X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=fceu.git;a=blobdiff_plain;f=sound.c;h=8cdde0e6bb3ca065b85c3dcfce32110d5076e107;hp=61c8fcdcedb31bbb034dbf3e510c177e86fa50ff;hb=9115e7d2b5e5b8dc00774fe92db97f1d02b2fee1;hpb=4a1bf31bcd80812fe491d3255646e43c304116b9 diff --git a/sound.c b/sound.c index 61c8fcd..8cdde0e 100644 --- a/sound.c +++ b/sound.c @@ -25,7 +25,7 @@ /******* routines. A few ideas were inspired */ /******* by code from Marat Fayzullin's EMUlib */ /******* */ -/********************************************************/ +/********************************************************/ #include #include @@ -61,8 +61,8 @@ uint8 sqnon=0; #undef printf uint16 nreg; - -int32 lengthcount[4]; + +int32 lengthcount[4]; extern int soundvol; @@ -108,7 +108,7 @@ int32 PCMIRQCount; uint8 PCMBitIndex=0; uint32 PCMAddressIndex=0; int32 PCMSizeIndex=0; -uint8 PCMBuffer=0; +uint8 PCMBuffer=0; int vdis=0; static void Dummyfunc(void) {}; @@ -131,9 +131,9 @@ static void CalcDPCMIRQ(void) freq=(NTSCPCMTable[PSG[0x10]&0xF]<<4); cycles=(((PSG[0x13]<<4)+1)); - cycles*=freq/14; + cycles*=freq/14; honk=((PSG[0x13]<<4)+1)*freq; - honk-=cycles; + honk-=cycles; //if(PAL) honk/=107; //else honk/=(double)113.66666666; PCMIRQCount=honk*48; @@ -144,9 +144,9 @@ static void CalcDPCMIRQ(void) static void PrepDPCM() { - PCMAddressIndex=0x4000+(PSG[0x12]<<6); + PCMAddressIndex=0x4000+(PSG[0x12]<<6); PCMSizeIndex=(PSG[0x13]<<4)+1; - PCMBitIndex=0; + PCMBitIndex=0; //PCMBuffer=ARead[0x8000+PCMAddressIndex](0x8000+PCMAddressIndex); if(PAL) PCMfreq=PALPCMTable[PSG[0x10]&0xF]; @@ -211,12 +211,12 @@ static DECLFW(Write_PSG) curfreq[0]&=0xFF00; curfreq[0]|=V; break; - case 0x3: + case 0x3: if(PSG[0x15]&1) { DoSQ1(); lengthcount[0]=lengthtable[(V>>3)&0x1f]; - sqnon|=1; + sqnon|=1; } sweepon[0]=PSG[1]&0x80; curfreq[0]=PSG[0x2]|((V&7)<<8); @@ -227,7 +227,7 @@ static DECLFW(Write_PSG) sqacc[0]=((int64)curfreq[0]+1)<<50; break; - case 0x4: + case 0x4: DoSQ2(); if(V&0x10) realvolume[1]=V&0xF; @@ -240,7 +240,7 @@ static DECLFW(Write_PSG) curfreq[1]&=0xFF00; curfreq[1]|=V; break; - case 0x7: + case 0x7: if(PSG[0x15]&2) { DoSQ2(); @@ -248,14 +248,14 @@ static DECLFW(Write_PSG) sqnon|=2; } sweepon[1]=PSG[0x5]&0x80; - curfreq[1]=PSG[0x6]|((V&7)<<8); + curfreq[1]=PSG[0x6]|((V&7)<<8); decvolume[1]=0xF; DecCountTo1[1]=(PSG[0x4]&0xF)+1; SweepCount[1]=((PSG[0x5]>>4)&7)+1; DutyCount[1]=0; sqacc[1]=((int64)curfreq[1]+1)<<50; break; - case 0x8: + case 0x8: DoTriangle(); if(laster&0x80) { @@ -292,13 +292,13 @@ static DECLFW(Write_PSG) lengthcount[3]=lengthtable[(V>>3)&0x1f]; } decvolume[2]=0xF; - DecCountTo1[2]=(PSG[0xC]&0xF)+1; + DecCountTo1[2]=(PSG[0xC]&0xF)+1; break; case 0x10:DoPCM(); if(!(V&0x80)) X6502_IRQEnd(FCEU_IQDPCM); break; - case 0x15: + case 0x15: { int t=V^PSG[0x15]; @@ -328,14 +328,14 @@ static DECLFW(Write_PSG) X6502_IRQEnd(FCEU_IQDPCM); } break; - case 0x17: + case 0x17: V&=0xC0; - fcnt=0; + fcnt=0; if(V&0x80) FrameSoundUpdate(); fhcnt=fhinc; X6502_IRQEnd(FCEU_IQFCOUNT); - SIRQStat&=~0x40; + SIRQStat&=~0x40; break; } PSG[A]=V; @@ -384,7 +384,7 @@ static void FASTAPASS(1) FrameSoundStuff(int V) DoTriangle(); sqnon&=~4; } - } + } } for(P=0;P<2;P++) @@ -395,7 +395,7 @@ static void FASTAPASS(1) FrameSoundStuff(int V) { if(lengthcount[P]>0) { - lengthcount[P]--; + lengthcount[P]--; if(lengthcount[P]<=0) { sqnon&=~(P+1); @@ -410,14 +410,14 @@ static void FASTAPASS(1) FrameSoundStuff(int V) { int32 mod=0; - if(SweepCount[P]>0) SweepCount[P]--; + if(SweepCount[P]>0) SweepCount[P]--; if(SweepCount[P]<=0) { SweepCount[P]=((PSG[(P<<2)+0x1]>>4)&7)+1; //+1; { if(PSG[(P<<2)+0x1]&0x8) { - mod-=(P^1)+((curfreq[P])>>(PSG[(P<<2)+0x1]&7)); + mod-=(P^1)+((curfreq[P])>>(PSG[(P<<2)+0x1]&7)); if(curfreq[P] && (PSG[(P<<2)+0x1]&7)/* && sweepon[P]&0x80*/) { @@ -442,7 +442,7 @@ static void FASTAPASS(1) FrameSoundStuff(int V) } } } - } + } } if(PSG[0x15]&0x8 && sqnon&8) @@ -462,7 +462,7 @@ static void FASTAPASS(1) FrameSoundStuff(int V) case 0: /* Envelope decay + linear counter */ if(!trimode) - { + { laster=0; if(tricoop) { @@ -569,7 +569,7 @@ static void RDoPCM(void) uint32 out=PSG[0x11]<<3; start=ChannelBC[4]; - end=(timestamp<<16)/soundtsinc; + end=(timestamp<<16)/soundtsinc; if(end<=start) return; ChannelBC[4]=end; @@ -737,7 +737,7 @@ static void RDoTriangle(void) int64 freq=(((PSG[0xa]|((PSG[0xb]&7)<<8))+1)); start=ChannelBC[2]; - end=(timestamp<<16)/soundtsinc; + end=(timestamp<<16)/soundtsinc; if(end<=start) return; ChannelBC[2]=end; @@ -760,8 +760,8 @@ static void RDoTriangle(void) } else { - static int64 triacc=0; - static uint8 tc=0; + static int64 triacc=0; + static uint8 tc=0; freq<<=49; for(V=start;V>4]+=outo; if(count[3]>=inc) - { - uint8 feedback; + { + uint8 feedback; feedback=((nreg>>8)&1)^((nreg>>14)&1); nreg=(nreg<<1)+feedback; @@ -850,19 +850,19 @@ static void RDoNoise(void) } void SetNESSoundMap(void) -{ +{ SetWriteHandler(0x4000,0x4013,Write_PSG); SetWriteHandler(0x4011,0x4011,Write0x11); SetWriteHandler(0x4015,0x4015,Write_PSG); - SetWriteHandler(0x4017,0x4017,Write_PSG); + SetWriteHandler(0x4017,0x4017,Write_PSG); SetReadHandler(0x4015,0x4015,Read_PSG); } static int32 WaveNSF[256]; -int64 highp; // 0 through 65536, 0 = no high pass, 65536 = max high pass +int32 highp; // 0 through 65536, 0 = no high pass, 65536 = max high pass -int64 lowp; // 0 through 65536, 65536 = max low pass(total attenuation) +int32 lowp; // 0 through 65536, 65536 = max low pass(total attenuation) // 65536 = no low pass static void FilterSound(uint32 *in, int32 *out, int16 *outMono, int count) { @@ -871,7 +871,7 @@ static void FilterSound(uint32 *in, int32 *out, int16 *outMono, int count) //int16* tmp; //int16* outorig=out; //int32 prev=-99999; - for(;count;count--,in++,out++)//,index++) + for(;count;count--,in++)//,out++)//,index++) { int64 diff; @@ -880,7 +880,7 @@ static void FilterSound(uint32 *in, int32 *out, int16 *outMono, int count) acc+=(diff*highp)>>16; acc2+=((diff-acc2)*lowp)>>16; *in=0; - + // don't change the sound here // *out=(acc2*(int64)FSettings.SoundVolume)>>(24+16); // volume, 4 times louder by default?? @@ -891,23 +891,23 @@ static void FilterSound(uint32 *in, int32 *out, int16 *outMono, int count) if(*out<-32767) *out=-32767; if(*out>32767) *out=32767; // go one back - + // do MONO - tmp=(int16 *)(out-1); + tmp=(int16 *)(out-1); // don't do this the first time if (prev == -99999) continue; // the middle one should be interpolated - tmp[1]=(int16)((*out + prev) >> 1); - prev = *out; + tmp[1]=(int16)((*out + prev) >> 1); + prev = *out; */ //outMono[index] = (int16)*out; *outMono = (int16)(acc2 >> 24); //if(*outMono<-16384) *outMono=-16384; //if(*outMono>16384) *outMono=16384; outMono++; - + // out=((int64)(acc2>>24)*(int64)FSettings.SoundVolume)>>16; //acc2>>24; - + } // do one more } @@ -955,13 +955,13 @@ int FlushEmulateSound(void) if(end&0xF) Wave[0]=Wave[(end>>4)]; - Wave[(end>>4)]=0; + Wave[(end>>4)]=0; nosoundo: for(x=0;x<5;x++) ChannelBC[x]=end&0xF; timestampbase+=timestamp; - timestamp=(soundtsinc*(end&0xF))>>16; + timestamp=(soundtsinc*(end&0xF))>>16; timestampbase-=timestamp; return(end>>4); } @@ -999,7 +999,7 @@ void ResetSound(void) void SetSoundVariables(void) { - int x; + int x; fhinc=PAL?16626:14915; // *2 CPU clock rate fhinc*=24; @@ -1013,7 +1013,7 @@ void SetSoundVariables(void) DoPCM=RDoPCM; DoSQ1=RDoSQ1; DoSQ2=RDoSQ2; - } + } else { DoNoise=DoTriangle=DoPCM=DoSQ1=DoSQ2=Dummyfunc;