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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_POINTS_HPP | |
12 | #define BOOST_COMPUTE_INTEROP_VTK_POINTS_HPP | |
13 | ||
14 | #include <vector> | |
15 | ||
16 | #include <vtkPoints.h> | |
17 | ||
18 | #include <boost/compute/system.hpp> | |
19 | #include <boost/compute/command_queue.hpp> | |
20 | #include <boost/compute/algorithm/copy.hpp> | |
21 | #include <boost/compute/iterator/buffer_iterator.hpp> | |
22 | ||
23 | namespace boost { | |
24 | namespace compute { | |
25 | ||
26 | /// Copies \p points to \p buffer. | |
27 | /// | |
28 | /// For example, to copy from a \c vtkPoints object to a \c vector<float4_>: | |
29 | /// \code | |
30 | /// vtkPoints *points = ... | |
31 | /// vector<float4_> vector(points->GetNumberOfPoints(), context); | |
32 | /// vtk_copy_points_to_buffer(points, vector.begin(), queue); | |
33 | /// \endcode | |
34 | template<class PointType> | |
35 | inline void vtk_copy_points_to_buffer(const vtkPoints *points, | |
36 | buffer_iterator<PointType> buffer, | |
37 | command_queue &queue = system::default_queue()) | |
38 | { | |
39 | vtkPoints *points_ = const_cast<vtkPoints *>(points); | |
40 | ||
41 | // copy points to aligned buffer | |
42 | std::vector<PointType> tmp(points_->GetNumberOfPoints()); | |
43 | for(vtkIdType i = 0; i < points_->GetNumberOfPoints(); i++){ | |
44 | double *p = points_->GetPoint(i); | |
45 | tmp[i] = PointType(p[0], p[1], p[2], 1); | |
46 | } | |
47 | ||
48 | // copy data to device | |
49 | copy(tmp.begin(), tmp.end(), buffer, queue); | |
50 | } | |
51 | ||
52 | } // end compute namespace | |
53 | } // end boost namespace | |
54 | ||
55 | #endif // BOOST_COMPUTE_INTEROP_VTK_POINTS_HPP |