diff options
Diffstat (limited to 'engines/director/detection.cpp')
-rw-r--r-- | engines/director/detection.cpp | 52 |
1 files changed, 18 insertions, 34 deletions
diff --git a/engines/director/detection.cpp b/engines/director/detection.cpp index dd10b6c044..a3f9b7c2f5 100644 --- a/engines/director/detection.cpp +++ b/engines/director/detection.cpp @@ -165,26 +165,20 @@ const ADGameDescription *DirectorMetaEngine::fallbackDetect(const FileMap &allFi if (!fileName.hasSuffix(".exe")) continue; - SearchMan.clear(); - SearchMan.addDirectory(file->getParent().getName(), file->getParent()); - - Common::SeekableReadStream *stream = SearchMan.createReadStreamForMember(file->getName()); - - if (!stream) + Common::File f; + if (!f.open(*file)) continue; - stream->seek(-4, SEEK_END); + f.seek(-4, SEEK_END); - uint32 offset = stream->readUint32LE(); + uint32 offset = f.readUint32LE(); - if (stream->eos() || offset == 0 || offset >= (uint32)(stream->size() - 4)) { - delete stream; + if (f.eos() || offset == 0 || offset >= (uint32)(f.size() - 4)) continue; - } - stream->seek(offset); + f.seek(offset); - uint32 tag = stream->readUint32LE(); + uint32 tag = f.readUint32LE(); switch (tag) { case MKTAG('3', '9', 'J', 'P'): @@ -200,41 +194,31 @@ const ADGameDescription *DirectorMetaEngine::fallbackDetect(const FileMap &allFi // Prior to version 4, there was no tag here. So we'll use a bit of a // heuristic to detect. The first field is the entry count, of which // there should only be one. - if ((tag & 0xFFFF) != 1) { - delete stream; + if ((tag & 0xFFFF) != 1) continue; - } - stream->skip(3); + f.skip(3); - uint32 mmmSize = stream->readUint32LE(); + uint32 mmmSize = f.readUint32LE(); - if (stream->eos() || mmmSize == 0) { - delete stream; + if (f.eos() || mmmSize == 0) continue; - } - byte fileNameSize = stream->readByte(); + byte fileNameSize = f.readByte(); - if (stream->eos()) { - delete stream; + if (f.eos()) continue; - } - stream->skip(fileNameSize); - byte directoryNameSize = stream->readByte(); + f.skip(fileNameSize); + byte directoryNameSize = f.readByte(); - if (stream->eos()) { - delete stream; + if (f.eos()) continue; - } - stream->skip(directoryNameSize); + f.skip(directoryNameSize); - if (stream->pos() != stream->size() - 4) { - delete stream; + if (f.pos() != f.size() - 4) continue; - } // Assume v3 at this point (for now at least) desc->version = 3; |