vtkGenericDataArray.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef vtkGenericDataArray_h
#define vtkGenericDataArray_h
 
#include "vtkDataArray.h"
 
#include "vtkCompiler.h"    // for VTK_USE_EXTERN_TEMPLATE
#include "vtkDeprecation.h" // For VTK_DEPRECATED_IN_9_6_0
#include "vtkGenericDataArrayLookupHelper.h"
#include "vtkSmartPointer.h"
#include "vtkTypeTraits.h"
 
#include <cassert> // for assert
#include <memory>  // for std::unique_ptr
 
VTK_ABI_NAMESPACE_BEGIN
template <class DerivedT, class ValueTypeT, int ArrayType = vtkArrayTypes::VTK_DATA_ARRAY>
class vtkGenericDataArray : public vtkDataArray
{
  static_assert(ArrayType >= vtkArrayTypes::VTK_ABSTRACT_ARRAY &&
      ArrayType < vtkArrayTypes::VTK_NUM_ARRAY_TYPES,
    "ArrayType must be a valid vtkAbstractArray::ArrayType enum value");
 
public:
  using SelfType = vtkGenericDataArray<DerivedT, ValueTypeT, ArrayType>;
  vtkTemplateTypeMacro(SelfType, vtkDataArray);
  using ArrayTypeTag = std::integral_constant<int, ArrayType>;
  using DataTypeTag = std::integral_constant<int, vtkTypeTraits<ValueTypeT>::VTK_TYPE_ID>;
  using ValueType = ValueTypeT;

  enum
  {
    VTK_DATA_TYPE VTK_DEPRECATED_IN_9_6_0("Use DataTypeTag::value") =
      vtkTypeTraits<ValueType>::VTK_TYPE_ID
  };


  ValueType GetValue(vtkIdType valueIdx) const
  {
    return static_cast<const DerivedT*>(this)->GetValue(valueIdx);
  }

  void SetValue(vtkIdType valueIdx, ValueType value)
    VTK_EXPECTS(0 <= valueIdx && valueIdx < GetNumberOfValues())
  {
    static_cast<DerivedT*>(this)->SetValue(valueIdx, value);
  }

  void GetTypedTuple(vtkIdType tupleIdx, ValueType* tuple) const
    VTK_EXPECTS(0 <= tupleIdx && tupleIdx < GetNumberOfTuples())
  {
    static_cast<const DerivedT*>(this)->GetTypedTuple(tupleIdx, tuple);
  }

  void SetTypedTuple(vtkIdType tupleIdx, const ValueType* tuple)
    VTK_EXPECTS(0 <= tupleIdx && tupleIdx < GetNumberOfTuples())
  {
    static_cast<DerivedT*>(this)->SetTypedTuple(tupleIdx, tuple);
  }

  ValueType GetTypedComponent(vtkIdType tupleIdx, int compIdx) const
    VTK_EXPECTS(0 <= tupleIdx && GetNumberOfComponents() * tupleIdx + compIdx < GetNumberOfValues())
      VTK_EXPECTS(0 <= compIdx && compIdx < GetNumberOfComponents())
  {
    return static_cast<const DerivedT*>(this)->GetTypedComponent(tupleIdx, compIdx);
  }

  void SetTypedComponent(vtkIdType tupleIdx, int compIdx, ValueType value)
    VTK_EXPECTS(0 <= tupleIdx && GetNumberOfComponents() * tupleIdx + compIdx < GetNumberOfValues())
      VTK_EXPECTS(0 <= compIdx && compIdx < GetNumberOfComponents())
  {
    static_cast<DerivedT*>(this)->SetTypedComponent(tupleIdx, compIdx, value);
  }


  void* GetVoidPointer(vtkIdType valueIdx) override;
  VTK_DEPRECATED_IN_9_7_0("Use vtkAOSDataArrayTemplate::GetPointer(valueIdx) instead")
  ValueType* GetPointer(vtkIdType valueIdx);
  void SetVoidArray(void*, vtkIdType, int) override;
  void SetVoidArray(void*, vtkIdType, int, int) override;
  void SetArrayFreeFunction(void (*callback)(void*)) override;
  void* WriteVoidPointer(vtkIdType valueIdx, vtkIdType numValues) override;
  VTK_DEPRECATED_IN_9_7_0("Use vtkAOSDataArrayTemplate::WritePointer(valueIdx, numValues) instead")
  ValueType* WritePointer(vtkIdType valueIdx, vtkIdType numValues);

  void RemoveTuple(vtkIdType tupleIdx) override;

  vtkIdType InsertNextValue(ValueType value);

  void InsertValue(vtkIdType valueIdx, ValueType value);

  void InsertTypedTuple(vtkIdType tupleIdx, const ValueType* t);

  vtkIdType InsertNextTypedTuple(const ValueType* t);

  void InsertTypedComponent(vtkIdType tupleIdx, int compIdx, ValueType val);


  void GetValueRange(
    ValueType range[2], int comp, const unsigned char* ghosts, unsigned char ghostsToSkip = 0xff);
  void GetValueRange(ValueType range[2], int comp);
  ValueType* GetValueRange(int comp) VTK_SIZEHINT(2);

  ValueType* GetValueRange() VTK_SIZEHINT(2) { return this->GetValueRange(0); }
  void GetValueRange(ValueType range[2]) { this->GetValueRange(range, 0); }

  void GetFiniteValueRange(
    ValueType range[2], int comp, const unsigned char* ghosts, unsigned char ghostsToSkip = 0xff);
  void GetFiniteValueRange(ValueType range[2], int comp);
  ValueType* GetFiniteValueRange(int comp) VTK_SIZEHINT(2);
  ValueType* GetFiniteValueRange() VTK_SIZEHINT(2) { return this->GetFiniteValueRange(0); }
  void GetFiniteValueRange(ValueType range[2]) { this->GetFiniteValueRange(range, 0); }

  VTK_DEPRECATED_IN_9_6_0("Use GetSize() instead")
  vtkIdType Capacity() { return this->Size; }

  virtual void FillTypedComponent(int compIdx, ValueType value);

  virtual void FillValue(ValueType value);
 
#ifndef __VTK_WRAP__

  static DerivedT* FastDownCast(vtkAbstractArray* source);
#endif
  int GetArrayType() const override;
  int GetDataType() const override;
  ValueType GetDataTypeValueMin() const;
  ValueType GetDataTypeValueMax() const;
  int GetDataTypeSize() const override;
  bool HasStandardMemoryLayout() const override;
  vtkTypeBool Allocate(vtkIdType size, vtkIdType ext = 1000) override;
  vtkTypeBool Resize(vtkIdType numTuples) override;
  void SetNumberOfComponents(int num) override;
  void SetNumberOfTuples(vtkIdType number) override;
  void Initialize() override;
  void Squeeze() override;
  void SetTuple(vtkIdType dstTupleIdx, vtkIdType srcTupleIdx, vtkAbstractArray* source) override;
  // MSVC doesn't like 'using' here (error C2487). Just forward instead:
  // using Superclass::SetTuple;
  void SetTuple(vtkIdType tupleIdx, const float* tuple) override
  {
    this->Superclass::SetTuple(tupleIdx, tuple);
  }
  void SetTuple(vtkIdType tupleIdx, const double* tuple) override
  {
    this->Superclass::SetTuple(tupleIdx, tuple);
  }
 
  void InsertTuplesStartingAt(
    vtkIdType dstStart, vtkIdList* srcIds, vtkAbstractArray* source) override;
  void InsertTuples(vtkIdList* dstIds, vtkIdList* srcIds, vtkAbstractArray* source) override;
  // MSVC doesn't like 'using' here (error C2487). Just forward instead:
  // using Superclass::InsertTuples;
  void InsertTuples(
    vtkIdType dstStart, vtkIdType n, vtkIdType srcStart, vtkAbstractArray* source) override
  {
    this->Superclass::InsertTuples(dstStart, n, srcStart, source);
  }
 
  void InsertTuple(vtkIdType dstTupleIdx, vtkIdType srcTupleIdx, vtkAbstractArray* source) override;
  void InsertTuple(vtkIdType tupleIdx, const float* source) override;
  void InsertTuple(vtkIdType tupleIdx, const double* source) override;
  void InsertComponent(vtkIdType tupleIdx, int compIdx, double value) override;
  vtkIdType InsertNextTuple(vtkIdType srcTupleIdx, vtkAbstractArray* source) override;
  vtkIdType InsertNextTuple(const float* tuple) override;
  vtkIdType InsertNextTuple(const double* tuple) override;
  void GetTuples(vtkIdList* tupleIds, vtkAbstractArray* output) override;
  void GetTuples(vtkIdType p1, vtkIdType p2, vtkAbstractArray* output) override;
  double* GetTuple(vtkIdType tupleIdx) override;
  void GetTuple(vtkIdType tupleIdx, double* tuple) override;
  void InterpolateTuple(vtkIdType dstTupleIdx, vtkIdList* ptIndices, vtkAbstractArray* source,
    double* weights) override;
  void InterpolateTuple(vtkIdType dstTupleIdx, vtkIdType srcTupleIdx1, vtkAbstractArray* source1,
    vtkIdType srcTupleIdx2, vtkAbstractArray* source2, double t) override;
  void SetComponent(vtkIdType tupleIdx, int compIdx, double value) override;
  double GetComponent(vtkIdType tupleIdx, int compIdx) override;
  void SetVariantValue(vtkIdType valueIdx, vtkVariant value) override;
  vtkVariant GetVariantValue(vtkIdType valueIdx) override;
  void InsertVariantValue(vtkIdType valueIdx, vtkVariant value) override;
  vtkIdType LookupValue(vtkVariant value) override;
  virtual vtkIdType LookupTypedValue(ValueType value);
  void LookupValue(vtkVariant value, vtkIdList* valueIds) override;
  virtual void LookupTypedValue(ValueType value, vtkIdList* valueIds);
  void ClearLookup() override;
  void DataChanged() override;
  void FillComponent(int compIdx, double value) override;
  VTK_DEPRECATED_IN_9_7_0("Use vtk::DataArrayValueRange, or the array directly")
  VTK_NEWINSTANCE vtkArrayIterator* NewIterator() override;
 
protected:
  vtkGenericDataArray();
  ~vtkGenericDataArray() override;

  bool AllocateTuples(vtkIdType numTuples)
  {
    return static_cast<DerivedT*>(this)->AllocateTuples(numTuples);
  }

  bool ReallocateTuples(vtkIdType numTuples)
  {
    return static_cast<DerivedT*>(this)->ReallocateTuples(numTuples);
  }
 
  // This method resizes the array if needed so that the given tuple index is
  // valid/accessible.
  bool EnsureAccessToTuple(vtkIdType tupleIdx);

  void ComputeValueRange(
    ValueType range[2], int comp, const unsigned char* ghosts, unsigned char ghostsToSkip = 0xff);

  void ComputeFiniteValueRange(
    ValueType range[2], int comp, const unsigned char* ghosts, unsigned char ghostsToSkip = 0xff);

  bool ComputeScalarValueRange(
    ValueType* ranges, const unsigned char* ghosts, unsigned char ghostsToSkip = 0xff);

  bool ComputeVectorValueRange(
    ValueType range[2], const unsigned char* ghosts, unsigned char ghostsToSkip = 0xff);

  bool ComputeFiniteScalarValueRange(
    ValueType* ranges, const unsigned char* ghosts, unsigned char ghostsToSkip = 0xff);

  bool ComputeFiniteVectorValueRange(
    ValueType range[2], const unsigned char* ghosts, unsigned char ghostsToSkip = 0xff);
 
  std::vector<double> LegacyTuple;
  std::vector<ValueType> LegacyValueRange;
  std::vector<ValueType> LegacyValueRangeFull;
 
  vtkGenericDataArrayLookupHelper<SelfType> Lookup;
 
private:
  vtkGenericDataArray(const vtkGenericDataArray&) = delete;
  void operator=(const vtkGenericDataArray&) = delete;
 
  struct vtkInternals;
  std::unique_ptr<vtkInternals> Internals;
};
VTK_ABI_NAMESPACE_END
 
// Forward declare necessary stuffs:
VTK_ABI_NAMESPACE_BEGIN
template <typename ValueType>
class vtkAOSDataArrayTemplate;
template <typename ValueType>
class vtkSOADataArrayTemplate;
template <typename ValueType>
class vtkScaledSOADataArrayTemplate;
VTK_ABI_NAMESPACE_END
 
#define VTK_INSTANTIATE_VALUERANGE_ARRAYTYPE(ArrayType, ValueType)                                 \
  template VTKCOMMONCORE_EXPORT bool DoComputeScalarRange(                                         \
    ArrayType*, ValueType*, vtkDataArrayPrivate::AllValues, const unsigned char*, unsigned char);  \
  template VTKCOMMONCORE_EXPORT bool DoComputeScalarRange(ArrayType*, ValueType*,                  \
    vtkDataArrayPrivate::FiniteValues, const unsigned char*, unsigned char);                       \
  template VTKCOMMONCORE_EXPORT bool DoComputeVectorRange(ArrayType*, ValueType[2],                \
    vtkDataArrayPrivate::AllValues, const unsigned char*, unsigned char);                          \
  template VTKCOMMONCORE_EXPORT bool DoComputeVectorRange(ArrayType*, ValueType[2],                \
    vtkDataArrayPrivate::FiniteValues, const unsigned char*, unsigned char);
 
#define VTK_INSTANTIATE_VALUERANGE_VALUETYPE(ValueType)                                            \
  VTK_INSTANTIATE_VALUERANGE_ARRAYTYPE(vtkAOSDataArrayTemplate<ValueType>, ValueType)              \
  VTK_INSTANTIATE_VALUERANGE_ARRAYTYPE(vtkSOADataArrayTemplate<ValueType>, ValueType)              \
  VTK_INSTANTIATE_VALUERANGE_ARRAYTYPE(vtkScaledSOADataArrayTemplate<ValueType>, ValueType)
 
namespace vtkDataArrayPrivate
{
VTK_ABI_NAMESPACE_BEGIN
template <typename A, typename R, typename T>
VTKCOMMONCORE_EXPORT bool DoComputeScalarRange(
  A*, R*, T, const unsigned char* ghosts, unsigned char ghostsToSkip);
template <typename A, typename R>
VTKCOMMONCORE_EXPORT bool DoComputeVectorRange(
  A*, R[2], AllValues, const unsigned char* ghosts, unsigned char ghostsToSkip);
template <typename A, typename R>
VTKCOMMONCORE_EXPORT bool DoComputeVectorRange(
  A*, R[2], FiniteValues, const unsigned char* ghosts, unsigned char ghostsToSkip);
VTK_ABI_NAMESPACE_END
} // namespace vtkDataArrayPrivate
 
#define VTK_DECLARE_VALUERANGE_ARRAYTYPE(ArrayType, ValueType)                                     \
  extern template VTKCOMMONCORE_EXPORT bool DoComputeScalarRange(                                  \
    ArrayType*, ValueType*, vtkDataArrayPrivate::AllValues, const unsigned char*, unsigned char);  \
  extern template VTKCOMMONCORE_EXPORT bool DoComputeScalarRange(ArrayType*, ValueType*,           \
    vtkDataArrayPrivate::FiniteValues, const unsigned char*, unsigned char);                       \
  extern template VTKCOMMONCORE_EXPORT bool DoComputeVectorRange(ArrayType*, ValueType[2],         \
    vtkDataArrayPrivate::AllValues, const unsigned char*, unsigned char);                          \
  extern template VTKCOMMONCORE_EXPORT bool DoComputeVectorRange(ArrayType*, ValueType[2],         \
    vtkDataArrayPrivate::FiniteValues, const unsigned char*, unsigned char);
 
#define VTK_DECLARE_VALUERANGE_VALUETYPE(ValueType)                                                \
  VTK_DECLARE_VALUERANGE_ARRAYTYPE(vtkAOSDataArrayTemplate<ValueType>, ValueType)                  \
  VTK_DECLARE_VALUERANGE_ARRAYTYPE(vtkSOADataArrayTemplate<ValueType>, ValueType)                  \
  VTK_DECLARE_VALUERANGE_ARRAYTYPE(vtkScaledSOADataArrayTemplate<ValueType>, ValueType)
 
#include "vtkGenericDataArray.txx"
 
// Adds an implementation of NewInstanceInternal() that returns an AoS
// (unmapped) VTK array, if possible. This allows the pipeline to copy and
// propagate the array when the array data is not modifiable. Use this in
// combination with vtkAbstractTypeMacro or vtkAbstractTemplateTypeMacro
// (instead of vtkTypeMacro) to avoid adding the default NewInstance
// implementation.
#define vtkAOSArrayNewInstanceMacro(thisClass)                                                     \
protected:                                                                                         \
  vtkObjectBase* NewInstanceInternal() const override                                              \
  {                                                                                                \
    if (vtkDataArray* da = vtkDataArray::CreateDataArray(thisClass::DataTypeTag::value))           \
    {                                                                                              \
      return da;                                                                                   \
    }                                                                                              \
    return thisClass::New();                                                                       \
  }                                                                                                \
                                                                                                   \
public:
 
#endif
 
// This is used to tell libraries other than vtkCommonCore that instantiations of
// the GetValueRange lookups can be found externally. This prevents each library
// from instantiating these on their own.
// Additionally it helps hide implementation details that pull in system
// headers.
// We only provide these specializations for the 64-bit integer types, since
// other types can reuse the double-precision mechanism in
// vtkDataArray::GetRange without losing precision.
#ifdef VTK_USE_EXTERN_TEMPLATE
 
#ifndef VTK_GDA_TEMPLATE_EXTERN
#define VTK_GDA_TEMPLATE_EXTERN
#ifdef _MSC_VER
#pragma warning(push)
// The following is needed when the following is declared
// dllexport and is used from another class in vtkCommonCore
#pragma warning(disable : 4910) // extern and dllexport incompatible
#endif
 
VTK_ABI_NAMESPACE_BEGIN
// Forward declare necessary stuffs:
template <typename ValueType>
class vtkAOSDataArrayTemplate;
template <typename ValueType>
class vtkSOADataArrayTemplate;
template <typename ValueType>
class vtkScaledSOADataArrayTemplate;
 
VTK_ABI_NAMESPACE_END
 
namespace vtkDataArrayPrivate
{
VTK_ABI_NAMESPACE_BEGIN
// These are instantiated in vtkGenericDataArrayValueRange${i}.cxx
VTK_DECLARE_VALUERANGE_VALUETYPE(long)
VTK_DECLARE_VALUERANGE_VALUETYPE(unsigned long)
VTK_DECLARE_VALUERANGE_VALUETYPE(long long)
VTK_DECLARE_VALUERANGE_VALUETYPE(unsigned long long)
 
// This is instantiated in vtkGenericDataArray.cxx
VTK_DECLARE_VALUERANGE_ARRAYTYPE(vtkDataArray, double)
 
VTK_ABI_NAMESPACE_END
} // namespace vtkDataArrayPrivate
 
#ifdef _MSC_VER
#pragma warning(pop)
#endif
#endif // VTK_GDA_TEMPLATE_EXTERN
 
#endif // VTK_GDA_VALUERANGE_INSTANTIATING
 
// VTK-HeaderTest-Exclude: vtkGenericDataArray.h