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// For Open Source Computer Vision Library
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// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Copyright (C) 2014-2015, Itseez Inc., all rights reserved.
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/* ////////////////////////////////////////////////////////////////////
//
// Geometrical transforms on images and matrices: rotation, zoom etc.
//
// */
#include "precomp.hpp"
#include "imgwarp.hpp"
namespace cv
{
namespace opt_SSE4_1
{
void convertMaps_nninterpolate32f1c16s_SSE41(const float* src1f, const float* src2f, short* dst1, int width)
{
int x = 0;
for (; x <= width - 16; x += 16)
{
__m128i v_dst0 = _mm_packs_epi32(_mm_cvtps_epi32(_mm_loadu_ps(src1f + x)),
_mm_cvtps_epi32(_mm_loadu_ps(src1f + x + 4)));
__m128i v_dst1 = _mm_packs_epi32(_mm_cvtps_epi32(_mm_loadu_ps(src1f + x + 8)),
_mm_cvtps_epi32(_mm_loadu_ps(src1f + x + 12)));
__m128i v_dst2 = _mm_packs_epi32(_mm_cvtps_epi32(_mm_loadu_ps(src2f + x)),
_mm_cvtps_epi32(_mm_loadu_ps(src2f + x + 4)));
__m128i v_dst3 = _mm_packs_epi32(_mm_cvtps_epi32(_mm_loadu_ps(src2f + x + 8)),
_mm_cvtps_epi32(_mm_loadu_ps(src2f + x + 12)));
_mm_interleave_epi16(v_dst0, v_dst1, v_dst2, v_dst3);
_mm_storeu_si128((__m128i *)(dst1 + x * 2), v_dst0);
_mm_storeu_si128((__m128i *)(dst1 + x * 2 + 8), v_dst1);
_mm_storeu_si128((__m128i *)(dst1 + x * 2 + 16), v_dst2);
_mm_storeu_si128((__m128i *)(dst1 + x * 2 + 24), v_dst3);
}
for (; x < width; x++)
{
dst1[x * 2] = saturate_cast<short>(src1f[x]);
dst1[x * 2 + 1] = saturate_cast<short>(src2f[x]);
}
}
void convertMaps_32f1c16s_SSE41(const float* src1f, const float* src2f, short* dst1, ushort* dst2, int width)
{
int x = 0;
__m128 v_its = _mm_set1_ps(INTER_TAB_SIZE);
__m128i v_its1 = _mm_set1_epi32(INTER_TAB_SIZE - 1);
for (; x <= width - 16; x += 16)
{
__m128i v_ix0 = _mm_cvtps_epi32(_mm_mul_ps(_mm_loadu_ps(src1f + x), v_its));
__m128i v_ix1 = _mm_cvtps_epi32(_mm_mul_ps(_mm_loadu_ps(src1f + x + 4), v_its));
__m128i v_iy0 = _mm_cvtps_epi32(_mm_mul_ps(_mm_loadu_ps(src2f + x), v_its));
__m128i v_iy1 = _mm_cvtps_epi32(_mm_mul_ps(_mm_loadu_ps(src2f + x + 4), v_its));
__m128i v_dst10 = _mm_packs_epi32(_mm_srai_epi32(v_ix0, INTER_BITS),
_mm_srai_epi32(v_ix1, INTER_BITS));
__m128i v_dst12 = _mm_packs_epi32(_mm_srai_epi32(v_iy0, INTER_BITS),
_mm_srai_epi32(v_iy1, INTER_BITS));
__m128i v_dst20 = _mm_add_epi32(_mm_slli_epi32(_mm_and_si128(v_iy0, v_its1), INTER_BITS),
_mm_and_si128(v_ix0, v_its1));
__m128i v_dst21 = _mm_add_epi32(_mm_slli_epi32(_mm_and_si128(v_iy1, v_its1), INTER_BITS),
_mm_and_si128(v_ix1, v_its1));
_mm_storeu_si128((__m128i *)(dst2 + x), _mm_packus_epi32(v_dst20, v_dst21));
v_ix0 = _mm_cvtps_epi32(_mm_mul_ps(_mm_loadu_ps(src1f + x + 8), v_its));
v_ix1 = _mm_cvtps_epi32(_mm_mul_ps(_mm_loadu_ps(src1f + x + 12), v_its));
v_iy0 = _mm_cvtps_epi32(_mm_mul_ps(_mm_loadu_ps(src2f + x + 8), v_its));
v_iy1 = _mm_cvtps_epi32(_mm_mul_ps(_mm_loadu_ps(src2f + x + 12), v_its));
__m128i v_dst11 = _mm_packs_epi32(_mm_srai_epi32(v_ix0, INTER_BITS),
_mm_srai_epi32(v_ix1, INTER_BITS));
__m128i v_dst13 = _mm_packs_epi32(_mm_srai_epi32(v_iy0, INTER_BITS),
_mm_srai_epi32(v_iy1, INTER_BITS));
v_dst20 = _mm_add_epi32(_mm_slli_epi32(_mm_and_si128(v_iy0, v_its1), INTER_BITS),
_mm_and_si128(v_ix0, v_its1));
v_dst21 = _mm_add_epi32(_mm_slli_epi32(_mm_and_si128(v_iy1, v_its1), INTER_BITS),
_mm_and_si128(v_ix1, v_its1));
_mm_storeu_si128((__m128i *)(dst2 + x + 8), _mm_packus_epi32(v_dst20, v_dst21));
_mm_interleave_epi16(v_dst10, v_dst11, v_dst12, v_dst13);
_mm_storeu_si128((__m128i *)(dst1 + x * 2), v_dst10);
_mm_storeu_si128((__m128i *)(dst1 + x * 2 + 8), v_dst11);
_mm_storeu_si128((__m128i *)(dst1 + x * 2 + 16), v_dst12);
_mm_storeu_si128((__m128i *)(dst1 + x * 2 + 24), v_dst13);
}
for (; x < width; x++)
{
int ix = saturate_cast<int>(src1f[x] * INTER_TAB_SIZE);
int iy = saturate_cast<int>(src2f[x] * INTER_TAB_SIZE);
dst1[x * 2] = saturate_cast<short>(ix >> INTER_BITS);
dst1[x * 2 + 1] = saturate_cast<short>(iy >> INTER_BITS);
dst2[x] = (ushort)((iy & (INTER_TAB_SIZE - 1))*INTER_TAB_SIZE + (ix & (INTER_TAB_SIZE - 1)));
}
}
void convertMaps_32f2c16s_SSE41(const float* src1f, short* dst1, ushort* dst2, int width)
{
int x = 0;
__m128 v_its = _mm_set1_ps(INTER_TAB_SIZE);
__m128i v_its1 = _mm_set1_epi32(INTER_TAB_SIZE - 1);
__m128i v_y_mask = _mm_set1_epi32((INTER_TAB_SIZE - 1) << 16);
for (; x <= width - 4; x += 4)
{
__m128i v_src0 = _mm_cvtps_epi32(_mm_mul_ps(_mm_loadu_ps(src1f + x * 2), v_its));
__m128i v_src1 = _mm_cvtps_epi32(_mm_mul_ps(_mm_loadu_ps(src1f + x * 2 + 4), v_its));
__m128i v_dst1 = _mm_packs_epi32(_mm_srai_epi32(v_src0, INTER_BITS),
_mm_srai_epi32(v_src1, INTER_BITS));
_mm_storeu_si128((__m128i *)(dst1 + x * 2), v_dst1);
// x0 y0 x1 y1 . . .
v_src0 = _mm_packs_epi32(_mm_and_si128(v_src0, v_its1),
_mm_and_si128(v_src1, v_its1));
__m128i v_dst2 = _mm_or_si128(_mm_srli_epi32(_mm_and_si128(v_src0, v_y_mask), 16 - INTER_BITS), // y0 0 y1 0 . . .
_mm_and_si128(v_src0, v_its1)); // 0 x0 0 x1 . . .
_mm_storel_epi64((__m128i *)(dst2 + x), _mm_packus_epi32(v_dst2, v_dst2));
}
for (; x < width; x++)
{
int ix = saturate_cast<int>(src1f[x * 2] * INTER_TAB_SIZE);
int iy = saturate_cast<int>(src1f[x * 2 + 1] * INTER_TAB_SIZE);
dst1[x * 2] = saturate_cast<short>(ix >> INTER_BITS);
dst1[x * 2 + 1] = saturate_cast<short>(iy >> INTER_BITS);
dst2[x] = (ushort)((iy & (INTER_TAB_SIZE - 1))*INTER_TAB_SIZE + (ix & (INTER_TAB_SIZE - 1)));
}
}
void WarpAffineInvoker_Blockline_SSE41(int *adelta, int *bdelta, short* xy, int X0, int Y0, int bw)
{
const int AB_BITS = MAX(10, (int)INTER_BITS);
int x1 = 0;
__m128i v_X0 = _mm_set1_epi32(X0);
__m128i v_Y0 = _mm_set1_epi32(Y0);
for (; x1 <= bw - 16; x1 += 16)
{
__m128i v_x0 = _mm_packs_epi32(_mm_srai_epi32(_mm_add_epi32(v_X0, _mm_loadu_si128((__m128i const *)(adelta + x1))), AB_BITS),
_mm_srai_epi32(_mm_add_epi32(v_X0, _mm_loadu_si128((__m128i const *)(adelta + x1 + 4))), AB_BITS));
__m128i v_x1 = _mm_packs_epi32(_mm_srai_epi32(_mm_add_epi32(v_X0, _mm_loadu_si128((__m128i const *)(adelta + x1 + 8))), AB_BITS),
_mm_srai_epi32(_mm_add_epi32(v_X0, _mm_loadu_si128((__m128i const *)(adelta + x1 + 12))), AB_BITS));
__m128i v_y0 = _mm_packs_epi32(_mm_srai_epi32(_mm_add_epi32(v_Y0, _mm_loadu_si128((__m128i const *)(bdelta + x1))), AB_BITS),
_mm_srai_epi32(_mm_add_epi32(v_Y0, _mm_loadu_si128((__m128i const *)(bdelta + x1 + 4))), AB_BITS));
__m128i v_y1 = _mm_packs_epi32(_mm_srai_epi32(_mm_add_epi32(v_Y0, _mm_loadu_si128((__m128i const *)(bdelta + x1 + 8))), AB_BITS),
_mm_srai_epi32(_mm_add_epi32(v_Y0, _mm_loadu_si128((__m128i const *)(bdelta + x1 + 12))), AB_BITS));
_mm_interleave_epi16(v_x0, v_x1, v_y0, v_y1);
_mm_storeu_si128((__m128i *)(xy + x1 * 2), v_x0);
_mm_storeu_si128((__m128i *)(xy + x1 * 2 + 8), v_x1);
_mm_storeu_si128((__m128i *)(xy + x1 * 2 + 16), v_y0);
_mm_storeu_si128((__m128i *)(xy + x1 * 2 + 24), v_y1);
}
for (; x1 < bw; x1++)
{
int X = (X0 + adelta[x1]) >> AB_BITS;
int Y = (Y0 + bdelta[x1]) >> AB_BITS;
xy[x1 * 2] = saturate_cast<short>(X);
xy[x1 * 2 + 1] = saturate_cast<short>(Y);
}
}
class WarpPerspectiveLine_SSE4_Impl CV_FINAL : public WarpPerspectiveLine_SSE4
{
public:
WarpPerspectiveLine_SSE4_Impl(const double *M)
{
CV_UNUSED(M);
}
virtual void processNN(const double *M, short* xy, double X0, double Y0, double W0, int bw) CV_OVERRIDE
{
const __m128d v_M0 = _mm_set1_pd(M[0]);
const __m128d v_M3 = _mm_set1_pd(M[3]);
const __m128d v_M6 = _mm_set1_pd(M[6]);
const __m128d v_intmax = _mm_set1_pd((double)INT_MAX);
const __m128d v_intmin = _mm_set1_pd((double)INT_MIN);
const __m128d v_2 = _mm_set1_pd(2);
const __m128d v_zero = _mm_setzero_pd();
const __m128d v_1 = _mm_set1_pd(1);
int x1 = 0;
__m128d v_X0d = _mm_set1_pd(X0);
__m128d v_Y0d = _mm_set1_pd(Y0);
__m128d v_W0 = _mm_set1_pd(W0);
__m128d v_x1 = _mm_set_pd(1, 0);
for (; x1 <= bw - 16; x1 += 16)
{
// 0-3
__m128i v_X0, v_Y0;
{
__m128d v_W = _mm_add_pd(_mm_mul_pd(v_M6, v_x1), v_W0);
v_W = _mm_andnot_pd(_mm_cmpeq_pd(v_W, v_zero), _mm_div_pd(v_1, v_W));
__m128d v_fX0 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_X0d, _mm_mul_pd(v_M0, v_x1)), v_W)));
__m128d v_fY0 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_Y0d, _mm_mul_pd(v_M3, v_x1)), v_W)));
v_x1 = _mm_add_pd(v_x1, v_2);
v_W = _mm_add_pd(_mm_mul_pd(v_M6, v_x1), v_W0);
v_W = _mm_andnot_pd(_mm_cmpeq_pd(v_W, v_zero), _mm_div_pd(v_1, v_W));
__m128d v_fX1 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_X0d, _mm_mul_pd(v_M0, v_x1)), v_W)));
__m128d v_fY1 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_Y0d, _mm_mul_pd(v_M3, v_x1)), v_W)));
v_x1 = _mm_add_pd(v_x1, v_2);
v_X0 = _mm_castps_si128(_mm_movelh_ps(_mm_castsi128_ps(_mm_cvtpd_epi32(v_fX0)),
_mm_castsi128_ps(_mm_cvtpd_epi32(v_fX1))));
v_Y0 = _mm_castps_si128(_mm_movelh_ps(_mm_castsi128_ps(_mm_cvtpd_epi32(v_fY0)),
_mm_castsi128_ps(_mm_cvtpd_epi32(v_fY1))));
}
// 4-8
__m128i v_X1, v_Y1;
{
__m128d v_W = _mm_add_pd(_mm_mul_pd(v_M6, v_x1), v_W0);
v_W = _mm_andnot_pd(_mm_cmpeq_pd(v_W, v_zero), _mm_div_pd(v_1, v_W));
__m128d v_fX0 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_X0d, _mm_mul_pd(v_M0, v_x1)), v_W)));
__m128d v_fY0 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_Y0d, _mm_mul_pd(v_M3, v_x1)), v_W)));
v_x1 = _mm_add_pd(v_x1, v_2);
v_W = _mm_add_pd(_mm_mul_pd(v_M6, v_x1), v_W0);
v_W = _mm_andnot_pd(_mm_cmpeq_pd(v_W, v_zero), _mm_div_pd(v_1, v_W));
__m128d v_fX1 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_X0d, _mm_mul_pd(v_M0, v_x1)), v_W)));
__m128d v_fY1 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_Y0d, _mm_mul_pd(v_M3, v_x1)), v_W)));
v_x1 = _mm_add_pd(v_x1, v_2);
v_X1 = _mm_castps_si128(_mm_movelh_ps(_mm_castsi128_ps(_mm_cvtpd_epi32(v_fX0)),
_mm_castsi128_ps(_mm_cvtpd_epi32(v_fX1))));
v_Y1 = _mm_castps_si128(_mm_movelh_ps(_mm_castsi128_ps(_mm_cvtpd_epi32(v_fY0)),
_mm_castsi128_ps(_mm_cvtpd_epi32(v_fY1))));
}
// 8-11
__m128i v_X2, v_Y2;
{
__m128d v_W = _mm_add_pd(_mm_mul_pd(v_M6, v_x1), v_W0);
v_W = _mm_andnot_pd(_mm_cmpeq_pd(v_W, v_zero), _mm_div_pd(v_1, v_W));
__m128d v_fX0 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_X0d, _mm_mul_pd(v_M0, v_x1)), v_W)));
__m128d v_fY0 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_Y0d, _mm_mul_pd(v_M3, v_x1)), v_W)));
v_x1 = _mm_add_pd(v_x1, v_2);
v_W = _mm_add_pd(_mm_mul_pd(v_M6, v_x1), v_W0);
v_W = _mm_andnot_pd(_mm_cmpeq_pd(v_W, v_zero), _mm_div_pd(v_1, v_W));
__m128d v_fX1 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_X0d, _mm_mul_pd(v_M0, v_x1)), v_W)));
__m128d v_fY1 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_Y0d, _mm_mul_pd(v_M3, v_x1)), v_W)));
v_x1 = _mm_add_pd(v_x1, v_2);
v_X2 = _mm_castps_si128(_mm_movelh_ps(_mm_castsi128_ps(_mm_cvtpd_epi32(v_fX0)),
_mm_castsi128_ps(_mm_cvtpd_epi32(v_fX1))));
v_Y2 = _mm_castps_si128(_mm_movelh_ps(_mm_castsi128_ps(_mm_cvtpd_epi32(v_fY0)),
_mm_castsi128_ps(_mm_cvtpd_epi32(v_fY1))));
}
// 12-15
__m128i v_X3, v_Y3;
{
__m128d v_W = _mm_add_pd(_mm_mul_pd(v_M6, v_x1), v_W0);
v_W = _mm_andnot_pd(_mm_cmpeq_pd(v_W, v_zero), _mm_div_pd(v_1, v_W));
__m128d v_fX0 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_X0d, _mm_mul_pd(v_M0, v_x1)), v_W)));
__m128d v_fY0 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_Y0d, _mm_mul_pd(v_M3, v_x1)), v_W)));
v_x1 = _mm_add_pd(v_x1, v_2);
v_W = _mm_add_pd(_mm_mul_pd(v_M6, v_x1), v_W0);
v_W = _mm_andnot_pd(_mm_cmpeq_pd(v_W, v_zero), _mm_div_pd(v_1, v_W));
__m128d v_fX1 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_X0d, _mm_mul_pd(v_M0, v_x1)), v_W)));
__m128d v_fY1 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_Y0d, _mm_mul_pd(v_M3, v_x1)), v_W)));
v_x1 = _mm_add_pd(v_x1, v_2);
v_X3 = _mm_castps_si128(_mm_movelh_ps(_mm_castsi128_ps(_mm_cvtpd_epi32(v_fX0)),
_mm_castsi128_ps(_mm_cvtpd_epi32(v_fX1))));
v_Y3 = _mm_castps_si128(_mm_movelh_ps(_mm_castsi128_ps(_mm_cvtpd_epi32(v_fY0)),
_mm_castsi128_ps(_mm_cvtpd_epi32(v_fY1))));
}
// convert to 16s
v_X0 = _mm_packs_epi32(v_X0, v_X1);
v_X1 = _mm_packs_epi32(v_X2, v_X3);
v_Y0 = _mm_packs_epi32(v_Y0, v_Y1);
v_Y1 = _mm_packs_epi32(v_Y2, v_Y3);
_mm_interleave_epi16(v_X0, v_X1, v_Y0, v_Y1);
_mm_storeu_si128((__m128i *)(xy + x1 * 2), v_X0);
_mm_storeu_si128((__m128i *)(xy + x1 * 2 + 8), v_X1);
_mm_storeu_si128((__m128i *)(xy + x1 * 2 + 16), v_Y0);
_mm_storeu_si128((__m128i *)(xy + x1 * 2 + 24), v_Y1);
}
for (; x1 < bw; x1++)
{
double W = W0 + M[6] * x1;
W = W ? 1. / W : 0;
double fX = std::max((double)INT_MIN, std::min((double)INT_MAX, (X0 + M[0] * x1)*W));
double fY = std::max((double)INT_MIN, std::min((double)INT_MAX, (Y0 + M[3] * x1)*W));
int X = saturate_cast<int>(fX);
int Y = saturate_cast<int>(fY);
xy[x1 * 2] = saturate_cast<short>(X);
xy[x1 * 2 + 1] = saturate_cast<short>(Y);
}
}
virtual void process(const double *M, short* xy, short* alpha, double X0, double Y0, double W0, int bw) CV_OVERRIDE
{
const __m128d v_M0 = _mm_set1_pd(M[0]);
const __m128d v_M3 = _mm_set1_pd(M[3]);
const __m128d v_M6 = _mm_set1_pd(M[6]);
const __m128d v_intmax = _mm_set1_pd((double)INT_MAX);
const __m128d v_intmin = _mm_set1_pd((double)INT_MIN);
const __m128d v_2 = _mm_set1_pd(2);
const __m128d v_zero = _mm_setzero_pd();
const __m128d v_its = _mm_set1_pd(INTER_TAB_SIZE);
const __m128i v_itsi1 = _mm_set1_epi32(INTER_TAB_SIZE - 1);
int x1 = 0;
__m128d v_X0d = _mm_set1_pd(X0);
__m128d v_Y0d = _mm_set1_pd(Y0);
__m128d v_W0 = _mm_set1_pd(W0);
__m128d v_x1 = _mm_set_pd(1, 0);
for (; x1 <= bw - 16; x1 += 16)
{
// 0-3
__m128i v_X0, v_Y0;
{
__m128d v_W = _mm_add_pd(_mm_mul_pd(v_M6, v_x1), v_W0);
v_W = _mm_andnot_pd(_mm_cmpeq_pd(v_W, v_zero), _mm_div_pd(v_its, v_W));
__m128d v_fX0 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_X0d, _mm_mul_pd(v_M0, v_x1)), v_W)));
__m128d v_fY0 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_Y0d, _mm_mul_pd(v_M3, v_x1)), v_W)));
v_x1 = _mm_add_pd(v_x1, v_2);
v_W = _mm_add_pd(_mm_mul_pd(v_M6, v_x1), v_W0);
v_W = _mm_andnot_pd(_mm_cmpeq_pd(v_W, v_zero), _mm_div_pd(v_its, v_W));
__m128d v_fX1 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_X0d, _mm_mul_pd(v_M0, v_x1)), v_W)));
__m128d v_fY1 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_Y0d, _mm_mul_pd(v_M3, v_x1)), v_W)));
v_x1 = _mm_add_pd(v_x1, v_2);
v_X0 = _mm_castps_si128(_mm_movelh_ps(_mm_castsi128_ps(_mm_cvtpd_epi32(v_fX0)),
_mm_castsi128_ps(_mm_cvtpd_epi32(v_fX1))));
v_Y0 = _mm_castps_si128(_mm_movelh_ps(_mm_castsi128_ps(_mm_cvtpd_epi32(v_fY0)),
_mm_castsi128_ps(_mm_cvtpd_epi32(v_fY1))));
}
// 4-8
__m128i v_X1, v_Y1;
{
__m128d v_W = _mm_add_pd(_mm_mul_pd(v_M6, v_x1), v_W0);
v_W = _mm_andnot_pd(_mm_cmpeq_pd(v_W, v_zero), _mm_div_pd(v_its, v_W));
__m128d v_fX0 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_X0d, _mm_mul_pd(v_M0, v_x1)), v_W)));
__m128d v_fY0 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_Y0d, _mm_mul_pd(v_M3, v_x1)), v_W)));
v_x1 = _mm_add_pd(v_x1, v_2);
v_W = _mm_add_pd(_mm_mul_pd(v_M6, v_x1), v_W0);
v_W = _mm_andnot_pd(_mm_cmpeq_pd(v_W, v_zero), _mm_div_pd(v_its, v_W));
__m128d v_fX1 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_X0d, _mm_mul_pd(v_M0, v_x1)), v_W)));
__m128d v_fY1 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_Y0d, _mm_mul_pd(v_M3, v_x1)), v_W)));
v_x1 = _mm_add_pd(v_x1, v_2);
v_X1 = _mm_castps_si128(_mm_movelh_ps(_mm_castsi128_ps(_mm_cvtpd_epi32(v_fX0)),
_mm_castsi128_ps(_mm_cvtpd_epi32(v_fX1))));
v_Y1 = _mm_castps_si128(_mm_movelh_ps(_mm_castsi128_ps(_mm_cvtpd_epi32(v_fY0)),
_mm_castsi128_ps(_mm_cvtpd_epi32(v_fY1))));
}
// 8-11
__m128i v_X2, v_Y2;
{
__m128d v_W = _mm_add_pd(_mm_mul_pd(v_M6, v_x1), v_W0);
v_W = _mm_andnot_pd(_mm_cmpeq_pd(v_W, v_zero), _mm_div_pd(v_its, v_W));
__m128d v_fX0 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_X0d, _mm_mul_pd(v_M0, v_x1)), v_W)));
__m128d v_fY0 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_Y0d, _mm_mul_pd(v_M3, v_x1)), v_W)));
v_x1 = _mm_add_pd(v_x1, v_2);
v_W = _mm_add_pd(_mm_mul_pd(v_M6, v_x1), v_W0);
v_W = _mm_andnot_pd(_mm_cmpeq_pd(v_W, v_zero), _mm_div_pd(v_its, v_W));
__m128d v_fX1 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_X0d, _mm_mul_pd(v_M0, v_x1)), v_W)));
__m128d v_fY1 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_Y0d, _mm_mul_pd(v_M3, v_x1)), v_W)));
v_x1 = _mm_add_pd(v_x1, v_2);
v_X2 = _mm_castps_si128(_mm_movelh_ps(_mm_castsi128_ps(_mm_cvtpd_epi32(v_fX0)),
_mm_castsi128_ps(_mm_cvtpd_epi32(v_fX1))));
v_Y2 = _mm_castps_si128(_mm_movelh_ps(_mm_castsi128_ps(_mm_cvtpd_epi32(v_fY0)),
_mm_castsi128_ps(_mm_cvtpd_epi32(v_fY1))));
}
// 12-15
__m128i v_X3, v_Y3;
{
__m128d v_W = _mm_add_pd(_mm_mul_pd(v_M6, v_x1), v_W0);
v_W = _mm_andnot_pd(_mm_cmpeq_pd(v_W, v_zero), _mm_div_pd(v_its, v_W));
__m128d v_fX0 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_X0d, _mm_mul_pd(v_M0, v_x1)), v_W)));
__m128d v_fY0 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_Y0d, _mm_mul_pd(v_M3, v_x1)), v_W)));
v_x1 = _mm_add_pd(v_x1, v_2);
v_W = _mm_add_pd(_mm_mul_pd(v_M6, v_x1), v_W0);
v_W = _mm_andnot_pd(_mm_cmpeq_pd(v_W, v_zero), _mm_div_pd(v_its, v_W));
__m128d v_fX1 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_X0d, _mm_mul_pd(v_M0, v_x1)), v_W)));
__m128d v_fY1 = _mm_max_pd(v_intmin, _mm_min_pd(v_intmax, _mm_mul_pd(_mm_add_pd(v_Y0d, _mm_mul_pd(v_M3, v_x1)), v_W)));
v_x1 = _mm_add_pd(v_x1, v_2);
v_X3 = _mm_castps_si128(_mm_movelh_ps(_mm_castsi128_ps(_mm_cvtpd_epi32(v_fX0)),
_mm_castsi128_ps(_mm_cvtpd_epi32(v_fX1))));
v_Y3 = _mm_castps_si128(_mm_movelh_ps(_mm_castsi128_ps(_mm_cvtpd_epi32(v_fY0)),
_mm_castsi128_ps(_mm_cvtpd_epi32(v_fY1))));
}
// store alpha
__m128i v_alpha0 = _mm_add_epi32(_mm_slli_epi32(_mm_and_si128(v_Y0, v_itsi1), INTER_BITS),
_mm_and_si128(v_X0, v_itsi1));
__m128i v_alpha1 = _mm_add_epi32(_mm_slli_epi32(_mm_and_si128(v_Y1, v_itsi1), INTER_BITS),
_mm_and_si128(v_X1, v_itsi1));
_mm_storeu_si128((__m128i *)(alpha + x1), _mm_packs_epi32(v_alpha0, v_alpha1));
v_alpha0 = _mm_add_epi32(_mm_slli_epi32(_mm_and_si128(v_Y2, v_itsi1), INTER_BITS),
_mm_and_si128(v_X2, v_itsi1));
v_alpha1 = _mm_add_epi32(_mm_slli_epi32(_mm_and_si128(v_Y3, v_itsi1), INTER_BITS),
_mm_and_si128(v_X3, v_itsi1));
_mm_storeu_si128((__m128i *)(alpha + x1 + 8), _mm_packs_epi32(v_alpha0, v_alpha1));
// convert to 16s
v_X0 = _mm_packs_epi32(_mm_srai_epi32(v_X0, INTER_BITS), _mm_srai_epi32(v_X1, INTER_BITS));
v_X1 = _mm_packs_epi32(_mm_srai_epi32(v_X2, INTER_BITS), _mm_srai_epi32(v_X3, INTER_BITS));
v_Y0 = _mm_packs_epi32(_mm_srai_epi32(v_Y0, INTER_BITS), _mm_srai_epi32(v_Y1, INTER_BITS));
v_Y1 = _mm_packs_epi32(_mm_srai_epi32(v_Y2, INTER_BITS), _mm_srai_epi32(v_Y3, INTER_BITS));
_mm_interleave_epi16(v_X0, v_X1, v_Y0, v_Y1);
_mm_storeu_si128((__m128i *)(xy + x1 * 2), v_X0);
_mm_storeu_si128((__m128i *)(xy + x1 * 2 + 8), v_X1);
_mm_storeu_si128((__m128i *)(xy + x1 * 2 + 16), v_Y0);
_mm_storeu_si128((__m128i *)(xy + x1 * 2 + 24), v_Y1);
}
for (; x1 < bw; x1++)
{
double W = W0 + M[6] * x1;
W = W ? INTER_TAB_SIZE / W : 0;
double fX = std::max((double)INT_MIN, std::min((double)INT_MAX, (X0 + M[0] * x1)*W));
double fY = std::max((double)INT_MIN, std::min((double)INT_MAX, (Y0 + M[3] * x1)*W));
int X = saturate_cast<int>(fX);
int Y = saturate_cast<int>(fY);
xy[x1 * 2] = saturate_cast<short>(X >> INTER_BITS);
xy[x1 * 2 + 1] = saturate_cast<short>(Y >> INTER_BITS);
alpha[x1] = (short)((Y & (INTER_TAB_SIZE - 1))*INTER_TAB_SIZE +
(X & (INTER_TAB_SIZE - 1)));
}
}
virtual ~WarpPerspectiveLine_SSE4_Impl() CV_OVERRIDE {};
};
Ptr<WarpPerspectiveLine_SSE4> WarpPerspectiveLine_SSE4::getImpl(const double *M)
{
return Ptr<WarpPerspectiveLine_SSE4>(new WarpPerspectiveLine_SSE4_Impl(M));
}
}
}
/* End of file. */