--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/demos/boxes/glextensions.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,98 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "glextensions.h"
+
+#define RESOLVE_GL_FUNC(f) ok &= bool((f = (_gl##f) context->getProcAddress(QLatin1String("gl" #f))));
+
+bool GLExtensionFunctions::resolve(const QGLContext *context)
+{
+	bool ok = true;
+
+	RESOLVE_GL_FUNC(GenFramebuffersEXT)
+	RESOLVE_GL_FUNC(GenRenderbuffersEXT)
+	RESOLVE_GL_FUNC(BindRenderbufferEXT)
+	RESOLVE_GL_FUNC(RenderbufferStorageEXT)
+	RESOLVE_GL_FUNC(DeleteFramebuffersEXT)
+	RESOLVE_GL_FUNC(DeleteRenderbuffersEXT)
+	RESOLVE_GL_FUNC(BindFramebufferEXT)
+	RESOLVE_GL_FUNC(FramebufferTexture2DEXT)
+	RESOLVE_GL_FUNC(FramebufferRenderbufferEXT)
+	RESOLVE_GL_FUNC(CheckFramebufferStatusEXT)
+
+        RESOLVE_GL_FUNC(ActiveTexture)
+	RESOLVE_GL_FUNC(TexImage3D)
+
+        RESOLVE_GL_FUNC(GenBuffers)
+	RESOLVE_GL_FUNC(BindBuffer)
+	RESOLVE_GL_FUNC(BufferData)
+	RESOLVE_GL_FUNC(DeleteBuffers)
+	RESOLVE_GL_FUNC(MapBuffer)
+	RESOLVE_GL_FUNC(UnmapBuffer)
+
+	return ok;
+}
+
+bool GLExtensionFunctions::fboSupported() {
+    return GenFramebuffersEXT
+	    && GenRenderbuffersEXT
+	    && BindRenderbufferEXT
+	    && RenderbufferStorageEXT
+	    && DeleteFramebuffersEXT
+	    && DeleteRenderbuffersEXT
+	    && BindFramebufferEXT
+	    && FramebufferTexture2DEXT
+	    && FramebufferRenderbufferEXT
+	    && CheckFramebufferStatusEXT;
+}
+
+bool GLExtensionFunctions::openGL15Supported() {
+    return ActiveTexture
+	    && TexImage3D
+            && GenBuffers
+	    && BindBuffer
+	    && BufferData
+	    && DeleteBuffers
+	    && MapBuffer
+	    && UnmapBuffer;
+}
+
+#undef RESOLVE_GL_FUNC