C++ File::size方法代码示例

void AGOSEngine_PN::loadGamePcFile() {
	if (getFileName(GAME_BASEFILE) != NULL) {
		Common::File in;
		// Read dataBase
		if (!in.open(getFileName(GAME_BASEFILE))) {
			error("loadGamePcFile: Can't load database file '%s'", getFileName(GAME_BASEFILE));
		}

		_dataBaseSize = in.size();
		_dataBase = (byte *)malloc(_dataBaseSize);
		if (_dataBase == NULL)
			error("loadGamePcFile: Out of memory for dataBase");
		in.read(_dataBase, _dataBaseSize);

		if (_dataBase[31] != 0)
			error("Later version of system requested");
	}

	if (getFileName(GAME_TEXTFILE) != NULL) {
		Common::File in;
		// Read textBase
		if (!in.open(getFileName(GAME_TEXTFILE))) {
			error("loadGamePcFile: Can't load textbase file '%s'", getFileName(GAME_TEXTFILE));
		}

		_textBaseSize = in.size();
		_textBase = (byte *)malloc(_textBaseSize);
		if (_textBase == NULL)
			error("loadGamePcFile: Out of memory for textBase");
		in.read(_textBase, _textBaseSize);

		if (_textBase[getlong(30L)] != 128)
			error("Unknown compression format");
	}
}

bool Debugger::Cmd_DumpFile(int argc, const char **argv) {
    if (argc != 2) {
        debugPrintf("Usage: %s <resource>\n", argv[0]);
    } else {
        Common::DumpFile outFile;
        Common::File inFile;

        if (!inFile.open(argv[1])) {
            debugPrintf("Specified resource does not exist\n");
        } else {
            outFile.open(argv[1]);
            byte *data = new byte[inFile.size()];

            inFile.read(data, inFile.size());
            outFile.write(data, inFile.size());
            outFile.flush();

            delete[] data;
            inFile.close();
            outFile.close();

            debugPrintf("File written successfully.\n");
        }
    }

    return true;
}

int main(int argc, char *argv[]) {
	if (argc != 3) {
		printf("Format: %s ST.exe titanic.dat\n", argv[0]);
		exit(0);
	}

	if (!inputFile.open(argv[1])) {
		error("Could not open input file");
	}
	res.loadFromEXE(argv[1]);

	if (inputFile.size() == ENGLISH_10042C_FILESIZE)
		_version = ENGLISH_10042C;
	else if (inputFile.size() == ENGLISH_10042B_FILESIZE)
		_version = ENGLISH_10042B;
	else if (inputFile.size() == ENGLISH_10042_FILESIZE)
		_version = ENGLISH_10042;
	else {
		printf("Unknown version of ST.exe specified");
		exit(0);
	}

	if (!outputFile.open(argv[2], Common::kFileWriteMode)) {
		error("Could not open output file");
	}

	writeHeader();
	writeData();
	writeFinalEntryHeader();

	inputFile.close();
	outputFile.close();
	return 0;
}

/**
 * Opens a file and loads a sound effect.
 *
 * @param fileName         Sfx filename
 *
 * @returns                True is everything is OK, False otherwise
 */
bool FPSfx::loadFile(const char *fileName) {
	if (!_soundSupported)
		return true;

	SoundCodecs codec = FPCODEC_UNKNOWN;

	Common::File file;
	if (file.open(fileName))
		codec = FPCODEC_ADPCM;
	else if (file.open(setExtension(fileName, ".MP3")))
		codec = FPCODEC_MP3;
	else if (file.open(setExtension(fileName, ".OGG")))
		codec = FPCODEC_OGG;
	else if (file.open(setExtension(fileName, ".FLA")))
		codec = FPCODEC_FLAC;
	else {
		warning("FPSfx::LoadFile(): Cannot open sfx file!");
		return false;
	}

	Common::SeekableReadStream *buffer;
	switch (codec) {
	case FPCODEC_ADPCM: {
		if (file.readUint32BE() != MKTAG('A', 'D', 'P', 0x10)) {
			warning("FPSfx::LoadFile(): Invalid ADP header!");
			return false;
		}

		uint32 rate = file.readUint32LE();
		uint32 channels = file.readUint32LE();

		buffer = file.readStream(file.size() - file.pos());
		_rewindableStream = Audio::makeADPCMStream(buffer, DisposeAfterUse::YES, 0, Audio::kADPCMDVI, rate, channels);
		}
		break;
	case FPCODEC_MP3:
#ifdef USE_MAD
		buffer = file.readStream(file.size());
		_rewindableStream = Audio::makeMP3Stream(buffer, DisposeAfterUse::YES);
#endif
		break;
	case FPCODEC_OGG:
#ifdef USE_VORBIS
		buffer = file.readStream(file.size());
		_rewindableStream = Audio::makeVorbisStream(buffer, DisposeAfterUse::YES);
#endif
		break;
	case FPCODEC_FLAC:
		buffer = file.readStream(file.size());
#ifdef USE_FLAC
		_rewindableStream = Audio::makeFLACStream(buffer, DisposeAfterUse::YES);
#endif
		break;
	default:
		return false;
	}

	_fileLoaded = true;
	return true;
}

uint SoundChannel::play(uint soundNum, uint repeats, uint notify) {
	stop();
	if (repeats == 0)
		return 1;

	// Find a sound of the given name
	Audio::AudioStream *stream;
	Common::File f;
	Common::String nameSnd = Common::String::format("sound%u.snd", soundNum);
	Common::String nameWav = Common::String::format("sound%u.wav", soundNum);
	Common::String nameAiff = Common::String::format("sound%u.aiff", soundNum);
#ifdef USE_MAD
	Common::String nameMp3 = Common::String::format("sound%u.mp3", soundNum);
#endif

	if (f.exists(nameSnd) && f.open(nameSnd)) {
		if (f.readUint16BE() != (f.size() - 2))
			error("Invalid sound filesize");
		repeats = f.readByte();
		f.skip(1);
		uint freq = f.readUint16BE();
		f.skip(2);
		uint size = f.readUint16BE();

		Common::SeekableReadStream *s = f.readStream(size);
		stream = Audio::makeRawStream(s, freq, Audio::FLAG_UNSIGNED);

#ifdef USE_MAD
	} else if (f.exists(nameMp3) && f.open(nameMp3)) {
		Common::SeekableReadStream *s = f.readStream(f.size());
		stream = Audio::makeMP3Stream(s, DisposeAfterUse::YES);
#endif
	} else if (f.exists(nameWav) && f.open(nameWav)) {
		Common::SeekableReadStream *s = f.readStream(f.size());
		stream = Audio::makeWAVStream(s, DisposeAfterUse::YES);

	} else if (f.exists(nameAiff) && f.open(nameAiff)) {
		Common::SeekableReadStream *s = f.readStream(f.size());
		stream = Audio::makeAIFFStream(s, DisposeAfterUse::YES);

	} else {
		warning("Could not find sound %u", soundNum);
		return 1;
	}

	_soundNum = soundNum;
	_notify = notify;

	// Set up a repeat if multiple repeats are specified
	if (repeats > 1) {
		Audio::RewindableAudioStream *rwStream = dynamic_cast<Audio::RewindableAudioStream *>(stream);
		assert(rwStream);
		stream = new Audio::LoopingAudioStream(rwStream, repeats, DisposeAfterUse::YES);
	}

	// Start playing the audio
	g_vm->_mixer->playStream(Audio::Mixer::kPlainSoundType, &_handle, stream);
	return 0;
}

Common::SeekableReadStream *MADSResourceManager::loadResource(const char *resourceName, bool loadFlag) {
	Common::File hagFile;
	uint32 offset = 0, size = 0;

	// If the first character is a '@' then look for an external file

	if (*resourceName == '@') {
		++resourceName;

		hagFile.open(resourceName);
		if (loadFlag)
			return hagFile.readStream(hagFile.size());
		else
			return new Common::SeekableSubReadStream(&hagFile, 0, hagFile.size());
	}

	// If the first character is the wildcard (resource indicator), skip over it
	if (*resourceName == '*')
		++resourceName;

	char resName[20];
	strcpy(resName, resourceName);
	str_upper(resName);

	hagFile.open(getResourceFilename(resName));

	// Validate hag file header
	char headerBuffer[16];
	if ((hagFile.read(headerBuffer, 16) != 16) || (strncmp(headerBuffer, madsConcatString, 10) != 0))
		error("Invalid HAG file opened");

	int numEntries = hagFile.readUint16LE();

	int resIndex = -1;
	while (++resIndex < numEntries) {
		// Read in the details of the next resource
		char resourceBuffer[14];
		offset = hagFile.readUint32LE();
		size = hagFile.readUint32LE();
		hagFile.read(resourceBuffer, 14);

		if (!strcmp(resName, resourceBuffer))
			break;
	}

	if (resIndex == numEntries)
		error("Invalid resource '%s' specified", resourceName);

	// Get the resource, either loading it in it's entirely or getting a stream reference

	if (loadFlag) {
		hagFile.seek(offset);
		return hagFile.readStream(size);
	} else {
		return new Common::SeekableSubReadStream(&hagFile, offset, offset + size);
	}
}

bool CruiseEngine::loadLanguageStrings() {
	Common::File f;

	// Give preference to a language file
	if (f.open("DELPHINE.LNG")) {
		char *data = (char *)MemAlloc(f.size());
		f.read(data, f.size());
		char *ptr = data;

		for (int i = 0; i < MAX_LANGUAGE_STRINGS; ++i) {
			// Get the start of the next string
			while (*ptr != '"') ++ptr;
			const char *v = ++ptr;

			// Find the end of the string, and replace the end '"' with a NULL
			while (*ptr != '"') ++ptr;
			*ptr++ = '\0';

			// Add the string to the list
			_langStrings.push_back(v);
		}

		f.close();
		MemFree(data);

	} else {
		// Try and use one of the pre-defined language lists
		const char **p = NULL;
		switch (getLanguage()) {
		case Common::EN_ANY:
			p = englishLanguageStrings;
			break;
		case Common::FR_FRA:
			p = frenchLanguageStrings;
			break;
		case Common::DE_DEU:
			p = germanLanguageStrings;
			break;
		case Common::IT_ITA:
			p = italianLanguageStrings;
			break;
		default:
			return false;
		}

		// Load in the located language set
		for (int i = 0; i < 13; ++i, ++p)
			_langStrings.push_back(*p);
	}

	return true;
}

bool GlulxeMetaEngine::detectGames(const Common::FSList &fslist, DetectedGames &gameList) {
	const char *const EXTENSIONS[3] = { ".ulx", ".blb", ".gblorb" };

	// Loop through the files of the folder
	for (Common::FSList::const_iterator file = fslist.begin(); file != fslist.end(); ++file) {
		// Check for a recognised filename
		if (file->isDirectory())
			continue;
		Common::String filename = file->getName();
		bool hasExt = false;
		for (int idx = 0; idx < 3 && !hasExt; ++idx)
			hasExt = filename.hasSuffixIgnoreCase(EXTENSIONS[idx]);
		if (!hasExt)
			continue;

		// Open up the file and calculate the md5
		Common::File gameFile;
		if (!gameFile.open(*file))
			continue;
		Common::String md5 = Common::computeStreamMD5AsString(gameFile, 5000);
		size_t filesize = gameFile.size();
		gameFile.close();

		// Check for known games
		const GlulxeGameDescription *p = GLULXE_GAMES;
		while (p->_gameId && (md5 != p->_md5 || filesize != p->_filesize))
			++p;

		DetectedGame gd;
		if (!p->_gameId) {
			if (filename.hasSuffixIgnoreCase(".blb"))
				continue;

			if (gDebugLevel > 0) {
				// Print an entry suitable for putting into the detection_tables.h, using the
				// name of the parent folder the game is in as the presumed game Id
				Common::String folderName = file->getParent().getName();
				if (folderName.hasSuffix("\\"))
					folderName.deleteLastChar();
				Common::String fname = filename;
				const char *dot = strchr(fname.c_str(), '.');
				if (dot)
					fname = Common::String(fname.c_str(), dot);

				debug("ENTRY0(\"%s\", \"%s\", %u),", fname.c_str(), md5.c_str(), (uint)filesize);
			}
			const PlainGameDescriptor &desc = GLULXE_GAME_LIST[0];
			gd = DetectedGame(desc.gameId, desc.description, Common::UNK_LANG, Common::kPlatformUnknown);
		} else {
			PlainGameDescriptor gameDesc = findGame(p->_gameId);
			gd = DetectedGame(p->_gameId, gameDesc.description, p->_language, Common::kPlatformUnknown, p->_extra);
			gd.setGUIOptions(GUIO4(GUIO_NOSPEECH, GUIO_NOSFX, GUIO_NOMUSIC, GUIO_NOSUBTITLES));
		}

		gd.addExtraEntry("filename", filename);
		gameList.push_back(gd);
	}

	return !gameList.empty();
}

// Dumps all of the game's music in external XMIDI *.xmi files
void dumpMusic() {
	Common::File midiFile;
	Common::DumpFile outFile;
	char outName[20];
	midiFile.open(MIDI_FILE);
	int outFileSize = 0;
	char buffer[20000];

	const int total = 155;	// maximum (SCN version)

	for (int i = 0; i < total; i++) {
		if (midiOffsets[i] == 0)
			break;

		sprintf(outName, "track%03d.xmi", i + 1);
		outFile.open(outName);

		if (i < total - 1)
			outFileSize = midiOffsets[i + 1] - midiOffsets[i] - 4;
		else
			outFileSize = midiFile.size() - midiOffsets[i] - 4;

		midiFile.seek(midiOffsets[i] + 4, SEEK_SET);

		assert(outFileSize < 20000);
		midiFile.read(buffer, outFileSize);
		outFile.write(buffer, outFileSize);

		outFile.close();
	}

	midiFile.close();
}

void writeParrotLobbyLinkUpdaterEntries() {
	static const int OFFSETS[3] = { 0x5A5B38, 0x5A5320, 0x5A4360 };
	static const int COUNTS[5] = { 7, 5, 6, 9, 1 };
	static const int SKIP[5] = { 36, 36, 40, 36, 0 };
	uint recordOffset = OFFSETS[_version], linkOffset;
	byte vals[8];

	outputFile.seek(dataOffset);

	for (int groupNum = 0; groupNum < 4; ++groupNum) {
		for (int entryNum = 0; entryNum < COUNTS[groupNum];
				++entryNum, recordOffset += 36) {
			inputFile.seek(recordOffset - FILE_DIFF[_version]);
			linkOffset = inputFile.readUint32LE();
			for (int idx = 0; idx < 8; ++idx)
				vals[idx] = inputFile.readUint32LE();

			// Write out the entry
			inputFile.seek(linkOffset - FILE_DIFF[_version]);
			outputFile.writeString(inputFile);
			outputFile.write(vals, 8);
		}

		// Skip space between groups
		recordOffset += SKIP[groupNum];
	}

	uint size = outputFile.size() - dataOffset;
	writeEntryHeader("DATA/PARROT_LOBBY_LINK_UPDATOR", dataOffset, size);
	dataOffset += size;
}

/**
 * Loads the contents of the mort.dat data file
 */
Common::ErrorCode MortevielleEngine::loadMortDat() {
	Common::File f;

	// Open the mort.dat file
	if (!f.open(MORT_DAT)) {
		Common::String msg = Common::String::format(_("Unable to locate the '%s' engine data file."), MORT_DAT);
		GUIErrorMessage(msg);
		return Common::kReadingFailed;
	}

	// Validate the data file header
	char fileId[4];
	f.read(fileId, 4);
	if (strncmp(fileId, "MORT", 4) != 0) {
		Common::String msg = Common::String::format(_("The '%s' engine data file is corrupt."), MORT_DAT);
		GUIErrorMessage(msg);
		return Common::kReadingFailed;
	}

	// Check the version
	int majVer = f.readByte();
	int minVer = f.readByte();

	if (majVer < MORT_DAT_REQUIRED_VERSION) {
		Common::String msg = Common::String::format(
			_("Incorrect version of the '%s' engine data file found. Expected %d.%d but got %d.%d."),
			MORT_DAT, MORT_DAT_REQUIRED_VERSION, 0, majVer, minVer);
		GUIErrorMessage(msg);
		return Common::kReadingFailed;
	}

	// Loop to load resources from the data file
	while (f.pos() < f.size()) {
		// Get the Id and size of the next resource
		char dataType[4];
		int dataSize;
		f.read(dataType, 4);
		dataSize = f.readUint16LE();

		if (!strncmp(dataType, "FONT", 4)) {
			// Font resource
			_screenSurface->readFontData(f, dataSize);
		} else if (!strncmp(dataType, "SSTR", 4)) {
			readStaticStrings(f, dataSize, kStaticStrings);
		} else if ((!strncmp(dataType, "GSTR", 4)) && (!_txxFileFl)) {
			readStaticStrings(f, dataSize, kGameStrings);
		} else if (!strncmp(dataType, "VERB", 4)) {
			_menu->readVerbNums(f, dataSize);
		} else {
			// Unknown section
			f.skip(dataSize);
		}
	}

	// Close the file
	f.close();

	assert(_engineStrings.size() > 0);
	return Common::kNoError;
}

bool AdvancedMetaEngine::getFileProperties(const Common::FSNode &parent, const FileMap &allFiles, const ADGameDescription &game, const Common::String fname, ADFileProperties &fileProps) const {
	// FIXME/TODO: We don't handle the case that a file is listed as a regular
	// file and as one with resource fork.

	if (game.flags & ADGF_MACRESFORK) {
		Common::MacResManager macResMan;

		if (!macResMan.open(parent, fname))
			return false;

		fileProps.md5 = macResMan.computeResForkMD5AsString(_md5Bytes);
		fileProps.size = macResMan.getResForkDataSize();

		if (fileProps.size != 0)
			return true;
	}

	if (!allFiles.contains(fname))
		return false;

	Common::File testFile;

	if (!testFile.open(allFiles[fname]))
		return false;

	fileProps.size = (int32)testFile.size();
	fileProps.md5 = Common::computeStreamMD5AsString(testFile, _md5Bytes);
	return true;
}

Common::SeekableReadStream *Resources::load(const Common::String &filename) {
	// First check if the file is directly in the cache
	if (_cache.isCached(filename))
		return _cache.get(filename);

	// Secondly, iterate through any loaded library file looking for a resource
	// that has the same name
	for (LibraryIndexes::iterator i = _indexes.begin(); i != _indexes.end(); ++i) {
		if (i->_value.contains(filename)) {
			// Get a stream reference to the given library file
			Common::SeekableReadStream *stream = load(i->_key);
			LibraryEntry &entry = i->_value[filename];
			_resourceIndex = entry._index;

			stream->seek(entry._offset);
			Common::SeekableReadStream *resStream = stream->readStream(entry._size);
			decompressIfNecessary(resStream);

			delete stream;
			return resStream;
		}
	}

	// At this point, fall back on a physical file with the given name
	Common::File f;
	if (!f.open(filename))
		error("Could not load file - %s", filename.c_str());

	Common::SeekableReadStream *stream = f.readStream(f.size());
	f.close();
	decompressIfNecessary(stream);

	return stream;
}

void writeResponseTree() {
	outputFile.seek(dataOffset);

	const uint OFFSETS[3] = { 0x619520, 0x618340, 0x617380 };
	for (int idx = 0; idx < 1022; ++idx) {
		inputFile.seek(OFFSETS[_version] - FILE_DIFF[_version] + idx * 8);
		uint id = inputFile.readLong();
		uint offset = inputFile.readLong();

		outputFile.writeLong(id);
		if (!id) {
			// An end of list id
		} else if (offset >= OFFSETS[_version] && offset <= (OFFSETS[_version] + 0x1FF0)) {
			// Offset to another table
			outputFile.writeByte(0);
			outputFile.writeLong((offset - OFFSETS[_version]) / 8);
		} else {
			// Offset to ASCIIZ string
			outputFile.writeByte(1);
			writeString(offset);
		}
	}

	uint size = outputFile.size() - dataOffset;
	writeEntryHeader("TEXT/TREE", dataOffset, size);
	dataOffset += size;
}

Audio::RewindableAudioStream *makeRawZorkStream(const Common::String &filePath, ZVision *engine) {
	Common::File *file = new Common::File();
	Common::String actualName = filePath;
	bool found = engine->getSearchManager()->openFile(*file, actualName);
	bool isRaw = actualName.hasSuffix(".raw");

	if ((!found && isRaw) || (found && isRaw && file->size() < 10)) {
		if (found)
			file->close();

		// Check for an audio patch (.src)
		actualName.setChar('s', actualName.size() - 3);
		actualName.setChar('r', actualName.size() - 2);
		actualName.setChar('c', actualName.size() - 1);

		if (!engine->getSearchManager()->openFile(*file, actualName))
			return NULL;
	} else if (!found && !isRaw) {
		return NULL;
	}

	// Get the file name
	Common::StringTokenizer tokenizer(actualName, "/\\");
	Common::String fileName;
	while (!tokenizer.empty()) {
		fileName = tokenizer.nextToken();
	}

	fileName.toLowercase();

	const SoundParams *soundParams = NULL;

	if (engine->getGameId() == GID_NEMESIS) {
		for (int i = 0; i < 32; ++i) {
			if (RawZorkStream::_zNemSoundParamLookupTable[i].identifier == (fileName[6]))
				soundParams = &RawZorkStream::_zNemSoundParamLookupTable[i];
		}
	} else if (engine->getGameId() == GID_GRANDINQUISITOR) {
		for (int i = 0; i < 24; ++i) {
			if (RawZorkStream::_zgiSoundParamLookupTable[i].identifier == (fileName[7]))
				soundParams = &RawZorkStream::_zgiSoundParamLookupTable[i];
		}
	}

	if (soundParams == NULL)
		return NULL;

	if (soundParams->packed) {
		return makeRawZorkStream(wrapBufferedSeekableReadStream(file, 2048, DisposeAfterUse::YES), soundParams->rate, soundParams->stereo, DisposeAfterUse::YES);
	} else {
		byte flags = 0;
		if (soundParams->bits16)
			flags |= Audio::FLAG_16BITS | Audio::FLAG_LITTLE_ENDIAN;
		if (soundParams->stereo)
			flags |= Audio::FLAG_STEREO;

		return Audio::makePCMStream(file, soundParams->rate, flags, DisposeAfterUse::YES);
	}
}