Contents of /trunk/mkinitrd-magellan/busybox/archival/liblzo.h
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Sun May 30 11:32:42 2010 UTC (14 years, 4 months ago) by niro
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Sun May 30 11:32:42 2010 UTC (14 years, 4 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 | /* |
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 |