From bbfc573b15876bf05eb5c64ccd4a729e8d5d12aa Mon Sep 17 00:00:00 2001
From: psi29a <psi29a@gmail.com>
Date: Wed, 17 Aug 2022 21:19:14 +0000
Subject: [PATCH] Merge branch 'windows_save' into 'master'

[Postprocessing] Mitigate clashes with live reload and external saves on windows

See merge request OpenMW/openmw!2237

(cherry picked from commit 92f3b4ba82e96d53e36212d3e824de4d13551552)

0f9a7594 wait a brief moment before reading a file marked as modified
---
 apps/openmw/mwrender/postprocessor.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/apps/openmw/mwrender/postprocessor.cpp b/apps/openmw/mwrender/postprocessor.cpp
index 4eb410ad29..cdbb8d5618 100644
--- a/apps/openmw/mwrender/postprocessor.cpp
+++ b/apps/openmw/mwrender/postprocessor.cpp
@@ -1,6 +1,8 @@
 #include "postprocessor.hpp"
 
 #include <algorithm>
+#include <chrono>
+#include <thread>
 #include <SDL_opengl_glext.h>
 
 #include <osg/Texture1D>
@@ -376,6 +378,10 @@ namespace MWRender
             if (!isDirty)
                 continue;
 
+            // TODO: Temporary workaround to avoid conflicts with external programs saving the file, especially problematic on Windows.
+            //       If we move to a file watcher using native APIs this should be removed.
+            std::this_thread::sleep_for(std::chrono::milliseconds(5));
+
             if (technique->compile())
                 Log(Debug::Info) << "Reloaded technique : " << mTechniqueFileMap[technique->getName()].string();