mirror of https://github.com/libAthena/athena.git
86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
/* lzo1b_xx.c -- LZO1B compression public entry point
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This file is part of the LZO real-time data compression library.
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Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
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All Rights Reserved.
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The LZO library is free software; you can redistribute it and/or
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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
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the License, or (at your option) any later version.
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The LZO library 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 the LZO library; see the file COPYING.
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If not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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Markus F.X.J. Oberhumer
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<markus@oberhumer.com>
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http://www.oberhumer.com/opensource/lzo/
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*/
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#include "config1b.h"
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/***********************************************************************
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//
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************************************************************************/
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static const lzo_compress_t* const c_funcs [9] =
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{
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&_lzo1b_1_compress_func,
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&_lzo1b_2_compress_func,
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&_lzo1b_3_compress_func,
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&_lzo1b_4_compress_func,
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&_lzo1b_5_compress_func,
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&_lzo1b_6_compress_func,
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&_lzo1b_7_compress_func,
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&_lzo1b_8_compress_func,
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&_lzo1b_9_compress_func
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};
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static lzo_compress_t lzo1b_get_compress_func(int clevel)
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{
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const lzo_compress_t* f;
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if (clevel < LZO1B_BEST_SPEED || clevel > LZO1B_BEST_COMPRESSION)
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{
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if (clevel == LZO1B_DEFAULT_COMPRESSION)
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clevel = LZO1B_BEST_SPEED;
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else
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return (lzo_compress_t) 0;
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}
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f = c_funcs[clevel - 1];
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assert(f && *f);
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return *f;
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}
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LZO_PUBLIC(int)
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lzo1b_compress(const lzo_bytep src, lzo_uint src_len,
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lzo_bytep dst, lzo_uintp dst_len,
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lzo_voidp wrkmem,
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int clevel)
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{
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lzo_compress_t f;
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f = lzo1b_get_compress_func(clevel);
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if (!f)
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return LZO_E_ERROR;
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return _lzo1b_do_compress(src, src_len, dst, dst_len, wrkmem, f);
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}
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/* vim:set ts=4 sw=4 et: */
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