Re: Transgaming comments on Alsa for WineX

[James Courtier-Dutton <James@superbug.demon.co.uk>]

R Chan wrote:
> Transgaming have investigated Alsa 1 as a sound option to for WineX.
> 
> http://www.transgaming.com/showthread.php?news=98
> 
> Excerpt
> 
> " ALSA, of particular interest to TransGaming's Linux audience, does not 
> provide
> much of an added benefit over OSS. The primary speed advantage, hardware 
> mixing,
> a slower kludgy implementation use due to the fact that looping sound 
> doesn't appear
> to be supported; although full duplex support should be easier to 
> provide than with OSS.
> The major drawback of ALSA is that its mmap interface is not compatible 
> with what is
> required for DirectSound unless undocumented interfaces are used. All in 
> all it appears
> that using ALSA would provide some speed advantages for newer cards, but 
> to be
> done properly would require a rewrite of the winealsa driver. Thus we 
> would suggest
> that, for the time being, people continue to use the OSS emulation layer of
> ALSA with "MMap" = "Y" enabled in their config file to get the best 
> performance if it's supported on their sound card."
> 
> Apart from mmap which I guess is architectural and quite difficult to 
> change, what about their
> comments on looping sound - useful?
> 
> Cheers
> Richard
> 

I don't think the winex people have much of a clue about how alsa works 
as I a pretty sure all the bad comments about alsa are untrue.




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