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<TITLE>
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Changes in TIFF v3.4beta028
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</TITLE>
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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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<FONT SIZE=+3>T</FONT>IFF <FONT SIZE=+2>C</FONT>HANGE <FONT SIZE=+2>I</FONT>NFORMATION
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<BASEFONT SIZE=3>
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Current Version: v3.4beta028
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Previous Version: v3.4beta024
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Master FTP Site: ftp.sgi.com (192.48.153.1), directory graphics/tiff
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This document describes the changes made to the software between the
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previous and current 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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Changes in the software configuration
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Changes in libtiff
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Changes in the tools
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Changes in the manual pages
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Changes in the contributed software
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<FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:
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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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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 <mly@adoc.xerox.com>)
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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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the handling of <TT>SETMAKE</TT> is now done properly
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the default prototype function declaration for <TT>pow</TT> was corrected
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a bug was fixed in libtiff/Makefile.in that caused installation
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to fail on systems without DSO support
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<FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:
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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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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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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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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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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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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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two bugs were fixed in the writing of opposite-endian byte-order
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files
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support was added for three new fax-related tags registered to
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SGI: FaxRecvParams, FaxRecvTime, and FaxSubAddress
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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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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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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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the use of the <TT>WIN32</TT> define in tiffiop.h has
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been replaced by <TT>__WIN32__</TT>
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<FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:
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<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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a bug in the handling of 3-channel images by <TT>ras2tiff</TT>
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was fixed
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<TT>tiffcp</TT> has new options to control the byte order of
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newly created files: -B for Big-Endian byte order, -L
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for Little-Endian byte order; a -M option to disable the
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use of memory-mapped files, and a -C option to disable the
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use of strip chopping
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bugs were fixed in <TT>tiffcp</TT>'s handling of codec-specific tags
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<FONT SIZE=+3>C</FONT>HANGES IN THE MANUAL PAGES:
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the <TT>TIFFOpen</TT> page has been updated to reflect the new
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optional open mode parameters
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<FONT SIZE=+3>C</FONT>HANGES IN THE CONTRIBUTED SOFTWARE:
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contrib/win95 contains information and code from Philippe Tenenhaus
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<100423.3705@compuserve.com>
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about using the software under Windows 95
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contrib/winnt contains information and code from Dave Dyer
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<ddyer@triple-i.com>
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about using the software under Windows NT
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 TIFF home page.
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<ADDRESS>
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Sam Leffler / sam@engr.sgi.com
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Last updated $Date: 1999/08/09 20:21:21 $.
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</ADDRESS>
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</BODY>
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</HTML>
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