X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=pcsx_rearmed.git;a=blobdiff_plain;f=plugins%2Fdfsound%2Fspu.c;h=07bc4b3789090b7617fc9a0db7c35b325aa7f9cc;hp=b71b9142fe9b827a982b02a23270de583007a6fe;hb=215ff9e69c0b845f24e7a3aa9faeef06d9276145;hpb=367b1b93e323bd0a8e1b5ad59cc07a4e7f296fd6 diff --git a/plugins/dfsound/spu.c b/plugins/dfsound/spu.c index b71b9142..07bc4b37 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, 2010-2012,2014 + ***************************************************************************/ /*************************************************************************** * * @@ -15,25 +18,35 @@ * * ***************************************************************************/ +#ifndef _WIN32 +#include // gettimeofday in xa.c +#endif #include "stdafx.h" #define _IN_SPU #include "externals.h" -#include "cfg.h" -#include "dsoundoss.h" -#include "regs.h" - -#ifdef ENABLE_NLS -#include -#include -#define _(x) gettext(x) -#define N_(x) (x) +#include "registers.h" +#include "out.h" +#include "arm_features.h" +#include "spu_config.h" + +#ifdef __ARM_ARCH_7A__ + #define ssat32_to_16(v) \ + asm("ssat %0,#16,%1" : "=r" (v) : "r" (v)) #else -#define _(x) (x) -#define N_(x) (x) + #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) @@ -49,70 +62,30 @@ 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 -// 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=3; -int iXAPitch=1; -int iUseTimer=2; -int iSPUIRQWait=1; -int iDebugMode=0; -int iRecordMode=0; -int iUseReverb=2; -int iUseInterpolation=2; -int iDisStereo=0; +SPUInfo spu; +SPUConfig spu_config; // 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 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 - -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[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]; +int SSumLR[NSSIZE*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 +#define CDDA_BUFFER_SIZE (16384 * sizeof(uint32_t)) // must be power of 2 //////////////////////////////////////////////////////////////////////// // CODE AREA @@ -202,9 +175,10 @@ 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]; @@ -227,8 +201,8 @@ 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 gval0 (((short*)(&s_chan[ch].SB[29]))[gpos&3]) +#define gval(x) ((int)((short*)(&s_chan[ch].SB[29]))[(gpos+x)&3]) #include "gauss_i.h" @@ -236,6 +210,26 @@ INLINE void InterpolateDown(int ch) #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_IRQ) && pos == spu.pSpuIrq) + { + //printf("ch%d irq %04x\n", ch, pos - spu.spuMemC); + do_irq(); + return 1; + } + return 0; +} + //////////////////////////////////////////////////////////////////////// // START SOUND... called by main thread to setup a new sound on a channel //////////////////////////////////////////////////////////////////////// @@ -245,88 +239,45 @@ INLINE void StartSound(int ch) StartADSR(ch); StartREVERB(ch); - s_chan[ch].pCurr=s_chan[ch].pStart; // set sample start + // 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; - s_chan[ch].s_1=0; // init mixing vars - s_chan[ch].s_2=0; - s_chan[ch].iSBPos=28; - - s_chan[ch].bNew=0; // init channel flags - s_chan[ch].bStop=0; - s_chan[ch].bOn=1; + s_chan[ch].SB[26]=0; // init mixing vars + s_chan[ch].SB[27]=0; + s_chan[ch].iSBPos=27; + s_chan[ch].SB[28]=0; s_chan[ch].SB[29]=0; // init our interpolation helpers s_chan[ch].SB[30]=0; + s_chan[ch].SB[31]=0; + s_chan[ch].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 - - dwNewChannel&=~(1< 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) +INLINE int 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; - if(iUseInterpolation==1) // freq change in simple interpolation mode - s_chan[ch].SB[32]=1; + sinc=NP<<4; // calc frequency + if(spu_config.iUseInterpolation==1) // freq change in simple interpolation mode + 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; +} //////////////////////////////////////////////////////////////////////// @@ -336,14 +287,9 @@ 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 + if(spu_config.iUseInterpolation>=2) // gauss/cubic interpolation { int gpos = s_chan[ch].SB[28]; gval0 = fa; @@ -351,7 +297,7 @@ INLINE void StoreInterpolationVal(int ch,int fa) s_chan[ch].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' @@ -365,19 +311,19 @@ INLINE void StoreInterpolationVal(int ch,int fa) //////////////////////////////////////////////////////////////////////// -INLINE int iGetInterpolationVal(int ch) +INLINE int iGetInterpolationVal(int ch, int spos) { int fa; if(s_chan[ch].bFMod==2) return s_chan[ch].SB[29]; - switch(iUseInterpolation) + switch(spu_config.iUseInterpolation) { //--------------------------------------------------// 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; @@ -396,9 +342,9 @@ 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; @@ -423,362 +369,620 @@ 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; -static void *MAINThread(void *arg) + 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 int decode_block(int ch) { - int s_1,s_2,fa,ns; -#ifndef _MACOSX - int voldiv = iVolume; + unsigned char *start; + int predict_nr, shift_factor, flags; + int ret = 0; + + start = s_chan[ch].pCurr; // set up the current pos + if (start == spu.spuMemC) // ? + ret = 1; + + if (s_chan[ch].prevflags & 1) // 1: stop/loop + { + if (!(s_chan[ch].prevflags & 2)) + ret = 1; + + start = s_chan[ch].pLoop; + } + else + check_irq(ch, start); // hack, see check_irq below.. + + predict_nr = (int)start[0]; + shift_factor = predict_nr & 0xf; + predict_nr >>= 4; + + decode_block_data(s_chan[ch].SB, start + 2, predict_nr, shift_factor); + + flags = start[1]; + if (flags & 4) + s_chan[ch].pLoop = start; // loop adress + + start += 16; + + if (flags & 1) { // 1: stop/loop + start = s_chan[ch].pLoop; + check_irq(ch, start); // hack.. :( + } + + if (start - spu.spuMemC >= 0x80000) + start = spu.spuMemC; + + s_chan[ch].pCurr = start; // store values for next cycle + s_chan[ch].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; + int ret = 0; + + if (s_chan[ch].prevflags & 1) { + if (!(s_chan[ch].prevflags & 2)) + ret = 1; + + start = s_chan[ch].pLoop; + } + else + check_irq(ch, start); + + flags = start[1]; + if (flags & 4) + s_chan[ch].pLoop = start; + + start += 16; + + if (flags & 1) { + start = s_chan[ch].pLoop; + check_irq(ch, start); + } + + s_chan[ch].pCurr = start; + s_chan[ch].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) +{ + int pos, sinc, sinc_inv, end; + unsigned char *block; + int flags; + + block = s_chan[ch].pCurr; + pos = s_chan[ch].spos; + sinc = s_chan[ch].sinc; + end = pos + *upd_samples * sinc; + + pos += (28 - s_chan[ch].iSBPos) << 16; + while (pos < end) + { + if (block == spu.pSpuIrq) + break; + flags = block[1]; + block += 16; + if (flags & 1) { // 1: stop/loop + block = s_chan[ch].pLoop; + if (block == spu.pSpuIrq) // hack.. (see decode_block) + break; + } + pos += 28 << 16; + } + + if (pos < end) + { + sinc_inv = s_chan[ch].sinc_inv; + if (sinc_inv == 0) + sinc_inv = s_chan[ch].sinc_inv = (0x80000000u / (uint32_t)sinc) << 1; + + pos -= s_chan[ch].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 noinline int do_samples_##name(int ch, 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 ns, d, fa; \ + int ret = ns_to; \ + interp_start; \ + \ + for (ns = 0; 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 && ns < ret) \ + ret = ns; \ + } \ + \ + 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; \ +} + +#define fmod_recv_check \ + if(s_chan[ch].bFMod==1 && iFMod[ns]) \ + sinc = FModChangeFrequency(ch,ns) + +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) + +#define simple_interp_store \ + 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] + +make_do_samples(simple, , , + simple_interp_store, simple_interp_get, ) + +static int do_samples_skip(int ch, int ns_to) +{ + int ret = ns_to, ns, d; + + s_chan[ch].spos += s_chan[ch].iSBPos << 16; + + for (ns = 0; ns < ns_to; ns++) + { + s_chan[ch].spos += s_chan[ch].sinc; + while (s_chan[ch].spos >= 28*0x10000) + { + d = skip_block(ch); + if (d && ns < ret) + ret = ns; + s_chan[ch].spos -= 28*0x10000; + } + } + + s_chan[ch].iSBPos = s_chan[ch].spos >> 16; + s_chan[ch].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 = (ctrl >> 10) & 0x0f; + level = 0x8000 >> level; + + for (ns = 0; ns < ns_to; ns++) + { + counter += 2; + if (counter >= level) + { + counter -= level; + shift = (val >> 10) & 0x1f; + bit = (0x69696969 >> shift) & 1; + bit ^= (val >> 15) & 1; + val = (val << 1) | bit; + } + + ChanBuf[ns] = (signed short)val; + } + + *dwNoiseCount = counter; + *dwNoiseVal = val; +} + +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 start, int count, int lv, int rv); +extern void mix_chan_rvb(int start, int count, int lv, int rv, int *rvb); #else - const int voldiv = 2; +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 *rvb) +{ + int *dst = SSumLR + start * 2; + int *drvb = rvb + 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 - unsigned char * start;unsigned int nSample; - int ch,predict_nr,shift_factor,flags,d,s; - int bIRQReturn=0; - while(!bEndThread) // until we are shutting down +// 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; + + while (count-- > 0) { - // 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 + cursor &= 0x1ff; + dst[cursor] = *src++; + cursor++; + } - while(!iSecureStart && !bEndThread && // no new start? no thread end? - (SoundGetBytesBuffered()>TESTSIZE)) // and still enuff data in sound buffer? - { - iSecureStart=0; // reset secure + // decode_pos is updated and irqs are checked later, after voice loop +} - if(iUseTimer) return 0; // linux no-thread mode? bye - usleep(PAUSE_L); // else sleep for x ms (linux) +static void do_silent_chans(int ns_to, int silentch) +{ + int ch; - if(dwNewChannel) iSecureStart=1; // if a new channel kicks in (or, of course, sound buffer runs low), we will leave the loop - } + for (ch = 0; ch < MAXCHAN; ch++) + { + if (!(silentch & (1< spu.pSpuIrq && s_chan[ch].pLoop > spu.pSpuIrq) + continue; - //--------------------------------------------------// continue from irq handling in timer mode? + s_chan[ch].spos += s_chan[ch].iSBPos << 16; + s_chan[ch].iSBPos = 0; - if(lastch>=0) // will be -1 if no continue is pending + s_chan[ch].spos += s_chan[ch].sinc * ns_to; + while (s_chan[ch].spos >= 28 * 0x10000) { - ch=lastch; ns=lastns; lastch=-1; // -> setup all kind of vars to continue - goto GOON; // -> directly jump to the continue point - } + unsigned char *start = s_chan[ch].pCurr; - //--------------------------------------------------// - //- main channel loop -// - //--------------------------------------------------// - { - for(ch=0;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; - } - } - } - - //////////////////////////////////////////// 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; - - 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() store 1T sample data, use that to do fmod on next channel - else // no fmod freq channel - { - ////////////////////////////////////////////// - // ok, left/right sound volume (psx volume goes from 0 ... 0x3fff) - - if(s_chan[ch].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; - } - - ////////////////////////////////////////////// - // now let us store sound data for reverb - - if(s_chan[ch].bRVBActive) StoreREVERB(ch,ns); - } - - //////////////////////////////////////////////// - // ok, go on until 1 ms data of this channel is collected - - ns++; - s_chan[ch].spos += s_chan[ch].sinc; - - } -ENDX: ; + // looping on self or stopped(?) + spu.dwChannelDead |= 1<>= 1) // loop em all... + { + if (!(mask & 1)) continue; // channel not playing? next + + if (s_chan[ch].bNoise) + d = do_samples_noise(ch, ns_to); + else if (s_chan[ch].bFMod == 2 + || (s_chan[ch].bFMod == 0 && spu_config.iUseInterpolation == 0)) + d = do_samples_noint(ch, ns_to); + else if (s_chan[ch].bFMod == 0 && spu_config.iUseInterpolation == 1) + d = do_samples_simple(ch, ns_to); + else + d = do_samples_default(ch, ns_to); + + d = MixADSR(ch, d); + if (d < ns_to) { + spu.dwChannelOn &= ~(1 << ch); + s_chan[ch].bStop = 1; + s_chan[ch].ADSRX.EnvelopeVol = 0; + memset(&ChanBuf[d], 0, (ns_to - d) * sizeof(ChanBuf[0])); + } - dl = SSumL[ns] / voldiv; SSumL[ns] = 0; - if (dl < -32767) dl = -32767; if (dl > 32767) dl = 32767; + if (ch == 1 || ch == 3) + { + do_decode_bufs(spu.spuMem, ch/2, ns_to, spu.decode_pos); + spu.decode_dirty_ch |= 1 << ch; + } - SSumR[ns] += MixREVERBRight(); + if (s_chan[ch].bFMod == 2) // fmod freq channel + memcpy(iFMod, &ChanBuf, ns_to * sizeof(iFMod[0])); + if (s_chan[ch].bRVBActive) + mix_chan_rvb(0, ns_to, s_chan[ch].iLeftVolume, s_chan[ch].iRightVolume, spu.sRVBStart); + else + mix_chan(0, ns_to, s_chan[ch].iLeftVolume, s_chan[ch].iRightVolume); + } +} - 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); +//////////////////////////////////////////////////////////////////////// +// MAIN SPU FUNCTION +// here is the main job handler... +//////////////////////////////////////////////////////////////////////// + +void do_samples_finish(int ns_to, int silentch); - d = SSumL[ns] / voldiv; SSumL[ns] = 0; - if (d < -32767) d = -32767; if (d > 32767) d = 32767; - *pS++ = d; +void do_samples(unsigned int cycles_to) +{ + unsigned int mask; + int ch, ns_to; + int silentch; + int cycle_diff; - SSumR[ns] += MixREVERBRight(); + 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; + } - d = SSumR[ns] / voldiv; SSumR[ns] = 0; - if(d < -32767) d = -32767; if(d > 32767) d = 32767; - *pS++ = d; - } + 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((spu.spuCtrl & CTRL_IRQ) + && spu.pSpuIrq < spu.spuMemC+0x1000)) { - for(ns=0;ns=pMixIrq+(ch*0x400) && pSpuIrqspuMemC+0x3ff) pMixIrq=spuMemC; + //xprintf("decoder irq %x\n", spu.decode_pos); + do_irq(); } } - InitREVERB(); + silentch = ~(spu.dwChannelOn|spu.dwNewChannel); + + mask = spu.dwNewChannel & 0xffffff; + for (ch = 0; mask != 0; ch++, mask >>= 1) { + if (mask & 1) + StartSound(ch); + } + + if (spu.dwChannelOn == 0) + InitREVERB(ns_to); + else { + do_channels(ns_to); + } + + do_samples_finish(ns_to, silentch); - // feed the sound - // wanna have around 1/60 sec (16.666 ms) updates - if (iCycle++ > 16) + // 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); + + spu.cycles_played += ns_to * 768; + spu.decode_pos = (spu.decode_pos + ns_to) & 0x1ff; +} + +void do_samples_finish(int ns_to, int silentch) +{ + int volmult = spu_config.iVolume; + int ns; + int d; + + if(unlikely(silentch & spu.decode_dirty_ch & (1<<1))) // must clear silent channel decode buffers { - 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... + //---------------------------------------------------// + // mix XA infos (if any) + + MixXA(ns_to, spu.decode_pos); + + /////////////////////////////////////////////////////// + // mix all channels (including reverb) into one buffer - bThreadEnded = 1; + if(spu_config.iUseReverb) + REVERBDo(ns_to); - return 0; + if((spu.spuCtrl&0x4000)==0) // muted? (rare, don't optimize for this) + { + memset(spu.pS, 0, ns_to * 2 * sizeof(spu.pS[0])); + spu.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); + *spu.pS++ = d; + ns++; + + d = SSumLR[ns]; SSumLR[ns] = 0; + d = d * volmult >> 10; + 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 - s_chan[ch].pCurr) > IRQ_NEAR_BLOCKS * 16 + && (unsigned long)(spu.pSpuIrq - s_chan[ch].pLoop) > IRQ_NEAR_BLOCKS * 16) + 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<=64) 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 (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; + + 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 @@ -792,7 +996,6 @@ void CALLBACK SPUasync(unsigned long cycle) void CALLBACK SPUupdate(void) { - SPUasync(0); } // XA AUDIO @@ -806,46 +1009,20 @@ 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)); - 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; + memset(SSumLR,0,sizeof(SSumLR)); // init some mixing buffers + memset(iFMod,0,sizeof(iFMod)); + spu.pS=(short *)spu.pSpuBuffer; // setup soundbuffer pointer } // SETUPSTREAMS: init most of the spu buffers @@ -853,55 +1030,46 @@ void SetupStreams(void) { int i; - pSpuBuffer=(unsigned char *)malloc(32768); // alloc mixing buffer - - if(iUseReverb==1) i=88200*2; - else i=NSSIZE*2; + spu.pSpuBuffer = (unsigned char *)malloc(32768); // alloc mixing buffer + spu.sRVBStart = (int *)malloc(NSSIZE*2*4); // alloc reverb buffer + memset(spu.sRVBStart,0,NSSIZE*2*4); - sRVBStart = (int *)malloc(i*4); // alloc reverb buffer - memset(sRVBStart,0,i*4); - sRVBEnd = sRVBStart + i; - sRVBPlay = sRVBStart; - - XAStart = // alloc xa buffer + spu.XAStart = // alloc xa buffer (uint32_t *)malloc(44100 * sizeof(uint32_t)); - XAEnd = XAStart + 44100; - XAPlay = XAStart; - XAFeed = XAStart; + spu.XAEnd = spu.XAStart + 44100; + spu.XAPlay = spu.XAStart; + spu.XAFeed = spu.XAStart; - CDDAStart = // alloc cdda buffer - (uint32_t *)malloc(16384 * sizeof(uint32_t)); - CDDAEnd = CDDAStart + 16384; - CDDAPlay = CDDAStart; - CDDAFeed = CDDAStart + 1; + spu.CDDAStart = // alloc cdda buffer + (uint32_t *)malloc(CDDA_BUFFER_SIZE); + spu.CDDAEnd = spu.CDDAStart + 16384; + spu.CDDAPlay = spu.CDDAStart; + spu.CDDAFeed = spu.CDDAStart; for(i=0;i init sustain - s_chan[i].iMute=0; - s_chan[i].iIrqDone=0; - s_chan[i].pLoop=spuMemC; - s_chan[i].pStart=spuMemC; - s_chan[i].pCurr=spuMemC; + s_chan[i].ADSRX.SustainLevel = 0xf; // -> init sustain + s_chan[i].ADSRX.SustainIncrease = 1; + s_chan[i].pLoop=spu.spuMemC; + s_chan[i].pCurr=spu.spuMemC; } - pMixIrq=spuMemC; // enable decoded buffer irqs by setting the address + ClearWorkingState(); + + spu.bSpuInit=1; // flag: we are inited } // 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; + free(spu.pSpuBuffer); // free mixing buffer + spu.pSpuBuffer = NULL; + free(spu.sRVBStart); // free reverb buffer + spu.sRVBStart = NULL; + free(spu.XAStart); // free XA buffer + spu.XAStart = NULL; + free(spu.CDDAStart); // free CDDA buffer + spu.CDDAStart = NULL; } // INIT/EXIT STUFF @@ -909,38 +1077,31 @@ void RemoveStreams(void) // SPUINIT: this func will be called first by the main emu long CALLBACK SPUinit(void) { - spuMemC = (unsigned char *)spuMem; // just small setup + spu.spuMemC = (unsigned char *)spu.spuMem; // just small setup 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; - memset((void *)s_chan, 0, (MAXCHAN + 1) * sizeof(SPUCHAN)); - pSpuIrq = 0; - iSPUIRQWait = 0; - lastch = -1; - - ReadConfigSPU(); // read user stuff + spu.spuAddr = 0xffffffff; + spu.decode_pos = 0; + memset((void *)s_chan, 0, sizeof(s_chan)); + spu.pSpuIrq = spu.spuMemC; + SetupStreams(); // prepare streaming + if (spu_config.iVolume == 0) + spu_config.iVolume = 768; // 1024 is 1.0 + 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; } @@ -948,12 +1109,11 @@ long CALLBACK SPUopen(void) // 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; } @@ -963,6 +1123,7 @@ long CALLBACK SPUshutdown(void) { SPUclose(); RemoveStreams(); // no more streaming + spu.bSpuInit=0; return 0; } @@ -979,7 +1140,7 @@ long CALLBACK SPUconfigure(void) #ifdef _MACOSX DoConfiguration(); #else - StartCfgTool("CFG"); +// StartCfgTool("CFG"); #endif return 0; } @@ -990,7 +1151,7 @@ void CALLBACK SPUabout(void) #ifdef _MACOSX DoAbout(); #else - StartCfgTool("ABOUT"); +// StartCfgTool("ABOUT"); #endif } @@ -999,12 +1160,17 @@ void CALLBACK SPUabout(void) // 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)) { - cddavCallback = CDDAVcallback; + spu.cddavCallback = CDDAVcallback; +} + +void CALLBACK SPUregisterScheduleCb(void (CALLBACK *callback)(unsigned int)) +{ + spu.scheduleCallback = callback; } // COMMON PLUGIN INFO FUNCS @@ -1029,3 +1195,28 @@ 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