lilypond-0.0.40

diff --git a/lily/midi-walker.cc b/lily/midi-walker.cc
index 801ba32e122588a3758ea0d6c44f3fee3f9d4494..4a1674c7f7a043feb802f2e9058b679997bb8865 100644 (file)
--- a/lily/midi-walker.cc
+++ b/lily/midi-walker.cc
@@ -36,6 +36,32 @@ Midi_walker::do_stop_notes(Moment max_moment)
        output_event(note, stop_moment);
     }
 }
+/**
+  Find out if start_note event is needed,  and do it if needed.
+ */
+void 
+Midi_walker::do_start_note(Note_req*note_l)
+{
+    Moment stop=note_l->duration() + ptr()->when();
+    for(int i=0; i < stop_notes.size(); i++)
+       if (stop_notes.value_arr_[i]->melodic()->pitch() ==
+           note_l->pitch()) {
+            if ( stop_notes.indices_arr_[i] < stop){
+                
+                stop_notes.del(i);
+                return ;  // removing this gives a feature ( ${c2 c4}$ output correctly)
+            }
+            else
+                return; // skip the stop note 
+            break;// do the stop note               
+       }
+    
+    stop_notes.enter(note_l,  stop);
+    Midi_note note(note_l, track_l_->number_i_, true);
+    output_event(note, ptr()->when());
+}
+
+
 /** advance the track to #now#, output the item, and adjust current
   "moment".  */
 void
@@ -58,10 +84,8 @@ Midi_walker::process_requests()
        Note_req * note_l = n->note();
        if (!note_l)
            continue;
+       do_start_note(note_l);
        
-       Midi_note note(note_l, track_l_->number_i_, true);
-       stop_notes.enter(note_l, n->duration() + ptr()->when() );
-       output_event(note, ptr()->when());
     }
 }