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This is an automatically generated e-mail. To reply, visit:
<a href="http://git.reviewboard.kde.org/r/106300/">http://git.reviewboard.kde.org/r/106300/</a>
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<p style="margin-top: 0;">On September 1st, 2012, 1:20 p.m., <b>Christoph Feck</b> wrote:</p>
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<a href="http://git.reviewboard.kde.org/r/106300/diff/1/?file=82610#file82610line49" style="color: black; font-weight: bold; text-decoration: underline;">kimgio/webp.cpp</a>
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(Diff revision 1)
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<td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">bool WebPHandler::read(QImage *retImage)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="o">*</span><span class="n">retImage</span> <span class="o">=</span> <span class="n">QImage</span><span class="p">(</span><span class="n">width</span><span class="p">,</span> <span class="n">height</span><span class="p">,</span> <span class="n">QImage</span><span class="o">::</span><span class="n">Format_ARGB32</span><span class="p">);</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Needs to check image.isValid() before writing data via scanLine() pointers. The allocation may fail because of too large width*height.
Additionally, I would like the loader to return a Format_RGB32 image, when the data did not contain an alpha component.</pre>
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<p>On September 1st, 2012, 9:12 p.m., <b>Martin Koller</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">QImage has no isValid() method. Also I find no hint in QImage docu that it _can_ be invalid after this constructor.
Regarding alpha: the version of the WebP library I have installed on openSuse 12.1 (0.1.2) does not have
a function to check if the image has alpha data.
On the Google page https://developers.google.com/speed/webp/docs/api?hl=ru
I find the function WebPGetFeatures() but as said, my version does not have it.
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Sorry, I meant isNull(). Since a constructor has no return code, a failed allocation results in a null image.
If your version has no way to detect alpha component, then use a newer version. If the newest libwebp does not return that information, then wait until its developers wake up (a joggle them).</pre>
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<p>- Christoph</p>
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<p>On September 1st, 2012, 9:23 p.m., Martin Koller wrote:</p>
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<div>Review request for kdelibs.</div>
<div>By Martin Koller.</div>
<p style="color: grey;"><i>Updated Sept. 1, 2012, 9:23 p.m.</i></p>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">This patch adds support for the new Google invented WebP image format. See https://developers.google.com/speed/webp/?hl=ru
The patch is missing a cmake rule to make it optional, though, but I sent a mail to KDE-core list in the hope someone knows...</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">some KDE apps, including read/write with a modified kolourpaint (to be able to change the quality)</pre>
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<b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>
<a href="http://bugs.kde.org/show_bug.cgi?id=267365">267365</a>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>kimgio/CMakeLists.txt <span style="color: grey">(26329c0)</span></li>
<li>kimgio/webp.cpp <span style="color: grey">(PRE-CREATION)</span></li>
<li>kimgio/webp.desktop <span style="color: grey">(PRE-CREATION)</span></li>
<li>kimgio/webp.h <span style="color: grey">(PRE-CREATION)</span></li>
<li>mimetypes/kde.xml <span style="color: grey">(a82b87c)</span></li>
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<p><a href="http://git.reviewboard.kde.org/r/106300/diff/" style="margin-left: 3em;">View Diff</a></p>
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