[Vm-dev] Non-Spur CogVM 3427 and 3410 cannot load PNG files anymore

marcel.taeumel Marcel.Taeumel at hpi.de
Tue Sep 15 12:40:20 UTC 2015


Hi Eliot! :)

ImageReadWriter formFromFielNamed: 'someform.png'

works with the Spur VM but not with the v3 one. The bug seems very strange.
Build 3397 still works, 3410 and 3427 do not.

PNGReadWriter DNU #next:into:startingAt: called in PNGReadWriter >>
#processNonInterlaced

However, z should be a ZLibReadStream and not "self" ... I suppose there is
some bug with temps and stack frames? o.O

The message object, which is generated for the DNU, has the wrong lookup
class. Hmpf...

Best,
Marcel



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