SoVertexProperty.h

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**=======================================================================*/
/*=======================================================================
** Author      : Alan Norton (MMM yyyy)
** Modified by : Gavin Bell (MMM yyyy)
**=======================================================================*/
/*=======================================================================
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**=======================================================================*/
/*=======================================================================
** Modified by : VSG (MMM YYYY)
**=======================================================================*/
 
 
 
#ifndef  _SO_VERTEX_PROPERTY
#define  _SO_VERTEX_PROPERTY
 
#include <Inventor/SbVertexAttributeBinding.h>
 
#include <Inventor/fields/SoMFUInt32.h>
#include <Inventor/fields/SoMFVec3f.h>
#include <Inventor/fields/SoMFVec2f.h>
#include <Inventor/fields/SoSFBool.h>
#include <Inventor/fields/SoSFEnum.h>
#include <Inventor/nodes/SoNode.h>
 
#ifdef _MSC_VER
#pragma warning( push )
#pragma warning(disable:4251)
#endif
 
class SoColorPacker;
 
//
//  Class: SoVertexProperty
//
//  SoNode class that manages arrays of data for GLVertex Array Extension.
//  Data arrays include: vertices, normals, tangents, colors, texture coordinates.
//  Also has NormalBinding, TangentBinding and MaterialBinding fields
//
 
namespace inventor
{
  namespace cache
  {
    class VertexProperty;
  }
}
class  SoVertexProperty : public SoNode {
 
  SO_NODE_HEADER(SoVertexProperty);
 
 public:
 
  SoMFVec3f vertex;
  SoMFVec2f texCoord;
  SoMFVec3f texCoord3;
 
  SoSFBool forceSending; 
 
  SoMFVec3f normal;
 
  SoMFVec3f tangent;
 
  SoSFEnum normalBinding;
 
  SoSFEnum tangentBinding;
 
  SoMFUInt32 orderedRGBA;
 
  SoSFEnum materialBinding;
 
  enum Binding {
    OVERALL = SbVertexAttributeBinding::OVERALL,
    PER_PART = SbVertexAttributeBinding::PER_PART,
    PER_PART_INDEXED = SbVertexAttributeBinding::PER_PART_INDEXED,
    PER_FACE = SbVertexAttributeBinding::PER_FACE,
    PER_FACE_INDEXED = SbVertexAttributeBinding::PER_FACE_INDEXED,
    PER_VERTEX = SbVertexAttributeBinding::PER_VERTEX,
    PER_VERTEX_INDEXED = SbVertexAttributeBinding::PER_VERTEX_INDEXED
  };
 
  SoVertexProperty();
 
  inline virtual void setOverride(const SbBool state)
  { override.setValue(state); }
 
  inline virtual SbBool isOverride() const
  { return override.getValue(); }
 
 private:
  virtual void doAction(SoAction *action);
  virtual void GLRender(SoGLRenderAction *action);
  virtual void getBoundingBox(SoGetBoundingBoxAction *action);
  virtual void callback(SoCallbackAction *action);
  virtual void pick(SoPickAction *action);
  virtual void getPrimitiveCount(SoGetPrimitiveCountAction *action);
 
  SbBool isTransparent();
 
 private:
 
  class ValidityBits
  { 
    public:
        enum { NUM_FIELDS = 6 };
 
        union Data
        {
 
            struct foo
            {
                bool coordinates : 1;
                bool normals : 1;
                bool tangents : 1;
                bool colors : 1;
                bool textureCoords : 1;
                bool attributes : 1;
                bool indices : 1;
            } attr;
 
            unsigned char bits;
 
        } m_data;
 
        ValidityBits()
        {
            invalidate();
        }
 
        inline void reset()
        {
          m_data.bits = 0xFF;
        }
 
        inline void invalidate()
        {
            m_data.bits = 0;
        }
 
        inline bool isInvalid() const
        {
      return m_data.bits == 0;
        }
 
        inline bool isValid() const
        {
      return (m_data.bits&((1 << NUM_FIELDS) - 1)) == ((1 << NUM_FIELDS) - 1);
        }
  };
 
  static void         initClass();
  static void         exitClass();
 
  SoSFBool override;
 
  // set NormalElement, LazyElement and TextureElement
  void setupElements(SoState* state);
 
  SoColorPacker *getColorPacker2() const;
  enum Transparent {
    YES,
    NO,
    UNKNOWN
  };
 
  inline uint32_t getVextexTimeStamp() const
  { return m_vertexTimeStamp; }
 
  // check for transparency when field changes.
  virtual void        notify(SoNotList *list);
 
 private:
  virtual ~SoVertexProperty();
 
 private:
  // store whether transparent or not
  Transparent transparent;
  uint32_t m_vertexTimeStamp;
  mutable SoColorPacker *m_colorPacker2;
};
 
 
#ifdef _MSC_VER
#pragma warning( pop )
#endif
 
#endif /* _SO_VERTEX_PROPERTY */