track notes at the region level in MidiPlaylist; resolve them (deliver note offs...

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

diff --git a/libs/ardour/midi_source.cc b/libs/ardour/midi_source.cc
index 53b1d2c9a525a165482e1473de598f763cdc7a06..20119e20b69bcc7c080f41104ebecf9536d76aa9 100644 (file)
--- a/libs/ardour/midi_source.cc
+++ b/libs/ardour/midi_source.cc
@@ -35,6 +35,7 @@
 #include "ardour/audioengine.h"
 #include "ardour/midi_model.h"
 #include "ardour/midi_ring_buffer.h"
+#include "ardour/midi_state_tracker.h"
 #include "ardour/midi_source.h"
 #include "ardour/session.h"
 #include "ardour/session_directory.h"
@@ -126,8 +127,9 @@ MidiSource::invalidate ()
 
 nframes_t
 MidiSource::midi_read (MidiRingBuffer<nframes_t>& dst, sframes_t source_start,
-               sframes_t start, nframes_t cnt,
-               sframes_t stamp_offset, sframes_t negative_stamp_offset) const
+                      sframes_t start, nframes_t cnt,
+                      sframes_t stamp_offset, sframes_t negative_stamp_offset,
+                      MidiStateTracker* tracker) const
 {
        Glib::Mutex::Lock lm (_lock);
 
@@ -152,13 +154,21 @@ MidiSource::midi_read (MidiRingBuffer<nframes_t>& dst, sframes_t source_start,
                        const sframes_t time_frames = BEATS_TO_FRAMES(i->time());
                        if (time_frames < source_start + start + cnt) {
                                dst.write(time_frames, i->event_type(), i->size(), i->buffer());
+                               if (tracker) {
+                                       Evoral::MIDIEvent<Evoral::MusicalTime>& ev (*(Evoral::MIDIEvent<Evoral::MusicalTime>*) (&(*i)));
+                                       if (ev.is_note_on()) {
+                                               tracker->add (ev.note(), ev.channel());
+                                       } else if (ev.is_note_off()) {
+                                               tracker->remove (ev.note(), ev.channel());
+                                       }
+                               }
                        } else {
                                break;
                        }
                }
                return cnt;
        } else {
-               return read_unlocked (dst, source_start, start, cnt, stamp_offset, negative_stamp_offset);
+               return read_unlocked (dst, source_start, start, cnt, stamp_offset, negative_stamp_offset, tracker);
        }
 }