From 44db412b8dc84ce6ecaba0a9f12e7c4541bd3dd3 Mon Sep 17 00:00:00 2001
From: baldurk <baldurk@baldurk.org>
Date: Mon, 22 Mar 2021 17:00:02 +0000
Subject: [PATCH] Speculative workaround for
 QWidgetPrivate::subtractOpaqueSiblings crash

---
 qrenderdoc/Code/qrenderdoc.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/qrenderdoc/Code/qrenderdoc.cpp b/qrenderdoc/Code/qrenderdoc.cpp
index 73519051c..46f85926b 100644
--- a/qrenderdoc/Code/qrenderdoc.cpp
+++ b/qrenderdoc/Code/qrenderdoc.cpp
@@ -86,6 +86,11 @@ int main(int argc, char *argv[])
 
   qInstallMessageHandler(sharedLogOutput);
 
+  // there seems to be a persistent crash in QWidgetPrivate::subtractOpaqueSiblings where a widget
+  // has no parent but is not a window. Try to work around it by setting this env var, as it's only
+  // an optimisation
+  qputenv("QT_NO_SUBTRACTOPAQUESIBLINGS", lit("1").toUtf8());
+
   qInfo() << "QRenderDoc initialising.";
 
   if(IsRunningAsAdmin())