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<HTML>
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<HEAD>
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<TITLE>
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Changes in TIFF v3.7.0alpha
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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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<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: v3.7.0alpha
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Previous Version: v3.6.1
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Master FTP Site:
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ftp.remotesensing.org, directory pub/libtiff
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Master HTTP Site:
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http://www.remotesensing.org/libtiff
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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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Major Changes
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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 contrib area
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Changes in the LZW compression kit
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<FONT SIZE=+3>M</FONT>AJOR CHANGES:
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Significant changes in software configuration: we are switched
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to GNU autotools now.
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tiffset: tiffset now can set any libtiff supported tags. Tags
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can be supplied by the mnemonic name or number.
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<FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:
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Get rid of the old configuration system and switch to
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GNU autotools.
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<FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:
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libtiff/tif_ojpeg.c: Fixed problem with duplicated SOI and SOF
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markers as per bug
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http://bugzilla.remotesensing.org/show_bug.cgi?id=581.
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libtiff/{tif_open.c, tiffio.h}: New function added:
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TIFFIsBigEndian(). Function returns nonzero if given was file written
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in big-endian order.
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libtiff/tif_print.c: added (untested) support for printing
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SSHORT, SLONG and SRATIONAL fields.
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libtiff/tif_fax3.c: Avoid reading CCITT compression options
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if compression type mismatches. See
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http://bugzilla.remotesensing.org/show_bug.cgi?id=565.
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libtiff/tif_strip.c: Never return 0 from the TIFFNumberOfStrips().
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libtiff/tif_dirread.c: Workaround for broken TIFF writers which
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store single SampleFormat value for multisampled images. See
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http://bugzilla.remotesensing.org/show_bug.cgi?id=562.
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libtiff/tif_write.c: Allow in-place updating of the compressed
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images (don't work properly with all codecs). For details see GDAL bug
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http://bugzilla.remotesensing.org/show_bug.cgi?id=534.
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libtiff/tif_jpeg.c: Workaround for wrong sampling factors used
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in the Intergarph JPEG compressed TIFF images as per bug:
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http://bugzilla.remotesensing.org/show_bug.cgi?id=532.
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libtiff/tif_open.c: Use dummy mmap/munmap functions in
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TIFFClientOpen() when the appropriate client functions was not
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supplied by user.
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libtiff/tif_dirread.c: Fixed problem with handling TIFF_UNDEFINED
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tag type in TIFFFetchNormalTag() as per bug
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http://bugzilla.remotesensing.org/show_bug.cgi?id=508.
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libtiff/tif_codec.c: Fixed typo in TIFFInitPackBits name as per:
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http://bugzilla.remotesensing.org/show_bug.cgi?id=494.
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libtiff/tif_fax3.c: Fixed problem, introdiced in 3.6.1 release,
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with the CCITT encoding modes as per bug
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http://bugzilla.remotesensing.org/show_bug.cgi?id=483.
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We need more work on fax codec to support update mode.
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libtiff/tiff.h: Fixed tag definitions for TIFFTAG_YCLIPPATHUNITS
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and TIFFTAG_INDEXED as per bug
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http://bugzilla.remotesensing.org/show_bug.cgi?id=475.
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libtiff/{tif_win32.c, tif_unix.c}: Check whether the pointer is
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NULL before proceeding further as per bug
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http://bugzilla.remotesensing.org/show_bug.cgi?id=474.
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Check results, returned by the TIFFFdOpen() before returning and close
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file if TIFFFdOpen() failed as per bug
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http://bugzilla.remotesensing.org/show_bug.cgi?id=468.
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libtiff/{libtiff.def, tif_close.c, tiffio.h, tif_open.c}:
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Separate TIFFCleanup() from the TIFFClose() in order to fix the bug
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http://bugzilla.remotesensing.org/show_bug.cgi?id=468.
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libtiff/tif_dirwrite.c: Fixed handling of writable ASCII tags
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that are field_passcount=TRUE properly. Arguably anonymous custom
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tags should be declared as passcount=FALSE, but I don't want to change
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that without a careful review.
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libtiff/tif_write.c: Fixed reporting size of the buffer in case
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of stripped image in TIFFWriteBufferSetup(). As per bug
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http://bugzilla.remotesensing.org/show_bug.cgi?id=460.
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libtiff/tif_dir.c: Incomplete cleanup in TIFFFreeDirectory(),
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patch from Gerben Koopmans.
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libtiff/tif_dirread.c: Check field_passcount value before setting
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the value of undefined type, patch from Gerben Koopmans.
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libtiff/{tiff.h, tif_fax3.c}:Fixes for AMD 64 platform as
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suggested by Jeremy C. Reed.
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libtiff/tif_win32.c: Fixed problem with _TIFFrealloc() when
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the NULL pointer passed. Patch supplied by Larry Grill.
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<FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:
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tiffset: tiffset now can set any libtiff supported tags. Tags
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can be supplied by the mnemonic name or number.
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ycbcr.c: fixed main() declaration as per:
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http://bugzilla.remotesensing.org/show_bug.cgi?id=513.
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tiffsplit: Don't forget
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to copy Photometric Interpretation tag.
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tiffsplit: Fixed problem with
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unproperly written multibyte files. Now output files will be written
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using the same byte order flag as in the input image. See
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http://bugzilla.remotesensing.org/show_bug.cgi?id=574.
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tiffsplit: Copy JPEGTables
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tag contents for JPEG compressed images. Reported by Artem Mirolubov.
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tiffcp: Close output file
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on normal exit.
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tiffcp: Don't emit warnings
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when Orientation tag does not present in the input image.
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tiffcp: Properly set
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Photometric Interpretation in case of JPEG compression of grayscale
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images.
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tiffcp: Fixed problem with wrong
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interpretation of the InkNames tag as per bug
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http://bugzilla.remotesensing.org/show_bug.cgi?id=466.
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Memory leak fixed.
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tiffcp: Fixed problem with
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wrong Photometric setting for non-RGB images.
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<FONT SIZE=+3>C</FONT>HANGES IN THE CONTRIB AREA:
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Outdated stuff removed.
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Almost all programs are sinchronized with the current libtiff
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and should compile without problems.
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<FONT SIZE=+3>C</FONT>HANGES IN THE LZW COMPRESSION
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KIT:
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No changes.
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 TIFF home page.
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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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