Inventor/elements/SoTextureUnitElement.h

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/*=======================================================================
 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.),            ***
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 ***  SPECIFIED  IN THE LICENSE ARE  NOT TO BE  UNDERTAKEN  EXCEPT WITH PRIOR       ***
 ***  WRITTEN AUTHORIZATION OF FEI S.A.S.                                           ***
 ***                                                                                ***
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 ***  CLAUSE  AT FAR 52.227-19  OR SUBPARAGRAPH  (C)(1)(II)  OF  THE RIGHTS IN      ***
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 ***                   COPYRIGHT (C) 1996-2020 BY FEI S.A.S,                        ***
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**=======================================================================*/
/*=======================================================================
** Author      : R. ALBOU (May 2002)
**=======================================================================*/

#ifndef  _SO_TEXTURE_UNIT_ELEMENT_
#define  _SO_TEXTURE_UNIT_ELEMENT_

#include <Inventor/SbPList.h>
#include <Inventor/elements/SoAccumulatedElement.h>

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

SoEXTENDER_Documented class  SoTextureUnitElement : public SoAccumulatedElement {
  SO_ELEMENT_HEADER(SoTextureUnitElement) ;

 public:
  
#if 1             SoDEPRECATED enum MappingMethod {

    BUMP_MAPPING,
    IMAGE_MAPPING
  } ;
SoDEPRECATED
  static void set( SoState *state, SoNode *node, int unit, MappingMethod mappingMethod );
SoDEPRECATED
  static const MappingMethod* getMappingMethods( SoState *state );
SoDEPRECATED
  static MappingMethod getActiveMappingMethod( SoState *state );
#endif 
  static SbBool activateTextureUnit(SoState *state, int unit) ;

  virtual void push(SoState *state) ;

  virtual void pop(SoState *, const SoElement *prevTopElement) ;

  static const SbIntList& getTextureUnits(SoState *state) ;

  static int getActiveTextureUnit(SoState *state) ;

  static int getMaxTextureUnit(SoState* state=NULL) ;

  static SbBool isMultiTexturing(SoState *state, SbIntList &imageTexUnitList) ;

  static SbBool shouldSendGLData(SoState *state) ;

  static int isImageMapping(SoState *state) ;

  static int isBumpMapping(SoState *state) ;

private:

  virtual void commonInit();

  virtual void init(SoState *state);

 private:

  // Initializes the SoTextureUnitElement class
  static void initClass() ;
  static void exitClass() ;

  static uint32_t getFixedPipelineMaxTextureUnit(SoState* state) ;

  static SbBool isMultitexturingAvailable(SoState* state);

 private:
  // Sets the element
  virtual void setElt(SoState* state, SoNode *node, const int unit, MappingMethod mappingMethod) ;
  virtual void setUnit(SoState* state, const int unit);

  int       m_startIndex ;
  int       m_textureUnit ;

  // List of texture units
  SbIntList m_textureUnits ;

  // Mapping method associated to each texture unit.

  virtual ~SoTextureUnitElement() ;

  MappingMethod& getMapping(const size_t unit) const;

  virtual SbBool matches(const SoElement* element) const;
  virtual SoElement* copyMatchInfo() const;

private:
  // List of mapping methods per texture unit
  mutable std::vector<MappingMethod> m_mappingMethods ;

  // used to indicate that multitexturing has been disable through OIV_MULTITEXTURING envvar
  static SbBool s_multiTexturingAllowed;
  static int s_multitexturing_extensionID;
} ;
/*----------------------------------------------------------------------------*/

#ifdef _MSC_VER
#pragma warning( pop )
#endif

#endif // _SO_TEXTURE_UNIT_ELEMENT_

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Open Inventor Toolkit reference manual, generated on 22 Jul 2025
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