diff options
Diffstat (limited to 'libs/ardour/plugin.cc')
| -rw-r--r-- | libs/ardour/plugin.cc | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/libs/ardour/plugin.cc b/libs/ardour/plugin.cc index 98bc5f35ad..1a711b5250 100644 --- a/libs/ardour/plugin.cc +++ b/libs/ardour/plugin.cc @@ -68,6 +68,7 @@ Plugin::Plugin (AudioEngine& e, Session& s) : _engine (e) , _session (s) , _cycles (0) + , _have_pending_stop_events (false) { } @@ -78,6 +79,7 @@ Plugin::Plugin (const Plugin& other) , _session (other._session) , _info (other._info) , _cycles (0) + , _have_pending_stop_events (false) { } @@ -206,3 +208,38 @@ Plugin::preset_by_uri (const string& uri) return 0; } } + +int +Plugin::connect_and_run (BufferSet& bufs, + ChanMapping in_map, ChanMapping out_map, + pframes_t nframes, framecnt_t offset) +{ + if (bufs.count().n_midi() > 0) { + + /* Track notes that we are sending to the plugin */ + MidiBuffer& b = bufs.get_midi (0); + bool looped; + _tracker.track (b.begin(), b.end(), looped); + + if (_have_pending_stop_events) { + /* Transmit note-offs that are pending from the last transport stop */ + bufs.merge_from (_pending_stop_events, 0); + _have_pending_stop_events = false; + } + } + + return 0; +} + +void +Plugin::realtime_handle_transport_stopped () +{ + /* Create note-offs for any active notes and put them in _pending_stop_events, to be picked + up on the next call to connect_and_run (). + */ + + _pending_stop_events.ensure_buffers (DataType::MIDI, 1, 4096); + _pending_stop_events.get_midi(0).clear (); + _tracker.resolve_notes (_pending_stop_events.get_midi (0), 0); + _have_pending_stop_events = true; +} |