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TurboPFor encode

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powturbo
2015-06-11 20:42:41 +02:00
parent 16777e3dfd
commit 8031c27bd5
1 changed files with 12 additions and 12 deletions
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24
vp4dc.c
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@ -23,14 +23,13 @@
**/
// vp4dd.c - "Integer Compression" Turbo PforDelta
#ifndef USIZE
#include <string.h>
#include <stdint.h>
#include "conf.h"
#include "bitpack.h"
#include "vp4dc.h"
#define PAD8(__x) ( (((__x)+8-1)/8) )
#include <stdint.h>
//------------------------------------------
#define P4DSIZE 128 //64 //
@ -47,6 +46,10 @@
#include __FILE__
#undef USIZE
#define USIZE 64
#include __FILE__
#undef USIZE
#undef BITPACK
#undef P4DENC
#undef P4DE
@ -60,9 +63,6 @@
#include __FILE__
#undef USIZE
/*#define USIZE 16
#include __FILE__*/
#else
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wparentheses"
@ -72,7 +72,7 @@
#ifdef P4D
unsigned TEMPLATE2(P4D, USIZE)(uint_t *__restrict in, unsigned n, unsigned *pbx) {
uint_t *ip; int i,ml,l; unsigned x, bx, b=0, cnt[USIZE+1] = {0};
uint_t *ip,b=0; int i,ml,l; unsigned x, bx, cnt[USIZE+1] = {0};
for(ip = in; ip != in+(n&~3); ) {
++cnt[TEMPLATE2(bsr, USIZE)(*ip)]; b |= *ip++;
@ -85,7 +85,7 @@ unsigned TEMPLATE2(P4D, USIZE)(uint_t *__restrict in, unsigned n, unsigned *pbx)
bx = b; ml = PAD8(n*b)+1-2-P4DN*8; x = cnt[b];
for(i = b-1; i >= 0; --i) {
int l = PAD8(n*i) + PAD8(x*(bx-i)); x += cnt[i];
l = PAD8(n*i) + PAD8(x*(bx-i)); x += cnt[i];
if(unlikely(l < ml)) b = i, ml = l;
}
*pbx = bx - b;
@ -93,10 +93,10 @@ unsigned TEMPLATE2(P4D, USIZE)(uint_t *__restrict in, unsigned n, unsigned *pbx)
}
#endif
unsigned char *TEMPLATE2(P4DE, USIZE)(uint_t *__restrict in, unsigned n, unsigned char *__restrict out, unsigned b, unsigned bx) { unsigned i, xn, msk = (1ull<<b)-1, c;
if(!bx) return TEMPLATE2(BITPACK, USIZE)(in, n, out, b);
uint_t _in[P4DSIZE], inx[P4DSIZE*2];
unsigned char *TEMPLATE2(P4DE, USIZE)(uint_t *__restrict in, unsigned n, unsigned char *__restrict out, unsigned b, unsigned bx) { unsigned i, xn, c;
if(!bx || b==USIZE) return TEMPLATE2(BITPACK, USIZE)(in, n, out, b);
uint_t msk = (1ull << b)-1,_in[P4DSIZE], inx[P4DSIZE*2];
unsigned long long xmap[P4DN];
unsigned miss[P4DSIZE];
#if P4DN == 2