#define _IN_SPU
#include "externals.h"
+#include "registers.h"
#include "cfg.h"
#include "dsoundoss.h"
#include "regs.h"
int iRecordMode=0;
int iUseReverb=2;
int iUseInterpolation=2;
-int iDisStereo=0;
// MAIN infos struct for each channel
unsigned long dwNewChannel=0; // flags for faster testing, if new channel starts
unsigned long dwChannelOn=0;
+unsigned long dwPendingChanOff=0;
void (CALLBACK *irqCallback)(void)=0; // func of main emu, called on spu irq
void (CALLBACK *cddavCallback)(unsigned short,unsigned short)=0;
{ 115, -52 },
{ 98, -55 },
{ 122, -60 } };
-int SSumR[NSSIZE];
-int SSumL[NSSIZE];
+int ChanBuf[NSSIZE];
+int SSumLR[NSSIZE*2];
int iFMod[NSSIZE];
int iCycle = 0;
short * pS;
return fa;
}
+static void do_irq(void)
+{
+ if(!(spuStat & STAT_IRQ))
+ {
+ spuStat |= STAT_IRQ;
+ if(irqCallback) irqCallback();
+ }
+}
+
+static int decode_block(int ch)
+{
+ unsigned char *start;
+ unsigned int nSample;
+ int predict_nr,shift_factor,flags,d,s;
+ int fa,s_1,s_2;
+ int ret = 0;
+
+ s_chan[ch].iSBPos=0;
+
+ start=s_chan[ch].pCurr; // set up the current pos
+ if(start == (unsigned char*)-1 || // special "stop" sign
+ (dwPendingChanOff&(1<<ch)))
+ {
+ dwChannelOn&=~(1<<ch); // -> turn everything off
+ dwPendingChanOff&=~(1<<ch);
+ s_chan[ch].bStop=1;
+ s_chan[ch].ADSRX.EnvelopeVol=0;
+ return 0; // -> and done for this channel
+ }
+
+ //////////////////////////////////////////// irq check
+
+ if(spuCtrl&CTRL_IRQ)
+ {
+ if(pSpuIrq == start) // irq address reached?
+ {
+ do_irq(); // -> call main emu
+ ret = 1;
+ }
+ }
+
+ s_1=s_chan[ch].s_1;
+ s_2=s_chan[ch].s_2;
+
+ predict_nr=(int)*start;start++;
+ shift_factor=predict_nr&0xf;
+ predict_nr >>= 4;
+ flags=(int)*start;start++;
+
+ // -------------------------------------- //
+
+ for (nSample=0;nSample<28;start++)
+ {
+ d=(int)*start;
+ s=((d&0xf)<<12);
+ if(s&0x8000) s|=0xffff0000;
+
+ fa=(s >> shift_factor);
+ fa=fa + ((s_1 * f[predict_nr][0])>>6) + ((s_2 * f[predict_nr][1])>>6);
+ s_2=s_1;s_1=fa;
+ s=((d & 0xf0) << 8);
+
+ s_chan[ch].SB[nSample++]=fa;
+
+ if(s&0x8000) s|=0xffff0000;
+ fa=(s>>shift_factor);
+ fa=fa + ((s_1 * f[predict_nr][0])>>6) + ((s_2 * f[predict_nr][1])>>6);
+ s_2=s_1;s_1=fa;
+
+ s_chan[ch].SB[nSample++]=fa;
+ }
+
+ //////////////////////////////////////////// flag handler
+
+ if((flags&4) && (!s_chan[ch].bIgnoreLoop))
+ s_chan[ch].pLoop=start-16; // loop adress
+
+ if(flags&1) // 1: stop/loop
+ {
+ if(!(flags&2))
+ dwPendingChanOff|=1<<ch;
+
+ start = s_chan[ch].pLoop;
+ }
+
+ if (start - spuMemC >= 0x80000)
+ start = (unsigned char*)-1;
+
+ s_chan[ch].pCurr=start; // store values for next cycle
+ s_chan[ch].s_1=s_1;
+ s_chan[ch].s_2=s_2;
+
+ return ret;
+}
+
////////////////////////////////////////////////////////////////////////
// MAIN SPU FUNCTION
// here is the main job handler... thread, timer or direct func call
static void *MAINThread(void *arg)
{
- int s_1,s_2,fa,ns,ns_from,ns_to;
+ int fa,ns,ns_from,ns_to;
#if !defined(_MACOSX) && !defined(__arm__)
int voldiv = iVolume;
#else
const int voldiv = 2;
#endif
- unsigned char * start;unsigned int nSample;
- int ch,predict_nr,shift_factor,flags,d,s;
+ int ch,d;
int bIRQReturn=0;
while(!bEndThread) // until we are shutting down
ch=0;
if(lastch>=0) // will be -1 if no continue is pending
{
- ch=lastch; ns_from=lastns+1; lastch=-1; // -> setup all kind of vars to continue
+ ch=lastch; ns_from=lastns; lastch=-1; // -> setup all kind of vars to continue
}
//--------------------------------------------------//
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
FModChangeFrequency(ch,ns);
{
if(s_chan[ch].iSBPos==28) // 28 reached?
{
- start=s_chan[ch].pCurr; // set up the current pos
-
- if (start == (unsigned char*)-1) // special "stop" sign
- {
- dwChannelOn&=~(1<<ch); // -> turn everything off
- s_chan[ch].ADSRX.EnvelopeVol=0;
- goto ENDX; // -> and done for this channel
- }
-
- s_chan[ch].iSBPos=0;
-
- //////////////////////////////////////////// spu irq handler here? mmm... do it later
-
- s_1=s_chan[ch].s_1;
- s_2=s_chan[ch].s_2;
-
- predict_nr=(int)*start;start++;
- shift_factor=predict_nr&0xf;
- predict_nr >>= 4;
- flags=(int)*start;start++;
-
- // -------------------------------------- //
-
- for (nSample=0;nSample<28;start++)
- {
- d=(int)*start;
- s=((d&0xf)<<12);
- if(s&0x8000) s|=0xffff0000;
-
- fa=(s >> shift_factor);
- fa=fa + ((s_1 * f[predict_nr][0])>>6) + ((s_2 * f[predict_nr][1])>>6);
- s_2=s_1;s_1=fa;
- s=((d & 0xf0) << 8);
-
- s_chan[ch].SB[nSample++]=fa;
-
- if(s&0x8000) s|=0xffff0000;
- fa=(s>>shift_factor);
- fa=fa + ((s_1 * f[predict_nr][0])>>6) + ((s_2 * f[predict_nr][1])>>6);
- s_2=s_1;s_1=fa;
-
- s_chan[ch].SB[nSample++]=fa;
- }
-
- //////////////////////////////////////////// irq check
-
- if(irqCallback && (spuCtrl&0x40)) // some callback and irq active?
+ d = decode_block(ch);
+ if(d && iSPUIRQWait) // -> option: wait after irq for main emu
{
- if((pSpuIrq > start-16 && // irq address reached?
- pSpuIrq <= start) ||
- ((flags&1) && // special: irq on looping addr, when stop/loop flag is set
- (pSpuIrq > s_chan[ch].pLoop-16 &&
- pSpuIrq <= s_chan[ch].pLoop)))
- {
- irqCallback(); // -> call main emu
-
- if(iSPUIRQWait) // -> option: wait after irq for main emu
- {
- iSpuAsyncWait=1;
- bIRQReturn=1;
- lastch=ch;
- lastns=ns;
- ns_to=ns+1;
- }
- }
+ bIRQReturn=1;
+ lastch=ch;
+ lastns=ns_to=ns;
+ goto ENDX; // do remaining chans unil this ns
}
-
- //////////////////////////////////////////// flag handler
-
- if((flags&4) && (!s_chan[ch].bIgnoreLoop))
- s_chan[ch].pLoop=start-16; // loop adress
-
- if(flags&1) // 1: stop/loop
- {
- // We play this block out first...
- //if(!(flags&2)) // 1+2: do loop... otherwise: stop
- if(flags!=3 || s_chan[ch].pLoop==NULL) // PETE: if we don't check exactly for 3, loop hang ups will happen (DQ4, for example)
- { // and checking if pLoop is set avoids crashes, yeah
- start = (unsigned char*)-1;
- }
- else
- {
- start = s_chan[ch].pLoop;
- }
- }
-
- s_chan[ch].pCurr=start; // store values for next cycle
- s_chan[ch].s_1=s_1;
- s_chan[ch].s_2=s_2;
}
fa=s_chan[ch].SB[s_chan[ch].iSBPos++]; // get sample data
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) / 1023; // 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)
- SSumL[ns]+=(sval*s_chan[ch].iLeftVolume)/0x4000L;
- SSumR[ns]+=(sval*s_chan[ch].iRightVolume)/0x4000L;
+ SSumLR[ns*2] +=(sval*s_chan[ch].iLeftVolume)/0x4000L;
+ SSumLR[ns*2+1]+=(sval*s_chan[ch].iRightVolume)/0x4000L;
//////////////////////////////////////////////
// now let us store sound data for reverb
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) // special return for "spu irq - wait for cpu action"
+ if(bIRQReturn && iSPUIRQWait) // special return for "spu irq - wait for cpu action"
{
+ iSpuAsyncWait=1;
bIRQReturn=0;
if(iUseTimer!=2)
{
///////////////////////////////////////////////////////
// mix all channels (including reverb) into one buffer
- if(iDisStereo) // no stereo?
+ for (ns = 0; ns < NSSIZE*2; )
{
- int dl, dr;
- for (ns = 0; ns < NSSIZE; ns++)
- {
- SSumL[ns] += MixREVERBLeft(ns);
+ SSumLR[ns] += MixREVERBLeft(ns/2);
- dl = SSumL[ns] / voldiv; SSumL[ns] = 0;
- if (dl < -32767) dl = -32767; if (dl > 32767) dl = 32767;
-
- SSumR[ns] += MixREVERBRight();
-
- dr = SSumR[ns] / voldiv; SSumR[ns] = 0;
- if (dr < -32767) dr = -32767; if (dr > 32767) dr = 32767;
- *pS++ = (dl + dr) / 2;
- }
- }
- else // stereo:
- for (ns = 0; ns < NSSIZE; ns++)
- {
- SSumL[ns] += MixREVERBLeft(ns);
-
- d = SSumL[ns] / voldiv; SSumL[ns] = 0;
+ d = SSumLR[ns] / voldiv; SSumLR[ns] = 0;
if (d < -32767) d = -32767; if (d > 32767) d = 32767;
*pS++ = d;
+ ns++;
- SSumR[ns] += MixREVERBRight();
+ SSumLR[ns] += MixREVERBRight();
- d = SSumR[ns] / voldiv; SSumR[ns] = 0;
+ d = SSumLR[ns] / voldiv; SSumLR[ns] = 0;
if(d < -32767) d = -32767; if(d > 32767) d = 32767;
*pS++ = d;
+ ns++;
}
//////////////////////////////////////////////////////
// an IRQ. Only problem: the "wait for cpu" option is kinda hard to do here
// in some of Peops timer modes. So: we ignore this option here (for now).
- if(pMixIrq && irqCallback)
+ if(pMixIrq)
{
for(ns=0;ns<NSSIZE;ns++)
{
for(ch=0;ch<4;ch++)
{
if(pSpuIrq>=pMixIrq+(ch*0x400) && pSpuIrq<pMixIrq+(ch*0x400)+2)
- irqCallback();
+ do_irq();
}
}
pMixIrq+=2;if(pMixIrq>spuMemC+0x3ff) pMixIrq=spuMemC;
// SETUPTIMER: init of certain buffers and threads/timers
void SetupTimer(void)
{
- memset(SSumR,0,NSSIZE*sizeof(int)); // init some mixing buffers
- memset(SSumL,0,NSSIZE*sizeof(int));
+ memset(SSumLR,0,sizeof(SSumLR)); // init some mixing buffers
memset(iFMod,0,NSSIZE*sizeof(int));
pS=(short *)pSpuBuffer; // setup soundbuffer pointer
(uint32_t *)malloc(16384 * sizeof(uint32_t));
CDDAEnd = CDDAStart + 16384;
CDDAPlay = CDDAStart;
- CDDAFeed = CDDAStart + 1;
+ CDDAFeed = CDDAStart;
for(i=0;i<MAXCHAN;i++) // loop sound channels
{
}
*/
+// 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
notaz.gp2x.de / pcsx_rearmed.git / blobdiff