456 lines
13 KiB
C++
456 lines
13 KiB
C++
/**
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* Furnace Tracker - multi-system chiptune tracker
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* Copyright (C) 2021-2022 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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#define _USE_MATH_DEFINES
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#include "msm5232.h"
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#include "../engine.h"
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#include <math.h>
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//#define rWrite(a,v) pendingWrites[a]=v;
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#define rWrite(a,v) if (!skipRegisterWrites) {writes.emplace(a,v); if (dumpWrites) {addWrite(a,v);} }
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#define NOTE_LINEAR(x) ((x)<<7)
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const char* regCheatSheetMSM5232[]={
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"Select", "0",
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"MasterVol", "1",
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"FreqL", "2",
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"FreqH", "3",
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"DataCtl", "4",
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"ChanVol", "5",
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"WaveCtl", "6",
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"NoiseCtl", "7",
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"LFOFreq", "8",
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"LFOCtl", "9",
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NULL
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};
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const char** DivPlatformMSM5232::getRegisterSheet() {
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return regCheatSheetMSM5232;
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}
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void DivPlatformMSM5232::acquire(short* bufL, short* bufR, size_t start, size_t len) {
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for (size_t h=start; h<start+len; h++) {
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while (!writes.empty()) {
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QueuedWrite w=writes.front();
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msm->write(w.addr,w.val);
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regPool[w.addr&0x0f]=w.val;
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writes.pop();
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}
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for (int i=0; i<8; i++) {
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int o=(
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((regPool[12+(i>>4)]&1)?((msm->vo16[i]*partVolume[3+(i&4)])>>8):0)+
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((regPool[12+(i>>4)]&2)?((msm->vo8[i]*partVolume[2+(i&4)])>>8):0)+
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((regPool[12+(i>>4)]&4)?((msm->vo4[i]*partVolume[1+(i&4)])>>8):0)+
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((regPool[12+(i>>4)]&8)?((msm->vo2[i]*partVolume[i&4])>>8):0)
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)<<3;
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oscBuf[i]->data[oscBuf[i]->needle++]=CLAMP(o,-32768,32767);
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}
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clockDriftLFOPos+=clockDriftLFOSpeed;
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clockDriftLFOPos&=(1U<<21)-1;
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clockDriftAccum+=clockDriftLFOWave[clockDriftLFOPos>>13];
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if (clockDriftAccum>=2048) {
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clockDriftAccum-=2048;
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} else {
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memset(temp,0,16*sizeof(short));
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msm->sound_stream_update(temp);
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}
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//printf("tempL: %d tempR: %d\n",tempL,tempR);
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bufL[h]=0;
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for (int i=0; i<8; i++) {
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bufL[h]+=(temp[i]*partVolume[i])>>8;
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}
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}
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}
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const int attackMap[8]={
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0, 1, 2, 3, 4, 5, 5, 5
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};
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const int decayMap[16]={
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0, 1, 2, 3, 8, 9, 4, 10, 5, 11, 12, 13, 13, 13, 13, 13
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};
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void DivPlatformMSM5232::tick(bool sysTick) {
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for (int i=0; i<8; i++) {
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chan[i].std.next();
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if (chan[i].std.vol.had) {
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chan[i].outVol=VOL_SCALE_LINEAR(chan[i].vol&127,MIN(127,chan[i].std.vol.val),127);
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}
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if (chan[i].std.arp.had) {
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if (!chan[i].inPorta) {
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chan[i].baseFreq=NOTE_LINEAR(parent->calcArp(chan[i].note,chan[i].std.arp.val));
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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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groupControl[i>>2]=(chan[i].std.duty.val&0x1f)|(groupEnv[i>>2]?0x20:0);
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updateGroup[i>>2]=true;
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}
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if (chan[i].std.ex1.had) { // attack
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groupAR[i>>2]=attackMap[chan[i].std.ex1.val&7];
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updateGroupAR[i>>2]=true;
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}
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if (chan[i].std.ex2.had) { // decay
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groupDR[i>>2]=decayMap[chan[i].std.ex2.val&15];
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updateGroupDR[i>>2]=true;
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}
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if (chan[i].std.ex3.had) { // noise
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chan[i].noise=chan[i].std.ex3.val;
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chan[i].freqChanged=true;
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}
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}
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for (int i=0; i<2; i++) {
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if (updateGroup[i]) {
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rWrite(12+i,groupControl[i]);
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updateGroup[i]=false;
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}
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if (updateGroupAR[i]) {
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rWrite(8+i,groupAR[i]);
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updateGroupAR[i]=false;
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}
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if (updateGroupDR[i]) {
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rWrite(10+i,groupDR[i]);
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updateGroupDR[i]=false;
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}
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}
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for (int i=0; i<8; i++) {
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if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
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//DivInstrument* ins=parent->getIns(chan[i].ins,DIV_INS_PCE);
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chan[i].freq=chan[i].baseFreq+chan[i].pitch+chan[i].pitch2-(12<<7);
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if (chan[i].freq<0) chan[i].freq=0;
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if (chan[i].freq>0x2aff) chan[i].freq=0x2aff;
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if (chan[i].keyOn) {
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//rWrite(16+i*5,0x80);
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//chWrite(i,0x04,0x80|chan[i].vol);
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}
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if (chan[i].active) {
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rWrite(i,chan[i].noise?0xd8:(0x80|(chan[i].freq>>7)));
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}
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if (chan[i].keyOff) {
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rWrite(i,0);
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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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msm->set_vol_input(
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chan[0].active?((double)chan[0].outVol/127.0):0.0,
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chan[1].active?((double)chan[1].outVol/127.0):0.0,
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chan[2].active?((double)chan[2].outVol/127.0):0.0,
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chan[3].active?((double)chan[3].outVol/127.0):0.0,
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chan[4].active?((double)chan[4].outVol/127.0):0.0,
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chan[5].active?((double)chan[5].outVol/127.0):0.0,
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chan[6].active?((double)chan[6].outVol/127.0):0.0,
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chan[7].active?((double)chan[7].outVol/127.0):0.0
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);
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}
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int DivPlatformMSM5232::dispatch(DivCommand c) {
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switch (c.cmd) {
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case DIV_CMD_NOTE_ON: {
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DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_PCE);
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if (c.value!=DIV_NOTE_NULL) {
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chan[c.chan].baseFreq=NOTE_LINEAR(c.value);
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chan[c.chan].freqChanged=true;
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chan[c.chan].note=c.value;
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}
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chan[c.chan].active=true;
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chan[c.chan].keyOn=true;
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chan[c.chan].macroInit(ins);
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if (!parent->song.brokenOutVol && !chan[c.chan].std.vol.will) {
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chan[c.chan].outVol=chan[c.chan].vol;
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}
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chan[c.chan].insChanged=false;
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break;
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}
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case DIV_CMD_NOTE_OFF:
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chan[c.chan].active=false;
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chan[c.chan].keyOff=true;
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chan[c.chan].macroInit(NULL);
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break;
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case DIV_CMD_NOTE_OFF_ENV:
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case DIV_CMD_ENV_RELEASE:
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chan[c.chan].std.release();
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break;
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case DIV_CMD_INSTRUMENT:
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if (chan[c.chan].ins!=c.value || c.value2==1) {
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chan[c.chan].ins=c.value;
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chan[c.chan].insChanged=true;
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}
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break;
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case DIV_CMD_VOLUME:
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if (chan[c.chan].vol!=c.value) {
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chan[c.chan].vol=c.value;
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if (!chan[c.chan].std.vol.has) {
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chan[c.chan].outVol=c.value;
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}
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}
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break;
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case DIV_CMD_GET_VOLUME:
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if (chan[c.chan].std.vol.has) {
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return chan[c.chan].vol;
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}
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return chan[c.chan].outVol;
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break;
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case DIV_CMD_PITCH:
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chan[c.chan].pitch=c.value;
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chan[c.chan].freqChanged=true;
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break;
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case DIV_CMD_NOTE_PORTA: {
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int destFreq=NOTE_LINEAR(c.value2);
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bool return2=false;
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if (destFreq>chan[c.chan].baseFreq) {
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chan[c.chan].baseFreq+=c.value*parent->song.pitchSlideSpeed;
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if (chan[c.chan].baseFreq>=destFreq) {
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chan[c.chan].baseFreq=destFreq;
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return2=true;
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}
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} else {
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chan[c.chan].baseFreq-=c.value*parent->song.pitchSlideSpeed;
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if (chan[c.chan].baseFreq<=destFreq) {
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chan[c.chan].baseFreq=destFreq;
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return2=true;
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}
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}
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chan[c.chan].freqChanged=true;
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if (return2) {
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chan[c.chan].inPorta=false;
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return 2;
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}
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break;
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}
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case DIV_CMD_WAVE:
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groupControl[c.chan>>2]=c.value&0x1f;
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updateGroup[c.chan>>2]=true;
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break;
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case DIV_CMD_STD_NOISE_MODE:
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chan[c.chan].noise=c.value;
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chan[c.chan].freqChanged=true;
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break;
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case DIV_CMD_FM_AR:
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groupAR[c.chan>>2]=attackMap[c.value&7];
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updateGroupAR[c.chan>>2]=true;
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break;
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case DIV_CMD_FM_DR:
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groupDR[c.chan>>2]=decayMap[c.value&15];
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updateGroupDR[c.chan>>2]=true;
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break;
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case DIV_CMD_LEGATO:
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chan[c.chan].baseFreq=NOTE_LINEAR(c.value+((chan[c.chan].std.arp.will && !chan[c.chan].std.arp.mode)?(chan[c.chan].std.arp.val):(0)));
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chan[c.chan].freqChanged=true;
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chan[c.chan].note=c.value;
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break;
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case DIV_CMD_PRE_PORTA:
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if (chan[c.chan].active && c.value2) {
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if (parent->song.resetMacroOnPorta) chan[c.chan].macroInit(parent->getIns(chan[c.chan].ins,DIV_INS_PCE));
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}
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if (!chan[c.chan].inPorta && c.value && !parent->song.brokenPortaArp && chan[c.chan].std.arp.will) chan[c.chan].baseFreq=NOTE_LINEAR(chan[c.chan].note);
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chan[c.chan].inPorta=c.value;
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break;
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case DIV_CMD_GET_VOLMAX:
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return 127;
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break;
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case DIV_ALWAYS_SET_VOLUME:
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return 1;
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break;
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default:
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break;
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}
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return 1;
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}
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void DivPlatformMSM5232::muteChannel(int ch, bool mute) {
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isMuted[ch]=mute;
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msm->mute(ch,mute);
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}
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void DivPlatformMSM5232::forceIns() {
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for (int i=0; i<8; i++) {
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chan[i].insChanged=true;
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chan[i].freqChanged=true;
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}
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for (int i=0; i<2; i++) {
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updateGroup[i]=true;
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updateGroupAR[i]=true;
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updateGroupDR[i]=true;
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}
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}
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void* DivPlatformMSM5232::getChanState(int ch) {
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return &chan[ch];
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}
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DivMacroInt* DivPlatformMSM5232::getChanMacroInt(int ch) {
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return &chan[ch].std;
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}
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DivDispatchOscBuffer* DivPlatformMSM5232::getOscBuffer(int ch) {
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return oscBuf[ch];
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}
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unsigned char* DivPlatformMSM5232::getRegisterPool() {
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return regPool;
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}
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int DivPlatformMSM5232::getRegisterPoolSize() {
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return 14;
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}
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void DivPlatformMSM5232::reset() {
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while (!writes.empty()) writes.pop();
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memset(regPool,0,128);
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for (int i=0; i<8; i++) {
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chan[i]=DivPlatformMSM5232::Channel();
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chan[i].std.setEngine(parent);
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}
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if (dumpWrites) {
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addWrite(0xffffffff,0);
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}
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msm->device_start();
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msm->device_reset();
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memset(temp,0,16*sizeof(short));
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cycles=0;
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curChan=-1;
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delay=500;
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clockDriftLFOPos=0;
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clockDriftAccum=0;
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for (int i=0; i<2; i++) {
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groupControl[i]=15|(groupEnv[i]?0x20:0);
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groupAR[i]=0;
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groupDR[i]=5;
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updateGroup[i]=true;
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updateGroupAR[i]=true;
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updateGroupDR[i]=true;
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}
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for (int i=0; i<8; i++) {
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rWrite(i,0);
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partVolume[i]=initPartVolume[i];
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msm->mute(i,isMuted[i]);
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}
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}
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bool DivPlatformMSM5232::isStereo() {
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return false;
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}
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bool DivPlatformMSM5232::keyOffAffectsArp(int ch) {
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return true;
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}
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void DivPlatformMSM5232::notifyInsDeletion(void* ins) {
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for (int i=0; i<8; i++) {
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chan[i].std.notifyInsDeletion((DivInstrument*)ins);
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}
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}
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void DivPlatformMSM5232::setFlags(const DivConfig& flags) {
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chipClock=2119040;
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CHECK_CUSTOM_CLOCK;
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detune=flags.getInt("detune",0);
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msm->set_clock(chipClock+detune*1024);
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rate=msm->get_rate();
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for (int i=0; i<8; i++) {
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oscBuf[i]->rate=rate;
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}
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initPartVolume[0]=flags.getInt("partVolume0",255);
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initPartVolume[1]=flags.getInt("partVolume1",255);
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initPartVolume[2]=flags.getInt("partVolume2",255);
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initPartVolume[3]=flags.getInt("partVolume3",255);
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initPartVolume[4]=flags.getInt("partVolume4",255);
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initPartVolume[5]=flags.getInt("partVolume5",255);
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initPartVolume[6]=flags.getInt("partVolume6",255);
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initPartVolume[7]=flags.getInt("partVolume7",255);
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capacitance[0]=flags.getFloat("capValue0",390.0f);
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capacitance[1]=flags.getFloat("capValue1",390.0f);
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capacitance[2]=flags.getFloat("capValue2",390.0f);
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capacitance[3]=flags.getFloat("capValue3",390.0f);
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capacitance[4]=flags.getFloat("capValue4",390.0f);
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capacitance[5]=flags.getFloat("capValue5",390.0f);
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capacitance[6]=flags.getFloat("capValue6",390.0f);
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capacitance[7]=flags.getFloat("capValue7",390.0f);
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groupEnv[0]=flags.getBool("groupEnv0",true);
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groupEnv[1]=flags.getBool("groupEnv1",true);
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msm->set_capacitors(
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capacitance[0]*0.000000001,
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capacitance[1]*0.000000001,
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capacitance[2]*0.000000001,
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capacitance[3]*0.000000001,
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capacitance[4]*0.000000001,
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capacitance[5]*0.000000001,
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capacitance[6]*0.000000001,
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capacitance[7]*0.000000001
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);
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for (int i=0; i<256; i++) {
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clockDriftLFOWave[i]=(1.0+sin(M_PI*(double)i/128.0))*flags.getInt("vibDepth",0.0f);
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}
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clockDriftLFOSpeed=flags.getInt("vibSpeed",0);
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}
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void DivPlatformMSM5232::poke(unsigned int addr, unsigned short val) {
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rWrite(addr,val);
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}
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void DivPlatformMSM5232::poke(std::vector<DivRegWrite>& wlist) {
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for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
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}
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int DivPlatformMSM5232::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
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parent=p;
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dumpWrites=false;
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skipRegisterWrites=false;
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for (int i=0; i<8; i++) {
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isMuted[i]=false;
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oscBuf[i]=new DivDispatchOscBuffer;
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}
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msm=new msm5232_device(2119040);
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msm->device_start();
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setFlags(flags);
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reset();
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return 8;
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}
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void DivPlatformMSM5232::quit() {
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for (int i=0; i<8; i++) {
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delete oscBuf[i];
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}
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if (msm!=NULL) {
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msm->device_stop();
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delete msm;
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msm=NULL;
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}
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}
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DivPlatformMSM5232::~DivPlatformMSM5232() {
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}
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