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diff --git a/engines/toon/tools.h b/engines/toon/tools.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.
+*
+* $URL$
+* $Id$
+*
+*/
+
+#ifndef TOON_TOOLS_H
+#define TOON_TOOLS_H
+
+#include "common/scummsys.h"
+#include "common/endian.h"
+
+#define RNC1_SIGNATURE   0x524E4301 // "RNC\001"
+#define RNC2_SIGNATURE   0x524E4302 // "RNC\002"
+
+namespace Toon {
+
+const uint32 kCompLZSS = 0x4C5A5353;
+const uint32 kCompSPCN = 0x5350434E;
+const uint32 kCompRNC1 = 0x524E4301;
+const uint32 kCompRNC2 = 0x524E4302;
+
+#define READ_LE_INT16(x) (int16) READ_LE_UINT16(x)
+#define READ_LE_INT32(x) (int32) READ_LE_UINT32(x)
+
+#define WRITE_LE_INT16(x,y)  WRITE_LE_UINT16(x,(int16)y)
+#define WRITE_LE_INT32(x,y)  WRITE_LE_UINT32(x,(int32)y)
+
+uint32 decompressSPCN(byte *src, byte *dst, uint32 dstsize);
+uint32 decompressLZSS(byte *src, byte *dst, int dstsize);
+
+class RncDecoder {
+
+protected:
+	uint16 _rawTable[64];
+	uint16 _posTable[64];
+	uint16 _lenTable[64];
+	uint16 _crcTable[256];
+
+	uint16 _bitBuffl;
+	uint16 _bitBuffh;
+	uint8 _bitCount;
+
+	const uint8 *_srcPtr;
+	uint8 *_dstPtr;
+
+public:
+	RncDecoder();
+	~RncDecoder();
+	int32 unpackM1(const void *input, void *output);
+	int32 unpackM2(const void *input, void *output);
+
+protected:
+	void initCrc();
+	uint16 crcBlock(const uint8 *block, uint32 size);
+	uint16 inputBits(uint8 amount);
+	void makeHufftable(uint16 *table);
+	uint16 inputValue(uint16 *table);
+	int getbit();
+};
+
+} // End of namespace Toon
+
+#endif