<table><tr><td style="">zzag added inline comments.
</td><a style="text-decoration: none; padding: 4px 8px; margin: 0 8px 8px; float: right; color: #464C5C; font-weight: bold; border-radius: 3px; background-color: #F7F7F9; background-image: linear-gradient(to bottom,#fff,#f1f0f1); display: inline-block; border: 1px solid rgba(71,87,120,.2);" href="https://phabricator.kde.org/D27788">View Revision</a></tr></table><br /><div><strong>INLINE COMMENTS</strong><div><div style="margin: 6px 0 12px 0;"><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a style="float: right; text-decoration: none;" href="https://phabricator.kde.org/D27788#inline-167289">View Inline</a><span style="color: #4b4d51; font-weight: bold;">egl_gbm_backend.cpp:441</span></div>
<div style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; white-space: pre-wrap; clear: both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"><span style="color: #aa4000">static</span> <span class="n">QVector</span><span style="color: #aa2211"><</span><span class="n">EGLint</span><span style="color: #aa2211">></span> <span class="n">regionToRects</span><span class="p">(</span><span style="color: #aa4000">const</span> <span class="n">QRegion</span> <span style="color: #aa2211">&</span><span class="n">lastRegion</span><span class="p">,</span> <span style="color: #aa4000">int</span> <span class="n">height</span><span class="p">)</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"><span class="p">{</span>
</div></div></div>
<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">s/lastRegion/region/</p></div></div><br /><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a style="float: right; text-decoration: none;" href="https://phabricator.kde.org/D27788#inline-167291">View Inline</a><span style="color: #4b4d51; font-weight: bold;">egl_gbm_backend.cpp:465</span></div>
<div style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; white-space: pre-wrap; clear: both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="p">{</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">const</span> <span class="n">QRegion</span> <span class="n">region</span> <span style="color: #aa2211">=</span> <span class="p">(</span><span class="n">output</span><span class="p">.</span><span class="n">pendingDamagedRegions</span><span class="p">()</span> <span style="color: #aa2211">|</span> <span class="n">damagedRegion</span><span class="p">)</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa2211">&</span> <span class="n">output</span><span class="p">.</span><span class="n">output</span><span style="color: #aa2211">-></span><span class="n">geometry</span><span class="p">();</span>
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<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;"><tt style="background: #ebebeb; font-size: 13px;">damagedRegion</tt> contains the region that will be repainted in the next frame, so we don't need to accumulate surface damages again.</p>
<p style="padding: 0; margin: 8px;">I suppose we want something like</p>
<div class="remarkup-code-block" style="margin: 12px 0;" data-code-lang="cpp" data-sigil="remarkup-code-block"><pre class="remarkup-code" style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; padding: 12px; margin: 0; background: rgba(71, 87, 120, 0.08);"><span style="color: #aa4000">const</span> <span class="n">QRegion</span> <span class="n">region</span> <span style="color: #aa2211">=</span> <span class="n">damagedRegion</span> <span style="color: #aa2211">&</span> <span class="n">output</span><span class="p">.</span><span class="n">output</span><span style="color: #aa2211">-></span><span class="n">geometry</span><span class="p">();</span></pre></div></div></div><br /><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a style="float: right; text-decoration: none;" href="https://phabricator.kde.org/D27788#inline-167290">View Inline</a><span style="color: #4b4d51; font-weight: bold;">egl_gbm_backend.cpp:472</span></div>
<div style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; white-space: pre-wrap; clear: both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">if</span> <span class="p">(</span><span style="color: #aa2211">!</span><span class="n">correct</span><span class="p">)</span> <span class="p">{</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="n">qCritical</span><span class="p">()</span> <span style="color: #aa2211"><<</span> <span style="color: #766510">"failed eglSetDamageRegionKHR"</span> <span style="color: #aa2211"><<</span> <span class="n">eglGetError</span><span class="p">();</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="p">}</span>
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<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">Use categorized logging please. Also, it's not a critical error if eglSetDamageRegionKHR() fails. qCWarning(KWIN_DRM) would be a better choice.</p></div></div><br /><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a style="float: right; text-decoration: none;" href="https://phabricator.kde.org/D27788#inline-167288">View Inline</a><span style="color: #4b4d51; font-weight: bold;">egl_gbm_backend.cpp:529-541</span></div>
<div style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; white-space: pre-wrap; clear: both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"><span class="n">QRegion</span> <span class="n">EglGbmBackend</span><span style="color: #aa2211">::</span><span class="n">Output</span><span style="color: #aa2211">::</span><span class="n">pendingDamagedRegions</span><span class="p">()</span> <span style="color: #aa4000">const</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"><span class="p">{</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="n">QRegion</span> <span class="n">region</span><span class="p">;</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #74777d">// Note: An age of zero means the buffer contents are undefined</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">if</span> <span class="p">(</span><span class="n">bufferAge</span> <span style="color: #aa2211">></span> <span style="color: #601200">0</span> <span style="color: #aa2211">&&</span> <span class="n">bufferAge</span> <span style="color: #aa2211"><=</span> <span class="n">damageHistory</span><span class="p">.</span><span class="n">count</span><span class="p">())</span> <span class="p">{</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">for</span> <span class="p">(</span><span style="color: #aa4000">int</span> <span class="n">i</span> <span style="color: #aa2211">=</span> <span style="color: #601200">0</span><span class="p">;</span> <span class="n">i</span> <span style="color: #aa2211"><</span> <span class="n">bufferAge</span> <span style="color: #aa2211">-</span> <span style="color: #601200">1</span><span class="p">;</span> <span class="n">i</span><span style="color: #aa2211">++</span><span class="p">)</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="n">region</span> <span style="color: #aa2211">|=</span> <span class="n">damageHistory</span><span class="p">[</span><span class="n">i</span><span class="p">];</span>
</div></div></div>
<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">I think we can drop this method now since only EglGbmBackend::prepareRenderingForScreen() needs to accumulate damage.</p></div></div></div></div></div><br /><div><strong>REPOSITORY</strong><div><div>R108 KWin</div></div></div><br /><div><strong>REVISION DETAIL</strong><div><a href="https://phabricator.kde.org/D27788">https://phabricator.kde.org/D27788</a></div></div><br /><div><strong>To: </strong>apol, KWin, Plasma: Mobile, zzag<br /><strong>Cc: </strong>mwolff, zzag, davidedmundson, kwin, Orage, cacarry, LeGast00n, The-Feren-OS-Dev, cblack, jraleigh, zachus, fbampaloukas, mkulinski, ragreen, jackyalcine, iodelay, crozbo, bwowk, ZrenBot, ngraham, alexeymin, himcesjf, lesliezhai, ali-mohamed, hardening, romangg, jensreuterberg, abetts, sebas, apol, ahiemstra, mart<br /></div>