1999/1007/port/thwack.h (diff list | history)

1999/1001/sys/src/9/port/thwack.h:12,22 – 1999/1007/sys/src/9/port/thwack.h:12,27 (short | long | prev | next)
Remove MaxLen. Add MaxFastLen, BigLen*, Max*Decode. Change Thwack.slot to int. Remove Unthwack bit buffer. rsc Fri Mar 4 12:44:25 2005
1999/1001		HashSize = 1<<HashLog, HashMask = HashSize - 1, MaxLen = 8,
1999/1007		MaxFastLen = 9, BigLenCode = 0xf4, /* minimum code for large lenth encoding */ BigLenBase = 4, /* starting items to encode for big lens */ BigLenBits = 8,
1999/1001		MaxOff = 8, OffBase = 6, MinDecode = 9, /* minimum bits to decode a match or lit */
1999/1007		MaxOffDecode = 4 + MaxOff + OffBase - 1, MaxLenDecode = 16,
1999/1001		EWinBlocks = 32, /* blocks held in encoder window */ DWinBlocks = 32, /* blocks held in decoder window */
1999/1001/sys/src/9/port/thwack.h:44,50 – 1999/1007/sys/src/9/port/thwack.h:49,55
1999/1001		uchar *dst; /* output buffer */ uchar *dmax; ulong slot; /* next block to use */
1999/1007		int slot; /* next block to use */
1999/1001		ThwBlock blocks[EWinBlocks]; ushort hash[EWinBlocks][HashSize]; uchar data[EWinBlocks][ThwMaxBlock];
1999/1001/sys/src/9/port/thwack.h:59,69 – 1999/1007/sys/src/9/port/thwack.h:64,69
1999/1001		struct Unthwack { ulong nbits; /* input bit buffer */ ulong bits; uchar *src; /* input buffer */ uchar *smax;                  int slot; /* next block to use */ UnthwBlock blocks[DWinBlocks]; uchar data[DWinBlocks][ThwMaxBlock];