mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-08 21:33:55 +00:00
5ef4e7eeee
What was previously declared as `ArrayHandleNewStyle` is now just the implementation of `ArrayHandle`. The old implementation of `ArrayHandle` has been moved to `ArrayHandleDeprecated`, and `ArrayHandle`s still using this implementation must declare `VTKM_ARRAY_HANDLE_DEPRECATED` to use it.
532 lines
19 KiB
C++
532 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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#ifndef vtk_m_cont_ArrayHandleCartesianProduct_h
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#define vtk_m_cont_ArrayHandleCartesianProduct_h
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#include <vtkm/Assert.h>
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#include <vtkm/cont/ArrayExtractComponent.h>
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#include <vtkm/cont/ArrayHandle.h>
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#include <vtkm/cont/ErrorBadAllocation.h>
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#include <vtkm/cont/Token.h>
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namespace vtkm
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{
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namespace internal
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{
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/// \brief An array portal that acts as a 3D cartesian product of 3 arrays.
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///
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template <typename ValueType_,
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typename PortalTypeFirst_,
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typename PortalTypeSecond_,
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typename PortalTypeThird_>
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class VTKM_ALWAYS_EXPORT ArrayPortalCartesianProduct
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{
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public:
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using ValueType = ValueType_;
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using IteratorType = ValueType_;
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using PortalTypeFirst = PortalTypeFirst_;
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using PortalTypeSecond = PortalTypeSecond_;
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using PortalTypeThird = PortalTypeThird_;
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using set_supported_p1 = vtkm::internal::PortalSupportsSets<PortalTypeFirst>;
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using set_supported_p2 = vtkm::internal::PortalSupportsSets<PortalTypeSecond>;
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using set_supported_p3 = vtkm::internal::PortalSupportsSets<PortalTypeThird>;
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using Writable = std::integral_constant<bool,
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set_supported_p1::value && set_supported_p2::value &&
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set_supported_p3::value>;
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VTKM_SUPPRESS_EXEC_WARNINGS
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VTKM_EXEC_CONT
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ArrayPortalCartesianProduct()
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: PortalFirst()
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, PortalSecond()
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, PortalThird()
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{
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} //needs to be host and device so that cuda can create lvalue of these
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VTKM_CONT
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ArrayPortalCartesianProduct(const PortalTypeFirst& portalfirst,
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const PortalTypeSecond& portalsecond,
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const PortalTypeThird& portalthird)
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: PortalFirst(portalfirst)
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, PortalSecond(portalsecond)
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, PortalThird(portalthird)
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{
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}
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/// Copy constructor for any other ArrayPortalCartesianProduct with an iterator
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/// type that can be copied to this iterator type. This allows us to do any
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/// type casting that the iterators do (like the non-const to const cast).
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///
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template <class OtherV, class OtherP1, class OtherP2, class OtherP3>
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VTKM_CONT ArrayPortalCartesianProduct(
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const ArrayPortalCartesianProduct<OtherV, OtherP1, OtherP2, OtherP3>& src)
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: PortalFirst(src.GetPortalFirst())
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, PortalSecond(src.GetPortalSecond())
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, PortalThird(src.GetPortalThird())
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{
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}
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VTKM_SUPPRESS_EXEC_WARNINGS
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VTKM_EXEC_CONT
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vtkm::Id GetNumberOfValues() const
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{
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return this->PortalFirst.GetNumberOfValues() * this->PortalSecond.GetNumberOfValues() *
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this->PortalThird.GetNumberOfValues();
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}
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VTKM_SUPPRESS_EXEC_WARNINGS
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VTKM_EXEC_CONT
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ValueType Get(vtkm::Id index) const
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{
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VTKM_ASSERT(index >= 0);
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VTKM_ASSERT(index < this->GetNumberOfValues());
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vtkm::Id dim1 = this->PortalFirst.GetNumberOfValues();
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vtkm::Id dim2 = this->PortalSecond.GetNumberOfValues();
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vtkm::Id dim12 = dim1 * dim2;
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vtkm::Id idx12 = index % dim12;
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vtkm::Id i1 = idx12 % dim1;
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vtkm::Id i2 = idx12 / dim1;
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vtkm::Id i3 = index / dim12;
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return vtkm::make_Vec(
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this->PortalFirst.Get(i1), this->PortalSecond.Get(i2), this->PortalThird.Get(i3));
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}
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VTKM_SUPPRESS_EXEC_WARNINGS
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template <typename Writable_ = Writable,
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typename = typename std::enable_if<Writable_::value>::type>
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VTKM_EXEC_CONT void Set(vtkm::Id index, const ValueType& value) const
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{
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VTKM_ASSERT(index >= 0);
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VTKM_ASSERT(index < this->GetNumberOfValues());
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vtkm::Id dim1 = this->PortalFirst.GetNumberOfValues();
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vtkm::Id dim2 = this->PortalSecond.GetNumberOfValues();
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vtkm::Id dim12 = dim1 * dim2;
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vtkm::Id idx12 = index % dim12;
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vtkm::Id i1 = idx12 % dim1;
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vtkm::Id i2 = idx12 / dim1;
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vtkm::Id i3 = index / dim12;
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this->PortalFirst.Set(i1, value[0]);
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this->PortalSecond.Set(i2, value[1]);
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this->PortalThird.Set(i3, value[2]);
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}
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VTKM_SUPPRESS_EXEC_WARNINGS
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VTKM_EXEC_CONT
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const PortalTypeFirst& GetFirstPortal() const { return this->PortalFirst; }
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VTKM_SUPPRESS_EXEC_WARNINGS
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VTKM_EXEC_CONT
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const PortalTypeSecond& GetSecondPortal() const { return this->PortalSecond; }
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VTKM_SUPPRESS_EXEC_WARNINGS
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VTKM_EXEC_CONT
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const PortalTypeThird& GetThirdPortal() const { return this->PortalThird; }
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private:
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PortalTypeFirst PortalFirst;
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PortalTypeSecond PortalSecond;
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PortalTypeThird PortalThird;
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};
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}
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} // namespace vtkm::internal
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namespace vtkm
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{
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namespace cont
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{
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template <typename StorageTag1, typename StorageTag2, typename StorageTag3>
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struct VTKM_ALWAYS_EXPORT StorageTagCartesianProduct
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{
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};
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namespace internal
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{
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/// This helper struct defines the value type for a zip container containing
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/// the given two array handles.
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///
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template <typename AH1, typename AH2, typename AH3>
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struct ArrayHandleCartesianProductTraits
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{
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VTKM_IS_ARRAY_HANDLE(AH1);
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VTKM_IS_ARRAY_HANDLE(AH2);
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VTKM_IS_ARRAY_HANDLE(AH3);
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using ComponentType = typename AH1::ValueType;
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VTKM_STATIC_ASSERT_MSG(
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(std::is_same<ComponentType, typename AH2::ValueType>::value),
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"All arrays for ArrayHandleCartesianProduct must have the same value type. "
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"Use ArrayHandleCast as necessary to make types match.");
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VTKM_STATIC_ASSERT_MSG(
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(std::is_same<ComponentType, typename AH3::ValueType>::value),
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"All arrays for ArrayHandleCartesianProduct must have the same value type. "
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"Use ArrayHandleCast as necessary to make types match.");
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/// The ValueType (a pair containing the value types of the two arrays).
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///
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using ValueType = vtkm::Vec<ComponentType, 3>;
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/// The appropriately templated tag.
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///
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using Tag = vtkm::cont::StorageTagCartesianProduct<typename AH1::StorageTag,
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typename AH2::StorageTag,
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typename AH3::StorageTag>;
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/// The superclass for ArrayHandleCartesianProduct.
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///
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using Superclass = vtkm::cont::ArrayHandle<ValueType, Tag>;
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};
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template <typename T, typename ST1, typename ST2, typename ST3>
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class Storage<vtkm::Vec<T, 3>, vtkm::cont::StorageTagCartesianProduct<ST1, ST2, ST3>>
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{
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using Storage1 = vtkm::cont::internal::Storage<T, ST1>;
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using Storage2 = vtkm::cont::internal::Storage<T, ST2>;
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using Storage3 = vtkm::cont::internal::Storage<T, ST3>;
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template <typename Buffs>
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VTKM_CONT constexpr static Buffs* Buffers1(Buffs* buffers)
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{
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return buffers;
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}
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template <typename Buffs>
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VTKM_CONT constexpr static Buffs* Buffers2(Buffs* buffers)
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{
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return buffers + Storage1::GetNumberOfBuffers();
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}
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template <typename Buffs>
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VTKM_CONT constexpr static Buffs* Buffers3(Buffs* buffers)
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{
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return buffers + Storage1::GetNumberOfBuffers() + Storage2::GetNumberOfBuffers();
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}
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public:
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VTKM_STORAGE_NO_RESIZE;
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using ReadPortalType =
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vtkm::internal::ArrayPortalCartesianProduct<vtkm::Vec<T, 3>,
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typename Storage1::ReadPortalType,
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typename Storage2::ReadPortalType,
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typename Storage3::ReadPortalType>;
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using WritePortalType =
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vtkm::internal::ArrayPortalCartesianProduct<vtkm::Vec<T, 3>,
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typename Storage1::WritePortalType,
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typename Storage2::WritePortalType,
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typename Storage3::WritePortalType>;
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VTKM_CONT constexpr static vtkm::IdComponent GetNumberOfBuffers()
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{
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return Storage1::GetNumberOfBuffers() + Storage2::GetNumberOfBuffers() +
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Storage3::GetNumberOfBuffers();
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}
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VTKM_CONT static vtkm::Id GetNumberOfValues(const vtkm::cont::internal::Buffer* buffers)
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{
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return (Storage1::GetNumberOfValues(Buffers1(buffers)) *
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Storage2::GetNumberOfValues(Buffers2(buffers)) *
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Storage3::GetNumberOfValues(Buffers3(buffers)));
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}
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VTKM_CONT static ReadPortalType CreateReadPortal(const vtkm::cont::internal::Buffer* buffers,
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vtkm::cont::DeviceAdapterId device,
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vtkm::cont::Token& token)
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{
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return ReadPortalType(Storage1::CreateReadPortal(Buffers1(buffers), device, token),
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Storage2::CreateReadPortal(Buffers2(buffers), device, token),
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Storage3::CreateReadPortal(Buffers3(buffers), device, token));
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}
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VTKM_CONT static WritePortalType CreateWritePortal(vtkm::cont::internal::Buffer* buffers,
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vtkm::cont::DeviceAdapterId device,
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vtkm::cont::Token& token)
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{
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return WritePortalType(Storage1::CreateWritePortal(Buffers1(buffers), device, token),
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Storage2::CreateWritePortal(Buffers2(buffers), device, token),
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Storage3::CreateWritePortal(Buffers3(buffers), device, token));
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}
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VTKM_CONT static vtkm::cont::ArrayHandle<T, ST1> GetArrayHandle1(
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const vtkm::cont::internal::Buffer* buffers)
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{
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return vtkm::cont::ArrayHandle<T, ST1>(Buffers1(buffers));
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}
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VTKM_CONT static vtkm::cont::ArrayHandle<T, ST2> GetArrayHandle2(
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const vtkm::cont::internal::Buffer* buffers)
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{
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return vtkm::cont::ArrayHandle<T, ST2>(Buffers2(buffers));
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}
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VTKM_CONT static vtkm::cont::ArrayHandle<T, ST3> GetArrayHandle3(
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const vtkm::cont::internal::Buffer* buffers)
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{
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return vtkm::cont::ArrayHandle<T, ST3>(Buffers3(buffers));
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}
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};
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} // namespace internal
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/// ArrayHandleCartesianProduct is a specialization of ArrayHandle. It takes two delegate
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/// array handle and makes a new handle that access the corresponding entries
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/// in these arrays as a pair.
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///
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template <typename FirstHandleType, typename SecondHandleType, typename ThirdHandleType>
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class ArrayHandleCartesianProduct
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: public internal::ArrayHandleCartesianProductTraits<FirstHandleType,
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SecondHandleType,
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ThirdHandleType>::Superclass
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{
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// If the following line gives a compile error, then the FirstHandleType
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// template argument is not a valid ArrayHandle type.
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VTKM_IS_ARRAY_HANDLE(FirstHandleType);
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VTKM_IS_ARRAY_HANDLE(SecondHandleType);
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VTKM_IS_ARRAY_HANDLE(ThirdHandleType);
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public:
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VTKM_ARRAY_HANDLE_SUBCLASS(
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ArrayHandleCartesianProduct,
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(ArrayHandleCartesianProduct<FirstHandleType, SecondHandleType, ThirdHandleType>),
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(typename internal::ArrayHandleCartesianProductTraits<FirstHandleType,
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SecondHandleType,
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ThirdHandleType>::Superclass));
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private:
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using StorageType = vtkm::cont::internal::Storage<ValueType, StorageTag>;
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public:
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VTKM_CONT
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ArrayHandleCartesianProduct(const FirstHandleType& firstArray,
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const SecondHandleType& secondArray,
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const ThirdHandleType& thirdArray)
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: Superclass(vtkm::cont::internal::CreateBuffers(firstArray, secondArray, thirdArray))
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{
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}
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/// Implemented so that it is defined exclusively in the control environment.
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/// If there is a separate device for the execution environment (for example,
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/// with CUDA), then the automatically generated destructor could be
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/// created for all devices, and it would not be valid for all devices.
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///
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~ArrayHandleCartesianProduct() {}
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VTKM_CONT FirstHandleType GetFirstArray() const
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{
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return StorageType::GetArrayHandle1(this->GetBuffers());
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}
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VTKM_CONT SecondHandleType GetSecondArray() const
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{
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return StorageType::GetArrayHandle2(this->GetBuffers());
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}
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VTKM_CONT ThirdHandleType GetThirdArray() const
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{
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return StorageType::GetArrayHandle3(this->GetBuffers());
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}
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};
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/// A convenience function for creating an ArrayHandleCartesianProduct. It takes the two
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/// arrays to be zipped together.
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///
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template <typename FirstHandleType, typename SecondHandleType, typename ThirdHandleType>
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VTKM_CONT
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vtkm::cont::ArrayHandleCartesianProduct<FirstHandleType, SecondHandleType, ThirdHandleType>
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make_ArrayHandleCartesianProduct(const FirstHandleType& first,
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const SecondHandleType& second,
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const ThirdHandleType& third)
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{
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return ArrayHandleCartesianProduct<FirstHandleType, SecondHandleType, ThirdHandleType>(
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first, second, third);
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}
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//--------------------------------------------------------------------------------
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// Specialization of ArrayExtractComponent
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namespace internal
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{
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template <typename... STs>
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struct ArrayExtractComponentImpl<vtkm::cont::StorageTagCartesianProduct<STs...>>
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{
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template <typename T>
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vtkm::cont::ArrayHandleStride<T> AdjustStrideForComponent(
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const vtkm::cont::ArrayHandleStride<T>& componentArray,
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const vtkm::Id3& dims,
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vtkm::IdComponent component,
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vtkm::Id totalNumValues) const
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{
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VTKM_ASSERT(componentArray.GetModulo() == 0);
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VTKM_ASSERT(componentArray.GetDivisor() == 1);
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vtkm::Id modulo = 0;
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if (component < 2)
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{
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modulo = dims[component];
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}
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vtkm::Id divisor = 1;
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for (vtkm::IdComponent c = 0; c < component; ++c)
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{
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divisor *= dims[c];
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}
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return vtkm::cont::ArrayHandleStride<T>(componentArray.GetBasicArray(),
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totalNumValues,
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componentArray.GetStride(),
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componentArray.GetOffset(),
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modulo,
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divisor);
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}
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template <typename T, typename ST, typename CartesianArrayType>
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vtkm::cont::ArrayHandleStride<typename vtkm::VecTraits<T>::BaseComponentType>
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GetStrideForComponentArray(const vtkm::cont::ArrayHandle<T, ST>& componentArray,
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const CartesianArrayType& cartesianArray,
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vtkm::IdComponent subIndex,
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vtkm::IdComponent productIndex,
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vtkm::CopyFlag allowCopy) const
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{
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vtkm::cont::ArrayHandleStride<typename vtkm::VecTraits<T>::BaseComponentType> strideArray =
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ArrayExtractComponentImpl<ST>{}(componentArray, subIndex, allowCopy);
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if ((strideArray.GetModulo() != 0) || (strideArray.GetDivisor() != 1))
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{
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// If the sub array has its own modulo and/or divisor, that will likely interfere
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// with this math. Give up and fall back to simple copy.
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constexpr vtkm::IdComponent NUM_SUB_COMPONENTS = vtkm::VecFlat<T>::NUM_COMPONENTS;
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return vtkm::cont::internal::ArrayExtractComponentFallback(
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cartesianArray, (productIndex * NUM_SUB_COMPONENTS) + subIndex, allowCopy);
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}
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vtkm::Id3 dims = { cartesianArray.GetFirstArray().GetNumberOfValues(),
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cartesianArray.GetSecondArray().GetNumberOfValues(),
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cartesianArray.GetThirdArray().GetNumberOfValues() };
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return this->AdjustStrideForComponent(
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strideArray, dims, productIndex, cartesianArray.GetNumberOfValues());
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}
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template <typename T>
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vtkm::cont::ArrayHandleStride<typename vtkm::VecTraits<T>::BaseComponentType> operator()(
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const vtkm::cont::ArrayHandle<vtkm::Vec<T, 3>, vtkm::cont::StorageTagCartesianProduct<STs...>>&
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src,
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vtkm::IdComponent componentIndex,
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vtkm::CopyFlag allowCopy) const
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{
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vtkm::cont::ArrayHandleCartesianProduct<vtkm::cont::ArrayHandle<T, STs>...> array(src);
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constexpr vtkm::IdComponent NUM_SUB_COMPONENTS = vtkm::VecFlat<T>::NUM_COMPONENTS;
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vtkm::IdComponent subIndex = componentIndex % NUM_SUB_COMPONENTS;
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vtkm::IdComponent productIndex = componentIndex / NUM_SUB_COMPONENTS;
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switch (productIndex)
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{
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case 0:
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return this->GetStrideForComponentArray(
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array.GetFirstArray(), array, subIndex, productIndex, allowCopy);
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case 1:
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return this->GetStrideForComponentArray(
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array.GetSecondArray(), array, subIndex, productIndex, allowCopy);
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case 2:
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return this->GetStrideForComponentArray(
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array.GetThirdArray(), array, subIndex, productIndex, allowCopy);
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default:
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throw vtkm::cont::ErrorBadValue("Invalid component index to ArrayExtractComponent.");
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}
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}
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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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/// @cond SERIALIZATION
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namespace vtkm
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{
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namespace cont
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{
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template <typename AH1, typename AH2, typename AH3>
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struct SerializableTypeString<vtkm::cont::ArrayHandleCartesianProduct<AH1, AH2, AH3>>
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{
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static VTKM_CONT const std::string& Get()
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{
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static std::string name = "AH_CartesianProduct<" + SerializableTypeString<AH1>::Get() + "," +
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SerializableTypeString<AH2>::Get() + "," + SerializableTypeString<AH3>::Get() + ">";
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return name;
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}
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};
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template <typename T, typename ST1, typename ST2, typename ST3>
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struct SerializableTypeString<
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vtkm::cont::ArrayHandle<vtkm::Vec<T, 3>, vtkm::cont::StorageTagCartesianProduct<ST1, ST2, ST3>>>
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: SerializableTypeString<vtkm::cont::ArrayHandleCartesianProduct<vtkm::cont::ArrayHandle<T, ST1>,
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vtkm::cont::ArrayHandle<T, ST2>,
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vtkm::cont::ArrayHandle<T, ST3>>>
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{
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};
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}
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} // vtkm::cont
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namespace mangled_diy_namespace
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{
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template <typename AH1, typename AH2, typename AH3>
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struct Serialization<vtkm::cont::ArrayHandleCartesianProduct<AH1, AH2, AH3>>
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{
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private:
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using Type = typename vtkm::cont::ArrayHandleCartesianProduct<AH1, AH2, AH3>;
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using BaseType = vtkm::cont::ArrayHandle<typename Type::ValueType, typename Type::StorageTag>;
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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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Type array = obj;
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vtkmdiy::save(bb, array.GetFirstArray());
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vtkmdiy::save(bb, array.GetSecondArray());
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vtkmdiy::save(bb, array.GetThirdArray());
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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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AH1 array1;
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AH2 array2;
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AH3 array3;
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vtkmdiy::load(bb, array1);
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vtkmdiy::load(bb, array2);
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vtkmdiy::load(bb, array3);
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obj = vtkm::cont::make_ArrayHandleCartesianProduct(array1, array2, array3);
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}
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};
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template <typename T, typename ST1, typename ST2, typename ST3>
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struct Serialization<
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vtkm::cont::ArrayHandle<vtkm::Vec<T, 3>, vtkm::cont::StorageTagCartesianProduct<ST1, ST2, ST3>>>
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: Serialization<vtkm::cont::ArrayHandleCartesianProduct<vtkm::cont::ArrayHandle<T, ST1>,
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vtkm::cont::ArrayHandle<T, ST2>,
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vtkm::cont::ArrayHandle<T, ST3>>>
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{
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};
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} // diy
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/// @endcond SERIALIZATION
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#endif //vtk_m_cont_ArrayHandleCartesianProduct_h
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