97de6efe5d
Loading a session with a loop-range, or setting a loop-range adds LoopDeclick events. Normal play back (no loop) never processes/clears the events. Ardour was constantly doing split cycles for nothing. This lead to stuck midi-notes: Split cycle calls increment_global_port_buffer_offset() but the midi_diskstream itself was not aware of any loop positions or offsets. Entering loop playback adds those events explicitly in Session::set_play_loop(). auto_loop_changed() only needs to add/replace session-events when actively looping.
Please see the Ardour web site at http://ardour.org/ for all documentation..
For information on building ardour:
http://ardour.org/development.html