[maemo-developers] [matchbox] Compositing manager for small device

[From: Bin Chen]

在 2008-01-16三的 10:20 +0200，Tapani Pälli写道：
> Hello;
> 
> ext Bin Chen wrote:
> > Hello,
> >
> > In PC because the screen resolution is large, so the computation for
> > compositing(such as transparent window) will very large. But in many
> > many small devices the screen resolution is less than 320*240, so the
> > computation should be about 1/50 of PC screen. Many embedded devices
> > has no acceleration at all, but with a small resolution many devices
> > is inherent can do it I think.
> >
> >   
> 
> Yep, with a resolution of 320x240 composite should not be a performance
> problem, more likely a memory problem as every X-window will have a
> offscreen buffer and devices with such screen don't tend to have much
> memory in them. What kind of device are you using?
> 
> > But the engine should be small and high performance, both in code size
> > which will resides in flash. So I think maybe desktop solution not
> > adequate, such as beryl. I want to know if there is any project has
> > been started for this?
> >   
> 
> You might want to try using Matchbox's composite engine (you can enable
> it via configuration options) or try xcompmgr  from freedesktop.org
> which is a 'minimalistic' composite manager.
> 
Thanks.

Yes, I am running my testing system in a 200Mhz CPU with 64M bytes
memory, I think it is enough!

But when I run xdpyinfo, there is no composite extension build with my X
server, how to turn it on? I am using Xfbdev.

When my machine can make X server with composite extension, I will have
a try in matchbox!

Bin