566453 - Sufficiently large images treated as errors

Status: RESOLVED DUPLICATE of bug 567751

(Core :: Graphics: ImageLib, defect)

Description

[Josh Triplett]

In doing some data analysis, I needed to work with some images of size
6000x$BIGNUM.  I've already reported bug 566273 about one issue handling large images.  I also found that even larger images would not render at all, instead saying:

The image "/path/to/image.png" cannot be displayed, because it contains errors.

The Firefox title bar does show the correct image dimensions, 6000x317250 pixels.

I've attached the 6000x317250 grayscale PNG in question.  It should look like an all-black image with a single smooth curve in it.

Comment 1

[Josh Triplett]

OK, apparently not.  "The file you are trying to attach is 2454 kilobytes (KB) in size. Non-patch attachments cannot be more than 2048 KB."  Just *barely* too big.

Attaching a 6000x200000 PNG instead, which still triggers the problem, and fits in the size limit.

Comment 2

[Josh Triplett]

Attachment: 6000x200000 PNG demonstrating the problem.

Comment 3

[Josh Triplett]

Per Mike Hommey's suggestion in bug 566273, tested with --with-system-png removed; no difference.

Comment 4

[Alice0775 White]

See Bug 567751 -https://bugzilla.mozilla.org/show_bug.cgi?id=567751#c2
Is this same regression?
http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=2968d19b0165&tochange=f236632a9747

Comment 6

[Josh Triplett]

Still present in 7.0a2.

Comment 7

[Daniel Holbert [:dholbert]]

Out of curiosity, does any browser render this correctly?

On my machine, Opera 11.50 gives a large white box saying "Image" in the upper-left, and Chromium 13.0.782.99 basically loads about:blank.  (all white, no scrollbars)