Make Session::audible_frame() return a (more) correct answer when the transport has...
[ardour.git] / libs / ardour / session_transport.cc
index 12dc1c3d3d1ee65562abf84c235d1c42d4369362..6d7d3b4521c9abdea1c1d1018e8d685081b53685 100644 (file)
@@ -32,7 +32,6 @@
 #include "midi++/port.h"
 
 #include "ardour/ardour.h"
-#include "ardour/audio_diskstream.h"
 #include "ardour/audioengine.h"
 #include "ardour/auditioner.h"
 #include "ardour/butler.h"
@@ -107,10 +106,10 @@ Session::request_transport_speed (double speed)
 }
 
 void
-Session::request_diskstream_speed (Diskstream& ds, double speed)
+Session::request_track_speed (Track* tr, double speed)
 {
-       SessionEvent* ev = new SessionEvent (SessionEvent::SetDiskstreamSpeed, SessionEvent::Add, SessionEvent::Immediate, 0, speed);
-       ev->set_ptr (&ds);
+       SessionEvent* ev = new SessionEvent (SessionEvent::SetTrackSpeed, SessionEvent::Add, SessionEvent::Immediate, 0, speed);
+       ev->set_ptr (tr);
        queue_event (ev);
 }
 
@@ -155,7 +154,7 @@ Session::request_play_loop (bool yn, bool leave_rolling)
        queue_event (ev);
 
        if (!leave_rolling && !yn && Config->get_seamless_loop() && transport_rolling()) {
-               // request an immediate locate to refresh the diskstreams
+               // request an immediate locate to refresh the tracks
                // after disabling looping
                request_locate (_transport_frame-1, false);
        }
@@ -230,8 +229,9 @@ Session::realtime_stop (bool abort, bool clear_state)
        _clear_event_type (SessionEvent::RangeStop);
        _clear_event_type (SessionEvent::RangeLocate);
 
-       disable_record (true);
-
+        /* 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;
@@ -251,7 +251,6 @@ Session::butler_transport_work ()
        bool finished;
        PostTransportWork ptw;
        boost::shared_ptr<RouteList> r = routes.reader ();
-       boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
 
        int on_entry = g_atomic_int_get (&_butler->should_do_transport_work);
        finished = true;
@@ -266,8 +265,11 @@ Session::butler_transport_work ()
        }
 
        if (ptw & PostTransportInputChange) {
-               for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-                       (*i)->non_realtime_input_change ();
+               for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
+                       boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
+                       if (tr) {
+                               tr->non_realtime_input_change ();
+                       }
                }
        }
 
@@ -285,9 +287,10 @@ Session::butler_transport_work ()
 
                if (!(ptw & PostTransportLocate)) {
 
-                       for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-                               if (!(*i)->hidden()) {
-                                       (*i)->non_realtime_locate (_transport_frame);
+                       for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
+                               boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
+                               if (tr && !tr->hidden()) {
+                                       tr->non_realtime_locate (_transport_frame);
                                }
                                if (on_entry != g_atomic_int_get (&_butler->should_do_transport_work)) {
                                        /* new request, stop seeking, and start again */
@@ -323,26 +326,30 @@ Session::butler_transport_work ()
        }
 
        g_atomic_int_dec_and_test (&_butler->should_do_transport_work);
+
+       DEBUG_TRACE (DEBUG::Transport, X_("Butler transport work all done\n"));
 }
 
 void
 Session::non_realtime_set_speed ()
 {
-       boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
-
-       for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-               (*i)->non_realtime_set_speed ();
+       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->non_realtime_set_speed ();
+               }
        }
 }
 
 void
 Session::non_realtime_overwrite (int on_entry, bool& finished)
 {
-       boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
-
-       for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-               if ((*i)->pending_overwrite) {
-                       (*i)->overwrite_existing_buffers ();
+       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->pending_overwrite ()) {
+                       tr->overwrite_existing_buffers ();
                }
                if (on_entry != g_atomic_int_get (&_butler->should_do_transport_work)) {
                        finished = false;
@@ -355,10 +362,12 @@ Session::non_realtime_overwrite (int on_entry, bool& finished)
 void
 Session::non_realtime_locate ()
 {
-       boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
-
-       for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-               (*i)->non_realtime_locate (_transport_frame);
+       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->non_realtime_locate (_transport_frame);
+               }
        }
 }
 
@@ -375,10 +384,10 @@ Session::non_realtime_stop (bool abort, int on_entry, bool& finished)
        did_record = false;
        saved = false;
 
-       boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
-
-       for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-               if ((*i)->get_captured_frames () != 0) {
+       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->get_captured_frames () != 0) {
                        did_record = true;
                        break;
                }
@@ -400,7 +409,7 @@ Session::non_realtime_stop (bool abort, int on_entry, bool& finished)
        if (did_record) {
                begin_reversible_command ("capture");
 
-               Location* loc = _locations.end_location();
+               Location* loc = _locations.session_range_location();
                bool change_end = false;
 
                if (_transport_frame < loc->end()) {
@@ -432,8 +441,12 @@ Session::non_realtime_stop (bool abort, int on_entry, bool& finished)
                _have_captured = true;
        }
 
-       for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-               (*i)->transport_stopped (*now, xnow, abort);
+       DEBUG_TRACE (DEBUG::Transport, X_("Butler PTW: DS stop\n"));
+       for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) {
+               boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
+               if (tr) {
+                       tr->transport_stopped_wallclock (*now, xnow, abort);
+               }
        }
 
        boost::shared_ptr<RouteList> r = routes.reader ();
@@ -467,7 +480,7 @@ 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;
 
@@ -527,7 +540,7 @@ Session::non_realtime_stop (bool abort, int on_entry, bool& finished)
 
        }
 
-       /* do this before seeking, because otherwise the Diskstreams will do the wrong thing in seamless loop mode.
+       /* do this before seeking, because otherwise the tracks will do the wrong thing in seamless loop mode.
        */
 
        if (ptw & PostTransportClearSubstate) {
@@ -537,11 +550,14 @@ Session::non_realtime_stop (bool abort, int on_entry, bool& finished)
 
        /* this for() block can be put inside the previous if() and has the effect of ... ??? what */
 
-
-       for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-               if (!(*i)->hidden()) {
-                       (*i)->non_realtime_locate (_transport_frame);
+       DEBUG_TRACE (DEBUG::Transport, X_("Butler PTW: locate\n"));
+       for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
+               DEBUG_TRACE (DEBUG::Transport, string_compose ("Butler PTW: locate on %1\n", (*i)->name()));
+               boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
+               if (tr && !tr->hidden()) {
+                       tr->non_realtime_locate (_transport_frame);
                }
+
                if (on_entry != g_atomic_int_get (&_butler->should_do_transport_work)) {
                        finished = false;
                        /* we will be back */
@@ -623,11 +639,12 @@ Session::unset_play_loop ()
        play_loop = false;
        clear_events (SessionEvent::AutoLoop);
        
-       // set all diskstreams to NOT use internal looping
-       boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
-       for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-               if (!(*i)->hidden()) {
-                       (*i)->set_loop (0);
+       // set all tracks to NOT use internal looping
+       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->hidden()) {
+                       tr->set_loop (0);
                }
        }
 }
@@ -662,20 +679,22 @@ Session::set_play_loop (bool yn)
                        unset_play_range ();
 
                        if (Config->get_seamless_loop()) {
-                               // set all diskstreams to use internal looping
-                               boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
-                               for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-                                       if (!(*i)->hidden()) {
-                                               (*i)->set_loop (loc);
+                               // set all tracks to use internal looping
+                               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->hidden()) {
+                                               tr->set_loop (loc);
                                        }
                                }
                        }
                        else {
-                               // set all diskstreams to NOT use internal looping
-                               boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
-                               for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-                                       if (!(*i)->hidden()) {
-                                               (*i)->set_loop (0);
+                               // set all tracks to NOT use internal looping
+                               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->hidden()) {
+                                               tr->set_loop (0);
                                        }
                                }
                        }
@@ -741,16 +760,19 @@ Session::start_locate (nframes64_t target_frame, bool with_roll, bool with_flush
 int
 Session::micro_locate (nframes_t distance)
 {
-       boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
-
-       for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-               if (!(*i)->can_internal_playback_seek (distance)) {
+       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->can_internal_playback_seek (distance)) {
                        return -1;
                }
        }
 
-       for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-               (*i)->internal_playback_seek (distance);
+       for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) {
+               boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
+               if (tr) {
+                       tr->internal_playback_seek (distance);
+               }
        }
 
        _transport_frame += distance;
@@ -826,24 +848,25 @@ Session::locate (nframes64_t target_frame, bool with_roll, bool with_flush, bool
                /* switch from input if we're going to roll */
                if (Config->get_monitoring_model() == HardwareMonitoring) {
 
-                       boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
-
-                       for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-                               if ((*i)->record_enabled ()) {
+                       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->record_enabled ()) {
                                        //cerr << "switching from input" << __FILE__ << __LINE__ << endl << endl;
-                                       (*i)->monitor_input (!config.get_auto_input());
+                                       tr->monitor_input (!config.get_auto_input());
                                }
                        }
                }
        } else {
                /* otherwise we're going to stop, so do the opposite */
                if (Config->get_monitoring_model() == HardwareMonitoring) {
-                       boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
 
-                       for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-                               if ((*i)->record_enabled ()) {
+                       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->record_enabled ()) {
                                        //cerr << "switching to input" << __FILE__ << __LINE__ << endl << endl;
-                                       (*i)->monitor_input (true);
+                                       tr->monitor_input (true);
                                }
                        }
                }
@@ -861,12 +884,12 @@ Session::locate (nframes64_t target_frame, bool with_roll, bool with_flush, bool
                        if (with_loop) {
                                // this is only necessary for seamless looping
 
-                               boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
-
-                               for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-                                       if ((*i)->record_enabled ()) {
+                               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->record_enabled ()) {
                                                // tell it we've looped, so it can deal with the record state
-                                               (*i)->transport_looped(_transport_frame);
+                                               tr->transport_looped(_transport_frame);
                                        }
                                }
                        }
@@ -913,12 +936,12 @@ Session::set_transport_speed (double speed, bool abort, bool clear_state)
 
                if (Config->get_monitoring_model() == HardwareMonitoring)
                {
-                       boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
-
-                       for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-                               if ((*i)->record_enabled ()) {
+                       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->record_enabled ()) {
                                        //cerr << "switching to input" << __FILE__ << __LINE__ << endl << endl;
-                                       (*i)->monitor_input (true);
+                                       tr->monitor_input (true);
                                }
                        }
                }
@@ -942,12 +965,12 @@ Session::set_transport_speed (double speed, bool abort, bool clear_state)
 
                if (Config->get_monitoring_model() == HardwareMonitoring) {
 
-                       boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
-
-                       for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-                               if (config.get_auto_input() && (*i)->record_enabled ()) {
+                       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 (config.get_auto_input() && tr && tr->record_enabled ()) {
                                        //cerr << "switching from input" << __FILE__ << __LINE__ << endl << endl;
-                                       (*i)->monitor_input (false);
+                                       tr->monitor_input (false);
                                }
                        }
                }
@@ -989,14 +1012,16 @@ Session::set_transport_speed (double speed, bool abort, bool clear_state)
 
                if ((_transport_speed && speed * _transport_speed < 0.0) || (_last_transport_speed * speed < 0.0) || (_last_transport_speed == 0.0f && speed < 0.0f)) {
                        todo = PostTransportWork (todo | PostTransportReverse);
+                       _last_roll_or_reversal_location = _transport_frame;
                }
 
                _last_transport_speed = _transport_speed;
                _transport_speed = speed;
 
-               boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
-               for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-                       if ((*i)->realtime_set_speed ((*i)->speed(), true)) {
+               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->realtime_set_speed (tr->speed(), true)) {
                                todo = PostTransportWork (todo | PostTransportSpeed);
                                break;
                        }
@@ -1020,10 +1045,12 @@ Session::stop_transport (bool abort, bool clear_state)
 
        if (actively_recording() && !(transport_sub_state & StopPendingCapture) && _worst_output_latency > current_block_size) {
 
-                boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
-
-                for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-                        (*i)->prepare_to_stop (_transport_frame);
+               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);
+                       }
                 }
 
                /* we need to capture the audio that has still not yet been received by the system
@@ -1048,10 +1075,12 @@ Session::stop_transport (bool abort, bool clear_state)
        if ((transport_sub_state & PendingDeclickOut) == 0) {
 
                 if (!(transport_sub_state & StopPendingCapture)) {
-                        boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
-                        
-                        for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-                                (*i)->prepare_to_stop (_transport_frame);
+                       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);
+                               }
                         }
                 }
                 
@@ -1069,6 +1098,8 @@ void
 Session::start_transport ()
 {
        _last_roll_location = _transport_frame;
+       _last_roll_or_reversal_location = _transport_frame;
+       
        have_looped = false;
 
        /* if record status is Enabled, move it to Recording. if its
@@ -1097,9 +1128,12 @@ Session::start_transport ()
        _transport_speed = 1.0;
        _target_transport_speed = 1.0;
 
-       boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
-       for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-               (*i)->realtime_set_speed ((*i)->speed(), true);
+       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->realtime_set_speed (tr->speed(), true);
+               }
        }
 
        deliver_mmc(MIDI::MachineControl::cmdDeferredPlay, _transport_frame);
@@ -1177,13 +1211,14 @@ Session::use_sync_source (Slave* new_slave)
        delete _slave;
        _slave = new_slave;
 
-       boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
-       for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-               if (!(*i)->hidden()) {
-                       if ((*i)->realtime_set_speed ((*i)->speed(), true)) {
+       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->hidden()) {
+                       if (tr->realtime_set_speed (tr->speed(), true)) {
                                non_rt_required = true;
                        }
-                       (*i)->set_slaved (_slave != 0);
+                       tr->set_slaved (_slave != 0);
                }
        }
 
@@ -1266,16 +1301,16 @@ Session::switch_to_sync_source (SyncSource src)
 }
 
 void
-Session::reverse_diskstream_buffers ()
+Session::reverse_track_buffers ()
 {
        add_post_transport_work (PostTransportReverse);
        _butler->schedule_transport_work ();
 }
 
 void
-Session::set_diskstream_speed (Diskstream* stream, double speed)
+Session::set_track_speed (Track* track, double speed)
 {
-       if (stream->realtime_set_speed (speed, false)) {
+       if (track->realtime_set_speed (speed, false)) {
                add_post_transport_work (PostTransportSpeed);
                _butler->schedule_transport_work ();
                set_dirty ();
@@ -1493,11 +1528,13 @@ Session::update_latency_compensation (bool with_stop, bool abort)
 
        /* reflect any changes in latencies into capture offsets
        */
-
-       boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
-
-       for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-               (*i)->set_capture_offset ();
+       
+       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 ();
+               }
        }
 }