Mercurial > fife-parpg
diff engine/core/vfs/dat/lzssdecoder.h @ 0:4a0efb7baf70
* Datasets becomes the new trunk and retires after that :-)
author | mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 |
---|---|
date | Sun, 29 Jun 2008 18:44:17 +0000 |
parents | |
children | 90005975cdbb |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/engine/core/vfs/dat/lzssdecoder.h Sun Jun 29 18:44:17 2008 +0000 @@ -0,0 +1,65 @@ +/*************************************************************************** + * Copyright (C) 2005-2006 by the FIFE Team * + * http://www.fifengine.de * + * This file is part of FIFE. * + * * + * FIFE 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 St, Fifth Floor, Boston, MA 02110-1301 USA * + ***************************************************************************/ + +#ifndef FIFE_LZSSDECODER_H +#define FIFE_LZSSDECODER_H + +// Standard C++ library includes + +// 3rd party library includes + +// FIFE includes +#include "util/base/fife_stdint.h" +#include "vfs/vfs.h" + +namespace FIFE { + /** A helper class for unpacking LZSS encoded data + * @bug just a quick&dirty LZSS implementation, optimized a bit + * see revision 719 for the original one and 795 for the broken optimized one + * @bug the lzss decoder might very well crash on corrupt data. + */ + class LZSSDecoder { + public: + /** Constructor + */ + LZSSDecoder(); + + /** Destructor + */ + ~LZSSDecoder(); + + /** Decodes from a file into a pointer. + * @param input The VFS file to read from + * @param output The memory location to write to + * @param outputsize The size of the memory location in byte + */ + void decode(RawData* input, uint8_t* output, const uint32_t outputsize); + + private: + uint32_t m_outlen; + uint32_t m_outindex; + void LZSSDecode(uint8_t* in, long len, uint8_t* out); + + }; + +} + +#endif