diff options
Diffstat (limited to 'src/hdf5meta.h')
| -rw-r--r-- | src/hdf5meta.h | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/src/hdf5meta.h b/src/hdf5meta.h new file mode 100644 index 0000000..025b4e6 --- /dev/null +++ b/src/hdf5meta.h @@ -0,0 +1,145 @@ +/**************************************************************************** + * 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)(*(int16 *)(p)); (p)+=2; } +# define UINT16DECODE(p, i) { (i) = (uint16)(*(uint16 *)(p)); (p)+=2; } +# define INT32DECODE(p, i) { (i) = (int32)(*(int32 *)(p)); (p)+=4; } +# define UINT32DECODE(p, i) { (i) = (uint32)(*(uint32 *)(p)); (p)+=4; } +#ifdef HDF5_HAVE_NATIVE_INT64 +# define INT64DECODE(p, i) { (i) = (int64)(*(int64 *)(p)); (p)+=8; } +# define UINT64DECODE(p, i) { (i) = (uint64)(*(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 */ + |