180877 - Strange effects with megaborders

Status: RESOLVED WORKSFORME

(Core :: Web Painting, defect, P4)

Description

[Niklas Dougherty]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en-US; rv:1.2b) Gecko/20021031
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en-US; rv:1.2b) Gecko/20021031

Consider an element border of immense proportions, say > 500px.

Situation 1: a <p>test</p> with a border of 1000px will make the text within the
paragraph disappear.

Situation 2: the same paragraph with a border of 30000px will be completely
shattered into checkered patterns and weird diagonal cuts.


Reproducible: Always

Steps to Reproduce:
1. Load testcase 1
2. Load testcase 2
3. Ponder the style algorithms

Comment 1

[Niklas Dougherty]

Attachment: 1000px border

Use Find to find the text, since it is black on black due to the border eating
inwards.

Comment 2

[Niklas Dougherty]

Attachment: 30000px border

Scroll around and see the Cubism.

Comment 3

[Niklas Dougherty]

Attachment: screen dump

This is not the usual "forgot to paint this area" that is covered in another
bug. This is a consistent _diagonal_ cut that doesn't go away by going back and
forth.

Comment 4

[David Baron :dbaron: (⌚️UTC-5, no longer working on Mozilla)]

This works fine for me on Linux.  Is it Mac-only or it it just that the amounts
required to trigger the bug are different on different platforms?  ->GFX

Comment 5

[Michiel van Leeuwen (email: mvl+moz@)]

I do see strange things happening on linux.

Comment 6

[David Baron :dbaron: (⌚️UTC-5, no longer working on Mozilla)]

I see it now.  Not sure why I didn't earlier.  Perhaps related to bug 115526,
although it's not fixed in my tree.  However, it may not be.

Comment 7

[Kevin McCluskey (gone)]

-> dcone

Comment 8

[Zack Weinberg (:zwol)]

I do not see the "cubism" on Linux but I do see the text getting covered up by the border in both test cases.  Recategorizing.

Comment 9

[Gregory Pappas [:gregp]]

Unable to reproduce