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 CAD / Development / Organizations / LDraw / 2429
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Subject: 
Re: Parts Tracker Status
Newsgroups: 
lugnet.cad.dev.org.ldraw
Date: 
Fri, 9 May 2003 16:20:52 GMT
Viewed: 
690 times
  
In lugnet.cad.dev.org.ldraw, Don Heyse writes:
In lugnet.cad.dev.org.ldraw, Dan Boger writes:
On Fri, May 09, 2003 at 01:32:53PM +0000, Don Heyse wrote:
In lugnet.cad.dev.org.ldraw, Steve Bliss writes:
2. Images of the unofficial files won't be generated.

Do you need help getting the image generation running?  It should work
on BSD.

well, the problem is that we don't have the MESA libraries installed,
and it's going to be a problem setting them up on the server.  We are
working to have the pictures generated in semi-real time off the server
though.

Unless you can somehow make ldglite not require MESA (and X?) libraries
for off screen generation?

I'm pretty sure I've run it without the X libraries around, but I don't
think I ever linked it without them.  So you might be able to build it
on another BSD box with X and MESA and then run it on a headless box
with just the OSMesa lib installed, assuming otherwise similar hardware.

With a little work you should even be able to build it on a headless
box using a stub version of glut.  The MESA Offscreen library (OSMesa)
doesn't use X and should build without it.  When ldglite runs in
in offscreen mode it only makes OSMesa calls and bypasses even the glut
library, so I think a stub would work there.  If I were trying to build
it on a headless box, I'd see about building OSMesa first.  Then I'd
get the glut header and see if I could remove any references to GLX.
Then I'd try to build ldglite.  Hopefully it would get to the linker
stage and fail on the missing glut functions.  At this point I'd create
a stub glut.c with empty procedures for the missing (but unused) glut
functions and then try to link it in.

That sounds pretty easy, right?  :^)

Just so I don't lose it, here's a link to someone who apparently has
had some success with this technique building OSMesa without X on an
ipaq.  The --without-x looks like a handy build option.

  http://sourceforge.net/mailarchive/message.php?msg_id=4011744

Meanwhile I've put it on my todo list to put together a makefile and
instructions for building an OSMesa only version of ldglite for headless
servers.  At my current development rate that should be done real soon
now in just a few short years.

Don



Message is in Reply To:
  Re: Parts Tracker Status
 
(...) I'm pretty sure I've run it without the X libraries around, but I don't think I ever linked it without them. So you might be able to build it on another BSD box with X and MESA and then run it on a headless box with just the OSMesa lib (...) (21 years ago, 9-May-03, to lugnet.cad.dev.org.ldraw)

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