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VST3: skip context info callbacks during session load

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This fixes a crash when SSL's channelstrip calls set-selection
early on during session load, during Session::load_routes.

Session::add_routes_inner calls calls ARDOUR::GUIIdle() which
can trigger a SSL Native Channel Strip 2" VST3 to call
VST3PI::setContextInfoValue, which in turn emits a
CoreSelection::send_selection_change before the session is
fully loaded.

This also handles various edge cases where a given AC may
not [yet] exist.
This commit is contained in:
Robin Gareus 2024-05-20 18:56:48 +02:00
parent ac779b38b2
commit e34359b921
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
1 changed files with 17 additions and 6 deletions
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23
libs/ardour/vst3_plugin.cc
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@ -2969,14 +2969,21 @@ VST3PI::getContextInfoValue (double& value, FIDString id)
tresult
VST3PI::setContextInfoValue (FIDString id, double value)
{
if (!_owner) {
Stripable* s = dynamic_cast<Stripable*> (_owner);
if (!s) {
DEBUG_TRACE (DEBUG::VST3Callbacks, "VST3PI::setContextInfoValue<double>: not initialized");
return kNotInitialized;
}
DEBUG_TRACE (DEBUG::VST3Callbacks, string_compose ("VST3PI::setContextInfoValue<double> %1 to %2\n", id, value));
if (s->session ().loading () || s->session ().deletion_in_progress ()) {
return kResultOk;
}
if (0 == strcmp (id, ContextInfo::kVolume)) {
std::shared_ptr<AutomationControl> ac = lookup_ac (_owner, id);
ac->set_value (value, Controllable::NoGroup);
assert (ac);
if (ac) {
ac->set_value (value, Controllable::NoGroup);
}
} else if (0 == strcmp (id, ContextInfo::kPan)) {
std::shared_ptr<AutomationControl> ac = lookup_ac (_owner, id);
if (ac) {
@ -3005,6 +3012,9 @@ VST3PI::setContextInfoValue (FIDString id, int32 value)
return kNotInitialized;
}
DEBUG_TRACE (DEBUG::VST3Callbacks, string_compose ("VST3PI::setContextInfoValue<int> %1 to %2\n", id, value));
if (s->session ().loading () || s->session ().deletion_in_progress ()) {
return kResultOk;
}
if (0 == strcmp (id, ContextInfo::kColor)) {
#if BYTEORDER == kBigEndian
SWAP_32 (value) // ABGR32 -> RGBA32
@ -3022,10 +3032,11 @@ VST3PI::setContextInfoValue (FIDString id, int32 value)
}
} else if (0 == strcmp (id, ContextInfo::kMultiSelect)) {
_add_to_selection = value != 0;
} else if (0 == strcmp (id, ContextInfo::kMute)) {
s->session ().set_control (lookup_ac (_owner, id), value != 0 ? 1 : 0, Controllable::NoGroup);
} else if (0 == strcmp (id, ContextInfo::kSolo)) {
s->session ().set_control (lookup_ac (_owner, id), value != 0 ? 1 : 0, Controllable::NoGroup);
} else if (0 == strcmp (id, ContextInfo::kMute) || 0 == strcmp (id, ContextInfo::kSolo)) {
std::shared_ptr<AutomationControl> ac = lookup_ac (_owner, id);
if (ac) {
s->session ().set_control (ac, value != 0 ? 1 : 0, Controllable::NoGroup);
}
} else {
DEBUG_TRACE (DEBUG::VST3Callbacks, "VST3PI::setContextInfoValue<int>: unsupported ID\n");
return kNotImplemented;