NO-OP: a ToDo comment for discussion
[ardour.git] / libs / ardour / route.cc
index 2d5857b20220becd00f19838654135249dd84ac6..3b615c517b1a00c12e6d31e65db259b0e0fa69ce 100644 (file)
@@ -57,6 +57,7 @@
 #include "ardour/delayline.h"
 #include "ardour/midi_buffer.h"
 #include "ardour/midi_port.h"
+#include "ardour/midi_track.h"
 #include "ardour/monitor_control.h"
 #include "ardour/monitor_processor.h"
 #include "ardour/pannable.h"
@@ -335,6 +336,10 @@ Route::process_output_buffers (BufferSet& bufs,
         */
        automation_run (start_sample, nframes);
 
+       if (_pannable) {
+               _pannable->automation_run (start_sample + _signal_latency, nframes);
+       }
+
        /* figure out if we're going to use gain automation */
        if (gain_automation_ok) {
                _amp->set_gain_automation_buffer (_session.gain_automation_buffer ());
@@ -474,27 +479,6 @@ Route::process_output_buffers (BufferSet& bufs,
                }
 #endif
 
-               if (boost::dynamic_pointer_cast<PluginInsert>(*i) != 0) {
-                       /* set potential sidechain ports, capture and playback latency.
-                        * This effectively sets jack port latency which should include
-                        * up/downstream latencies.
-                        *
-                        * However, the value is not used by Ardour (2017-09-20) and calling
-                        * IO::latency() is expensive, so we punt.
-                        *
-                        * capture should be
-                        *      input()->latenct + latency,
-                        * playback should be
-                        *      output->latency() + _signal_latency - latency
-                        *
-                        * Also see note below, _signal_latency may be smaller than latency
-                        * if a plugin's latency increases while it's running.
-                        */
-                       const samplecnt_t playback_latency = std::max ((samplecnt_t)0, _signal_latency - latency);
-                       boost::dynamic_pointer_cast<PluginInsert>(*i)->set_sidechain_latency (
-                                       /* input->latency() + */ latency, /* output->latency() + */ playback_latency);
-               }
-
                bool re_inject_oob_data = false;
                if ((*i) == _disk_reader) {
                        /* Well now, we've made it past the disk-writer and to the disk-reader.
@@ -543,7 +527,7 @@ Route::process_output_buffers (BufferSet& bufs,
 
 #if 0
                if ((*i) == _delayline) {
-                       latency += _delayline->get_delay ();
+                       latency += _delayline->delay ();
                }
 #endif
        }
@@ -3111,6 +3095,9 @@ Route::silence_unlocked (samplecnt_t nframes)
 
        // update owned automated controllables
        automation_run (now, nframes);
+       if (_pannable) {
+               _pannable->automation_run (now, nframes);
+       }
 
        for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
                boost::shared_ptr<PluginInsert> pi;
@@ -3452,7 +3439,6 @@ Route::input_change_handler (IOChange change, void * /*src*/)
                   contains ConfigurationChanged
                */
                configure_processors (0);
-               _phase_control->resize (_input->n_ports().n_audio ());
                io_changed (); /* EMIT SIGNAL */
        }
 
@@ -3990,6 +3976,9 @@ Route::update_signal_latency (bool apply_to_delayline)
        // here or in Session::* ? -> also zero send latencies,
        // and make sure that re-enabling a route updates things again...
 
+       samplecnt_t capt_lat_in = _input->connected_latency (false);
+       samplecnt_t play_lat_out = _output->connected_latency (true);
+
        Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
 
        samplecnt_t l_in  = 0;
@@ -3998,6 +3987,14 @@ Route::update_signal_latency (bool apply_to_delayline)
                if (boost::shared_ptr<Send> snd = boost::dynamic_pointer_cast<Send> (*i)) {
                        snd->set_delay_in (l_out + _output->latency());
                }
+
+               if (boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert> (*i)) {
+                       if (boost::shared_ptr<IO> pio = pi->sidechain_input ()) {
+                               samplecnt_t lat = l_out + _output->latency();
+                               pio->set_private_port_latencies (lat, true);
+                               pio->set_public_port_latencies (lat, true);
+                       }
+               }
                (*i)->set_output_latency (l_out);
                if ((*i)->active ()) {
                        l_out += (*i)->signal_latency ();
@@ -4009,6 +4006,27 @@ Route::update_signal_latency (bool apply_to_delayline)
        _signal_latency = l_out;
 
        for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
+
+               /* set sidechain, send and insert port latencies */
+               if (boost::shared_ptr<PortInsert> pi = boost::dynamic_pointer_cast<PortInsert> (*i)) {
+                       if (pi->input ()) {
+                               /* propagate playback latency from output to input */
+                               pi->input ()->set_private_port_latencies (play_lat_out + l_in, true);
+                       }
+                       if (pi->output ()) {
+                               /* propagate capture latency from input to output */
+                               pi->output ()->set_private_port_latencies (capt_lat_in + l_in, false);
+                       }
+
+               } else if (boost::shared_ptr<Send> snd = boost::dynamic_pointer_cast<Send> (*i)) {
+                       if (snd->output ()) {
+                               /* set capture latency */
+                               snd->output ()->set_private_port_latencies (capt_lat_in + l_in, false);
+                               /* take send-target's playback latency into account */
+                               snd->set_delay_out (snd->output ()->connected_latency (true));
+                       }
+               }
+
                (*i)->set_input_latency (l_in);
                (*i)->set_playback_offset (_signal_latency + _output->latency ());
                (*i)->set_capture_offset (_input->latency ());
@@ -4042,7 +4060,7 @@ void
 Route::apply_latency_compensation ()
 {
        if (_delayline) {
-               samplecnt_t old = _delayline->get_delay ();
+               samplecnt_t old = _delayline->delay ();
 
                samplecnt_t play_lat_in = _input->connected_latency (true);
                samplecnt_t play_lat_out = _output->connected_latency (true);
@@ -4058,7 +4076,7 @@ Route::apply_latency_compensation ()
 
                _delayline->set_delay (latcomp > 0 ? latcomp : 0);
 
-               if (old !=  _delayline->get_delay ()) {
+               if (old !=  _delayline->delay ()) {
                        signal_latency_updated (); /* EMIT SIGNAL */
                }
        }
@@ -4591,6 +4609,7 @@ Route::set_private_port_latencies (bool playback) const
        */
 
        for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
+
                if ((*i)->active ()) {
                        own_latency += (*i)->signal_latency ();
                }
@@ -4608,28 +4627,26 @@ Route::set_private_port_latencies (bool playback) const
 void
 Route::set_public_port_latencies (samplecnt_t value, bool playback) const
 {
-       /* this is called to set the JACK-visible port latencies, which take
-          latency compensation into account.
-       */
-
-       LatencyRange range;
-
-       range.min = value;
-       range.max = value;
-
-       {
-               const PortSet& ports (_input->ports());
-               for (PortSet::const_iterator p = ports.begin(); p != ports.end(); ++p) {
-                       p->set_public_latency_range (range, playback);
+       /* publish private latencies */
+       Glib::Threads::RWLock::ReaderLock lm (_processor_lock);
+       for (ProcessorList::const_iterator i = _processors.begin(); i != _processors.end(); ++i) {
+               boost::shared_ptr<IOProcessor> iop = boost::dynamic_pointer_cast<IOProcessor>(*i);
+               if (!iop) {
+                       continue;
                }
-       }
-
-       {
-               const PortSet& ports (_output->ports());
-               for (PortSet::const_iterator p = ports.begin(); p != ports.end(); ++p) {
-                       p->set_public_latency_range (range, playback);
+               if (iop->input ()) {
+                       iop->input ()->set_public_port_latencies (iop->input()->latency(), true);
+               }
+               if (iop->output ()) {
+                       iop->output ()->set_public_port_latencies (iop->output()->latency(), false);
                }
        }
+
+       /* this is called to set the JACK-visible port latencies, which take
+        * latency compensation into account.
+        */
+       _input->set_public_port_latencies (value, playback);
+       _output->set_public_port_latencies (value, playback);
 }
 
 /** Put the invisible processors in the right place in _processors.
@@ -5025,7 +5042,11 @@ Route::the_instrument_unlocked () const
        return boost::shared_ptr<Processor>();
 }
 
-
+bool
+Route::is_track()
+{
+       return dynamic_cast<Track*>(this) != 0;
+}
 
 void
 Route::non_realtime_locate (samplepos_t pos)
@@ -5987,67 +6008,6 @@ Route::monitoring_state () const
                        break;
        }
 
-       /* This is an implementation of the truth table in doc/monitor_modes.pdf;
-          I don't think it's ever going to be too pretty too look at.
-       */
-
-       bool const roll = _session.transport_rolling ();
-       bool const track_rec = _disk_writer->record_enabled ();
-       bool const auto_input = _session.config.get_auto_input ();
-       bool const software_monitor = Config->get_monitoring_model() == SoftwareMonitoring;
-       bool const tape_machine_mode = Config->get_tape_machine_mode ();
-       bool session_rec;
-
-       /* I suspect that just use actively_recording() is good enough all the
-        * time, but just to keep the semantics the same as they were before
-        * sept 26th 2012, we differentiate between the cases where punch is
-        * enabled and those where it is not.
-        *
-        * rg: sept 30 2017: Above is not the case: punch-in/out location is
-        * global session playhead position.
-        * When this method is called from process_output_buffers() we need
-        * to use delay-compensated route's process-position.
-        *
-        * NB. Disk reader/writer may also be offset by a same amount of time.
-        *
-        * Also keep in mind that _session.transport_rolling() is false during
-        * pre-roll but the disk already produces output.
-        *
-        * TODO: FIXME
-        */
-
-       if (_session.config.get_punch_in() || _session.config.get_punch_out()) {
-               session_rec = _session.actively_recording ();
-       } else {
-               session_rec = _session.get_record_enabled();
-       }
-
-       if (track_rec) {
-
-               if (!session_rec && roll && auto_input) {
-                       return MonitoringDisk;
-               } else {
-                       return software_monitor ? MonitoringInput : MonitoringSilence;
-               }
-
-       } else {
-
-               if (tape_machine_mode) {
-
-                       return MonitoringDisk;
-
-               } else {
-
-                       if (!roll && auto_input) {
-                               return software_monitor ? MonitoringInput : MonitoringSilence;
-                       } else {
-                               return MonitoringDisk;
-                       }
-
-               }
-       }
-
-       abort(); /* NOTREACHED */
-       return MonitoringSilence;
+       return get_auto_monitoring_state();
 }
 #endif