mirror of
https://github.com/libretro/scummvm.git
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104 lines
3.2 KiB
C++
104 lines
3.2 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/advsys/detection.h"
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#include "glk/advsys/detection_tables.h"
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#include "glk/advsys/game.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 AdvSys {
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void AdvSysMetaEngine::getSupportedGames(PlainGameList &games) {
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for (const PlainGameDescriptor *pd = ADVSYS_GAME_LIST; pd->gameId; ++pd)
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games.push_back(*pd);
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}
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GameDescriptor AdvSysMetaEngine::findGame(const char *gameId) {
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for (const PlainGameDescriptor *pd = ADVSYS_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 AdvSysMetaEngine::detectGames(const Common::FSList &fslist, DetectedGames &gameList) {
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const char *const EXTENSIONS[] = { ".dat", nullptr };
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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 = false;
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for (const char *const *ext = &EXTENSIONS[0]; *ext && !hasExt; ++ext)
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hasExt = filename.hasSuffixIgnoreCase(*ext);
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if (!hasExt)
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continue;
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Common::File gameFile;
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if (!gameFile.open(*file))
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continue;
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Header hdr(&gameFile);
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if (!hdr._valid)
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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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uint32 filesize = gameFile.size();
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// Scan through the AdvSys game list for a match
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const GlkDetectionEntry *p = ADVSYS_GAMES;
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while (p->_md5 && p->_filesize != filesize && md5 != p->_md5)
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++p;
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if (!p->_gameId) {
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const PlainGameDescriptor &desc = ADVSYS_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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// Found a match
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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 AdvSysMetaEngine::detectClashes(Common::StringMap &map) {
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for (const PlainGameDescriptor *pd = ADVSYS_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 AdvSys
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} // End of namespace Glk
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