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
163
164
|
/* 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/>.
*
*/
#include "glk/zcode/detection.h"
#include "glk/zcode/detection_tables.h"
#include "glk/zcode/quetzal.h"
#include "glk/blorb.h"
#include "common/debug.h"
#include "common/file.h"
#include "common/md5.h"
#include "common/translation.h"
namespace Glk {
namespace ZCode {
void ZCodeMetaEngine::getSupportedGames(PlainGameList &games) {
for (const PlainGameDescriptor *pd = INFOCOM_GAME_LIST; pd->gameId; ++pd)
games.push_back(*pd);
for (const PlainGameDescriptor *pd = ZCODE_GAME_LIST; pd->gameId; ++pd)
games.push_back(*pd);
}
GameDescriptor ZCodeMetaEngine::findGame(const char *gameId) {
for (const PlainGameDescriptor *pd = INFOCOM_GAME_LIST; pd->gameId; ++pd) {
if (!strcmp(gameId, pd->gameId)) {
GameDescriptor gd(*pd);
gd._options |= OPTION_INFOCOM;
if (!strcmp(gameId, "questforexcalibur") ||
!strcmp(gameId, "journey") ||
!strcmp(gameId, "shogun") ||
!strcmp(gameId, "zork0"))
gd._supportLevel = kUnstableGame;
return gd;
}
}
for (const PlainGameDescriptor *pd = ZCODE_GAME_LIST; pd->gameId; ++pd) {
if (!strcmp(gameId, pd->gameId)) {
GameDescriptor gd = *pd;
/*
* Tested against ScummVM 2.8.0git, following entries are confirmed not to be playable
*/
if (!strcmp(gameId, "bureaucrocy_zcode") ||
!strcmp(gameId, "scopa") ||
!strcmp(gameId, "sunburst"))
gd._supportLevel = kUnstableGame;
return gd;
}
}
return GameDescriptor::empty();
}
bool ZCodeMetaEngine::detectGames(const Common::FSList &fslist, DetectedGames &gameList) {
const char *const EXTENSIONS[] = { ".z1", ".z2", ".z3", ".z4", ".z5", ".z6", ".z7", ".z8",
".dat", ".data", ".zip", nullptr };
// Loop through the files of the folder
for (Common::FSList::const_iterator file = fslist.begin(); file != fslist.end(); ++file) {
// Check for a recognised filename
if (file->isDirectory())
continue;
Common::String filename = file->getName();
bool hasExt = Blorb::hasBlorbExt(filename), isBlorb = false;
for (const char *const *ext = &EXTENSIONS[0]; *ext && !hasExt; ++ext)
hasExt = filename.hasSuffixIgnoreCase(*ext);
if (!hasExt)
continue;
// Open up the file and calculate the md5, and get the serial
Common::File gameFile;
if (!gameFile.open(*file))
continue;
Common::String md5 = Common::computeStreamMD5AsString(gameFile, 5000);
size_t filesize = gameFile.size();
char serial[9] = "";
bool emptyBlorb = false;
gameFile.seek(0);
isBlorb = Blorb::isBlorb(gameFile, ID_ZCOD);
if (!isBlorb) {
if (Blorb::hasBlorbExt(filename)) {
gameFile.close();
continue;
}
gameFile.seek(18);
Common::strcpy_s(&serial[0], sizeof(serial), "\"");
gameFile.read(&serial[1], 6);
Common::strcpy_s(&serial[7], sizeof(serial)-7, "\"");
} else {
Blorb b(*file, INTERPRETER_ZCODE);
Common::SeekableReadStream *f = b.createReadStreamForMember("game");
emptyBlorb = f == nullptr;
if (!emptyBlorb) {
f->seek(18);
Common::strcpy_s(&serial[0], sizeof(serial), "\"");
f->read(&serial[1], 6);
Common::strcpy_s(&serial[7], sizeof(serial) - 7, "\"");
delete f;
}
}
gameFile.close();
// Check for known games. Note that there has been some variation in exact filesizes
// for Infocom games due to padding at the end of files. So we match on md5s for the
// first 5Kb, and only worry about filesize for more recent Blorb based Zcode games
const FrotzGameDescription *p = FROTZ_GAMES;
while (p->_gameId && p->_md5 && (md5 != p->_md5 ||
(filesize != p->_filesize && isBlorb)))
++p;
if (!p->_gameId) {
// Generic .dat/.data/.zip files don't get reported as matches unless they have a known md5
if (filename.hasSuffixIgnoreCase(".dat") || filename.hasSuffixIgnoreCase(".data") || filename.hasSuffixIgnoreCase(".zip") || emptyBlorb)
continue;
const PlainGameDescriptor &desc = ZCODE_GAME_LIST[0];
gameList.push_back(GlkDetectedGame(desc.gameId, desc.description, filename, md5, filesize));
} else {
GameDescriptor gameDesc = findGame(p->_gameId);
DetectedGame gd = DetectedGame("glk", p->_gameId, gameDesc._description, p->_language, Common::kPlatformUnknown, p->_extra);
gd.setGUIOptions(p->_guiOptions);
gd.addExtraEntry("filename", filename);
gameList.push_back(gd);
}
}
return !gameList.empty();
}
void ZCodeMetaEngine::detectClashes(Common::StringMap &map) {
for (int idx = 0; idx < 2; ++idx) {
for (const PlainGameDescriptor *pd = (idx == 0) ? INFOCOM_GAME_LIST : ZCODE_GAME_LIST; pd->gameId; ++pd) {
if (map.contains(pd->gameId))
error("Duplicate game Id found - %s", pd->gameId);
map[pd->gameId] = "";
}
}
}
} // End of namespace ZCode
} // End of namespace Glk
|
