[Development] iMX6 EGLGS 2D (QtWidgets) painting acceleration

[Vlad Stelmahovsky]

have you tried QOpenGlWidget ?

otherwise you dont have other options: plain QWidget's does not HW 
accelerated

or, you can extend QtCharts to be more QtQuicker and more featured. 
everyone will be happy :)

On 8/29/18 11:39 AM, Denis Shienkov wrote:
> Hi all.
>
> I have an Apalis iMX6 board with the Yocto's image with the working 
> 'eglfs' and 'linuxfb'  backends (without of X11 support).
>
> I need to create a 'pure' QtWidgets application, where I need to use a 
> real-time plotting with the Qwt library (using the Qt Quick is not an 
> option, as there the QtCharts is not ready for usage) .
>
> But, I'm sadly surprised that a 2D painting takes ~100% CPU loading as 
> with the 'eglfs' and as with 'linuxfb' backends. It is not an 
> acceptable, because, e.g. on Desktop Linux/Windows it takes ~4-5% CPU 
> loading.
>
> Is any workarounds for this? Maybe I need to re-build the Yocto's 
> image to enable the X11 'xcb' support?
>
> BR,
> Denis
>
>
>
> _______________________________________________
> Development mailing list
> Development at qt-project.org
> http://lists.qt-project.org/mailman/listinfo/development
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.qt-project.org/pipermail/development/attachments/20180829/74bbf9a2/attachment.html>