daiduo/TurboPFor-Integer-Compression
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TurboPFor: TurboPFor decode

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powturbo
2021-11-13 19:01:33 +01:00
parent c6afc9625a
commit dace26700b
1 changed files with 3 additions and 3 deletions
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6
vp4d.c
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@ -266,7 +266,7 @@ extern char _shuffle_16[256][16];
ALWAYS_INLINE unsigned char *TEMPLATE2(_P4DEC, USIZE)(unsigned char *__restrict in, unsigned n, uint_t *__restrict out P4DELTA(uint_t start), unsigned b, unsigned bx ) {
if(!(b & 0x80)) {
#if USIZE == 64
b = (b == 63)?64:b; // 64 is encoded for bitsize 63 (permits using only 6 bits for b)
b = (b == 63)?64:b; // 63,64 are both encoded w. same bitsize 64 (permits using only 6 bits for b)
#endif
return TEMPLATE2(BITUNPACKD, USIZE)(in, n, out P4DELTA(start), b); // bitunpack only
}
@ -311,7 +311,7 @@ ALWAYS_INLINE unsigned char *TEMPLATE2(_P4DEC, USIZE)(unsigned char *__restrict
{ 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;
_mm_storeu_si128((__m128i *)op, _mm_add_epi32(_mm_loadu_si128((__m128i*)op), _mm_shuffle_epi8(mm_slli_epi32(_mm_loadu_si128((__m128i*)pex), b), _mm_load_si128((__m128i*)_shuffle_32[m]) ) )); pex += popcnt32(m);
_mm_storeu_si128((__m128i *)op, _mm_add_epi32(_mm_loadu_si128((__m128i*)op), _mm_shuffle_epi8(_mm_slli_epi32(_mm_loadu_si128((__m128i*)pex), b), _mm_load_si128((__m128i*)_shuffle_32[m]) ) )); pex += popcnt32(m);
} _op+=64;
}
}
@ -319,7 +319,7 @@ ALWAYS_INLINE unsigned char *TEMPLATE2(_P4DEC, USIZE)(unsigned char *__restrict
{ 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];
_mm_storeu_si128((__m128i *)op, _mm_add_epi16(_mm_loadu_si128((__m128i*)op), _mm_shuffle_epi8(mm_slli_epi16(_mm_loadu_si128((__m128i*)pex), b), _mm_load_si128((__m128i*)_shuffle_16[m]) ) )); pex += popcnt32(m);
_mm_storeu_si128((__m128i *)op, _mm_add_epi16(_mm_loadu_si128((__m128i*)op), _mm_shuffle_epi8(_mm_slli_epi16(_mm_loadu_si128((__m128i*)pex), b), _mm_load_si128((__m128i*)_shuffle_16[m]) ) )); pex += popcnt32(m);
} _op += 64;
}
}