Thanks a bunch!
I also found wsdisplay/wscons.
Cheers,
-KenD
On 2025-06-15 07:34, Matthieu Herrb wrote:
On Fri, Jun 13, 2025 at 10:33:51AM -0700, [email protected] wrote:
Greetings,
I am looking at getting a framebuffer back end for the OpenSmalltalk
IDEs up
on OpenBSD.
...
There are at least 3 ways to get a fbdev like dumb framebuffer under
OpenBSD:
- use SDL2 which has a framebuffer mode (there as games using this
mode, and also mpv supported it to play videos on the console last
time I checked). SDL2 also manages input, so you'd have to use its API
for input too.
- wsdisplay(4) is capable of providing a dump framebuffer with
different
pixel formats depending on the hardare. See
xenocara/driver/xf86-video-wsfb/ for the code of the X11 driver that
uses this feature for some code samples. In this case you can use the
functions from libinput-openbsd for the input side. libinput-openbsd
is not a complete libinput port, there are many stub function but it's
enough to handle one pointer and one keyboard.
- finally drm also provides a potentially accelrated
framebuffer. There are some examples in libdrm on how to use
it. Again with drm you can use libpintput-openbsd for input.
I hope that, whatever method you choose, you'll enjoy your project.
