vtkOpenVRRenderWindow.h

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/*=========================================================================
 
Program:   Visualization Toolkit
Module:    vtkOpenVRRenderWindow.h
 
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
 
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.  See the above copyright notice for more information.
 
=========================================================================*/
#ifndef vtkOpenVRRenderWindow_h
#define vtkOpenVRRenderWindow_h
 
#include "vtkEventData.h"             // for enums
#include "vtkOpenVROverlay.h"         // used for ivars
#include "vtkRenderingOpenVRModule.h" // For export macro
#include "vtkSmartPointer.h"          // used for ivars
#include "vtkVRRenderWindow.h"
 
#include <openvr.h> // for ivars
 
class vtkMatrix4x4;
class vtkOpenVRModel;
 
class VTKRENDERINGOPENVR_EXPORT vtkOpenVRRenderWindow : public vtkVRRenderWindow
{
public:
  static vtkOpenVRRenderWindow* New();
  vtkTypeMacro(vtkOpenVRRenderWindow, vtkVRRenderWindow);
 
  static bool IsHMDPresent();
 
  void Initialize() override;
 
  void ReleaseGraphicsResources(vtkWindow* renWin) override;
 
  vr::IVRSystem* GetHMD() { return this->HMD; }
 
  vtkRenderWindowInteractor* MakeRenderWindowInteractor() override;
 
  void Render() override;
 
  void StereoMidpoint() override;
 
  void StereoRenderComplete() override;
 
  void RenderOverlay();
 
  /*
   * Get the overlay to use on the VR dashboard.
   */
  vtkGetSmartPointerMacro(DashboardOverlay, vtkOpenVROverlay);
 
  void UpdateHMDMatrixPose() override;
 
  void SetMatrixFromOpenVRPose(vtkMatrix4x4* result, const vr::TrackedDevicePose_t& vrPose);
 
  vr::IVRRenderModels* GetOpenVRRenderModels() { return this->OpenVRRenderModels; }
 
  void RenderModels() override;
 
  uint32_t GetDeviceHandleForOpenVRHandle(vr::TrackedDeviceIndex_t index);
  vtkEventDataDevice GetDeviceForOpenVRHandle(vr::TrackedDeviceIndex_t ohandle);
 
protected:
  vtkOpenVRRenderWindow();
  ~vtkOpenVRRenderWindow() override = default;
 
  std::string GetWindowTitleFromAPI() override;
  bool GetSizeFromAPI() override;
 
  bool CreateFramebuffers(uint32_t viewCount = 2) override;
  bool CreateOneFramebuffer(int nWidth, int nHeight, FramebufferDesc& framebufferDesc);
 
  std::string GetTrackedDeviceString(vr::IVRSystem* pHmd, vr::TrackedDeviceIndex_t unDevice,
    vr::TrackedDeviceProperty prop, vr::TrackedPropertyError* peError = nullptr);
 
  vtkOpenVRModel* FindOrLoadRenderModel(const char* modelName);
 
  vtkSmartPointer<vtkOpenVROverlay> DashboardOverlay;
  vr::IVRSystem* HMD = nullptr;
  vr::IVRRenderModels* OpenVRRenderModels = nullptr;
 
private:
  vtkOpenVRRenderWindow(const vtkOpenVRRenderWindow&) = delete;
  void operator=(const vtkOpenVRRenderWindow&) = delete;
};
 
#endif