kicad-developers team mailing list archive

[Seth Hillbrand <seth@xxxxxxxxxxxxx>]

It's definitely good to have a backup. That last wx packaging fiasco with
the halfway switch from gtk2 to gtk3 was not pleasant.

-S

On Mon, Sep 28, 2020 at 3:43 PM Ian McInerney <Ian.S.McInerney@xxxxxxxx>
wrote:

> The upcoming wxWidgets 3.1.5 release has added a new backend supporting
> Wayland/EGL to the wxGLCanvas that we use for displaying the OpenGL drawing
> canvas. This backend appears to be the new default backend for wxGTK unless
> it is explicitly disabled on the wxWidgets configure step (you
> pass --disable-glcanvasegl to the configure script). It is also not
> currently possible to change this backend at runtime. This means that we
> will be forced to use whatever the distro-defaults are for the canvas
> backend once wx 3.1/3.2 is being used in the wild.
>
> I was just working with it some, and our main bottleneck for supporting it
> natively is currently the GLEW dependency we have in our rendering code.
> GLEW requires a compile-time selection of either X11 or EGL backends, and
> all distributions seem to only ship a library built for the X11 backend.
>
> I have done some experimenting, and building a version of GLEW that is
> meant for EGL is fairly simple and uses a single C file and the public
> headers. It can be compiled into a static library that we then link into
> our code, so we don't actually need to bundle a shared library. My thinking
> currently is that we provide these GLEW files in the thirdparty directory,
> and only use them if a specific compile-time option to use EGL is provided.
> That will mean that linux packaging will still use distro-provided GLEW
> libraries when using the X11 backend, and if the distro can supply an
> EGL-capable GLEW version we can try to use that (I am not sure how the
> distros will manage this though).
>
> -Ian
> _______________________________________________
> Mailing list: https://launchpad.net/~kicad-developers
> Post to     : kicad-developers@xxxxxxxxxxxxxxxxxxx
> Unsubscribe : https://launchpad.net/~kicad-developers
> More help   : https://help.launchpad.net/ListHelp
>


-- 
[image: KiCad Services Corporation Logo]
Seth Hillbrand
*Lead Developer*
+1-530-302-5483‬ <+12126039372>
Davis, CA
www.kipro-pcb.com    info@xxxxxxxxxxxxx