Re: [Gzz] Asko 2002-10-29 (CullingCoordSys)

[Tuomas Lukka]

On Wed, Oct 30, 2002 at 10:03:57AM +0200, Asko Soukka wrote:
> Tue, 29 Oct 2002, Tuomas Lukka kirjoitti:
> > >   * made finally only one coordsys which can be created both with the
> > >     distinct test coordsys or without: GLVobCoorder.cull(parent, clip) or
> > >     GLVobCoorder.cull(parent, test, clip)
> > How?
> 
> GLVobCoorder.java:
>     public int cull(int parent, int clip) {
>       return cull(parent, parent, clip);
>     }
> 
>     public int cull(int parent, int test, int clip);

Ahh, of course, implemented on Java side. Good.

> So, actually there is only CullingCoordSys with three parents, but when
> called only with two of them, it uses the "parent" also as "test".
> AFAIK in this case (called with only two parents)
> CoordSys::CullingCoordSys' super and testSuper will both be pointing
> to the same CoordSys and no resources are wasted (no third parent CoordSys
> is created)...

There are exactly 8 bytes wasted: another integer on the parents list,
and a pointer in the C++ structure.

But I guess that's ok ;)

(... (deep voice) but when I was young, we'd have been glad to HAVE 8 bytes...) 
;)

        Tuomas