ardour/livetrax
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Improve plugin hide logic to prevent crashes when trying to insert fully audio plugins into MIDI tracks.

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git-svn-id: svn://localhost/ardour2/branches/3.0@10232 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Carl Hetherington 2011-10-19 14:26:16 +00:00
parent cb58ca535f
commit 52caae3971
1 changed files with 8 additions and 3 deletions
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11
libs/ardour/plugin_insert.cc
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@ -803,17 +803,22 @@ PluginInsert::private_can_support_io_configuration (ChanCount const & in, ChanCo
by feeding them silence.
*/
bool can_hide = false;
bool could_hide = false;
bool cannot_hide = false;
ChanCount hide_channels;
for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
if (inputs.get(*t) > in.get(*t)) {
/* there is potential to hide, since the plugin has more inputs of type t than the insert */
hide_channels.set (*t, inputs.get(*t) - in.get(*t));
can_hide = true;
could_hide = true;
} else if (inputs.get(*t) < in.get(*t)) {
/* we definitely cannot hide, since the plugin has fewer inputs of type t than the insert */
cannot_hide = true;
}
}
if (can_hide) {
if (could_hide && !cannot_hide) {
out = outputs;
return Match (Hide, 1, hide_channels);
}