66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
/*****************************************************************************
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* tendian.h
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*
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* DESCRIPTION
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* This file contains all the utility functions that the Driver uses to
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* solve endian'ness related issues.
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*
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* HISTORY
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* 9/2002 Arthur Taylor (MDL / RSIS): Created.
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*
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* NOTES
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*****************************************************************************
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*/
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#ifndef TENDIAN_H
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#define TENDIAN_H
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#include <stdio.h>
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/*
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* MadeOnIntel ==> LittleEndian
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* NotMadeOnIntel ==> BigEndian
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*/
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#undef BIG_ENDIAN
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#undef LITTLE_ENDIAN
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#if defined(_LINUX_)
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#define LITTLE_ENDIAN
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#elif defined(_UNIX_)
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#define BIG_ENDIAN
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#elif defined(_WINDOWS_)
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#define LITTLE_ENDIAN
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#else
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#define LITTLE_ENDIAN
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#endif
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/* The following #defines are used to make the code easier to read. */
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#ifdef BIG_ENDIAN
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#define FREAD_BIG fread
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#define FREAD_LIT revfread
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#define FWRITE_BIG fwrite
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#define FWRITE_LIT revfwrite
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#define MEMCPY_BIG memcpy
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#define MEMCPY_LIT revmemcpy
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#else
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#define FREAD_BIG revfread
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#define FREAD_LIT fread
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#define FWRITE_BIG revfwrite
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#define FWRITE_LIT fwrite
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#define MEMCPY_BIG revmemcpy
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#define MEMCPY_LIT memcpy
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#endif
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void memswp (void *Data, const size_t elem_size, const size_t num_elem);
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void *revmemcpy (void *Dst, void *Src, const size_t len);
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void *revmemcpyRay (void *Dst, void *Src, const size_t elem_size,
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const size_t num_elem);
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size_t revfread (void *Dst, size_t elem_size, size_t num_elem, FILE *fp);
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size_t revfwrite (void *Src, size_t elem_size, size_t num_elem, FILE *fp);
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int memBitRead (void *Dst, size_t dstLen, void *Src, size_t numBits,
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unsigned char *BufLoc, int *numUsed);
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int memBitWrite (void *Src, size_t srcLen, void *Dst, size_t numBits,
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unsigned char *bufLoc, int *numUsed);
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#endif
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