[Scummvm-tracker] [ScummVM :: Bugs] #14699: AGI: Xmas Card (Tandy Color Computer 3 Demo) crashes on startup

[ScummVM :: Bugs]

#14699: AGI: Xmas Card (Tandy Color Computer 3 Demo) crashes on startup
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Reporter:  eriktorbjorn  |       Owner:  (none)
    Type:  defect        |      Status:  new
Priority:  normal        |   Component:  Engine: AGI
 Version:                |  Resolution:
Keywords:                |        Game:
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Comment (by sluicebox):

 I see what's going on at the file level. My tools can now decompile this
 version.

 The volume file is in the AGI version 3 format. That breaks our parser
 (and other tools) because this is very much a version 2 game. I don't
 understand how that fits with the AGI timeline. It's also possible that
 the resource-length field just got duplicated for whatever reason, and
 that happens to look like the V3 format. Either way, the volume is in an
 unexpected format.

 Adjusting for this, I can start the demo. It crashes on sound playback
 because the Tandy sound format isn't supported and we're missing an error
 check. Adding the error check fixes the crash and the demo runs, although
 with no sound.

 I will add these once I know a bit more AGI. (You're on your own for
 implementing Tandy sound!)
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Ticket URL: <https://bugs.scummvm.org/ticket/14699#comment:7>
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