[Development] Configuring qtbase with --opengl es2 on arm* devices

[Sean Harmer]

Hi,

On Friday, 8 September 2017 15:54:23 BST Lisandro Damián Nicanor Pérez Meyer 
wrote:
> To the best of my knowledge there are almost no arm board with opengl
> desktop support, but there are boards with es2 support.
> 
> Now the question is: is it worth to enable es2 support if there are no
> specific hardware specified? (ie, like vivante or bcrm2) Or maybe
> there are board with benefit by just using -opengl es2?
> 
> I came to this by reading
> https://wiki.qt.io/I.MX-6#i.MX6_support_in_Qt_5.2_and_up
> 
> 
> My main gripe is to understand if distros like Debian should or not
> enable opengl es2 when they don't know in advance on which specific
> boards they will run.
> 
> Any kind of extra info on the subject will be higly appreciated.
> 
> Thanks in advance, Lisandro.

I don't know what you should do but for some data points there are also boards 
that offer OpenGL ES 3/3.1/3.2 and the recent Tegra boards even offer 
"desktop" OpenGL 4. ES2 is likely a sane default minimum. If users want to use 
the sw renderer or ES3/desktop GL they would need to build themselves.

Cheers,

Sean
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