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 (boost::dynamic_pointer_cast<UnknownProcessor> (*p)) {
1882 DEBUG_TRACE (DEBUG::Processors, "--- CONFIGURE ABORTED due to unknown processor.\n");
1883 DEBUG_TRACE (DEBUG::Processors, "}\n");
1884 return list<pair<ChanCount, ChanCount> > ();
1887 if ((*p)->can_support_io_configuration(in, out)) {
1888 DEBUG_TRACE (DEBUG::Processors, string_compose ("\t%1 ID=%2 in=%3 out=%4\n",(*p)->name(), (*p)->id(), in, out));
1889 configuration.push_back(make_pair(in, out));
1896 DEBUG_TRACE (DEBUG::Processors, "---- CONFIGURATION FAILED.\n");
1897 DEBUG_TRACE (DEBUG::Processors, string_compose ("---- %1 cannot support in=%2 out=%3\n", (*p)->name(), in, out));
1898 DEBUG_TRACE (DEBUG::Processors, "}\n");
1899 return list<pair<ChanCount, ChanCount> > ();
1903 DEBUG_TRACE (DEBUG::Processors, "}\n");
1905 return configuration;
1908 /** Set the input/output configuration of each processor in the processors list.
1909 * Caller must hold process lock.
1910 * Return 0 on success, otherwise configuration is impossible.
1913 Route::configure_processors_unlocked (ProcessorStreams* err)
1915 #ifndef PLATFORM_WINDOWS
1916 assert (!AudioEngine::instance()->process_lock().trylock());
1919 if (_in_configure_processors) {
1923 /* put invisible processors where they should be */
1924 setup_invisible_processors ();
1926 _in_configure_processors = true;
1928 list<pair<ChanCount, ChanCount> > configuration = try_configure_processors_unlocked (input_streams (), err);
1930 if (configuration.empty ()) {
1931 _in_configure_processors = false;
1936 bool seen_mains_out = false;
1937 processor_out_streams = _input->n_ports();
1938 processor_max_streams.reset();
1940 list< pair<ChanCount,ChanCount> >::iterator c = configuration.begin();
1941 for (ProcessorList::iterator p = _processors.begin(); p != _processors.end(); ++p, ++c) {
1943 if (boost::dynamic_pointer_cast<UnknownProcessor> (*p)) {
1947 (*p)->configure_io(c->first, c->second);
1948 processor_max_streams = ChanCount::max(processor_max_streams, c->first);
1949 processor_max_streams = ChanCount::max(processor_max_streams, c->second);
1951 boost::shared_ptr<PluginInsert> pi;
1952 if ((pi = boost::dynamic_pointer_cast<PluginInsert>(*p)) != 0) {
1953 /* plugins connected via Split Match may have more channels.
1954 * route/scratch buffers are needed for all of them*/
1955 processor_max_streams = ChanCount::max(processor_max_streams, pi->input_streams());
1956 processor_max_streams = ChanCount::max(processor_max_streams, pi->natural_input_streams());
1960 if (boost::dynamic_pointer_cast<Delivery> (*p)
1961 && boost::dynamic_pointer_cast<Delivery> (*p)->role() == Delivery::Main) {
1962 /* main delivery will increase port count to match input.
1963 * the Delivery::Main is usually the last processor - followed only by
1966 seen_mains_out = true;
1968 if (!seen_mains_out) {
1969 processor_out_streams = out;
1975 _meter->set_max_channels (processor_max_streams);
1978 /* make sure we have sufficient scratch buffers to cope with the new processor
1981 _session.ensure_buffers (n_process_buffers ());
1983 DEBUG_TRACE (DEBUG::Processors, string_compose ("%1: configuration complete\n", _name));
1985 _in_configure_processors = false;
1989 /** Set all visible processors to a given active state (except Fader, whose state is not changed)
1990 * @param state New active state for those processors.
1993 Route::all_visible_processors_active (bool state)
1995 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
1997 if (_processors.empty()) {
2001 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
2002 if (!(*i)->display_to_user() || boost::dynamic_pointer_cast<Amp> (*i)) {
2009 (*i)->deactivate ();
2013 _session.set_dirty ();
2017 Route::processors_reorder_needs_configure (const ProcessorList& new_order)
2019 /* check if re-order requires re-configuration of any processors
2020 * -> compare channel configuration for all processors
2022 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
2023 ChanCount c = input_streams ();
2025 for (ProcessorList::const_iterator j = new_order.begin(); j != new_order.end(); ++j) {
2027 if (c != (*j)->input_streams()) {
2030 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
2033 if ((*i)->input_streams() != c) {
2036 c = (*i)->output_streams();
2048 __attribute__((annotate("realtime")))
2051 Route::apply_processor_order (const ProcessorList& new_order)
2053 /* need to hold processor_lock; either read or write lock
2054 * and the engine process_lock.
2055 * Due to r/w lock ambiguity we can only assert the latter
2057 assert (!AudioEngine::instance()->process_lock().trylock());
2060 /* "new_order" is an ordered list of processors to be positioned according to "placement".
2061 * NOTE: all processors in "new_order" MUST be marked as display_to_user(). There maybe additional
2062 * processors in the current actual processor list that are hidden. Any visible processors
2063 * in the current list but not in "new_order" will be assumed to be deleted.
2066 /* "as_it_will_be" and "_processors" are lists of shared pointers.
2067 * actual memory usage is small, but insert/erase is not actually rt-safe :(
2068 * (note though that ::processors_reorder_needs_configure() ensured that
2069 * this function will only ever be called from the rt-thread if no processor were removed)
2071 * either way, I can't proove it, but an x-run due to re-order here is less likley
2072 * than an x-run-less 'ardour-silent cycle' both of which effectively "click".
2075 ProcessorList as_it_will_be;
2076 ProcessorList::iterator oiter;
2077 ProcessorList::const_iterator niter;
2079 oiter = _processors.begin();
2080 niter = new_order.begin();
2082 while (niter != new_order.end()) {
2084 /* if the next processor in the old list is invisible (i.e. should not be in the new order)
2085 then append it to the temp list.
2087 Otherwise, see if the next processor in the old list is in the new list. if not,
2088 its been deleted. If its there, append it to the temp list.
2091 if (oiter == _processors.end()) {
2093 /* no more elements in the old list, so just stick the rest of
2094 the new order onto the temp list.
2097 as_it_will_be.insert (as_it_will_be.end(), niter, new_order.end());
2098 while (niter != new_order.end()) {
2105 if (!(*oiter)->display_to_user()) {
2107 as_it_will_be.push_back (*oiter);
2111 /* visible processor: check that its in the new order */
2113 if (find (new_order.begin(), new_order.end(), (*oiter)) == new_order.end()) {
2114 /* deleted: do nothing, shared_ptr<> will clean up */
2116 /* ignore this one, and add the next item from the new order instead */
2117 as_it_will_be.push_back (*niter);
2122 /* now remove from old order - its taken care of no matter what */
2123 oiter = _processors.erase (oiter);
2127 _processors.insert (oiter, as_it_will_be.begin(), as_it_will_be.end());
2129 /* If the meter is in a custom position, find it and make a rough note of its position */
2130 maybe_note_meter_position ();
2134 Route::reorder_processors (const ProcessorList& new_order, ProcessorStreams* err)
2136 // it a change is already queued, wait for it
2137 // (unless engine is stopped. apply immediately and proceed
2138 while (g_atomic_int_get (&_pending_process_reorder)) {
2139 if (!AudioEngine::instance()->running()) {
2140 DEBUG_TRACE (DEBUG::Processors, "offline apply queued processor re-order.\n");
2141 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
2143 apply_processor_order(_pending_processor_order);
2144 setup_invisible_processors ();
2146 g_atomic_int_set (&_pending_process_reorder, 0);
2148 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
2149 set_processor_positions ();
2151 // TODO rather use a semaphore or something.
2152 // but since ::reorder_processors() is called
2153 // from the GUI thread, this is fine..
2158 if (processors_reorder_needs_configure (new_order) || !AudioEngine::instance()->running()) {
2160 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
2161 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
2162 ProcessorState pstate (this);
2164 apply_processor_order (new_order);
2166 if (configure_processors_unlocked (err)) {
2174 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
2175 set_processor_positions ();
2178 DEBUG_TRACE (DEBUG::Processors, "Queue clickless processor re-order.\n");
2179 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
2181 // _pending_processor_order is protected by _processor_lock
2182 _pending_processor_order = new_order;
2183 g_atomic_int_set (&_pending_process_reorder, 1);
2196 Route::get_template()
2198 return state(false);
2202 Route::state(bool full_state)
2204 XMLNode *node = new XMLNode("Route");
2205 ProcessorList::iterator i;
2208 id().print (buf, sizeof (buf));
2209 node->add_property("id", buf);
2210 node->add_property ("name", _name);
2211 node->add_property("default-type", _default_type.to_string());
2214 node->add_property("flags", enum_2_string (_flags));
2217 node->add_property("active", _active?"yes":"no");
2219 boost::to_string (_phase_invert, p);
2220 node->add_property("phase-invert", p);
2221 node->add_property("denormal-protection", _denormal_protection?"yes":"no");
2222 node->add_property("meter-point", enum_2_string (_meter_point));
2224 node->add_property("meter-type", enum_2_string (_meter_type));
2227 node->add_property("route-group", _route_group->name());
2230 snprintf (buf, sizeof (buf), "%d", _order_key);
2231 node->add_property ("order-key", buf);
2232 node->add_property ("self-solo", (_self_solo ? "yes" : "no"));
2233 snprintf (buf, sizeof (buf), "%d", _soloed_by_others_upstream);
2234 node->add_property ("soloed-by-upstream", buf);
2235 snprintf (buf, sizeof (buf), "%d", _soloed_by_others_downstream);
2236 node->add_property ("soloed-by-downstream", buf);
2237 node->add_property ("solo-isolated", solo_isolated() ? "yes" : "no");
2238 node->add_property ("solo-safe", _solo_safe ? "yes" : "no");
2240 node->add_child_nocopy (_input->state (full_state));
2241 node->add_child_nocopy (_output->state (full_state));
2242 node->add_child_nocopy (_solo_control->get_state ());
2243 node->add_child_nocopy (_mute_control->get_state ());
2244 node->add_child_nocopy (_mute_master->get_state ());
2247 node->add_child_nocopy (Automatable::get_automation_xml_state ());
2250 XMLNode* remote_control_node = new XMLNode (X_("RemoteControl"));
2251 snprintf (buf, sizeof (buf), "%d", _remote_control_id);
2252 remote_control_node->add_property (X_("id"), buf);
2253 node->add_child_nocopy (*remote_control_node);
2255 if (_comment.length()) {
2256 XMLNode *cmt = node->add_child ("Comment");
2257 cmt->add_content (_comment);
2261 node->add_child_nocopy (_pannable->state (full_state));
2264 for (i = _processors.begin(); i != _processors.end(); ++i) {
2266 /* template save: do not include internal sends functioning as
2267 aux sends because the chance of the target ID
2268 in the session where this template is used
2271 similarly, do not save listen sends which connect to
2272 the monitor section, because these will always be
2275 boost::shared_ptr<InternalSend> is;
2277 if ((is = boost::dynamic_pointer_cast<InternalSend> (*i)) != 0) {
2278 if (is->role() == Delivery::Listen) {
2283 node->add_child_nocopy((*i)->state (full_state));
2287 node->add_child_copy (*_extra_xml);
2290 if (_custom_meter_position_noted) {
2291 boost::shared_ptr<Processor> after = _processor_after_last_custom_meter.lock ();
2293 after->id().print (buf, sizeof (buf));
2294 node->add_property (X_("processor-after-last-custom-meter"), buf);
2302 Route::set_state (const XMLNode& node, int version)
2304 if (version < 3000) {
2305 return set_state_2X (node, version);
2309 XMLNodeConstIterator niter;
2311 const XMLProperty *prop;
2313 if (node.name() != "Route"){
2314 error << string_compose(_("Bad node sent to Route::set_state() [%1]"), node.name()) << endmsg;
2318 if ((prop = node.property (X_("name"))) != 0) {
2319 Route::set_name (prop->value());
2323 _initial_io_setup = true;
2325 if ((prop = node.property (X_("flags"))) != 0) {
2326 _flags = Flag (string_2_enum (prop->value(), _flags));
2331 if (is_master() || is_monitor() || is_auditioner()) {
2332 _mute_master->set_solo_ignore (true);
2336 /* monitor bus does not get a panner, but if (re)created
2337 via XML, it will already have one by the time we
2338 call ::set_state(). so ... remove it.
2343 /* add all processors (except amp, which is always present) */
2345 nlist = node.children();
2346 XMLNode processor_state (X_("processor_state"));
2348 Stateful::save_extra_xml (node);
2350 for (niter = nlist.begin(); niter != nlist.end(); ++niter){
2354 if (child->name() == IO::state_node_name) {
2355 if ((prop = child->property (X_("direction"))) == 0) {
2359 if (prop->value() == "Input") {
2360 _input->set_state (*child, version);
2361 } else if (prop->value() == "Output") {
2362 _output->set_state (*child, version);
2366 if (child->name() == X_("Processor")) {
2367 processor_state.add_child_copy (*child);
2370 if (child->name() == X_("Pannable")) {
2372 _pannable->set_state (*child, version);
2374 warning << string_compose (_("Pannable state found for route (%1) without a panner!"), name()) << endmsg;
2379 if ((prop = node.property (X_("meter-point"))) != 0) {
2380 MeterPoint mp = MeterPoint (string_2_enum (prop->value (), _meter_point));
2381 set_meter_point (mp, true);
2383 _meter->set_display_to_user (_meter_point == MeterCustom);
2387 if ((prop = node.property (X_("meter-type"))) != 0) {
2388 _meter_type = MeterType (string_2_enum (prop->value (), _meter_type));
2391 _initial_io_setup = false;
2393 set_processor_state (processor_state);
2395 // this looks up the internal instrument in processors
2396 reset_instrument_info();
2398 if ((prop = node.property ("self-solo")) != 0) {
2399 set_self_solo (string_is_affirmative (prop->value()));
2402 if ((prop = node.property ("soloed-by-upstream")) != 0) {
2403 _soloed_by_others_upstream = 0; // needed for mod_.... () to work
2404 mod_solo_by_others_upstream (atoi (prop->value()));
2407 if ((prop = node.property ("soloed-by-downstream")) != 0) {
2408 _soloed_by_others_downstream = 0; // needed for mod_.... () to work
2409 mod_solo_by_others_downstream (atoi (prop->value()));
2412 if ((prop = node.property ("solo-isolated")) != 0) {
2413 set_solo_isolated (string_is_affirmative (prop->value()), this);
2416 if ((prop = node.property ("solo-safe")) != 0) {
2417 set_solo_safe (string_is_affirmative (prop->value()), this);
2420 if ((prop = node.property (X_("phase-invert"))) != 0) {
2421 set_phase_invert (boost::dynamic_bitset<> (prop->value ()));
2424 if ((prop = node.property (X_("denormal-protection"))) != 0) {
2425 set_denormal_protection (string_is_affirmative (prop->value()));
2428 if ((prop = node.property (X_("active"))) != 0) {
2429 bool yn = string_is_affirmative (prop->value());
2430 _active = !yn; // force switch
2431 set_active (yn, this);
2434 if ((prop = node.property (X_("order-key"))) != 0) { // New order key (no separate mixer/editor ordering)
2435 set_order_key (atoi(prop->value()));
2438 if ((prop = node.property (X_("order-keys"))) != 0) { // Deprecated order keys
2442 string::size_type colon, equal;
2443 string remaining = prop->value();
2445 while (remaining.length()) {
2447 if ((equal = remaining.find_first_of ('=')) == string::npos || equal == remaining.length()) {
2448 error << string_compose (_("badly formed order key string in state file! [%1] ... ignored."), remaining)
2451 if (sscanf (remaining.substr (equal+1).c_str(), "%d", &n) != 1) {
2452 error << string_compose (_("badly formed order key string in state file! [%1] ... ignored."), remaining)
2455 string keyname = remaining.substr (0, equal);
2457 if ((keyname == "EditorSort") || (keyname == "editor")) {
2458 cerr << "Setting " << name() << " order key to " << n << " using saved Editor order." << endl;
2464 colon = remaining.find_first_of (':');
2466 if (colon != string::npos) {
2467 remaining = remaining.substr (colon+1);
2474 if ((prop = node.property (X_("processor-after-last-custom-meter"))) != 0) {
2475 PBD::ID id (prop->value ());
2476 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
2477 ProcessorList::const_iterator i = _processors.begin ();
2478 while (i != _processors.end() && (*i)->id() != id) {
2482 if (i != _processors.end ()) {
2483 _processor_after_last_custom_meter = *i;
2484 _custom_meter_position_noted = true;
2488 for (niter = nlist.begin(); niter != nlist.end(); ++niter){
2491 if (child->name() == X_("Comment")) {
2493 /* XXX this is a terrible API design in libxml++ */
2495 XMLNode *cmt = *(child->children().begin());
2496 _comment = cmt->content();
2498 } else if (child->name() == Controllable::xml_node_name && (prop = child->property("name")) != 0) {
2499 if (prop->value() == "solo") {
2500 _solo_control->set_state (*child, version);
2501 } else if (prop->value() == "mute") {
2502 _mute_control->set_state (*child, version);
2505 } else if (child->name() == X_("RemoteControl")) {
2506 if ((prop = child->property (X_("id"))) != 0) {
2508 sscanf (prop->value().c_str(), "%d", &x);
2509 set_remote_control_id_internal (x);
2512 } else if (child->name() == X_("MuteMaster")) {
2513 _mute_master->set_state (*child, version);
2515 } else if (child->name() == Automatable::xml_node_name) {
2516 set_automation_xml_state (*child, Evoral::Parameter(NullAutomation));
2524 Route::set_state_2X (const XMLNode& node, int version)
2526 LocaleGuard lg (X_("C"));
2528 XMLNodeConstIterator niter;
2530 const XMLProperty *prop;
2532 /* 2X things which still remain to be handled:
2538 if (node.name() != "Route") {
2539 error << string_compose(_("Bad node sent to Route::set_state() [%1]"), node.name()) << endmsg;
2543 if ((prop = node.property (X_("flags"))) != 0) {
2544 string f = prop->value ();
2545 boost::replace_all (f, "ControlOut", "MonitorOut");
2546 _flags = Flag (string_2_enum (f, _flags));
2551 if (is_master() || is_monitor() || is_auditioner()) {
2552 _mute_master->set_solo_ignore (true);
2555 if ((prop = node.property (X_("phase-invert"))) != 0) {
2556 boost::dynamic_bitset<> p (_input->n_ports().n_audio ());
2557 if (string_is_affirmative (prop->value ())) {
2560 set_phase_invert (p);
2563 if ((prop = node.property (X_("denormal-protection"))) != 0) {
2564 set_denormal_protection (string_is_affirmative (prop->value()));
2567 if ((prop = node.property (X_("soloed"))) != 0) {
2568 bool yn = string_is_affirmative (prop->value());
2570 /* XXX force reset of solo status */
2572 set_solo (yn, this);
2575 if ((prop = node.property (X_("muted"))) != 0) {
2578 bool muted = string_is_affirmative (prop->value());
2584 if ((prop = node.property (X_("mute-affects-pre-fader"))) != 0) {
2586 if (string_is_affirmative (prop->value())){
2587 mute_point = mute_point + "PreFader";
2592 if ((prop = node.property (X_("mute-affects-post-fader"))) != 0) {
2594 if (string_is_affirmative (prop->value())){
2597 mute_point = mute_point + ",";
2600 mute_point = mute_point + "PostFader";
2605 if ((prop = node.property (X_("mute-affects-control-outs"))) != 0) {
2607 if (string_is_affirmative (prop->value())){
2610 mute_point = mute_point + ",";
2613 mute_point = mute_point + "Listen";
2618 if ((prop = node.property (X_("mute-affects-main-outs"))) != 0) {
2620 if (string_is_affirmative (prop->value())){
2623 mute_point = mute_point + ",";
2626 mute_point = mute_point + "Main";
2630 _mute_master->set_mute_points (mute_point);
2631 _mute_master->set_muted_by_self (true);
2635 if ((prop = node.property (X_("meter-point"))) != 0) {
2636 _meter_point = MeterPoint (string_2_enum (prop->value (), _meter_point));
2639 /* do not carry over edit/mix groups from 2.X because (a) its hard (b) they
2640 don't mean the same thing.
2643 if ((prop = node.property (X_("order-keys"))) != 0) {
2647 string::size_type colon, equal;
2648 string remaining = prop->value();
2650 while (remaining.length()) {
2652 if ((equal = remaining.find_first_of ('=')) == string::npos || equal == remaining.length()) {
2653 error << string_compose (_("badly formed order key string in state file! [%1] ... ignored."), remaining)
2656 if (sscanf (remaining.substr (equal+1).c_str(), "%d", &n) != 1) {
2657 error << string_compose (_("badly formed order key string in state file! [%1] ... ignored."), remaining)
2660 string keyname = remaining.substr (0, equal);
2662 if (keyname == "EditorSort" || keyname == "editor") {
2663 info << string_compose(_("Converting deprecated order key for %1 using Editor order %2"), name (), n) << endmsg;
2669 colon = remaining.find_first_of (':');
2671 if (colon != string::npos) {
2672 remaining = remaining.substr (colon+1);
2681 nlist = node.children ();
2682 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
2686 if (child->name() == IO::state_node_name) {
2688 /* there is a note in IO::set_state_2X() about why we have to call
2692 _input->set_state_2X (*child, version, true);
2693 _output->set_state_2X (*child, version, false);
2695 if ((prop = child->property (X_("name"))) != 0) {
2696 Route::set_name (prop->value ());
2701 if ((prop = child->property (X_("active"))) != 0) {
2702 bool yn = string_is_affirmative (prop->value());
2703 _active = !yn; // force switch
2704 set_active (yn, this);
2707 if ((prop = child->property (X_("gain"))) != 0) {
2710 if (sscanf (prop->value().c_str(), "%f", &val) == 1) {
2711 _amp->gain_control()->set_value (val);
2715 /* Set up Panners in the IO */
2716 XMLNodeList io_nlist = child->children ();
2718 XMLNodeConstIterator io_niter;
2721 for (io_niter = io_nlist.begin(); io_niter != io_nlist.end(); ++io_niter) {
2723 io_child = *io_niter;
2725 if (io_child->name() == X_("Panner")) {
2726 _main_outs->panner_shell()->set_state(*io_child, version);
2727 } else if (io_child->name() == X_("Automation")) {
2728 /* IO's automation is for the fader */
2729 _amp->set_automation_xml_state (*io_child, Evoral::Parameter (GainAutomation));
2735 XMLNodeList redirect_nodes;
2737 for (niter = nlist.begin(); niter != nlist.end(); ++niter){
2741 if (child->name() == X_("Send") || child->name() == X_("Insert")) {
2742 redirect_nodes.push_back(child);
2747 set_processor_state_2X (redirect_nodes, version);
2749 Stateful::save_extra_xml (node);
2751 for (niter = nlist.begin(); niter != nlist.end(); ++niter){
2754 if (child->name() == X_("Comment")) {
2756 /* XXX this is a terrible API design in libxml++ */
2758 XMLNode *cmt = *(child->children().begin());
2759 _comment = cmt->content();
2761 } else if (child->name() == Controllable::xml_node_name && (prop = child->property("name")) != 0) {
2762 if (prop->value() == X_("solo")) {
2763 _solo_control->set_state (*child, version);
2764 } else if (prop->value() == X_("mute")) {
2765 _mute_control->set_state (*child, version);
2768 } else if (child->name() == X_("RemoteControl")) {
2769 if ((prop = child->property (X_("id"))) != 0) {
2771 sscanf (prop->value().c_str(), "%d", &x);
2772 set_remote_control_id_internal (x);
2782 Route::get_processor_state ()
2784 XMLNode* root = new XMLNode (X_("redirects"));
2785 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
2786 root->add_child_nocopy ((*i)->state (true));
2793 Route::set_processor_state_2X (XMLNodeList const & nList, int version)
2795 /* We don't bother removing existing processors not in nList, as this
2796 method will only be called when creating a Route from scratch, not
2797 for undo purposes. Just put processors in at the appropriate place
2801 for (XMLNodeConstIterator i = nList.begin(); i != nList.end(); ++i) {
2802 add_processor_from_xml_2X (**i, version);
2807 Route::set_processor_state (const XMLNode& node)
2809 const XMLNodeList &nlist = node.children();
2810 XMLNodeConstIterator niter;
2811 ProcessorList new_order;
2812 bool must_configure = false;
2814 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
2816 XMLProperty* prop = (*niter)->property ("type");
2818 if (prop->value() == "amp") {
2819 _amp->set_state (**niter, Stateful::current_state_version);
2820 new_order.push_back (_amp);
2821 } else if (prop->value() == "trim") {
2822 _trim->set_state (**niter, Stateful::current_state_version);
2823 new_order.push_back (_trim);
2824 } else if (prop->value() == "meter") {
2825 _meter->set_state (**niter, Stateful::current_state_version);
2826 new_order.push_back (_meter);
2827 } else if (prop->value() == "delay") {
2829 _delayline->set_state (**niter, Stateful::current_state_version);
2830 new_order.push_back (_delayline);
2832 } else if (prop->value() == "main-outs") {
2833 _main_outs->set_state (**niter, Stateful::current_state_version);
2834 } else if (prop->value() == "intreturn") {
2836 _intreturn.reset (new InternalReturn (_session));
2837 must_configure = true;
2839 _intreturn->set_state (**niter, Stateful::current_state_version);
2840 } else if (is_monitor() && prop->value() == "monitor") {
2841 if (!_monitor_control) {
2842 _monitor_control.reset (new MonitorProcessor (_session));
2843 must_configure = true;
2845 _monitor_control->set_state (**niter, Stateful::current_state_version);
2846 } else if (prop->value() == "capture") {
2847 /* CapturingProcessor should never be restored, it's always
2848 added explicitly when needed */
2850 ProcessorList::iterator o;
2852 for (o = _processors.begin(); o != _processors.end(); ++o) {
2853 XMLProperty* id_prop = (*niter)->property(X_("id"));
2854 if (id_prop && (*o)->id() == id_prop->value()) {
2855 (*o)->set_state (**niter, Stateful::current_state_version);
2856 new_order.push_back (*o);
2861 // If the processor (*niter) is not on the route then create it
2863 if (o == _processors.end()) {
2865 boost::shared_ptr<Processor> processor;
2867 if (prop->value() == "intsend") {
2869 processor.reset (new InternalSend (_session, _pannable, _mute_master, boost::dynamic_pointer_cast<ARDOUR::Route>(shared_from_this()), boost::shared_ptr<Route>(), Delivery::Aux, true));
2871 } else if (prop->value() == "ladspa" || prop->value() == "Ladspa" ||
2872 prop->value() == "lv2" ||
2873 prop->value() == "windows-vst" ||
2874 prop->value() == "lxvst" ||
2875 prop->value() == "audiounit") {
2877 processor.reset (new PluginInsert(_session));
2879 } else if (prop->value() == "port") {
2881 processor.reset (new PortInsert (_session, _pannable, _mute_master));
2883 } else if (prop->value() == "send") {
2885 processor.reset (new Send (_session, _pannable, _mute_master, Delivery::Send, true));
2888 error << string_compose(_("unknown Processor type \"%1\"; ignored"), prop->value()) << endmsg;
2892 if (processor->set_state (**niter, Stateful::current_state_version) != 0) {
2893 /* This processor could not be configured. Turn it into a UnknownProcessor */
2894 processor.reset (new UnknownProcessor (_session, **niter));
2897 /* we have to note the monitor send here, otherwise a new one will be created
2898 and the state of this one will be lost.
2900 boost::shared_ptr<InternalSend> isend = boost::dynamic_pointer_cast<InternalSend> (processor);
2901 if (isend && isend->role() == Delivery::Listen) {
2902 _monitor_send = isend;
2905 /* it doesn't matter if invisible processors are added here, as they
2906 will be sorted out by setup_invisible_processors () shortly.
2909 new_order.push_back (processor);
2910 must_configure = true;
2916 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
2917 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
2918 _processors = new_order;
2920 if (must_configure) {
2921 configure_processors_unlocked (0);
2924 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
2926 (*i)->set_owner (this);
2927 (*i)->ActiveChanged.connect_same_thread (*this, boost::bind (&Session::update_latency_compensation, &_session, false));
2929 boost::shared_ptr<PluginInsert> pi;
2931 if ((pi = boost::dynamic_pointer_cast<PluginInsert>(*i)) != 0) {
2932 if (pi->has_no_inputs ()) {
2933 _have_internal_generator = true;
2940 reset_instrument_info ();
2941 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
2942 set_processor_positions ();
2946 Route::curve_reallocate ()
2948 // _gain_automation_curve.finish_resize ();
2949 // _pan_automation_curve.finish_resize ();
2953 Route::silence (framecnt_t nframes)
2955 Glib::Threads::RWLock::ReaderLock lm (_processor_lock, Glib::Threads::TRY_LOCK);
2960 silence_unlocked (nframes);
2964 Route::silence_unlocked (framecnt_t nframes)
2966 /* Must be called with the processor lock held */
2970 _output->silence (nframes);
2972 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
2973 boost::shared_ptr<PluginInsert> pi;
2975 if (!_active && (pi = boost::dynamic_pointer_cast<PluginInsert> (*i)) != 0) {
2976 // skip plugins, they don't need anything when we're not active
2980 (*i)->silence (nframes);
2983 if (nframes == _session.get_block_size()) {
2990 Route::add_internal_return ()
2993 _intreturn.reset (new InternalReturn (_session));
2994 add_processor (_intreturn, PreFader);
2999 Route::add_send_to_internal_return (InternalSend* send)
3001 Glib::Threads::RWLock::ReaderLock rm (_processor_lock);
3003 for (ProcessorList::const_iterator x = _processors.begin(); x != _processors.end(); ++x) {
3004 boost::shared_ptr<InternalReturn> d = boost::dynamic_pointer_cast<InternalReturn>(*x);
3007 return d->add_send (send);
3013 Route::remove_send_from_internal_return (InternalSend* send)
3015 Glib::Threads::RWLock::ReaderLock rm (_processor_lock);
3017 for (ProcessorList::const_iterator x = _processors.begin(); x != _processors.end(); ++x) {
3018 boost::shared_ptr<InternalReturn> d = boost::dynamic_pointer_cast<InternalReturn>(*x);
3021 return d->remove_send (send);
3027 Route::enable_monitor_send ()
3029 /* Caller must hold process lock */
3030 assert (!AudioEngine::instance()->process_lock().trylock());
3032 /* master never sends to monitor section via the normal mechanism */
3033 assert (!is_master ());
3034 assert (!is_monitor ());
3036 /* make sure we have one */
3037 if (!_monitor_send) {
3038 _monitor_send.reset (new InternalSend (_session, _pannable, _mute_master, boost::dynamic_pointer_cast<ARDOUR::Route>(shared_from_this()), _session.monitor_out(), Delivery::Listen));
3039 _monitor_send->set_display_to_user (false);
3043 configure_processors (0);
3046 /** Add an aux send to a route.
3047 * @param route route to send to.
3048 * @param before Processor to insert before, or 0 to insert at the end.
3051 Route::add_aux_send (boost::shared_ptr<Route> route, boost::shared_ptr<Processor> before)
3053 assert (route != _session.monitor_out ());
3056 Glib::Threads::RWLock::ReaderLock rm (_processor_lock);
3058 for (ProcessorList::iterator x = _processors.begin(); x != _processors.end(); ++x) {
3060 boost::shared_ptr<InternalSend> d = boost::dynamic_pointer_cast<InternalSend> (*x);
3062 if (d && d->target_route() == route) {
3063 /* already listening via the specified IO: do nothing */
3071 boost::shared_ptr<InternalSend> listener;
3074 Glib::Threads::Mutex::Lock lm (AudioEngine::instance()->process_lock ());
3075 boost::shared_ptr<Pannable> sendpan (new Pannable (_session));
3076 listener.reset (new InternalSend (_session, sendpan, _mute_master, boost::dynamic_pointer_cast<ARDOUR::Route>(shared_from_this()), route, Delivery::Aux));
3079 add_processor (listener, before);
3081 } catch (failed_constructor& err) {
3089 Route::remove_aux_or_listen (boost::shared_ptr<Route> route)
3091 ProcessorStreams err;
3092 ProcessorList::iterator tmp;
3095 Glib::Threads::RWLock::ReaderLock rl(_processor_lock);
3097 /* have to do this early because otherwise processor reconfig
3098 * will put _monitor_send back in the list
3101 if (route == _session.monitor_out()) {
3102 _monitor_send.reset ();
3106 for (ProcessorList::iterator x = _processors.begin(); x != _processors.end(); ++x) {
3108 boost::shared_ptr<InternalSend> d = boost::dynamic_pointer_cast<InternalSend>(*x);
3110 if (d && d->target_route() == route) {
3112 remove_processor (*x, &err, false);
3115 /* list could have been demolished while we dropped the lock
3126 Route::set_comment (string cmt, void *src)
3129 comment_changed (src);
3130 _session.set_dirty ();
3134 Route::add_fed_by (boost::shared_ptr<Route> other, bool via_sends_only)
3136 FeedRecord fr (other, via_sends_only);
3138 pair<FedBy::iterator,bool> result = _fed_by.insert (fr);
3140 if (!result.second) {
3142 /* already a record for "other" - make sure sends-only information is correct */
3143 if (!via_sends_only && result.first->sends_only) {
3144 FeedRecord* frp = const_cast<FeedRecord*>(&(*result.first));
3145 frp->sends_only = false;
3149 return result.second;
3153 Route::clear_fed_by ()
3159 Route::feeds (boost::shared_ptr<Route> other, bool* via_sends_only)
3161 const FedBy& fed_by (other->fed_by());
3163 for (FedBy::const_iterator f = fed_by.begin(); f != fed_by.end(); ++f) {
3164 boost::shared_ptr<Route> sr = f->r.lock();
3166 if (sr && (sr.get() == this)) {
3168 if (via_sends_only) {
3169 *via_sends_only = f->sends_only;
3180 Route::direct_feeds_according_to_reality (boost::shared_ptr<Route> other, bool* via_send_only)
3182 DEBUG_TRACE (DEBUG::Graph, string_compose ("Feeds? %1\n", _name));
3184 if (_output->connected_to (other->input())) {
3185 DEBUG_TRACE (DEBUG::Graph, string_compose ("\tdirect FEEDS %2\n", other->name()));
3186 if (via_send_only) {
3187 *via_send_only = false;
3194 for (ProcessorList::iterator r = _processors.begin(); r != _processors.end(); ++r) {
3196 boost::shared_ptr<IOProcessor> iop;
3198 if ((iop = boost::dynamic_pointer_cast<IOProcessor>(*r)) != 0) {
3199 if (iop->feeds (other)) {
3200 DEBUG_TRACE (DEBUG::Graph, string_compose ("\tIOP %1 does feed %2\n", iop->name(), other->name()));
3201 if (via_send_only) {
3202 *via_send_only = true;
3206 DEBUG_TRACE (DEBUG::Graph, string_compose ("\tIOP %1 does NOT feed %2\n", iop->name(), other->name()));
3209 DEBUG_TRACE (DEBUG::Graph, string_compose ("\tPROC %1 is not an IOP\n", (*r)->name()));
3214 DEBUG_TRACE (DEBUG::Graph, string_compose ("\tdoes NOT feed %1\n", other->name()));
3219 Route::direct_feeds_according_to_graph (boost::shared_ptr<Route> other, bool* via_send_only)
3221 return _session._current_route_graph.has (shared_from_this (), other, via_send_only);
3224 /** Called from the (non-realtime) butler thread when the transport is stopped */
3226 Route::nonrealtime_handle_transport_stopped (bool /*abort_ignored*/, bool /*did_locate*/, bool can_flush_processors)
3228 framepos_t now = _session.transport_frame();
3231 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
3233 Automatable::transport_stopped (now);
3235 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
3237 if (!_have_internal_generator && (Config->get_plugins_stop_with_transport() && can_flush_processors)) {
3241 (*i)->transport_stopped (now);
3245 _roll_delay = _initial_delay;
3249 Route::input_change_handler (IOChange change, void * /*src*/)
3251 bool need_to_queue_solo_change = true;
3253 if ((change.type & IOChange::ConfigurationChanged)) {
3254 /* This is called with the process lock held if change
3255 contains ConfigurationChanged
3257 need_to_queue_solo_change = false;
3258 configure_processors (0);
3259 _phase_invert.resize (_input->n_ports().n_audio ());
3260 io_changed (); /* EMIT SIGNAL */
3263 if (!_input->connected() && _soloed_by_others_upstream) {
3264 if (need_to_queue_solo_change) {
3265 _session.cancel_solo_after_disconnect (shared_from_this(), true);
3267 cancel_solo_after_disconnect (true);
3273 Route::output_change_handler (IOChange change, void * /*src*/)
3275 bool need_to_queue_solo_change = true;
3276 if (_initial_io_setup) {
3280 if ((change.type & IOChange::ConfigurationChanged)) {
3281 /* This is called with the process lock held if change
3282 contains ConfigurationChanged
3284 need_to_queue_solo_change = false;
3285 configure_processors (0);
3288 _session.reset_monitor_section();
3291 io_changed (); /* EMIT SIGNAL */
3294 if (!_output->connected() && _soloed_by_others_downstream) {
3295 if (need_to_queue_solo_change) {
3296 _session.cancel_solo_after_disconnect (shared_from_this(), false);
3298 cancel_solo_after_disconnect (false);
3304 Route::cancel_solo_after_disconnect (bool upstream)
3307 _soloed_by_others_upstream = 0;
3309 _soloed_by_others_downstream = 0;
3311 set_mute_master_solo ();
3312 solo_changed (false, this);
3316 Route::pans_required () const
3318 if (n_outputs().n_audio() < 2) {
3322 return max (n_inputs ().n_audio(), processor_max_streams.n_audio());
3326 Route::no_roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame, bool session_state_changing)
3328 Glib::Threads::RWLock::ReaderLock lm (_processor_lock, Glib::Threads::TRY_LOCK);
3334 if (n_outputs().n_total() == 0) {
3338 if (!_active || n_inputs() == ChanCount::ZERO) {
3339 silence_unlocked (nframes);
3343 if (session_state_changing) {
3344 if (_session.transport_speed() != 0.0f) {
3345 /* we're rolling but some state is changing (e.g. our diskstream contents)
3346 so we cannot use them. Be silent till this is over.
3348 XXX note the absurdity of ::no_roll() being called when we ARE rolling!
3350 silence_unlocked (nframes);
3353 /* we're really not rolling, so we're either delivery silence or actually
3354 monitoring, both of which are safe to do while session_state_changing is true.
3358 BufferSet& bufs = _session.get_route_buffers (n_process_buffers());
3360 fill_buffers_with_input (bufs, _input, nframes);
3362 if (_meter_point == MeterInput) {
3363 _meter->run (bufs, start_frame, end_frame, nframes, true);
3366 _amp->apply_gain_automation (false);
3367 _trim->apply_gain_automation (false);
3368 passthru (bufs, start_frame, end_frame, nframes, 0);
3374 Route::roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame, int declick, bool& /* need_butler */)
3376 Glib::Threads::RWLock::ReaderLock lm (_processor_lock, Glib::Threads::TRY_LOCK);
3381 if (n_outputs().n_total() == 0) {
3385 if (!_active || n_inputs().n_total() == 0) {
3386 silence_unlocked (nframes);
3390 framepos_t unused = 0;
3392 if ((nframes = check_initial_delay (nframes, unused)) == 0) {
3398 BufferSet& bufs = _session.get_route_buffers (n_process_buffers());
3400 fill_buffers_with_input (bufs, _input, nframes);
3402 if (_meter_point == MeterInput) {
3403 _meter->run (bufs, start_frame, end_frame, nframes, true);
3406 passthru (bufs, start_frame, end_frame, nframes, declick);
3412 Route::silent_roll (pframes_t nframes, framepos_t /*start_frame*/, framepos_t /*end_frame*/, bool& /* need_butler */)
3419 Route::flush_processors ()
3421 /* XXX shouldn't really try to take this lock, since
3422 this is called from the RT audio thread.
3425 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
3427 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
3433 __attribute__((annotate("realtime")))
3436 Route::apply_processor_changes_rt ()
3438 int emissions = EmitNone;
3440 if (_pending_meter_point != _meter_point) {
3441 Glib::Threads::RWLock::WriterLock pwl (_processor_lock, Glib::Threads::TRY_LOCK);
3443 /* meters always have buffers for 'processor_max_streams'
3444 * they can be re-positioned without re-allocation */
3445 if (set_meter_point_unlocked()) {
3446 emissions |= EmitMeterChanged | EmitMeterVisibilityChange;;
3448 emissions |= EmitMeterChanged;
3453 bool changed = false;
3455 if (g_atomic_int_get (&_pending_process_reorder)) {
3456 Glib::Threads::RWLock::WriterLock pwl (_processor_lock, Glib::Threads::TRY_LOCK);
3458 apply_processor_order (_pending_processor_order);
3459 setup_invisible_processors ();
3461 g_atomic_int_set (&_pending_process_reorder, 0);
3462 emissions |= EmitRtProcessorChange;
3466 set_processor_positions ();
3468 if (emissions != 0) {
3469 g_atomic_int_set (&_pending_signals, emissions);
3476 Route::emit_pending_signals ()
3479 int sig = g_atomic_int_and (&_pending_signals, 0);
3480 if (sig & EmitMeterChanged) {
3481 _meter->emit_configuration_changed();
3482 meter_change (); /* EMIT SIGNAL */
3483 if (sig & EmitMeterVisibilityChange) {
3484 processors_changed (RouteProcessorChange (RouteProcessorChange::MeterPointChange, true)); /* EMIT SIGNAL */
3486 processors_changed (RouteProcessorChange (RouteProcessorChange::MeterPointChange, false)); /* EMIT SIGNAL */
3489 if (sig & EmitRtProcessorChange) {
3490 processors_changed (RouteProcessorChange (RouteProcessorChange::RealTimeChange)); /* EMIT SIGNAL */
3495 Route::set_meter_point (MeterPoint p, bool force)
3497 if (_pending_meter_point == p && !force) {
3501 if (force || !AudioEngine::instance()->running()) {
3502 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
3503 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
3504 _pending_meter_point = p;
3505 _meter->emit_configuration_changed();
3506 meter_change (); /* EMIT SIGNAL */
3507 if (set_meter_point_unlocked()) {
3508 processors_changed (RouteProcessorChange (RouteProcessorChange::MeterPointChange, true)); /* EMIT SIGNAL */
3510 processors_changed (RouteProcessorChange (RouteProcessorChange::MeterPointChange, false)); /* EMIT SIGNAL */
3513 _pending_meter_point = p;
3519 __attribute__((annotate("realtime")))
3522 Route::set_meter_point_unlocked ()
3525 /* Caller must hold process and processor write lock */
3526 assert (!AudioEngine::instance()->process_lock().trylock());
3527 Glib::Threads::RWLock::WriterLock lm (_processor_lock, Glib::Threads::TRY_LOCK);
3528 assert (!lm.locked ());
3531 _meter_point = _pending_meter_point;
3533 bool meter_was_visible_to_user = _meter->display_to_user ();
3535 if (!_custom_meter_position_noted) {
3536 maybe_note_meter_position ();
3539 if (_meter_point != MeterCustom) {
3541 _meter->set_display_to_user (false);
3543 setup_invisible_processors ();
3546 _meter->set_display_to_user (true);
3548 /* If we have a previous position for the custom meter, try to put it there */
3549 boost::shared_ptr<Processor> after = _processor_after_last_custom_meter.lock ();
3551 ProcessorList::iterator i = find (_processors.begin(), _processors.end(), after);
3552 if (i != _processors.end ()) {
3553 _processors.remove (_meter);
3554 _processors.insert (i, _meter);
3556 } else {// at end, right before the mains_out/panner
3557 _processors.remove (_meter);
3558 ProcessorList::iterator main = _processors.end();
3559 _processors.insert (--main, _meter);
3563 /* Set up the meter for its new position */
3565 ProcessorList::iterator loc = find (_processors.begin(), _processors.end(), _meter);
3569 if (loc == _processors.begin()) {
3570 m_in = _input->n_ports();
3572 ProcessorList::iterator before = loc;
3574 m_in = (*before)->output_streams ();
3577 _meter->reflect_inputs (m_in);
3579 /* we do not need to reconfigure the processors, because the meter
3580 (a) is always ready to handle processor_max_streams
3581 (b) is always an N-in/N-out processor, and thus moving
3582 it doesn't require any changes to the other processors.
3585 /* these should really be done after releasing the lock
3586 * but all those signals are subscribed to with gui_thread()
3589 return (_meter->display_to_user() != meter_was_visible_to_user);
3593 Route::listen_position_changed ()
3596 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
3597 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
3598 ProcessorState pstate (this);
3600 if (configure_processors_unlocked (0)) {
3602 configure_processors_unlocked (0); // it worked before we tried to add it ...
3607 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
3608 _session.set_dirty ();
3611 boost::shared_ptr<CapturingProcessor>
3612 Route::add_export_point()
3614 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
3615 if (!_capturing_processor) {
3617 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
3618 Glib::Threads::RWLock::WriterLock lw (_processor_lock);
3620 _capturing_processor.reset (new CapturingProcessor (_session));
3621 _capturing_processor->activate ();
3623 configure_processors_unlocked (0);
3627 return _capturing_processor;
3631 Route::update_signal_latency ()
3633 framecnt_t l = _output->user_latency();
3634 framecnt_t lamp = 0;
3635 bool before_amp = true;
3636 framecnt_t ltrim = 0;
3637 bool before_trim = true;
3639 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
3640 if ((*i)->active ()) {
3641 l += (*i)->signal_latency ();
3646 if ((*i) == _trim) {
3657 DEBUG_TRACE (DEBUG::Latency, string_compose ("%1: internal signal latency = %2\n", _name, l));
3659 // TODO: (lamp - _signal_latency) to sync to output (read-ahed), currently _roll_delay shifts this around
3660 _signal_latency_at_amp_position = lamp;
3661 _signal_latency_at_trim_position = ltrim;
3663 if (_signal_latency != l) {
3664 _signal_latency = l;
3665 signal_latency_changed (); /* EMIT SIGNAL */
3668 return _signal_latency;
3672 Route::set_user_latency (framecnt_t nframes)
3674 _output->set_user_latency (nframes);
3675 _session.update_latency_compensation ();
3679 Route::set_latency_compensation (framecnt_t longest_session_latency)
3681 framecnt_t old = _initial_delay;
3683 if (_signal_latency < longest_session_latency) {
3684 _initial_delay = longest_session_latency - _signal_latency;
3689 DEBUG_TRACE (DEBUG::Latency, string_compose (
3690 "%1: compensate for maximum latency of %2,"
3691 "given own latency of %3, using initial delay of %4\n",
3692 name(), longest_session_latency, _signal_latency, _initial_delay));
3694 if (_initial_delay != old) {
3695 initial_delay_changed (); /* EMIT SIGNAL */
3698 if (_session.transport_stopped()) {
3699 _roll_delay = _initial_delay;
3703 Route::SoloControllable::SoloControllable (std::string name, boost::shared_ptr<Route> r)
3704 : AutomationControl (r->session(),
3705 Evoral::Parameter (SoloAutomation),
3706 ParameterDescriptor(Evoral::Parameter (SoloAutomation)),
3707 boost::shared_ptr<AutomationList>(), name)
3710 boost::shared_ptr<AutomationList> gl(new AutomationList(Evoral::Parameter(SoloAutomation)));
3711 gl->set_interpolation(Evoral::ControlList::Discrete);
3716 Route::SoloControllable::set_value (double val)
3718 const bool bval = ((val >= 0.5) ? true : false);
3720 boost::shared_ptr<RouteList> rl (new RouteList);
3722 boost::shared_ptr<Route> r = _route.lock ();
3729 if (Config->get_solo_control_is_listen_control()) {
3730 _session.set_listen (rl, bval);
3732 _session.set_solo (rl, bval);
3737 Route::SoloControllable::get_value () const
3739 boost::shared_ptr<Route> r = _route.lock ();
3744 if (Config->get_solo_control_is_listen_control()) {
3745 return r->listening_via_monitor() ? GAIN_COEFF_UNITY : GAIN_COEFF_ZERO;
3747 return r->self_soloed() ? GAIN_COEFF_UNITY : GAIN_COEFF_ZERO;
3751 Route::MuteControllable::MuteControllable (std::string name, boost::shared_ptr<Route> r)
3752 : AutomationControl (r->session(),
3753 Evoral::Parameter (MuteAutomation),
3754 ParameterDescriptor (Evoral::Parameter (MuteAutomation)),
3755 boost::shared_ptr<AutomationList>(),
3759 boost::shared_ptr<AutomationList> gl(new AutomationList(Evoral::Parameter(MuteAutomation)));
3760 gl->set_interpolation(Evoral::ControlList::Discrete);
3765 Route::MuteControllable::set_superficial_value(bool muted)
3767 /* Note we can not use AutomationControl::set_value here since it will emit
3768 Changed(), but the value will not be correct to the observer. */
3770 bool to_list = _list && ((AutomationList*)_list.get())->automation_write();
3772 Control::set_double (muted, _session.transport_frame(), to_list);
3776 Route::MuteControllable::set_value (double val)
3778 const bool bval = ((val >= 0.5) ? true : false);
3780 boost::shared_ptr<Route> r = _route.lock ();
3785 if (_list && ((AutomationList*)_list.get())->automation_playback()) {
3786 // Playing back automation, set route mute directly
3787 r->set_mute (bval, this);
3789 // Set from user, queue mute event
3790 boost::shared_ptr<RouteList> rl (new RouteList);
3792 _session.set_mute (rl, bval, Session::rt_cleanup);
3795 // Set superficial/automation value to drive controller (and possibly record)
3796 set_superficial_value(bval);
3800 Route::MuteControllable::get_value () const
3802 if (_list && ((AutomationList*)_list.get())->automation_playback()) {
3803 // Playing back automation, get the value from the list
3804 return AutomationControl::get_value();
3807 // Not playing back automation, get the actual route mute value
3808 boost::shared_ptr<Route> r = _route.lock ();
3809 return (r && r->muted()) ? GAIN_COEFF_UNITY : GAIN_COEFF_ZERO;
3813 Route::set_block_size (pframes_t nframes)
3815 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
3816 (*i)->set_block_size (nframes);
3819 _session.ensure_buffers (n_process_buffers ());
3823 Route::protect_automation ()
3825 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i)
3826 (*i)->protect_automation();
3829 /** @param declick 1 to set a pending declick fade-in,
3830 * -1 to set a pending declick fade-out
3833 Route::set_pending_declick (int declick)
3836 /* this call is not allowed to turn off a pending declick */
3838 _pending_declick = declick;
3841 _pending_declick = 0;
3845 /** Shift automation forwards from a particular place, thereby inserting time.
3846 * Adds undo commands for any shifts that are performed.
3848 * @param pos Position to start shifting from.
3849 * @param frames Amount to shift forwards by.
3853 Route::shift (framepos_t pos, framecnt_t frames)
3855 /* gain automation */
3857 boost::shared_ptr<AutomationControl> gc = _amp->gain_control();
3859 XMLNode &before = gc->alist()->get_state ();
3860 gc->alist()->shift (pos, frames);
3861 XMLNode &after = gc->alist()->get_state ();
3862 _session.add_command (new MementoCommand<AutomationList> (*gc->alist().get(), &before, &after));
3865 /* gain automation */
3867 boost::shared_ptr<AutomationControl> gc = _trim->gain_control();
3869 XMLNode &before = gc->alist()->get_state ();
3870 gc->alist()->shift (pos, frames);
3871 XMLNode &after = gc->alist()->get_state ();
3872 _session.add_command (new MementoCommand<AutomationList> (*gc->alist().get(), &before, &after));
3875 // TODO mute automation ??
3877 /* pan automation */
3879 ControlSet::Controls& c (_pannable->controls());
3881 for (ControlSet::Controls::const_iterator ci = c.begin(); ci != c.end(); ++ci) {
3882 boost::shared_ptr<AutomationControl> pc = boost::dynamic_pointer_cast<AutomationControl> (ci->second);
3884 boost::shared_ptr<AutomationList> al = pc->alist();
3885 XMLNode& before = al->get_state ();
3886 al->shift (pos, frames);
3887 XMLNode& after = al->get_state ();
3888 _session.add_command (new MementoCommand<AutomationList> (*al.get(), &before, &after));
3893 /* redirect automation */
3895 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
3896 for (ProcessorList::iterator i = _processors.begin (); i != _processors.end (); ++i) {
3898 set<Evoral::Parameter> parameters = (*i)->what_can_be_automated();
3900 for (set<Evoral::Parameter>::const_iterator p = parameters.begin (); p != parameters.end (); ++p) {
3901 boost::shared_ptr<AutomationControl> ac = (*i)->automation_control (*p);
3903 boost::shared_ptr<AutomationList> al = ac->alist();
3904 XMLNode &before = al->get_state ();
3905 al->shift (pos, frames);
3906 XMLNode &after = al->get_state ();
3907 _session.add_command (new MementoCommand<AutomationList> (*al.get(), &before, &after));
3916 Route::save_as_template (const string& path, const string& name)
3918 XMLNode& node (state (false));
3921 IO::set_name_in_state (*node.children().front(), name);
3923 tree.set_root (&node);
3924 return tree.write (path.c_str());
3929 Route::set_name (const string& str)
3931 if (str == name()) {
3935 string name = Route::ensure_track_or_route_name (str, _session);
3936 SessionObject::set_name (name);
3938 bool ret = (_input->set_name(name) && _output->set_name(name));
3941 /* rename the main outs. Leave other IO processors
3942 * with whatever name they already have, because its
3943 * just fine as it is (it will not contain the route
3944 * name if its a port insert, port send or port return).
3948 if (_main_outs->set_name (name)) {
3949 /* XXX returning false here is stupid because
3950 we already changed the route name.
3960 /** Set the name of a route in an XML description.
3961 * @param node XML <Route> node to set the name in.
3962 * @param name New name.
3965 Route::set_name_in_state (XMLNode& node, string const & name)
3967 node.add_property (X_("name"), name);
3969 XMLNodeList children = node.children();
3970 for (XMLNodeIterator i = children.begin(); i != children.end(); ++i) {
3972 if ((*i)->name() == X_("IO")) {
3974 IO::set_name_in_state (**i, name);
3976 } else if ((*i)->name() == X_("Processor")) {
3978 XMLProperty* role = (*i)->property (X_("role"));
3979 if (role && role->value() == X_("Main")) {
3980 (*i)->add_property (X_("name"), name);
3983 } else if ((*i)->name() == X_("Diskstream")) {
3985 (*i)->add_property (X_("playlist"), string_compose ("%1.1", name).c_str());
3986 (*i)->add_property (X_("name"), name);
3992 boost::shared_ptr<Send>
3993 Route::internal_send_for (boost::shared_ptr<const Route> target) const
3995 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
3997 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
3998 boost::shared_ptr<InternalSend> send;
4000 if ((send = boost::dynamic_pointer_cast<InternalSend>(*i)) != 0) {
4001 if (send->target_route() == target) {
4007 return boost::shared_ptr<Send>();
4010 /** @param c Audio channel index.
4011 * @param yn true to invert phase, otherwise false.
4014 Route::set_phase_invert (uint32_t c, bool yn)
4016 if (_phase_invert[c] != yn) {
4017 _phase_invert[c] = yn;
4018 phase_invert_changed (); /* EMIT SIGNAL */
4019 _session.set_dirty ();
4024 Route::set_phase_invert (boost::dynamic_bitset<> p)
4026 if (_phase_invert != p) {
4028 phase_invert_changed (); /* EMIT SIGNAL */
4029 _session.set_dirty ();
4034 Route::phase_invert (uint32_t c) const
4036 return _phase_invert[c];
4039 boost::dynamic_bitset<>
4040 Route::phase_invert () const
4042 return _phase_invert;
4046 Route::set_denormal_protection (bool yn)
4048 if (_denormal_protection != yn) {
4049 _denormal_protection = yn;
4050 denormal_protection_changed (); /* EMIT SIGNAL */
4055 Route::denormal_protection () const
4057 return _denormal_protection;
4061 Route::set_active (bool yn, void* src)
4063 if (_session.transport_rolling()) {
4067 if (_route_group && src != _route_group && _route_group->is_active() && _route_group->is_route_active()) {
4068 _route_group->foreach_route (boost::bind (&Route::set_active, _1, yn, _route_group));
4072 if (_active != yn) {
4074 _input->set_active (yn);
4075 _output->set_active (yn);
4076 active_changed (); // EMIT SIGNAL
4077 _session.set_dirty ();
4081 boost::shared_ptr<Pannable>
4082 Route::pannable() const
4087 boost::shared_ptr<Panner>
4088 Route::panner() const
4091 return _main_outs->panner_shell()->panner();
4094 boost::shared_ptr<PannerShell>
4095 Route::panner_shell() const
4097 return _main_outs->panner_shell();
4100 boost::shared_ptr<AutomationControl>
4101 Route::gain_control() const
4103 return _amp->gain_control();
4106 boost::shared_ptr<AutomationControl>
4107 Route::get_control (const Evoral::Parameter& param)
4109 /* either we own the control or .... */
4111 boost::shared_ptr<AutomationControl> c = boost::dynamic_pointer_cast<AutomationControl>(control (param));
4115 /* maybe one of our processors does or ... */
4117 Glib::Threads::RWLock::ReaderLock rm (_processor_lock);
4118 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4119 if ((c = boost::dynamic_pointer_cast<AutomationControl>((*i)->control (param))) != 0) {
4127 /* nobody does so we'll make a new one */
4129 c = boost::dynamic_pointer_cast<AutomationControl>(control_factory(param));
4136 boost::shared_ptr<Processor>
4137 Route::nth_plugin (uint32_t n)
4139 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4140 ProcessorList::iterator i;
4142 for (i = _processors.begin(); i != _processors.end(); ++i) {
4143 if (boost::dynamic_pointer_cast<PluginInsert> (*i)) {
4150 return boost::shared_ptr<Processor> ();
4153 boost::shared_ptr<Processor>
4154 Route::nth_send (uint32_t n)
4156 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4157 ProcessorList::iterator i;
4159 for (i = _processors.begin(); i != _processors.end(); ++i) {
4160 if (boost::dynamic_pointer_cast<Send> (*i)) {
4167 return boost::shared_ptr<Processor> ();
4171 Route::has_io_processor_named (const string& name)
4173 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4174 ProcessorList::iterator i;
4176 for (i = _processors.begin(); i != _processors.end(); ++i) {
4177 if (boost::dynamic_pointer_cast<Send> (*i) ||
4178 boost::dynamic_pointer_cast<PortInsert> (*i)) {
4179 if ((*i)->name() == name) {
4188 MuteMaster::MutePoint
4189 Route::mute_points () const
4191 return _mute_master->mute_points ();
4195 Route::set_processor_positions ()
4197 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4199 bool had_amp = false;
4200 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
4201 (*i)->set_pre_fader (!had_amp);
4208 /** Called when there is a proposed change to the input port count */
4210 Route::input_port_count_changing (ChanCount to)
4212 list<pair<ChanCount, ChanCount> > c = try_configure_processors (to, 0);
4214 /* The processors cannot be configured with the new input arrangement, so
4220 /* The change is ok */
4224 /** Called when there is a proposed change to the output port count */
4226 Route::output_port_count_changing (ChanCount to)
4228 for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
4229 if (processor_out_streams.get(*t) > to.get(*t)) {
4233 /* The change is ok */
4238 Route::unknown_processors () const
4242 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4243 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
4244 if (boost::dynamic_pointer_cast<UnknownProcessor const> (*i)) {
4245 p.push_back ((*i)->name ());
4254 Route::update_port_latencies (PortSet& from, PortSet& to, bool playback, framecnt_t our_latency) const
4256 /* we assume that all our input ports feed all our output ports. its not
4257 universally true, but the alternative is way too corner-case to worry about.
4260 LatencyRange all_connections;
4263 all_connections.min = 0;
4264 all_connections.max = 0;
4266 all_connections.min = ~((pframes_t) 0);
4267 all_connections.max = 0;
4269 /* iterate over all "from" ports and determine the latency range for all of their
4270 connections to the "outside" (outside of this Route).
4273 for (PortSet::iterator p = from.begin(); p != from.end(); ++p) {
4277 p->get_connected_latency_range (range, playback);
4279 all_connections.min = min (all_connections.min, range.min);
4280 all_connections.max = max (all_connections.max, range.max);
4284 /* set the "from" port latencies to the max/min range of all their connections */
4286 for (PortSet::iterator p = from.begin(); p != from.end(); ++p) {
4287 p->set_private_latency_range (all_connections, playback);
4290 /* set the ports "in the direction of the flow" to the same value as above plus our own signal latency */
4292 all_connections.min += our_latency;
4293 all_connections.max += our_latency;
4295 for (PortSet::iterator p = to.begin(); p != to.end(); ++p) {
4296 p->set_private_latency_range (all_connections, playback);
4299 return all_connections.max;
4303 Route::set_private_port_latencies (bool playback) const
4305 framecnt_t own_latency = 0;
4307 /* Processor list not protected by lock: MUST BE CALLED FROM PROCESS THREAD
4308 OR LATENCY CALLBACK.
4310 This is called (early) from the latency callback. It computes the REAL
4311 latency associated with each port and stores the result as the "private"
4312 latency of the port. A later call to Route::set_public_port_latencies()
4313 sets all ports to the same value to reflect the fact that we do latency
4314 compensation and so all signals are delayed by the same amount as they
4315 flow through ardour.
4318 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
4319 if ((*i)->active ()) {
4320 own_latency += (*i)->signal_latency ();
4325 /* playback: propagate latency from "outside the route" to outputs to inputs */
4326 return update_port_latencies (_output->ports (), _input->ports (), true, own_latency);
4328 /* capture: propagate latency from "outside the route" to inputs to outputs */
4329 return update_port_latencies (_input->ports (), _output->ports (), false, own_latency);
4334 Route::set_public_port_latencies (framecnt_t value, bool playback) const
4336 /* this is called to set the JACK-visible port latencies, which take
4337 latency compensation into account.
4346 const PortSet& ports (_input->ports());
4347 for (PortSet::const_iterator p = ports.begin(); p != ports.end(); ++p) {
4348 p->set_public_latency_range (range, playback);
4353 const PortSet& ports (_output->ports());
4354 for (PortSet::const_iterator p = ports.begin(); p != ports.end(); ++p) {
4355 p->set_public_latency_range (range, playback);
4360 /** Put the invisible processors in the right place in _processors.
4361 * Must be called with a writer lock on _processor_lock held.
4364 __attribute__((annotate("realtime")))
4367 Route::setup_invisible_processors ()
4370 Glib::Threads::RWLock::WriterLock lm (_processor_lock, Glib::Threads::TRY_LOCK);
4371 assert (!lm.locked ());
4375 /* too early to be doing this stuff */
4379 /* we'll build this new list here and then use it
4381 * TODO put the ProcessorList is on the stack for RT-safety.
4384 ProcessorList new_processors;
4386 /* find visible processors */
4388 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4389 if ((*i)->display_to_user ()) {
4390 new_processors.push_back (*i);
4396 ProcessorList::iterator amp = new_processors.begin ();
4397 while (amp != new_processors.end() && *amp != _amp) {
4401 assert (amp != new_processors.end ());
4403 /* and the processor after the amp */
4405 ProcessorList::iterator after_amp = amp;
4411 switch (_meter_point) {
4413 assert (!_meter->display_to_user ());
4414 new_processors.push_front (_meter);
4417 assert (!_meter->display_to_user ());
4418 new_processors.insert (amp, _meter);
4420 case MeterPostFader:
4421 /* do nothing here */
4424 /* do nothing here */
4427 /* the meter is visible, so we don't touch it here */
4434 assert (_main_outs);
4435 assert (!_main_outs->display_to_user ());
4436 new_processors.push_back (_main_outs);
4438 /* iterator for the main outs */
4440 ProcessorList::iterator main = new_processors.end();
4443 /* OUTPUT METERING */
4445 if (_meter && (_meter_point == MeterOutput || _meter_point == MeterPostFader)) {
4446 assert (!_meter->display_to_user ());
4448 /* add the processor just before or just after the main outs */
4450 ProcessorList::iterator meter_point = main;
4452 if (_meter_point == MeterOutput) {
4455 new_processors.insert (meter_point, _meter);
4460 if (_monitor_send && !is_monitor ()) {
4461 assert (!_monitor_send->display_to_user ());
4462 if (Config->get_solo_control_is_listen_control()) {
4463 switch (Config->get_listen_position ()) {
4464 case PreFaderListen:
4465 switch (Config->get_pfl_position ()) {
4466 case PFLFromBeforeProcessors:
4467 new_processors.push_front (_monitor_send);
4469 case PFLFromAfterProcessors:
4470 new_processors.insert (amp, _monitor_send);
4473 _monitor_send->set_can_pan (false);
4475 case AfterFaderListen:
4476 switch (Config->get_afl_position ()) {
4477 case AFLFromBeforeProcessors:
4478 new_processors.insert (after_amp, _monitor_send);
4480 case AFLFromAfterProcessors:
4481 new_processors.insert (new_processors.end(), _monitor_send);
4484 _monitor_send->set_can_pan (true);
4488 new_processors.insert (new_processors.end(), _monitor_send);
4489 _monitor_send->set_can_pan (false);
4493 #if 0 // not used - just yet
4494 if (!is_master() && !is_monitor() && !is_auditioner()) {
4495 new_processors.push_front (_delayline);
4499 /* MONITOR CONTROL */
4501 if (_monitor_control && is_monitor ()) {
4502 assert (!_monitor_control->display_to_user ());
4503 new_processors.push_front (_monitor_control);
4506 /* INTERNAL RETURN */
4508 /* doing this here means that any monitor control will come just after
4513 assert (!_intreturn->display_to_user ());
4514 new_processors.push_front (_intreturn);
4517 if (_trim && _trim->active()) {
4518 assert (!_trim->display_to_user ());
4519 new_processors.push_front (_trim);
4521 /* EXPORT PROCESSOR */
4523 if (_capturing_processor) {
4524 assert (!_capturing_processor->display_to_user ());
4525 new_processors.push_front (_capturing_processor);
4528 _processors = new_processors;
4530 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4531 if (!(*i)->display_to_user () && !(*i)->active ()) {
4536 DEBUG_TRACE (DEBUG::Processors, string_compose ("%1: setup_invisible_processors\n", _name));
4537 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4538 DEBUG_TRACE (DEBUG::Processors, string_compose ("\t%1\n", (*i)->name ()));
4545 Glib::Threads::Mutex::Lock lm (AudioEngine::instance()->process_lock ());
4546 Glib::Threads::RWLock::ReaderLock lp (_processor_lock);
4550 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4551 boost::shared_ptr<Delivery> d = boost::dynamic_pointer_cast<Delivery>(*i);
4558 /** If the meter point is `Custom', make a note of where the meter is.
4559 * This is so that if the meter point is subsequently set to something else,
4560 * and then back to custom, we can put the meter back where it was last time
4561 * custom was enabled.
4563 * Must be called with the _processor_lock held.
4566 Route::maybe_note_meter_position ()
4568 if (_meter_point != MeterCustom) {
4572 _custom_meter_position_noted = true;
4573 /* custom meter points range from after trim to before panner/main_outs
4574 * this is a limitation by the current processor UI
4576 bool seen_trim = false;
4577 _processor_after_last_custom_meter.reset();
4578 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4579 if ((*i) == _trim) {
4582 if ((*i) == _main_outs) {
4583 _processor_after_last_custom_meter = *i;
4586 if (boost::dynamic_pointer_cast<PeakMeter> (*i)) {
4588 _processor_after_last_custom_meter = _trim;
4590 ProcessorList::iterator j = i;
4592 assert(j != _processors.end ()); // main_outs should be before
4593 _processor_after_last_custom_meter = *j;
4598 assert(_processor_after_last_custom_meter.lock());
4601 boost::shared_ptr<Processor>
4602 Route::processor_by_id (PBD::ID id) const
4604 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4605 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
4606 if ((*i)->id() == id) {
4611 return boost::shared_ptr<Processor> ();
4614 /** @return the monitoring state, or in other words what data we are pushing
4615 * into the route (data from the inputs, data from disk or silence)
4618 Route::monitoring_state () const
4620 return MonitoringInput;
4623 /** @return what we should be metering; either the data coming from the input
4624 * IO or the data that is flowing through the route.
4627 Route::metering_state () const
4629 return MeteringRoute;
4633 Route::has_external_redirects () const
4635 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
4637 /* ignore inactive processors and obviously ignore the main
4638 * outs since everything has them and we don't care.
4641 if ((*i)->active() && (*i) != _main_outs && (*i)->does_routing()) {
4649 boost::shared_ptr<Processor>
4650 Route::the_instrument () const
4652 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4653 return the_instrument_unlocked ();
4656 boost::shared_ptr<Processor>
4657 Route::the_instrument_unlocked () const
4659 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
4660 if (boost::dynamic_pointer_cast<PluginInsert>(*i)) {
4661 if ((*i)->input_streams().n_midi() > 0 &&
4662 (*i)->output_streams().n_audio() > 0) {
4667 return boost::shared_ptr<Processor>();
4673 Route::non_realtime_locate (framepos_t pos)
4676 _pannable->transport_located (pos);
4679 if (_delayline.get()) {
4680 _delayline.get()->flush();
4684 //Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
4685 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4687 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4688 (*i)->transport_located (pos);
4694 Route::fill_buffers_with_input (BufferSet& bufs, boost::shared_ptr<IO> io, pframes_t nframes)
4701 * We don't currently mix MIDI input together, so we don't need the
4702 * complex logic of the audio case.
4705 n_buffers = bufs.count().n_midi ();
4707 for (i = 0; i < n_buffers; ++i) {
4709 boost::shared_ptr<MidiPort> source_port = io->midi (i);
4710 MidiBuffer& buf (bufs.get_midi (i));
4713 buf.copy (source_port->get_midi_buffer(nframes));
4715 buf.silence (nframes);
4721 n_buffers = bufs.count().n_audio();
4723 size_t n_ports = io->n_ports().n_audio();
4724 float scaling = 1.0f;
4726 if (n_ports > n_buffers) {
4727 scaling = ((float) n_buffers) / n_ports;
4730 for (i = 0; i < n_ports; ++i) {
4732 /* if there are more ports than buffers, map them onto buffers
4733 * in a round-robin fashion
4736 boost::shared_ptr<AudioPort> source_port = io->audio (i);
4737 AudioBuffer& buf (bufs.get_audio (i%n_buffers));
4740 if (i < n_buffers) {
4742 /* first time through just copy a channel into
4746 buf.read_from (source_port->get_audio_buffer (nframes), nframes);
4748 if (scaling != 1.0f) {
4749 buf.apply_gain (scaling, nframes);
4754 /* on subsequent times around, merge data from
4755 * the port with what is already there
4758 if (scaling != 1.0f) {
4759 buf.accumulate_with_gain_from (source_port->get_audio_buffer (nframes), nframes, 0, scaling);
4761 buf.accumulate_from (source_port->get_audio_buffer (nframes), nframes);
4766 /* silence any remaining buffers */
4768 for (; i < n_buffers; ++i) {
4769 AudioBuffer& buf (bufs.get_audio (i));
4770 buf.silence (nframes);
4773 /* establish the initial setup of the buffer set, reflecting what was
4774 copied into it. unless, of course, we are the auditioner, in which
4775 case nothing was fed into it from the inputs at all.
4778 if (!is_auditioner()) {
4779 bufs.set_count (io->n_ports());