ext Bin Chen wrote: > On Jan 16, 2008 4:34 PM, Tapani Pälli <[EMAIL PROTECTED]> wrote: > >> ext Bin Chen wrote: >> >>> 在 2008-01-16三的 10:20 +0200，Tapani Pälli写道： >>> >>> >>>> Hello; >>>> >>>> ext Bin Chen wrote: >>>> >>>> >>>>> Hello, >>>>> >>>>> In PC because the screen resolution is large, so the computation for >>>>> compositing(such as transparent window) will very large. But in many >>>>> many small devices the screen resolution is less than 320*240, so the >>>>> computation should be about 1/50 of PC screen. Many embedded devices >>>>> has no acceleration at all, but with a small resolution many devices >>>>> is inherent can do it I think. >>>>> >>>>> >>>>> >>>>> >>>> Yep, with a resolution of 320x240 composite should not be a performance >>>> problem, more likely a memory problem as every X-window will have a >>>> offscreen buffer and devices with such screen don't tend to have much >>>> memory in them. What kind of device are you using? >>>> >>>> >>>> >>>>> But the engine should be small and high performance, both in code size >>>>> which will resides in flash. So I think maybe desktop solution not >>>>> adequate, such as beryl. I want to know if there is any project has >>>>> been started for this? >>>>> >>>>> >>>>> >>>> You might want to try using Matchbox's composite engine (you can enable >>>> it via configuration options) or try xcompmgr from freedesktop.org >>>> which is a 'minimalistic' composite manager. >>>> >>>> >>>> >>> Thanks. >>> >>> Yes, I am running my testing system in a 200Mhz CPU with 64M bytes >>> memory, I think it is enough! >>> >>> But when I run xdpyinfo, there is no composite extension build with my X >>> server, how to turn it on? I am using Xfbdev. >>> >>> > Pity, I don't know how to do it, can you point me a source ? > > And I want to study how X works, can you suggest me something to read > except the large source code repository? > >
Israel, E., Fortune, E. (1992), The X Window System Server. Digital Press, Burlington, MA, 1992. > Thanks! > > Bin > _______________________________________________ > maemo-developers mailing list > [email protected] > https://lists.maemo.org/mailman/listinfo/maemo-developers > // Tapani Pälli -- Software Engineer Open Source Software Operations _______________________________________________ maemo-developers mailing list [email protected] https://lists.maemo.org/mailman/listinfo/maemo-developers
