315263 - Large png image is displayed as a black rectangle

Status: RESOLVED FIXED

(Core :: Graphics: ImageLib, defect)

Description

[Mehmet D. AKIN]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8) Gecko/20051025 Firefox/1.5
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8) Gecko/20051025 Firefox/1.5

A large png image showing package dependencies of a linux distro is displayed as a black rectangle. Firefox should have been able to display it properly.

Reproducible: Always

Steps to Reproduce:
1. Open the link provided.
2.
3.
Actual Results:  
A black rectangle

Expected Results:  
the png image

Comment 1

[Ben Fowler]

Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.9a1) Gecko/20051106 Firefox/1.6a1

FWIW, that image displays for me, scaled to 6%

See Bugzilla Bug 289864 "Page crashes system (blue screen) with oversized image"

Comment 2

[Stefan Pietschmann]

Confirmed. I see a black rectangle - scaled to 6%. I can zoom it to 100% but it stays black - not the PNG.


Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8) Gecko/20051105 Firefox/1.5 ID:2005110503

Comment 3

[Ria Klaassen (not reading all bugmail)]

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8) Gecko/20051105 Firefox/1.5 ID:2005110516

In a build of 2-Mar-2005 it displays the image but on 7-Mar-2005 the image is black.

Comment 4

[Ria Klaassen (not reading all bugmail)]

 Bug 284716 ?

Comment 5

[zug_treno]

(In reply to comment #3)
> In a build of 2-Mar-2005 it displays the image but on 7-Mar-2005 the image is
> black.
 
WFM with Mozilla 1.8b2/20050304, reproducible with Mozilla 1.8b2/20050305.

Comment 6

[steve]

This blacks out for me using Firefox 1.5.0.1 on WinXP and 1.0.7 on Linux (Ubuntu 5.04).

This image appears to have been drawn with the AT&Tdeveloped Graphviz libraries (http://www.graphviz.org/).

I have similar images that can reproduce this problem, all are generated with Graphviz.

I notice the bug 310588 reports the same issue and also appears to have a graphviz test image.

I smell a rat ...

Comment 7

[Glenn Randers-Pehrson]

The image is 7794x9888 in dimensions.  It contains a PNG tRNS chunk that
indicates transparency might be present, although no pixels are actually
transparent.

Seamonkey 1.0 shows a black rectangle, then after about 5 minutes it changes to
white for a little while, with properly sized scroll bars, and then back to
black:
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.1) Gecko/20060130 SeaMonkey/1.0

An "mahowi" build of Firefox-1.5.0.1 displays the image correctly but very
slowly (about 15 minutes).  Once displayed, I can pan and scroll about the
image. This build is using libmng to decode pngs:
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.1) Gecko/20060202 Firefox/1.5.0.1 (mahowi)

Comment 8

[Glenn Randers-Pehrson]

I tried a couple of things to see if performance could be improved.  I cut the image into 4 tiles and put them in a 2x2 table.  Performance was about the same,
about 8 or 9 minutes before anything appeared on screen, with the "mahowi" build.
I converted the image to GIF format, and again got about the same performance.  In fact, the "mahowi" build displayed a black rectangle similar to that shown by SeaMonkey.  SeaMonkey, on the other hand, did quite well with the 2x2 table.  The image appeared on screen in a second or two (similar to IE-7 performance) and I could pan and scroll.  The GIF and the table are at
http://www.simplesystems.org/users/glennrp/mozilla/bug315263
I think this performance issue has only to do with the image dimensions and nothing to do with the fact that it is in PNG format.

Comment 9

[Steve England [:stevee]]

*** Bug 328969 has been marked as a duplicate of this bug. ***

Comment 10

[samuel]

I get a black rectangle under XP with  Gecko/20060508 Firefox/1.5.0.4

WFM under Linux (knoppix 5.0.1)  with debian 1.5.dfsg+1.5.0.3-2

It may have something to do with the fact that my Linux box has 6GB of swap (512M of RAM)

Comment 11

[Christian Franke]

[Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1) Gecko/20061101 SeaMonkey/1.1b]

Bug can be reproduced with SM 1.1b on Win XP SP 2. Another testcase:
Sample graphs from http://kernel.org/pub/linux/kernel/people/rayl/headergraphs/
1st is OK, 2nd and 3rd are displayed as black.

Comment 12

[Alfred Kayser]

Fixed by bug 371135 (in Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9b2pre) Gecko/2007111805 Minefield/3.0b2pre)