mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-16 17:22:55 +00:00
3c1afe53dc
`UnknownArrayHandle` is supposed to treat `ArrayHandleRuntimeVec` the same as `ArrayHandleBasic`. However, the `NewInstance` methods were failing because they need custom handling of the vec size.
647 lines
19 KiB
C++
647 lines
19 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/UnknownArrayHandle.h>
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#include <vtkm/cont/ArrayHandleBasic.h>
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#include <vtkm/cont/ArrayHandleCartesianProduct.h>
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#include <vtkm/cont/ArrayHandleConstant.h>
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#include <vtkm/cont/ArrayHandleCounting.h>
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#include <vtkm/cont/ArrayHandleGroupVec.h>
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#include <vtkm/cont/ArrayHandleIndex.h>
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#include <vtkm/cont/ArrayHandlePermutation.h>
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#include <vtkm/cont/ArrayHandleReverse.h>
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#include <vtkm/cont/ArrayHandleRuntimeVec.h>
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#include <vtkm/cont/ArrayHandleSOA.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/ErrorInternal.h>
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#include <vtkm/cont/UncertainArrayHandle.h>
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#include <vtkm/cont/internal/ArrayCopyUnknown.h>
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#include <cstring>
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#include <sstream>
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namespace
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{
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template <vtkm::IdComponent N, typename ScalarList>
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struct AllVecImpl;
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template <vtkm::IdComponent N, typename... Scalars>
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struct AllVecImpl<N, vtkm::List<Scalars...>>
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{
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using type = vtkm::List<vtkm::Vec<Scalars, N>...>;
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};
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// Normally I would implement this with vtkm::ListTransform, but that is causing an ICE in GCC 4.8.
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// This implementation is not much different.
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template <vtkm::IdComponent N>
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using AllVec = typename AllVecImpl<N, vtkm::TypeListBaseC>::type;
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template <typename T>
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using IsBasicStorage = std::is_same<vtkm::cont::StorageTagBasic, T>;
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template <typename List>
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using RemoveBasicStorage = vtkm::ListRemoveIf<List, IsBasicStorage>;
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using UnknownSerializationTypes =
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vtkm::ListAppend<vtkm::TypeListBaseC, AllVec<2>, AllVec<3>, AllVec<4>>;
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using UnknownSerializationSpecializedStorage =
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vtkm::ListAppend<RemoveBasicStorage<VTKM_DEFAULT_STORAGE_LIST>,
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vtkm::List<vtkm::cont::StorageTagCartesianProduct<vtkm::cont::StorageTagBasic,
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vtkm::cont::StorageTagBasic,
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vtkm::cont::StorageTagBasic>,
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vtkm::cont::StorageTagConstant,
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vtkm::cont::StorageTagCounting,
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vtkm::cont::StorageTagIndex,
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vtkm::cont::StorageTagGroupVec<vtkm::cont::StorageTagBasic, 2>,
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vtkm::cont::StorageTagGroupVec<vtkm::cont::StorageTagBasic, 3>,
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vtkm::cont::StorageTagGroupVec<vtkm::cont::StorageTagBasic, 4>,
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vtkm::cont::StorageTagPermutation<vtkm::cont::StorageTagBasic,
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vtkm::cont::StorageTagBasic>,
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vtkm::cont::StorageTagReverse<vtkm::cont::StorageTagBasic>,
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vtkm::cont::StorageTagSOA,
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vtkm::cont::StorageTagUniformPoints>>;
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} // anonymous namespace
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namespace vtkm
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{
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namespace cont
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{
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namespace detail
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{
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std::shared_ptr<UnknownAHContainer> UnknownAHContainer::MakeNewInstance() const
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{
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// Start by doing an invalid copy to create a new container, then swap out the pointer
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// to the array handle to make sure that each object will delete its own ArrayHandle
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// when they get destroyed.
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std::shared_ptr<UnknownAHContainer> newContainer(new UnknownAHContainer(*this));
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newContainer->ArrayHandlePointer = this->NewInstance();
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return newContainer;
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}
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bool UnknownAHComponentInfo::operator==(const UnknownAHComponentInfo& rhs)
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{
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if (this->IsIntegral || this->IsFloat)
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{
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return ((this->IsIntegral == rhs.IsIntegral) && (this->IsFloat == rhs.IsFloat) &&
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(this->IsSigned == rhs.IsSigned) && (this->Size == rhs.Size));
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}
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else
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{
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// Needs optimization based on platform. OSX cannot compare typeid across translation units?
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bool typesEqual = (this->Type == rhs.Type);
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// Could use optimization based on platform. OSX cannot compare typeid across translation
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// units, so we have to also check the names. (Why doesn't the == operator above do that?)
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// Are there other platforms that behave similarly?
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if (!typesEqual)
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{
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typesEqual = (std::strcmp(this->Type.name(), rhs.Type.name()) == 0);
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}
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return typesEqual;
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}
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}
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} // namespace detail
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VTKM_CONT bool UnknownArrayHandle::IsValueTypeImpl(std::type_index type) const
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{
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if (!this->Container)
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{
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return false;
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}
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// Needs optimization based on platform. OSX cannot compare typeid across translation units?
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bool typesEqual = (this->Container->ValueType == type);
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// Could use optimization based on platform. OSX cannot compare typeid across translation
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// units, so we have to also check the names. (Why doesn't the == operator above do that?)
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// Are there other platforms that behave similarly?
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if (!typesEqual)
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{
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typesEqual = (std::strcmp(this->Container->ValueType.name(), type.name()) == 0);
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}
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return typesEqual;
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}
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VTKM_CONT bool UnknownArrayHandle::IsStorageTypeImpl(std::type_index type) const
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{
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if (!this->Container)
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{
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return false;
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}
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// Needs optimization based on platform. OSX cannot compare typeid across translation units?
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bool typesEqual = (this->Container->StorageType == type);
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// Could use optimization based on platform. OSX cannot compare typeid across translation
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// units, so we have to also check the names. (Why doesn't the == operator above do that?)
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// Are there other platforms that behave similarly?
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if (!typesEqual)
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{
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typesEqual = (std::strcmp(this->Container->StorageType.name(), type.name()) == 0);
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}
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return typesEqual;
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}
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VTKM_CONT bool UnknownArrayHandle::IsBaseComponentTypeImpl(
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const detail::UnknownAHComponentInfo& type) const
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{
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if (!this->Container)
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{
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return false;
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}
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// Note that detail::UnknownAHComponentInfo has a custom operator==
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return this->Container->BaseComponentType == type;
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}
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VTKM_CONT bool UnknownArrayHandle::IsValid() const
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{
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return static_cast<bool>(this->Container);
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}
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VTKM_CONT UnknownArrayHandle UnknownArrayHandle::NewInstance() const
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{
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if (this->IsStorageType<vtkm::cont::StorageTagRuntimeVec>())
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{
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// Special case for `ArrayHandleRuntimeVec`, which (1) can be used in place of
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// a basic array in `UnknownArrayHandle` and (2) needs a special construction to
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// capture the correct number of components. Also note that we are allowing this
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// special case to be implemented in `NewInstanceBasic` because it has a better
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// fallback (throw an exception rather than create a potentially incompatible
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// with the wrong number of components).
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return this->NewInstanceBasic();
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}
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UnknownArrayHandle newArray;
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if (this->Container)
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{
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newArray.Container = this->Container->MakeNewInstance();
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}
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return newArray;
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}
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VTKM_CONT UnknownArrayHandle UnknownArrayHandle::NewInstanceBasic() const
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{
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UnknownArrayHandle newArray;
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if (this->IsStorageType<vtkm::cont::StorageTagRuntimeVec>())
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{
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// Special case for `ArrayHandleRuntimeVec`, which (1) can be used in place of
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// a basic array in `UnknownArrayHandle` and (2) needs a special construction to
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// capture the correct number of components.
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auto runtimeVecArrayCreator = [&](auto exampleComponent) {
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using ComponentType = decltype(exampleComponent);
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if (this->IsBaseComponentType<ComponentType>())
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{
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newArray =
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vtkm::cont::make_ArrayHandleRuntimeVec<ComponentType>(this->GetNumberOfComponentsFlat());
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}
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};
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vtkm::ListForEach(runtimeVecArrayCreator, vtkm::TypeListBaseC{});
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if (newArray.IsValid())
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{
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return newArray;
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}
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}
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if (this->Container)
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{
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newArray.Container = this->Container->NewInstanceBasic();
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}
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return newArray;
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}
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VTKM_CONT UnknownArrayHandle UnknownArrayHandle::NewInstanceFloatBasic() const
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{
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if (this->IsStorageType<vtkm::cont::StorageTagRuntimeVec>())
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{
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// Special case for `ArrayHandleRuntimeVec`, which (1) can be used in place of
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// a basic array in `UnknownArrayHandle` and (2) needs a special construction to
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// capture the correct number of components.
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return vtkm::cont::make_ArrayHandleRuntimeVec<vtkm::FloatDefault>(
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this->GetNumberOfComponentsFlat());
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}
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UnknownArrayHandle newArray;
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if (this->Container)
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{
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newArray.Container = this->Container->NewInstanceFloatBasic();
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}
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return newArray;
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}
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VTKM_CONT std::string UnknownArrayHandle::GetValueTypeName() const
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{
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if (this->Container)
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{
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return vtkm::cont::TypeToString(this->Container->ValueType);
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}
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else
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{
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return "";
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}
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}
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VTKM_CONT std::string UnknownArrayHandle::GetBaseComponentTypeName() const
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{
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if (this->Container)
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{
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return vtkm::cont::TypeToString(this->Container->BaseComponentType);
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}
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else
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{
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return "";
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}
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}
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VTKM_CONT std::string UnknownArrayHandle::GetStorageTypeName() const
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{
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if (this->Container)
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{
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return vtkm::cont::TypeToString(this->Container->StorageType);
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}
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else
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{
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return "";
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}
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}
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VTKM_CONT std::string UnknownArrayHandle::GetArrayTypeName() const
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{
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if (this->Container)
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{
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return "vtkm::cont::ArrayHandle<" + this->GetValueTypeName() + ", " +
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this->GetStorageTypeName() + ">";
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}
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else
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{
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return "";
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}
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}
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VTKM_CONT vtkm::Id UnknownArrayHandle::GetNumberOfValues() const
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{
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if (this->Container)
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{
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return this->Container->NumberOfValues(this->Container->ArrayHandlePointer);
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}
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else
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{
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return 0;
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}
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}
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vtkm::IdComponent UnknownArrayHandle::GetNumberOfComponents() const
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{
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if (this->Container)
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{
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return this->Container->NumberOfComponents(this->Container->ArrayHandlePointer);
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}
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else
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{
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return 0;
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}
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}
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VTKM_CONT vtkm::IdComponent UnknownArrayHandle::GetNumberOfComponentsFlat() const
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{
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if (this->Container)
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{
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return this->Container->NumberOfComponentsFlat(this->Container->ArrayHandlePointer);
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}
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else
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{
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return 0;
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}
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}
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VTKM_CONT void UnknownArrayHandle::Allocate(vtkm::Id numValues,
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vtkm::CopyFlag preserve,
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vtkm::cont::Token& token) const
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{
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if (this->Container)
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{
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this->Container->Allocate(this->Container->ArrayHandlePointer, numValues, preserve, token);
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}
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else
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{
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throw vtkm::cont::ErrorBadAllocation(
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"Cannot allocate UnknownArrayHandle that does not contain an array.");
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}
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}
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VTKM_CONT void UnknownArrayHandle::Allocate(vtkm::Id numValues, vtkm::CopyFlag preserve) const
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{
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vtkm::cont::Token token;
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this->Allocate(numValues, preserve, token);
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}
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VTKM_CONT void UnknownArrayHandle::DeepCopyFrom(const vtkm::cont::UnknownArrayHandle& source)
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{
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if (!this->IsValid())
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{
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*this = source.NewInstance();
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}
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const_cast<const UnknownArrayHandle*>(this)->DeepCopyFrom(source);
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}
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VTKM_CONT void UnknownArrayHandle::DeepCopyFrom(const vtkm::cont::UnknownArrayHandle& source) const
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{
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if (!this->IsValid())
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{
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throw vtkm::cont::ErrorBadValue(
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"Attempty to copy to a constant UnknownArrayHandle with no valid array.");
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}
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if (source.IsValueTypeImpl(this->Container->ValueType) &&
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source.IsStorageTypeImpl(this->Container->StorageType))
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{
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this->Container->DeepCopy(source.Container->ArrayHandlePointer,
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this->Container->ArrayHandlePointer);
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}
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else
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{
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vtkm::cont::internal::ArrayCopyUnknown(source, *this);
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}
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}
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VTKM_CONT
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void UnknownArrayHandle::CopyShallowIfPossible(const vtkm::cont::UnknownArrayHandle& source)
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{
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if (!this->IsValid())
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{
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*this = source;
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}
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else
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{
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const_cast<const UnknownArrayHandle*>(this)->CopyShallowIfPossible(source);
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}
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}
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VTKM_CONT
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void UnknownArrayHandle::CopyShallowIfPossible(const vtkm::cont::UnknownArrayHandle& source) const
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{
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if (!this->IsValid())
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{
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throw vtkm::cont::ErrorBadValue(
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"Attempty to copy to a constant UnknownArrayHandle with no valid array.");
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}
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if (source.IsValueTypeImpl(this->Container->ValueType) &&
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source.IsStorageTypeImpl(this->Container->StorageType))
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{
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this->Container->ShallowCopy(source.Container->ArrayHandlePointer,
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this->Container->ArrayHandlePointer);
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}
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else
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{
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vtkm::cont::internal::ArrayCopyUnknown(source, *this);
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}
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}
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VTKM_CONT void UnknownArrayHandle::ReleaseResourcesExecution() const
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{
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if (this->Container)
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{
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this->Container->ReleaseResourcesExecution(this->Container->ArrayHandlePointer);
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}
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}
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VTKM_CONT void UnknownArrayHandle::ReleaseResources() const
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{
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if (this->Container)
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{
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this->Container->ReleaseResources(this->Container->ArrayHandlePointer);
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}
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}
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VTKM_CONT void UnknownArrayHandle::PrintSummary(std::ostream& out, bool full) const
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{
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if (this->Container)
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{
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this->Container->PrintSummary(this->Container->ArrayHandlePointer, out, full);
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}
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else
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{
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out << "null UnknownArrayHandle" << std::endl;
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}
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}
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namespace internal
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{
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VTKM_CONT_EXPORT void ThrowCastAndCallException(const vtkm::cont::UnknownArrayHandle& ref,
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const std::type_info& type)
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{
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std::ostringstream out;
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out << "Could not find appropriate cast for array in CastAndCall.\n"
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"Array: ";
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ref.PrintSummary(out);
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out << "TypeList: " << vtkm::cont::TypeToString(type) << "\n";
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throw vtkm::cont::ErrorBadType(out.str());
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}
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} // namespace internal
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}
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} // namespace vtkm::cont
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//=============================================================================
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// Specializations of serialization related classes
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namespace vtkm
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{
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namespace cont
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{
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std::string SerializableTypeString<vtkm::cont::UnknownArrayHandle>::Get()
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{
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return "UnknownAH";
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}
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}
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} // namespace vtkm::cont
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namespace
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{
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enum struct SerializedArrayType : vtkm::UInt8
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{
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BasicArray = 0,
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SpecializedStorage
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};
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struct SaveBasicArray
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{
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template <typename ComponentType>
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VTKM_CONT void operator()(ComponentType,
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mangled_diy_namespace::BinaryBuffer& bb,
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const vtkm::cont::UnknownArrayHandle& obj,
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bool& saved)
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{
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// Basic arrays and arrays with compatible layouts can be loaed/saved as an
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// ArrayHandleRuntimeVec. Thus, we can load/save them all with one routine.
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using ArrayType = vtkm::cont::ArrayHandleRuntimeVec<ComponentType>;
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if (!saved && obj.CanConvert<ArrayType>())
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{
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ArrayType array = obj.AsArrayHandle<ArrayType>();
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vtkmdiy::save(bb, SerializedArrayType::BasicArray);
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vtkmdiy::save(bb, vtkm::cont::TypeToString<ComponentType>());
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vtkmdiy::save(bb, array);
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saved = true;
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}
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}
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};
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struct LoadBasicArray
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{
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template <typename ComponentType>
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VTKM_CONT void operator()(ComponentType,
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mangled_diy_namespace::BinaryBuffer& bb,
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vtkm::cont::UnknownArrayHandle& obj,
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const std::string& componentTypeString,
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bool& loaded)
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{
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if (!loaded && (componentTypeString == vtkm::cont::TypeToString<ComponentType>()))
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{
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vtkm::cont::ArrayHandleRuntimeVec<ComponentType> array;
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vtkmdiy::load(bb, array);
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obj = array;
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loaded = true;
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}
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}
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};
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VTKM_CONT void SaveSpecializedArray(mangled_diy_namespace::BinaryBuffer& bb,
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const vtkm::cont::UnknownArrayHandle& obj)
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{
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vtkm::IdComponent numComponents = obj.GetNumberOfComponents();
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switch (numComponents)
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{
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case 1:
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vtkmdiy::save(bb, SerializedArrayType::SpecializedStorage);
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vtkmdiy::save(bb, numComponents);
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vtkmdiy::save(bb,
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obj.ResetTypes<vtkm::TypeListBaseC, UnknownSerializationSpecializedStorage>());
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break;
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case 2:
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vtkmdiy::save(bb, SerializedArrayType::SpecializedStorage);
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vtkmdiy::save(bb, numComponents);
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vtkmdiy::save(bb, obj.ResetTypes<AllVec<2>, UnknownSerializationSpecializedStorage>());
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break;
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case 3:
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vtkmdiy::save(bb, SerializedArrayType::SpecializedStorage);
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vtkmdiy::save(bb, numComponents);
|
|
vtkmdiy::save(bb, obj.ResetTypes<AllVec<3>, UnknownSerializationSpecializedStorage>());
|
|
break;
|
|
case 4:
|
|
vtkmdiy::save(bb, SerializedArrayType::SpecializedStorage);
|
|
vtkmdiy::save(bb, numComponents);
|
|
vtkmdiy::save(bb, obj.ResetTypes<AllVec<4>, UnknownSerializationSpecializedStorage>());
|
|
break;
|
|
default:
|
|
throw vtkm::cont::ErrorBadType(
|
|
"Vectors of size " + std::to_string(numComponents) +
|
|
" are not supported for serialization from UnknownArrayHandle. "
|
|
"Try narrowing down possible types with UncertainArrayHandle.");
|
|
}
|
|
}
|
|
|
|
VTKM_CONT void LoadSpecializedArray(mangled_diy_namespace::BinaryBuffer& bb,
|
|
vtkm::cont::UnknownArrayHandle& obj)
|
|
{
|
|
vtkm::IdComponent numComponents;
|
|
vtkmdiy::load(bb, numComponents);
|
|
|
|
vtkm::cont::UncertainArrayHandle<vtkm::TypeListBaseC, UnknownSerializationSpecializedStorage>
|
|
array1;
|
|
vtkm::cont::UncertainArrayHandle<AllVec<2>, UnknownSerializationSpecializedStorage> array2;
|
|
vtkm::cont::UncertainArrayHandle<AllVec<3>, UnknownSerializationSpecializedStorage> array3;
|
|
vtkm::cont::UncertainArrayHandle<AllVec<4>, UnknownSerializationSpecializedStorage> array4;
|
|
|
|
switch (numComponents)
|
|
{
|
|
case 1:
|
|
vtkmdiy::load(bb, array1);
|
|
obj = array1;
|
|
break;
|
|
case 2:
|
|
vtkmdiy::load(bb, array2);
|
|
obj = array2;
|
|
break;
|
|
case 3:
|
|
vtkmdiy::load(bb, array3);
|
|
obj = array3;
|
|
break;
|
|
case 4:
|
|
vtkmdiy::load(bb, array4);
|
|
obj = array4;
|
|
break;
|
|
default:
|
|
throw vtkm::cont::ErrorInternal("Unexpected component size when loading UnknownArrayHandle.");
|
|
}
|
|
}
|
|
|
|
} // anonymous namespace
|
|
|
|
namespace mangled_diy_namespace
|
|
{
|
|
|
|
void Serialization<vtkm::cont::UnknownArrayHandle>::save(BinaryBuffer& bb,
|
|
const vtkm::cont::UnknownArrayHandle& obj)
|
|
{
|
|
bool saved = false;
|
|
|
|
// First, try serializing basic arrays (which we can do for any Vec size).
|
|
vtkm::ListForEach(SaveBasicArray{}, vtkm::TypeListBaseC{}, bb, obj, saved);
|
|
|
|
// If that did not work, try one of the specialized arrays.
|
|
if (!saved)
|
|
{
|
|
SaveSpecializedArray(bb, obj);
|
|
}
|
|
}
|
|
|
|
void Serialization<vtkm::cont::UnknownArrayHandle>::load(BinaryBuffer& bb,
|
|
vtkm::cont::UnknownArrayHandle& obj)
|
|
{
|
|
SerializedArrayType arrayType;
|
|
vtkmdiy::load(bb, arrayType);
|
|
|
|
switch (arrayType)
|
|
{
|
|
case SerializedArrayType::BasicArray:
|
|
{
|
|
std::string componentTypeString;
|
|
vtkmdiy::load(bb, componentTypeString);
|
|
bool loaded = false;
|
|
vtkm::ListForEach(
|
|
LoadBasicArray{}, vtkm::TypeListBaseC{}, bb, obj, componentTypeString, loaded);
|
|
if (!loaded)
|
|
{
|
|
throw vtkm::cont::ErrorInternal("Failed to load basic array. Unexpected buffer values.");
|
|
}
|
|
break;
|
|
}
|
|
case SerializedArrayType::SpecializedStorage:
|
|
LoadSpecializedArray(bb, obj);
|
|
break;
|
|
default:
|
|
throw vtkm::cont::ErrorInternal("Got inappropriate enumeration value for loading array.");
|
|
}
|
|
}
|
|
|
|
} // namespace mangled_diy_namespace
|