From e11ae5c58194de196c57ba0a2107d6eec5c0394a Mon Sep 17 00:00:00 2001 From: notaz Date: Wed, 27 Jul 2011 01:33:49 +0300 Subject: [PATCH] spu: some refactoring for upcoming optimization attempt --- plugins/dfsound/registers.c | 1 - plugins/dfsound/spu.c | 211 +++++++++++++++++++----------------- 2 files changed, 111 insertions(+), 101 deletions(-) diff --git a/plugins/dfsound/registers.c b/plugins/dfsound/registers.c index c7905255..c36c27ea 100644 --- a/plugins/dfsound/registers.c +++ b/plugins/dfsound/registers.c @@ -376,7 +376,6 @@ unsigned short CALLBACK SPUreadRegister(unsigned long reg) case 14: // get loop address { const int ch=(r>>4)-0xc0; - if(s_chan[ch].pLoop==NULL) return 0; return (unsigned short)((s_chan[ch].pLoop-spuMemC)>>3); } } diff --git a/plugins/dfsound/spu.c b/plugins/dfsound/spu.c index 0f952fbb..e289b861 100644 --- a/plugins/dfsound/spu.c +++ b/plugins/dfsound/spu.c @@ -423,6 +423,102 @@ INLINE int iGetInterpolationVal(int ch) return fa; } +static int decode_block(int ch) +{ + unsigned char *start; + unsigned int nSample; + int predict_nr,shift_factor,flags,d,s; + int fa,s_1,s_2; + int ret = 0; + + s_chan[ch].iSBPos=0; + + start=s_chan[ch].pCurr; // set up the current pos + if (start == (unsigned char*)-1) // special "stop" sign + { + dwChannelOn&=~(1< turn everything off + s_chan[ch].bStop=1; + s_chan[ch].ADSRX.EnvelopeVol=0; + return 0; // -> and done for this channel + } + + //////////////////////////////////////////// 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))) + { + irqCallback(); // -> call main emu + ret = 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 && flags!=7) // PETE: if we don't check exactly for 3, loop hang ups will happen (DQ4, for example) + { + start = (unsigned char*)-1; + } + else + { + start = s_chan[ch].pLoop; + } + } + + if (start - spuMemC >= 0x80000) + start = (unsigned char*)-1; + + s_chan[ch].pCurr=start; // store values for next cycle + s_chan[ch].s_1=s_1; + s_chan[ch].s_2=s_2; + + return ret; +} + //////////////////////////////////////////////////////////////////////// // MAIN SPU FUNCTION // here is the main job handler... thread, timer or direct func call @@ -440,14 +536,13 @@ INLINE int iGetInterpolationVal(int ch) static void *MAINThread(void *arg) { - int s_1,s_2,fa,ns,ns_from,ns_to; + int fa,ns,ns_from,ns_to; #if !defined(_MACOSX) && !defined(__arm__) int voldiv = iVolume; #else const int voldiv = 2; #endif - unsigned char * start;unsigned int nSample; - int ch,predict_nr,shift_factor,flags,d,s; + int ch,d; int bIRQReturn=0; while(!bEndThread) // until we are shutting down @@ -484,7 +579,7 @@ static void *MAINThread(void *arg) ch=0; if(lastch>=0) // will be -1 if no continue is pending { - ch=lastch; ns_from=lastns+1; lastch=-1; // -> setup all kind of vars to continue + ch=lastch; ns_from=lastns; lastch=-1; // -> setup all kind of vars to continue } //--------------------------------------------------// @@ -503,6 +598,8 @@ static void *MAINThread(void *arg) { int sval; + if(!(dwChannelOn&(1< option: wait after irq for main emu { - dwChannelOn&=~(1< turn everything off - s_chan[ch].ADSRX.EnvelopeVol=0; - goto ENDX; // -> and done for this channel + bIRQReturn=1; + lastch=ch; + lastns=ns_to=ns; + goto ENDX; // do remaining chans unil this ns } - - 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))) - { - 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 && flags!=7) // PETE: if we don't check exactly for 3, loop hang ups will happen (DQ4, for example) - || s_chan[ch].pLoop==NULL) // and checking if pLoop is set avoids crashes, yeah - { - start = (unsigned char*)-1; - // Actua Soccer 2, Jungle Book, other games that check for this condition - s_chan[ch].ADSRX.EnvelopeVol = 0; - } - else - { - start = s_chan[ch].pLoop; - } - } - - if (start - spuMemC >= 0x80000) - start = (unsigned char*)-1; - - s_chan[ch].pCurr=start; // store values for next cycle - s_chan[ch].s_1=s_1; - s_chan[ch].s_2=s_2; } fa=s_chan[ch].SB[s_chan[ch].iSBPos++]; // get sample data @@ -618,7 +628,7 @@ static void *MAINThread(void *arg) fa=iGetNoiseVal(ch); // get noise val else fa=iGetInterpolationVal(ch); // get sample val - sval = (MixADSR(ch) * fa) / 1023; // mix adsr + sval = (MixADSR(ch) * fa) / 1024; // mix adsr if(s_chan[ch].bFMod==2) // fmod freq channel iFMod[ns]=sval; // -> store 1T sample data, use that to do fmod on next channel @@ -641,12 +651,13 @@ static void *MAINThread(void *arg) s_chan[ch].spos += s_chan[ch].sinc; } -ENDX: ; +ENDX: ; } } - if(bIRQReturn) // special return for "spu irq - wait for cpu action" + if(bIRQReturn && iSPUIRQWait) // special return for "spu irq - wait for cpu action" { + iSpuAsyncWait=1; bIRQReturn=0; if(iUseTimer!=2) { -- 2.39.5