119 lines
3.9 KiB
C++
119 lines
3.9 KiB
C++
//---------------------------------------------------------------------------//
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// Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@gmail.com>
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//
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// Distributed under the Boost Software License, Version 1.0
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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//
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// See http://boostorg.github.com/compute for more information.
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//---------------------------------------------------------------------------//
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#define BOOST_TEST_MODULE TestInteropVTK
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#include <boost/test/unit_test.hpp>
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#include <vtkFloatArray.h>
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#include <vtkMatrix4x4.h>
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#include <vtkNew.h>
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#include <vtkPoints.h>
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#include <vtkSmartPointer.h>
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#include <vtkUnsignedCharArray.h>
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#include <boost/compute/system.hpp>
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#include <boost/compute/algorithm/sort.hpp>
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#include <boost/compute/container/vector.hpp>
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#include <boost/compute/detail/is_contiguous_iterator.hpp>
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#include <boost/compute/interop/vtk.hpp>
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#include "check_macros.hpp"
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#include "context_setup.hpp"
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namespace compute = boost::compute;
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BOOST_AUTO_TEST_CASE(bounds)
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{
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using compute::float4_;
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// create vtk points
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vtkNew<vtkPoints> points;
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points->InsertNextPoint(0.0, 0.0, 0.0);
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points->InsertNextPoint(1.0, 2.0, 1.0);
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points->InsertNextPoint(-1.0, -3.0, -1.0);
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points->InsertNextPoint(0.5, 2.5, 1.5);
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// copy points to vector on gpu
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compute::vector<float4_> vector(points->GetNumberOfPoints(), context);
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compute::vtk_copy_points_to_buffer(points.GetPointer(), vector.begin(), queue);
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// compute bounds
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double bounds[6];
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compute::vtk_compute_bounds(vector.begin(), vector.end(), bounds, queue);
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// check bounds
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BOOST_CHECK_CLOSE(bounds[0], -1.0, 1e-8);
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BOOST_CHECK_CLOSE(bounds[1], 1.0, 1e-8);
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BOOST_CHECK_CLOSE(bounds[2], -3.0, 1e-8);
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BOOST_CHECK_CLOSE(bounds[3], 2.5, 1e-8);
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BOOST_CHECK_CLOSE(bounds[4], -1.0, 1e-8);
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BOOST_CHECK_CLOSE(bounds[5], 1.5, 1e-8);
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}
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BOOST_AUTO_TEST_CASE(copy_uchar_array)
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{
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// create vtk uchar vector containing 3 RGBA colors
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vtkNew<vtkUnsignedCharArray> array;
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array->SetNumberOfComponents(4);
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unsigned char red[4] = { 255, 0, 0, 255 };
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array->InsertNextTupleValue(red);
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unsigned char green[4] = { 0, 255, 0, 255 };
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array->InsertNextTupleValue(green);
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unsigned char blue[4] = { 0, 0, 255, 255 };
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array->InsertNextTupleValue(blue);
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// create vector<uchar4> on device and copy values from vtk array
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compute::vector<compute::uchar4_> vector(3, context);
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compute::vtk_copy_data_array_to_buffer(
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array.GetPointer(),
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compute::make_buffer_iterator<compute::uchar_>(vector.get_buffer(), 0),
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queue
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);
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// check values
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std::vector<compute::uchar4_> host_vector(3);
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compute::copy(
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vector.begin(), vector.end(), host_vector.begin(), queue
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);
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BOOST_CHECK(host_vector[0] == compute::uchar4_(255, 0, 0, 255));
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BOOST_CHECK(host_vector[1] == compute::uchar4_(0, 255, 0, 255));
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BOOST_CHECK(host_vector[2] == compute::uchar4_(0, 0, 255, 255));
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}
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BOOST_AUTO_TEST_CASE(sort_float_array)
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{
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// create vtk float array
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vtkNew<vtkFloatArray> array;
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array->InsertNextValue(2.5f);
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array->InsertNextValue(1.0f);
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array->InsertNextValue(6.5f);
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array->InsertNextValue(4.0f);
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// create vector on device and copy values from vtk array
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compute::vector<float> vector(4, context);
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compute::vtk_copy_data_array_to_buffer(array.GetPointer(), vector.begin(), queue);
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// sort values on the gpu
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compute::sort(vector.begin(), vector.end(), queue);
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CHECK_RANGE_EQUAL(float, 4, vector, (1.0f, 2.5f, 4.0f, 6.5f));
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// copy sorted values back to the vtk array
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compute::vtk_copy_buffer_to_data_array(
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vector.begin(), vector.end(), array.GetPointer(), queue
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);
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BOOST_CHECK_EQUAL(array->GetValue(0), 1.0f);
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BOOST_CHECK_EQUAL(array->GetValue(1), 2.5f);
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BOOST_CHECK_EQUAL(array->GetValue(2), 4.0f);
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BOOST_CHECK_EQUAL(array->GetValue(3), 6.5f);
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}
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BOOST_AUTO_TEST_SUITE_END()
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