Differential D18803

[effects/screenedge] Use correct blend function
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Authored by zzag on Feb 7 2019, 12:05 AM.

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Reviewers
davidedmundson
Group Reviewers
KWin
Commits
R108:bdddf4daf2d8: [effects/screenedge] Use correct blend function
R108:16a2799b3a25: Merge branch 'Plasma/5.15'
Summary

Glow textures already have the red, green, and blue channels
premultiplied by the alpha component (because of QImage), thus we can't
use GL_SRC_ALPHA for sfactor in glBlendFunc.

BUG: 403570

Test Plan

Before:

After:

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R108 KWin
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zzag created this revision.Feb 7 2019, 12:05 AM
Restricted Application added a project: KWin. · View Herald TranscriptFeb 7 2019, 12:05 AM
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zzag requested review of this revision.Feb 7 2019, 12:05 AM
davidedmundson accepted this revision.Feb 7 2019, 12:09 AM
This revision is now accepted and ready to land.Feb 7 2019, 12:09 AM
Closed by commit R108:bdddf4daf2d8: [effects/screenedge] Use correct blend function (authored by zzag). · Explain WhyFeb 7 2019, 12:13 AM
This revision was automatically updated to reflect the committed changes.

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effects/screenedge/screenedgeeffect.cpp

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