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+<HTML>
+<HEAD>
+<TITLE>
+ Changes in TIFF v3.9.0beta
+</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>: v3.9.0beta<BR>
+<B>Previous Version</B>: <A HREF=v3.8.2.html>v3.8.2</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="#hightlights">Major Changes</A>
+<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="#contrib">Changes in the contrib area</A>
+</UL>
+<p>
+<P><HR WIDTH=65% ALIGN=left>
+
+<!--------------------------------------------------------------------------->
+
+<A NAME="highlights"><B><FONT SIZE=+3>M</FONT>AJOR CHANGES:</B></A>
+
+<UL>
+ <li> New <b>tiffcrop</b> utility contributed by Richard Nolde.
+ <b>tiffcrop</b> does the same as <b>tiffcp</b>, but also can crop,
+ extract, rotate and mirror images.
+
+ <li> tif_jbig.c: Added support for JBIG compression scheme
+ (34661 code), contributed by Lee Howard.
+
+ <li> Totally new implementation of OJPEG module from
+ Joris Van Damme. No need to patch libjpeg anymore. Many OJPEG files
+ should be supported now that was not supported previously.
+
+</UL>
+
+
+<P><HR WIDTH=65% ALIGN=left>
+<!--------------------------------------------------------------------------->
+
+<A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A>
+
+<UL>
+
+ <li> tif_config.wince.h, tiffconf.wince.h, tif_wince.c: WinCE-specific
+ compatibility stuff from Mateusz Loskot.
+
+ <li> Rename config.h.vc and tif_config.h.vc to config.vc.h and
+ tif_config.vc.h for easier identification by folks using an IDE.
+
+ <li> configure, configure.ac: OJPEG support enabled by default (i.e.,
+ whe the conformant JPEG support enabled).
+
+ <li> README.vms, Makefile.am, configure.com, libtiff/{Makefile.am,
+ tif_config.h-vms, tif_stream.cxx, tif_vms.c, tiffconf.h-vms}:
+ Added support for OpenVMS by Alexey Chupahin.
+
+ <li> nmake.opt: use /EHsc for VS2005 compatibility. Also define
+ _CRT_SECURE_NO_DEPRECATE to avoid noise on VS2005.
+
+</UL>
+
+<P><HR WIDTH=65% ALIGN=left>
+
+<!--------------------------------------------------------------------------->
+
+<A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A>
+
+<UL>
+ <li> tif_dirinfo.c (_TIFFFindFieldInfo): Don't attempt to
+ bsearch() on a NULL fieldinfo list.
+ (_TIFFFindFieldInfoByName): Don't attempt to lfind() on a NULL
+ fieldinfo list.
+
+ <li> tif_jpeg.c: Changed JPEGInitializeLibJPEG() so that it
+ will convert from decompressor to compressor or compress to decompress
+ if required by the force arguments. This works around a problem in
+ where the JPEGFixupTestSubsampling() may cause a decompressor to
+ be setup on a directory when later a compressor is required with the
+ force flag set. Occurs with the addtiffo program for instance.
+
+ <li> tif_dirwrite.c: Fixed swapping of byte arrays stored
+ in-place in tag offsets as per bug
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1363">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=1363</a>
+
+ <li> tif_getimage.c: workaround for 'Fractional scanline' error
+ reading OJPEG images with rowsperstrip that is not a multiple of
+ vertical subsampling factor. This bug is mentioned in
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1390">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=1390</a> and
+ <a href="http://www.asmail.be/msg0054766825.html">
+ http://www.asmail.be/msg0054766825.html</a>
+
+ <li> tif_dirread.c: Added special function to handle
+ SubjectDistance EXIF tag as per bug
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1362">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=1362</a>
+
+ <li> tif_dirread.c, tif_read.c: Type of the byte counters
+ changed from tsize_t to uint32 to be able to work with data arrays
+ larger than 2GB. Fixes bug
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=890">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=89</a>
+ Idea submitted by Matt Hancher.
+
+ <li> tif_dir.c: Workaround for incorrect TIFFs with
+ ExtraSamples == 999 produced by Corel Draw. As per bug
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1490">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=1490</a>
+
+ <li> tif_write.c: TIFFAppendToStrip() - clear sorted flag if
+ we move a strip.
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1359">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=1359</a>
+
+ <li> tif_fax3.c: Save the state of printdir codec dependent method.
+
+ <li> tif_jpeg.c: Save the state of printdir codec dependent method
+ as per bug
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1273">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=1273</a>
+
+ <li> tif_win32.c: Fixed problem with offset value manipulation
+ as per bug
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1322">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=1322</a>
+
+ <li> tif_fax3.c, tif_next.c, tif_pixarlog.c: Fixed multiple
+ vulnerabilities, as per Gentoo bug ():
+ <a href="http://bugs.gentoo.org/show_bug.cgi?id=142383">
+ http://bugs.gentoo.org/show_bug.cgi?id=142383</a>
+
+ <li> tif_lzw.c, tif_zip.c: Fixed problems with mixing
+ encoding and decoding on the same read-write TIFF handle. The LZW
+ code can now maintain encode and decode state at the same time. The
+ ZIP code will switch back and forth as needed.
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=757">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=757</a>
+
+ <li> tif_msdos.c: Avoid handle leak for failed opens.
+ c/o Thierry Pierron
+
+ <li> tif_dirwrite.c: take care not to flush out buffer of strip/tile
+ data in _TIFFWriteDirectory if TIFF_BEENWRITING not set. Relates
+ to bug report by Peng Gao with black strip at bottom of images.
+
+ <li> tif_dirwrite.c: make sure to use uint32 for wordcount in
+ TIFFWriteNormanTag if writecount is VARIABLE2 for ASCII fields.
+ It already seems to have been done for other field types. Needed
+ for "tiffset" on files with geotiff ascii text.
+
+ <li> tif_dirinfo.c: Added missed EXIF tag ColorSpace (40961).
+
+ <li> tif_dirread.c: Move IFD fetching code in the separate
+ function TIFFFetchDirectory() avoiding code duplication in
+ TIFFReadDirectory() and TIFFReadCustomDirectory().
+
+ <li>tif_readdir.c: Added case in EstimateStripByteCounts() for tiled
+ files. Modified TIFFReadDirectory() to not invoke
+ EstimateStripByteCounts() for case where entry 0 and 1 are unequal but
+ one of them is zero.
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1204">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=1204</a>
+
+ <li> tif_open.c, tif_dirread.c, tiffiop.h: Move IFD looping
+ checking code in the separate function TIFFCheckDirOffset().
+
+ <li> tif_aux.c: Added _TIFFCheckRealloc() function.
+
+ <li> tif_fax3.c: Fixed problems in fax decoder as per bug
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1194">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=1194</a>
+
+ <li> tif_jbig.c: Added support for JBIG compression scheme
+ (34661 code) contributed by Lee Howard. As per bug
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=896">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=896</a>
+
+ <li> tif_getimage.c: Added support for planarconfig separate
+ non-subsampled YCbCr (i.e. separate YCbCr with subsampling [1,1]).
+
+ <li> tif_getimage.c: Revision of all RGB(A) put routines:
+ <ul>
+ <li> Conversion of unassociated alpha to associated alpha
+ now done with more performant LUT, and calculation more
+ correct.
+ <li> Conversion of 16bit data to 8bit data now done with
+ more performant LUT, and calculation more correct
+ <li> Bugfix of handling of 16bit RGB with unassociated alpha
+ </ul>
+
+ <li> tif_ojpeg.c: totally new implementation
+
+ <li> tif_getimage.c: removed TIFFTAG_JPEGCOLORMODE handling
+ of OJPEG images in favor of tif_getimage.c native handling of
+ YCbCr and desubsampling.
+
+ <li> tif_jpeg.c: JPEGVSetField() so that altering the photometric
+ interpretation causes the "upsampled" flag to be recomputed. Fixes
+ peculiar bug where photometric flag had to be set before jpegcolormode
+ flag.
+
+</UL>
+
+<P><HR WIDTH=65% ALIGN=left>
+
+<!-------------------------------------------------------------------------->
+
+<A NAME="tools"><B><FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:</B></A>
+
+<UL>
+ <li> tiff2ps.c: Added support 16-bit images as per bug
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1566">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=1566</a>.
+ Patch from William Bader.
+
+ <li> tiff2pdf.c: Fix for TIFFTAG_JPEGTABLES tag fetching and
+ significant upgrade of the whole utility as per bug
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1560">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=1560</a>.
+ Now we don't need tiffiop.h in tiff2pdf anymore and will open output
+ PDF file using TIFFClientOpen() machinery as it is implemented
+ by Leon Bottou.
+
+ <li> tiffcrop.c: New tiffcrop utility contributed
+ by Richard Nolde. As per bug
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1383">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=1383</a>
+
+ <li> tiff2pdf.c: Do not assume inches when the resolution units
+ do not specified. As per bug
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1366">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=1366</a>
+
+ <li> tiffset.c: Properly handle tags with TIFF_VARIABLE writecount.
+ As per bug
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1350">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=1350</a>
+
+ <li> tif2rgba.c: This utility does not work properly on big-endian
+ architectures. It was fixed including the bug
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1149">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=1149</a>
+
+ <li> tiff2pdf.c: Fix handling of -q values.
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=587">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=587</a>
+
+ <li> tiffcmp.c: Fixed floating point comparison logic as per bug
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1191">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=1191</a>
+
+ <li> tiff2pdf.c: Fixed buffer overflow condition in
+ t2p_write_pdf_string() as per bug
+ <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1196">
+ http://bugzilla.remotesensing.org/show_bug.cgi?id=1196</a>
+
+</UL>
+
+<P><HR WIDTH=65% ALIGN=left>
+
+<!--------------------------------------------------------------------------->
+
+<A NAME="contrib"><B><FONT SIZE=+3>C</FONT>HANGES IN THE CONTRIB AREA:</B></A>
+
+<UL>
+
+ <li> contrib/addtiffo/tif_overview.c: Fix problems with odd sized
+ output blocks in TIFF_DownSample_Subsampled() (bug 1542).
+
+ <li> contrib/dbs/xtiff/xtiff.c: Make xtiff utility compilable.
+ Though it is still far from the state of being working and useful.
+
+</UL>
+
+Last updated $Date: 2007/07/13 13:40:12 $.
+
+</BODY>
+</HTML>