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[/] [or1k/] [tags/] [LINUX_2_4_26_OR32/] [linux/] [linux-2.4/] [fs/] [jffs2/] [compr_rubin.h] - Rev 1275
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/* Rubin encoder/decoder header */ /* work started at : aug 3, 1994 */ /* last modification : aug 15, 1994 */ /* $Id: compr_rubin.h,v 1.1.1.1 2004-04-15 01:11:03 phoenix Exp $ */ #include "pushpull.h" #define RUBIN_REG_SIZE 16 #define UPPER_BIT_RUBIN (((long) 1)<<(RUBIN_REG_SIZE-1)) #define LOWER_BITS_RUBIN ((((long) 1)<<(RUBIN_REG_SIZE-1))-1) struct rubin_state { unsigned long p; unsigned long q; unsigned long rec_q; long bit_number; struct pushpull pp; int bit_divider; int bits[8]; }; void init_rubin (struct rubin_state *rs, int div, int *bits); int encode (struct rubin_state *, long, long, int); void end_rubin (struct rubin_state *); void init_decode (struct rubin_state *, int div, int *bits); int decode (struct rubin_state *, long, long);
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