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TurboPFor: TurboPFor encode

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2017-01-05 17:19:36 +01:00
parent 75025f4462
commit d82eaeba7e
1 changed files with 12 additions and 7 deletions
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19
vp4c.c
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@ -22,7 +22,7 @@
- email : powturbo [_AT_] gmail [_DOT_] com - email : powturbo [_AT_] gmail [_DOT_] com
**/ **/
// "Integer Compression" Turbo PFor/PforDelta // "Integer Compression" Turbo PFor/PforDelta
#ifndef USIZE #ifndef USIZE
#include <stdint.h> #include <stdint.h>
#include "conf.h" #include "conf.h"
@ -66,7 +66,9 @@
#undef _P4BITS #undef _P4BITS
#ifndef NSIMD
#define EXCEP 1 // #define EXCEP 1 //
#ifdef __SSE2__
//-- SIMD: Vertical bitpacking //-- SIMD: Vertical bitpacking
#define VSIZE 128 #define VSIZE 128
#define _P4ENC _p4enc128v #define _P4ENC _p4enc128v
@ -78,8 +80,9 @@
#undef _P4ENC #undef _P4ENC
#undef P4ENC #undef P4ENC
#undef BITPACK #undef BITPACK
#endif
#ifdef __AVX2__ #ifdef __AVX2__
#define VSIZE 256 #define VSIZE 256
#define _P4ENC _p4enc256v #define _P4ENC _p4enc256v
#define P4ENC p4enc256v #define P4ENC p4enc256v
@ -89,17 +92,19 @@
#undef _P4ENC #undef _P4ENC
#undef P4ENC #undef P4ENC
#undef BITPACK #undef BITPACK
#endif #endif
#endif
#undef USIZE #undef USIZE
#else
#else
#pragma clang diagnostic push #pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wparentheses" #pragma clang diagnostic ignored "-Wparentheses"
#define uint_t TEMPLATE3(uint, USIZE, _t) #define uint_t TEMPLATE3(uint, USIZE, _t)
#define VSC(a) #define VSC(a)
#ifdef _P4BITS #ifdef _P4BITS
unsigned TEMPLATE2(_P4BITS, USIZE)(uint_t *__restrict in, unsigned n, unsigned *pbx) { unsigned TEMPLATE2(_P4BITS, USIZE)(uint_t *__restrict in, unsigned n, unsigned *pbx) {
uint_t *ip; int b=0,r; int i,ml,l; uint_t *ip; int b=0,r; int i,ml,l;
unsigned x, bx, cnt[USIZE+1] = {0}, _vb[USIZE*2+5] = {0}, *vb=&_vb[USIZE],fx=0, b64=(n+7)/8; unsigned x, bx, cnt[USIZE+1] = {0}, _vb[USIZE*2+5] = {0}, *vb=&_vb[USIZE],fx=0, b64=(n+7)/8;
@ -152,7 +157,7 @@ unsigned TEMPLATE2(_P4BITS, USIZE)(uint_t *__restrict in, unsigned n, unsigned *
#endif #endif
return b; return b;
} }
#endif #endif
unsigned char *TEMPLATE2(_P4ENC, USIZE)(uint_t *__restrict in, unsigned n, unsigned char *__restrict out, unsigned b, unsigned bx) { unsigned char *TEMPLATE2(_P4ENC, USIZE)(uint_t *__restrict in, unsigned n, unsigned char *__restrict out, unsigned b, unsigned bx) {
if(!bx) if(!bx)
@ -206,7 +211,7 @@ unsigned char *TEMPLATE2(P4ENC, USIZE)(uint_t *__restrict in, unsigned n, unsign
} }
}*/ }*/
#pragma clang diagnostic pop #pragma clang diagnostic pop
#endif #endif
/* /*
111 : 32 bits = bitpack b=32 if bits=0x1f EOB 111 : 32 bits = bitpack b=32 if bits=0x1f EOB
000 : bitpack = bitpack no exp b=0..5 000 : bitpack = bitpack no exp b=0..5