[cairo] Cairo and Wayland

[Tarnyko]

Hi Simon, 

About your foreword:
 - Ubuntu doesn't need the "--enable-egl=yes" option until they officially 
support a Wayland compositor ;
 - Ubuntu doesn't need the "--enable-glesv2=yes" option until they remove X11 
completely (regardless of whether or not Wayland is supported). 

About Q1: Look here for a recent (May) sample of using Cairo-GLES :
https://github.com/wayland-project/weston/blob/master/clients/window.c#L561 

Regards,
Tarnyko 

Simon Elliott writes: 

> I want to use Cairo with Wayland on an embedded system. 
> 
> I found this tutorial: https://jan.newmarch.name/Wayland/Cairo/
> and this article from the mailing list archive: 
> https://lists.cairographics.org/archives/cairo/2017-June/028168.html 
> 
> both of which suggested I needed to use wl_egl_window -> EGLSurface -> 
> cairo_surface_t 
> 
> So I started to write some sample code on Ubuntu 18.04 to try this out, 
> and found that Cairo GL/EGL support is disabled. This report is back from 
> 2014 but it seems that support is still not enabled. 
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=765684 
> 
> This leaves me with a few questions: 
> 
> Q1: is wl_egl_window -> EGLSurface -> cairo_surface_t still considered the 
> right way to use Cairo with Wayland? Or is there a better way? 
> 
> Q2: is the Cairo GL/EGL backend still experimental? 
> 
> Thanks! 
> 
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