--- Siarhei Siamashka <[EMAIL PROTECTED]> wrote: Siarhei Siamashka wrote: > This is what works for MPlayer on Nokia 770. It creates x11 window just > to reserve some screen space and prevent other applications from using > it. After that, it renders data directly to framebuffer and uses x11 for > input. It is not very clean, but it works. And it works fast. The same trick > can be probably done for SDL.
Indeed SDL is the 'gaming api' in-use for games that run acceptably on tablets, and Xrandr would be the natural choice for changing screen resolution. While that would be fast and simple, it doesn't look good. See http://pupnik.de/ScalersExult.png As the screenshots show, a Scale2x or 2xSai scaler yields much more readable text (view on the tablet to get a good idea of this). While I appreciate that the folks at Nokia are looking into solutions aimed at future Xomap and tablet releases, my interest is directed toward improvements that can apply to current N770 and N800 tablets. To this end, my hope would be for a fast Implementation of SDL's HWSURFACE that would allow the SDL app to use an internal high quality scaler or 800x480 native resolutions. Siarhei Siamashka wrote: > Also it would be a good idea to benchmark SDL, identify maemo or ARM > architecture related bottlenecks and try to fix them. Many older generation > games worked perfectly on hardware way slower than Nokia 770. So > Nokia 770 may be a good platform for mobile gaming if properly > optimized > .... > This is what works for MPlayer on Nokia 770. It creates x11 window just > to reserve some screen space and prevent other applications from using > it. After that, it renders data directly to framebuffer and uses x11 for > input. It is not very clean, but it works. And it works fast. The same trick > can be probably done for SDL. If the memcpy on 770 is something like 190MB/s, pushing 800x480 at 30fps would use only 12 percent of that bandwidth I feel that a better SDL implementation would be time/money well spent, as it would be an easier upgrade than Xomap for current 770/800s, and would also benefit future nokia tablets. Arnim __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ maemo-developers mailing list maemo-developers@maemo.org https://maemo.org/mailman/listinfo/maemo-developers
