gentoo-full-overlay/metadata/news/2012-04-24-libjpeg-turbo-by-default/2012-04-24-libjpeg-turbo-by-default.en.txt

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Title: The default JPEG implementation
Author: Samuli Suominen <ssuominen@gentoo.org>
Content-Type: text/plain
Posted: 2012-04-24
Revision: 1
News-Item-Format: 1.0
Display-If-Installed: =media-libs/jpeg-8*
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.