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<section id="changes-in-tiff-v3-8-0">
<h1>Changes in TIFF v3.8.0<a class="headerlink" href="#changes-in-tiff-v3-8-0" title="Permalink to this heading">¶</a></h1>
<table class="docutils align-default" id="id1">
<caption><span class="caption-text">References</span><a class="headerlink" href="#id1" title="Permalink to this table">¶</a></caption>
<tbody>
<tr class="row-odd"><td><p>Current Version</p></td>
<td><p>v3.8.0 (<a class="reference external" href="https://gitlab.com/libtiff/libtiff/-/tags/Release-v3-8-0">tag Release-v3-8-0</a>)</p></td>
</tr>
<tr class="row-even"><td><p>Previous Version</p></td>
<td><p><a class="reference internal" href="v3.7.4.html"><span class="doc">v3.7.4</span></a></p></td>
</tr>
<tr class="row-odd"><td><p>Master Download Site</p></td>
<td><p><a class="reference external" href="https://download.osgeo.org/libtiff/">https://download.osgeo.org/libtiff/</a></p></td>
</tr>
<tr class="row-even"><td><p>Master HTTP Site</p></td>
<td><p><a class="reference external" href="http://www.simplesystems.org/libtiff/">http://www.simplesystems.org/libtiff/</a></p></td>
</tr>
</tbody>
</table>
<p>This document describes the changes made to the software between the
<em>previous</em> and <em>current</em> 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:</p>
<section id="major-changes">
<h2>Major changes<a class="headerlink" href="#major-changes" title="Permalink to this heading">¶</a></h2>
<ul class="simple">
<li><p>Read-only support for custom directories (e.g. EXIF directory).</p></li>
<li><p>Preliminary support for MS MDI format.</p></li>
</ul>
</section>
<section id="software-configuration-changes">
<h2>Software configuration changes<a class="headerlink" href="#software-configuration-changes" title="Permalink to this heading">¶</a></h2>
<ul class="simple">
<li><p>Make the default strip size configurable via the
<code class="docutils literal notranslate"><span class="pre">--with-default-strip-size</span></code> and <code class="xref c c-macro docutils literal notranslate"><span class="pre">STRIP_SIZE_DEFAULT</span></code> options.</p></li>
</ul>
</section>
<section id="library-changes">
<h2>Library changes<a class="headerlink" href="#library-changes" title="Permalink to this heading">¶</a></h2>
<ul class="simple">
<li><p><code class="file docutils literal notranslate"><span class="pre">tiffio.h</span></code>: Added <code class="xref c c-macro docutils literal notranslate"><span class="pre">VC_EXTRALEAN</span></code> definition before including
<code class="file docutils literal notranslate"><span class="pre">windows.h</span></code>, to reduce the compile time.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_jpeg.c</span></code>: Improve compilation under MinGW.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_aux.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">tif_dir.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">tif_dir.h</span></code>, <code class="file docutils literal notranslate"><span class="pre">tif_dirwrite.c</span></code>,
<code class="file docutils literal notranslate"><span class="pre">tif_print.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">tif_getimage.c</span></code>: Make <code class="docutils literal notranslate"><span class="pre">InkSet</span></code>, <code class="docutils literal notranslate"><span class="pre">NumberOfInks</span></code>, <code class="docutils literal notranslate"><span class="pre">DotRange</span></code> and
<code class="docutils literal notranslate"><span class="pre">StoNits</span></code> tags custom.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_aux.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">tif_dir.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">tif_dir.h</span></code>, <code class="file docutils literal notranslate"><span class="pre">tif_print.c</span></code>: Make
<code class="docutils literal notranslate"><span class="pre">WhitePoint</span></code> tag custom.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tiffio.h</span></code>: fixed typo that potentially resulted in
redefininition of <code class="xref c c-macro docutils literal notranslate"><span class="pre">USE_WIN32_FILEIO</span></code></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_dir.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">tif_dir.h</span></code>, <code class="file docutils literal notranslate"><span class="pre">tif_print.c</span></code>: Make <code class="docutils literal notranslate"><span class="pre">RichTIFFIPTC</span></code>,
<code class="docutils literal notranslate"><span class="pre">Photoshop</span></code> and <code class="docutils literal notranslate"><span class="pre">ICCProfile</span></code> tags custom.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">libtiff/*</span></code>, <code class="file docutils literal notranslate"><span class="pre">contrib/*</span></code>: Added ‘dual-mode’ error handling, enabling
newer code to get context indicator in error handler and still
remain compatible with older code: Done <a class="reference internal" href="../functions/TIFFError.html#c.TIFFError" title="TIFFError"><code class="xref c c-func docutils literal notranslate"><span class="pre">TIFFError()</span></code></a> calls everywhere
except in tools.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tiffinfo.c</span></code>: Print <code class="docutils literal notranslate"><span class="pre">EXIF</span></code> directory contents if exist.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_dirinfo.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">tif_dirread.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">tif_dir.h</span></code>, <code class="file docutils literal notranslate"><span class="pre">tif_dir.c</span></code>:
Custom directory read-only support.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_aux.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">tif_dirinfo.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">tif_dirread.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">tif_dir.h</span></code>,
<code class="file docutils literal notranslate"><span class="pre">tif_dir.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">tif_print.c</span></code>: Make <code class="docutils literal notranslate"><span class="pre">YCbCrCoefficients</span></code> and <code class="docutils literal notranslate"><span class="pre">ReferenceBlackWhite</span></code>
tags custom.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_dirread.c</span></code>: One more workaround for broken <code class="docutils literal notranslate"><span class="pre">StripByteCounts</span></code>
tag. Handle the case when <code class="docutils literal notranslate"><span class="pre">StripByteCounts</span></code> array filled with
completely wrong values.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_dirinfo.c</span></code>: Release file descriptor in case of failure
in the <a class="reference internal" href="../functions/TIFFOpen.html#c.TIFFOpenW" title="TIFFOpenW"><code class="xref c c-func docutils literal notranslate"><span class="pre">TIFFOpenW()</span></code></a> function as per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1003">Remote Sensing bugzilla #1003 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_dirinfo.c</span></code>: Correctly use <code class="xref c c-func docutils literal notranslate"><span class="pre">bsearch()</span></code> and <code class="xref c c-func docutils literal notranslate"><span class="pre">lfind()</span></code>
functions as per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1008">Remote Sensing bugzilla #1008 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_open.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">tiff.h</span></code>, <code class="file docutils literal notranslate"><span class="pre">tiffdump.c</span></code>: Incorporate preliminary support
for MS MDI format.
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=1002">Remote Sensing bugzilla #1002 [no longer available]</a></p></li>
<li><p>libtiff.def, <code class="file docutils literal notranslate"><span class="pre">tiffiop.h</span></code>, <code class="file docutils literal notranslate"><span class="pre">tiffio.h</span></code>: Made <a class="reference internal" href="../functions/TIFFCreateDirectory.html#c.TIFFFreeDirectory" title="TIFFFreeDirectory"><code class="xref c c-func docutils literal notranslate"><span class="pre">TIFFFreeDirectory()</span></code></a>
public.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">/tif_dirinfo.c</span></code>: Make <code class="docutils literal notranslate"><span class="pre">XResolution</span></code>, <code class="docutils literal notranslate"><span class="pre">YResolution</span></code> and
<code class="docutils literal notranslate"><span class="pre">ResolutionUnit</span></code> tags modifiable during write process. As per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=977">Remote Sensing bugzilla #977 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">if_dirread.c</span></code>: Don’t try and split single strips into “0” strips
in <code class="xref c c-func docutils literal notranslate"><span class="pre">ChopUpSingleUncompressedStrip()</span></code>. This happens in some degenerate
cases (like 1×1 files with <code class="docutils literal notranslate"><span class="pre">stripbytecounts==0</span></code> (<code class="file docutils literal notranslate"><span class="pre">gtsmall.jp2</span></code> embed tiff)</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_fax3.c</span></code>: changed ‘<cite>at scanline …</cite>’ style warning/errors
with incorrect use of tif_row, to ‘<cite>at line … of
strip/tile …</cite>’ style.</p></li>
</ul>
</section>
<section id="tools-changes">
<h2>Tools changes<a class="headerlink" href="#tools-changes" title="Permalink to this heading">¶</a></h2>
<ul class="simple">
<li><p><code class="file docutils literal notranslate"><span class="pre">tiffcp.c</span></code>: Added many error reporting messages; fixed integer
overflow as per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=789">Remote Sensing bugzilla #789 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tiffcp.c</span></code>: Return non-zero status when reading fails.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">fax2tiff.c</span></code>: Properly calculate sizes of temporary arrays
as per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=943">Remote Sensing bugzilla #943 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">fax2tiff.c</span></code>: Added option <cite>-r</cite> to set RowsPerStrip parameter
as per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=944">Remote Sensing bugzilla #944 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tiffdump.c</span></code>: Fixed <code class="xref c c-var docutils literal notranslate"><span class="pre">typeshift</span></code> and <code class="xref c c-var docutils literal notranslate"><span class="pre">typemask</span></code> arrays initialization
problem as per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=946">Remote Sensing bugzilla #946 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">bmp2tiff.c</span></code>: Fixed possible integer overflow error as per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=965">Remote Sensing bugzilla #965 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tiffsplit.c</span></code>: Copy fax related fields over split parts
as per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=983">Remote Sensing bugzilla #983 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tiffdump.c</span></code>: Fixed crash when reading malformed tags.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tiff2pdf.c</span></code>: Added missed <code class="docutils literal notranslate"><span class="pre">break</span></code> statement as per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=932">Remote Sensing bugzilla #932 [no longer available]</a></p></li>
</ul>
</section>
<section id="contributed-software-changes">
<h2>Contributed software changes<a class="headerlink" href="#contributed-software-changes" title="Permalink to this heading">¶</a></h2>
<ul class="simple">
<li><p><code class="file docutils literal notranslate"><span class="pre">contrib/addtiffo/*</span></code>: Major upgrade by Joris to support subsampled
YCbCr images in jpeg compressed TIFF files.</p></li>
</ul>
</section>
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<h3><a href="../index.html">Table of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">Changes in TIFF v3.8.0</a><ul>
<li><a class="reference internal" href="#major-changes">Major changes</a></li>
<li><a class="reference internal" href="#software-configuration-changes">Software configuration changes</a></li>
<li><a class="reference internal" href="#library-changes">Library changes</a></li>
<li><a class="reference internal" href="#tools-changes">Tools changes</a></li>
<li><a class="reference internal" href="#contributed-software-changes">Contributed software changes</a></li>
</ul>
</li>
</ul>
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