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Changes in TIFF v3.4beta028
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<BODY>
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<FONT FACE="Arial, Helvetica, 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>: v3.4beta028<BR>
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<B>Previous Version</B>: <A HREF=v3.4beta024.html>v3.4beta024</A><BR>
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<B>Master FTP Site</B>: <A HREF="ftp://ftp.sgi.com/graphics/tiff">ftp.sgi.com (192.48.153.1), directory graphics/tiff</A><BR>
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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="#man">Changes in the manual pages</A>
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<LI><A HREF="#contrib">Changes in the contributed software</A>
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</UL>
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<P><HR WIDTH=65% ALIGN=right>
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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>a <TT>-noninteractive</TT> flag was added to configure to
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control whether or not it prints and prompts for configuration information
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<LI>various typos and fixes were made in configure for the the
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library-only build support (this and other configure fixes from
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Richard Mlynarik <A HREF=mailto:mly@adoc.xerox.com><mly@adoc.xerox.com></A>)
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<LI>bugs were fixed in the handling of pathnames supplied for external
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packages; e.g. <TT>DIR_JPEG</TT>
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<LI>the handling of <TT>SETMAKE</TT> is now done properly
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<LI>the default prototype function declaration for <TT>pow</TT> was corrected
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<LI>a bug was fixed in <B>libtiff/Makefile.in</B> that caused installation
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to fail on systems without DSO support
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</UL>
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<P><HR WIDTH=65% ALIGN=right>
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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>Acorn RISC O/S support that was accidentally left out of the
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left out of the previous distribution is present (from Peter Greenham)
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<LI>complaints about unknown and/or unsupported codecs have been
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delayed until they are invoked; this permits applications to open
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images and look at tags even if the image data is compressed with
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an unknown/unsupported compression scheme
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<LI>bugs in handling unknown tags have been corrected; applications
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that use multiple codecs, each with codec-specific tags, no longer
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generate confusing error messages
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<LI>a missing pseudo-tag definition in the CCITT G3 codec was fixed
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(this problem caused core dumps in the <TT>tiffcp</TT> program)
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<LI>pseudo-tags are now treated specially; they are always considered
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to be set (i.e. they do not use bits in the <TT>FIELD_*</TT> bit-vectors).
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<LI>the use of strip chopping can now be controlled on a per-file basis
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through a mode parameter supplied when opening a file (``C'' to
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enable strip chopping and ``c'' to disable)
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<LI>two bugs were fixed in the writing of opposite-endian byte-order
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files
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<LI>support was added for three new fax-related tags registered to
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SGI: FaxRecvParams, FaxRecvTime, and FaxSubAddress
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<LI>the bit order of image data read and written can now be controlled
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on a per-file basis through a mode parameter supplied when opening
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a file (``B'' to force MSB2LSB bit order, ``L'' for LSB2MSB bit
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order, and ``H'' for the bit order of the native CPU)
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<LI>the byte order of image and tag data written to newly-created files
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can now be controlled on a per-file basis through a mode parameter
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supplied when openening a file (``b'' to force Big-Endian byte order
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and ``l'' to force Little-Endian byte order)
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<LI>the use memory-mapped files for images opened read-only can now
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be controlled on a per-file basis through a mode parameter supplied
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when opening a file (``M'' to enable use of memory-mapped files
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and ``m'' to disable use)
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<LI>the use of the <TT>WIN32</TT> define in <B>tiffiop.h</B> has
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been replaced by <TT>__WIN32__</TT>
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</UL>
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<P><HR WIDTH=65% ALIGN=right>
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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><TT>fax2ps</TT> now does a <TT>save</TT> and <TT>restore</TT>
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around each page of PostScript; this fixes a problem with VM
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overflow when printing a many-page document on some printers
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<LI>a bug in the handling of 3-channel images by <TT>ras2tiff</TT>
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was fixed
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<LI><TT>tiffcp</TT> has new options to control the byte order of
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newly created files: <B>-B</B> for Big-Endian byte order, <B>-L</B>
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for Little-Endian byte order; a <B>-M</B> option to disable the
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use of memory-mapped files, and a <B>-C</B> option to disable the
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use of strip chopping
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<LI>bugs were fixed in <TT>tiffcp</TT>'s handling of codec-specific tags
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</UL>
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<P><HR WIDTH=65% ALIGN=right>
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<A NAME="man"><B><FONT SIZE=+3>C</FONT>HANGES IN THE MANUAL PAGES:</B></A>
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<UL>
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<LI>the <TT>TIFFOpen</TT> page has been updated to reflect the new
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optional open mode parameters
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</UL>
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<P><HR WIDTH=65% ALIGN=right>
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<A NAME="contrib"><B><FONT SIZE=+3>C</FONT>HANGES IN THE CONTRIBUTED SOFTWARE:</B></A>
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<UL>
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<LI><B>contrib/win95</B> contains information and code from Philippe Tenenhaus
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<A HREF=mailto:100423.3705@compuserve.com><100423.3705@compuserve.com></A>
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about using the software under Windows 95
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<LI><B>contrib/winnt</B> contains information and code from Dave Dyer
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<A HREF=mailto:ddyer@triple-i.com><ddyer@triple-i.com></A>
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about using the software under Windows NT
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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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<ADDRESS>
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<A HREF="sam.html">Sam Leffler</A> / <A HREF="mailto:sam@engr.sgi.com">sam@engr.sgi.com</A>
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Last updated $Date: 1999/08/09 20:21:21 $.
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</ADDRESS>
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