tree bfda4b2a3f041a5e797b090d01ff182cb2f4504f
parent 486cc9894b7e76b09b4ee37dff6f313f27b1c501
author David Turner <david.turner@argondesign.com> 1541773040 +0000
committer David Turner <david.turner@argondesign.com> 1541973064 +0000

lightfield example: catch tile list missing error

Currently, if the tile list file is missing, fopen() fails and
attempting to read from the file gives a segfault.  This is a rather
unhelpful result for having some missing test data.  This commit catches
the error and fails with a slightly more helpful message.

Change-Id: I5d68079e5c9a87d3223599a0299582c191b482fe