>The renderer is not the fastest thing ever. Plus you have the overhead
of
>X... I think it is possible to use DGA with X, if it is not then try
>loading the ggi libraries and playing in DGA mode. This works well for
me.
I haven't seen an option anywhere for running via DGA. Does it do this
automagically if you're root? I was also under the impression that
MIT-SHM took out a lot of X's overhead. And I've left ggi behind awhile
ago...
>We lose the ability to support the color emphasis and monochrome
>bits, but gain a lot of speed. These changes, along with some
modifications
>to sprite rendering, have increased my speed from 20 fps to 55.
Sounds cool
> I'm
>at the point where the actual CPU emulation (not using the dyn-rec
engine)
>uses >50% of the time, so it's worth optimizing that now.
Do you have some profiling code?
> I may backport
>pixels.h to the x86 version of TuxNES to check on the speedup.
That would be very cool. Heck, I'd like to run on my Dreamcast...
>BTW, TuxNES already has an automatic frame skip.
>Look in the UpdateDisplay*() functions.
Hmmm. It doesn't seem to do it, then. It seems to render every frame and
wait if necessary.
>Have you tried disabling sound? It plays jerky if I leave it on...
No difference here.
It's particularly odd how the old renderer is supposedly faster than the
new, but doesn't seem so for me. I guess the renderer itself is faster,
but the overhead in X is greater.
Is anyone else working on speedups in the X renderer?
-----------------------------------------------------
http://eo.yifan.net
Free POP3/Web Email, File Manager, Calendar and Address Book
|
