1274402 - Black garbage glitch appears with certain animated gif

Status: RESOLVED DUPLICATE of bug 1274057

(Core :: Graphics: ImageLib, defect)

Description

[Alice0775 White]

Attachment: snapshot

[Tracking Requested - why for this release]:

[Tracking Requested - why for this release]:

The problem occuers on Nightly49.0a1 and Aurora48.0a2 with/without HWA.
But not occuer on Beta47.0b7.

Reproducible: always

Steps To Reproduce:
1. Open attached gif

Actual Results:
Black garbage glitch appears

Comment 1

[Timothy Nikkel (:tnikkel)]

I think this is the same gif and same problem as bug 1274057.

Comment 2

[Alice0775 White]

Regression window:
https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=5880d1449a79f790e4dbd3fedfe835bd4291d7c6&tochange=cb965dc05ec7d56b64581b6bbdb70357f6435052

Regressed by : Bug 1247152

Comment 3

[Bram Speeckaert]

Seeing this problem on the following GIFs too:

http://forum.shrimprefuge.be/customprofilepics/profilepic155_2.gif
http://forum.shrimprefuge.be/customavatars/avatar427_4.gif

Comment 4

[Timothy Nikkel (:tnikkel)]

(In reply to Bram Speeckaert from comment #3)
> Seeing this problem on the following GIFs too:
> 
> http://forum.shrimprefuge.be/customprofilepics/profilepic155_2.gif
> http://forum.shrimprefuge.be/customavatars/avatar427_4.gif

Thanks for posting more examples. I confirmed that these have the same regression range. I copied them to the duped bug in case they are helpful there.