daiduo/TurboPFor-Integer-Compression
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TurboPFor decode: Scalar + Direct Access, SIMD

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powturbo
2015-06-14 20:12:07 +02:00
parent 97934d0fe3
commit cf56f58f91
1 changed files with 2 additions and 5 deletions
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7
vp4dd.h
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@ -26,17 +26,14 @@
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#define P4DSIZE 128 //64 //
#define P4DN (P4DSIZE/64)
//---------------- Bulk decompress of TurboPFor compressed integer array -------------------------------------------------------
// decompress a previously (with p4denc32) 32 bits packed array. Return value = end of packed buffer in
unsigned char *p4ddec32( unsigned char *__restrict in, unsigned n, unsigned *__restrict out);
unsigned char *p4ddec64( unsigned char *__restrict in, unsigned n, uint64_t *__restrict out);
unsigned char *p4dd32( unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned b, unsigned bx);
unsigned char *p4dd64( unsigned char *__restrict in, unsigned n, uint64_t *__restrict out, unsigned b, unsigned bx);
// decompress a previously (with p4denc32) 32 bits packed array. Return value = end of packed buffer in
unsigned char *p4ddecv32( unsigned char *__restrict in, unsigned n, unsigned *__restrict out);
@ -56,7 +53,7 @@ unsigned char *p4dddv32( unsigned char *__restrict in, unsigned n, unsigned *_
unsigned char *p4dd1d32( unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned start, unsigned b, unsigned bx);
unsigned char *p4dd1dv32( unsigned char *__restrict in, unsigned n, unsigned *__restrict out, unsigned start, unsigned b, unsigned bx);
//---------------- Direct Access functions to compressed TurboPFor array -------------------------------------------------------
//---------------- Direct Access functions to compressed (DELTAR + p4denc see icbench) TurboPFor array -------------------------------------------------------
#define P4D_PAD8(__x) ( (((__x)+8-1)/8) )
#define P4D_B(__x) (((__x) >> 1) & 0x3f)
#define P4D_XB(__x) (((__x) & 1)?((__x) >> 8):0)