Insisting on metaphors that exploit the device's weaknesses (Re: Centralization of graphical awesomeness)
Carsten Haitzler (The Rasterman)
raster at rasterman.com
Thu Oct 29 12:56:10 CET 2009
On Thu, 29 Oct 2009 11:12:29 +0100 Bernd Prünster <bernd.pruenster at gmail.com>
> Petr Vanek wrote:
> >> lots of alpha blending - if you have the 16bit engine you get no
> >> scale cache (thats 32bit engine only). but worst.. is the font
> >> style. check carefully. text has a soft dropshadow. that is drawn
> >> by 1. drawing the shadow first and that draw 25 copies of the text
> >> with very faint alpha. THEN draw the text on top. that is a pretty
> >> big expense. there is no text effect cache in evas at the moment,
> >> so this really hits you. turn off the soft dropshadow effect in the
> >> theme.. and watch it get 3 or 4 times faster (expedite has a test
> >> just for this
> >> - on a desktop (in fps) i get 128 and 489 fps respectively just by
> >> having no soft shadow on the text). thats pushing on close to 4
> >> times faster. it's an effect - that doesn't come cheaply. the
> >> alternative (an actual blur filter) isn't too cheap either. but
> >> it's something that can be improved for sure. you want it fast?
> >> turn it off. :)
> > Thank you for all the explanation. I think the 32bit engine is the
> > only to go with now. Perhaps the optimization is is already done,
> > maybe not.
> > @Bernd Prünster: you are already very good with this, it would be good
> > to see the difference, if not used already... mind to try the above in
> > gry* ?
> gry* doesnt use dropshadow, it was one of the forst thigs i kicked out,
> gry* uses a white outline on black text.
> but thats something thats bugging me. i have to make some tests...
even that can be slow. in this case, the text will be drawn 5 times to produce
> >> i started a
> >> rewrite- illume2 is in svn. its much cleaner and leaner designed to
> >> allow for replacable home screens (ie a home window provides by
> >> either another e module or another process). as well as "top
> >> shelf" (inf act any corner/region of the screen) can also be a
> >> window provided by.. another module... or another process etc. its
> >> much more like the kbd code. it's started. it's not usable. it's on
> >> the backburner until a bunch of other tasks are done that are much
> >> higher priority.
> > ok, will hope for better times to come
> >>> developed? What do you use on small device? Illume was ditched
> >>> long time ago, is there not a replacement with attention?
> >>> Anything you could recommend?
> >> can't talk about it :)
> > perhaps we can benefit from it in (near?) future... :)
> > thank you
> > Petr
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The Rasterman (Carsten Haitzler) raster at rasterman.com
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