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Re: OPENSTEP 4.2 vmware SVGA
From: |
Gregory Casamento |
Subject: |
Re: OPENSTEP 4.2 vmware SVGA |
Date: |
Fri, 25 Jan 2002 14:18:31 -0800 (PST) |
Having trouble unpacking this....
[heron@genoa heron]$ tar zxvf VMWareSVGA.tar.gz
gzip: stdin: invalid compressed data--format violated
tar: Child returned status 1
tar: Error exit delayed from previous errors
[heron@genoa heron]$
Even when I try "tar xvf", I still have problems.
GJC
--- Frederic Stark <fred@almonde.com> wrote:
> [Sorry for the spam. I know that discuss-gnustep is not appropriate to
> talk about writing a driver for a proprietary system under a proprietary
> virtual machine]
>
> Stefan Boehringer wrote:
> > Hello Fred,
>
> Hi,
>
> > I guess you are going to become the hero of all the OPENSTEP veterans
> > ;-) (I'm one of the impatient and would appreciate receiving your code).
>
> It is _really_ ugly for now (full of hard-coded values, half-baked tests
> and desesperate attemps, coded in a 640x480 OPENSTEP virtualized
> machine). It is surprisingly small (250 lines, mostly debug and dead
> code. Probably 20 real lines max). I promise a less dramatic release
> this week-end (in the meantime, the ugly one is at
> http://www.chez.com/fstark/VMWareSVGA.tar.gz , source and binary.
> Supports only 1024x768 24bits. [sorry for the web-bugged ridden chez.com
> site, but I can't think of any better place to put it]).
>
> > In principal vmware is supposed to support frame buffer access, i.e. it
> > runs without any additional vmware-graphics driver. I think it works at
> > least for windows. I have not tried Openstep on vmware yet, but does it
> > work seamlessly under VGA resolution?
>
> Yes. And, if I understood the thing correctly, under windows, it can
> also work under VESA. But the OPENSTEP VESA driver request a mode (106h,
> IIRC) that is not supported by vmware.
>
> > If so, I would rather have a closer look at your driver.
>
> Well, there is so little to do in a framebuffer driver that I don't see
> what I could have done wrong.
>
> > >From what I heard from the list vmware Inc. seems to be very
> > cooperative (license donation). Perhaps the contacts used earlier could
> > work again and some information of the exact way of "screen
> > virtualization" by vmware could be acquired.
>
> I plan to post on the vmware newsgroup when I'll have enough information
> and a presentable semi-working driver.
>
> > Personally I would hope for a direct access to the frame buffer in full
> > screen mode (as I understand it both the virtualization and XFree could
> > allow for direct access), but this is clearly beyond our control.
>
> I hoped that too, but it don't seem to be the case (at least on my video
> hardware)
>
> > I do not understand how you would like to force flushing.
>
> There is a register command for that (ie: I can force the virtualized
> SVGA board to flush a part of the screen).
>
> > If you remain
> > in your virtualized machine, all you can do is modifying the frame
> > buffer and hoping for the virtualizer to reflect your changes properly.
> > If vmware doesn't this is clearly a vmware "bug".
>
> Yes, but as OPENSTEP is not a supported system...
>
> > Otherwise you have to
> > cooperate with the virtualizing application (i.e. vmware) itself to
> > direct it to the rectangles to flush.
>
> Yep.
>
> Cheers,
>
> --fred
>
>
> _______________________________________________
> Discuss-gnustep mailing list
> Discuss-gnustep@gnu.org
> http://mail.gnu.org/mailman/listinfo/discuss-gnustep
=====
Gregory John Casamento
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- OPENSTEP 4.2 vmware SVGA, Frederic Stark, 2002/01/23
- Re: OPENSTEP 4.2 vmware SVGA, Pascal Bourguignon, 2002/01/23
- Re: OPENSTEP 4.2 vmware SVGA, Frederic Stark, 2002/01/24
- Re: OPENSTEP 4.2 vmware SVGA, Pascal Bourguignon, 2002/01/24
- Re: OPENSTEP 4.2 vmware SVGA, Stefan Boehringer, 2002/01/24
- Re: OPENSTEP 4.2 vmware SVGA, Frederic Stark, 2002/01/24
- Re: OPENSTEP 4.2 vmware SVGA,
Gregory Casamento <=
- OPENSTEP 4.2 vmware SVGA in better shape, Frederic Stark, 2002/01/28
- Re: OPENSTEP 4.2 vmware SVGA in better shape, Gregory Casamento, 2002/01/28
- Re: OPENSTEP 4.2 vmware SVGA in better shape, Frederic Stark, 2002/01/30