ceph/src/boost/libs/compute/test/extra/test_interop_vtk.cpp

   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 #define BOOST_TEST_MODULE TestInteropVTK
  12 #include <boost/test/unit_test.hpp>
  13
  14 #include <vtkFloatArray.h>
  15 #include <vtkMatrix4x4.h>
  16 #include <vtkNew.h>
  17 #include <vtkPoints.h>
  18 #include <vtkSmartPointer.h>
  19 #include <vtkUnsignedCharArray.h>
  20
  21 #include <boost/compute/system.hpp>
  22 #include <boost/compute/algorithm/sort.hpp>
  23 #include <boost/compute/container/vector.hpp>
  24 #include <boost/compute/detail/is_contiguous_iterator.hpp>
  25 #include <boost/compute/interop/vtk.hpp>
  26
  27 #include "check_macros.hpp"
  28 #include "context_setup.hpp"
  29
  30 namespace compute = boost::compute;
  31
  32 BOOST_AUTO_TEST_CASE(bounds)
  33 {
  34     using compute::float4_;
  35
  36     // create vtk points
  37     vtkNew<vtkPoints> points;
  38     points->InsertNextPoint(0.0, 0.0, 0.0);
  39     points->InsertNextPoint(1.0, 2.0, 1.0);
  40     points->InsertNextPoint(-1.0, -3.0, -1.0);
  41     points->InsertNextPoint(0.5, 2.5, 1.5);
  42
  43     // copy points to vector on gpu
  44     compute::vector<float4_> vector(points->GetNumberOfPoints(), context);
  45     compute::vtk_copy_points_to_buffer(points.GetPointer(), vector.begin(), queue);
  46
  47     // compute bounds
  48     double bounds[6];
  49     compute::vtk_compute_bounds(vector.begin(), vector.end(), bounds, queue);
  50
  51     // check bounds
  52     BOOST_CHECK_CLOSE(bounds[0], -1.0, 1e-8);
  53     BOOST_CHECK_CLOSE(bounds[1],  1.0, 1e-8);
  54     BOOST_CHECK_CLOSE(bounds[2], -3.0, 1e-8);
  55     BOOST_CHECK_CLOSE(bounds[3],  2.5, 1e-8);
  56     BOOST_CHECK_CLOSE(bounds[4], -1.0, 1e-8);
  57     BOOST_CHECK_CLOSE(bounds[5],  1.5, 1e-8);
  58 }
  59
  60 BOOST_AUTO_TEST_CASE(copy_uchar_array)
  61 {
  62     // create vtk uchar vector containing 3 RGBA colors
  63     vtkNew<vtkUnsignedCharArray> array;
  64     array->SetNumberOfComponents(4);
  65
  66     unsigned char red[4] = { 255, 0, 0, 255 };
  67     array->InsertNextTupleValue(red);
  68     unsigned char green[4] = { 0, 255, 0, 255 };
  69     array->InsertNextTupleValue(green);
  70     unsigned char blue[4] = { 0, 0, 255, 255 };
  71     array->InsertNextTupleValue(blue);
  72
  73     // create vector<uchar4> on device and copy values from vtk array
  74     compute::vector<compute::uchar4_> vector(3, context);
  75     compute::vtk_copy_data_array_to_buffer(
  76         array.GetPointer(),
  77         compute::make_buffer_iterator<compute::uchar_>(vector.get_buffer(), 0),
  78         queue
  79     );
  80
  81     // check values
  82     std::vector<compute::uchar4_> host_vector(3);
  83     compute::copy(
  84         vector.begin(), vector.end(), host_vector.begin(), queue
  85     );
  86     BOOST_CHECK(host_vector[0] == compute::uchar4_(255, 0, 0, 255));
  87     BOOST_CHECK(host_vector[1] == compute::uchar4_(0, 255, 0, 255));
  88     BOOST_CHECK(host_vector[2] == compute::uchar4_(0, 0, 255, 255));
  89 }
  90
  91 BOOST_AUTO_TEST_CASE(sort_float_array)
  92 {
  93     // create vtk float array
  94     vtkNew<vtkFloatArray> array;
  95     array->InsertNextValue(2.5f);
  96     array->InsertNextValue(1.0f);
  97     array->InsertNextValue(6.5f);
  98     array->InsertNextValue(4.0f);
  99
 100     // create vector on device and copy values from vtk array
 101     compute::vector<float> vector(4, context);
 102     compute::vtk_copy_data_array_to_buffer(array.GetPointer(), vector.begin(), queue);
 103
 104     // sort values on the gpu
 105     compute::sort(vector.begin(), vector.end(), queue);
 106     CHECK_RANGE_EQUAL(float, 4, vector, (1.0f, 2.5f, 4.0f, 6.5f));
 107
 108     // copy sorted values back to the vtk array
 109     compute::vtk_copy_buffer_to_data_array(
 110         vector.begin(), vector.end(), array.GetPointer(), queue
 111     );
 112     BOOST_CHECK_EQUAL(array->GetValue(0), 1.0f);
 113     BOOST_CHECK_EQUAL(array->GetValue(1), 2.5f);
 114     BOOST_CHECK_EQUAL(array->GetValue(2), 4.0f);
 115     BOOST_CHECK_EQUAL(array->GetValue(3), 6.5f);
 116 }
 117
 118 BOOST_AUTO_TEST_SUITE_END()