add midi-bypass to re-configurable-i/o instruments

diff --git a/libs/ardour/plugin_insert.cc b/libs/ardour/plugin_insert.cc
index a72412a86875fbc99d99520249287265802b2da1..d3204381381039fdab820bf5589cb40624e22bb3 100644 (file)
--- a/libs/ardour/plugin_insert.cc
+++ b/libs/ardour/plugin_insert.cc
@@ -1877,6 +1877,8 @@ PluginInsert::internal_can_support_io_configuration (ChanCount const & inx, Chan
                        // houston, we have a problem.
                        return Match (Impossible, 0);
                }
+               // midi bypass
+               if (inx.n_midi () > 0 && out.n_midi () == 0) { out.set (DataType::MIDI, 1); }
                return Match (Delegate, 1, _strict_io);
        }
 
@@ -1945,6 +1947,8 @@ PluginInsert::automatic_can_support_io_configuration (ChanCount const & inx, Cha
                if (!r) {
                        return Match (Impossible, 0);
                }
+               // midi bypass
+               if (in.n_midi () > 0 && out.n_midi () == 0) { out.set (DataType::MIDI, 1); }
                return Match (Delegate, 1);
        }