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LibGfx: Add the start of a JBIG2 loader

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JBIG2 is infamous for two things:

1. It's used in xerox scanners were it falsifies scanned numbers:

https://www.dkriesel.com/en/blog/2013/0802_xerox-workcentres_are_switching_written_numbers_when_scanning

2. It was allegedly used in an iOS zero day, in a very cool way:

https://googleprojectzero.blogspot.com/2021/12/a-deep-dive-into-nso-zero-click.html

Needless to say, we need support for it in Serenity. (...because it's
used in PDF files.)

This adds all the scaffolding, but no actual implementation yet.

It's enough for `file` to print the mime type of .jb2 files, but `image`
can't do anything with the files yet.
This commit is contained in:
Nico Weber 2024-03-03 09:21:30 -05:00 • committed by Andreas Kling
parent d7ad134ae5
commit 58838db445
12 changed files with 86 additions and 22 deletions
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2
Base/res/apps/ImageViewer.af
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@ -4,4 +4,4 @@ Executable=/bin/ImageViewer
Category=Gra&phics
[Launcher]
FileTypes=bmp,dds,gif,ico,iff,jpeg,jpg,jxl,lbm,pbm,pgm,png,ppm,qoi,tga,tiff,tif,tvg
FileTypes=bmp,dds,gif,ico,iff,jb2,jbig2,jpeg,jpg,jxl,lbm,pbm,pgm,png,ppm,qoi,tga,tiff,tif,tvg