Add some comments.

[ardour.git] / libs / ardour / session_transport.cc

diff --git a/libs/ardour/session_transport.cc b/libs/ardour/session_transport.cc
index 17a6806c526e18d458e3e018f49df30de1fc350b..d032e31b93febad22c2b8b90147888ab71d19ea4 100644 (file)
--- a/libs/ardour/session_transport.cc
+++ b/libs/ardour/session_transport.cc
@@ -49,11 +49,10 @@ using namespace sigc;
 using namespace PBD;
 
 void
-Session::request_input_change_handling (boost::shared_ptr<Diskstream> ds)
+Session::request_input_change_handling ()
 {
        if (!(_state_of_the_state & (InitialConnecting|Deletion))) {
                Event* ev = new Event (Event::InputConfigurationChange, Event::Add, Event::Immediate, 0, 0.0);
-               ev->diskstream = ds;
                queue_event (ev);
        }
 }
@@ -135,6 +134,11 @@ void
 Session::realtime_stop (bool abort)
 {
        /* assume that when we start, we'll be moving forwards */
+       
+       // FIXME: where should this really be? [DR]
+       //send_full_time_code();
+       deliver_mmc (MIDI::MachineControl::cmdStop, _transport_frame);
+       deliver_mmc (MIDI::MachineControl::cmdLocate, _transport_frame);
 
        if (_transport_speed < 0.0f) {
                post_transport_work = PostTransportWork (post_transport_work | PostTransportStop | PostTransportReverse);
@@ -197,27 +201,9 @@ Session::butler_transport_work ()
        }
 
        if (post_transport_work & PostTransportInputChange) {
-               {
-                       RCUWriter<DiskstreamList> input_writer (diskstreams_input_pending);
-                       boost::shared_ptr<DiskstreamList> input_list = input_writer.get_copy ();
-                       RCUWriter<DiskstreamList> dswriter (diskstreams);
-                       boost::shared_ptr<DiskstreamList> ds = dswriter.get_copy();
-
-                       for (DiskstreamList::iterator i = input_list->begin(); i != input_list->end(); ++i) {
-
-                               /* make the change */
-                               
-                               (*i)->non_realtime_input_change ();
-
-                               /* now transfer it back onto the regular diskstreams list */
-
-                               ds->push_back (*i);
-                       }
-                       
-                       input_list->clear();
+               for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
+                       (*i)->non_realtime_input_change ();
                }
-
-               diskstreams_input_pending.flush ();
        }
 
        if (post_transport_work & PostTransportSpeed) {
@@ -424,16 +410,13 @@ Session::non_realtime_stop (bool abort, int on_entry, bool& finished)
                                return;
                        }
                }
+
 #ifdef LEAVE_TRANSPORT_UNADJUSTED
        }
 #endif
 
        last_stop_frame = _transport_frame;
 
-       send_full_time_code ();
-       deliver_mmc (MIDI::MachineControl::cmdStop, 0);
-       deliver_mmc (MIDI::MachineControl::cmdLocate, _transport_frame);
-
        if (did_record) {
 
                /* XXX its a little odd that we're doing this here
@@ -644,7 +627,12 @@ Session::locate (nframes_t target_frame, bool with_roll, bool with_flush, bool w
                return;
        }
 
+       // Update SMPTE time
+       // [DR] FIXME: find out exactly where this should go below
        _transport_frame = target_frame;
+       smpte_time(_transport_frame, transmitting_smpte_time);
+       outbound_mtc_smpte_frame = _transport_frame;
+       next_quarter_frame_to_send = 0;
 
        if (_transport_speed && (!with_loop || loop_changing)) {
                /* schedule a declick. we'll be called again when its done */
@@ -658,7 +646,7 @@ Session::locate (nframes_t target_frame, bool with_roll, bool with_flush, bool w
                } 
        }
 
-       if (transport_rolling() && !Config->get_auto_play() && !with_roll && !(synced_to_jack() && play_loop)) {
+       if (transport_rolling() && (!auto_play_legal || !Config->get_auto_play()) && !with_roll && !(synced_to_jack() && play_loop)) {
                realtime_stop (false);
        } 
 
@@ -726,8 +714,14 @@ Session::locate (nframes_t target_frame, bool with_roll, bool with_flush, bool w
        }
        
        loop_changing = false;
+
+       _send_smpte_update = true;
 }
 
+/** Set the transport speed.
+ * @param speed New speed
+ * @param abort
+ */
 void
 Session::set_transport_speed (float speed, bool abort)
 {
@@ -743,6 +737,8 @@ Session::set_transport_speed (float speed, bool abort)
 
        if (transport_rolling() && speed == 0.0) {
 
+               /* we are rolling and we want to stop */
+
                if (Config->get_monitoring_model() == HardwareMonitoring)
                {
                        boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
@@ -763,6 +759,8 @@ Session::set_transport_speed (float speed, bool abort)
                
        } else if (transport_stopped() && speed == 1.0) {
 
+               /* we are stopped and we want to start rolling at speed 1 */
+
                if (!get_record_enabled() && Config->get_stop_at_session_end() && _transport_frame >= current_end_frame()) {
                        return;
                }
@@ -835,6 +833,8 @@ Session::set_transport_speed (float speed, bool abort)
        }
 }
 
+
+/** Stop the transport.  */
 void
 Session::stop_transport (bool abort)
 {
@@ -920,11 +920,14 @@ Session::actually_start_transport ()
                (*i)->realtime_set_speed ((*i)->speed(), true);
        }
 
-       send_mmc_in_another_thread (MIDI::MachineControl::cmdDeferredPlay, 0);
-       
+       deliver_mmc(MIDI::MachineControl::cmdDeferredPlay, _transport_frame);
+
        TransportStateChange (); /* EMIT SIGNAL */
 }
 
+/** Do any transport work in the audio thread that needs to be done after the
+ * transport thread is finished.  Audio thread, realtime safe.
+ */
 void
 Session::post_transport ()
 {
@@ -943,7 +946,7 @@ Session::post_transport ()
 
        if (post_transport_work & PostTransportLocate) {
 
-               if (((Config->get_slave_source() == None && Config->get_auto_play()) && !_exporting) || (post_transport_work & PostTransportRoll)) {
+               if (((Config->get_slave_source() == None && (auto_play_legal && Config->get_auto_play())) && !_exporting) || (post_transport_work & PostTransportRoll)) {
                        start_transport ();
                        
                } else {
@@ -1268,3 +1271,19 @@ Session::update_latency_compensation_proxy (void* ignored)
 {
        update_latency_compensation (false, false);
 }
+
+void
+Session::allow_auto_play (bool yn)
+{
+       auto_play_legal = yn;
+}
+
+void
+Session::reset_jack_connection (jack_client_t* jack)
+{
+       JACK_Slave* js;
+
+       if (_slave && ((js = dynamic_cast<JACK_Slave*> (_slave)) != 0)) {
+               js->reset_client (jack);
+       }
+}