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//-----------------------------------------------------------------------------
//
// ImageLib Sources
// Copyright (C) 2000-2002 by Denton Woods
// Last modified: 01/29/2002 <--Y2K Compliant! =]
//
// Filename: src-IL/include/il_endian.h
//
// Description: Handles Endian-ness
//
//-----------------------------------------------------------------------------
#ifndef IL_ENDIAN_H
#define IL_ENDIAN_H
#include "il_internal.h"
#if (defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __BIG_ENDIAN__) \
|| (defined(__BIG_ENDIAN__) && !defined(__LITTLE_ENDIAN__))
#undef __LITTLE_ENDIAN__
#define Short(s) _SwapShort(s)
#define UShort(s) _SwapUShort(s)
#define Int(i) _SwapInt(i)
#define UInt(i) _SwapUInt(i)
#define Float(f) _SwapFloat(f)
#define Double(d) _SwapDouble(d)
#define BigShort(s)
#define BigUShort(s)
#define BigInt(i)
#define BigUInt(i)
#define BigFloat(f)
#define BigDouble(d)
#else
#undef __BIG_ENDIAN__
#undef __LITTLE_ENDIAN__ // Not sure if it's defined by any compiler...
#define __LITTLE_ENDIAN__
#define Short(s)
#define UShort(s)
#define Int(i)
#define UInt(i)
#define Float(f)
#define Double(d)
#define BigUShort(s) _SwapUShort(s)
#define BigUInt(i) _SwapUInt(i)
#define BigInt(i) _SwapInt(i)
#define BigUShort(s) _SwapUShort(s)
#define BigUInt(i) _SwapUInt(i)
#define BigFloat(f) _SwapFloat(f)
#define BigDouble(d) _SwapDouble(d)
#endif
ILvoid _SwapUShort(ILushort *s);
ILvoid _SwapShort(ILshort *s);
ILvoid _SwapUInt(ILuint *i);
ILvoid _SwapInt(ILint *i);
ILvoid _SwapFloat(ILfloat *f);
ILvoid _SwapDouble(ILdouble *d);
// Only seem to work on unsigned values properly...
#define SwapShort(s) ((s>>8) | (s<<8))
#define SwapInt(i) ((i>>24) | ((i>>8) & 0xff00) | ((i<<8) & 0xff0000) | (i<<24))
//#define SwapFloat(f) ((f>>24) | ((f>>8) & 0xff00) | ((f<<8) & 0xff0000) | (f<<24))
//#define SwapDouble(d) ((f>>56) | ((f>>40) & 0xff00) | ((f>>24) & 0xff0000) |
// ((f>>8) & 0xff000000) | ((f<<8) & 0xff00000000) | ((f<<24) & 0xff0000000000) | ((f<<40) & 0xff000000000000) | (f<<56))
ILushort GetLittleUShort(ILvoid);
ILshort GetLittleShort(ILvoid);
ILuint GetLittleUInt(ILvoid);
ILint GetLittleInt(ILvoid);
ILfloat GetLittleFloat(ILvoid);
ILdouble GetLittleDouble(ILvoid);
ILushort GetBigUShort(ILvoid);
ILshort GetBigShort(ILvoid);
ILuint GetBigUInt(ILvoid);
ILint GetBigInt(ILvoid);
ILfloat GetBigFloat(ILvoid);
ILdouble GetBigDouble(ILvoid);
ILubyte SaveLittleUShort(ILushort _s);
ILubyte SaveLittleShort(ILshort _s);
ILubyte SaveLittleUInt(ILuint _i);
ILubyte SaveLittleInt(ILint _i);
ILubyte SaveLittleFloat(ILfloat _f);
ILubyte SaveLittleDouble(ILdouble _d);
ILubyte SaveBigUShort(ILushort _s);
ILubyte SaveBigShort(ILshort _s);
ILubyte SaveBigUInt(ILuint _i);
ILubyte SaveBigInt(ILint _i);
ILubyte SaveBigFloat(ILfloat _f);
ILubyte SaveBigDouble(ILdouble _d);
ILvoid EndianSwapData(void *_Image);
#endif//ENDIAN_H
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