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<section id="changes-in-tiff-v3-7-1">
<h1>Changes in TIFF v3.7.1<a class="headerlink" href="#changes-in-tiff-v3-7-1" 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>v3.7.1 (<a class="reference external" href="https://gitlab.com/libtiff/libtiff/-/tags/Release-v3-7-1">tag Release-v3-7-1</a>)</p></td>
</tr>
<tr class="row-even"><td><p>Previous Version</p></td>
<td><p><a class="reference internal" href="v3.7.0.html"><span class="doc">v3.7.0</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>This is mostly bugfix release. Most important fix is the one
related to wrong custom tag read/write code.</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><code class="file docutils literal notranslate"><span class="pre">autogen.sh</span></code>: <strong class="program">aclocal</strong> and <strong class="program">autoheader</strong>
should be executed after <strong class="program">libtoolize</strong>.
Also add <code class="docutils literal notranslate"><span class="pre">-I</span> <span class="pre">.</span></code> to aclocal invocation to check
current directory for macros.</p></li>
<li><p>nmake.opt: Link with the <code class="file docutils literal notranslate"><span class="pre">user32.lib</span></code> in windowed mode. As per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=697">Remote Sensing bugzilla #697 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">nmake.opt</span></code>, <code class="file docutils literal notranslate"><span class="pre">makefile.vc</span></code>: make it easier to rename the libtiff DLL.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">configure</span></code>, <code class="file docutils literal notranslate"><span class="pre">configure.ac</span></code>: Added <code class="docutils literal notranslate"><span class="pre">--enable-rpath</span></code> option to embed
linker paths into library binary.</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">tiff.h</span></code>: Revert back libtiff data type definitions as per
bug <a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=687">Remote Sensing bugzilla #687 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_dirread.c</span></code>: Do not forget about <code class="xref c c-macro docutils literal notranslate"><span class="pre">TIFF_VARIABLE2</span></code> when
checking for tag count in <a class="reference internal" href="../functions/TIFFReadDirectory.html#c.TIFFReadDirectory" title="TIFFReadDirectory"><code class="xref c c-func docutils literal notranslate"><span class="pre">TIFFReadDirectory()</span></code></a> function. As per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=713">Remote Sensing bugzilla #713 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_getimage.c</span></code>: Support for multiple-alpha-channelled
RGB-images as per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=718">Remote Sensing bugzilla #718 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_getimage.c</span></code>: <code class="docutils literal notranslate"><span class="pre">#define</span> <span class="pre">A1</span></code> bracketing for clean build on
SunPro compiler.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_dirwrite.c</span></code>: Always write <code class="xref c c-macro docutils literal notranslate"><span class="pre">TIFFTAG_SUBIFD</span></code> using <code class="docutils literal notranslate"><span class="pre">LONG</span></code> type
as per bugs
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=703">Remote Sensing bugzilla #703 [no longer available]</a> and
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=704">Remote Sensing bugzilla #704 [no longer available]</a>.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_win32.c</span></code>: Use <span class="c-expr sig sig-inline c"><span class="kt">char</span><span class="p">*</span></span> strings instead of <code class="xref c c-type docutils literal notranslate"><span class="pre">TCHAR</span></code> in windowed
mode as per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=697">Remote Sensing bugzilla #697 [no longer available]</a></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_dirread.c</span></code>: Remove <code class="xref c c-func docutils literal notranslate"><span class="pre">TIFFReassignTagToIgnore()</span></code>
call from the <a class="reference internal" href="../functions/TIFFReadDirectory.html#c.TIFFReadDirectory" title="TIFFReadDirectory"><code class="xref c c-func docutils literal notranslate"><span class="pre">TIFFReadDirectory()</span></code></a> function. <code class="xref c c-func docutils literal notranslate"><span class="pre">TIFFReassignTagToIgnore()</span></code>
must be removed in the future, as it was never used properly. As per
bug <a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=692">Remote Sensing bugzilla #692 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_jpeg.c</span></code>: Added a work-around in order to allow
compilation with the heavily modified version of libjpeg delivered
with Cygwin.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_dir.c</span></code>: Properly handle tags, which have the <code class="xref c c-type docutils literal notranslate"><span class="pre">uint32</span></code>
counts. As per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=693">Remote Sensing bugzilla #693 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_unix.c</span></code>: Make UNIX module compilable (and usable)
on Windows.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tiff.h</span></code>: Added Adobe DNG tags.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_aux.c</span></code>: Set the appropriate <code class="docutils literal notranslate"><span class="pre">ReferenceBlackWhite</span></code> array for
YCbCr image which lacks that tag (noted by Hans Petter Selasky).</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_color.c</span></code>: Division by zero fixed (Hans Petter Selasky).</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_stream.cxx</span></code>, <code class="file docutils literal notranslate"><span class="pre">tiffio.h</span></code>: Added C++ stream interface
contributed by Edward Lam (see
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=654">Remote Sensing bugzilla #654 [no longer available]</a>
for details). Those who want to use C++ streams should
<code class="docutils literal notranslate"><span class="pre">#include</span> <span class="pre"><tiffio.hxx></span></code>.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_open.c</span></code>: Removed <code class="xref c c-func docutils literal notranslate"><span class="pre">close()</span></code> in <a class="reference internal" href="../functions/TIFFOpen.html#c.TIFFClientOpen" title="TIFFClientOpen"><code class="xref c c-func docutils literal notranslate"><span class="pre">TIFFClientOpen()</span></code></a> if file
is bad. This is the callers responsibility.
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=651">Remote Sensing bugzilla #651 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tiffio.h</span></code>, <code class="file docutils literal notranslate"><span class="pre">tif_win32.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">libtiff.def</span></code>: Added <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 to work with the double byte strings (used to represent
filenames in some locales). As per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=625">Remote Sensing bugzilla #625 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_dirread.c</span></code>: Fixed problem when fetching <code class="docutils literal notranslate"><span class="pre">BitsPerSample</span></code> and
<code class="docutils literal notranslate"><span class="pre">Compression</span></code> tags of type <code class="docutils literal notranslate"><span class="pre">LONG</span></code> from broken TIFFs as per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=662">Remote Sensing bugzilla #662 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_dirinfo.c</span></code>: Fixed definition for <code class="docutils literal notranslate"><span class="pre">TIFFTAG_RICHTIFFIPTC</span></code>,
the writecount should have <code class="xref c c-type docutils literal notranslate"><span class="pre">uint32</span></code> type. As per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=662">Remote Sensing bugzilla #662 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_write.c</span></code>: Fixed wrong <code class="docutils literal notranslate"><span class="pre">if()</span></code> statement in
<code class="xref c c-func docutils literal notranslate"><span class="pre">TIFFAppendToStrip()</span></code> function as per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=660">Remote Sensing bugzilla #660 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_dirinfo.c</span></code>: Change definition for <code class="docutils literal notranslate"><span class="pre">TIFFTAG_EXTRASAMPLES</span></code>
field. The caller should supply a count when setting this field. As
per bug <a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=648">Remote Sensing bugzilla #648 [no longer available]</a>.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_jpeg.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">tif_ojpeg.c</span></code>: <code class="docutils literal notranslate"><span class="pre">TIFFTAG_JPEGTABLES</span></code> should have
uint32 count. Use this type everywhere.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_next.c</span></code>: avoid use of <code class="xref c c-type docutils literal notranslate"><span class="pre">u_long</span></code> and <code class="xref c c-type docutils literal notranslate"><span class="pre">u_char</span></code> types.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_fax3.c</span></code>: Fixed case with the wrong decode routines
choosing when the incorrect <code class="docutils literal notranslate"><span class="pre">Group4Options</span></code> tag set. As per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=323">Remote Sensing bugzilla #323 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_dirwrite.c</span></code>: Fixed problem with passing count variable of
wrong type when writing the <code class="xref c c-macro docutils literal notranslate"><span class="pre">TIFF_BYTE</span></code>/<code class="xref c c-macro docutils literal notranslate"><span class="pre">TIFF_SBYTE</span></code> tags in
<code class="xref c c-func docutils literal notranslate"><span class="pre">TIFFWriteNormalTag()</span></code>.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_compress.c</span></code>: Zero division problem fixed (Vladimir Nadvornik,
Dmitry V. Levin).</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">fax2ps.c</span></code>: Be able to extract the first page (#0). As per bug
<a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=690">Remote Sensing bugzilla #690 [no longer available]</a></p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tiff2ps.c</span></code>: Fixed wrong variable data type when read <code class="docutils literal notranslate"><span class="pre">Position</span></code>
tags (Tristan Hill).</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tiff2ps.c</span></code>: Fixed wrong variable data type when read <code class="docutils literal notranslate"><span class="pre">Resolution</span></code>
tags (Peter Fales).</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tiffset.c</span></code>: Check the <code class="xref c c-func docutils literal notranslate"><span class="pre">malloc()</span></code> return value (Dmitry V. Levin).</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>None.</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 v3.7.1</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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