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Changes in TIFF v3.5.6

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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: v3.5.6beta

Previous Version: v3.5.5

Master FTP Site: ftp.onshore.com, 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:

Changes in the software configuration

Changes in libtiff

Changes in the tools

Changes in contrib

Changes in the LZW compression kit

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

	
 Added GNULDdso target and switched linux and freebsd to use it. 

	
 tools/Makefile.in: Modified to install properly on SGI.

	
 configure: Fixed DSO test for Linux as per patch from

	  Jan Van Buggenhout <chipzz@ace.ulyssis.student.kuleuven.ac.be>.</chipzz@ace.ulyssis.student.kuleuven.ac.be>

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

	
 tif_dir.c: Clear TIFF_ISTILED flag in TIFFDefaultDirectory

	as per http://bugzilla.remotesensing.org/show_bug.cgi?id=18

	from vandrove@vc.cvut.cz.

	
 Modified tif_packbits.c decoding to avoid overrunning the

	output buffer, and to issue a warning if data needs to be

	discarded.  See http://bugzilla.remotesensing.org/show_bug.cgi?id=18

	
 Modified TIFFClientOpen() to emit an error on an attempt to

	open a comperessed file for update (O_RDWR/r+) access.  This is

	because the compressor/decompressor code gets very confused when

	the mode is O_RDWR, assuming this means writing only.  See

	bug http://bugzilla.remotesensing.org/show_bug.cgi?id=13

	
 Applied patch for 0x0000 sequences in tif_fax3.h's definition

	of EXPAND1D() as per bug 11 (from Roman). 

	
 Fixed tiffcomp.h to avoid win32 stuff if unix #defined, to improve

	cygwin compatibility.

	
 Applied patch from Roman Shpount to tif_fax3.c.  This seems to

	be a proper fix to the buffer sizing problem.  See 

	http://bugzilla.remotesensing.org/show_bug.cgi?id=11

	
 Fixed tif_getimage.c to fix overrun bug with YCbCr images without

	downsampling.  http://bugzilla.remotesensing.org/show_bug.cgi?id=10

	Thanks to Nick Lamb <njl98r@ecs.soton.ac.uk> for reporting the</njl98r@ecs.soton.ac.uk>

	bug and proving the patch.

	
 Fixed tif_jpeg.c so avoid destroying the decompressor before

	we are done access data thanks to bug report from:

	Michael Eckstein <eckstein@gepro.cz>.</eckstein@gepro.cz>

	
 tif_open.c: Don't set MMAP for O_RDWR files.

	
 tif_open.c: Set STRIPCHOP_DEFAULT for O_RDWR as well as O_RDONLY

	so that files opened for update can be strip chopped too.

	
 tif_read.c: fixed up bug with files missing rowsperstrip and

	the strips per separation fix done a few weeks ago.

	
 Tentatively added support for SAMPLEFORMAT_COMPLEXIEEEFP, and

	SAMPLEFORMAT_COMPLEXINT.

	
 index.html, bugs.html: added bugzilla info. 

	
 tif_read.c: fix subtle bug with determining the number of

	rows for strips that are the last strip in a separation but

	not the last strip of all in TIFFReadEncodedStrip().  

	
 Applied 16/32 bit fix to tif_fax3.c.  Fix supplied by

	Peter Skarpetis <peters@serendipity-software.com.au></peters@serendipity-software.com.au>

	
 Modified tiffio.h logic with regard to including windows.h.  It

	won't include it when building with __CYGWIN__.

	
 README: update to mention www.libtiff.org, don't list Sam's old

	email address.

	
 libtiff/tif_dirread.c: Don't use estimate strip byte count for

	one tile/strip images with an offset, and byte count of zero. These

	could be "unpopulated" images. 

	
 tif_win32.c:  Applied patch to fix overreads and ovverwrites

	  caught by BoundsChecker.  From Arvan Pritchard 

	  <arvan.pritchard@infomatix.co.uk>  (untested). </arvan.pritchard@infomatix.co.uk>

        
 tif_getimage.c:  Applied patch to silence VC6 warnings.  From 

	  Arvan Pritchard <arvan.pritchard@informatix.co.uk></arvan.pritchard@informatix.co.uk>

	
 tif_lzw.c:  Applied patch to silence VC6 warnings.  From 

	  Arvan Pritchard <arvan.pritchard@informatix.co.uk></arvan.pritchard@informatix.co.uk>

	
 libtiff/tif_apple.c: Applied "Carbon" support patches supplied by

	Leonard Rosenthol <leonardr@lazerware.com>.  May interfere</leonardr@lazerware.com>

	with correct building on older systems.  If so, please let me know.

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

	
 tools/rgb2ycbcr.c: fixed output strip size to account for vertical 

	roundup if rows_per_strip not a multiple of vertical sample size.

	
 tools/tiffsplit.c: Copy TIFFTAG_SAMPLEFORMAT.

	
  Modified tiff2bw to ensure portions add to 100%, and that

	 white is properly recovered.  See bug

	 http://bugzilla.remotesensing.org/show_bug.cgi?id=15 Patch

	 c/o Stanislav Brabec <utx@penguin.cz></utx@penguin.cz>

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

	
 contrib/addtiffo: Added "averaging" resampling option.

	
 Added contrib/stream (stream io) code submitted by Avi Bleiweiss.

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

    
 updated tif_dir.c to reflect changes to no-lzw tif_dir.c

 TIFF home page.

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