mozjpeg

Автор	SHA1	Сообщение	Дата
Pierre Ossman	5eb84ff97f	Add MMX SIMD implementation of computationally intensive routines. git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@17 632fc199-4ca6-4c93-a231-07263d6284db	2009-03-09 13:25:30 +00:00
MIYASAKA Masaru	a2e6a9dd47	IJG R6b with x86SIMD V1.02 Independent JPEG Group's JPEG software release 6b with x86 SIMD extension for IJG JPEG library version 1.02	2015-07-29 16:36:25 -05:00
Thomas G. Lane	489583f516	The Independent JPEG Group's JPEG software v6a	2015-07-29 15:32:35 -05:00
Thomas G. Lane	36a4ccccd3	The Independent JPEG Group's JPEG software v5	2015-07-29 15:28:00 -05:00
Pierre Ossman	dedc42e268	"Optimise" quantization step by replacing the division by a multiplication. This has no measurable difference right now but makes it possible to do SIMD implementations of this stage. git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@16 632fc199-4ca6-4c93-a231-07263d6284db	2009-03-09 13:23:04 +00:00
Pierre Ossman	49dcbfbf13	Split up the forward DCT routine into three stages Divide it into sample conversion, DCT and quantization in order to easily provide alternative implementations of each stage. git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@13 632fc199-4ca6-4c93-a231-07263d6284db	2009-03-09 10:37:20 +00:00