Re: [Open2x-devel] SDL_GetTicks optimization

[John W. <Joh...@Di...>]

Hi Matt,

>I have read over the MMSP2 PDF "documentation" but haven't tried doing 
>anything with the registers.  It's sure hard without example code.

Ahhh, same boat at the rest of us then.

>This would be better than the current software-only solution.  I personally

>don't need YV12 support right now, but if someone else wants to tackle 
>this, I would be happy to provide the algorithm to convert YV12 to YUY2 and

>also provide some advice on how best to accomplish this.

As I am the one that would like it I am happy to have a go at implementing
this as and when. If you're happy to provide a little help now and then that
would be wonderful as I am learning as I go.

>c) SDL_GP2X_GetMiniTicks which does nothing but returns the contents of 
>0xA00 (the 10 minute timer).
>Pros: thread safe, user can decide whether to divide by 7373 or 7372.8, 
>does not need to be called every 10 minutes.
>Cons: user will need to compensate for wraparound themselves, not 
>compatible with SDL_GetTicks

Gets my vote. It would also be easy enough to define out and should not
pollute code much.

Regards,

John