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TurboPFor: TurboPFor decode

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2019-07-15 10:32:55 +02:00
parent 65b69bc029
commit 83f641aa07
1 changed files with 8 additions and 9 deletions
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17
vp4d.c Executable file → Normal file
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@ -1,5 +1,5 @@
/**
Copyright (C) powturbo 2013-2018
Copyright (C) powturbo 2013-2019
GPL v2 License
This program is free software; you can redistribute it and/or modify
@ -38,8 +38,7 @@
#define P4DELTA(a)
#define P4DELTA_(a)
#ifdef __SSSE3__
#include <tmmintrin.h>
#if defined(__SSSE3__) || defined(__ARM_NEON)
extern char _shuffle_32[16][16]; // defined in bitunpack.c
extern char _shuffle_16[256][16];
#endif
@ -128,7 +127,7 @@ extern char _shuffle_16[256][16];
#undef USIZE
#undef DELTA
#if defined(__SSSE3__) && defined(SSE2_ON)
#if (__SSSE3__ != 0 || __ARM_NEON != 0) && defined(SSE2_ON)
#define VSIZE 128
#define P4DELTA(a)
@ -310,7 +309,7 @@ ALWAYS_INLINE unsigned char *TEMPLATE2(_P4DEC, USIZE)(unsigned char *__restrict
} //out += 64;
}
}
#elif defined(__SSSE3__) && USIZE == 32
#elif (__SSSE3__ != 0 || __ARM_NEON != 0) && USIZE == 32
{ uint_t *_op=out,*op,*pex = ex;
for(i = 0; i < p4dn; i++) {
for(op=_op; bb[i]; bb[i] >>= 4,op+=4) { const unsigned m = bb[i]&0xf;
@ -318,7 +317,7 @@ ALWAYS_INLINE unsigned char *TEMPLATE2(_P4DEC, USIZE)(unsigned char *__restrict
} _op+=64;
}
}
#elif defined(__SSSE3__) && USIZE == 16
#elif (__SSSE3__ != 0 || __ARM_NEON != 0) && USIZE == 16
{ uint_t *_op=out,*op,*pex = ex;
for(i = 0; i < p4dn; i++) {
for(op=_op; bb[i]; bb[i] >>= 8,op+=8) { const unsigned char m = bb[i];
@ -374,7 +373,7 @@ unsigned char *TEMPLATE2(P4DEC, USIZE)(unsigned char *__restrict in, unsigned n,
unsigned b, bx, i;
if(!n) return in;
b = *in++;
if((b & 0xc0) == 0xc0) {
if((b & 0xc0) == 0xc0) { // all items are equal
b &= 0x3f;
#if USIZE == 64
b = b == 63?64:b;
@ -385,13 +384,13 @@ unsigned char *TEMPLATE2(P4DEC, USIZE)(unsigned char *__restrict in, unsigned n,
TEMPLATE2(BITUNDD, USIZE)(out, n, start);
#endif
return in+(b+7)/8;
} else if(likely(!(b & 0x40))) {
} else if(likely(!(b & 0x40))) { // PFOR
if(b & 0x80)
bx = *in++;
return TEMPLATE2(_P4DEC, USIZE)(in, n, out P4DELTA(start), b, bx);
}
#if USIZE > 8
else {
else { // Variable byte
uint_t ex[P4D_MAX+64],*pex=ex;
b &= 0x3f;
bx = *in++; /*if(b && *in++ == 0x80) { uint_t u = TEMPLATE2(ctou, USIZE)(in); if(b < USIZE) u = TEMPLATE2(BZHI, USIZE)(u,b); int i; for(i = 0; i < n; i++) out[i] = u; in+=(b+7)/8; } else*/