vtkTextureUnitManager.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef vtkTextureUnitManager_h
#define vtkTextureUnitManager_h
 
#include "vtkObject.h"
#include "vtkRenderingOpenGL2Module.h" // For export macro
 
VTK_ABI_NAMESPACE_BEGIN
class vtkOpenGLRenderWindow;
 
class VTKRENDERINGOPENGL2_EXPORT vtkTextureUnitManager : public vtkObject
{
public:
  vtkTypeMacro(vtkTextureUnitManager, vtkObject);
 
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  static vtkTextureUnitManager* New();

  void Initialize();

  int GetNumberOfTextureUnits();

  virtual int Allocate();

  virtual int Allocate(int unit);

  bool IsAllocated(int textureUnitId);

  virtual void Free(int textureUnitId);
 
protected:
  vtkTextureUnitManager();

  ~vtkTextureUnitManager() override;

  void DeleteTable();
 
  int NumberOfTextureUnits;
  bool* TextureUnits;
 
private:
  vtkTextureUnitManager(const vtkTextureUnitManager&) = delete;
  void operator=(const vtkTextureUnitManager&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif