SoExtTexture2.h

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/*=======================================================================
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 ***                        BORDEAUX, FRANCE                                        ***
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**=======================================================================*/
/*=======================================================================
** Author      : C. OGNIER (Oct 2000)
**=======================================================================*/
 
#ifndef _SO_EXTTEXTURE_2_
#define _SO_EXTTEXTURE_2_
 
#include <Inventor/nodes/SoTexture.h>
#include <Inventor/fields/SoSFInt32.h>
#include <Inventor/fields/SoSFFilePathString.h>
#include <Inventor/fields/SoSFTime.h>
#include <Inventor/threads/SbThreadStorage.h>
 
#include <Inventor/image/SbRasterImage.h>
#include <Inventor/sys/SoGLType.h>
 
class SoSensor;
class SoDither;
 
#ifdef _MSC_VER
#pragma warning( push )
#pragma warning(disable:4251)
#endif
 
//
//  Class: SoExtTexture2
//
//  Extented 2D Texture node.
//
 
class SoExtTexture2;
typedef SbBool ExtPrequalifyFileCallback(const SbString &, void *, SoExtTexture2 *);
 
SO_PIMPL_PUBLIC_DECLARATION(SoExtTexture2);
 
class  SoExtTexture2 : public SoTexture {
  
  SO_NODE_HEADER(SoExtTexture2);
 
  SO_PIMPL_PUBLIC_HEADER(SoExtTexture2);
  
 public:
  typedef void SoExtTexture2CB(void *userData, SoExtTexture2 *tex);
 
   enum Sync 
   {
    SYNCHRONOUS = 0,
 
    ASYNCHRONOUS
  };
 
  enum Loading {    
    AUTO = 0,
 
    MANUAL
  };
 
  SoSFFilePathString filename;
 
  SoSFEnum wrapT;
 
  SoSFBool loadingStatus;
 
  SoSFEnum syncMode;
 
  SoSFEnum loadingMode;
 
  SoSFInt32 loadingThreadPriority;
 
  SoExtTexture2();
 
  static void setPrequalifyFileCallBack(ExtPrequalifyFileCallback *p_cb, void *u_data);
 
  void allowPrequalifyFile(SbBool);
  
  void getImageSize(SbVec2s &size, int &nc);
  
  static void setMemorySpace(double megaBytes);
 
  static double getMemorySpace();
 
  static double getGlobalMemoryUsed();
  
  static void useTexturePalette(SbBool value);
  
  // Load callbacks
  
  void addOnLoadStartCB(SoExtTexture2CB* cb, void* userData);
  
  void addOnLoadFinishCB(SoExtTexture2CB* cb, void* userData);
  
  void addOnUnloadCB(SoExtTexture2CB* cb, void* userData);
 
  // Manual loading
  
  void loadTexture();
 
 private:
  virtual void doAction(SoAction *action);
  virtual void GLRender(SoGLRenderAction *action);
  virtual void write(SoWriteAction* action);
  
 private:
  
  static void initClass();
  static void exitClass();
    
  // Get system time at last traversal
  SoSFTime sysTime;
  
  // Manages field dependencies, when one of them change
  virtual void fieldHasChanged( SoField *field ); // override of SoFieldContainer
 
  virtual void copyContents(const SoFieldContainer *fromFC, 
                          SbBool copyConnections);
 
 private:
 
  // Reads stuff into instance. Returns FALSE on error.
  virtual SbBool readInstance(SoInput *in, unsigned short flags);
  
  virtual ~SoExtTexture2();
   
 
};
 
#ifdef _MSC_VER
#pragma warning( pop )
#endif
 
#endif /* _SO_EXTTEXTURE_2_ */