1092 lines
32 KiB
C++
1092 lines
32 KiB
C++
/**
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* Furnace Tracker - multi-system chiptune tracker
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* Copyright (C) 2021-2024 tildearrow and contributors
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "nes.h"
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#include "sound/nes/cpu_inline.h"
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#include "../engine.h"
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#include "../../ta-log.h"
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#include <stddef.h>
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#include <math.h>
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struct _nla_table nla_table;
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#define CHIP_DIVIDER 16
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#define rWrite(a,v) if (!skipRegisterWrites) {writes.push(QueuedWrite((a),v)); if (dumpWrites) {addWrite((a),v);} }
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const char* regCheatSheetNES[]={
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"S0Volume", "4000",
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"S0Sweep", "4001",
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"S0PeriodL", "4002",
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"S0PeriodH", "4003",
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"S1Volume", "4004",
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"S1Sweep", "4005",
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"S1PeriodL", "4006",
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"S1PeriodH", "4007",
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"TRVolume", "4008",
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"TRPeriodL", "400A",
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"TRPeriodH", "400B",
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"NSVolume", "400C",
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"NSPeriod", "400E",
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"NSLength", "400F",
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"DMCControl", "4010",
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"DMCLoad", "4011",
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"DMCAddr", "4012",
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"DMCLength", "4013",
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"APUControl", "4015",
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"APUFrameCtl", "4017",
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NULL
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};
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unsigned char _readDMC(void* user, unsigned short addr) {
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return ((DivPlatformNES*)user)->readDMC(addr);
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}
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const char** DivPlatformNES::getRegisterSheet() {
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return regCheatSheetNES;
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}
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void DivPlatformNES::doWrite(unsigned short addr, unsigned char data) {
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if (useNP) {
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if (isE) {
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e1_NP->Write(addr,data);
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e2_NP->Write(addr,data);
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} else {
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nes1_NP->Write(addr,data);
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nes2_NP->Write(addr,data);
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}
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} else {
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apu_wr_reg(nes,addr,data);
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}
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}
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#define doPCM \
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if (!dpcmMode && dacSample!=-1) { \
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dacPeriod+=dacRate; \
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if (dacPeriod>=rate) { \
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DivSample* s=parent->getSample(dacSample); \
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if (s->samples>0 && dacPos<s->samples) { \
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if (!isMuted[4]) { \
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unsigned char next=((unsigned char)s->data8[dacPos]+0x80)>>1; \
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if (dacAntiClickOn && dacAntiClick<next) { \
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dacAntiClick+=8; \
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doWrite(0x4011,dacAntiClick); \
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} else { \
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dacAntiClickOn=false; \
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doWrite(0x4011,next); \
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} \
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} \
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dacPos++; \
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if (s->isLoopable() && dacPos>=(unsigned int)s->loopEnd) { \
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dacPos=s->loopStart; \
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} else if (dacPos>=s->samples) { \
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dacSample=-1; \
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} \
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dacPeriod-=rate; \
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} else { \
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dacSample=-1; \
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} \
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} \
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}
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void DivPlatformNES::acquire_puNES(short** buf, size_t len) {
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for (size_t i=0; i<len; i++) {
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doPCM;
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if (!writes.empty()) {
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QueuedWrite w=writes.front();
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doWrite(w.addr,w.val);
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regPool[w.addr&0x1f]=w.val;
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writes.pop();
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}
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apu_tick(nes,NULL);
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nes->apu.odd_cycle=!nes->apu.odd_cycle;
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if (nes->apu.clocked) {
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nes->apu.clocked=false;
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}
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int sample=(pulse_output(nes)+tnd_output(nes))<<6;
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if (sample>32767) sample=32767;
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if (sample<-32768) sample=-32768;
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buf[0][i]=sample;
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if (++writeOscBuf>=32) {
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writeOscBuf=0;
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oscBuf[0]->data[oscBuf[0]->needle++]=isMuted[0]?0:(nes->S1.output<<11);
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oscBuf[1]->data[oscBuf[1]->needle++]=isMuted[1]?0:(nes->S2.output<<11);
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oscBuf[2]->data[oscBuf[2]->needle++]=isMuted[2]?0:(nes->TR.output<<11);
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oscBuf[3]->data[oscBuf[3]->needle++]=isMuted[3]?0:(nes->NS.output<<11);
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oscBuf[4]->data[oscBuf[4]->needle++]=isMuted[4]?0:(nes->DMC.output<<8);
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}
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}
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}
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void DivPlatformNES::acquire_NSFPlay(short** buf, size_t len) {
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int out1[2];
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int out2[2];
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for (size_t i=0; i<len; i++) {
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doPCM;
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if (!writes.empty()) {
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QueuedWrite w=writes.front();
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doWrite(w.addr,w.val);
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regPool[w.addr&0x1f]=w.val;
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writes.pop();
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}
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nes1_NP->Tick(8);
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nes2_NP->TickFrameSequence(8);
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nes2_NP->Tick(8);
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nes1_NP->Render(out1);
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nes2_NP->Render(out2);
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int sample=(out1[0]+out1[1]+out2[0]+out2[1])<<1;
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if (sample>32767) sample=32767;
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if (sample<-32768) sample=-32768;
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buf[0][i]=sample;
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if (++writeOscBuf>=4) {
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writeOscBuf=0;
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oscBuf[0]->data[oscBuf[0]->needle++]=nes1_NP->out[0]<<11;
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oscBuf[1]->data[oscBuf[1]->needle++]=nes1_NP->out[1]<<11;
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oscBuf[2]->data[oscBuf[2]->needle++]=nes2_NP->out[0]<<11;
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oscBuf[3]->data[oscBuf[3]->needle++]=nes2_NP->out[1]<<11;
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oscBuf[4]->data[oscBuf[4]->needle++]=nes2_NP->out[2]<<8;
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}
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}
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}
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void DivPlatformNES::acquire_NSFPlayE(short** buf, size_t len) {
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int out1[2];
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int out2[2];
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for (size_t i=0; i<len; i++) {
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doPCM;
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e1_NP->Tick(8);
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e2_NP->TickFrameSequence(8);
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e2_NP->Tick(8);
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e1_NP->Render(out1);
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e2_NP->Render(out2);
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int sample=(out1[0]+out1[1]+out2[0]+out2[1])<<1;
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if (sample>32767) sample=32767;
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if (sample<-32768) sample=-32768;
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buf[0][i]=sample;
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if (++writeOscBuf>=4) {
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writeOscBuf=0;
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oscBuf[0]->data[oscBuf[0]->needle++]=e1_NP->out[0]<<11;
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oscBuf[1]->data[oscBuf[1]->needle++]=e1_NP->out[1]<<11;
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oscBuf[2]->data[oscBuf[2]->needle++]=e2_NP->out[0]<<11;
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oscBuf[3]->data[oscBuf[3]->needle++]=e2_NP->out[1]<<11;
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oscBuf[4]->data[oscBuf[4]->needle++]=e2_NP->out[2]<<8;
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}
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}
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}
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void DivPlatformNES::acquire(short** buf, size_t len) {
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if (useNP) {
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if (isE) {
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acquire_NSFPlayE(buf,len);
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} else {
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acquire_NSFPlay(buf,len);
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}
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} else {
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acquire_puNES(buf,len);
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}
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}
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static unsigned char noiseTable[253]={
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6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4,
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15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4,
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15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4,
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3, 2, 1, 0, 11, 10, 9, 8, 7, 6, 5, 4,
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15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4,
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3, 2, 1, 0, 11, 10, 9, 8, 7, 6, 5, 4,
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15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4,
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3, 2, 1, 0, 11, 10, 9, 8, 7, 6, 5, 4,
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15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
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15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
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15
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};
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unsigned char DivPlatformNES::calcDPCMRate(int inRate) {
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if (inRate<4450) return 0;
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if (inRate<5000) return 1;
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if (inRate<5400) return 2;
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if (inRate<5900) return 3;
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if (inRate<6650) return 4;
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if (inRate<7450) return 5;
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if (inRate<8100) return 6;
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if (inRate<8800) return 7;
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if (inRate<10200) return 8;
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if (inRate<11700) return 9;
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if (inRate<13300) return 10;
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if (inRate<15900) return 11;
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if (inRate<18900) return 12;
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if (inRate<23500) return 13;
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if (inRate<29000) return 14;
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return 15;
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}
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void DivPlatformNES::tick(bool sysTick) {
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for (int i=0; i<4; i++) {
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chan[i].std.next();
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if (chan[i].std.vol.had) {
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// ok, why are the volumes like that?
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chan[i].outVol=VOL_SCALE_LINEAR_BROKEN(chan[i].vol&15,MIN(15,chan[i].std.vol.val),15);
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if (chan[i].outVol<0) chan[i].outVol=0;
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if (i==2) { // triangle
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rWrite(0x4000+i*4,(chan[i].outVol==0)?0:linearCount);
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chan[i].freqChanged=true;
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} else {
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rWrite(0x4000+i*4,(chan[i].envMode<<4)|chan[i].outVol|((chan[i].duty&3)<<6));
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}
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}
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if (NEW_ARP_STRAT) {
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chan[i].handleArp();
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} else if (chan[i].std.arp.had) {
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if (i==3) { // noise
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chan[i].baseFreq=parent->calcArp(chan[i].note,chan[i].std.arp.val);
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if (chan[i].baseFreq>255) chan[i].baseFreq=255;
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if (chan[i].baseFreq<0) chan[i].baseFreq=0;
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} else {
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if (!chan[i].inPorta) {
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chan[i].baseFreq=NOTE_PERIODIC(parent->calcArp(chan[i].note,chan[i].std.arp.val));
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}
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}
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chan[i].freqChanged=true;
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}
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if (chan[i].std.duty.had) {
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chan[i].duty=chan[i].std.duty.val;
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if (i==3) {
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if (parent->song.properNoiseLayout) {
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chan[i].duty&=1;
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} else if (chan[i].duty>1) {
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chan[i].duty=1;
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}
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}
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if (i!=2) {
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rWrite(0x4000+i*4,(chan[i].envMode<<4)|chan[i].outVol|((chan[i].duty&3)<<6));
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} else if (isE) {
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rWrite(0x4000+9,chan[i].duty);
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}
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if (i==3) { // noise
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chan[i].freqChanged=true;
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}
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}
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if (chan[i].std.pitch.had) {
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if (chan[i].std.pitch.mode) {
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chan[i].pitch2+=chan[i].std.pitch.val;
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CLAMP_VAR(chan[i].pitch2,-32768,32767);
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} else {
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chan[i].pitch2=chan[i].std.pitch.val;
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}
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chan[i].freqChanged=true;
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}
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if (chan[i].sweepChanged) {
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chan[i].sweepChanged=false;
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if (i==0) {
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// rWrite(16+i*5,chan[i].sweep);
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}
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}
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if (i<3) if (chan[i].std.phaseReset.had) {
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if (chan[i].std.phaseReset.val==1) {
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chan[i].freqChanged=true;
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chan[i].prevFreq=-1;
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}
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}
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if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
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if (i==3) { // noise
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int ntPos=chan[i].baseFreq;
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if (NEW_ARP_STRAT) {
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if (chan[i].fixedArp) {
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ntPos=chan[i].baseNoteOverride;
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} else {
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ntPos+=chan[i].arpOff;
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}
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}
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ntPos+=chan[i].pitch2;
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if (isE) {
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chan[i].freq=31-(ntPos&31);
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} else if (parent->song.properNoiseLayout) {
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chan[i].freq=15-(ntPos&15);
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} else {
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if (ntPos<0) ntPos=0;
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if (ntPos>252) ntPos=252;
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chan[i].freq=noiseTable[ntPos];
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}
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} else {
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chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,chan[i].fixedArp?chan[i].baseNoteOverride:chan[i].arpOff,chan[i].fixedArp,true,0,chan[i].pitch2,chipClock,CHIP_DIVIDER)-1;
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if (chan[i].freq>2047) chan[i].freq=2047;
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if (chan[i].freq<0) chan[i].freq=0;
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}
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if (chan[i].keyOn) {
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// retrigger if sweep is on
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if (chan[i].sweep!=0x08) {
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chan[i].prevFreq=-1;
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}
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}
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if (chan[i].keyOff) {
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// rWrite(16+i*5+2,8);
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if (i==2) { // triangle
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rWrite(0x4000+i*4,0x00);
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} else {
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rWrite(0x4000+i*4,0x30);
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}
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}
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if (i==3) { // noise
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rWrite(0x4002+i*4,(chan[i].duty<<7)|chan[i].freq);
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rWrite(0x4003+i*4,(chan[i].len<<3));
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} else {
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rWrite(0x4002+i*4,chan[i].freq&0xff);
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if ((chan[i].prevFreq>>8)!=(chan[i].freq>>8) || i==2) {
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rWrite(0x4003+i*4,(chan[i].len<<3)|(chan[i].freq>>8));
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}
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if (chan[i].freq!=65535 && chan[i].freq!=0) {
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chan[i].prevFreq=chan[i].freq;
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}
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}
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if (chan[i].keyOn) chan[i].keyOn=false;
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if (chan[i].keyOff) chan[i].keyOff=false;
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chan[i].freqChanged=false;
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}
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}
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// PCM
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if (chan[4].freqChanged || chan[4].keyOn) {
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chan[4].freq=parent->calcFreq(chan[4].baseFreq,chan[4].pitch,chan[4].fixedArp?chan[4].baseNoteOverride:chan[4].arpOff,chan[4].fixedArp,false);
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if (chan[4].furnaceDac) {
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double off=1.0;
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if (dacSample>=0 && dacSample<parent->song.sampleLen) {
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DivSample* s=parent->getSample(dacSample);
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off=(double)s->centerRate/8363.0;
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}
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dacRate=MIN(chan[4].freq*off,32000);
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if (chan[4].keyOn) {
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if (dpcmMode && !skipRegisterWrites && dacSample>=0 && dacSample<parent->song.sampleLen) {
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unsigned int dpcmAddr=sampleOffDPCM[dacSample]+(dacPos>>3);
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int dpcmLen=(parent->getSample(dacSample)->lengthDPCM-(dacPos>>3))>>4;
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if (dpcmLen<0) dpcmLen=0;
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if (dpcmLen>255) dpcmLen=255;
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goingToLoop=parent->getSample(dacSample)->isLoopable();
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// write DPCM
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rWrite(0x4015,15);
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if (nextDPCMFreq>=0) {
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rWrite(0x4010,nextDPCMFreq|(goingToLoop?0x40:0));
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nextDPCMFreq=-1;
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} else {
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rWrite(0x4010,calcDPCMRate(dacRate)|(goingToLoop?0x40:0));
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}
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if (nextDPCMDelta>=0) {
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rWrite(0x4011,nextDPCMDelta);
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nextDPCMDelta=-1;
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}
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rWrite(0x4012,(dpcmAddr>>6)&0xff);
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rWrite(0x4013,dpcmLen&0xff);
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rWrite(0x4015,31);
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if (dpcmBank!=(dpcmAddr>>14)) {
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dpcmBank=dpcmAddr>>14;
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logV("switching bank to %d",dpcmBank);
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if (dumpWrites) addWrite(0xffff0004,dpcmBank);
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}
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// sample custom loop point...
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DivSample* lsamp=parent->getSample(dacSample);
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// how it works:
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// when the initial sample info is written (see above) and playback is launched,
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// the parameters (start point in memory and length) are locked until sample end
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// is reached.
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// thus, if we write new data after just several APU clock cycles, it will be used only when
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// sample finishes one full loop.
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// thus we can write sample's loop point as "start address" and sample's looped part length
|
|
// as "full sample length".
|
|
|
|
// APU will play full sample once and then repeatedly cycle through the looped part.
|
|
|
|
// sources:
|
|
// https://www.nesdev.org/wiki/APU_DMC
|
|
// https://www.youtube.com/watch?v=vB4P8x2Am6Y
|
|
|
|
if (lsamp->loopEnd>lsamp->loopStart && goingToLoop) {
|
|
int loopStartAddr=(sampleOffDPCM[dacSample]+lsamp->loopStart)>>3;
|
|
int loopLen=(lsamp->loopEnd-lsamp->loopStart)>>3;
|
|
|
|
rWrite(0x4012,(loopStartAddr>>6)&0xff);
|
|
rWrite(0x4013,(loopLen>>4)&0xff);
|
|
}
|
|
}
|
|
} else {
|
|
if (nextDPCMFreq>=0) {
|
|
rWrite(0x4010,nextDPCMFreq|(goingToLoop?0x40:0));
|
|
nextDPCMFreq=-1;
|
|
} else {
|
|
rWrite(0x4010,calcDPCMRate(dacRate)|(goingToLoop?0x40:0));
|
|
}
|
|
}
|
|
if (dumpWrites && !dpcmMode) addWrite(0xffff0001,dacRate);
|
|
}
|
|
if (chan[4].keyOn) chan[4].keyOn=false;
|
|
chan[4].freqChanged=false;
|
|
}
|
|
|
|
nextDPCMFreq=-1;
|
|
}
|
|
|
|
int DivPlatformNES::dispatch(DivCommand c) {
|
|
switch (c.cmd) {
|
|
case DIV_CMD_NOTE_ON:
|
|
if (c.chan==4) { // PCM
|
|
DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_NES);
|
|
if (ins->type==DIV_INS_AMIGA || (ins->type==DIV_INS_NES && !parent->song.oldDPCM)) {
|
|
if (ins->type==DIV_INS_NES) {
|
|
if (!dpcmMode) {
|
|
dpcmMode=true;
|
|
if (dumpWrites) addWrite(0xffff0002,0);
|
|
dacSample=-1;
|
|
rWrite(0x4015,15);
|
|
rWrite(0x4010,0);
|
|
rWrite(0x4012,0);
|
|
rWrite(0x4013,0);
|
|
rWrite(0x4015,31);
|
|
}
|
|
|
|
if (ins->amiga.useNoteMap) {
|
|
nextDPCMFreq=ins->amiga.getDPCMFreq(c.value);
|
|
if (nextDPCMFreq<0 || nextDPCMFreq>15) nextDPCMFreq=lastDPCMFreq;
|
|
lastDPCMFreq=nextDPCMFreq;
|
|
nextDPCMDelta=ins->amiga.getDPCMDelta(c.value);
|
|
} else {
|
|
if (c.value==DIV_NOTE_NULL) {
|
|
nextDPCMFreq=lastDPCMFreq;
|
|
} else {
|
|
nextDPCMFreq=c.value&15;
|
|
}
|
|
}
|
|
}
|
|
if (c.value!=DIV_NOTE_NULL) {
|
|
dacSample=ins->amiga.getSample(c.value);
|
|
if (ins->type==DIV_INS_AMIGA) {
|
|
chan[c.chan].sampleNote=c.value;
|
|
c.value=ins->amiga.getFreq(c.value);
|
|
chan[c.chan].sampleNoteDelta=c.value-chan[c.chan].sampleNote;
|
|
}
|
|
} else if (chan[c.chan].sampleNote!=DIV_NOTE_NULL) {
|
|
dacSample=ins->amiga.getSample(chan[c.chan].sampleNote);
|
|
if (ins->type==DIV_INS_AMIGA) {
|
|
c.value=ins->amiga.getFreq(chan[c.chan].sampleNote);
|
|
}
|
|
}
|
|
if (dacSample<0 || dacSample>=parent->song.sampleLen) {
|
|
dacSample=-1;
|
|
if (dumpWrites && !dpcmMode) addWrite(0xffff0002,0);
|
|
break;
|
|
} else {
|
|
if (dumpWrites && !dpcmMode) addWrite(0xffff0000,dacSample);
|
|
}
|
|
if (chan[c.chan].setPos) {
|
|
chan[c.chan].setPos=false;
|
|
} else {
|
|
dacPos=0;
|
|
}
|
|
dacPeriod=0;
|
|
if (c.value!=DIV_NOTE_NULL) {
|
|
chan[c.chan].baseFreq=parent->calcBaseFreq(1,1,c.value,false);
|
|
chan[c.chan].freqChanged=true;
|
|
chan[c.chan].note=c.value;
|
|
}
|
|
chan[c.chan].active=true;
|
|
chan[c.chan].keyOn=true;
|
|
chan[c.chan].furnaceDac=true;
|
|
} else {
|
|
if (c.value!=DIV_NOTE_NULL) {
|
|
chan[c.chan].note=c.value;
|
|
}
|
|
dacSample=12*sampleBank+chan[c.chan].note%12;
|
|
if (dacSample>=parent->song.sampleLen) {
|
|
dacSample=-1;
|
|
if (dumpWrites && !dpcmMode) addWrite(0xffff0002,0);
|
|
break;
|
|
} else {
|
|
if (dumpWrites && !dpcmMode) addWrite(0xffff0000,dacSample);
|
|
}
|
|
if (chan[c.chan].setPos) {
|
|
chan[c.chan].setPos=false;
|
|
} else {
|
|
dacPos=0;
|
|
}
|
|
dacPeriod=0;
|
|
dacRate=parent->getSample(dacSample)->rate;
|
|
if (dumpWrites && !dpcmMode) addWrite(0xffff0001,dacRate);
|
|
chan[c.chan].furnaceDac=false;
|
|
if (dpcmMode && !skipRegisterWrites) {
|
|
unsigned int dpcmAddr=sampleOffDPCM[dacSample]+(dacPos>>3);
|
|
int dpcmLen=(parent->getSample(dacSample)->lengthDPCM-(dacPos>>3))>>4;
|
|
if (dpcmLen<0) dpcmLen=0;
|
|
if (dpcmLen>255) dpcmLen=255;
|
|
goingToLoop=parent->getSample(dacSample)->isLoopable();
|
|
// write DPCM
|
|
rWrite(0x4015,15);
|
|
if (nextDPCMFreq>=0) {
|
|
rWrite(0x4010,nextDPCMFreq|(goingToLoop?0x40:0));
|
|
nextDPCMFreq=-1;
|
|
} else {
|
|
rWrite(0x4010,calcDPCMRate(dacRate)|(goingToLoop?0x40:0));
|
|
}
|
|
rWrite(0x4012,(dpcmAddr>>6)&0xff);
|
|
rWrite(0x4013,dpcmLen&0xff);
|
|
rWrite(0x4015,31);
|
|
if (dpcmBank!=(dpcmAddr>>14)) {
|
|
dpcmBank=dpcmAddr>>14;
|
|
logV("switching bank to %d",dpcmBank);
|
|
if (dumpWrites) addWrite(0xffff0004,dpcmBank);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
} else if (c.chan==3) { // noise
|
|
if (c.value!=DIV_NOTE_NULL) {
|
|
chan[c.chan].baseFreq=c.value;
|
|
}
|
|
} else {
|
|
if (c.value!=DIV_NOTE_NULL) {
|
|
chan[c.chan].baseFreq=NOTE_PERIODIC(c.value);
|
|
}
|
|
}
|
|
if (c.value!=DIV_NOTE_NULL) {
|
|
chan[c.chan].freqChanged=true;
|
|
chan[c.chan].note=c.value;
|
|
}
|
|
chan[c.chan].active=true;
|
|
chan[c.chan].keyOn=true;
|
|
chan[c.chan].macroInit(parent->getIns(chan[c.chan].ins,DIV_INS_NES));
|
|
if (!parent->song.brokenOutVol && !chan[c.chan].std.vol.will) {
|
|
chan[c.chan].outVol=chan[c.chan].vol;
|
|
}
|
|
if (c.chan==2) {
|
|
rWrite(0x4000+c.chan*4,linearCount);
|
|
} else if (!parent->song.brokenOutVol2) {
|
|
rWrite(0x4000+c.chan*4,(chan[c.chan].envMode<<4)|chan[c.chan].vol|((chan[c.chan].duty&3)<<6));
|
|
}
|
|
break;
|
|
case DIV_CMD_NOTE_OFF:
|
|
if (c.chan==4) {
|
|
dacSample=-1;
|
|
if (dumpWrites) addWrite(0xffff0002,0);
|
|
if (dpcmMode && !skipRegisterWrites) rWrite(0x4015,15);
|
|
}
|
|
chan[c.chan].active=false;
|
|
chan[c.chan].keyOff=true;
|
|
chan[c.chan].macroInit(NULL);
|
|
break;
|
|
case DIV_CMD_NOTE_OFF_ENV:
|
|
case DIV_CMD_ENV_RELEASE:
|
|
chan[c.chan].std.release();
|
|
break;
|
|
case DIV_CMD_INSTRUMENT:
|
|
if (chan[c.chan].ins!=c.value || c.value2==1) {
|
|
chan[c.chan].ins=c.value;
|
|
}
|
|
break;
|
|
case DIV_CMD_VOLUME:
|
|
if (chan[c.chan].vol!=c.value) {
|
|
chan[c.chan].vol=c.value;
|
|
if (!chan[c.chan].std.vol.has) {
|
|
chan[c.chan].outVol=c.value;
|
|
}
|
|
if (chan[c.chan].active) {
|
|
if (c.chan==2) {
|
|
rWrite(0x4000+c.chan*4,linearCount);
|
|
} else {
|
|
rWrite(0x4000+c.chan*4,(chan[c.chan].envMode<<4)|chan[c.chan].vol|((chan[c.chan].duty&3)<<6));
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case DIV_CMD_GET_VOLUME:
|
|
return chan[c.chan].vol;
|
|
break;
|
|
case DIV_CMD_PITCH:
|
|
chan[c.chan].pitch=c.value;
|
|
chan[c.chan].freqChanged=true;
|
|
break;
|
|
case DIV_CMD_NOTE_PORTA: {
|
|
int destFreq=(c.chan==4)?(parent->calcBaseFreq(1,1,c.value2+chan[c.chan].sampleNoteDelta,false)):(NOTE_PERIODIC(c.value2));
|
|
bool return2=false;
|
|
if (destFreq>chan[c.chan].baseFreq) {
|
|
chan[c.chan].baseFreq+=c.value;
|
|
if (chan[c.chan].baseFreq>=destFreq) {
|
|
chan[c.chan].baseFreq=destFreq;
|
|
return2=true;
|
|
}
|
|
} else {
|
|
chan[c.chan].baseFreq-=c.value;
|
|
if (chan[c.chan].baseFreq<=destFreq) {
|
|
chan[c.chan].baseFreq=destFreq;
|
|
return2=true;
|
|
}
|
|
}
|
|
chan[c.chan].freqChanged=true;
|
|
if (return2) {
|
|
chan[c.chan].inPorta=false;
|
|
return 2;
|
|
}
|
|
break;
|
|
}
|
|
case DIV_CMD_STD_NOISE_MODE:
|
|
chan[c.chan].duty=c.value;
|
|
if (c.chan==3) { // noise
|
|
chan[c.chan].freqChanged=true;
|
|
} else if (c.chan==2 && isE) {
|
|
rWrite(0x4000+9,chan[c.chan].duty);
|
|
} else if (c.chan<2) {
|
|
rWrite(0x4000+c.chan*4,(chan[c.chan].active?((chan[c.chan].envMode<<4)|chan[c.chan].outVol):0x30)|((chan[c.chan].duty&3)<<6));
|
|
}
|
|
break;
|
|
case DIV_CMD_NES_SWEEP:
|
|
if (c.chan>1) break;
|
|
if (c.value2==0) {
|
|
chan[c.chan].sweep=0x08;
|
|
} else {
|
|
if (!c.value) { // down
|
|
chan[c.chan].sweep=0x88|(c.value2&0x77);
|
|
} else { // up
|
|
chan[c.chan].sweep=0x80|(c.value2&0x77);
|
|
}
|
|
}
|
|
rWrite(0x4001+(c.chan*4),chan[c.chan].sweep);
|
|
break;
|
|
case DIV_CMD_NES_ENV_MODE:
|
|
chan[c.chan].envMode=c.value&3;
|
|
if (c.chan==3) { // noise
|
|
chan[c.chan].freqChanged=true;
|
|
} else if (c.chan<2) {
|
|
rWrite(0x4000+c.chan*4,(chan[c.chan].active?((chan[c.chan].envMode<<4)|chan[c.chan].outVol):0x30)|((chan[c.chan].duty&3)<<6));
|
|
}
|
|
break;
|
|
case DIV_CMD_NES_LENGTH:
|
|
if (c.chan>=4) break;
|
|
chan[c.chan].len=c.value&0x1f;
|
|
chan[c.chan].freqChanged=true;
|
|
chan[c.chan].prevFreq=-1;
|
|
break;
|
|
case DIV_CMD_NES_COUNT_MODE:
|
|
countMode=c.value;
|
|
rWrite(0x4017,countMode?0x80:0);
|
|
break;
|
|
case DIV_CMD_NES_LINEAR_LENGTH:
|
|
if (c.chan==2) {
|
|
linearCount=c.value;
|
|
if (chan[c.chan].active) {
|
|
rWrite(0x4000+c.chan*4,(chan[c.chan].outVol==0)?0:linearCount);
|
|
chan[c.chan].freqChanged=true;
|
|
chan[c.chan].prevFreq=-1;
|
|
}
|
|
}
|
|
break;
|
|
case DIV_CMD_NES_DMC:
|
|
rWrite(0x4011,c.value&0x7f);
|
|
break;
|
|
case DIV_CMD_SAMPLE_MODE:
|
|
dpcmMode=c.value;
|
|
if (dumpWrites && dpcmMode) addWrite(0xffff0002,0);
|
|
dacSample=-1;
|
|
rWrite(0x4015,15);
|
|
rWrite(0x4010,0);
|
|
rWrite(0x4012,0);
|
|
rWrite(0x4013,0);
|
|
rWrite(0x4015,31);
|
|
break;
|
|
case DIV_CMD_SAMPLE_FREQ: {
|
|
bool goingToLoop=parent->getSample(dacSample)->isLoopable();
|
|
if (dpcmMode) {
|
|
nextDPCMFreq=c.value&15;
|
|
rWrite(0x4010,(c.value&15)|(goingToLoop?0x40:0));
|
|
}
|
|
break;
|
|
}
|
|
case DIV_CMD_SAMPLE_BANK:
|
|
sampleBank=c.value;
|
|
if (sampleBank>(parent->song.sample.size()/12)) {
|
|
sampleBank=parent->song.sample.size()/12;
|
|
}
|
|
break;
|
|
case DIV_CMD_SAMPLE_POS:
|
|
if (c.chan!=4) break;
|
|
dacPos=c.value;
|
|
dpcmPos=c.value;
|
|
chan[c.chan].setPos=true;
|
|
if (chan[c.chan].active) {
|
|
chan[c.chan].keyOn=true;
|
|
}
|
|
break;
|
|
case DIV_CMD_LEGATO:
|
|
if (c.chan==3) break;
|
|
if (c.chan==4) {
|
|
chan[c.chan].baseFreq=parent->calcBaseFreq(1,1,c.value+chan[c.chan].sampleNoteDelta+((HACKY_LEGATO_MESS)?(chan[c.chan].std.arp.val):(0)),false);
|
|
} else {
|
|
chan[c.chan].baseFreq=NOTE_PERIODIC(c.value+((HACKY_LEGATO_MESS)?(chan[c.chan].std.arp.val):(0)));
|
|
}
|
|
chan[c.chan].freqChanged=true;
|
|
chan[c.chan].note=c.value;
|
|
break;
|
|
case DIV_CMD_PRE_PORTA:
|
|
if (chan[c.chan].active && c.value2) {
|
|
if (parent->song.resetMacroOnPorta) chan[c.chan].macroInit(parent->getIns(chan[c.chan].ins,DIV_INS_NES));
|
|
}
|
|
if (!chan[c.chan].inPorta && c.value && !parent->song.brokenPortaArp && chan[c.chan].std.arp.will && !NEW_ARP_STRAT) chan[c.chan].baseFreq=NOTE_PERIODIC(chan[c.chan].note);
|
|
chan[c.chan].inPorta=c.value;
|
|
break;
|
|
case DIV_CMD_GET_VOLMAX:
|
|
return 15;
|
|
break;
|
|
case DIV_CMD_MACRO_OFF:
|
|
chan[c.chan].std.mask(c.value,true);
|
|
break;
|
|
case DIV_CMD_MACRO_ON:
|
|
chan[c.chan].std.mask(c.value,false);
|
|
break;
|
|
case DIV_CMD_MACRO_RESTART:
|
|
chan[c.chan].std.restart(c.value);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
void DivPlatformNES::muteChannel(int ch, bool mute) {
|
|
isMuted[ch]=mute;
|
|
if (useNP) {
|
|
if (isE) {
|
|
e1_NP->SetMask(((int)isMuted[0])|(isMuted[1]<<1));
|
|
e2_NP->SetMask(((int)isMuted[2])|(isMuted[3]<<1)|(isMuted[4]<<2));
|
|
} else {
|
|
nes1_NP->SetMask(((int)isMuted[0])|(isMuted[1]<<1));
|
|
nes2_NP->SetMask(((int)isMuted[2])|(isMuted[3]<<1)|(isMuted[4]<<2));
|
|
}
|
|
} else {
|
|
nes->muted[ch]=mute;
|
|
}
|
|
}
|
|
|
|
void DivPlatformNES::forceIns() {
|
|
for (int i=0; i<5; i++) {
|
|
chan[i].insChanged=true;
|
|
chan[i].prevFreq=65535;
|
|
}
|
|
rWrite(0x4001,chan[0].sweep);
|
|
rWrite(0x4005,chan[1].sweep);
|
|
rWrite(0x4017,countMode?0x80:0);
|
|
}
|
|
|
|
void* DivPlatformNES::getChanState(int ch) {
|
|
return &chan[ch];
|
|
}
|
|
|
|
DivMacroInt* DivPlatformNES::getChanMacroInt(int ch) {
|
|
return &chan[ch].std;
|
|
}
|
|
|
|
DivDispatchOscBuffer* DivPlatformNES::getOscBuffer(int ch) {
|
|
return oscBuf[ch];
|
|
}
|
|
|
|
unsigned char* DivPlatformNES::getRegisterPool() {
|
|
return regPool;
|
|
}
|
|
|
|
int DivPlatformNES::getRegisterPoolSize() {
|
|
return 32;
|
|
}
|
|
|
|
float DivPlatformNES::getPostAmp() {
|
|
return 2.0f;
|
|
}
|
|
|
|
void DivPlatformNES::reset() {
|
|
while (!writes.empty()) writes.pop();
|
|
for (int i=0; i<5; i++) {
|
|
chan[i]=DivPlatformNES::Channel();
|
|
chan[i].std.setEngine(parent);
|
|
}
|
|
if (dumpWrites) {
|
|
addWrite(0xffffffff,0);
|
|
}
|
|
|
|
dacPeriod=0;
|
|
dacPos=0;
|
|
dpcmPos=0;
|
|
dacRate=0;
|
|
dacSample=-1;
|
|
sampleBank=0;
|
|
dpcmBank=0;
|
|
dpcmMode=dpcmModeDefault;
|
|
goingToLoop=false;
|
|
countMode=false;
|
|
nextDPCMFreq=-1;
|
|
nextDPCMDelta=-1;
|
|
lastDPCMFreq=15;
|
|
linearCount=255;
|
|
|
|
if (useNP) {
|
|
if (isE) {
|
|
e1_NP->Reset();
|
|
e2_NP->Reset();
|
|
e1_NP->SetMask(((int)isMuted[0])|(isMuted[1]<<1));
|
|
e2_NP->SetMask(((int)isMuted[2])|(isMuted[3]<<1)|(isMuted[4]<<2));
|
|
} else {
|
|
nes1_NP->Reset();
|
|
nes2_NP->Reset();
|
|
nes1_NP->SetMask(((int)isMuted[0])|(isMuted[1]<<1));
|
|
nes2_NP->SetMask(((int)isMuted[2])|(isMuted[3]<<1)|(isMuted[4]<<2));
|
|
}
|
|
} else {
|
|
apu_turn_on(nes,apuType);
|
|
nes->apu.cpu_cycles=0;
|
|
nes->apu.cpu_opcode_cycle=0;
|
|
}
|
|
memset(regPool,0,128);
|
|
|
|
rWrite(0x4015,0x1f);
|
|
rWrite(0x4001,chan[0].sweep);
|
|
rWrite(0x4005,chan[1].sweep);
|
|
|
|
dacAntiClickOn=true;
|
|
dacAntiClick=0;
|
|
}
|
|
|
|
bool DivPlatformNES::keyOffAffectsArp(int ch) {
|
|
return true;
|
|
}
|
|
|
|
void DivPlatformNES::setFlags(const DivConfig& flags) {
|
|
int clockSel=flags.getInt("clockSel",0);
|
|
if (clockSel==2) { // Dendy
|
|
chipClock=COLOR_PAL*2.0/5.0;
|
|
apuType=2;
|
|
} else if (clockSel==1) { // PAL
|
|
chipClock=COLOR_PAL*3.0/8.0;
|
|
apuType=1;
|
|
} else { // NTSC
|
|
chipClock=COLOR_NTSC/2.0;
|
|
apuType=0;
|
|
}
|
|
if (useNP) {
|
|
if (isE) {
|
|
e1_NP->SetClock(rate);
|
|
e1_NP->SetRate(rate);
|
|
e2_NP->SetClock(rate);
|
|
e2_NP->SetRate(rate);
|
|
e2_NP->SetPal(apuType==1);
|
|
} else {
|
|
nes1_NP->SetClock(rate);
|
|
nes1_NP->SetRate(rate);
|
|
nes2_NP->SetClock(rate);
|
|
nes2_NP->SetRate(rate);
|
|
nes2_NP->SetPal(apuType==1);
|
|
}
|
|
} else {
|
|
nes->apu.type=apuType;
|
|
}
|
|
CHECK_CUSTOM_CLOCK;
|
|
rate=chipClock;
|
|
if (useNP) {
|
|
rate/=8;
|
|
}
|
|
for (int i=0; i<5; i++) {
|
|
oscBuf[i]->rate=rate/(useNP?4:32);
|
|
}
|
|
|
|
dpcmModeDefault=flags.getBool("dpcmMode",true);
|
|
}
|
|
|
|
void DivPlatformNES::notifyInsDeletion(void* ins) {
|
|
for (int i=0; i<5; i++) {
|
|
chan[i].std.notifyInsDeletion((DivInstrument*)ins);
|
|
}
|
|
}
|
|
|
|
void DivPlatformNES::poke(unsigned int addr, unsigned short val) {
|
|
rWrite(addr,val);
|
|
}
|
|
|
|
void DivPlatformNES::poke(std::vector<DivRegWrite>& wlist) {
|
|
for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
|
|
}
|
|
|
|
void DivPlatformNES::setNSFPlay(bool use) {
|
|
useNP=use;
|
|
}
|
|
|
|
void DivPlatformNES::set5E01(bool use) {
|
|
isE=use;
|
|
// for now
|
|
if (isE) useNP=true;
|
|
}
|
|
|
|
unsigned char DivPlatformNES::readDMC(unsigned short addr) {
|
|
return dpcmMem[(addr&0x3fff)|((dpcmBank&15)<<14)];
|
|
}
|
|
|
|
const void* DivPlatformNES::getSampleMem(int index) {
|
|
return index==0?dpcmMem:NULL;
|
|
}
|
|
|
|
size_t DivPlatformNES::getSampleMemCapacity(int index) {
|
|
return index==0?262144:0;
|
|
}
|
|
|
|
size_t DivPlatformNES::getSampleMemUsage(int index) {
|
|
return index==0?dpcmMemLen:0;
|
|
}
|
|
|
|
bool DivPlatformNES::isSampleLoaded(int index, int sample) {
|
|
if (index!=0) return false;
|
|
if (sample<0 || sample>255) return false;
|
|
return sampleLoaded[sample];
|
|
}
|
|
|
|
const DivMemoryComposition* DivPlatformNES::getMemCompo(int index) {
|
|
if (index!=0) return NULL;
|
|
return &memCompo;
|
|
}
|
|
|
|
void DivPlatformNES::renderSamples(int sysID) {
|
|
memset(dpcmMem,0,getSampleMemCapacity(0));
|
|
memset(sampleLoaded,0,256*sizeof(bool));
|
|
|
|
memCompo=DivMemoryComposition();
|
|
memCompo.name="DPCM";
|
|
|
|
size_t memPos=0;
|
|
for (int i=0; i<parent->song.sampleLen; i++) {
|
|
DivSample* s=parent->song.sample[i];
|
|
if (!s->renderOn[0][sysID]) {
|
|
sampleOffDPCM[i]=0;
|
|
continue;
|
|
}
|
|
|
|
unsigned int paddedLen=(s->lengthDPCM+63)&(~0x3f);
|
|
logV("%d padded length: %d",i,paddedLen);
|
|
if ((memPos&(~0x3fff))!=((memPos+paddedLen)&(~0x3fff))) {
|
|
memPos=(memPos+0x3fff)&(~0x3fff);
|
|
}
|
|
if (paddedLen>4081) {
|
|
paddedLen=4096;
|
|
}
|
|
if (memPos>=getSampleMemCapacity(0)) {
|
|
logW("out of DPCM memory for sample %d!",i);
|
|
break;
|
|
}
|
|
if (memPos+paddedLen>=getSampleMemCapacity(0)) {
|
|
memcpy(dpcmMem+memPos,s->dataDPCM,getSampleMemCapacity(0)-memPos);
|
|
logW("out of DPCM memory for sample %d!",i);
|
|
} else {
|
|
memcpy(dpcmMem+memPos,s->dataDPCM,MIN(s->lengthDPCM,paddedLen));
|
|
sampleLoaded[i]=true;
|
|
}
|
|
sampleOffDPCM[i]=memPos;
|
|
memCompo.entries.push_back(DivMemoryEntry(DIV_MEMORY_SAMPLE,"Sample",i,memPos,memPos+paddedLen));
|
|
memPos+=paddedLen;
|
|
}
|
|
dpcmMemLen=memPos;
|
|
|
|
memCompo.capacity=262144;
|
|
memCompo.used=dpcmMemLen;
|
|
}
|
|
|
|
int DivPlatformNES::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
|
|
parent=p;
|
|
dumpWrites=false;
|
|
skipRegisterWrites=false;
|
|
if (useNP) {
|
|
if (isE) {
|
|
e1_NP=new xgm::I5E01_APU;
|
|
e1_NP->SetOption(xgm::I5E01_APU::OPT_NONLINEAR_MIXER,1);
|
|
e2_NP=new xgm::I5E01_DMC;
|
|
e2_NP->SetOption(xgm::I5E01_DMC::OPT_NONLINEAR_MIXER,1);
|
|
e2_NP->SetMemory([this](unsigned short addr, unsigned int& data) {
|
|
data=readDMC(addr);
|
|
});
|
|
e2_NP->SetAPU(e1_NP);
|
|
} else {
|
|
nes1_NP=new xgm::NES_APU;
|
|
nes1_NP->SetOption(xgm::NES_APU::OPT_NONLINEAR_MIXER,1);
|
|
nes2_NP=new xgm::NES_DMC;
|
|
nes2_NP->SetOption(xgm::NES_DMC::OPT_NONLINEAR_MIXER,1);
|
|
nes2_NP->SetMemory([this](unsigned short addr, unsigned int& data) {
|
|
data=readDMC(addr);
|
|
});
|
|
nes2_NP->SetAPU(nes1_NP);
|
|
}
|
|
} else {
|
|
nes=new struct NESAPU;
|
|
nes->readDMC=_readDMC;
|
|
nes->readDMCUser=this;
|
|
}
|
|
writeOscBuf=0;
|
|
for (int i=0; i<5; i++) {
|
|
isMuted[i]=false;
|
|
if (!useNP) nes->muted[i]=false;
|
|
oscBuf[i]=new DivDispatchOscBuffer;
|
|
}
|
|
setFlags(flags);
|
|
|
|
dpcmMem=new unsigned char[262144];
|
|
dpcmMemLen=0;
|
|
dpcmBank=0;
|
|
if (dumpWrites) addWrite(0xffff0004,dpcmBank);
|
|
|
|
init_nla_table(500,500);
|
|
reset();
|
|
return 5;
|
|
}
|
|
|
|
void DivPlatformNES::quit() {
|
|
for (int i=0; i<5; i++) {
|
|
delete oscBuf[i];
|
|
}
|
|
if (useNP) {
|
|
if (isE) {
|
|
delete e1_NP;
|
|
delete e2_NP;
|
|
} else {
|
|
delete nes1_NP;
|
|
delete nes2_NP;
|
|
}
|
|
} else {
|
|
delete nes;
|
|
}
|
|
}
|
|
|
|
DivPlatformNES::~DivPlatformNES() {
|
|
}
|