> I dunno how much hardware abstraction there is in libdrm (and this is my own dawn fault as I should have dug deeper a long time ago in libdrm interface), do w

> I dunno how much hardware abstraction there is in libdrm (and this is my own dawn fault as I should have dug deeper a long time ago in libdrm interface), do we have to "know" how to deal with the native format, or is there some (expensive) hardware abstraction to deal with this conversion? From my experience there is no magic at all. You have to wire everything up yourself. Different cards expose different properties and limitations, albeit all through the same API. But you have to handle the differences yourself. For example the Pi's primary VC4 graphics card has 48 planes to place framebuffers onto the screen, while the minimal implementation their 7" display uses only has a single plane. Your code has to know how to handle this. DRM doesn't abstract that away.