Re: Questions about gnome-mag + orca

["Carlos Diógenes" <cerdiogenes gmail com>]

2008/3/27, Aurelian Radu <ricaradu gmail com>:
> Thank you, Carlos. I am replying to your email using compiz-fusion (the CPU
> usage barely reaches 3-4%. It would be great if gnome-mag were as easy on
> the CPU.

This is due the fact that compiz uses OpenGL to do it's rendering and
it's code is also better to interact with the Xserver.

>
> When you say that the algorithm can be calculated in the GPU, you mean there
> is a setting I can change to do that, or is this a feature that needs to be
> implemented?

The feature must be implemented in gnome-mag. This is not so
difficult, since there are lots of good code that do this, these just
have to be merged inside gnome-mag. Making this will improve the
Xrender performance (the actual implementation) and will also give 3D
acceleration support.

>
> Thank you,
>
> Aurelian
>
>
> On Thu, Mar 27, 2008 at 6:02 PM, Carlos Diógenes <cerdiogenes gmail com>
> wrote:
> > Hi Aurelian,
> >
> > Probably in a Core 2 Duo you will have 50% of CPU usage (100% of one
> > core). This is not a bug, this is due the fact that the magnification
> > algorithm is CPU intensive. This can be solved using the video card
> > processor, that is by far fastest for this type of operation.
> >
> > If you pan a lot this will probably heat and battery life.
> >
> > I'm not developing gnome-mag anymore, but probably the GNOME Outreach
> > Accessibility Program will adress these issues, but I think that this
> > will take a while, one or two GNOME releases.
> >
> > Best regards,
> > Carlos.
> >
> > 2008/3/27, Aurelian Radu <ricaradu gmail com>:
> >
> >
> >
> > > Hello list,
> > >
> > > Firstly, I'd like to thank the developers of gnome-mag and orca for the
> > > significant improvements in the area of magnification. The great orca
> > > developers listened to my suggestion and created the option to have the
> > > cursor centered while editing and navigating. Kudoz !
> > >
> > > Now I have a few questions:
> > > My desktop has an AMD Athlon64 single-core (1.8 GHz) and the CPU soars
> to
> > > 100% when I move the mouse. Is this a bug or a limitation? I'm planning
> on
> > > buying a notebook with a Core 2 Duo (T7250 or better) Would this more
> > > powerful CPU still soar to 100%? Will it affect heat and battery life?
> > >
> > > I now have an NVIDIA GF 6600 GT. Would gnome-mag run smoothly on Intel
> GMA
> > > X3100 or NVIDIA 8400 GS?
> > >
> > > Thanks for taking the tine to read this,
> > >
> > > Aurelian
> > >
> > > _______________________________________________
> > >  gnome-accessibility-list mailing list
> > >  gnome-accessibility-list gnome org
> > >
> http://mail.gnome.org/mailman/listinfo/gnome-accessibility-list
> > >
> > >
> >
> >
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