+#ifndef NDEBUG
+ Glib::RWLock::WriterLock lm (_processor_lock, Glib::TRY_LOCK);
+ assert (!lm.locked ());
+#endif
+
+ if (!_main_outs) {
+ /* too early to be doing this stuff */
+ return;
+ }
+
+ /* we'll build this new list here and then use it */
+
+ ProcessorList new_processors;
+
+ /* find visible processors */
+
+ for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
+ if ((*i)->display_to_user ()) {
+ new_processors.push_back (*i);
+ }
+ }
+
+ /* find the amp */
+
+ ProcessorList::iterator amp = new_processors.begin ();
+ while (amp != new_processors.end() && boost::dynamic_pointer_cast<Amp> (*amp) == 0) {
+ ++amp;
+ }
+
+ assert (amp != _processors.end ());
+
+ /* and the processor after the amp */
+
+ ProcessorList::iterator after_amp = amp;
+ ++after_amp;
+
+ /* METER */
+
+ if (_meter) {
+ switch (_meter_point) {
+ case MeterInput:
+ assert (!_meter->display_to_user ());
+ new_processors.push_front (_meter);
+ break;
+ case MeterPreFader:
+ assert (!_meter->display_to_user ());
+ new_processors.insert (amp, _meter);
+ break;
+ case MeterPostFader:
+ /* do nothing here */
+ break;
+ case MeterOutput:
+ /* do nothing here */
+ break;
+ case MeterCustom:
+ /* the meter is visible, so we don't touch it here */
+ break;
+ }
+ }
+
+ /* MAIN OUTS */
+
+ assert (_main_outs);
+ assert (!_main_outs->display_to_user ());
+ new_processors.push_back (_main_outs);
+
+ /* iterator for the main outs */
+
+ ProcessorList::iterator main = new_processors.end();
+ --main;
+
+ /* OUTPUT METERING */
+
+ if (_meter && (_meter_point == MeterOutput || _meter_point == MeterPostFader)) {
+ assert (!_meter->display_to_user ());
+
+ /* add the processor just before or just after the main outs */
+
+ ProcessorList::iterator meter_point = main;
+
+ if (_meter_point == MeterOutput) {
+ ++meter_point;
+ }
+ new_processors.insert (meter_point, _meter);
+ }
+
+ /* MONITOR SEND */
+
+ 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;
+ }
+ 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;
+ }
+ break;
+ }
+ } else {
+ new_processors.insert (new_processors.end(), _monitor_send);
+ }
+ }
+
+ /* MONITOR CONTROL */
+
+ if (_monitor_control && is_monitor ()) {
+ assert (!_monitor_control->display_to_user ());
+ new_processors.push_front (_monitor_control);
+ }
+
+ /* INTERNAL RETURN */
+
+ /* doing this here means that any monitor control will come just after
+ the return.
+ */
+
+ if (_intreturn) {
+ assert (!_intreturn->display_to_user ());
+ new_processors.push_front (_intreturn);
+ }
+
+ /* EXPORT PROCESSOR */
+
+ if (_capturing_processor) {
+ assert (!_capturing_processor->display_to_user ());
+ new_processors.push_front (_capturing_processor);
+ }
+
+ _processors = new_processors;
+
+ 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 ()));
+ }