Date: Mon, 21 Oct 1996 19:55:45 -0700 (PDT) From: Jonathan Mini <j_mini@efn.org> To: "Jordan K. Hubbard" <jkh@time.cdrom.com> Cc: hackers@FreeBSD.org Subject: Re: Screen savers for syscons.... Message-ID: <Pine.SUN.3.95.961021194857.8954A-100000@garcia.efn.org> In-Reply-To: <15186.845931007@time.cdrom.com>
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On Mon, 21 Oct 1996, Jordan K. Hubbard wrote:
> > I'm planning on modifying the screen savers that come with FreeBSD
> > 2.1.5-R to work with other display devices other than VGA. (like my mono
> > system) AFter that, I'd like to write a few screen savers that use the
> > 320x200x256 graphics mode of VGA to create a few decent screen savers.
> > (let's face it, other than the "green" and "blank" screen savers
> > everything else is pitiful.)
>
> Then please, do it the way we've always discussed it - as a
> screen-saver-helper's library you can link your screen saver app with
> and save on all the init/teardown code as well as having a convenient
> graphics/text library for painting on the screen. Then write your
> first few screen savers as consumers of this library, as an
> operational test.
Well. Considering that that is prettym uch the easies (from my humble
point of view) way to do it, I was planning on doing something of the
sort.
Since I was planning on writing more than one screen saver, it was
obvious to me from the start that I was going to either have to wirte a
library or cut and paste a lot of redundant code.
Fortunatly for you guys, I hate cutting and pasting, plus it annoys me
at the size of the "blank" screen saver which really does nothing more
than this :
fill_screen(' ',FG_WHITE | BG_BLACK);
I was planning on making a library that basically gave me three things :
- a set of handy routines for writing to the text and graphics
modes of the syscons -- be it MDA,VGA, whatever. (I was thinking text,256
and 16 color modes)
- hide all that setup and shutdown code -- Why am I looking at it
if it's pretty much the same for all screen savers??
- give me a handy hook for a 100hz timer. =) So that I can animate
without doing any thinking.
> Think "after dark module" :-)
I've never played with After Dark's API. Think of it as keeping me
"unsoiled." ;) (Or if After Dark did it right, "ignorant.")
> Jordan
Jon Mini, j_mini@efn.org, mini@4j.lane.edu
GAMMA Development Team
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