X compression techniques (was Re: VNC server based on kdrive using damage extension?)

[Kurt Pfeifle]

Egbert Eich wrote:

> I was suggesting to review the technology
> and see if it's worthwhile to integrate some parts of it into
> the server. Gian Filippo replied to this basically saying that
> the merit of keeping it separate is to avoid the introduction of
> another complicated element to the server at a neglegtible cost
> of performance. And he may be right.
> On the other hand I've talked to him a while back about the license
> issue and he didn't seem to be entirely opposed to relicense this
> software should we find this useful.

I don't know what Gian Filippo discussed with you face to face,
as I wasn't present.

> He also expressed the same thing here on the list.
> 

What he expressed on this list was this, in response to Alexander
Gottwald:

#>>(Gian Filippo:)
#>>For example we modified the Xwin X server to not rely on
#>>Xlib for rootless operation. The code is there, if anybody
#>>is interested.
#>
#> (Alexander Gottwald:)
#> you mean the Cygwin/X server? These changes are surly interesting to
#> us.
#
# (Gian Filippo:)
# http://www.nomachine.com/download/nxsources/nxwin/nxwin-1.3.0-1.tar.gz
#
# Let me know if you need any info. The code is under the
# GPL now, but we can re-license it under the X11 license.
# Just let me know.

To me, this is only related to the nxwin package which is the
NoMachine-modified Cygwin/X-server for Windows.

I think it is not appropriate to draw the conclusion that this
offer automatically extends to all NX software.

I must admit, that I first also thought "Wow! How 'liberal'.
Why don't they want to protect their code more for the purpose
of keeping it Free Software?"  Only very much later, on second
sight, it occurred to me that the "offer" was a very specific
one. I am sure, Gian Filippo will comment on this if he comes
across your conclusion.

Cheers,
Kurt