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libjpeg-turbo is the new default JPEG implementation
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ssuominen
Developer
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Joined: 30 Sep 2005
Posts: 2115
Location: Finland

PostPosted: Tue Apr 24, 2012 4:16 pm    Post subject: libjpeg-turbo is the new default JPEG implementation Reply with quote

libjpeg-turbo is a derivative of libjpeg that uses MMX, SSE, SSE2,
and NEON SIMD instructions to accelerate baseline JPEG
compression/decompression by about 2-4x on amd64, arm and x86
platforms. It is based on libjpeg/SIMD but has numerous enhancements.

All users are recommended to migrate:

# emerge --deselect media-libs/jpeg
# emerge --oneshot media-libs/libjpeg-turbo

media-libs/jpeg:0 will be left in tree as a fallback implementation.

http://sources.gentoo.org/gitweb/?p=proj/gentoo-news.git;a=tree;f=2012;hb=HEAD
Unstuck. -- desultory
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chtof
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Joined: 29 Aug 2003
Posts: 61
Location: France

PostPosted: Mon Apr 30, 2012 6:23 pm    Post subject: Reply with quote

Thanks for your post, it has helped me.

Great :D

+1
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transcend
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Joined: 05 Nov 2003
Posts: 42
Location: NYC, NY

PostPosted: Sun Jun 30, 2013 5:29 pm    Post subject: Reply with quote

add should we add system-jpeg to our global use flag settings in make.conf?
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Ant P.
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Joined: 18 Apr 2009
Posts: 2280
Location: UK

PostPosted: Mon Jul 01, 2013 12:48 am    Post subject: Reply with quote

Don't add it globally. Packages that use bundled libraries usually have good reason for it.
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