1/* functable.h -- Struct containing function pointers to optimized functions
2 * Copyright (C) 2017 Hans Kristian Rosbach
3 * For conditions of distribution and use, see copyright notice in zlib.h
4 */
5
6#ifndef FUNCTABLE_H_
7#define FUNCTABLE_H_
8
9#include "deflate.h"
10
11struct functable_s {
12 void (* insert_string) (deflate_state *const s, const uint32_t str, uint32_t count);
13 Pos (* quick_insert_string)(deflate_state *const s, const uint32_t str);
14 uint32_t (* adler32) (uint32_t adler, const unsigned char *buf, size_t len);
15 uint32_t (* crc32) (uint32_t crc, const unsigned char *buf, uint64_t len);
16 void (* slide_hash) (deflate_state *s);
17 uint32_t (* compare258) (const unsigned char *src0, const unsigned char *src1);
18 uint32_t (* longest_match) (deflate_state *const s, Pos cur_match);
19 uint32_t (* chunksize) (void);
20 uint8_t* (* chunkcopy) (uint8_t *out, uint8_t const *from, unsigned len);
21 uint8_t* (* chunkcopy_safe) (uint8_t *out, uint8_t const *from, unsigned len, uint8_t *safe);
22 uint8_t* (* chunkunroll) (uint8_t *out, unsigned *dist, unsigned *len);
23 uint8_t* (* chunkmemset) (uint8_t *out, unsigned dist, unsigned len);
24 uint8_t* (* chunkmemset_safe) (uint8_t *out, unsigned dist, unsigned len, unsigned left);
25};
26
27Z_INTERNAL extern Z_TLS struct functable_s functable;
28
29#endif
30