[Theora-dev] MMX/mmxext optimisations

[Rodolphe Ortalo]

I confirm encoder ok (with at least x2 speed improvements) on my Athlon, and 
that the player does not.
But it's possible to play video made with the MMX-optimized encoder using the 
regular (non-MMX) player. :-)

I'm using GCC 3.4 on Debian sarge, with patch theora2-mmx.patch from Adam 
(against svn head) and also patch.mmx.gcc3.4 from Ivan.

Really nice work!!!

Trying to do some profiling...

Rodolphe

On Tuesday 24 August 2004 15:05, Ivan wrote:
> On Tue, Aug 24, 2004 at 02:32:35PM +0200, Ivan wrote:
> > > gcc 3.4.1 does not like static constants in
> > > i386/fdct_mmx.c and
> > > i386/dsp_mmx.c
>
> Found the reason, since 3.4 gcc optimizes away unused static variables.
>
> Attaching the patch which makes it compile and link as supposed.
>
> (decoder is still broken)
>
> Regards,
> --
> Ivan