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improve LKTrackerInvoker::operator()

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k-shinotsuka 2016-08-09 18:59:29 +09:00
parent b34272f8a2
commit 042b0a584d
1 changed files with 7 additions and 11 deletions
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18
modules/video/src/lkpyramid.cpp
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@ -567,18 +567,14 @@ void cv::detail::LKTrackerInvoker::operator()(const Range& range) const
diff0 = _mm_unpacklo_epi16(diff0, diff0); // It0 It0 It1 It1 ...
v00 = _mm_loadu_si128((const __m128i*)(dIptr)); // Ix0 Iy0 Ix1 Iy1 ...
v01 = _mm_loadu_si128((const __m128i*)(dIptr + 8));
v10 = _mm_mullo_epi16(v00, diff0);
v11 = _mm_mulhi_epi16(v00, diff0);
v00 = _mm_unpacklo_epi16(v10, v11);
v10 = _mm_unpackhi_epi16(v10, v11);
v10 = _mm_unpacklo_epi16(v00, v01);
v11 = _mm_unpackhi_epi16(v00, v01);
v00 = _mm_unpacklo_epi16(diff0, diff1);
v01 = _mm_unpackhi_epi16(diff0, diff1);
v00 = _mm_madd_epi16(v00, v10);
v11 = _mm_madd_epi16(v01, v11);
qb0 = _mm_add_ps(qb0, _mm_cvtepi32_ps(v00));
qb1 = _mm_add_ps(qb1, _mm_cvtepi32_ps(v10));
v10 = _mm_mullo_epi16(v01, diff1);
v11 = _mm_mulhi_epi16(v01, diff1);
v00 = _mm_unpacklo_epi16(v10, v11);
v10 = _mm_unpackhi_epi16(v10, v11);
qb0 = _mm_add_ps(qb0, _mm_cvtepi32_ps(v00));
qb1 = _mm_add_ps(qb1, _mm_cvtepi32_ps(v10));
qb1 = _mm_add_ps(qb1, _mm_cvtepi32_ps(v11));
}
#endif