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-<HTML>
-<HEAD>
-<TITLE>
-Changes in TIFF v3.5.7
-</TITLE>
-</HEAD>
-
-<BODY BGCOLOR=white>
-<FONT FACE="Helvetica, Arial, Sans">
-<FONT FACE="Helvetica, Arial, Sans">
-
-<BASEFONT SIZE=4>
-<B><FONT SIZE=+3>T</FONT>IFF <FONT SIZE=+2>C</FONT>HANGE <FONT SIZE=+2>I</FONT>NFORMATION</B>
-<BASEFONT SIZE=3>
-
-<UL>
-<HR SIZE=4 WIDTH=65% ALIGN=left>
-<B>Current Version</B>: v3.5.7<BR>
-<B>Previous Version</B>: <A HREF=v3.5.6-beta.html>v3.5.6 Beta</a><BR>
-<B>Master FTP Site</B>: <A HREF="ftp://ftp.remotesensing.org/pub/libtiff">ftp.remotesensing.org</a>, directory pub/libtiff</A><BR>
-<B>Master HTTP Site</B>: <A HREF="http://www.remotesensing.org/libtiff/">http://www.remotesensing.org/libtiff</a>
-<HR SIZE=4 WIDTH=65% ALIGN=left>
-</UL>
-
-<P>
-This document describes the changes made to the software between the
-<I>previous</I> and <I>current</I> 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:
-<UL>
-<LI><A HREF="#configure">Changes in the software configuration</A>
-<LI><A HREF="#libtiff">Changes in libtiff</A>
-<LI><A HREF="#tools">Changes in the tools</A>
-<LI><A HREF="#lzwkit">Changes in the LZW compression kit</A>
-</UL>
-<p>
-<P><HR WIDTH=65% ALIGN=left>
-
-<!--------------------------------------------------------------------------->
-
-<A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A>
-
-<UL>
-<li> libtiff/libtiff.def: Brent Roman submitted new version adding
-serveral missing entry points. Also add a few other entry points
-later.
-
-<li> configure, Makefile.in, etc: added support for OPTIMIZER being
- set from config.site.
-<li> config.guess: updated wholesale to an FSF version apparently
- from 1998 (as opposed to 1994). This is mainly inspired by
- providing for MacOS X support.
-
-<li> configure/config.site: modified to check if -lm is needed for
- MACHDEPLIBS if not supplied by config.site. Needed for Darwin.
-<li> libtiff/tiff.h: Applied hac to try and resolve the problem
- with the inttypes.h include file on AIX. (Bug 39)
-
-<li> configure, *Makefile.in: Various changes to improve configuration
- for HP/UX specifically, and also in general. (Bug 40) They include:
-<ul>
- <li> Try to handle /usr/bin/sh instead of /bin/sh where necessary.
- <li> Upgrade to HP/UX 10.x+ compiler, linker and dso options.
- <li> Fixed mmap() test to avoid MMAP_FIXED ... it isn't available on HP
- <li> Use -${MAKEFLAGS} in sub makes from makefiles.
- <li> Fixed SCRIPT_SH/SHELL handling.
-</ul>
-<li> configure: Changes for DSO generation on AIX provided by
- John Marquart <jomarqua@indiana.edu>.
-
-<li> configure, libtiff/Makefile.in: Modified to build DSOs properly
- on Darwin thanks to Robert Krajewski (rpk@alum.mit.edu) and
- Keisuke Fujii (fujiik@jlcuxf.kek.jp).
-
-<li> configure, libtiff/Makefile.in: applied OpenBSD patches as per bug 61.
-
-<li> Makefile.in: added DESTDIR support as per bug 60.
-
-<li> libtiff/tif_jpeg.c: Define HAVE_BOOLEAN on windows if RPCNDR.H
- has been included.
-<li> man/Makefile.in: add TIFFClientOpen link as per debian submitted
- bug 66.
-<li> libtiff/Makefile.in: Fixed @DSOSUB_VERSION to be @DSOSUF_VERSION@
- in two places.
-</UL>
-
-<P><HR WIDTH=65% ALIGN=left>
-
-<!--------------------------------------------------------------------------->
-
-<A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A>
-
-
-<UL>
-<li> tif_fax3.c: keep rw_mode flag internal to fax3 state to remember
- whether we are encoding or decoding. This is to ensure graceful
- recovery if TIFFClientOpen() discovers an attempt to open a compressed
- file for "r+" access, and subsequently close it, as it resets the
- tif_mode flag to O_RDONLY in this case to avoid writes, confusing the
- compressor's concept of whether it is in encode or decode mode.
-<li> tif_luv.c/tiff.h/tiffio.h:
- New version of TIFF LogLuv (SGILOG) modules contributed by Greg Ward
- (greg@shutterfly.com). He writes:
-
-<ol>
- <li> I improved the gamut-mapping function in tif_luv.c for imaginary
- colors, because some images were being super-saturated on the input
- side and this resulted in some strange color shifts in the output.
-
- <li> I added a psuedotag in tiff.h to control random dithering during
- LogLuv encoding. This is turned off by default for 32-bit LogLuv and
- on for 24-bit LogLuv output. Dithering improves the average color
- accuracy over the image.
-
- <li> I added a #define for LOG_LUV_PUBLIC, which is enabled by default in
- tiffio.h, to expose internal routines for converting between LogLuv and
- XYZ coordinates. This is helpful for writing more efficient,
- specialized conversion routines, especially for reading LogLuv files.
-</ol>
-
-<li> libtiff/tif_dirinfo.c: don't declare tiffFieldInfo static on VMS.
-
-<li> Added TIFFTAG_COPYRIGHT support.
-<li> tif_getimage.c: Added support for 16bit minisblack/miniswhite
- images in RGBA interface.
-<li> libtiff/tif_dirinfo.c: removed duplicate TIFFTAG_PHOTOSHOP as per
- bug 44.
-<li> libtiff/tif_dirwrite.c: Added support for TIFF_VARIABLE2 in the
- case of writing TIFF_BYTE/TIFF_SBYTE fields as per bug 43.
-
-<li> libtiff/tif_dirinfo.c: Modified the TIFF_BYTE definition for
- TIFFTAG_PHOTOSHOP to use a writecount of TIFF_VARIABLE2 (-3) to
- force use of uint32 counts instead of short counts.
-
-<li> libtiff/tif_dirinfo.c: moved pixar and copyright flags to
- ensure everything is in order.
-
-<li> Integrated experimental OJPEG support from Scott Marovich of HP.
-
-<li> libtiff/tif_open.c: Seek back to zero after failed read,
- before writing header.
-
-<li> libtiff/tiff.h, libtiff/tif_fax3.c: added check for __LP64__
- when checking for 64 bit architectures as per bugzilla bug 67.
-<li> libtiff/tif_getimage.c: Use memmove() instead of TIFFmemcpy()
- in TIFFReadRGBATile() to avoid issues in cases of overlapping
- buffers. See Bug 69 in Bugzilla.
-<li> libtiff/tif_getimage.c: Don't complain for CMYK (separated)
- images with more than four samples per pixel as per bug 73.
-
-<li> libtiff/tif_getimage.c: relax handling of contig case where
-there are extra samples that are supposed to be ignored as per bug 75. This
-should now work for 8bit greyscale or palletted images.
-
-<li> libtiff/tif_packbits.c: fixed memory overrun error as per bug 77.
-
-<li> libtiff/tif_getimage.c: Fixed problem with reading strips or
-tiles that don't start on a tile boundary. Fix contributed by
-Josep Vallverdu (from HP), and further described in bug 47.
-
-<li> libtif/tif_fax3.c: Removed #ifdef PURIFY logic, and modified to
- always use the "safe" version, even if there is a very slight
- cost in performance as per bug 54.
-<li> libtiff/tif_lzw.c: added dummy LZWSetupEncode() to report an
- error about LZW not being available.
-
-<li> libtiff/tif_dir.c: propagate failure to initialize compression
- back from TIFFSetField() as an error status, so applications can
- detect failure.
-
-<li> libtiff/tif_lzw.c: Avoid MS VC++ 5.0 optimization bug as per bug 78.
-
-<li> libtiff/tif_dirwrite.c: added TIFFRewriteDirectory() function.
-Updated TIFFWriteDirectory man page to include TIFFRewriteDirectory.
-
-<li> libtiff/tiff.h: I have created COMPRESSION_CCITT_T4,
- COMPRESSION_CCITT_T6, TIFFTAG_T4OPTIONS and TIFFTAG_T6OPTIONS aliases
- in keeping with TIFF 6.0 standard in tiff.h as per bug 83.
-
-<li> Added PHOTOMETRIC_ITULAB as per bug 90.
-
-</UL>
-
-<P><HR WIDTH=65% ALIGN=left>
-
-<!-------------------------------------------------------------------------->
-
-<A NAME="tools"><B><FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:</B></A>
-
-<UL>
-<li> Brent Roman contributed updated tiffcp utility (and tiffcp.1)
- with support for extracting subimages with the ,n syntax, and also
- adding the -b bias removal flag.
-<li> tiff2ps.c/tiff2ps.1: Substantial changes to tiff2ps by
- Bruce A. Mallett, including a faster encoder, fixes for level
- 2 PostScript, and support for the imagemask operator.
-<li> fax2ps.c: Helge (libtiff at oldach.net) submitted fix
-that corrects behaviour for non-Letter paper
-sizes. (Bug 35) It fixes two problems:
-<br>
- Without scaling (-S) the fax is now centered on the page size specified
- with -H and/or -W. Before, fax2ps was using an obscure and practially
- useless algorithm to allocate the image relative to Letter sized paper
- which sometime sled to useless whitespace on the paper, while at the
- same time cutting of the faxes printable area at the opposite border.
-<br>
-
- Second, scaling now preserves aspect ratio, which makes unusual faxes
- (in particular short ones) print properly.
-
-<li> thumbnail.c: changed default output compression
- to packbits from LZW since LZW isn't generally available.
-<li> tiff2rgba.c: added -n flag to avoid emitting alpha component. Also added
-a man page for tiff2rgba.
-
-<li> tiffcmp.c: Fixed multi samples per pixel support for ContigCompare
-as per bug 53.
-Updated bug section of tiffcmp.1 to note tiled file issues.
-
-<li> libtiff/tif_getimage.c: Fixed so that failure is properly
- reported by gtTileContig, gtStripContig, gtTileSeparate and
- gtStripSeparate as per bug 51.
-
-
-</UL>
-
-<P><HR WIDTH=65% ALIGN=left>
-
-<!--------------------------------------------------------------------------->
-
-<A NAME="lzwkit"><B><FONT SIZE=+3>C</FONT>HANGES IN THE LZW COMPRESSION KIT:</B></A>
-<UL>
- <LI> Rewrote lzw patching process so that is required to enable full
- LZW support is to drop the tif_lzw.c from the
- libtiff-lzw-compression-kit over the one in the libtiff directory.
-
- <LI> Some changes were made to make recovery from failure to
- initialize the LZW compressor more graceful.
-
- <LI> Note that as distributed libtiff support LZW decompression, but
- not LZW compression.
-</UL>
-
-<!--------------------------------------------------------------------------->
-
-<A NAME="contrib"><B><FONT SIZE=+3>C</FONT>HANGES IN THE CONTRIB AREA:</B></A>
-<UL>
-<li> Fixed distribution to include contrib/addtiffo/tif_ovrcache.{c,h}.
-</UL>
-
-<A HREF="index.html"><IMG SRC="images/back.gif"></A> TIFF home page.<BR>
-
-<HR>
-
-Last updated $Date: 2004-11-26 14:37:20 $.
-
-</BODY>
-</HTML>