Re: [AD] X vsync emulation (timing)

[Chris <chris.kcat@xxxxxxxxxx>]

Peter Wang wrote:
> The problem is that the background thread runs at 100Hz.  You can't 
> update retrace_count at some arbitrary rate without introducing another 
> thread, which is just overkill.

True.. but I think the timer should be designed so it attempts to 
increment at the speed of the reported refresh rate, instead of a flat 
100Hz. And while you could do that in the input callback, I don't 
believe that's where it should be. As well, I think it should be 
updating retrace_count directly, or else we run the risk of vsync 
retraces being different than the reported retraces (which I believe we 
should avoid).