diff options
| -rw-r--r-- | engines/director/detection.cpp | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/engines/director/detection.cpp b/engines/director/detection.cpp index 3e3d6ca117..63d6b4e685 100644 --- a/engines/director/detection.cpp +++ b/engines/director/detection.cpp @@ -91,6 +91,7 @@ public: return "Macromedia Director (C) Macromedia"; } + const ADGameDescription *fallbackDetect(const FileMap &allFiles, const Common::FSList &fslist) const; virtual bool createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const; }; @@ -103,6 +104,131 @@ bool DirectorMetaEngine::createInstance(OSystem *syst, Engine **engine, const AD return (gd != 0); } +static Director::DirectorGameDescription s_fallbackDesc = { + { + "director", + "", + AD_ENTRY1(0, 0), + Common::UNK_LANG, + Common::kPlatformWindows, + ADGF_NO_FLAGS, + GUIO0() + }, + Director::GID_GENERIC, + 0 +}; + +static char s_fallbackFileNameBuffer[51]; + +const ADGameDescription *DirectorMetaEngine::fallbackDetect(const FileMap &allFiles, const Common::FSList &fslist) const { + // TODO: Handle Mac fallback + + // reset fallback description + Director::DirectorGameDescription *desc = &s_fallbackDesc; + desc->desc.gameid = "director"; + desc->desc.extra = ""; + desc->desc.language = Common::UNK_LANG; + desc->desc.flags = ADGF_NO_FLAGS; + desc->desc.platform = Common::kPlatformWindows; + desc->desc.guioptions = GUIO0(); + desc->desc.filesDescriptions[0].fileName = 0; + desc->version = 0; + desc->gameID = Director::GID_GENERIC; + + for (Common::FSList::const_iterator file = fslist.begin(); file != fslist.end(); ++file) { + if (file->isDirectory()) + continue; + + Common::String fileName = file->getName(); + fileName.toLowercase(); + if (!fileName.hasSuffix(".exe")) + continue; + + SearchMan.clear(); + SearchMan.addDirectory(file->getParent().getName(), file->getParent()); + + Common::SeekableReadStream *stream = SearchMan.createReadStreamForMember(file->getName()); + + if (!stream) + continue; + + stream->seek(-4, SEEK_END); + + uint32 offset = stream->readUint32LE(); + + if (stream->eos() || offset == 0 || offset >= (uint32)(stream->size() - 4)) { + delete stream; + continue; + } + + stream->seek(offset); + + uint32 tag = stream->readUint32LE(); + + switch (tag) { + case MKTAG('3', '9', 'J', 'P'): + desc->version = 4; + break; + case MKTAG('P', 'J', '9', '5'): + desc->version = 5; + break; + case MKTAG('P', 'J', '0', '0'): + desc->version = 7; + break; + default: + // 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; + continue; + } + + stream->skip(3); + + uint32 mmmSize = stream->readUint32LE(); + + if (stream->eos() || mmmSize == 0) { + delete stream; + continue; + } + + byte fileNameSize = stream->readByte(); + + if (stream->eos()) { + delete stream; + continue; + } + + stream->skip(fileNameSize); + byte directoryNameSize = stream->readByte(); + + if (stream->eos()) { + delete stream; + continue; + } + + stream->skip(directoryNameSize); + + if ((uint32)stream->pos() != offset) { + delete stream; + continue; + } + + // Assume v3 at this point (for now at least) + desc->version = 3; + } + + strncpy(s_fallbackFileNameBuffer, fileName.c_str(), 50); + s_fallbackFileNameBuffer[50] = '\0'; + desc->desc.filesDescriptions[0].fileName = s_fallbackFileNameBuffer; + + return (ADGameDescription *)desc; + } + + return 0; +} + #if PLUGIN_ENABLED_DYNAMIC(DIRECTOR) REGISTER_PLUGIN_DYNAMIC(DIRECTOR, PLUGIN_TYPE_ENGINE, DirectorMetaEngine); #else |