230578 - some horizontal lines of bitmap fail to load

Status: RESOLVED FIXED

(Core :: Graphics: ImageLib, defect)

Description

[chrisdlugosz]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.5) Gecko/20031007 Firebird/0.7
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.5) Gecko/20031007 Firebird/0.7

this is a random bitmap generator from random.org.
when loaded, about 15% of the horizontal lines are white.
but this is corrected if i minimize and recall the window.
this problem does not happen with smaller images.

Reproducible: Always

Steps to Reproduce:
1. load  http://www.random.org/cgi-bin/randxbm?width=512&height=512
2.
3.

Actual Results:  
some horizontal lines are white.

Expected Results:  
all lines should have displayed random black or white pixels.

Comment 1

[Steve A]

Also happens in Linux (Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6b)
Gecko/20040102 Firebird/0.7+)  For me approximately 80% of the horizontal lines
white.  In addition to minimizing, problem also clears if I change to another
tab and back again.

Comment 2

[Mike Connor [:mconnor]]

same symptom in Mozilla, moving to appropriate component.

Comment 3

[Christian :Biesinger (don't email me, ping me on IRC)]

anything that triggers a repaint seems to fix this...

os-> all per comment 1

Comment 4

[tor]

Attachment: fix off-by-one in OnDataAvailable rectangle

Comment 5

[Christian :Biesinger (don't email me, ping me on IRC)]

Comment on attachment 138842 [details] [diff] [review]
fix off-by-one in OnDataAvailable rectangle

this is my fault :(

Comment 6

[tor]

Checked in.