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//                           License Agreement
//                For Open Source Computer Vision Library
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/* ////////////////////////////////////////////////////////////////////
//
//  Geometrical transforms on images and matrices: rotation, zoom etc.
//
// */

#include "precomp.hpp"
#include "imgwarp.hpp"
#include "opencv2/core/hal/intrin.hpp"

namespace cv
{
namespace opt_LASX
{

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 = _v256_setall_w(INTER_TAB_SIZE - 1);
    __m256i XX = _v256_setall_w(X0), YY = _v256_setall_w(Y0);
    for (; x1 <= bw - 16; x1 += 16)
    {
        __m256i tx0, tx1, ty0, ty1;
        tx0 = __lasx_xvadd_w(__lasx_xvld((const __m256i*)(adelta + x1), 0), XX);
        ty0 = __lasx_xvadd_w(__lasx_xvld((const __m256i*)(bdelta + x1), 0), YY);
        tx1 = __lasx_xvadd_w(__lasx_xvld((const __m256i*)(adelta + x1), 8*4), XX);
        ty1 = __lasx_xvadd_w(__lasx_xvld((const __m256i*)(bdelta + x1), 8*4), YY);

        tx0 = __lasx_xvsrai_w(tx0, AB_BITS - INTER_BITS);
        ty0 = __lasx_xvsrai_w(ty0, AB_BITS - INTER_BITS);
        tx1 = __lasx_xvsrai_w(tx1, AB_BITS - INTER_BITS);
        ty1 = __lasx_xvsrai_w(ty1, AB_BITS - INTER_BITS);

        __m256i fx_ = _lasx_packs_w(__lasx_xvand_v(tx0, fxy_mask),
            __lasx_xvand_v(tx1, fxy_mask));
        __m256i fy_ = _lasx_packs_w(__lasx_xvand_v(ty0, fxy_mask),
            __lasx_xvand_v(ty1, fxy_mask));
        tx0 = _lasx_packs_w(__lasx_xvsrai_w(tx0, INTER_BITS),
            __lasx_xvsrai_w(tx1, INTER_BITS));
        ty0 = _lasx_packs_w(__lasx_xvsrai_w(ty0, INTER_BITS),
            __lasx_xvsrai_w(ty1, INTER_BITS));
        fx_ = __lasx_xvsadd_h(fx_, __lasx_xvslli_h(fy_, INTER_BITS));
        fx_ = __lasx_xvpermi_d(fx_, (3 << 6) + (1 << 4) + (2 << 2) + 0);

        __lasx_xvst(__lasx_xvilvl_h(ty0, tx0), (__m256i*)(xy + x1 * 2), 0);
        __lasx_xvst(__lasx_xvilvh_h(ty0, tx0), (__m256i*)(xy + x1 * 2), 16*2);
        __lasx_xvst(fx_, (__m256i*)(alpha + x1), 0);
    }
    return x1;
}

}
}
/* End of file. */