316828 - Bad Gif transparency handling in animations.

Status: RESOLVED WORKSFORME

(Core Graveyard :: Image: Painting, defect)

Description

[Dan]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; fr; rv:1.9a1) Gecko/20051107 SeaMonkey/1.5a+
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a1) Gecko/20051116 SeaMonkey/1.5a

Transparency is not correctly handled since 3/11 latest trunk builds :
When loading test case attached, the transparency seems to be rendered, then after a while, some colors appear in the transparent part of the gif animation.
It can also be seen when using the composer.

Reproducible: Sometimes

Steps to Reproduce:
1.Open the file attached
2.wait
3.

Actual Results:  
See screenshots

Comment 1

[Dan]

Attachment: test case

Comment 2

[Dan]

Attachment: one possible result

Comment 3

[Dan]

Attachment: one possible result

Comment 4

[Daniel Kies]

I see this bug too:  look at http://papyr.com/hypertextbooks/comp1/ for another example in action.

I use seamonkey creature-trunk builds, and the last build that rendered these animated gifs correctly for me was 2005110908.

Comment 5

[Daniel Kies]

I just installed the seamonkey creature-trunk 2005111719 (win xp sp2), and the animated gif in comment #4 renders fine now.

Resolve works-for-me?

Comment 6

[Dan]

The problem seems to be fixed with build 2005111709

Comment 7

[Elmar Ludwig]

Based on the regression window and the fact that it seems to be fixed now, it looks like more fallout from bug 301594. See bug 316982 and bug 315966 for more details.

Resolving WFM per reporter's comments. Please reopen if this appears again.