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<HTML>
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<TITLE>
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Changes in TIFF v3.5.6
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</TITLE>
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</HEAD>
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<BODY BGCOLOR=white>
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<FONT FACE="Helvetica, Arial, Sans">
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<FONT FACE="Helvetica, Arial, Sans">
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<BASEFONT SIZE=4>
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<B><FONT SIZE=+3>T</FONT>IFF <FONT SIZE=+2>C</FONT>HANGE <FONT SIZE=+2>I</FONT>NFORMATION</B>
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<BASEFONT SIZE=3>
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<UL>
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<HR SIZE=4 WIDTH=65% ALIGN=left>
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<B>Current Version</B>: v3.5.6beta<BR>
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<B>Previous Version</B>: <A HREF=v3.5.5.html>v3.5.5</a><BR>
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<B>Master FTP Site</B>: <A HREF="ftp://ftp.onshore.com/pub/libtiff">ftp.onshore.com</a>, directory pub/libtiff</A><BR>
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<B>Master HTTP Site</B>: <A HREF="http://www.remotesensing.org/libtiff/">http://www.remotesensing.org/libtiff</a>
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<HR SIZE=4 WIDTH=65% ALIGN=left>
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</UL>
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<P>
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This document describes the changes made to the software between the
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<I>previous</I> and <I>current</I> versions (see above).
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If you don't find something listed here, then it was not done in this
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timeframe, or it was not considered important enough to be mentioned.
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The following information is located here:
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<UL>
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<LI><A HREF="#configure">Changes in the software configuration</A>
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<LI><A HREF="#libtiff">Changes in libtiff</A>
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<LI><A HREF="#tools">Changes in the tools</A>
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<LI><A HREF="#contrib">Changes in contrib</A>
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<LI><A HREF="#lzwkit">Changes in the LZW compression kit</A>
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</UL>
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<p>
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<P><HR WIDTH=65% ALIGN=left>
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<A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A>
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<UL>
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<LI> Added GNULDdso target and switched linux and freebsd to use it.
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<LI> tools/Makefile.in: Modified to install properly on SGI.
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<LI> configure: Fixed DSO test for Linux as per patch from
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Jan Van Buggenhout <chipzz@Ace.ULYSSIS.Student.KULeuven.Ac.Be>.
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</UL>
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<P><HR WIDTH=65% ALIGN=left>
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<A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A>
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<UL>
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<LI> tif_dir.c: Clear TIFF_ISTILED flag in TIFFDefaultDirectory
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as per http://bugzilla.remotesensing.org/show_bug.cgi?id=18
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from vandrove@vc.cvut.cz.
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<LI> Modified tif_packbits.c decoding to avoid overrunning the
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output buffer, and to issue a warning if data needs to be
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discarded. See http://bugzilla.remotesensing.org/show_bug.cgi?id=18
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<LI> Modified TIFFClientOpen() to emit an error on an attempt to
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open a comperessed file for update (O_RDWR/r+) access. This is
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because the compressor/decompressor code gets very confused when
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the mode is O_RDWR, assuming this means writing only. See
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bug http://bugzilla.remotesensing.org/show_bug.cgi?id=13
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<LI> Applied patch for 0x0000 sequences in tif_fax3.h's definition
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of EXPAND1D() as per bug 11 (from Roman).
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<LI> Fixed tiffcomp.h to avoid win32 stuff if unix #defined, to improve
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cygwin compatibility.
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<LI> Applied patch from Roman Shpount to tif_fax3.c. This seems to
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be a proper fix to the buffer sizing problem. See
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http://bugzilla.remotesensing.org/show_bug.cgi?id=11
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<LI> Fixed tif_getimage.c to fix overrun bug with YCbCr images without
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downsampling. http://bugzilla.remotesensing.org/show_bug.cgi?id=10
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Thanks to Nick Lamb <njl98r@ecs.soton.ac.uk> for reporting the
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bug and proving the patch.
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<LI> Fixed tif_jpeg.c so avoid destroying the decompressor before
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we are done access data thanks to bug report from:
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Michael Eckstein <eckstein@gepro.cz>.
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<LI> tif_open.c: Don't set MMAP for O_RDWR files.
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<LI> tif_open.c: Set STRIPCHOP_DEFAULT for O_RDWR as well as O_RDONLY
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so that files opened for update can be strip chopped too.
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<LI> tif_read.c: fixed up bug with files missing rowsperstrip and
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the strips per separation fix done a few weeks ago.
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<LI> Tentatively added support for SAMPLEFORMAT_COMPLEXIEEEFP, and
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SAMPLEFORMAT_COMPLEXINT.
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<LI> index.html, bugs.html: added bugzilla info.
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<LI> tif_read.c: fix subtle bug with determining the number of
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rows for strips that are the last strip in a separation but
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not the last strip of all in TIFFReadEncodedStrip().
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<LI> Applied 16/32 bit fix to tif_fax3.c. Fix supplied by
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Peter Skarpetis <peters@serendipity-software.com.au>
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<LI> Modified tiffio.h logic with regard to including windows.h. It
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won't include it when building with __CYGWIN__.
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<LI> README: update to mention www.libtiff.org, don't list Sam's old
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email address.
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<LI> libtiff/tif_dirread.c: Don't use estimate strip byte count for
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one tile/strip images with an offset, and byte count of zero. These
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could be "unpopulated" images.
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<LI> tif_win32.c: Applied patch to fix overreads and ovverwrites
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caught by BoundsChecker. From Arvan Pritchard
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<arvan.pritchard@infomatix.co.uk> (untested).
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<LI> tif_getimage.c: Applied patch to silence VC6 warnings. From
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Arvan Pritchard <arvan.pritchard@informatix.co.uk>
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<LI> tif_lzw.c: Applied patch to silence VC6 warnings. From
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Arvan Pritchard <arvan.pritchard@informatix.co.uk>
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<LI> libtiff/tif_apple.c: Applied "Carbon" support patches supplied by
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Leonard Rosenthol <leonardr@lazerware.com>. May interfere
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with correct building on older systems. If so, please let me know.
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</UL>
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<P><HR WIDTH=65% ALIGN=left>
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<A NAME="tools"><B><FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:</B></A>
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<UL>
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<LI> tools/rgb2ycbcr.c: fixed output strip size to account for vertical
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roundup if rows_per_strip not a multiple of vertical sample size.
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<LI> tools/tiffsplit.c: Copy TIFFTAG_SAMPLEFORMAT.
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<LI> Modified tiff2bw to ensure portions add to 100%, and that
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white is properly recovered. See bug
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http://bugzilla.remotesensing.org/show_bug.cgi?id=15 Patch
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c/o Stanislav Brabec <utx@penguin.cz>
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</UL>
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<P><HR WIDTH=65% ALIGN=left>
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<A NAME="contrib"><B><FONT SIZE=+3>C</FONT>HANGES IN CONTRIB:</B></A>
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<UL>
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<LI> contrib/addtiffo: Added "averaging" resampling option.
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<LI> Added contrib/stream (stream io) code submitted by Avi Bleiweiss.
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</UL>
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<P><HR WIDTH=65% ALIGN=left>
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<A NAME="lzwkit"><B><FONT SIZE=+3>C</FONT>HANGES IN THE LZW COMPRESSION KIT</B></A>
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<UL>
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<LI> updated tif_dir.c to reflect changes to no-lzw tif_dir.c
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</UL>
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<A HREF="index.html"><IMG SRC="images/back.gif"></A> TIFF home page.<BR>
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<HR>
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Last updated $Date: 2006/03/18 17:12:47 $.
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</BODY>
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</HTML>
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