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	Changes in TIFF v3.7.0alpha

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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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Current Version: v3.7.0alpha

Previous Version: v3.6.1

Master FTP Site: 

ftp.remotesensing.org, directory pub/libtiff

Master HTTP Site: 

http://www.remotesensing.org/libtiff 

This document describes the changes made to the software between the

previous and current 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:

Major Changes

Changes in the software configuration

Changes in libtiff

Changes in the tools

Changes in the contrib area

Changes in the LZW compression kit

<font size="+3">M</font>AJOR CHANGES:

	
 Significant changes in software configuration: we are switched

	to GNU autotools now.

	
 tiffset: tiffset now can set any libtiff supported tags. Tags

	can be supplied by the mnemonic name or number.

<font size="+3">C</font>HANGES IN THE SOFTWARE CONFIGURATION:

	
 Get rid of the old configuration system and switch to

	GNU autotools.

<font size="+3">C</font>HANGES IN LIBTIFF:

	
 libtiff/tif_ojpeg.c: Fixed problem with duplicated SOI and SOF

	markers as per bug

		http://bugzilla.remotesensing.org/show_bug.cgi?id=581.

	
 libtiff/{tif_open.c, tiffio.h}: New function added:

	TIFFIsBigEndian(). Function returns nonzero if given was file written

	in big-endian order.

	
 libtiff/tif_print.c: added (untested) support for printing

	SSHORT, SLONG and SRATIONAL fields.

	
 libtiff/tif_fax3.c: Avoid reading CCITT compression options

	if compression type mismatches. See

		http://bugzilla.remotesensing.org/show_bug.cgi?id=565.

	
 libtiff/tif_strip.c: Never return 0 from the TIFFNumberOfStrips().

	
 libtiff/tif_dirread.c: Workaround for broken TIFF writers which

	store single SampleFormat value for multisampled images. See

		http://bugzilla.remotesensing.org/show_bug.cgi?id=562.

	
 libtiff/tif_write.c: Allow in-place updating of the compressed

	images (don't work properly with all codecs). For details see GDAL bug

		http://bugzilla.remotesensing.org/show_bug.cgi?id=534.

	
 libtiff/tif_jpeg.c: Workaround for wrong sampling factors used

	in the Intergarph JPEG compressed TIFF images as per bug:

		http://bugzilla.remotesensing.org/show_bug.cgi?id=532.

	
 libtiff/tif_open.c: Use dummy mmap/munmap functions in

	TIFFClientOpen() when the appropriate client functions was not

	supplied by user.

	
 libtiff/tif_dirread.c: Fixed problem with handling TIFF_UNDEFINED

	tag type in TIFFFetchNormalTag() as per bug

		http://bugzilla.remotesensing.org/show_bug.cgi?id=508.

	
 libtiff/tif_codec.c: Fixed typo in TIFFInitPackBits name as per:

		http://bugzilla.remotesensing.org/show_bug.cgi?id=494.

	
 libtiff/tif_fax3.c: Fixed problem, introdiced in 3.6.1 release,

	with the CCITT encoding modes as per bug

		http://bugzilla.remotesensing.org/show_bug.cgi?id=483.

        We need more work on fax codec to support update mode.

	
 libtiff/tiff.h: Fixed tag definitions for TIFFTAG_YCLIPPATHUNITS

	and TIFFTAG_INDEXED as per bug

		http://bugzilla.remotesensing.org/show_bug.cgi?id=475.

	
 libtiff/{tif_win32.c, tif_unix.c}: Check whether the pointer is

	NULL before proceeding further as per bug

		http://bugzilla.remotesensing.org/show_bug.cgi?id=474.

	Check results, returned by the TIFFFdOpen() before returning and close

	file if TIFFFdOpen() failed as per bug

		http://bugzilla.remotesensing.org/show_bug.cgi?id=468.

	
 libtiff/{libtiff.def, tif_close.c, tiffio.h, tif_open.c}:

	Separate TIFFCleanup() from the TIFFClose() in order to fix the bug

	http://bugzilla.remotesensing.org/show_bug.cgi?id=468.

	
 libtiff/tif_dirwrite.c: Fixed handling of writable ASCII tags

	that are field_passcount=TRUE properly.  Arguably anonymous custom

	tags should be declared as passcount=FALSE, but I don't want to change

	that without a careful review.

	
 libtiff/tif_write.c: Fixed reporting size of the buffer in case

	of stripped image in TIFFWriteBufferSetup(). As per bug

	http://bugzilla.remotesensing.org/show_bug.cgi?id=460.

	
 libtiff/tif_dir.c: Incomplete cleanup in TIFFFreeDirectory(),

	patch from Gerben Koopmans.

	
 libtiff/tif_dirread.c: Check field_passcount value before setting

	the value of undefined type, patch from Gerben Koopmans.		

	
 libtiff/{tiff.h, tif_fax3.c}:Fixes for AMD 64 platform as

	suggested by Jeremy C. Reed.			

	
 libtiff/tif_win32.c: Fixed problem with _TIFFrealloc() when

	the NULL pointer passed. Patch supplied by Larry Grill.

<font size="+3">C</font>HANGES IN THE TOOLS:

	
 tiffset: tiffset now can set any libtiff supported tags. Tags

	can be supplied by the mnemonic name or number.

	
 ycbcr.c: fixed main() declaration as per:

		http://bugzilla.remotesensing.org/show_bug.cgi?id=513.

	
 tiffsplit: Don't forget

	to copy Photometric Interpretation tag.

	
 tiffsplit: Fixed problem with

	unproperly written multibyte files. Now output files will be written

	using the same byte order flag as in the input image. See

		http://bugzilla.remotesensing.org/show_bug.cgi?id=574.

	
 tiffsplit: Copy JPEGTables

	tag contents for JPEG compressed images. Reported by Artem Mirolubov.

	
 tiffcp: Close output file

	on normal exit.

	
 tiffcp: Don't emit warnings

	when Orientation tag does not present in the input image.

	
 tiffcp: Properly set

	Photometric Interpretation in case of JPEG compression of grayscale

	images.

	
 tiffcp: Fixed problem with wrong

	interpretation of the InkNames tag as per bug

		http://bugzilla.remotesensing.org/show_bug.cgi?id=466.

	Memory leak fixed.

	
 tiffcp: Fixed problem with

	wrong Photometric setting for non-RGB images.

<font size="+3">C</font>HANGES IN THE CONTRIB AREA:

	
 Outdated stuff removed.

	
 Almost all programs are sinchronized with the current libtiff

	and should compile without problems.

<font size="+3">C</font>HANGES IN THE LZW COMPRESSION

KIT:

 No changes.

 TIFF home page.

Last updated $Date: 2006/03/18 17:12:47 $.