Re: [AD] X vsync emulation (timing)

[Peter Wang <tjaden@xxxxxxxxxx>]

Chris wrote:

> What I interpretted, when the idea initially was proposed, was to use
> the background thread with a new procedure, not the input procedure,
> to increment retrace_count, and for vsync to busy loop until
> retrace_count increments. 

It'd be the same thing as my patch except that you busy-wait instead of 
calling select().  I can live with that.

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.

Peter