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VST3: offer output bus configurations

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This commit is contained in:
Robin Gareus 2023-01-06 00:52:02 +01:00
parent 1cbd2d3468
commit f221a5e47f
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
1 changed files with 48 additions and 1 deletions
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49
libs/ardour/vst3_plugin.cc
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@ -275,7 +275,54 @@ VST3Plugin::describe_io_port (ARDOUR::DataType dt, bool input, uint32_t id) cons
PluginOutputConfiguration
VST3Plugin::possible_output () const
{
return Plugin::possible_output (); // TODO
auto const& bi (_plug->bus_info_out ());
if (bi.size() < 2) {
return Plugin::possible_output ();
}
#if 0
PluginOutputConfiguration oc;
int32_t sum = 0;
for (auto const& n : bi) {
sum += n.second.n_chn;
oc.insert (sum);
}
return oc;
#else
/* first main out, + individual stereo main outs, +all main outs, + individual aux outs */
auto i = bi.begin ();
int32_t sum = i->second.n_chn;
bool seen_aux = i->second.type == Vst::kAux;
bool seen_mono = sum == 1;
PluginOutputConfiguration oc;
oc.insert (sum);
for (++i; i != bi.end (); ++i) {
if (seen_aux || seen_mono) {
sum += i->second.n_chn;
oc.insert (sum);
}
else if (i->second.type == Vst::kAux) {
oc.insert (sum);
seen_aux = true;
sum += i->second.n_chn;
oc.insert (sum);
} else {
sum += i->second.n_chn;
if (i->second.n_chn == 1) {
seen_mono = true;
oc.insert (sum);
} else if (!seen_mono) {
oc.insert (sum);
}
}
}
if (!seen_aux && seen_mono) {
oc.insert (sum);
}
return oc;
#endif
}
/* ****************************************************************************