Inventor/nodes/SoTexture2.h

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/*=======================================================================
** Author      : John Rohlf (MMM yyyy)
** Modified by : Thad Beier (MMM yyyy)
** Modified by : Gavin Bell (MMM yyyy)
**=======================================================================*/
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**=======================================================================*/
/*=======================================================================
** Modified by : VSG (MMM YYYY)
**=======================================================================*/


#ifndef  _SO_TEXTURE_2_
#define  _SO_TEXTURE_2_

#include <Inventor/fields/SoSFColor.h>
#include <Inventor/fields/SoSFEnum.h>
#include <Inventor/fields/SoSFImage.h>
#include <Inventor/fields/SoSFFilePathString.h>
#include <Inventor/fields/SoSFNode.h>
#include <Inventor/fields/SoSFBool.h>
#include <Inventor/nodes/SoNode.h>
#include <Inventor/nodes/SoTexture.h>
#include <Inventor/image/SbRasterImage.h>

#include <Inventor/sys/SoGLType.h>
#include <Inventor/threads/SbThreadStorage.h>
#include <Inventor/threads/SbThreadMutex.h>
#include <Inventor/elements/SoTextureImageElement.h>

class SoSensor;

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

//
//  Class: SoTexture2
//
//  Texture node.
//

class SoTexture2;
typedef SbBool PrequalifyFileCallback(const SbString &, void *, SoTexture2 *);

class  SoTexture2 : public SoTexture {

  SO_NODE_HEADER(SoTexture2);

 public:

  typedef void SoTexture2CB(void *userData, SoTexture2 *tex);

  enum Loading {
    AUTO = 0,

    MANUAL
  };
 
  SoSFFilePathString filename;

  SoSFImage image;

  SoSFEnum wrapT;

  SoSFEnum loadingMode;


  SoSFNode renderToTextureProperty;

  void setStartLoadingCallback(SoTexture2CB* cb, void* userData);
  
  void setFinishLoadingCallback(SoTexture2CB* cb, void* userData);

  // Manual loading
  
  void loadTexture();

  SoTexture2();
  
 private:
  virtual void        doAction(SoAction *action);
  virtual void        GLRender(SoGLRenderAction *action);
  virtual void        callback(SoCallbackAction *action);
  virtual void        doActionOnRTT(SoAction *action);

  static void setPrequalifyFileCallBack(PrequalifyFileCallback *p_cb, void *u_data);
  static PrequalifyFileCallback *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; }
  
  // provided only to manage SoRenderToTexture node changes !! 
  virtual void notify(SoNotList *list); // override

  // Manages field dependencies, when one of them change
  virtual void fieldHasChanged( SoField *field ); // override of SoFieldContainer
   
  // Read libimage-format file
  SbBool readImage(void);

  void setIsTextureLoaded(SbBool isTextureLoaded) { m_isTextureLoaded = isTextureLoaded; }

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

  virtual ~SoTexture2();

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

  void checkTexturesFormat( SoState* state );

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

  virtual bool isTextureConfigurationValid(SoState* state, const SoTextureImageElement::SoTexImageData& config);

 private:
  void handleSubTexture(SoState* state);

  SoTextureImageElement::SoTexImageData getTextureConfiguration(SoState* state);

  SbString overrideURL;

  static PrequalifyFileCallback *prequalifyFileCB;
  static void *prequalifyFileCB_udata;
  SbBool prequalifyFileFlag;

  // These keep the image and filename fields in sync.  
  void image_HasChanged(void);  
  void filename_HasChanged(void);
  void wrapS_HasChanged(void);  
  void wrapT_HasChanged(void);
  void renderToTextureProperty_HasChanged(void);
  void maxAnisotropy_HasChanged(void);
  void useAutoMipmap_HasChanged(void);
  void internalFormat_HasChanged(void);

  SbThreadMutex m_mutex;



  void setTrueInternalFormat();
  InternalFormat m_trueInternalFormat;

  SbRasterImage* m_compressedImage;

  // Load callbacks attributes
  SoTexture2CB *m_loadStartCB;
  SoTexture2CB *m_loadFinishCB;

  void *m_loadStartCBData;
  void *m_loadFinishCBData;

  // Tells if the texture is loaded or not (not necessarily displayed)
  SbBool m_isTextureLoaded;
  SbBool m_isTextureRGBE;

  int m_numRenderCaches;
};

#ifdef _MSC_VER
#pragma warning( pop )
#endif

#endif /* _SO_TEXTURE_2_ */

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Open Inventor Toolkit reference manual, generated on 12 Feb 2024
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