Does OpenGL use Xlib to draw windows and render things, or is it the other way around?

Question

I want to render fonts and lines on a window using either OpenGL or Xlib, but I\'d like to know which one is \"more fundamental\".

Usin

Answer 1

Regardless of the image engine you finally use (also don't forget Wayland!) you want to talk to harbuzz-ng, freebidi, fontconfig and freetype for text. Unicode and Opentype are moving so fast those days it's not remotely interesting to reimplement the corresponding engines yourself.

You may think 7-bit ascii is sufficient, but even embedded appliances do more now (if only to render i18n streams, music tags and so on).

Pango-Cairo used to be the standard way to integrate all of those. But many big apps are moving to skia for speed nowadays.