hcq/TurboPFor-Integer-Compression
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TurboPFor: TurboPFor encode

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2017-01-29 19:49:21 +01:00
parent 32eb785a95
commit e01167f35d
1 changed files with 32 additions and 2 deletions
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34
vp4c.c
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@ -42,6 +42,7 @@
#define P4ENC p4enc
#define P4NENC p4nenc
#define BITPACK bitpack
#define BITDELTA bitdenc
#define USIZE 8
#include "vp4c.c"
@ -94,6 +95,26 @@
#define USIZE 64
#include "vp4c.c"
#define BITDELTA bitzenc
#define P4DENC p4zenc
#define P4NENC p4nzenc
#define P4NENCS p4zenc
#define EXCEP 0
#define USIZE 8
#include "vp4c.c"
#define EXCEP 1
#define USIZE 16
#include "vp4c.c"
#define USIZE 32
#include "vp4c.c"
#define USIZE 64
#include "vp4c.c"
#define BITDELTA bitdenc
#undef P4DELTA
#define EXCEP 0 // Direct access
@ -144,6 +165,15 @@
#define P4NENC p4nd1enc128v
#define P4NENCS p4d1enc
#include "vp4c.c"
#define P4DELTA 0
#define BITDELTA bitzenc
#define P4DENC p4zenc128v
#define P4NENC p4nzenc128v
#define P4NENCS p4zenc
#include "vp4c.c"
#define BITDELTA bitdenc
#undef P4DELTA
#undef _P4ENC
@ -312,7 +342,7 @@ size_t TEMPLATE2(P4NENC, USIZE)(uint_t *__restrict in, size_t n, unsigned char *
#else
ALWAYS_INLINE unsigned char *TEMPLATE2(P4DENC, USIZE)(uint_t *__restrict in, unsigned n, unsigned char *__restrict out, uint_t start) { if(!n) return out;
uint_t _in[P4D_MAX+8];
TEMPLATE2(bitdelta, USIZE)(in, n, _in, start, P4DELTA);
TEMPLATE2(BITDELTA, USIZE)(in, n, _in, start, P4DELTA);
return TEMPLATE2(P4ENC, USIZE)(_in, n, out);
}
@ -326,7 +356,7 @@ size_t TEMPLATE2(P4NENC, USIZE)(uint_t *__restrict in, size_t n, unsigned char *
TEMPLATE2(vbxput, USIZE)(op, start);
for(ip = in, --n; ip != in+(n&~(CSIZE-1)); ip += CSIZE) { __builtin_prefetch(ip+512);
uint_t _in[P4D_MAX+8];
TEMPLATE2(bitdelta, USIZE)(ip, CSIZE, _in, start, P4DELTA);
TEMPLATE2(BITDELTA, USIZE)(ip, CSIZE, _in, start, P4DELTA);
unsigned bx, b = TEMPLATE2(_p4bits, USIZE)(_in, CSIZE, &bx);
#if EXCEP > 0
if(bx <= USIZE) { P4SAVE(op, b, bx); } else *op++= 0x80|b<<1;