(1) push a locate all the way through the processing heirarchy so that MIDI output...
[ardour.git] / libs / ardour / session_transport.cc
index 26a4592f0ee2a3c870d8b9c1c226aad80010fc8e..48b84c492c84ff50ffc1ecc65f3d8538a58cfdc5 100644 (file)
@@ -222,14 +222,14 @@ Session::realtime_stop (bool abort, bool clear_state)
                   past that point to pick up delayed input (and/or to delick)
                */
 
-                if (worst_playback_latency() > current_block_size) {
-                        /* we rolled past the stop point to pick up data that had
-                           not yet arrived. move back to where the stop occured.
-                        */
-                        decrement_transport_position (current_block_size + (worst_playback_latency() - current_block_size));
-                } else {
-                        decrement_transport_position (current_block_size);
-                }
+               if (worst_playback_latency() > current_block_size) {
+                       /* we rolled past the stop point to pick up data that had
+                          not yet arrived. move back to where the stop occured.
+                       */
+                       decrement_transport_position (current_block_size + (worst_input_latency() - current_block_size));
+               } else {
+                       decrement_transport_position (current_block_size);
+               }
 
                /* the duration change is not guaranteed to have happened, but is likely */
 
@@ -252,9 +252,9 @@ Session::realtime_stop (bool abort, bool clear_state)
        _clear_event_type (SessionEvent::RangeStop);
        _clear_event_type (SessionEvent::RangeLocate);
 
-        /* if we're going to clear loop state, then force disabling record BUT only if we're not doing latched rec-enable */
+       /* if we're going to clear loop state, then force disabling record BUT only if we're not doing latched rec-enable */
        disable_record (true, (!Config->get_latched_record_enable() && clear_state));
-        
+
        reset_slave_state ();
 
        _transport_speed = 0;
@@ -270,6 +270,15 @@ Session::realtime_stop (bool abort, bool clear_state)
        transport_sub_state = 0;
 }
 
+void
+Session::realtime_locate ()
+{
+       boost::shared_ptr<RouteList> r = routes.reader ();
+       for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
+               (*i)->realtime_locate ();
+       }
+}
+
 void
 Session::butler_transport_work ()
 {
@@ -284,26 +293,26 @@ Session::butler_transport_work ()
 
        DEBUG_TRACE (DEBUG::Transport, string_compose ("Butler transport work, todo = %1\n", enum_2_string (ptw)));
 
-        if (ptw & PostTransportAdjustPlaybackBuffering) {
+       if (ptw & PostTransportAdjustPlaybackBuffering) {
                for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
                        boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
                        if (tr) {
                                tr->adjust_playback_buffering ();
-                                /* and refill those buffers ... */
-                                tr->non_realtime_locate (_transport_frame);
+                               /* and refill those buffers ... */
+                               tr->non_realtime_locate (_transport_frame);
                        }
                }
-                
-        }
 
-        if (ptw & PostTransportAdjustCaptureBuffering) {
+       }
+
+       if (ptw & PostTransportAdjustCaptureBuffering) {
                for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
                        boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
                        if (tr) {
                                tr->adjust_capture_buffering ();
                        }
                }
-        }
+       }
 
        if (ptw & PostTransportCurveRealloc) {
                for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
@@ -460,11 +469,11 @@ Session::non_realtime_stop (bool abort, int on_entry, bool& finished)
 
        DEBUG_TRACE (DEBUG::Transport, X_("Butler PTW: DS stop\n"));
 
-        if (abort && did_record) {
-                /* no reason to save the session file when we remove sources
-                 */
-                _state_of_the_state = StateOfTheState (_state_of_the_state|InCleanup);
-        }
+       if (abort && did_record) {
+               /* no reason to save the session file when we remove sources
+                */
+               _state_of_the_state = StateOfTheState (_state_of_the_state|InCleanup);
+       }
 
        for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) {
                boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
@@ -473,9 +482,9 @@ Session::non_realtime_stop (bool abort, int on_entry, bool& finished)
                }
        }
 
-        if (abort && did_record) {
-                _state_of_the_state = StateOfTheState (_state_of_the_state & ~InCleanup);                
-        }
+       if (abort && did_record) {
+               _state_of_the_state = StateOfTheState (_state_of_the_state & ~InCleanup);                
+       }
 
        boost::shared_ptr<RouteList> r = routes.reader ();
 
@@ -490,7 +499,11 @@ Session::non_realtime_stop (bool abort, int on_entry, bool& finished)
        }
 
        if (_engine.running()) {
-               update_latency_compensation (true, abort);
+               PostTransportWork ptw = post_transport_work ();
+               for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
+                       (*i)->nonrealtime_handle_transport_stopped (abort, (ptw & PostTransportLocate), (!(ptw & PostTransportLocate) || pending_locate_flush));
+               }
+               update_latency_compensation ();
        }
 
        bool const auto_return_enabled =
@@ -508,7 +521,7 @@ Session::non_realtime_stop (bool abort, int on_entry, bool& finished)
                if ((auto_return_enabled || synced_to_jack() || _requested_return_frame >= 0) &&
                    !(ptw & PostTransportLocate)) {
 
-                        /* no explicit locate queued */
+                       /* no explicit locate queued */
 
                        bool do_locate = false;
 
@@ -597,10 +610,10 @@ Session::non_realtime_stop (bool abort, int on_entry, bool& finished)
 
        send_full_time_code (_transport_frame);
 
-        if (!dynamic_cast<MTC_Slave*>(_slave)) {
-                MIDI::Manager::instance()->mmc()->send (MIDI::MachineControlCommand (MIDI::MachineControl::cmdStop));
-                send_mmc_locate (_transport_frame);
-        }
+       if (!dynamic_cast<MTC_Slave*>(_slave)) {
+               MIDI::Manager::instance()->mmc()->send (MIDI::MachineControlCommand (MIDI::MachineControl::cmdStop));
+               send_mmc_locate (_transport_frame);
+       }
 
        if ((ptw & PostTransportLocate) && get_record_enabled()) {
                /* capture start has been changed, so save pending state */
@@ -608,9 +621,9 @@ Session::non_realtime_stop (bool abort, int on_entry, bool& finished)
                saved = true;
        }
 
-        /* always try to get rid of this */
+       /* always try to get rid of this */
 
-        remove_pending_capture_state ();
+       remove_pending_capture_state ();
 
        /* save the current state of things if appropriate */
 
@@ -687,8 +700,9 @@ Session::set_play_loop (bool yn)
        }
        
        if (yn && Config->get_seamless_loop() && synced_to_jack()) {
-               warning << string_compose (_("Seamless looping cannot be supported while %1 is using JACK transport.\n"
-                                             "Recommend changing the configured options"), PROGRAM_NAME)
+               warning << string_compose (
+                       _("Seamless looping cannot be supported while %1 is using JACK transport.\n"
+                         "Recommend changing the configured options"), PROGRAM_NAME)
                        << endmsg;
                return;
        }
@@ -838,8 +852,20 @@ Session::locate (framepos_t target_frame, bool with_roll, bool with_flush, bool
        outbound_mtc_timecode_frame = _transport_frame;
        next_quarter_frame_to_send = 0;
 
+       /* do "stopped" stuff if:
+        *
+        * we are rolling AND
+        *    no autoplay in effect AND
+         *       we're not going to keep rolling after the locate AND
+         *           !(playing a loop with JACK sync)
+         *
+        */
+                 
        if (transport_rolling() && (!auto_play_legal || !config.get_auto_play()) && !with_roll && !(synced_to_jack() && play_loop)) {
                realtime_stop (false, true); // XXX paul - check if the 2nd arg is really correct
+       } else {
+               /* otherwise tell the world that we located */
+               realtime_locate ();
        }
 
        if (force || !with_loop || loop_changing) {
@@ -872,12 +898,12 @@ Session::locate (framepos_t target_frame, bool with_roll, bool with_flush, bool
        if (with_roll) {
                /* switch from input if we're going to roll */
                if (Config->get_monitoring_model() == HardwareMonitoring) {
-                        set_track_monitor_input_status (!config.get_auto_input());
+                       set_track_monitor_input_status (!config.get_auto_input());
                }
        } else {
                /* otherwise we're going to stop, so do the opposite */
                if (Config->get_monitoring_model() == HardwareMonitoring) {
-                        set_track_monitor_input_status (true);
+                       set_track_monitor_input_status (true);
                }
        }
 
@@ -919,8 +945,8 @@ Session::locate (framepos_t target_frame, bool with_roll, bool with_flush, bool
 }
 
 /** Set the transport speed.
- * @param speed New speed
- * @param abort
+ *  Called from the process thread.
+ *  @param speed New speed
  */
 void
 Session::set_transport_speed (double speed, bool abort, bool clear_state)
@@ -948,7 +974,7 @@ Session::set_transport_speed (double speed, bool abort, bool clear_state)
                /* we are rolling and we want to stop */
 
                if (Config->get_monitoring_model() == HardwareMonitoring) {
-                        set_track_monitor_input_status (true);
+                       set_track_monitor_input_status (true);
                }
 
                if (synced_to_jack ()) {
@@ -971,7 +997,7 @@ Session::set_transport_speed (double speed, bool abort, bool clear_state)
                /* we are stopped and we want to start rolling at speed 1 */
 
                if (Config->get_monitoring_model() == HardwareMonitoring && config.get_auto_input()) {
-                        set_track_monitor_input_status (false);
+                       set_track_monitor_input_status (false);
                }
 
                if (synced_to_jack()) {
@@ -981,10 +1007,13 @@ Session::set_transport_speed (double speed, bool abort, bool clear_state)
                }
 
        } else {
+               
+               /* not zero, not 1.0 ... varispeed */
 
                if ((synced_to_jack()) && speed != 0.0 && speed != 1.0) {
-                       warning << string_compose (_("Global varispeed cannot be supported while %1 is connected to JACK transport control"),
-                                                   PROGRAM_NAME)
+                       warning << string_compose (
+                               _("Global varispeed cannot be supported while %1 is connected to JACK transport control"),
+                               PROGRAM_NAME)
                                << endmsg;
                        return;
                }
@@ -1029,6 +1058,8 @@ Session::set_transport_speed (double speed, bool abort, bool clear_state)
                        add_post_transport_work (todo);
                        _butler->schedule_transport_work ();
                }
+               
+               TransportStateChange (); /* EMIT SIGNAL */
        }
 }
 
@@ -1041,7 +1072,7 @@ Session::stop_transport (bool abort, bool clear_state)
                return;
        }
 
-       if (actively_recording() && !(transport_sub_state & StopPendingCapture) && worst_playback_latency() > current_block_size) {
+       if (actively_recording() && !(transport_sub_state & StopPendingCapture) && worst_input_latency() > current_block_size) {
 
                boost::shared_ptr<RouteList> rl = routes.reader();
                for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) {
@@ -1049,7 +1080,7 @@ Session::stop_transport (bool abort, bool clear_state)
                        if (tr) {
                                tr->prepare_to_stop (_transport_frame);
                        }
-                }
+               }
 
                /* we need to capture the audio that has still not yet been received by the system
                   at the time the stop is requested, so we have to roll past that time.
@@ -1060,8 +1091,8 @@ Session::stop_transport (bool abort, bool clear_state)
                */
 
                SessionEvent *ev = new SessionEvent (SessionEvent::StopOnce, SessionEvent::Replace,
-                                                     _transport_frame + _worst_input_latency - current_block_size,
-                                                     0, 0, abort);
+                                                    _transport_frame + _worst_input_latency - current_block_size,
+                                                    0, 0, abort);
 
                merge_event (ev);
                transport_sub_state |= StopPendingCapture;
@@ -1069,19 +1100,18 @@ Session::stop_transport (bool abort, bool clear_state)
                return;
        }
 
-
        if ((transport_sub_state & PendingDeclickOut) == 0) {
 
-                if (!(transport_sub_state & StopPendingCapture)) {
+               if (!(transport_sub_state & StopPendingCapture)) {
                        boost::shared_ptr<RouteList> rl = routes.reader();
                        for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) {
                                boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
                                if (tr) {
                                        tr->prepare_to_stop (_transport_frame);
                                }
-                        }
-                }
-                
+                       }
+               }
+
                transport_sub_state |= PendingDeclickOut;
                /* we'll be called again after the declick */
                pending_abort = abort;
@@ -1092,9 +1122,12 @@ Session::stop_transport (bool abort, bool clear_state)
        _butler->schedule_transport_work ();
 }
 
+/** Called from the process thread */
 void
 Session::start_transport ()
 {
+       DEBUG_TRACE (DEBUG::Transport, "start_transport\n");
+
        _last_roll_location = _transport_frame;
        _last_roll_or_reversal_location = _transport_frame;
        
@@ -1132,14 +1165,14 @@ Session::start_transport ()
                if (tr) {
                        tr->realtime_set_speed (tr->speed(), true);
                }
-                (*i)->automation_snapshot (_transport_frame, true);
+               (*i)->automation_snapshot (_transport_frame, true);
        }
 
-        Timecode::Time time;
-        timecode_time_subframes (_transport_frame, time);
-        if (!dynamic_cast<MTC_Slave*>(_slave)) {
-                MIDI::Manager::instance()->mmc()->send (MIDI::MachineControlCommand (MIDI::MachineControl::cmdDeferredPlay));
-        }
+       Timecode::Time time;
+       timecode_time_subframes (_transport_frame, time);
+       if (!dynamic_cast<MTC_Slave*>(_slave)) {
+               MIDI::Manager::instance()->mmc()->send (MIDI::MachineControlCommand (MIDI::MachineControl::cmdDeferredPlay));
+       }
 
        TransportStateChange (); /* EMIT SIGNAL */
 }
@@ -1280,9 +1313,9 @@ Session::switch_to_sync_source (SyncSource src)
                        return;
                }
 
-                if (config.get_video_pullup() != 0.0f) {
-                        return;
-                }
+               if (config.get_video_pullup() != 0.0f) {
+                       return;
+               }
 
                new_slave = new JACK_Slave (_engine.jack());
                break;
@@ -1442,7 +1475,7 @@ Session::engine_halted ()
 void
 Session::xrun_recovery ()
 {
-       Xrun (_transport_frame); //EMIT SIGNAL
+       Xrun (_transport_frame); /* EMIT SIGNAL */
 
        if (Config->get_stop_recording_on_xrun() && actively_recording()) {
 
@@ -1461,70 +1494,10 @@ Session::route_processors_changed (RouteProcessorChange c)
                return;
        }
 
-       update_latency_compensation (false, false);
+       update_latency_compensation ();
        resort_routes ();
-}
 
-void
-Session::update_latency_compensation (bool with_stop, bool abort, bool force_whole_graph)
-{
-       bool update_jack = false;
-       PostTransportWork ptw;
-
-       if (_state_of_the_state & Deletion) {
-               return;
-       }
-
-       _worst_track_latency = 0;
-       ptw = post_transport_work();
-
-       DEBUG_TRACE(DEBUG::Latency, "---------------------------- update latency compensation\n\n")
-
-       boost::shared_ptr<RouteList> r = routes.reader ();
-
-       for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
-
-               if (with_stop) {
-                       (*i)->nonrealtime_handle_transport_stopped (abort, (ptw & PostTransportLocate), (!(ptw & PostTransportLocate) || pending_locate_flush));
-               }
-
-               framecnt_t old_latency = (*i)->signal_latency ();
-               framecnt_t new_latency = (*i)->update_signal_latency ();
-
-               if (old_latency != new_latency) {
-                       update_jack = true;
-               }
-
-               if (!(*i)->is_hidden() && ((*i)->active())) {
-                       _worst_track_latency = max (_worst_track_latency, new_latency);
-               }
-       }
-
-       if (force_whole_graph || update_jack) {
-                /* trigger a full recompute of latency numbers for the graph
-                 */
-               _engine.update_total_latencies ();
-       } 
-
-       DEBUG_TRACE(DEBUG::Latency, string_compose("worst case route internal latency was %1\n", _worst_track_latency));
-
-       for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
-               (*i)->set_latency_compensation (_worst_track_latency);
-       }
-
-       set_worst_io_latencies ();
-
-       /* reflect any changes in latencies into capture offsets
-       */
-       
-       boost::shared_ptr<RouteList> rl = routes.reader();
-       for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) {
-               boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
-               if (tr) {
-                       tr->set_capture_offset ();
-               }
-       }
-       DEBUG_TRACE(DEBUG::Latency, "---------------------------- DONE update latency compensation\n\n")
+       set_dirty ();
 }
 
 void
@@ -1546,15 +1519,15 @@ Session::reset_jack_connection (jack_client_t* jack)
 bool
 Session::maybe_stop (framepos_t limit)
 {
-       if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
-               if (synced_to_jack () && config.get_jack_time_master ()) {
-                       _engine.transport_stop ();
-               } else if (!synced_to_jack ()) {
-                       stop_transport ();
-               }
-               return true;
-       }
-       return false;
+       if ((_transport_speed > 0.0f && _transport_frame >= limit) || (_transport_speed < 0.0f && _transport_frame == 0)) {
+               if (synced_to_jack () && config.get_jack_time_master ()) {
+                       _engine.transport_stop ();
+               } else if (!synced_to_jack ()) {
+                       stop_transport ();
+               }
+               return true;
+       }
+       return false;
 }
 
 void