vtkWebGPURenderTextureCache.h

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

#include "vtkObject.h"

#include "vtkRenderingWebGPUModule.h" // for export macro
#include "vtkSmartPointer.h"          // for vtkSmartPointer
#include "vtkWrappingHints.h"         // For VTK_MARSHALAUTO

#include <memory> // for unique_ptr

VTK_ABI_NAMESPACE_BEGIN

class vtkWebGPURenderer;
class vtkWebGPURenderTextureDeviceResource;
class vtkWebGPURenderWindow;
class vtkWindow;

class VTKRENDERINGWEBGPU_EXPORT VTK_MARSHALAUTO vtkWebGPURenderTextureCache : public vtkObject
{
public:
  static vtkWebGPURenderTextureCache* New();
  vtkTypeMacro(vtkWebGPURenderTextureCache, vtkObject);

  void PrintSelf(ostream& os, vtkIndent indent) override;

  void ReleaseGraphicsResources(vtkWindow* window);

  int AddRenderTexture(vtkSmartPointer<vtkWebGPURenderTextureDeviceResource> renderTexture);

  vtkSmartPointer<vtkWebGPURenderTextureDeviceResource> GetRenderTexture(int index);

  bool RemoveRenderTexture(int index);

protected:
  vtkWebGPURenderTextureCache();
  ~vtkWebGPURenderTextureCache() override;

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

  friend class vtkWebGPUTexture;
  static constexpr int INVALID_TEXTURE_INDEX = -1;
  class vtkInternals;
  std::unique_ptr<vtkInternals> Internals;
};

VTK_ABI_NAMESPACE_END
#endif