ClearType smoothing pixels are visible when the glyph itself is not

RESOLVED INVALID

Status

()

--
trivial
RESOLVED INVALID
14 years ago
6 years ago

People

(Reporter: bugzilla, Unassigned)

Tracking

Trunk
x86
Windows XP
Points:
---
Bug Flags:
in-testsuite ?

Firefox Tracking Flags

(Not tracked)

Details

Attachments

(2 attachments)

(Reporter)

Description

14 years ago
User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b2) Gecko/20050529 Firefox/1.0+ (bangbang023)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b2) Gecko/20050529 Firefox/1.0+ (bangbang023)

When ClearType is enabled on Windows XP, glyphs that fall outside the visible
area by one pixel cause their sub-pixel smoothing pixels to be *inside* the
visible area. Those pixels are pretty noticeable, since they're a different
color. I will attach a test case and a screenshot of how it looks on my screen.

Reproducible: Always

Steps to Reproduce:
(Reporter)

Comment 1

14 years ago
Created attachment 185041 [details]
Test case (depends on remote CSS and Verdana font)
(Reporter)

Comment 2

14 years ago
Created attachment 185042 [details]
Screenshot with 400% view of problem area
This is an automated message, with ID "auto-resolve01".

This bug has had no comments for a long time. Statistically, we have found that
bug reports that have not been confirmed by a second user after three months are
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Comment 4

13 years ago
Is it possible to be resolved?  I can't think up any idea.
Flags: testcase?
(Reporter)

Comment 5

13 years ago
I have no idea how this all works, but it is probably Windows's job to avoid it. Depends if Windows knows where the viewable area ends, I suppose.
(Reporter)

Comment 6

13 years ago
Confirming that it's Windows's job. Just noticed the same behavior in Forté Agent.

Comment 7

6 years ago
(In reply to Tim De Pauw (ct^) from comment #6)
> Confirming that it's Windows's job. Just noticed the same behavior in Forté
> Agent.

so iINVALID?
(Reporter)

Comment 8

6 years ago
(In reply to Wayne Mery (:wsmwk) from comment #7)
> so iINVALID?

Presumably.
marking invalid (the same issues happens in other applications)
Status: UNCONFIRMED → RESOLVED
Last Resolved: 6 years ago
Resolution: --- → INVALID
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