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Tyrian 2000 in DOS with sound on PCIe only machines? (Announce)

posted by Japheth Homepage, Germany (South), 28.03.2024, 06:34

> Does this mean that if one disables OPL3 entirely or vice-versa, that, in
> so only having one input thereby, the volume output stream would be
> maximum?

I'm not sure, but in such cases the software mixer has a lot less to do:


if( digital )
   for( i = 0; i < samples * 2; i++ ) *(pPCM+i) = ( *(pPCM+i) * voicevol ) >> 8;
else
   memset( pPCM, 0, samples * sizeof(int16_t) * 2 );


The "if( digital )" is the branch that's used when only SFX sound is to render, while the "memset()"-branch runs when even SFX sound is off - yes, it's true, in this case sbemu/vsbhda still runs in the background, interrupts every few millisecs, emitting "silence"...

---
MS-DOS forever!

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