mirror of
https://github.com/openmoh/openmohaa.git
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52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
/*
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===========================================================================
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Copyright (C) 2015 the OpenMoHAA team
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This file is part of OpenMoHAA source code.
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OpenMoHAA source code is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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OpenMoHAA source code is distributed in the hope that it will be
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useful, 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 OpenMoHAA source code; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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===========================================================================
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*/
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// lz77.h: LZ77 Compression Algorithm
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#pragma once
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#include <cstddef>
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class cLZ77 {
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static unsigned int m_pDictionary[];
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unsigned char *ip;
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unsigned char *op;
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unsigned char *in_end;
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unsigned char *ip_end;
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unsigned char *ii;
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unsigned char *m_pos;
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unsigned int m_off;
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unsigned int m_len;
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unsigned int dindex;
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public:
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cLZ77();
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int Compress( unsigned char *in, size_t in_len, unsigned char *out, size_t *out_len );
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int Decompress( unsigned char *in, size_t in_len, unsigned char *out, size_t *out_len );
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private:
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unsigned int CompressData( unsigned char *in, size_t in_len, unsigned char *out, size_t *out_len );
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};
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extern cLZ77 g_lz77;
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