Annotation of /trunk/mkinitrd-magellan/busybox/archival/liblzo.h
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Revision 984 -
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Sun May 30 11:32:42 2010 UTC (13 years, 11 months ago) by niro
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Sun May 30 11:32:42 2010 UTC (13 years, 11 months ago) by niro
File MIME type: text/plain
File size: 3299 byte(s)
-updated to busybox-1.16.1 and enabled blkid/uuid support in default config
1 | niro | 984 | /* |
2 | This file is part of the LZO real-time data compression library. | ||
3 | |||
4 | Copyright (C) 1996..2008 Markus Franz Xaver Johannes Oberhumer | ||
5 | All Rights Reserved. | ||
6 | |||
7 | Markus F.X.J. Oberhumer <markus@oberhumer.com> | ||
8 | http://www.oberhumer.com/opensource/lzo/ | ||
9 | |||
10 | The LZO library is free software; you can redistribute it and/or | ||
11 | modify it under the terms of the GNU General Public License as | ||
12 | published by the Free Software Foundation; either version 2 of | ||
13 | the License, or (at your option) any later version. | ||
14 | |||
15 | The LZO library is distributed in the hope that it will be useful, | ||
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
18 | GNU General Public License for more details. | ||
19 | |||
20 | You should have received a copy of the GNU General Public License | ||
21 | along with the LZO library; see the file COPYING. | ||
22 | If not, write to the Free Software Foundation, Inc., | ||
23 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | ||
24 | */ | ||
25 | |||
26 | #include "liblzo_interface.h" | ||
27 | |||
28 | /* lzo-2.03/src/config1x.h */ | ||
29 | #define M2_MIN_LEN 3 | ||
30 | #define M2_MAX_LEN 8 | ||
31 | #define M3_MAX_LEN 33 | ||
32 | #define M4_MAX_LEN 9 | ||
33 | #define M1_MAX_OFFSET 0x0400 | ||
34 | #define M2_MAX_OFFSET 0x0800 | ||
35 | #define M3_MAX_OFFSET 0x4000 | ||
36 | #define M4_MAX_OFFSET 0xbfff | ||
37 | #define M1_MARKER 0 | ||
38 | #define M3_MARKER 32 | ||
39 | #define M4_MARKER 16 | ||
40 | |||
41 | #define MX_MAX_OFFSET (M1_MAX_OFFSET + M2_MAX_OFFSET) | ||
42 | #define MIN_LOOKAHEAD (M2_MAX_LEN + 1) | ||
43 | |||
44 | #define LZO_EOF_CODE | ||
45 | |||
46 | /* lzo-2.03/src/lzo_dict.h */ | ||
47 | #define GINDEX(m_pos,m_off,dict,dindex,in) m_pos = dict[dindex] | ||
48 | #define DX2(p,s1,s2) \ | ||
49 | (((((unsigned)((p)[2]) << (s2)) ^ (p)[1]) << (s1)) ^ (p)[0]) | ||
50 | //#define DA3(p,s1,s2,s3) ((DA2((p)+1,s2,s3) << (s1)) + (p)[0]) | ||
51 | //#define DS3(p,s1,s2,s3) ((DS2((p)+1,s2,s3) << (s1)) - (p)[0]) | ||
52 | #define DX3(p,s1,s2,s3) ((DX2((p)+1,s2,s3) << (s1)) ^ (p)[0]) | ||
53 | |||
54 | #define D_SIZE (1U << D_BITS) | ||
55 | #define D_MASK ((1U << D_BITS) - 1) | ||
56 | #define D_HIGH ((D_MASK >> 1) + 1) | ||
57 | |||
58 | #define LZO_CHECK_MPOS_NON_DET(m_pos,m_off,in,ip,max_offset) \ | ||
59 | ( \ | ||
60 | m_pos = ip - (unsigned)(ip - m_pos), \ | ||
61 | ((uintptr_t)m_pos < (uintptr_t)in \ | ||
62 | || (m_off = (unsigned)(ip - m_pos)) <= 0 \ | ||
63 | || m_off > max_offset) \ | ||
64 | ) | ||
65 | |||
66 | #define DENTRY(p,in) (p) | ||
67 | #define UPDATE_I(dict,drun,index,p,in) dict[index] = DENTRY(p,in) | ||
68 | |||
69 | #define DMS(v,s) ((unsigned) (((v) & (D_MASK >> (s))) << (s))) | ||
70 | #define DM(v) ((unsigned) ((v) & D_MASK)) | ||
71 | #define DMUL(a,b) ((unsigned) ((a) * (b))) | ||
72 | |||
73 | /* lzo-2.03/src/lzo_ptr.h */ | ||
74 | #define pd(a,b) ((unsigned)((a)-(b))) | ||
75 | |||
76 | # define TEST_IP (ip < ip_end) | ||
77 | # define NEED_IP(x) \ | ||
78 | if ((unsigned)(ip_end - ip) < (unsigned)(x)) goto input_overrun | ||
79 | |||
80 | # undef TEST_OP /* don't need both of the tests here */ | ||
81 | # define TEST_OP 1 | ||
82 | # define NEED_OP(x) \ | ||
83 | if ((unsigned)(op_end - op) < (unsigned)(x)) goto output_overrun | ||
84 | |||
85 | #define HAVE_ANY_OP 1 | ||
86 | |||
87 | //#if defined(LZO_TEST_OVERRUN_LOOKBEHIND) | ||
88 | # define TEST_LB(m_pos) if (m_pos < out || m_pos >= op) goto lookbehind_overrun | ||
89 | //# define TEST_LBO(m_pos,o) if (m_pos < out || m_pos >= op - (o)) goto lookbehind_overrun | ||
90 | //#else | ||
91 | //# define TEST_LB(m_pos) ((void) 0) | ||
92 | //# define TEST_LBO(m_pos,o) ((void) 0) | ||
93 | //#endif |