2 files changed, 19 insertions, 4 deletions
diff --git a/src/opengl/qgraphicssystem_gl.cpp b/src/opengl/qgraphicssystem_gl.cpp
index 0aa3c2e..5a01d8c 100644
--- a/src/opengl/qgraphicssystem_gl.cpp
+++ b/src/opengl/qgraphicssystem_gl.cpp
@@ -104,11 +104,17 @@ QWindowSurface *QGLGraphicsSystem::createWindowSurface(QWidget *widget) const
 
     return new QGLWindowSurface(widget);
 }
-#ifdef QGL_USE_TEXTURE_POOL
-void QGLGraphicsSystem::releaseCachedResources()
+#ifdef Q_OS_SYMBIAN
+void QGLGraphicsSystem::releaseCachedGpuResources()
 {
     QGLTexturePool::instance()->hibernate();
 }
+
+QGraphicsSystemEx* QGLGraphicsSystem::platformExtension()
+{
+    return this;
+}
 #endif
+
 QT_END_NAMESPACE
 
diff --git a/src/opengl/qgraphicssystem_gl_p.h b/src/opengl/qgraphicssystem_gl_p.h
index 5829dcc..5372443 100644
--- a/src/opengl/qgraphicssystem_gl_p.h
+++ b/src/opengl/qgraphicssystem_gl_p.h
@@ -55,11 +55,19 @@
 
 #include "private/qgraphicssystem_p.h"
 
+#ifdef Q_OS_SYMBIAN
+#include "private/qgraphicssystemex_symbian_p.h"
+#endif
+
 #include <QMap>
 
 QT_BEGIN_NAMESPACE
 
 class Q_OPENGL_EXPORT QGLGraphicsSystem : public QGraphicsSystem
+#ifdef Q_OS_SYMBIAN
+    , public QSymbianGraphicsSystemEx
+#endif
+
 {
 public:
     QGLGraphicsSystem(bool useX11GL);
@@ -67,8 +75,9 @@ public:
     QPixmapData *createPixmapData(QPixmapData::PixelType type) const;
     QWindowSurface *createWindowSurface(QWidget *widget) const;
 
-#ifdef QGL_USE_TEXTURE_POOL
-    void releaseCachedResources();
+#ifdef Q_OS_SYMBIAN
+    void releaseCachedGpuResources();
+    QGraphicsSystemEx* platformExtension();
 #endif
 private:
     bool m_useX11GL;