C++ (Cpp) NodeRef::prefetchW Examples

Example #1

File: bvh_refit.cpp Project: appleseedhq/appleseed-deps

    BBox3fa BVHNRefitter<N>::recurse_bottom(NodeRef& ref)
    {
      /* this is a leaf node */
      if (unlikely(ref.isLeaf()))
        return leafBounds.leafBounds(ref);
      
      /* recurse if this is an internal node */
      AlignedNode* node = ref.alignedNode();

      /* enable exclusive prefetch for >= AVX platforms */      
#if defined(__AVX__)      
      ref.prefetchW();
#endif      
      BBox3fa bounds[N];

      for (size_t i=0; i<N; i++)
        if (unlikely(node->child(i) == BVH::emptyNode))
        {
          bounds[i] = BBox3fa(empty);          
        }
      else
        bounds[i] = recurse_bottom(node->child(i));
      
      /* AOS to SOA transform */
      BBox3vf<N> boundsT = transpose<N>(bounds);
      
      /* set new bounds */
      node->lower_x = boundsT.lower.x;
      node->lower_y = boundsT.lower.y;
      node->lower_z = boundsT.lower.z;
      node->upper_x = boundsT.upper.x;
      node->upper_y = boundsT.upper.y;
      node->upper_z = boundsT.upper.z;

      return merge<N>(bounds);
    }