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This is an automatically generated e-mail. To reply, visit:
<a href="https://git.reviewboard.kde.org/r/128763/">https://git.reviewboard.kde.org/r/128763/</a>
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<div>Review request for KDE Frameworks and Plasma.</div>
<div>By David Edmundson.</div>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
plasma-framework
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<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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">WindowThumbnail did some open GL operations, discarding old textures, in the GUI thread. Whislt it's not going to cause a threading issue (as updatePaintNode always ran when the main thread was blocked) we're not meant to mix threads with openGL contexts.</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">It also seems to have a GL leak on nvidia, which was previously masked
by the double delete fixed in https://git.reviewboard.kde.org/r/126131/diff/2/
It seems only one worked, and in the applied version we went with the wrong one.</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">This patch makes use of QQuickItem::releaseResources to delete the GL
textures on window change and destructor; it's then removed from
stopRedirecting so that start/stop redirecting handles xcb on the GUI thread and updatePaintNode/discardPixmap is the GL stuff on the render thread. </p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">See http://doc.qt.io/qt-5/qquickitem.html#graphics-resource-handling</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">REVIEW:</p></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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">Using nvidia with proprietory drivers (which puts me QSG_RENDER_LOOP=threaded) mouse over the panel a lot. VRAM didn't increase. Previews still appear.
"Used Dedicated Memory:" in nvidia-settings remained roughly static, rather than constantly increasing.</p></pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>src/declarativeimports/core/windowthumbnail.h <span style="color: grey">(7276f95de16e71006618f3282d8eaf419a199d1d)</span></li>
<li>src/declarativeimports/core/windowthumbnail.cpp <span style="color: grey">(d106994315099ab6e6f948c31a606d5309ae03e2)</span></li>
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<p><a href="https://git.reviewboard.kde.org/r/128763/diff/" style="margin-left: 3em;">View Diff</a></p>
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