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)
91 , _pending_signals (0)
93 , _pending_declick (true)
94 , _meter_point (MeterPostFader)
95 , _pending_meter_point (MeterPostFader)
96 , _meter_type (MeterPeak)
98 , _soloed_by_others_upstream (0)
99 , _soloed_by_others_downstream (0)
100 , _solo_isolated (false)
101 , _solo_isolated_by_upstream (0)
102 , _denormal_protection (false)
105 , _declickable (false)
106 , _mute_master (new MuteMaster (sess, name))
107 , _have_internal_generator (false)
109 , _default_type (default_type)
111 , _has_order_key (false)
112 , _remote_control_id (0)
114 , _in_configure_processors (false)
115 , _initial_io_setup (false)
116 , _custom_meter_position_noted (false)
118 processor_max_streams.reset();
124 /* set default meter type */
126 _meter_type = Config->get_meter_type_master ();
128 else if (dynamic_cast<Track*>(this)) {
129 _meter_type = Config->get_meter_type_track ();
131 _meter_type = Config->get_meter_type_bus ();
134 /* add standard controls */
136 _solo_control.reset (new SoloControllable (X_("solo"), shared_from_this ()));
137 _mute_control.reset (new MuteControllable (X_("mute"), shared_from_this ()));
139 _solo_control->set_flags (Controllable::Flag (_solo_control->flags() | Controllable::Toggle));
140 _mute_control->set_flags (Controllable::Flag (_mute_control->flags() | Controllable::Toggle));
142 add_control (_solo_control);
143 add_control (_mute_control);
147 if (!(_flags & Route::MonitorOut)) {
148 _pannable.reset (new Pannable (_session));
151 /* input and output objects */
153 _input.reset (new IO (_session, _name, IO::Input, _default_type));
154 _output.reset (new IO (_session, _name, IO::Output, _default_type));
156 _input->changed.connect_same_thread (*this, boost::bind (&Route::input_change_handler, this, _1, _2));
157 _input->PortCountChanging.connect_same_thread (*this, boost::bind (&Route::input_port_count_changing, this, _1));
159 _output->changed.connect_same_thread (*this, boost::bind (&Route::output_change_handler, this, _1, _2));
160 _output->PortCountChanging.connect_same_thread (*this, boost::bind (&Route::output_port_count_changing, this, _1));
162 #if 0 // not used - just yet
163 if (!is_master() && !is_monitor() && !is_auditioner()) {
164 _delayline.reset (new DelayLine (_session, _name));
165 add_processor (_delayline, PreFader);
169 /* add amp processor */
171 _amp.reset (new Amp (_session));
172 add_processor (_amp, PostFader);
175 _trim.reset (new Amp (_session, "trim"));
176 _trim->set_display_to_user (false);
178 if (dynamic_cast<AudioTrack*>(this)) {
179 /* we can't do this in the AudioTrack's constructor
180 * because _trim does not exit then
184 else if (!dynamic_cast<Track*>(this) && ! ( is_monitor() || is_auditioner() )) {
189 /* create standard processors: meter, main outs, monitor out;
190 they will be added to _processors by setup_invisible_processors ()
193 _meter.reset (new PeakMeter (_session, _name));
194 _meter->set_owner (this);
195 _meter->set_display_to_user (false);
198 _main_outs.reset (new Delivery (_session, _output, _pannable, _mute_master, _name, Delivery::Main));
199 _main_outs->activate ();
202 /* where we listen to tracks */
203 _intreturn.reset (new InternalReturn (_session));
204 _intreturn->activate ();
206 /* the thing that provides proper control over a control/monitor/listen bus
207 (such as per-channel cut, dim, solo, invert, etc).
209 _monitor_control.reset (new MonitorProcessor (_session));
210 _monitor_control->activate ();
213 if (is_master() || is_monitor() || is_auditioner()) {
214 _mute_master->set_solo_ignore (true);
217 /* now that we have _meter, its safe to connect to this */
220 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
221 configure_processors (0);
229 DEBUG_TRACE (DEBUG::Destruction, string_compose ("route %1 destructor\n", _name));
231 /* do this early so that we don't get incoming signals as we are going through destruction
236 /* don't use clear_processors here, as it depends on the session which may
237 be half-destroyed by now
240 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
241 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
242 (*i)->drop_references ();
245 _processors.clear ();
249 Route::set_remote_control_id (uint32_t id, bool notify_class_listeners)
251 if (Config->get_remote_model() != UserOrdered) {
255 set_remote_control_id_internal (id, notify_class_listeners);
259 Route::set_remote_control_id_internal (uint32_t id, bool notify_class_listeners)
261 /* force IDs for master/monitor busses and prevent
262 any other route from accidentally getting these IDs
263 (i.e. legacy sessions)
266 if (is_master() && id != MasterBusRemoteControlID) {
267 id = MasterBusRemoteControlID;
270 if (is_monitor() && id != MonitorBusRemoteControlID) {
271 id = MonitorBusRemoteControlID;
278 /* don't allow it to collide */
280 if (!is_master () && !is_monitor() &&
281 (id == MasterBusRemoteControlID || id == MonitorBusRemoteControlID)) {
282 id += MonitorBusRemoteControlID;
285 if (id != remote_control_id()) {
286 _remote_control_id = id;
287 RemoteControlIDChanged ();
289 if (notify_class_listeners) {
290 RemoteControlIDChange ();
296 Route::remote_control_id() const
299 return MasterBusRemoteControlID;
303 return MonitorBusRemoteControlID;
306 return _remote_control_id;
310 Route::has_order_key () const
312 return _has_order_key;
316 Route::order_key () const
322 Route::set_remote_control_id_explicit (uint32_t rid)
324 if (is_master() || is_monitor() || is_auditioner()) {
325 /* hard-coded remote IDs, or no remote ID */
329 if (_remote_control_id != rid) {
330 DEBUG_TRACE (DEBUG::OrderKeys, string_compose ("%1: set edit-based RID to %2\n", name(), rid));
331 _remote_control_id = rid;
332 RemoteControlIDChanged (); /* EMIT SIGNAL (per-route) */
335 /* don't emit the class-level RID signal RemoteControlIDChange here,
336 leave that to the entity that changed the order key, so that we
337 don't get lots of emissions for no good reasons (e.g. when changing
338 all route order keys).
340 See Session::sync_remote_id_from_order_keys() for the (primary|only)
341 spot where that is emitted.
346 Route::set_order_key (uint32_t n)
348 _has_order_key = true;
350 if (_order_key == n) {
356 DEBUG_TRACE (DEBUG::OrderKeys, string_compose ("%1 order key set to %2\n",
357 name(), order_key ()));
359 _session.set_dirty ();
363 Route::ensure_track_or_route_name(string name, Session &session)
365 string newname = name;
367 while (!session.io_name_is_legal (newname)) {
368 newname = bump_name_once (newname, ' ');
375 Route::inc_gain (gain_t fraction, void *src)
377 _amp->inc_gain (fraction, src);
381 Route::set_gain (gain_t val, void *src)
383 if (src != 0 && _route_group && src != _route_group && _route_group->is_active() && _route_group->is_gain()) {
385 if (_route_group->is_relative()) {
387 gain_t usable_gain = _amp->gain();
388 if (usable_gain < 0.000001f) {
389 usable_gain = 0.000001f;
393 if (delta < 0.000001f) {
397 delta -= usable_gain;
402 gain_t factor = delta / usable_gain;
405 factor = _route_group->get_max_factor(factor);
406 if (factor == 0.0f) {
407 _amp->gain_control()->Changed(); /* EMIT SIGNAL */
411 factor = _route_group->get_min_factor(factor);
412 if (factor == 0.0f) {
413 _amp->gain_control()->Changed(); /* EMIT SIGNAL */
418 _route_group->foreach_route (boost::bind (&Route::inc_gain, _1, factor, _route_group));
422 _route_group->foreach_route (boost::bind (&Route::set_gain, _1, val, _route_group));
428 if (val == _amp->gain()) {
432 _amp->set_gain (val, src);
436 Route::inc_trim (gain_t fraction, void *src)
438 _trim->inc_gain (fraction, src);
442 Route::set_trim (gain_t val, void * /* src */)
444 // TODO route group, see set_gain()
445 _trim->set_gain (val, 0);
449 Route::maybe_declick (BufferSet&, framecnt_t, int)
451 /* this is the "bus" implementation and they never declick.
456 /** Process this route for one (sub) cycle (process thread)
458 * @param bufs Scratch buffers to use for the signal path
459 * @param start_frame Initial transport frame
460 * @param end_frame Final transport frame
461 * @param nframes Number of frames to output (to ports)
463 * Note that (end_frame - start_frame) may not be equal to nframes when the
464 * transport speed isn't 1.0 (eg varispeed).
467 Route::process_output_buffers (BufferSet& bufs,
468 framepos_t start_frame, framepos_t end_frame, pframes_t nframes,
469 int declick, bool gain_automation_ok)
471 /* Caller must hold process lock */
472 assert (!AudioEngine::instance()->process_lock().trylock());
474 Glib::Threads::RWLock::ReaderLock lm (_processor_lock, Glib::Threads::TRY_LOCK);
476 // can this actually happen? functions calling process_output_buffers()
477 // already take a reader-lock.
478 bufs.silence (nframes, 0);
482 /* figure out if we're going to use gain automation */
483 if (gain_automation_ok) {
484 _amp->set_gain_automation_buffer (_session.gain_automation_buffer ());
485 _amp->setup_gain_automation (
486 start_frame + _signal_latency_at_amp_position,
487 end_frame + _signal_latency_at_amp_position,
490 _trim->set_gain_automation_buffer (_session.trim_automation_buffer ());
491 _trim->setup_gain_automation (
492 start_frame + _signal_latency_at_trim_position,
493 end_frame + _signal_latency_at_trim_position,
496 _amp->apply_gain_automation (false);
497 _trim->apply_gain_automation (false);
500 /* Tell main outs what to do about monitoring. We do this so that
501 on a transition between monitoring states we get a de-clicking gain
502 change in the _main_outs delivery, if config.get_use_monitor_fades()
505 We override this in the case where we have an internal generator.
507 bool silence = _have_internal_generator ? false : (monitoring_state () == MonitoringSilence);
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_by_self (true);
784 _monitor_send->deactivate ();
785 _mute_master->set_soloed_by_self (false);
787 _mute_master->set_soloed_by_others (false);
789 listen_changed (src); /* EMIT SIGNAL */
795 Route::listening_via_monitor () const
798 return _monitor_send->active ();
805 Route::set_solo_safe (bool yn, void *src)
807 if (_solo_safe != yn) {
809 solo_safe_changed (src);
814 Route::solo_safe() const
820 Route::set_solo (bool yn, void *src)
823 DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 ignore solo change due to solo-safe\n", name()));
827 if (is_master() || is_monitor() || is_auditioner()) {
828 DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 ignore solo change (master, monitor or auditioner)\n", name()));
832 if (_route_group && src != _route_group && _route_group->is_active() && _route_group->is_solo()) {
833 _route_group->foreach_route (boost::bind (&Route::set_solo, _1, yn, _route_group));
837 DEBUG_TRACE (DEBUG::Solo, string_compose ("%1: set solo => %2, src: %3 grp ? %4 currently self-soloed ? %5\n",
838 name(), yn, src, (src == _route_group), self_soloed()));
840 if (self_soloed() != yn) {
842 set_mute_master_solo ();
843 solo_changed (true, src); /* EMIT SIGNAL */
844 _solo_control->Changed (); /* EMIT SIGNAL */
847 /* XXX TRACKS DEVELOPERS: THIS LOGIC SUGGESTS THAT YOU ARE NOT AWARE OF
848 Config->get_solo_mute_overrride().
851 if (yn && Profile->get_trx()) {
852 set_mute (false, src);
857 Route::set_self_solo (bool yn)
859 DEBUG_TRACE (DEBUG::Solo, string_compose ("%1: set SELF solo => %2\n", name(), yn));
864 Route::mod_solo_by_others_upstream (int32_t delta)
867 DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 ignore solo-by-upstream due to solo-safe\n", name()));
871 DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 mod solo-by-upstream by %2, current up = %3 down = %4\n",
872 name(), delta, _soloed_by_others_upstream, _soloed_by_others_downstream));
874 uint32_t old_sbu = _soloed_by_others_upstream;
877 if (_soloed_by_others_upstream >= (uint32_t) abs (delta)) {
878 _soloed_by_others_upstream += delta;
880 _soloed_by_others_upstream = 0;
883 _soloed_by_others_upstream += delta;
886 DEBUG_TRACE (DEBUG::Solo, string_compose (
887 "%1 SbU delta %2 = %3 old = %4 sbd %5 ss %6 exclusive %7\n",
888 name(), delta, _soloed_by_others_upstream, old_sbu,
889 _soloed_by_others_downstream, _self_solo, Config->get_exclusive_solo()));
891 /* push the inverse solo change to everything that feeds us.
893 This is important for solo-within-group. When we solo 1 track out of N that
894 feed a bus, that track will cause mod_solo_by_upstream (+1) to be called
895 on the bus. The bus then needs to call mod_solo_by_downstream (-1) on all
896 tracks that feed it. This will silence them if they were audible because
897 of a bus solo, but the newly soloed track will still be audible (because
900 but .. do this only when we are being told to solo-by-upstream (i.e delta = +1),
904 if ((_self_solo || _soloed_by_others_downstream) &&
905 ((old_sbu == 0 && _soloed_by_others_upstream > 0) ||
906 (old_sbu > 0 && _soloed_by_others_upstream == 0))) {
908 if (delta > 0 || !Config->get_exclusive_solo()) {
909 DEBUG_TRACE (DEBUG::Solo, "\t ... INVERT push\n");
910 for (FedBy::iterator i = _fed_by.begin(); i != _fed_by.end(); ++i) {
911 boost::shared_ptr<Route> sr = i->r.lock();
913 sr->mod_solo_by_others_downstream (-delta);
919 set_mute_master_solo ();
920 solo_changed (false, this);
924 Route::mod_solo_by_others_downstream (int32_t delta)
927 DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 ignore solo-by-downstream due to solo safe\n", name()));
931 DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 mod solo-by-downstream by %2, current up = %3 down = %4\n",
932 name(), delta, _soloed_by_others_upstream, _soloed_by_others_downstream));
935 if (_soloed_by_others_downstream >= (uint32_t) abs (delta)) {
936 _soloed_by_others_downstream += delta;
938 _soloed_by_others_downstream = 0;
941 _soloed_by_others_downstream += delta;
944 DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 SbD delta %2 = %3\n", name(), delta, _soloed_by_others_downstream));
946 set_mute_master_solo ();
947 solo_changed (false, this);
951 Route::set_mute_master_solo ()
953 _mute_master->set_soloed_by_self (self_soloed());
954 _mute_master->set_soloed_by_others (soloed_by_others_downstream() || soloed_by_others_upstream());
958 Route::mod_solo_isolated_by_upstream (bool yn, void* src)
960 bool old = solo_isolated ();
963 if (_solo_isolated_by_upstream >= 1) {
964 _solo_isolated_by_upstream--;
966 _solo_isolated_by_upstream = 0;
969 _solo_isolated_by_upstream++;
972 if (solo_isolated() != old) {
973 /* solo isolated status changed */
974 _mute_master->set_solo_ignore (yn);
975 solo_isolated_changed (src);
980 Route::set_solo_isolated (bool yn, void *src)
982 if (is_master() || is_monitor() || is_auditioner()) {
986 if (_route_group && src != _route_group && _route_group->is_active() && _route_group->is_solo()) {
987 _route_group->foreach_route (boost::bind (&Route::set_solo_isolated, _1, yn, _route_group));
991 bool changed = false;
994 if (_solo_isolated == false) {
995 _mute_master->set_solo_ignore (true);
998 _solo_isolated = true;
1000 if (_solo_isolated == true) {
1001 _solo_isolated = false;
1002 _mute_master->set_solo_ignore (false);
1012 /* forward propagate solo-isolate status to everything fed by this route, but not those via sends only */
1014 boost::shared_ptr<RouteList> routes = _session.get_routes ();
1015 for (RouteList::iterator i = routes->begin(); i != routes->end(); ++i) {
1017 if ((*i).get() == this || (*i)->is_master() || (*i)->is_monitor() || (*i)->is_auditioner()) {
1022 bool does_feed = feeds (*i, &sends_only);
1024 if (does_feed && !sends_only) {
1025 (*i)->mod_solo_isolated_by_upstream (yn, src);
1029 /* XXX should we back-propagate as well? (April 2010: myself and chris goddard think not) */
1031 solo_isolated_changed (src);
1035 Route::solo_isolated () const
1037 return (_solo_isolated == true) || (_solo_isolated_by_upstream > 0);
1041 Route::set_mute_points (MuteMaster::MutePoint mp)
1043 _mute_master->set_mute_points (mp);
1044 mute_points_changed (); /* EMIT SIGNAL */
1046 if (_mute_master->muted_by_self()) {
1047 mute_changed (this); /* EMIT SIGNAL */
1048 _mute_control->Changed (); /* EMIT SIGNAL */
1053 Route::set_mute (bool yn, void *src)
1055 if (_route_group && src != _route_group && _route_group->is_active() && _route_group->is_mute()) {
1056 _route_group->foreach_route (boost::bind (&Route::set_mute, _1, yn, _route_group));
1060 if (muted() != yn) {
1061 _mute_master->set_muted_by_self (yn);
1062 /* allow any derived classes to respond to the mute change
1063 before anybody else knows about it.
1066 /* tell everyone else */
1067 mute_changed (src); /* EMIT SIGNAL */
1068 _mute_control->Changed (); /* EMIT SIGNAL */
1073 Route::muted () const
1075 return _mute_master->muted_by_self();
1079 Route::muted_by_others () const
1081 //master is never muted by others
1085 //now check to see if something is soloed (and I am not)
1086 return (_session.soloing() && !self_soloed() && !solo_isolated());
1091 dump_processors(const string& name, const list<boost::shared_ptr<Processor> >& procs)
1093 cerr << name << " {" << endl;
1094 for (list<boost::shared_ptr<Processor> >::const_iterator p = procs.begin();
1095 p != procs.end(); ++p) {
1096 cerr << "\t" << (*p)->name() << " ID = " << (*p)->id() << " @ " << (*p) << endl;
1098 cerr << "}" << endl;
1102 /** Supposing that we want to insert a Processor at a given Placement, return
1103 * the processor to add the new one before (or 0 to add at the end).
1105 boost::shared_ptr<Processor>
1106 Route::before_processor_for_placement (Placement p)
1108 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
1110 ProcessorList::iterator loc;
1112 if (p == PreFader) {
1113 /* generic pre-fader: insert immediately before the amp */
1114 loc = find (_processors.begin(), _processors.end(), _amp);
1116 /* generic post-fader: insert right before the main outs */
1117 loc = find (_processors.begin(), _processors.end(), _main_outs);
1120 return loc != _processors.end() ? *loc : boost::shared_ptr<Processor> ();
1123 /** Supposing that we want to insert a Processor at a given index, return
1124 * the processor to add the new one before (or 0 to add at the end).
1126 boost::shared_ptr<Processor>
1127 Route::before_processor_for_index (int index)
1130 return boost::shared_ptr<Processor> ();
1133 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
1135 ProcessorList::iterator i = _processors.begin ();
1137 while (i != _processors.end() && j < index) {
1138 if ((*i)->display_to_user()) {
1145 return (i != _processors.end() ? *i : boost::shared_ptr<Processor> ());
1148 /** Add a processor either pre- or post-fader
1149 * @return 0 on success, non-0 on failure.
1152 Route::add_processor (boost::shared_ptr<Processor> processor, Placement placement, ProcessorStreams* err, bool activation_allowed)
1154 return add_processor (processor, before_processor_for_placement (placement), err, activation_allowed);
1158 /** Add a processor to a route such that it ends up with a given index into the visible processors.
1159 * @param index Index to add the processor at, or -1 to add at the end of the list.
1160 * @return 0 on success, non-0 on failure.
1163 Route::add_processor_by_index (boost::shared_ptr<Processor> processor, int index, ProcessorStreams* err, bool activation_allowed)
1165 return add_processor (processor, before_processor_for_index (index), err, activation_allowed);
1168 /** Add a processor to the route.
1169 * @param before An existing processor in the list, or 0; the new processor will be inserted immediately before it (or at the end).
1170 * @return 0 on success, non-0 on failure.
1173 Route::add_processor (boost::shared_ptr<Processor> processor, boost::shared_ptr<Processor> before, ProcessorStreams* err, bool activation_allowed)
1175 assert (processor != _meter);
1176 assert (processor != _main_outs);
1178 DEBUG_TRACE (DEBUG::Processors, string_compose (
1179 "%1 adding processor %2\n", name(), processor->name()));
1181 if (!AudioEngine::instance()->connected() || !processor) {
1186 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
1187 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
1188 ProcessorState pstate (this);
1190 boost::shared_ptr<PluginInsert> pi;
1191 boost::shared_ptr<PortInsert> porti;
1193 if (processor == _amp) {
1194 /* Ensure that only one amp is in the list at any time */
1195 ProcessorList::iterator check = find (_processors.begin(), _processors.end(), processor);
1196 if (check != _processors.end()) {
1197 if (before == _amp) {
1198 /* Already in position; all is well */
1201 _processors.erase (check);
1206 assert (find (_processors.begin(), _processors.end(), processor) == _processors.end ());
1208 ProcessorList::iterator loc;
1210 /* inserting before a processor; find it */
1211 loc = find (_processors.begin(), _processors.end(), before);
1212 if (loc == _processors.end ()) {
1217 /* inserting at end */
1218 loc = _processors.end ();
1221 _processors.insert (loc, processor);
1222 processor->set_owner (this);
1224 // Set up processor list channels. This will set processor->[input|output]_streams(),
1225 // configure redirect ports properly, etc.
1228 if (configure_processors_unlocked (err)) {
1230 configure_processors_unlocked (0); // it worked before we tried to add it ...
1235 if ((pi = boost::dynamic_pointer_cast<PluginInsert>(processor)) != 0) {
1237 if (pi->has_no_inputs ()) {
1238 /* generator plugin */
1239 _have_internal_generator = true;
1244 if (activation_allowed && (!_session.get_bypass_all_loaded_plugins () || !processor->display_to_user ())) {
1245 processor->activate ();
1248 processor->ActiveChanged.connect_same_thread (*this, boost::bind (&Session::update_latency_compensation, &_session, false));
1250 _output->set_user_latency (0);
1253 reset_instrument_info ();
1254 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
1255 set_processor_positions ();
1261 Route::add_processor_from_xml_2X (const XMLNode& node, int version)
1263 const XMLProperty *prop;
1266 boost::shared_ptr<Processor> processor;
1268 /* bit of a hack: get the `placement' property from the <Redirect> tag here
1269 so that we can add the processor in the right place (pre/post-fader)
1272 XMLNodeList const & children = node.children ();
1273 XMLNodeList::const_iterator i = children.begin ();
1275 while (i != children.end() && (*i)->name() != X_("Redirect")) {
1279 Placement placement = PreFader;
1281 if (i != children.end()) {
1282 if ((prop = (*i)->property (X_("placement"))) != 0) {
1283 placement = Placement (string_2_enum (prop->value(), placement));
1287 if (node.name() == "Insert") {
1289 if ((prop = node.property ("type")) != 0) {
1291 if (prop->value() == "ladspa" || prop->value() == "Ladspa" ||
1292 prop->value() == "lv2" ||
1293 prop->value() == "windows-vst" ||
1294 prop->value() == "lxvst" ||
1295 prop->value() == "audiounit") {
1297 if (_session.get_disable_all_loaded_plugins ()) {
1298 processor.reset (new UnknownProcessor (_session, node));
1300 processor.reset (new PluginInsert (_session));
1305 processor.reset (new PortInsert (_session, _pannable, _mute_master));
1310 } else if (node.name() == "Send") {
1312 boost::shared_ptr<Pannable> sendpan (new Pannable (_session));
1313 processor.reset (new Send (_session, sendpan, _mute_master));
1317 error << string_compose(_("unknown Processor type \"%1\"; ignored"), node.name()) << endmsg;
1321 if (processor->set_state (node, version)) {
1325 //A2 uses the "active" flag in the toplevel redirect node, not in the child plugin/IO
1326 if (i != children.end()) {
1327 if ((prop = (*i)->property (X_("active"))) != 0) {
1328 if ( string_is_affirmative (prop->value()) && (!_session.get_bypass_all_loaded_plugins () || !processor->display_to_user () ) )
1329 processor->activate();
1331 processor->deactivate();
1335 return (add_processor (processor, placement, 0, false) == 0);
1338 catch (failed_constructor &err) {
1339 warning << _("processor could not be created. Ignored.") << endmsg;
1345 Route::add_processors (const ProcessorList& others, boost::shared_ptr<Processor> before, ProcessorStreams* err)
1347 /* NOTE: this is intended to be used ONLY when copying
1348 processors from another Route. Hence the subtle
1349 differences between this and ::add_processor()
1352 ProcessorList::iterator loc;
1355 loc = find(_processors.begin(), _processors.end(), before);
1357 /* nothing specified - at end */
1358 loc = _processors.end ();
1361 if (!_session.engine().connected()) {
1365 if (others.empty()) {
1370 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
1371 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
1372 ProcessorState pstate (this);
1374 for (ProcessorList::const_iterator i = others.begin(); i != others.end(); ++i) {
1380 boost::shared_ptr<PluginInsert> pi;
1382 if ((pi = boost::dynamic_pointer_cast<PluginInsert>(*i)) != 0) {
1386 _processors.insert (loc, *i);
1387 (*i)->set_owner (this);
1389 if ((*i)->active()) {
1393 /* Think: does this really need to be called for every processor in the loop? */
1395 if (configure_processors_unlocked (err)) {
1397 configure_processors_unlocked (0); // it worked before we tried to add it ...
1402 (*i)->ActiveChanged.connect_same_thread (*this, boost::bind (&Session::update_latency_compensation, &_session, false));
1405 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
1406 boost::shared_ptr<PluginInsert> pi;
1408 if ((pi = boost::dynamic_pointer_cast<PluginInsert>(*i)) != 0) {
1409 if (pi->has_no_inputs ()) {
1410 _have_internal_generator = true;
1416 _output->set_user_latency (0);
1419 reset_instrument_info ();
1420 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
1421 set_processor_positions ();
1427 Route::placement_range(Placement p, ProcessorList::iterator& start, ProcessorList::iterator& end)
1429 if (p == PreFader) {
1430 start = _processors.begin();
1431 end = find(_processors.begin(), _processors.end(), _amp);
1433 start = find(_processors.begin(), _processors.end(), _amp);
1435 end = _processors.end();
1439 /** Turn off all processors with a given placement
1440 * @param p Placement of processors to disable
1443 Route::disable_processors (Placement p)
1445 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
1447 ProcessorList::iterator start, end;
1448 placement_range(p, start, end);
1450 for (ProcessorList::iterator i = start; i != end; ++i) {
1451 (*i)->deactivate ();
1454 _session.set_dirty ();
1457 /** Turn off all redirects
1460 Route::disable_processors ()
1462 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
1464 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
1465 (*i)->deactivate ();
1468 _session.set_dirty ();
1471 /** Turn off all redirects with a given placement
1472 * @param p Placement of redirects to disable
1475 Route::disable_plugins (Placement p)
1477 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
1479 ProcessorList::iterator start, end;
1480 placement_range(p, start, end);
1482 for (ProcessorList::iterator i = start; i != end; ++i) {
1483 if (boost::dynamic_pointer_cast<PluginInsert> (*i)) {
1484 (*i)->deactivate ();
1488 _session.set_dirty ();
1491 /** Turn off all plugins
1494 Route::disable_plugins ()
1496 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
1498 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
1499 if (boost::dynamic_pointer_cast<PluginInsert> (*i)) {
1500 (*i)->deactivate ();
1504 _session.set_dirty ();
1509 Route::ab_plugins (bool forward)
1511 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
1515 /* forward = turn off all active redirects, and mark them so that the next time
1516 we go the other way, we will revert them
1519 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
1520 if (!boost::dynamic_pointer_cast<PluginInsert> (*i)) {
1524 if ((*i)->active()) {
1525 (*i)->deactivate ();
1526 (*i)->set_next_ab_is_active (true);
1528 (*i)->set_next_ab_is_active (false);
1534 /* backward = if the redirect was marked to go active on the next ab, do so */
1536 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
1538 if (!boost::dynamic_pointer_cast<PluginInsert> (*i)) {
1542 if ((*i)->get_next_ab_is_active()) {
1545 (*i)->deactivate ();
1550 _session.set_dirty ();
1554 /** Remove processors with a given placement.
1555 * @param p Placement of processors to remove.
1558 Route::clear_processors (Placement p)
1560 if (!_session.engine().connected()) {
1564 bool already_deleting = _session.deletion_in_progress();
1565 if (!already_deleting) {
1566 _session.set_deletion_in_progress();
1570 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
1571 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
1572 ProcessorList new_list;
1573 ProcessorStreams err;
1574 bool seen_amp = false;
1576 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
1582 if ((*i) == _amp || (*i) == _meter || (*i) == _main_outs || (*i) == _delayline || (*i) == _trim) {
1584 /* you can't remove these */
1586 new_list.push_back (*i);
1593 new_list.push_back (*i);
1596 (*i)->drop_references ();
1604 (*i)->drop_references ();
1607 new_list.push_back (*i);
1614 _processors = new_list;
1615 configure_processors_unlocked (&err); // this can't fail
1618 processor_max_streams.reset();
1619 _have_internal_generator = false;
1620 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
1621 set_processor_positions ();
1623 reset_instrument_info ();
1625 if (!already_deleting) {
1626 _session.clear_deletion_in_progress();
1631 Route::remove_processor (boost::shared_ptr<Processor> processor, ProcessorStreams* err, bool need_process_lock)
1633 // TODO once the export point can be configured properly, do something smarter here
1634 if (processor == _capturing_processor) {
1635 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock (), Glib::Threads::NOT_LOCK);
1636 if (need_process_lock) {
1640 _capturing_processor.reset();
1642 if (need_process_lock) {
1647 /* these can never be removed */
1649 if (processor == _amp || processor == _meter || processor == _main_outs || processor == _delayline || processor == _trim) {
1653 if (!_session.engine().connected()) {
1657 processor_max_streams.reset();
1660 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock (), Glib::Threads::NOT_LOCK);
1661 if (need_process_lock) {
1665 /* Caller must hold process lock */
1666 assert (!AudioEngine::instance()->process_lock().trylock());
1668 Glib::Threads::RWLock::WriterLock lm (_processor_lock); // XXX deadlock after export
1670 ProcessorState pstate (this);
1672 ProcessorList::iterator i;
1673 bool removed = false;
1675 for (i = _processors.begin(); i != _processors.end(); ) {
1676 if (*i == processor) {
1678 /* move along, see failure case for configure_processors()
1679 where we may need to reconfigure the processor.
1682 /* stop redirects that send signals to JACK ports
1683 from causing noise as a result of no longer being
1687 boost::shared_ptr<IOProcessor> iop;
1689 if ((iop = boost::dynamic_pointer_cast<IOProcessor> (*i)) != 0) {
1693 i = _processors.erase (i);
1701 _output->set_user_latency (0);
1709 if (configure_processors_unlocked (err)) {
1711 /* we know this will work, because it worked before :) */
1712 configure_processors_unlocked (0);
1716 _have_internal_generator = false;
1718 for (i = _processors.begin(); i != _processors.end(); ++i) {
1719 boost::shared_ptr<PluginInsert> pi;
1721 if ((pi = boost::dynamic_pointer_cast<PluginInsert>(*i)) != 0) {
1722 if (pi->has_no_inputs ()) {
1723 _have_internal_generator = true;
1728 if (need_process_lock) {
1733 reset_instrument_info ();
1734 processor->drop_references ();
1735 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
1736 set_processor_positions ();
1742 Route::remove_processors (const ProcessorList& to_be_deleted, ProcessorStreams* err)
1744 ProcessorList deleted;
1746 if (!_session.engine().connected()) {
1750 processor_max_streams.reset();
1753 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
1754 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
1755 ProcessorState pstate (this);
1757 ProcessorList::iterator i;
1758 boost::shared_ptr<Processor> processor;
1760 for (i = _processors.begin(); i != _processors.end(); ) {
1764 /* these can never be removed */
1766 if (processor == _amp || processor == _meter || processor == _main_outs || processor == _delayline || processor == _trim) {
1771 /* see if its in the list of processors to delete */
1773 if (find (to_be_deleted.begin(), to_be_deleted.end(), processor) == to_be_deleted.end()) {
1778 /* stop IOProcessors that send to JACK ports
1779 from causing noise as a result of no longer being
1783 boost::shared_ptr<IOProcessor> iop;
1785 if ((iop = boost::dynamic_pointer_cast<IOProcessor> (processor)) != 0) {
1789 deleted.push_back (processor);
1790 i = _processors.erase (i);
1793 if (deleted.empty()) {
1794 /* none of those in the requested list were found */
1798 _output->set_user_latency (0);
1800 if (configure_processors_unlocked (err)) {
1802 /* we know this will work, because it worked before :) */
1803 configure_processors_unlocked (0);
1808 _have_internal_generator = false;
1810 for (i = _processors.begin(); i != _processors.end(); ++i) {
1811 boost::shared_ptr<PluginInsert> pi;
1813 if ((pi = boost::dynamic_pointer_cast<PluginInsert>(*i)) != 0) {
1814 if (pi->has_no_inputs ()) {
1815 _have_internal_generator = true;
1822 /* now try to do what we need to so that those that were removed will be deleted */
1824 for (ProcessorList::iterator i = deleted.begin(); i != deleted.end(); ++i) {
1825 (*i)->drop_references ();
1828 reset_instrument_info ();
1829 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
1830 set_processor_positions ();
1836 Route::reset_instrument_info ()
1838 boost::shared_ptr<Processor> instr = the_instrument();
1840 _instrument_info.set_internal_instrument (instr);
1844 /** Caller must hold process lock */
1846 Route::configure_processors (ProcessorStreams* err)
1848 #ifndef PLATFORM_WINDOWS
1849 assert (!AudioEngine::instance()->process_lock().trylock());
1852 if (!_in_configure_processors) {
1853 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
1854 return configure_processors_unlocked (err);
1861 Route::input_streams () const
1863 return _input->n_ports ();
1866 list<pair<ChanCount, ChanCount> >
1867 Route::try_configure_processors (ChanCount in, ProcessorStreams* err)
1869 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
1871 return try_configure_processors_unlocked (in, err);
1874 list<pair<ChanCount, ChanCount> >
1875 Route::try_configure_processors_unlocked (ChanCount in, ProcessorStreams* err)
1877 // Check each processor in order to see if we can configure as requested
1879 list<pair<ChanCount, ChanCount> > configuration;
1882 DEBUG_TRACE (DEBUG::Processors, string_compose ("%1: configure processors\n", _name));
1883 DEBUG_TRACE (DEBUG::Processors, "{\n");
1885 for (ProcessorList::iterator p = _processors.begin(); p != _processors.end(); ++p, ++index) {
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 (!(*p)->configure_io(c->first, c->second)) {
1944 DEBUG_TRACE (DEBUG::Processors, string_compose ("%1: configuration failed\n", _name));
1946 processor_max_streams = ChanCount::max(processor_max_streams, c->first);
1947 processor_max_streams = ChanCount::max(processor_max_streams, c->second);
1949 boost::shared_ptr<PluginInsert> pi;
1950 if ((pi = boost::dynamic_pointer_cast<PluginInsert>(*p)) != 0) {
1951 /* plugins connected via Split Match may have more channels.
1952 * route/scratch buffers are needed for all of them*/
1953 processor_max_streams = ChanCount::max(processor_max_streams, pi->input_streams());
1954 processor_max_streams = ChanCount::max(processor_max_streams, pi->natural_input_streams());
1958 if (boost::dynamic_pointer_cast<Delivery> (*p)
1959 && boost::dynamic_pointer_cast<Delivery> (*p)->role() == Delivery::Main) {
1960 /* main delivery will increase port count to match input.
1961 * the Delivery::Main is usually the last processor - followed only by
1964 seen_mains_out = true;
1966 if (!seen_mains_out) {
1967 processor_out_streams = out;
1973 _meter->set_max_channels (processor_max_streams);
1976 /* make sure we have sufficient scratch buffers to cope with the new processor
1979 _session.ensure_buffers (n_process_buffers ());
1981 DEBUG_TRACE (DEBUG::Processors, string_compose ("%1: configuration complete\n", _name));
1983 _in_configure_processors = false;
1987 /** Set all visible processors to a given active state (except Fader, whose state is not changed)
1988 * @param state New active state for those processors.
1991 Route::all_visible_processors_active (bool state)
1993 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
1995 if (_processors.empty()) {
1999 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
2000 if (!(*i)->display_to_user() || boost::dynamic_pointer_cast<Amp> (*i)) {
2007 (*i)->deactivate ();
2011 _session.set_dirty ();
2015 Route::processors_reorder_needs_configure (const ProcessorList& new_order)
2017 /* check if re-order requires re-configuration of any processors
2018 * -> compare channel configuration for all processors
2020 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
2021 ChanCount c = input_streams ();
2023 for (ProcessorList::const_iterator j = new_order.begin(); j != new_order.end(); ++j) {
2025 if (c != (*j)->input_streams()) {
2028 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
2031 if ((*i)->input_streams() != c) {
2034 c = (*i)->output_streams();
2046 __attribute__((annotate("realtime")))
2049 Route::apply_processor_order (const ProcessorList& new_order)
2051 /* need to hold processor_lock; either read or write lock
2052 * and the engine process_lock.
2053 * Due to r/w lock ambiguity we can only assert the latter
2055 assert (!AudioEngine::instance()->process_lock().trylock());
2058 /* "new_order" is an ordered list of processors to be positioned according to "placement".
2059 * NOTE: all processors in "new_order" MUST be marked as display_to_user(). There maybe additional
2060 * processors in the current actual processor list that are hidden. Any visible processors
2061 * in the current list but not in "new_order" will be assumed to be deleted.
2064 /* "as_it_will_be" and "_processors" are lists of shared pointers.
2065 * actual memory usage is small, but insert/erase is not actually rt-safe :(
2066 * (note though that ::processors_reorder_needs_configure() ensured that
2067 * this function will only ever be called from the rt-thread if no processor were removed)
2069 * either way, I can't proove it, but an x-run due to re-order here is less likley
2070 * than an x-run-less 'ardour-silent cycle' both of which effectively "click".
2073 ProcessorList as_it_will_be;
2074 ProcessorList::iterator oiter;
2075 ProcessorList::const_iterator niter;
2077 oiter = _processors.begin();
2078 niter = new_order.begin();
2080 while (niter != new_order.end()) {
2082 /* if the next processor in the old list is invisible (i.e. should not be in the new order)
2083 then append it to the temp list.
2085 Otherwise, see if the next processor in the old list is in the new list. if not,
2086 its been deleted. If its there, append it to the temp list.
2089 if (oiter == _processors.end()) {
2091 /* no more elements in the old list, so just stick the rest of
2092 the new order onto the temp list.
2095 as_it_will_be.insert (as_it_will_be.end(), niter, new_order.end());
2096 while (niter != new_order.end()) {
2103 if (!(*oiter)->display_to_user()) {
2105 as_it_will_be.push_back (*oiter);
2109 /* visible processor: check that its in the new order */
2111 if (find (new_order.begin(), new_order.end(), (*oiter)) == new_order.end()) {
2112 /* deleted: do nothing, shared_ptr<> will clean up */
2114 /* ignore this one, and add the next item from the new order instead */
2115 as_it_will_be.push_back (*niter);
2120 /* now remove from old order - its taken care of no matter what */
2121 oiter = _processors.erase (oiter);
2125 _processors.insert (oiter, as_it_will_be.begin(), as_it_will_be.end());
2127 /* If the meter is in a custom position, find it and make a rough note of its position */
2128 maybe_note_meter_position ();
2132 Route::reorder_processors (const ProcessorList& new_order, ProcessorStreams* err)
2134 // it a change is already queued, wait for it
2135 // (unless engine is stopped. apply immediately and proceed
2136 while (g_atomic_int_get (&_pending_process_reorder)) {
2137 if (!AudioEngine::instance()->running()) {
2138 DEBUG_TRACE (DEBUG::Processors, "offline apply queued processor re-order.\n");
2139 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
2141 apply_processor_order(_pending_processor_order);
2142 setup_invisible_processors ();
2144 g_atomic_int_set (&_pending_process_reorder, 0);
2146 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
2147 set_processor_positions ();
2149 // TODO rather use a semaphore or something.
2150 // but since ::reorder_processors() is called
2151 // from the GUI thread, this is fine..
2156 if (processors_reorder_needs_configure (new_order) || !AudioEngine::instance()->running()) {
2158 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
2159 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
2160 ProcessorState pstate (this);
2162 apply_processor_order (new_order);
2164 if (configure_processors_unlocked (err)) {
2172 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
2173 set_processor_positions ();
2176 DEBUG_TRACE (DEBUG::Processors, "Queue clickless processor re-order.\n");
2177 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
2179 // _pending_processor_order is protected by _processor_lock
2180 _pending_processor_order = new_order;
2181 g_atomic_int_set (&_pending_process_reorder, 1);
2194 Route::get_template()
2196 return state(false);
2200 Route::state(bool full_state)
2202 XMLNode *node = new XMLNode("Route");
2203 ProcessorList::iterator i;
2206 id().print (buf, sizeof (buf));
2207 node->add_property("id", buf);
2208 node->add_property ("name", _name);
2209 node->add_property("default-type", _default_type.to_string());
2212 node->add_property("flags", enum_2_string (_flags));
2215 node->add_property("active", _active?"yes":"no");
2217 boost::to_string (_phase_invert, p);
2218 node->add_property("phase-invert", p);
2219 node->add_property("denormal-protection", _denormal_protection?"yes":"no");
2220 node->add_property("meter-point", enum_2_string (_meter_point));
2222 node->add_property("meter-type", enum_2_string (_meter_type));
2225 node->add_property("route-group", _route_group->name());
2228 snprintf (buf, sizeof (buf), "%d", _order_key);
2229 node->add_property ("order-key", buf);
2230 node->add_property ("self-solo", (_self_solo ? "yes" : "no"));
2231 snprintf (buf, sizeof (buf), "%d", _soloed_by_others_upstream);
2232 node->add_property ("soloed-by-upstream", buf);
2233 snprintf (buf, sizeof (buf), "%d", _soloed_by_others_downstream);
2234 node->add_property ("soloed-by-downstream", buf);
2235 node->add_property ("solo-isolated", solo_isolated() ? "yes" : "no");
2236 node->add_property ("solo-safe", _solo_safe ? "yes" : "no");
2238 node->add_child_nocopy (_input->state (full_state));
2239 node->add_child_nocopy (_output->state (full_state));
2240 node->add_child_nocopy (_solo_control->get_state ());
2241 node->add_child_nocopy (_mute_control->get_state ());
2242 node->add_child_nocopy (_mute_master->get_state ());
2245 node->add_child_nocopy (Automatable::get_automation_xml_state ());
2248 XMLNode* remote_control_node = new XMLNode (X_("RemoteControl"));
2249 snprintf (buf, sizeof (buf), "%d", _remote_control_id);
2250 remote_control_node->add_property (X_("id"), buf);
2251 node->add_child_nocopy (*remote_control_node);
2253 if (_comment.length()) {
2254 XMLNode *cmt = node->add_child ("Comment");
2255 cmt->add_content (_comment);
2259 node->add_child_nocopy (_pannable->state (full_state));
2262 for (i = _processors.begin(); i != _processors.end(); ++i) {
2264 /* template save: do not include internal sends functioning as
2265 aux sends because the chance of the target ID
2266 in the session where this template is used
2269 similarly, do not save listen sends which connect to
2270 the monitor section, because these will always be
2273 boost::shared_ptr<InternalSend> is;
2275 if ((is = boost::dynamic_pointer_cast<InternalSend> (*i)) != 0) {
2276 if (is->role() == Delivery::Listen) {
2281 node->add_child_nocopy((*i)->state (full_state));
2285 node->add_child_copy (*_extra_xml);
2288 if (_custom_meter_position_noted) {
2289 boost::shared_ptr<Processor> after = _processor_after_last_custom_meter.lock ();
2291 after->id().print (buf, sizeof (buf));
2292 node->add_property (X_("processor-after-last-custom-meter"), buf);
2300 Route::set_state (const XMLNode& node, int version)
2302 if (version < 3000) {
2303 return set_state_2X (node, version);
2307 XMLNodeConstIterator niter;
2309 const XMLProperty *prop;
2311 if (node.name() != "Route"){
2312 error << string_compose(_("Bad node sent to Route::set_state() [%1]"), node.name()) << endmsg;
2316 if ((prop = node.property (X_("name"))) != 0) {
2317 Route::set_name (prop->value());
2321 _initial_io_setup = true;
2323 if ((prop = node.property (X_("flags"))) != 0) {
2324 _flags = Flag (string_2_enum (prop->value(), _flags));
2329 if (is_master() || is_monitor() || is_auditioner()) {
2330 _mute_master->set_solo_ignore (true);
2334 /* monitor bus does not get a panner, but if (re)created
2335 via XML, it will already have one by the time we
2336 call ::set_state(). so ... remove it.
2341 /* add all processors (except amp, which is always present) */
2343 nlist = node.children();
2344 XMLNode processor_state (X_("processor_state"));
2346 Stateful::save_extra_xml (node);
2348 for (niter = nlist.begin(); niter != nlist.end(); ++niter){
2352 if (child->name() == IO::state_node_name) {
2353 if ((prop = child->property (X_("direction"))) == 0) {
2357 if (prop->value() == "Input") {
2358 _input->set_state (*child, version);
2359 } else if (prop->value() == "Output") {
2360 _output->set_state (*child, version);
2364 if (child->name() == X_("Processor")) {
2365 processor_state.add_child_copy (*child);
2368 if (child->name() == X_("Pannable")) {
2370 _pannable->set_state (*child, version);
2372 warning << string_compose (_("Pannable state found for route (%1) without a panner!"), name()) << endmsg;
2377 if ((prop = node.property (X_("meter-point"))) != 0) {
2378 MeterPoint mp = MeterPoint (string_2_enum (prop->value (), _meter_point));
2379 set_meter_point (mp, true);
2381 _meter->set_display_to_user (_meter_point == MeterCustom);
2385 if ((prop = node.property (X_("meter-type"))) != 0) {
2386 _meter_type = MeterType (string_2_enum (prop->value (), _meter_type));
2389 _initial_io_setup = false;
2391 set_processor_state (processor_state);
2393 // this looks up the internal instrument in processors
2394 reset_instrument_info();
2396 if ((prop = node.property ("self-solo")) != 0) {
2397 set_self_solo (string_is_affirmative (prop->value()));
2400 if ((prop = node.property ("soloed-by-upstream")) != 0) {
2401 _soloed_by_others_upstream = 0; // needed for mod_.... () to work
2402 mod_solo_by_others_upstream (atoi (prop->value()));
2405 if ((prop = node.property ("soloed-by-downstream")) != 0) {
2406 _soloed_by_others_downstream = 0; // needed for mod_.... () to work
2407 mod_solo_by_others_downstream (atoi (prop->value()));
2410 if ((prop = node.property ("solo-isolated")) != 0) {
2411 set_solo_isolated (string_is_affirmative (prop->value()), this);
2414 if ((prop = node.property ("solo-safe")) != 0) {
2415 set_solo_safe (string_is_affirmative (prop->value()), this);
2418 if ((prop = node.property (X_("phase-invert"))) != 0) {
2419 set_phase_invert (boost::dynamic_bitset<> (prop->value ()));
2422 if ((prop = node.property (X_("denormal-protection"))) != 0) {
2423 set_denormal_protection (string_is_affirmative (prop->value()));
2426 if ((prop = node.property (X_("active"))) != 0) {
2427 bool yn = string_is_affirmative (prop->value());
2428 _active = !yn; // force switch
2429 set_active (yn, this);
2432 if ((prop = node.property (X_("order-key"))) != 0) { // New order key (no separate mixer/editor ordering)
2433 set_order_key (atoi(prop->value()));
2436 if ((prop = node.property (X_("order-keys"))) != 0) { // Deprecated order keys
2440 string::size_type colon, equal;
2441 string remaining = prop->value();
2443 while (remaining.length()) {
2445 if ((equal = remaining.find_first_of ('=')) == string::npos || equal == remaining.length()) {
2446 error << string_compose (_("badly formed order key string in state file! [%1] ... ignored."), remaining)
2449 if (sscanf (remaining.substr (equal+1).c_str(), "%d", &n) != 1) {
2450 error << string_compose (_("badly formed order key string in state file! [%1] ... ignored."), remaining)
2453 string keyname = remaining.substr (0, equal);
2455 if ((keyname == "EditorSort") || (keyname == "editor")) {
2456 cerr << "Setting " << name() << " order key to " << n << " using saved Editor order." << endl;
2462 colon = remaining.find_first_of (':');
2464 if (colon != string::npos) {
2465 remaining = remaining.substr (colon+1);
2472 if ((prop = node.property (X_("processor-after-last-custom-meter"))) != 0) {
2473 PBD::ID id (prop->value ());
2474 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
2475 ProcessorList::const_iterator i = _processors.begin ();
2476 while (i != _processors.end() && (*i)->id() != id) {
2480 if (i != _processors.end ()) {
2481 _processor_after_last_custom_meter = *i;
2482 _custom_meter_position_noted = true;
2486 for (niter = nlist.begin(); niter != nlist.end(); ++niter){
2489 if (child->name() == X_("Comment")) {
2491 /* XXX this is a terrible API design in libxml++ */
2493 XMLNode *cmt = *(child->children().begin());
2494 _comment = cmt->content();
2496 } else if (child->name() == Controllable::xml_node_name && (prop = child->property("name")) != 0) {
2497 if (prop->value() == "solo") {
2498 _solo_control->set_state (*child, version);
2499 } else if (prop->value() == "mute") {
2500 _mute_control->set_state (*child, version);
2503 } else if (child->name() == X_("RemoteControl")) {
2504 if ((prop = child->property (X_("id"))) != 0) {
2506 sscanf (prop->value().c_str(), "%d", &x);
2507 set_remote_control_id_internal (x);
2510 } else if (child->name() == X_("MuteMaster")) {
2511 _mute_master->set_state (*child, version);
2513 } else if (child->name() == Automatable::xml_node_name) {
2514 set_automation_xml_state (*child, Evoral::Parameter(NullAutomation));
2522 Route::set_state_2X (const XMLNode& node, int version)
2524 LocaleGuard lg (X_("C"));
2526 XMLNodeConstIterator niter;
2528 const XMLProperty *prop;
2530 /* 2X things which still remain to be handled:
2536 if (node.name() != "Route") {
2537 error << string_compose(_("Bad node sent to Route::set_state() [%1]"), node.name()) << endmsg;
2541 if ((prop = node.property (X_("flags"))) != 0) {
2542 string f = prop->value ();
2543 boost::replace_all (f, "ControlOut", "MonitorOut");
2544 _flags = Flag (string_2_enum (f, _flags));
2549 if (is_master() || is_monitor() || is_auditioner()) {
2550 _mute_master->set_solo_ignore (true);
2553 if ((prop = node.property (X_("phase-invert"))) != 0) {
2554 boost::dynamic_bitset<> p (_input->n_ports().n_audio ());
2555 if (string_is_affirmative (prop->value ())) {
2558 set_phase_invert (p);
2561 if ((prop = node.property (X_("denormal-protection"))) != 0) {
2562 set_denormal_protection (string_is_affirmative (prop->value()));
2565 if ((prop = node.property (X_("soloed"))) != 0) {
2566 bool yn = string_is_affirmative (prop->value());
2568 /* XXX force reset of solo status */
2570 set_solo (yn, this);
2573 if ((prop = node.property (X_("muted"))) != 0) {
2576 bool muted = string_is_affirmative (prop->value());
2582 if ((prop = node.property (X_("mute-affects-pre-fader"))) != 0) {
2584 if (string_is_affirmative (prop->value())){
2585 mute_point = mute_point + "PreFader";
2590 if ((prop = node.property (X_("mute-affects-post-fader"))) != 0) {
2592 if (string_is_affirmative (prop->value())){
2595 mute_point = mute_point + ",";
2598 mute_point = mute_point + "PostFader";
2603 if ((prop = node.property (X_("mute-affects-control-outs"))) != 0) {
2605 if (string_is_affirmative (prop->value())){
2608 mute_point = mute_point + ",";
2611 mute_point = mute_point + "Listen";
2616 if ((prop = node.property (X_("mute-affects-main-outs"))) != 0) {
2618 if (string_is_affirmative (prop->value())){
2621 mute_point = mute_point + ",";
2624 mute_point = mute_point + "Main";
2628 _mute_master->set_mute_points (mute_point);
2629 _mute_master->set_muted_by_self (true);
2633 if ((prop = node.property (X_("meter-point"))) != 0) {
2634 _meter_point = MeterPoint (string_2_enum (prop->value (), _meter_point));
2637 /* do not carry over edit/mix groups from 2.X because (a) its hard (b) they
2638 don't mean the same thing.
2641 if ((prop = node.property (X_("order-keys"))) != 0) {
2645 string::size_type colon, equal;
2646 string remaining = prop->value();
2648 while (remaining.length()) {
2650 if ((equal = remaining.find_first_of ('=')) == string::npos || equal == remaining.length()) {
2651 error << string_compose (_("badly formed order key string in state file! [%1] ... ignored."), remaining)
2654 if (sscanf (remaining.substr (equal+1).c_str(), "%d", &n) != 1) {
2655 error << string_compose (_("badly formed order key string in state file! [%1] ... ignored."), remaining)
2658 string keyname = remaining.substr (0, equal);
2660 if (keyname == "EditorSort" || keyname == "editor") {
2661 info << string_compose(_("Converting deprecated order key for %1 using Editor order %2"), name (), n) << endmsg;
2667 colon = remaining.find_first_of (':');
2669 if (colon != string::npos) {
2670 remaining = remaining.substr (colon+1);
2679 nlist = node.children ();
2680 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
2684 if (child->name() == IO::state_node_name) {
2686 /* there is a note in IO::set_state_2X() about why we have to call
2690 _input->set_state_2X (*child, version, true);
2691 _output->set_state_2X (*child, version, false);
2693 if ((prop = child->property (X_("name"))) != 0) {
2694 Route::set_name (prop->value ());
2699 if ((prop = child->property (X_("active"))) != 0) {
2700 bool yn = string_is_affirmative (prop->value());
2701 _active = !yn; // force switch
2702 set_active (yn, this);
2705 if ((prop = child->property (X_("gain"))) != 0) {
2708 if (sscanf (prop->value().c_str(), "%f", &val) == 1) {
2709 _amp->gain_control()->set_value (val);
2713 /* Set up Panners in the IO */
2714 XMLNodeList io_nlist = child->children ();
2716 XMLNodeConstIterator io_niter;
2719 for (io_niter = io_nlist.begin(); io_niter != io_nlist.end(); ++io_niter) {
2721 io_child = *io_niter;
2723 if (io_child->name() == X_("Panner")) {
2724 _main_outs->panner_shell()->set_state(*io_child, version);
2725 } else if (io_child->name() == X_("Automation")) {
2726 /* IO's automation is for the fader */
2727 _amp->set_automation_xml_state (*io_child, Evoral::Parameter (GainAutomation));
2733 XMLNodeList redirect_nodes;
2735 for (niter = nlist.begin(); niter != nlist.end(); ++niter){
2739 if (child->name() == X_("Send") || child->name() == X_("Insert")) {
2740 redirect_nodes.push_back(child);
2745 set_processor_state_2X (redirect_nodes, version);
2747 Stateful::save_extra_xml (node);
2749 for (niter = nlist.begin(); niter != nlist.end(); ++niter){
2752 if (child->name() == X_("Comment")) {
2754 /* XXX this is a terrible API design in libxml++ */
2756 XMLNode *cmt = *(child->children().begin());
2757 _comment = cmt->content();
2759 } else if (child->name() == Controllable::xml_node_name && (prop = child->property("name")) != 0) {
2760 if (prop->value() == X_("solo")) {
2761 _solo_control->set_state (*child, version);
2762 } else if (prop->value() == X_("mute")) {
2763 _mute_control->set_state (*child, version);
2766 } else if (child->name() == X_("RemoteControl")) {
2767 if ((prop = child->property (X_("id"))) != 0) {
2769 sscanf (prop->value().c_str(), "%d", &x);
2770 set_remote_control_id_internal (x);
2780 Route::get_processor_state ()
2782 XMLNode* root = new XMLNode (X_("redirects"));
2783 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
2784 root->add_child_nocopy ((*i)->state (true));
2791 Route::set_processor_state_2X (XMLNodeList const & nList, int version)
2793 /* We don't bother removing existing processors not in nList, as this
2794 method will only be called when creating a Route from scratch, not
2795 for undo purposes. Just put processors in at the appropriate place
2799 for (XMLNodeConstIterator i = nList.begin(); i != nList.end(); ++i) {
2800 add_processor_from_xml_2X (**i, version);
2805 Route::set_processor_state (const XMLNode& node)
2807 const XMLNodeList &nlist = node.children();
2808 XMLNodeConstIterator niter;
2809 ProcessorList new_order;
2810 bool must_configure = false;
2812 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
2814 XMLProperty* prop = (*niter)->property ("type");
2816 if (prop->value() == "amp") {
2817 _amp->set_state (**niter, Stateful::current_state_version);
2818 new_order.push_back (_amp);
2819 } else if (prop->value() == "trim") {
2820 _trim->set_state (**niter, Stateful::current_state_version);
2821 new_order.push_back (_trim);
2822 } else if (prop->value() == "meter") {
2823 _meter->set_state (**niter, Stateful::current_state_version);
2824 new_order.push_back (_meter);
2825 } else if (prop->value() == "delay") {
2827 _delayline->set_state (**niter, Stateful::current_state_version);
2828 new_order.push_back (_delayline);
2830 } else if (prop->value() == "main-outs") {
2831 _main_outs->set_state (**niter, Stateful::current_state_version);
2832 } else if (prop->value() == "intreturn") {
2834 _intreturn.reset (new InternalReturn (_session));
2835 must_configure = true;
2837 _intreturn->set_state (**niter, Stateful::current_state_version);
2838 } else if (is_monitor() && prop->value() == "monitor") {
2839 if (!_monitor_control) {
2840 _monitor_control.reset (new MonitorProcessor (_session));
2841 must_configure = true;
2843 _monitor_control->set_state (**niter, Stateful::current_state_version);
2844 } else if (prop->value() == "capture") {
2845 /* CapturingProcessor should never be restored, it's always
2846 added explicitly when needed */
2848 ProcessorList::iterator o;
2850 for (o = _processors.begin(); o != _processors.end(); ++o) {
2851 XMLProperty* id_prop = (*niter)->property(X_("id"));
2852 if (id_prop && (*o)->id() == id_prop->value()) {
2853 (*o)->set_state (**niter, Stateful::current_state_version);
2854 new_order.push_back (*o);
2859 // If the processor (*niter) is not on the route then create it
2861 if (o == _processors.end()) {
2863 boost::shared_ptr<Processor> processor;
2865 if (prop->value() == "intsend") {
2867 processor.reset (new InternalSend (_session, _pannable, _mute_master, boost::dynamic_pointer_cast<ARDOUR::Route>(shared_from_this()), boost::shared_ptr<Route>(), Delivery::Aux, true));
2869 } else if (prop->value() == "ladspa" || prop->value() == "Ladspa" ||
2870 prop->value() == "lv2" ||
2871 prop->value() == "windows-vst" ||
2872 prop->value() == "lxvst" ||
2873 prop->value() == "audiounit") {
2875 if (_session.get_disable_all_loaded_plugins ()) {
2876 processor.reset (new UnknownProcessor (_session, **niter));
2878 processor.reset (new PluginInsert (_session));
2880 } else if (prop->value() == "port") {
2882 processor.reset (new PortInsert (_session, _pannable, _mute_master));
2884 } else if (prop->value() == "send") {
2886 processor.reset (new Send (_session, _pannable, _mute_master, Delivery::Send, true));
2889 error << string_compose(_("unknown Processor type \"%1\"; ignored"), prop->value()) << endmsg;
2893 if (processor->set_state (**niter, Stateful::current_state_version) != 0) {
2894 /* This processor could not be configured. Turn it into a UnknownProcessor */
2895 processor.reset (new UnknownProcessor (_session, **niter));
2898 /* we have to note the monitor send here, otherwise a new one will be created
2899 and the state of this one will be lost.
2901 boost::shared_ptr<InternalSend> isend = boost::dynamic_pointer_cast<InternalSend> (processor);
2902 if (isend && isend->role() == Delivery::Listen) {
2903 _monitor_send = isend;
2906 /* it doesn't matter if invisible processors are added here, as they
2907 will be sorted out by setup_invisible_processors () shortly.
2910 new_order.push_back (processor);
2911 must_configure = true;
2917 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
2918 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
2919 _processors = new_order;
2921 if (must_configure) {
2922 configure_processors_unlocked (0);
2925 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
2927 (*i)->set_owner (this);
2928 (*i)->ActiveChanged.connect_same_thread (*this, boost::bind (&Session::update_latency_compensation, &_session, false));
2930 boost::shared_ptr<PluginInsert> pi;
2932 if ((pi = boost::dynamic_pointer_cast<PluginInsert>(*i)) != 0) {
2933 if (pi->has_no_inputs ()) {
2934 _have_internal_generator = true;
2941 reset_instrument_info ();
2942 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
2943 set_processor_positions ();
2947 Route::curve_reallocate ()
2949 // _gain_automation_curve.finish_resize ();
2950 // _pan_automation_curve.finish_resize ();
2954 Route::silence (framecnt_t nframes)
2956 Glib::Threads::RWLock::ReaderLock lm (_processor_lock, Glib::Threads::TRY_LOCK);
2961 silence_unlocked (nframes);
2965 Route::silence_unlocked (framecnt_t nframes)
2967 /* Must be called with the processor lock held */
2971 _output->silence (nframes);
2973 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
2974 boost::shared_ptr<PluginInsert> pi;
2976 if (!_active && (pi = boost::dynamic_pointer_cast<PluginInsert> (*i)) != 0) {
2977 // skip plugins, they don't need anything when we're not active
2981 (*i)->silence (nframes);
2984 if (nframes == _session.get_block_size()) {
2991 Route::add_internal_return ()
2994 _intreturn.reset (new InternalReturn (_session));
2995 add_processor (_intreturn, PreFader);
3000 Route::add_send_to_internal_return (InternalSend* send)
3002 Glib::Threads::RWLock::ReaderLock rm (_processor_lock);
3004 for (ProcessorList::const_iterator x = _processors.begin(); x != _processors.end(); ++x) {
3005 boost::shared_ptr<InternalReturn> d = boost::dynamic_pointer_cast<InternalReturn>(*x);
3008 return d->add_send (send);
3014 Route::remove_send_from_internal_return (InternalSend* send)
3016 Glib::Threads::RWLock::ReaderLock rm (_processor_lock);
3018 for (ProcessorList::const_iterator x = _processors.begin(); x != _processors.end(); ++x) {
3019 boost::shared_ptr<InternalReturn> d = boost::dynamic_pointer_cast<InternalReturn>(*x);
3022 return d->remove_send (send);
3028 Route::enable_monitor_send ()
3030 /* Caller must hold process lock */
3031 assert (!AudioEngine::instance()->process_lock().trylock());
3033 /* master never sends to monitor section via the normal mechanism */
3034 assert (!is_master ());
3035 assert (!is_monitor ());
3037 /* make sure we have one */
3038 if (!_monitor_send) {
3039 _monitor_send.reset (new InternalSend (_session, _pannable, _mute_master, boost::dynamic_pointer_cast<ARDOUR::Route>(shared_from_this()), _session.monitor_out(), Delivery::Listen));
3040 _monitor_send->set_display_to_user (false);
3044 configure_processors (0);
3047 /** Add an aux send to a route.
3048 * @param route route to send to.
3049 * @param before Processor to insert before, or 0 to insert at the end.
3052 Route::add_aux_send (boost::shared_ptr<Route> route, boost::shared_ptr<Processor> before)
3054 assert (route != _session.monitor_out ());
3057 Glib::Threads::RWLock::ReaderLock rm (_processor_lock);
3059 for (ProcessorList::iterator x = _processors.begin(); x != _processors.end(); ++x) {
3061 boost::shared_ptr<InternalSend> d = boost::dynamic_pointer_cast<InternalSend> (*x);
3063 if (d && d->target_route() == route) {
3064 /* already listening via the specified IO: do nothing */
3072 boost::shared_ptr<InternalSend> listener;
3075 Glib::Threads::Mutex::Lock lm (AudioEngine::instance()->process_lock ());
3076 boost::shared_ptr<Pannable> sendpan (new Pannable (_session));
3077 listener.reset (new InternalSend (_session, sendpan, _mute_master, boost::dynamic_pointer_cast<ARDOUR::Route>(shared_from_this()), route, Delivery::Aux));
3080 add_processor (listener, before);
3082 } catch (failed_constructor& err) {
3090 Route::remove_aux_or_listen (boost::shared_ptr<Route> route)
3092 ProcessorStreams err;
3093 ProcessorList::iterator tmp;
3096 Glib::Threads::RWLock::ReaderLock rl(_processor_lock);
3098 /* have to do this early because otherwise processor reconfig
3099 * will put _monitor_send back in the list
3102 if (route == _session.monitor_out()) {
3103 _monitor_send.reset ();
3107 for (ProcessorList::iterator x = _processors.begin(); x != _processors.end(); ++x) {
3109 boost::shared_ptr<InternalSend> d = boost::dynamic_pointer_cast<InternalSend>(*x);
3111 if (d && d->target_route() == route) {
3113 if (remove_processor (*x, &err, false) > 0) {
3119 /* list could have been demolished while we dropped the lock
3122 if (_session.engine().connected()) {
3123 /* i/o processors cannot be removed if the engine is not running
3124 * so don't live-loop in case the engine is N/A or dies
3134 Route::set_comment (string cmt, void *src)
3137 comment_changed (src);
3138 _session.set_dirty ();
3142 Route::add_fed_by (boost::shared_ptr<Route> other, bool via_sends_only)
3144 FeedRecord fr (other, via_sends_only);
3146 pair<FedBy::iterator,bool> result = _fed_by.insert (fr);
3148 if (!result.second) {
3150 /* already a record for "other" - make sure sends-only information is correct */
3151 if (!via_sends_only && result.first->sends_only) {
3152 FeedRecord* frp = const_cast<FeedRecord*>(&(*result.first));
3153 frp->sends_only = false;
3157 return result.second;
3161 Route::clear_fed_by ()
3167 Route::feeds (boost::shared_ptr<Route> other, bool* via_sends_only)
3169 const FedBy& fed_by (other->fed_by());
3171 for (FedBy::const_iterator f = fed_by.begin(); f != fed_by.end(); ++f) {
3172 boost::shared_ptr<Route> sr = f->r.lock();
3174 if (sr && (sr.get() == this)) {
3176 if (via_sends_only) {
3177 *via_sends_only = f->sends_only;
3188 Route::direct_feeds_according_to_reality (boost::shared_ptr<Route> other, bool* via_send_only)
3190 DEBUG_TRACE (DEBUG::Graph, string_compose ("Feeds? %1\n", _name));
3192 if (_output->connected_to (other->input())) {
3193 DEBUG_TRACE (DEBUG::Graph, string_compose ("\tdirect FEEDS %2\n", other->name()));
3194 if (via_send_only) {
3195 *via_send_only = false;
3202 for (ProcessorList::iterator r = _processors.begin(); r != _processors.end(); ++r) {
3204 boost::shared_ptr<IOProcessor> iop;
3206 if ((iop = boost::dynamic_pointer_cast<IOProcessor>(*r)) != 0) {
3207 if (iop->feeds (other)) {
3208 DEBUG_TRACE (DEBUG::Graph, string_compose ("\tIOP %1 does feed %2\n", iop->name(), other->name()));
3209 if (via_send_only) {
3210 *via_send_only = true;
3214 DEBUG_TRACE (DEBUG::Graph, string_compose ("\tIOP %1 does NOT feed %2\n", iop->name(), other->name()));
3217 DEBUG_TRACE (DEBUG::Graph, string_compose ("\tPROC %1 is not an IOP\n", (*r)->name()));
3222 DEBUG_TRACE (DEBUG::Graph, string_compose ("\tdoes NOT feed %1\n", other->name()));
3227 Route::direct_feeds_according_to_graph (boost::shared_ptr<Route> other, bool* via_send_only)
3229 return _session._current_route_graph.has (shared_from_this (), other, via_send_only);
3232 /** Called from the (non-realtime) butler thread when the transport is stopped */
3234 Route::nonrealtime_handle_transport_stopped (bool /*abort_ignored*/, bool /*did_locate*/, bool can_flush_processors)
3236 framepos_t now = _session.transport_frame();
3239 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
3241 Automatable::transport_stopped (now);
3243 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
3245 if (!_have_internal_generator && (Config->get_plugins_stop_with_transport() && can_flush_processors)) {
3249 (*i)->transport_stopped (now);
3253 _roll_delay = _initial_delay;
3257 Route::input_change_handler (IOChange change, void * /*src*/)
3259 bool need_to_queue_solo_change = true;
3261 if ((change.type & IOChange::ConfigurationChanged)) {
3262 /* This is called with the process lock held if change
3263 contains ConfigurationChanged
3265 need_to_queue_solo_change = false;
3266 configure_processors (0);
3267 _phase_invert.resize (_input->n_ports().n_audio ());
3268 io_changed (); /* EMIT SIGNAL */
3271 if (!_input->connected() && _soloed_by_others_upstream) {
3272 if (need_to_queue_solo_change) {
3273 _session.cancel_solo_after_disconnect (shared_from_this(), true);
3275 cancel_solo_after_disconnect (true);
3281 Route::output_change_handler (IOChange change, void * /*src*/)
3283 bool need_to_queue_solo_change = true;
3284 if (_initial_io_setup) {
3288 if ((change.type & IOChange::ConfigurationChanged)) {
3289 /* This is called with the process lock held if change
3290 contains ConfigurationChanged
3292 need_to_queue_solo_change = false;
3293 configure_processors (0);
3296 _session.reset_monitor_section();
3299 io_changed (); /* EMIT SIGNAL */
3302 if (!_output->connected() && _soloed_by_others_downstream) {
3303 if (need_to_queue_solo_change) {
3304 _session.cancel_solo_after_disconnect (shared_from_this(), false);
3306 cancel_solo_after_disconnect (false);
3312 Route::cancel_solo_after_disconnect (bool upstream)
3315 _soloed_by_others_upstream = 0;
3317 _soloed_by_others_downstream = 0;
3319 set_mute_master_solo ();
3320 solo_changed (false, this);
3324 Route::pans_required () const
3326 if (n_outputs().n_audio() < 2) {
3330 return max (n_inputs ().n_audio(), processor_max_streams.n_audio());
3334 Route::no_roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame, bool session_state_changing)
3336 Glib::Threads::RWLock::ReaderLock lm (_processor_lock, Glib::Threads::TRY_LOCK);
3342 if (n_outputs().n_total() == 0) {
3346 if (!_active || n_inputs() == ChanCount::ZERO) {
3347 silence_unlocked (nframes);
3351 if (session_state_changing) {
3352 if (_session.transport_speed() != 0.0f) {
3353 /* we're rolling but some state is changing (e.g. our diskstream contents)
3354 so we cannot use them. Be silent till this is over.
3356 XXX note the absurdity of ::no_roll() being called when we ARE rolling!
3358 silence_unlocked (nframes);
3361 /* we're really not rolling, so we're either delivery silence or actually
3362 monitoring, both of which are safe to do while session_state_changing is true.
3366 BufferSet& bufs = _session.get_route_buffers (n_process_buffers());
3368 fill_buffers_with_input (bufs, _input, nframes);
3370 if (_meter_point == MeterInput) {
3371 _meter->run (bufs, start_frame, end_frame, nframes, true);
3374 _amp->apply_gain_automation (false);
3375 _trim->apply_gain_automation (false);
3376 passthru (bufs, start_frame, end_frame, nframes, 0);
3382 Route::roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame, int declick, bool& /* need_butler */)
3384 Glib::Threads::RWLock::ReaderLock lm (_processor_lock, Glib::Threads::TRY_LOCK);
3389 if (n_outputs().n_total() == 0) {
3393 if (!_active || n_inputs().n_total() == 0) {
3394 silence_unlocked (nframes);
3398 framepos_t unused = 0;
3400 if ((nframes = check_initial_delay (nframes, unused)) == 0) {
3406 BufferSet& bufs = _session.get_route_buffers (n_process_buffers());
3408 fill_buffers_with_input (bufs, _input, nframes);
3410 if (_meter_point == MeterInput) {
3411 _meter->run (bufs, start_frame, end_frame, nframes, true);
3414 passthru (bufs, start_frame, end_frame, nframes, declick);
3420 Route::silent_roll (pframes_t nframes, framepos_t /*start_frame*/, framepos_t /*end_frame*/, bool& /* need_butler */)
3427 Route::flush_processors ()
3429 /* XXX shouldn't really try to take this lock, since
3430 this is called from the RT audio thread.
3433 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
3435 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
3441 __attribute__((annotate("realtime")))
3444 Route::apply_processor_changes_rt ()
3446 int emissions = EmitNone;
3448 if (_pending_meter_point != _meter_point) {
3449 Glib::Threads::RWLock::WriterLock pwl (_processor_lock, Glib::Threads::TRY_LOCK);
3451 /* meters always have buffers for 'processor_max_streams'
3452 * they can be re-positioned without re-allocation */
3453 if (set_meter_point_unlocked()) {
3454 emissions |= EmitMeterChanged | EmitMeterVisibilityChange;;
3456 emissions |= EmitMeterChanged;
3461 bool changed = false;
3463 if (g_atomic_int_get (&_pending_process_reorder)) {
3464 Glib::Threads::RWLock::WriterLock pwl (_processor_lock, Glib::Threads::TRY_LOCK);
3466 apply_processor_order (_pending_processor_order);
3467 setup_invisible_processors ();
3469 g_atomic_int_set (&_pending_process_reorder, 0);
3470 emissions |= EmitRtProcessorChange;
3474 set_processor_positions ();
3476 if (emissions != 0) {
3477 g_atomic_int_set (&_pending_signals, emissions);
3484 Route::emit_pending_signals ()
3487 int sig = g_atomic_int_and (&_pending_signals, 0);
3488 if (sig & EmitMeterChanged) {
3489 _meter->emit_configuration_changed();
3490 meter_change (); /* EMIT SIGNAL */
3491 if (sig & EmitMeterVisibilityChange) {
3492 processors_changed (RouteProcessorChange (RouteProcessorChange::MeterPointChange, true)); /* EMIT SIGNAL */
3494 processors_changed (RouteProcessorChange (RouteProcessorChange::MeterPointChange, false)); /* EMIT SIGNAL */
3497 if (sig & EmitRtProcessorChange) {
3498 processors_changed (RouteProcessorChange (RouteProcessorChange::RealTimeChange)); /* EMIT SIGNAL */
3503 Route::set_meter_point (MeterPoint p, bool force)
3505 if (_pending_meter_point == p && !force) {
3509 if (force || !AudioEngine::instance()->running()) {
3510 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
3511 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
3512 _pending_meter_point = p;
3513 _meter->emit_configuration_changed();
3514 meter_change (); /* EMIT SIGNAL */
3515 if (set_meter_point_unlocked()) {
3516 processors_changed (RouteProcessorChange (RouteProcessorChange::MeterPointChange, true)); /* EMIT SIGNAL */
3518 processors_changed (RouteProcessorChange (RouteProcessorChange::MeterPointChange, false)); /* EMIT SIGNAL */
3521 _pending_meter_point = p;
3527 __attribute__((annotate("realtime")))
3530 Route::set_meter_point_unlocked ()
3533 /* Caller must hold process and processor write lock */
3534 assert (!AudioEngine::instance()->process_lock().trylock());
3535 Glib::Threads::RWLock::WriterLock lm (_processor_lock, Glib::Threads::TRY_LOCK);
3536 assert (!lm.locked ());
3539 _meter_point = _pending_meter_point;
3541 bool meter_was_visible_to_user = _meter->display_to_user ();
3543 if (!_custom_meter_position_noted) {
3544 maybe_note_meter_position ();
3547 if (_meter_point != MeterCustom) {
3549 _meter->set_display_to_user (false);
3551 setup_invisible_processors ();
3554 _meter->set_display_to_user (true);
3556 /* If we have a previous position for the custom meter, try to put it there */
3557 boost::shared_ptr<Processor> after = _processor_after_last_custom_meter.lock ();
3559 ProcessorList::iterator i = find (_processors.begin(), _processors.end(), after);
3560 if (i != _processors.end ()) {
3561 _processors.remove (_meter);
3562 _processors.insert (i, _meter);
3564 } else {// at end, right before the mains_out/panner
3565 _processors.remove (_meter);
3566 ProcessorList::iterator main = _processors.end();
3567 _processors.insert (--main, _meter);
3571 /* Set up the meter for its new position */
3573 ProcessorList::iterator loc = find (_processors.begin(), _processors.end(), _meter);
3577 if (loc == _processors.begin()) {
3578 m_in = _input->n_ports();
3580 ProcessorList::iterator before = loc;
3582 m_in = (*before)->output_streams ();
3585 _meter->reflect_inputs (m_in);
3587 /* we do not need to reconfigure the processors, because the meter
3588 (a) is always ready to handle processor_max_streams
3589 (b) is always an N-in/N-out processor, and thus moving
3590 it doesn't require any changes to the other processors.
3593 /* these should really be done after releasing the lock
3594 * but all those signals are subscribed to with gui_thread()
3597 return (_meter->display_to_user() != meter_was_visible_to_user);
3601 Route::listen_position_changed ()
3604 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
3605 Glib::Threads::RWLock::WriterLock lm (_processor_lock);
3606 ProcessorState pstate (this);
3608 if (configure_processors_unlocked (0)) {
3610 configure_processors_unlocked (0); // it worked before we tried to add it ...
3615 processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
3616 _session.set_dirty ();
3619 boost::shared_ptr<CapturingProcessor>
3620 Route::add_export_point()
3622 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
3623 if (!_capturing_processor) {
3625 Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
3626 Glib::Threads::RWLock::WriterLock lw (_processor_lock);
3628 _capturing_processor.reset (new CapturingProcessor (_session));
3629 _capturing_processor->activate ();
3631 configure_processors_unlocked (0);
3635 return _capturing_processor;
3639 Route::update_signal_latency ()
3641 framecnt_t l = _output->user_latency();
3642 framecnt_t lamp = 0;
3643 bool before_amp = true;
3644 framecnt_t ltrim = 0;
3645 bool before_trim = true;
3647 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
3648 if ((*i)->active ()) {
3649 l += (*i)->signal_latency ();
3654 if ((*i) == _trim) {
3665 DEBUG_TRACE (DEBUG::Latency, string_compose ("%1: internal signal latency = %2\n", _name, l));
3667 // TODO: (lamp - _signal_latency) to sync to output (read-ahed), currently _roll_delay shifts this around
3668 _signal_latency_at_amp_position = lamp;
3669 _signal_latency_at_trim_position = ltrim;
3671 if (_signal_latency != l) {
3672 _signal_latency = l;
3673 signal_latency_changed (); /* EMIT SIGNAL */
3676 return _signal_latency;
3680 Route::set_user_latency (framecnt_t nframes)
3682 _output->set_user_latency (nframes);
3683 _session.update_latency_compensation ();
3687 Route::set_latency_compensation (framecnt_t longest_session_latency)
3689 framecnt_t old = _initial_delay;
3691 if (_signal_latency < longest_session_latency) {
3692 _initial_delay = longest_session_latency - _signal_latency;
3697 DEBUG_TRACE (DEBUG::Latency, string_compose (
3698 "%1: compensate for maximum latency of %2,"
3699 "given own latency of %3, using initial delay of %4\n",
3700 name(), longest_session_latency, _signal_latency, _initial_delay));
3702 if (_initial_delay != old) {
3703 initial_delay_changed (); /* EMIT SIGNAL */
3706 if (_session.transport_stopped()) {
3707 _roll_delay = _initial_delay;
3711 Route::SoloControllable::SoloControllable (std::string name, boost::shared_ptr<Route> r)
3712 : AutomationControl (r->session(),
3713 Evoral::Parameter (SoloAutomation),
3714 ParameterDescriptor(Evoral::Parameter (SoloAutomation)),
3715 boost::shared_ptr<AutomationList>(), name)
3718 boost::shared_ptr<AutomationList> gl(new AutomationList(Evoral::Parameter(SoloAutomation)));
3719 gl->set_interpolation(Evoral::ControlList::Discrete);
3724 Route::SoloControllable::set_value (double val)
3726 const bool bval = ((val >= 0.5) ? true : false);
3728 boost::shared_ptr<RouteList> rl (new RouteList);
3730 boost::shared_ptr<Route> r = _route.lock ();
3737 if (Config->get_solo_control_is_listen_control()) {
3738 _session.set_listen (rl, bval);
3740 _session.set_solo (rl, bval);
3745 Route::SoloControllable::get_value () const
3747 boost::shared_ptr<Route> r = _route.lock ();
3752 if (Config->get_solo_control_is_listen_control()) {
3753 return r->listening_via_monitor() ? GAIN_COEFF_UNITY : GAIN_COEFF_ZERO;
3755 return r->self_soloed() ? GAIN_COEFF_UNITY : GAIN_COEFF_ZERO;
3759 Route::MuteControllable::MuteControllable (std::string name, boost::shared_ptr<Route> r)
3760 : AutomationControl (r->session(),
3761 Evoral::Parameter (MuteAutomation),
3762 ParameterDescriptor (Evoral::Parameter (MuteAutomation)),
3763 boost::shared_ptr<AutomationList>(),
3767 boost::shared_ptr<AutomationList> gl(new AutomationList(Evoral::Parameter(MuteAutomation)));
3768 gl->set_interpolation(Evoral::ControlList::Discrete);
3773 Route::MuteControllable::set_superficial_value(bool muted)
3775 /* Note we can not use AutomationControl::set_value here since it will emit
3776 Changed(), but the value will not be correct to the observer. */
3778 bool to_list = _list && ((AutomationList*)_list.get())->automation_write();
3780 Control::set_double (muted, _session.transport_frame(), to_list);
3784 Route::MuteControllable::set_value (double val)
3786 const bool bval = ((val >= 0.5) ? true : false);
3788 boost::shared_ptr<Route> r = _route.lock ();
3793 if (_list && ((AutomationList*)_list.get())->automation_playback()) {
3794 // Playing back automation, set route mute directly
3795 r->set_mute (bval, this);
3797 // Set from user, queue mute event
3798 boost::shared_ptr<RouteList> rl (new RouteList);
3800 _session.set_mute (rl, bval, Session::rt_cleanup);
3803 // Set superficial/automation value to drive controller (and possibly record)
3804 set_superficial_value(bval);
3808 Route::MuteControllable::get_value () const
3810 if (_list && ((AutomationList*)_list.get())->automation_playback()) {
3811 // Playing back automation, get the value from the list
3812 return AutomationControl::get_value();
3815 // Not playing back automation, get the actual route mute value
3816 boost::shared_ptr<Route> r = _route.lock ();
3817 return (r && r->muted()) ? GAIN_COEFF_UNITY : GAIN_COEFF_ZERO;
3821 Route::set_block_size (pframes_t nframes)
3823 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
3824 (*i)->set_block_size (nframes);
3827 _session.ensure_buffers (n_process_buffers ());
3831 Route::protect_automation ()
3833 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i)
3834 (*i)->protect_automation();
3837 /** @param declick 1 to set a pending declick fade-in,
3838 * -1 to set a pending declick fade-out
3841 Route::set_pending_declick (int declick)
3844 /* this call is not allowed to turn off a pending declick */
3846 _pending_declick = declick;
3849 _pending_declick = 0;
3853 /** Shift automation forwards from a particular place, thereby inserting time.
3854 * Adds undo commands for any shifts that are performed.
3856 * @param pos Position to start shifting from.
3857 * @param frames Amount to shift forwards by.
3861 Route::shift (framepos_t pos, framecnt_t frames)
3863 /* gain automation */
3865 boost::shared_ptr<AutomationControl> gc = _amp->gain_control();
3867 XMLNode &before = gc->alist()->get_state ();
3868 gc->alist()->shift (pos, frames);
3869 XMLNode &after = gc->alist()->get_state ();
3870 _session.add_command (new MementoCommand<AutomationList> (*gc->alist().get(), &before, &after));
3873 /* gain automation */
3875 boost::shared_ptr<AutomationControl> gc = _trim->gain_control();
3877 XMLNode &before = gc->alist()->get_state ();
3878 gc->alist()->shift (pos, frames);
3879 XMLNode &after = gc->alist()->get_state ();
3880 _session.add_command (new MementoCommand<AutomationList> (*gc->alist().get(), &before, &after));
3883 // TODO mute automation ??
3885 /* pan automation */
3887 ControlSet::Controls& c (_pannable->controls());
3889 for (ControlSet::Controls::const_iterator ci = c.begin(); ci != c.end(); ++ci) {
3890 boost::shared_ptr<AutomationControl> pc = boost::dynamic_pointer_cast<AutomationControl> (ci->second);
3892 boost::shared_ptr<AutomationList> al = pc->alist();
3893 XMLNode& before = al->get_state ();
3894 al->shift (pos, frames);
3895 XMLNode& after = al->get_state ();
3896 _session.add_command (new MementoCommand<AutomationList> (*al.get(), &before, &after));
3901 /* redirect automation */
3903 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
3904 for (ProcessorList::iterator i = _processors.begin (); i != _processors.end (); ++i) {
3906 set<Evoral::Parameter> parameters = (*i)->what_can_be_automated();
3908 for (set<Evoral::Parameter>::const_iterator p = parameters.begin (); p != parameters.end (); ++p) {
3909 boost::shared_ptr<AutomationControl> ac = (*i)->automation_control (*p);
3911 boost::shared_ptr<AutomationList> al = ac->alist();
3912 XMLNode &before = al->get_state ();
3913 al->shift (pos, frames);
3914 XMLNode &after = al->get_state ();
3915 _session.add_command (new MementoCommand<AutomationList> (*al.get(), &before, &after));
3924 Route::save_as_template (const string& path, const string& name)
3926 XMLNode& node (state (false));
3929 IO::set_name_in_state (*node.children().front(), name);
3931 tree.set_root (&node);
3932 return tree.write (path.c_str());
3937 Route::set_name (const string& str)
3939 if (str == name()) {
3943 string name = Route::ensure_track_or_route_name (str, _session);
3944 SessionObject::set_name (name);
3946 bool ret = (_input->set_name(name) && _output->set_name(name));
3949 /* rename the main outs. Leave other IO processors
3950 * with whatever name they already have, because its
3951 * just fine as it is (it will not contain the route
3952 * name if its a port insert, port send or port return).
3956 if (_main_outs->set_name (name)) {
3957 /* XXX returning false here is stupid because
3958 we already changed the route name.
3968 /** Set the name of a route in an XML description.
3969 * @param node XML <Route> node to set the name in.
3970 * @param name New name.
3973 Route::set_name_in_state (XMLNode& node, string const & name)
3975 node.add_property (X_("name"), name);
3977 XMLNodeList children = node.children();
3978 for (XMLNodeIterator i = children.begin(); i != children.end(); ++i) {
3980 if ((*i)->name() == X_("IO")) {
3982 IO::set_name_in_state (**i, name);
3984 } else if ((*i)->name() == X_("Processor")) {
3986 XMLProperty* role = (*i)->property (X_("role"));
3987 if (role && role->value() == X_("Main")) {
3988 (*i)->add_property (X_("name"), name);
3991 } else if ((*i)->name() == X_("Diskstream")) {
3993 (*i)->add_property (X_("playlist"), string_compose ("%1.1", name).c_str());
3994 (*i)->add_property (X_("name"), name);
4000 boost::shared_ptr<Send>
4001 Route::internal_send_for (boost::shared_ptr<const Route> target) const
4003 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4005 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
4006 boost::shared_ptr<InternalSend> send;
4008 if ((send = boost::dynamic_pointer_cast<InternalSend>(*i)) != 0) {
4009 if (send->target_route() == target) {
4015 return boost::shared_ptr<Send>();
4018 /** @param c Audio channel index.
4019 * @param yn true to invert phase, otherwise false.
4022 Route::set_phase_invert (uint32_t c, bool yn)
4024 if (_phase_invert[c] != yn) {
4025 _phase_invert[c] = yn;
4026 phase_invert_changed (); /* EMIT SIGNAL */
4027 _session.set_dirty ();
4032 Route::set_phase_invert (boost::dynamic_bitset<> p)
4034 if (_phase_invert != p) {
4036 phase_invert_changed (); /* EMIT SIGNAL */
4037 _session.set_dirty ();
4042 Route::phase_invert (uint32_t c) const
4044 return _phase_invert[c];
4047 boost::dynamic_bitset<>
4048 Route::phase_invert () const
4050 return _phase_invert;
4054 Route::set_denormal_protection (bool yn)
4056 if (_denormal_protection != yn) {
4057 _denormal_protection = yn;
4058 denormal_protection_changed (); /* EMIT SIGNAL */
4063 Route::denormal_protection () const
4065 return _denormal_protection;
4069 Route::set_active (bool yn, void* src)
4071 if (_session.transport_rolling()) {
4075 if (_route_group && src != _route_group && _route_group->is_active() && _route_group->is_route_active()) {
4076 _route_group->foreach_route (boost::bind (&Route::set_active, _1, yn, _route_group));
4080 if (_active != yn) {
4082 _input->set_active (yn);
4083 _output->set_active (yn);
4084 active_changed (); // EMIT SIGNAL
4085 _session.set_dirty ();
4089 boost::shared_ptr<Pannable>
4090 Route::pannable() const
4095 boost::shared_ptr<Panner>
4096 Route::panner() const
4099 return _main_outs->panner_shell()->panner();
4102 boost::shared_ptr<PannerShell>
4103 Route::panner_shell() const
4105 return _main_outs->panner_shell();
4108 boost::shared_ptr<AutomationControl>
4109 Route::gain_control() const
4111 return _amp->gain_control();
4114 boost::shared_ptr<AutomationControl>
4115 Route::get_control (const Evoral::Parameter& param)
4117 /* either we own the control or .... */
4119 boost::shared_ptr<AutomationControl> c = boost::dynamic_pointer_cast<AutomationControl>(control (param));
4123 /* maybe one of our processors does or ... */
4125 Glib::Threads::RWLock::ReaderLock rm (_processor_lock);
4126 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4127 if ((c = boost::dynamic_pointer_cast<AutomationControl>((*i)->control (param))) != 0) {
4135 /* nobody does so we'll make a new one */
4137 c = boost::dynamic_pointer_cast<AutomationControl>(control_factory(param));
4144 boost::shared_ptr<Processor>
4145 Route::nth_plugin (uint32_t n)
4147 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4148 ProcessorList::iterator i;
4150 for (i = _processors.begin(); i != _processors.end(); ++i) {
4151 if (boost::dynamic_pointer_cast<PluginInsert> (*i)) {
4158 return boost::shared_ptr<Processor> ();
4161 boost::shared_ptr<Processor>
4162 Route::nth_send (uint32_t n)
4164 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4165 ProcessorList::iterator i;
4167 for (i = _processors.begin(); i != _processors.end(); ++i) {
4168 if (boost::dynamic_pointer_cast<Send> (*i)) {
4175 return boost::shared_ptr<Processor> ();
4179 Route::has_io_processor_named (const string& name)
4181 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4182 ProcessorList::iterator i;
4184 for (i = _processors.begin(); i != _processors.end(); ++i) {
4185 if (boost::dynamic_pointer_cast<Send> (*i) ||
4186 boost::dynamic_pointer_cast<PortInsert> (*i)) {
4187 if ((*i)->name() == name) {
4196 MuteMaster::MutePoint
4197 Route::mute_points () const
4199 return _mute_master->mute_points ();
4203 Route::set_processor_positions ()
4205 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4207 bool had_amp = false;
4208 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
4209 (*i)->set_pre_fader (!had_amp);
4216 /** Called when there is a proposed change to the input port count */
4218 Route::input_port_count_changing (ChanCount to)
4220 list<pair<ChanCount, ChanCount> > c = try_configure_processors (to, 0);
4222 /* The processors cannot be configured with the new input arrangement, so
4228 /* The change is ok */
4232 /** Called when there is a proposed change to the output port count */
4234 Route::output_port_count_changing (ChanCount to)
4236 for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
4237 if (processor_out_streams.get(*t) > to.get(*t)) {
4241 /* The change is ok */
4246 Route::unknown_processors () const
4250 if (_session.get_disable_all_loaded_plugins ()) {
4251 // Do not list "missing plugins" if they are explicitly disabled
4255 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4256 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
4257 if (boost::dynamic_pointer_cast<UnknownProcessor const> (*i)) {
4258 p.push_back ((*i)->name ());
4267 Route::update_port_latencies (PortSet& from, PortSet& to, bool playback, framecnt_t our_latency) const
4269 /* we assume that all our input ports feed all our output ports. its not
4270 universally true, but the alternative is way too corner-case to worry about.
4273 LatencyRange all_connections;
4276 all_connections.min = 0;
4277 all_connections.max = 0;
4279 all_connections.min = ~((pframes_t) 0);
4280 all_connections.max = 0;
4282 /* iterate over all "from" ports and determine the latency range for all of their
4283 connections to the "outside" (outside of this Route).
4286 for (PortSet::iterator p = from.begin(); p != from.end(); ++p) {
4290 p->get_connected_latency_range (range, playback);
4292 all_connections.min = min (all_connections.min, range.min);
4293 all_connections.max = max (all_connections.max, range.max);
4297 /* set the "from" port latencies to the max/min range of all their connections */
4299 for (PortSet::iterator p = from.begin(); p != from.end(); ++p) {
4300 p->set_private_latency_range (all_connections, playback);
4303 /* set the ports "in the direction of the flow" to the same value as above plus our own signal latency */
4305 all_connections.min += our_latency;
4306 all_connections.max += our_latency;
4308 for (PortSet::iterator p = to.begin(); p != to.end(); ++p) {
4309 p->set_private_latency_range (all_connections, playback);
4312 return all_connections.max;
4316 Route::set_private_port_latencies (bool playback) const
4318 framecnt_t own_latency = 0;
4320 /* Processor list not protected by lock: MUST BE CALLED FROM PROCESS THREAD
4321 OR LATENCY CALLBACK.
4323 This is called (early) from the latency callback. It computes the REAL
4324 latency associated with each port and stores the result as the "private"
4325 latency of the port. A later call to Route::set_public_port_latencies()
4326 sets all ports to the same value to reflect the fact that we do latency
4327 compensation and so all signals are delayed by the same amount as they
4328 flow through ardour.
4331 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
4332 if ((*i)->active ()) {
4333 own_latency += (*i)->signal_latency ();
4338 /* playback: propagate latency from "outside the route" to outputs to inputs */
4339 return update_port_latencies (_output->ports (), _input->ports (), true, own_latency);
4341 /* capture: propagate latency from "outside the route" to inputs to outputs */
4342 return update_port_latencies (_input->ports (), _output->ports (), false, own_latency);
4347 Route::set_public_port_latencies (framecnt_t value, bool playback) const
4349 /* this is called to set the JACK-visible port latencies, which take
4350 latency compensation into account.
4359 const PortSet& ports (_input->ports());
4360 for (PortSet::const_iterator p = ports.begin(); p != ports.end(); ++p) {
4361 p->set_public_latency_range (range, playback);
4366 const PortSet& ports (_output->ports());
4367 for (PortSet::const_iterator p = ports.begin(); p != ports.end(); ++p) {
4368 p->set_public_latency_range (range, playback);
4373 /** Put the invisible processors in the right place in _processors.
4374 * Must be called with a writer lock on _processor_lock held.
4377 __attribute__((annotate("realtime")))
4380 Route::setup_invisible_processors ()
4383 Glib::Threads::RWLock::WriterLock lm (_processor_lock, Glib::Threads::TRY_LOCK);
4384 assert (!lm.locked ());
4388 /* too early to be doing this stuff */
4392 /* we'll build this new list here and then use it
4394 * TODO put the ProcessorList is on the stack for RT-safety.
4397 ProcessorList new_processors;
4399 /* find visible processors */
4401 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4402 if ((*i)->display_to_user ()) {
4403 new_processors.push_back (*i);
4409 ProcessorList::iterator amp = new_processors.begin ();
4410 while (amp != new_processors.end() && *amp != _amp) {
4414 assert (amp != new_processors.end ());
4416 /* and the processor after the amp */
4418 ProcessorList::iterator after_amp = amp;
4424 switch (_meter_point) {
4426 assert (!_meter->display_to_user ());
4427 new_processors.push_front (_meter);
4430 assert (!_meter->display_to_user ());
4431 new_processors.insert (amp, _meter);
4433 case MeterPostFader:
4434 /* do nothing here */
4437 /* do nothing here */
4440 /* the meter is visible, so we don't touch it here */
4447 assert (_main_outs);
4448 assert (!_main_outs->display_to_user ());
4449 new_processors.push_back (_main_outs);
4451 /* iterator for the main outs */
4453 ProcessorList::iterator main = new_processors.end();
4456 /* OUTPUT METERING */
4458 if (_meter && (_meter_point == MeterOutput || _meter_point == MeterPostFader)) {
4459 assert (!_meter->display_to_user ());
4461 /* add the processor just before or just after the main outs */
4463 ProcessorList::iterator meter_point = main;
4465 if (_meter_point == MeterOutput) {
4468 new_processors.insert (meter_point, _meter);
4473 if (_monitor_send && !is_monitor ()) {
4474 assert (!_monitor_send->display_to_user ());
4475 if (Config->get_solo_control_is_listen_control()) {
4476 switch (Config->get_listen_position ()) {
4477 case PreFaderListen:
4478 switch (Config->get_pfl_position ()) {
4479 case PFLFromBeforeProcessors:
4480 new_processors.push_front (_monitor_send);
4482 case PFLFromAfterProcessors:
4483 new_processors.insert (amp, _monitor_send);
4486 _monitor_send->set_can_pan (false);
4488 case AfterFaderListen:
4489 switch (Config->get_afl_position ()) {
4490 case AFLFromBeforeProcessors:
4491 new_processors.insert (after_amp, _monitor_send);
4493 case AFLFromAfterProcessors:
4494 new_processors.insert (new_processors.end(), _monitor_send);
4497 _monitor_send->set_can_pan (true);
4501 new_processors.insert (new_processors.end(), _monitor_send);
4502 _monitor_send->set_can_pan (false);
4506 #if 0 // not used - just yet
4507 if (!is_master() && !is_monitor() && !is_auditioner()) {
4508 new_processors.push_front (_delayline);
4512 /* MONITOR CONTROL */
4514 if (_monitor_control && is_monitor ()) {
4515 assert (!_monitor_control->display_to_user ());
4516 new_processors.push_front (_monitor_control);
4519 /* INTERNAL RETURN */
4521 /* doing this here means that any monitor control will come just after
4526 assert (!_intreturn->display_to_user ());
4527 new_processors.push_front (_intreturn);
4530 if (_trim && _trim->active()) {
4531 assert (!_trim->display_to_user ());
4532 new_processors.push_front (_trim);
4534 /* EXPORT PROCESSOR */
4536 if (_capturing_processor) {
4537 assert (!_capturing_processor->display_to_user ());
4538 new_processors.push_front (_capturing_processor);
4541 _processors = new_processors;
4543 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4544 if (!(*i)->display_to_user () && !(*i)->active () && (*i) != _monitor_send) {
4549 DEBUG_TRACE (DEBUG::Processors, string_compose ("%1: setup_invisible_processors\n", _name));
4550 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4551 DEBUG_TRACE (DEBUG::Processors, string_compose ("\t%1\n", (*i)->name ()));
4558 Glib::Threads::Mutex::Lock lm (AudioEngine::instance()->process_lock ());
4559 Glib::Threads::RWLock::ReaderLock lp (_processor_lock);
4563 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4564 boost::shared_ptr<Delivery> d = boost::dynamic_pointer_cast<Delivery>(*i);
4571 /** If the meter point is `Custom', make a note of where the meter is.
4572 * This is so that if the meter point is subsequently set to something else,
4573 * and then back to custom, we can put the meter back where it was last time
4574 * custom was enabled.
4576 * Must be called with the _processor_lock held.
4579 Route::maybe_note_meter_position ()
4581 if (_meter_point != MeterCustom) {
4585 _custom_meter_position_noted = true;
4586 /* custom meter points range from after trim to before panner/main_outs
4587 * this is a limitation by the current processor UI
4589 bool seen_trim = false;
4590 _processor_after_last_custom_meter.reset();
4591 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4592 if ((*i) == _trim) {
4595 if ((*i) == _main_outs) {
4596 _processor_after_last_custom_meter = *i;
4599 if (boost::dynamic_pointer_cast<PeakMeter> (*i)) {
4601 _processor_after_last_custom_meter = _trim;
4603 ProcessorList::iterator j = i;
4605 assert(j != _processors.end ()); // main_outs should be before
4606 _processor_after_last_custom_meter = *j;
4611 assert(_processor_after_last_custom_meter.lock());
4614 boost::shared_ptr<Processor>
4615 Route::processor_by_id (PBD::ID id) const
4617 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4618 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
4619 if ((*i)->id() == id) {
4624 return boost::shared_ptr<Processor> ();
4627 /** @return the monitoring state, or in other words what data we are pushing
4628 * into the route (data from the inputs, data from disk or silence)
4631 Route::monitoring_state () const
4633 return MonitoringInput;
4636 /** @return what we should be metering; either the data coming from the input
4637 * IO or the data that is flowing through the route.
4640 Route::metering_state () const
4642 return MeteringRoute;
4646 Route::has_external_redirects () const
4648 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
4650 /* ignore inactive processors and obviously ignore the main
4651 * outs since everything has them and we don't care.
4654 if ((*i)->active() && (*i) != _main_outs && (*i)->does_routing()) {
4662 boost::shared_ptr<Processor>
4663 Route::the_instrument () const
4665 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4666 return the_instrument_unlocked ();
4669 boost::shared_ptr<Processor>
4670 Route::the_instrument_unlocked () const
4672 for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
4673 if (boost::dynamic_pointer_cast<PluginInsert>(*i)) {
4674 if ((*i)->input_streams().n_midi() > 0 &&
4675 (*i)->output_streams().n_audio() > 0) {
4680 return boost::shared_ptr<Processor>();
4686 Route::non_realtime_locate (framepos_t pos)
4689 _pannable->transport_located (pos);
4692 if (_delayline.get()) {
4693 _delayline.get()->flush();
4697 //Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
4698 Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
4700 for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
4701 (*i)->transport_located (pos);
4704 _roll_delay = _initial_delay;
4708 Route::fill_buffers_with_input (BufferSet& bufs, boost::shared_ptr<IO> io, pframes_t nframes)
4715 * We don't currently mix MIDI input together, so we don't need the
4716 * complex logic of the audio case.
4719 n_buffers = bufs.count().n_midi ();
4721 for (i = 0; i < n_buffers; ++i) {
4723 boost::shared_ptr<MidiPort> source_port = io->midi (i);
4724 MidiBuffer& buf (bufs.get_midi (i));
4727 buf.copy (source_port->get_midi_buffer(nframes));
4729 buf.silence (nframes);
4735 n_buffers = bufs.count().n_audio();
4737 size_t n_ports = io->n_ports().n_audio();
4738 float scaling = 1.0f;
4740 if (n_ports > n_buffers) {
4741 scaling = ((float) n_buffers) / n_ports;
4744 for (i = 0; i < n_ports; ++i) {
4746 /* if there are more ports than buffers, map them onto buffers
4747 * in a round-robin fashion
4750 boost::shared_ptr<AudioPort> source_port = io->audio (i);
4751 AudioBuffer& buf (bufs.get_audio (i%n_buffers));
4754 if (i < n_buffers) {
4756 /* first time through just copy a channel into
4760 buf.read_from (source_port->get_audio_buffer (nframes), nframes);
4762 if (scaling != 1.0f) {
4763 buf.apply_gain (scaling, nframes);
4768 /* on subsequent times around, merge data from
4769 * the port with what is already there
4772 if (scaling != 1.0f) {
4773 buf.accumulate_with_gain_from (source_port->get_audio_buffer (nframes), nframes, 0, scaling);
4775 buf.accumulate_from (source_port->get_audio_buffer (nframes), nframes);
4780 /* silence any remaining buffers */
4782 for (; i < n_buffers; ++i) {
4783 AudioBuffer& buf (bufs.get_audio (i));
4784 buf.silence (nframes);
4787 /* establish the initial setup of the buffer set, reflecting what was
4788 copied into it. unless, of course, we are the auditioner, in which
4789 case nothing was fed into it from the inputs at all.
4792 if (!is_auditioner()) {
4793 bufs.set_count (io->n_ports());