1 files changed, 15 insertions, 0 deletions
diff --git a/src/gui/kernel/qguiapplication.cpp b/src/gui/kernel/qguiapplication.cpp
index 5a95ebe848..4cd02c3d5b 100644
--- a/src/gui/kernel/qguiapplication.cpp
+++ b/src/gui/kernel/qguiapplication.cpp
@@ -61,6 +61,7 @@
 #include <qpalette.h>
 #include <qscreen.h>
 #include <private/qscreen_p.h>
+#include <private/qdrawhelper_p.h>
 
 #include <QtGui/QPlatformIntegration>
 #include <QtGui/QGenericPluginFactory>
@@ -764,6 +765,7 @@ QGuiApplicationPrivate::~QGuiApplicationPrivate()
     delete  platform_theme;
     delete platform_integration;
     platform_integration = 0;
+    delete m_gammaTables.load();
 }
 
 #if 0
@@ -2170,4 +2172,17 @@ void QGuiApplicationPrivate::notifyThemeChanged()
     }
 }
 
+const QDrawHelperGammaTables *QGuiApplicationPrivate::gammaTables()
+{
+    QDrawHelperGammaTables *result = m_gammaTables.load();
+    if (!result){
+        const qreal smoothing = qApp->styleHints()->fontSmoothingGamma();
+        QDrawHelperGammaTables *tables = new QDrawHelperGammaTables(smoothing);
+        if (!m_gammaTables.testAndSetRelease(0, tables))
+            delete tables;
+        result = m_gammaTables.load();
+    }
+    return result;
+}
+
 QT_END_NAMESPACE