[Spice-devel] Spice backend for Weston

[David Jaša]

[resending to the list, Юрий, please reply to this message]

Hi,

Shvedov Yury píše v Po 29. 04. 2013 v 16:37 +0400:
> Hello.
> 
> As part of my course work, I've developed spice backend for Weston (the 
> reference implementation of Wayland compositor). 

Nice!

> Currently this uses
> Wayland's pixman-based renderer, and shares rendered frames over spice
> protocol. 

Have you looked into possibility of rendering & sending of each buffer
(is it the correct term?) and sending them to the client independently
so that final compositing could be deferred to the client?

IMO that approach has the biggest potential of b/w saving for use cases
such as window move or "pop-up window appears and it's dismissed".

> With my backend, it is possible to communicate with wayland
> desktop using spice client.
> 
> Current implementation is proof-of-concept only. Only shm buffers are 
> supported, and no attempt is made to optimize bandwidth. Performance is 
> expectedly bad. The first goal was just to make it working, and now it 
> works - at least if client and server are on the same physical host.
> 
> In future, I plan to utilize GL both for rendering and calculating 
> difference between frames. With this approach I hope to get both 
> full-functional desktop and minimize server and bandwidth requirements.
> 

That sounds like something that John A. Sullivan III would
appreciate. :)

David

> My code is available at
> https://github.com/ein-shved/compositor-spice.git
> 
> Comments and/or bugfixes are greatly appreciated.
> 
> P.S.
> I know that recently RDP backend was added to Weston.
> I was not aware of that while working on my backend.
> I hope it will be possible to share effort with that project to build 
> better remote wayland solutions.
> _______________________________________________
> Spice-devel mailing list
> Spice-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/spice-devel

-- 

David Jaša, RHCE

SPICE QE based in Brno
GPG Key:     22C33E24 
Fingerprint: 513A 060B D1B4 2A72 7F0D 0278 B125 CD00 22C3 3E24



-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/x-pkcs7-signature
Size: 3790 bytes
Desc: not available
URL: <http://lists.freedesktop.org/archives/spice-devel/attachments/20130502/3b611e4e/attachment.bin>