From c77d2d42b9f3e7e3db6842b8312def760b2bca70 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Tue, 27 Aug 2024 21:56:17 +0200
Subject: [PATCH] VST3: fix runloop query (amend 83207e04e78)

The plugin itself needs to be able to return a runloop,
for the UI, even if the factory has one.
---
 libs/ardour/vst3_plugin.cc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libs/ardour/vst3_plugin.cc b/libs/ardour/vst3_plugin.cc
index 2360efb9b0..6ff5509362 100644
--- a/libs/ardour/vst3_plugin.cc
+++ b/libs/ardour/vst3_plugin.cc
@@ -1517,6 +1517,12 @@ VST3PI::queryInterface (const TUID _iid, void** obj)
 
 	QUERY_INTERFACE (_iid, obj, IPlugFrame::iid, IPlugFrame)
 
+#if SMTG_OS_LINUX
+	if (FUnknownPrivate::iidEqual (_iid, Linux::IRunLoop::iid)) {
+		return HostApplication::getHostContext()->queryInterface (_iid, obj);
+	}
+#endif
+
 	if (DEBUG_ENABLED (DEBUG::VST3Config)) {
 		char fuid[33];
 		FUID::fromTUID (_iid).toString (fuid);