On Tuesday 16 March 2010 14:38:08 Paul Davis wrote: > On Mon, Mar 15, 2010 at 11:41 PM, cal <cal@xxxxxxxxxxxx> wrote: > > Long ago I added some code to yoshimi to deal with denormals (from Jens M > > Andreasen, LAD > > <http://lists.linuxaudio.org/pipermail/linux-audio-dev/2009-August/024707 > >.html>). > > > > Now I'm wondering if it's actually cool for a synth app or plugin to > > arrogantly go about changing cpu flags underneath other running apps, eg > > ardour. I'd like to hear the thoughts of the wise on whether that's a > > very bad thing for a "minor" app to be doing. > > the OS will restore CPU flags on a context switch. so, doing this in a > plugin is an absolute no-no; doing it in a separate application is > totally fine. i think. Additionally I think this should be the task of the host, not the plugin if CPU-flags are concerned. There might be reasons why the host has already circumvented the denormals by other ways. Arnold
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