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 #include "crc32_fold.h" 11 #include "adler32_fold.h" 12 13 struct functable_s { 14 uint32_t (* adler32) (uint32_t adler, const unsigned char *buf, size_t len); 15 uint32_t (* adler32_fold_copy) (uint32_t adler, uint8_t *dst, const uint8_t *src, size_t len); 16 uint32_t (* crc32) (uint32_t crc, const unsigned char *buf, uint64_t len); 17 uint32_t (* crc32_fold_reset) (crc32_fold *crc); 18 void (* crc32_fold_copy) (crc32_fold *crc, uint8_t *dst, const uint8_t *src, size_t len); 19 void (* crc32_fold) (crc32_fold *crc, const uint8_t *src, size_t len, uint32_t init_crc); 20 uint32_t (* crc32_fold_final) (crc32_fold *crc); 21 uint32_t (* compare256) (const uint8_t *src0, const uint8_t *src1); 22 uint32_t (* chunksize) (void); 23 uint8_t* (* chunkcopy) (uint8_t *out, uint8_t const *from, unsigned len); 24 uint8_t* (* chunkunroll) (uint8_t *out, unsigned *dist, unsigned *len); 25 uint8_t* (* chunkmemset) (uint8_t *out, unsigned dist, unsigned len); 26 uint8_t* (* chunkmemset_safe) (uint8_t *out, unsigned dist, unsigned len, unsigned left); 27 void (* insert_string) (deflate_state *const s, uint32_t str, uint32_t count); 28 uint32_t (* longest_match) (deflate_state *const s, Pos cur_match); 29 uint32_t (* longest_match_slow) (deflate_state *const s, Pos cur_match); 30 Pos (* quick_insert_string)(deflate_state *const s, uint32_t str); 31 void (* slide_hash) (deflate_state *s); 32 uint32_t (* update_hash) (deflate_state *const s, uint32_t h, uint32_t val); 33 }; 34 35 Z_INTERNAL extern Z_TLS struct functable_s functable; 36 37 #endif 38