Files
mozjpeg/release
DRC cdf8deb55a Install docs when doing 'make install' on Unix; Fix 'install' target on Windows; Include wizard.txt, example.c, and structure.txt in installed docs
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@794 632fc199-4ca6-4c93-a231-07263d6284db
2012-02-10 01:37:20 +00:00
..
2011-03-22 09:31:25 +00:00
2011-05-25 03:51:29 +00:00

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\f0\fs24 \cf0 libjpeg-turbo is a derivative of libjpeg that uses SIMD instructions (MMX, SSE2, NEON) to accelerate baseline JPEG compression and decompression on x86, x86-64, and ARM systems.  On such systems, libjpeg-turbo is generally 2-4x as fast as the unmodified version of libjpeg, all else being equal.\
\
libjpeg-turbo was originally based on libjpeg/SIMD by Miyasaka Masaru, but the TigerVNC and VirtualGL projects made numerous enhancements to the codec in 2009, including improved support for Mac OS X, 64-bit support, support for 32-bit and big-endian pixel formats (RGBX, XBGR, etc.), accelerated Huffman encoding/decoding, and various bug fixes.  The goal was to produce a fully open-source codec that could replace the partially closed-source TurboJPEG/IPP codec used by VirtualGL and TurboVNC.  libjpeg-turbo generally achieves 80-120% of the performance of TurboJPEG/IPP.  It is faster in some areas but slower in others.\
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In early 2010, libjpeg-turbo spun off into its own independent project, with the goal of making high-speed JPEG compression/decompression technology available to a broader range of users and developers.\
}