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, ken.dickey@whidbey.com 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.
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