74300 - GIF transparency sometimes broken.

Status: VERIFIED FIXED

(Core :: Graphics: ImageLib, defect)

Description

[tenthumbs]

GIF transparency is sometimes broken. Look at the attached screenshot. 
Neither the non-interlaced GIF in the lower left nor the interlaced GIF 
in the lower right display properly.

Sometimes viewing the GIF and then going back will make it display 
properly. Reloading the page makes it fail again.

It is also true that viweing a GIF and then going back to the page makes 
some if the images disappear entirely but that may be another problem.

0331 nightly build

Comment 1

[tenthumbs]

Attachment: screenshot

Comment 2

[Kevin McCluskey (gone)]

*** Bug 57727 has been marked as a duplicate of this bug. ***

Comment 3

[James Paige]

both of those GIF images in the screenshot are animating GIFs, arent they? If
so, this bug is a duplicate of bug 73978

Comment 4

[tenthumbs]

No, they are just single image GIFs.

Comment 5

[Wolfgang Skabrond]

For me, the problem appears with single image GIFs as well as animated GIFs.
Something wrong with the transparency i guess. I'm using Build 2001041214 on
SuSE Linux 7.0. Didn't show up with the last nightly i used (don't remember the
build-#, but it was from late march).

Comment 6

[Wolfgang Skabrond]

Attachment: Snapshot of broken look

Comment 7

[Wolfgang Skabrond]

Attachment: Snapshot of correct rendering (NS 4.76)

Comment 8

[Wolfgang Skabrond]

Attachment: Single image gif (the one on the left side in my snapshots)

Comment 9

[Wolfgang Skabrond]

Attachment: Animated gif (the one on the right side in my snapshots)

Comment 10

[Stuart Parmenter]

->saari

Comment 11

[Stuart Parmenter]

er, for real

Comment 12

[Peter Trudelle]

think this is fixed, needs testing, adding qawanted keyword, 

Comment 13

[saari (gone)]

Fixed

Comment 14

[Terri Preston]

Verified fixed linux build 2001050108, mac build 2001050104