--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uiacceltk/hitchcock/coretoolkit/inc/MatrixStack.h	Tue Feb 02 07:56:43 2010 +0200
@@ -0,0 +1,83 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+
+#ifndef MATRIX_STACK_H
+#define MATRIX_STACK_H
+
+#include "Matrix.h"
+
+namespace shadergen
+{
+
+
+class MatrixStack
+{
+public:
+	static const int MATRIX_STACK_DEPTH = 16;
+
+	/*!
+	 * \brief
+	 * Default constructor. Initializes sp to 0.
+	 */
+	MatrixStack (void)
+	{
+		m_currDepth = 0;
+	}
+
+	/*!
+	 * \brief
+	 * glPushMatrix() implementation.
+	 */
+	void push (void)
+	{
+		SG_ASSERT(SG_IN_RANGE<int>(m_currDepth, 0, MATRIX_STACK_DEPTH - 1));
+		memcpy(&m_data[m_currDepth + 1], &m_data[m_currDepth], sizeof(Matrix));
+		m_currDepth++;
+	}
+
+	/*!
+	 * \brief
+	 * glPopMatrix() implementation
+	 */
+	void pop (void)
+	{
+		SG_ASSERT(SG_IN_RANGE<int>(m_currDepth, 1, MATRIX_STACK_DEPTH - 0));
+		m_currDepth--;
+	}
+
+	/*!
+	 * \brief
+	 * Get the topmost matrix in the stack.
+	 * 
+	 * \returns
+	 * Returns the topmost matrix in the stack.
+	 */
+	Matrix& top (void)
+	{
+		SG_ASSERT(SG_IN_RANGE<int>(m_currDepth, 0, MATRIX_STACK_DEPTH - 1));
+		return m_data[m_currDepth];
+	}
+
+private:
+
+	int		m_currDepth;
+	Matrix	m_data[MATRIX_STACK_DEPTH];
+};
+
+} /* namespace shadergen */
+
+#endif /* MATRIX_STACK_H */