TL;DR: What linux API should be used to render a game to the screen on the RG35XXH?
I'm trying to port a solitaire game to the RG35XXH. Currently I'm using GLFW to get a window on my laptop; however GLFW doesn't support running without an X11 or Wayland server running.
I looked into EGL, which worked, kind of. It can fetch an OpenGL ES context but it has no way to display the rendered framebuffer to the screen.
Most recently I looked into KMS + DRM. I found a repository with code explaining how to interface with the DRM, and got it working on my laptop, which is nice! However on the RG35XXH (with Batocera v40) there is no /dev/dri/ folder 😦 . I can only assume that this means Batocera doesn't use DRI/DRM/KMS at the moment.
Next I might try using a frame buffer device. Running cat /dev/urandom > /dev/fb0 fills the screen with random colors; so I should be able to implement rendering with it. However I don't know if this is the correct route to go.
Now, as I understand it, SDL2 is supposed to support rendering to these types of devices. I've been avoiding SDL2 as I would prefer to distribute the program as a single executable file, and its license makes that more difficult.
Disagree. No one was hurt here. The fact that the baby could have lived means nothing. The mothers body is her own, and the choice was hers and only hers.