From 001b9da6d892febd5f2052072ddc62cf90afe417 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Gr=C3=A4=C3=9Flin?= <mgraesslin@kde.org>
Date: Sun, 24 Apr 2011 20:20:01 +0200
Subject: [PATCH] Perform glFlush before deleting the EffectFrame's pixmaps

On NVIDIA it is possible that the actual rendering gets delayed to
after the deletion of the pixmap during the end of fullscreen effects.
This was causing freezes. By using glFlush before deleting the pixmaps
we can ensure that the pixmap is not needed anymore after the pixmaps
are deleted.

BUG: 261323
FIXED-IN: 4.6.3
---
 scene_opengl.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scene_opengl.cpp b/scene_opengl.cpp
index fc249ce85a..a3a8da8246 100644
--- a/scene_opengl.cpp
+++ b/scene_opengl.cpp
@@ -1082,6 +1082,7 @@ SceneOpenGL::EffectFrame::~EffectFrame()
 
 void SceneOpenGL::EffectFrame::free()
 {
+    glFlush();
     delete m_texture;
     m_texture = NULL;
     delete m_textTexture;