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Diffstat (limited to 'engines/glk/advsys/detection.cpp')
-rw-r--r-- | engines/glk/advsys/detection.cpp | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/engines/glk/advsys/detection.cpp b/engines/glk/advsys/detection.cpp new file mode 100644 index 0000000000..4cedecfbc0 --- /dev/null +++ b/engines/glk/advsys/detection.cpp @@ -0,0 +1,95 @@ +/* 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 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#include "glk/advsys/detection.h" +#include "glk/advsys/detection_tables.h" +#include "common/file.h" +#include "common/md5.h" +#include "engines/game.h" + +namespace Glk { +namespace AdvSys { + +void AdvSysMetaEngine::getSupportedGames(PlainGameList &games) { + for (const PlainGameDescriptor *pd = ADVSYS_GAME_LIST; pd->gameId; ++pd) + games.push_back(*pd); +} + +GameDescriptor AdvSysMetaEngine::findGame(const char *gameId) { + for (const PlainGameDescriptor *pd = ADVSYS_GAME_LIST; pd->gameId; ++pd) { + if (!strcmp(gameId, pd->gameId)) + return *pd; + } + + return GameDescriptor::empty(); +} + +bool AdvSysMetaEngine::detectGames(const Common::FSList &fslist, DetectedGames &gameList) { + const char *const EXTENSIONS[] = { ".dat", 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 = false; + for (const char *const *ext = &EXTENSIONS[0]; *ext && !hasExt; ++ext) + hasExt = filename.hasSuffixIgnoreCase(*ext); + if (!hasExt) + continue; + + Common::File gameFile; + if (!gameFile.open(*file)) + continue; + Common::String md5 = Common::computeStreamMD5AsString(gameFile, 5000); + int32 filesize = gameFile.size(); + + // Scan through the AdvSys game list for a match + const AdvSysGame *p = ADVSYS_GAMES; + while (p->_md5 && p->_filesize != filesize && md5 != p->_md5) + ++p; + + if (p->_filesize) { + // Found a match + PlainGameDescriptor gameDesc = findGame(p->_gameId); + DetectedGame gd(p->_gameId, gameDesc.description, Common::EN_ANY, Common::kPlatformUnknown); + gd.addExtraEntry("filename", file->getName()); + + gameList.push_back(gd); + } + } + + return !gameList.empty(); +} + +void AdvSysMetaEngine::detectClashes(Common::StringMap &map) { + for (const PlainGameDescriptor *pd = ADVSYS_GAME_LIST; pd->gameId; ++pd) { + if (map.contains(pd->gameId)) + error("Duplicate game Id found - %s", pd->gameId); + map[pd->gameId] = ""; + } +} + +} // End of namespace AdvSys +} // End of namespace Glk |