Inventor/nodes/SoTextureCubeMap.h

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/*=======================================================================
** Author      : VSG (MMM YYYY)
**=======================================================================*/


#ifndef  _SO_TEXTURE_CUBE_MAP_
#define  _SO_TEXTURE_CUBE_MAP_

#include <Inventor/fields/SoSFColor.h>
#include <Inventor/fields/SoSFEnum.h>
#include <Inventor/fields/SoSFImage.h>
#include <Inventor/fields/SoMFFilePathString.h>
#include <Inventor/fields/SoSFBool.h>
#include <Inventor/fields/SoSFNode.h>
#include <Inventor/nodes/SoNode.h>
#include <Inventor/nodes/SoTexture.h>
#include <Inventor/image/SbRasterImage.h>
#include <Inventor/caches/SoGLTexCacheList.h>
#include <Inventor/sys/SoGLType.h>
#include <Inventor/threads/SbThreadStorage.h>

class SoSensor;
class SbThreadRWMutex;

#ifdef _MSC_VER
#pragma warning( push )
#pragma warning(disable:4251)
#endif

//
//  Class: SoTextureCubeMap
//
//  Texture node.
//

class SoTextureCubeMap;
typedef SbBool CubeMapPrequalifyFileCallback(const SbString &, void *, SoTextureCubeMap *);

class  SoTextureCubeMap : public SoTexture {

  SO_NODE_HEADER(SoTextureCubeMap);

 public:
 
  SoMFFilePathString  filenames;

  SoSFImage           imagePosX;
  SoSFImage           imagePosY;
  SoSFImage           imagePosZ;
  SoSFImage           imageNegX;
  SoSFImage           imageNegY;
  SoSFImage           imageNegZ;

  SoSFEnum            wrapT;
  SoSFEnum            wrapR;

  SoSFNode renderToTextureProperty;


  SoSFFloat HDRIExposure;

  SoTextureCubeMap();

 private:
  virtual void        doAction(SoAction *action);
  virtual void        GLRender(SoGLRenderAction *action);

  static void setPrequalifyFileCallBack(CubeMapPrequalifyFileCallback *p_cb, void *u_data);
  static CubeMapPrequalifyFileCallback *getPrequalifyFileCallBack( void *&user_data );
  void allowPrequalifyFile(SbBool);
  SbBool isAllowPrequalifyFile() const;


 private:
  static void initClass();
  static void exitClass();
  const SbString &getOverrideURL() { return overrideURL; }
  void setOverrideURL(const SbString &path) { overrideURL = path; }

  virtual void notify(SoNotList *list);

  // Manages field dependencies, when one of them change
  virtual void fieldHasChanged( SoField *field ); // override of SoFieldContainer

  virtual GLenum getGLInternalFormat(SoSFImage& image, float quality = 1.0);

 private:
  // Reads stuff into instance. Returns FALSE on error.
  virtual SbBool readInstance(SoInput *in, unsigned short flags);

  virtual ~SoTextureCubeMap();

  virtual void copyContents(const SoFieldContainer *fromFC, SbBool copyConnections);
  
  void checkTexturesFormat( SoState* state );

 private:


  SbRasterImage* m_rasterHDRIImageRBE[6];

  SbString overrideURL;

  static void reformatImage(unsigned char * &bytes, int w, int h, int nc, int newNC);
  static void fillCubeMapTextures(int i);

  static CubeMapPrequalifyFileCallback *prequalifyFileCB;
  static void *prequalifyFileCB_udata;
  SbBool prequalifyFileFlag;
 
  // Index of filenames, corresponding to the 6 faces
  enum IdxIMAG { IPosX=0, IPosY=1, IPosZ=2, INegX=3, INegY=4, INegZ=5 }; 

  // These methods manage dependencies for field modifications 
  void image_HasChanged( SoSFImage *image, IdxIMAG _idxImag );
  void filenames_HasChanged(void);
  void wrapS_HasChanged(void);
  void maxAnisotropy_HasChanged(void);
  void wrapT_HasChanged(void);
  void wrapR_HasChanged(void);
  void renderToTextureProperty_HasChanged(void);
  void useAutoMipmap_HasChanged(void);
  void internalFormat_HasChanged(void);
  void HDRIExposure_HasChanged(void);

  // Display list info for this texture:
  SbThreadStorage< SoGLTexCacheList* > m_texList;

  SbThreadRWMutex  *m_mutex;

  SbRasterImage* m_compressedImage[6];

  int m_numRenderCaches;
};

#ifdef _MSC_VER
#pragma warning( pop )
#endif

#endif /* _SO_TEXTURE_CUBE_MAP_ */

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Open Inventor Toolkit reference manual, generated on 12 Feb 2024
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