ceph/src/boost/libs/compute/include/boost/compute/interop/vtk/data_array.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_DATA_ARRAY_HPP
  12 #define BOOST_COMPUTE_INTEROP_VTK_DATA_ARRAY_HPP
  13
  14 #include <vtkDataArray.h>
  15 #include <vtkDataArrayTemplate.h>
  16
  17 #include <boost/compute/system.hpp>
  18 #include <boost/compute/command_queue.hpp>
  19 #include <boost/compute/algorithm/copy.hpp>
  20 #include <boost/compute/algorithm/copy_n.hpp>
  21 #include <boost/compute/iterator/buffer_iterator.hpp>
  22
  23 namespace boost {
  24 namespace compute {
  25
  26 /// Copies the values in \p data to \p buffer.
  27 template<class T>
  28 inline void vtk_copy_data_array_to_buffer(const vtkDataArray *data,
  29                                           buffer_iterator<T> buffer,
  30                                           command_queue &queue = system::default_queue());
  31
  32 /// \internal_
  33 template<class T>
  34 inline void vtk_copy_data_array_to_buffer(const vtkDataArrayTemplate<T> *data,
  35                                           buffer_iterator<T> buffer,
  36                                           command_queue &queue = system::default_queue())
  37 {
  38     vtkDataArrayTemplate<T> *data_ = const_cast<vtkDataArrayTemplate<T> *>(data);
  39     const T *data_ptr = static_cast<const T *>(data_->GetVoidPointer(0));
  40     size_t data_size = data_->GetNumberOfComponents() * data_->GetNumberOfTuples();
  41     ::boost::compute::copy_n(data_ptr, data_size, buffer, queue);
  42 }
  43
  44 /// Copies the values in the range [\p first, \p last) to \p data.
  45 template<class T>
  46 inline void vtk_copy_buffer_to_data_array(buffer_iterator<T> first,
  47                                           buffer_iterator<T> last,
  48                                           vtkDataArray *data,
  49                                           command_queue &queue = system::default_queue());
  50
  51 /// \internal_
  52 template<class T>
  53 inline void vtk_copy_buffer_to_data_array(buffer_iterator<T> first,
  54                                           buffer_iterator<T> last,
  55                                           vtkDataArrayTemplate<T> *data,
  56                                           command_queue &queue = system::default_queue())
  57 {
  58     T *data_ptr = static_cast<T *>(data->GetVoidPointer(0));
  59     ::boost::compute::copy(first, last, data_ptr, queue);
  60 }
  61
  62 } // end compute namespace
  63 } // end boost namespace
  64
  65 #endif // BOOST_COMPUTE_INTEROP_VTK_DATA_ARRAY_HPP