osmesa FAIL [WAS: Testing octave-4.0.1-rc4]

[Philip Nienhuis]

Andreas Weber wrote:
> Hi Philip,
>
> Am 11.03.2016 um 15:30 schrieb PhilipNienhuis:
> > On Mageia-5 Linux I get only two FAILs for osmesa:
> >
> > :
> > > > > > > processing
> > > > > > > /home/philip/devel/octdev/oct4.0.0-rc4/libinterp/dldfcn/__osmesa_print__.cc-tst
> > ***** testif HAVE_OSMESA, HAVE_GL2PS_H
> >   if (isunix ())
> >     h = figure ("visible", "off");
> >     fn = tempname ();
> >     sombrero ();
> >     __osmesa_print__ (h, fn, "svg");
> >     assert (stat (fn).size, 2692270, -0.1);
> >     unlink (fn);
> >     img = __osmesa_print__ (h);
> >     assert (size (img), [get(h, "position")([4, 3]), 3])
> >     ## Use pixel sum per RGB channel as fingerprint
> >     img_fp = squeeze (sum (sum (img), 2));
> >     assert (img_fp, [52942515; 54167797; 56158178], -0.05);
> >   endif
> > !!!!! test failed
> > ASSERT errors for:  assert (stat (fn).size,2692270,-0.1)
> >
> >    Location  |  Observed  |  Expected  |  Reason
> >       ()          2798       2692270      Rel err 0.99896 exceeds tol 0.1
> > ***** testif HAVE_OSMESA, HAVE_GL2PS_H
> >   if (isunix ())
> >     h = figure ("visible", "off");
> >     fn = tempname ();
> >     plot (sin (0:0.1:2*pi));
> >     __osmesa_print__ (h, fn, "svgis2d");
> >     assert (stat (fn).size, 7438, -0.1);
> >     unlink (fn);
> >     img = __osmesa_print__ (h);
> >     assert (size (img), [get(h, "position")([4, 3]), 3])
> >     ## Use pixel sum per RGB channel as fingerprint
> >     img_fp = squeeze (sum (sum (img), 2));
> >     assert (img_fp, [59281711; 59281711; 59482179], -0.05);
> >   endif
> > !!!!! test failed
> > ASSERT errors for:  assert (stat (fn).size,7438,-0.1)
> >
> >    Location  |  Observed  |  Expected  |  Reason
> >       ()          2120         7438       Rel err 0.71498 exceeds tol 0.1
> > :
>
> Can you run the test manually (without unlink which deletes the images)
> in Octave and check the generated images? You should see the sombrero
> and a simple sin plot.

No the files are only 2798 (oct-z2vuOE) and 2120 (oct-s9ez4U) bytes, 
resp. Much too small for sombrero and a plot. I'll attach them.

When I entered (set (h, "visible", "on") I didn't see the sombrero, just 
the axis ticks.
But when I replaced <visible> "off" with "on" in the test sequence, I 
did see a complete sombrero plot appear but nevertheless 
__osmesa_print__ didn't make a full svg drawing, it was the same as the 
attached.

> Which version of libosmesa-dev is installed and do you use proprietary
> GPU drivers which doesn't use mesa?

lib64osmesa8 (+ -devel) are version 10.5.9.

My desktop system has NVidia graphics (proprietary I think), so maybe it 
doesn't use osmesa? (as you can guess I know beans about the lower level 
graphics SW).
My laptop (w. Intel graphics) has essentially the same results (also 
running Mageia-5 64bit).

Philip

oct-s9ez4U
Description: Text Data

oct-z2vuOE
Description: Text Data