mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-20 02:55:47 +00:00
99 lines
3.7 KiB
C++
99 lines
3.7 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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//
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//============================================================================
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#include <vtkm/cont/testing/MakeTestDataSet.h>
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#include <vtkm/cont/testing/Testing.h>
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#include <vtkm/filter/MarchingCubes.h>
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#include <vtkm/worklet/connectivities/ImageConnectivity.h>
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class TestImageConnectivity
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{
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public:
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using Algorithm = vtkm::cont::Algorithm;
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void operator()() const
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{
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CCL_CUDA8x4();
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CCL_CUDA8x8();
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}
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void CCL_CUDA8x4() const
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{
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// example image from Connected Component Labeling in CUDA by OndˇrejˇŚtava,
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// Bedˇrich Beneˇ
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std::vector<vtkm::UInt8> pixels(8 * 4, 0);
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pixels[3] = pixels[4] = pixels[10] = pixels[11] = 1;
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pixels[1] = pixels[9] = pixels[16] = pixels[17] = pixels[24] = pixels[25] = 1;
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pixels[7] = pixels[15] = pixels[21] = pixels[23] = pixels[28] = pixels[29] = pixels[30] =
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pixels[31] = 1;
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vtkm::cont::DataSetBuilderUniform builder;
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vtkm::cont::DataSet data = builder.Create(vtkm::Id3(8, 4, 1));
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auto colorField =
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vtkm::cont::make_Field("color", vtkm::cont::Field::Association::POINTS, pixels);
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data.AddField(colorField);
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vtkm::cont::ArrayHandle<vtkm::Id> component;
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vtkm::worklet::connectivity::ImageConnectivity().Run(
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data.GetCellSet(0).Cast<vtkm::cont::CellSetStructured<2>>(), colorField.GetData(), component);
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std::vector<vtkm::Id> componentExpected = { 0, 1, 2, 1, 1, 3, 3, 4, 0, 1, 1, 1, 3, 3, 3, 4,
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1, 1, 3, 3, 3, 4, 3, 4, 1, 1, 3, 3, 4, 4, 4, 4 };
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std::size_t i = 0;
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for (vtkm::Id index = 0; index < component.GetNumberOfValues(); index++, i++)
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{
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VTKM_TEST_ASSERT(component.GetPortalConstControl().Get(index) == componentExpected[i],
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"Components has unexpected value.");
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}
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}
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void CCL_CUDA8x8() const
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{
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// example from Figure 35.7 of Connected Component Labeling in CUDA by OndˇrejˇŚtava,
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// Bedˇrich Beneˇ
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std::vector<vtkm::UInt8> pixels{
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0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1,
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1, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1,
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1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0,
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};
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vtkm::cont::DataSetBuilderUniform builder;
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vtkm::cont::DataSet data = builder.Create(vtkm::Id3(8, 8, 1));
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auto colorField =
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vtkm::cont::make_Field("color", vtkm::cont::Field::Association::POINTS, pixels);
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data.AddField(colorField);
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vtkm::cont::ArrayHandle<vtkm::Id> component;
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vtkm::worklet::connectivity::ImageConnectivity().Run(
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data.GetCellSet(0).Cast<vtkm::cont::CellSetStructured<2>>(), colorField.GetData(), component);
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std::vector<vtkm::UInt8> componentExpected = { 0, 1, 1, 1, 0, 1, 1, 2, 0, 0, 0, 1, 0, 1, 1, 2,
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0, 1, 1, 0, 0, 1, 1, 2, 0, 1, 0, 0, 0, 1, 1, 2,
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0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1,
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0, 1, 0, 1, 1, 1, 3, 3, 0, 1, 1, 1, 1, 1, 3, 3 };
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for (vtkm::Id i = 0; i < component.GetNumberOfValues(); ++i)
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{
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VTKM_TEST_ASSERT(component.GetPortalConstControl().Get(i) == componentExpected[size_t(i)],
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"Components has unexpected value.");
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}
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}
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};
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int UnitTestImageConnectivity(int argc, char* argv[])
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{
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return vtkm::cont::testing::Testing::Run(TestImageConnectivity(), argc, argv);
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}
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