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BitUtil: c/c++ header

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2018-01-12 19:32:21 +01:00
parent 63d4d1568a
commit 985e46ef20
1 changed files with 10 additions and 2 deletions
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12
bitutil.h
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@ -92,10 +92,14 @@ static inline uint64_t zigzagdec64(uint64_t x) { return x >> 1 ^
#ifdef __SSE2__
#include <emmintrin.h>
#define DELTA128x32(_v_, _sv_) _mm_sub_epi32(_v_, _mm_or_si128(_mm_srli_si128(_sv_, 12), _mm_slli_si128(_v_, 4)))
//#define DELTA128x16(_v_, _sv_) _mm_sub_epi16(_v_, _mm_or_si128(_mm_srli_si128(_sv_, 14), _mm_slli_si128(_v_, 2)))
#define DELTA128x16(_v_, _sv_) _mm_sub_epi16(_v_, _mm_alignr_epi8(_v_, _sv_, 14))
#define DELTA128x32(_v_, _sv_) _mm_sub_epi32(_v_, _mm_alignr_epi8(_v_, _sv_, 12))
//#define DELTA128x32(_v_, _sv_) _mm_sub_epi32(_v_, _mm_or_si128(_mm_srli_si128(_sv_, 12), _mm_slli_si128(_v_, 4)))
#ifdef __SSSE3__
#include <tmmintrin.h>
// SIMD Scan ( prefix sum )
#define SCAN128x16( _v_, _sv_) {\
_v_ = _mm_add_epi16(_v_, _mm_slli_si128(_v_, 2));\
@ -103,16 +107,20 @@ static inline uint64_t zigzagdec64(uint64_t x) { return x >> 1 ^
_sv_ = _mm_add_epi16(_mm_add_epi16(_v_, _mm_slli_si128(_v_, 8)), _mm_shuffle_epi8(_sv_, _mm_set_epi8(15,14,15,14,15,14,15,14,15,14,15,14,15,14,15,14)));\
}
#endif
#define SCAN128x32( _v_, _sv_) _v_ = _mm_add_epi32(_v_, _mm_slli_si128(_v_, 4)); _sv_ = _mm_add_epi32(_mm_shuffle_epi32(_sv_, _MM_SHUFFLE(3, 3, 3, 3)), _mm_add_epi32(_mm_slli_si128(_v_, 8), _v_) )
#define SCANI128x16(_v_, _sv_, _vi_) SCAN128x16(_v_, _sv_); _sv_ = _mm_add_epi16(_sv_, _vi_)
#define SCANI128x32(_v_, _sv_, _vi_) SCAN128x32(_v_, _sv_); _sv_ = _mm_add_epi32(_sv_, _vi_)
// Zigzad encoding
#define ZIGZAG128x16(_v_) _mm_xor_si128(_mm_slli_epi16(_v_,1), _mm_srai_epi16(_v_,15))
#define ZIGZAG128x32(_v_) _mm_xor_si128(_mm_slli_epi32(_v_,1), _mm_srai_epi32(_v_,31))
#define UNZIGZAG128x16(_v_) _mm_xor_si128(_mm_srli_epi16(_v_,1), _mm_srai_epi16(_mm_slli_epi16(_v_,15),15) )
//#define UNZIGZAG128x16(_v_) _mm_xor_si128(_mm_srli_epi16(_v_,1), _mm_sub_epi32(cz, _mm_and_si128(iv,c1)) )
#define UNZIGZAG128x32(_v_) _mm_xor_si128(_mm_srli_epi32(_v_,1), _mm_srai_epi32(_mm_slli_epi32(_v_,31),31) ) //_mm_sub_epi32(cz, _mm_and_si128(iv,c1))
// SIMD Horizontal OR
#define HOR128x16(_v_,_b_) _v_ = _mm_or_si128(_v_, _mm_srli_si128(_v_, 8)); _v_ = _mm_or_si128(_v_, _mm_srli_si128(_v_, 6)); _v_ = _mm_or_si128(_v_, _mm_srli_si128(_v_, 4)); _v_ = _mm_or_si128(_v_, _mm_srli_si128(_v_, 2)); _b_ = (unsigned short)_mm_cvtsi128_si32(_v_)
#define HOR128x32(_v_,_b_) _v_ = _mm_or_si128(_v_, _mm_srli_si128(_v_, 8)); _v_ = _mm_or_si128(_v_, _mm_srli_si128(_v_, 4)); _b_ = (unsigned)_mm_cvtsi128_si32(_v_)
#endif