SurfaceAccessorOsd.h

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/*  Copyright (C) 2003-2021 Free Electron Organization
    Any use of this software requires a license.  If a valid license
    was not distributed with this file, visit freeelectron.org. */

/** @file */

#ifndef __opensubdiv_SurfaceAccessorOsd_h__
#define __opensubdiv_SurfaceAccessorOsd_h__

namespace fe
{
namespace ext
{

/**************************************************************************//**
    @brief Accessor for OpenSubdiv

    @ingroup opensubdiv
*//***************************************************************************/
class FE_DL_EXPORT SurfaceAccessorOsd:
    virtual public SurfaceAccessorCatalog
{
    public:
                        SurfaceAccessorOsd(void);
virtual                 ~SurfaceAccessorOsd(void);

                        using SurfaceAccessorCatalog::set;
                        using SurfaceAccessorCatalog::spatialVector;

                        //* as SurfaceAccessorI
virtual U32             count(void) const;
virtual U32             subCount(U32 a_index) const;

virtual I32             integer(U32 a_index,U32 a_subIndex=0);

virtual SpatialVector   spatialVector(U32 a_index,U32 a_subIndex=0);

virtual void            set(U32 a_index,U32 a_subIndex,I32 a_integer);

    private:

    class Vertex: public SpatialVector
    {
        public:
                    Vertex(void)                                            {}

                    Vertex(Vertex const& a_src):
                        SpatialVector()
                    {   *this=a_src; }

            void    Clear(void* a_void=NULL)
                    {   fe::set(*this); }

            void    AddWithWeight(Vertex const& a_src,float a_weight)
                    {   (*this)[0]+=a_src[0]*a_weight;
                        (*this)[1]+=a_src[1]*a_weight;
                        (*this)[2]+=a_src[2]*a_weight; }

            void    SetPosition(float a_x, float a_y, float a_z)
                    {   fe::set(*this,a_x,a_y,a_z); }

    const   Real*   GetPosition(void) const
                    {   return raw(); }
    };
};

} /* namespace ext */
} /* namespace fe */

#endif /* __opensubdiv_SurfaceAccessorOsd_h__ */