From a8c3057875d7746bd48efd91406473a41bb7f607 Mon Sep 17 00:00:00 2001 From: Paweł Kołodziejski Date: Thu, 6 Mar 2003 18:30:44 +0000 Subject: and more cleanup .... svn-id: r6719 --- sound/fmopl.cpp | 757 ++++++++++++++++++++++++++------------------------------ 1 file changed, 354 insertions(+), 403 deletions(-) (limited to 'sound/fmopl.cpp') diff --git a/sound/fmopl.cpp b/sound/fmopl.cpp index dca5d23e65..014e2da010 100644 --- a/sound/fmopl.cpp +++ b/sound/fmopl.cpp @@ -154,11 +154,11 @@ static const double KSL_TABLE_SEED[8 * 16] = { static int SL_TABLE[16]; -static const uint SL_TABLE_SEED[16]={ - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 31 +static const uint SL_TABLE_SEED[16] = { + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 31 }; -#define TL_MAX (EG_ENT*2) /* limit(tl + ksr + envelope) + sinwave */ +#define TL_MAX (EG_ENT * 2) /* limit(tl + ksr + envelope) + sinwave */ /* TotalLevel : 48 24 12 6 3 1.5 0.75 (dB) */ /* TL_TABLE[ 0 to TL_MAX ] : plus section */ /* TL_TABLE[ TL_MAX to TL_MAX+TL_MAX-1 ] : minus section */ @@ -174,14 +174,14 @@ static int *VIB_TABLE; /* envelope output curve table */ /* attack + decay + OFF */ //static int ENV_CURVE[2*EG_ENT+1]; -static int ENV_CURVE[2 * 4096+1]; // to keep it static ... +static int ENV_CURVE[2 * 4096 + 1]; // to keep it static ... /* multiple table */ -#define ML(a) (int)(a*2) +#define ML(a) (int)(a * 2) static const uint MUL_TABLE[16]= { /* 1/2, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15 */ - ML(0.50), ML(1.00), ML(2.00), ML(3.00), ML(4.00), ML(5.00), ML(6.00), ML(7.00), - ML(8.00), ML(9.00), ML(10.00), ML(10.00),ML(12.00),ML(12.00),ML(15.00),ML(15.00) + ML(0.50), ML(1.00), ML(2.00), ML(3.00), ML(4.00), ML(5.00), ML(6.00), ML(7.00), + ML(8.00), ML(9.00), ML(10.00), ML(10.00),ML(12.00),ML(12.00),ML(15.00),ML(15.00) }; #undef ML @@ -200,37 +200,37 @@ static void *cur_chip = NULL; /* current chip point */ /* static OPLSAMPLE *bufL,*bufR; */ static OPL_CH *S_CH; static OPL_CH *E_CH; -OPL_SLOT *SLOT7_1,*SLOT7_2,*SLOT8_1,*SLOT8_2; +OPL_SLOT *SLOT7_1, *SLOT7_2, *SLOT8_1, *SLOT8_2; static int outd[1]; static int ams; static int vib; -int *ams_table; -int *vib_table; +int *ams_table; +int *vib_table; static int amsIncr; static int vibIncr; static int feedback2; /* connect for SLOT 2 */ /* --------------------- rebuild tables ------------------- */ -#define SC_KSL(mydb) ((uint) (mydb / (EG_STEP/2))) -#define SC_SL(db) (int)(db*((3/EG_STEP)*(1< max ) val = max; else if ( val < min ) @@ -249,30 +249,25 @@ inline int Limit( int val, int max, int min ) { } /* status set and IRQ handling */ -inline void OPL_STATUS_SET(FM_OPL *OPL,int flag) -{ +inline void OPL_STATUS_SET(FM_OPL *OPL, int flag) { /* set status flag */ OPL->status |= flag; - if(!(OPL->status & 0x80)) - { - if(OPL->status & OPL->statusmask) - { /* IRQ on */ + if(!(OPL->status & 0x80)) { + if(OPL->status & OPL->statusmask) { /* IRQ on */ OPL->status |= 0x80; /* callback user interrupt handler (IRQ is OFF to ON) */ - if(OPL->IRQHandler) (OPL->IRQHandler)(OPL->IRQParam,1); + if(OPL->IRQHandler) + (OPL->IRQHandler)(OPL->IRQParam,1); } } } /* status reset and IRQ handling */ -inline void OPL_STATUS_RESET(FM_OPL *OPL,int flag) -{ +inline void OPL_STATUS_RESET(FM_OPL *OPL, int flag) { /* reset status flag */ - OPL->status &=~flag; - if((OPL->status & 0x80)) - { - if (!(OPL->status & OPL->statusmask) ) - { + OPL->status &= ~flag; + if((OPL->status & 0x80)) { + if (!(OPL->status & OPL->statusmask)) { OPL->status &= 0x7f; /* callback user interrupt handler (IRQ is ON to OFF) */ if(OPL->IRQHandler) (OPL->IRQHandler)(OPL->IRQParam,0); @@ -281,8 +276,7 @@ inline void OPL_STATUS_RESET(FM_OPL *OPL,int flag) } /* IRQ mask set */ -inline void OPL_STATUSMASK_SET(FM_OPL *OPL,int flag) -{ +inline void OPL_STATUSMASK_SET(FM_OPL *OPL, int flag) { OPL->statusmask = flag; /* IRQ handling check */ OPL_STATUS_SET(OPL,0); @@ -290,8 +284,7 @@ inline void OPL_STATUSMASK_SET(FM_OPL *OPL,int flag) } /* ----- key on ----- */ -inline void OPL_KEYON(OPL_SLOT *SLOT) -{ +inline void OPL_KEYON(OPL_SLOT *SLOT) { /* sin wave restart */ SLOT->Cnt = 0; /* set attack */ @@ -301,13 +294,11 @@ inline void OPL_KEYON(OPL_SLOT *SLOT) SLOT->eve = EG_AED; } /* ----- key off ----- */ -inline void OPL_KEYOFF(OPL_SLOT *SLOT) -{ - if( SLOT->evm > ENV_MOD_RR) - { +inline void OPL_KEYOFF(OPL_SLOT *SLOT) { + if( SLOT->evm > ENV_MOD_RR) { /* set envelope counter from envleope output */ SLOT->evm = ENV_MOD_RR; - if( !(SLOT->evc&EG_DST) ) + if( !(SLOT->evc & EG_DST) ) //SLOT->evc = (ENV_CURVE[SLOT->evc>>ENV_BITS]<evc = EG_DST; SLOT->eve = EG_DED; @@ -317,11 +308,9 @@ inline void OPL_KEYOFF(OPL_SLOT *SLOT) /* ---------- calcrate Envelope Generator & Phase Generator ---------- */ /* return : envelope output */ -inline uint OPL_CALC_SLOT( OPL_SLOT *SLOT ) -{ +inline uint OPL_CALC_SLOT(OPL_SLOT *SLOT) { /* calcrate envelope generator */ - if( (SLOT->evc+=SLOT->evs) >= SLOT->eve ) - { + if((SLOT->evc += SLOT->evs) >= SLOT->eve) { switch( SLOT->evm ){ case ENV_MOD_AR: /* ATTACK -> DECAY1 */ /* next DR */ @@ -333,38 +322,33 @@ inline uint OPL_CALC_SLOT( OPL_SLOT *SLOT ) case ENV_MOD_DR: /* DECAY -> SL or RR */ SLOT->evc = SLOT->SL; SLOT->eve = EG_DED; - if(SLOT->eg_typ) - { + if(SLOT->eg_typ) { SLOT->evs = 0; - } - else - { + } else { SLOT->evm = ENV_MOD_RR; SLOT->evs = SLOT->evsr; } break; case ENV_MOD_RR: /* RR -> OFF */ SLOT->evc = EG_OFF; - SLOT->eve = EG_OFF+1; + SLOT->eve = EG_OFF + 1; SLOT->evs = 0; break; } } /* calcrate envelope */ - return SLOT->TLL+ENV_CURVE[SLOT->evc>>ENV_BITS]+(SLOT->ams ? ams : 0); + return SLOT->TLL + ENV_CURVE[SLOT->evc>>ENV_BITS] + (SLOT->ams ? ams : 0); } /* set algorythm connection */ -static void set_algorythm( OPL_CH *CH) -{ +static void set_algorythm(OPL_CH *CH) { int *carrier = &outd[0]; CH->connect1 = CH->CON ? carrier : &feedback2; CH->connect2 = carrier; } /* ---------- frequency counter for operater update ---------- */ -inline void CALC_FCSLOT(OPL_CH *CH,OPL_SLOT *SLOT) -{ +inline void CALC_FCSLOT(OPL_CH *CH, OPL_SLOT *SLOT) { int ksr; /* frequency step counter */ @@ -383,72 +367,70 @@ inline void CALC_FCSLOT(OPL_CH *CH,OPL_SLOT *SLOT) } /* set multi,am,vib,EG-TYP,KSR,mul */ -inline void set_mul(FM_OPL *OPL,int slot,int v) -{ - OPL_CH *CH = &OPL->P_CH[slot/2]; - OPL_SLOT *SLOT = &CH->SLOT[slot&1]; - - SLOT->mul = MUL_TABLE[v&0x0f]; - SLOT->KSR = (v&0x10) ? 0 : 2; - SLOT->eg_typ = (v&0x20)>>5; - SLOT->vib = (v&0x40); - SLOT->ams = (v&0x80); - CALC_FCSLOT(CH,SLOT); +inline void set_mul(FM_OPL *OPL, int slot, int v) { + OPL_CH *CH = &OPL->P_CH[slot / 2]; + OPL_SLOT *SLOT = &CH->SLOT[slot & 1]; + + SLOT->mul = MUL_TABLE[v & 0x0f]; + SLOT->KSR = (v & 0x10) ? 0 : 2; + SLOT->eg_typ = (v & 0x20) >> 5; + SLOT->vib = (v & 0x40); + SLOT->ams = (v & 0x80); + CALC_FCSLOT(CH, SLOT); } /* set ksl & tl */ -inline void set_ksl_tl(FM_OPL *OPL,int slot,int v) -{ - OPL_CH *CH = &OPL->P_CH[slot/2]; - OPL_SLOT *SLOT = &CH->SLOT[slot&1]; - int ksl = v>>6; /* 0 / 1.5 / 3 / 6 db/OCT */ +inline void set_ksl_tl(FM_OPL *OPL, int slot, int v) { + OPL_CH *CH = &OPL->P_CH[slot / 2]; + OPL_SLOT *SLOT = &CH->SLOT[slot & 1]; + int ksl = v >> 6; /* 0 / 1.5 / 3 / 6 db/OCT */ SLOT->ksl = ksl ? 3-ksl : 31; - SLOT->TL = (int)((v&0x3f)*(0.75/EG_STEP)); /* 0.75db step */ + SLOT->TL = (int)((v & 0x3f) * (0.75 / EG_STEP)); /* 0.75db step */ - if( !(OPL->mode&0x80) ) - { /* not CSM latch total level */ - SLOT->TLL = SLOT->TL + (CH->ksl_base>>SLOT->ksl); + if(!(OPL->mode & 0x80)) { /* not CSM latch total level */ + SLOT->TLL = SLOT->TL + (CH->ksl_base >> SLOT->ksl); } } /* set attack rate & decay rate */ -inline void set_ar_dr(FM_OPL *OPL,int slot,int v) -{ - OPL_CH *CH = &OPL->P_CH[slot/2]; - OPL_SLOT *SLOT = &CH->SLOT[slot&1]; - int ar = v>>4; - int dr = v&0x0f; +inline void set_ar_dr(FM_OPL *OPL, int slot, int v) { + OPL_CH *CH = &OPL->P_CH[slot / 2]; + OPL_SLOT *SLOT = &CH->SLOT[slot & 1]; + int ar = v >> 4; + int dr = v & 0x0f; - SLOT->AR = ar ? &OPL->AR_TABLE[ar<<2] : RATE_0; + SLOT->AR = ar ? &OPL->AR_TABLE[ar << 2] : RATE_0; SLOT->evsa = SLOT->AR[SLOT->ksr]; - if( SLOT->evm == ENV_MOD_AR ) SLOT->evs = SLOT->evsa; + if(SLOT->evm == ENV_MOD_AR) + SLOT->evs = SLOT->evsa; SLOT->DR = dr ? &OPL->DR_TABLE[dr<<2] : RATE_0; SLOT->evsd = SLOT->DR[SLOT->ksr]; - if( SLOT->evm == ENV_MOD_DR ) SLOT->evs = SLOT->evsd; + if(SLOT->evm == ENV_MOD_DR) + SLOT->evs = SLOT->evsd; } /* set sustain level & release rate */ -inline void set_sl_rr(FM_OPL *OPL,int slot,int v) -{ - OPL_CH *CH = &OPL->P_CH[slot/2]; - OPL_SLOT *SLOT = &CH->SLOT[slot&1]; - int sl = v>>4; +inline void set_sl_rr(FM_OPL *OPL, int slot, int v) { + OPL_CH *CH = &OPL->P_CH[slot / 2]; + OPL_SLOT *SLOT = &CH->SLOT[slot & 1]; + int sl = v >> 4; int rr = v & 0x0f; SLOT->SL = SL_TABLE[sl]; - if( SLOT->evm == ENV_MOD_DR ) SLOT->eve = SLOT->SL; + if(SLOT->evm == ENV_MOD_DR) + SLOT->eve = SLOT->SL; SLOT->RR = &OPL->DR_TABLE[rr<<2]; SLOT->evsr = SLOT->RR[SLOT->ksr]; - if( SLOT->evm == ENV_MOD_RR ) SLOT->evs = SLOT->evsr; + if(SLOT->evm == ENV_MOD_RR) + SLOT->evs = SLOT->evsr; } /* operator output calcrator */ -#define OP_OUT(slot,env,con) slot->wavetable[((slot->Cnt+con)/(0x1000000/SIN_ENT))&(SIN_ENT-1)][env] +#define OP_OUT(slot,env,con) slot->wavetable[((slot->Cnt + con) / (0x1000000 / SIN_ENT)) & (SIN_ENT-1)][env] /* ---------- calcrate one of channel ---------- */ -inline void OPL_CALC_CH( OPL_CH *CH ) -{ +inline void OPL_CALC_CH(OPL_CH *CH) { uint env_out; OPL_SLOT *SLOT; @@ -456,46 +438,44 @@ inline void OPL_CALC_CH( OPL_CH *CH ) /* SLOT 1 */ SLOT = &CH->SLOT[SLOT1]; env_out=OPL_CALC_SLOT(SLOT); - if( env_out < (uint)(EG_ENT-1)) - { + if(env_out < (uint)(EG_ENT - 1)) { /* PG */ - if(SLOT->vib) SLOT->Cnt += (SLOT->Incr*vib/VIB_RATE); - else SLOT->Cnt += SLOT->Incr; + if(SLOT->vib) + SLOT->Cnt += (SLOT->Incr * vib / VIB_RATE); + else + SLOT->Cnt += SLOT->Incr; /* connectoion */ - if(CH->FB) - { - int feedback1 = (CH->op1_out[0]+CH->op1_out[1])>>CH->FB; + if(CH->FB) { + int feedback1 = (CH->op1_out[0] + CH->op1_out[1]) >> CH->FB; CH->op1_out[1] = CH->op1_out[0]; - *CH->connect1 += CH->op1_out[0] = OP_OUT(SLOT,env_out,feedback1); + *CH->connect1 += CH->op1_out[0] = OP_OUT(SLOT, env_out, feedback1); } - else - { - *CH->connect1 += OP_OUT(SLOT,env_out,0); + else { + *CH->connect1 += OP_OUT(SLOT, env_out, 0); } - }else - { + }else { CH->op1_out[1] = CH->op1_out[0]; CH->op1_out[0] = 0; } /* SLOT 2 */ SLOT = &CH->SLOT[SLOT2]; env_out=OPL_CALC_SLOT(SLOT); - if( env_out < (uint)(EG_ENT-1) ) - { + if(env_out < (uint)(EG_ENT - 1)) { /* PG */ - if(SLOT->vib) SLOT->Cnt += (SLOT->Incr*vib/VIB_RATE); - else SLOT->Cnt += SLOT->Incr; + if(SLOT->vib) + SLOT->Cnt += (SLOT->Incr * vib / VIB_RATE); + else + SLOT->Cnt += SLOT->Incr; /* connectoion */ - outd[0] += OP_OUT(SLOT,env_out, feedback2); + outd[0] += OP_OUT(SLOT, env_out, feedback2); } } /* ---------- calcrate rythm block ---------- */ #define WHITE_NOISE_db 6.0 -inline void OPL_CALC_RH( OPL_CH *CH ) -{ - uint env_tam,env_sd,env_top,env_hh; - int whitenoise = int((rand()&1)*(WHITE_NOISE_db/EG_STEP)); +inline void OPL_CALC_RH(OPL_CH *CH) { + uint env_tam, env_sd, env_top, env_hh; + int whitenoise = int((rand()&1) * (WHITE_NOISE_db / EG_STEP)); int tone8; OPL_SLOT *SLOT; @@ -505,192 +485,189 @@ inline void OPL_CALC_RH( OPL_CH *CH ) feedback2 = 0; /* SLOT 1 */ SLOT = &CH[6].SLOT[SLOT1]; - env_out=OPL_CALC_SLOT(SLOT); - if( env_out < EG_ENT-1 ) - { + env_out = OPL_CALC_SLOT(SLOT); + if(env_out < EG_ENT-1) { /* PG */ - if(SLOT->vib) SLOT->Cnt += (SLOT->Incr*vib/VIB_RATE); - else SLOT->Cnt += SLOT->Incr; + if(SLOT->vib) + SLOT->Cnt += (SLOT->Incr * vib / VIB_RATE); + else + SLOT->Cnt += SLOT->Incr; /* connectoion */ - if(CH[6].FB) - { - int feedback1 = (CH[6].op1_out[0]+CH[6].op1_out[1])>>CH[6].FB; + if(CH[6].FB) { + int feedback1 = (CH[6].op1_out[0] + CH[6].op1_out[1]) >> CH[6].FB; CH[6].op1_out[1] = CH[6].op1_out[0]; - feedback2 = CH[6].op1_out[0] = OP_OUT(SLOT,env_out,feedback1); + feedback2 = CH[6].op1_out[0] = OP_OUT(SLOT, env_out, feedback1); } - else - { - feedback2 = OP_OUT(SLOT,env_out,0); + else { + feedback2 = OP_OUT(SLOT, env_out, 0); } - }else - { + }else { feedback2 = 0; CH[6].op1_out[1] = CH[6].op1_out[0]; CH[6].op1_out[0] = 0; } /* SLOT 2 */ SLOT = &CH[6].SLOT[SLOT2]; - env_out=OPL_CALC_SLOT(SLOT); - if( env_out < EG_ENT-1 ) - { + env_out = OPL_CALC_SLOT(SLOT); + if(env_out < EG_ENT-1) { /* PG */ - if(SLOT->vib) SLOT->Cnt += (SLOT->Incr*vib/VIB_RATE); - else SLOT->Cnt += SLOT->Incr; + if(SLOT->vib) + SLOT->Cnt += (SLOT->Incr * vib / VIB_RATE); + else + SLOT->Cnt += SLOT->Incr; /* connectoion */ - outd[0] += OP_OUT(SLOT,env_out, feedback2)*2; + outd[0] += OP_OUT(SLOT, env_out, feedback2) * 2; } // SD (17) = mul14[fnum7] + white noise // TAM (15) = mul15[fnum8] // TOP (18) = fnum6(mul18[fnum8]+whitenoise) // HH (14) = fnum7(mul18[fnum8]+whitenoise) + white noise - env_sd =OPL_CALC_SLOT(SLOT7_2) + whitenoise; - env_tam=OPL_CALC_SLOT(SLOT8_1); - env_top=OPL_CALC_SLOT(SLOT8_2); - env_hh =OPL_CALC_SLOT(SLOT7_1) + whitenoise; + env_sd = OPL_CALC_SLOT(SLOT7_2) + whitenoise; + env_tam =OPL_CALC_SLOT(SLOT8_1); + env_top = OPL_CALC_SLOT(SLOT8_2); + env_hh = OPL_CALC_SLOT(SLOT7_1) + whitenoise; /* PG */ - if(SLOT7_1->vib) SLOT7_1->Cnt += (2*SLOT7_1->Incr*vib/VIB_RATE); - else SLOT7_1->Cnt += 2*SLOT7_1->Incr; - if(SLOT7_2->vib) SLOT7_2->Cnt += ((CH[7].fc*8)*vib/VIB_RATE); - else SLOT7_2->Cnt += (CH[7].fc*8); - if(SLOT8_1->vib) SLOT8_1->Cnt += (SLOT8_1->Incr*vib/VIB_RATE); - else SLOT8_1->Cnt += SLOT8_1->Incr; - if(SLOT8_2->vib) SLOT8_2->Cnt += ((CH[8].fc*48)*vib/VIB_RATE); - else SLOT8_2->Cnt += (CH[8].fc*48); + if(SLOT7_1->vib) + SLOT7_1->Cnt += (2 * SLOT7_1->Incr * vib / VIB_RATE); + else + SLOT7_1->Cnt += 2 * SLOT7_1->Incr; + if(SLOT7_2->vib) + SLOT7_2->Cnt += ((CH[7].fc * 8) * vib / VIB_RATE); + else + SLOT7_2->Cnt += (CH[7].fc * 8); + if(SLOT8_1->vib) + SLOT8_1->Cnt += (SLOT8_1->Incr * vib / VIB_RATE); + else + SLOT8_1->Cnt += SLOT8_1->Incr; + if(SLOT8_2->vib) + SLOT8_2->Cnt += ((CH[8].fc * 48) * vib / VIB_RATE); + else + SLOT8_2->Cnt += (CH[8].fc * 48); tone8 = OP_OUT(SLOT8_2,whitenoise,0 ); /* SD */ - if( env_sd < (uint)(EG_ENT-1) ) - outd[0] += OP_OUT(SLOT7_1,env_sd, 0)*8; + if(env_sd < (uint)(EG_ENT - 1)) + outd[0] += OP_OUT(SLOT7_1, env_sd, 0) * 8; /* TAM */ - if( env_tam < (uint)(EG_ENT-1) ) - outd[0] += OP_OUT(SLOT8_1,env_tam, 0)*2; + if(env_tam < (uint)(EG_ENT - 1)) + outd[0] += OP_OUT(SLOT8_1, env_tam, 0) * 2; /* TOP-CY */ - if( env_top < (uint)(EG_ENT-1) ) - outd[0] += OP_OUT(SLOT7_2,env_top,tone8)*2; + if(env_top < (uint)(EG_ENT - 1)) + outd[0] += OP_OUT(SLOT7_2, env_top, tone8) * 2; /* HH */ - if( env_hh < (uint)(EG_ENT-1) ) - outd[0] += OP_OUT(SLOT7_2,env_hh,tone8)*2; + if(env_hh < (uint)(EG_ENT-1)) + outd[0] += OP_OUT(SLOT7_2, env_hh, tone8) * 2; } /* ----------- initialize time tabls ----------- */ -static void init_timetables( FM_OPL *OPL , int ARRATE , int DRRATE ) -{ +static void init_timetables(FM_OPL *OPL, int ARRATE, int DRRATE) { int i; double rate; /* make attack rate & decay rate tables */ - for (i = 0;i < 4;i++) OPL->AR_TABLE[i] = OPL->DR_TABLE[i] = 0; - for (i = 4;i <= 60;i++){ - rate = OPL->freqbase; /* frequency rate */ - if( i < 60 ) rate *= 1.0+(i&3)*0.25; /* b0-1 : x1 , x1.25 , x1.5 , x1.75 */ - rate *= 1<<((i>>2)-1); /* b2-5 : shift bit */ - rate *= (double)(EG_ENT<AR_TABLE[i] = OPL->DR_TABLE[i] = 0; + for (i = 4; i <= 60; i++){ + rate = OPL->freqbase; /* frequency rate */ + if(i < 60) + rate *= 1.0 + (i & 3) * 0.25; /* b0-1 : x1 , x1.25 , x1.5 , x1.75 */ + rate *= 1 << ((i >> 2) - 1); /* b2-5 : shift bit */ + rate *= (double)(EG_ENT << ENV_BITS); OPL->AR_TABLE[i] = (int)(rate / ARRATE); OPL->DR_TABLE[i] = (int)(rate / DRRATE); } - for (i = 60;i < 75;i++) - { + for (i = 60; i < 75; i++) { OPL->AR_TABLE[i] = EG_AED-1; OPL->DR_TABLE[i] = OPL->DR_TABLE[60]; } } /* ---------- generic table initialize ---------- */ -static int OPLOpenTable( void ) -{ +static int OPLOpenTable(void) { int s,t; double rate; int i,j; double pom; /* allocate dynamic tables */ - if( (TL_TABLE = (int *)malloc(TL_MAX*2*sizeof(int))) == NULL) + if((TL_TABLE = (int *)malloc(TL_MAX * 2 * sizeof(int))) == NULL) return 0; - if( (SIN_TABLE = (int **)malloc(SIN_ENT*4 *sizeof(int *))) == NULL) - { + if((SIN_TABLE = (int **)malloc(SIN_ENT * 4 * sizeof(int *))) == NULL) { free(TL_TABLE); return 0; } - if( (AMS_TABLE = (int *)malloc(AMS_ENT*2 *sizeof(int))) == NULL) - { + if((AMS_TABLE = (int *)malloc(AMS_ENT * 2 * sizeof(int))) == NULL) { free(TL_TABLE); free(SIN_TABLE); return 0; } - if( (VIB_TABLE = (int *)malloc(VIB_ENT*2 *sizeof(int))) == NULL) - { + if((VIB_TABLE = (int *)malloc(VIB_ENT * 2 * sizeof(int))) == NULL) { free(TL_TABLE); free(SIN_TABLE); free(AMS_TABLE); return 0; } /* make total level table */ - for (t = 0;t < EG_ENT-1 ;t++){ - rate = ((1< voltage */ - TL_TABLE[ t] = (int)rate; - TL_TABLE[TL_MAX+t] = -TL_TABLE[t]; + for (t = 0; t < EG_ENT - 1 ; t++){ + rate = ((1 << TL_BITS) - 1) / pow(10, EG_STEP * t / 20); /* dB -> voltage */ + TL_TABLE[ t] = (int)rate; + TL_TABLE[TL_MAX + t] = -TL_TABLE[t]; } /* fill volume off area */ - for ( t = EG_ENT-1; t < TL_MAX ;t++){ - TL_TABLE[t] = TL_TABLE[TL_MAX+t] = 0; + for (t = EG_ENT - 1; t < TL_MAX; t++){ + TL_TABLE[t] = TL_TABLE[TL_MAX + t] = 0; } /* make sinwave table (total level offet) */ /* degree 0 = degree 180 = off */ - SIN_TABLE[0] = SIN_TABLE[SIN_ENT/2] = &TL_TABLE[EG_ENT-1]; - for (s = 1;s <= SIN_ENT/4;s++){ - pom = sin(2*PI*s/SIN_ENT); /* sin */ - pom = 20*log10(1/pom); /* decibel */ + SIN_TABLE[0] = SIN_TABLE[SIN_ENT /2 ] = &TL_TABLE[EG_ENT - 1]; + for (s = 1;s <= SIN_ENT / 4; s++){ + pom = sin(2 * PI * s / SIN_ENT); /* sin */ + pom = 20 * log10(1 / pom); /* decibel */ j = int(pom / EG_STEP); /* TL_TABLE steps */ /* degree 0 - 90 , degree 180 - 90 : plus section */ - SIN_TABLE[ s] = SIN_TABLE[SIN_ENT/2-s] = &TL_TABLE[j]; + SIN_TABLE[ s] = SIN_TABLE[SIN_ENT / 2 - s] = &TL_TABLE[j]; /* degree 180 - 270 , degree 360 - 270 : minus section */ - SIN_TABLE[SIN_ENT/2+s] = SIN_TABLE[SIN_ENT -s] = &TL_TABLE[TL_MAX+j]; + SIN_TABLE[SIN_ENT / 2 + s] = SIN_TABLE[SIN_ENT - s] = &TL_TABLE[TL_MAX + j]; } - for (s = 0;s < SIN_ENT;s++) - { - SIN_TABLE[SIN_ENT*1+s] = s<(SIN_ENT/2) ? SIN_TABLE[s] : &TL_TABLE[EG_ENT]; - SIN_TABLE[SIN_ENT*2+s] = SIN_TABLE[s % (SIN_ENT/2)]; - SIN_TABLE[SIN_ENT*3+s] = (s/(SIN_ENT/4))&1 ? &TL_TABLE[EG_ENT] : SIN_TABLE[SIN_ENT*2+s]; + for (s = 0;s < SIN_ENT; s++) { + SIN_TABLE[SIN_ENT * 1 + s] = s < (SIN_ENT / 2) ? SIN_TABLE[s] : &TL_TABLE[EG_ENT]; + SIN_TABLE[SIN_ENT * 2 + s] = SIN_TABLE[s % (SIN_ENT / 2)]; + SIN_TABLE[SIN_ENT * 3 + s] = (s / (SIN_ENT / 4)) & 1 ? &TL_TABLE[EG_ENT] : SIN_TABLE[SIN_ENT * 2 + s]; } /* envelope counter -> envelope output table */ - for (i=0; i= EG_ENT ) pom = EG_ENT-1; */ ENV_CURVE[i] = (int)pom; /* DECAY ,RELEASE curve */ - ENV_CURVE[(EG_DST>>ENV_BITS)+i]= i; + ENV_CURVE[(EG_DST >> ENV_BITS) + i]= i; } /* off */ - ENV_CURVE[EG_OFF>>ENV_BITS]= EG_ENT-1; + ENV_CURVE[EG_OFF >> ENV_BITS]= EG_ENT - 1; /* make LFO ams table */ - for (i=0; iSLOT[SLOT1]; OPL_SLOT *slot2 = &CH->SLOT[SLOT2]; /* all key off */ @@ -715,49 +691,41 @@ inline void CSMKeyControll(OPL_CH *CH) } /* ---------- opl initialize ---------- */ -static void OPL_initalize(FM_OPL *OPL) -{ +static void OPL_initalize(FM_OPL *OPL) { int fn; /* frequency base */ - OPL->freqbase = (OPL->rate) ? ((double)OPL->clock / OPL->rate) / 72 : 0; + OPL->freqbase = (OPL->rate) ? ((double)OPL->clock / OPL->rate) / 72 : 0; /* Timer base time */ OPL->TimerBase = 1.0/((double)OPL->clock / 72.0 ); /* make time tables */ - init_timetables( OPL , OPL_ARRATE , OPL_DRRATE ); + init_timetables(OPL, OPL_ARRATE, OPL_DRRATE); /* make fnumber -> increment counter table */ - for( fn=0 ; fn < 1024 ; fn++ ) - { + for( fn=0; fn < 1024; fn++) { OPL->FN_TABLE[fn] = (uint)(OPL->freqbase * fn * FREQ_RATE * (1<<7) / 2); } /* LFO freq.table */ - OPL->amsIncr = (int)(OPL->rate ? (double)AMS_ENT*(1<rate * 3.7 * ((double)OPL->clock/3600000) : 0); - OPL->vibIncr = (int)(OPL->rate ? (double)VIB_ENT*(1<rate * 6.4 * ((double)OPL->clock/3600000) : 0); + OPL->amsIncr = (int)(OPL->rate ? (double)AMS_ENT * (1 << AMS_SHIFT) / OPL->rate * 3.7 * ((double)OPL->clock/3600000) : 0); + OPL->vibIncr = (int)(OPL->rate ? (double)VIB_ENT * (1 << VIB_SHIFT) / OPL->rate * 6.4 * ((double)OPL->clock/3600000) : 0); } /* ---------- write a OPL registers ---------- */ -void OPLWriteReg(FM_OPL *OPL, int r, int v) -{ +void OPLWriteReg(FM_OPL *OPL, int r, int v) { OPL_CH *CH; int slot; uint block_fnum; - switch(r&0xe0) - { + switch(r & 0xe0) { case 0x00: /* 00-1f:controll */ - switch(r&0x1f) - { + switch(r & 0x1f) { case 0x01: /* wave selector enable */ - if(OPL->type&OPL_TYPE_WAVESEL) - { - OPL->wavesel = v&0x20; - if(!OPL->wavesel) - { + if(OPL->type&OPL_TYPE_WAVESEL) { + OPL->wavesel = v & 0x20; + if(!OPL->wavesel) { /* preset compatible mode */ int c; - for(c=0;cmax_ch;c++) - { + for(c=0; cmax_ch; c++) { OPL->P_CH[c].SLOT[SLOT1].wavetable = &SIN_TABLE[0]; OPL->P_CH[c].SLOT[SLOT2].wavetable = &SIN_TABLE[0]; } @@ -765,36 +733,32 @@ void OPLWriteReg(FM_OPL *OPL, int r, int v) } return; case 0x02: /* Timer 1 */ - OPL->T[0] = (256-v)*4; + OPL->T[0] = (256-v) * 4; break; case 0x03: /* Timer 2 */ - OPL->T[1] = (256-v)*16; + OPL->T[1] = (256-v) * 16; return; case 0x04: /* IRQ clear / mask and Timer enable */ - if(v&0x80) - { /* IRQ flag clear */ - OPL_STATUS_RESET(OPL,0x7f); + if(v & 0x80) { /* IRQ flag clear */ + OPL_STATUS_RESET(OPL, 0x7f); } - else - { /* set IRQ mask ,timer enable*/ - uint8 st1 = v&1; - uint8 st2 = (v>>1)&1; + else { /* set IRQ mask ,timer enable*/ + uint8 st1 = v & 1; + uint8 st2 = (v >> 1) & 1; /* IRQRST,T1MSK,t2MSK,EOSMSK,BRMSK,x,ST2,ST1 */ - OPL_STATUS_RESET(OPL,v&0x78); - OPL_STATUSMASK_SET(OPL,((~v)&0x78)|0x01); + OPL_STATUS_RESET(OPL, v & 0x78); + OPL_STATUSMASK_SET(OPL,((~v) & 0x78) | 0x01); /* timer 2 */ - if(OPL->st[1] != st2) - { - double interval = st2 ? (double)OPL->T[1]*OPL->TimerBase : 0.0; + if(OPL->st[1] != st2) { + double interval = st2 ? (double)OPL->T[1] * OPL->TimerBase : 0.0; OPL->st[1] = st2; - if (OPL->TimerHandler) (OPL->TimerHandler)(OPL->TimerParam+1,interval); + if (OPL->TimerHandler) (OPL->TimerHandler)(OPL->TimerParam + 1, interval); } /* timer 1 */ - if(OPL->st[0] != st1) - { - double interval = st1 ? (double)OPL->T[0]*OPL->TimerBase : 0.0; + if(OPL->st[0] != st1) { + double interval = st1 ? (double)OPL->T[0] * OPL->TimerBase : 0.0; OPL->st[0] = st1; - if (OPL->TimerHandler) (OPL->TimerHandler)(OPL->TimerParam+0,interval); + if (OPL->TimerHandler) (OPL->TimerHandler)(OPL->TimerParam + 0, interval); } } return; @@ -802,137 +766,136 @@ void OPLWriteReg(FM_OPL *OPL, int r, int v) break; case 0x20: /* am,vib,ksr,eg type,mul */ slot = slot_array[r&0x1f]; - if(slot == -1) return; + if(slot == -1) + return; set_mul(OPL,slot,v); return; case 0x40: slot = slot_array[r&0x1f]; - if(slot == -1) return; + if(slot == -1) + return; set_ksl_tl(OPL,slot,v); return; case 0x60: slot = slot_array[r&0x1f]; - if(slot == -1) return; + if(slot == -1) + return; set_ar_dr(OPL,slot,v); return; case 0x80: slot = slot_array[r&0x1f]; - if(slot == -1) return; + if(slot == -1) + return; set_sl_rr(OPL,slot,v); return; case 0xa0: - switch(r) - { + switch(r) { case 0xbd: /* amsep,vibdep,r,bd,sd,tom,tc,hh */ { - uint8 rkey = OPL->rythm^v; - OPL->ams_table = &AMS_TABLE[v&0x80 ? AMS_ENT : 0]; - OPL->vib_table = &VIB_TABLE[v&0x40 ? VIB_ENT : 0]; - OPL->rythm = v&0x3f; - if(OPL->rythm&0x20) - { + uint8 rkey = OPL->rythm ^ v; + OPL->ams_table = &AMS_TABLE[v & 0x80 ? AMS_ENT : 0]; + OPL->vib_table = &VIB_TABLE[v & 0x40 ? VIB_ENT : 0]; + OPL->rythm = v & 0x3f; + if(OPL->rythm & 0x20) { /* BD key on/off */ - if(rkey&0x10) - { - if(v&0x10) - { + if(rkey & 0x10) { + if(v & 0x10) { OPL->P_CH[6].op1_out[0] = OPL->P_CH[6].op1_out[1] = 0; OPL_KEYON(&OPL->P_CH[6].SLOT[SLOT1]); OPL_KEYON(&OPL->P_CH[6].SLOT[SLOT2]); } - else - { + else { OPL_KEYOFF(&OPL->P_CH[6].SLOT[SLOT1]); OPL_KEYOFF(&OPL->P_CH[6].SLOT[SLOT2]); } } /* SD key on/off */ - if(rkey&0x08) - { - if(v&0x08) OPL_KEYON(&OPL->P_CH[7].SLOT[SLOT2]); - else OPL_KEYOFF(&OPL->P_CH[7].SLOT[SLOT2]); + if(rkey & 0x08) { + if(v & 0x08) + OPL_KEYON(&OPL->P_CH[7].SLOT[SLOT2]); + else + OPL_KEYOFF(&OPL->P_CH[7].SLOT[SLOT2]); }/* TAM key on/off */ - if(rkey&0x04) - { - if(v&0x04) OPL_KEYON(&OPL->P_CH[8].SLOT[SLOT1]); - else OPL_KEYOFF(&OPL->P_CH[8].SLOT[SLOT1]); + if(rkey & 0x04) { + if(v & 0x04) + OPL_KEYON(&OPL->P_CH[8].SLOT[SLOT1]); + else + OPL_KEYOFF(&OPL->P_CH[8].SLOT[SLOT1]); } /* TOP-CY key on/off */ - if(rkey&0x02) - { - if(v&0x02) OPL_KEYON(&OPL->P_CH[8].SLOT[SLOT2]); - else OPL_KEYOFF(&OPL->P_CH[8].SLOT[SLOT2]); + if(rkey & 0x02) { + if(v & 0x02) + OPL_KEYON(&OPL->P_CH[8].SLOT[SLOT2]); + else + OPL_KEYOFF(&OPL->P_CH[8].SLOT[SLOT2]); } /* HH key on/off */ - if(rkey&0x01) - { - if(v&0x01) OPL_KEYON(&OPL->P_CH[7].SLOT[SLOT1]); - else OPL_KEYOFF(&OPL->P_CH[7].SLOT[SLOT1]); + if(rkey & 0x01) { + if(v & 0x01) + OPL_KEYON(&OPL->P_CH[7].SLOT[SLOT1]); + else + OPL_KEYOFF(&OPL->P_CH[7].SLOT[SLOT1]); } } } return; } /* keyon,block,fnum */ - if( (r&0x0f) > 8) return; - CH = &OPL->P_CH[r&0x0f]; - if(!(r&0x10)) - { /* a0-a8 */ - block_fnum = (CH->block_fnum&0x1f00) | v; + if((r & 0x0f) > 8) + return; + CH = &OPL->P_CH[r & 0x0f]; + if(!(r&0x10)) { /* a0-a8 */ + block_fnum = (CH->block_fnum & 0x1f00) | v; } - else - { /* b0-b8 */ - int keyon = (v>>5)&1; - block_fnum = ((v&0x1f)<<8) | (CH->block_fnum&0xff); - if(CH->keyon != keyon) - { - if( (CH->keyon=keyon) ) - { + else { /* b0-b8 */ + int keyon = (v >> 5) & 1; + block_fnum = ((v & 0x1f) << 8) | (CH->block_fnum & 0xff); + if(CH->keyon != keyon) { + if((CH->keyon=keyon)) { CH->op1_out[0] = CH->op1_out[1] = 0; OPL_KEYON(&CH->SLOT[SLOT1]); OPL_KEYON(&CH->SLOT[SLOT2]); } - else - { + else { OPL_KEYOFF(&CH->SLOT[SLOT1]); OPL_KEYOFF(&CH->SLOT[SLOT2]); } } } /* update */ - if(CH->block_fnum != block_fnum) - { - int blockRv = 7-(block_fnum>>10); - int fnum = block_fnum&0x3ff; + if(CH->block_fnum != block_fnum) { + int blockRv = 7 - (block_fnum >> 10); + int fnum = block_fnum & 0x3ff; CH->block_fnum = block_fnum; - - CH->ksl_base = KSL_TABLE[block_fnum>>6]; - CH->fc = OPL->FN_TABLE[fnum]>>blockRv; - CH->kcode = CH->block_fnum>>9; - if( (OPL->mode&0x40) && CH->block_fnum&0x100) CH->kcode |=1; + CH->ksl_base = KSL_TABLE[block_fnum >> 6]; + CH->fc = OPL->FN_TABLE[fnum] >> blockRv; + CH->kcode = CH->block_fnum >> 9; + if((OPL->mode & 0x40) && CH->block_fnum & 0x100) + CH->kcode |=1; CALC_FCSLOT(CH,&CH->SLOT[SLOT1]); CALC_FCSLOT(CH,&CH->SLOT[SLOT2]); } return; case 0xc0: /* FB,C */ - if( (r&0x0f) > 8) return; + if((r & 0x0f) > 8) + return; CH = &OPL->P_CH[r&0x0f]; { - int feedback = (v>>1)&7; - CH->FB = feedback ? (8+1) - feedback : 0; - CH->CON = v&1; - set_algorythm(CH); + int feedback = (v >> 1) & 7; + CH->FB = feedback ? (8 + 1) - feedback : 0; + CH->CON = v & 1; + set_algorythm(CH); } return; case 0xe0: /* wave type */ - slot = slot_array[r&0x1f]; - if(slot == -1) return; - CH = &OPL->P_CH[slot/2]; - if(OPL->wavesel) - { - CH->SLOT[slot&1].wavetable = &SIN_TABLE[(v&0x03)*SIN_ENT]; + slot = slot_array[r & 0x1f]; + if(slot == -1) + return; + CH = &OPL->P_CH[slot / 2]; + if(OPL->wavesel) { + CH->SLOT[slot&1].wavetable = &SIN_TABLE[(v & 0x03) * SIN_ENT]; } return; } @@ -942,22 +905,23 @@ void OPLWriteReg(FM_OPL *OPL, int r, int v) static int OPL_LockTable(void) { num_lock++; - if(num_lock>1) return 0; + if(num_lock>1) + return 0; /* first time */ cur_chip = NULL; /* allocate total level table (128kb space) */ - if( !OPLOpenTable() ) - { + if(!OPLOpenTable()) { num_lock--; return -1; } return 0; } -static void OPL_UnLockTable(void) -{ - if(num_lock) num_lock--; - if(num_lock) return; +static void OPL_UnLockTable(void) { + if(num_lock) + num_lock--; + if(num_lock) + return; /* last time */ cur_chip = NULL; OPLCloseTable(); @@ -968,17 +932,16 @@ static void OPL_UnLockTable(void) /*******************************************************************************/ /* ---------- update one of chip ----------- */ -void YM3812UpdateOne(FM_OPL *OPL, int16 *buffer, int length) -{ - int i; +void YM3812UpdateOne(FM_OPL *OPL, int16 *buffer, int length) { + int i; int data; int16 *buf = buffer; - uint amsCnt = OPL->amsCnt; - uint vibCnt = OPL->vibCnt; - uint8 rythm = OPL->rythm&0x20; - OPL_CH *CH,*R_CH; + uint amsCnt = OPL->amsCnt; + uint vibCnt = OPL->vibCnt; + uint8 rythm = OPL->rythm & 0x20; + OPL_CH *CH, *R_CH; - if( (void *)OPL != cur_chip ){ + if((void *)OPL != cur_chip){ cur_chip = (void *)OPL; /* channel pointers */ S_CH = OPL->P_CH; @@ -995,21 +958,20 @@ void YM3812UpdateOne(FM_OPL *OPL, int16 *buffer, int length) vib_table = OPL->vib_table; } R_CH = rythm ? &S_CH[6] : E_CH; - for( i=0; i < length ; i++ ) - { + for(i = 0; i < length; i++) { /* channel A channel B channel C */ /* LFO */ - ams = ams_table[(amsCnt+=amsIncr)>>AMS_SHIFT]; - vib = vib_table[(vibCnt+=vibIncr)>>VIB_SHIFT]; + ams = ams_table[(amsCnt += amsIncr) >> AMS_SHIFT]; + vib = vib_table[(vibCnt += vibIncr) >> VIB_SHIFT]; outd[0] = 0; /* FM part */ - for(CH=S_CH ; CH < R_CH ; CH++) + for(CH=S_CH; CH < R_CH; CH++) OPL_CALC_CH(CH); /* Rythn part */ if(rythm) OPL_CALC_RH(S_CH); /* limit check */ - data = Limit( outd[0] , OPL_MAXOUT, OPL_MINOUT ); + data = Limit(outd[0], OPL_MAXOUT, OPL_MINOUT); /* store to sound buffer */ buf[i] = data >> OPL_OUTSB; } @@ -1019,32 +981,30 @@ void YM3812UpdateOne(FM_OPL *OPL, int16 *buffer, int length) } /* ---------- reset a chip ---------- */ -void OPLResetChip(FM_OPL *OPL) -{ +void OPLResetChip(FM_OPL *OPL) { int c,s; int i; /* reset chip */ - OPL->mode = 0; /* normal mode */ - OPL_STATUS_RESET(OPL,0x7f); + OPL->mode = 0; /* normal mode */ + OPL_STATUS_RESET(OPL, 0x7f); /* reset with register write */ - OPLWriteReg(OPL,0x01,0); /* wabesel disable */ - OPLWriteReg(OPL,0x02,0); /* Timer1 */ - OPLWriteReg(OPL,0x03,0); /* Timer2 */ - OPLWriteReg(OPL,0x04,0); /* IRQ mask clear */ - for(i = 0xff ; i >= 0x20 ; i-- ) OPLWriteReg(OPL,i,0); + OPLWriteReg(OPL, 0x01,0); /* wabesel disable */ + OPLWriteReg(OPL, 0x02,0); /* Timer1 */ + OPLWriteReg(OPL, 0x03,0); /* Timer2 */ + OPLWriteReg(OPL, 0x04,0); /* IRQ mask clear */ + for(i = 0xff; i >= 0x20; i--) + OPLWriteReg(OPL,i,0); /* reset OPerator paramater */ - for( c = 0 ; c < OPL->max_ch ; c++ ) - { + for(c = 0; c < OPL->max_ch ;c++ ) { OPL_CH *CH = &OPL->P_CH[c]; /* OPL->P_CH[c].PAN = OPN_CENTER; */ - for(s = 0 ; s < 2 ; s++ ) - { + for(s = 0; s < 2; s++ ) { /* wave table */ CH->SLOT[s].wavetable = &SIN_TABLE[0]; /* CH->SLOT[s].evm = ENV_MOD_RR; */ CH->SLOT[s].evc = EG_OFF; - CH->SLOT[s].eve = EG_OFF+1; + CH->SLOT[s].eve = EG_OFF + 1; CH->SLOT[s].evs = 0; } } @@ -1052,26 +1012,27 @@ void OPLResetChip(FM_OPL *OPL) /* ---------- Create a virtual YM3812 ---------- */ /* 'rate' is sampling rate and 'bufsiz' is the size of the */ -FM_OPL *OPLCreate(int type, int clock, int rate) -{ +FM_OPL *OPLCreate(int type, int clock, int rate) { char *ptr; FM_OPL *OPL; int state_size; int max_ch = 9; /* normaly 9 channels */ - if( OPL_LockTable() ==-1) return NULL; + if( OPL_LockTable() == -1) + return NULL; /* allocate OPL state space */ state_size = sizeof(FM_OPL); - state_size += sizeof(OPL_CH)*max_ch; + state_size += sizeof(OPL_CH) * max_ch; /* allocate memory block */ ptr = (char *)calloc(state_size, 1); - if(ptr==NULL) return NULL; + if(ptr == NULL) + return NULL; /* clear */ - memset(ptr,0,state_size); - OPL = (FM_OPL *)ptr; ptr+=sizeof(FM_OPL); - OPL->P_CH = (OPL_CH *)ptr; ptr+=sizeof(OPL_CH)*max_ch; + memset(ptr, 0, state_size); + OPL = (FM_OPL *)ptr; ptr += sizeof(FM_OPL); + OPL->P_CH = (OPL_CH *)ptr; ptr += sizeof(OPL_CH) * max_ch; /* set channel state pointer */ OPL->type = type; @@ -1088,54 +1049,46 @@ FM_OPL *OPLCreate(int type, int clock, int rate) } /* ---------- Destroy one of vietual YM3812 ---------- */ -void OPLDestroy(FM_OPL *OPL) -{ +void OPLDestroy(FM_OPL *OPL) { OPL_UnLockTable(); free(OPL); } /* ---------- Option handlers ---------- */ -void OPLSetTimerHandler(FM_OPL *OPL,OPL_TIMERHANDLER TimerHandler,int channelOffset) -{ +void OPLSetTimerHandler(FM_OPL *OPL, OPL_TIMERHANDLER TimerHandler,int channelOffset) { OPL->TimerHandler = TimerHandler; OPL->TimerParam = channelOffset; } -void OPLSetIRQHandler(FM_OPL *OPL,OPL_IRQHANDLER IRQHandler,int param) -{ + +void OPLSetIRQHandler(FM_OPL *OPL, OPL_IRQHANDLER IRQHandler, int param) { OPL->IRQHandler = IRQHandler; OPL->IRQParam = param; } -void OPLSetUpdateHandler(FM_OPL *OPL,OPL_UPDATEHANDLER UpdateHandler,int param) -{ +void OPLSetUpdateHandler(FM_OPL *OPL, OPL_UPDATEHANDLER UpdateHandler,int param) { OPL->UpdateHandler = UpdateHandler; OPL->UpdateParam = param; } /* ---------- YM3812 I/O interface ---------- */ -int OPLWrite(FM_OPL *OPL,int a,int v) -{ - if( !(a&1) ) - { /* address port */ +int OPLWrite(FM_OPL *OPL,int a,int v) { + if(!(a & 1)) { /* address port */ OPL->address = v & 0xff; } - else - { /* data port */ - if(OPL->UpdateHandler) OPL->UpdateHandler(OPL->UpdateParam,0); - OPLWriteReg(OPL,OPL->address,v); + else { /* data port */ + if(OPL->UpdateHandler) + OPL->UpdateHandler(OPL->UpdateParam,0); + OPLWriteReg(OPL, OPL->address,v); } - return OPL->status>>7; + return OPL->status >> 7; } -unsigned char OPLRead(FM_OPL *OPL,int a) -{ - if( !(a&1) ) - { /* status port */ - return OPL->status & (OPL->statusmask|0x80); +unsigned char OPLRead(FM_OPL *OPL,int a) { + if(!(a & 1)) { /* status port */ + return OPL->status & (OPL->statusmask | 0x80); } /* data port */ - switch(OPL->address) - { + switch(OPL->address) { case 0x05: /* KeyBoard IN */ warning("OPL:read unmapped KEYBOARD port\n"); return 0; @@ -1148,25 +1101,23 @@ unsigned char OPLRead(FM_OPL *OPL,int a) return 0; } -int OPLTimerOver(FM_OPL *OPL,int c) -{ - if( c ) - { /* Timer B */ - OPL_STATUS_SET(OPL,0x20); +int OPLTimerOver(FM_OPL *OPL, int c) { + if(c) { /* Timer B */ + OPL_STATUS_SET(OPL, 0x20); } - else - { /* Timer A */ - OPL_STATUS_SET(OPL,0x40); + else { /* Timer A */ + OPL_STATUS_SET(OPL, 0x40); /* CSM mode key,TL controll */ - if( OPL->mode & 0x80 ) - { /* CSM mode total level latch and auto key on */ + if(OPL->mode & 0x80) { /* CSM mode total level latch and auto key on */ int ch; - if(OPL->UpdateHandler) OPL->UpdateHandler(OPL->UpdateParam,0); - for(ch=0;ch<9;ch++) - CSMKeyControll( &OPL->P_CH[ch] ); + if(OPL->UpdateHandler) + OPL->UpdateHandler(OPL->UpdateParam,0); + for(ch = 0; ch < 9; ch++) + CSMKeyControll(&OPL->P_CH[ch]); } } /* reload timer */ - if (OPL->TimerHandler) (OPL->TimerHandler)(OPL->TimerParam+c,(double)OPL->T[c]*OPL->TimerBase); - return OPL->status>>7; + if (OPL->TimerHandler) + (OPL->TimerHandler)(OPL->TimerParam + c, (double)OPL->T[c] * OPL->TimerBase); + return OPL->status >> 7; } -- cgit v1.2.3