[maemo-developers] Xsp pixel-doubling solutions for Nokia 770?
From: Daniel Stone daniel.stone at nokia.comDate: Mon Apr 30 12:33:59 EEST 2007
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On Mon, Apr 30, 2007 at 11:26:29AM +0200, ext Frantisek Dufka wrote: > Daniel Stone wrote: > >>>On Mon, Apr 30, 2007 at 09:34:38AM +0200, ext Frantisek Dufka wrote: > >>>You mean, modify every single drawing X request in the X protocol so it > >>>contains flags, meaning that we have to change every drawing-related > >>>function in -- on average -- ten (at least) places in the server > >>>codebase, rendering us incompatible with the standard X server codebase, > >>>as well as the X protocol? > > Well, what I meant is instead of having XSPSetPixelDoubling call in Xsp > we would have XSPBlitRectangle with addition flags - i.e. something > still non-standard but easier to use. If this cannot be done then it is > bad luck. If hardware has useful feature which does not fit the design, > using extension is not that bad. The initial drawing requests are long-forgotten, and we'd need some pretty extensive modification to all the internals to mark a particular region as being doubled. > >Specifying that pixels must be exactly _doubled_ is a > >hack around both the performance issues and a lack of resolution > >independence. Apparently an important one, if you happen to like SDL > >games, but a hack nonetheless. > > Yes limiting ourselves to doubling is bad. Why not to add custom ratio > if N800 can do that. We can do more or less arbitrary scaling, yes, but unfortunately with a few limitations (either we do it on the display controller and suffer the bandwidth hit, or do it on Hailstorm and suffer its horribly complicated semantics for dealing with overlays). > This all leads to request to have some more advanced gaming API. Sadly > this is probably not what internet tablets are currently designed for. > Gamers are big target group and this device is meant for entertainment > so maybe extending target audience to gamers in not that bad idea. > Gaming devices are moving online too so this is direct competition. Why > to buy internet tablet if better Sony or Nintendo device in future will > do this too plus gaming. Unfortunately gaming business has complicated > rules similar in complexity to devices with GSM radio. BTW are internet > tablets in same Nokia multimedia division as N-Gage? I don't know which division N-Gage is in. I can't speak for the product managers as to targeting market segments and all the other things they like to say. Cheers, Daniel -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 189 bytes Desc: Digital signature Url : http://lists.maemo.org/pipermail/maemo-developers/attachments/20070430/f3f0fb54/attachment.pgp
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