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Allow to skip setting MIDI patch on session-load #8743

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Ardour MIDI tracks unconditionally remember any
MIDI CC/Patch changes that are received.

Patch changes are re-played after the session is loaded,
so that they can reach external synths after ports are
re-connected.

This can lead to issues with synth plugins. Their state
is set first. Receiving a patch-change may alter the synth's
state.
This commit is contained in:
Robin Gareus 2021-07-13 03:28:01 +02:00
parent 446dcbd8ce
commit de3291d10b
No known key found for this signature in database
GPG key ID: A090BCE02CF57F04
2 changed files with 47 additions and 3 deletions
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4
libs/ardour/ardour/midi_track.h
View file

@ -138,6 +138,9 @@ public:
bool input_active () const;
PBD::Signal0<void> InputActiveChanged;
void set_restore_pgm_on_load (bool yn);
bool restore_pgm_on_load () const;
void realtime_handle_transport_stopped ();
void region_edited (boost::shared_ptr<Region>);
@ -159,6 +162,7 @@ private:
NoteMode _note_mode;
bool _step_editing;
bool _input_active;
bool _restore_pgm_on_load;
MidiChannelFilter _playback_filter;
MidiChannelFilter _capture_filter;

46
libs/ardour/midi_track.cc
View file

@ -84,6 +84,7 @@ MidiTrack::MidiTrack (Session& sess, string name, TrackMode mode)
, _note_mode (Sustained)
, _step_editing (false)
, _input_active (true)
, _restore_pgm_on_load (true)
{
_session.SessionLoaded.connect_same_thread (*this, boost::bind (&MidiTrack::restore_controls, this));
@ -173,6 +174,10 @@ MidiTrack::set_state (const XMLNode& node, int version)
set_input_active (yn);
}
if (node.get_property ("restore-pgm", yn)) {
set_restore_pgm_on_load (yn);
}
ChannelMode playback_channel_mode = AllChannels;
ChannelMode capture_channel_mode = AllChannels;
@ -251,6 +256,7 @@ MidiTrack::state(bool save_template)
root.set_property ("note-mode", _note_mode);
root.set_property ("step-editing", _step_editing);
root.set_property ("input-active", _input_active);
root.set_property ("restore-pgm", _restore_pgm_on_load);
for (Controls::const_iterator c = _controls.begin(); c != _controls.end(); ++c) {
if (boost::dynamic_pointer_cast<MidiTrack::MidiControl>(c->second)) {
@ -330,10 +336,22 @@ MidiTrack::set_state_part_two ()
void
MidiTrack::restore_controls ()
{
// TODO order events (CC before PGM to set banks)
/* first CC (bank select) */
for (Controls::const_iterator c = _controls.begin(); c != _controls.end(); ++c) {
boost::shared_ptr<MidiTrack::MidiControl> mctrl = boost::dynamic_pointer_cast<MidiTrack::MidiControl>(c->second);
if (mctrl) {
if (mctrl && mctrl->parameter().type () != MidiPgmChangeAutomation) {
mctrl->restore_value();
}
}
if (!_restore_pgm_on_load) {
return;
}
/* then restore PGM */
for (Controls::const_iterator c = _controls.begin(); c != _controls.end(); ++c) {
boost::shared_ptr<MidiTrack::MidiControl> mctrl = boost::dynamic_pointer_cast<MidiTrack::MidiControl>(c->second);
if (mctrl && mctrl->parameter().type () == MidiPgmChangeAutomation) {
mctrl->restore_value();
}
}
@ -664,8 +682,14 @@ MidiTrack::MidiControl::actually_set_value (double val, PBD::Controllable::Group
return;
}
if (_session.loading ()) {
/* send events later in MidiTrack::restore_controls */
AutomationControl::actually_set_value (val, group_override);
return;
}
assert(val <= desc.upper);
if ( ! _list || ! automation_playback()) {
if (!_list || !automation_playback ()) {
size_t size = 3;
uint8_t ev[3] = { parameter.channel(), uint8_t (val), 0 };
switch(parameter.type()) {
@ -766,6 +790,22 @@ MidiTrack::midi_playlist ()
return boost::dynamic_pointer_cast<MidiPlaylist> (_playlists[DataType::MIDI]);
}
void
MidiTrack::set_restore_pgm_on_load (bool yn)
{
if (_restore_pgm_on_load == yn) {
return;
}
_restore_pgm_on_load = yn;
_session.set_dirty();
}
bool
MidiTrack::restore_pgm_on_load () const
{
return _restore_pgm_on_load;
}
bool
MidiTrack::input_active () const
{