bigendian.~h

来自「Jpeg编解码器的源代码」· ~H 代码 · 共 52 行

#ifndef CB__BIGENDIAN_H
#define CB__BIGENDIAN_H
//
// Copyright (c) 1997,1998 Colosseum Builders, Inc.
// All rights reserved.
//
// Colosseum Builders, Inc. makes no warranty, expressed or implied
// with regards to this software. It is provided as is.
//
// See the README.TXT file that came with this software for restrictions
// on the use and redistribution of this file or send E-mail to
// [e-mail]
//

inline UBYTE2 SystemToLittleEndian (UBYTE2 value)
{
  return ((value&0xFF) << 8)|((value&0xFF00)>>8) ;
}
inline UBYTE4 SystemToLittleEndian (UBYTE4 value)
{
  return ((value&0xFF000000L)>>24)|((value&0xFF0000L)>>8)
         | ((value&0xFF00L)<<8) | ((value&0xFFL)<<24) ;
}
inline UBYTE2 SystemToBigEndian (UBYTE2 value)
{
  return value ;
}
inline UBYTE4 SystemToBigEndian (UBYTE4 value)
{
  return value ;
}

inline UBYTE2 LittleEndianToSystem (UBYTE2 value)
{
  return ((value&0xFF) << 8)|((value&0xFF00)>>8) ;
}
inline UBYTE4 LittleEndianToSystem (UBYTE4 value)
{
  return ((value&0xFF000000L)>>24)|((value&0xFF0000L)>>8)
         | ((value&0xFF00L)<<8) | ((value&0xFFL)<<24) ;
}
inline UBYTE2 BigEndianToSystem (UBYTE2 value)
{
  return value ;
}
inline UBYTE4 BigEndianToSystem (UBYTE4 value)
{
  return value ;
}

#endif