522708 - Zooming into large images shows white areas at random positions

Status: VERIFIED DUPLICATE of bug 526882

(Core :: Widget: Cocoa, defect)

Description

[Henrik Skupin [:whimboo][⌚️UTC+1]]

Attachment: screenshot

Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.3a1pre) Gecko/20091015 Minefield/3.7a1pre

With the fix on bug 517802 I can see white areas when zooming into large images. It only happens on trunk. No branch is affected. See the following example:

1. Open http://jeremydouglass.com/gamertextually/images/gt_snowflake_tags-2-ach-large.png
2. Zoom into the images at several places by clicking on it

With step 2 you will see one or more white boxes.

Comment 1

[Markus Stange [:mstange]]

Did bug 517802 cause this, or is it just the best guess? Does bug 516885 fix this?

Comment 2

[Henrik Skupin [:whimboo][⌚️UTC+1]]

I did a hg bisect to catch it so it's not a guess. If you could push the patch on bug 516885 to tryserver I could test it.

Comment 3

[Markus Stange [:mstange]]

Hmm, the patch in bug 516885 doesn't fix it.