opencv/modules/core/src/convert.sse4_1.cpp
2018-02-12 15:17:19 +03:00

204 lines
6.8 KiB
C++

// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html
#include "precomp.hpp"
#include "convert.hpp"
namespace cv
{
namespace opt_SSE4_1
{
int cvtScale_SIMD_u8u16f32_SSE41(const uchar * src, ushort * dst, int width, float scale, float shift)
{
int x = 0;
__m128i v_zero = _mm_setzero_si128();
__m128 v_scale = _mm_set1_ps(scale), v_shift = _mm_set1_ps(shift);
for ( ; x <= width - 8; x += 8)
{
__m128i v_src = _mm_unpacklo_epi8(_mm_loadl_epi64((__m128i const *)(src + x)), v_zero);
__m128 v_src_f = _mm_cvtepi32_ps(_mm_unpacklo_epi16(v_src, v_zero));
__m128 v_dst_0 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift);
v_src_f = _mm_cvtepi32_ps(_mm_unpackhi_epi16(v_src, v_zero));
__m128 v_dst_1 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift);
__m128i v_dst = _mm_packus_epi32(_mm_cvtps_epi32(v_dst_0),
_mm_cvtps_epi32(v_dst_1));
_mm_storeu_si128((__m128i *)(dst + x), v_dst);
}
return x;
}
int cvtScale_SIMD_s8u16f32_SSE41(const schar * src, ushort * dst, int width, float scale, float shift)
{
int x = 0;
__m128i v_zero = _mm_setzero_si128();
__m128 v_scale = _mm_set1_ps(scale), v_shift = _mm_set1_ps(shift);
for ( ; x <= width - 8; x += 8)
{
__m128i v_src = _mm_srai_epi16(_mm_unpacklo_epi8(v_zero, _mm_loadl_epi64((__m128i const *)(src + x))), 8);
__m128 v_src_f = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpacklo_epi16(v_zero, v_src), 16));
__m128 v_dst_0 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift);
v_src_f = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpackhi_epi16(v_zero, v_src), 16));
__m128 v_dst_1 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift);
__m128i v_dst = _mm_packus_epi32(_mm_cvtps_epi32(v_dst_0),
_mm_cvtps_epi32(v_dst_1));
_mm_storeu_si128((__m128i *)(dst + x), v_dst);
}
return x;
}
int cvtScale_SIMD_u16u16f32_SSE41(const ushort * src, ushort * dst, int width, float scale, float shift)
{
int x = 0;
__m128i v_zero = _mm_setzero_si128();
__m128 v_scale = _mm_set1_ps(scale), v_shift = _mm_set1_ps(shift);
for ( ; x <= width - 8; x += 8)
{
__m128i v_src = _mm_loadu_si128((__m128i const *)(src + x));
__m128 v_src_f = _mm_cvtepi32_ps(_mm_unpacklo_epi16(v_src, v_zero));
__m128 v_dst_0 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift);
v_src_f = _mm_cvtepi32_ps(_mm_unpackhi_epi16(v_src, v_zero));
__m128 v_dst_1 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift);
__m128i v_dst = _mm_packus_epi32(_mm_cvtps_epi32(v_dst_0),
_mm_cvtps_epi32(v_dst_1));
_mm_storeu_si128((__m128i *)(dst + x), v_dst);
}
return x;
}
int cvtScale_SIMD_s16u16f32_SSE41(const short * src, ushort * dst, int width, float scale, float shift)
{
int x = 0;
__m128i v_zero = _mm_setzero_si128();
__m128 v_scale = _mm_set1_ps(scale), v_shift = _mm_set1_ps(shift);
for ( ; x <= width - 8; x += 8)
{
__m128i v_src = _mm_loadu_si128((__m128i const *)(src + x));
__m128 v_src_f = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpacklo_epi16(v_zero, v_src), 16));
__m128 v_dst_0 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift);
v_src_f = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpackhi_epi16(v_zero, v_src), 16));
__m128 v_dst_1 = _mm_add_ps(_mm_mul_ps(v_src_f, v_scale), v_shift);
__m128i v_dst = _mm_packus_epi32(_mm_cvtps_epi32(v_dst_0),
_mm_cvtps_epi32(v_dst_1));
_mm_storeu_si128((__m128i *)(dst + x), v_dst);
}
return x;
}
int cvtScale_SIMD_s32u16f32_SSE41(const int * src, ushort * dst, int width, float scale, float shift)
{
int x = 0;
__m128 v_scale = _mm_set1_ps(scale), v_shift = _mm_set1_ps(shift);
for ( ; x <= width - 8; x += 8)
{
__m128i v_src = _mm_loadu_si128((__m128i const *)(src + x));
__m128 v_dst_0 = _mm_add_ps(_mm_mul_ps(_mm_cvtepi32_ps(v_src), v_scale), v_shift);
v_src = _mm_loadu_si128((__m128i const *)(src + x + 4));
__m128 v_dst_1 = _mm_add_ps(_mm_mul_ps(_mm_cvtepi32_ps(v_src), v_scale), v_shift);
__m128i v_dst = _mm_packus_epi32(_mm_cvtps_epi32(v_dst_0),
_mm_cvtps_epi32(v_dst_1));
_mm_storeu_si128((__m128i *)(dst + x), v_dst);
}
return x;
}
int cvtScale_SIMD_f32u16f32_SSE41(const float * src, ushort * dst, int width, float scale, float shift)
{
int x = 0;
__m128 v_scale = _mm_set1_ps(scale), v_shift = _mm_set1_ps(shift);
for ( ; x <= width - 8; x += 8)
{
__m128 v_src = _mm_loadu_ps(src + x);
__m128 v_dst_0 = _mm_add_ps(_mm_mul_ps(v_src, v_scale), v_shift);
v_src = _mm_loadu_ps(src + x + 4);
__m128 v_dst_1 = _mm_add_ps(_mm_mul_ps(v_src, v_scale), v_shift);
__m128i v_dst = _mm_packus_epi32(_mm_cvtps_epi32(v_dst_0),
_mm_cvtps_epi32(v_dst_1));
_mm_storeu_si128((__m128i *)(dst + x), v_dst);
}
return x;
}
int cvtScale_SIMD_f64u16f32_SSE41(const double * src, ushort * dst, int width, float scale, float shift)
{
int x = 0;
__m128 v_scale = _mm_set1_ps(scale), v_shift = _mm_set1_ps(shift);
for ( ; x <= width - 8; x += 8)
{
__m128 v_src = _mm_movelh_ps(_mm_cvtpd_ps(_mm_loadu_pd(src + x)),
_mm_cvtpd_ps(_mm_loadu_pd(src + x + 2)));
__m128 v_dst_0 = _mm_add_ps(_mm_mul_ps(v_src, v_scale), v_shift);
v_src = _mm_movelh_ps(_mm_cvtpd_ps(_mm_loadu_pd(src + x + 4)),
_mm_cvtpd_ps(_mm_loadu_pd(src + x + 6)));
__m128 v_dst_1 = _mm_add_ps(_mm_mul_ps(v_src, v_scale), v_shift);
__m128i v_dst = _mm_packus_epi32(_mm_cvtps_epi32(v_dst_0),
_mm_cvtps_epi32(v_dst_1));
_mm_storeu_si128((__m128i *)(dst + x), v_dst);
}
return x;
}
int Cvt_SIMD_f64u16_SSE41(const double * src, ushort * dst, int width)
{
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;
}
}
} // cv::
/* End of file. */