daiduo/TurboPFor-Integer-Compression
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powturbo
2017-01-16 19:27:48 +01:00
committed by GitHub
parent d98fc553a5
commit 53dd5af49e
9 changed files with 223 additions and 181 deletions
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30
vp4c.c
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@ -290,18 +290,20 @@ unsigned char *TEMPLATE2(P4ENC, USIZE)(uint_t *__restrict in, unsigned n, unsign
return TEMPLATE2(_P4ENC, USIZE)(in, n, out, b, bx);
}
unsigned char *TEMPLATE2(P4NENC, USIZE)(uint_t *__restrict in, size_t n, unsigned char *__restrict out) {
size_t TEMPLATE2(P4NENC, USIZE)(uint_t *__restrict in, size_t n, unsigned char *__restrict out) {
if(!n) return 0;
unsigned char *op = out;
uint_t *ip;
for(ip = in; ip != in+(n&~(CSIZE-1)); ip += CSIZE) { __builtin_prefetch(ip+512);
unsigned bx, b = TEMPLATE2(_p4bits, USIZE)(ip, CSIZE, &bx);
#if EXCEP > 0
if(bx <= USIZE) { P4SAVE(out, b, bx); } else *out++= 0x80|b<<1;
if(bx <= USIZE) { P4SAVE(op, b, bx); } else *op++= 0x80|b<<1;
#else
P4SAVE(out, b, bx);
P4SAVE(op, b, bx);
#endif
out = TEMPLATE2(_P4ENC, USIZE)(ip, CSIZE, out, b, bx); // out = TEMPLATE2(P4ENC, USIZE)(ip, CSIZE, out);
op = TEMPLATE2(_P4ENC, USIZE)(ip, CSIZE, op, b, bx); // op = TEMPLATE2(P4ENC, USIZE)(ip, CSIZE, op);
}
return TEMPLATE2(p4enc, USIZE)(ip, n&(CSIZE-1), out);
return TEMPLATE2(p4enc, USIZE)(ip, n&(CSIZE-1), op) - out;
}
#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;
@ -310,21 +312,25 @@ ALWAYS_INLINE unsigned char *TEMPLATE2(P4DENC, USIZE)(uint_t *__restrict in, uns
return TEMPLATE2(P4ENC, USIZE)(_in, n, out);
}
unsigned char *TEMPLATE2(P4NENC, USIZE)(uint_t *__restrict in, size_t n, unsigned char *__restrict out, uint_t start) {
uint_t *ip;
for(ip = in; ip != in+(n&~(CSIZE-1)); ip += CSIZE) { __builtin_prefetch(ip+512);
size_t TEMPLATE2(P4NENC, USIZE)(uint_t *__restrict in, size_t n, unsigned char *__restrict out) {
if(!n) return out;
unsigned char *op = out;
uint_t *ip, start = *in++;
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);
unsigned bx, b = TEMPLATE2(_p4bits, USIZE)(_in, CSIZE, &bx);
#if EXCEP > 0
if(bx <= USIZE) { P4SAVE(out, b, bx); } else *out++= 0x80|b<<1;
if(bx <= USIZE) { P4SAVE(op, b, bx); } else *op++= 0x80|b<<1;
#else
P4SAVE(out, b, bx);
P4SAVE(op, b, bx);
#endif
out = TEMPLATE2(_P4ENC, USIZE)(_in, CSIZE, out, b, bx); // out = TEMPLATE2(P4ENC, USIZE)(_in, CSIZE, out);
op = TEMPLATE2(_P4ENC, USIZE)(_in, CSIZE, op, b, bx); // op = TEMPLATE2(P4ENC, USIZE)(_in, CSIZE, op);
start = ip[CSIZE-1];
}
return TEMPLATE2(P4NENCS, USIZE)(ip, n&(CSIZE-1), out, start);
return TEMPLATE2(P4NENCS, USIZE)(ip, n&(CSIZE-1), op, start) - out;
}
#endif