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Merge pull request #7384 from K-Shinotsuka:issue24

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This commit is contained in:
Vadim Pisarevsky 2016-10-04 12:06:37 +00:00
commit 0ce3686a37
1 changed files with 28 additions and 0 deletions
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28
modules/imgproc/src/color.cpp
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@ -6001,6 +6001,7 @@ struct Luv2RGB_b
#elif CV_SSE2
v_scale = _mm_set1_ps(255.f);
v_zero = _mm_setzero_si128();
v_alpha = _mm_set1_ps(ColorChannel<uchar>::max());
haveSIMD = checkHardwareSupport(CV_CPU_SSE2);
#endif
}
@ -6163,6 +6164,32 @@ struct Luv2RGB_b
if (jr)
dst -= jr, j -= jr;
}
else if (dcn == 4 && haveSIMD)
{
for ( ; j <= (dn * 3 - 12); j += 12, dst += 16)
{
__m128 v_buf0 = _mm_mul_ps(_mm_load_ps(buf + j), v_scale);
__m128 v_buf1 = _mm_mul_ps(_mm_load_ps(buf + j + 4), v_scale);
__m128 v_buf2 = _mm_mul_ps(_mm_load_ps(buf + j + 8), v_scale);
__m128 v_ba0 = _mm_unpackhi_ps(v_buf0, v_alpha);
__m128 v_ba1 = _mm_unpacklo_ps(v_buf2, v_alpha);
__m128i v_src0 = _mm_cvtps_epi32(_mm_shuffle_ps(v_buf0, v_ba0, 0x44));
__m128i v_src1 = _mm_shuffle_epi32(_mm_cvtps_epi32(_mm_shuffle_ps(v_ba0, v_buf1, 0x4e)), 0x78);
__m128i v_src2 = _mm_cvtps_epi32(_mm_shuffle_ps(v_buf1, v_ba1, 0x4e));
__m128i v_src3 = _mm_shuffle_epi32(_mm_cvtps_epi32(_mm_shuffle_ps(v_ba1, v_buf2, 0xee)), 0x78);
__m128i v_dst0 = _mm_packs_epi32(v_src0, v_src1);
__m128i v_dst1 = _mm_packs_epi32(v_src2, v_src3);
_mm_storeu_si128((__m128i *)dst, _mm_packus_epi16(v_dst0, v_dst1));
}
int jr = j % 3;
if (jr)
dst -= jr, j -= jr;
}
#endif
for( ; j < dn*3; j += 3, dst += dcn )
@ -6184,6 +6211,7 @@ struct Luv2RGB_b
uint8x8_t v_alpha;
#elif CV_SSE2
__m128 v_scale;
__m128 v_alpha;
__m128i v_zero;
bool haveSIMD;
#endif