ceph/src/isa-l/igzip/encode_df.h

   1 #ifndef ENCODE_DF_H
   2 #define ENCODE_DF_H
   3
   4 #include <stdint.h>
   5 #include "huff_codes.h"
   6
   7 /* Deflate Intermediate Compression Format */
   8 #define LIT_LEN_BIT_COUNT 10
   9 #define DIST_LIT_BIT_COUNT 9
  10 #define ICF_DIST_OFFSET LIT_LEN_BIT_COUNT
  11 #define NULL_DIST_SYM 30
  12
  13 struct deflate_icf {
  14         uint32_t lit_len:LIT_LEN_BIT_COUNT;
  15         uint32_t lit_dist:DIST_LIT_BIT_COUNT;
  16         uint32_t dist_extra:32 - DIST_LIT_BIT_COUNT - ICF_DIST_OFFSET;
  17 };
  18
  19 struct deflate_icf *encode_deflate_icf(struct deflate_icf *next_in, struct deflate_icf *end_in,
  20                                        struct BitBuf2 *bb, struct hufftables_icf * hufftables);
  21 #endif