359 lines
9.7 KiB
C++
359 lines
9.7 KiB
C++
/**
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* Furnace Tracker - multi-system chiptune tracker
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* Copyright (C) 2021-2023 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 "ted.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.push(QueuedWrite(a,v)); if (dumpWrites) {addWrite(a,v);} }
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#define CHIP_DIVIDER 8
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const char* regCheatSheetTED[]={
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"Freq0L", "0e",
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"Freq1L", "0f",
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"Freq1H", "10",
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"Control", "11",
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"Freq0H", "12",
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NULL
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};
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const char** DivPlatformTED::getRegisterSheet() {
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return regCheatSheetTED;
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}
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void DivPlatformTED::acquire(short** buf, size_t len) {
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for (size_t h=0; h<len; h++) {
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while (!writes.empty()) {
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QueuedWrite w=writes.front();
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ted_sound_machine_store(&ted,w.addr,w.val);
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regPool[(w.addr-0x0e)&7]=w.val;
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writes.pop();
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}
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ted_sound_machine_calculate_samples(&ted,&buf[0][h],1,1);
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oscBuf[0]->data[oscBuf[0]->needle++]=(ted.voice0_output_enabled && ted.voice0_sign)?(ted.volume<<1):0;
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oscBuf[1]->data[oscBuf[1]->needle++]=(ted.voice1_output_enabled && ((ted.noise && (!(ted.noise_shift_register&1))) || (!ted.noise && ted.voice1_sign)))?(ted.volume<<1):0;
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}
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}
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void DivPlatformTED::tick(bool sysTick) {
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bool resetPhase=false;
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for (int _i=0; _i<2; _i++) {
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int i=chanOrder[_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,MIN(8,chan[i].std.vol.val),8);
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updateCtrl=true;
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vol=chan[i].outVol;
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}
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if (chan[i].std.duty.had) {
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chan[i].noise=chan[i].std.duty.val&2;
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chan[i].square=chan[i].std.duty.val&1;
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chan[i].freqChanged=true;
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updateCtrl=true;
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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 (!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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chan[i].freqChanged=true;
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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].freqChanged || chan[i].keyOn || chan[i].keyOff) {
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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 (i==1 && chan[i].noise && !chan[i].square) chan[i].freq>>=4;
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if (chan[i].freq<0) chan[i].freq=0;
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if (chan[i].freq>1023) chan[i].freq=1023;
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if (i==1) {
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rWrite(0x0f,(1022-chan[i].freq)&0xff);
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rWrite(0x10,((1022-chan[i].freq)>>8)&0xff);
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} else {
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rWrite(0x0e,(1022-chan[i].freq)&0xff);
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rWrite(0x12,((1022-chan[i].freq)>>8)&0xff);
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}
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if (chan[i].keyOn) {
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updateCtrl=true;
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}
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if (chan[i].keyOff) {
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updateCtrl=true;
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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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if (chan[i].std.phaseReset.had && chan[i].std.phaseReset.val==1) {
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resetPhase=true;
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updateCtrl=true;
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}
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}
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if (resetPhase) {
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rWrite(0x11,0x80);
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}
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if (updateCtrl) {
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updateCtrl=false;
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rWrite(0x11,(vol&15)|((chan[0].active && chan[0].square && !isMuted[0])?0x10:0)|((chan[1].active && chan[1].square && !isMuted[1])?0x20:0)|((chan[1].active && chan[1].noise && !isMuted[1])?0x40:0));
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}
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}
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int DivPlatformTED::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_TED);
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if (c.value!=DIV_NOTE_NULL) {
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chan[c.chan].baseFreq=NOTE_PERIODIC(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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if (keyPriority) {
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if (chanOrder[0]==c.chan) {
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chanOrder[0]=chanOrder[1];
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chanOrder[1]=c.chan;
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}
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}
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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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vol=chan[c.chan].outVol;
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updateCtrl=true;
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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_PERIODIC(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;
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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;
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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_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_LEGATO:
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chan[c.chan].baseFreq=NOTE_PERIODIC(c.value+((HACKY_LEGATO_MESS)?(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_TED));
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}
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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);
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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 8;
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break;
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case DIV_CMD_MACRO_OFF:
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chan[c.chan].std.mask(c.value,true);
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break;
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case DIV_CMD_MACRO_ON:
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chan[c.chan].std.mask(c.value,false);
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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 DivPlatformTED::muteChannel(int ch, bool mute) {
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isMuted[ch]=mute;
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updateCtrl=true;
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}
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void DivPlatformTED::forceIns() {
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for (int i=0; i<2; i++) {
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chan[i].freqChanged=true;
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}
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updateCtrl=true;
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}
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bool DivPlatformTED::isVolGlobal() {
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return true;
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}
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void* DivPlatformTED::getChanState(int ch) {
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return &chan[ch];
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}
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DivMacroInt* DivPlatformTED::getChanMacroInt(int ch) {
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return &chan[ch].std;
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}
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DivDispatchOscBuffer* DivPlatformTED::getOscBuffer(int ch) {
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return oscBuf[ch];
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}
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unsigned char* DivPlatformTED::getRegisterPool() {
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return regPool;
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}
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int DivPlatformTED::getRegisterPoolSize() {
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return 5;
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}
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void DivPlatformTED::reset() {
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writes.clear();
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memset(regPool,0,8);
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for (int i=0; i<2; i++) {
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chan[i]=DivPlatformTED::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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ted_sound_machine_init(&ted,1,8);
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updateCtrl=true;
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vol=15;
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chanOrder[0]=0;
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chanOrder[1]=1;
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}
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int DivPlatformTED::getOutputCount() {
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return 1;
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}
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bool DivPlatformTED::keyOffAffectsArp(int ch) {
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return true;
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}
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void DivPlatformTED::notifyInsDeletion(void* ins) {
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for (int i=0; i<2; i++) {
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chan[i].std.notifyInsDeletion((DivInstrument*)ins);
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}
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}
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void DivPlatformTED::setFlags(const DivConfig& flags) {
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if (flags.getInt("clockSel",0)) {
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chipClock=COLOR_PAL*2.0/5.0;
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} else {
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chipClock=COLOR_NTSC/2.0;
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}
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CHECK_CUSTOM_CLOCK;
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rate=chipClock/8;
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for (int i=0; i<2; i++) {
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oscBuf[i]->rate=rate;
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}
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keyPriority=flags.getBool("keyPriority",true);
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}
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void DivPlatformTED::poke(unsigned int addr, unsigned short val) {
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rWrite(addr,val);
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}
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void DivPlatformTED::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 DivPlatformTED::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<2; i++) {
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isMuted[i]=false;
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oscBuf[i]=new DivDispatchOscBuffer;
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}
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setFlags(flags);
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reset();
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return 2;
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}
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void DivPlatformTED::quit() {
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for (int i=0; i<2; i++) {
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delete oscBuf[i];
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}
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}
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DivPlatformTED::~DivPlatformTED() {
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}
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