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VST3: update parameter and Bus names on plugin's request 

This is currently only the backend implementation,
the GUI is not yet notified of the change
This commit is contained in:
Robin Gareus 2023-04-24 01:52:09 +02:00
parent c95c11e186
commit 649ad0f052
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
1 changed files with 52 additions and 0 deletions
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52
libs/ardour/vst3_plugin.cc
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@ -1524,6 +1524,58 @@ VST3PI::restartComponent (int32 flags)
}
_plugin_latency.reset ();
}
if (flags & Vst::kIoTitlesChanged) {
/* Input and/or Output bus titles have changed
* compare to VST3PI::count_channels
*/
const Vst::MediaTypes medien [] = { Vst::kAudio, Vst::kEvent };
const Vst::BusDirections dirs[] = { Vst::kInput, Vst::kOutput };
for (auto const& media : medien) {
for (auto const& dir : dirs) {
int32 n_busses = _component->getBusCount (media, dir);
for (int32 i = 0; i < n_busses; ++i) {
Vst::BusInfo bus;
if (_component->getBusInfo (media, dir, i, bus) != kResultTrue) {
continue;
}
std::string bus_name = tchar_to_utf8 (bus.name);
if (media == Vst::kEvent && _io_name[media][dir].size () == 1) {
_io_name[media][dir][0].name = bus_name;
} else if (media == Vst::kAudio && _io_name[media][dir].size () == size_t(bus.channelCount)) {
for (int32_t j = 0; j < bus.channelCount; ++j) {
std::string channel_name;
if (bus.channelCount > 1) {
channel_name = string_compose ("%1 %2", bus_name, j + 1);
} else {
channel_name = bus_name;
}
_io_name[media][dir][j].name = channel_name;
}
}
}
}
}
}
if (flags & Vst::kParamTitlesChanged) {
/* titles or default values or flags have changed */
int32 n_params = _controller->getParameterCount ();
for (int32 i = 0; i < n_params; ++i) {
Vst::ParameterInfo pi;
if (_controller->getParameterInfo (i, pi) != kResultTrue) {
continue;
}
std::map<Vst::ParamID, uint32_t>::const_iterator idx = _ctrl_id_index.find (pi.id);
if (idx != _ctrl_id_index.end ()) {
Param& p (_ctrl_params[idx->second]);
p.label = tchar_to_utf8 (pi.title).c_str ();
p.normal = pi.defaultNormalizedValue;
}
}
// TODO notify GUI:
// * ProcessorEntry caches _controls
// * call RouteTimeAxisView::processors_changed
// invalidate Automatable::_controls ParameterDescriptor ?
}
if (flags & Vst::kIoChanged) {
warning << "VST3: Vst::kIoChanged (not implemented)" << endmsg;
#if 0