🚀 go-pugleaf

omega2@eng.umd.edu (Wilbur S. Peng) writes:


>If this is an old question refer me to the proper sources,
>   I'm looking for a graphics mode on the IBM that has the following:
>   1) 640 x 480 x 4 bit or ( better yet ) 640 x 480 x 8 bit
>   2) More importantly, supports double buffering. (at least)

>   Currently, I'm using 640 x 350 x 16 (EGA), but the distortion due to the messed up
>aspect ratio is no good.  Does SVGA( either ET-4000, VESA or ATI VGAwonder ) support such 
>a mode?

    All SVGA's support this mode in 4-bit or 8-bit.  VGA does have a
    640x480x16 color mode, but no double buffering. You can also used
    a tweaked 640x400 VGA mode with double buffering.  I saw that in a
    Doctor Dobbs magazine last year in the Graphics Programming column.
    If you want to use SVGA, you can use 640x400x8 bits to get up
    to 4 pages on a 1MEGSVGA card.
    I'd recommend using VESA modes.

-- 
------------------------------------------------------------------------
 John A. Slagel     "My old man used to tell me, before he left this
 j-slagel1@uiuc.edu  shitty world, never chase buses or women- you
                     always get left behind." -The Marlboro Man