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https://github.com/libretro/scummvm.git
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96 lines
3.0 KiB
C++
96 lines
3.0 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "glk/alan2/detection.h"
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#include "glk/alan2/detection_tables.h"
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#include "common/debug.h"
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#include "common/file.h"
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#include "common/md5.h"
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#include "engines/game.h"
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namespace Glk {
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namespace Alan2 {
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void Alan2MetaEngine::getSupportedGames(PlainGameList &games) {
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for (const PlainGameDescriptor *pd = ALAN2_GAME_LIST; pd->gameId; ++pd) {
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games.push_back(*pd);
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}
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}
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GameDescriptor Alan2MetaEngine::findGame(const char *gameId) {
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for (const PlainGameDescriptor *pd = ALAN2_GAME_LIST; pd->gameId; ++pd) {
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if (!strcmp(gameId, pd->gameId))
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return *pd;
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}
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return GameDescriptor::empty();
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}
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bool Alan2MetaEngine::detectGames(const Common::FSList &fslist, DetectedGames &gameList) {
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// Loop through the files of the folder
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for (Common::FSList::const_iterator file = fslist.begin(); file != fslist.end(); ++file) {
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// Check for a recognised filename
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if (file->isDirectory())
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continue;
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Common::String filename = file->getName();
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bool hasExt = filename.hasSuffix(".acd");
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if (!hasExt)
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continue;
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// Open up the file and calculate the md5
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Common::File gameFile;
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if (!gameFile.open(*file) || gameFile.readUint32BE() != MKTAG(2, 8, 1, 0))
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continue;
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gameFile.seek(0);
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Common::String md5 = Common::computeStreamMD5AsString(gameFile, 5000);
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size_t filesize = gameFile.size();
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gameFile.close();
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// Check for known games
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const GlkDetectionEntry *p = ALAN2_GAMES;
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while (p->_gameId && (md5 != p->_md5 || filesize != p->_filesize))
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++p;
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if (!p->_gameId) {
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const PlainGameDescriptor &desc = ALAN2_GAME_LIST[0];
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gameList.push_back(GlkDetectedGame(desc.gameId, desc.description, filename, md5, filesize));
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} else {
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PlainGameDescriptor gameDesc = findGame(p->_gameId);
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gameList.push_back(GlkDetectedGame(p->_gameId, gameDesc.description, filename));
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}
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}
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return !gameList.empty();
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}
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void Alan2MetaEngine::detectClashes(Common::StringMap &map) {
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for (const PlainGameDescriptor *pd = ALAN2_GAME_LIST; pd->gameId; ++pd) {
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if (map.contains(pd->gameId))
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error("Duplicate game Id found - %s", pd->gameId);
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map[pd->gameId] = "";
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}
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}
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} // End of namespace Alan2
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} // End of namespace Glk
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