[SDL] Ring a bell...

[David Olofson]

On Sunday 06 May 2007 21:26, Manuel García Cabrera wrote:
[...]
> If it's gonna be platform dependent, never mind.

Well, it's like one line of code per platform - but even so, it's 
pretty hard to get it right without actually testing on each 
platform...

You might want to have a look at my "speaker" hack over here:
	http://olofson.net/mixed.html

Haven't looked at that code in a long time, but I believe the SDL part 
should be pretty portable. For a simple beep, you can drop pretty 
much everything but the SDL audio setup code and the callback, I 
think.

You should definitely drop the CONSOLE (Linux only, and requires root 
privileges unless you're actually running from a Linux text console) 
and XBELL (X11 only) targets.

Or maybe even simpler; make a callback that just beeps at all times, 
and use SDL_PauseAudio() to switch it on and off. Or even open/close 
audio altogether. (No point in wasting cycles playing silence at all 
times - but AFAIK, SDL audio *will* do just that if you just use 
SDL_PauseAudio(), as that's only meant to detach the callback.)


//David Olofson - Programmer, Composer, Open Source Advocate

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