1 /* 2 * lzodefs.h -- architecture, OS and compiler specific defines 3 * 4 * Copyright (C) 1996-2005 Markus F.X.J. Oberhumer <markus (at) oberhumer.com> 5 * 6 * The full LZO package can be found at: 7 * http://www.oberhumer.com/opensource/lzo/ 8 * 9 * Changed for kernel use by: 10 * Nitin Gupta <nitingupta910 (at) gmail.com> 11 * Richard Purdie <rpurdie (at) openedhand.com> 12 */ 13 14 #define LZO_VERSION 0x2020 15 #define LZO_VERSION_STRING "2.02" 16 #define LZO_VERSION_DATE "Oct 17 2005" 17 18 #define M1_MAX_OFFSET 0x0400 19 #define M2_MAX_OFFSET 0x0800 20 #define M3_MAX_OFFSET 0x4000 21 #define M4_MAX_OFFSET 0xbfff 22 23 #define M1_MIN_LEN 2 24 #define M1_MAX_LEN 2 25 #define M2_MIN_LEN 3 26 #define M2_MAX_LEN 8 27 #define M3_MIN_LEN 3 28 #define M3_MAX_LEN 33 29 #define M4_MIN_LEN 3 30 #define M4_MAX_LEN 9 31 32 #define M1_MARKER 0 33 #define M2_MARKER 64 34 #define M3_MARKER 32 35 #define M4_MARKER 16 36 37 #define D_BITS 14 38 #define D_MASK ((1u << D_BITS) - 1) 39 #define D_HIGH ((D_MASK >> 1) + 1) 40 41 #define DX2(p, s1, s2) (((((size_t)((p)[2]) << (s2)) ^ (p)[1]) \ 42 << (s1)) ^ (p)[0]) 43 #define DX3(p, s1, s2, s3) ((DX2((p)+1, s2, s3) << (s1)) ^ (p)[0]) 44
