Re: [Tuxnes-devel] Smoother scrolling

[Jason D. S. <jd...@us...>]

Ryan Jackson wrote:

> Definately!  Things look a lot smoother now.  I've noticed a couple of
> things however.  It seems to run more smoothly in some display modes
> than in others. Might this have something to do with the difference
> between the NTSC refresh rate and whatever rate my monitor is running
> at?  (I don't know too much about that stuff (yet)).

I doubt it.  Even if the monitor only updated every other frame you 
shouldn't notice the difference.

> The new behavior seems to make the emulator more sensitive to timing
> problems when sharing the CPU with another cpu-bound process. Example: I
> was testing the patch with Super Mario Brothers.  After a few minutes,
> cron started a password-cracking process in the background.  Not only
> did play slow down (as with the old behavior), but every few seconds the
> graphics would glitch.  It looked like it started to redraw the
> framebuffer, but instead of drawing it at the top of the screen it
> started in the middle.  Kind of hard to describe. :-/

This is probably because it always sleeps, instead of only sleeping when 
things get behind.  This provides better real-time behavior but makes it 
more likely that the game can't keep up with real-time.

jason