diff options
Diffstat (limited to 'libs/ardour/route.cc')
| -rw-r--r-- | libs/ardour/route.cc | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/libs/ardour/route.cc b/libs/ardour/route.cc index eca399302a..c750ca2719 100644 --- a/libs/ardour/route.cc +++ b/libs/ardour/route.cc @@ -2119,6 +2119,44 @@ Route::apply_processor_order (const ProcessorList& new_order) /* If the meter is in a custom position, find it and make a rough note of its position */ maybe_note_meter_position (); + + /* if any latent plugins were re-ordered and sends or side-chains are present + * in the signal-flow, a full latency-recompute is needed. + * + * The Session will be informed about the new order via + * processors_changed() + * and test if a full latency-recompute is required by comparing + * _signal_latency != ::update_signal_latency(); + * + * Since the route's latency itself does not initially change by + * re-ordering, we need to force this: + */ + bool need_latency_recompute = false; + for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) { + if (boost::shared_ptr<PortInsert> pi = boost::dynamic_pointer_cast<PortInsert> (*i)) { + need_latency_recompute = true; + break; + } else if (boost::shared_ptr<LatentSend> snd = boost::dynamic_pointer_cast<LatentSend> (*i)) { + need_latency_recompute = true; + break; + } else if (boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert> (*i)) { + if (boost::shared_ptr<IO> pio = pi->sidechain_input ()) { + need_latency_recompute = true; + break; + } + } + } + if (need_latency_recompute) { + /* force a change, the correct value will be set + * ::update_signal_latency() will be called via + * + * SIGNAL processors_changed () -> + * -> Session::route_processors_changed () + * -> Session::update_latency_compensation () + * -> Route::::update_signal_latency () + */ + _signal_latency = 0; + } } void |