ceph/src/boost/libs/compute/include/boost/compute/interop/vtk/matrix4x4.hpp

   1 //---------------------------------------------------------------------------//
   2 // Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@gmail.com>
   3 //
   4 // Distributed under the Boost Software License, Version 1.0
   5 // See accompanying file LICENSE_1_0.txt or copy at
   6 // http://www.boost.org/LICENSE_1_0.txt
   7 //
   8 // See http://boostorg.github.com/compute for more information.
   9 //---------------------------------------------------------------------------//
  10
  11 #ifndef BOOST_COMPUTE_INTEROP_VTK_MATRIX4X4_HPP
  12 #define BOOST_COMPUTE_INTEROP_VTK_MATRIX4X4_HPP
  13
  14 #include <vtkMatrix4x4.h>
  15
  16 #include <boost/compute/types/fundamental.hpp>
  17
  18 namespace boost {
  19 namespace compute {
  20
  21 /// Converts a \c vtkMatrix4x4 to a \c float16_.
  22 inline float16_ vtk_matrix4x4_to_float16(const vtkMatrix4x4 *matrix)
  23 {
  24     float16_ result;
  25
  26     for(int i = 0; i < 4; i++){
  27         for(int j = 0; j < 4; j++){
  28             result[i*4+j] = matrix->GetElement(i, j);
  29         }
  30     }
  31
  32     return result;
  33 }
  34
  35 /// Converts a \c vtkMatrix4x4 to a \c double16_;
  36 inline double16_ vtk_matrix4x4_to_double16(const vtkMatrix4x4 *matrix)
  37 {
  38     double16_ result;
  39     std::memcpy(&result, matrix->Element, 16 * sizeof(double));
  40     return result;
  41 }
  42
  43 } // end compute namespace
  44 } // end boost namespace
  45
  46 #endif // BOOST_COMPUTE_INTEROP_VTK_MATRIX4X4_HPP