thirdparty/scummvm
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Saving some more bytes of binary size in the advanced detector

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svn-id: r35081
This commit is contained in:
Max Horn 2008-11-15 13:19:40 +00:00
parent 06216866ac
commit 2f7197ead1
1 changed files with 39 additions and 44 deletions
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73
common/advancedDetector.cpp
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@ -227,7 +227,7 @@ Common::Error AdvancedMetaEngine::createInstance(OSystem *syst, Engine **engine)
const ADGameDescription *agdDesc = 0;
Common::Language language = Common::UNK_LANG;
Common::Platform platform = Common::kPlatformUnknown;
Common::String extra("");
Common::String extra;
if (ConfMan.hasKey("language"))
language = Common::parseLanguage(ConfMan.get("language"));
@ -288,11 +288,15 @@ Common::Error AdvancedMetaEngine::createInstance(OSystem *syst, Engine **engine)
return kNoError;
}
typedef HashMap<String, bool, IgnoreCase_Hash, IgnoreCase_EqualTo> StringSet;
typedef HashMap<String, int32, IgnoreCase_Hash, IgnoreCase_EqualTo> IntMap;
struct SizeMD5 {
int size;
char md5[32+1];
};
typedef HashMap<String, SizeMD5, IgnoreCase_Hash, IgnoreCase_EqualTo> SizeMD5Map;
typedef HashMap<String, FSNode, IgnoreCase_Hash, IgnoreCase_EqualTo> FileMap;
static void reportUnknown(const StringMap &filesMD5, const IntMap &filesSize) {
static void reportUnknown(const SizeMD5Map &filesSizeMD5) {
// TODO: This message should be cleaned up / made more specific.
// For example, we should specify at least which engine triggered this.
//
@ -302,8 +306,8 @@ static void reportUnknown(const StringMap &filesMD5, const IntMap &filesSize) {
printf("data to the ScummVM team along with name of the game you tried to add\n");
printf("and its version/language/etc.:\n");
for (StringMap::const_iterator file = filesMD5.begin(); file != filesMD5.end(); ++file)
printf(" \"%s\", \"%s\", %d\n", file->_key.c_str(), file->_value.c_str(), filesSize[file->_key]);
for (SizeMD5Map::const_iterator file = filesSizeMD5.begin(); file != filesSizeMD5.end(); ++file)
printf(" \"%s\", \"%s\", %d\n", file->_key.c_str(), file->_value.md5, file->_value.size);
printf("\n");
}
@ -312,10 +316,7 @@ static ADGameDescList detectGameFilebased(const FileMap &allFiles, const Common:
static ADGameDescList detectGame(const FSList &fslist, const Common::ADParams &params, Language language, Platform platform, const Common::String extra) {
FileMap allFiles;
StringSet detectFiles;
StringMap filesMD5;
IntMap filesSize;
SizeMD5Map filesSizeMD5;
const ADGameFileDescription *fileDesc;
const ADGameDescription *g;
@ -323,7 +324,7 @@ static ADGameDescList detectGame(const FSList &fslist, const Common::ADParams &p
debug(3, "Starting detection");
// First we compose an efficient to query set of all files in fslist.
// First we compose a hashmap of all files in fslist.
// Includes nifty stuff like removing trailing dots and ignoring case.
for (FSList::const_iterator file = fslist.begin(); file != fslist.end(); ++file) {
if (file->isDirectory())
@ -338,38 +339,32 @@ static ADGameDescList detectGame(const FSList &fslist, const Common::ADParams &p
allFiles[tstr] = *file; // Record the presence of this file
}
// Compute the set of files for which we need MD5s for. I.e. files which are
// included in some ADGameDescription *and* present in fslist.
// Check which files are included in some ADGameDescription *and* present
// in fslist. Compute MD5s and file sizes for these files.
for (descPtr = params.descs; ((const ADGameDescription *)descPtr)->gameid != 0; descPtr += params.descItemSize) {
g = (const ADGameDescription *)descPtr;
for (fileDesc = g->filesDescriptions; fileDesc->fileName; fileDesc++) {
String tstr = fileDesc->fileName;
if (allFiles.contains(tstr))
detectFiles[tstr] = true;
}
}
// Get the information for all detection files, if they exist
for (StringSet::const_iterator file = detectFiles.begin(); file != detectFiles.end(); ++file) {
String fname = file->_key;
String fname = fileDesc->fileName;
if (allFiles.contains(fname) && !filesSizeMD5.contains(fname)) {
debug(3, "+ %s", fname.c_str());
char md5str[32+1];
if (!md5_file_string(allFiles[fname], md5str, params.md5Bytes))
continue;
filesMD5[fname] = md5str;
SizeMD5 tmp;
if (!md5_file_string(allFiles[fname], tmp.md5, params.md5Bytes))
tmp.md5[0] = 0;
debug(3, "> %s: %s", fname.c_str(), md5str);
debug(3, "> '%s': '%s'", fname.c_str(), tmp.md5);
File testFile;
if (testFile.open(allFiles[fname])) {
filesSize[fname] = (int32)testFile.size();
testFile.close();
}
}
if (testFile.open(allFiles[fname]))
tmp.size = (int32)testFile.size();
else
tmp.size = -1;
filesSizeMD5[fname] = tmp;
}
}
}
ADGameDescList matched;
int maxFilesMatched = 0;
@ -394,18 +389,18 @@ static ADGameDescList detectGame(const FSList &fslist, const Common::ADParams &p
for (fileDesc = g->filesDescriptions; fileDesc->fileName; fileDesc++) {
String tstr = fileDesc->fileName;
if (!filesMD5.contains(tstr)) {
if (!filesSizeMD5.contains(tstr)) {
fileMissing = true;
break;
}
if (fileDesc->md5 != NULL && fileDesc->md5 != filesMD5[tstr]) {
debug(3, "MD5 Mismatch. Skipping (%s) (%s)", fileDesc->md5, filesMD5[tstr].c_str());
if (fileDesc->md5 != NULL && 0 != strcmp(fileDesc->md5, filesSizeMD5[tstr].md5)) {
debug(3, "MD5 Mismatch. Skipping (%s) (%s)", fileDesc->md5, filesSizeMD5[tstr].md5);
fileMissing = true;
break;
}
if (fileDesc->fileSize != -1 && fileDesc->fileSize != filesSize[tstr]) {
if (fileDesc->fileSize != -1 && fileDesc->fileSize != filesSizeMD5[tstr].size) {
debug(3, "Size Mismatch. Skipping");
fileMissing = true;
break;
@ -448,8 +443,8 @@ static ADGameDescList detectGame(const FSList &fslist, const Common::ADParams &p
// We didn't find a match
if (matched.empty()) {
if (!filesMD5.empty())
reportUnknown(filesMD5, filesSize);
if (!filesSizeMD5.empty())
reportUnknown(filesSizeMD5);
// Filename based fallback
if (params.fileBasedFallback != 0)