root/trunk/contrib/extractor/libmpq/explode.h @ 2

Revision 2, 4.0 kB (checked in by yumileroy, 17 years ago)

[svn] * Proper SVN structure

Original author: Neo2003
Date: 2008-10-02 16:23:55-05:00
Line 
1/*
2 *  explode.h -- header file for PKWARE data decompression library
3 *               used by mpq-tools.
4 *
5 *  Copyright (C) 2003 Maik Broemme <mbroemme@plusserver.de>
6 *
7 *  This source was adepted from the C++ version of pklib.h included
8 *  in stormlib. The C++ version belongs to the following authors,
9 *
10 *  Ladislav Zezula <ladik.zezula.net>
11 *
12 *  This program is free software; you can redistribute it and/or modify
13 *  it under the terms of the GNU General Public License as published by
14 *  the Free Software Foundation; either version 2 of the License, or
15 *  (at your option) any later version.
16 *
17 *  This program is distributed in the hope that it will be useful,
18 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
19 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20 *  GNU General Public License for more details.
21 *
22 *  You should have received a copy of the GNU General Public License
23 *  along with this program; if not, write to the Free Software
24 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25 */
26
27#ifndef _EXPLODE_H
28#define _EXPLODE_H
29
30#define LIBMPQ_PKZIP_EXP_BUFFER_SIZE    12596           /* Size of decompress buffer */
31#define LIBMPQ_PKZIP_CMP_BINARY         0               /* Binary compression */
32#define LIBMPQ_PKZIP_CMP_ASCII          1               /* Ascii compression */
33#define LIBMPQ_PKZIP_CMP_NO_ERROR       0
34#define LIBMPQ_PKZIP_CMP_INV_DICTSIZE   1
35#define LIBMPQ_PKZIP_CMP_INV_MODE       2
36#define LIBMPQ_PKZIP_CMP_BAD_DATA       3
37#define LIBMPQ_PKZIP_CMP_ABORT          4
38
39/* Compression structure (size: 12596 bytes on x86-32) */
40typedef struct {
41        unsigned long   offs0000;               /* 0000 */
42        unsigned long   cmp_type;               /* 0004 - Compression type (LIBMPQ_PZIP_CMP_BINARY or LIBMPQ_PKZIP_CMP_ASCII) */
43        unsigned long   out_pos;                /* 0008 - Position in output buffer */
44        unsigned long   dsize_bits;             /* 000C - Dict size (4, 5, 6 for 0x400, 0x800, 0x1000) */
45        unsigned long   dsize_mask;             /* 0010 - Dict size bitmask (0x0F, 0x1F, 0x3F for 0x400, 0x800, 0x1000) */
46        unsigned long   bit_buf;                /* 0014 - 16-bit buffer for processing input data */
47        unsigned long   extra_bits;             /* 0018 - Number of extra (above 8) bits in bit buffer */
48        unsigned int    in_pos;                 /* 001C - Position in in_buf */
49        unsigned long   in_bytes;               /* 0020 - Number of bytes in input buffer */
50        void            *param;                 /* 0024 - Custom parameter */
51        unsigned int    (*read_buf)(char *buf, unsigned  int *size, void *param);       /* 0028 */
52        void            (*write_buf)(char *buf, unsigned  int *size, void *param);      /* 002C */
53        unsigned char   out_buf[0x2000];        /* 0030 - Output circle buffer. Starting position is 0x1000 */
54        unsigned char   offs_2030[0x204];       /* 2030 - ??? */
55        unsigned char   in_buf[0x800];          /* 2234 - Buffer for data to be decompressed */
56        unsigned char   pos1[0x100];            /* 2A34 - Positions in buffers */
57        unsigned char   pos2[0x100];            /* 2B34 - Positions in buffers */
58        unsigned char   offs_2c34[0x100];       /* 2C34 - Buffer for */
59        unsigned char   offs_2d34[0x100];       /* 2D34 - Buffer for */
60        unsigned char   offs_2e34[0x80];        /* 2EB4 - Buffer for */
61        unsigned char   offs_2eb4[0x100];       /* 2EB4 - Buffer for */
62        unsigned char   bits_asc[0x100];        /* 2FB4 - Buffer for */
63        unsigned char   dist_bits[0x40];        /* 30B4 - Numbers of bytes to skip copied block length */
64        unsigned char   slen_bits[0x10];        /* 30F4 - Numbers of bits for skip copied block length */
65        unsigned char   clen_bits[0x10];        /* 3104 - Number of valid bits for copied block */
66        unsigned short  len_base[0x10];         /* 3114 - Buffer for */
67} pkzip_data_cmp;
68// __attribute__ ((packed)) pkzip_data_cmp;
69
70typedef struct {
71        char            *in_buf;        /* Pointer to input data buffer */
72        unsigned int    in_pos;         /* Current offset in input data buffer */
73        int             in_bytes;       /* Number of bytes in the input buffer */
74        char            *out_buf;       /* Pointer to output data buffer */
75        unsigned int    out_pos;        /* Position in the output buffer */
76        int             max_out;        /* Maximum number of bytes in the output buffer */
77} pkzip_data;
78
79extern unsigned int libmpq_pkzip_explode(
80        unsigned int    (*read_buf)(char *buf, unsigned int *size, void *param),
81        void            (*write_buf)(char *buf, unsigned int *size, void *param),
82        char            *work_buf,
83        void            *param
84);
85
86#endif                                  /* _EXPLODE_H */
Note: See TracBrowser for help on using the browser.