{ 115, -52 },
{ 98, -55 },
{ 122, -60 } };
+int ChanBuf[NSSIZE];
int SSumLR[NSSIZE*2];
int iFMod[NSSIZE];
int iCycle = 0;
for(ns=ns_from;ns<ns_to;ns++) // loop until 1 ms of data is reached
{
- int sval;
-
if(!(dwChannelOn&(1<<ch))) break; // something turned ch off (adsr or flags)
if(s_chan[ch].bFMod==1 && iFMod[ns]) // fmod freq channel
if(s_chan[ch].bNoise)
fa=iGetNoiseVal(ch); // get noise val
else fa=iGetInterpolationVal(ch); // get sample val
+ ChanBuf[ns]=fa;
+
+ ////////////////////////////////////////////////
+ // ok, go on until 1 ms data of this channel is collected
+
+ s_chan[ch].spos += s_chan[ch].sinc;
+ENDX: ;
+ }
- sval = (MixADSR(ch) * fa) / 1024; // mix adsr
+ MixADSR(ch, ns_from, ns_to);
+
+ if(s_chan[ch].bFMod==2) // fmod freq channel
+ memcpy(iFMod, ChanBuf, sizeof(iFMod));
+ else for(ns=ns_from;ns<ns_to;ns++)
+ {
+ int sval = ChanBuf[ns];
- if(s_chan[ch].bFMod==2) // fmod freq channel
- iFMod[ns]=sval; // -> store 1T sample data, use that to do fmod on next channel
- else // no fmod freq channel
{
//////////////////////////////////////////////
// ok, left/right sound volume (psx volume goes from 0 ... 0x3fff)
if(s_chan[ch].bRVBActive) StoreREVERB(ch,ns,sval);
}
+ }
+ }
+ }
- ////////////////////////////////////////////////
- // ok, go on until 1 ms data of this channel is collected
+ // advance "stopped" channels that can cause irqs
+ // (all chans are always playing on the real thing..)
+ if(!bIRQReturn && (spuCtrl&CTRL_IRQ))
+ for(ch=0;ch<MAXCHAN;ch++)
+ {
+ if(dwChannelOn&(1<<ch)) continue; // already handled
+ if(s_chan[ch].pCurr == (unsigned char *)-1)
+ continue;
+ if(s_chan[ch].pCurr > pSpuIrq && s_chan[ch].pLoop > pSpuIrq)
+ continue;
- s_chan[ch].spos += s_chan[ch].sinc;
+ if(s_chan[ch].iActFreq!=s_chan[ch].iUsedFreq) // new psx frequency?
+ VoiceChangeFrequency(ch);
+
+ s_chan[ch].spos += s_chan[ch].sinc * NSSIZE;
+ while(s_chan[ch].spos >= 28 * 0x10000)
+ {
+ unsigned char *start=s_chan[ch].pCurr;
+ int flags = start[1];
+
+ // Tron Bonne hack, probably wrong (could be wrong memory contents..)
+ if(flags & ~7) flags = 0;
+
+ if(start == pSpuIrq)
+ {
+ do_irq();
+ bIRQReturn = 1;
+ }
+ else if((flags & 1) && start == s_chan[ch].pLoop)
+ {
+ // looping on self
+ s_chan[ch].pCurr=(unsigned char *)-1;
+ break;
+ }
+
+ if((flags&4) && !s_chan[ch].bIgnoreLoop)
+ s_chan[ch].pLoop=start;
+
+ s_chan[ch].pCurr += 16;
+
+ if(flags & 1)
+ s_chan[ch].pCurr = s_chan[ch].pLoop;
+
+ s_chan[ch].spos -= 28 * 0x10000;
}
-ENDX: ;
}
- }
if(bIRQReturn && iSPUIRQWait) // special return for "spu irq - wait for cpu action"
{
}
*/
+// debug
+void spu_get_debug_info(int *chans_out, int *fmod_chans_out, int *noise_chans_out)
+{
+ int ch = 0, fmod_chans = 0, noise_chans = 0;
+
+ for(;ch<MAXCHAN;ch++)
+ {
+ if (!(dwChannelOn & (1<<ch)))
+ continue;
+ if (s_chan[ch].bFMod == 2)
+ fmod_chans |= 1 << ch;
+ if (s_chan[ch].bNoise)
+ noise_chans |= 1 << ch;
+ }
+
+ *chans_out = dwChannelOn;
+ *fmod_chans_out = fmod_chans;
+ *noise_chans_out = noise_chans;
+}
+
// vim:shiftwidth=1:expandtab