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https://gitlab.kitware.com/vtk/vtk-m
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3e1339f9a7
With the major revision 2.0 of VTK-m, many items previously marked as deprecated were removed. If updating to a new version of VTK-m, it is recommended to first update to VTK-m 1.9, which will include the deprecated features but provide warnings (with the right compiler) that will point to the replacement code. Once the deprecations have been fixed, updating to 2.0 should be smoother.
60 lines
2.1 KiB
C++
60 lines
2.1 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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#ifndef vtk_m_CellClassification_h
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#define vtk_m_CellClassification_h
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#include <vtkm/Types.h>
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namespace vtkm
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{
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/// \brief Bit flags used in ghost arrays to identify what type a cell is.
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///
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/// `CellClassification` contains several bit flags that determine whether a cell is
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/// normal or if it should be treated as duplicated or removed in some way. The flags
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/// can be (and should be) treated as `vtkm::UInt8` and or-ed together.
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///
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class CellClassification
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{
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// Implementation note: An enum would be a natural representation for these flags.
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// However, a non-scoped enum leaks the names into the broader namespace and a
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// scoped enum is too difficult to convert to the `vtkm::UInt8` we really want to
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// treat it as. Thus, use constexpr to define the `vtkm::UInt8`s.
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vtkm::UInt8 Flags;
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public:
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// Use an unscoped enum here, where it will be properly scoped in the class.
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// Using unscoped enums in this way is sort of obsolete, but prior to C++17
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// a `static constexpr` may require a definition in a .cxx file, and that is
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// not really possible for this particular class (which could be used on a GPU).
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enum : vtkm::UInt8
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{
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Normal = 0, //Valid cell
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Ghost = 1 << 0, //Ghost cell
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Invalid = 1 << 1, //Cell is invalid
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Unused0 = 1 << 2,
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Blanked = 1 << 3, //Blanked cell in AMR
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Unused3 = 1 << 4,
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Unused4 = 1 << 5,
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Unused5 = 1 << 6,
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};
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VTKM_EXEC constexpr CellClassification(vtkm::UInt8 flags = vtkm::UInt8{ Normal })
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: Flags(flags)
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{
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}
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VTKM_EXEC constexpr operator vtkm::UInt8() const { return this->Flags; }
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};
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} // namespace vtkm
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#endif // vtk_m_CellClassification_h
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