I work below the graphics APIs, on GPU drivers, display pipelines and virtualization in the Linux, Android and Windows graphics stack. My patches have landed in the Android/Linux kernel, Mesa and IGT.
On 'Ring Zero GPU' I write about what really happens between a frame being drawn and a pixel lighting up: Graphics, GPU drivers, Virtualization, Display, driver bugs and the tests that catch them. Expect real kernel code, honest debugging stories and diagrams that make the hard parts easier.