MeVisLab/Standard/Sources/Inventor/SoShader/Inventor/elements/SoGLVertexAttributeElement.h

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// **InsertLicense** code



#ifndef  _SO_GL_VERTEX_ATTRIBUTE_ELEMENT_
#define  _SO_GL_VERTEX_ATTRIBUTE_ELEMENT_

#include "SoShaderSystem.h"
#include <Inventor/elements/SoAccumulatedElement.h>
#include <Inventor/SoLists.h>
#include <Inventor/misc/SoVBO.h>
#include <vector>

struct INVENTOR_SHADER_API SoVertexAttributeInfo
{
public:
  SoVertexAttributeInfo();

  SbString _name;

  SoNode*  _node;

  const void* _data;
  uint32_t    _numBytes;
  uint32_t    _numValues;

  GLenum _type;
  int    _numComponents;
  bool   _normalized;

  SoVBO    _vbo;

  GLint    _index;

  bool _shouldFlipRGBAOnLittleEndian;
};

class SoVertexShape;
class SoGLRenderAction;

class INVENTOR_SHADER_API SoGLVertexAttributeElement : public SoAccumulatedElement
{
  typedef SoAccumulatedElement inherited;

  SO_ELEMENT_HEADER(SoGLVertexAttributeElement);
  
  public:
    typedef std::vector<SoVertexAttributeInfo*> AttributeList;

    virtual void init(SoState *state);

    static  void add(SoState *state, SoVertexAttributeInfo* info);

    static  void clear(SoState *state, SoNode *node);

    static  const AttributeList& get(SoState *state);

    virtual void push(SoState *state);

    SoINTERNAL public:

    static void initClass();

  protected:
    static void enableVertexAttributesCB(SoVertexShape* shape, SoGLRenderAction* action, bool useVbo, uint32_t numVertices);
    static void disableVertexAttributesCB(SoVertexShape* shape, SoGLRenderAction* action, bool useVbo, uint32_t numVertices);

    AttributeList _attributes;
};

#endif