vtkOpenGLGlyph3DMapper.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkOpenGLGlyph3DMapper_h
#define vtkOpenGLGlyph3DMapper_h

#include "vtkGlyph3DMapper.h"

#include "vtkColor.h"                  // for ivar
#include "vtkDataObjectTree.h"         // for arg
#include "vtkNew.h"                    // For vtkNew
#include "vtkRenderingOpenGL2Module.h" // For export macro
#include "vtkVector.h"                 // for ivar
#include "vtkWrappingHints.h"          // For VTK_MARSHALAUTO

#include <stack> // for ivar

VTK_ABI_NAMESPACE_BEGIN
class vtkOpenGLGlyph3DHelper;
class vtkBitArray;
class vtkOverrideAttribute;

class VTKRENDERINGOPENGL2_EXPORT VTK_MARSHALAUTO vtkOpenGLGlyph3DMapper : public vtkGlyph3DMapper
{
public:
  static vtkOpenGLGlyph3DMapper* New();
  VTK_NEWINSTANCE
  static vtkOverrideAttribute* CreateOverrideAttributes();
  vtkTypeMacro(vtkOpenGLGlyph3DMapper, vtkGlyph3DMapper);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  void Render(vtkRenderer* ren, vtkActor* a) override;

  void ReleaseGraphicsResources(vtkWindow* window) override;


  vtkIdType GetMaxNumberOfLOD() override;

  void SetNumberOfLOD(vtkIdType nb) override;
  vtkIdType GetNumberOfLOD() { return this->LODs.size(); }

  void SetLODDistanceAndTargetReduction(
    vtkIdType index, float distance, float targetReduction) override;

  // Set, Get, and GetNumberOf are needed to auto generate (de)serialization code.
  void SetLODDistance(vtkIdType index, float distance);
  void SetLODTargetReduction(vtkIdType index, float targetReduction);
  float GetLODDistance(vtkIdType index);
  float GetLODTargetReduction(vtkIdType index);
  int GetNumberOfLODDistances() { return static_cast<int>(this->LODs.size()); }
  int GetNumberOfLODTargetReductions() { return static_cast<int>(this->LODs.size()); }

protected:
  vtkOpenGLGlyph3DMapper();
  ~vtkOpenGLGlyph3DMapper() override;

  virtual void Render(vtkRenderer*, vtkActor*, vtkDataSet*);

  void CopyInformationToSubMapper(vtkOpenGLGlyph3DHelper*);

  void SetupColorMapper();

  void RenderChildren(
    vtkRenderer* renderer, vtkActor* actor, vtkDataObject* dobjTree, unsigned int& flatIndex);

  vtkMapper* ColorMapper;

  class vtkOpenGLGlyph3DMapperEntry;
  class vtkOpenGLGlyph3DMapperSubArray;
  class vtkOpenGLGlyph3DMapperArray;
  vtkOpenGLGlyph3DMapperArray* GlyphValues; // array of value for datasets

  virtual void RebuildStructures(vtkOpenGLGlyph3DMapperSubArray* subarray, vtkIdType numPts,
    vtkActor* actor, vtkDataSet* dataset, vtkBitArray* maskArray);

  vtkMTimeType BlockMTime; // Last time BlockAttributes was modified.

private:
  vtkOpenGLGlyph3DMapper(const vtkOpenGLGlyph3DMapper&) = delete;
  void operator=(const vtkOpenGLGlyph3DMapper&) = delete;

  struct RenderBlockState
  {
    std::stack<double> Opacity;
    std::stack<bool> Visibility;
    std::stack<bool> Pickability;
    std::stack<vtkColor3d> Color;
  };
  RenderBlockState BlockState;

  void ClearUnusedCachedEntries(vtkDataObject* inputDO);
};

#define vtkOpenGLGlyph3DMapper_OVERRIDE_ATTRIBUTES                                                 \
  vtkOpenGLGlyph3DMapper::CreateOverrideAttributes()
VTK_ABI_NAMESPACE_END
#endif