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From: greg@ccwf.cc.utexas.edu (Greg Harp)
Newsgroups: comp.sys.amiga.advocacy
Subject: Re: Color palette correction (NeXT)
Message-ID: <47652@ut-emx.uucp>
Date: 22 Apr 91 16:37:47 GMT
References: <1991Apr19.003352.6042@cc.helsinki.fi> <1991Apr19.014549.15293@mintaka.lcs.mit.edu> <1991Apr20.211035.6064@cc.helsinki.fi>
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Reply-To: greg@ccwf.cc.utexas.edu (Greg Harp)
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In article <1991Apr20.211035.6064@cc.helsinki.fi> jalkio@cc.helsinki.fi writes:
>
>I don't think NeXT is just like this. I understood that there really
>_ARE_ 16M different shades, of which the operating system automatically
>chooses the best suited for each situation (determined by the "basic"
>color, of course). You only can't directly access all those shades.
>Thus, those 12 (or 16) physical bits just refer to a table where each
>entry can contain a 24-bit color value. 

Well, I really doubt any "choosing" per se goes on.  At work when we do
something where we use less bits than provided we call it "throwing away
the bits we didn't really need anyway." ;-)

[BTW: To those interested we were adding hand scanner input to our
signature recognition software and we had a 256-grey scanner... :-) ]

Really, I'd be willing to bet that they just don't use the 12 least
significant bits of color.  It's possible some rounding might go on,
though. 

I'd have to check into it, but I'll bet there are only 4-bit video D/As in
the NeXTStation Color, like the Amiga.

Greg
-- 
       Greg Harp       |"How I wish, how I wish you were here.  We're just two
                       |lost souls swimming in a fishbowl, year after year,
greg@ccwf.cc.utexas.edu|running over the same ground.  What have we found?
  s609@cs.utexas.edu   |The same old fears.  Wish you were here." - Pink Floyd