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convert from f64

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This commit is contained in:
Ilya Lavrenov 2015-01-12 10:59:30 +03:00
parent 612b8ce2cb
commit 70933ea999
1 changed files with 153 additions and 1 deletions
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154
modules/core/src/convert.cpp
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@ -4394,7 +4394,159 @@ struct Cvt_SIMD
} }
}; };
#if CV_NEON #if CV_SSE2
// from double
template <>
struct Cvt_SIMD<double, uchar>
{
int operator() (const double * src, uchar * dst, int width) const
{
int x = 0;
for ( ; x <= width - 8; x += 8)
{
__m128 v_src0 = _mm_cvtpd_ps(_mm_loadu_pd(src + x));
__m128 v_src1 = _mm_cvtpd_ps(_mm_loadu_pd(src + x + 2));
__m128 v_src2 = _mm_cvtpd_ps(_mm_loadu_pd(src + x + 4));
__m128 v_src3 = _mm_cvtpd_ps(_mm_loadu_pd(src + x + 6));
v_src0 = _mm_movelh_ps(v_src0, v_src1);
v_src1 = _mm_movelh_ps(v_src2, v_src3);
__m128i v_dst = _mm_packs_epi32(_mm_cvtps_epi32(v_src0),
_mm_cvtps_epi32(v_src1));
_mm_storel_epi64((__m128i *)(dst + x), _mm_packus_epi16(v_dst, v_dst));
}
return x;
}
};
template <>
struct Cvt_SIMD<double, schar>
{
int operator() (const double * src, schar * dst, int width) const
{
int x = 0;
for ( ; x <= width - 8; x += 8)
{
__m128 v_src0 = _mm_cvtpd_ps(_mm_loadu_pd(src + x));
__m128 v_src1 = _mm_cvtpd_ps(_mm_loadu_pd(src + x + 2));
__m128 v_src2 = _mm_cvtpd_ps(_mm_loadu_pd(src + x + 4));
__m128 v_src3 = _mm_cvtpd_ps(_mm_loadu_pd(src + x + 6));
v_src0 = _mm_movelh_ps(v_src0, v_src1);
v_src1 = _mm_movelh_ps(v_src2, v_src3);
__m128i v_dst = _mm_packs_epi32(_mm_cvtps_epi32(v_src0),
_mm_cvtps_epi32(v_src1));
_mm_storel_epi64((__m128i *)(dst + x), _mm_packs_epi16(v_dst, v_dst));
}
return x;
}
};
#if CV_SSE4_1
template <>
struct Cvt_SIMD<double, ushort>
{
int operator() (const double * src, ushort * dst, int width) const
{
int x = 0;
for ( ; x <= width - 8; x += 8)
{
__m128 v_src0 = _mm_cvtpd_ps(_mm_loadu_pd(src + x));
__m128 v_src1 = _mm_cvtpd_ps(_mm_loadu_pd(src + x + 2));
__m128 v_src2 = _mm_cvtpd_ps(_mm_loadu_pd(src + x + 4));
__m128 v_src3 = _mm_cvtpd_ps(_mm_loadu_pd(src + x + 6));
v_src0 = _mm_movelh_ps(v_src0, v_src1);
v_src1 = _mm_movelh_ps(v_src2, v_src3);
__m128i v_dst = _mm_packus_epi32(_mm_cvtps_epi32(v_src0),
_mm_cvtps_epi32(v_src1));
_mm_storeu_si128((__m128i *)(dst + x), v_dst);
}
return x;
}
};
#endif // CV_SSE4_1
template <>
struct Cvt_SIMD<double, short>
{
int operator() (const double * src, short * dst, int width) const
{
int x = 0;
for ( ; x <= width - 8; x += 8)
{
__m128 v_src0 = _mm_cvtpd_ps(_mm_loadu_pd(src + x));
__m128 v_src1 = _mm_cvtpd_ps(_mm_loadu_pd(src + x + 2));
__m128 v_src2 = _mm_cvtpd_ps(_mm_loadu_pd(src + x + 4));
__m128 v_src3 = _mm_cvtpd_ps(_mm_loadu_pd(src + x + 6));
v_src0 = _mm_movelh_ps(v_src0, v_src1);
v_src1 = _mm_movelh_ps(v_src2, v_src3);
__m128i v_dst = _mm_packs_epi32(_mm_cvtps_epi32(v_src0),
_mm_cvtps_epi32(v_src1));
_mm_storeu_si128((__m128i *)(dst + x), v_dst);
}
return x;
}
};
template <>
struct Cvt_SIMD<double, int>
{
int operator() (const double * src, int * dst, int width) const
{
int x = 0;
for ( ; x <= width - 4; x += 4)
{
__m128 v_src0 = _mm_cvtpd_ps(_mm_loadu_pd(src + x));
__m128 v_src1 = _mm_cvtpd_ps(_mm_loadu_pd(src + x + 2));
v_src0 = _mm_movelh_ps(v_src0, v_src1);
_mm_storeu_si128((__m128i *)(dst + x), _mm_cvtps_epi32(v_src0));
}
return x;
}
};
template <>
struct Cvt_SIMD<double, float>
{
int operator() (const double * src, float * dst, int width) const
{
int x = 0;
for ( ; x <= width - 4; x += 4)
{
__m128 v_src0 = _mm_cvtpd_ps(_mm_loadu_pd(src + x));
__m128 v_src1 = _mm_cvtpd_ps(_mm_loadu_pd(src + x + 2));
_mm_storeu_ps(dst + x, _mm_movelh_ps(v_src0, v_src1));
}
return x;
}
};
#elif CV_NEON
// from uchar // from uchar