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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.
*
*/
#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;
int16 _inputByteLeft;
public:
RncDecoder();
~RncDecoder();
int32 unpackM1(const void *input, uint16 inputSize, 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
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