[cairo] Is Cairo Library an X Window Component or not?

[Tarnyko]

Hi Viktor, 

I take the freedom to answer. 

Neither X11, nor the core components of the X Server, depend on Cairo. 

Actually the X11 protocol provides its own graphics drawing primitives 
(which are barely used today; just sayin'). 

Its more of the reverse: Cairo has a X11 backend, just as optional as the 
Wayland or Win32 backends. 

Regards, Tarnyko 

Виктор Михайлов writes: 

> Hello, dear members of the cairo graphics library community! 
> 
> I have a question, which I cannot find an answer to on the web, and hope
> for the assistance of the community. 
> 
> Does X.org's low-level rendering graphic subsystem rely on the Cairo
> library? Or perhaps it has some drawing components, which are based on
> Cairo? 
> 
> I know such a popular and widely used in Open Source projects graphic
> toolkit as GTK is based entirely on Cairo: all its graphic primitives and
> rendering are implemented through Cairo. 
> 
> What about X Window System (I mean X11, X.org and so on)? Is Cairo Library
> its component as well and is it based on Cairo too, like GTK is? Or Cairo
> isn't its part and is not comprised in the X Server? 
> 
> Victor.