Re: Qemu vnc color depth

[Anthony Liguori <anthony@codemonkey.ws>]

Daniel P. Berrange wrote:
> On Mon, Feb 11, 2008 at 03:18:59PM +0000, Stefano Stabellini wrote:
>>> So, if the client supports the extension use that to notify, otherwise
>>> fallback to doing server-side conversions. 
>> This is a good idea, I just hope it won't take ages to be accepted.
>> I'll work on this.
> 
> There's not really any formal process for VNC extensions. You pretty
> much just post to the vnc mailing list & propose what you want to do
> and unless its absolutely insane you should get given a psuedo encoding
> number reasonably quickly.

We can use the existing space for gtk-vnc although VMware actually 
already has an extension to support server initiated pixel format 
changes.  See http://wiki.multimedia.cx/index.php?title=VMNC

The extension is VMVi (display mode change).  I would much rather just 
implement that in QEMU and in gtk-vnc.

This would also count in my mind as finally fixing SetPixelFormat since 
a client could rely on getting the DisplayModeChange message before the 
server starts using the new pixel format.

> Getting it implement in clients is more fun - but feel free to propose
> patches to the gtk-vnc mailing list - we aim to be broad compatability
> with as many servers as possible & are particularly interested in stuff
> that is useful to virtualization.  Also send ideas for the protocol
> extension there & we can give feedback on how well it'll work from
> the client POV.

Regards,

Anthony Liguori