revert bd5da84928 - separate i/o-map & config reset.
[ardour.git] / libs / ardour / route.cc
index 7b4f1495fdba00dfe98e7659ce52edf07249cbef..6519980b684c6e53b1a11dde447cd9bbea2f1c19 100644 (file)
@@ -22,7 +22,6 @@
 #endif
 
 #include <cmath>
-#include <fstream>
 #include <cassert>
 #include <algorithm>
 
@@ -35,6 +34,7 @@
 #include "pbd/stacktrace.h"
 #include "pbd/convert.h"
 #include "pbd/boost_debug.h"
+#include "pbd/unwind.h"
 
 #include "ardour/amp.h"
 #include "ardour/audio_buffer.h"
@@ -46,6 +46,7 @@
 #include "ardour/capturing_processor.h"
 #include "ardour/debug.h"
 #include "ardour/delivery.h"
+#include "ardour/gain_control.h"
 #include "ardour/internal_return.h"
 #include "ardour/internal_send.h"
 #include "ardour/meter.h"
@@ -56,6 +57,7 @@
 #include "ardour/pannable.h"
 #include "ardour/panner.h"
 #include "ardour/panner_shell.h"
+#include "ardour/parameter_descriptor.h"
 #include "ardour/plugin_insert.h"
 #include "ardour/port.h"
 #include "ardour/port_insert.h"
@@ -88,6 +90,7 @@ Route::Route (Session& sess, string name, Flag flg, DataType default_type)
        , _initial_delay (0)
        , _roll_delay (0)
        , _pending_process_reorder (0)
+       , _pending_signals (0)
        , _flags (flg)
        , _pending_declick (true)
        , _meter_point (MeterPostFader)
@@ -96,7 +99,8 @@ Route::Route (Session& sess, string name, Flag flg, DataType default_type)
        , _self_solo (false)
        , _soloed_by_others_upstream (0)
        , _soloed_by_others_downstream (0)
-       , _solo_isolated (0)
+       , _solo_isolated (false)
+       , _solo_isolated_by_upstream (0)
        , _denormal_protection (false)
        , _recordable (true)
        , _silent (false)
@@ -111,6 +115,7 @@ Route::Route (Session& sess, string name, Flag flg, DataType default_type)
        , _track_number (0)
        , _in_configure_processors (false)
        , _initial_io_setup (false)
+       , _strict_io (false)
        , _custom_meter_position_noted (false)
 {
        processor_max_streams.reset();
@@ -133,12 +138,18 @@ Route::init ()
 
        _solo_control.reset (new SoloControllable (X_("solo"), shared_from_this ()));
        _mute_control.reset (new MuteControllable (X_("mute"), shared_from_this ()));
+       _phase_control.reset (new PhaseControllable (X_("phase"), shared_from_this ()));
+
+       _solo_isolate_control.reset (new SoloIsolateControllable (X_("solo-iso"), shared_from_this ()));
+       _solo_safe_control.reset (new SoloSafeControllable (X_("solo-safe"), shared_from_this ()));
 
        _solo_control->set_flags (Controllable::Flag (_solo_control->flags() | Controllable::Toggle));
        _mute_control->set_flags (Controllable::Flag (_mute_control->flags() | Controllable::Toggle));
+       _phase_control->set_flags (Controllable::Flag (_phase_control->flags() | Controllable::Toggle));
 
        add_control (_solo_control);
        add_control (_mute_control);
+       add_control (_phase_control);
 
        /* panning */
 
@@ -166,11 +177,22 @@ Route::init ()
 
        /* add amp processor  */
 
-       _amp.reset (new Amp (_session));
+       _gain_control = boost::shared_ptr<GainControllable> (new GainControllable (_session, GainAutomation, shared_from_this ()));
+       add_control (_gain_control);
+
+       _amp.reset (new Amp (_session, X_("Fader"), _gain_control, true));
        add_processor (_amp, PostFader);
 
+       if (is_monitor ()) {
+               _amp->set_display_name (_("Monitor"));
+       }
+
        /* and input trim */
-       _trim.reset (new Amp (_session, "trim"));
+
+       _trim_control = boost::shared_ptr<GainControllable> (new GainControllable (_session, TrimAutomation, shared_from_this ()));
+       add_control (_trim_control);
+
+       _trim.reset (new Amp (_session, X_("Trim"), _trim_control, false));
        _trim->set_display_to_user (false);
 
        if (dynamic_cast<AudioTrack*>(this)) {
@@ -256,7 +278,7 @@ Route::set_remote_control_id (uint32_t id, bool notify_class_listeners)
 void
 Route::set_remote_control_id_internal (uint32_t id, bool notify_class_listeners)
 {
-       /* force IDs for master/monitor busses and prevent 
+       /* force IDs for master/monitor busses and prevent
           any other route from accidentally getting these IDs
           (i.e. legacy sessions)
        */
@@ -275,7 +297,7 @@ Route::set_remote_control_id_internal (uint32_t id, bool notify_class_listeners)
 
        /* don't allow it to collide */
 
-       if (!is_master () && !is_monitor() && 
+       if (!is_master () && !is_monitor() &&
            (id == MasterBusRemoteControlID || id == MonitorBusRemoteControlID)) {
                id += MonitorBusRemoteControlID;
        }
@@ -295,7 +317,7 @@ Route::remote_control_id() const
 {
        if (is_master()) {
                return MasterBusRemoteControlID;
-       } 
+       }
 
        if (is_monitor()) {
                return MonitorBusRemoteControlID;
@@ -363,26 +385,37 @@ Route::ensure_track_or_route_name(string name, Session &session)
        string newname = name;
 
        while (!session.io_name_is_legal (newname)) {
-               newname = bump_name_once (newname, '.');
+               newname = bump_name_once (newname, ' ');
        }
 
        return newname;
 }
 
 void
-Route::inc_gain (gain_t fraction, void *src)
+Route::inc_gain (gain_t factor)
 {
-       _amp->inc_gain (fraction, src);
+       /* To be used ONLY when doing group-relative gain adjustment, from
+        * ::set_gain()
+        */
+
+       float desired_gain = _gain_control->user_double();
+
+       if (fabsf (desired_gain) < GAIN_COEFF_SMALL) {
+               // really?! what's the idea here?
+               _gain_control->route_set_value (0.000001f + (0.000001f * factor));
+       } else {
+               _gain_control->route_set_value (desired_gain + (desired_gain * factor));
+       }
 }
 
 void
-Route::set_gain (gain_t val, void *src)
+Route::set_gain (gain_t val, Controllable::GroupControlDisposition group_override)
 {
-       if (src != 0 && _route_group && src != _route_group && _route_group->is_active() && _route_group->is_gain()) {
+       if (use_group (group_override, &RouteGroup::is_gain)) {
 
                if (_route_group->is_relative()) {
 
-                       gain_t usable_gain = _amp->gain();
+                       gain_t usable_gain = _gain_control->get_value();
                        if (usable_gain < 0.000001f) {
                                usable_gain = 0.000001f;
                        }
@@ -413,34 +446,28 @@ Route::set_gain (gain_t val, void *src)
                                }
                        }
 
-                       _route_group->foreach_route (boost::bind (&Route::inc_gain, _1, factor, _route_group));
+                       _route_group->foreach_route (boost::bind (&Route::inc_gain, _1, factor));
 
                } else {
 
-                       _route_group->foreach_route (boost::bind (&Route::set_gain, _1, val, _route_group));
+                       _route_group->foreach_route (boost::bind (&Route::set_gain, _1, val, Controllable::NoGroup));
                }
 
                return;
        }
 
-       if (val == _amp->gain()) {
+       if (val == _gain_control->get_value()) {
                return;
        }
 
-       _amp->set_gain (val, src);
-}
-
-void
-Route::inc_trim (gain_t fraction, void *src)
-{
-       _trim->inc_gain (fraction, src);
+       _gain_control->route_set_value (val);
 }
 
 void
-Route::set_trim (gain_t val, void * /* src */)
+Route::set_trim (gain_t val, Controllable::GroupControlDisposition /* group override */)
 {
        // TODO route group, see set_gain()
-       _trim->set_gain (val, 0);
+       _trim_control->route_set_value (val);
 }
 
 void
@@ -497,13 +524,12 @@ Route::process_output_buffers (BufferSet& bufs,
 
        /* Tell main outs what to do about monitoring.  We do this so that
           on a transition between monitoring states we get a de-clicking gain
-          change in the _main_outs delivery.
-       */
-       bool silence = monitoring_state () == MonitoringSilence;
+          change in the _main_outs delivery, if config.get_use_monitor_fades()
+          is true.
 
-       //but we override this in the case where we have an internal generator
-       if ( _have_internal_generator )
-               silence = false;
+          We override this in the case where we have an internal generator.
+       */
+       bool silence = _have_internal_generator ? false : (monitoring_state () == MonitoringSilence);
 
        _main_outs->no_outs_cuz_we_no_monitor (silence);
 
@@ -638,7 +664,7 @@ Route::bounce_process (BufferSet& buffers, framepos_t start, framecnt_t nframes,
                        break;
                }
 
-               /* if we're not exporting, stop processing if we come across a routing processor. */
+               /* if we're *not* exporting, stop processing if we come across a routing processor. */
                if (!for_export && boost::dynamic_pointer_cast<PortInsert>(*i)) {
                        break;
                }
@@ -646,8 +672,20 @@ Route::bounce_process (BufferSet& buffers, framepos_t start, framecnt_t nframes,
                        break;
                }
 
-               /* don't run any processors that does routing.
-                * oh, and don't bother with the peak meter either.
+               /* special case the panner (export outputs)
+                * Ideally we'd only run the panner, not the delivery itself...
+                * but panners need separate input/output buffers and some context
+                * (panshell, panner type, etc). AFAICT there is no ill side effect
+                * of re-using the main delivery when freewheeling/exporting a region.
+                */
+               if ((*i) == _main_outs) {
+                       assert ((*i)->does_routing());
+                       (*i)->run (buffers, start - latency, start - latency + nframes, nframes, true);
+                       buffers.set_count ((*i)->output_streams());
+               }
+
+               /* don't run any processors that do routing.
+                * Also don't bother with metering.
                 */
                if (!(*i)->does_routing() && !boost::dynamic_pointer_cast<PeakMeter>(*i)) {
                        (*i)->run (buffers, start - latency, start - latency + nframes, nframes, true);
@@ -763,14 +801,14 @@ Route::passthru_silence (framepos_t start_frame, framepos_t end_frame, pframes_t
 }
 
 void
-Route::set_listen (bool yn, void* src)
+Route::set_listen (bool yn, Controllable::GroupControlDisposition group_override)
 {
        if (_solo_safe) {
                return;
        }
 
-       if (_route_group && src != _route_group && _route_group->is_active() && _route_group->is_solo()) {
-               _route_group->foreach_route (boost::bind (&Route::set_listen, _1, yn, _route_group));
+       if (use_group (group_override, &RouteGroup::is_solo)) {
+               _route_group->foreach_route (boost::bind (&Route::set_listen, _1, yn, Controllable::ForGroup));
                return;
        }
 
@@ -778,13 +816,14 @@ Route::set_listen (bool yn, void* src)
                if (yn != _monitor_send->active()) {
                        if (yn) {
                                _monitor_send->activate ();
-                               _mute_master->set_soloed (true);
+                               _mute_master->set_soloed_by_self (true);
                        } else {
                                _monitor_send->deactivate ();
-                               _mute_master->set_soloed (false);
+                               _mute_master->set_soloed_by_self (false);
                        }
+                       _mute_master->set_soloed_by_others (false);
 
-                       listen_changed (src); /* EMIT SIGNAL */
+                       listen_changed (group_override); /* EMIT SIGNAL */
                }
        }
 }
@@ -800,11 +839,12 @@ Route::listening_via_monitor () const
 }
 
 void
-Route::set_solo_safe (bool yn, void *src)
+Route::set_solo_safe (bool yn, Controllable::GroupControlDisposition /* group_override */)
 {
        if (_solo_safe != yn) {
                _solo_safe = yn;
-               solo_safe_changed (src);
+               solo_safe_changed (); /* EMIT SIGNAL */
+               _solo_safe_control->Changed(); /* EMIT SIGNAL */
        }
 }
 
@@ -815,8 +855,47 @@ Route::solo_safe() const
 }
 
 void
-Route::set_solo (bool yn, void *src)
+Route::clear_all_solo_state ()
+{
+       // ideally this function will never do anything, it only exists to forestall Murphy
+       bool emit_changed = false;
+
+#ifndef NDEBUG
+       // these are really debug messages, but of possible interest.
+       if (_self_solo) {
+               PBD::info << string_compose (_("Cleared Explicit solo: %1\n"), name());
+       }
+       if (_soloed_by_others_upstream || _soloed_by_others_downstream) {
+               PBD::info << string_compose (_("Cleared Implicit solo: %1 up:%2 down:%3\n"),
+                               name(), _soloed_by_others_upstream, _soloed_by_others_downstream);
+       }
+#endif
+
+       if (!_self_solo && (_soloed_by_others_upstream || _soloed_by_others_downstream)) {
+               // if self-soled, set_solo() will do signal emission
+               emit_changed = true;
+       }
+
+       _soloed_by_others_upstream = 0;
+       _soloed_by_others_downstream = 0;
+
+       {
+               PBD::Unwinder<bool> uw (_solo_safe, false);
+               set_solo (false, Controllable::NoGroup);
+       }
+
+       if (emit_changed) {
+               set_mute_master_solo ();
+               solo_changed (false, Controllable::UseGroup); /* EMIT SIGNAL */
+       }
+}
+
+void
+Route::set_solo (bool yn, Controllable::GroupControlDisposition group_override)
 {
+       DEBUG_TRACE (DEBUG::Solo, string_compose ("%1: set solo => %2, grp ? %3 currently self-soloed ? %4\n",
+                                                 name(), yn, enum_2_string(group_override), self_soloed()));
+
        if (_solo_safe) {
                DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 ignore solo change due to solo-safe\n", name()));
                return;
@@ -827,27 +906,25 @@ Route::set_solo (bool yn, void *src)
                return;
        }
 
-       if (_route_group && src != _route_group && _route_group->is_active() && _route_group->is_solo()) {
-               _route_group->foreach_route (boost::bind (&Route::set_solo, _1, yn, _route_group));
+       if (use_group (group_override, &RouteGroup::is_solo)) {
+               _route_group->foreach_route (boost::bind (&Route::set_solo, _1, yn, Controllable::ForGroup));
                return;
        }
 
-       DEBUG_TRACE (DEBUG::Solo, string_compose ("%1: set solo => %2, src: %3 grp ? %4 currently self-soloed ? %5\n", 
-                                                 name(), yn, src, (src == _route_group), self_soloed()));
-
        if (self_soloed() != yn) {
                set_self_solo (yn);
-               set_mute_master_solo ();
-               solo_changed (true, src); /* EMIT SIGNAL */
+               solo_changed (true, group_override); /* EMIT SIGNAL */
                _solo_control->Changed (); /* EMIT SIGNAL */
        }
 
+       assert (Config->get_solo_control_is_listen_control() || !_monitor_send || !_monitor_send->active());
+
        /* XXX TRACKS DEVELOPERS: THIS LOGIC SUGGESTS THAT YOU ARE NOT AWARE OF
           Config->get_solo_mute_overrride().
        */
 
        if (yn && Profile->get_trx()) {
-               set_mute (false, src);
+               set_mute (false, Controllable::UseGroup);
        }
 }
 
@@ -856,17 +933,13 @@ Route::set_self_solo (bool yn)
 {
        DEBUG_TRACE (DEBUG::Solo, string_compose ("%1: set SELF solo => %2\n", name(), yn));
        _self_solo = yn;
+       set_mute_master_solo ();
 }
 
 void
 Route::mod_solo_by_others_upstream (int32_t delta)
 {
-       if (_solo_safe) {
-               DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 ignore solo-by-upstream due to solo-safe\n", name()));
-               return;
-       }
-
-       DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 mod solo-by-upstream by %2, current up = %3 down = %4\n", 
+       DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 mod solo-by-upstream by %2, current up = %3 down = %4\n",
                                                  name(), delta, _soloed_by_others_upstream, _soloed_by_others_downstream));
 
        uint32_t old_sbu = _soloed_by_others_upstream;
@@ -904,8 +977,11 @@ Route::mod_solo_by_others_upstream (int32_t delta)
             (old_sbu > 0 && _soloed_by_others_upstream == 0))) {
 
                if (delta > 0 || !Config->get_exclusive_solo()) {
-                       DEBUG_TRACE (DEBUG::Solo, "\t ... INVERT push\n");
+                       DEBUG_TRACE (DEBUG::Solo, string_compose("\t ... INVERT push from %1\n", _name));
                        for (FedBy::iterator i = _fed_by.begin(); i != _fed_by.end(); ++i) {
+                               if (i->sends_only) {
+                                       continue;
+                               }
                                boost::shared_ptr<Route> sr = i->r.lock();
                                if (sr) {
                                        sr->mod_solo_by_others_downstream (-delta);
@@ -915,18 +991,13 @@ Route::mod_solo_by_others_upstream (int32_t delta)
        }
 
        set_mute_master_solo ();
-       solo_changed (false, this);
+       solo_changed (false, Controllable::UseGroup); /* EMIT SIGNAL */
 }
 
 void
 Route::mod_solo_by_others_downstream (int32_t delta)
 {
-       if (_solo_safe) {
-               DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 ignore solo-by-downstream due to solo safe\n", name()));
-               return;
-       }
-
-       DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 mod solo-by-downstream by %2, current up = %3 down = %4\n", 
+       DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 mod solo-by-downstream by %2, current up = %3 down = %4\n",
                                                  name(), delta, _soloed_by_others_upstream, _soloed_by_others_downstream));
 
        if (delta < 0) {
@@ -942,24 +1013,70 @@ Route::mod_solo_by_others_downstream (int32_t delta)
        DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 SbD delta %2 = %3\n", name(), delta, _soloed_by_others_downstream));
 
        set_mute_master_solo ();
-       solo_changed (false, this);
+       solo_changed (false, Controllable::UseGroup); /* EMIT SIGNAL */
 }
 
 void
 Route::set_mute_master_solo ()
 {
-       _mute_master->set_soloed (self_soloed() || soloed_by_others_downstream() || soloed_by_others_upstream());
+       _mute_master->set_soloed_by_self (self_soloed());
+       _mute_master->set_soloed_by_others (soloed_by_others_downstream() || soloed_by_others_upstream());
+}
+
+void
+Route::mod_solo_isolated_by_upstream (bool yn)
+{
+       bool old = solo_isolated ();
+       DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 mod_solo_isolated_by_upstream cur: %2 d: %3\n",
+                               name(), _solo_isolated_by_upstream, yn ? "+1" : "-1"));
+
+       if (!yn) {
+               if (_solo_isolated_by_upstream >= 1) {
+                       _solo_isolated_by_upstream--;
+               } else {
+                       _solo_isolated_by_upstream = 0;
+               }
+       } else {
+               _solo_isolated_by_upstream++;
+       }
+
+       if (solo_isolated() != old) {
+               /* solo isolated status changed */
+               _mute_master->set_solo_ignore (solo_isolated());
+               solo_isolated_changed (); /* EMIT SIGNAL */
+       }
 }
 
 void
-Route::set_solo_isolated (bool yn, void *src)
+Route::set_solo_isolated (bool yn, Controllable::GroupControlDisposition group_override)
 {
        if (is_master() || is_monitor() || is_auditioner()) {
                return;
        }
 
-       if (_route_group && src != _route_group && _route_group->is_active() && _route_group->is_solo()) {
-               _route_group->foreach_route (boost::bind (&Route::set_solo_isolated, _1, yn, _route_group));
+       if (use_group (group_override, &RouteGroup::is_solo)) {
+               _route_group->foreach_route (boost::bind (&Route::set_solo_isolated, _1, yn, Controllable::ForGroup));
+               return;
+       }
+
+       bool changed = false;
+
+       if (yn) {
+               if (_solo_isolated == false) {
+                       _mute_master->set_solo_ignore (true);
+                       changed = true;
+               }
+               _solo_isolated = true;
+       } else {
+               if (_solo_isolated == true) {
+                       _solo_isolated = false;
+                       _mute_master->set_solo_ignore (false);
+                       changed = true;
+               }
+       }
+
+
+       if (!changed) {
                return;
        }
 
@@ -973,42 +1090,23 @@ Route::set_solo_isolated (bool yn, void *src)
                }
 
                bool sends_only;
-               bool does_feed = direct_feeds_according_to_graph (*i, &sends_only); // we will recurse anyway, so don't use ::feeds()
+               bool does_feed = feeds (*i, &sends_only);
 
                if (does_feed && !sends_only) {
-                       (*i)->set_solo_isolated (yn, (*i)->route_group());
+                       (*i)->mod_solo_isolated_by_upstream (yn);
                }
        }
 
        /* XXX should we back-propagate as well? (April 2010: myself and chris goddard think not) */
 
-       bool changed = false;
-
-       if (yn) {
-               if (_solo_isolated == 0) {
-                       _mute_master->set_solo_ignore (true);
-                       changed = true;
-               }
-               _solo_isolated++;
-       } else {
-               if (_solo_isolated > 0) {
-                       _solo_isolated--;
-                       if (_solo_isolated == 0) {
-                               _mute_master->set_solo_ignore (false);
-                               changed = true;
-                       }
-               }
-       }
-
-       if (changed) {
-               solo_isolated_changed (src);
-       }
+       solo_isolated_changed (); /* EMIT SIGNAL */
+       _solo_isolate_control->Changed(); /* EMIT SIGNAL */
 }
 
 bool
 Route::solo_isolated () const
 {
-       return _solo_isolated > 0;
+       return (_solo_isolated == true) || (_solo_isolated_by_upstream > 0);
 }
 
 void
@@ -1018,16 +1116,16 @@ Route::set_mute_points (MuteMaster::MutePoint mp)
        mute_points_changed (); /* EMIT SIGNAL */
 
        if (_mute_master->muted_by_self()) {
-               mute_changed (this); /* EMIT SIGNAL */
+               mute_changed (); /* EMIT SIGNAL */
                _mute_control->Changed (); /* EMIT SIGNAL */
        }
 }
 
 void
-Route::set_mute (bool yn, void *src)
+Route::set_mute (bool yn, Controllable::GroupControlDisposition group_override)
 {
-       if (_route_group && src != _route_group && _route_group->is_active() && _route_group->is_mute()) {
-               _route_group->foreach_route (boost::bind (&Route::set_mute, _1, yn, _route_group));
+       if (use_group (group_override, &RouteGroup::is_mute)) {
+               _route_group->foreach_route (boost::bind (&Route::set_mute, _1, yn, Controllable::ForGroup));
                return;
        }
 
@@ -1038,7 +1136,7 @@ Route::set_mute (bool yn, void *src)
                */
                act_on_mute ();
                /* tell everyone else */
-               mute_changed (src); /* EMIT SIGNAL */
+               mute_changed (); /* EMIT SIGNAL */
                _mute_control->Changed (); /* EMIT SIGNAL */
        }
 }
@@ -1052,12 +1150,16 @@ Route::muted () const
 bool
 Route::muted_by_others () const
 {
+       // This method is only used by route_ui for display state.
+       // The real thing is MuteMaster::muted_by_others_at()
+
        //master is never muted by others
        if (is_master())
                return false;
-               
+
        //now check to see if something is soloed (and I am not)
-       return (_session.soloing() && !self_soloed() && !solo_isolated());
+       //see also MuteMaster::mute_gain_at()
+       return (_session.soloing() && !soloed() && !solo_isolated());
 }
 
 #if 0
@@ -1082,7 +1184,7 @@ Route::before_processor_for_placement (Placement p)
        Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
 
        ProcessorList::iterator loc;
-       
+
        if (p == PreFader) {
                /* generic pre-fader: insert immediately before the amp */
                loc = find (_processors.begin(), _processors.end(), _amp);
@@ -1105,14 +1207,14 @@ Route::before_processor_for_index (int index)
        }
 
        Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
-       
+
        ProcessorList::iterator i = _processors.begin ();
        int j = 0;
        while (i != _processors.end() && j < index) {
                if ((*i)->display_to_user()) {
                        ++j;
                }
-               
+
                ++i;
        }
 
@@ -1156,6 +1258,13 @@ Route::add_processor (boost::shared_ptr<Processor> processor, boost::shared_ptr<
                return 1;
        }
 
+       if (_strict_io) {
+               boost::shared_ptr<PluginInsert> pi;
+               if ((pi = boost::dynamic_pointer_cast<PluginInsert>(processor)) != 0) {
+                       pi->set_strict_io (true);
+               }
+       }
+
        {
                Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
                Glib::Threads::RWLock::WriterLock lm (_processor_lock);
@@ -1215,7 +1324,7 @@ Route::add_processor (boost::shared_ptr<Processor> processor, boost::shared_ptr<
 
                }
 
-               if (activation_allowed && !_session.get_disable_all_loaded_plugins()) {
+               if (activation_allowed && (!_session.get_bypass_all_loaded_plugins () || !processor->display_to_user ())) {
                        processor->activate ();
                }
 
@@ -1268,7 +1377,11 @@ Route::add_processor_from_xml_2X (const XMLNode& node, int version)
                                                prop->value() == "lxvst" ||
                                                prop->value() == "audiounit") {
 
-                                       processor.reset (new PluginInsert (_session));
+                                       if (_session.get_disable_all_loaded_plugins ()) {
+                                               processor.reset (new UnknownProcessor (_session, node));
+                                       } else {
+                                               processor.reset (new PluginInsert (_session));
+                                       }
 
                                } else {
 
@@ -1291,11 +1404,11 @@ Route::add_processor_from_xml_2X (const XMLNode& node, int version)
                if (processor->set_state (node, version)) {
                        return false;
                }
-               
+
                //A2 uses the "active" flag in the toplevel redirect node, not in the child plugin/IO
                if (i != children.end()) {
                        if ((prop = (*i)->property (X_("active"))) != 0) {
-                               if ( string_is_affirmative (prop->value()) && !_session.get_disable_all_loaded_plugins() )
+                               if ( string_is_affirmative (prop->value()) && (!_session.get_bypass_all_loaded_plugins () || !processor->display_to_user () ) )
                                        processor->activate();
                                else
                                        processor->deactivate();
@@ -1350,7 +1463,8 @@ Route::add_processors (const ProcessorList& others, boost::shared_ptr<Processor>
                        boost::shared_ptr<PluginInsert> pi;
 
                        if ((pi = boost::dynamic_pointer_cast<PluginInsert>(*i)) != 0) {
-                               pi->set_count (1);
+                               pi->set_count (1); // why? configure_processors_unlocked() will re-do this
+                               pi->set_strict_io (_strict_io);
                        }
 
                        _processors.insert (loc, *i);
@@ -1674,7 +1788,7 @@ Route::remove_processor (boost::shared_ptr<Processor> processor, ProcessorStream
                if (!removed) {
                        /* what? */
                        return 1;
-               } 
+               }
 
                if (configure_processors_unlocked (err)) {
                        pstate.restore ();
@@ -1708,6 +1822,104 @@ Route::remove_processor (boost::shared_ptr<Processor> processor, ProcessorStream
        return 0;
 }
 
+int
+Route::replace_processor (boost::shared_ptr<Processor> old, boost::shared_ptr<Processor> sub, ProcessorStreams* err)
+{
+       /* these can never be removed */
+       if (old == _amp || old == _meter || old == _main_outs || old == _delayline || old == _trim) {
+               return 1;
+       }
+       /* and can't be used as substitute, either */
+       if (sub == _amp || sub == _meter || sub == _main_outs || sub == _delayline || sub == _trim) {
+               return 1;
+       }
+
+       /* I/Os are out, too */
+       if (boost::dynamic_pointer_cast<IOProcessor> (old) || boost::dynamic_pointer_cast<IOProcessor> (sub)) {
+               return 1;
+       }
+
+       /* this function cannot be used to swap/reorder processors */
+       if (find (_processors.begin(), _processors.end(), sub) != _processors.end ()) {
+               return 1;
+       }
+
+       if (!AudioEngine::instance()->connected() || !old || !sub) {
+               return 1;
+       }
+
+       /* ensure that sub is not owned by another route */
+       if (sub->owner ()) {
+               return 1;
+       }
+
+       {
+               Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
+               Glib::Threads::RWLock::WriterLock lm (_processor_lock);
+               ProcessorState pstate (this);
+
+               assert (find (_processors.begin(), _processors.end(), sub) == _processors.end ());
+
+               ProcessorList::iterator i;
+               bool replaced = false;
+               bool enable = old->active ();
+
+               for (i = _processors.begin(); i != _processors.end(); ) {
+                       if (*i == old) {
+                               i = _processors.erase (i);
+                               _processors.insert (i, sub);
+                               sub->set_owner (this);
+                               replaced = true;
+                               break;
+                       } else {
+                               ++i;
+                       }
+               }
+
+               if (!replaced) {
+                       return 1;
+               }
+
+               if (_strict_io) {
+                       boost::shared_ptr<PluginInsert> pi;
+                       if ((pi = boost::dynamic_pointer_cast<PluginInsert>(sub)) != 0) {
+                               pi->set_strict_io (true);
+                       }
+               }
+
+               if (configure_processors_unlocked (err)) {
+                       pstate.restore ();
+                       configure_processors_unlocked (0);
+                       return -1;
+               }
+
+               _have_internal_generator = false;
+
+               for (i = _processors.begin(); i != _processors.end(); ++i) {
+                       boost::shared_ptr<PluginInsert> pi;
+                       if ((pi = boost::dynamic_pointer_cast<PluginInsert>(*i)) != 0) {
+                               if (pi->has_no_inputs ()) {
+                                       _have_internal_generator = true;
+                                       break;
+                               }
+                       }
+               }
+
+               if (enable) {
+                       sub->activate ();
+               }
+
+               sub->ActiveChanged.connect_same_thread (*this, boost::bind (&Session::update_latency_compensation, &_session, false));
+               _output->set_user_latency (0);
+       }
+
+       reset_instrument_info ();
+       old->drop_references ();
+       processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
+       set_processor_positions ();
+       return 0;
+}
+
 int
 Route::remove_processors (const ProcessorList& to_be_deleted, ProcessorStreams* err)
 {
@@ -1854,15 +2066,40 @@ Route::try_configure_processors_unlocked (ChanCount in, ProcessorStreams* err)
 
        for (ProcessorList::iterator p = _processors.begin(); p != _processors.end(); ++p, ++index) {
 
-               if (boost::dynamic_pointer_cast<UnknownProcessor> (*p)) {
-                       DEBUG_TRACE (DEBUG::Processors, "--- CONFIGURE ABORTED due to unknown processor.\n");
-                       DEBUG_TRACE (DEBUG::Processors, "}\n");
-                       return list<pair<ChanCount, ChanCount> > ();
-               }
-
                if ((*p)->can_support_io_configuration(in, out)) {
                        DEBUG_TRACE (DEBUG::Processors, string_compose ("\t%1 ID=%2 in=%3 out=%4\n",(*p)->name(), (*p)->id(), in, out));
                        configuration.push_back(make_pair(in, out));
+
+                       if (is_monitor()) {
+                               // restriction for Monitor Section Processors
+                               if (in.n_audio() != out.n_audio() || out.n_midi() > 0) {
+                                       /* do not allow to add/remove channels (for now)
+                                        * The Monitor follows the master-bus and has no panner (unpan)
+                                        * but do allow processors with midi-in to be added (e.g VSTs with control that
+                                        * will remain unconnected)
+                                        */
+                                       DEBUG_TRACE (DEBUG::Processors, "Monitor: Channel configuration not allowed.\n");
+                                       return list<pair<ChanCount, ChanCount> > ();
+                               }
+                               if (boost::dynamic_pointer_cast<InternalSend> (*p)) {
+                                       // internal sends make no sense, only feedback
+                                       DEBUG_TRACE (DEBUG::Processors, "Monitor: No Sends allowed.\n");
+                                       return list<pair<ChanCount, ChanCount> > ();
+                               }
+                               if (boost::dynamic_pointer_cast<PortInsert> (*p)) {
+                                       /* External Sends can be problematic. one can add/remove ports
+                                        * there signal leaves the DAW to external monitors anyway, so there's
+                                        * no real use for allowing them here anyway.
+                                        */
+                                       DEBUG_TRACE (DEBUG::Processors, "Monitor: No External Sends allowed.\n");
+                                       return list<pair<ChanCount, ChanCount> > ();
+                               }
+                               if (boost::dynamic_pointer_cast<Send> (*p)) {
+                                       // ditto
+                                       DEBUG_TRACE (DEBUG::Processors, "Monitor: No Sends allowed.\n");
+                                       return list<pair<ChanCount, ChanCount> > ();
+                               }
+                       }
                        in = out;
                } else {
                        if (err) {
@@ -1916,20 +2153,24 @@ Route::configure_processors_unlocked (ProcessorStreams* err)
        list< pair<ChanCount,ChanCount> >::iterator c = configuration.begin();
        for (ProcessorList::iterator p = _processors.begin(); p != _processors.end(); ++p, ++c) {
 
-               if (boost::dynamic_pointer_cast<UnknownProcessor> (*p)) {
-                       break;
+               if (!(*p)->configure_io(c->first, c->second)) {
+                       DEBUG_TRACE (DEBUG::Processors, string_compose ("%1: configuration failed\n", _name));
+                       _in_configure_processors = false;
+                       return -1;
                }
-
-               (*p)->configure_io(c->first, c->second);
                processor_max_streams = ChanCount::max(processor_max_streams, c->first);
                processor_max_streams = ChanCount::max(processor_max_streams, c->second);
 
                boost::shared_ptr<PluginInsert> pi;
                if ((pi = boost::dynamic_pointer_cast<PluginInsert>(*p)) != 0) {
-                       /* plugins connected via Split Match may have more channels.
-                        * route/scratch buffers are needed for all of them*/
+                       /* plugins connected via Split or Hide Match may have more channels.
+                        * route/scratch buffers are needed for all of them
+                        * The configuration may only be a subset (both input and output)
+                        */
                        processor_max_streams = ChanCount::max(processor_max_streams, pi->input_streams());
-                       processor_max_streams = ChanCount::max(processor_max_streams, pi->natural_input_streams());
+                       processor_max_streams = ChanCount::max(processor_max_streams, pi->output_streams());
+                       processor_max_streams = ChanCount::max(processor_max_streams, pi->natural_input_streams() * pi->get_count());
+                       processor_max_streams = ChanCount::max(processor_max_streams, pi->natural_output_streams() * pi->get_count());
                }
                out = c->second;
 
@@ -1952,7 +2193,7 @@ Route::configure_processors_unlocked (ProcessorStreams* err)
        }
 
        /* make sure we have sufficient scratch buffers to cope with the new processor
-          configuration 
+          configuration
        */
        _session.ensure_buffers (n_process_buffers ());
 
@@ -1973,12 +2214,12 @@ Route::all_visible_processors_active (bool state)
        if (_processors.empty()) {
                return;
        }
-       
+
        for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
                if (!(*i)->display_to_user() || boost::dynamic_pointer_cast<Amp> (*i)) {
                        continue;
                }
-               
+
                if (state) {
                        (*i)->activate ();
                } else {
@@ -2162,52 +2403,160 @@ Route::reorder_processors (const ProcessorList& new_order, ProcessorStreams* err
        return 0;
 }
 
-XMLNode&
-Route::get_state()
+bool
+Route::reset_plugin_insert (boost::shared_ptr<Processor> proc)
 {
-       return state(true);
+       ChanCount unused;
+       return customize_plugin_insert (proc, 0, unused);
 }
 
-XMLNode&
-Route::get_template()
+bool
+Route::customize_plugin_insert (boost::shared_ptr<Processor> proc, uint32_t count, ChanCount outs)
 {
-       return state(false);
-}
+       boost::shared_ptr<PluginInsert> pi;
+       if ((pi = boost::dynamic_pointer_cast<PluginInsert>(proc)) == 0) {
+               return false;
+       }
 
-XMLNode&
-Route::state(bool full_state)
-{
-       XMLNode *node = new XMLNode("Route");
-       ProcessorList::iterator i;
-       char buf[32];
+       {
+               bool found = false;
+               Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
+               for (ProcessorList::iterator p = _processors.begin(); p != _processors.end(); ++p) {
+                       if (*p == proc) {
+                               found = true;
+                               break;
+                       }
+               }
+               if (!found) {
+                       return false;
+               }
+       }
 
-       id().print (buf, sizeof (buf));
-       node->add_property("id", buf);
-       node->add_property ("name", _name);
-       node->add_property("default-type", _default_type.to_string());
+       {
+               Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
+               Glib::Threads::RWLock::WriterLock lm (_processor_lock);
+               ProcessorState pstate (this);
 
-       if (_flags) {
-               node->add_property("flags", enum_2_string (_flags));
-       }
+               bool      old_cust = pi->custom_cfg ();
+               uint32_t  old_cnt  = pi->get_count ();
+               ChanCount old_chan = pi->output_streams ();
 
-       node->add_property("active", _active?"yes":"no");
-       string p;
-       boost::to_string (_phase_invert, p);
-       node->add_property("phase-invert", p);
-       node->add_property("denormal-protection", _denormal_protection?"yes":"no");
-       node->add_property("meter-point", enum_2_string (_meter_point));
+               if (count == 0) {
+                       pi->set_custom_cfg (false);
+               } else {
+                       pi->set_custom_cfg (true);
+                       pi->set_count (count);
+                       pi->set_outputs (outs);
+               }
 
-       node->add_property("meter-type", enum_2_string (_meter_type));
+               list<pair<ChanCount, ChanCount> > c = try_configure_processors_unlocked (n_inputs (), 0);
+               if (c.empty()) {
+                       /* not possible */
 
-       if (_route_group) {
-               node->add_property("route-group", _route_group->name());
+                       pi->set_count (old_cnt);
+                       pi->set_outputs (old_chan);
+                       pi->set_custom_cfg (old_cust);
+
+                       return false;
+               }
+               configure_processors_unlocked (0);
        }
 
-       snprintf (buf, sizeof (buf), "%d", _order_key);
-       node->add_property ("order-key", buf);
-       node->add_property ("self-solo", (_self_solo ? "yes" : "no"));
-       snprintf (buf, sizeof (buf), "%d", _soloed_by_others_upstream);
-       node->add_property ("soloed-by-upstream", buf);
+       processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
+       _session.set_dirty ();
+       return true;
+}
+
+bool
+Route::set_strict_io (const bool enable)
+{
+       if (_strict_io != enable) {
+               _strict_io = enable;
+               Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
+               for (ProcessorList::iterator p = _processors.begin(); p != _processors.end(); ++p) {
+                       boost::shared_ptr<PluginInsert> pi;
+                       if ((pi = boost::dynamic_pointer_cast<PluginInsert>(*p)) != 0) {
+                               pi->set_strict_io (_strict_io);
+                       }
+               }
+
+               list<pair<ChanCount, ChanCount> > c = try_configure_processors_unlocked (n_inputs (), 0);
+
+               if (c.empty()) {
+                       // not possible
+                       _strict_io = !enable; // restore old value
+                       for (ProcessorList::iterator p = _processors.begin(); p != _processors.end(); ++p) {
+                               boost::shared_ptr<PluginInsert> pi;
+                               if ((pi = boost::dynamic_pointer_cast<PluginInsert>(*p)) != 0) {
+                                       pi->set_strict_io (_strict_io);
+                               }
+                       }
+                       return false;
+               }
+               lm.release ();
+
+               {
+                       Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
+                       configure_processors (0);
+               }
+               processors_changed (RouteProcessorChange ()); /* EMIT SIGNAL */
+               _session.set_dirty ();
+       }
+       return true;
+}
+
+XMLNode&
+Route::get_state()
+{
+       return state(true);
+}
+
+XMLNode&
+Route::get_template()
+{
+       return state(false);
+}
+
+XMLNode&
+Route::state(bool full_state)
+{
+       if (!_session._template_state_dir.empty()) {
+               assert (!full_state); // only for templates
+               foreach_processor (sigc::bind (sigc::mem_fun (*this, &Route::set_plugin_state_dir), _session._template_state_dir));
+       }
+
+       XMLNode *node = new XMLNode("Route");
+       ProcessorList::iterator i;
+       char buf[32];
+
+       id().print (buf, sizeof (buf));
+       node->add_property("id", buf);
+       node->add_property ("name", _name);
+       node->add_property("default-type", _default_type.to_string());
+       node->add_property ("strict-io", _strict_io);
+
+       if (_flags) {
+               node->add_property("flags", enum_2_string (_flags));
+       }
+
+       node->add_property("active", _active?"yes":"no");
+       string p;
+       boost::to_string (_phase_invert, p);
+       node->add_property("phase-invert", p);
+       node->add_property("denormal-protection", _denormal_protection?"yes":"no");
+       node->add_property("meter-point", enum_2_string (_meter_point));
+
+       node->add_property("meter-type", enum_2_string (_meter_type));
+
+       if (_route_group) {
+               node->add_property("route-group", _route_group->name());
+       }
+
+       snprintf (buf, sizeof (buf), "%d", _order_key);
+       node->add_property ("order-key", buf);
+       node->add_property ("self-solo", (_self_solo ? "yes" : "no"));
+       snprintf (buf, sizeof (buf), "%d", _soloed_by_others_upstream);
+       node->add_property ("soloed-by-upstream", buf);
        snprintf (buf, sizeof (buf), "%d", _soloed_by_others_downstream);
        node->add_property ("soloed-by-downstream", buf);
        node->add_property ("solo-isolated", solo_isolated() ? "yes" : "no");
@@ -2239,7 +2588,7 @@ Route::state(bool full_state)
 
        for (i = _processors.begin(); i != _processors.end(); ++i) {
                if (!full_state) {
-                       /* template save: do not include internal sends functioning as 
+                       /* template save: do not include internal sends functioning as
                           aux sends because the chance of the target ID
                           in the session where this template is used
                           is not very likely.
@@ -2271,6 +2620,10 @@ Route::state(bool full_state)
                }
        }
 
+       if (!_session._template_state_dir.empty()) {
+               foreach_processor (sigc::bind (sigc::mem_fun (*this, &Route::set_plugin_state_dir), ""));
+       }
+
        return *node;
 }
 
@@ -2304,6 +2657,10 @@ Route::set_state (const XMLNode& node, int version)
                _flags = Flag (0);
        }
 
+       if ((prop = node.property (X_("strict-io"))) != 0) {
+               _strict_io = string_is_affirmative (prop->value());
+       }
+
        if (is_master() || is_monitor() || is_auditioner()) {
                _mute_master->set_solo_ignore (true);
        }
@@ -2386,11 +2743,11 @@ Route::set_state (const XMLNode& node, int version)
        }
 
        if ((prop = node.property ("solo-isolated")) != 0) {
-               set_solo_isolated (string_is_affirmative (prop->value()), this);
+               set_solo_isolated (string_is_affirmative (prop->value()), Controllable::NoGroup);
        }
 
        if ((prop = node.property ("solo-safe")) != 0) {
-               set_solo_safe (string_is_affirmative (prop->value()), this);
+               set_solo_safe (string_is_affirmative (prop->value()), Controllable::NoGroup);
        }
 
        if ((prop = node.property (X_("phase-invert"))) != 0) {
@@ -2545,7 +2902,7 @@ Route::set_state_2X (const XMLNode& node, int version)
 
                /* XXX force reset of solo status */
 
-               set_solo (yn, this);
+               set_solo (yn);
        }
 
        if ((prop = node.property (X_("muted"))) != 0) {
@@ -2684,7 +3041,7 @@ Route::set_state_2X (const XMLNode& node, int version)
                                gain_t val;
 
                                if (sscanf (prop->value().c_str(), "%f", &val) == 1) {
-                                       _amp->gain_control()->set_value (val);
+                                       _amp->gain_control()->set_value (val, Controllable::NoGroup);
                                }
                        }
 
@@ -2847,11 +3204,20 @@ Route::set_processor_state (const XMLNode& node)
                                } else if (prop->value() == "ladspa" || prop->value() == "Ladspa" ||
                                           prop->value() == "lv2" ||
                                           prop->value() == "windows-vst" ||
-                                          prop->value() == "lxvst" ||
+                                          prop->value() == "lxvst" ||
+                                          prop->value() == "luaproc" ||
                                           prop->value() == "audiounit") {
 
-                                       processor.reset (new PluginInsert(_session));
+                                       if (_session.get_disable_all_loaded_plugins ()) {
+                                               processor.reset (new UnknownProcessor (_session, **niter));
+                                       } else {
+                                               processor.reset (new PluginInsert (_session));
+                                               if (_strict_io) {
+                                                       boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert>(processor);
+                                                       pi->set_strict_io (true);
+                                               }
 
+                                       }
                                } else if (prop->value() == "port") {
 
                                        processor.reset (new PortInsert (_session, _pannable, _mute_master));
@@ -3080,19 +3446,26 @@ Route::remove_aux_or_listen (boost::shared_ptr<Route> route)
 
          again:
                for (ProcessorList::iterator x = _processors.begin(); x != _processors.end(); ++x) {
-                       
+
                        boost::shared_ptr<InternalSend> d = boost::dynamic_pointer_cast<InternalSend>(*x);
-                       
+
                        if (d && d->target_route() == route) {
                                rl.release ();
-                               remove_processor (*x, &err, false);
+                               if (remove_processor (*x, &err, false) > 0) {
+                                       rl.acquire ();
+                                       continue;
+                               }
                                rl.acquire ();
 
                                /* list could have been demolished while we dropped the lock
                                   so start over.
                                */
-                               
-                               goto again;
+                               if (_session.engine().connected()) {
+                                       /* i/o processors cannot be removed if the engine is not running
+                                        * so don't live-loop in case the engine is N/A or dies
+                                        */
+                                       goto again;
+                               }
                        }
                }
        }
@@ -3102,7 +3475,7 @@ void
 Route::set_comment (string cmt, void *src)
 {
        _comment = cmt;
-       comment_changed (src);
+       comment_changed ();
        _session.set_dirty ();
 }
 
@@ -3224,23 +3597,80 @@ Route::nonrealtime_handle_transport_stopped (bool /*abort_ignored*/, bool /*did_
 void
 Route::input_change_handler (IOChange change, void * /*src*/)
 {
-       bool need_to_queue_solo_change = true;
-
        if ((change.type & IOChange::ConfigurationChanged)) {
-               /* This is called with the process lock held if change 
-                  contains ConfigurationChanged 
+               /* This is called with the process lock held if change
+                  contains ConfigurationChanged
                */
-               need_to_queue_solo_change = false;
                configure_processors (0);
                _phase_invert.resize (_input->n_ports().n_audio ());
                io_changed (); /* EMIT SIGNAL */
        }
 
-       if (!_input->connected() && _soloed_by_others_upstream) {
-               if (need_to_queue_solo_change) {
-                       _session.cancel_solo_after_disconnect (shared_from_this(), true);
-               } else {
-                       cancel_solo_after_disconnect (true);
+       if (_soloed_by_others_upstream || _solo_isolated_by_upstream) {
+               int sbou = 0;
+               int ibou = 0;
+               boost::shared_ptr<RouteList> routes = _session.get_routes ();
+               if (_input->connected()) {
+                       for (RouteList::iterator i = routes->begin(); i != routes->end(); ++i) {
+                               if ((*i).get() == this || (*i)->is_master() || (*i)->is_monitor() || (*i)->is_auditioner()) {
+                                       continue;
+                               }
+                               bool sends_only;
+                               bool does_feed = (*i)->direct_feeds_according_to_reality (shared_from_this(), &sends_only);
+                               if (does_feed && !sends_only) {
+                                       if ((*i)->soloed()) {
+                                               ++sbou;
+                                       }
+                                       if ((*i)->solo_isolated()) {
+                                               ++ibou;
+                                       }
+                               }
+                       }
+               }
+
+               int delta  = sbou - _soloed_by_others_upstream;
+               int idelta = ibou - _solo_isolated_by_upstream;
+
+               if (idelta < -1) {
+                       PBD::warning << string_compose (
+                                       _("Invalid Solo-Isolate propagation: from:%1 new:%2 - old:%3 = delta:%4"),
+                                       _name, ibou, _solo_isolated_by_upstream, idelta)
+                                    << endmsg;
+
+               }
+
+               if (_soloed_by_others_upstream) {
+                       // ignore new connections (they're not propagated)
+                       if (delta <= 0) {
+                               mod_solo_by_others_upstream (delta);
+                       }
+               }
+
+               if (_solo_isolated_by_upstream) {
+                       // solo-isolate currently only propagates downstream
+                       if (idelta < 0) {
+                               mod_solo_isolated_by_upstream (false);
+                       }
+                       // TODO think: mod_solo_isolated_by_upstream() does not take delta arg,
+                       // but idelta can't be smaller than -1, can it?
+                       //_solo_isolated_by_upstream = ibou;
+               }
+
+               // Session::route_solo_changed  does not propagate indirect solo-changes
+               // propagate downstream to tracks
+               for (RouteList::iterator i = routes->begin(); i != routes->end(); ++i) {
+                       if ((*i).get() == this || (*i)->is_master() || (*i)->is_monitor() || (*i)->is_auditioner()) {
+                               continue;
+                       }
+                       bool sends_only;
+                       bool does_feed = feeds (*i, &sends_only);
+                       if (delta <= 0 && does_feed && !sends_only) {
+                               (*i)->mod_solo_by_others_upstream (delta);
+                       }
+
+                       if (idelta < 0 && does_feed && !sends_only) {
+                               (*i)->mod_solo_isolated_by_upstream (false);
+                       }
                }
        }
 }
@@ -3248,16 +3678,14 @@ Route::input_change_handler (IOChange change, void * /*src*/)
 void
 Route::output_change_handler (IOChange change, void * /*src*/)
 {
-       bool need_to_queue_solo_change = true;
        if (_initial_io_setup) {
                return;
        }
 
        if ((change.type & IOChange::ConfigurationChanged)) {
-               /* This is called with the process lock held if change 
-                  contains ConfigurationChanged 
+               /* This is called with the process lock held if change
+                  contains ConfigurationChanged
                */
-               need_to_queue_solo_change = false;
                configure_processors (0);
 
                if (is_master()) {
@@ -3267,25 +3695,48 @@ Route::output_change_handler (IOChange change, void * /*src*/)
                io_changed (); /* EMIT SIGNAL */
        }
 
-       if (!_output->connected() && _soloed_by_others_downstream) {
-               if (need_to_queue_solo_change) {
-                       _session.cancel_solo_after_disconnect (shared_from_this(), false);
-               } else {
-                       cancel_solo_after_disconnect (false);
+       if (_soloed_by_others_downstream) {
+               int sbod = 0;
+               /* checking all all downstream routes for
+                * explicit of implict solo is a rather drastic measure,
+                * ideally the input_change_handler() of the other route
+                * would propagate the change to us.
+                */
+               boost::shared_ptr<RouteList> routes = _session.get_routes ();
+               if (_output->connected()) {
+                       for (RouteList::iterator i = routes->begin(); i != routes->end(); ++i) {
+                               if ((*i).get() == this || (*i)->is_master() || (*i)->is_monitor() || (*i)->is_auditioner()) {
+                                       continue;
+                               }
+                               bool sends_only;
+                               bool does_feed = direct_feeds_according_to_reality (*i, &sends_only);
+                               if (does_feed && !sends_only) {
+                                       if ((*i)->soloed()) {
+                                               ++sbod;
+                                               break;
+                                       }
+                               }
+                       }
                }
-       }
-}
+               int delta = sbod - _soloed_by_others_downstream;
+               if (delta <= 0) {
+                       // do not allow new connections to change implicit solo (no propagation)
+                       mod_solo_by_others_downstream (delta);
+                       // Session::route_solo_changed() does not propagate indirect solo-changes
+                       // propagate upstream to tracks
+                       for (RouteList::iterator i = routes->begin(); i != routes->end(); ++i) {
+                               if ((*i).get() == this || (*i)->is_master() || (*i)->is_monitor() || (*i)->is_auditioner()) {
+                                       continue;
+                               }
+                               bool sends_only;
+                               bool does_feed = (*i)->feeds (shared_from_this(), &sends_only);
+                               if (delta != 0 && does_feed && !sends_only) {
+                                       (*i)->mod_solo_by_others_downstream (delta);
+                               }
+                       }
 
-void
-Route::cancel_solo_after_disconnect (bool upstream)
-{
-       if (upstream) {
-               _soloed_by_others_upstream = 0;
-       } else {
-               _soloed_by_others_downstream = 0;
+               }
        }
-       set_mute_master_solo ();
-       solo_changed (false, this);
 }
 
 uint32_t
@@ -3539,9 +3990,9 @@ Route::set_meter_point_unlocked ()
        /* Set up the meter for its new position */
 
        ProcessorList::iterator loc = find (_processors.begin(), _processors.end(), _meter);
-       
+
        ChanCount m_in;
-       
+
        if (loc == _processors.begin()) {
                m_in = _input->n_ports();
        } else {
@@ -3574,6 +4025,7 @@ Route::listen_position_changed ()
                ProcessorState pstate (this);
 
                if (configure_processors_unlocked (0)) {
+                       DEBUG_TRACE (DEBUG::Processors, "---- CONFIGURATION FAILED.\n");
                        pstate.restore ();
                        configure_processors_unlocked (0); // it worked before we tried to add it ...
                        return;
@@ -3676,115 +4128,6 @@ Route::set_latency_compensation (framecnt_t longest_session_latency)
        }
 }
 
-Route::SoloControllable::SoloControllable (std::string name, boost::shared_ptr<Route> r)
-       : AutomationControl (r->session(),
-                            Evoral::Parameter (SoloAutomation),
-                            ParameterDescriptor(Evoral::Parameter (SoloAutomation)),
-                            boost::shared_ptr<AutomationList>(), name)
-       , _route (r)
-{
-       boost::shared_ptr<AutomationList> gl(new AutomationList(Evoral::Parameter(SoloAutomation)));
-       gl->set_interpolation(Evoral::ControlList::Discrete);
-       set_list (gl);
-}
-
-void
-Route::SoloControllable::set_value (double val)
-{
-       const bool bval = ((val >= 0.5) ? true : false);
-
-       boost::shared_ptr<RouteList> rl (new RouteList);
-
-       boost::shared_ptr<Route> r = _route.lock ();
-       if (!r) {
-               return;
-       }
-
-       rl->push_back (r);
-
-       if (Config->get_solo_control_is_listen_control()) {
-               _session.set_listen (rl, bval);
-       } else {
-               _session.set_solo (rl, bval);
-       }
-}
-
-double
-Route::SoloControllable::get_value () const
-{
-       boost::shared_ptr<Route> r = _route.lock ();
-       if (!r) {
-               return 0;
-       }
-
-       if (Config->get_solo_control_is_listen_control()) {
-               return r->listening_via_monitor() ? GAIN_COEFF_UNITY : GAIN_COEFF_ZERO;
-       } else {
-               return r->self_soloed() ? GAIN_COEFF_UNITY : GAIN_COEFF_ZERO;
-       }
-}
-
-Route::MuteControllable::MuteControllable (std::string name, boost::shared_ptr<Route> r)
-       : AutomationControl (r->session(),
-                            Evoral::Parameter (MuteAutomation),
-                            ParameterDescriptor (Evoral::Parameter (MuteAutomation)),
-                            boost::shared_ptr<AutomationList>(),
-                            name)
-       , _route (r)
-{
-       boost::shared_ptr<AutomationList> gl(new AutomationList(Evoral::Parameter(MuteAutomation)));
-       gl->set_interpolation(Evoral::ControlList::Discrete);
-       set_list (gl);
-}
-
-void
-Route::MuteControllable::set_superficial_value(bool muted)
-{
-       /* Note we can not use AutomationControl::set_value here since it will emit
-          Changed(), but the value will not be correct to the observer. */
-
-       bool to_list = _list && ((AutomationList*)_list.get())->automation_write();
-
-       Control::set_double (muted, _session.transport_frame(), to_list);
-}
-
-void
-Route::MuteControllable::set_value (double val)
-{
-       const bool bval = ((val >= 0.5) ? true : false);
-
-       boost::shared_ptr<Route> r = _route.lock ();
-       if (!r) {
-               return;
-       }
-
-       if (_list && ((AutomationList*)_list.get())->automation_playback()) {
-               // Playing back automation, set route mute directly
-               r->set_mute (bval, this);
-       } else {
-               // Set from user, queue mute event
-               boost::shared_ptr<RouteList> rl (new RouteList);
-               rl->push_back (r);
-               _session.set_mute (rl, bval, Session::rt_cleanup);
-       }
-
-       // Set superficial/automation value to drive controller (and possibly record)
-       set_superficial_value(bval);
-}
-
-double
-Route::MuteControllable::get_value () const
-{
-       if (_list && ((AutomationList*)_list.get())->automation_playback()) {
-               // Playing back automation, get the value from the list
-               return AutomationControl::get_value();
-       }
-
-       // Not playing back automation, get the actual route mute value
-       boost::shared_ptr<Route> r = _route.lock ();
-       return (r && r->muted()) ? GAIN_COEFF_UNITY : GAIN_COEFF_ZERO;
-}
-
 void
 Route::set_block_size (pframes_t nframes)
 {
@@ -3887,17 +4230,33 @@ Route::shift (framepos_t pos, framecnt_t frames)
        }
 }
 
+void
+Route::set_plugin_state_dir (boost::weak_ptr<Processor> p, const std::string& d)
+{
+       boost::shared_ptr<Processor> processor (p.lock ());
+       boost::shared_ptr<PluginInsert> pi  = boost::dynamic_pointer_cast<PluginInsert> (processor);
+       if (!pi) {
+               return;
+       }
+       pi->set_state_dir (d);
+}
 
 int
 Route::save_as_template (const string& path, const string& name)
 {
+       std::string state_dir = path.substr (0, path.find_last_of ('.')); // strip template_suffix
+       PBD::Unwinder<std::string> uw (_session._template_state_dir, state_dir);
+
        XMLNode& node (state (false));
+
        XMLTree tree;
 
        IO::set_name_in_state (*node.children().front(), name);
 
        tree.set_root (&node);
-       return tree.write (path.c_str());
+
+       /* return zero on success, non-zero otherwise */
+       return !tree.write (path.c_str());
 }
 
 
@@ -3938,13 +4297,13 @@ Route::set_name (const string& str)
  *  @param name New name.
  */
 void
-Route::set_name_in_state (XMLNode& node, string const & name)
+Route::set_name_in_state (XMLNode& node, string const & name, bool rename_playlist)
 {
        node.add_property (X_("name"), name);
 
        XMLNodeList children = node.children();
        for (XMLNodeIterator i = children.begin(); i != children.end(); ++i) {
-               
+
                if ((*i)->name() == X_("IO")) {
 
                        IO::set_name_in_state (**i, name);
@@ -3955,12 +4314,14 @@ Route::set_name_in_state (XMLNode& node, string const & name)
                        if (role && role->value() == X_("Main")) {
                                (*i)->add_property (X_("name"), name);
                        }
-                       
+
                } else if ((*i)->name() == X_("Diskstream")) {
 
-                       (*i)->add_property (X_("playlist"), string_compose ("%1.1", name).c_str());
+                       if (rename_playlist) {
+                               (*i)->add_property (X_("playlist"), string_compose ("%1.1", name).c_str());
+                       }
                        (*i)->add_property (X_("name"), name);
-                       
+
                }
        }
 }
@@ -3992,6 +4353,7 @@ Route::set_phase_invert (uint32_t c, bool yn)
        if (_phase_invert[c] != yn) {
                _phase_invert[c] = yn;
                phase_invert_changed (); /* EMIT SIGNAL */
+               _phase_control->Changed(); /* EMIT SIGNAL */
                _session.set_dirty ();
        }
 }
@@ -4073,10 +4435,26 @@ Route::panner_shell() const
        return _main_outs->panner_shell();
 }
 
-boost::shared_ptr<AutomationControl>
+boost::shared_ptr<GainControl>
 Route::gain_control() const
 {
-       return _amp->gain_control();
+       return _gain_control;
+}
+
+boost::shared_ptr<GainControl>
+Route::trim_control() const
+{
+       return _trim_control;
+}
+
+boost::shared_ptr<Route::PhaseControllable>
+Route::phase_control() const
+{
+       if (phase_invert().size()) {
+               return _phase_control;
+       } else {
+               return boost::shared_ptr<PhaseControllable>();
+       }
 }
 
 boost::shared_ptr<AutomationControl>
@@ -4110,10 +4488,10 @@ Route::get_control (const Evoral::Parameter& param)
 }
 
 boost::shared_ptr<Processor>
-Route::nth_plugin (uint32_t n)
+Route::nth_plugin (uint32_t n) const
 {
        Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
-       ProcessorList::iterator i;
+       ProcessorList::const_iterator i;
 
        for (i = _processors.begin(); i != _processors.end(); ++i) {
                if (boost::dynamic_pointer_cast<PluginInsert> (*i)) {
@@ -4127,13 +4505,21 @@ Route::nth_plugin (uint32_t n)
 }
 
 boost::shared_ptr<Processor>
-Route::nth_send (uint32_t n)
+Route::nth_send (uint32_t n) const
 {
        Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
-       ProcessorList::iterator i;
+       ProcessorList::const_iterator i;
 
        for (i = _processors.begin(); i != _processors.end(); ++i) {
                if (boost::dynamic_pointer_cast<Send> (*i)) {
+
+                       if ((*i)->name().find (_("Monitor")) == 0) {
+                               /* send to monitor section is not considered
+                                  to be an accessible send.
+                               */
+                               continue;
+                       }
+
                        if (n-- == 0) {
                                return *i;
                        }
@@ -4215,6 +4601,11 @@ Route::unknown_processors () const
 {
        list<string> p;
 
+       if (_session.get_disable_all_loaded_plugins ()) {
+               // Do not list "missing plugins" if they are explicitly disabled
+               return p;
+       }
+
        Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
        for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
                if (boost::dynamic_pointer_cast<UnknownProcessor const> (*i)) {
@@ -4241,17 +4632,17 @@ Route::update_port_latencies (PortSet& from, PortSet& to, bool playback, framecn
        } else {
                all_connections.min = ~((pframes_t) 0);
                all_connections.max = 0;
-               
+
                /* iterate over all "from" ports and determine the latency range for all of their
                   connections to the "outside" (outside of this Route).
                */
-               
+
                for (PortSet::iterator p = from.begin(); p != from.end(); ++p) {
-                       
+
                        LatencyRange range;
-                       
+
                        p->get_connected_latency_range (range, playback);
-                       
+
                        all_connections.min = min (all_connections.min, range.min);
                        all_connections.max = max (all_connections.max, range.max);
                }
@@ -4354,7 +4745,7 @@ Route::setup_invisible_processors ()
 
        /* we'll build this new list here and then use it
         *
-        * TODO put the ProcessorList is on the stack for RT-safety. 
+        * TODO put the ProcessorList is on the stack for RT-safety.
         */
 
        ProcessorList new_processors;
@@ -4435,34 +4826,29 @@ Route::setup_invisible_processors ()
 
        if (_monitor_send && !is_monitor ()) {
                assert (!_monitor_send->display_to_user ());
-               if (Config->get_solo_control_is_listen_control()) {
-                       switch (Config->get_listen_position ()) {
-                       case PreFaderListen:
-                               switch (Config->get_pfl_position ()) {
-                               case PFLFromBeforeProcessors:
-                                       new_processors.push_front (_monitor_send);
-                                       break;
-                               case PFLFromAfterProcessors:
-                                       new_processors.insert (amp, _monitor_send);
-                                       break;
-                               }
-                               _monitor_send->set_can_pan (false);
+               switch (Config->get_listen_position ()) {
+               case PreFaderListen:
+                       switch (Config->get_pfl_position ()) {
+                       case PFLFromBeforeProcessors:
+                               new_processors.push_front (_monitor_send);
                                break;
-                       case AfterFaderListen:
-                               switch (Config->get_afl_position ()) {
-                               case AFLFromBeforeProcessors:
-                                       new_processors.insert (after_amp, _monitor_send);
-                                       break;
-                               case AFLFromAfterProcessors:
-                                       new_processors.insert (new_processors.end(), _monitor_send);
-                                       break;
-                               }
-                               _monitor_send->set_can_pan (true);
+                       case PFLFromAfterProcessors:
+                               new_processors.insert (amp, _monitor_send);
                                break;
                        }
-               }  else {
-                       new_processors.insert (new_processors.end(), _monitor_send);
                        _monitor_send->set_can_pan (false);
+                       break;
+               case AfterFaderListen:
+                       switch (Config->get_afl_position ()) {
+                       case AFLFromBeforeProcessors:
+                               new_processors.insert (after_amp, _monitor_send);
+                               break;
+                       case AFLFromAfterProcessors:
+                               new_processors.insert (new_processors.end(), _monitor_send);
+                               break;
+                       }
+                       _monitor_send->set_can_pan (true);
+                       break;
                }
        }
 
@@ -4476,7 +4862,7 @@ Route::setup_invisible_processors ()
 
        if (_monitor_control && is_monitor ()) {
                assert (!_monitor_control->display_to_user ());
-               new_processors.push_front (_monitor_control);
+               new_processors.insert (amp, _monitor_control);
        }
 
        /* INTERNAL RETURN */
@@ -4503,6 +4889,12 @@ Route::setup_invisible_processors ()
 
        _processors = new_processors;
 
+       for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
+               if (!(*i)->display_to_user () && !(*i)->active () && (*i) != _monitor_send) {
+                       (*i)->activate ();
+               }
+       }
+
        DEBUG_TRACE (DEBUG::Processors, string_compose ("%1: setup_invisible_processors\n", _name));
        for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
                DEBUG_TRACE (DEBUG::Processors, string_compose ("\t%1\n", (*i)->name ()));
@@ -4538,7 +4930,7 @@ Route::maybe_note_meter_position ()
        if (_meter_point != MeterCustom) {
                return;
        }
-       
+
        _custom_meter_position_noted = true;
        /* custom meter points range from after trim to before panner/main_outs
         * this is a limitation by the current processor UI
@@ -4607,7 +4999,7 @@ Route::has_external_redirects () const
                /* ignore inactive processors and obviously ignore the main
                 * outs since everything has them and we don't care.
                 */
-                
+
                if ((*i)->active() && (*i) != _main_outs && (*i)->does_routing()) {
                        return true;;
                }
@@ -4653,11 +5045,12 @@ Route::non_realtime_locate (framepos_t pos)
        {
                //Glib::Threads::Mutex::Lock lx (AudioEngine::instance()->process_lock ());
                Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
-               
+
                for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
                        (*i)->transport_located (pos);
                }
        }
+       _roll_delay = _initial_delay;
 }
 
 void
@@ -4665,9 +5058,9 @@ Route::fill_buffers_with_input (BufferSet& bufs, boost::shared_ptr<IO> io, pfram
 {
        size_t n_buffers;
        size_t i;
-       
-       /* MIDI 
-        *  
+
+       /* MIDI
+        *
         * We don't currently mix MIDI input together, so we don't need the
         * complex logic of the audio case.
         */
@@ -4678,7 +5071,7 @@ Route::fill_buffers_with_input (BufferSet& bufs, boost::shared_ptr<IO> io, pfram
 
                boost::shared_ptr<MidiPort> source_port = io->midi (i);
                MidiBuffer& buf (bufs.get_midi (i));
-               
+
                if (source_port) {
                        buf.copy (source_port->get_midi_buffer(nframes));
                } else {
@@ -4696,19 +5089,19 @@ Route::fill_buffers_with_input (BufferSet& bufs, boost::shared_ptr<IO> io, pfram
        if (n_ports > n_buffers) {
                scaling = ((float) n_buffers) / n_ports;
        }
-       
+
        for (i = 0; i < n_ports; ++i) {
-               
+
                /* if there are more ports than buffers, map them onto buffers
                 * in a round-robin fashion
                 */
 
                boost::shared_ptr<AudioPort> source_port = io->audio (i);
                AudioBuffer& buf (bufs.get_audio (i%n_buffers));
-                       
+
 
                if (i < n_buffers) {
-                       
+
                        /* first time through just copy a channel into
                           the output buffer.
                        */
@@ -4718,11 +5111,11 @@ Route::fill_buffers_with_input (BufferSet& bufs, boost::shared_ptr<IO> io, pfram
                        if (scaling != 1.0f) {
                                buf.apply_gain (scaling, nframes);
                        }
-                       
+
                } else {
-                       
+
                        /* on subsequent times around, merge data from
-                        * the port with what is already there 
+                        * the port with what is already there
                         */
 
                        if (scaling != 1.0f) {
@@ -4749,3 +5142,452 @@ Route::fill_buffers_with_input (BufferSet& bufs, boost::shared_ptr<IO> io, pfram
                bufs.set_count (io->n_ports());
        }
 }
+
+boost::shared_ptr<AutomationControl>
+Route::pan_azimuth_control() const
+{
+#ifdef MIXBUS
+       boost::shared_ptr<ARDOUR::PluginInsert> plug = ch_post();
+       if (!plug) {
+               return boost::shared_ptr<AutomationControl>();
+       }
+       const uint32_t port_channel_post_pan = 2; // gtk2_ardour/mixbus_ports.h
+       return boost::dynamic_pointer_cast<ARDOUR::AutomationControl> (plug->control (Evoral::Parameter (ARDOUR::PluginAutomation, 0, port_channel_post_pan)));
+#else
+       if (!_pannable || !panner()) {
+               return boost::shared_ptr<AutomationControl>();
+       }
+       return _pannable->pan_azimuth_control;
+#endif
+}
+
+boost::shared_ptr<AutomationControl>
+Route::pan_elevation_control() const
+{
+       if (Profile->get_mixbus() || !_pannable || !panner()) {
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       set<Evoral::Parameter> c = panner()->what_can_be_automated ();
+
+       if (c.find (PanElevationAutomation) != c.end()) {
+               return _pannable->pan_elevation_control;
+       } else {
+               return boost::shared_ptr<AutomationControl>();
+       }
+}
+boost::shared_ptr<AutomationControl>
+Route::pan_width_control() const
+{
+       if (Profile->get_mixbus() || !_pannable || !panner()) {
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       set<Evoral::Parameter> c = panner()->what_can_be_automated ();
+
+       if (c.find (PanWidthAutomation) != c.end()) {
+               return _pannable->pan_width_control;
+       } else {
+               return boost::shared_ptr<AutomationControl>();
+       }
+}
+boost::shared_ptr<AutomationControl>
+Route::pan_frontback_control() const
+{
+       if (Profile->get_mixbus() || !_pannable || !panner()) {
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       set<Evoral::Parameter> c = panner()->what_can_be_automated ();
+
+       if (c.find (PanFrontBackAutomation) != c.end()) {
+               return _pannable->pan_frontback_control;
+       } else {
+               return boost::shared_ptr<AutomationControl>();
+       }
+}
+boost::shared_ptr<AutomationControl>
+Route::pan_lfe_control() const
+{
+       if (Profile->get_mixbus() || !_pannable || !panner()) {
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       set<Evoral::Parameter> c = panner()->what_can_be_automated ();
+
+       if (c.find (PanLFEAutomation) != c.end()) {
+               return _pannable->pan_lfe_control;
+       } else {
+               return boost::shared_ptr<AutomationControl>();
+       }
+}
+
+uint32_t
+Route::eq_band_cnt () const
+{
+       if (Profile->get_mixbus()) {
+               return 3;
+       } else {
+               /* Ardour has no well-known EQ object */
+               return 0;
+       }
+}
+
+boost::shared_ptr<AutomationControl>
+Route::eq_gain_controllable (uint32_t band) const
+{
+#ifdef MIXBUS
+       boost::shared_ptr<PluginInsert> eq = ch_eq();
+
+       if (!eq) {
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       uint32_t port_number;
+       switch (band) {
+       case 0:
+               if (is_master() || mixbus()) {
+                       port_number = 4;
+               } else {
+                       port_number = 8;
+               }
+               break;
+       case 1:
+               if (is_master() || mixbus()) {
+                       port_number = 3;
+               } else {
+                       port_number = 6;
+               }
+               break;
+       case 2:
+               if (is_master() || mixbus()) {
+                       port_number = 2;
+               } else {
+                       port_number = 4;
+               }
+               break;
+       default:
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       return boost::dynamic_pointer_cast<ARDOUR::AutomationControl> (eq->control (Evoral::Parameter (ARDOUR::PluginAutomation, 0, port_number)));
+#else
+       return boost::shared_ptr<AutomationControl>();
+#endif
+}
+boost::shared_ptr<AutomationControl>
+Route::eq_freq_controllable (uint32_t band) const
+{
+#ifdef MIXBUS
+
+       if (mixbus() || is_master()) {
+               /* no frequency controls for mixbusses or master */
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       boost::shared_ptr<PluginInsert> eq = ch_eq();
+
+       if (!eq) {
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       uint32_t port_number;
+       switch (band) {
+       case 0:
+               port_number = 7;
+               break;
+       case 1:
+               port_number = 5;
+               break;
+       case 2:
+               port_number = 3;
+               break;
+       default:
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       return boost::dynamic_pointer_cast<ARDOUR::AutomationControl> (eq->control (Evoral::Parameter (ARDOUR::PluginAutomation, 0, port_number)));
+#else
+       return boost::shared_ptr<AutomationControl>();
+#endif
+}
+
+boost::shared_ptr<AutomationControl>
+Route::eq_q_controllable (uint32_t band) const
+{
+       return boost::shared_ptr<AutomationControl>();
+}
+
+boost::shared_ptr<AutomationControl>
+Route::eq_shape_controllable (uint32_t band) const
+{
+       return boost::shared_ptr<AutomationControl>();
+}
+
+boost::shared_ptr<AutomationControl>
+Route::eq_enable_controllable () const
+{
+#ifdef MIXBUS
+       boost::shared_ptr<PluginInsert> eq = ch_eq();
+
+       if (!eq) {
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       return boost::dynamic_pointer_cast<ARDOUR::AutomationControl> (eq->control (Evoral::Parameter (ARDOUR::PluginAutomation, 0, 1)));
+#else
+       return boost::shared_ptr<AutomationControl>();
+#endif
+}
+
+boost::shared_ptr<AutomationControl>
+Route::eq_hpf_controllable () const
+{
+#ifdef MIXBUS
+       boost::shared_ptr<PluginInsert> eq = ch_eq();
+
+       if (!eq) {
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       return boost::dynamic_pointer_cast<ARDOUR::AutomationControl> (eq->control (Evoral::Parameter (ARDOUR::PluginAutomation, 0, 2)));
+#else
+       return boost::shared_ptr<AutomationControl>();
+#endif
+}
+
+string
+Route::eq_band_name (uint32_t band) const
+{
+       if (Profile->get_mixbus()) {
+               switch (band) {
+               case 0:
+                       return _("lo");
+               case 1:
+                       return _("mid");
+               case 2:
+                       return _("hi");
+               default:
+                       return string();
+               }
+       } else {
+               return string ();
+       }
+}
+
+boost::shared_ptr<AutomationControl>
+Route::comp_enable_controllable () const
+{
+#ifdef MIXBUS
+       boost::shared_ptr<PluginInsert> comp = ch_comp();
+
+       if (!comp) {
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       return boost::dynamic_pointer_cast<ARDOUR::AutomationControl> (comp->control (Evoral::Parameter (ARDOUR::PluginAutomation, 0, 1)));
+#else
+       return boost::shared_ptr<AutomationControl>();
+#endif
+}
+boost::shared_ptr<AutomationControl>
+Route::comp_threshold_controllable () const
+{
+#ifdef MIXBUS
+       boost::shared_ptr<PluginInsert> comp = ch_comp();
+
+       if (!comp) {
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       return boost::dynamic_pointer_cast<ARDOUR::AutomationControl> (comp->control (Evoral::Parameter (ARDOUR::PluginAutomation, 0, 2)));
+
+#else
+       return boost::shared_ptr<AutomationControl>();
+#endif
+}
+boost::shared_ptr<AutomationControl>
+Route::comp_speed_controllable () const
+{
+#ifdef MIXBUS
+       boost::shared_ptr<PluginInsert> comp = ch_comp();
+
+       if (!comp) {
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       return boost::dynamic_pointer_cast<ARDOUR::AutomationControl> (comp->control (Evoral::Parameter (ARDOUR::PluginAutomation, 0, 3)));
+#else
+       return boost::shared_ptr<AutomationControl>();
+#endif
+}
+boost::shared_ptr<AutomationControl>
+Route::comp_mode_controllable () const
+{
+#ifdef MIXBUS
+       boost::shared_ptr<PluginInsert> comp = ch_comp();
+
+       if (!comp) {
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       return boost::dynamic_pointer_cast<ARDOUR::AutomationControl> (comp->control (Evoral::Parameter (ARDOUR::PluginAutomation, 0, 4)));
+#else
+       return boost::shared_ptr<AutomationControl>();
+#endif
+}
+boost::shared_ptr<AutomationControl>
+Route::comp_makeup_controllable () const
+{
+#ifdef MIXBUS
+       boost::shared_ptr<PluginInsert> comp = ch_comp();
+
+       if (!comp) {
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       return boost::dynamic_pointer_cast<ARDOUR::AutomationControl> (comp->control (Evoral::Parameter (ARDOUR::PluginAutomation, 0, 5)));
+#else
+       return boost::shared_ptr<AutomationControl>();
+#endif
+}
+boost::shared_ptr<AutomationControl>
+Route::comp_redux_controllable () const
+{
+#ifdef MIXBUS
+       boost::shared_ptr<PluginInsert> comp = ch_comp();
+
+       if (!comp) {
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       return boost::dynamic_pointer_cast<ARDOUR::AutomationControl> (comp->control (Evoral::Parameter (ARDOUR::PluginAutomation, 0, 6)));
+#else
+       return boost::shared_ptr<AutomationControl>();
+#endif
+}
+
+string
+Route::comp_mode_name (uint32_t mode) const
+{
+#ifdef MIXBUS
+       switch (mode) {
+       case 0:
+               return _("Leveler");
+       case 1:
+               return _("Compressor");
+       case 2:
+               return _("Limiter");
+       case 3:
+               return mixbus() ? _("Sidechain") : _("Limiter");
+       }
+
+       return _("???");
+#else
+       return _("???");
+#endif
+}
+
+string
+Route::comp_speed_name (uint32_t mode) const
+{
+#ifdef MIXBUS
+       switch (mode) {
+       case 0:
+               return _("Attk");
+       case 1:
+               return _("Ratio");
+       case 2:
+       case 3:
+               return _("Rels");
+       }
+       return _("???");
+#else
+       return _("???");
+#endif
+}
+
+boost::shared_ptr<AutomationControl>
+Route::send_level_controllable (uint32_t n) const
+{
+#ifdef  MIXBUS
+       boost::shared_ptr<ARDOUR::PluginInsert> plug = ch_post();
+       if (!plug) {
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       if (n >= 8) {
+               /* no such bus */
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       const uint32_t port_id = port_channel_post_aux1_level + (2*n); // gtk2_ardour/mixbus_ports.h
+       return boost::dynamic_pointer_cast<ARDOUR::AutomationControl> (plug->control (Evoral::Parameter (ARDOUR::PluginAutomation, 0, port_id)));
+#else
+       boost::shared_ptr<Send> s = boost::dynamic_pointer_cast<Send>(nth_send (n));
+       if (!s) {
+               return boost::shared_ptr<AutomationControl>();
+       }
+       return s->gain_control ();
+#endif
+}
+
+boost::shared_ptr<AutomationControl>
+Route::send_enable_controllable (uint32_t n) const
+{
+#ifdef  MIXBUS
+       boost::shared_ptr<ARDOUR::PluginInsert> plug = ch_post();
+       if (!plug) {
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       if (n >= 8) {
+               /* no such bus */
+               return boost::shared_ptr<AutomationControl>();
+       }
+
+       const uint32_t port_id = port_channel_post_aux1_asgn + (2*n); // gtk2_ardour/mixbus_ports.h
+       return boost::dynamic_pointer_cast<ARDOUR::AutomationControl> (plug->control (Evoral::Parameter (ARDOUR::PluginAutomation, 0, port_id)));
+#else
+       /* although Ardour sends have enable/disable as part of the Processor
+          API, it is not exposed as a controllable.
+
+          XXX: we should fix this.
+       */
+       return boost::shared_ptr<AutomationControl>();
+#endif
+}
+
+string
+Route::send_name (uint32_t n) const
+{
+#ifdef MIXBUS
+       if (n >= 8) {
+               return string();
+       }
+       boost::shared_ptr<Route> r = _session.get_mixbus (n);
+       assert (r);
+       return r->name();
+#else
+       boost::shared_ptr<Processor> p = nth_send (n);
+       if (p) {
+               return p->name();
+       } else {
+               return string();
+       }
+#endif
+}
+
+boost::shared_ptr<AutomationControl>
+Route::master_send_enable_controllable () const
+{
+#ifdef  MIXBUS
+       boost::shared_ptr<ARDOUR::PluginInsert> plug = ch_post();
+       if (!plug) {
+               return boost::shared_ptr<AutomationControl>();
+       }
+       return boost::dynamic_pointer_cast<ARDOUR::AutomationControl> (plug->control (Evoral::Parameter (ARDOUR::PluginAutomation, 0, port_channel_post_mstr_assign)));
+#else
+       return boost::shared_ptr<AutomationControl>();
+#endif
+}