C++ FSNode::createReadStream方法代码示例

Common::InSaveFile *DefaultSaveFileManager::openForLoading(const Common::String &filename) {
	// Ensure that the savepath is valid. If not, generate an appropriate error.
	Common::String savePathName = getSavePath();
	checkPath(Common::FSNode(savePathName));
	if (getError().getCode() != Common::kNoError)
		return 0;

	// recreate FSNode since checkPath may have changed/created the directory
	Common::FSNode savePath(savePathName);

	Common::FSNode file = savePath.getChild(filename);
	if (!file.exists())
		return 0;

	// Open the file for reading
	Common::SeekableReadStream *sf = file.createReadStream();

	return Common::wrapCompressedReadStream(sf);
}

PackageSet::PackageSet(Common::FSNode file, const Common::String &filename, bool searchSignature) {
	uint32 absoluteOffset = 0;
	_priority = 0;
	bool boundToExe = false;
	Common::SeekableReadStream *stream = file.createReadStream();
	if (!stream) {
		return;
	}
	if (searchSignature) {
		uint32 offset;
		if (!findPackageSignature(stream, &offset)) {
			delete stream;
			return;
		} else {
			stream->seek(offset, SEEK_SET);
			absoluteOffset = offset;
			boundToExe = true;
		}
	}

	TPackageHeader hdr;
	hdr.readFromStream(stream);
	if (hdr._magic1 != PACKAGE_MAGIC_1 || hdr._magic2 != PACKAGE_MAGIC_2 || hdr._packageVersion > PACKAGE_VERSION) {
		debugC(kWintermuteDebugFileAccess | kWintermuteDebugLog, "  Invalid header in package file '%s'. Ignoring.", filename.c_str());
		delete stream;
		return;
	}

	if (hdr._packageVersion != PACKAGE_VERSION) {
		debugC(kWintermuteDebugFileAccess | kWintermuteDebugLog, "  Warning: package file '%s' is outdated.", filename.c_str());
	}
	_priority = hdr._priority;
	// new in v2
	if (hdr._packageVersion == PACKAGE_VERSION) {
		uint32 dirOffset;
		dirOffset = stream->readUint32LE();
		dirOffset += absoluteOffset;
		stream->seek(dirOffset, SEEK_SET);
	}
	assert(hdr._numDirs == 1);
	for (uint32 i = 0; i < hdr._numDirs; i++) {
		BasePackage *pkg = new BasePackage();
		if (!pkg) {
			return;
		}
		pkg->_fsnode = file;

		pkg->_boundToExe = boundToExe;

		// read package info
		byte nameLength = stream->readByte();
		char *pkgName = new char[nameLength];
		stream->read(pkgName, nameLength);
		pkg->_name = pkgName;
		pkg->_cd = stream->readByte();
		pkg->_priority = hdr._priority;
		delete[] pkgName;
		pkgName = nullptr;

		if (!hdr._masterIndex) {
			pkg->_cd = 0;    // override CD to fixed disk
		}
		_packages.push_back(pkg);

		// read file entries
		uint32 numFiles = stream->readUint32LE();

		for (uint32 j = 0; j < numFiles; j++) {
			char *name;
			uint32 offset, length, compLength, flags;/*, timeDate1, timeDate2;*/

			nameLength = stream->readByte();
			name = new char[nameLength];
			stream->read(name, nameLength);

			// v2 - xor name
			if (hdr._packageVersion == PACKAGE_VERSION) {
				for (int k = 0; k < nameLength; k++) {
					((byte *)name)[k] ^= 'D';
				}
			}
			debugC(kWintermuteDebugFileAccess, "Package contains %s", name);

			Common::String upcName = name;
			upcName.toUppercase();
			delete[] name;
			name = nullptr;

			offset = stream->readUint32LE();
			offset += absoluteOffset;
			length = stream->readUint32LE();
			compLength = stream->readUint32LE();
			flags = stream->readUint32LE();

			if (hdr._packageVersion == PACKAGE_VERSION) {
				/* timeDate1 = */ stream->readUint32LE();
				/* timeDate2 = */ stream->readUint32LE();
			}
			_filesIter = _files.find(upcName);
			if (_filesIter == _files.end()) {
//.........这里部分代码省略.........

const ADGameDescription *SciMetaEngine::fallbackDetect(const FileMap &allFiles, const Common::FSList &fslist) const {
	bool foundResMap = false;
	bool foundRes000 = false;

	// Set some defaults
	s_fallbackDesc.extra = "";
	s_fallbackDesc.language = Common::EN_ANY;
	s_fallbackDesc.flags = ADGF_NO_FLAGS;
	s_fallbackDesc.platform = Common::kPlatformPC;	// default to PC platform
	s_fallbackDesc.gameid = "sci";
	s_fallbackDesc.guioptions = Common::GUIO_NONE;

	if (allFiles.contains("resource.map") || allFiles.contains("Data1")
	    || allFiles.contains("resmap.001") || allFiles.contains("resmap.001")) {
		foundResMap = true;
	}

	// Determine if we got a CD version and set the CD flag accordingly, by checking for
	// resource.aud for SCI1.1 CD games, or audio001.002 for SCI1 CD games. We assume that
	// the file should be over 10MB, as it contains all the game speech and is usually
	// around 450MB+. The size check is for some floppy game versions like KQ6 floppy, which
	// also have a small resource.aud file
	if (allFiles.contains("resource.aud") || allFiles.contains("audio001.002")) {
		Common::FSNode file = allFiles.contains("resource.aud") ? allFiles["resource.aud"] :  allFiles["audio001.002"];
		Common::SeekableReadStream *tmpStream = file.createReadStream();
		if (tmpStream->size() > 10 * 1024 * 1024) {
			// We got a CD version, so set the CD flag accordingly
			s_fallbackDesc.flags |= ADGF_CD;
		}
		delete tmpStream;
	}

	if (allFiles.contains("resource.000") || allFiles.contains("resource.001")
		|| allFiles.contains("ressci.000") || allFiles.contains("ressci.001"))
		foundRes000 = true;

	// Data1 contains both map and volume for SCI1.1+ Mac games
	if (allFiles.contains("Data1")) {
		foundResMap = foundRes000 = true;
		 s_fallbackDesc.platform = Common::kPlatformMacintosh;
	}

	// Determine the game platform
	// The existence of any of these files indicates an Amiga game
	if (allFiles.contains("9.pat") || allFiles.contains("spal") ||
		allFiles.contains("patch.005") || allFiles.contains("bank.001"))
			s_fallbackDesc.platform = Common::kPlatformAmiga;

	// The existence of 7.pat or patch.200 indicates a Mac game
	if (allFiles.contains("7.pat") || allFiles.contains("patch.200"))
		s_fallbackDesc.platform = Common::kPlatformMacintosh;

	// The data files for Atari ST versions are the same as their DOS counterparts


	// If these files aren't found, it can't be SCI
	if (!foundResMap && !foundRes000) {
		return 0;
	}

	Common::ScopedPtr<ResourceManager> resMan(new ResourceManager());
	assert(resMan);
	resMan->addAppropriateSources(fslist);
	resMan->init(true);
	// TODO: Add error handling.

#ifndef ENABLE_SCI32
	// Is SCI32 compiled in? If not, and this is a SCI32 game,
	// stop here
	if (getSciVersion() >= SCI_VERSION_2) {
		return (const ADGameDescription *)&s_fallbackDesc;
	}
#endif

	ViewType gameViews = resMan->getViewType();

	// Have we identified the game views? If not, stop here
	// Can't be SCI (or unsupported SCI views). Pinball Creep by sierra also uses resource.map/resource.000 files
	//  but doesnt share sci format at all, if we dont return 0 here we will detect this game as SCI
	if (gameViews == kViewUnknown) {
		return 0;
	}

	// Set the platform to Amiga if the game is using Amiga views
	if (gameViews == kViewAmiga)
		s_fallbackDesc.platform = Common::kPlatformAmiga;

	// Determine the game id
	Common::String sierraGameId = resMan->findSierraGameId();

	// If we don't have a game id, the game is not SCI
	if (sierraGameId.empty()) {
		return 0;
	}

	Common::String gameId = convertSierraGameId(sierraGameId, &s_fallbackDesc.flags, resMan);
	strncpy(s_fallbackGameIdBuf, gameId.c_str(), sizeof(s_fallbackGameIdBuf) - 1);
	s_fallbackGameIdBuf[sizeof(s_fallbackGameIdBuf) - 1] = 0;	// Make sure string is NULL terminated
	s_fallbackDesc.gameid = s_fallbackGameIdBuf;

//.........这里部分代码省略.........

Common::InSaveFile *Ps2SaveFileManager::openForLoading(const Common::String &filename) {
	Common::FSNode savePath(ConfMan.get("savepath")); // TODO: is this fast?
	Common::SeekableReadStream *sf;

	if (!savePath.exists() || !savePath.isDirectory())
		return NULL;

	// _screen->wantAnim(true);

	if (_getDev(savePath) == MC_DEV) {
	// if (strncmp(savePath.getPath().c_str(), "mc0:", 4) == 0) {
		char path[32];

		// FIXME : hack for indy4 iq-points
		if (filename == "iq-points") {
			mcCheck("mc0:ScummVM/indy4");
			sprintf(path, "mc0:ScummVM/indy4/iq-points");
		}
		// FIXME : hack for bs1 saved games
		else if (filename == "SAVEGAME.INF") {
			mcCheck("mc0:ScummVM/sword1");
			sprintf(path, "mc0:ScummVM/sword1/SAVEGAME.INF");
		}
		else {
			char temp[32];
			printf("MC : filename = %s\n", filename.c_str());
			strcpy(temp, filename.c_str());

			// mcSplit(temp, game, ext);
			char *game = strdup(strtok(temp, "."));
			char *ext = strdup(strtok(NULL, "*"));
			sprintf(path, "mc0:ScummVM/%s", game); // per game path

			// mcCheck(path); // needed on load ?
			sprintf(path, "mc0:ScummVM/%s/%s.sav", game, ext);

			free(game);
			free(ext);
		}


		Common::FSNode file(path);

		if (!file.exists())
			return NULL;

		sf = file.createReadStream();

	} else {
		Common::FSNode file = savePath.getChild(filename);

		if (!file.exists())
			return NULL;

		sf = file.createReadStream();
	}

	// _screen->wantAnim(false);

	return Common::wrapCompressedReadStream(sf);
}

Common::SeekableReadStream *openDiskFile(const Common::String &filename) {
	uint32 prefixSize = 0;
	Common::SeekableReadStream *file = NULL;
	Common::String fixedFilename = filename;

	// Absolute path: TODO: Add specific fallbacks here.
	if (filename.contains(':')) {
		if (filename.hasPrefix("c:\\windows\\fonts\\")) { // East Side Story refers to "c:\windows\fonts\framd.ttf"
			fixedFilename = filename.c_str() + 17;
		} else {
			error("openDiskFile::Absolute path or invalid filename used in %s", filename.c_str());
		}
	}
	// Try directly from SearchMan first
	Common::ArchiveMemberList files;
	SearchMan.listMatchingMembers(files, fixedFilename);

	for (Common::ArchiveMemberList::iterator it = files.begin(); it != files.end(); ++it) {
		if ((*it)->getName() == filename) {
			file = (*it)->createReadStream();
			break;
		}
	}
	// File wasn't found in SearchMan, try to parse the path as a relative path.
	if (!file) {
		Common::FSNode searchNode = getNodeForRelativePath(filename);
		if (searchNode.exists() && !searchNode.isDirectory() && searchNode.isReadable()) {
			file = searchNode.createReadStream();
		}
	}
	if (file) {
		uint32 magic1, magic2;
		magic1 = file->readUint32LE();
		magic2 = file->readUint32LE();

		bool compressed = false;
		if (magic1 == DCGF_MAGIC && magic2 == COMPRESSED_FILE_MAGIC) {
			compressed = true;
		}

		if (compressed) {
			uint32 dataOffset, compSize, uncompSize;
			dataOffset = file->readUint32LE();
			compSize = file->readUint32LE();
			uncompSize = file->readUint32LE();

			byte *compBuffer = new byte[compSize];
			if (!compBuffer) {
				error("Error allocating memory for compressed file '%s'", filename.c_str());
				delete file;
				return NULL;
			}

			byte *data = new byte[uncompSize];
			if (!data) {
				error("Error allocating buffer for file '%s'", filename.c_str());
				delete[] compBuffer;
				delete file;
				return NULL;
			}
			file->seek(dataOffset + prefixSize, SEEK_SET);
			file->read(compBuffer, compSize);

			if (Common::uncompress(data, (unsigned long *)&uncompSize, compBuffer, compSize) != true) {
				error("Error uncompressing file '%s'", filename.c_str());
				delete[] compBuffer;
				delete file;
				return NULL;
			}

			delete[] compBuffer;
			delete file;
			return new Common::MemoryReadStream(data, uncompSize, DisposeAfterUse::YES);
		} else {
			file->seek(0, SEEK_SET);
			return file;
		}

		return file;

	}
	return NULL;
}

ZipArchive::ZipArchive(const Common::FSNode &node) {
	SeekableReadStream *stream = node.createReadStream();
	_zipFile = unzOpen(stream);
}

TestExitStatus CloudTests::testUploading() {
	ConfParams.setCloudTestCallbackCalled(false);
	ConfParams.setCloudTestErrorCallbackCalled(false);

	if (CloudMan.getCurrentStorage() == nullptr) {
		Testsuite::logPrintf("Couldn't find connected Storage\n");
		return kTestFailed;
	}

	Common::String info = "Testing Cloud Storage API upload() method.\n"
		"In this test we'll try to upload a 'test1/file.txt' file.";

	if (Testsuite::handleInteractiveInput(info, "OK", "Skip", kOptionRight)) {
		Testsuite::logPrintf("Info! Skipping test : upload()\n");
		return kTestSkipped;
	}

	if (!ConfParams.isGameDataFound()) {
		Testsuite::logPrintf("Info! Couldn't find the game data, so skipping test : upload()\n");
		return kTestSkipped;
	}

	const Common::String &path = ConfMan.get("path");
	Common::FSDirectory gameRoot(path);
	Common::FSDirectory *directory = gameRoot.getSubDirectory("test1");
	Common::FSNode node = directory->getFSNode().getChild("file.txt");
	delete directory;

	if (CloudMan.getCurrentStorage()->uploadStreamSupported()) {
		if (CloudMan.getCurrentStorage()->upload(
				Common::String(getRemoteTestPath()) + "/testfile.txt",
				node.createReadStream(),
				new Common::GlobalFunctionCallback<Cloud::Storage::UploadResponse>(&fileUploadedCallback),
				new Common::GlobalFunctionCallback<Networking::ErrorResponse>(&errorCallback)
			) == nullptr) {
			Testsuite::logPrintf("Warning! No Request is returned!\n");
		}
	} else {
		Common::String filepath = node.getPath();
		if (CloudMan.getCurrentStorage()->upload(
				Common::String(getRemoteTestPath()) + "/testfile.txt",
				filepath.c_str(),
				new Common::GlobalFunctionCallback<Cloud::Storage::UploadResponse>(&fileUploadedCallback),
				new Common::GlobalFunctionCallback<Networking::ErrorResponse>(&errorCallback)
			) == nullptr) {
			Testsuite::logPrintf("Warning! No Request is returned!\n");
		}
	}

	if (!waitForCallbackMore()) return kTestSkipped;
	Testsuite::clearScreen();

	if (ConfParams.isCloudTestErrorCallbackCalled()) {
		Testsuite::logPrintf("Error callback was called\n");
		return kTestFailed;
	}

	Common::String info2 = "upload() is finished. Do you want to list '/testbed' directory?";

	if (!Testsuite::handleInteractiveInput(info2, "Yes", "No", kOptionRight)) {
		ConfParams.setCloudTestCallbackCalled(false);

		if (CloudMan.listDirectory(
				getRemoteTestPath(),
				new Common::GlobalFunctionCallback<Cloud::Storage::FileArrayResponse>(&directoryListedCallback),
				new Common::GlobalFunctionCallback<Networking::ErrorResponse>(&errorCallback)
			) == nullptr) {
			Testsuite::logPrintf("Warning! No Request is returned!\n");
		}

		if (!waitForCallbackMore()) return kTestSkipped;
		Testsuite::clearScreen();

		if (ConfParams.isCloudTestErrorCallbackCalled()) {
			Testsuite::logPrintf("Error callback was called\n");
			return kTestFailed;
		}
	}

	if (Testsuite::handleInteractiveInput("Was the CloudMan able to upload into 'testbed/testfile.txt' file?", "Yes", "No", kOptionRight)) {
		Testsuite::logDetailedPrintf("Error! File was not uploaded!\n");
		return kTestFailed;
	}

	Testsuite::logDetailedPrintf("File was uploaded\n");
	return kTestPassed;
}