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addWeighted

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This commit is contained in:
Ilya Lavrenov 2014-12-29 20:32:11 +03:00
parent 1bdd86edeb
commit f6b3bc01e5
1 changed files with 92 additions and 1 deletions
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93
modules/core/src/arithm.cpp
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@ -2772,7 +2772,98 @@ struct AddWeighted_SIMD
}
};
#if CV_NEON
#if CV_SSE2
template <>
struct AddWeighted_SIMD<schar, float>
{
AddWeighted_SIMD()
{
haveSSE2 = checkHardwareSupport(CV_CPU_SSE2);
}
int operator() (const schar * src1, const schar * src2, schar * dst, int width, float alpha, float beta, float gamma) const
{
int x = 0;
if (!haveSSE2)
return x;
__m128i v_zero = _mm_setzero_si128();
__m128 v_alpha = _mm_set1_ps(alpha), v_beta = _mm_set1_ps(beta),
v_gamma = _mm_set1_ps(gamma);
for( ; x <= width - 8; x += 8 )
{
__m128i v_src1 = _mm_loadl_epi64((const __m128i *)(src1 + x));
__m128i v_src2 = _mm_loadl_epi64((const __m128i *)(src2 + x));
__m128i v_src1_p = _mm_srai_epi16(_mm_unpacklo_epi8(v_zero, v_src1), 8);
__m128i v_src2_p = _mm_srai_epi16(_mm_unpacklo_epi8(v_zero, v_src2), 8);
__m128 v_dstf0 = _mm_mul_ps(_mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpacklo_epi16(v_zero, v_src1_p), 16)), v_alpha);
v_dstf0 = _mm_add_ps(_mm_add_ps(v_dstf0, v_gamma),
_mm_mul_ps(_mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpacklo_epi16(v_zero, v_src2_p), 16)), v_beta));
__m128 v_dstf1 = _mm_mul_ps(_mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpackhi_epi16(v_zero, v_src1_p), 16)), v_alpha);
v_dstf1 = _mm_add_ps(_mm_add_ps(v_dstf1, v_gamma),
_mm_mul_ps(_mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpackhi_epi16(v_zero, v_src2_p), 16)), v_beta));
__m128i v_dst16 = _mm_packs_epi32(_mm_cvtps_epi32(v_dstf0),
_mm_cvtps_epi32(v_dstf1));
_mm_storel_epi64((__m128i *)(dst + x), _mm_packs_epi16(v_dst16, v_zero));
}
return x;
}
bool haveSSE2;
};
template <>
struct AddWeighted_SIMD<short, float>
{
AddWeighted_SIMD()
{
haveSSE2 = checkHardwareSupport(CV_CPU_SSE2);
}
int operator() (const short * src1, const short * src2, short * dst, int width, float alpha, float beta, float gamma) const
{
int x = 0;
if (!haveSSE2)
return x;
__m128i v_zero = _mm_setzero_si128();
__m128 v_alpha = _mm_set1_ps(alpha), v_beta = _mm_set1_ps(beta),
v_gamma = _mm_set1_ps(gamma);
for( ; x <= width - 8; x += 8 )
{
__m128i v_src1 = _mm_loadu_si128((const __m128i *)(src1 + x));
__m128i v_src2 = _mm_loadu_si128((const __m128i *)(src2 + x));
__m128 v_dstf0 = _mm_mul_ps(_mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpacklo_epi16(v_zero, v_src1), 16)), v_alpha);
v_dstf0 = _mm_add_ps(_mm_add_ps(v_dstf0, v_gamma),
_mm_mul_ps(_mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpacklo_epi16(v_zero, v_src2), 16)), v_beta));
__m128 v_dstf1 = _mm_mul_ps(_mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpackhi_epi16(v_zero, v_src1), 16)), v_alpha);
v_dstf1 = _mm_add_ps(_mm_add_ps(v_dstf1, v_gamma),
_mm_mul_ps(_mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpackhi_epi16(v_zero, v_src2), 16)), v_beta));
_mm_storeu_si128((__m128i *)(dst + x), _mm_packs_epi32(_mm_cvtps_epi32(v_dstf0),
_mm_cvtps_epi32(v_dstf1)));
}
return x;
}
bool haveSSE2;
};
#elif CV_NEON
template <>
struct AddWeighted_SIMD<schar, float>