1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
/******************************************************************************
** libDXFrw - Library to read/write DXF files (ascii & binary) **
** **
** Copyright (C) 2011-2015 José F. Soriano, rallazz@gmail.com **
** **
** This library is free software, licensed under the terms of the GNU **
** General Public License as published by the Free Software Foundation, **
** either version 2 of the License, or (at your option) any later version. **
** You should have received a copy of the GNU General Public License **
** along with this program. If not, see <http://www.gnu.org/licenses/>. **
******************************************************************************/
#ifndef DWGUTIL_H
#define DWGUTIL_H
#include "../drw_base.h"
namespace DRW {
std::string toHexStr(int n);
}
class dwgRSCodec {
public:
dwgRSCodec(){}
~dwgRSCodec(){}
static void decode239I(duint8 *in, duint8 *out, duint32 blk);
static void decode251I(duint8 *in, duint8 *out, duint32 blk);
};
class dwgCompressor {
public:
dwgCompressor(){}
~dwgCompressor(){}
void decompress18(duint8 *cbuf, duint8 *dbuf, duint32 csize, duint32 dsize);
static void decrypt18Hdr(duint8 *buf, duint32 size, duint32 offset);
// static void decrypt18Data(duint8 *buf, duint32 size, duint32 offset);
static void decompress21(duint8 *cbuf, duint8 *dbuf, duint32 csize, duint32 dsize);
private:
duint32 litLength18();
static duint32 litLength21(duint8 *cbuf, duint8 oc, duint32 *si);
static void copyCompBytes21(duint8 *cbuf, duint8 *dbuf, duint32 l, duint32 si, duint32 di);
static void readInstructions21(duint8 *cbuf, duint32 *si, duint8 *oc, duint32 *so, duint32 *l);
duint32 longCompressionOffset();
duint32 long20CompressionOffset();
duint32 twoByteOffset(duint32 *ll);
duint8 *bufC;
duint8 *bufD;
duint32 sizeC;
duint32 sizeD;
duint32 pos;
duint32 rpos;
};
class secEnum {
public:
enum DWGSection {
UNKNOWNS, /*!< UNKNOWN section. */
FILEHEADER, /*!< File Header (in R3-R15*/
HEADER, /*!< AcDb:Header */
CLASSES, /*!< AcDb:Classes */
SUMARYINFO, /*!< AcDb:SummaryInfo */
PREVIEW, /*!< AcDb:Preview */
VBAPROY, /*!< AcDb:VBAProject */
APPINFO, /*!< AcDb:AppInfo */
FILEDEP, /*!< AcDb:FileDepList */
REVHISTORY, /*!< AcDb:RevHistory */
SECURITY, /*!< AcDb:Security */
OBJECTS, /*!< AcDb:AcDbObjects */
OBJFREESPACE, /*!< AcDb:ObjFreeSpace */
TEMPLATE, /*!< AcDb:Template */
HANDLES, /*!< AcDb:Handles */
PROTOTYPE, /*!< AcDb:AcDsPrototype_1b */
AUXHEADER, /*!< AcDb:AuxHeader, in (R13-R15) second file header */
SIGNATURE, /*!< AcDb:Signature */
APPINFOHISTORY, /*!< AcDb:AppInfoHistory (in ac1021 may be a renamed section?*/
EXTEDATA, /*!< Extended Entity Data */
PROXYGRAPHICS /*!< PROXY ENTITY GRAPHICS */
};
secEnum(){}
~secEnum(){}
static DWGSection getEnum(std::string nameSec);
};
#endif // DWGUTIL_H
|
