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

[Uwe Rathmann]

On Sun, 02 Sep 2018 14:48:37 +0200, Jean-Michaël Celerier wrote:

> For this kind of work I'd recoment QNanoPainter, ...

I also gave this hint to Denis - without having any experience with it 
myself. When I have more time I will check if its is possible for Qwt to 
benefit from this backend.

Do you have any numbers, when comparing the specific problem of drawing 
dotted lines ? 

Thiago argues, that a QPainter based render engine results in performance 
bottlenecks. But if it is possible to have significantly better results 
with QNanoPainter then there is no conceptual problem and Qt development 
could improve the situation by working on the code of the OpenGL paint 
engine.

Uwe