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Open Source Computer Vision Library
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98 lines
4.2 KiB
98 lines
4.2 KiB
/*M/////////////////////////////////////////////////////////////////////////////////////// |
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// |
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// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. |
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// |
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// By downloading, copying, installing or using the software you agree to this license. |
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// If you do not agree to this license, do not download, install, |
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// copy or use the software. |
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// |
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// |
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// License Agreement |
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// For Open Source Computer Vision Library |
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// |
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// Copyright (C) 2000-2008, Intel Corporation, all rights reserved. |
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// Copyright (C) 2009, Willow Garage Inc., all rights reserved. |
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// Copyright (C) 2014-2015, Itseez Inc., all rights reserved. |
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// Third party copyrights are property of their respective owners. |
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// |
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// Redistribution and use in source and binary forms, with or without modification, |
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// are permitted provided that the following conditions are met: |
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// |
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// * Redistribution's of source code must retain the above copyright notice, |
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// this list of conditions and the following disclaimer. |
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// |
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// * Redistribution's in binary form must reproduce the above copyright notice, |
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// this list of conditions and the following disclaimer in the documentation |
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// and/or other materials provided with the distribution. |
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// |
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// * The name of the copyright holders may not be used to endorse or promote products |
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// derived from this software without specific prior written permission. |
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// |
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// This software is provided by the copyright holders and contributors "as is" and |
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// any express or implied warranties, including, but not limited to, the implied |
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// warranties of merchantability and fitness for a particular purpose are disclaimed. |
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// In no event shall the Intel Corporation or contributors be liable for any direct, |
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// indirect, incidental, special, exemplary, or consequential damages |
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// (including, but not limited to, procurement of substitute goods or services; |
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// loss of use, data, or profits; or business interruption) however caused |
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// and on any theory of liability, whether in contract, strict liability, |
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// or tort (including negligence or otherwise) arising in any way out of |
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// the use of this software, even if advised of the possibility of such damage. |
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// |
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//M*/ |
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/* //////////////////////////////////////////////////////////////////// |
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// |
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// Geometrical transforms on images and matrices: rotation, zoom etc. |
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// |
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// */ |
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#include "precomp.hpp" |
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#include "imgwarp.hpp" |
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#include "opencv2/core/hal/intrin.hpp" |
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namespace cv |
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{ |
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namespace opt_LASX |
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{ |
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int warpAffineBlockline(int *adelta, int *bdelta, short* xy, short* alpha, int X0, int Y0, int bw) |
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{ |
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const int AB_BITS = MAX(10, (int)INTER_BITS); |
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int x1 = 0; |
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__m256i fxy_mask = _v256_setall_w(INTER_TAB_SIZE - 1); |
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__m256i XX = _v256_setall_w(X0), YY = _v256_setall_w(Y0); |
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for (; x1 <= bw - 16; x1 += 16) |
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{ |
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__m256i tx0, tx1, ty0, ty1; |
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tx0 = __lasx_xvadd_w(__lasx_xvld((const __m256i*)(adelta + x1), 0), XX); |
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ty0 = __lasx_xvadd_w(__lasx_xvld((const __m256i*)(bdelta + x1), 0), YY); |
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tx1 = __lasx_xvadd_w(__lasx_xvld((const __m256i*)(adelta + x1), 8*4), XX); |
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ty1 = __lasx_xvadd_w(__lasx_xvld((const __m256i*)(bdelta + x1), 8*4), YY); |
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tx0 = __lasx_xvsrai_w(tx0, AB_BITS - INTER_BITS); |
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ty0 = __lasx_xvsrai_w(ty0, AB_BITS - INTER_BITS); |
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tx1 = __lasx_xvsrai_w(tx1, AB_BITS - INTER_BITS); |
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ty1 = __lasx_xvsrai_w(ty1, AB_BITS - INTER_BITS); |
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__m256i fx_ = _lasx_packs_w(__lasx_xvand_v(tx0, fxy_mask), |
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__lasx_xvand_v(tx1, fxy_mask)); |
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__m256i fy_ = _lasx_packs_w(__lasx_xvand_v(ty0, fxy_mask), |
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__lasx_xvand_v(ty1, fxy_mask)); |
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tx0 = _lasx_packs_w(__lasx_xvsrai_w(tx0, INTER_BITS), |
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__lasx_xvsrai_w(tx1, INTER_BITS)); |
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ty0 = _lasx_packs_w(__lasx_xvsrai_w(ty0, INTER_BITS), |
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__lasx_xvsrai_w(ty1, INTER_BITS)); |
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fx_ = __lasx_xvsadd_h(fx_, __lasx_xvslli_h(fy_, INTER_BITS)); |
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fx_ = __lasx_xvpermi_d(fx_, (3 << 6) + (1 << 4) + (2 << 2) + 0); |
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__lasx_xvst(__lasx_xvilvl_h(ty0, tx0), (__m256i*)(xy + x1 * 2), 0); |
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__lasx_xvst(__lasx_xvilvh_h(ty0, tx0), (__m256i*)(xy + x1 * 2), 16*2); |
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__lasx_xvst(fx_, (__m256i*)(alpha + x1), 0); |
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} |
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return x1; |
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} |
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} |
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} |
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/* End of file. */
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