[OMPT-svn-commit] OpenMPT r21556 - trunk/OpenMPT/pluginBridge

[<sv...@op...>]

Author: sagamusix
Date: Sat Aug 31 15:53:58 2024
New Revision: 21556
URL: https://source.openmpt.org/browse/openmpt/?op=revision&rev=21556

Log:
[Fix] Avoid crash in plugin bridge if plugin changes channel configuration without telling us (observed with Surge XT via vst3ishell, https://bugs.openmpt.org/view.php?id=1807).

Modified:
   trunk/OpenMPT/pluginBridge/Bridge.cpp

Modified: trunk/OpenMPT/pluginBridge/Bridge.cpp
==============================================================================
--- trunk/OpenMPT/pluginBridge/Bridge.cpp	Sat Aug 31 14:20:12 2024	(r21555)
+++ trunk/OpenMPT/pluginBridge/Bridge.cpp	Sat Aug 31 15:53:58 2024	(r21556)
@@ -476,6 +476,9 @@
 		// [value]: 0 means "turn off", 1 means "turn on"
 		::SetThreadPriority(m_audioThread, msg.value ? THREAD_PRIORITY_ABOVE_NORMAL : THREAD_PRIORITY_NORMAL);
 		m_sharedMem->tailSize = static_cast<int32>(Dispatch(effGetTailSize, 0, 0, nullptr, 0.0f));
+		// Plugin should tell us if number of channels changes through audioMasterIOChanged, but Surge XT via vst3ishell has been observed not to do that.
+		if(msg.value)
+			DispatchToHost(audioMasterVendorSpecific, kVendorOpenMPT, kUpdateProcessingBuffer, nullptr, 0.0f);
 		break;
 
 	case effEditGetRect: