OSGTileLoadBalancer.inl

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#include <OSGConfig.h>

OSG_BEGIN_NAMESPACE

inline TileLoadBalancer::RegionLoad::RegionLoad(TileGeometryLoad *load):
    _load(load)
{
}

inline void TileLoadBalancer::RegionLoad::updateCost(const Int32 wmin[2],
                                                   const Int32 wmax[2])
{
    Real32 faces  =Real32(_load->getFaces());
    Real32 visible;
    Int32 vismin[2];
    Int32 vismax[2];

    visible=_load->getVisibleFraction(wmin,wmax,vismin,vismax);
    if(visible)
    {
        _visibleFaces=faces*visible;
        _invisibleFaces=faces-_visibleFaces;
        _pixel=Real32(
            (vismax[0] - vismin[0] + 1)*
            (vismax[1] - vismin[1] + 1));
    }
    else
    {
        _pixel=0;
        _invisibleFaces=0;
        _visibleFaces=0;
    }
}

inline Real32 TileLoadBalancer::RegionLoad::getCost(const RenderNode &renderNode)
{
    return renderNode.estimatePerformance(_invisibleFaces,
                                          _visibleFaces,
                                          _pixel);
}

inline Real32 TileLoadBalancer::RegionLoad::getCost(const RenderNode &renderNode,
                                                    const Int32 wmin[2],
                                                    const Int32 wmax[2]) const
{
    Int32 vismin[2];
    Int32 vismax[2];
    Real32 visibleFaces;
    Real32 invisibleFaces;
    Real32 visible;

    Real32 faces  =Real32(_load->getFaces());
    visible=_load->getVisibleFraction(wmin,wmax,vismin,vismax);
    if(visible==0.0)
        return 0.0;
    visibleFaces=faces*visible;
    invisibleFaces=faces-visibleFaces;
    Real32 pixel=Real32(
        (vismax[0] - vismin[0] + 1)*
        (vismax[1] - vismin[1] + 1));
    return renderNode.estimatePerformance(invisibleFaces,
                                          visibleFaces,
                                          pixel);
}

inline TileGeometryLoad * TileLoadBalancer::RegionLoad::getLoad(void)
{
    return _load;
}

OSG_END_NAMESPACE

#define OSG_TILE_LOAD_BALANCER_INLINE_CVSID "@(#)$Id:$"

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