xref: /isa-l/igzip/igzip_level_buf_structs.h (revision 55fbfabfc60f1002bc8133b730a59f6abd22cfce)

#ifndef IGZIP_LEVEL_BUF_STRUCTS_H
#define IGZIP_LEVEL_BUF_STRUCTS_H

#include "igzip_lib.h"
#include "huff_codes.h"
#include "encode_df.h"

#define MATCH_BUF_SIZE (4 * 1024)

struct hash8k_buf {
        uint16_t hash_table[IGZIP_HASH8K_HASH_SIZE];
};

struct hash_hist_buf {
        uint16_t hash_table[IGZIP_HASH_HIST_SIZE];
};

struct hash_map_buf {
        uint16_t hash_table[IGZIP_HASH_MAP_HASH_SIZE];
        struct deflate_icf *matches_next;
        struct deflate_icf *matches_end;
        struct deflate_icf matches[MATCH_BUF_SIZE];
        struct deflate_icf overflow[ISAL_LOOK_AHEAD];
};

#define MAX_LVL_BUF_SIZE sizeof(struct hash_map_buf)

struct level_buf {
        struct hufftables_icf encode_tables;
        struct isal_mod_hist hist;
        uint32_t deflate_hdr_count;
        uint32_t deflate_hdr_extra_bits;
        uint8_t deflate_hdr[ISAL_DEF_MAX_HDR_SIZE];
        struct deflate_icf *icf_buf_next;
        uint64_t icf_buf_avail_out;
        struct deflate_icf *icf_buf_start;
        union {
                struct hash8k_buf hash8k;
                struct hash_hist_buf hash_hist;
                struct hash_map_buf hash_map;

                struct hash8k_buf lvl1;
                struct hash_hist_buf lvl2;
                struct hash_map_buf lvl3;
        };
};

#endif