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/* ScummVM - Scumm Interpreter
* Copyright (C) 2004-2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "common/stdafx.h"
#include "common/util.h"
#include "common/hash-str.h"
#include "common/file.h"
#include "common/md5.h"
#include "common/advancedDetector.h"
namespace Common {
AdvancedDetector::AdvancedDetector() {
_fileMD5Bytes = 0;
}
String AdvancedDetector::getDescription(int num) const {
char tmp[256];
const ADGameDescription *g = _gameDescriptions[num];
snprintf(tmp, 256, "%s (%s %s/%s)", g->name, g->extra,
getPlatformDescription(g->platform), getLanguageDescription(g->language));
return String(tmp);
}
ADList AdvancedDetector::detectGame(const FSList *fslist, Language language, Platform platform) {
int filesCount;
typedef HashMap<String, bool, CaseSensitiveString_Hash, CaseSensitiveString_EqualTo> StringSet;
StringSet filesList;
typedef StringMap StringMap;
StringMap filesMD5;
String tstr, tstr2;
uint i;
int j;
char md5str[32+1];
uint8 md5sum[16];
int *matched;
uint matchedCount = 0;
bool fileMissing;
const ADGameFileDescription *fileDesc;
assert(_gameDescriptions.size());
matched = new int[_gameDescriptions.size()];
// First we compose list of files which we need MD5s for
for (i = 0; i < _gameDescriptions.size(); i++) {
for (j = 0; j < _gameDescriptions[i]->filesCount; j++) {
tstr = String(_gameDescriptions[i]->filesDescriptions[j].fileName);
tstr.toLowercase();
tstr2 = tstr + ".";
filesList[tstr] = true;
filesList[tstr2] = true;
}
}
if (fslist != NULL) {
for (FSList::const_iterator file = fslist->begin(); file != fslist->end(); ++file) {
if (file->isDirectory()) continue;
tstr = file->name();
tstr.toLowercase();
tstr2 = tstr + ".";
if (!filesList.contains(tstr) && !filesList.contains(tstr2)) continue;
if (!md5_file(*file, md5sum, _fileMD5Bytes)) continue;
for (j = 0; j < 16; j++) {
sprintf(md5str + j*2, "%02x", (int)md5sum[j]);
}
filesMD5[tstr] = String(md5str);
filesMD5[tstr2] = String(md5str);
}
} else {
File testFile;
for (StringSet::const_iterator file = filesList.begin(); file != filesList.end(); ++file) {
tstr = file->_key;
tstr.toLowercase();
debug(3, "+ %s", tstr.c_str());
if (!filesMD5.contains(tstr)) {
if (testFile.open(file->_key)) {
testFile.close();
if (md5_file(file->_key.c_str(), md5sum, _fileMD5Bytes)) {
for (j = 0; j < 16; j++) {
sprintf(md5str + j*2, "%02x", (int)md5sum[j]);
}
filesMD5[tstr] = String(md5str);
debug(3, "> %s: %s", tstr.c_str(), md5str);
}
}
}
}
}
for (i = 0; i < _gameDescriptions.size(); i++) {
filesCount = _gameDescriptions[i]->filesCount;
fileMissing = false;
// Try to open all files for this game
for (j = 0; j < filesCount; j++) {
fileDesc = &_gameDescriptions[i]->filesDescriptions[j];
tstr = fileDesc->fileName;
tstr.toLowercase();
tstr2 = tstr + ".";
if (!filesMD5.contains(tstr) && !filesMD5.contains(tstr2)) {
fileMissing = true;
break;
}
if (strcmp(fileDesc->md5, filesMD5[tstr].c_str()) && strcmp(fileDesc->md5, filesMD5[tstr2].c_str())) {
fileMissing = true;
break;
}
debug(3, "Matched file: %s", tstr.c_str());
}
if (!fileMissing) {
debug(2, "Found game: %s", getDescription(i).c_str());
matched[matchedCount++] = i;
}
}
if (!filesMD5.empty() && (matchedCount == 0)) {
printf("MD5s of your game version are unknown. Please, report following data to\n");
printf("ScummVM team along with your game name and version:\n");
for (StringMap::const_iterator file = filesMD5.begin(); file != filesMD5.end(); ++file)
printf("%s: %s\n", file->_key.c_str(), file->_value.c_str());
}
// We have some resource sets which are superpositions of other
// Now remove lesser set if bigger matches too
if (matchedCount > 1) {
// Search max number
int maxcount = 0;
for (i = 0; i < matchedCount; i++) {
maxcount = MAX(_gameDescriptions[matched[i]]->filesCount, maxcount);
}
// Now purge targets with number of files lesser than max
for (i = 0; i < matchedCount; i++) {
if ((_gameDescriptions[matched[i]]->language != language && language != UNK_LANG) ||
(_gameDescriptions[matched[i]]->platform != platform && platform != kPlatformUnknown)) {
debug(2, "Purged %s", getDescription(matched[i]).c_str());
matched[i] = -1;
continue;
}
if (_gameDescriptions[matched[i]]->filesCount < maxcount) {
debug(2, "Purged: %s", getDescription(matched[i]).c_str());
matched[i] = -1;
}
}
}
ADList returnMatches;
for (i = 0; i < matchedCount; i++)
if (matched[i] != -1)
returnMatches.push_back(matched[i]);
delete[] matched;
return returnMatches;
}
} // End of namespace Common
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