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Merge pull request #7083 from tomoaki0705:fixAccumulateShortFloat

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This commit is contained in:
Maksim Shabunin 2016-08-11 09:00:38 +00:00
commit de0909e03c
1 changed files with 8 additions and 6 deletions
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14
modules/imgproc/src/accum.cpp
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@ -964,13 +964,15 @@ struct AccSqr_SIMD<ushort, float>
for ( ; x <= len - 8; x += 8)
{
__m128i v_src = _mm_loadu_si128((const __m128i*)(src + x));
__m128i v_src0 = _mm_unpacklo_epi16(v_src, v_0);
__m128i v_src1 = _mm_unpackhi_epi16(v_src, v_0);
v_src0 = _mm_mullo_epi16(v_src0, v_src0);
v_src1 = _mm_mullo_epi16(v_src1, v_src1);
__m128i v_int0 = _mm_unpacklo_epi16(v_src, v_0);
__m128i v_int1 = _mm_unpackhi_epi16(v_src, v_0);
__m128 v_src0 = _mm_cvtepi32_ps(v_int0);
__m128 v_src1 = _mm_cvtepi32_ps(v_int1);
v_src0 = _mm_mul_ps(v_src0, v_src0);
v_src1 = _mm_mul_ps(v_src1, v_src1);
_mm_storeu_ps(dst + x, _mm_add_ps(_mm_loadu_ps(dst + x), _mm_cvtepi32_ps(v_src0)));
_mm_storeu_ps(dst + x + 4, _mm_add_ps(_mm_loadu_ps(dst + x + 4), _mm_cvtepi32_ps(v_src1)));
_mm_storeu_ps(dst + x, _mm_add_ps(_mm_loadu_ps(dst + x), v_src0));
_mm_storeu_ps(dst + x + 4, _mm_add_ps(_mm_loadu_ps(dst + x + 4), v_src1));
}
}