diff options
Diffstat (limited to 'lzf_c.c')
| -rw-r--r-- | lzf_c.c | 5 |
1 files changed, 3 insertions, 2 deletions
@@ -50,11 +50,12 @@ # define FRST(p) (((p[0]) << 8) | p[1]) # define NEXT(v,p) (((v) << 8) | p[2]) # define IDX(h) ((((h ^ (h << 5)) >> (3*8 - HLOG)) - h*5) & (HSIZE - 1)) +//# define IDX(h) ((ip[0] * 121 ^ ip[1] * 33 ^ ip[2] * 1) & (HSIZE-1)) #endif /* * IDX works because it is very similar to a multiplicative hash, e.g. * ((h * 57321 >> (3*8 - HLOG)) & (HSIZE - 1)) - * the latter is also quite fast on newer CPUs, and sligthly better + * the latter is also quite fast on newer CPUs, and compresses similarly. * * the next one is also quite good, albeit slow ;) * (int)(cos(h & 0xffffff) * 1e6) @@ -69,7 +70,7 @@ #define MAX_LIT (1 << 5) #define MAX_OFF (1 << 13) -#define MAX_REF ((1 << 8) + (1 << 3)) +#define MAX_REF ((1 << 8) + (1 << 3)) /* * compressed format |