Im working on SDL-1.1 in Bochs.... This gives me a framebuffer to write to
in BeOS / Linux / Windows. SDL will use (I think) DGA / Direct X /
BDirectWindow or fall back to using the native graphics primitives.
Check it out at http://www.devolution.com/~slouken/SDL/
Nick
----- Original Message -----
From: "Sintsov Dmitri" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, October 27, 2000 3:37 AM
Subject: Re: [plex86] X Windows in plex86
>
>
> On Thu, 26 Oct 2000, Jeffrey B. Siegal wrote:
>
> > I think an easier way to get X work would be with flat 256 color (one
byte per
> > pixel). Then there are no latches to worry about. There is a standard
VGA mode
> > for 320x200, and VESA linear-address modes for higher resolution. (This
would
> > work with vesafb and XF86_FBdev.)
> >
> I agree with that, too. If running in full-screen mode, no latch access
> even has to be trapped for 16 color modes, because VGA has been designed
> to allow to completely save/restore state of video in hardware (dump of
> vram, and regs are r/w). I remember that used to be one of the major
> advantages of VGA over very similar older EGA standard, which was less
> multitasking OS'es friendly because it didn't allow to get full state of
> video hardware. Interestingly, is it possible to get a quick fast hack of
> running plex86 with modern 3d accelerators in full-screen mode not having
> to write special drivers/layer of access to host OS drivers, just by
> saving full video state, re-initing card (in a similar way that BIOS is
> doing) and allowing direct access to video in full-screen mode, when you
> switch to host OS/other apps, it will restore the prevoiusely saved state.
> My point was, I believe that windows doesn't trap that much of video when
> it runs VGA full-screen (I might be wrong, but it looks fast). You
> have to write initer/saver/restorer of state for this specific
> card, which should be easier than writing the complete driver. Running in
> window would be more tricky, of course (it's just I personally feel enough
> to run full-screen).
> Uhus
>
>
>
