From 95d6a99c7f3b06b75b5f52f67c8769f41582f212 Mon Sep 17 00:00:00 2001
From: Andrei Kortunov <andrei.kortunov@yandex.ru>
Date: Mon, 22 Apr 2019 21:14:51 +0400
Subject: [PATCH] Do not use the CPU affinity of OSG viewer (bug #4785)

---
 apps/openmw/engine.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/apps/openmw/engine.cpp b/apps/openmw/engine.cpp
index 6dcd0977bf..e60a4e7924 100644
--- a/apps/openmw/engine.cpp
+++ b/apps/openmw/engine.cpp
@@ -674,6 +674,11 @@ void OMW::Engine::go()
     mViewer = new osgViewer::Viewer;
     mViewer->setReleaseContextAtEndOfFrameHint(false);
 
+#if OSG_VERSION_GREATER_OR_EQUAL(3,5,5)
+    // Do not try to outsmart the OS thread scheduler (see bug #4785).
+    mViewer->setUseConfigureAffinity(false);
+#endif
+
     mScreenCaptureOperation = new WriteScreenshotToFileOperation(mCfgMgr.getUserDataPath().string(),
         Settings::Manager::getString("screenshot format", "General"));