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additional in-place check

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Robin Gareus 2016-05-24 18:04:29 +02:00
parent 1f17784ac5
commit a525055ce0
1 changed files with 24 additions and 0 deletions
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24
libs/ardour/plugin_insert.cc
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@ -1330,6 +1330,30 @@ PluginInsert::check_inplace ()
inplace_ok = false;
}
}
if (inplace_ok) {
/* check if every output is fed by the corresponding input
*
* this prevents in-port 1 -> sink-pin 2 || source-pin 1 -> out port 1, source-pin 2 -> out port 2
* (with in-place, source-pin 1 -> out port 1 overwrites in-port 1)
*
* but allows in-port 1 -> sink-pin 2 || source-pin 2 -> out port 1
*/
ChanMapping in_map (input_map ());
const ChanMapping::Mappings out_m (output_map ().mappings ());
for (ChanMapping::Mappings::const_iterator t = out_m.begin (); t != out_m.end () && inplace_ok; ++t) {
for (ChanMapping::TypeMapping::const_iterator c = (*t).second.begin (); c != (*t).second.end () ; ++c) {
/* src-pin: c->first, out-port: c->second */
bool valid;
uint32_t in_port = in_map.get (t->first, c->first, &valid);
if (valid && in_port != c->second) {
inplace_ok = false;
break;
}
}
}
}
DEBUG_TRACE (DEBUG::ChanMapping, string_compose ("%1: %2\n", name(), inplace_ok ? "In-Place" : "No Inplace Processing"));
return !inplace_ok; // no-inplace
}