aboutsummaryrefslogtreecommitdiff
path: root/backends/platform/ds/arm9/source/zipreader.h
blob: 4b01735111fc28af67d54aa8cace925a7844995f (plain)
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
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
/* ScummVMDS - Scumm Interpreter DS Port
 * Copyright (C) 2002-2004 The ScummVM project and Neil Millstone
 *
 * This program is free software; you can redistribute it and/or
 * modify it 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */
 
#ifndef _ZIPREADER_H_
#define _ZIPREADER_H_
#include "stdafx.h"
#include "portdefs.h"
#define ZF_SEARCH_START 0x08000000
#define ZF_SEARCH_END 0x09000000
#define ZF_SEARCH_STRIDE 16

class ZipFile {

	struct FileHeader {
		char magic[4];		// Header (0x04034B50)			0
		u16 minVersion;		// Version needed to extract	4
		u16 flags;			// Flags						6
		u16 comp;			// Compression method			8
		u16 modTime;		// Last modified file time		A
		u16 modDate;		// Last modified file data		C
		u32 crc32;			// CRC32						F
		u32 compSize;		// Compressed size
		u32 fileSize;		// Uncompressed file size
		u16 nameLength;		// Length of the filename
		u16 extraLength;	// Length of any extra data
	} __attribute__ ((packed));

	char* _zipFile;
	char _directory[128];
	
	bool _allFilesVisible;
	
	FileHeader* _currentFile;

public:
	ZipFile();
	~ZipFile();

	bool isReady();
	
	// These operations set the current file
	bool restartFile();
	bool skipFile();
	bool findFile(char* search);	

	// These return the file's data and information
	char* getFile();
	int getFileSize();
	void getFileName(char* name);
	bool isDirectory();
	
	// These set the current directory
	void changeDirectory(char* name);
	void changeToRoot();
	void setAllFilesVisible(bool state) { _allFilesVisible = state; }
	
	bool currentFileInFolder();
	
	u16 misaligned16(u16* v);
	u32 misaligned32(u32* v);

};


#endif
/* ScummVMDS - Scumm Interpreter DS Port
 * Copyright (C) 2002-2004 The ScummVM project and Neil Millstone
 *
 * This program is free software; you can redistribute it and/or
 * modify it 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */
 
#ifndef _ZIPREADER_H_
#define _ZIPREADER_H_
#include "stdafx.h"
#include "portdefs.h"
#define ZF_SEARCH_START 0x08000000
#define ZF_SEARCH_END 0x09000000
#define ZF_SEARCH_STRIDE 16

class ZipFile {

	struct FileHeader {
		char magic[4];		// Header (0x04034B50)			0
		u16 minVersion;		// Version needed to extract	4
		u16 flags;			// Flags						6
		u16 comp;			// Compression method			8
		u16 modTime;		// Last modified file time		A
		u16 modDate;		// Last modified file data		C
		u32 crc32;			// CRC32						F
		u32 compSize;		// Compressed size
		u32 fileSize;		// Uncompressed file size
		u16 nameLength;		// Length of the filename
		u16 extraLength;	// Length of any extra data
	} __attribute__ ((packed));

	char* _zipFile;
	char _directory[128];
	
	bool _allFilesVisible;
	
	FileHeader* _currentFile;

public:
	ZipFile();
	~ZipFile();

	bool isReady();
	
	// These operations set the current file
	bool restartFile();
	bool skipFile();
	bool findFile(char* search);	

	// These return the file's data and information
	char* getFile();
	int getFileSize();
	void getFileName(char* name);
	bool isDirectory();
	
	// These set the current directory
	void changeDirectory(char* name);
	void changeToRoot();
	void setAllFilesVisible(bool state) { _allFilesVisible = state; }
	
	bool currentFileInFolder();
	
	u16 misaligned16(u16* v);
	u32 misaligned32(u32* v);

};


#endif