diff --git a/platformsupport/scenes/opengl/texture.h b/platformsupport/scenes/opengl/texture.h
index d574b0cb5..5024f733a 100644
--- a/platformsupport/scenes/opengl/texture.h
+++ b/platformsupport/scenes/opengl/texture.h
@@ -1,76 +1,70 @@
 /********************************************************************
  KWin - the KDE window manager
  This file is part of the KDE project.
 
 Copyright (C) 2006 Lubos Lunak <l.lunak@kde.org>
 Copyright (C) 2009, 2010, 2011 Martin Gräßlin <mgraesslin@kde.org>
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2 of the License, or
 (at your option) any later version.
 
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *********************************************************************/
-#ifndef KWIN_SCENE_OPENGL_TEXTURE_H
-#define KWIN_SCENE_OPENGL_TEXTURE_H
+#pragma once
 
 #include <kwingltexture.h>
 #include <kwingltexture_p.h>
 
 namespace KWin
 {
 
 class OpenGLBackend;
-class WindowPixmap;
 class SceneOpenGLTexturePrivate;
+class WindowPixmap;
 
-class SceneOpenGLTexture
-    : public GLTexture
+class SceneOpenGLTexture : public GLTexture
 {
 public:
-    SceneOpenGLTexture(OpenGLBackend *backend);
-    virtual ~SceneOpenGLTexture();
+    explicit SceneOpenGLTexture(OpenGLBackend *backend);
+    ~SceneOpenGLTexture() override;
 
     SceneOpenGLTexture & operator = (const SceneOpenGLTexture& tex);
 
     void discard() override final;
 
-protected:
+private:
+    SceneOpenGLTexture(SceneOpenGLTexturePrivate& dd);
+
     bool load(WindowPixmap *pixmap);
     void updateFromPixmap(WindowPixmap *pixmap);
 
-    SceneOpenGLTexture(SceneOpenGLTexturePrivate& dd);
-
-private:
     Q_DECLARE_PRIVATE(SceneOpenGLTexture)
 
     friend class OpenGLWindowPixmap;
 };
 
-class SceneOpenGLTexturePrivate
-    : public GLTexturePrivate
+class SceneOpenGLTexturePrivate : public GLTexturePrivate
 {
 public:
-    virtual ~SceneOpenGLTexturePrivate();
+    ~SceneOpenGLTexturePrivate() override;
 
     virtual bool loadTexture(WindowPixmap *pixmap) = 0;
     virtual void updateTexture(WindowPixmap *pixmap);
     virtual OpenGLBackend *backend() = 0;
 
 protected:
     SceneOpenGLTexturePrivate();
 
 private:
     Q_DISABLE_COPY(SceneOpenGLTexturePrivate)
 };
 
 }
-
-#endif