MB> BM> know for sure that they're the same color are faster in 256-color 
mode.
MB>I'm wondering, do non-plane 16-color modes exists?... it would make
MB>sense.
As far as I know, only Tandy computers have single-planar 16-color modes.
MB> BM> Personally, I prefer the 256-color mode... have you tried to write a
MB> BM> GetPixel
MB> BM> routine in EGA??  That takes either 4 or 16 reads, depending on how 
you
MB>hmm I'll have to check about this, i'm curious about the 16 one; 4,
MB>figured that one easily; maybe there's a 1-read too, but i'll have to
MB>browse my docs...
Two read modes... one asks "is the bit active in this plane?", the other asks
"is this pixel this color?"
MB> BM> it...  I suppose you might be able to take advantage of the EGA card 
to
MB> BM> do special image mapping routines...
MB>Besides, thinking you were talking only about the 16/256 color
MB>distinction, thought that everywhere a planed 256 is fast, a planed 16
MB>is twice as fast because it's twice less data; but there is the
MB>disposition scheme consideration... a pixel in 16-color is on all
MB>planes at once while it's on 1 plane in 256-color.
Only white or black is all planes at once... other colors are active in some
planes, and not others.  EGA has weird write modes... one of them allows for
writing the same data to a set of bit planes, another copies data from one
part of the screen to another, and the third writes individual pixels.
((Cloud))
MauveCloud@juno.com
 * OLX 2.2 * Stop here for Transcendental Omniscience
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