RFR: 8329820: [Linux] Prefer EGL over GLX [v7]

[Thiago Milczarek Sayao]

On Tue, 30 Apr 2024 12:22:34 GMT, Thiago Milczarek Sayao <tsayao at openjdk.org> wrote:

>> Wayland implementation will require EGL. 
>> 
>> EGL works with Xorg as well. The idea is to be EGL first and if it fails, fallback to GLX. A force flag `prism.es2.forceGLX=true` is available.
>> 
>> 
>> See:
>> [Switching the Linux graphics stack from GLX to EGL](https://mozillagfx.wordpress.com/2021/10/30/switching-the-linux-graphics-stack-from-glx-to-egl/)
>> [Prefer EGL to GLX for the GL support on X11](https://gitlab.gnome.org/GNOME/gtk/-/merge_requests/3540)
>
> Thiago Milczarek Sayao has updated the pull request incrementally with one additional commit since the last revision:
> 
>   - Use EGL_DEFAULT_DISPLAY
>   - Deallocate the resources correctly
>   - Use PBuffer as the dummy surface

I'll have to fix it

I got a reply explaining it (the docs where not very clear)
https://lists.freedesktop.org/archives/mesa-users/2024-April/001727.html

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PR Comment: https://git.openjdk.org/jfx/pull/1381#issuecomment-2085554001