62670 - Javascript animations flicker and disappear when pre-loaded frames are resized

Status: VERIFIED FIXED

(Core :: Graphics: ImageLib, defect, P3)

Description

[adrawneek]

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (Windows; U; Win 9x 4.90; en-US; m18) Gecko/20001211
BuildID:    2000121104

Resizing a JavaScript animation (by setting image.width & image.height) and 
then setting the next frame (image.src) causes Mozilla to reload the pre-loaded 
source image from the server, which makes the animation flicker and/or 
disappear.

Reproducible: Always
Steps to Reproduce:
1. Go to http://www.innernet.org/bingwood/ns6/game/
2. Click "Test" at the bottom of the page. A pop-up window will appear, wait 
for the scene of the Inn to load.
2. Click anywhere in the scene to walk the man around.

Actual Results:  The animation of the walking man flickers and eventually 
disappears.

Expected Results:  The animation should zoom smoothly as the man moves "toward" 
and "away" from you.

Try the page in IE 5 to see the expected result.

I believe this bug may be the same as Bug 20754.
This bug also appears in Netscape 6 final release.

Comment 1

[Johnny Stenback (:jst)]

Mark, could you look into this? Looks like mozilla is blocking paint events
while the man walks around in this testcase.

Comment 2

[Marc Attinasi]

If the image is being re-fetched then I'm guessing that this is an image caching
problem.

Comment 3

[Marc Attinasi]

There may be a layout problem as well once the pre-loaded image re-fetch is
taken care of...

Comment 4

[pnunn]

maybe a duplicate.

Comment 5

[pnunn]

All pnunn bugs reassigned to Pav, who is taking over
the imglib.

Comment 6

[Stuart Parmenter]

this is fixed with the new imagelib.

Comment 7

[Terri Preston]

Verified fixed w98 build 2001051704
Verfied fixed mac build 2001051705

No man appears in linux build 2001052112?  I will mark this verified and open a
new bug