static int check_irq(int ch, unsigned char *pos)
{
- if((spu.spuCtrl & CTRL_IRQ) && pos == spu.pSpuIrq)
+ if((spu.spuCtrl & (CTRL_ON|CTRL_IRQ)) == (CTRL_ON|CTRL_IRQ) && pos == spu.pSpuIrq)
{
//printf("ch%d irq %04x\n", ch, pos - spu.spuMemC);
do_irq();
return 0;
}
+void check_irq_io(unsigned int addr)
+{
+ unsigned int irq_addr = regAreaGet(H_SPUirqAddr) << 3;
+ //addr &= ~7; // ?
+ if((spu.spuCtrl & (CTRL_ON|CTRL_IRQ)) == (CTRL_ON|CTRL_IRQ) && addr == irq_addr)
+ {
+ //printf("io irq %04x\n", irq_addr);
+ do_irq();
+ }
+}
+
////////////////////////////////////////////////////////////////////////
// START SOUND... called by main thread to setup a new sound on a channel
////////////////////////////////////////////////////////////////////////
s_chan->iSBPos=27;
s_chan->spos=0;
- s_chan->pCurr = spu.spuMemC+((regAreaGet(ch,6)&~1)<<3);
+ s_chan->pCurr = spu.spuMemC + ((regAreaGetCh(ch, 6) & ~1) << 3);
spu.dwNewChannel&=~(1<<ch); // clear new channel bit
spu.dwChannelDead&=~(1<<ch);
- if (s_chan->iRawPitch)
- spu.dwChannelsAudible|=1<<ch;
+ spu.dwChannelsAudible|=1<<ch;
}
static void StartSound(int ch)
start = s_chan->pLoop;
}
- else
- check_irq(ch, start); // hack, see check_irq below..
+
+ check_irq(ch, start);
predict_nr = start[0];
shift_factor = predict_nr & 0xf;
decode_block_data(SB, start + 2, predict_nr, shift_factor);
flags = start[1];
- if (flags & 4 && (!s_chan->bIgnoreLoop))
+ if (flags & 4 && !s_chan->bIgnoreLoop)
s_chan->pLoop = start; // loop adress
start += 16;
- if (flags & 1) { // 1: stop/loop
- start = s_chan->pLoop;
- check_irq(ch, start); // hack.. :(
- }
-
- if (start - spu.spuMemC >= 0x80000)
- start = spu.spuMemC;
-
s_chan->pCurr = start; // store values for next cycle
s_chan->prevflags = flags;
start = s_chan->pLoop;
}
- else
- check_irq(ch, start);
+
+ check_irq(ch, start);
flags = start[1];
- if (flags & 4)
+ if (flags & 4 && !s_chan->bIgnoreLoop)
s_chan->pLoop = start;
start += 16;
- if (flags & 1) {
- start = s_chan->pLoop;
- check_irq(ch, start);
- }
-
s_chan->pCurr = start;
s_chan->prevflags = flags;
block += 16;
if (flags & 1) { // 1: stop/loop
block = s_chan->pLoop;
- if (block == spu.pSpuIrq) // hack.. (see decode_block)
- break;
}
pos += 28 << 16;
}
d = SkipADSR(&s_chan->ADSRX, d);
if (d < ns_to) {
spu.dwChannelsAudible &= ~(1 << ch);
+ s_chan->ADSRX.State = ADSR_RELEASE;
s_chan->ADSRX.EnvelopeVol = 0;
}
}
do_irq();
}
}
+ check_irq_io(spu.spuAddr);
if (unlikely(spu.rvb->dirty))
REVERBPrep();
static void do_samples_finish(int *SSumLR, int ns_to,
int silentch, int decode_pos)
{
- int volmult = spu_config.iVolume;
+ int vol_l = ((int)regAreaGet(H_SPUmvolL) << 17) >> 17;
+ int vol_r = ((int)regAreaGet(H_SPUmvolR) << 17) >> 17;
int ns;
int d;
}
MixXA(SSumLR, ns_to, decode_pos);
-
- if((spu.spuCtrl&0x4000)==0) // muted? (rare, don't optimize for this)
+
+ vol_l = vol_l * spu_config.iVolume >> 10;
+ vol_r = vol_r * spu_config.iVolume >> 10;
+
+ if (!(spu.spuCtrl & 0x4000) || !(vol_l | vol_r))
{
+ // muted? (rare)
memset(spu.pS, 0, ns_to * 2 * sizeof(spu.pS[0]));
+ memset(SSumLR, 0, ns_to * 2 * sizeof(SSumLR[0]));
spu.pS += ns_to * 2;
}
else
for (ns = 0; ns < ns_to * 2; )
{
d = SSumLR[ns]; SSumLR[ns] = 0;
- d = d * volmult >> 10;
+ d = d * vol_l >> 14;
ssat32_to_16(d);
*spu.pS++ = d;
ns++;
d = SSumLR[ns]; SSumLR[ns] = 0;
- d = d * volmult >> 10;
+ d = d * vol_r >> 14;
ssat32_to_16(d);
*spu.pS++ = d;
ns++;
// XA AUDIO
-void CALLBACK SPUplayADPCMchannel(xa_decode_t *xap)
+void CALLBACK SPUplayADPCMchannel(xa_decode_t *xap, unsigned int cycle, int is_start)
{
if(!xap) return;
- if(!xap->freq) return; // no xa freq ? bye
+ if(!xap->freq) return; // no xa freq ? bye
+
+ if (is_start)
+ do_samples(cycle, 1); // catch up to prevent source underflows later
- FeedXA(xap); // call main XA feeder
+ FeedXA(xap); // call main XA feeder
}
// CDDA AUDIO
-int CALLBACK SPUplayCDDAchannel(short *pcm, int nbytes)
+int CALLBACK SPUplayCDDAchannel(short *pcm, int nbytes, unsigned int cycle, int is_start)
{
if (!pcm) return -1;
if (nbytes<=0) return -1;
+ if (is_start)
+ do_samples(cycle, 1); // catch up to prevent source underflows later
+
return FeedCDDA((unsigned char *)pcm, nbytes);
}