305 lines
11 KiB
HTML
305 lines
11 KiB
HTML
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<HTML>
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<HEAD>
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<TITLE>
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Changes in TIFF v3.9.0beta
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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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<B><FONT SIZE=+3>T</FONT>IFF <FONT SIZE=+2>C</FONT>HANGE <FONT SIZE=+2>I</FONT>NFORMATION</B>
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<BASEFONT SIZE=3>
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<UL>
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<HR SIZE=4 WIDTH=65% ALIGN=left>
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<B>Current Version</B>: v3.9.0beta<BR>
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<B>Previous Version</B>: <A HREF=v3.8.2.html>v3.8.2</a><BR>
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<B>Master FTP Site</B>: <A HREF="ftp://ftp.remotesensing.org/pub/libtiff">
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ftp.remotesensing.org</a>, directory pub/libtiff</A><BR>
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<B>Master HTTP Site</B>: <A HREF="http://www.remotesensing.org/libtiff">
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http://www.remotesensing.org/libtiff</a>
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<HR SIZE=4 WIDTH=65% ALIGN=left>
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</UL>
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<P>
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This document describes the changes made to the software between the
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<I>previous</I> and <I>current</I> 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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<UL>
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<LI><A HREF="#hightlights">Major Changes</A>
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<LI><A HREF="#configure">Changes in the software configuration</A>
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<LI><A HREF="#libtiff">Changes in libtiff</A>
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<LI><A HREF="#tools">Changes in the tools</A>
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<LI><A HREF="#contrib">Changes in the contrib area</A>
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</UL>
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<p>
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<P><HR WIDTH=65% ALIGN=left>
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<!--------------------------------------------------------------------------->
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<A NAME="highlights"><B><FONT SIZE=+3>M</FONT>AJOR CHANGES:</B></A>
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<UL>
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<li> New <b>tiffcrop</b> utility contributed by Richard Nolde.
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<b>tiffcrop</b> does the same as <b>tiffcp</b>, but also can crop,
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extract, rotate and mirror images.
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<li> tif_jbig.c: Added support for JBIG compression scheme
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(34661 code), contributed by Lee Howard.
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<li> Totally new implementation of OJPEG module from
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Joris Van Damme. No need to patch libjpeg anymore. Many OJPEG files
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should be supported now that was not supported previously.
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</UL>
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<P><HR WIDTH=65% ALIGN=left>
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<!--------------------------------------------------------------------------->
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<A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A>
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<UL>
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<li> tif_config.wince.h, tiffconf.wince.h, tif_wince.c: WinCE-specific
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compatibility stuff from Mateusz Loskot.
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<li> Rename config.h.vc and tif_config.h.vc to config.vc.h and
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tif_config.vc.h for easier identification by folks using an IDE.
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<li> configure, configure.ac: OJPEG support enabled by default (i.e.,
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whe the conformant JPEG support enabled).
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<li> README.vms, Makefile.am, configure.com, libtiff/{Makefile.am,
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tif_config.h-vms, tif_stream.cxx, tif_vms.c, tiffconf.h-vms}:
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Added support for OpenVMS by Alexey Chupahin.
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<li> nmake.opt: use /EHsc for VS2005 compatibility. Also define
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_CRT_SECURE_NO_DEPRECATE to avoid noise on VS2005.
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</UL>
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<P><HR WIDTH=65% ALIGN=left>
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<!--------------------------------------------------------------------------->
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<A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A>
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<UL>
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<li> tif_dirinfo.c (_TIFFFindFieldInfo): Don't attempt to
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bsearch() on a NULL fieldinfo list.
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(_TIFFFindFieldInfoByName): Don't attempt to lfind() on a NULL
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fieldinfo list.
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<li> tif_jpeg.c: Changed JPEGInitializeLibJPEG() so that it
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will convert from decompressor to compressor or compress to decompress
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if required by the force arguments. This works around a problem in
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where the JPEGFixupTestSubsampling() may cause a decompressor to
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be setup on a directory when later a compressor is required with the
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force flag set. Occurs with the addtiffo program for instance.
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<li> tif_dirwrite.c: Fixed swapping of byte arrays stored
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in-place in tag offsets as per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1363">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=1363</a>
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<li> tif_getimage.c: workaround for 'Fractional scanline' error
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reading OJPEG images with rowsperstrip that is not a multiple of
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vertical subsampling factor. This bug is mentioned in
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1390">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=1390</a> and
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<a href="http://www.asmail.be/msg0054766825.html">
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http://www.asmail.be/msg0054766825.html</a>
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<li> tif_dirread.c: Added special function to handle
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SubjectDistance EXIF tag as per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1362">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=1362</a>
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<li> tif_dirread.c, tif_read.c: Type of the byte counters
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changed from tsize_t to uint32 to be able to work with data arrays
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larger than 2GB. Fixes bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=890">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=89</a>
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Idea submitted by Matt Hancher.
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<li> tif_dir.c: Workaround for incorrect TIFFs with
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ExtraSamples == 999 produced by Corel Draw. As per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1490">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=1490</a>
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<li> tif_write.c: TIFFAppendToStrip() - clear sorted flag if
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we move a strip.
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1359">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=1359</a>
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<li> tif_fax3.c: Save the state of printdir codec dependent method.
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<li> tif_jpeg.c: Save the state of printdir codec dependent method
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as per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1273">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=1273</a>
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<li> tif_win32.c: Fixed problem with offset value manipulation
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as per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1322">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=1322</a>
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<li> tif_fax3.c, tif_next.c, tif_pixarlog.c: Fixed multiple
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vulnerabilities, as per Gentoo bug ():
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<a href="http://bugs.gentoo.org/show_bug.cgi?id=142383">
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http://bugs.gentoo.org/show_bug.cgi?id=142383</a>
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<li> tif_lzw.c, tif_zip.c: Fixed problems with mixing
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encoding and decoding on the same read-write TIFF handle. The LZW
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code can now maintain encode and decode state at the same time. The
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ZIP code will switch back and forth as needed.
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=757">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=757</a>
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<li> tif_msdos.c: Avoid handle leak for failed opens.
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c/o Thierry Pierron
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<li> tif_dirwrite.c: take care not to flush out buffer of strip/tile
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data in _TIFFWriteDirectory if TIFF_BEENWRITING not set. Relates
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to bug report by Peng Gao with black strip at bottom of images.
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<li> tif_dirwrite.c: make sure to use uint32 for wordcount in
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TIFFWriteNormanTag if writecount is VARIABLE2 for ASCII fields.
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It already seems to have been done for other field types. Needed
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for "tiffset" on files with geotiff ascii text.
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<li> tif_dirinfo.c: Added missed EXIF tag ColorSpace (40961).
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<li> tif_dirread.c: Move IFD fetching code in the separate
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function TIFFFetchDirectory() avoiding code duplication in
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TIFFReadDirectory() and TIFFReadCustomDirectory().
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<li>tif_readdir.c: Added case in EstimateStripByteCounts() for tiled
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files. Modified TIFFReadDirectory() to not invoke
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EstimateStripByteCounts() for case where entry 0 and 1 are unequal but
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one of them is zero.
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1204">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=1204</a>
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<li> tif_open.c, tif_dirread.c, tiffiop.h: Move IFD looping
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checking code in the separate function TIFFCheckDirOffset().
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<li> tif_aux.c: Added _TIFFCheckRealloc() function.
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<li> tif_fax3.c: Fixed problems in fax decoder as per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1194">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=1194</a>
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<li> tif_jbig.c: Added support for JBIG compression scheme
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(34661 code) contributed by Lee Howard. As per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=896">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=896</a>
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<li> tif_getimage.c: Added support for planarconfig separate
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non-subsampled YCbCr (i.e. separate YCbCr with subsampling [1,1]).
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<li> tif_getimage.c: Revision of all RGB(A) put routines:
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<ul>
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<li> Conversion of unassociated alpha to associated alpha
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now done with more performant LUT, and calculation more
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correct.
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<li> Conversion of 16bit data to 8bit data now done with
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more performant LUT, and calculation more correct
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<li> Bugfix of handling of 16bit RGB with unassociated alpha
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</ul>
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<li> tif_ojpeg.c: totally new implementation
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<li> tif_getimage.c: removed TIFFTAG_JPEGCOLORMODE handling
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of OJPEG images in favor of tif_getimage.c native handling of
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YCbCr and desubsampling.
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<li> tif_jpeg.c: JPEGVSetField() so that altering the photometric
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interpretation causes the "upsampled" flag to be recomputed. Fixes
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peculiar bug where photometric flag had to be set before jpegcolormode
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flag.
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</UL>
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<P><HR WIDTH=65% ALIGN=left>
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<!-------------------------------------------------------------------------->
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<A NAME="tools"><B><FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:</B></A>
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<UL>
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<li> tiff2ps.c: Added support 16-bit images as per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1566">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=1566</a>.
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Patch from William Bader.
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<li> tiff2pdf.c: Fix for TIFFTAG_JPEGTABLES tag fetching and
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significant upgrade of the whole utility as per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1560">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=1560</a>.
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Now we don't need tiffiop.h in tiff2pdf anymore and will open output
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PDF file using TIFFClientOpen() machinery as it is implemented
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by Leon Bottou.
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<li> tiffcrop.c: New tiffcrop utility contributed
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by Richard Nolde. As per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1383">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=1383</a>
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<li> tiff2pdf.c: Do not assume inches when the resolution units
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do not specified. As per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1366">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=1366</a>
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<li> tiffset.c: Properly handle tags with TIFF_VARIABLE writecount.
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As per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1350">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=1350</a>
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<li> tif2rgba.c: This utility does not work properly on big-endian
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architectures. It was fixed including the bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1149">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=1149</a>
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<li> tiff2pdf.c: Fix handling of -q values.
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=587">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=587</a>
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<li> tiffcmp.c: Fixed floating point comparison logic as per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1191">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=1191</a>
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<li> tiff2pdf.c: Fixed buffer overflow condition in
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t2p_write_pdf_string() as per bug
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<a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1196">
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http://bugzilla.remotesensing.org/show_bug.cgi?id=1196</a>
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</UL>
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<P><HR WIDTH=65% ALIGN=left>
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<!--------------------------------------------------------------------------->
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<A NAME="contrib"><B><FONT SIZE=+3>C</FONT>HANGES IN THE CONTRIB AREA:</B></A>
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<UL>
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<li> contrib/addtiffo/tif_overview.c: Fix problems with odd sized
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output blocks in TIFF_DownSample_Subsampled() (bug 1542).
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<li> contrib/dbs/xtiff/xtiff.c: Make xtiff utility compilable.
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Though it is still far from the state of being working and useful.
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</UL>
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Last updated $Date: 2007-07-13 14:05:16 $.
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</BODY>
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</HTML>
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