Currently, this applies to the Prism and the IIIc, although the condition was obvious
under the IIIc because the hardware palette
only accepted 12-bit input. (Though the IIIc condition was not obvious from the
officil OS APIs)
Which is why I am curious is the m505 uses the same Epson chip as the Prism.
guizmy wrote:
> thks for your interesting reply, but what device are you talking about ??
> Handspring prism ??
> "DIAMOND JEFF" <[EMAIL PROTECTED]> wrote in message
> news:42746@palm-dev-forum...
> >
> > Just to add a finesse point that goes a little bit beyond your question:
> >
> > Although the LCDs claim to show 65536 different colors in 16-bit mode, and
> claim to support palette choices in other modes of
> > 262,144 color choices, the LCD's I've seen so far (can't comment on the
> CLIE) really can only display 4096 colors.
> >
> > However, what they do is provide hardware dithering to mimic 262,144 color
> possibilities out of the 4096.
> >
> > But I've gotten better visual results by just assuming a 4096 color
> palette (the real, pure colors) and dithering my images to it
> > using error diffusion dithering.
> >
> > David Fedor wrote:
> >
> > > >I would like to know how many colors i can display on the Palm IIIc
> > > >(simultaneous) ? and the Palm m505 ?
> > >
> > > On a Palm IIIc device (or other 8-bit devices), you've got an 8-bit
> > > palette, so you can show 256 different colors at the same time. By
> > > changing the selection of colors in the palette, you have access to a
> > > larger number of colors than just 256... but not at the same time.
> > >
> > > On a Palm m505 device (or other 16-bit devices), you could theoretically
> > > show 65536 different colors, but there aren't that many pixels on the
> > > screen; there's 160x160=25600 pixels so the answer to your "maximum
> colors
> > > showing at once" question is constrained by the size of the screen. But
> a
> > > 320x320 screen such as the new Sony Clie could show all 65536 at the
> same
> > > time, though I'm no expert on that device and so don't hold me to that.
> > >
> > > Sometimes there are other constraints imposed by the screen hardware,
> like
> > > some screens can only show 8 different intensities of blue, 8 of red,
> and 4
> > > of green. That would still work out to being 256 different colors,
> though
> > > you couldn't have them all be shades of blue. This isn't Palm-specific
> at
> > > all; this is just how screens work on computers.
> > >
> > > -David Fedor
> > > Palm Developer Support
> > >
> > > --
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> please see http://www.palmos.com/dev/tech/support/forums/
> >
> >
> >
>
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