vtkRenderWindow.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef vtkRenderWindow_h
#define vtkRenderWindow_h
 
#include "vtkEventData.h"           // for enums
#include "vtkNew.h"                 // For vtkNew
#include "vtkRenderingCoreModule.h" // For export macro
#include "vtkSmartPointer.h"        // For vtkSmartPointer
#include "vtkWindow.h"
#include "vtkWrappingHints.h" // For VTK_MARSHALAUTO
 
VTK_ABI_NAMESPACE_BEGIN
class vtkCollection;
class vtkFloatArray;
class vtkHardwareWindow;
class vtkMatrix4x4;
class vtkProp;
class vtkRenderTimerLog;
class vtkRenderWindowInteractor;
class vtkRenderer;
class vtkRendererCollection;
class vtkStereoCompositor;
class vtkUnsignedCharArray;
 
// lets define the different types of stereo
#define VTK_STEREO_CRYSTAL_EYES 1
#define VTK_STEREO_RED_BLUE 2
#define VTK_STEREO_INTERLACED 3
#define VTK_STEREO_LEFT 4
#define VTK_STEREO_RIGHT 5
#define VTK_STEREO_DRESDEN 6
#define VTK_STEREO_ANAGLYPH 7
#define VTK_STEREO_CHECKERBOARD 8
#define VTK_STEREO_SPLITVIEWPORT_HORIZONTAL 9
#define VTK_STEREO_FAKE 10
#define VTK_STEREO_EMULATE 11
#define VTK_STEREO_ZSPACE_INSPIRE 12
 
class VTKRENDERINGCORE_EXPORT VTK_MARSHALAUTO vtkRenderWindow : public vtkWindow
{
public:
  vtkTypeMacro(vtkRenderWindow, vtkWindow);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  static vtkRenderWindow* New();

  virtual void AddRenderer(vtkRenderer*);

  void RemoveRenderer(vtkRenderer*);

  vtkTypeBool HasRenderer(vtkRenderer*);

  static const char* GetRenderLibrary();

  virtual const char* GetRenderingBackend();

  VTK_MARSHALEXCLUDE(VTK_MARSHAL_EXCLUDE_REASON_IS_INTERNAL)
  vtkGetNewMacro(RenderTimer, vtkRenderTimerLog);

  vtkRendererCollection* GetRenderers() { return this->Renderers; }

  void CaptureGL2PSSpecialProps(vtkCollection* specialProps);


  vtkGetMacro(CapturingGL2PSSpecialProps, int);

  void Render() override;

  virtual void Start() {}

  virtual void End() {}

  virtual void Initialize() {}


  vtkGetMacro(Initialized, bool);

  virtual void Finalize() {}

  virtual void Frame() {}

  virtual void WaitForCompletion() {}

  virtual void CopyResultFrame();

  virtual vtkRenderWindowInteractor* MakeRenderWindowInteractor();


  virtual void SetFullScreen(vtkTypeBool) {}
  vtkGetMacro(FullScreen, vtkTypeBool);
  vtkBooleanMacro(FullScreen, vtkTypeBool);


  vtkGetMacro(Coverable, vtkTypeBool);
  vtkBooleanMacro(Coverable, vtkTypeBool);
  virtual void SetCoverable(vtkTypeBool coverable);


  vtkGetMacro(StereoCapableWindow, vtkTypeBool);
  vtkBooleanMacro(StereoCapableWindow, vtkTypeBool);
  virtual void SetStereoCapableWindow(vtkTypeBool capable);


  vtkGetMacro(StereoType, int);
  void SetStereoType(int);
  void SetStereoTypeToCrystalEyes() { this->SetStereoType(VTK_STEREO_CRYSTAL_EYES); }
  void SetStereoTypeToRedBlue() { this->SetStereoType(VTK_STEREO_RED_BLUE); }
  void SetStereoTypeToInterlaced() { this->SetStereoType(VTK_STEREO_INTERLACED); }
  void SetStereoTypeToLeft() { this->SetStereoType(VTK_STEREO_LEFT); }
  void SetStereoTypeToRight() { this->SetStereoType(VTK_STEREO_RIGHT); }
  void SetStereoTypeToDresden() { this->SetStereoType(VTK_STEREO_DRESDEN); }
  void SetStereoTypeToAnaglyph() { this->SetStereoType(VTK_STEREO_ANAGLYPH); }
  void SetStereoTypeToCheckerboard() { this->SetStereoType(VTK_STEREO_CHECKERBOARD); }
  void SetStereoTypeToSplitViewportHorizontal()
  {
    this->SetStereoType(VTK_STEREO_SPLITVIEWPORT_HORIZONTAL);
  }
  void SetStereoTypeToFake() { this->SetStereoType(VTK_STEREO_FAKE); }
  void SetStereoTypeToEmulate() { this->SetStereoType(VTK_STEREO_EMULATE); }


  const char* GetStereoTypeAsString();
  static const char* GetStereoTypeAsString(int type);


  vtkGetMacro(StereoRender, vtkTypeBool);
  void SetStereoRender(vtkTypeBool stereo);
  vtkBooleanMacro(StereoRender, vtkTypeBool);


  vtkSetMacro(AlphaBitPlanes, vtkTypeBool);
  vtkGetMacro(AlphaBitPlanes, vtkTypeBool);
  vtkBooleanMacro(AlphaBitPlanes, vtkTypeBool);


  vtkSetMacro(PointSmoothing, vtkTypeBool);
  vtkGetMacro(PointSmoothing, vtkTypeBool);
  vtkBooleanMacro(PointSmoothing, vtkTypeBool);


  vtkSetMacro(LineSmoothing, vtkTypeBool);
  vtkGetMacro(LineSmoothing, vtkTypeBool);
  vtkBooleanMacro(LineSmoothing, vtkTypeBool);


  vtkSetMacro(PolygonSmoothing, vtkTypeBool);
  vtkGetMacro(PolygonSmoothing, vtkTypeBool);
  vtkBooleanMacro(PolygonSmoothing, vtkTypeBool);

  virtual void StereoUpdate();

  virtual void StereoMidpoint();

  virtual void StereoRenderComplete();


  vtkSetClampMacro(AnaglyphColorSaturation, float, 0.0f, 1.0f);
  vtkGetMacro(AnaglyphColorSaturation, float);


  vtkSetVector2Macro(AnaglyphColorMask, int);
  vtkGetVectorMacro(AnaglyphColorMask, int, 2);

  virtual void WindowRemap() {}


  vtkSetMacro(SwapBuffers, vtkTypeBool);
  vtkGetMacro(SwapBuffers, vtkTypeBool);
  vtkBooleanMacro(SwapBuffers, vtkTypeBool);


  virtual int SetPixelData(int /*x*/, int /*y*/, int /*x2*/, int /*y2*/, unsigned char* /*data*/,
    int /*front*/, int /*right*/ = 0)
  {
    return 0;
  }
  virtual int SetPixelData(int /*x*/, int /*y*/, int /*x2*/, int /*y2*/,
    vtkUnsignedCharArray* /*data*/, int /*front*/, int /*right*/ = 0)
  {
    return 0;
  }



  virtual float* GetRGBAPixelData(
    int /*x*/, int /*y*/, int /*x2*/, int /*y2*/, int /*front*/, int /*right*/ = 0)
  {
    return nullptr;
  }
  virtual int GetRGBAPixelData(int /*x*/, int /*y*/, int /*x2*/, int /*y2*/, int /*front*/,
    vtkFloatArray* /*data*/, int /*right*/ = 0)
  {
    return 0;
  }
  virtual int SetRGBAPixelData(int /*x*/, int /*y*/, int /*x2*/, int /*y2*/, float*, int /*front*/,
    int /*blend*/ = 0, int /*right*/ = 0)
  {
    return 0;
  }
  virtual int SetRGBAPixelData(
    int, int, int, int, vtkFloatArray*, int, int /*blend*/ = 0, int /*right*/ = 0)
  {
    return 0;
  }
  virtual void ReleaseRGBAPixelData(float* /*data*/) {}
  virtual unsigned char* GetRGBACharPixelData(
    int /*x*/, int /*y*/, int /*x2*/, int /*y2*/, int /*front*/, int /*right*/ = 0)
  {
    return nullptr;
  }
  virtual int GetRGBACharPixelData(int /*x*/, int /*y*/, int /*x2*/, int /*y2*/, int /*front*/,
    vtkUnsignedCharArray* /*data*/, int /*right*/ = 0)
  {
    return 0;
  }
  virtual int SetRGBACharPixelData(int /*x*/, int /*y*/, int /*x2*/, int /*y2*/,
    unsigned char* /*data*/, int /*front*/, int /*blend*/ = 0, int /*right*/ = 0)
  {
    return 0;
  }
  virtual int SetRGBACharPixelData(int /*x*/, int /*y*/, int /*x2*/, int /*y2*/,
    vtkUnsignedCharArray* /*data*/, int /*front*/, int /*blend*/ = 0, int /*right*/ = 0)
  {
    return 0;
  }



  virtual float* GetZbufferData(int /*x*/, int /*y*/, int /*x2*/, int /*y2*/) { return nullptr; }
  virtual int GetZbufferData(int /*x*/, int /*y*/, int /*x2*/, int /*y2*/, float* /*z*/)
  {
    return 0;
  }
  virtual int GetZbufferData(int /*x*/, int /*y*/, int /*x2*/, int /*y2*/, vtkFloatArray* /*z*/)
  {
    return 0;
  }
  virtual int SetZbufferData(int /*x*/, int /*y*/, int /*x2*/, int /*y2*/, float* /*z*/)
  {
    return 0;
  }
  virtual int SetZbufferData(int /*x*/, int /*y*/, int /*x2*/, int /*y2*/, vtkFloatArray* /*z*/)
  {
    return 0;
  }
  float GetZbufferDataAtPoint(int x, int y)
  {
    float value = 1.0f;
    this->GetZbufferData(x, y, x, y, &value);
    return value;
  }



  vtkGetMacro(NeverRendered, int);


  vtkGetMacro(AbortRender, int);
  vtkSetMacro(AbortRender, int);
  vtkGetMacro(InAbortCheck, int);
  vtkSetMacro(InAbortCheck, int);
  virtual int CheckAbortStatus();

  virtual vtkTypeBool GetEventPending() { return 0; }

  virtual int CheckInRenderStatus() { return this->InRender; }

  virtual void ClearInRenderStatus() { this->InRender = 0; }


  virtual void SetDesiredUpdateRate(double);
  vtkGetMacro(DesiredUpdateRate, double);


  vtkGetMacro(NumberOfLayers, int);
  vtkSetClampMacro(NumberOfLayers, int, 1, VTK_INT_MAX);


  vtkGetObjectMacro(Interactor, vtkRenderWindowInteractor);

  virtual void SetInteractor(vtkRenderWindowInteractor*);

  void UnRegister(vtkObjectBase* o) override;


  void SetDisplayId(void*) override {}
  void SetWindowId(void*) override {}
  virtual void SetNextWindowId(void*) {}
  void SetParentId(void*) override {}
  void* GetGenericDisplayId() override { return nullptr; }
  void* GetGenericWindowId() override { return nullptr; }
  void* GetGenericParentId() override { return nullptr; }
  void* GetGenericContext() override { return nullptr; }
  void* GetGenericDrawable() override { return nullptr; }
  void SetWindowInfo(const char*) override {}
  virtual void SetNextWindowInfo(const char*) {}
  void SetParentInfo(const char*) override {}

  virtual bool InitializeFromCurrentContext() { return false; }


  virtual void SetSharedRenderWindow(vtkRenderWindow*);
  vtkGetObjectMacro(SharedRenderWindow, vtkRenderWindow);
  virtual bool GetPlatformSupportsRenderWindowSharing() { return false; }

  virtual bool IsCurrent() { return false; }

  virtual void SetForceMakeCurrent() {}

  virtual const char* ReportCapabilities() { return "Not Implemented"; }

  virtual int SupportsOpenGL() { return 0; }

  virtual vtkTypeBool IsDirect() { return 0; }

  virtual int GetDepthBufferSize() { return 0; }

  virtual int GetColorBufferSizes(int* /*rgba*/) { return 0; }


  virtual void SetMultiSamples(int);
  vtkGetMacro(MultiSamples, int);


  vtkSetMacro(StencilCapable, vtkTypeBool);
  vtkGetMacro(StencilCapable, vtkTypeBool);
  vtkBooleanMacro(StencilCapable, vtkTypeBool);


  vtkSetMacro(DeviceIndex, int);
  vtkGetMacro(DeviceIndex, int);

  virtual int GetNumberOfDevices() { return 0; }


  vtkGetMacro(UseSRGBColorSpace, bool);
  vtkSetMacro(UseSRGBColorSpace, bool);
  vtkBooleanMacro(UseSRGBColorSpace, bool);
 
  enum : vtkTypeUInt16
  {
    PhysicalToWorldMatrixModified = vtkCommand::UserEvent + 200
  };


  virtual void SetPhysicalViewDirection(double, double, double);
  virtual void SetPhysicalViewDirection(double[3]);
  vtkGetVector3Macro(PhysicalViewDirection, double);


  virtual void SetPhysicalViewUp(double, double, double);
  virtual void SetPhysicalViewUp(double[3]);
  vtkGetVector3Macro(PhysicalViewUp, double);


  virtual void SetPhysicalTranslation(double, double, double);
  virtual void SetPhysicalTranslation(double[3]);
  vtkGetVector3Macro(PhysicalTranslation, double);


  virtual void SetPhysicalScale(double);
  vtkGetMacro(PhysicalScale, double);

  VTK_MARSHALEXCLUDE(VTK_MARSHAL_EXCLUDE_REASON_IS_INTERNAL)
  virtual void SetPhysicalToWorldMatrix(vtkMatrix4x4* matrix);

  VTK_MARSHALEXCLUDE(VTK_MARSHAL_EXCLUDE_REASON_IS_INTERNAL)
  virtual void GetPhysicalToWorldMatrix(vtkMatrix4x4* matrix);

  virtual bool GetDeviceToWorldMatrixForDevice(
    vtkEventDataDevice device, vtkMatrix4x4* deviceToWorldMatrix);


  vtkGetMacro(EnableTranslucentSurface, bool);
  vtkSetMacro(EnableTranslucentSurface, bool);
  vtkBooleanMacro(EnableTranslucentSurface, bool);


  virtual vtkHardwareWindow* GetHardwareWindow();
  virtual void SetHardwareWindow(vtkHardwareWindow* win);
 
protected:
  vtkRenderWindow();
  ~vtkRenderWindow() override;
 
  virtual void DoStereoRender();
 
  vtkRendererCollection* Renderers;
  vtkNew<vtkRenderTimerLog> RenderTimer;
  vtkTypeBool Coverable;
  vtkTypeBool FullScreen;
  int OldScreen[5];
  vtkTypeBool PointSmoothing;
  vtkTypeBool LineSmoothing;
  vtkTypeBool PolygonSmoothing;
  vtkTypeBool StereoRender;
  int StereoType;
  vtkTypeBool StereoCapableWindow;
  vtkTypeBool AlphaBitPlanes;
  vtkRenderWindowInteractor* Interactor;
  vtkSmartPointer<vtkUnsignedCharArray> StereoBuffer; // used for red blue stereo
  vtkSmartPointer<vtkUnsignedCharArray> ResultFrame;
  vtkTypeBool SwapBuffers;
  double DesiredUpdateRate;
  int AbortRender;
  int InAbortCheck;
  int InRender;
  int NeverRendered;
  int NumberOfLayers;
  float AnaglyphColorSaturation;
  int AnaglyphColorMask[2];
  int MultiSamples;
  vtkTypeBool StencilCapable;
  int CapturingGL2PSSpecialProps;
  int DeviceIndex;
 
  bool UseSRGBColorSpace;

  double AbortCheckTime;
 
  vtkRenderWindow* SharedRenderWindow;
 
  // -Z axis of the Physical to World matrix
  double PhysicalViewDirection[3] = { 0.0, 0.0, -1.0 };
  // Y axis of the Physical to World matrix
  double PhysicalViewUp[3] = { 0.0, 1.0, 0.0 };
  // Inverse of the translation component of the Physical to World matrix, in mm
  double PhysicalTranslation[3] = { 0.0, 0.0, 0.0 };
  // Scale of the Physical to World matrix
  double PhysicalScale = 1.0;
 
  bool EnableTranslucentSurface = false;
 
  bool Initialized = false;
 
  vtkSmartPointer<vtkHardwareWindow> HardwareWindow;
 
private:
  vtkRenderWindow(const vtkRenderWindow&) = delete;
  void operator=(const vtkRenderWindow&) = delete;
 
  vtkNew<vtkStereoCompositor> StereoCompositor;
};
 
VTK_ABI_NAMESPACE_END
#endif