-/*!@file
- \brief HENGE Memory Definition in common with STON Asset Packages
- \details C Aligned memory structures used to define datatypes in the STON
- Asset Package format, used for reading asset packages as runtime
- memory.
- \author Ken Grimes
- \date Feb 2017
- ----------------------------------------------------------------------------*/
-#ifndef _HENGE_H_
-#define _HENGE_H_
-
-/* Henge Generic Hashtable
-
- Hashtables are stored as dynamically sized two dimensional arrays, whose
- columns are provided, and whose rows, and sizes, are derived.
-
- ht_size = header.ht_columns << header.ht_2pow;
- ht_rows = 0x1 << header.ht_2pow;
-
- All generic hashtables in henge must have a power-of-two number of rows. An
- ht_columns value that is also a power-of-two will result in a power-of-two
- sized memory imprint for the structure, making it easy to page align.
-
- Elements in the columns may be of any arbitrary size.
-
- typedef uint32_t my_ht_type;
- ht_bytes = ht_size * sizeof(my_ht_type);
-*/
-struct hng_ht_header_t
-{ uint16_t ht_columns;
- uint8_t ht_2pow, ht_flags;
-};
-
-#define hng_ht_size(_HEADER) ((_HEADER)->ht_columns << (_HEADER)->ht_2pow)
-#define hng_ht_rows(_HEADER) (0x1 << (_HEADER)->ht_2pow)
-#define hng_ht_cols(_HEADER) (_HEADER->ht_columns)
-#define hng_ht_start(_HEADER) (_HEADER + sizeof(*_HEADER))
-#define hng_ht_array(_HEADER,_UNIT) ((_UNIT*)hng_ht_start(_HEADER))
-#define hng_ht_bytes(_HEADER,_UNIT) (hng_ht_size(_HEADER) * sizeof(_UNIT))
-#define hng_ht_2bytes(_HEADER,_UNIT2POW) (hng_ht_size(_HEADER) << _UNIT2POW)
-
-#endif //_HENGE_H_