console window printing is slow in x11 app

[harsha]

Hi,

I have console window application displaying hello world! built for windows and x11. I am seeing the printing is very slow in x11 app and in windows it is fine.

Please tell me is it some thing to do with x11 driver any delay in drawing pixel??

[Joel Bodenmann]

Hello harsha and welcome to the community!

This issue is explained in the wiki: http://wiki.ugfx.org/index.php/Linux
The X11 driver only uses setPixel() and the performance is therefore horribly slow.

[inmarket]

There are several reasons the X driver performs poorly...

1. As X is a development and test platform only for uGFX and thus never intended to be used for production, no effort has been spent in adding accelerated routines.
2. Accelerated routines are not that easy for X. There are some fundamental differences in the way the two GUI systems work and that complicates the writing of these routines.
3. We are not really X programmers. Any code we produce for X is not necessarily going to be the best.

If you would like to help in updating the X driver we would really appreciate it. The X driver has already taken us more time than any other driver we have written.