[Octave-bug-tracker] [bug #65431] crash after hgload certain data

[Markus Mützel]

Follow-up Comment #22, bug #65431 (group octave):

Turns out the second example in "simple_2_crash.m" is caused by a similar
issue than the other one: There was no check that the number of color values
is "cdata" matched the number of faces of the patch.

The attached patch avoids that issue for me.
Instead of trying to render the patch with invalid "cdata", it emits the
following warning:

warning: opengl_renderer: cdata does not match number of faces or number of
vertices per face.  Not rendering.


While looking at that part of the code, I noticed that per-vertex cdata is
currently not correctly converted to per-vertex "facevertexcdata". I'll try to
look into that. But that latter part should probably go to the default
branch.


(file #55814)

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File name: bug65431-patch-inconsistent-cdata.patch Size:2 KB
   
<https://file.savannah.gnu.org/file/bug65431-patch-inconsistent-cdata.patch?file_id=55814>


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