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Article View: comp.soft-sys.khoros
Article #909

Re: 24-bit graphics

#909
From: Wade Rogers
Date: Thu, 31 Dec 1992 13:54
30 lines
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Jeff Key <jeff@stratus.colorado.edu> writes:

>...
>I have a Sun Sparc 10 with 24-bit graphics ("GS" in Sun lingo).  I see
>that Khoros has a function to compress 24-bit images to N-plane pseudo
>color (vgamut), but I would like NOT to compress it; i.e., to display
>three 8-bit planes.  Is this possible?

Jeff,

Both put_update and editimage understand the 24-bit visual.  If you have a
3-band viff of colormap type genericRGB or ntscRGB, pumping it to either
of these display routines should produce a true color image.  If you still
get the prompt to allow compression to 8 bits by an internal call to vgamut,
this probably means you've started up your X server in 8-bit mode.

BTW, I don't have a Sun GS, but rather a Parallax XVideo board, which is
also a 24-bit frame buffer (also has a true color RGB digitizer!).  Mine
works as noted above.

Hope this helps.

Wade

-- 
    Wade T. Rogers                |    E.I. du Pont de Nemours & Co.
    rogers@eplrx7.es.dupont.com   |    Engineering Physics Laboratory
                                  |    P.O. Box 80357
    (302) 695-7945                |    Wilmington, Delaware 19880-0357
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From: rogers@eplrx7.es.duPont.com (Wade Rogers)
Subject: Re: 24-bit graphics
Message-ID: <rogers.725810074@eplrx7.es.dupont.com>
Organization: DuPont Engineering Physics Laboratory
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Date: Thu, 31 Dec 1992 13:54:34 GMT
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