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List:       kwin
Subject:    [Bug 240360] KWin blur effect eats 30% CPU while machine is idle
From:       Martin Gräßlin  <kde () martin-graesslin ! com>
Date:       2010-06-01 20:38:42
Message-ID: 20100601203842.56CF942FC4 () immanuel ! kde ! org
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https://bugs.kde.org/show_bug.cgi?id=240360





--- Comment #5 from Martin Gräßlin <kde martin-graesslin com>  2010-06-01 22:38:40 ---
> --- Comment #4 from Thomas Lübking <thomas luebking web de>  2010-06-01
> 21:54:40 --- w/o actually knowing the implemetation details of the blur
> plugin i'm pretty sure that it uses stencil shaders - as does the sharpen
> plugin.
> so i'm a bit confused why you can use blur but not sharpen.
<dev note>Sharpen requires GLSL while blur also works with just 
GL_ARB_FRAGMENT_PROGRAM - it contains embedded assembler.

I'm just thinking about how we could disable blur for the legacy drivers 
without disabling it for all users. Maybe use KGlobalSettings::effectsLevel()?

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