[x264-devel] Re: [PATCH] Altivec optimizations for quant4x4 and quant4x4dc

[Eric Petit]

  Hi,

  I usually take care of merging AltiVec patches, but I don't have  
access to a G4 or G5 now, and won't till next month. Maybe someone  
else can have a look at Guillaume's changes before that?

Eric

On Aug 8, 2006, at 5:26 PM, Guillaume POIRIER wrote:
> Hi all,
> Please find in attachment the altivec-optimized version of quant 4x4 
> (+dc) and quant 8x8. All now pass regression tests, so they are all  
> activated
> I've also found out that even though my 4x4 DC also pass regression  
> tests, it doesn't seem to be called too often.
> It's likely to be because I had to restrict its use to the cases  
> where maxQdc < (1<<15).
> That can hopefully be improved if I manage to understand why I  
> can't use  my 4x4dc with maxQdc < (1<<16) or more.
>
>
> I've also cleaned up the patch to put the unions as typedefs, and  
> also fixed some indentation problems.
>
> Sorry in advance if I can't be responsive to address any comment  
> made to the code, as I don't have any Internet access where the PPC  
> machine is :-(.
>
> Guillaume

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