[Webkit-unassigned] [Bug 26455] GIF clamping time differs from Firefox

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=26455





--- Comment #20 from Peter Kasting <pkasting at google.com>  2010-03-15 17:45:53 PST ---
(In reply to comment #19)
> I spoke with Maciej and he said that matching the Firefox behavior seems
> preferable unless the Internet Explorer behavior is obviously better in terms
> of web compatibility.

That's also my sense, and both my anecdotal experience as well as the stuff I
looked up online originally suggested that, if anything, the Firefox behavior
is more broadly compatible.  This makes some logical sense, given that in order
to work with IE but not Firefox, you have to set frame timings that are longer
than 10 ms and expect them to be raised to 100 ms--that is, you have to tell
your animation to run at e.g. 30 FPS and then expect it to run at 10.  In the
abstract this seems less likely than simply saying "run as fast as possible",
which winds up either clamped or unclamped in both IE and Firefox, depending on
whether the animation program knows about IE and sets the timings to 50 ms, or
not and sets them to 0 or 1 or similar.  It's this bounded-on-both-sides
"window" that I didn't find large numbers of images falling into when I looked.

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