<html>
<body>
<div style="font-family: Verdana, Arial, Helvetica, Sans-Serif;">
<table bgcolor="#f9f3c9" width="100%" cellpadding="8" style="border: 1px #c9c399 solid;">
<tr>
<td>
This is an automatically generated e-mail. To reply, visit:
<a href="http://svn.reviewboard.kde.org/r/6109/">http://svn.reviewboard.kde.org/r/6109/</a>
</td>
</tr>
</table>
<br />
<div>
<table width="100%" border="0" bgcolor="white" style="border: 1px solid #C0C0C0; border-collapse: collapse; margin: 2px padding: 2px;">
<thead>
<tr>
<th colspan="4" bgcolor="#F0F0F0" style="border-bottom: 1px solid #C0C0C0; font-size: 9pt; padding: 4px 8px; text-align: left;">
<a href="http://svn.reviewboard.kde.org/r/6109/diff/1/?file=42509#file42509line81" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/KDE/kdeedu/marble/src/lib/FastMercatorTextureMapper.cpp</a>
<span style="font-weight: normal;">
(Diff revision 1)
</span>
</th>
</tr>
</thead>
<tbody style="background-color: #e4d9cb; padding: 4px 8px; text-align: center;">
<tr>
<td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
<td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">void FastMercatorTextureMapper::mapTexture( ViewParams *viewParams )</pre></td>
</tr>
</tbody>
<tbody>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">81</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">const</span> <span class="n">QRect</span> <span class="n">rect</span> <span class="o">=</span> <span class="n">QRect</span><span class="p">(</span> <span class="n">QPoint</span><span class="p">(</span> <span class="n">xLeft</span><span class="p">,</span> <span class="n">yTop</span> <span class="p">),</span> <span class="n">QPoint</span><span class="p">(</span> <span class="n">xRight</span><span class="p">,</span> <span class="n">yBottom</span> <span class="p">)</span> <span class="p">);</span></pre></td>
</tr>
</tbody>
</table>
<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Have you tried using QRectF here? And maybe calculating xLeft, yTop and xRight/yBottom as floats to reduce artifacts?</pre>
</div>
<br />
<p>- Torsten</p>
<br />
<p>On December 12th, 2010, 11:11 p.m., Bernhard Beschow wrote:</p>
<table bgcolor="#fefadf" width="100%" cellspacing="0" cellpadding="8" style="background-image: url('http://svn.reviewboard.kde.orgrb/images/review_request_box_top_bg.png'); background-position: left top; background-repeat: repeat-x; border: 1px black solid;">
<tr>
<td>
<div>Review request for marble.</div>
<div>By Bernhard Beschow.</div>
<p style="color: grey;"><i>Updated 2010-12-12 23:11:04</i></p>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
<table width="100%" bgcolor="#ffffff" cellspacing="0" cellpadding="10" style="border: 1px solid #b8b5a0">
<tr>
<td>
<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 introduces an optimized code path for the case that both the tile projection and the map projection are of type Mercator. In this very common case, the tiles can be scaled rather than reprojected, promising a significant speedup. Moreover, it seems to avoid crashes in high zoom levels on the N900.</pre>
</td>
</tr>
</table>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
<table width="100%" bgcolor="#ffffff" cellspacing="0" cellpadding="10" style="border: 1px solid #b8b5a0">
<tr>
<td>
<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;">I have measured speedups of up to 2.7 on my system. This seems to depend on the QImage::Format, so format conversion should be avoided in a future version if possible.
The image quality is roughly of outline quality when a discrete zoom level isn't hit.</pre>
</td>
</tr>
</table>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
<ul style="margin-left: 3em; padding-left: 0;">
<li>/trunk/KDE/kdeedu/marble/src/lib/AbstractScanlineTextureMapper.h <span style="color: grey">(1205882)</span></li>
<li>/trunk/KDE/kdeedu/marble/src/lib/AbstractScanlineTextureMapper.cpp <span style="color: grey">(1205882)</span></li>
<li>/trunk/KDE/kdeedu/marble/src/lib/CMakeLists.txt <span style="color: grey">(1205882)</span></li>
<li>/trunk/KDE/kdeedu/marble/src/lib/FastMercatorTextureMapper.h <span style="color: grey">(PRE-CREATION)</span></li>
<li>/trunk/KDE/kdeedu/marble/src/lib/FastMercatorTextureMapper.cpp <span style="color: grey">(PRE-CREATION)</span></li>
<li>/trunk/KDE/kdeedu/marble/src/lib/TextureLayer.cpp <span style="color: grey">(1205882)</span></li>
</ul>
<p><a href="http://svn.reviewboard.kde.org/r/6109/diff/" style="margin-left: 3em;">View Diff</a></p>
</td>
</tr>
</table>
</div>
</body>
</html>