_session_latency)
3673 framecnt_t old = _initial_delay;
3675 if (_signal_latency < longest_session_latency) {
3676 _initial_delay = longest_session_latency - _signal_latency;
3681 DEBUG_TRACE (DEBUG::Latency, string_compose (
3682 "%1: compensate for maximum latency of %2,"
3683 "given own latency of %3, using initial delay of %4\n",
3684 name(), longest_session_latency, _signal_latency, _initial_delay));
3686 if (_initial_delay != old) {
3687 initial_delay_changed (); /* EMIT SIGNAL */
3690 if (_session.transport_stopped()) {
3691 _roll_delay = _initial_delay;
3695 Route::SoloControllable::SoloControllable (std::string name, boost::shared_ptr<Route> r)
3696 : AutomationControl (r->session(),
3697 Evoral::Parameter (SoloAutomation),
3698 ParameterDescriptor(Evoral::Parameter (SoloAutomation)),
3699 boost::shared_ptr<AutomationList>(), name)
3702 boost::shared_ptr<AutomationList> gl(new AutomationList(Evoral::Parameter(SoloAutomation)));
3703 gl->set_interpolation(Evoral::ControlList::Discrete);
3708 Route::SoloControllable::set_value (double val)
3710 const bool bval = ((val >= 0.5) ? true : false);
3712 boost::shared_ptr<RouteList> rl (new RouteList);
3714 boost::shared_ptr<Route> r = _route.lock ();
3721 if (Config->get_solo_control_is_listen_control()) {
3722 _session.set_listen (rl, bval);
3724 _session.set_solo (rl, bval);
3729 Route::SoloControllable::get_value () const
3731 boost::shared_ptr<Route> r = _route.lock ();
3736 if (Config->get_solo_control_is_listen_control()) {
3737 return r->listening_via_monitor() ? GAIN_COEFF_UNITY : GAIN_COEFF_ZERO;
3739 return r->self_soloed() ? GAIN_COEFF_UNITY : GAIN_COEFF_ZERO;
3743 Route::MuteControllable::MuteControllable (std::string name, boost::shared_ptr<Route> r)
3744 : AutomationControl (r->session(),
3745 Evoral::Parameter (MuteAutomation),
3746 ParameterDescriptor (Evoral::Parameter (MuteAutomation)),
3747 boost::shared_ptr<AutomationList>(),
3751 boost::shared_ptr<AutomationList> gl(new AutomationList(Evoral::Parameter(MuteAutomation)));
3752 gl->set_interpolation(Evoral::ControlList::Discrete);
3757 Route::MuteControllable::set_superficial_value(bool muted)
3759 /* Note we can not use AutomationControl::set_value here since it will emit
3760 Changed(), but the value will not be correct to the observer. */
3762 bool to_list = _list && ((AutomationList*)_list.get())->automation_write();
3764 Control::set_double (muted, _session.transport_frame(), to_list);
3768 Route::MuteControllable::set_value (double val)
3770 const bool bval = ((val >= 0.5) ? true : false);
3772 boost::shared_ptr<Route> r = _route.lock ();
3777 if (_list && ((AutomationList*)_list.get())->automation_playback()) {
3778 // Playing back automation, set route mute directly
3779 r->set_mute (bval, this);
3781 // Set from user, queue mute event
3782 boost::shared_ptr<RouteList> rl (new RouteList);
3784 _session.set_mute (rl, bval, Session::rt_cleanup);
3787 // Set superficial/automation value to drive controller (and possibly record)
3788 set_superficial_value(bval);
3792 Route::MuteControllable::get_value () const
3794 if (_list && ((AutomationList*)_list.get())->automation_playback()) {
3795 // Playing back automation, get the value from the list
3796 return AutomationControl::get_value();
3799 // Not playing back automation, get the actual route mute value
3800 boost::shared_ptr<Route> r = _route.lock ();
3801 return (r && r->muted()) ? GAIN_COEFF_UNITY : GAIN_COEFF_ZERO;
3805 Route::set_block_size (pframes_t nframes)
3807 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
3808 (*i)->set_block_size (nframes);
3811 _session.ensure_buffers (n_process_buffers ());
3815 Route::protect_automation ()
3817 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i)
3818 (*i)->protect_automation();
3821 /** @param declick 1 to set a pending declick fade-in,
3822 * -1 to set a pending declick fade-out
3825 Route::set_pending_declick (int declick)
3828 /* this call is not allowed to turn off a pending declick */
3830 _pending_declick = declick;
3833 _pending_declick = 0;
3837 /** Shift automation forwards from a particular place, thereby inserting time.
3838 * Adds undo commands for any shifts that are performed.
3840 * @param pos Position to start shifting from.
3841 * @param frames Amount to shift forwards by.
3845 Route::shift (framepos_t pos, framecnt_t frames)
3847 /* gain automation */
3849 boost::shared_ptr<AutomationControl> gc = _amp->gain_control();
3851 XMLNode &before = gc->alist()->get_state ();
3852 gc->alist()->shift (pos, frames);
3853 XMLNode &after = gc->alist()->get_state ();
3854 _session.add_command (new MementoCommand<AutomationList> (*gc->alist().get(), &before, &after));
3857 /* gain automation */
3859 boost::shared_ptr<AutomationControl> gc = _trim->gain_control();
3861 XMLNode &before = gc->alist()->get_state ();
3862 gc->alist()->shift (pos, frames);
3863 XMLNode &after = gc->alist()->get_state ();
3864 _session.add_command (new MementoCommand<AutomationList> (*gc->alist().get(), &before, &after));
3867 // TODO mute automation ??
3869 /* pan automation */
3871 ControlSet::Controls& c (_pannable->controls());
3873 for (ControlSet::Controls::const_iterator ci = c.begin(); ci != c.end(); ++ci) {
3874 boost::shared_ptr<AutomationControl> pc = boost::dynamic_pointer_cast<AutomationControl> (ci->second);
3876 boost::shared_ptr<AutomationList> al = pc->alist();
3877 XMLNode& before = al->get_state ();
3878 al->shift (pos, frames);
3879 XMLNode& after = al->get_state ();
3880 _session.add_command (new MementoCommand<AutomationList> (*al.get(), &before, &after));
3885 /* redirect automation */
3887 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
3888 for (ProcessorList::iterator i = _processors.begin (); i != _processors.end (); ++i) {
3890 set<Evoral::Parameter> parameters = (*i)->what_can_be_automated();
3892 for (set<Evoral::Parameter>::const_iterator p = parameters.begin (); p != parameters.end (); ++p) {
3893 boost::shared_ptr<AutomationControl> ac = (*i)->automation_control (*p);
3895 boost::shared_ptr<AutomationList> al = ac->alist();
3896 XMLNode &before = al->get_state ();
3897 al->shift (pos, frames);
3898 XMLNode &after = al->get_state ();
3899 _session.add_command (new MementoCommand<AutomationList> (*al.get(), &before, &after));
3908 Route::save_as_template (const string& path, const string& name)
3910 XMLNode& node (state (false));
3913 IO::set_name_in_state (*node.children().front(), name);
3915 tree.set_root (&node);
3916 return tree.write (path.c_str());
3921 Route::set_name (const string& str)
3923 if (str == name()) {
3927 string name = Route::ensure_track_or_route_name (str, _session);
3928 SessionObject::set_name (name);
3930 bool ret = (_input->set_name(name) && _output->set_name(name));
3933 /* rename the main outs. Leave other IO processors
3934 * with whatever name they already have, because its
3935 * just fine as it is (it will not contain the route
3936 * name if its a port insert, port send or port return).
3940 if (_main_outs->set_name (name)) {
3941 /* XXX returning false here is stupid because
3942 we already changed the route name.
3952 /** Set the name of a route in an XML description.
3953 * @param node XML <Route> node to set the name in.
3954 * @param name New name.
3957 Route::set_name_in_state (XMLNode& node, string const & name)
3959 node.add_property (X_("name"), name);
3961 XMLNodeList children = node.children();
3962 for (XMLNodeIterator i = children.begin(); i != children.end(); ++i) {
3964 if ((*i)->name() == X_("IO")) {
3966 IO::set_name_in_state (**i, name);
3968 } else if ((*i)->name() == X_("Processor")) {
3970 XMLProperty* role = (*i)->property (X_("role"));
3971 if (role && role->value() == X_("Main")) {
3972 (*i)->add_property (X_("name"), name);
3975 } else if ((*i)->name() == X_("Diskstream")) {
3977 (*i)->add_property (X_("playlist"), string_compose ("%1.1", name).c_str());
3978 (*i)->add_property (X_("name"), name);
3984 boost::shared_ptr<Send>
3985 Route::internal_send_for (boost::shared_ptr<const Route> target) const
3987 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
3989 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
3990 boost::shared_ptr<InternalSend> send;
3992 if ((send = boost::dynamic_pointer_cast<InternalSend>(*i)) != 0) {
3993 if (send->target_route() == target) {
3999 return boost::shared_ptr<Send>();
4002 /** @param c Audio channel index.
4003 * @param yn true to invert phase, otherwise false.
4006 Route::set_phase_invert (uint32_t c, bool yn)
4008 if (_phase_invert[c] != yn) {
4009 _phase_invert[c] = yn;
4010 phase_invert_changed (); /* EMIT SIGNAL */
4011 _session.set_dirty ();
4016 Route::set_phase_invert (boost::dynamic_bitset<> p)
4018 if (_phase_invert != p) {
4020 phase_invert_changed (); /* EMIT SIGNAL */
4021 _session.set_dirty ();
4026 Route::phase_invert (uint32_t c) const
4028 return _phase_invert[c];
4031 boost::dynamic_bitset<>
4032 Route::phase_invert () const
4034 return _phase_invert;
4038 Route::set_denormal_protection (bool yn)
4040 if (_denormal_protection != yn) {
4041 _denormal_protection = yn;
4042 denormal_protection_changed (); /* EMIT SIGNAL */
4047 Route::denormal_protection () const
4049 return _denormal_protection;
4053 Route::set_active (bool yn, void* src)
4055 if (_session.transport_rolling()) {
4059 if (_route_group && src != _route_group && _route_group->is_active() && _route_group->is_route_active()) {
4060 _route_group->foreach_route (boost::bind (&Route::set_active, _1, yn, _route_group));
4064 if (_active != yn) {
4066 _input->set_active (yn);
4067 _output->set_active (yn);
4068 active_changed (); // EMIT SIGNAL
4069 _session.set_dirty ();
4073 boost::shared_ptr<Pannable>
4074 Route::pannable() const
4079 boost::shared_ptr<Panner>
4080 Route::panner() const
4083 return _main_outs->panner_shell()->panner();
4086 boost::shared_ptr<PannerShell>
4087 Route::panner_shell() const
4089 return _main_outs->panner_shell();
4092 boost::shared_ptr<AutomationControl>
4093 Route::gain_control() const
4095 return _amp->gain_control();
4098 boost::shared_ptr<AutomationControl>
4099 Route::get_control (const Evoral::Parameter& param)
4101 /* either we own the control or .... */
4103 boost::shared_ptr<AutomationControl> c = boost::dynamic_pointer_cast<AutomationControl>(control (param));
4107 /* maybe one of our processors does or ... */
4109 Glib::Threads::RWLock::ReaderLock rm (_processor_lock);
4110 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4111 if ((c = boost::dynamic_pointer_cast<AutomationControl>((*i)->control (param))) != 0) {
4119 /* nobody does so we'll make a new one */
4121 c = boost::dynamic_pointer_cast<AutomationControl>(control_factory(param));
4128 boost::shared_ptr<Processor>
4129 Route::nth_plugin (uint32_t n)
4131 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4132 ProcessorList::iterator i;
4134 for (i = _processors.begin(); i != _processors.end(); ++i) {
4135 if (boost::dynamic_pointer_cast<PluginInsert> (*i)) {
4142 return boost::shared_ptr<Processor> ();
4145 boost::shared_ptr<Processor>
4146 Route::nth_send (uint32_t n)
4148 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4149 ProcessorList::iterator i;
4151 for (i = _processors.begin(); i != _processors.end(); ++i) {
4152 if (boost::dynamic_pointer_cast<Send> (*i)) {
4159 return boost::shared_ptr<Processor> ();
4163 Route::has_io_processor_named (const string& name)
4165 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4166 ProcessorList::iterator i;
4168 for (i = _processors.begin(); i != _processors.end(); ++i) {
4169 if (boost::dynamic_pointer_cast<Send> (*i) ||
4170 boost::dynamic_pointer_cast<PortInsert> (*i)) {
4171 if ((*i)->name() == name) {
4180 MuteMaster::MutePoint
4181 Route::mute_points () const
4183 return _mute_master->mute_points ();
4187 Route::set_processor_positions ()
4189 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4191 bool had_amp = false;
4192 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
4193 (*i)->set_pre_fader (!had_amp);
4200 /** Called when there is a proposed change to the input port count */
4202 Route::input_port_count_changing (ChanCount to)
4204 list<pair<ChanCount, ChanCount> > c = try_configure_processors (to, 0);
4206 /* The processors cannot be configured with the new input arrangement, so
4212 /* The change is ok */
4216 /** Called when there is a proposed change to the output port count */
4218 Route::output_port_count_changing (ChanCount to)
4220 for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
4221 if (processor_out_streams.get(*t) > to.get(*t)) {
4225 /* The change is ok */
4230 Route::unknown_processors () const
4234 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4235 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
4236 if (boost::dynamic_pointer_cast<UnknownProcessor const> (*i)) {
4237 p.push_back ((*i)->name ());
4246 Route::update_port_latencies (PortSet& from, PortSet& to, bool playback, framecnt_t our_latency) const
4248 /* we assume that all our input ports feed all our output ports. its not
4249 universally true, but the alternative is way too corner-case to worry about.
4252 LatencyRange all_connections;
4255 all_connections.min = 0;
4256 all_connections.max = 0;
4258 all_connections.min = ~((pframes_t) 0);
4259 all_connections.max = 0;
4261 /* iterate over all "from" ports and determine the latency range for all of their
4262 connections to the "outside" (outside of this Route).
4265 for (PortSet::iterator p = from.begin(); p != from.end(); ++p) {
4269 p->get_connected_latency_range (range, playback);
4271 all_connections.min = min (all_connections.min, range.min);
4272 all_connections.max = max (all_connections.max, range.max);
4276 /* set the "from" port latencies to the max/min range of all their connections */
4278 for (PortSet::iterator p = from.begin(); p != from.end(); ++p) {
4279 p->set_private_latency_range (all_connections, playback);
4282 /* set the ports "in the direction of the flow" to the same value as above plus our own signal latency */
4284 all_connections.min += our_latency;
4285 all_connections.max += our_latency;
4287 for (PortSet::iterator p = to.begin(); p != to.end(); ++p) {
4288 p->set_private_latency_range (all_connections, playback);
4291 return all_connections.max;
4295 Route::set_private_port_latencies (bool playback) const
4297 framecnt_t own_latency = 0;
4299 /* Processor list not protected by lock: MUST BE CALLED FROM PROCESS THREAD
4300 OR LATENCY CALLBACK.
4302 This is called (early) from the latency callback. It computes the REAL
4303 latency associated with each port and stores the result as the "private"
4304 latency of the port. A later call to Route::set_public_port_latencies()
4305 sets all ports to the same value to reflect the fact that we do latency
4306 compensation and so all signals are delayed by the same amount as they
4307 flow through ardour.
4310 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
4311 if ((*i)->active ()) {
4312 own_latency += (*i)->signal_latency ();
4317 /* playback: propagate latency from "outside the route" to outputs to inputs */
4318 return update_port_latencies (_output->ports (), _input->ports (), true, own_latency);
4320 /* capture: propagate latency from "outside the route" to inputs to outputs */
4321 return update_port_latencies (_input->ports (), _output->ports (), false, own_latency);
4326 Route::set_public_port_latencies (framecnt_t value, bool playback) const
4328 /* this is called to set the JACK-visible port latencies, which take
4329 latency compensation into account.
4338 const PortSet& ports (_input->ports());
4339 for (PortSet::const_iterator p = ports.begin(); p != ports.end(); ++p) {
4340 p->set_public_latency_range (range, playback);
4345 const PortSet& ports (_output->ports());
4346 for (PortSet::const_iterator p = ports.begin(); p != ports.end(); ++p) {
4347 p->set_public_latency_range (range, playback);
4352 /** Put the invisible processors in the right place in _processors.
4353 * Must be called with a writer lock on _processor_lock held.
4356 __attribute__((annotate("realtime")))
4359 Route::setup_invisible_processors ()
4362 Glib::Threads::RWLock::WriterLock lm (_processor_lock, Glib::Threads::TRY_LOCK);
4363 assert (!lm.locked ());
4367 /* too early to be doing this stuff */
4371 /* we'll build this new list here and then use it
4373 * TODO put the ProcessorList is on the stack for RT-safety.
4376 ProcessorList new_processors;
4378 /* find visible processors */
4380 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4381 if ((*i)->display_to_user ()) {
4382 new_processors.push_back (*i);
4388 ProcessorList::iterator amp = new_processors.begin ();
4389 while (amp != new_processors.end() && *amp != _amp) {
4393 assert (amp != new_processors.end ());
4395 /* and the processor after the amp */
4397 ProcessorList::iterator after_amp = amp;
4403 switch (_meter_point) {
4405 assert (!_meter->display_to_user ());
4406 new_processors.push_front (_meter);
4409 assert (!_meter->display_to_user ());
4410 new_processors.insert (amp, _meter);
4412 case MeterPostFader:
4413 /* do nothing here */
4416 /* do nothing here */
4419 /* the meter is visible, so we don't touch it here */
4426 assert (_main_outs);
4427 assert (!_main_outs->display_to_user ());
4428 new_processors.push_back (_main_outs);
4430 /* iterator for the main outs */
4432 ProcessorList::iterator main = new_processors.end();
4435 /* OUTPUT METERING */
4437 if (_meter && (_meter_point == MeterOutput || _meter_point == MeterPostFader)) {
4438 assert (!_meter->display_to_user ());
4440 /* add the processor just before or just after the main outs */
4442 ProcessorList::iterator meter_point = main;
4444 if (_meter_point == MeterOutput) {
4447 new_processors.insert (meter_point, _meter);
4452 if (_monitor_send && !is_monitor ()) {
4453 assert (!_monitor_send->display_to_user ());
4454 if (Config->get_solo_control_is_listen_control()) {
4455 switch (Config->get_listen_position ()) {
4456 case PreFaderListen:
4457 switch (Config->get_pfl_position ()) {
4458 case PFLFromBeforeProcessors:
4459 new_processors.push_front (_monitor_send);
4461 case PFLFromAfterProcessors:
4462 new_processors.insert (amp, _monitor_send);
4465 _monitor_send->set_can_pan (false);
4467 case AfterFaderListen:
4468 switch (Config->get_afl_position ()) {
4469 case AFLFromBeforeProcessors:
4470 new_processors.insert (after_amp, _monitor_send);
4472 case AFLFromAfterProcessors:
4473 new_processors.insert (new_processors.end(), _monitor_send);
4476 _monitor_send->set_can_pan (true);
4480 new_processors.insert (new_processors.end(), _monitor_send);
4481 _monitor_send->set_can_pan (false);
4485 #if 0 // not used - just yet
4486 if (!is_master() && !is_monitor() && !is_auditioner()) {
4487 new_processors.push_front (_delayline);
4491 /* MONITOR CONTROL */
4493 if (_monitor_control && is_monitor ()) {
4494 assert (!_monitor_control->display_to_user ());
4495 new_processors.push_front (_monitor_control);
4498 /* INTERNAL RETURN */
4500 /* doing this here means that any monitor control will come just after
4505 assert (!_intreturn->display_to_user ());
4506 new_processors.push_front (_intreturn);
4509 if (_trim && _trim->active()) {
4510 assert (!_trim->display_to_user ());
4511 new_processors.push_front (_trim);
4513 /* EXPORT PROCESSOR */
4515 if (_capturing_processor) {
4516 assert (!_capturing_processor->display_to_user ());
4517 new_processors.push_front (_capturing_processor);
4520 _processors = new_processors;
4522 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4523 if (!(*i)->display_to_user () && !(*i)->active ()) {
4528 DEBUG_TRACE (DEBUG::Processors, string_compose ("%1: setup_invisible_processors\n", _name));
4529 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4530 DEBUG_TRACE (DEBUG::Processors, string_compose ("\t%1\n", (*i)->name ()));
4537 Glib::Threads::Mutex::Lock lm (AudioEngine::instance()->process_lock ());
4538 Glib::Threads::RWLock::ReaderLock lp (_processor_lock);
4542 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4543 boost::shared_ptr<Delivery> d = boost::dynamic_pointer_cast<Delivery>(*i);
4550 /** If the meter point is `Custom', make a note of where the meter is.
4551 * This is so that if the meter point is subsequently set to something else,
4552 * and then back to custom, we can put the meter back where it was last time
4553 * custom was enabled.
4555 * Must be called with the _processor_lock held.
4558 Route::maybe_note_meter_position ()
4560 if (_meter_point != MeterCustom) {
4564 _custom_meter_position_noted = true;
4565 /* custom meter points range from after trim to before panner/main_outs
4566 * this is a limitation by the current processor UI
4568 bool seen_trim = false;
4569 _processor_after_last_custom_meter.reset();
4570 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4571 if ((*i) == _trim) {
4574 if ((*i) == _main_outs) {
4575 _processor_after_last_custom_meter = *i;
4578 if (boost::dynamic_pointer_cast<PeakMeter> (*i)) {
4580 _processor_after_last_custom_meter = _trim;
4582 ProcessorList::iterator j = i;
4584 assert(j != _processors.end ()); // main_outs should be before
4585 _processor_after_last_custom_meter = *j;
4590 assert(_processor_after_last_custom_meter.lock());
4593 boost::shared_ptr<Processor>
4594 Route::processor_by_id (PBD::ID id) const
4596 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4597 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
4598 if ((*i)->id() == id) {
4603 return boost::shared_ptr<Processor> ();
4606 /** @return the monitoring state, or in other words what data we are pushing
4607 * into the route (data from the inputs, data from disk or silence)
4610 Route::monitoring_state () const
4612 return MonitoringInput;
4615 /** @return what we should be metering; either the data coming from the input
4616 * IO or the data that is flowing through the route.
4619 Route::metering_state () const
4621 return MeteringRoute;
4625 Route::has_external_redirects () const
4627 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
4629 /* ignore inactive processors and obviously ignore the main
4630 * outs since everything has them and we don't care.
4633 if ((*i)->active() && (*i) != _main_outs && (*i)->does_routing()) {
4641 boost::shared_ptr<Processor>
4642 Route::the_instrument () const
4644 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4645 return the_instrument_unlocked ();
4648 boost::shared_ptr<Processor>
4649 Route::the_instrument_unlocked () const
4651 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
4652 if (boost::dynamic_pointer_cast<PluginInsert>(*i)) {
4653 if ((*i)->input_streams().n_midi() > 0 &&
4654 (*i)->output_streams().n_audio() > 0) {
4659 return boost::shared_ptr<Processor>();
4665 Route::non_realtime_locate (framepos_t pos)
4668 _pannable->transport_located (pos);
4671 if (_delayline.get()) {
4672 _delayline.get()->flush();
4676 //Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
4677 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4679 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4680 (*i)->transport_located (pos);
4686 Route::fill_buffers_with_input (BufferSet& bufs, boost::shared_ptr<IO> io, pframes_t nframes)
4693 * We don't currently mix MIDI input together, so we don't need the
4694 * complex logic of the audio case.
4697 n_buffers = bufs.count().n_midi ();
4699 for (i = 0; i < n_buffers; ++i) {
4701 boost::shared_ptr<MidiPort> source_port = io->midi (i);
4702 MidiBuffer& buf (bufs.get_midi (i));
4705 buf.copy (source_port->get_midi_buffer(nframes));
4707 buf.silence (nframes);
4713 n_buffers = bufs.count().n_audio();
4715 size_t n_ports = io->n_ports().n_audio();
4716 float scaling = 1.0f;
4718 if (n_ports > n_buffers) {
4719 scaling = ((float) n_buffers) / n_ports;
4722 for (i = 0; i < n_ports; ++i) {
4724 /* if there are more ports than buffers, map them onto buffers
4725 * in a round-robin fashion
4728 boost::shared_ptr<AudioPort> source_port = io->audio (i);
4729 AudioBuffer& buf (bufs.get_audio (i%n_buffers));
4732 if (i < n_buffers) {
4734 /* first time through just copy a channel into
4738 buf.read_from (source_port->get_audio_buffer (nframes), nframes);
4740 if (scaling != 1.0f) {
4741 buf.apply_gain (scaling, nframes);
4746 /* on subsequent times around, merge data from
4747 * the port with what is already there
4750 if (scaling != 1.0f) {
4751 buf.accumulate_with_gain_from (source_port->get_audio_buffer (nframes), nframes, 0, scaling);
4753 buf.accumulate_from (source_port->get_audio_buffer (nframes), nframes);
4758 /* silence any remaining buffers */
4760 for (; i < n_buffers; ++i) {
4761 AudioBuffer& buf (bufs.get_audio (i));
4762 buf.silence (nframes);
4765 /* establish the initial setup of the buffer set, reflecting what was
4766 copied into it. unless, of course, we are the auditioner, in which
4767 case nothing was fed into it from the inputs at all.
4770 if (!is_auditioner()) {
4771 bufs.set_count (io->n_ports());