p7zip/C/BwtSort.h
2017-10-11 12:35:36 +02:00

27 lines
628 B
C

/* BwtSort.h -- BWT block sorting
2013-01-18 : Igor Pavlov : Public domain */
#ifndef __BWT_SORT_H
#define __BWT_SORT_H
#include "7zTypes.h"
EXTERN_C_BEGIN
/* use BLOCK_SORT_EXTERNAL_FLAGS if blockSize can be > 1M */
/* #define BLOCK_SORT_EXTERNAL_FLAGS */
#ifdef BLOCK_SORT_EXTERNAL_FLAGS
#define BLOCK_SORT_EXTERNAL_SIZE(blockSize) ((((blockSize) + 31) >> 5))
#else
#define BLOCK_SORT_EXTERNAL_SIZE(blockSize) 0
#endif
#define BLOCK_SORT_BUF_SIZE(blockSize) ((blockSize) * 2 + BLOCK_SORT_EXTERNAL_SIZE(blockSize) + (1 << 16))
UInt32 BlockSort(UInt32 *indices, const Byte *data, UInt32 blockSize);
EXTERN_C_END
#endif