imgwarp.avx2.cpp
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/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Copyright (C) 2014-2015, Itseez Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
/* ////////////////////////////////////////////////////////////////////
//
// Geometrical transforms on images and matrices: rotation, zoom etc.
//
// */
#include "precomp.hpp"
#include "imgwarp.hpp"
namespace cv
{
namespace opt_AVX2
{
int warpAffineBlockline(int *adelta, int *bdelta, short* xy, short* alpha, int X0, int Y0, int bw)
{
const int AB_BITS = MAX(10, (int)INTER_BITS);
int x1 = 0;
__m256i fxy_mask = _mm256_set1_epi32(INTER_TAB_SIZE - 1);
__m256i XX = _mm256_set1_epi32(X0), YY = _mm256_set1_epi32(Y0);
for (; x1 <= bw - 16; x1 += 16)
{
__m256i tx0, tx1, ty0, ty1;
tx0 = _mm256_add_epi32(_mm256_loadu_si256((const __m256i*)(adelta + x1)), XX);
ty0 = _mm256_add_epi32(_mm256_loadu_si256((const __m256i*)(bdelta + x1)), YY);
tx1 = _mm256_add_epi32(_mm256_loadu_si256((const __m256i*)(adelta + x1 + 8)), XX);
ty1 = _mm256_add_epi32(_mm256_loadu_si256((const __m256i*)(bdelta + x1 + 8)), YY);
tx0 = _mm256_srai_epi32(tx0, AB_BITS - INTER_BITS);
ty0 = _mm256_srai_epi32(ty0, AB_BITS - INTER_BITS);
tx1 = _mm256_srai_epi32(tx1, AB_BITS - INTER_BITS);
ty1 = _mm256_srai_epi32(ty1, AB_BITS - INTER_BITS);
__m256i fx_ = _mm256_packs_epi32(_mm256_and_si256(tx0, fxy_mask),
_mm256_and_si256(tx1, fxy_mask));
__m256i fy_ = _mm256_packs_epi32(_mm256_and_si256(ty0, fxy_mask),
_mm256_and_si256(ty1, fxy_mask));
tx0 = _mm256_packs_epi32(_mm256_srai_epi32(tx0, INTER_BITS),
_mm256_srai_epi32(tx1, INTER_BITS));
ty0 = _mm256_packs_epi32(_mm256_srai_epi32(ty0, INTER_BITS),
_mm256_srai_epi32(ty1, INTER_BITS));
fx_ = _mm256_adds_epi16(fx_, _mm256_slli_epi16(fy_, INTER_BITS));
fx_ = _mm256_permute4x64_epi64(fx_, (3 << 6) + (1 << 4) + (2 << 2) + 0);
_mm256_storeu_si256((__m256i*)(xy + x1 * 2), _mm256_unpacklo_epi16(tx0, ty0));
_mm256_storeu_si256((__m256i*)(xy + x1 * 2 + 16), _mm256_unpackhi_epi16(tx0, ty0));
_mm256_storeu_si256((__m256i*)(alpha + x1), fx_);
}
_mm256_zeroupper();
return x1;
}
}
}
/* End of file. */