[$] The Linux graphics stack in a nutshell, part1

Linux graphics developers often speak of modern Linux graphicswhen they refer to a number of individual software components and how theyinteract with each other.Among other things, it's a mix of kernel-managed display resources, Wayland for compositing, accelerated 3D rendering, and decidedly not X11.In a two-part series, we will take a fast-paced journeythrough the graphics code to see how it converts application datato pixel data and displays it on the screen. In this installment, we lookat application rendering, Mesa internals, and thenecessary kernel features.