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List:       kwin
Subject:    Re: [Bug 240360] KWin blur effect eats 30% CPU while machine is idle
From:       Thomas =?utf-8?q?L=C3=BCbking?= <thomas.luebking () web ! de>
Date:       2010-06-01 22:10:14
Message-ID: 201006020010.14321.thomas.luebking () web ! de
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> <dev note>Sharpen requires GLSL while blur also works with just
> GL_ARB_FRAGMENT_PROGRAM - it contains embedded assembler.
Ahh, thanks.
 
> I'm just thinking about how we could disable blur for the legacy drivers
> without disabling it for all users. Maybe use 
KGlobalSettings::effectsLevel()?
What about relying the default on the existence on glsl support?

Is there any known GPU/Driver combo that could actually provide a sane* fps 
rate on this effect, yet does NOT support glsl?

*according to google, i900 & 9i50 seem to support programs but not shaders... 
:-\ that's gonna bring some "kwin is slow" bugreports =D
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