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	Changes in TIFF v3.7.3

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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: v3.7.3

Previous Version: v3.7.2

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

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

	
 Replace runtime endianess check with the compile time one.

	
 Added support for the new predictor type (floating point

	predictor), defined at the TIFF Technical Note 3.

	
 Added Support for custom tags, passed by value.

	Added support for all DNG tags.

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

	
 Do not use empty -R option when linking with --enable-rpath.

	
 Added workaround for OpenBSD/MirOS soname problem as per bug

		http://bugzilla.remotesensing.org/show_bug.cgi?id=838

	
 Fixed parallel compilation of the libtiff and

	libtiffxx libraries as per bug

		http://bugzilla.remotesensing.org/show_bug.cgi?id=826

	
 configure.ac, libtiff/Makefile.am: Use libtool machinery to pass

	rpath option.

	
 make.opt: Build with Win32 CRT library by default.

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

	
 tiffiop.h, tif_open.c: Added open option 'h' to avoid reading

	the first IFD when needed. As per bug

		http://bugzilla.remotesensing.org/show_bug.cgi?id=875

	
 tiff.h: Use correct int size on Sparc 64bit/Sun compiler

	platform. As per bug

		http://bugzilla.remotesensing.org/show_bug.cgi?id=855

	
 tif_dirinfo.c: Added support for ClipPath, XClipPathUnits

	and YClipPathUnits tags.

	
 tif_dirinfo.c, tif_dir.h, tif_dir.c, tif_print.c: Make

	DocumentName, Artist, HostComputer, ImageDescription, Make, Model,

	Copyright, DateTime, PageName, TextureFormat, TextureWrapModes and

	TargetPrinter tags custom.

	
 tif_jpeg.c: Cleanup the codec state depending on TIFF_CODERSETUP

	flag (to fix memory leaks).

	
 tif_dirwrite.c: Use tdir_count when calling

	TIFFCvtNativeToIEEEDouble() in the TIFFWriteDoubleArray() function as

	per bug 

	http://bugzilla.remotesensing.org/show_bug.cgi?id=845

	
 tif_dirinfo.c, tif_print.c: TIFFFetchByteArray() returns

	uint16 array when fetching the BYTE and SBYTE fields, so we should

	consider result as pointer to uint16 array and not as array of chars.

	As per bug

		http://bugzilla.remotesensing.org/show_bug.cgi?id=831

	
 tif_dir.c: More efficient custom tags retrieval as per bug

		http://bugzilla.remotesensing.org/show_bug.cgi?id=830

	
 tif_win32.c: Use FILE_SHARE_READ | FILE_SHARE_WRITE share

	mode in CreateFile() call as per bug

	http://bugzilla.remotesensing.org/show_bug.cgi?id=829

	
 tif_jpeg.c: Substantial fix for addtiffo problems with

	JPEG encoded TIFF files.  Pre-allocate lots of space for jpegtables

	in directory.

	
 tif_dirread.c: Changed the code that computes 

	stripbytecount[0] if it appears bogus to ignore if stripoffset[0] is

	zero. This is a common case with GDAL indicating a "null" tile/strip.

	
 tif_jpeg.c: added LIB_JPEG_MK1 support in JPEGDecodeRaw().

	
 tif_dirread.c: Ensure that broken files with too many

	values in PerSampleShorts, TIFFFetchPerSampleLongs and

	TIFFFetchPerSampleAnys work ok instead of crashing.

	http://bugzilla.remotesensing.org/show_bug.cgi?id=843

	
 tif_predict.h, tif_predict.c: Added ability to decode and encode

	floating point predictor, as per TIFF Technical Note 3.

	See http://chriscox.org/TIFF_TN3_Draft2.pdf for details.

	
 tiffio.h, tiffiop.h, tif_dir.c, tif_read.c, tif_swab.c:

	Added _TIFFSwab24BitData() and TIFFSwabArrayOfLong() functions used to

	swap 24-bit floating point values.

	
 tiff.h: Added predictor constants.

	
 tiffiop.h, tif_dir.c: Use uint32 type for appropriate values

	in _TIFFVSetField() function. Inspired by the bug

		http://bugzilla.remotesensing.org/show_bug.cgi?id=816

	
 tif_open.c: Do not read header in case the output file should

	be truncated (Ron).

	
 tif_dirinfo.c, tif_config.h.vc: Use lfind() instead of bsearch()

	in _TIFFFindFieldInfoByName() function (Ron).

	
 tif_dir.c, tif_print.c: Properly handle all data types in custom

	tags.

	
 dirinfo.c: Added DNG tags.

	
 tiff.h: Added missed DNG tag (LensInfo); added DNG 1.1.0.0 tags.

	
 tif_dir.c, tif_print.c: Added Support for custom tags, passed

	by value.

	
 tiff.h, tif_dirinfo.c, tiffiop.h: Added EXIF related tags.

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

	
 tiff2pdf.c: Print two characters per loop in the

	t2p_write_pdf_trailer(). As per bug

		http://bugzilla.remotesensing.org/show_bug.cgi?id=594

	
 tiffgt.c: Use MacOS X OpenGL framework when appropriate. As

	per bug 

		http://bugzilla.remotesensing.org/show_bug.cgi?id=844

	
 ppm2tiff.c: Fixed format string when read PPM file header with

	the fscanf() function. As per bug

		http://bugzilla.remotesensing.org/show_bug.cgi?id=861

	
 tiffsplit.c: Check for JPEGTables tag presence before copying.

	
 tiff2pdfr.c: Calculate the tile width properly; added new

	option '-b' to use interpolation in output PDF files (Bruno Ledoux).

	
 tiffdither.c: Copy the PhotometricInterpretation tag from the

	input file.

	
 tif2pdf.c: Fixed problem with alpha channel handling as per

	bug 

		http://bugzilla.remotesensing.org/show_bug.cgi?id=794.

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

	
 addtiffo/{tif_overview.c, tif_ovrcache.c, tif_ovrcache.h}:

	Make overviews working for contiguous images. 

Last updated $Date: 2006/01/04 22:04:46 $.