增加Lua函数

libnpk/libNPK.h

@@ -29,7 +29,7 @@ enum ErrorCode
 	NPK_ERR_PARAM,
 	NPK_ERR_INVALID_STATE,
 	NPK_ERR_NEW_FAILED,
-
+	NPK_ERR_FILE_CREATE,
 	//Other errors
 	NPK_ERR_UNKNOWN
 };
@@ -98,6 +98,8 @@ public:
 	virtual uint32_t tell(void) const = 0;
 	virtual uint32_t crc32(void) = 0;
 	virtual bool isEOF(void) const = 0;
+
+	virtual bool writeToDiskFile(const wchar_t* diskPathFile) = 0;
 };
 
 class IFileList

libnpk/libNPK_Utils.h

@@ -33,7 +33,10 @@ bool clearPath(const char* szPath, bool recursion, bool removeSelf);
 bool createEmptyPath(const char* szPath);
 
 // Force create a directory path, ensuring all parent directories are created as needed.
-bool forceCreatePath(const char* szPath);
+bool forceCreatePath(const wchar_t* szPath);
+
+// Force create a directory path for the file 
+bool forceCreatePathForFile(const wchar_t* szFilePath);
 
 // Get the parent directory path of the specified path.
-void getParentPath(char* szPath);
+void getParentPath(wchar_t* szPath);

libnpk/source/libNPK_FileStream.cpp

@@ -84,4 +84,46 @@ uint32_t CFileStream::crc32(void)
 	return m_crc32;
 }
 
+bool CFileStream::writeToDiskFile(const wchar_t* diskPathFile)
+{
+	HANDLE hFile = ::CreateFileW(diskPathFile,
+		FILE_READ_DATA | FILE_WRITE_DATA | FILE_APPEND_DATA,
+		FILE_SHARE_READ | FILE_SHARE_WRITE,
+		0,
+		CREATE_ALWAYS,
+		FILE_ATTRIBUTE_ARCHIVE,
+		0);
+
+	if (hFile == INVALID_HANDLE_VALUE)
+	{
+		setLastError(NPK_ERR_FILE_CREATE, "Failed to open output file for writing, LastError=%d.", ::GetLastError());
+		return false; // Failed to open output file
+	}
+
+	//store current read offset
+	uint32_t currentOffset = m_currentOffset;
+	m_currentOffset = 0;
+	
+	//read loop
+	char buffer[4096] = { 0 };
+	uint32_t bytesRead = 0;
+
+	while ((bytesRead = this->read(buffer, sizeof(buffer))) > 0)
+	{
+		DWORD dwWriteBytes = 0;
+		if (!WriteFile(hFile, buffer, bytesRead, &dwWriteBytes, 0) ||
+			dwWriteBytes != bytesRead)
+		{
+			setLastError(NPK_ERR_FILE_WRITE, "Failed to write to output file, LastError=%d", ::GetLastError());
+
+			CloseHandle(hFile);
+			m_currentOffset = currentOffset;
+			return false; // Failed to write to output file
+		}
+	}
+	CloseHandle(hFile);
+	m_currentOffset = currentOffset;
+	return true;
+}
+
 }

libnpk/source/libNPK_FileStream.h

@@ -31,6 +31,8 @@ public:
 		return m_currentOffset >= m_fileSize;
 	}
 
+	virtual bool writeToDiskFile(const wchar_t* diskPathFile);
+
 protected:
 	//Pack file
 	CNPKFile* m_pNPKFile;
@@ -38,9 +40,9 @@ protected:
 	HANDLE m_hFileandle;
 	std::string m_fileName;
 	//offset of the file in the pak file
-	uint32_t m_fileOffset = 0;
+	const uint32_t m_fileOffset = 0;
 	//size of the file
-	uint32_t m_fileSize = 0;
+	const uint32_t m_fileSize = 0;
 	//current read offset in the file
 	uint32_t m_currentOffset = 0;
 	//CRC32 checksum of the file

libnpk/source/libNPK_Utils.cpp

@@ -258,34 +258,42 @@ bool createEmptyPath(const char* szPath)
 	return true;
 }
 
-void getParentPath(char* szPath)
+void getParentPath(wchar_t* szPath)
 {
 	if (!szPath || szPath[0] == 0) return;
-	size_t length = strlen(szPath);
-	std::replace(szPath, szPath+length, '/', '\\');
+	size_t length = wcslen(szPath);
+	std::replace(szPath, szPath+length, L'/', L'\\');
 
-	::PathRemoveFileSpecA(szPath);
+	::PathRemoveFileSpecW(szPath);
 }
 
-bool forceCreatePath(const char* szPath)
+bool forceCreatePath(const wchar_t* szPath)
 {
-	char szCurrentPath[MAX_PATH] = { 0 };
-	StringCchCopyA(szCurrentPath, MAX_PATH, szPath);
-	size_t length = strlen(szPath);
-	std::replace(szCurrentPath, szCurrentPath + length, '/', '\\');
+	wchar_t szCurrentPath[MAX_PATH] = { 0 };
+	StringCchCopyW(szCurrentPath, MAX_PATH, szPath);
+	size_t length = wcslen(szPath);
+	std::replace(szCurrentPath, szCurrentPath + length, L'/', L'\\');
 
 	//目录已经存在
-	if (::PathFileExists(szCurrentPath)) return true;
+	if (::PathFileExistsW(szCurrentPath)) return true;
 	//能够直接创建
-	if (::CreateDirectory(szCurrentPath, 0)) return true;
+	if (::CreateDirectoryW(szCurrentPath, 0)) return true;
 
 	//取得上一级目录
-	char szParentPath[MAX_PATH] = { 0 };
-	StringCchCopyA(szParentPath, MAX_PATH, szPath);
+	wchar_t szParentPath[MAX_PATH] = { 0 };
+	StringCchCopyW(szParentPath, MAX_PATH, szPath);
 	getParentPath(szParentPath);
 
 	//创建上一级目录
 	if (!forceCreatePath(szParentPath)) return false;
 
-	return TRUE == ::CreateDirectory(szCurrentPath, 0);
+	return TRUE == ::CreateDirectoryW(szCurrentPath, 0);
 }
+
+bool forceCreatePathForFile(const wchar_t* szFilePath)
+{
+	wchar_t szPathForFile[MAX_PATH] = { 0 };
+	StringCchCopyW(szPathForFile, MAX_PATH, szFilePath);
+	getParentPath(szPathForFile);
+	return forceCreatePath(szPathForFile);
+}