Avoid showing garbage when resizing the rendercontrol example

The threaded variant was working well since that triggers a render
when resizing. The single threaded version lacked this and this
resulted in showing garbage on OS X at least since the new FBO had
undefined contents. Avoid this.

Task-number: QTBUG-45613
Change-Id: Ibb3d3f7640bab5da913df1c0c63cc3a3aaafb140
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/examples/quick/rendercontrol/window_singlethreaded.cpp b/examples/quick/rendercontrol/window_singlethreaded.cpp
index 5377c56376..fb6dc2d223 100644
--- a/examples/quick/rendercontrol/window_singlethreaded.cpp
+++ b/examples/quick/rendercontrol/window_singlethreaded.cpp
@@ -255,6 +255,7 @@ void WindowSingleThreaded::resizeEvent(QResizeEvent *)
         createFbo();
         m_context->doneCurrent();
         updateSizes();
+        render();
     }
 }