13 Commits

Author	SHA1	Message	Date
DRC	e2563adb2e	Some of the IJG headers say "Modified by", so clarify that our "Modifications" are not referring to these.	2013-09-28 03:22:53 +00:00
DRC	de30fe9460	Change the copyright notices to make it clear that our modified files are not part of the IJG's software.	2012-12-31 02:42:18 +00:00
DRC	a112f12efd	Compiler warnings	2012-01-31 05:27:41 +00:00
DRC	756095aaf0	The SIMD quantization algorithm does not produce correct results with the fast forward integer DCT and JPEG qualities >= 98, so for now, use the non-SIMD quantization function under those circumstances.	2011-02-18 20:50:08 +00:00
DRC	9a6243c913	Some systems (notably OS X Leopard) have fls() already, so rename ours to avoid conflict	2009-10-01 22:26:14 +00:00
Pierre Ossman	59641bb95f	Move variable init around a bit to please crappy compilers.	2009-03-13 12:17:26 +00:00
Pierre Ossman	c7de3b4d83	Make sure the work space memory is properly aligned ... We use the heap allocators to avoid having more than one implementation of the alignment logic.	2009-03-09 13:29:37 +00:00
Pierre Ossman	e1594812ac	"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.	2009-03-09 13:23:04 +00:00
Pierre Ossman	c5cf41164a	Framework for supporting SIMD acceleration ... Designed to impose minimal changes on the "normal" code.	2009-03-09 13:15:56 +00:00
Pierre Ossman	a4f55b50c9	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.	2009-03-09 10:37:20 +00:00
Thomas G. Lane	16c97143f3	The Independent JPEG Group's JPEG software v6a	2014-09-07 20:00:00 +01:00
Thomas G. Lane	0baf670330	The Independent JPEG Group's JPEG software v6	2014-09-07 20:00:00 +01:00
Thomas G. Lane	c5414ae082	The Independent JPEG Group's JPEG software v5	2014-09-07 20:00:00 +01:00