2 files changed, 8 insertions, 0 deletions
diff --git a/src/gui/painting/qplatformbackingstore.cpp b/src/gui/painting/qplatformbackingstore.cpp
index d2b1f056d7..a77fbb6826 100644
--- a/src/gui/painting/qplatformbackingstore.cpp
+++ b/src/gui/painting/qplatformbackingstore.cpp
@@ -156,6 +156,12 @@ void QPlatformTextureList::appendTexture(GLuint textureId, const QRect &geometry
     bi.rect = geometry;
     d->textures.append(bi);
 }
+
+void QPlatformTextureList::clear()
+{
+    Q_D(QPlatformTextureList);
+    d->textures.clear();
+}
 #endif // QT_NO_OPENGL
 
 /*!
diff --git a/src/gui/painting/qplatformbackingstore.h b/src/gui/painting/qplatformbackingstore.h
index a662a2290b..76fd3d40b4 100644
--- a/src/gui/painting/qplatformbackingstore.h
+++ b/src/gui/painting/qplatformbackingstore.h
@@ -81,12 +81,14 @@ public:
     ~QPlatformTextureList();
 
     int count() const;
+    bool isEmpty() const { return count() == 0; }
     GLuint textureId(int index) const;
     QRect geometry(int index) const;
     void lock(bool on);
     bool isLocked() const;
 
     void appendTexture(GLuint textureId, const QRect &geometry);
+    void clear();
 
  Q_SIGNALS:
     void locked(bool);