On Fri, Jan 17, 2014 at 7:40 AM, Pierre Ossman <oss...@cendio.se> wrote:
> On Fri, 17 Jan 2014 07:25:32 -0500,
> Brian Hinz wrote:
>
> >
> > I know of at least one major commercial EDA application which requires
> that
> > the server support 8-bit PseudoColor visuals, and a small subset of my
> > users are on a WAN and run Xvnc in 8bpp palette mode specifically for
> this
> > application.
>
> They don't run this on any normal workstation? Xorg dropped PseudoColor
> visuals quite some time ago.
>
I'm not sure when that happened, we just moved to EL6 and I'm not aware of
anything breaking.
> This would otherwise be exactly the case that would be lost in my
> change, as Xvnc -depth 8 would no longer result in PseudoColor but
> DirectColor/TrueColor.
>
I'll try to confirm whether these apps can make use of 8bpp DirectColor.
> > It's possible to use 8bpp direct color on the client (when
> > the server is 8bpp ColourMap) but the colors are generally not
> approximated
> > correctly.
>
> I'm not sure what you mean by this. Can't they run the client in it's
> normal 24-bit mode? That should cover all the colours of the server's
> palette.
AFAIK, the only reason for running 8bpp is to minimize bandwidth. Most of
these types of apps require a WAN license if the user is outside a small (<
25 miles) radius of the server anyway, so I'm not necessarily suggesting
that it's worth holding up forward progress for such a small niche, just
pointing out that 8bpp PseudoColor does still have it's use cases.
-brian
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