src/tiff/html/v3.9.0beta.html

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   4         Changes in TIFF v3.9.0beta
   5 </TITLE>
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  11
  12 <BASEFONT SIZE=4>
  13 <B><FONT SIZE=+3>T</FONT>IFF <FONT SIZE=+2>C</FONT>HANGE <FONT SIZE=+2>I</FONT>NFORMATION</B>
  14 <BASEFONT SIZE=3>
  15
  16 <UL>
  17 <HR SIZE=4 WIDTH=65% ALIGN=left>
  18 <B>Current Version</B>: v3.9.0beta<BR>
  19 <B>Previous Version</B>: <A HREF=v3.8.2.html>v3.8.2</a><BR>
  20 <B>Master FTP Site</B>: <A HREF="ftp://ftp.remotesensing.org/pub/libtiff">
  21 ftp.remotesensing.org</a>, directory pub/libtiff</A><BR>
  22 <B>Master HTTP Site</B>: <A HREF="http://www.remotesensing.org/libtiff">
  23 http://www.remotesensing.org/libtiff</a>
  24 <HR SIZE=4 WIDTH=65% ALIGN=left>
  25 </UL>
  26
  27 <P>
  28 This document describes the changes made to the software between the
  29 <I>previous</I> and <I>current</I> versions (see above).
  30 If you don't find something listed here, then it was not done in this
  31 timeframe, or it was not considered important enough to be mentioned.
  32 The following information is located here:
  33 <UL>
  34 <LI><A HREF="#hightlights">Major Changes</A>
  35 <LI><A HREF="#configure">Changes in the software configuration</A>
  36 <LI><A HREF="#libtiff">Changes in libtiff</A>
  37 <LI><A HREF="#tools">Changes in the tools</A>
  38 <LI><A HREF="#contrib">Changes in the contrib area</A>
  39 </UL>
  40 <p>
  41 <P><HR WIDTH=65% ALIGN=left>
  42
  43 <!--------------------------------------------------------------------------->
  44
  45 <A NAME="highlights"><B><FONT SIZE=+3>M</FONT>AJOR CHANGES:</B></A>
  46
  47 <UL>
  48         <li> New <b>tiffcrop</b> utility contributed by Richard Nolde.
  49         <b>tiffcrop</b> does the same as <b>tiffcp</b>, but also can crop,
  50         extract, rotate and mirror images.
  51
  52         <li> tif_jbig.c:  Added support for JBIG compression scheme
  53         (34661 code), contributed by Lee Howard.
  54
  55         <li> Totally new implementation of OJPEG module from
  56         Joris Van Damme. No need to patch libjpeg anymore. Many OJPEG files
  57         should be supported now that was not supported previously.
  58
  59 </UL>
  60
  61
  62 <P><HR WIDTH=65% ALIGN=left>
  63 <!--------------------------------------------------------------------------->
  64
  65 <A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A>
  66
  67 <UL>
  68
  69         <li> tif_config.wince.h, tiffconf.wince.h, tif_wince.c: WinCE-specific
  70         compatibility stuff from Mateusz Loskot.
  71
  72         <li> Rename config.h.vc and tif_config.h.vc to config.vc.h and
  73         tif_config.vc.h for easier identification by folks using an IDE.
  74
  75         <li> configure, configure.ac: OJPEG support enabled by default (i.e.,
  76         whe the conformant JPEG support enabled).
  77
  78         <li> README.vms, Makefile.am, configure.com, libtiff/{Makefile.am,
  79         tif_config.h-vms, tif_stream.cxx, tif_vms.c, tiffconf.h-vms}:
  80         Added support for OpenVMS by Alexey Chupahin.
  81
  82         <li> nmake.opt: use /EHsc for VS2005 compatibility.  Also define
  83         _CRT_SECURE_NO_DEPRECATE to avoid noise on VS2005.
  84
  85 </UL>
  86
  87 <P><HR WIDTH=65% ALIGN=left>
  88
  89 <!--------------------------------------------------------------------------->
  90
  91 <A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A>
  92
  93 <UL>
  94         <li> tif_dirinfo.c (_TIFFFindFieldInfo): Don't attempt to
  95         bsearch() on a NULL fieldinfo list.
  96         (_TIFFFindFieldInfoByName): Don't attempt to lfind() on a NULL
  97         fieldinfo list.
  98
  99         <li> tif_jpeg.c: Changed JPEGInitializeLibJPEG() so that it
 100         will convert from decompressor to compressor or compress to decompress
 101         if required by the force arguments.  This works around a problem in
 102         where the JPEGFixupTestSubsampling() may cause a decompressor to
 103         be setup on a directory when later a compressor is required with the
 104         force flag set.  Occurs with the addtiffo program for instance.
 105
 106         <li> tif_dirwrite.c: Fixed swapping of byte arrays stored
 107         in-place in tag offsets as per bug
 108         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1363">
 109         http://bugzilla.remotesensing.org/show_bug.cgi?id=1363</a>
 110
 111         <li> tif_getimage.c: workaround for 'Fractional scanline' error
 112         reading OJPEG images with rowsperstrip that is not a multiple of
 113         vertical subsampling factor. This bug is mentioned in
 114         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1390">
 115         http://bugzilla.remotesensing.org/show_bug.cgi?id=1390</a> and
 116         <a href="http://www.asmail.be/msg0054766825.html">
 117         http://www.asmail.be/msg0054766825.html</a>
 118
 119         <li> tif_dirread.c: Added special function to handle
 120         SubjectDistance EXIF tag as per bug
 121         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1362">
 122         http://bugzilla.remotesensing.org/show_bug.cgi?id=1362</a>
 123
 124         <li> tif_dirread.c, tif_read.c: Type of the byte counters
 125         changed from tsize_t to uint32 to be able to work with data arrays
 126         larger than 2GB. Fixes bug
 127         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=890">
 128         http://bugzilla.remotesensing.org/show_bug.cgi?id=89</a>
 129         Idea submitted by Matt Hancher.
 130
 131         <li> tif_dir.c: Workaround for incorrect TIFFs with
 132         ExtraSamples == 999 produced by Corel Draw. As per bug
 133         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1490">
 134         http://bugzilla.remotesensing.org/show_bug.cgi?id=1490</a>
 135
 136         <li> tif_write.c: TIFFAppendToStrip() - clear sorted flag if
 137         we move a strip.
 138         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1359">
 139                 http://bugzilla.remotesensing.org/show_bug.cgi?id=1359</a>
 140
 141         <li> tif_fax3.c: Save the state of printdir codec dependent method.
 142
 143         <li> tif_jpeg.c: Save the state of printdir codec dependent method
 144         as per bug
 145         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1273">
 146                 http://bugzilla.remotesensing.org/show_bug.cgi?id=1273</a>
 147
 148         <li> tif_win32.c: Fixed problem with offset value manipulation
 149         as per bug
 150         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1322">
 151                 http://bugzilla.remotesensing.org/show_bug.cgi?id=1322</a>
 152
 153         <li> tif_fax3.c, tif_next.c, tif_pixarlog.c: Fixed multiple
 154         vulnerabilities, as per Gentoo bug ():
 155         <a href="http://bugs.gentoo.org/show_bug.cgi?id=142383">
 156         http://bugs.gentoo.org/show_bug.cgi?id=142383</a>
 157
 158         <li> tif_lzw.c, tif_zip.c: Fixed problems with mixing
 159         encoding and decoding on the same read-write TIFF handle.  The LZW
 160         code can now maintain encode and decode state at the same time. The
 161         ZIP code will switch back and forth as needed.
 162         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=757">
 163         http://bugzilla.remotesensing.org/show_bug.cgi?id=757</a>
 164
 165         <li> tif_msdos.c: Avoid handle leak for failed opens.
 166         c/o Thierry Pierron
 167
 168         <li> tif_dirwrite.c: take care not to flush out buffer of strip/tile
 169         data in _TIFFWriteDirectory if TIFF_BEENWRITING not set.  Relates
 170         to bug report by Peng Gao with black strip at bottom of images.
 171
 172         <li> tif_dirwrite.c: make sure to use uint32 for wordcount in
 173         TIFFWriteNormanTag if writecount is VARIABLE2 for ASCII fields.
 174         It already seems to have been done for other field types.  Needed
 175         for "tiffset" on files with geotiff ascii text.
 176
 177         <li> tif_dirinfo.c: Added missed EXIF tag ColorSpace (40961).
 178
 179         <li> tif_dirread.c: Move IFD fetching code in the separate
 180         function TIFFFetchDirectory() avoiding code duplication in
 181         TIFFReadDirectory() and TIFFReadCustomDirectory().
 182
 183         <li>tif_readdir.c: Added case in EstimateStripByteCounts() for tiled
 184         files.  Modified TIFFReadDirectory() to not invoke
 185         EstimateStripByteCounts() for case where entry 0 and 1 are unequal but
 186         one of them is zero.
 187         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1204">
 188         http://bugzilla.remotesensing.org/show_bug.cgi?id=1204</a>
 189
 190         <li> tif_open.c, tif_dirread.c, tiffiop.h: Move IFD looping
 191         checking code in the separate function TIFFCheckDirOffset().
 192
 193         <li> tif_aux.c: Added _TIFFCheckRealloc() function.
 194
 195         <li> tif_fax3.c: Fixed problems in fax decoder as per bug
 196         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1194">
 197         http://bugzilla.remotesensing.org/show_bug.cgi?id=1194</a>
 198
 199         <li> tif_jbig.c:  Added support for JBIG compression scheme
 200         (34661 code) contributed by Lee Howard. As per bug
 201         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=896">
 202                 http://bugzilla.remotesensing.org/show_bug.cgi?id=896</a>
 203
 204         <li> tif_getimage.c: Added support for planarconfig separate
 205         non-subsampled YCbCr (i.e. separate YCbCr with subsampling [1,1]).
 206
 207         <li> tif_getimage.c: Revision of all RGB(A) put routines:
 208         <ul>
 209                 <li> Conversion of unassociated alpha to associated alpha
 210                 now done with more performant LUT, and calculation more
 211                 correct.
 212                 <li> Conversion of 16bit data to 8bit data now done with
 213                 more performant LUT, and calculation more correct
 214                 <li> Bugfix of handling of 16bit RGB with unassociated alpha
 215         </ul>
 216
 217         <li> tif_ojpeg.c: totally new implementation
 218
 219         <li> tif_getimage.c: removed TIFFTAG_JPEGCOLORMODE handling
 220         of OJPEG images in favor of tif_getimage.c native handling of
 221         YCbCr and desubsampling.
 222
 223         <li> tif_jpeg.c: JPEGVSetField() so that altering the photometric
 224         interpretation causes the "upsampled" flag to be recomputed.  Fixes
 225         peculiar bug where photometric flag had to be set before jpegcolormode
 226         flag.
 227
 228 </UL>
 229
 230 <P><HR WIDTH=65% ALIGN=left>
 231
 232 <!-------------------------------------------------------------------------->
 233
 234 <A NAME="tools"><B><FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:</B></A>
 235
 236 <UL>
 237         <li> tiff2ps.c:  Added support 16-bit images as per bug
 238         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1566">
 239         http://bugzilla.remotesensing.org/show_bug.cgi?id=1566</a>.
 240         Patch from William Bader.
 241
 242         <li> tiff2pdf.c: Fix for TIFFTAG_JPEGTABLES tag fetching and
 243         significant upgrade of the whole utility as per bug
 244         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1560">
 245         http://bugzilla.remotesensing.org/show_bug.cgi?id=1560</a>.
 246         Now we don't need tiffiop.h in tiff2pdf anymore and will open output
 247         PDF file using TIFFClientOpen() machinery as it is implemented
 248         by Leon Bottou.
 249
 250         <li> tiffcrop.c:  New tiffcrop utility contributed
 251         by Richard Nolde. As per bug
 252         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1383">
 253         http://bugzilla.remotesensing.org/show_bug.cgi?id=1383</a>
 254
 255         <li> tiff2pdf.c: Do not assume inches when the resolution units
 256         do not specified. As per bug
 257         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1366">
 258         http://bugzilla.remotesensing.org/show_bug.cgi?id=1366</a>
 259
 260         <li> tiffset.c: Properly handle tags with TIFF_VARIABLE writecount.
 261         As per bug
 262         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1350">
 263                 http://bugzilla.remotesensing.org/show_bug.cgi?id=1350</a>
 264
 265         <li> tif2rgba.c: This utility does not work properly on big-endian
 266         architectures. It was fixed including the bug
 267         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1149">
 268         http://bugzilla.remotesensing.org/show_bug.cgi?id=1149</a>
 269
 270         <li> tiff2pdf.c: Fix handling of -q values.
 271         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=587">
 272         http://bugzilla.remotesensing.org/show_bug.cgi?id=587</a>
 273
 274         <li> tiffcmp.c: Fixed floating point comparison logic as per bug
 275         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1191">
 276         http://bugzilla.remotesensing.org/show_bug.cgi?id=1191</a>
 277
 278         <li> tiff2pdf.c: Fixed buffer overflow condition in
 279         t2p_write_pdf_string() as per bug
 280         <a href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1196">
 281         http://bugzilla.remotesensing.org/show_bug.cgi?id=1196</a>
 282
 283 </UL>
 284
 285 <P><HR WIDTH=65% ALIGN=left>
 286
 287 <!--------------------------------------------------------------------------->
 288
 289 <A NAME="contrib"><B><FONT SIZE=+3>C</FONT>HANGES IN THE CONTRIB AREA:</B></A>
 290
 291 <UL>
 292
 293         <li> contrib/addtiffo/tif_overview.c: Fix problems with odd sized
 294         output blocks in TIFF_DownSample_Subsampled() (bug 1542).
 295
 296         <li> contrib/dbs/xtiff/xtiff.c: Make xtiff utility compilable.
 297         Though it is still far from the state of being working and useful.
 298
 299 </UL>
 300
 301 Last updated $Date: 2009-08-20 22:57:39 $.
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