properly ask Qt to create qml opengl surface with proper options

should prevent context losses error with some opengl drivers

should prevent corruptions to occur with come opengl drivers

Signed-off-by: Matthieu Gallien <matthieu.gallien@nextcloud.com>

src/gui/main.cpp

@@ -93,6 +93,11 @@ int main(int argc, char **argv)
 #ifdef Q_OS_MAC
     Mac::CocoaInitializer cocoaInit; // RIIA
 #endif
+
+    auto surfaceFormat = QSurfaceFormat::defaultFormat();
+    surfaceFormat.setOption(QSurfaceFormat::ResetNotification);
+    QSurfaceFormat::setDefaultFormat(surfaceFormat);
+
     OCC::Application app(argc, argv);
 
 #ifdef Q_OS_WIN
@@ -126,10 +131,6 @@ int main(int argc, char **argv)
     }
 #endif
 
-    auto surfaceFormat = QSurfaceFormat::defaultFormat();
-    surfaceFormat.setOption(QSurfaceFormat::ResetNotification);
-    QSurfaceFormat::setDefaultFormat(surfaceFormat);
-
 // check a environment variable for core dumps
 #ifdef Q_OS_UNIX
     if (!qEnvironmentVariableIsEmpty("OWNCLOUD_CORE_DUMP")) {