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https://gitlab.kitware.com/vtk/vtk-m
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1822792b85
`PointLocator`s have changed from being virtual objects to being trivial objects. Part of this change means that when a worklet gets the execution object for a point locator, it gets the actual object (or a reference to it) instead of a pointer to an object. This means that the new code uses the `.` operator to access the locator's features instead of the `->` operator. To support code still using the deprecated functionality, added a specific `->` operator to the locator execution object to make it behave as if it were a pointer. However, this operator is marked deprecated to warn the user that they should modify their code to use the `.` instead.
71 lines
2.0 KiB
C++
71 lines
2.0 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_exec_CellLocatorMultiplexer_h
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#define vtk_m_exec_CellLocatorMultiplexer_h
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#include <vtkm/ErrorCode.h>
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#include <vtkm/TypeList.h>
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#include <vtkm/exec/internal/Variant.h>
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namespace vtkm
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{
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namespace exec
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{
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namespace detail
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{
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struct FindCellFunctor
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{
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template <typename Locator>
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VTKM_EXEC vtkm::ErrorCode operator()(Locator&& locator,
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const vtkm::Vec3f& point,
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vtkm::Id& cellId,
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vtkm::Vec3f& parametric) const
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{
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return locator.FindCell(point, cellId, parametric);
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}
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};
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} // namespace detail
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template <typename... LocatorTypes>
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class VTKM_ALWAYS_EXPORT CellLocatorMultiplexer
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{
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vtkm::exec::internal::Variant<LocatorTypes...> Locators;
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public:
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CellLocatorMultiplexer() = default;
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template <typename Locator>
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VTKM_CONT CellLocatorMultiplexer(const Locator& locator)
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: Locators(locator)
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{
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}
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VTKM_EXEC vtkm::ErrorCode FindCell(const vtkm::Vec3f& point,
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vtkm::Id& cellId,
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vtkm::Vec3f& parametric) const
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{
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return this->Locators.CastAndCall(detail::FindCellFunctor{}, point, cellId, parametric);
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}
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VTKM_DEPRECATED(1.6, "Locators are no longer pointers. Use . operator.")
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VTKM_EXEC CellLocatorMultiplexer* operator->() { return this; }
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VTKM_DEPRECATED(1.6, "Locators are no longer pointers. Use . operator.")
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VTKM_EXEC const CellLocatorMultiplexer* operator->() const { return this; }
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};
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}
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} // namespace vtkm::exec
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#endif //vtk_m_exec_CellLocatorMultiplexer_h
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