hcq/TurboPFor-Integer-Compression
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TurboPFor: TurboPFor decode

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2017-01-05 12:51:37 +01:00
parent 255d44aa4f
commit 40c848c82c
1 changed files with 27 additions and 56 deletions
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77
vp4d.c
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@ -29,10 +29,9 @@
#include "bitunpack.h"
#include "bitutil.h"
#include "vp4d.h"
#include "vint.h"
#include "vsimple.h"
#include "vint.h" //#include "vsimple.h"
#define PAD8(__x) ( (((__x)+8-1)/8) )
#define VSIZEX 256
#if 0 //defined(__AVX_2__)
#include "avx2.h"
@ -60,18 +59,17 @@ static ALIGNED(char, shuffles[16][16], 16) = {
};
#endif
#define USIZE 64
#define P4DELTA(a)
#define _P4DEC _p4dec
#define P4DEC p4dec
#define BITUNPACK bitunpack // unpack only
#define BITUNPACKD bitunpack // integrated unpack
#define _BITUNPACKD bitunpack // integrated
#define P4START
#define _BITUNPACKD bitunpack // integrated pfor
#define USIZE 64
#include __FILE__
#define P4DECX
#define P4DECX // direct access
#define USIZE 16
#include __FILE__
@ -79,10 +77,8 @@ static ALIGNED(char, shuffles[16][16], 16) = {
#define USIZE 32
#include __FILE__
#undef P4DECX
#undef P4DECX
#define P4START start,
#define P4START_T
#define P4DELTA(a) ,a
#define _P4DEC _p4ddec //delta0
#define P4DEC p4ddec
#define BITUNPACKD bitdunpack
@ -101,10 +97,10 @@ static ALIGNED(char, shuffles[16][16], 16) = {
#undef P4DEC
#undef BITUNPACK
#undef BITUNDD
#undef P4DELTA
// SIMD -------------
#define P4START
#undef P4START_T
#define P4DELTA(a)
#define VSIZE 128
#define _P4DEC _p4dec128v
#define P4DEC p4dec128v
@ -113,8 +109,7 @@ static ALIGNED(char, shuffles[16][16], 16) = {
#define _BITUNPACKD _bitunpack128v
#include __FILE__
#define P4START start,
#define P4START_T
#define P4DELTA(a) ,a
#define _P4DEC _p4ddec128v
#define P4DEC p4ddec128v
#define BITUNPACKD bitdunpack128v
@ -129,10 +124,9 @@ static ALIGNED(char, shuffles[16][16], 16) = {
#define BITUNDD bitund1
#include __FILE__
#undef BITUNDD
#undef P4DELTA
#ifdef __AVX2__
#define P4START
#undef P4START_T
#define VSIZE 256
#define _P4DEC _p4dec256v
#define P4DEC p4dec256v
@ -141,8 +135,7 @@ static ALIGNED(char, shuffles[16][16], 16) = {
#define _BITUNPACKD _bitunpack256v
#include __FILE__
#define P4START start,
#define P4START_T
#define P4DELTA
#define _P4DEC _p4ddec256v
#define P4DEC p4ddec256v
#define BITUNPACKD bitdunpack256v
@ -159,22 +152,13 @@ static ALIGNED(char, shuffles[16][16], 16) = {
#undef BITUNDD
#endif
#undef USIZE
#else
#define uint_t TEMPLATE3(uint, USIZE, _t)
//#pragma GCC push_options
//#pragma GCC optimize ("unroll-loops")
#ifdef P4START_T
unsigned char *TEMPLATE2(_P4DEC, USIZE)(unsigned char *__restrict in, unsigned n, uint_t *__restrict out, uint_t start, unsigned b, unsigned bx ) {
#else
unsigned char *TEMPLATE2(_P4DEC, USIZE)(unsigned char *__restrict in, unsigned n, uint_t *__restrict out, unsigned b, unsigned bx ) {
#endif
uint_t ex[VSIZEX+8];
if(!(b & 1)) return TEMPLATE2(BITUNPACKD, USIZE)(in,
#ifndef VSIZE
n,
#endif
out, P4START b>>1);
unsigned char *TEMPLATE2(_P4DEC, USIZE)(unsigned char *__restrict in, unsigned n, uint_t *__restrict out P4DELTA(uint_t start), unsigned b, unsigned bx ) {
uint_t ex[P4D_MAX+8];
if(!(b & 1)) return TEMPLATE2(BITUNPACKD, USIZE)(in, n, out P4DELTA(start), b>>1);
b >>= 1;
#ifdef VSIZE
@ -184,17 +168,13 @@ unsigned char *TEMPLATE2(_P4DEC, USIZE)(unsigned char *__restrict in, unsigned n
#else
in = TEMPLATE2(bitunpack, USIZE)(in+32, popcnt64(ctou64(in)) + popcnt64(ctou64(in+8)) + popcnt64(ctou64(in+16)) + popcnt64(ctou64(in+24)), ex, bx);
#endif
return TEMPLATE2(_BITUNPACKD, USIZE)(in, out, P4START b, ex, pb);
return TEMPLATE2(_BITUNPACKD, USIZE)(in, n, out P4DELTA(start), b, ex, pb);
#else
unsigned long long bb[VSIZEX/64]; unsigned num=0,i,p4dn = (n+63)/64;
unsigned long long bb[P4D_MAX/64]; unsigned num=0,i,p4dn = (n+63)/64;
for(i = 0; i < n/64; i++) { bb[i] = ctou64(in+i*8); num += popcnt64(bb[i]); }
if(n & 0x3f) { bb[i] = ctou64(in+i*8) & ((1ull<<(n&0x3f))-1); num += popcnt64(bb[i]); }
in = TEMPLATE2(bitunpack, USIZE)(in+PAD8(n), num, ex, bx);
in = TEMPLATE2(bitunpack, USIZE)(in,
#ifndef VSIZE
n,
#endif
out, b);
in = TEMPLATE2(bitunpack, USIZE)(in, n, out, b);
#if 0 //defined(AVX_2__)
uint_t *op,*pex = ex;
for(i = 0; i < p4dn; i++) {
@ -222,27 +202,18 @@ unsigned char *TEMPLATE2(_P4DEC, USIZE)(unsigned char *__restrict in, unsigned n
#endif
}
#ifdef P4START_T
unsigned char *TEMPLATE2(P4DEC, USIZE)(unsigned char *__restrict in, unsigned n, uint_t *__restrict out, uint_t start) {
#else
unsigned char *TEMPLATE2(P4DEC, USIZE)(unsigned char *__restrict in, unsigned n, uint_t *__restrict out) {
#endif
unsigned char *TEMPLATE2(P4DEC, USIZE)(unsigned char *__restrict in, unsigned n, uint_t *__restrict out P4DELTA(uint_t start) ) {
unsigned b = *in++,bx,i;
if(likely(!(b & 0x80))) {
if(b & 1)
bx = *in++;
return TEMPLATE2(_P4DEC, USIZE)(in, n, out, P4START b, bx );
return TEMPLATE2(_P4DEC, USIZE)(in, n, out P4DELTA(start), b, bx );
} else {
uint_t ex[VSIZEX+8];
uint_t ex[P4D_MAX+8];
b = (b & 0x7f)>>1;
bx = *in++;
in = TEMPLATE2(BITUNPACK, USIZE)(in,
#ifndef VSIZE
n,
#endif
out, b);
in = TEMPLATE2(BITUNPACK, USIZE)(in, n, out, b);
in = TEMPLATE2(vbdec, USIZE)(in, bx, ex);
for(i = 0; i != (bx & ~3); i += 4) {
out[in[i ]] |= ex[i ] << b;