Move a few declarations to first use.
[ardour.git] / libs / ardour / route.cc
index 1481a1fd1c3936fe2199612816c88cbf70124640..570c07e9f70b545bff620261f0beb33a61d88a78 100644 (file)
@@ -145,6 +145,8 @@ Route::init ()
        _input->changed.connect_same_thread (*this, boost::bind (&Route::input_change_handler, this, _1, _2));
        _input->PortCountChanging.connect_same_thread (*this, boost::bind (&Route::input_port_count_changing, this, _1));
 
+       _output->changed.connect_same_thread (*this, boost::bind (&Route::output_change_handler, this, _1, _2));
+
        /* add amp processor  */
 
        _amp.reset (new Amp (_session));
@@ -511,18 +513,19 @@ Route::process_output_buffers (BufferSet& bufs,
 
        for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
 
-               if (boost::dynamic_pointer_cast<UnknownProcessor> (*i)) {
-                       break;
+               if (meter_already_run && boost::dynamic_pointer_cast<PeakMeter> (*i)) {
+                       /* don't ::run() the meter, otherwise it will have its previous peak corrupted */
+                       continue;
                }
 
-               if (boost::dynamic_pointer_cast<PeakMeter> (*i) && meter_already_run) {
-                       /* don't ::run() the meter, otherwise it will have its previous peak corrupted */
+               if (Config->get_plugins_stop_with_transport() && _session.transport_speed() == 0 && boost::dynamic_pointer_cast<PluginInsert> (*i)) {
+                       /* don't run plugins with the transport stopped, if configured this way */
                        continue;
                }
                
 #ifndef NDEBUG
                /* if it has any inputs, make sure they match */
-               if ((*i)->input_streams() != ChanCount::ZERO) {
+               if (boost::dynamic_pointer_cast<UnknownProcessor> (*i) == 0 && (*i)->input_streams() != ChanCount::ZERO) {
                        if (bufs.count() != (*i)->input_streams()) {
                                cerr << _name << " bufs = " << bufs.count()
                                     << " input for " << (*i)->name() << " = " << (*i)->input_streams()
@@ -871,16 +874,17 @@ dump_processors(const string& name, const list<boost::shared_ptr<Processor> >& p
 }
 #endif
 
-int
-Route::add_processor (boost::shared_ptr<Processor> processor, Placement placement, ProcessorStreams* err, bool activation_allowed)
+/** Supposing that we want to insert a Processor at a given Placement, return
+ *  the processor to add the new one before (or 0 to add at the end).
+ */
+boost::shared_ptr<Processor>
+Route::before_processor_for_placement (Placement p)
 {
-       ProcessorList::iterator loc;
-
-       /* XXX this is not thread safe - we don't hold the lock across determining the iter
-          to add before and actually doing the insertion. dammit.
-       */
+       Glib::RWLock::ReaderLock lm (_processor_lock);
 
-       if (placement == PreFader) {
+       ProcessorList::iterator loc;
+       
+       if (p == PreFader) {
                /* generic pre-fader: insert immediately before the amp */
                loc = find (_processors.begin(), _processors.end(), _amp);
        } else {
@@ -888,24 +892,20 @@ Route::add_processor (boost::shared_ptr<Processor> processor, Placement placemen
                loc = find (_processors.begin(), _processors.end(), _main_outs);
        }
 
-       return add_processor (processor, loc, err, activation_allowed);
+       return loc != _processors.end() ? *loc : boost::shared_ptr<Processor> ();
 }
 
-
-/** Add a processor to a route such that it ends up with a given index into the visible processors.
- *  @param index Index to add the processor at, or -1 to add at the end of the list.
+/** Supposing that we want to insert a Processor at a given index, return
+ *  the processor to add the new one before (or 0 to add at the end).
  */
-
-int
-Route::add_processor_by_index (boost::shared_ptr<Processor> processor, int index, ProcessorStreams* err, bool activation_allowed)
+boost::shared_ptr<Processor>
+Route::before_processor_for_index (int index)
 {
-       /* XXX this is not thread safe - we don't hold the lock across determining the iter
-          to add before and actually doing the insertion. dammit.
-       */
-
        if (index == -1) {
-               return add_processor (processor, _processors.end(), err, activation_allowed);
+               return boost::shared_ptr<Processor> ();
        }
+
+       Glib::RWLock::ReaderLock lm (_processor_lock);
        
        ProcessorList::iterator i = _processors.begin ();
        int j = 0;
@@ -916,15 +916,36 @@ Route::add_processor_by_index (boost::shared_ptr<Processor> processor, int index
                
                ++i;
        }
-       
-       return add_processor (processor, i, err, activation_allowed);
+
+       return (i != _processors.end() ? *i : boost::shared_ptr<Processor> ());
+}
+
+/** Add a processor either pre- or post-fader
+ *  @return 0 on success, non-0 on failure.
+ */
+int
+Route::add_processor (boost::shared_ptr<Processor> processor, Placement placement, ProcessorStreams* err, bool activation_allowed)
+{
+       return add_processor (processor, before_processor_for_placement (placement), err, activation_allowed);
+}
+
+
+/** Add a processor to a route such that it ends up with a given index into the visible processors.
+ *  @param index Index to add the processor at, or -1 to add at the end of the list.
+ *  @return 0 on success, non-0 on failure.
+ */
+int
+Route::add_processor_by_index (boost::shared_ptr<Processor> processor, int index, ProcessorStreams* err, bool activation_allowed)
+{
+       return add_processor (processor, before_processor_for_index (index), err, activation_allowed);
 }
 
 /** Add a processor to the route.
- *  @param iter an iterator in _processors; the new processor will be inserted immediately before this location.
+ *  @param before An existing processor in the list, or 0; the new processor will be inserted immediately before it (or at the end).
+ *  @return 0 on success, non-0 on failure.
  */
 int
-Route::add_processor (boost::shared_ptr<Processor> processor, ProcessorList::iterator iter, ProcessorStreams* err, bool activation_allowed)
+Route::add_processor (boost::shared_ptr<Processor> processor, boost::shared_ptr<Processor> before, ProcessorStreams* err, bool activation_allowed)
 {
        assert (processor != _meter);
        assert (processor != _main_outs);
@@ -943,25 +964,32 @@ Route::add_processor (boost::shared_ptr<Processor> processor, ProcessorList::ite
                boost::shared_ptr<PluginInsert> pi;
                boost::shared_ptr<PortInsert> porti;
 
-               ProcessorList::iterator loc = find(_processors.begin(), _processors.end(), processor);
-
                if (processor == _amp) {
-                       // Ensure only one amp is in the list at any time
-                       if (loc != _processors.end()) {
-                               if (iter == loc) { // Already in place, do nothing
+                       /* Ensure that only one amp is in the list at any time */
+                       ProcessorList::iterator check = find (_processors.begin(), _processors.end(), processor);
+                       if (check != _processors.end()) {
+                               if (before == _amp) {
+                                       /* Already in position; all is well */
                                        return 0;
-                               } else { // New position given, relocate
-                                       _processors.erase (loc);
+                               } else {
+                                       _processors.erase (check);
                                }
                        }
+               }
 
-               } else {
-                       if (loc != _processors.end()) {
-                               cerr << "ERROR: Processor added to route twice!" << endl;
+               assert (find (_processors.begin(), _processors.end(), processor) == _processors.end ());
+
+               ProcessorList::iterator loc;
+               if (before) {
+                       /* inserting before a processor; find it */
+                       loc = find (_processors.begin(), _processors.end(), before);
+                       if (loc == _processors.end ()) {
+                               /* Not found */
                                return 1;
                        }
-
-                       loc = iter;
+               } else {
+                       /* inserting at end */
+                       loc = _processors.end ();
                }
 
                _processors.insert (loc, processor);
@@ -1873,6 +1901,24 @@ 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 
+                          aux sends because the chance of the target ID
+                          in the session where this template is used
+                          is not very likely.
+
+                          similarly, do not save listen sends which connect to
+                          the monitor section, because these will always be
+                          added if necessary.
+                       */
+                       boost::shared_ptr<InternalSend> is;
+
+                       if ((is = boost::dynamic_pointer_cast<InternalSend> (*i)) != 0) {
+                               if (is->role() == Delivery::Aux || is->role() == Delivery::Listen) {
+                                       continue;
+                               }
+                       }
+               }
                node->add_child_nocopy((*i)->state (full_state));
        }
 
@@ -2565,6 +2611,7 @@ Route::add_send_to_internal_return (InternalSend* send)
 void
 Route::remove_send_from_internal_return (InternalSend* send)
 {
+       Glib::Mutex::Lock lm (AudioEngine::instance()->process_lock ());
        Glib::RWLock::ReaderLock rm (_processor_lock);
 
        for (ProcessorList::const_iterator x = _processors.begin(); x != _processors.end(); ++x) {
@@ -2597,10 +2644,10 @@ Route::enable_monitor_send ()
 
 /** Add an aux send to a route.
  *  @param route route to send to.
- *  @param placement placement for the send.
+ *  @param before Processor to insert before, or 0 to insert at the end.
  */
 int
-Route::add_aux_send (boost::shared_ptr<Route> route, Placement placement)
+Route::add_aux_send (boost::shared_ptr<Route> route, boost::shared_ptr<Processor> before)
 {
        assert (route != _session.monitor_out ());
 
@@ -2627,7 +2674,7 @@ Route::add_aux_send (boost::shared_ptr<Route> route, Placement placement)
                        listener.reset (new InternalSend (_session, _pannable, _mute_master, route, Delivery::Aux));
                }
 
-               add_processor (listener, placement);
+               add_processor (listener, before);
 
        } catch (failed_constructor& err) {
                return -1;
@@ -2800,15 +2847,61 @@ Route::nonrealtime_handle_transport_stopped (bool /*abort_ignored*/, bool did_lo
        _roll_delay = _initial_delay;
 }
 
-/** Called with the process lock held if change contains ConfigurationChanged */
 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 
+               */
+               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);
+               }
+       }
+}
+
+void
+Route::output_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 
+               */
+               need_to_queue_solo_change = false;
+       }
+
+       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);
+               }
+       }
+}
+
+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