[Qt5-feedback] OpenGL ES 2.0 requirement

[gunnar.sletta at nokia.com]

For those worried about software GL performance, we have some numbers of QML 2 on LLVMpipe at the bottom of: 
http://labs.qt.nokia.com/2011/05/31/qml-scene-graph-in-master/

-
Gunnar

On Jun 1, 2011, at 11:29 AM, ext Konrad Rosenbaum wrote:

> On Wed, June 1, 2011 10:46, Maximilian Lang wrote:
>> I'm very confused. So in short for me. Currently I'm making projects based
>> on an omap-am1808 processor (http://www.hawkboard.org/).
>> So no graphics acceleration, no open gl es etc. are available on this
>> processor. So Qt 5 will not run on this system?? So i have to stay on Qt 4
>> and QML 1?
> 
> I don't think you need to worry. The Hawkboard seems to be quite complete
> from what I could gather in a few minutes.
> 
> When looking around I saw that there seems to be an Android port for it,
> which means OpenGL ES is available (it is a requirement for Android).
> 
> You can check whether you have OpenGL available by looking for files
> called libGL.so or libGLESv2.so in one of the library directories.
> 
> BTW: I'm much less worried than I used to be a week ago - I found that
> even my Linux installation in a VirtualBox can do the OpenGL demos of Mesa
> with acceptable performance (25fps at full screen) in software render mode
> and it works out of the box. It seems Mesa is part of Xorg for some time
> now and it automatically detects whether it can do hardware rendering or
> whether it needs to switch to software rendering.
> 
> Maybe someone with more background knowledge in how modern GUI backends
> work could enlighten us: from researching OpenGL a bit I got the
> impression that accelerated 3D and 2D rendering happen in the same
> pipelines on the layers close to the hardware, which would mean that if an
> X11 or framebuffer driver works fine today it would likely also work fine
> with Qt5 - is that impression correct?
> 
> 
> 
>    Konrad
> 
> _______________________________________________
> Qt5-feedback mailing list
> Qt5-feedback at qt.nokia.com
> http://lists.qt.nokia.com/mailman/listinfo/qt5-feedback