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diff --git a/engines/lab/utils.h b/engines/lab/utils.h
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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+/*
+ * This code is based on Labyrinth of Time code with assistance of
+ *
+ * Copyright (c) 1993 Terra Nova Development
+ * Copyright (c) 2004 The Wyrmkeep Entertainment Co.
+ *
+ */
+
+#ifndef LAB_UTILS_H
+#define LAB_UTILS_H
+
+namespace Lab {
+
+class Utils {
+private:
+	LabEngine *_vm;
+	uint16 _dataBytesPerRow;
+
+	void unDiffByteByte(byte *dest, byte *diff);
+	void unDiffByteWord(uint16 *dest, uint16 *diff);
+	void VUnDiffByteByte(byte *Dest, byte *diff, uint16 bytesperrow);
+	void VUnDiffByteWord(uint16 *Dest, uint16 *diff, uint16 bytesperrow);
+	void VUnDiffByteLong(uint32 *Dest, uint32 *diff, uint16 bytesperrow);
+
+public:
+	Utils(LabEngine *vm);
+	
+	uint16 scaleX(uint16 x);
+	uint16 scaleY(uint16 y);
+	int16 vgaScaleX(int16 x);
+	int16 vgaScaleY(int16 y);
+	uint16 svgaCord(uint16 cord);
+	int vgaUnscaleX(int x);
+	int vgaUnscaleY(int y);
+	void unDiff(byte *newBuf, byte *oldBuf, byte *diffData, uint16 bytesperrow, bool isV);
+	void runLengthDecode(byte *dest, byte *source);
+	void VRunLengthDecode(byte *dest, byte *source, uint16 bytesPerRow);
+	void setBytesPerRow(int num);
+};
+
+
+} // End of namespace Lab
+
+#endif // LAB_UTILS_H