vtkSMPMergePoints.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkSMPMergePoints_h
#define vtkSMPMergePoints_h

#include "vtkDeprecation.h"      // For VTK_DEPRECATED_IN_9_7_0
#include "vtkFiltersSMPModule.h" // For export macro
#include "vtkIdList.h"           // For inline functions
#include "vtkMergePoints.h"
#include "vtkType.h" // For vtkIdType

#include <atomic> // for std::atomic

VTK_ABI_NAMESPACE_BEGIN
class vtkPointData;

class VTK_DEPRECATED_IN_9_7_0(
  "Please use `vtkStaticPointLocator` instead.") VTKFILTERSSMP_EXPORT vtkSMPMergePoints
  : public vtkMergePoints
{
public:
  vtkTypeMacro(vtkSMPMergePoints, vtkMergePoints);
  static vtkSMPMergePoints* New();
  void PrintSelf(ostream& os, vtkIndent indent) override;

  void InitializeMerge();

  void Merge(vtkSMPMergePoints* locator, vtkIdType idx, vtkPointData* outPd, vtkPointData* inPd,
    vtkIdList* idList);

  void FixSizeOfPointArray();

  vtkIdType GetMaxId() { return this->AtomicInsertionId - 1; }


  vtkIdType GetNumberOfIdsInBucket(vtkIdType idx)
  {
    if (!this->HashTable)
    {
      return 0;
    }
    vtkIdList* bucket = this->HashTable[idx];
    return bucket ? bucket->GetNumberOfIds() : 0;
  }

  vtkIdType GetNumberOfBuckets() VTK_FUTURE_CONST override { return this->NumberOfBuckets; }

protected:
  vtkSMPMergePoints();
  ~vtkSMPMergePoints() override;

  std::atomic<vtkIdType> AtomicInsertionId;

private:
  vtkSMPMergePoints(const vtkSMPMergePoints&) = delete;
  void operator=(const vtkSMPMergePoints&) = delete;
};

VTK_ABI_NAMESPACE_END
#endif // vtkSMPMergePoints_h