X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=pcsx_rearmed.git;a=blobdiff_plain;f=plugins%2Fdfsound%2Fspu.c;h=d2eed13f97553021285facdd01c558905ad6fcae;hp=afd5fd6c968a244c563e2624ac5b4915819b06cf;hb=54933c929d2e418e925ae823e3fa7607b2d5ac85;hpb=17ed0d696a7a3649cc41dcf182e162c85002b33a diff --git a/plugins/dfsound/spu.c b/plugins/dfsound/spu.c index afd5fd6c..d2eed13f 100644 --- a/plugins/dfsound/spu.c +++ b/plugins/dfsound/spu.c @@ -4,6 +4,9 @@ begin : Wed May 15 2002 copyright : (C) 2002 by Pete Bernert email : BlackDove@addcom.de + + Portions (C) Gražvydas "notaz" Ignotas, 2010-2012 + ***************************************************************************/ /*************************************************************************** * * @@ -20,9 +23,9 @@ #define _IN_SPU #include "externals.h" -#include "cfg.h" -#include "dsoundoss.h" -#include "regs.h" +#include "registers.h" +#include "out.h" +#include "arm_features.h" #ifdef ENABLE_NLS #include @@ -34,6 +37,22 @@ #define N_(x) (x) #endif +#ifdef __ARM_ARCH_7A__ + #define ssat32_to_16(v) \ + asm("ssat %0,#16,%1" : "=r" (v) : "r" (v)) +#else + #define ssat32_to_16(v) do { \ + if (v < -32768) v = -32768; \ + else if (v > 32767) v = 32767; \ + } 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"); #elif defined (USEALSA) @@ -49,6 +68,7 @@ static char * libraryName = N_("NULL Sound"); #endif static char * libraryInfo = N_("P.E.Op.S. Sound Driver V1.7\nCoded by Pete Bernert and the P.E.Op.S. team\n"); +*/ // globals @@ -59,60 +79,55 @@ unsigned short spuMem[256*1024]; unsigned char * spuMemC; unsigned char * pSpuIrq=0; unsigned char * pSpuBuffer; -unsigned char * pMixIrq=0; // user settings -int iVolume=3; +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; -int iDisStereo=0; // MAIN infos struct for each channel SPUCHAN s_chan[MAXCHAN+1]; // channel + 1 infos (1 is security for fmod handling) REVERBInfo rvb; -unsigned long dwNoiseVal=1; // global noise generator -int iSpuAsyncWait=0; +unsigned int dwNoiseVal; // global noise generator +unsigned int dwNoiseCount; 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 long dwNewChannel=0; // flags for faster testing, if new channel starts +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; +void (CALLBACK *scheduleCallback)(unsigned int)=0; // certain globals (were local before, but with the new timeproc I need em global) -static const int f[5][2] = { { 0, 0 }, +static const int f[8][2] = { { 0, 0 }, { 60, 0 }, { 115, -52 }, { 98, -55 }, { 122, -60 } }; -int SSumR[NSSIZE]; -int SSumL[NSSIZE]; +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 +static int decode_dirty_ch; +int decode_pos; +unsigned int cycles_played; + +#define CDDA_BUFFER_SIZE (16384 * sizeof(uint32_t)) // must be power of 2 //////////////////////////////////////////////////////////////////////// // CODE AREA @@ -202,9 +217,10 @@ INLINE void InterpolateUp(int ch) s_chan[ch].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]; + //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]; } else // no flags? add bigger val (if possible), calc smaller step, set flag1 s_chan[ch].SB[29]+=s_chan[ch].SB[28]; @@ -228,7 +244,7 @@ INLINE void InterpolateDown(int ch) // 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 gval(x) ((int)((short*)(&s_chan[ch].SB[29]))[(gpos+x)&3]) #include "gauss_i.h" @@ -236,6 +252,26 @@ INLINE void InterpolateDown(int ch) #include "xa.c" +static void do_irq(void) +{ + //if(!(spuStat & STAT_IRQ)) + { + spuStat |= STAT_IRQ; // asserted status? + if(irqCallback) irqCallback(); + } +} + +static int check_irq(int ch, unsigned char *pos) +{ + if((spuCtrl & CTRL_IRQ) && pos == pSpuIrq) + { + //printf("ch%d irq %04x\n", ch, pos - spuMemC); + do_irq(); + return 1; + } + return 0; +} + //////////////////////////////////////////////////////////////////////// // START SOUND... called by main thread to setup a new sound on a channel //////////////////////////////////////////////////////////////////////// @@ -250,12 +286,10 @@ INLINE void StartSound(int ch) //s_chan[ch].bStop=0; //s_chan[ch].bOn=1; - s_chan[ch].s_1=0; // init mixing vars - s_chan[ch].s_2=0; + s_chan[ch].SB[26]=0; // init mixing vars + s_chan[ch].SB[27]=0; s_chan[ch].iSBPos=28; - s_chan[ch].bNew=0; // init channel flags - s_chan[ch].SB[29]=0; // init our interpolation helpers s_chan[ch].SB[30]=0; @@ -270,64 +304,23 @@ INLINE void StartSound(int ch) // ALL KIND OF HELPERS //////////////////////////////////////////////////////////////////////// -INLINE void VoiceChangeFrequency(int ch) +INLINE int FModChangeFrequency(int ch,int ns) { - 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 -} - -//////////////////////////////////////////////////////////////////////// - -INLINE void FModChangeFrequency(int ch,int ns) -{ - int NP=s_chan[ch].iRawPitch; + unsigned int NP=s_chan[ch].iRawPitch; + int sinc; NP=((32768L+iFMod[ns])*NP)/32768L; 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; - s_chan[ch].sinc=(((NP/10)<<16)/4410); - if(!s_chan[ch].sinc) s_chan[ch].sinc=1; + sinc=NP<<4; // calc frequency if(iUseInterpolation==1) // freq change in simple interpolation mode - s_chan[ch].SB[32]=1; + s_chan[ch].SB[32]=1; iFMod[ns]=0; -} - -//////////////////////////////////////////////////////////////////////// -// noise handler... just produces some noise data -// surely wrong... and no noise frequency (spuCtrl&0x3f00) will be used... -// and sometimes the noise will be used as fmod modulation... pfff - -INLINE int iGetNoiseVal(int ch) -{ - int fa; - - if((dwNoiseVal<<=1)&0x80000000L) - { - dwNoiseVal^=0x0040001L; - fa=((dwNoiseVal>>2)&0x7fff); - fa=-fa; - } - else fa=(dwNoiseVal>>2)&0x7fff; - - // mmm... depending on the noise freq we allow bigger/smaller changes to the previous val - fa=s_chan[ch].iOldNoise+((fa-s_chan[ch].iOldNoise)/((0x001f-((spuCtrl&0x3f00)>>9))+1)); - if(fa>32767L) fa=32767L; - if(fa<-32767L) fa=-32767L; - s_chan[ch].iOldNoise=fa; - - if(iUseInterpolation<2) // no gauss/cubic interpolation? - s_chan[ch].SB[29] = fa; // -> store noise val in "current sample" slot - return fa; -} + return sinc; +} //////////////////////////////////////////////////////////////////////// @@ -337,12 +330,7 @@ INLINE void StoreInterpolationVal(int ch,int fa) s_chan[ch].SB[29]=fa; else { - if((spuCtrl&0x4000)==0) fa=0; // muted? - else // else adjust - { - if(fa>32767L) fa=32767L; - if(fa<-32767L) fa=-32767L; - } + ssat32_to_16(fa); if(iUseInterpolation>=2) // gauss/cubic interpolation { @@ -366,7 +354,7 @@ INLINE void StoreInterpolationVal(int ch,int fa) //////////////////////////////////////////////////////////////////////// -INLINE int iGetInterpolationVal(int ch) +INLINE int iGetInterpolationVal(int ch, int spos) { int fa; @@ -378,7 +366,7 @@ INLINE int iGetInterpolationVal(int ch) case 3: // cubic interpolation { long xd;int gpos; - xd = ((s_chan[ch].spos) >> 1)+1; + xd = (spos >> 1)+1; gpos = s_chan[ch].SB[28]; fa = gval(3) - 3*gval(2) + 3*gval(1) - gval0; @@ -397,9 +385,9 @@ INLINE int iGetInterpolationVal(int ch) case 2: // gauss interpolation { int vl, vr;int gpos; - vl = (s_chan[ch].spos >> 6) & ~3; + vl = (spos >> 6) & ~3; gpos = s_chan[ch].SB[28]; - vr=(gauss[vl]*gval0)&~2047; + vr=(gauss[vl]*(int)gval0)&~2047; vr+=(gauss[vl+1]*gval(1))&~2047; vr+=(gauss[vl+2]*gval(2))&~2047; vr+=(gauss[vl+3]*gval(3))&~2047; @@ -424,368 +412,556 @@ INLINE int iGetInterpolationVal(int ch) return fa; } -//////////////////////////////////////////////////////////////////////// -// 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! -//////////////////////////////////////////////////////////////////////// +static void decode_block_data(int *dest, const unsigned char *src, int predict_nr, int shift_factor) +{ + int nSample; + int fa, s_1, s_2, d, s; -// 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 + s_1 = dest[27]; + s_2 = dest[26]; -#define PAUSE_W 5 -#define PAUSE_L 5000 + for (nSample = 0; nSample < 28; src++) + { + d = (int)*src; + s = (int)(signed short)((d & 0x0f) << 12); -//////////////////////////////////////////////////////////////////////// + fa = s >> shift_factor; + fa += ((s_1 * f[predict_nr][0])>>6) + ((s_2 * f[predict_nr][1])>>6); + s_2=s_1;s_1=fa; + + dest[nSample++] = fa; + + s = (int)(signed short)((d & 0xf0) << 8); + fa = s >> shift_factor; + fa += ((s_1 * f[predict_nr][0])>>6) + ((s_2 * f[predict_nr][1])>>6); + s_2=s_1;s_1=fa; + + dest[nSample++] = fa; + } +} -static void *MAINThread(void *arg) +static int decode_block(int ch) { - int s_1,s_2,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 bIRQReturn=0; + unsigned char *start; + int predict_nr,shift_factor,flags; + int stop = 0; + int ret = 0; - while(!bEndThread) // until we are shutting down - { - // 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 + start = s_chan[ch].pCurr; // set up the current pos + if(start == spuMemC) // ? + stop = 1; - while(!iSecureStart && !bEndThread && // no new start? no thread end? - (SoundGetBytesBuffered()>TESTSIZE)) // and still enuff data in sound buffer? - { - iSecureStart=0; // reset secure + if(s_chan[ch].prevflags&1) // 1: stop/loop + { + if(!(s_chan[ch].prevflags&2)) + stop = 1; - if(iUseTimer) return 0; // linux no-thread mode? bye - usleep(PAUSE_L); // else sleep for x ms (linux) + start = s_chan[ch].pLoop; + } + else + ret = check_irq(ch, start); // hack, see check_irq below.. - if(dwNewChannel) iSecureStart=1; // if a new channel kicks in (or, of course, sound buffer runs low), we will leave the loop - } + if(stop) + { + dwChannelOn &= ~(1< turn everything off + s_chan[ch].bStop = 1; + s_chan[ch].ADSRX.EnvelopeVol = 0; + } - //--------------------------------------------------// continue from irq handling in timer mode? + predict_nr=(int)start[0]; + shift_factor=predict_nr&0xf; + predict_nr >>= 4; - ns_from=0; - ns_to=NSSIZE; - 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 - } + decode_block_data(s_chan[ch].SB, start + 2, predict_nr, shift_factor); - //--------------------------------------------------// - //- main channel loop -// - //--------------------------------------------------// - { - for(;ch=0x10000L) - { - 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 - { - s_chan[ch].bOn=0; // -> turn everything off - s_chan[ch].ADSRX.lVolume=0; - 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? - { - 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))) - { - s_chan[ch].iIrqDone=1; // -> debug flag - 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; - } - } - } - - //////////////////////////////////////////// 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; - -GOON: ; - } - - fa=s_chan[ch].SB[s_chan[ch].iSBPos++]; // get sample data - - StoreInterpolationVal(ch,fa); // store val for later interpolation - - s_chan[ch].spos -= 0x10000L; - } + if (start - spuMemC >= 0x80000) + start = spuMemC; - if(s_chan[ch].bNoise) - fa=iGetNoiseVal(ch); // get noise val - else fa=iGetInterpolationVal(ch); // get sample val + s_chan[ch].pCurr = start; // store values for next cycle + s_chan[ch].prevflags = flags; - s_chan[ch].sval = (MixADSR(ch) * fa) / 1023; // mix adsr + return ret; +} - if(s_chan[ch].bFMod==2) // fmod freq channel - iFMod[ns]=s_chan[ch].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) +// do block, but ignore sample data +static int skip_block(int ch) +{ + unsigned char *start = s_chan[ch].pCurr; + int flags = start[1]; + int ret = check_irq(ch, start); - if(s_chan[ch].iMute) - s_chan[ch].sval=0; // debug mute - else - { - SSumL[ns]+=(s_chan[ch].sval*s_chan[ch].iLeftVolume)/0x4000L; - SSumR[ns]+=(s_chan[ch].sval*s_chan[ch].iRightVolume)/0x4000L; - } + if(s_chan[ch].prevflags & 1) + start = s_chan[ch].pLoop; - ////////////////////////////////////////////// - // now let us store sound data for reverb + if(flags & 4) + s_chan[ch].pLoop = start; - if(s_chan[ch].bRVBActive) StoreREVERB(ch,ns); - } + start += 16; - //////////////////////////////////////////////// - // ok, go on until 1 ms data of this channel is collected + if(flags & 1) + start = s_chan[ch].pLoop; - s_chan[ch].spos += s_chan[ch].sinc; - } -ENDX: ; - } - } + s_chan[ch].pCurr = start; + s_chan[ch].prevflags = flags; - if(bIRQReturn) // special return for "spu irq - wait for cpu action" - { - bIRQReturn=0; - if(iUseTimer!=2) - { - DWORD dwWatchTime=timeGetTime_spu()+2500; - - while(iSpuAsyncWait && !bEndThread && - timeGetTime_spu()> 32) + 1; + //xprintf("ch%02d: irq sched: %3d %03d\n", + // ch, *upd_samples, *upd_samples * 60 * 263 / 44100); + } +} - if(iDisStereo) // no stereo? - { - int dl, dr; - for (ns = 0; ns < NSSIZE; ns++) - { - SSumL[ns] += MixREVERBLeft(ns); +#define make_do_samples(name, fmod_code, interp_start, interp1_code, interp2_code, interp_end) \ +static noinline int do_samples_##name(int ch, int ns, int ns_to) \ +{ \ + 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; \ + interp_start; \ + \ + for (; ns < ns_to; ns++) \ + { \ + fmod_code; \ + \ + spos += sinc; \ + while (spos >= 0x10000) \ + { \ + fa = SB[sbpos++]; \ + if(sbpos >= 28) \ + { \ + sbpos = 0; \ + d = decode_block(ch); \ + if(d) \ + ret = /*ns_to =*/ ns + 1; \ + } \ + \ + interp1_code; \ + spos -= 0x10000; \ + } \ + \ + interp2_code; \ + } \ + \ + s_chan[ch].sinc = sinc; \ + s_chan[ch].spos = spos; \ + s_chan[ch].iSBPos = sbpos; \ + interp_end; \ + \ + return ret; \ +} - dl = SSumL[ns] / voldiv; SSumL[ns] = 0; - if (dl < -32767) dl = -32767; if (dl > 32767) dl = 32767; +#define fmod_recv_check \ + if(s_chan[ch].bFMod==1 && iFMod[ns]) \ + sinc = FModChangeFrequency(ch,ns) - SSumR[ns] += MixREVERBRight(); +make_do_samples(default, fmod_recv_check, , + StoreInterpolationVal(ch, fa), + ChanBuf[ns] = iGetInterpolationVal(ch, spos), ) +make_do_samples(noint, , fa = s_chan[ch].SB[29], , ChanBuf[ns] = fa, s_chan[ch].SB[29] = fa) - 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); +#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 - d = SSumL[ns] / voldiv; SSumL[ns] = 0; - if (d < -32767) d = -32767; if (d > 32767) d = 32767; - *pS++ = d; +#define simple_interp_get \ + if(sinc<0x10000) /* -> upsampling? */ \ + InterpolateUp(ch); /* --> interpolate up */ \ + else InterpolateDown(ch); /* --> else down */ \ + ChanBuf[ns] = s_chan[ch].SB[29] - SSumR[ns] += MixREVERBRight(); +make_do_samples(simple, , , + simple_interp_store, simple_interp_get, ) - d = SSumR[ns] / voldiv; SSumR[ns] = 0; - if(d < -32767) d = -32767; if(d > 32767) d = 32767; - *pS++ = d; - } +static noinline int do_samples_noise(int ch, int ns, int ns_to) +{ + int level, shift, bit; + int ret = -1, d; + + s_chan[ch].spos += s_chan[ch].sinc * (ns_to - ns); + while (s_chan[ch].spos >= 28*0x10000) + { + d = skip_block(ch); + if (d) + ret = ns_to; + s_chan[ch].spos -= 28*0x10000; + } + + // modified from DrHell/shalma, no fraction + level = (spuCtrl >> 10) & 0x0f; + level = 0x8000 >> level; + + for (; ns < ns_to; ns++) + { + dwNoiseCount += 2; + if (dwNoiseCount >= level) + { + dwNoiseCount -= level; + shift = (dwNoiseVal >> 10) & 0x1f; + bit = (0x69696969 >> shift) & 1; + if (dwNoiseVal & 0x8000) + bit ^= 1; + dwNoiseVal = (dwNoiseVal << 1) | bit; + } + + ChanBuf[ns] = (signed short)dwNoiseVal; + } + + return ret; +} + +#ifdef HAVE_ARMV5 +// asm code; lv and rv must be 0-3fff +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); +#else +static void mix_chan(int start, int count, int lv, int rv) +{ + int *dst = SSumLR + start * 2; + const int *src = ChanBuf + start; + int l, r; + + while (count--) + { + int sval = *src++; - ////////////////////////////////////////////////////// + l = (sval * lv) >> 14; + r = (sval * rv) >> 14; + *dst++ += l; + *dst++ += r; + } +} + +static void mix_chan_rvb(int start, int count, int lv, int rv) +{ + int *dst = SSumLR + start * 2; + int *drvb = sRVBStart + start * 2; + const int *src = ChanBuf + start; + int l, r; + + while (count--) + { + int sval = *src++; + + l = (sval * lv) >> 14; + r = (sval * rv) >> 14; + *dst++ += l; + *dst++ += r; + *drvb++ += l; + *drvb++ += r; + } +} +#endif + +// 0x0800-0x0bff Voice 1 +// 0x0c00-0x0fff Voice 3 +static noinline void do_decode_bufs(int which, int start, int count) +{ + const int *src = ChanBuf + start; + unsigned short *dst = &spuMem[0x800/2 + which*0x400/2]; + int cursor = decode_pos + start; + + while (count-- > 0) + { + cursor &= 0x1ff; + dst[cursor] = *src++; + cursor++; + } + + // decode_pos is updated and irqs are checked later, after voice loop +} + +//////////////////////////////////////////////////////////////////////// +// MAIN SPU FUNCTION +// here is the main job handler... +// basically the whole sound processing is done in this fat func! +//////////////////////////////////////////////////////////////////////// + +void do_samples(unsigned int cycles_to) +{ + const int ns_from = 0; + int ns,ns_to,ns_len; + int volmult = iVolume; + int ch,d,silentch; + int cycle_diff; + + cycle_diff = cycles_to - cycles_played; + if (cycle_diff < -2*1048576 || cycle_diff > 2*1048576) + { + //xprintf("desync %u %d\n", cycles_to, cycle_diff); + cycles_played = cycles_to; + return; + } + + 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 && irqCallback) + if (unlikely((spuCtrl & CTRL_IRQ) && pSpuIrq && pSpuIrq < spuMemC+0x1000)) { - for(ns=0;ns=pMixIrq+(ch*0x400) && pSpuIrqspuMemC+0x3ff) pMixIrq=spuMemC; + //xprintf("decoder irq %x\n", decode_pos); + do_irq(); } } - InitREVERB(); + InitREVERB(ns_to); + + { + silentch=~(dwChannelOn|dwNewChannel); + + //--------------------------------------------------// + //- main channel loop -// + //--------------------------------------------------// + { + for(ch=0;ch pSpuIrq && s_chan[ch].pLoop > pSpuIrq) + continue; + + s_chan[ch].spos += s_chan[ch].sinc * (ns_to - ns_from); + while(s_chan[ch].spos >= 28 * 0x10000) + { + unsigned char *start = s_chan[ch].pCurr; + + skip_block(ch); + if(start == s_chan[ch].pCurr || start - spuMemC < 0x1000) + { + // looping on self or stopped(?) + dwChannelDead |= 1< 16) + MixXA(ns_to); + + /////////////////////////////////////////////////////// + // mix all channels (including reverb) into one buffer + + if(iUseReverb) + REVERBDo(ns_to); + + if((spuCtrl&0x4000)==0) // muted? (rare, don't optimize for this) { - SoundFeedStreamData((unsigned char *)pSpuBuffer, - ((unsigned char *)pS) - ((unsigned char *)pSpuBuffer)); - pS = (short *)pSpuBuffer; - iCycle = 0; + memset(pS, 0, ns_to * 2 * sizeof(pS[0])); + pS += ns_to * 2; + } + else + for (ns = 0; ns < ns_to * 2; ) + { + d = SSumLR[ns]; SSumLR[ns] = 0; + d = d * volmult >> 10; + ssat32_to_16(d); + *pS++ = d; + ns++; + + d = SSumLR[ns]; SSumLR[ns] = 0; + d = d * volmult >> 10; + ssat32_to_16(d); + *pS++ = d; + ns++; } + + cycles_played += ns_to * 768; + + decode_pos = (decode_pos + ns_to) & 0x1ff; } +} + +void schedule_next_irq(void) +{ + unsigned int upd_samples; + int ch; - // end of big main loop... + if (scheduleCallback == NULL) + return; - bThreadEnded = 1; + upd_samples = 44100 / 50; - return 0; + for (ch = 0; ch < MAXCHAN; ch++) + { + if (dwChannelDead & (1 << ch)) + continue; + if ((unsigned long)(pSpuIrq - s_chan[ch].pCurr) > IRQ_NEAR_BLOCKS * 16 + && (unsigned long)(pSpuIrq - s_chan[ch].pLoop) > IRQ_NEAR_BLOCKS * 16) + continue; + + scan_for_irq(ch, &upd_samples); + } + + if (unlikely(pSpuIrq < spuMemC + 0x1000)) + { + int irq_pos = (pSpuIrq - spuMemC) / 2 & 0x1ff; + int left = (irq_pos - decode_pos) & 0x1ff; + if (0 < left && left < upd_samples) { + //xprintf("decode: %3d (%3d/%3d)\n", left, decode_pos, irq_pos); + upd_samples = left; + } + } + + if (upd_samples < 44100 / 50) + 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) return; - iSpuAsyncWait=0; - } + do_samples(cycle); - 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 (spuCtrl & CTRL_IRQ) + schedule_next_irq(); - MAINThread(0); // -> linux high-compat mode + if (flags & 1) { + out_current->feed(pSpuBuffer, (unsigned char *)pS - pSpuBuffer); + pS = (short *)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 (0) { + if (!out_current->busy()) + // cause more samples to be generated + // (and break some games because of bad sync) + cycles_played -= 44100 / 60 / 2 * 768; } + } } // SPU UPDATE... new epsxe func @@ -799,7 +975,6 @@ void CALLBACK SPUasync(unsigned long cycle) void CALLBACK SPUupdate(void) { - SPUasync(0); } // XA AUDIO @@ -813,46 +988,20 @@ void CALLBACK SPUplayADPCMchannel(xa_decode_t *xap) } // CDDA AUDIO -void CALLBACK SPUplayCDDAchannel(short *pcm, int nbytes) +int CALLBACK SPUplayCDDAchannel(short *pcm, int nbytes) { - if (!pcm) return; - if (nbytes<=0) return; + if (!pcm) return -1; + if (nbytes<=0) return -1; - FeedCDDA((unsigned char *)pcm, nbytes); + 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(SSumR,0,NSSIZE*sizeof(int)); // init some mixing buffers - memset(SSumL,0,NSSIZE*sizeof(int)); - memset(iFMod,0,NSSIZE*sizeof(int)); + memset(SSumLR,0,sizeof(SSumLR)); // init some mixing buffers + memset(iFMod,0,sizeof(iFMod)); pS=(short *)pSpuBuffer; // setup soundbuffer pointer - - bEndThread=0; // init thread vars - bThreadEnded=0; - bSpuInit=1; // flag: we are inited - - if(!iUseTimer) // linux: use thread - { - pthread_create(&thread, NULL, MAINThread, NULL); - } -} - -// REMOVETIMER: kill threads/timers -void RemoveTimer(void) -{ - bEndThread=1; // raise flag to end thread - - 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 - } - - bThreadEnded=0; // no more spu is running - bSpuInit=0; } // SETUPSTREAMS: init most of the spu buffers @@ -877,25 +1026,25 @@ void SetupStreams(void) XAFeed = XAStart; CDDAStart = // alloc cdda buffer - (uint32_t *)malloc(16384 * sizeof(uint32_t)); + (uint32_t *)malloc(CDDA_BUFFER_SIZE); CDDAEnd = CDDAStart + 16384; CDDAPlay = CDDAStart; - CDDAFeed = CDDAStart + 1; + CDDAFeed = CDDAStart; for(i=0;i init sustain - s_chan[i].iMute=0; - s_chan[i].iIrqDone=0; + s_chan[i].ADSRX.SustainLevel = 0xf; // -> init sustain + s_chan[i].ADSRX.SustainIncrease = 1; s_chan[i].pLoop=spuMemC; - s_chan[i].pStart=spuMemC; s_chan[i].pCurr=spuMemC; } - pMixIrq=spuMemC; // enable decoded buffer irqs by setting the address + ClearWorkingState(); + + bSpuInit=1; // flag: we are inited } // REMOVESTREAMS: free most buffer @@ -920,20 +1069,13 @@ long CALLBACK SPUinit(void) memset((void *)&rvb, 0, sizeof(REVERBInfo)); InitADSR(); - iVolume = 3; - iReverbOff = -1; spuIrq = 0; spuAddr = 0xffffffff; - bEndThread = 0; - bThreadEnded = 0; spuMemC = (unsigned char *)spuMem; - pMixIrq = 0; + decode_pos = 0; memset((void *)s_chan, 0, (MAXCHAN + 1) * sizeof(SPUCHAN)); pSpuIrq = 0; - //iSPUIRQWait = 0; - lastch = -1; - //ReadConfigSPU(); // read user stuff SetupStreams(); // prepare streaming return 0; @@ -945,7 +1087,6 @@ long CALLBACK SPUopen(void) if (bSPUIsOpen) return 0; // security for some stupid main emus SetupSound(); // setup sound (before init!) - SetupTimer(); // timer for feeding data bSPUIsOpen = 1; @@ -959,8 +1100,7 @@ long CALLBACK SPUclose(void) bSPUIsOpen = 0; // no more open - RemoveTimer(); // no more feeding - RemoveSound(); // no more sound handling + out_current->finish(); // no more sound handling return 0; } @@ -970,6 +1110,7 @@ long CALLBACK SPUshutdown(void) { SPUclose(); RemoveStreams(); // no more streaming + bSpuInit=0; return 0; } @@ -1014,6 +1155,11 @@ void CALLBACK SPUregisterCDDAVolume(void (CALLBACK *CDDAVcallback)(unsigned shor cddavCallback = CDDAVcallback; } +void CALLBACK SPUregisterScheduleCb(void (CALLBACK *callback)(unsigned int)) +{ + scheduleCallback = callback; +} + // COMMON PLUGIN INFO FUNCS /* char * CALLBACK PSEgetLibName(void) @@ -1036,3 +1182,28 @@ char * SPUgetLibInfos(void) return _(libraryInfo); } */ + +// debug +void spu_get_debug_info(int *chans_out, int *run_chans, int *fmod_chans_out, int *noise_chans_out) +{ + int ch = 0, fmod_chans = 0, noise_chans = 0, irq_chans = 0; + + for(;ch