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//                     ..::  Interactive Internet Entertainment Platform  ::..

//

//                         (C) 2000-2005, FAN YI PENG. ALL RIGHTS RESERVED

//

// ________________________________________________________________________________________________

//

/// @file  IIEP_FileIn.H

/// @brief 文件输入接口类

// ________________________________________________________________________________________________

//

//

//                               _____________________________________

//                              |                                     |

//                              |                DATA                 |

// _____________________________|_____________________________________|____________________________

//

//                                            __________

// __________________________________________|  CONFIG  |__________________________________________

#pragma once

// ____________________________________________ CONFIG ____________________________________________

//

//                                            __________

// __________________________________________|  HEADER  |__________________________________________

#include <stdio.h>

#include <string>

#include <IIEP_Def.H>

// ____________________________________________ HEADER ____________________________________________

//

//                                            __________

// __________________________________________|  DEFINE  |__________________________________________

//

//      ___________

// ____/  CFileIn  \_______________________________________________________________________________

namespace IIEP

{

  /// @brief 文件输入接口类

  class CFileIn

  {

    public:

    CFileIn(void);

    ~CFileIn(void);

    bool Open(const char *pcszFileName);

    bool Open(const WORD *pcwsFileName);

    void Close(void);

    DWORD GetFileSize(void) const;

    DWORD GetReadPosition(void) const;

    bool Seek(long nOffset, long nOrigin = 0);  // SEEK_SET = 0     SEEK_CUR = 1     SEEK_END = 2

    bool Skip(long nOffset) { return Seek(nOffset, 1); }

    DWORD Read(PVOID pDataBuffer, DWORD dwReadSize);

    bool ReadB(BYTE &ucData)

    {

      return (1 == Read(&ucData, 1));

    }

    bool ReadW(WORD &wData)

    {

      return (2 == Read(&wData, 2));

    }

    bool ReadDW(DWORD &dwData)

    {

      return (4 == Read(&dwData, 4));

    }

    bool ReadInverseW(WORD &wData)

    {

      if (2 == Read(&wData, 2))

      {

        _asm

        {

          MOV       ECX, wData

          MOV       AX, [ECX]

          XCHG      AH, AL

          MOV       [ECX], AX

        }

        return true;

      }

      return false;

    }

    bool ReadInverseDW(DWORD &dwData)

    {

      if (4 == Read(&dwData, 4))

      {

        _asm

        {

          MOV       ECX, dwData

          MOV       EAX, [ECX]

          BSWAP     EAX

          MOV       [ECX], EAX

        }

        return true;

      }

      return false;

    }

    // --------------------------------------------------------------------------------------------

    bool ReadAnsiLine(std::string &strLine);

    bool ReadUnicodeLine(std::wstring &wstrLine, bool bBigEndian);

    bool ReadAnsiString   (char *pszBuffer, DWORD dwBufferLength);

    bool ReadUnicodeString(WORD *pwzBuffer, DWORD dwBufferLength);

    // --------------------------------------------------------------------------------------------

    private:

    CFileIn(const CFileIn &);				        // forbidden

    CFileIn & operator = (const CFileIn &);	// forbidden

    #include <CORE/CORE_FileIn.H>

  };

}

// ______ CFileIn _________________________________________________________________________________

//

//      _______________

// ____/  Memory File  \___________________________________________________________________________

namespace IIEP

{

  bool CreateMemoryFile(PVOID pMemory, DWORD dwLength, const char *pcszFileName);

  bool CreateMemoryFile(PVOID pMemory, DWORD dwLength, const WORD *pcwsFileName);

  bool RemoveMemoryFile(const char *pcszFileName);

  bool RemoveMemoryFile(const WORD *pcwsFileName);

  void RemoveMemoryFile(void);

}

// ______ Memory File _____________________________________________________________________________

//

// ____________________________________________ DEFINE ____________________________________________

//

// ____________________________________________________________________________________ DATA ______

//

// ___________________________________________ FILE END ___________________________________________