vtkmDataArray.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-FileCopyrightText: Copyright (c) Kitware, Inc.
// SPDX-FileCopyrightText: Copyright 2019 Sandia Corporation.
// SPDX-FileCopyrightText: Copyright 2019 UT-Battelle, LLC.
// SPDX-FileCopyrightText: Copyright 2019 Los Alamos National Security.
// SPDX-License-Identifier: LicenseRef-BSD-3-Clause-Sandia-LANL-USGov
 
#ifndef vtkmDataArray_h
#define vtkmDataArray_h
 
#include "vtkAcceleratorsVTKmCoreModule.h" // For export macro
#include "vtkGenericDataArray.h"
#include "vtkmConfigCore.h" // For template export
 
#include <viskores/VecTraits.h>               // For viskores::VecTraits
#include <viskores/cont/ArrayHandle.h>        // For viskores::cont::ArrayHandle
#include <viskores/cont/UnknownArrayHandle.h> // For viskores::cont::UnknownArrayHandle
 
#include <memory> // For std::unique_ptr<>
#include <mutex>  // For std::mutex
 
namespace fromvtkm
{
VTK_ABI_NAMESPACE_BEGIN
 
template <typename T>
class ArrayHandleHelperBase;
 
template <typename T>
class ArrayHandleHelperUnknown;
 
template <typename ArrayHandleType>
class ArrayHandleHelperRead;
 
template <typename ArrayHandleType>
class ArrayHandleHelperWrite;
 
VTK_ABI_NAMESPACE_END
} // fromvtkm
 
VTK_ABI_NAMESPACE_BEGIN
template <typename T>
class vtkmDataArray
  : public vtkGenericDataArray<vtkmDataArray<T>, T, vtkArrayTypes::VTKM_DATA_ARRAY>
{
  static_assert(std::is_arithmetic<T>::value, "T must be an integral or floating-point type");
 
  using GenericDataArrayType =
    vtkGenericDataArray<vtkmDataArray<T>, T, vtkArrayTypes::VTKM_DATA_ARRAY>;
 
public:
  using SelfType = vtkmDataArray<T>;
  vtkTemplateTypeMacro(SelfType, GenericDataArrayType);
  using typename Superclass::ArrayTypeTag;
  using typename Superclass::DataTypeTag;
  using typename Superclass::ValueType;
 
  static vtkmDataArray* New();

  void SetVtkmArrayHandle(const viskores::cont::UnknownArrayHandle& ah);

  viskores::cont::UnknownArrayHandle GetVtkmUnknownArrayHandle() const;

  void* GetVoidPointer(vtkIdType valueIdx) override;
  void* WriteVoidPointer(vtkIdType valueIdx, vtkIdType numValues) override;
  T* GetPointer(vtkIdType valueIdx);
  vtkDataArray::MemorySpace GetMemorySpace() override;
  void* GetDeviceVoidPointer(vtkIdType valueIdx) override;

  ValueType GetValue(vtkIdType valueIdx) const;
  void SetValue(vtkIdType valueIdx, ValueType value);
  void GetTypedTuple(vtkIdType tupleIdx, ValueType* tuple) const;
  void SetTypedTuple(vtkIdType tupleIdx, const ValueType* tuple);
  ValueType GetTypedComponent(vtkIdType tupleIdx, int compIdx) const;
  void SetTypedComponent(vtkIdType tupleIdx, int compIdx, ValueType value);
 
protected:
  vtkmDataArray();
  ~vtkmDataArray() override;

  using Superclass::ComputeScalarRange;
  bool ComputeScalarRange(
    double* ranges, const unsigned char* ghosts, unsigned char ghostsToSkip = 0xff) override;
  using Superclass::ComputeVectorRange;
  bool ComputeVectorRange(
    double range[2], const unsigned char* ghosts, unsigned char ghostsToSkip = 0xff) override;
  using Superclass::ComputeFiniteScalarRange;
  bool ComputeFiniteScalarRange(
    double* ranges, const unsigned char* ghosts, unsigned char ghostsToSkip = 0xff) override;
  using Superclass::ComputeFiniteVectorRange;
  bool ComputeFiniteVectorRange(
    double range[2], const unsigned char* ghosts, unsigned char ghostsToSkip = 0xff) override;

  bool AllocateTuples(vtkIdType numberOfTuples);
  bool ReallocateTuples(vtkIdType numberOfTuples);
 
private:
  // To access concept methods
  friend class vtkGenericDataArray<SelfType, ValueType, ArrayTypeTag::value>;
  friend fromvtkm::ArrayHandleHelperBase<T>;
  friend fromvtkm::ArrayHandleHelperUnknown<T>;
  template <typename ArrayHandleType>
  friend class fromvtkm::ArrayHandleHelperRead;
  template <typename ArrayHandleType>
  friend class fromvtkm::ArrayHandleHelperWrite;
 
  mutable std::unique_ptr<fromvtkm::ArrayHandleHelperBase<T>> Helper;
 
  mutable std::mutex Mutex;
 
  vtkmDataArray(const vtkmDataArray&) = delete;
  void operator=(const vtkmDataArray&) = delete;
};
 
// Declare vtkArrayDownCast implementations for vtkmDataArray:
vtkArrayDownCast_TemplateFastCastMacro(vtkmDataArray);
 
//=============================================================================
template <typename T, typename S>
inline vtkmDataArray<typename viskores::VecTraits<T>::BaseComponentType>* make_vtkmDataArray(
  const viskores::cont::ArrayHandle<T, S>& ah)
{
  auto ret = vtkmDataArray<typename viskores::VecTraits<T>::BaseComponentType>::New();
  ret->SetVtkmArrayHandle(ah);
  return ret;
}
 
//=============================================================================
template <typename TCast, typename TReal, typename S>
inline vtkmDataArray<typename viskores::VecTraits<TReal>::BaseComponentType>* make_vtkmDataArray(
  const viskores::cont::ArrayHandle<TCast, viskores::cont::StorageTagCast<TReal, S>>& ah)
{
  auto ret = vtkmDataArray<typename viskores::VecTraits<TReal>::BaseComponentType>::New();
  ret->SetVtkmArrayHandle(ah);
  return ret;
}
 
//=============================================================================
#ifndef vtkmDataArray_cxx
extern template class VTKACCELERATORSVTKMCORE_TEMPLATE_EXPORT vtkmDataArray<char>;
extern template class VTKACCELERATORSVTKMCORE_TEMPLATE_EXPORT vtkmDataArray<double>;
extern template class VTKACCELERATORSVTKMCORE_TEMPLATE_EXPORT vtkmDataArray<float>;
extern template class VTKACCELERATORSVTKMCORE_TEMPLATE_EXPORT vtkmDataArray<int>;
extern template class VTKACCELERATORSVTKMCORE_TEMPLATE_EXPORT vtkmDataArray<long>;
extern template class VTKACCELERATORSVTKMCORE_TEMPLATE_EXPORT vtkmDataArray<long long>;
extern template class VTKACCELERATORSVTKMCORE_TEMPLATE_EXPORT vtkmDataArray<short>;
extern template class VTKACCELERATORSVTKMCORE_TEMPLATE_EXPORT vtkmDataArray<signed char>;
extern template class VTKACCELERATORSVTKMCORE_TEMPLATE_EXPORT vtkmDataArray<unsigned char>;
extern template class VTKACCELERATORSVTKMCORE_TEMPLATE_EXPORT vtkmDataArray<unsigned int>;
extern template class VTKACCELERATORSVTKMCORE_TEMPLATE_EXPORT vtkmDataArray<unsigned long>;
extern template class VTKACCELERATORSVTKMCORE_TEMPLATE_EXPORT vtkmDataArray<unsigned long long>;
extern template class VTKACCELERATORSVTKMCORE_TEMPLATE_EXPORT vtkmDataArray<unsigned short>;
#endif // vtkmDataArray_cxx
 
VTK_ABI_NAMESPACE_END
#endif // vtkmDataArray_h
 
#include "vtkmlib/vtkmDataArray.hxx"
 
// VTK-HeaderTest-Exclude: vtkmDataArray.h