mirror of https://github.com/libAthena/athena.git
130 lines
3.0 KiB
C
130 lines
3.0 KiB
C
/* stats1b.h -- statistics for the the LZO library
|
|
|
|
This file is part of the LZO real-time data compression library.
|
|
|
|
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
|
|
All Rights Reserved.
|
|
|
|
The LZO library 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.
|
|
|
|
The LZO library 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 the LZO library; see the file COPYING.
|
|
If not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
|
|
Markus F.X.J. Oberhumer
|
|
<markus@oberhumer.com>
|
|
http://www.oberhumer.com/opensource/lzo/
|
|
*/
|
|
|
|
|
|
/* WARNING: this file should *not* be used by applications. It is
|
|
part of the implementation of the library and is subject
|
|
to change.
|
|
*/
|
|
|
|
|
|
#ifndef __LZO_STATS1B_H
|
|
#define __LZO_STATS1B_H 1
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
/***********************************************************************
|
|
// Collect statistical information when compressing.
|
|
// Useful for finetuning the compression algorithm.
|
|
// Examine the symbol 'lzo1b_stats' with a debugger.
|
|
************************************************************************/
|
|
|
|
#if (LZO_COLLECT_STATS)
|
|
# define LZO_STATS(expr) expr
|
|
#else
|
|
# define LZO_STATS(expr) ((void) 0)
|
|
#endif
|
|
|
|
|
|
#if (LZO_COLLECT_STATS)
|
|
|
|
typedef struct
|
|
{
|
|
/* algorithm configuration */
|
|
unsigned r_bits;
|
|
unsigned m3o_bits;
|
|
unsigned dd_bits;
|
|
unsigned clevel;
|
|
|
|
/* internal configuration */
|
|
unsigned d_bits;
|
|
long min_lookahead;
|
|
long max_lookbehind;
|
|
const char* compress_id;
|
|
|
|
/* counts */
|
|
long lit_runs;
|
|
long r0short_runs;
|
|
long r0fast_runs;
|
|
long r0long_runs;
|
|
long m1_matches;
|
|
long m2_matches;
|
|
long m3_matches;
|
|
long m4_matches;
|
|
long r1_matches;
|
|
|
|
/* */
|
|
long lit_run[R0MIN];
|
|
long m2_match[M2_MAX_LEN + 1];
|
|
long m3_match[M3_MAX_LEN + 1];
|
|
#if (M3O_BITS < 8)
|
|
long lit_runs_after_m3_match;
|
|
long lit_run_after_m3_match[LZO_SIZE(8 - M3O_BITS)];
|
|
#endif
|
|
|
|
/* */
|
|
long matches;
|
|
long match_bytes;
|
|
long literals;
|
|
long literal_overhead;
|
|
long literal_bytes;
|
|
double literal_overhead_percent;
|
|
|
|
/* */
|
|
long unused_dict_entries;
|
|
double unused_dict_entries_percent;
|
|
|
|
/* */
|
|
long in_len;
|
|
long out_len;
|
|
}
|
|
lzo1b_stats_t;
|
|
|
|
|
|
void _lzo1b_stats_init(lzo1b_stats_t* lzo_stats);
|
|
void _lzo1b_stats_calc(lzo1b_stats_t* lzo_stats);
|
|
|
|
extern lzo1b_stats_t* const lzo1b_stats;
|
|
|
|
#define lzo_stats_t lzo1b_stats_t
|
|
#define lzo_stats lzo1b_stats
|
|
|
|
#endif
|
|
|
|
|
|
#ifdef __cplusplus
|
|
} /* extern "C" */
|
|
#endif
|
|
|
|
#endif /* already included */
|
|
|
|
|
|
/* vim:set ts=4 sw=4 et: */
|