From e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb Mon Sep 17 00:00:00 2001 From: Yang Zhang Date: Fri, 28 Aug 2015 09:58:54 +0800 Subject: Add qemu 2.4.0 Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang --- qemu/hw/audio/fmopl.c | 1394 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1394 insertions(+) create mode 100644 qemu/hw/audio/fmopl.c (limited to 'qemu/hw/audio/fmopl.c') diff --git a/qemu/hw/audio/fmopl.c b/qemu/hw/audio/fmopl.c new file mode 100644 index 000000000..adcef2d3b --- /dev/null +++ b/qemu/hw/audio/fmopl.c @@ -0,0 +1,1394 @@ +/* +** +** File: fmopl.c -- software implementation of FM sound generator +** +** Copyright (C) 1999,2000 Tatsuyuki Satoh , MultiArcadeMachineEmurator development +** +** Version 0.37a +** +*/ + +/* + preliminary : + Problem : + note: +*/ + +/* This version of fmopl.c is a fork of the MAME one, relicensed under the LGPL. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see . + */ + +#define HAS_YM3812 1 + +#include +#include +#include +#include +#include +//#include "driver.h" /* use M.A.M.E. */ +#include "fmopl.h" + +#ifndef PI +#define PI 3.14159265358979323846 +#endif + +#ifndef ARRAY_SIZE +#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) +#endif + +/* -------------------- for debug --------------------- */ +/* #define OPL_OUTPUT_LOG */ +#ifdef OPL_OUTPUT_LOG +static FILE *opl_dbg_fp = NULL; +static FM_OPL *opl_dbg_opl[16]; +static int opl_dbg_maxchip,opl_dbg_chip; +#endif + +/* -------------------- preliminary define section --------------------- */ +/* attack/decay rate time rate */ +#define OPL_ARRATE 141280 /* RATE 4 = 2826.24ms @ 3.6MHz */ +#define OPL_DRRATE 1956000 /* RATE 4 = 39280.64ms @ 3.6MHz */ + +#define DELTAT_MIXING_LEVEL (1) /* DELTA-T ADPCM MIXING LEVEL */ + +#define FREQ_BITS 24 /* frequency turn */ + +/* counter bits = 20 , octerve 7 */ +#define FREQ_RATE (1<<(FREQ_BITS-20)) +#define TL_BITS (FREQ_BITS+2) + +/* final output shift , limit minimum and maximum */ +#define OPL_OUTSB (TL_BITS+3-16) /* OPL output final shift 16bit */ +#define OPL_MAXOUT (0x7fff<=LOG_LEVEL ) logerror x +#define LOG(n,x) + +/* --------------------- subroutines --------------------- */ + +static inline int Limit( int val, int max, int min ) { + if ( val > max ) + val = max; + else if ( val < min ) + val = min; + + return val; +} + +/* status set and IRQ handling */ +static 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 */ + OPL->status |= 0x80; + /* callback user interrupt handler (IRQ is OFF to ON) */ + if(OPL->IRQHandler) (OPL->IRQHandler)(OPL->IRQParam,1); + } + } +} + +/* status reset and IRQ handling */ +static 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 &= 0x7f; + /* callback user interrupt handler (IRQ is ON to OFF) */ + if(OPL->IRQHandler) (OPL->IRQHandler)(OPL->IRQParam,0); + } + } +} + +/* IRQ mask set */ +static inline void OPL_STATUSMASK_SET(FM_OPL *OPL,int flag) +{ + OPL->statusmask = flag; + /* IRQ handling check */ + OPL_STATUS_SET(OPL,0); + OPL_STATUS_RESET(OPL,0); +} + +/* ----- key on ----- */ +static inline void OPL_KEYON(OPL_SLOT *SLOT) +{ + /* sin wave restart */ + SLOT->Cnt = 0; + /* set attack */ + SLOT->evm = ENV_MOD_AR; + SLOT->evs = SLOT->evsa; + SLOT->evc = EG_AST; + SLOT->eve = EG_AED; +} +/* ----- key off ----- */ +static 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) ) + //SLOT->evc = (ENV_CURVE[SLOT->evc>>ENV_BITS]<evc = EG_DST; + SLOT->eve = EG_DED; + SLOT->evs = SLOT->evsr; + } +} + +/* ---------- calcrate Envelope Generator & Phase Generator ---------- */ +/* return : envelope output */ +static inline UINT32 OPL_CALC_SLOT( OPL_SLOT *SLOT ) +{ + /* calcrate envelope generator */ + if( (SLOT->evc+=SLOT->evs) >= SLOT->eve ) + { + switch( SLOT->evm ){ + case ENV_MOD_AR: /* ATTACK -> DECAY1 */ + /* next DR */ + SLOT->evm = ENV_MOD_DR; + SLOT->evc = EG_DST; + SLOT->eve = SLOT->SL; + SLOT->evs = SLOT->evsd; + break; + case ENV_MOD_DR: /* DECAY -> SL or RR */ + SLOT->evc = SLOT->SL; + SLOT->eve = EG_DED; + if(SLOT->eg_typ) + { + SLOT->evs = 0; + } + 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->evs = 0; + break; + } + } + /* calcrate envelope */ + return SLOT->TLL+ENV_CURVE[SLOT->evc>>ENV_BITS]+(SLOT->ams ? ams : 0); +} + +/* set algorithm connection */ +static void set_algorithm( OPL_CH *CH) +{ + INT32 *carrier = &outd[0]; + CH->connect1 = CH->CON ? carrier : &feedback2; + CH->connect2 = carrier; +} + +/* ---------- frequency counter for operater update ---------- */ +static inline void CALC_FCSLOT(OPL_CH *CH,OPL_SLOT *SLOT) +{ + int ksr; + + /* frequency step counter */ + SLOT->Incr = CH->fc * SLOT->mul; + ksr = CH->kcode >> SLOT->KSR; + + if( SLOT->ksr != ksr ) + { + SLOT->ksr = ksr; + /* attack , decay rate recalcration */ + SLOT->evsa = SLOT->AR[ksr]; + SLOT->evsd = SLOT->DR[ksr]; + SLOT->evsr = SLOT->RR[ksr]; + } + SLOT->TLL = SLOT->TL + (CH->ksl_base>>SLOT->ksl); +} + +/* set multi,am,vib,EG-TYP,KSR,mul */ +static 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 */ +static 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 = (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); + } +} + +/* set attack rate & decay rate */ +static 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->evsa = SLOT->AR[SLOT->ksr]; + 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; +} + +/* set sustain level & release rate */ +static 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; + SLOT->RR = &OPL->DR_TABLE[rr<<2]; + SLOT->evsr = SLOT->RR[SLOT->ksr]; + 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] +/* ---------- calcrate one of channel ---------- */ +static inline void OPL_CALC_CH( OPL_CH *CH ) +{ + UINT32 env_out; + OPL_SLOT *SLOT; + + feedback2 = 0; + /* SLOT 1 */ + SLOT = &CH->SLOT[SLOT1]; + 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; + /* connectoion */ + 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); + } + else + { + *CH->connect1 += OP_OUT(SLOT,env_out,0); + } + }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 < EG_ENT-1 ) + { + /* PG */ + if(SLOT->vib) SLOT->Cnt += (SLOT->Incr*vib/VIB_RATE); + else SLOT->Cnt += SLOT->Incr; + /* connectoion */ + outd[0] += OP_OUT(SLOT,env_out, feedback2); + } +} + +/* ---------- calcrate rhythm block ---------- */ +#define WHITE_NOISE_db 6.0 +static inline void OPL_CALC_RH( OPL_CH *CH ) +{ + UINT32 env_tam,env_sd,env_top,env_hh; + int whitenoise = (rand()&1)*(WHITE_NOISE_db/EG_STEP); + INT32 tone8; + + OPL_SLOT *SLOT; + int env_out; + + /* BD : same as FM serial mode and output level is large */ + feedback2 = 0; + /* SLOT 1 */ + SLOT = &CH[6].SLOT[SLOT1]; + 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; + /* connectoion */ + 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); + } + else + { + feedback2 = OP_OUT(SLOT,env_out,0); + } + }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 ) + { + /* PG */ + 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; + } + + // 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; + + /* 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); + + tone8 = OP_OUT(SLOT8_2,whitenoise,0 ); + + /* SD */ + if( env_sd < EG_ENT-1 ) + outd[0] += OP_OUT(SLOT7_1,env_sd, 0)*8; + /* TAM */ + if( env_tam < EG_ENT-1 ) + outd[0] += OP_OUT(SLOT8_1,env_tam, 0)*2; + /* TOP-CY */ + if( env_top < EG_ENT-1 ) + outd[0] += OP_OUT(SLOT7_2,env_top,tone8)*2; + /* HH */ + if( env_hh < 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 ) +{ + 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] = rate / ARRATE; + OPL->DR_TABLE[i] = rate / DRRATE; + } + for (i = 60; i < ARRAY_SIZE(OPL->AR_TABLE); i++) + { + OPL->AR_TABLE[i] = EG_AED-1; + OPL->DR_TABLE[i] = OPL->DR_TABLE[60]; + } +#if 0 + for (i = 0;i < 64 ;i++){ /* make for overflow area */ + LOG(LOG_WAR, ("rate %2d , ar %f ms , dr %f ms\n", i, + ((double)(EG_ENT<AR_TABLE[i]) * (1000.0 / OPL->rate), + ((double)(EG_ENT<DR_TABLE[i]) * (1000.0 / OPL->rate) )); + } +#endif +} + +/* ---------- generic table initialize ---------- */ +static int OPLOpenTable( void ) +{ + int s,t; + double rate; + int i,j; + double pom; + + /* allocate dynamic tables */ + if( (TL_TABLE = malloc(TL_MAX*2*sizeof(INT32))) == NULL) + return 0; + if( (SIN_TABLE = malloc(SIN_ENT*4 *sizeof(INT32 *))) == NULL) + { + free(TL_TABLE); + return 0; + } + if( (AMS_TABLE = malloc(AMS_ENT*2 *sizeof(INT32))) == NULL) + { + free(TL_TABLE); + free(SIN_TABLE); + return 0; + } + if( (VIB_TABLE = malloc(VIB_ENT*2 *sizeof(INT32))) == 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]; +/* LOG(LOG_INF,("TotalLevel(%3d) = %x\n",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; + } + + /* 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 */ + j = 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]; + /* degree 180 - 270 , degree 360 - 270 : minus section */ + SIN_TABLE[SIN_ENT/2+s] = SIN_TABLE[SIN_ENT -s] = &TL_TABLE[TL_MAX+j]; +/* LOG(LOG_INF,("sin(%3d) = %f:%f db\n",s,pom,(double)j * EG_STEP));*/ + } + 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; + } + /* off */ + 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 */ + OPL_KEYOFF(slot1); + OPL_KEYOFF(slot2); + /* total level latch */ + slot1->TLL = slot1->TL + (CH->ksl_base>>slot1->ksl); + slot1->TLL = slot1->TL + (CH->ksl_base>>slot1->ksl); + /* key on */ + CH->op1_out[0] = CH->op1_out[1] = 0; + OPL_KEYON(slot1); + OPL_KEYON(slot2); +} + +/* ---------- opl initialize ---------- */ +static void OPL_initialize(FM_OPL *OPL) +{ + int fn; + + /* frequency base */ + 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 ); + /* make fnumber -> increment counter table */ + for( fn=0 ; fn < 1024 ; fn++ ) + { + OPL->FN_TABLE[fn] = OPL->freqbase * fn * FREQ_RATE * (1<<7) / 2; + } + /* LFO freq.table */ + OPL->amsIncr = OPL->rate ? (double)AMS_ENT*(1<rate * 3.7 * ((double)OPL->clock/3600000) : 0; + OPL->vibIncr = OPL->rate ? (double)VIB_ENT*(1<rate * 6.4 * ((double)OPL->clock/3600000) : 0; +} + +/* ---------- write a OPL registers ---------- */ +static void OPLWriteReg(FM_OPL *OPL, int r, int v) +{ + OPL_CH *CH; + int slot; + int block_fnum; + + switch(r&0xe0) + { + case 0x00: /* 00-1f:control */ + switch(r&0x1f) + { + case 0x01: + /* wave selector enable */ + if(OPL->type&OPL_TYPE_WAVESEL) + { + OPL->wavesel = v&0x20; + if(!OPL->wavesel) + { + /* preset compatible mode */ + int 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]; + } + } + } + return; + case 0x02: /* Timer 1 */ + OPL->T[0] = (256-v)*4; + break; + case 0x03: /* Timer 2 */ + 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); + } + 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); + /* timer 2 */ + 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); + } + /* timer 1 */ + 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); + } + } + return; +#if BUILD_Y8950 + case 0x06: /* Key Board OUT */ + if(OPL->type&OPL_TYPE_KEYBOARD) + { + if(OPL->keyboardhandler_w) + OPL->keyboardhandler_w(OPL->keyboard_param,v); + else + LOG(LOG_WAR,("OPL:write unmapped KEYBOARD port\n")); + } + return; + case 0x07: /* DELTA-T control : START,REC,MEMDATA,REPT,SPOFF,x,x,RST */ + if(OPL->type&OPL_TYPE_ADPCM) + YM_DELTAT_ADPCM_Write(OPL->deltat,r-0x07,v); + return; + case 0x08: /* MODE,DELTA-T : CSM,NOTESEL,x,x,smpl,da/ad,64k,rom */ + OPL->mode = v; + v&=0x1f; /* for DELTA-T unit */ + case 0x09: /* START ADD */ + case 0x0a: + case 0x0b: /* STOP ADD */ + case 0x0c: + case 0x0d: /* PRESCALE */ + case 0x0e: + case 0x0f: /* ADPCM data */ + case 0x10: /* DELTA-N */ + case 0x11: /* DELTA-N */ + case 0x12: /* EG-CTRL */ + if(OPL->type&OPL_TYPE_ADPCM) + YM_DELTAT_ADPCM_Write(OPL->deltat,r-0x07,v); + return; +#if 0 + case 0x15: /* DAC data */ + case 0x16: + case 0x17: /* SHIFT */ + return; + case 0x18: /* I/O CTRL (Direction) */ + if(OPL->type&OPL_TYPE_IO) + OPL->portDirection = v&0x0f; + return; + case 0x19: /* I/O DATA */ + if(OPL->type&OPL_TYPE_IO) + { + OPL->portLatch = v; + if(OPL->porthandler_w) + OPL->porthandler_w(OPL->port_param,v&OPL->portDirection); + } + return; + case 0x1a: /* PCM data */ + return; +#endif +#endif + } + break; + case 0x20: /* am,vib,ksr,eg type,mul */ + slot = slot_array[r&0x1f]; + if(slot == -1) return; + set_mul(OPL,slot,v); + return; + case 0x40: + slot = slot_array[r&0x1f]; + if(slot == -1) return; + set_ksl_tl(OPL,slot,v); + return; + case 0x60: + slot = slot_array[r&0x1f]; + if(slot == -1) return; + set_ar_dr(OPL,slot,v); + return; + case 0x80: + slot = slot_array[r&0x1f]; + if(slot == -1) return; + set_sl_rr(OPL,slot,v); + return; + case 0xa0: + switch(r) + { + case 0xbd: + /* amsep,vibdep,r,bd,sd,tom,tc,hh */ + { + UINT8 rkey = OPL->rhythm^v; + OPL->ams_table = &AMS_TABLE[v&0x80 ? AMS_ENT : 0]; + OPL->vib_table = &VIB_TABLE[v&0x40 ? VIB_ENT : 0]; + OPL->rhythm = v&0x3f; + if(OPL->rhythm&0x20) + { +#if 0 + usrintf_showmessage("OPL Rhythm mode select"); +#endif + /* BD key on/off */ + 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 + { + 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]); + }/* 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]); + } + /* 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]); + } + /* 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]); + } + } + } + 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; + } + 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 + { + 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; + 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; + CALC_FCSLOT(CH,&CH->SLOT[SLOT1]); + CALC_FCSLOT(CH,&CH->SLOT[SLOT2]); + } + return; + case 0xc0: + /* FB,C */ + 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_algorithm(CH); + } + return; + case 0xe0: /* wave type */ + slot = slot_array[r&0x1f]; + if(slot == -1) return; + CH = &OPL->P_CH[slot/2]; + if(OPL->wavesel) + { + /* LOG(LOG_INF,("OPL SLOT %d wave select %d\n",slot,v&3)); */ + CH->SLOT[slot&1].wavetable = &SIN_TABLE[(v&0x03)*SIN_ENT]; + } + return; + } +} + +/* lock/unlock for common table */ +static int OPL_LockTable(void) +{ + num_lock++; + if(num_lock>1) return 0; + /* first time */ + cur_chip = NULL; + /* allocate total level table (128kb space) */ + if( !OPLOpenTable() ) + { + num_lock--; + return -1; + } + return 0; +} + +static void OPL_UnLockTable(void) +{ + if(num_lock) num_lock--; + if(num_lock) return; + /* last time */ + cur_chip = NULL; + OPLCloseTable(); +} + +#if (BUILD_YM3812 || BUILD_YM3526) +/*******************************************************************************/ +/* YM3812 local section */ +/*******************************************************************************/ + +/* ---------- update one of chip ----------- */ +void YM3812UpdateOne(FM_OPL *OPL, INT16 *buffer, int length) +{ + int i; + int data; + OPLSAMPLE *buf = buffer; + UINT32 amsCnt = OPL->amsCnt; + UINT32 vibCnt = OPL->vibCnt; + UINT8 rhythm = OPL->rhythm&0x20; + OPL_CH *CH,*R_CH; + + if( (void *)OPL != cur_chip ){ + cur_chip = (void *)OPL; + /* channel pointers */ + S_CH = OPL->P_CH; + E_CH = &S_CH[9]; + /* rhythm slot */ + SLOT7_1 = &S_CH[7].SLOT[SLOT1]; + SLOT7_2 = &S_CH[7].SLOT[SLOT2]; + SLOT8_1 = &S_CH[8].SLOT[SLOT1]; + SLOT8_2 = &S_CH[8].SLOT[SLOT2]; + /* LFO state */ + amsIncr = OPL->amsIncr; + vibIncr = OPL->vibIncr; + ams_table = OPL->ams_table; + vib_table = OPL->vib_table; + } + R_CH = rhythm ? &S_CH[6] : E_CH; + 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]; + outd[0] = 0; + /* FM part */ + for(CH=S_CH ; CH < R_CH ; CH++) + OPL_CALC_CH(CH); + /* Rythn part */ + if(rhythm) + OPL_CALC_RH(S_CH); + /* limit check */ + data = Limit( outd[0] , OPL_MAXOUT, OPL_MINOUT ); + /* store to sound buffer */ + buf[i] = data >> OPL_OUTSB; + } + + OPL->amsCnt = amsCnt; + OPL->vibCnt = vibCnt; +#ifdef OPL_OUTPUT_LOG + if(opl_dbg_fp) + { + for(opl_dbg_chip=0;opl_dbg_chipamsCnt; + UINT32 vibCnt = OPL->vibCnt; + UINT8 rhythm = OPL->rhythm&0x20; + OPL_CH *CH,*R_CH; + YM_DELTAT *DELTAT = OPL->deltat; + + /* setup DELTA-T unit */ + YM_DELTAT_DECODE_PRESET(DELTAT); + + if( (void *)OPL != cur_chip ){ + cur_chip = (void *)OPL; + /* channel pointers */ + S_CH = OPL->P_CH; + E_CH = &S_CH[9]; + /* rhythm slot */ + SLOT7_1 = &S_CH[7].SLOT[SLOT1]; + SLOT7_2 = &S_CH[7].SLOT[SLOT2]; + SLOT8_1 = &S_CH[8].SLOT[SLOT1]; + SLOT8_2 = &S_CH[8].SLOT[SLOT2]; + /* LFO state */ + amsIncr = OPL->amsIncr; + vibIncr = OPL->vibIncr; + ams_table = OPL->ams_table; + vib_table = OPL->vib_table; + } + R_CH = rhythm ? &S_CH[6] : E_CH; + 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]; + outd[0] = 0; + /* deltaT ADPCM */ + if( DELTAT->portstate ) + YM_DELTAT_ADPCM_CALC(DELTAT); + /* FM part */ + for(CH=S_CH ; CH < R_CH ; CH++) + OPL_CALC_CH(CH); + /* Rythn part */ + if(rhythm) + OPL_CALC_RH(S_CH); + /* limit check */ + data = Limit( outd[0] , OPL_MAXOUT, OPL_MINOUT ); + /* store to sound buffer */ + buf[i] = data >> OPL_OUTSB; + } + OPL->amsCnt = amsCnt; + OPL->vibCnt = vibCnt; + /* deltaT START flag */ + if( !DELTAT->portstate ) + OPL->status &= 0xfe; +} +#endif + +/* ---------- reset one of chip ---------- */ +void OPLResetChip(FM_OPL *OPL) +{ + int c,s; + int i; + + /* reset chip */ + 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); + /* reset OPerator paramater */ + 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++ ) + { + /* 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].evs = 0; + } + } +#if BUILD_Y8950 + if(OPL->type&OPL_TYPE_ADPCM) + { + YM_DELTAT *DELTAT = OPL->deltat; + + DELTAT->freqbase = OPL->freqbase; + DELTAT->output_pointer = outd; + DELTAT->portshift = 5; + DELTAT->output_range = DELTAT_MIXING_LEVEL<P_CH = (OPL_CH *)ptr; ptr+=sizeof(OPL_CH)*max_ch; +#if BUILD_Y8950 + if(type&OPL_TYPE_ADPCM) OPL->deltat = (YM_DELTAT *)ptr; ptr+=sizeof(YM_DELTAT); +#endif + /* set channel state pointer */ + OPL->type = type; + OPL->clock = clock; + OPL->rate = rate; + OPL->max_ch = max_ch; + /* init grobal tables */ + OPL_initialize(OPL); + /* reset chip */ + OPLResetChip(OPL); +#ifdef OPL_OUTPUT_LOG + if(!opl_dbg_fp) + { + opl_dbg_fp = fopen("opllog.opl","wb"); + opl_dbg_maxchip = 0; + } + if(opl_dbg_fp) + { + opl_dbg_opl[opl_dbg_maxchip] = OPL; + fprintf(opl_dbg_fp,"%c%c%c%c%c%c",0x00+opl_dbg_maxchip, + type, + clock&0xff, + (clock/0x100)&0xff, + (clock/0x10000)&0xff, + (clock/0x1000000)&0xff); + opl_dbg_maxchip++; + } +#endif + return OPL; +} + +/* ---------- Destroy one of vietual YM3812 ---------- */ +void OPLDestroy(FM_OPL *OPL) +{ +#ifdef OPL_OUTPUT_LOG + if(opl_dbg_fp) + { + fclose(opl_dbg_fp); + opl_dbg_fp = NULL; + } +#endif + OPL_UnLockTable(); + free(OPL); +} + +/* ---------- Option handlers ---------- */ + +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) +{ + OPL->IRQHandler = IRQHandler; + OPL->IRQParam = param; +} +void OPLSetUpdateHandler(FM_OPL *OPL,OPL_UPDATEHANDLER UpdateHandler,int param) +{ + OPL->UpdateHandler = UpdateHandler; + OPL->UpdateParam = param; +} +#if BUILD_Y8950 +void OPLSetPortHandler(FM_OPL *OPL,OPL_PORTHANDLER_W PortHandler_w,OPL_PORTHANDLER_R PortHandler_r,int param) +{ + OPL->porthandler_w = PortHandler_w; + OPL->porthandler_r = PortHandler_r; + OPL->port_param = param; +} + +void OPLSetKeyboardHandler(FM_OPL *OPL,OPL_PORTHANDLER_W KeyboardHandler_w,OPL_PORTHANDLER_R KeyboardHandler_r,int param) +{ + OPL->keyboardhandler_w = KeyboardHandler_w; + OPL->keyboardhandler_r = KeyboardHandler_r; + OPL->keyboard_param = param; +} +#endif +/* ---------- YM3812 I/O interface ---------- */ +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); +#ifdef OPL_OUTPUT_LOG + if(opl_dbg_fp) + { + for(opl_dbg_chip=0;opl_dbg_chipaddress,v); + } +#endif + OPLWriteReg(OPL,OPL->address,v); + } + return OPL->status>>7; +} + +unsigned char OPLRead(FM_OPL *OPL,int a) +{ + if( !(a&1) ) + { /* status port */ + return OPL->status & (OPL->statusmask|0x80); + } + /* data port */ + switch(OPL->address) + { + case 0x05: /* KeyBoard IN */ + if(OPL->type&OPL_TYPE_KEYBOARD) + { + if(OPL->keyboardhandler_r) + return OPL->keyboardhandler_r(OPL->keyboard_param); + else { + LOG(LOG_WAR,("OPL:read unmapped KEYBOARD port\n")); + } + } + return 0; +#if 0 + case 0x0f: /* ADPCM-DATA */ + return 0; +#endif + case 0x19: /* I/O DATA */ + if(OPL->type&OPL_TYPE_IO) + { + if(OPL->porthandler_r) + return OPL->porthandler_r(OPL->port_param); + else { + LOG(LOG_WAR,("OPL:read unmapped I/O port\n")); + } + } + return 0; + case 0x1a: /* PCM-DATA */ + return 0; + } + return 0; +} + +int OPLTimerOver(FM_OPL *OPL,int c) +{ + if( c ) + { /* Timer B */ + OPL_STATUS_SET(OPL,0x20); + } + else + { /* Timer A */ + OPL_STATUS_SET(OPL,0x40); + /* CSM mode key,TL control */ + 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] ); + } + } + /* reload timer */ + if (OPL->TimerHandler) (OPL->TimerHandler)(OPL->TimerParam+c,(double)OPL->T[c]*OPL->TimerBase); + return OPL->status>>7; +} -- cgit 1.2.3-korg