'Re: Review Request 115297: Keep KWin responsive while loading all effects'

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List:       kwin
Subject:    Re: Review Request 115297: Keep KWin responsive while loading all effects
From:       Martin_Gräßlin <mgraesslin () kde ! org>
Date:       2014-01-28 6:45:19
Message-ID: 20140128064519.26257.18941 () probe ! kde ! org
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This is an automatically generated e-mail. To reply, visit:
https://git.reviewboard.kde.org/r/115297/
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(Updated Jan. 28, 2014, 6:45 a.m.)

Status
------

This change has been marked as submitted.

Review request for kwin.

Repository: kde-workspace

Description
-------

Keep KWin responsive while loading all effects

Loading all effects during startup can take some time[1] and during
that time the screen is frozen as the loading blocks the compositor.

This change doesn't load effects directly but puts them into a queue.
The loading is controlled by a single-shooting QTimer with 0 msec
interval. Thus we get a firing compositing timer in between and can
ensure that a frame is rendered when needed and also react to X events
during the loading.

[1] On my high-end system the set of effects I use take about 200 msec
    to load.

Diffs
-----

  kwin/effects.cpp 7da54f4992fcc23989a99e60ec57bcb97c3cc0c3 
  kwin/effects.h adcf970a43745cbd44f2510bc0da23aa0450637b 

Diff: https://git.reviewboard.kde.org/r/115297/diff/

Testing
-------

Added some debug statements to see whether we get frames rendered between loading. Yes, works.

Thanks,

Martin Gräßlin

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      This is an automatically generated e-mail. To reply, visit:
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<div>Review request for kwin.</div>
<div>By Martin Gräßlin.</div>

<p style="color: grey;"><i>Updated Jan. 28, 2014, 6:45 a.m.</i></p>

<div style="margin-top: 1.5em;">
 <b style="color: #575012; font-size: 10pt;">Repository: </b>
kde-workspace
</div>

<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;">Keep KWin responsive while loading all effects

Loading all effects during startup can take some time[1] and during
that time the screen is frozen as the loading blocks the compositor.

This change doesn&#39;t load effects directly but puts them into a queue.
The loading is controlled by a single-shooting QTimer with 0 msec
interval. Thus we get a firing compositing timer in between and can
ensure that a frame is rendered when needed and also react to X events
during the loading.

[1] On my high-end system the set of effects I use take about 200 msec
    to load.</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;">Added some debug statements to see whether we get frames rendered \
between loading. Yes, works.</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>kwin/effects.cpp <span style="color: \
grey">(7da54f4992fcc23989a99e60ec57bcb97c3cc0c3)</span></li>

 <li>kwin/effects.h <span style="color: \
grey">(adcf970a43745cbd44f2510bc0da23aa0450637b)</span></li>

</ul>

<p><a href="https://git.reviewboard.kde.org/r/115297/diff/" style="margin-left: \
3em;">View Diff</a></p>

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