LCOV - code coverage report
Current view: top level - Geometry/arch - Geometry_SIMD.h (source / functions) Hit Total Coverage
Test: coverage.info.cleaned Lines: 19 19 100.0 %
Date: 1980-01-01 00:00:00 Functions: 1 1 100.0 %
Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : // This file is part of Eigen, a lightweight C++ template library
       2                 :            : // for linear algebra.
       3                 :            : //
       4                 :            : // Copyright (C) 2009 Rohit Garg <rpg.314@gmail.com>
       5                 :            : // Copyright (C) 2009-2010 Gael Guennebaud <gael.guennebaud@inria.fr>
       6                 :            : //
       7                 :            : // This Source Code Form is subject to the terms of the Mozilla
       8                 :            : // Public License v. 2.0. If a copy of the MPL was not distributed
       9                 :            : // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
      10                 :            : 
      11                 :            : #ifndef EIGEN_GEOMETRY_SIMD_H
      12                 :            : #define EIGEN_GEOMETRY_SIMD_H
      13                 :            : 
      14                 :            : namespace Eigen { 
      15                 :            : 
      16                 :            : namespace internal {
      17                 :            : 
      18                 :            : template<class Derived, class OtherDerived>
      19                 :            : struct quat_product<Architecture::Target, Derived, OtherDerived, float>
      20                 :            : {
      21                 :            :   enum {
      22                 :            :     AAlignment = traits<Derived>::Alignment,
      23                 :            :     BAlignment = traits<OtherDerived>::Alignment,
      24                 :            :     ResAlignment = traits<Quaternion<float> >::Alignment
      25                 :            :   };
      26                 :            :   static inline Quaternion<float> run(const QuaternionBase<Derived>& _a, const QuaternionBase<OtherDerived>& _b)
      27                 :            :   {
      28                 :            :     evaluator<typename Derived::Coefficients> ae(_a.coeffs());
      29                 :            :     evaluator<typename OtherDerived::Coefficients> be(_b.coeffs());
      30                 :            :     Quaternion<float> res;
      31                 :            :     const float neg_zero = numext::bit_cast<float>(0x80000000u);
      32                 :            :     const float arr[4] = {0.f, 0.f, 0.f, neg_zero};
      33                 :            :     const Packet4f mask = ploadu<Packet4f>(arr);
      34                 :            :     Packet4f a = ae.template packet<AAlignment,Packet4f>(0);
      35                 :            :     Packet4f b = be.template packet<BAlignment,Packet4f>(0);
      36                 :            :     Packet4f s1 = pmul(vec4f_swizzle1(a,1,2,0,2),vec4f_swizzle1(b,2,0,1,2));
      37                 :            :     Packet4f s2 = pmul(vec4f_swizzle1(a,3,3,3,1),vec4f_swizzle1(b,0,1,2,1));
      38                 :            :     pstoret<float,Packet4f,ResAlignment>(
      39                 :            :               &res.x(),
      40                 :            :               padd(psub(pmul(a,vec4f_swizzle1(b,3,3,3,3)),
      41                 :            :                                     pmul(vec4f_swizzle1(a,2,0,1,0),
      42                 :            :                                                vec4f_swizzle1(b,1,2,0,0))),
      43                 :            :                          pxor(mask,padd(s1,s2))));
      44                 :            :     
      45                 :            :     return res;
      46                 :            :   }
      47                 :            : };
      48                 :            : 
      49                 :            : template<class Derived>
      50                 :            : struct quat_conj<Architecture::Target, Derived, float>
      51                 :            : {
      52                 :            :   enum {
      53                 :            :     ResAlignment = traits<Quaternion<float> >::Alignment
      54                 :            :   };
      55                 :            :   static inline Quaternion<float> run(const QuaternionBase<Derived>& q)
      56                 :            :   {
      57                 :            :     evaluator<typename Derived::Coefficients> qe(q.coeffs());
      58                 :            :     Quaternion<float> res;
      59                 :            :     const float neg_zero = numext::bit_cast<float>(0x80000000u);
      60                 :            :     const float arr[4] = {neg_zero, neg_zero, neg_zero,0.f};
      61                 :            :     const Packet4f mask = ploadu<Packet4f>(arr);
      62                 :            :     pstoret<float,Packet4f,ResAlignment>(&res.x(), pxor(mask, qe.template packet<traits<Derived>::Alignment,Packet4f>(0)));
      63                 :            :     return res;
      64                 :            :   }
      65                 :            : };
      66                 :            : 
      67                 :            : 
      68                 :            : template<typename VectorLhs,typename VectorRhs>
      69                 :            : struct cross3_impl<Architecture::Target,VectorLhs,VectorRhs,float,true>
      70                 :            : {
      71                 :            :   enum {
      72                 :            :     ResAlignment = traits<typename plain_matrix_type<VectorLhs>::type>::Alignment
      73                 :            :   };
      74                 :            :   static inline typename plain_matrix_type<VectorLhs>::type
      75                 :            :   run(const VectorLhs& lhs, const VectorRhs& rhs)
      76                 :            :   {
      77                 :            :     evaluator<VectorLhs> lhs_eval(lhs);
      78                 :            :     evaluator<VectorRhs> rhs_eval(rhs);
      79                 :            :     Packet4f a = lhs_eval.template packet<traits<VectorLhs>::Alignment,Packet4f>(0);
      80                 :            :     Packet4f b = rhs_eval.template packet<traits<VectorRhs>::Alignment,Packet4f>(0);
      81                 :            :     Packet4f mul1 = pmul(vec4f_swizzle1(a,1,2,0,3),vec4f_swizzle1(b,2,0,1,3));
      82                 :            :     Packet4f mul2 = pmul(vec4f_swizzle1(a,2,0,1,3),vec4f_swizzle1(b,1,2,0,3));
      83                 :            :     typename plain_matrix_type<VectorLhs>::type res;
      84                 :            :     pstoret<float,Packet4f,ResAlignment>(&res.x(),psub(mul1,mul2));
      85                 :            :     return res;
      86                 :            :   }
      87                 :            : };
      88                 :            : 
      89                 :            : 
      90                 :            : 
      91                 :            : #if (defined EIGEN_VECTORIZE_SSE) || (EIGEN_ARCH_ARM64)
      92                 :            : 
      93                 :            : template<class Derived, class OtherDerived>
      94                 :            : struct quat_product<Architecture::Target, Derived, OtherDerived, double>
      95                 :            : {
      96                 :            :   enum {
      97                 :            :     BAlignment = traits<OtherDerived>::Alignment,
      98                 :            :     ResAlignment = traits<Quaternion<double> >::Alignment
      99                 :            :   };
     100                 :            : 
     101                 :       2000 :   static inline Quaternion<double> run(const QuaternionBase<Derived>& _a, const QuaternionBase<OtherDerived>& _b)
     102                 :            :   {
     103                 :       2000 :   Quaternion<double> res;
     104                 :            : 
     105                 :       2000 :   evaluator<typename Derived::Coefficients> ae(_a.coeffs());
     106                 :       2000 :   evaluator<typename OtherDerived::Coefficients> be(_b.coeffs());
     107                 :            : 
     108                 :       2000 :   const double* a = _a.coeffs().data();
     109                 :       2000 :   Packet2d b_xy = be.template packet<BAlignment,Packet2d>(0);
     110                 :       2000 :   Packet2d b_zw = be.template packet<BAlignment,Packet2d>(2);
     111                 :       2000 :   Packet2d a_xx = pset1<Packet2d>(a[0]);
     112                 :       2000 :   Packet2d a_yy = pset1<Packet2d>(a[1]);
     113                 :       2000 :   Packet2d a_zz = pset1<Packet2d>(a[2]);
     114                 :       2000 :   Packet2d a_ww = pset1<Packet2d>(a[3]);
     115                 :            : 
     116                 :            :   // two temporaries:
     117                 :            :   Packet2d t1, t2;
     118                 :            : 
     119                 :            :   /*
     120                 :            :    * t1 = ww*xy + yy*zw
     121                 :            :    * t2 = zz*xy - xx*zw
     122                 :            :    * res.xy = t1 +/- swap(t2)
     123                 :            :    */
     124                 :       2000 :   t1 = padd(pmul(a_ww, b_xy), pmul(a_yy, b_zw));
     125                 :       2000 :   t2 = psub(pmul(a_zz, b_xy), pmul(a_xx, b_zw));
     126                 :       2000 :   pstoret<double,Packet2d,ResAlignment>(&res.x(), paddsub(t1, preverse(t2)));
     127                 :            :   
     128                 :            :   /*
     129                 :            :    * t1 = ww*zw - yy*xy
     130                 :            :    * t2 = zz*zw + xx*xy
     131                 :            :    * res.zw = t1 -/+ swap(t2) = swap( swap(t1) +/- t2)
     132                 :            :    */
     133                 :       2000 :   t1 = psub(pmul(a_ww, b_zw), pmul(a_yy, b_xy));
     134                 :       2000 :   t2 = padd(pmul(a_zz, b_zw), pmul(a_xx, b_xy));
     135                 :       2000 :   pstoret<double,Packet2d,ResAlignment>(&res.z(), preverse(paddsub(preverse(t1), t2)));
     136                 :            : 
     137                 :       4000 :   return res;
     138                 :       2000 : }
     139                 :            : };
     140                 :            : 
     141                 :            : template<class Derived>
     142                 :            : struct quat_conj<Architecture::Target, Derived, double>
     143                 :            : {
     144                 :            :   enum {
     145                 :            :     ResAlignment = traits<Quaternion<double> >::Alignment
     146                 :            :   };
     147                 :            :   static inline Quaternion<double> run(const QuaternionBase<Derived>& q)
     148                 :            :   {
     149                 :            :     evaluator<typename Derived::Coefficients> qe(q.coeffs());
     150                 :            :     Quaternion<double> res;
     151                 :            :     const double neg_zero = numext::bit_cast<double>(0x8000000000000000ull);
     152                 :            :     const double arr1[2] = {neg_zero, neg_zero};
     153                 :            :     const double arr2[2] = {neg_zero,  0.0};
     154                 :            :     const Packet2d mask0 = ploadu<Packet2d>(arr1);
     155                 :            :     const Packet2d mask2 = ploadu<Packet2d>(arr2);
     156                 :            :     pstoret<double,Packet2d,ResAlignment>(&res.x(), pxor(mask0, qe.template packet<traits<Derived>::Alignment,Packet2d>(0)));
     157                 :            :     pstoret<double,Packet2d,ResAlignment>(&res.z(), pxor(mask2, qe.template packet<traits<Derived>::Alignment,Packet2d>(2)));
     158                 :            :     return res;
     159                 :            :   }
     160                 :            : };
     161                 :            : 
     162                 :            : #endif // end EIGEN_VECTORIZE_SSE_OR_EIGEN_ARCH_ARM64
     163                 :            : 
     164                 :            : } // end namespace internal
     165                 :            : 
     166                 :            : } // end namespace Eigen
     167                 :            : 
     168                 :            : #endif // EIGEN_GEOMETRY_SIMD_H

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