KMS/DRM/GBM as a new backend

[NathanRoyer]

Hello ! I'm working on a 'kiosk' mode application with runs on an embedded linux system configured for rust.
The choice was made to not have any compositor (wayland/x11) at all on the system, and to rely on Kernel Modesetting, the Direct Rendering Manager API and Generic Buffer Management (from mesa3d) for the graphics.
I'm at the point where I can draw to the screen via a framebuffer, I have details about the hardware and I have an opengl context via khronos-egl.

I was wondering if this could become a winit backend ? I would gladly develop such a thing.
I guess it would give a single non-resizeable fullscreen window at a time (like most activities in Android), and while I currently don't handle inputs in my test program, I'm sure I can deal with libinput to get keypresses and pointer movement. I have zero knowledge about touchscreens though.

What are your impressions / first thoughts ?
Be welcome to give any advice or direction if you want me to do it.

[NathanRoyer]

Hi @goddessfreya, I'm pinging you because I can see that you already worked with gbm.rs a year ago, a crate which I also use in this project to interface DRM and EGL.

[maroider]

Related issues:
#1205
#1006
#696
#33

[NathanRoyer]

Thanks, I'm closing this to reply to #1006.