Re: [umax] Can't use 10-bit scan: "preview cannot handle depth 16"

becka@rz.uni-duesseldorf.de
Thu, 7 May 1998 22:47:43 +0200 (MET DST)

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In reply to: Oliver.Rauch@Wolfsburg.DE: "Re: [umax] Can't use 10-bit scan: "preview cannot handle depth 16""

> > There are several PC graphics cards and many UNIX workstations that
> > provide 32-48 bits per pixel. The current limit for X-based systems
> > is 32-bits per pixel.
>
> As far as I know the 32bit mod of the PC-graphic-cards is a
> mode where the 3 of 4 bytes are used for 24-bit-rgb and the
> 4.th byte isn't used.

Yes. This is the common case. Only a few very new boards/chipsets are prepared
to have a 10:10:10 mapping for 30 bits precision.

However there exist 16 bit greyscale systems for medical image processing
(X rays) and a few 3x16=48 bit systems used for similar purposes.

However I'd start worrying about those when we come across them. SANE
is able to read >8bpp data from the device, so ...

CU, ANdy

-- = Andreas Beck | Email : <andreas.beck@ggi-project.org> =

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Next message: Paul D. Robertson: "Re: [umax] Can't use 10-bit scan: "preview cannot handle depth 16""
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In reply to: Oliver.Rauch@Wolfsburg.DE: "Re: [umax] Can't use 10-bit scan: "preview cannot handle depth 16""