From: gaw zay (gauze@rifug.org)
Date: Thu 29 Nov 2001 - 19:38:41 IST
On Thu, 29 Nov 2001, Ryan Rubley wrote:
> vga palette registers are 6bit (0-63)
> just <<2 or *4 the results if you need to
I'm not sure if this will work, if r,g,b set by gl_getpixelrgb
didn't seem to set the r to anything but 0?
so it r g b are xxxxxxxx xxxxxxxx xxxxxxxx
and 6 bits would fit in xx xxxxxxxx xxxxxxxx
but the r bits are never set, ever it seemed.
even if I shifted the last 2 bits off 'b' and pushed into small side of
'g' and shifted the 2 bits of overflow into 'r' and 'padded' the top of
'r' it still doesn't look right to me. so you end up with
00xxxxxx 00xxxxxx 00xxxxxx
^^^^ ##
# = shifted from 'b'
^ = shifted from 'g'
<<6 obviously will not make 'b' what you want, either.
or am I just making a bunch of stuff up? :-)
if the vga palette registers are returned by another function please
educate me!
brian
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