3445047f9e
ArrayHandleVirtual can automatically be constructed from any ArrayHandle. In the cases where the input ArrayHandle doesn't derived from ArrayHandleVirtual, it will automatically construct StorageAny to hold the array.
188 lines
6.3 KiB
C++
188 lines
6.3 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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// 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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// Copyright 2014 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2014 UT-Battelle, LLC.
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// Copyright 2014 Los Alamos National Security.
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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//
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//============================================================================
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#ifndef vtk_m_cont_ArrayHandleVirtualCoordinates_h
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#define vtk_m_cont_ArrayHandleVirtualCoordinates_h
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#include <vtkm/cont/ArrayHandleVirtual.h>
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#include <vtkm/cont/ArrayHandleCartesianProduct.h>
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#include <vtkm/cont/ArrayHandleCast.h>
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#include <vtkm/cont/ArrayHandleUniformPointCoordinates.h>
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#include <vtkm/cont/ErrorBadType.h>
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#include <vtkm/cont/Logging.h>
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#include <vtkm/cont/TryExecute.h>
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#include <memory>
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#include <type_traits>
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namespace vtkm
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{
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namespace cont
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{
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/// ArrayHandleVirtualCoordinates is a specialization of ArrayHandle.
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class VTKM_ALWAYS_EXPORT ArrayHandleVirtualCoordinates final
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: public vtkm::cont::ArrayHandleVirtual<vtkm::Vec<vtkm::FloatDefault, 3>>
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{
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public:
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using ValueType = vtkm::Vec<vtkm::FloatDefault, 3>;
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using StorageTag = vtkm::cont::StorageTagVirtual;
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using NonDefaultCoord = typename std::conditional<std::is_same<vtkm::FloatDefault, float>::value,
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vtkm::Vec<double, 3>,
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vtkm::Vec<float, 3>>::type;
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ArrayHandleVirtualCoordinates()
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: vtkm::cont::ArrayHandleVirtual<ValueType>()
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{
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}
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explicit ArrayHandleVirtualCoordinates(
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const vtkm::cont::ArrayHandle<ValueType, vtkm::cont::StorageTagVirtual>& ah)
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: vtkm::cont::ArrayHandleVirtual<ValueType>(ah)
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{
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}
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template <typename S>
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explicit ArrayHandleVirtualCoordinates(const vtkm::cont::ArrayHandle<ValueType, S>& ah)
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: vtkm::cont::ArrayHandleVirtual<ValueType>(ah)
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{
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}
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template <typename S>
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explicit ArrayHandleVirtualCoordinates(const vtkm::cont::ArrayHandle<NonDefaultCoord, S>& ah)
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: vtkm::cont::ArrayHandleVirtual<ValueType>()
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{
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auto castedHandle = vtkm::cont::make_ArrayHandleCast<ValueType>(ah);
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using ST = typename decltype(castedHandle)::StorageTag;
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this->Storage = std::make_shared<vtkm::cont::StorageAny<ValueType, ST>>(castedHandle);
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}
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};
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template <typename Functor, typename... Args>
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void CastAndCall(const vtkm::cont::ArrayHandleVirtualCoordinates& coords,
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Functor&& f,
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Args&&... args)
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{
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using HandleType = ArrayHandleUniformPointCoordinates;
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if (coords.IsType<HandleType>())
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{
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HandleType uniform = coords.Cast<HandleType>();
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f(uniform, std::forward<Args>(args)...);
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}
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else
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{
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f(coords, std::forward<Args>(args)...);
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}
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}
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template <>
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struct TypeString<vtkm::cont::ArrayHandleVirtualCoordinates>
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{
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static VTKM_CONT const std::string Get() { return "AH_VirtualCoordinates"; }
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};
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} // namespace cont
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} // namespace vtkm
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//=============================================================================
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// Specializations of serialization related classes
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namespace diy
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{
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template <>
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struct Serialization<vtkm::cont::ArrayHandleVirtualCoordinates>
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{
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private:
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using Type = vtkm::cont::ArrayHandleVirtualCoordinates;
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using BaseType = vtkm::cont::ArrayHandle<typename Type::ValueType, typename Type::StorageTag>;
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using BasicCoordsType = vtkm::cont::ArrayHandle<vtkm::Vec<vtkm::FloatDefault, 3>>;
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using RectilinearCoordsArrayType =
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vtkm::cont::ArrayHandleCartesianProduct<vtkm::cont::ArrayHandle<vtkm::FloatDefault>,
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vtkm::cont::ArrayHandle<vtkm::FloatDefault>,
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vtkm::cont::ArrayHandle<vtkm::FloatDefault>>;
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public:
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static VTKM_CONT void save(BinaryBuffer& bb, const BaseType& obj)
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{
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const vtkm::cont::StorageVirtual* storage = obj.GetStorage();
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if (obj.IsType<vtkm::cont::ArrayHandleUniformPointCoordinates>())
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{
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using HandleType = vtkm::cont::ArrayHandleUniformPointCoordinates;
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using T = typename HandleType::ValueType;
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using S = typename HandleType::StorageTag;
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auto array = storage->Cast<vtkm::cont::StorageAny<T, S>>();
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diy::save(bb, vtkm::cont::TypeString<HandleType>::Get());
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diy::save(bb, array->GetHandle());
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}
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else if (obj.IsType<RectilinearCoordsArrayType>())
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{
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using HandleType = RectilinearCoordsArrayType;
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using T = typename HandleType::ValueType;
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using S = typename HandleType::StorageTag;
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auto array = storage->Cast<vtkm::cont::StorageAny<T, S>>();
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diy::save(bb, vtkm::cont::TypeString<HandleType>::Get());
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diy::save(bb, array->GetHandle());
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}
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else
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{
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diy::save(bb, vtkm::cont::TypeString<BasicCoordsType>::Get());
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vtkm::cont::internal::ArrayHandleDefaultSerialization(bb, obj);
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}
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}
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static VTKM_CONT void load(BinaryBuffer& bb, BaseType& obj)
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{
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std::string typeString;
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diy::load(bb, typeString);
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if (typeString == vtkm::cont::TypeString<vtkm::cont::ArrayHandleUniformPointCoordinates>::Get())
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{
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vtkm::cont::ArrayHandleUniformPointCoordinates array;
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diy::load(bb, array);
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obj = vtkm::cont::ArrayHandleVirtualCoordinates(array);
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}
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else if (typeString == vtkm::cont::TypeString<RectilinearCoordsArrayType>::Get())
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{
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RectilinearCoordsArrayType array;
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diy::load(bb, array);
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obj = vtkm::cont::ArrayHandleVirtualCoordinates(array);
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}
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else if (typeString == vtkm::cont::TypeString<BasicCoordsType>::Get())
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{
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BasicCoordsType array;
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diy::load(bb, array);
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obj = vtkm::cont::ArrayHandleVirtualCoordinates(array);
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}
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else
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{
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throw vtkm::cont::ErrorBadType(
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"Error deserializing ArrayHandleVirtualCoordinates. TypeString: " + typeString);
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}
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}
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};
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} // diy
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#endif // vtk_m_cont_ArrayHandleVirtualCoordinates_h
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