[B2-devel] Re: Visuals?

[Brian J. <bjj...@us...>]

On 6 Jul 2001 Christian Bauer wrote:
> On Thu, Jul 05, 2001 at 02:29:08PM -0500, Brian Johnson wrote:
> > Could BII be made to choose the visual with the lowest depth greater
> > than or equal to the requested Mac screen depth?
> 
> I've committed some code that tries to select an optimal visual for the
> requested Mac color depth. However, I was only able to test it with X
> servers that support exactly one depth so it is possible that some logic
> in the code is wrong. I have tried it with the 8+24 overlay mode of my
> Matrox card with XFree86 4.0.3 but that gives me a BadMatch error when
> trying to open a 24-bit window, for no apparent reason.

I see similar behavior on my SGI box, with a 24-bit default visual.
I forget what my default Mac video settings are... probably 8 bit.  B2
starts booting, but appears to try to change the video modes at some
point, and dies with a BadMatch error:

  bjjsgi> ./BasiliskII
  Basilisk II V0.9 by Christian Bauer et al.
  Reading ROM file...
  WARNING: Cannot open /d3/floppy (No such file or directory)
  Using libaudio audio output
  Gdk-ERROR **: BadMatch (invalid parameter attributes)
    serial 296 error_code 8 request_code 1 minor_code 0

A few months ago I tried hardcoding a non-default visual number, just
to see if it worked, and I got the same result.  Is there some special
magic needed to use non-default visuals?

						Brian

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