resolution preferences??

Fri Jun 6 17:20:54 CEST 2008

On Fri, 6 Jun 2008 07:54:34 +0000 (GMT) David Samblas Martinez
<dsamblas at yahoo.es> babbled:

> Carsten, 
> What app/situation you have in mind when you affirm than nobody can detect a
> the difference at half resolution? I have in mind a web browser a half
> resolution means double the scroll bars, I have in mind a pdf doc viewer,
> half resolution means I have to zoom in  more the document to be readable,
> also a let you more useful surface to develop any app(more buttons, menu
> items)
> 
> I'm wrong with all that thoughts?

yes. :) wrong. :) you assume that you have to render 1:1, rendering a web page
or pdf - you can render to an intermediate buffer than it higher res THEN scale
down to screen res (be it vga, qvga or whatever it is) much like you scale any
image.... the difference would be how sharp or blurry it is. and the vga screen
will look blurry to anyone without excellent eyesight anyway (or someone
with their eye about 3cm from the screen)... thus my point :)

> 
> --- El vie, 6/6/08, Carsten Haitzler <raster at openmoko.org> escribió:
> 
> > De: Carsten Haitzler <raster at openmoko.org>
> > Asunto: Re: resolution preferences??
> > Para: "List for Openmoko community discussion"
> > <community at lists.openmoko.org> CC: "Steven Milburn"
> > <steven.milburn at gmail.com> Fecha: viernes, 6 junio, 2008 7:39
> > On Fri, 6 Jun 2008 00:02:14 -0400 "Steven Milburn"
> > <steven.milburn at gmail.com>
> > babbled:
> > 
> > > This question is probably just because I misunderstood
> > something you said
> > > before, but I'll ask anyway :)
> > > 
> > > If it is acceptable to use QVGA, couldn't that
> > basically be done without any
> > > hardware changes?  I believe I remember you saying the
> > glamo does scaling,
> > > so couldn't you let SW treat the display as qvga,
> > and just have the glamo
> > > scale it up?
> > > 
> > > Or, is the question more about having qvga instead of
> > the glamo (which
> > > leaves you back with the SDIO interface shortage)?
> > 
> > we can just drive the vga screen at qvga. no need for
> > scaling - just change the
> > output at the lcd controller level. but it is a waste to
> > pay for a vga screen
> > when we won't use it. also it does look
> > "blocky". it isn't about glamo or not -
> > it's separate to glamo entirely. simply - how important
> > is a vga screen...
> > really? how many people out there can really see the
> > difference? be really
> > honest. stop thinking "my specs are bigger than your
> > specs". scan u REALLY see
> > all the pixels on a vga screen of that size. i bet to most
> > people its all a
> > blur - a qvga screen looks identical to them. only to a
> > minority who have very
> > good eyesight does it really make a difference, but this is
> > just my "bet". i'm
> > asking the question - and hoping for real honest answers.
> > 
> > > --Steve
> > > 
> > > On Thu, Jun 5, 2008 at 10:42 PM, The Rasterman Carsten
> > Haitzler <
> > > raster at openmoko.org> wrote:
> > > 
> > > > On Thu, 05 Jun 2008 11:50:43 +0200 Marc Bantle
> > <openmoko at rcie.de> babbled:
> > > >
> > > >
> > > > > > quick question - would you prefer a
> > qvga lcd (save a bit of cost) since
> > > > we'e
> > > > > > going to need to software-drive all
> > graphics - the fewer pixels you
> > > > have to
> > > > > > fill, the better for speed. i'm
> > really tossing up if the speed of qvga
> > > > is
> > > > > > worth the loss of resolution. i'm
> > just not sure.
> > > > > >
> > > > > >
> > > > > Would that be 320x240 (QVGA [1]) or 480x320?
> > > >
> > > > qvga is 320x240. wqvga... that's a whole
> > world of resolutions (400x240,
> > > > 432x240, 480x272, 480x320). :)
> > > >
> > > > > I think the latter would be acceptable in
> > terms of usability.
> > > > > OTOH it would also
> > > >
> > > > but it's not a drop-in replacement as its
> > widescreen. we c ould go for 2.8"
> > > > vga
> > > > or 2.8" qvga. drop-in replacement. anything
> > else mans new case/design etc.
> > > > etc.
> > > >
> > > > also remember just getting supply of a screen is
> > hard. you also need it at
> > > > a
> > > > decent physical size.
> > > >
> > > > i'm asking the question if going down to a
> > (relatively) low resolution
> > > > screen
> > > > would be an ok compromise.
> > > >
> > > > > - create extra maintenance cost for system
> > and app themes
> > > >
> > > > one way or another we will need to be able to do
> > multiple resolutions in
> > > > the
> > > > long-run.
> > > >
> > > > > - narrow on-screen information for people
> > with good eye-sight
> > > > > (granny won't be affected ;-)
> > > > >
> > > > > Sofar I haven't suffered from lacking
> > graphic speed on my
> > > > > GTA01. It seemed that waiting for UI
> > feedback was mainly
> > > > > cause by other background processes (e.g.
> > SD-read or such)
> > > > > My interest are standard smartphone and geo
> > apps and for
> > > > > those I'd rather go for resolution.
> > > >
> > > > again - it depends what you want to do. :) gta01
> > actually performance
> > > > better in
> > > > many ways graphically :)
> > > >
> > > > --
> > > > Carsten Haitzler (The Rasterman)
> > <raster at openmoko.org>
> > > >
> > > > _______________________________________________
> > > > Openmoko community mailing list
> > > > community at lists.openmoko.org
> > > >
> > http://lists.openmoko.org/mailman/listinfo/community
> > > >
> > > 
> > 
> > 
> > -- 
> > Carsten Haitzler (The Rasterman)
> > <raster at openmoko.org>
> > 
> > _______________________________________________
> > Openmoko community mailing list
> > community at lists.openmoko.org
> > http://lists.openmoko.org/mailman/listinfo/community
> 
> 
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-- 
Carsten Haitzler (The Rasterman) <raster at openmoko.org>