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BitPack SIMD

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powturbo
2015-07-08 16:13:15 +02:00
parent d2f4069310
commit 5ae7006501
1 changed files with 9 additions and 0 deletions
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9
bitpackv.c
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@ -56,6 +56,15 @@ unsigned char *bitd1packv32(unsigned *__restrict in, unsigned n, unsigned
__m128i v, sv = _mm_set1_epi32(start), cv = _mm_set1_epi32(1);
BITPACKV32(in, n, b, out, sv); return pout;
}
#undef VSTI
//------------------------------------------------------------------------------------------------------------------------------
#define VSTI(__ip, __i, __iv, __sv) v = _mm_loadu_si128(__ip++); __iv = DELTA128_32(v,__sv); __sv = v; __iv = ZIGZAG128_32(__iv)
unsigned char *bitzpackv32(unsigned *__restrict in, unsigned n, unsigned char *__restrict out, unsigned start, unsigned b) { unsigned char *pout = out+PAD8(n*b);
__m128i v, sv = _mm_set1_epi32(start), cv = _mm_set1_epi32(1);
BITPACKV32(in, n, b, out, sv); return pout;
}
#undef VSTI
#else
#include <strings.h>
#include <emmintrin.h>