Talk:Game development

Doom details

So... Someone apparently got Doom running on the XO. I recall also seeing a video of a console emulator on the XO, but it seems to have since been taken down. The framerates seem a little sluggish but still playable. The active screen area is inset quite a bit, presumably for performance reasons. Does anyone have details on the implementation of these things? Was it GTK running on Sugar/Matchbox, or was a custom solution used for performance? —Joe 16:22, 18 March 2007 (EDT)

SDL is OK

Tux Paint uses it.

The rpm files have problems. SDL_mixer drags in Qt via timidity and the KDE sound deamon. Don't bother with SVG, that drags in GNOME!!! I think OLPC is going to hack up some alternate RPMs, but really this is a Fedora problem.

The screen is using 5:6:5 color, which is bad in more ways than I can count. You can see green/magenta banding (posterization) easily on a smooth grey gradient, especially if that gradient is bright and radial like a highlight.

There is a way to do your own swizzle for better quality and bit depth. See this kernel patch for a way to sanely enable it. (without that patch, an ioctl on /dev/fb0 will do the job) Games could look very nice with smooth 18-bit color if this were used.

AlbertCahalan 23:44, 18 March 2007 (EDT)