[mythtv] Current state of MythTv using Via XvMC VLD Hardware MPEG decoding

[Isaac Richards]

On Monday 02 May 2005 04:27 pm, James Stembridge wrote:
> On 5/2/05, Isaac Richards <ijr at case.edu> wrote:
> > On Monday 02 May 2005 04:08 pm, James Stembridge wrote:
> > > Why not just determine mmx support at runtime? That would save
> > > the whole is/isn't mmx enabled questions.
> >
> > Because it's a compiler issue?
>
> I'm not sure I follow. The easy approach would seem to be to compile
> in any processors specific code (say MMX, SSE, etc. for x86) and then
> determine what the processor supports at runtime and use different
> routines appropriately. That way a single binary will work on
> different machines in a somewhere near optimal fashion.
>
> If we're talking about the processor using MMX of it's own accord I'm
> not aware that things had got that advanced...

If you enable certain arch types in gcc, it'll refuse to compile mmx code.  
Same issue that the x86-64 folks have.

Isaac