1 files changed, 440 insertions, 0 deletions
diff --git a/backends/platform/tizen/fs.cpp b/backends/platform/tizen/fs.cpp
new file mode 100644
index 0000000000..8145cd5638
--- /dev/null
+++ b/backends/platform/tizen/fs.cpp
@@ -0,0 +1,440 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+#include "common/translation.h"
+#include "backends/platform/tizen/system.h"
+#include "backends/platform/tizen/fs.h"
+
+#include <FAppApp.h>
+
+#define BUFFER_SIZE 1024
+
+using namespace Tizen::App;
+
+//
+// converts a Tizen (wchar) String into a scummVM (char) string
+//
+Common::String fromString(const Tizen::Base::String &in) {
+	ByteBuffer *buf = StringUtil::StringToUtf8N(in);
+	Common::String result((const char*)buf->GetPointer());
+	delete buf;
+	return result;
+}
+
+//
+// TizenFileStream
+//
+class TizenFileStream :
+	public Common::SeekableReadStream,
+	public Common::WriteStream,
+	public Common::NonCopyable {
+public:
+	static TizenFileStream *makeFromPath(const String &path, bool writeMode);
+
+	TizenFileStream(File *file, bool writeMode);
+	~TizenFileStream();
+
+	bool err() const;
+	void clearErr();
+	bool eos() const;
+
+	uint32 write(const void *dataPtr, uint32 dataSize);
+	bool flush();
+
+	int32 pos() const;
+	int32 size() const;
+	bool seek(int32 offs, int whence = SEEK_SET);
+	uint32 read(void *dataPtr, uint32 dataSize);
+
+private:
+	byte _buffer[BUFFER_SIZE];
+	uint32 _bufferIndex;
+	uint32 _bufferLength;
+	bool _writeMode;
+	File *_file;
+};
+
+TizenFileStream::TizenFileStream(File *ioFile, bool writeMode) :
+	_bufferIndex(0),
+	_bufferLength(0),
+	_writeMode(writeMode),
+	_file(ioFile) {
+	AppAssert(ioFile != 0);
+}
+
+TizenFileStream::~TizenFileStream() {
+	if (_file) {
+		if (_writeMode) {
+			flush();
+		}
+		delete _file;
+	}
+}
+
+bool TizenFileStream::err() const {
+	result r = GetLastResult();
+	return (r != E_SUCCESS && r != E_END_OF_FILE);
+}
+
+void TizenFileStream::clearErr() {
+	SetLastResult(E_SUCCESS);
+}
+
+bool TizenFileStream::eos() const {
+	return (_bufferLength - _bufferIndex == 0) && (GetLastResult() == E_END_OF_FILE);
+}
+
+int32 TizenFileStream::pos() const {
+	return _file->Tell() - (_bufferLength - _bufferIndex);
+}
+
+int32 TizenFileStream::size() const {
+	int32 oldPos = _file->Tell();
+	_file->Seek(FILESEEKPOSITION_END, 0);
+
+	int32 length = _file->Tell();
+	SetLastResult(_file->Seek(FILESEEKPOSITION_BEGIN, oldPos));
+
+	return length;
+}
+
+bool TizenFileStream::seek(int32 offs, int whence) {
+	bool result = false;
+	switch (whence) {
+	case SEEK_SET:
+		// set from start of file
+		SetLastResult(_file->Seek(FILESEEKPOSITION_BEGIN, offs));
+		result = (E_SUCCESS == GetLastResult());
+		break;
+
+	case SEEK_CUR:
+		// set relative to offs
+		if (_bufferIndex < _bufferLength && _bufferIndex > (uint32)-offs) {
+			// re-position within the buffer
+			SetLastResult(E_SUCCESS);
+			_bufferIndex += offs;
+			return true;
+		} else {
+			offs -= (_bufferLength - _bufferIndex);
+			if (offs < 0 && _file->Tell() + offs < 0) {
+				// avoid negative positioning
+				offs = 0;
+			}
+			if (offs != 0) {
+				SetLastResult(_file->Seek(FILESEEKPOSITION_CURRENT, offs));
+				result = (E_SUCCESS == GetLastResult());
+			} else {
+				result = true;
+			}
+		}
+		break;
+
+	case SEEK_END:
+		// set relative to end - positive will increase the file size
+		SetLastResult(_file->Seek(FILESEEKPOSITION_END, offs));
+		result = (E_SUCCESS == GetLastResult());
+		break;
+
+	default:
+		AppLog("Invalid whence %d", whence);
+		return false;
+	}
+
+	if (!result) {
+		AppLog("seek failed");
+	}
+
+	_bufferIndex = _bufferLength = 0;
+	return result;
+}
+
+uint32 TizenFileStream::read(void *ptr, uint32 len) {
+	uint32 result = 0;
+	if (!eos()) {
+		if (_bufferIndex < _bufferLength) {
+			// use existing buffer
+			uint32 available = _bufferLength - _bufferIndex;
+			if (len <= available) {
+				// use allocation
+				memcpy((byte *)ptr, &_buffer[_bufferIndex], len);
+				_bufferIndex += len;
+				result = len;
+			} else {
+				// use remaining allocation
+				memcpy((byte *)ptr, &_buffer[_bufferIndex], available);
+				uint32 remaining = len - available;
+				result = available;
+
+				if (remaining) {
+					result += _file->Read(((byte *)ptr) + available, remaining);
+				}
+				_bufferIndex = _bufferLength = 0;
+			}
+		} else if (len < BUFFER_SIZE) {
+			// allocate and use buffer
+			_bufferIndex = 0;
+			_bufferLength = _file->Read(_buffer, BUFFER_SIZE);
+			if (_bufferLength) {
+				if (_bufferLength < len) {
+					len = _bufferLength;
+				}
+				memcpy((byte *)ptr, _buffer, len);
+				result = _bufferIndex = len;
+			}
+		} else {
+			result = _file->Read((byte *)ptr, len);
+			_bufferIndex = _bufferLength = 0;
+		}
+	} else {
+		AppLog("Attempted to read past EOS");
+	}
+	return result;
+}
+
+uint32 TizenFileStream::write(const void *ptr, uint32 len) {
+	result r = _file->Write(ptr, len);
+	SetLastResult(r);
+	return (r == E_SUCCESS ? len : 0);
+}
+
+bool TizenFileStream::flush() {
+	logEntered();
+	SetLastResult(_file->Flush());
+	return (E_SUCCESS == GetLastResult());
+}
+
+TizenFileStream *TizenFileStream::makeFromPath(const String &path, bool writeMode) {
+	File *ioFile = new File();
+
+	String filePath = path;
+	if (writeMode && (path[0] != '.' && path[0] != '/')) {
+		filePath.Insert(App::GetInstance()->GetAppDataPath() + L"/", 0);
+	}
+
+	AppLog("Open file %S", filePath.GetPointer());
+	TizenFileStream *stream;
+	result r = ioFile->Construct(filePath, writeMode ? L"w" : L"r", writeMode);
+	if (r == E_SUCCESS) {
+		stream = new TizenFileStream(ioFile, writeMode);
+	} else {
+		AppLog("Failed to open file");
+		delete ioFile;
+		stream = NULL;
+	}
+	return stream;
+}
+
+//
+// TizenFilesystemNode
+//
+TizenFilesystemNode::TizenFilesystemNode(const Common::String &nodePath) {
+	AppAssert(nodePath.size() > 0);
+	init(nodePath);
+}
+
+TizenFilesystemNode::TizenFilesystemNode(SystemPath systemPath) {
+	switch (systemPath) {
+	case kData:
+		_unicodePath = App::GetInstance()->GetAppDataPath();
+		_displayName = _s("[ Data ]");
+		break;
+	case kResource:
+		_unicodePath = App::GetInstance()->GetAppResourcePath();
+		_displayName = _s("[ Resources ]");
+		break;
+	case kSdCard:
+		_unicodePath = Tizen::System::Environment::GetExternalStoragePath();
+		_displayName = _s("[ SDCard ]");
+		break;
+	case kMedia:
+		_unicodePath = Tizen::System::Environment::GetMediaPath();
+		_displayName = _s("[ Media ]");
+		break;
+	case kShared:
+		_unicodePath = App::GetInstance()->GetAppSharedPath();
+		_displayName = _s("[ Shared ]");
+		break;
+	}
+	_path = ::fromString(_unicodePath);
+	_isValid = _isVirtualDir = !IsFailed(File::GetAttributes(_unicodePath, _attr));
+}
+
+TizenFilesystemNode::TizenFilesystemNode(const Common::String &root, const Common::String &nodePath) {
+	AppLog("TizenFilesystemNode '%s' '%s'", root.c_str(), nodePath.c_str());
+
+	// Make sure the string contains no slashes
+	AppAssert(!nodePath.contains('/'));
+
+	// We assume here that path is already normalized (hence don't bother to
+	// call Common::normalizePath on the final path).
+	Common::String newPath(root);
+	if (root.lastChar() != '/') {
+		newPath += '/';
+	}
+	newPath += nodePath;
+
+	init(newPath);
+}
+
+void TizenFilesystemNode::init(const Common::String &nodePath) {
+	// Normalize the path (that is, remove unneeded slashes etc.)
+	_path = Common::normalizePath(nodePath, '/');
+	_displayName = Common::lastPathComponent(_path, '/');
+
+	StringUtil::Utf8ToString(_path.c_str(), _unicodePath);
+	_isVirtualDir = (_path == "/");
+	_isValid = _isVirtualDir || !IsFailed(File::GetAttributes(_unicodePath, _attr));
+}
+
+bool TizenFilesystemNode::exists() const {
+	return _isValid;
+}
+
+bool TizenFilesystemNode::isReadable() const {
+	return _isVirtualDir || _isValid;
+}
+
+bool TizenFilesystemNode::isDirectory() const {
+	return _isVirtualDir || (_isValid && _attr.IsDirectory());
+}
+
+bool TizenFilesystemNode::isWritable() const {
+	bool result = (_isValid && !_attr.IsReadOnly());
+	if (_unicodePath == App::GetInstance()->GetAppResourcePath()) {
+		result = false;
+	}
+	return result;
+}
+
+AbstractFSNode *TizenFilesystemNode::getChild(const Common::String &n) const {
+	AppAssert(!_path.empty());
+	AppAssert(isDirectory());
+	return new TizenFilesystemNode(_path, n);
+}
+
+bool TizenFilesystemNode::getChildren(AbstractFSList &myList, ListMode mode, bool hidden) const {
+	AppAssert(isDirectory());
+
+	bool result = false;
+
+	if (_isVirtualDir && mode != Common::FSNode::kListFilesOnly && _path == "/") {
+		// present well known TIZEN file system areas
+		myList.push_back(new TizenFilesystemNode(kData));
+		myList.push_back(new TizenFilesystemNode(kSdCard));
+		myList.push_back(new TizenFilesystemNode(kMedia));
+		myList.push_back(new TizenFilesystemNode(kShared));
+	}
+
+	if (!result) {
+		DirEnumerator *pDirEnum = 0;
+		Directory *pDir = new Directory();
+
+		// open directory
+		if (IsFailed(pDir->Construct(_unicodePath))) {
+			AppLog("Failed to open directory: %S", _unicodePath.GetPointer());
+		} else {
+			// read all directory entries
+			pDirEnum = pDir->ReadN();
+			if (pDirEnum) {
+				result = true;
+			}
+
+			// loop through all directory entries
+			while (pDirEnum && pDirEnum->MoveNext() == E_SUCCESS) {
+				DirEntry dirEntry = pDirEnum->GetCurrentDirEntry();
+
+				// skip 'invisible' files if necessary
+				Tizen::Base::String fileName = dirEntry.GetName();
+
+				if (fileName[0] == '.' && !hidden) {
+					continue;
+				}
+
+				// skip '.' and '..' to avoid cycles
+				if (fileName == L"." || fileName == L"..") {
+					continue;
+				}
+
+				// Honor the chosen mode
+				if ((mode == Common::FSNode::kListFilesOnly && dirEntry.IsDirectory()) ||
+						(mode == Common::FSNode::kListDirectoriesOnly && !dirEntry.IsDirectory())) {
+					continue;
+				}
+				myList.push_back(new TizenFilesystemNode(_path, ::fromString(fileName)));
+			}
+		}
+
+		// cleanup
+		if (pDirEnum) {
+			delete pDirEnum;
+		}
+
+		// close the opened directory
+		if (pDir) {
+			delete pDir;
+		}
+	}
+
+	return result;
+}
+
+AbstractFSNode *TizenFilesystemNode::getParent() const {
+  logEntered();
+	if (_path == "/") {
+		return 0; // The filesystem root has no parent
+	}
+
+	const char *start = _path.c_str();
+	const char *end = start + _path.size();
+
+	// Strip of the last component. We make use of the fact that at this
+	// point, path is guaranteed to be normalized
+	while (end > start && *(end-1) != '/') {
+		end--;
+	}
+
+	if (end == start) {
+		// This only happens if we were called with a relative path, for which
+		// there simply is no parent.
+		// TODO: We could also resolve this by assuming that the parent is the
+		//			 current working directory, and returning a node referring to that.
+		return NULL;
+	}
+
+	return new TizenFilesystemNode(Common::String(start, end));
+}
+
+Common::SeekableReadStream *TizenFilesystemNode::createReadStream() {
+	Common::SeekableReadStream *result = TizenFileStream::makeFromPath(_unicodePath, false);
+	if (result != NULL) {
+		_isValid = !IsFailed(File::GetAttributes(_unicodePath, _attr));
+	}
+	return result;
+}
+
+Common::WriteStream *TizenFilesystemNode::createWriteStream() {
+	Common::WriteStream *result = TizenFileStream::makeFromPath(_unicodePath, true);
+	if (result != NULL) {
+		_isValid = !IsFailed(File::GetAttributes(_unicodePath, _attr));
+	}
+	return result;
+}