Open Bug 850194 Opened 7 years ago Updated 7 years ago

Windows processing of image data for icon files can change across os versions

Categories

(Core :: Graphics, defect)

x86_64
Windows 8
defect
Not set

Tracking

()

People

(Reporter: jimm, Unassigned)

Details

Attachments

(1 file)

Attached image example variance
In nsIconChannel we rely on Windows when extracting icon image data from ico files for moz-icons.

http://mxr.mozilla.org/mozilla-central/source/image/decoders/icon/win/nsIconChannel.cpp#453

The preprocessing Windows applies to the image data can change across os versions however, which can cause problems for ref tests. (See bug 848963.) 

I'm not sure if this is a bug that needs to be fixed, but it something we need to be aware of when dealing with ico files.
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