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
|
/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001-2003 The ScummVM project
*
* 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.
*
* $Header$
*
*/
#include <ctype.h>
#include "common/scummsys.h"
#include "common/engine.h"
#include "scumm/saveload.h"
#include "palm.h"
#define MAX_BLOCK 64000 // store in memory, before dump to file
// SaveFile class
class PalmSaveFile : public SaveFile {
public:
PalmSaveFile(const char *filename, const char *mode);
~PalmSaveFile();
bool is_open() { return file != NULL; }
int fread(void *buf, int size, int cnt);
int fwrite(void *buf, int size, int cnt);
// must be removed
int feof() { return ::feof(file); }
private :
FILE *file;
UInt8 * _readWriteData;
UInt32 _readWritePos;
bool _needDump;
};
PalmSaveFile::PalmSaveFile(const char *filename, const char *mode) {
_readWriteData = NULL;
_readWritePos = 0;
_needDump = false;
file = ::fopen(filename, mode);
}
PalmSaveFile::~PalmSaveFile() {
if (file) {
if (_needDump && _readWriteData) {
::fwrite(_readWriteData, _readWritePos, 1, file);
free(_readWriteData);
}
::fclose(file);
}
}
int PalmSaveFile::fread(void *buf, int size, int cnt) {
return ::fread(buf, size, cnt, file);
}
int PalmSaveFile::fwrite(void *buf, int size, int cnt) {
UInt32 fullsize = size*cnt;
if (fullsize <= MAX_BLOCK)
{
if (!_readWriteData)
_readWriteData = (byte *)malloc(MAX_BLOCK);
if ((_readWritePos+fullsize)>MAX_BLOCK) {
::fwrite(_readWriteData, _readWritePos, 1, file);
_readWritePos = 0;
_needDump = false;
}
MemMove(_readWriteData + _readWritePos, buf, fullsize);
_readWritePos += fullsize;
_needDump = true;
return cnt;
}
return ::fwrite(buf, size, cnt, file);
}
// SaveFileManager class
class PalmSaveFileManager : public SaveFileManager {
public:
SaveFile *open_savefile(const char *filename, bool saveOrLoad);
void list_savefiles(const char *prefix, bool *marks, int num);
};
SaveFile *PalmSaveFileManager::open_savefile(const char *filename, bool saveOrLoad) {
PalmSaveFile *sf = new PalmSaveFile(filename, (saveOrLoad? "wb":"rb"));
if(!sf->is_open()) {
delete sf;
sf = NULL;
}
return sf;
}
void PalmSaveFileManager::list_savefiles(const char *prefix, bool *marks, int num) {
FileRef fileRef;
// try to open the dir
Err e = VFSFileOpen(gVars->volRefNum, SCUMMVM_SAVEPATH, vfsModeRead, &fileRef);
memset(marks, false, num*sizeof(bool));
if (e != errNone)
return;
// enumerate all files
Char *nameonly = strrchr(prefix,'/') + 1;
UInt32 dirEntryIterator = vfsIteratorStart;
Char filename[32];
FileInfoType info = {0, filename, 32};
UInt16 length = StrLen(nameonly);
int slot = 0;
while (dirEntryIterator != vfsIteratorStop) {
e = VFSDirEntryEnumerate (fileRef, &dirEntryIterator, &info);
if (e != expErrEnumerationEmpty) { // there is something
if (StrLen(info.nameP) == (length + 2)) { // consider max 99, filename length is ok
if (StrNCaselessCompare(nameonly, info.nameP, length) == 0) { // this seems to be a save file
if (isdigit(info.nameP[length]) && isdigit(info.nameP[length+1])) {
slot = StrAToI(filename + length);
if (slot >= 0 && slot < num)
*(marks+slot) = true;
}
}
}
}
}
VFSFileClose(fileRef);
}
// OSystem
SaveFileManager *OSystem_PALMOS::get_savefile_manager() {
return new PalmSaveFileManager();
}
|
