unreadable mirax file

[Benjamin Gilbert]

On 08/04/2013 04:46 PM, jcupitt at gmail.com wrote:
> openslide-write-png: A6_1037_HE.mrxs: Cannot read slide position info:
> Expected first 0 value

Hi John,

This is just an assertion failure: a padding value* in Index.dat is 
unexpectedly nonzero.  After disabling the offending test 
(openslide-vendor-mirax.c, line 277) the slide seems to open and render 
fine.

Have you encountered this problem with other slides?  Is there anything 
special about the failing slide?

--Benjamin Gilbert


* For hierarchical sections, the value is the number of entries in the 
Index.dat data page.  For non-hierarchical sections, it is always zero, 
even though there is always exactly one entry.  On this slide, only for 
the nonhier section containing the (compressed) tile position map, the 
value is 1253.