copyright : (C) 2002 by Pete Bernert
email : BlackDove@addcom.de
- Portions (C) Gražvydas "notaz" Ignotas, 2010-2011
+ Portions (C) Gražvydas "notaz" Ignotas, 2010-2012,2014,2015
***************************************************************************/
/***************************************************************************
#include "externals.h"
#include "registers.h"
-#include "cfg.h"
-#include "dsoundoss.h"
-#include "regs.h"
-
-#ifdef ENABLE_NLS
-#include <libintl.h>
-#include <locale.h>
-#define _(x) gettext(x)
-#define N_(x) (x)
-#else
-#define _(x) (x)
-#define N_(x) (x)
-#endif
+#include "out.h"
+#include "spu_config.h"
#ifdef __arm__
+#include "arm_features.h"
+#endif
+
+#ifdef HAVE_ARMV7
#define ssat32_to_16(v) \
asm("ssat %0,#16,%1" : "=r" (v) : "r" (v))
#else
} while (0)
#endif
+#define PSXCLK 33868800 /* 33.8688 MHz */
+
+// intended to be ~1 frame
+#define IRQ_NEAR_BLOCKS 32
+
/*
#if defined (USEMACOSX)
static char * libraryName = N_("Mac OS X Sound");
// globals
-// psx buffer / addresses
-
-unsigned short regArea[10000];
-unsigned short spuMem[256*1024];
-unsigned char * spuMemC;
-unsigned char * pSpuIrq=0;
-unsigned char * pSpuBuffer;
-unsigned char * pMixIrq=0;
-
-// user settings
-
-int iVolume=768; // 1024 is 1.0
-int iXAPitch=1;
-int iUseTimer=2;
-int iSPUIRQWait=1;
-int iDebugMode=0;
-int iRecordMode=0;
-int iUseReverb=2;
-int iUseInterpolation=2;
-
-// MAIN infos struct for each channel
-
-SPUCHAN s_chan[MAXCHAN+1]; // channel + 1 infos (1 is security for fmod handling)
-REVERBInfo rvb;
-
-unsigned int dwNoiseVal; // global noise generator
-unsigned int dwNoiseCount;
-int iSpuAsyncWait=0;
-
-unsigned short spuCtrl=0; // some vars to store psx reg infos
-unsigned short spuStat=0;
-unsigned short spuIrq=0;
-unsigned long spuAddr=0xffffffff; // address into spu mem
-int bEndThread=0; // thread handlers
-int bThreadEnded=0;
-int bSpuInit=0;
-int bSPUIsOpen=0;
-
-static pthread_t thread = (pthread_t)-1; // thread id (linux)
-
-unsigned int dwNewChannel=0; // flags for faster testing, if new channel starts
-unsigned int dwChannelOn=0; // not silent channels
-unsigned int dwPendingChanOff=0;
-unsigned int dwChannelDead=0; // silent+not useful channels
-
-void (CALLBACK *irqCallback)(void)=0; // func of main emu, called on spu irq
-void (CALLBACK *cddavCallback)(unsigned short,unsigned short)=0;
-
-// certain globals (were local before, but with the new timeproc I need em global)
-
-static const int f[8][2] = { { 0, 0 },
- { 60, 0 },
- { 115, -52 },
- { 98, -55 },
- { 122, -60 } };
-int ChanBuf[NSSIZE+3];
-int SSumLR[(NSSIZE+3)*2];
-int iFMod[NSSIZE];
-int iCycle = 0;
-short * pS;
-
-int lastch=-1; // last channel processed on spu irq in timer mode
-static int lastns=0; // last ns pos
-static int iSecureStart=0; // secure start counter
+SPUInfo spu;
+SPUConfig spu_config;
+
+static int iFMod[NSSIZE];
+static int RVB[NSSIZE * 2];
+int ChanBuf[NSSIZE];
+
+#define CDDA_BUFFER_SIZE (16384 * sizeof(uint32_t)) // must be power of 2
////////////////////////////////////////////////////////////////////////
// CODE AREA
// /
//
-
-INLINE void InterpolateUp(int ch)
+static void InterpolateUp(int *SB, int sinc)
{
- if(s_chan[ch].SB[32]==1) // flag == 1? calc step and set flag... and don't change the value in this pass
+ if(SB[32]==1) // flag == 1? calc step and set flag... and don't change the value in this pass
{
- const int id1=s_chan[ch].SB[30]-s_chan[ch].SB[29]; // curr delta to next val
- const int id2=s_chan[ch].SB[31]-s_chan[ch].SB[30]; // and next delta to next-next val :)
+ const int id1=SB[30]-SB[29]; // curr delta to next val
+ const int id2=SB[31]-SB[30]; // and next delta to next-next val :)
- s_chan[ch].SB[32]=0;
+ SB[32]=0;
if(id1>0) // curr delta positive
{
if(id2<id1)
- {s_chan[ch].SB[28]=id1;s_chan[ch].SB[32]=2;}
+ {SB[28]=id1;SB[32]=2;}
else
if(id2<(id1<<1))
- s_chan[ch].SB[28]=(id1*s_chan[ch].sinc)/0x10000L;
+ SB[28]=(id1*sinc)>>16;
else
- s_chan[ch].SB[28]=(id1*s_chan[ch].sinc)/0x20000L;
+ SB[28]=(id1*sinc)>>17;
}
else // curr delta negative
{
if(id2>id1)
- {s_chan[ch].SB[28]=id1;s_chan[ch].SB[32]=2;}
+ {SB[28]=id1;SB[32]=2;}
else
if(id2>(id1<<1))
- s_chan[ch].SB[28]=(id1*s_chan[ch].sinc)/0x10000L;
+ SB[28]=(id1*sinc)>>16;
else
- s_chan[ch].SB[28]=(id1*s_chan[ch].sinc)/0x20000L;
+ SB[28]=(id1*sinc)>>17;
}
}
else
- if(s_chan[ch].SB[32]==2) // flag 1: calc step and set flag... and don't change the value in this pass
+ if(SB[32]==2) // flag 1: calc step and set flag... and don't change the value in this pass
{
- s_chan[ch].SB[32]=0;
+ SB[32]=0;
- s_chan[ch].SB[28]=(s_chan[ch].SB[28]*s_chan[ch].sinc)/0x20000L;
- if(s_chan[ch].sinc<=0x8000)
- s_chan[ch].SB[29]=s_chan[ch].SB[30]-(s_chan[ch].SB[28]*((0x10000/s_chan[ch].sinc)-1));
- else s_chan[ch].SB[29]+=s_chan[ch].SB[28];
+ SB[28]=(SB[28]*sinc)>>17;
+ //if(sinc<=0x8000)
+ // SB[29]=SB[30]-(SB[28]*((0x10000/sinc)-1));
+ //else
+ SB[29]+=SB[28];
}
else // no flags? add bigger val (if possible), calc smaller step, set flag1
- s_chan[ch].SB[29]+=s_chan[ch].SB[28];
+ SB[29]+=SB[28];
}
//
// even easier interpolation on downsampling, also no special filter, again just "Pete's common sense" tm
//
-INLINE void InterpolateDown(int ch)
+static void InterpolateDown(int *SB, int sinc)
{
- if(s_chan[ch].sinc>=0x20000L) // we would skip at least one val?
+ if(sinc>=0x20000L) // we would skip at least one val?
{
- s_chan[ch].SB[29]+=(s_chan[ch].SB[30]-s_chan[ch].SB[29])/2; // add easy weight
- if(s_chan[ch].sinc>=0x30000L) // we would skip even more vals?
- s_chan[ch].SB[29]+=(s_chan[ch].SB[31]-s_chan[ch].SB[30])/2;// add additional next weight
+ SB[29]+=(SB[30]-SB[29])/2; // add easy weight
+ if(sinc>=0x30000L) // we would skip even more vals?
+ SB[29]+=(SB[31]-SB[30])/2; // add additional next weight
}
}
////////////////////////////////////////////////////////////////////////
// helpers for gauss interpolation
-#define gval0 (((short*)(&s_chan[ch].SB[29]))[gpos])
-#define gval(x) (((short*)(&s_chan[ch].SB[29]))[(gpos+x)&3])
+#define gval0 (((short*)(&SB[29]))[gpos&3])
+#define gval(x) ((int)((short*)(&SB[29]))[(gpos+x)&3])
#include "gauss_i.h"
#include "xa.c"
+static void do_irq(void)
+{
+ //if(!(spu.spuStat & STAT_IRQ))
+ {
+ spu.spuStat |= STAT_IRQ; // asserted status?
+ if(spu.irqCallback) spu.irqCallback();
+ }
+}
+
+static int check_irq(int ch, unsigned char *pos)
+{
+ 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 1;
+ }
+ 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
////////////////////////////////////////////////////////////////////////
-INLINE void StartSound(int ch)
+static void StartSoundSB(int *SB)
{
- StartADSR(ch);
- StartREVERB(ch);
+ SB[26]=0; // init mixing vars
+ SB[27]=0;
+
+ SB[28]=0;
+ SB[29]=0; // init our interpolation helpers
+ SB[30]=0;
+ SB[31]=0;
+}
- // fussy timing issues - do in VoiceOn
- //s_chan[ch].pCurr=s_chan[ch].pStart; // set sample start
- //s_chan[ch].bStop=0;
- //s_chan[ch].bOn=1;
+static void StartSoundMain(int ch)
+{
+ SPUCHAN *s_chan = &spu.s_chan[ch];
- s_chan[ch].SB[26]=0; // init mixing vars
- s_chan[ch].SB[27]=0;
- s_chan[ch].iSBPos=28;
+ StartADSR(ch);
+ StartREVERB(ch);
- s_chan[ch].SB[29]=0; // init our interpolation helpers
- s_chan[ch].SB[30]=0;
+ s_chan->prevflags=2;
+ s_chan->iSBPos=27;
+ s_chan->spos=0;
- if(iUseInterpolation>=2) // gauss interpolation?
- {s_chan[ch].spos=0x30000L;s_chan[ch].SB[28]=0;} // -> start with more decoding
- else {s_chan[ch].spos=0x10000L;s_chan[ch].SB[31]=0;} // -> no/simple interpolation starts with one 44100 decoding
+ s_chan->pCurr = spu.spuMemC + ((regAreaGetCh(ch, 6) & ~1) << 3);
- dwNewChannel&=~(1<<ch); // clear new channel bit
+ spu.dwNewChannel&=~(1<<ch); // clear new channel bit
+ spu.dwChannelDead&=~(1<<ch);
+ spu.dwChannelsAudible|=1<<ch;
}
-////////////////////////////////////////////////////////////////////////
-// ALL KIND OF HELPERS
-////////////////////////////////////////////////////////////////////////
-
-INLINE void VoiceChangeFrequency(int ch)
+static void StartSound(int ch)
{
- s_chan[ch].iUsedFreq=s_chan[ch].iActFreq; // -> take it and calc steps
- s_chan[ch].sinc=s_chan[ch].iRawPitch<<4;
- if(!s_chan[ch].sinc) s_chan[ch].sinc=1;
- if(iUseInterpolation==1) s_chan[ch].SB[32]=1; // -> freq change in simle imterpolation mode: set flag
+ StartSoundMain(ch);
+ StartSoundSB(spu.SB + ch * SB_SIZE);
}
+////////////////////////////////////////////////////////////////////////
+// ALL KIND OF HELPERS
////////////////////////////////////////////////////////////////////////
-INLINE int FModChangeFrequency(int ch,int ns)
+INLINE int FModChangeFrequency(int *SB, int pitch, int ns)
{
- int NP=s_chan[ch].iRawPitch;
+ unsigned int NP=pitch;
int sinc;
- NP=((32768L+iFMod[ns])*NP)/32768L;
+ NP=((32768L+iFMod[ns])*NP)>>15;
if(NP>0x3fff) NP=0x3fff;
if(NP<0x1) NP=0x1;
- NP=(44100L*NP)/(4096L); // calc frequency
-
- s_chan[ch].iActFreq=NP;
- s_chan[ch].iUsedFreq=NP;
- sinc=(((NP/10)<<16)/4410);
- if(!sinc) sinc=1;
- if(iUseInterpolation==1) // freq change in simple interpolation mode
- s_chan[ch].SB[32]=1;
+ sinc=NP<<4; // calc frequency
iFMod[ns]=0;
+ SB[32]=1; // reset interpolation
return sinc;
}
////////////////////////////////////////////////////////////////////////
-INLINE void StoreInterpolationVal(int ch,int fa)
+INLINE void StoreInterpolationVal(int *SB, int sinc, int fa, int fmod_freq)
{
- if(s_chan[ch].bFMod==2) // fmod freq channel
- s_chan[ch].SB[29]=fa;
+ if(fmod_freq) // fmod freq channel
+ SB[29]=fa;
else
{
ssat32_to_16(fa);
- if(iUseInterpolation>=2) // gauss/cubic interpolation
- {
- int gpos = s_chan[ch].SB[28];
- gval0 = fa;
+ if(spu_config.iUseInterpolation>=2) // gauss/cubic interpolation
+ {
+ int gpos = SB[28];
+ gval0 = fa;
gpos = (gpos+1) & 3;
- s_chan[ch].SB[28] = gpos;
+ SB[28] = gpos;
}
else
- if(iUseInterpolation==1) // simple interpolation
+ if(spu_config.iUseInterpolation==1) // simple interpolation
{
- s_chan[ch].SB[28] = 0;
- s_chan[ch].SB[29] = s_chan[ch].SB[30]; // -> helpers for simple linear interpolation: delay real val for two slots, and calc the two deltas, for a 'look at the future behaviour'
- s_chan[ch].SB[30] = s_chan[ch].SB[31];
- s_chan[ch].SB[31] = fa;
- s_chan[ch].SB[32] = 1; // -> flag: calc new interolation
+ SB[28] = 0;
+ SB[29] = SB[30]; // -> helpers for simple linear interpolation: delay real val for two slots, and calc the two deltas, for a 'look at the future behaviour'
+ SB[30] = SB[31];
+ SB[31] = fa;
+ SB[32] = 1; // -> flag: calc new interolation
}
- else s_chan[ch].SB[29]=fa; // no interpolation
+ else SB[29]=fa; // no interpolation
}
}
////////////////////////////////////////////////////////////////////////
-INLINE int iGetInterpolationVal(int ch)
+INLINE int iGetInterpolationVal(int *SB, int sinc, int spos, int fmod_freq)
{
int fa;
- if(s_chan[ch].bFMod==2) return s_chan[ch].SB[29];
+ if(fmod_freq) return SB[29];
- switch(iUseInterpolation)
- {
+ switch(spu_config.iUseInterpolation)
+ {
//--------------------------------------------------//
case 3: // cubic interpolation
{
long xd;int gpos;
- xd = ((s_chan[ch].spos) >> 1)+1;
- gpos = s_chan[ch].SB[28];
+ xd = (spos >> 1)+1;
+ gpos = SB[28];
fa = gval(3) - 3*gval(2) + 3*gval(1) - gval0;
fa *= (xd - (2<<15)) / 6;
case 2: // gauss interpolation
{
int vl, vr;int gpos;
- vl = (s_chan[ch].spos >> 6) & ~3;
- gpos = s_chan[ch].SB[28];
- vr=(gauss[vl]*gval0)&~2047;
- vr+=(gauss[vl+1]*gval(1))&~2047;
- vr+=(gauss[vl+2]*gval(2))&~2047;
- vr+=(gauss[vl+3]*gval(3))&~2047;
- fa = vr>>11;
+ vl = (spos >> 6) & ~3;
+ gpos = SB[28];
+ vr=(gauss[vl]*(int)gval0) >> 15;
+ vr+=(gauss[vl+1]*gval(1)) >> 15;
+ vr+=(gauss[vl+2]*gval(2)) >> 15;
+ vr+=(gauss[vl+3]*gval(3)) >> 15;
+ fa = vr;
} break;
//--------------------------------------------------//
case 1: // simple interpolation
{
- if(s_chan[ch].sinc<0x10000L) // -> upsampling?
- InterpolateUp(ch); // --> interpolate up
- else InterpolateDown(ch); // --> else down
- fa=s_chan[ch].SB[29];
+ if(sinc<0x10000L) // -> upsampling?
+ InterpolateUp(SB, sinc); // --> interpolate up
+ else InterpolateDown(SB, sinc); // --> else down
+ fa=SB[29];
} break;
//--------------------------------------------------//
default: // no interpolation
{
- fa=s_chan[ch].SB[29];
+ fa=SB[29];
} break;
//--------------------------------------------------//
}
return fa;
}
-static void do_irq(void)
-{
- if(!(spuStat & STAT_IRQ))
- {
- spuStat |= STAT_IRQ;
- if(irqCallback) irqCallback();
- }
-}
-
static void decode_block_data(int *dest, const unsigned char *src, int predict_nr, int shift_factor)
{
+ static const int f[16][2] = {
+ { 0, 0 },
+ { 60, 0 },
+ { 115, -52 },
+ { 98, -55 },
+ { 122, -60 }
+ };
int nSample;
int fa, s_1, s_2, d, s;
}
}
-static int decode_block(int ch)
+static int decode_block(void *unused, int ch, int *SB)
{
+ SPUCHAN *s_chan = &spu.s_chan[ch];
unsigned char *start;
- int predict_nr,shift_factor,flags;
+ int predict_nr, shift_factor, flags;
int ret = 0;
- start=s_chan[ch].pCurr; // set up the current pos
- if(dwPendingChanOff&(1<<ch))
- {
- dwChannelOn&=~(1<<ch); // -> turn everything off
- dwPendingChanOff&=~(1<<ch);
- s_chan[ch].bStop=1;
- s_chan[ch].ADSRX.EnvelopeVol=0;
- }
-
- //////////////////////////////////////////// irq check
+ start = s_chan->pCurr; // set up the current pos
+ if (start == spu.spuMemC) // ?
+ ret = 1;
- if(spuCtrl&CTRL_IRQ)
+ if (s_chan->prevflags & 1) // 1: stop/loop
{
- if(pSpuIrq == start) // irq address reached?
- {
- do_irq(); // -> call main emu
+ if (!(s_chan->prevflags & 2))
ret = 1;
- }
+
+ start = s_chan->pLoop;
}
- predict_nr=(int)start[0];
- shift_factor=predict_nr&0xf;
+ check_irq(ch, start);
+
+ predict_nr = start[0];
+ shift_factor = predict_nr & 0xf;
predict_nr >>= 4;
- decode_block_data(s_chan[ch].SB, start + 2, predict_nr, shift_factor);
+ decode_block_data(SB, start + 2, predict_nr, shift_factor);
- //////////////////////////////////////////// flag handler
+ flags = start[1];
+ if (flags & 4 && !s_chan->bIgnoreLoop)
+ s_chan->pLoop = start; // loop adress
- flags=(int)start[1];
- if(flags&4)
- s_chan[ch].pLoop=start; // loop adress
+ start += 16;
- start+=16;
- if(flags&1) // 1: stop/loop
- {
- if(!(flags&2))
- dwPendingChanOff|=1<<ch;
-
- start = s_chan[ch].pLoop;
- }
-
- if (start - spuMemC >= 0x80000) {
- // most likely wrong
- start = spuMemC;
- printf("ch%d oflow\n", ch);
- }
-
- s_chan[ch].pCurr = start; // store values for next cycle
+ s_chan->pCurr = start; // store values for next cycle
+ s_chan->prevflags = flags;
return ret;
}
// do block, but ignore sample data
static int skip_block(int ch)
{
- unsigned char *start = s_chan[ch].pCurr;
- int flags = start[1];
+ SPUCHAN *s_chan = &spu.s_chan[ch];
+ unsigned char *start = s_chan->pCurr;
+ int flags;
int ret = 0;
- // Tron Bonne hack, probably wrong (could be wrong memory contents..)
- if(flags & ~7) flags = 0;
+ if (s_chan->prevflags & 1) {
+ if (!(s_chan->prevflags & 2))
+ ret = 1;
- if(start == pSpuIrq)
- {
- do_irq();
- ret = 1;
+ start = s_chan->pLoop;
}
- if(flags & 4)
- s_chan[ch].pLoop=start;
+ check_irq(ch, start);
+
+ flags = start[1];
+ if (flags & 4 && !s_chan->bIgnoreLoop)
+ s_chan->pLoop = start;
- s_chan[ch].pCurr += 16;
+ start += 16;
- if(flags & 1)
- s_chan[ch].pCurr = s_chan[ch].pLoop;
+ s_chan->pCurr = start;
+ s_chan->prevflags = flags;
return ret;
}
+// if irq is going to trigger sooner than in upd_samples, set upd_samples
+static void scan_for_irq(int ch, unsigned int *upd_samples)
+{
+ SPUCHAN *s_chan = &spu.s_chan[ch];
+ int pos, sinc, sinc_inv, end;
+ unsigned char *block;
+ int flags;
+
+ block = s_chan->pCurr;
+ pos = s_chan->spos;
+ sinc = s_chan->sinc;
+ end = pos + *upd_samples * sinc;
+ if (s_chan->prevflags & 1) // 1: stop/loop
+ block = s_chan->pLoop;
+
+ pos += (28 - s_chan->iSBPos) << 16;
+ while (pos < end)
+ {
+ if (block == spu.pSpuIrq)
+ break;
+ flags = block[1];
+ block += 16;
+ if (flags & 1) { // 1: stop/loop
+ block = s_chan->pLoop;
+ }
+ pos += 28 << 16;
+ }
+
+ if (pos < end)
+ {
+ sinc_inv = s_chan->sinc_inv;
+ if (sinc_inv == 0)
+ sinc_inv = s_chan->sinc_inv = (0x80000000u / (uint32_t)sinc) << 1;
+
+ pos -= s_chan->spos;
+ *upd_samples = (((uint64_t)pos * sinc_inv) >> 32) + 1;
+ //xprintf("ch%02d: irq sched: %3d %03d\n",
+ // ch, *upd_samples, *upd_samples * 60 * 263 / 44100);
+ }
+}
+
#define make_do_samples(name, fmod_code, interp_start, interp1_code, interp2_code, interp_end) \
-static int do_samples_##name(int ch, int ns, int ns_to) \
+static noinline int do_samples_##name( \
+ int (*decode_f)(void *context, int ch, int *SB), void *ctx, \
+ int ch, int ns_to, int *SB, int sinc, int *spos, int *sbpos) \
{ \
- int sinc = s_chan[ch].sinc; \
- int spos = s_chan[ch].spos; \
- int sbpos = s_chan[ch].iSBPos; \
- int *SB = s_chan[ch].SB; \
- int ret = -1; \
- int d, fa; \
+ int ns, d, fa; \
+ int ret = ns_to; \
interp_start; \
\
- for (; ns < ns_to; ns++) \
+ for (ns = 0; ns < ns_to; ns++) \
{ \
fmod_code; \
\
- while (spos >= 0x10000) \
+ *spos += sinc; \
+ while (*spos >= 0x10000) \
{ \
- if(sbpos == 28) \
+ fa = SB[(*sbpos)++]; \
+ if (*sbpos >= 28) \
{ \
- sbpos = 0; \
- d = decode_block(ch); \
- if(d && iSPUIRQWait) \
- { \
+ *sbpos = 0; \
+ d = decode_f(ctx, ch, SB); \
+ if (d && ns < ret) \
ret = ns; \
- goto out; \
- } \
} \
\
- fa = SB[sbpos++]; \
interp1_code; \
- spos -= 0x10000; \
+ *spos -= 0x10000; \
} \
\
interp2_code; \
- spos += sinc; \
} \
\
-out: \
- s_chan[ch].sinc = sinc; \
- s_chan[ch].spos = spos; \
- s_chan[ch].iSBPos = sbpos; \
interp_end; \
\
return ret; \
}
#define fmod_recv_check \
- if(s_chan[ch].bFMod==1 && iFMod[ns]) \
- sinc = FModChangeFrequency(ch,ns)
+ if(spu.s_chan[ch].bFMod==1 && iFMod[ns]) \
+ sinc = FModChangeFrequency(SB, spu.s_chan[ch].iRawPitch, ns)
make_do_samples(default, fmod_recv_check, ,
- StoreInterpolationVal(ch, fa),
- ChanBuf[ns] = iGetInterpolationVal(ch), )
-make_do_samples(noint, , fa = s_chan[ch].SB[29], , ChanBuf[ns] = fa, s_chan[ch].SB[29] = fa)
+ StoreInterpolationVal(SB, sinc, fa, spu.s_chan[ch].bFMod==2),
+ ChanBuf[ns] = iGetInterpolationVal(SB, sinc, *spos, spu.s_chan[ch].bFMod==2), )
+make_do_samples(noint, , fa = SB[29], , ChanBuf[ns] = fa, SB[29] = fa)
#define simple_interp_store \
- s_chan[ch].SB[28] = 0; \
- s_chan[ch].SB[29] = s_chan[ch].SB[30]; \
- s_chan[ch].SB[30] = s_chan[ch].SB[31]; \
- s_chan[ch].SB[31] = fa; \
- s_chan[ch].SB[32] = 1
+ SB[28] = 0; \
+ SB[29] = SB[30]; \
+ SB[30] = SB[31]; \
+ SB[31] = fa; \
+ SB[32] = 1
#define simple_interp_get \
- if(sinc<0x10000) /* -> upsampling? */ \
- InterpolateUp(ch); /* --> interpolate up */ \
- else InterpolateDown(ch); /* --> else down */ \
- ChanBuf[ns] = s_chan[ch].SB[29]
+ if(sinc<0x10000) /* -> upsampling? */ \
+ InterpolateUp(SB, sinc); /* --> interpolate up */ \
+ else InterpolateDown(SB, sinc); /* --> else down */ \
+ ChanBuf[ns] = SB[29]
make_do_samples(simple, , ,
simple_interp_store, simple_interp_get, )
-static int do_samples_noise(int ch, int ns, int ns_to)
+static int do_samples_skip(int ch, int ns_to)
{
- int level, shift, bit;
+ SPUCHAN *s_chan = &spu.s_chan[ch];
+ int spos = s_chan->spos;
+ int sinc = s_chan->sinc;
+ int ret = ns_to, ns, d;
+
+ spos += s_chan->iSBPos << 16;
- s_chan[ch].spos += s_chan[ch].sinc * (ns_to - ns);
- while (s_chan[ch].spos >= 28*0x10000)
+ for (ns = 0; ns < ns_to; ns++)
{
- skip_block(ch);
- s_chan[ch].spos -= 28*0x10000;
+ spos += sinc;
+ while (spos >= 28*0x10000)
+ {
+ d = skip_block(ch);
+ if (d && ns < ret)
+ ret = ns;
+ spos -= 28*0x10000;
+ }
}
+ s_chan->iSBPos = spos >> 16;
+ s_chan->spos = spos & 0xffff;
+
+ return ret;
+}
+
+static void do_lsfr_samples(int ns_to, int ctrl,
+ unsigned int *dwNoiseCount, unsigned int *dwNoiseVal)
+{
+ unsigned int counter = *dwNoiseCount;
+ unsigned int val = *dwNoiseVal;
+ unsigned int level, shift, bit;
+ int ns;
+
// modified from DrHell/shalma, no fraction
- level = (spuCtrl >> 10) & 0x0f;
+ level = (ctrl >> 10) & 0x0f;
level = 0x8000 >> level;
- for (; ns < ns_to; ns++)
+ for (ns = 0; ns < ns_to; ns++)
{
- dwNoiseCount += 2;
- if (dwNoiseCount >= level)
+ counter += 2;
+ if (counter >= level)
{
- dwNoiseCount -= level;
- shift = (dwNoiseVal >> 10) & 0x1f;
+ counter -= level;
+ shift = (val >> 10) & 0x1f;
bit = (0x69696969 >> shift) & 1;
- if (dwNoiseVal & 0x8000)
- bit ^= 1;
- dwNoiseVal = (dwNoiseVal << 1) | bit;
+ bit ^= (val >> 15) & 1;
+ val = (val << 1) | bit;
}
- ChanBuf[ns] = (signed short)dwNoiseVal;
+ ChanBuf[ns] = (signed short)val;
}
- return -1;
+ *dwNoiseCount = counter;
+ *dwNoiseVal = val;
}
-#ifdef __arm__
-// asm code
-extern void mix_chan(int start, int count, int lv, int rv);
-extern void mix_chan_rvb(int start, int count, int lv, int rv);
+static int do_samples_noise(int ch, int ns_to)
+{
+ int ret;
+
+ ret = do_samples_skip(ch, ns_to);
+
+ do_lsfr_samples(ns_to, spu.spuCtrl, &spu.dwNoiseCount, &spu.dwNoiseVal);
+
+ return ret;
+}
+
+#ifdef HAVE_ARMV5
+// asm code; lv and rv must be 0-3fff
+extern void mix_chan(int *SSumLR, int count, int lv, int rv);
+extern void mix_chan_rvb(int *SSumLR, int count, int lv, int rv, int *rvb);
#else
-static void mix_chan(int start, int count, int lv, int rv)
+static void mix_chan(int *SSumLR, int count, int lv, int rv)
{
- int *dst = SSumLR + start * 2;
- const int *src = ChanBuf + start;
+ const int *src = ChanBuf;
int l, r;
while (count--)
l = (sval * lv) >> 14;
r = (sval * rv) >> 14;
- *dst++ += l;
- *dst++ += r;
+ *SSumLR++ += l;
+ *SSumLR++ += r;
}
}
-static void mix_chan_rvb(int start, int count, int lv, int rv)
+static void mix_chan_rvb(int *SSumLR, int count, int lv, int rv, int *rvb)
{
- int *dst = SSumLR + start * 2;
- int *drvb = sRVBStart + start * 2;
- const int *src = ChanBuf + start;
+ const int *src = ChanBuf;
+ int *dst = SSumLR;
+ int *drvb = rvb;
int l, r;
while (count--)
}
#endif
-////////////////////////////////////////////////////////////////////////
-// MAIN SPU FUNCTION
-// here is the main job handler... thread, timer or direct func call
-// basically the whole sound processing is done in this fat func!
-////////////////////////////////////////////////////////////////////////
-
-// 5 ms waiting phase, if buffer is full and no new sound has to get started
-// .. can be made smaller (smallest val: 1 ms), but bigger waits give
-// better performance
+// 0x0800-0x0bff Voice 1
+// 0x0c00-0x0fff Voice 3
+static noinline void do_decode_bufs(unsigned short *mem, int which,
+ int count, int decode_pos)
+{
+ unsigned short *dst = &mem[0x800/2 + which*0x400/2];
+ const int *src = ChanBuf;
+ int cursor = decode_pos;
-#define PAUSE_W 5
-#define PAUSE_L 5000
+ while (count-- > 0)
+ {
+ cursor &= 0x1ff;
+ dst[cursor] = *src++;
+ cursor++;
+ }
-////////////////////////////////////////////////////////////////////////
+ // decode_pos is updated and irqs are checked later, after voice loop
+}
-static void *MAINThread(void *arg)
+static void do_silent_chans(int ns_to, int silentch)
{
- int volmult = iVolume;
- int ns,ns_from,ns_to;
- int ch,d,silentch;
- int bIRQReturn=0;
+ unsigned int mask;
+ SPUCHAN *s_chan;
+ int ch;
- while(!bEndThread) // until we are shutting down
+ mask = silentch & 0xffffff;
+ for (ch = 0; mask != 0; ch++, mask >>= 1)
{
- // ok, at the beginning we are looking if there is
- // enuff free place in the dsound/oss buffer to
- // fill in new data, or if there is a new channel to start.
- // if not, we wait (thread) or return (timer/spuasync)
- // until enuff free place is available/a new channel gets
- // started
-
- if(dwNewChannel) // new channel should start immedately?
- { // (at least one bit 0 ... MAXCHANNEL is set?)
- iSecureStart++; // -> set iSecure
- if(iSecureStart>5) iSecureStart=0; // (if it is set 5 times - that means on 5 tries a new samples has been started - in a row, we will reset it, to give the sound update a chance)
- }
- else iSecureStart=0; // 0: no new channel should start
+ if (!(mask & 1)) continue;
+ if (spu.dwChannelDead & (1<<ch)) continue;
+
+ s_chan = &spu.s_chan[ch];
+ if (s_chan->pCurr > spu.pSpuIrq && s_chan->pLoop > spu.pSpuIrq)
+ continue;
- while(!iSecureStart && !bEndThread && // no new start? no thread end?
- (SoundGetBytesBuffered()>TESTSIZE)) // and still enuff data in sound buffer?
+ s_chan->spos += s_chan->iSBPos << 16;
+ s_chan->iSBPos = 0;
+
+ s_chan->spos += s_chan->sinc * ns_to;
+ while (s_chan->spos >= 28 * 0x10000)
{
- iSecureStart=0; // reset secure
+ unsigned char *start = s_chan->pCurr;
- if(iUseTimer) return 0; // linux no-thread mode? bye
- usleep(PAUSE_L); // else sleep for x ms (linux)
+ skip_block(ch);
+ if (start == s_chan->pCurr || start - spu.spuMemC < 0x1000)
+ {
+ // looping on self or stopped(?)
+ spu.dwChannelDead |= 1<<ch;
+ s_chan->spos = 0;
+ break;
+ }
- if(dwNewChannel) iSecureStart=1; // if a new channel kicks in (or, of course, sound buffer runs low), we will leave the loop
+ s_chan->spos -= 28 * 0x10000;
}
+ }
+}
- //--------------------------------------------------// continue from irq handling in timer mode?
+static void do_channels(int ns_to)
+{
+ unsigned int mask;
+ int do_rvb, ch, d;
+ SPUCHAN *s_chan;
+ int *SB, sinc;
+
+ do_rvb = spu.rvb->StartAddr && spu_config.iUseReverb;
+ if (do_rvb)
+ memset(RVB, 0, ns_to * sizeof(RVB[0]) * 2);
+
+ mask = spu.dwNewChannel & 0xffffff;
+ for (ch = 0; mask != 0; ch++, mask >>= 1) {
+ if (mask & 1)
+ StartSound(ch);
+ }
+
+ mask = spu.dwChannelsAudible & 0xffffff;
+ for (ch = 0; mask != 0; ch++, mask >>= 1) // loop em all...
+ {
+ if (!(mask & 1)) continue; // channel not playing? next
+
+ s_chan = &spu.s_chan[ch];
+ SB = spu.SB + ch * SB_SIZE;
+ sinc = s_chan->sinc;
+ if (spu.s_chan[ch].bNewPitch)
+ SB[32] = 1; // reset interpolation
+ spu.s_chan[ch].bNewPitch = 0;
+
+ if (s_chan->bNoise)
+ d = do_samples_noise(ch, ns_to);
+ else if (s_chan->bFMod == 2
+ || (s_chan->bFMod == 0 && spu_config.iUseInterpolation == 0))
+ d = do_samples_noint(decode_block, NULL, ch, ns_to,
+ SB, sinc, &s_chan->spos, &s_chan->iSBPos);
+ else if (s_chan->bFMod == 0 && spu_config.iUseInterpolation == 1)
+ d = do_samples_simple(decode_block, NULL, ch, ns_to,
+ SB, sinc, &s_chan->spos, &s_chan->iSBPos);
+ else
+ d = do_samples_default(decode_block, NULL, ch, ns_to,
+ SB, sinc, &s_chan->spos, &s_chan->iSBPos);
+
+ d = MixADSR(&s_chan->ADSRX, d);
+ if (d < ns_to) {
+ spu.dwChannelsAudible &= ~(1 << ch);
+ s_chan->ADSRX.State = ADSR_RELEASE;
+ s_chan->ADSRX.EnvelopeVol = 0;
+ memset(&ChanBuf[d], 0, (ns_to - d) * sizeof(ChanBuf[0]));
+ }
- ns_from=0;
- ns_to=NSSIZE;
- ch=0;
- if(lastch>=0) // will be -1 if no continue is pending
+ if (ch == 1 || ch == 3)
{
- ch=lastch; ns_from=lastns; lastch=-1; // -> setup all kind of vars to continue
+ do_decode_bufs(spu.spuMem, ch/2, ns_to, spu.decode_pos);
+ spu.decode_dirty_ch |= 1 << ch;
}
- silentch=~(dwChannelOn|dwNewChannel);
+ if (s_chan->bFMod == 2) // fmod freq channel
+ memcpy(iFMod, &ChanBuf, ns_to * sizeof(iFMod[0]));
+ if (s_chan->bRVBActive && do_rvb)
+ mix_chan_rvb(spu.SSumLR, ns_to, s_chan->iLeftVolume, s_chan->iRightVolume, RVB);
+ else
+ mix_chan(spu.SSumLR, ns_to, s_chan->iLeftVolume, s_chan->iRightVolume);
+ }
- //--------------------------------------------------//
- //- main channel loop -//
- //--------------------------------------------------//
- {
- for(;ch<MAXCHAN;ch++) // loop em all... we will collect 1 ms of sound of each playing channel
- {
- if(dwNewChannel&(1<<ch)) StartSound(ch); // start new sound
- if(!(dwChannelOn&(1<<ch))) continue; // channel not playing? next
-
- if(s_chan[ch].iActFreq!=s_chan[ch].iUsedFreq) // new psx frequency?
- VoiceChangeFrequency(ch);
-
- if(s_chan[ch].bNoise)
- d=do_samples_noise(ch, ns_from, ns_to);
- else if(s_chan[ch].bFMod==2 || (s_chan[ch].bFMod==0 && iUseInterpolation==0))
- d=do_samples_noint(ch, ns_from, ns_to);
- else if(s_chan[ch].bFMod==0 && iUseInterpolation==1)
- d=do_samples_simple(ch, ns_from, ns_to);
- else
- d=do_samples_default(ch, ns_from, ns_to);
- if(d>=0)
- {
- bIRQReturn=1;
- lastch=ch;
- lastns=ns_to=d;
- if(d==0)
- break;
- }
-
- MixADSR(ch, ns_from, ns_to);
-
- if(s_chan[ch].bFMod==2) // fmod freq channel
- memcpy(iFMod, ChanBuf, sizeof(iFMod));
- else if(s_chan[ch].bRVBActive)
- mix_chan_rvb(ns_from,ns_to-ns_from,s_chan[ch].iLeftVolume,s_chan[ch].iRightVolume);
- else
- mix_chan(ns_from,ns_to-ns_from,s_chan[ch].iLeftVolume,s_chan[ch].iRightVolume);
- }
- }
+ MixXA(spu.SSumLR, RVB, ns_to, spu.decode_pos);
- // 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(!(silentch&(1<<ch))) continue; // already handled
- if(dwChannelDead&(1<<ch)) continue;
- if(s_chan[ch].pCurr > pSpuIrq && s_chan[ch].pLoop > pSpuIrq)
- continue;
-
- 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;
-
- // no need for bIRQReturn since the channel is silent
- iSpuAsyncWait |= skip_block(ch);
- if(start == s_chan[ch].pCurr)
- {
- // looping on self
- dwChannelDead|=1<<ch;
- break;
- }
-
- s_chan[ch].spos -= 28 * 0x10000;
- }
- }
+ if (spu.rvb->StartAddr) {
+ if (do_rvb)
+ REVERBDo(spu.SSumLR, RVB, ns_to, spu.rvb->CurrAddr);
- if(bIRQReturn && iSPUIRQWait) // special return for "spu irq - wait for cpu action"
- {
- iSpuAsyncWait=1;
- bIRQReturn=0;
- if(iUseTimer!=2)
- {
- DWORD dwWatchTime=timeGetTime_spu()+2500;
-
- while(iSpuAsyncWait && !bEndThread &&
- timeGetTime_spu()<dwWatchTime)
- usleep(1000L);
- continue;
- }
- else
- {
- return 0;
- }
- }
+ spu.rvb->CurrAddr += ns_to / 2;
+ while (spu.rvb->CurrAddr >= 0x40000)
+ spu.rvb->CurrAddr -= 0x40000 - spu.rvb->StartAddr;
+ }
+}
+static void do_samples_finish(int *SSumLR, int ns_to,
+ int silentch, int decode_pos);
+
+// optional worker thread handling
+
+#if P_HAVE_PTHREAD || defined(WANT_THREAD_CODE)
+
+// worker thread state
+static struct spu_worker {
+ union {
+ struct {
+ unsigned int exit_thread;
+ unsigned int i_ready;
+ unsigned int i_reaped;
+ unsigned int last_boot_cnt; // dsp
+ unsigned int ram_dirty;
+ };
+ // aligning for C64X_DSP
+ unsigned int _pad0[128/4];
+ };
+ union {
+ struct {
+ unsigned int i_done;
+ unsigned int active; // dsp
+ unsigned int boot_cnt;
+ };
+ unsigned int _pad1[128/4];
+ };
+ struct work_item {
+ int ns_to;
+ int ctrl;
+ int decode_pos;
+ int rvb_addr;
+ unsigned int channels_new;
+ unsigned int channels_on;
+ unsigned int channels_silent;
+ struct {
+ int spos;
+ int sbpos;
+ int sinc;
+ int start;
+ int loop;
+ short vol_l;
+ short vol_r;
+ unsigned short ns_to;
+ unsigned short bNoise:1;
+ unsigned short bFMod:2;
+ unsigned short bRVBActive:1;
+ unsigned short bNewPitch:1;
+ ADSRInfoEx adsr;
+ } ch[24];
+ int SSumLR[NSSIZE * 2];
+ } i[4];
+} *worker;
+
+#define WORK_MAXCNT (sizeof(worker->i) / sizeof(worker->i[0]))
+#define WORK_I_MASK (WORK_MAXCNT - 1)
+
+static void thread_work_start(void);
+static void thread_work_wait_sync(struct work_item *work, int force);
+static void thread_sync_caches(void);
+static int thread_get_i_done(void);
+
+static int decode_block_work(void *context, int ch, int *SB)
+{
+ const unsigned char *ram = spu.spuMemC;
+ int predict_nr, shift_factor, flags;
+ struct work_item *work = context;
+ int start = work->ch[ch].start;
+ int loop = work->ch[ch].loop;
+
+ predict_nr = ram[start];
+ shift_factor = predict_nr & 0xf;
+ predict_nr >>= 4;
- //---------------------------------------------------//
- //- here we have another 1 ms of sound data
- //---------------------------------------------------//
- // mix XA infos (if any)
+ decode_block_data(SB, ram + start + 2, predict_nr, shift_factor);
- MixXA();
-
- ///////////////////////////////////////////////////////
- // mix all channels (including reverb) into one buffer
+ flags = ram[start + 1];
+ if (flags & 4)
+ loop = start; // loop adress
- if(iUseReverb)
- REVERBDo();
+ start += 16;
- if((spuCtrl&0x4000)==0) // muted? (rare, don't optimize for this)
- {
- memset(pS, 0, NSSIZE * 2 * sizeof(pS[0]));
- pS += NSSIZE*2;
+ if (flags & 1) // 1: stop/loop
+ start = loop;
+
+ work->ch[ch].start = start & 0x7ffff;
+ work->ch[ch].loop = loop;
+
+ return 0;
+}
+
+static void queue_channel_work(int ns_to, unsigned int silentch)
+{
+ struct work_item *work;
+ SPUCHAN *s_chan;
+ unsigned int mask;
+ int ch, d;
+
+ work = &worker->i[worker->i_ready & WORK_I_MASK];
+ work->ns_to = ns_to;
+ work->ctrl = spu.spuCtrl;
+ work->decode_pos = spu.decode_pos;
+ work->channels_silent = silentch;
+
+ mask = work->channels_new = spu.dwNewChannel & 0xffffff;
+ for (ch = 0; mask != 0; ch++, mask >>= 1) {
+ if (mask & 1)
+ StartSoundMain(ch);
+ }
+
+ mask = work->channels_on = spu.dwChannelsAudible & 0xffffff;
+ spu.decode_dirty_ch |= mask & 0x0a;
+
+ for (ch = 0; mask != 0; ch++, mask >>= 1)
+ {
+ if (!(mask & 1)) continue;
+
+ s_chan = &spu.s_chan[ch];
+ work->ch[ch].spos = s_chan->spos;
+ work->ch[ch].sbpos = s_chan->iSBPos;
+ work->ch[ch].sinc = s_chan->sinc;
+ work->ch[ch].adsr = s_chan->ADSRX;
+ work->ch[ch].vol_l = s_chan->iLeftVolume;
+ work->ch[ch].vol_r = s_chan->iRightVolume;
+ work->ch[ch].start = s_chan->pCurr - spu.spuMemC;
+ work->ch[ch].loop = s_chan->pLoop - spu.spuMemC;
+ work->ch[ch].bNoise = s_chan->bNoise;
+ work->ch[ch].bFMod = s_chan->bFMod;
+ work->ch[ch].bRVBActive = s_chan->bRVBActive;
+ work->ch[ch].bNewPitch = s_chan->bNewPitch;
+ if (s_chan->prevflags & 1)
+ work->ch[ch].start = work->ch[ch].loop;
+
+ d = do_samples_skip(ch, ns_to);
+ work->ch[ch].ns_to = d;
+
+ // note: d is not accurate on skip
+ 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;
}
- else
- for (ns = 0; ns < NSSIZE*2; )
- {
- d = SSumLR[ns]; SSumLR[ns] = 0;
- d = d * volmult >> 10;
- ssat32_to_16(d);
- *pS++ = d;
- ns++;
+ s_chan->bNewPitch = 0;
+ }
- d = SSumLR[ns]; SSumLR[ns] = 0;
- d = d * volmult >> 10;
- ssat32_to_16(d);
- *pS++ = d;
- ns++;
+ work->rvb_addr = 0;
+ if (spu.rvb->StartAddr) {
+ if (spu_config.iUseReverb)
+ work->rvb_addr = spu.rvb->CurrAddr;
+
+ spu.rvb->CurrAddr += ns_to / 2;
+ while (spu.rvb->CurrAddr >= 0x40000)
+ spu.rvb->CurrAddr -= 0x40000 - spu.rvb->StartAddr;
+ }
+
+ worker->i_ready++;
+ thread_work_start();
+}
+
+static void do_channel_work(struct work_item *work)
+{
+ unsigned int mask;
+ int *SB, sinc, spos, sbpos;
+ int d, ch, ns_to;
+
+ ns_to = work->ns_to;
+
+ if (work->rvb_addr)
+ memset(RVB, 0, ns_to * sizeof(RVB[0]) * 2);
+
+ mask = work->channels_new;
+ for (ch = 0; mask != 0; ch++, mask >>= 1) {
+ if (mask & 1)
+ StartSoundSB(spu.SB + ch * SB_SIZE);
+ }
+
+ mask = work->channels_on;
+ for (ch = 0; mask != 0; ch++, mask >>= 1)
+ {
+ if (!(mask & 1)) continue;
+
+ d = work->ch[ch].ns_to;
+ spos = work->ch[ch].spos;
+ sbpos = work->ch[ch].sbpos;
+ sinc = work->ch[ch].sinc;
+
+ SB = spu.SB + ch * SB_SIZE;
+ if (work->ch[ch].bNewPitch)
+ SB[32] = 1; // reset interpolation
+
+ if (work->ch[ch].bNoise)
+ do_lsfr_samples(d, work->ctrl, &spu.dwNoiseCount, &spu.dwNoiseVal);
+ else if (work->ch[ch].bFMod == 2
+ || (work->ch[ch].bFMod == 0 && spu_config.iUseInterpolation == 0))
+ do_samples_noint(decode_block_work, work, ch, d, SB, sinc, &spos, &sbpos);
+ else if (work->ch[ch].bFMod == 0 && spu_config.iUseInterpolation == 1)
+ do_samples_simple(decode_block_work, work, ch, d, SB, sinc, &spos, &sbpos);
+ else
+ do_samples_default(decode_block_work, work, ch, d, SB, sinc, &spos, &sbpos);
+
+ d = MixADSR(&work->ch[ch].adsr, d);
+ if (d < ns_to) {
+ work->ch[ch].adsr.EnvelopeVol = 0;
+ memset(&ChanBuf[d], 0, (ns_to - d) * sizeof(ChanBuf[0]));
}
- //////////////////////////////////////////////////////
+ if (ch == 1 || ch == 3)
+ do_decode_bufs(spu.spuMem, ch/2, ns_to, work->decode_pos);
+
+ if (work->ch[ch].bFMod == 2) // fmod freq channel
+ memcpy(iFMod, &ChanBuf, ns_to * sizeof(iFMod[0]));
+ if (work->ch[ch].bRVBActive && work->rvb_addr)
+ mix_chan_rvb(work->SSumLR, ns_to,
+ work->ch[ch].vol_l, work->ch[ch].vol_r, RVB);
+ else
+ mix_chan(work->SSumLR, ns_to, work->ch[ch].vol_l, work->ch[ch].vol_r);
+ }
+
+ if (work->rvb_addr)
+ REVERBDo(work->SSumLR, RVB, ns_to, work->rvb_addr);
+}
+
+static void sync_worker_thread(int force)
+{
+ struct work_item *work;
+ int done, used_space;
+
+ // rvb offsets will change, thread may be using them
+ force |= spu.rvb->dirty && spu.rvb->StartAddr;
+
+ done = thread_get_i_done() - worker->i_reaped;
+ used_space = worker->i_ready - worker->i_reaped;
+
+ //printf("done: %d use: %d dsp: %u/%u\n", done, used_space,
+ // worker->boot_cnt, worker->i_done);
+
+ while ((force && used_space > 0) || used_space >= WORK_MAXCNT || done > 0) {
+ work = &worker->i[worker->i_reaped & WORK_I_MASK];
+ thread_work_wait_sync(work, force);
+
+ MixXA(work->SSumLR, RVB, work->ns_to, work->decode_pos);
+ do_samples_finish(work->SSumLR, work->ns_to,
+ work->channels_silent, work->decode_pos);
+
+ worker->i_reaped++;
+ done = thread_get_i_done() - worker->i_reaped;
+ used_space = worker->i_ready - worker->i_reaped;
+ }
+ if (force)
+ thread_sync_caches();
+}
+
+#else
+
+static void queue_channel_work(int ns_to, int silentch) {}
+static void sync_worker_thread(int force) {}
+
+static const void * const worker = NULL;
+
+#endif // P_HAVE_PTHREAD || defined(WANT_THREAD_CODE)
+
+////////////////////////////////////////////////////////////////////////
+// MAIN SPU FUNCTION
+// here is the main job handler...
+////////////////////////////////////////////////////////////////////////
+
+void do_samples(unsigned int cycles_to, int do_direct)
+{
+ unsigned int silentch;
+ int cycle_diff;
+ int ns_to;
+
+ cycle_diff = cycles_to - spu.cycles_played;
+ if (cycle_diff < -2*1048576 || cycle_diff > 2*1048576)
+ {
+ //xprintf("desync %u %d\n", cycles_to, cycle_diff);
+ spu.cycles_played = cycles_to;
+ return;
+ }
+
+ silentch = ~(spu.dwChannelsAudible | spu.dwNewChannel) & 0xffffff;
+
+ do_direct |= (silentch == 0xffffff);
+ if (worker != NULL)
+ sync_worker_thread(do_direct);
+
+ if (cycle_diff < 2 * 768)
+ return;
+
+ ns_to = (cycle_diff / 768 + 1) & ~1;
+ if (ns_to > NSSIZE) {
+ // should never happen
+ //xprintf("ns_to oflow %d %d\n", ns_to, NSSIZE);
+ ns_to = NSSIZE;
+ }
+
+ //////////////////////////////////////////////////////
// special irq handling in the decode buffers (0x0000-0x1000)
- // we know:
+ // we know:
// the decode buffers are located in spu memory in the following way:
// 0x0000-0x03ff CD audio left
// 0x0400-0x07ff CD audio right
// 0x0800-0x0bff Voice 1
// 0x0c00-0x0fff Voice 3
// and decoded data is 16 bit for one sample
- // we assume:
+ // we assume:
// even if voices 1/3 are off or no cd audio is playing, the internal
// play positions will move on and wrap after 0x400 bytes.
- // Therefore: we just need a pointer from spumem+0 to spumem+3ff, and
+ // Therefore: we just need a pointer from spumem+0 to spumem+3ff, and
// increase this pointer on each sample by 2 bytes. If this pointer
// (or 0x400 offsets of this pointer) hits the spuirq address, we generate
- // 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).
+ // an IRQ.
- if(pMixIrq)
+ if (unlikely((spu.spuCtrl & CTRL_IRQ)
+ && spu.pSpuIrq < spu.spuMemC+0x1000))
{
- for(ns=0;ns<NSSIZE;ns++)
+ int irq_pos = (spu.pSpuIrq - spu.spuMemC) / 2 & 0x1ff;
+ int left = (irq_pos - spu.decode_pos) & 0x1ff;
+ if (0 < left && left <= ns_to)
{
- if((spuCtrl&0x40) && pSpuIrq && pSpuIrq<spuMemC+0x1000)
- {
- for(ch=0;ch<4;ch++)
- {
- if(pSpuIrq>=pMixIrq+(ch*0x400) && pSpuIrq<pMixIrq+(ch*0x400)+2)
- do_irq();
- }
- }
- pMixIrq+=2;if(pMixIrq>spuMemC+0x3ff) pMixIrq=spuMemC;
+ //xprintf("decoder irq %x\n", spu.decode_pos);
+ do_irq();
}
}
+ if (!spu.cycles_dma_end || (int)(spu.cycles_dma_end - cycles_to) < 0) {
+ spu.cycles_dma_end = 0;
+ check_irq_io(spu.spuAddr);
+ }
+
+ if (unlikely(spu.rvb->dirty))
+ REVERBPrep();
+
+ if (do_direct || worker == NULL || !spu_config.iUseThread) {
+ do_channels(ns_to);
+ do_samples_finish(spu.SSumLR, ns_to, silentch, spu.decode_pos);
+ }
+ else {
+ queue_channel_work(ns_to, silentch);
+ //sync_worker_thread(1); // uncomment for debug
+ }
- InitREVERB();
+ // advance "stopped" channels that can cause irqs
+ // (all chans are always playing on the real thing..)
+ if (spu.spuCtrl & CTRL_IRQ)
+ do_silent_chans(ns_to, silentch);
- // feed the sound
- // wanna have around 1/60 sec (16.666 ms) updates
- if (iCycle++ > 16/FRAG_MSECS)
+ spu.cycles_played += ns_to * 768;
+ spu.decode_pos = (spu.decode_pos + ns_to) & 0x1ff;
+}
+
+static void do_samples_finish(int *SSumLR, int ns_to,
+ int silentch, int decode_pos)
+{
+ int vol_l = ((int)regAreaGet(H_SPUmvolL) << 17) >> 17;
+ int vol_r = ((int)regAreaGet(H_SPUmvolR) << 17) >> 17;
+ int ns;
+ int d;
+
+ // must clear silent channel decode buffers
+ if(unlikely(silentch & spu.decode_dirty_ch & (1<<1)))
{
- SoundFeedStreamData((unsigned char *)pSpuBuffer,
- ((unsigned char *)pS) - ((unsigned char *)pSpuBuffer));
- pS = (short *)pSpuBuffer;
- iCycle = 0;
+ memset(&spu.spuMem[0x800/2], 0, 0x400);
+ spu.decode_dirty_ch &= ~(1<<1);
+ }
+ if(unlikely(silentch & spu.decode_dirty_ch & (1<<3)))
+ {
+ memset(&spu.spuMem[0xc00/2], 0, 0x400);
+ spu.decode_dirty_ch &= ~(1<<3);
}
- }
- // end of big main loop...
+ vol_l = vol_l * spu_config.iVolume >> 10;
+ vol_r = vol_r * spu_config.iVolume >> 10;
- bThreadEnded = 1;
+ if (!(spu.spuCtrl & CTRL_MUTE) || !(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 * vol_l >> 14;
+ ssat32_to_16(d);
+ *spu.pS++ = d;
+ ns++;
- return 0;
+ d = SSumLR[ns]; SSumLR[ns] = 0;
+ d = d * vol_r >> 14;
+ ssat32_to_16(d);
+ *spu.pS++ = d;
+ ns++;
+ }
+}
+
+void schedule_next_irq(void)
+{
+ unsigned int upd_samples;
+ int ch;
+
+ if (spu.scheduleCallback == NULL)
+ return;
+
+ upd_samples = 44100 / 50;
+
+ for (ch = 0; ch < MAXCHAN; ch++)
+ {
+ if (spu.dwChannelDead & (1 << ch))
+ continue;
+ if ((unsigned long)(spu.pSpuIrq - spu.s_chan[ch].pCurr) > IRQ_NEAR_BLOCKS * 16
+ && (unsigned long)(spu.pSpuIrq - spu.s_chan[ch].pLoop) > IRQ_NEAR_BLOCKS * 16)
+ continue;
+ if (spu.s_chan[ch].sinc == 0)
+ continue;
+
+ scan_for_irq(ch, &upd_samples);
+ }
+
+ if (unlikely(spu.pSpuIrq < spu.spuMemC + 0x1000))
+ {
+ int irq_pos = (spu.pSpuIrq - spu.spuMemC) / 2 & 0x1ff;
+ int left = (irq_pos - spu.decode_pos) & 0x1ff;
+ if (0 < left && left < upd_samples) {
+ //xprintf("decode: %3d (%3d/%3d)\n", left, spu.decode_pos, irq_pos);
+ upd_samples = left;
+ }
+ }
+
+ if (upd_samples < 44100 / 50)
+ spu.scheduleCallback(upd_samples * 768);
}
// SPU ASYNC... even newer epsxe func
// 1 time every 'cycle' cycles... harhar
-void CALLBACK SPUasync(unsigned long cycle)
+// rearmed: called dynamically now
+
+void CALLBACK SPUasync(unsigned int cycle, unsigned int flags)
{
- if(iSpuAsyncWait)
- {
- iSpuAsyncWait++;
- if(iSpuAsyncWait<=16/FRAG_MSECS) return;
- iSpuAsyncWait=0;
- }
+ do_samples(cycle, spu_config.iUseFixedUpdates);
- if(iUseTimer==2) // special mode, only used in Linux by this spu (or if you enable the experimental Windows mode)
- {
- if(!bSpuInit) return; // -> no init, no call
+ if (spu.spuCtrl & CTRL_IRQ)
+ schedule_next_irq();
- MAINThread(0); // -> linux high-compat mode
+ if (flags & 1) {
+ out_current->feed(spu.pSpuBuffer, (unsigned char *)spu.pS - spu.pSpuBuffer);
+ spu.pS = (short *)spu.pSpuBuffer;
- // abuse iSpuAsyncWait mechanism to reduce calls to above function
- // to make it do larger chunks
- // note: doing it less often than once per frame causes skips
- iSpuAsyncWait=1;
+ if (spu_config.iTempo) {
+ if (!out_current->busy())
+ // cause more samples to be generated
+ // (and break some games because of bad sync)
+ spu.cycles_played -= 44100 / 60 / 2 * 768;
}
+ }
}
// SPU UPDATE... new epsxe func
void CALLBACK SPUupdate(void)
{
- SPUasync(0);
}
// 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
-void CALLBACK SPUplayCDDAchannel(short *pcm, int nbytes)
+int CALLBACK SPUplayCDDAchannel(short *pcm, int nbytes, unsigned int cycle, int is_start)
{
- if (!pcm) return;
- if (nbytes<=0) return;
+ if (!pcm) return -1;
+ if (nbytes<=0) return -1;
- FeedCDDA((unsigned char *)pcm, nbytes);
+ if (is_start)
+ do_samples(cycle, 1); // catch up to prevent source underflows later
+
+ return FeedCDDA((unsigned char *)pcm, nbytes);
}
-// SETUPTIMER: init of certain buffers and threads/timers
-void SetupTimer(void)
+// to be called after state load
+void ClearWorkingState(void)
{
- memset(SSumLR,0,sizeof(SSumLR)); // init some mixing buffers
- memset(iFMod,0,NSSIZE*sizeof(int));
- pS=(short *)pSpuBuffer; // setup soundbuffer pointer
+ memset(iFMod, 0, sizeof(iFMod));
+ spu.pS=(short *)spu.pSpuBuffer; // setup soundbuffer pointer
+}
- bEndThread=0; // init thread vars
- bThreadEnded=0;
- bSpuInit=1; // flag: we are inited
+// SETUPSTREAMS: init most of the spu buffers
+static void SetupStreams(void)
+{
+ spu.pSpuBuffer = (unsigned char *)malloc(32768); // alloc mixing buffer
+ spu.SSumLR = calloc(NSSIZE * 2, sizeof(spu.SSumLR[0]));
- if(!iUseTimer) // linux: use thread
- {
- pthread_create(&thread, NULL, MAINThread, NULL);
- }
+ spu.XAStart = malloc(44100 * sizeof(uint32_t)); // alloc xa buffer
+ spu.XAEnd = spu.XAStart + 44100;
+ spu.XAPlay = spu.XAStart;
+ spu.XAFeed = spu.XAStart;
+
+ spu.CDDAStart = malloc(CDDA_BUFFER_SIZE); // alloc cdda buffer
+ spu.CDDAEnd = spu.CDDAStart + 16384;
+ spu.CDDAPlay = spu.CDDAStart;
+ spu.CDDAFeed = spu.CDDAStart;
+
+ ClearWorkingState();
+}
+
+// REMOVESTREAMS: free most buffer
+static void RemoveStreams(void)
+{
+ free(spu.pSpuBuffer); // free mixing buffer
+ spu.pSpuBuffer = NULL;
+ free(spu.SSumLR);
+ spu.SSumLR = NULL;
+ free(spu.XAStart); // free XA buffer
+ spu.XAStart = NULL;
+ free(spu.CDDAStart); // free CDDA buffer
+ spu.CDDAStart = NULL;
}
-// REMOVETIMER: kill threads/timers
-void RemoveTimer(void)
+#if defined(C64X_DSP)
+
+/* special code for TI C64x DSP */
+#include "spu_c64x.c"
+
+#elif P_HAVE_PTHREAD
+
+#include <pthread.h>
+#include <semaphore.h>
+#include <unistd.h>
+
+static struct {
+ pthread_t thread;
+ sem_t sem_avail;
+ sem_t sem_done;
+} t;
+
+/* generic pthread implementation */
+
+static void thread_work_start(void)
{
- bEndThread=1; // raise flag to end thread
+ sem_post(&t.sem_avail);
+}
- if(!iUseTimer) // linux tread?
- {
- int i=0;
- while(!bThreadEnded && i<2000) {usleep(1000L);i++;} // -> wait until thread has ended
- if(thread!=(pthread_t)-1) {pthread_cancel(thread);thread=(pthread_t)-1;} // -> cancel thread anyway
- }
+static void thread_work_wait_sync(struct work_item *work, int force)
+{
+ sem_wait(&t.sem_done);
+}
- bThreadEnded=0; // no more spu is running
- bSpuInit=0;
+static int thread_get_i_done(void)
+{
+ return worker->i_done;
}
-// SETUPSTREAMS: init most of the spu buffers
-void SetupStreams(void)
-{
- int i;
+static void thread_sync_caches(void)
+{
+}
- pSpuBuffer=(unsigned char *)malloc(32768); // alloc mixing buffer
+static void *spu_worker_thread(void *unused)
+{
+ struct work_item *work;
- if(iUseReverb==1) i=88200*2;
- else i=NSSIZE*2;
+ while (1) {
+ sem_wait(&t.sem_avail);
+ if (worker->exit_thread)
+ break;
- sRVBStart = (int *)malloc(i*4); // alloc reverb buffer
- memset(sRVBStart,0,i*4);
- sRVBEnd = sRVBStart + i;
- sRVBPlay = sRVBStart;
+ work = &worker->i[worker->i_done & WORK_I_MASK];
+ do_channel_work(work);
+ worker->i_done++;
- XAStart = // alloc xa buffer
- (uint32_t *)malloc(44100 * sizeof(uint32_t));
- XAEnd = XAStart + 44100;
- XAPlay = XAStart;
- XAFeed = XAStart;
+ sem_post(&t.sem_done);
+ }
- CDDAStart = // alloc cdda buffer
- (uint32_t *)malloc(16384 * sizeof(uint32_t));
- CDDAEnd = CDDAStart + 16384;
- CDDAPlay = CDDAStart;
- CDDAFeed = CDDAStart;
+ return NULL;
+}
- for(i=0;i<MAXCHAN;i++) // loop sound channels
- {
-// we don't use mutex sync... not needed, would only
-// slow us down:
-// s_chan[i].hMutex=CreateMutex(NULL,FALSE,NULL);
- s_chan[i].ADSRX.SustainLevel = 0xf; // -> init sustain
- s_chan[i].pLoop=spuMemC;
- s_chan[i].pStart=spuMemC;
- s_chan[i].pCurr=spuMemC;
- }
+static void init_spu_thread(void)
+{
+ int ret;
+
+ if (sysconf(_SC_NPROCESSORS_ONLN) <= 1)
+ return;
+
+ worker = calloc(1, sizeof(*worker));
+ if (worker == NULL)
+ return;
+ ret = sem_init(&t.sem_avail, 0, 0);
+ if (ret != 0)
+ goto fail_sem_avail;
+ ret = sem_init(&t.sem_done, 0, 0);
+ if (ret != 0)
+ goto fail_sem_done;
+
+ ret = pthread_create(&t.thread, NULL, spu_worker_thread, NULL);
+ if (ret != 0)
+ goto fail_thread;
+
+ spu_config.iThreadAvail = 1;
+ return;
+
+fail_thread:
+ sem_destroy(&t.sem_done);
+fail_sem_done:
+ sem_destroy(&t.sem_avail);
+fail_sem_avail:
+ free(worker);
+ worker = NULL;
+ spu_config.iThreadAvail = 0;
+}
- pMixIrq=spuMemC; // enable decoded buffer irqs by setting the address
+static void exit_spu_thread(void)
+{
+ if (worker == NULL)
+ return;
+ worker->exit_thread = 1;
+ sem_post(&t.sem_avail);
+ pthread_join(t.thread, NULL);
+ sem_destroy(&t.sem_done);
+ sem_destroy(&t.sem_avail);
+ free(worker);
+ worker = NULL;
}
-// REMOVESTREAMS: free most buffer
-void RemoveStreams(void)
-{
- free(pSpuBuffer); // free mixing buffer
- pSpuBuffer = NULL;
- free(sRVBStart); // free reverb buffer
- sRVBStart = NULL;
- free(XAStart); // free XA buffer
- XAStart = NULL;
- free(CDDAStart); // free CDDA buffer
- CDDAStart = NULL;
+#else // if !P_HAVE_PTHREAD
+
+static void init_spu_thread(void)
+{
}
-// INIT/EXIT STUFF
+static void exit_spu_thread(void)
+{
+}
+
+#endif
// SPUINIT: this func will be called first by the main emu
long CALLBACK SPUinit(void)
{
- spuMemC = (unsigned char *)spuMem; // just small setup
- memset((void *)&rvb, 0, sizeof(REVERBInfo));
+ int i;
+
+ memset(&spu, 0, sizeof(spu));
+ spu.spuMemC = calloc(1, 512 * 1024);
InitADSR();
- spuIrq = 0;
- spuAddr = 0xffffffff;
- bEndThread = 0;
- bThreadEnded = 0;
- spuMemC = (unsigned char *)spuMem;
- pMixIrq = 0;
- memset((void *)s_chan, 0, (MAXCHAN + 1) * sizeof(SPUCHAN));
- pSpuIrq = 0;
- //iSPUIRQWait = 0;
- lastch = -1;
-
- //ReadConfigSPU(); // read user stuff
+ spu.s_chan = calloc(MAXCHAN+1, sizeof(spu.s_chan[0])); // channel + 1 infos (1 is security for fmod handling)
+ spu.rvb = calloc(1, sizeof(REVERBInfo));
+ spu.SB = calloc(MAXCHAN, sizeof(spu.SB[0]) * SB_SIZE);
+
+ spu.spuAddr = 0;
+ spu.decode_pos = 0;
+ spu.pSpuIrq = spu.spuMemC;
+
SetupStreams(); // prepare streaming
+ if (spu_config.iVolume == 0)
+ spu_config.iVolume = 768; // 1024 is 1.0
+
+ init_spu_thread();
+
+ for (i = 0; i < MAXCHAN; i++) // loop sound channels
+ {
+ spu.s_chan[i].ADSRX.SustainLevel = 0xf; // -> init sustain
+ spu.s_chan[i].ADSRX.SustainIncrease = 1;
+ spu.s_chan[i].pLoop = spu.spuMemC;
+ spu.s_chan[i].pCurr = spu.spuMemC;
+ spu.s_chan[i].bIgnoreLoop = 0;
+ }
+
+ spu.bSpuInit=1; // flag: we are inited
+
return 0;
}
// SPUOPEN: called by main emu after init
long CALLBACK SPUopen(void)
{
- if (bSPUIsOpen) return 0; // security for some stupid main emus
+ if (spu.bSPUIsOpen) return 0; // security for some stupid main emus
SetupSound(); // setup sound (before init!)
- SetupTimer(); // timer for feeding data
- bSPUIsOpen = 1;
+ spu.bSPUIsOpen = 1;
return PSE_SPU_ERR_SUCCESS;
}
// SPUCLOSE: called before shutdown
long CALLBACK SPUclose(void)
{
- if (!bSPUIsOpen) return 0; // some security
+ if (!spu.bSPUIsOpen) return 0; // some security
- bSPUIsOpen = 0; // no more open
+ spu.bSPUIsOpen = 0; // no more open
- RemoveTimer(); // no more feeding
- RemoveSound(); // no more sound handling
+ out_current->finish(); // no more sound handling
return 0;
}
long CALLBACK SPUshutdown(void)
{
SPUclose();
- RemoveStreams(); // no more streaming
- return 0;
-}
+ exit_spu_thread();
-// SPUTEST: we don't test, we are always fine ;)
-long CALLBACK SPUtest(void)
-{
- return 0;
-}
+ free(spu.spuMemC);
+ spu.spuMemC = NULL;
+ free(spu.SB);
+ spu.SB = NULL;
+ free(spu.s_chan);
+ spu.s_chan = NULL;
+ free(spu.rvb);
+ spu.rvb = NULL;
-// SPUCONFIGURE: call config dialog
-long CALLBACK SPUconfigure(void)
-{
-#ifdef _MACOSX
- DoConfiguration();
-#else
-// StartCfgTool("CFG");
-#endif
- return 0;
-}
+ RemoveStreams(); // no more streaming
+ spu.bSpuInit=0;
-// SPUABOUT: show about window
-void CALLBACK SPUabout(void)
-{
-#ifdef _MACOSX
- DoAbout();
-#else
-// StartCfgTool("ABOUT");
-#endif
+ return 0;
}
// SETUP CALLBACKS
// passes a callback that should be called on SPU-IRQ/cdda volume change
void CALLBACK SPUregisterCallback(void (CALLBACK *callback)(void))
{
- irqCallback = callback;
+ spu.irqCallback = callback;
}
-void CALLBACK SPUregisterCDDAVolume(void (CALLBACK *CDDAVcallback)(unsigned short,unsigned short))
+void CALLBACK SPUregisterCDDAVolume(void (CALLBACK *CDDAVcallback)(short, short))
{
- cddavCallback = CDDAVcallback;
+ spu.cddavCallback = CDDAVcallback;
+}
+
+void CALLBACK SPUregisterScheduleCb(void (CALLBACK *callback)(unsigned int))
+{
+ spu.scheduleCallback = callback;
}
// COMMON PLUGIN INFO FUNCS
{
int ch = 0, fmod_chans = 0, noise_chans = 0, irq_chans = 0;
+ if (spu.s_chan == NULL)
+ return;
+
for(;ch<MAXCHAN;ch++)
{
- if (!(dwChannelOn & (1<<ch)))
+ if (!(spu.dwChannelsAudible & (1<<ch)))
continue;
- if (s_chan[ch].bFMod == 2)
+ if (spu.s_chan[ch].bFMod == 2)
fmod_chans |= 1 << ch;
- if (s_chan[ch].bNoise)
+ if (spu.s_chan[ch].bNoise)
noise_chans |= 1 << ch;
- if((spuCtrl&CTRL_IRQ) && s_chan[ch].pCurr <= pSpuIrq && s_chan[ch].pLoop <= pSpuIrq)
+ if((spu.spuCtrl&CTRL_IRQ) && spu.s_chan[ch].pCurr <= spu.pSpuIrq && spu.s_chan[ch].pLoop <= spu.pSpuIrq)
irq_chans |= 1 << ch;
}
- *chans_out = dwChannelOn;
- *run_chans = ~dwChannelOn & ~dwChannelDead & irq_chans;
+ *chans_out = spu.dwChannelsAudible;
+ *run_chans = ~spu.dwChannelsAudible & ~spu.dwChannelDead & irq_chans;
*fmod_chans_out = fmod_chans;
*noise_chans_out = noise_chans;
}