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
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef SCUMM_FILE_H
#define SCUMM_FILE_H
#include "common/file.h"
#include "common/stream.h"
#include "scumm/detection.h"
namespace Scumm {
class ScummEngine;
class BaseScummFile : public Common::SeekableReadStream {
protected:
byte _encbyte;
Common::ScopedPtr<Common::SeekableReadStream> _baseStream;
Common::String _debugName;
public:
BaseScummFile() : _encbyte(0) {}
void setEnc(byte value) { _encbyte = value; }
virtual bool open(const Common::Path &filename) = 0;
virtual bool openSubFile(const Common::Path &filename) = 0;
virtual void close();
int64 pos() const override = 0;
int64 size() const override = 0;
bool seek(int64 offs, int whence = SEEK_SET) override = 0;
Common::String getDebugName() const { return _debugName; }
bool isOpen() const { return !!_baseStream; }
// Unused
#if 0
virtual bool eos() const = 0;
virtual uint32 read(void *dataPtr, uint32 dataSize) = 0;
#endif
};
class ScummFile : public BaseScummFile {
protected:
int32 _subFileStart;
int32 _subFileLen;
bool _myEos; // Have we read past the end of the subfile?
bool _isMac;
void setSubfileRange(int32 start, int32 len);
void resetSubfile();
public:
explicit ScummFile(const ScummEngine *vm);
bool open(const Common::Path &filename) override;
bool openSubFile(const Common::Path &filename) override;
void clearErr() override { _myEos = false; BaseScummFile::clearErr(); }
bool eos() const override;
int64 pos() const override;
int64 size() const override;
bool seek(int64 offs, int whence = SEEK_SET) override;
uint32 read(void *dataPtr, uint32 dataSize) override;
};
class ScummDiskImage : public BaseScummFile {
private:
Common::SeekableReadStream *_stream;
byte _roomDisks[59] = {}, _roomTracks[59] = {}, _roomSectors[59] = {};
byte *_buf = nullptr;
const GameSettings _game;
const Common::String _disk1, _disk2;
int _openedDisk = 0;
int _numGlobalObjects = 0;
int _numRooms = 0;
int _numCostumes = 0;
int _numScripts = 0;
int _numSounds = 0;
const int *_resourcesPerFile;
bool openDisk(char num);
bool generateIndex();
bool generateResource(int res);
uint16 extractIndex(Common::WriteStream *out);
uint16 extractResource(Common::WriteStream *out, int res);
byte fileReadByte();
uint16 fileReadUint16LE();
public:
ScummDiskImage(const char *disk1, const char *disk2, GameSettings game);
bool open(const Common::Path &filename) override;
bool openSubFile(const Common::Path &filename) override;
void close() override;
bool eos() const override { return _stream->eos(); }
int64 pos() const override { return _stream->pos(); }
int64 size() const override { return _stream->size(); }
bool seek(int64 offs, int whence = SEEK_SET) override { return _stream->seek(offs, whence); }
uint32 read(void *dataPtr, uint32 dataSize) override;
};
struct SteamIndexFile {
byte id;
Common::Platform platform;
const char *pattern;
const char *indexFileName;
const char *executableName;
int32 start;
int32 len;
};
class ScummSteamFile : public ScummFile {
private:
const SteamIndexFile &_indexFile;
bool openWithSubRange(const Common::Path &filename, int32 subFileStart, int32 subFileLen);
public:
ScummSteamFile(const ScummEngine *vm, const SteamIndexFile &indexFile) : ScummFile(vm), _indexFile(indexFile) {}
bool open(const Common::Path &filename) override;
};
} // End of namespace Scumm
#endif
|
