mirror of
https://github.com/libretro/scummvm.git
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84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#ifndef TOON_TOOLS_H
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#define TOON_TOOLS_H
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#include "common/scummsys.h"
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#include "common/endian.h"
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#define RNC1_SIGNATURE 0x524E4301 // "RNC\001"
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#define RNC2_SIGNATURE 0x524E4302 // "RNC\002"
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namespace Toon {
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const uint32 kCompLZSS = 0x4C5A5353;
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const uint32 kCompSPCN = 0x5350434E;
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const uint32 kCompRNC1 = 0x524E4301;
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const uint32 kCompRNC2 = 0x524E4302;
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#define READ_LE_INT16(x) (int16) READ_LE_UINT16(x)
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#define READ_LE_INT32(x) (int32) READ_LE_UINT32(x)
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#define WRITE_LE_INT16(x,y) WRITE_LE_UINT16(x,(int16)y)
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#define WRITE_LE_INT32(x,y) WRITE_LE_UINT32(x,(int32)y)
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uint32 decompressSPCN(byte *src, byte *dst, uint32 dstsize);
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uint32 decompressLZSS(byte *src, byte *dst, int dstsize);
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class RncDecoder {
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protected:
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uint16 _rawTable[64];
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uint16 _posTable[64];
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uint16 _lenTable[64];
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uint16 _crcTable[256];
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uint16 _bitBuffl;
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uint16 _bitBuffh;
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uint8 _bitCount;
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const uint8 *_srcPtr;
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uint8 *_dstPtr;
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public:
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RncDecoder();
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~RncDecoder();
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int32 unpackM1(const void *input, void *output);
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int32 unpackM2(const void *input, void *output);
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protected:
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void initCrc();
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uint16 crcBlock(const uint8 *block, uint32 size);
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uint16 inputBits(uint8 amount);
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void makeHufftable(uint16 *table);
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uint16 inputValue(uint16 *table);
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int getbit();
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};
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} // End of namespace Toon
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#endif
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