mirror of
https://github.com/opencv/opencv.git
synced 2024-12-03 00:10:21 +08:00
25 lines
733 B
C
25 lines
733 B
C
|
/* insert_string_roll.c -- insert_string rolling hash variant
|
||
|
|
*
|
||
|
|
* Copyright (C) 1995-2013 Jean-loup Gailly and Mark Adler
|
||
|
|
* For conditions of distribution and use, see copyright notice in zlib.h
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "zbuild.h"
|
||
|
|
#include "deflate.h"
|
||
|
|
|
||
|
|
#define HASH_SLIDE 5
|
||
|
|
|
||
|
|
#define HASH_CALC(s, h, val) h = ((h << HASH_SLIDE) ^ ((uint8_t)val))
|
||
|
|
#define HASH_CALC_VAR s->ins_h
|
||
|
|
#define HASH_CALC_VAR_INIT
|
||
|
|
#define HASH_CALC_READ val = strstart[0]
|
||
|
|
#define HASH_CALC_MASK (32768u - 1u)
|
||
|
|
#define HASH_CALC_OFFSET (STD_MIN_MATCH-1)
|
||
|
|
|
||
|
|
#define UPDATE_HASH update_hash_roll
|
||
|
|
#define INSERT_STRING insert_string_roll
|
||
|
|
#define QUICK_INSERT_STRING quick_insert_string_roll
|
||
|
|
|
||
|
|
#include "insert_string_tpl.h"
|