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/****************************************************************************
* NCSA HDF *
* Software Development Group *
* National Center for Supercomputing Applications *
* University of Illinois at Urbana-Champaign *
* 605 E. Springfield, Champaign IL 61820 *
* *
* For conditions of distribution and use, see the accompanying *
* hdf/COPYING file. *
* *
****************************************************************************/
/* $Id$ */
/*
* This file contains macros & information for file meta information
* (offsets, lengths, etc.)
*/
#ifndef HDF5META_H
#define HDF5META_H
/*-----------------------------------------------------*/
/* Encode and decode macros for file meta-data */
/* (Currently, all file meta-data is little-endian) */
/*-----------------------------------------------------*/
/* For non-little-endian platforms, encode each byte by itself */
#if ((DF_MT&0xFFF0)!=0x4440)
# define INT16ENCODE(p, i) \
{ *(p) = (uint8)((uintn)(i) & 0xff); (p)++; *(p) = (uint8)(((uintn)(i) >> 8) & 0xff); (p)++; }
# define UINT16ENCODE(p, i) \
{ *(p) = (uint8)((i) & 0xff); (p)++; *(p) = (uint8)(((uintn)(i) >> 8) & 0xff); (p)++; }
# define INT32ENCODE(p, i) \
{ *(p) = (uint8)((uint32)(i) & 0xff); (p)++; \
*(p) = (uint8)(((uint32)(i) >> 8) & 0xff); (p)++; \
*(p) = (uint8)(((uint32)(i) >> 16) & 0xff); (p)++; \
*(p) = (uint8)(((uint32)(i) >> 24) & 0xff); (p)++; }
# define UINT32ENCODE(p, i) \
{ *(p) = (uint8)((i) & 0xff); (p)++; \
*(p) = (uint8)(((i) >> 8) & 0xff); (p)++; \
*(p) = (uint8)(((i) >> 16) & 0xff); (p)++; \
*(p) = (uint8)(((i) >> 24) & 0xff); (p)++; }
#ifdef HDF5_HAVE_NATIVE_INT64
# define INT64ENCODE(p, i) \
{ *(p) = (uint8)((uint64)(i) & 0xff); (p)++; \
*(p) = (uint8)(((uint64)(i) >> 8) & 0xff); (p)++; \
*(p) = (uint8)(((uint64)(i) >> 16) & 0xff); (p)++; \
*(p) = (uint8)(((uint64)(i) >> 24) & 0xff); (p)++; \
*(p) = (uint8)(((uint64)(i) >> 32) & 0xff); (p)++; \
*(p) = (uint8)(((uint64)(i) >> 40) & 0xff); (p)++; \
*(p) = (uint8)(((uint64)(i) >> 48) & 0xff); (p)++; \
*(p) = (uint8)(((uint64)(i) >> 56) & 0xff); (p)++; }
# define UINT64ENCODE(p, i) \
{ *(p) = (uint8)((i) & 0xff); (p)++; \
*(p) = (uint8)(((i) >> 8) & 0xff); (p)++; \
*(p) = (uint8)(((i) >> 16) & 0xff); (p)++; \
*(p) = (uint8)(((i) >> 24) & 0xff); (p)++; \
*(p) = (uint8)(((i) >> 32) & 0xff); (p)++; \
*(p) = (uint8)(((i) >> 40) & 0xff); (p)++; \
*(p) = (uint8)(((i) >> 48) & 0xff); (p)++; \
*(p) = (uint8)(((i) >> 56) & 0xff); (p)++; }
#else /* HDF5_HAVE_NATIVE_INT64 */
#error "Define int64 on platforms which don't support it"
#endif /* HDF5_HAVE_NATIVE_INT64 */
# define INT16DECODE(p, i) \
{ (i) = (int16)((*(p) & 0xff)); (p)++; \
(i) |= (int16)((*(p) & 0xff) << 8); (p)++; }
# define UINT16DECODE(p, i) \
{ (i) = (uint16)(*(p) & 0xff); (p)++; \
(i) |= (uint16)((*(p) & 0xff) << 8); (p)++; }
# define INT32DECODE(p, i) \
{ (i) = (*(p) & 0xff); (p)++; \
(i) |= ((int32)(*(p) & 0xff) << 8); (p)++; \
(i) |= ((int32)(*(p) & 0xff) << 16); (p)++; \
(i) |= ((int32)(*(p) & 0xff) << 24); (p)++; }
# define UINT32DECODE(p, i) \
{ (i) = (uint32)(*(p) & 0xff); (p)++; \
(i) |= ((uint32)(*(p) & 0xff) << 8); (p)++; \
(i) |= ((uint32)(*(p) & 0xff) << 16); (p)++; \
(i) |= ((uint32)(*(p) & 0xff) << 24); (p)++; }
#ifdef HDF5_HAVE_NATIVE_INT64
#define INT64DECODE(p, i) \
{ (i) = (*(p) & 0xff); (p)++; \
(i) |= ((int64)(*(p) & 0xff) << 8); (p)++; \
(i) |= ((int64)(*(p) & 0xff) << 16); (p)++; \
(i) |= ((int64)(*(p) & 0xff) << 24); (p)++; \
(i) |= ((int64)(*(p) & 0xff) << 32); (p)++; \
(i) |= ((int64)(*(p) & 0xff) << 40); (p)++; \
(i) |= ((int64)(*(p) & 0xff) << 48); (p)++; \
(i) |= ((int64)(*(p) & 0xff) << 56); (p)++; }
# define UINT64DECODE(p, i) \
{ (i) = (uint64)(*(p) & 0xff); (p)++; \
(i) |= ((uint64)(*(p) & 0xff) << 8); (p)++; \
(i) |= ((uint64)(*(p) & 0xff) << 16); (p)++; \
(i) |= ((uint64)(*(p) & 0xff) << 24); (p)++; \
(i) |= ((uint64)(*(p) & 0xff) << 32); (p)++; \
(i) |= ((uint64)(*(p) & 0xff) << 40); (p)++; \
(i) |= ((uint64)(*(p) & 0xff) << 48); (p)++; \
(i) |= ((uint64)(*(p) & 0xff) << 56); (p)++; }
#else /* HDF5_HAVE_NATIVE_INT64 */
#error "Define int64 on platforms which don't support it"
#endif /* HDF5_HAVE_NATIVE_INT64 */
#else /* platform has little-endian integers */
/* For little-endian platforms, make the compiler do the work */
# define INT16ENCODE(p, i) { *((int16 *)(p)) = (int16)(i); (p)+=2; }
# define UINT16ENCODE(p, i) { *((uint16 *)(p)) = (uint16)(i); (p)+=2; }
# define INT32ENCODE(p, i) { *((int32 *)(p)) = (int32)(i); (p)+=4; }
# define UINT32ENCODE(p, i) { *((uint32 *)(p)) = (uint32)(i); (p)+=4; }
#ifdef HDF5_HAVE_NATIVE_INT64
# define INT64ENCODE(p, i) { *((int64 *)(p)) = (int64)(i); (p)+=8; }
# define UINT64ENCODE(p, i) { *((uint64 *)(p)) = (uint64)(i); (p)+=8; }
#else /* HDF5_HAVE_NATIVE_INT64 */
#error "Define int64 on platforms which don't support it"
#endif /* HDF5_HAVE_NATIVE_INT64 */
# define INT16DECODE(p, i) { (i) = (int16)(*(const int16 *)(p)); (p)+=2; }
# define UINT16DECODE(p, i) { (i) = (uint16)(*(const uint16 *)(p)); (p)+=2; }
# define INT32DECODE(p, i) { (i) = (int32)(*(const int32 *)(p)); (p)+=4; }
# define UINT32DECODE(p, i) { (i) = (uint32)(*(const uint32 *)(p)); (p)+=4; }
#ifdef HDF5_HAVE_NATIVE_INT64
# define INT64DECODE(p, i) { (i) = (int64)(*(const int64 *)(p)); (p)+=8; }
# define UINT64DECODE(p, i) { (i) = (uint64)(*(const uint64 *)(p)); (p)+=8; }
#else /* HDF5_HAVE_NATIVE_INT64 */
#error "Define int64 on platforms which don't support it"
#endif /* HDF5_HAVE_NATIVE_INT64 */
#endif
# define NBYTEENCODE(d, s, n) { HDmemcpy(d,s,n); p+=n }
/* Note! the NBYTEDECODE macro is backwards from the memcpy() routine, */
/* in the spirit of the other DECODE macros */
# define NBYTEDECODE(s, d, n) { HDmemcpy(d,s,n); p+=n }
#endif /* HDF5I_H */
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