GPS application for QTExtended 4.4.3

tvuillaume at tvuillaume at
Wed Nov 4 21:10:13 CET 2009

Hi Radek,

Taking a closer look, it may actually not be pixmap drawing performances. It looks like interruption when moving, that may just come from touch screen event coming irregularly, or anything else delaying the refresh of the map.

I am looking forward for the new kernel, it would probably solve the issue!


----- Mail Original -----
De: "Radek Polak" <psonek2 at>
À: "List for Openmoko community discussion" <community at>
Envoyé: Mercredi 4 Novembre 2009 16h17:08 GMT +01:00 Amsterdam / Berlin / Berne / Rome / Stockholm / Vienne
Objet: Re: GPS application for QTExtended 4.4.3

On Wednesday 04 of November 2009 08:08:06 tvuillaume at wrote:

> I will continue to maintain it for my personal usage. I have no idea if it
>  may interest someone, but, if any interest, I released the package, the
>  source code, and some documentation here:

This application is just great. Probably everybody is interested :)

> Unfortunately, pixmap drawing performances looks degraded on QtMoko (I
>  tested with v14), impacting performances when moving in the map. This is
>  much better on the original QtExtended 4.4.3. If anybody have an idea
>  about where it may come from, and if something can be done to improve, I
>  would be interested.

There are 2 things different in QtMoko. 2.6.29 kernel and Qt 4.5. I think Qt 
4.5 improved the performance. The kernel can be the problem. I am now testing 
2.6.31 kernel and performance of your app is good. Also scrolling in web 
browser improved with 2.6.31 so it can be something in 2.6.29 kernel.

Thanks for this nice application.



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