/* 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; uint16 _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