From 9491825ddff7a294d1f49061bae7044e426aeb2e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Fri, 6 Nov 2015 05:38:49 +0100 Subject: Imported Upstream version 1.8.3 --- tiff/html/v3.5.3.html | 132 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 132 insertions(+) create mode 100755 tiff/html/v3.5.3.html (limited to 'tiff/html/v3.5.3.html') diff --git a/tiff/html/v3.5.3.html b/tiff/html/v3.5.3.html new file mode 100755 index 0000000..3103a6b --- /dev/null +++ b/tiff/html/v3.5.3.html @@ -0,0 +1,132 @@ + + + +Changes in TIFF v3.5.3 + + + + + + + + +TIFF CHANGE INFORMATION + + + + +

+This document describes the changes made to the software between the +previous and current versions (see above). +If you don't find something listed here, then it was not done in this +timeframe, or it was not considered important enough to be mentioned. +The following information is located here: +

+

+The ChangeLog will follow, but please note the most important change: +LZW compression has been removed. +

+Unisys has the patent on LZW compression and have been very active in +their enforcement of late, demanding payments of $5000 or more from +websites using unlicensed software to create GIF's. They could well +do the same do persons using libtiff to create LZW compressed TIFF +images. +

+From Burn All GIF's Day: +
+The catch is that it appears to be difficult or impossible to get a +Unisys license to use LZW in free software that complies with the Open +Source Definition +

+Unfortunatly, the removal of LZW compression means that saved image size has +grown dramatically. Without a change in the TIFF spec to support +another lossless compression format, this is unavoidable. +

+The library can use zip for lossless compression, but as this is not +part of the spec, TIFFs using zip compression may not work with other +software +

+We will be making a patch available that will contain the LZW +compression code for users who have either obtained a license from +Unisys or are willing to risk it. +

+LZW decompression is unchanged. +

+

+ +CHANGES IN THE SOFTWARE CONFIGURATION: + +
    +
  • Added zip creation to release makefile target + + +
+ +

+ +CHANGES IN LIBTIFF: + + +
    + +
  • Added html for TIFFWriteTile.3t man page. + +
  • Added some changes to tif_write.c to support rewriting existing + fixed sized tiles and strips. Code mods disabled by default, only + enabled if REWRITE_HACK is defined for now. + +
  • Added TIFFWriteTile.3t man page. + +
  • Added notes on use of makefile.vc in build.html, and fixed + email subscription address. + +
  • Fixed apocalypse-inducing y2k bug in contrib/ras/ras2tiff.c + +
  • Did some casts cleaning up to reduce compiler warnings in tif_fax3.c, + from Bruce Carmeron -- modifications of + changes made by Frank (sun cc still complained on cast). + +
  • fixed various VC++ warnings as suggested by Gilles Vollant + . + +
  • Modified TIFFquery.3t man pages info on TIFFIsByteSwapped() to + not imply applications are responsible for image data swapping. + +
  • HTML-ized the man pages, added to html/man + +
  • Removed LZW Compression to comply with Unisys patent extortion. + +
  • Corrected one remaining 16 -> 32 bit value in tif_fax3.c, + From Ivo Penzar Added patch from Ivo Penzar to have TiffAdvanceDirectory handle + memory mapped files. +
+ +

+ +CHANGES IN THE TOOLS: + +
    +
  • Fixed apocalypse-inducing y2k bug in contrib/ras/ras2tiff.c +
+ + TIFF home page.
+ +
+ +Last updated $Date: 2004-11-26 14:37:20 $. + + + -- cgit v1.2.3