7c42453422
* Rewrite per-system effect handling * fix build * C64: fix fine cutoff regression * fix some more crashes Co-authored-by: tildearrow <tildearrow@protonmail.com>
688 lines
20 KiB
C++
688 lines
20 KiB
C++
/**
|
|
* Furnace Tracker - multi-system chiptune tracker
|
|
* Copyright (C) 2021-2022 tildearrow and contributors
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#include "gb.h"
|
|
#include "../engine.h"
|
|
#include <math.h>
|
|
|
|
#define rWrite(a,v) if (!skipRegisterWrites) {writes.emplace(a,v); regPool[(a)&0x7f]=v; if (dumpWrites) {addWrite(a,v);} }
|
|
#define immWrite(a,v) {writes.emplace(a,v); regPool[(a)&0x7f]=v; if (dumpWrites) {addWrite(a,v);} }
|
|
|
|
#define CHIP_DIVIDER 16
|
|
|
|
const char* regCheatSheetGB[]={
|
|
"NR10_Sweep", "10",
|
|
"NR11_DutyLen", "11",
|
|
"NR12_VolEnv", "12",
|
|
"NR13_FreqL", "13",
|
|
"NR14_FreqH", "14",
|
|
|
|
"NR21_DutyLen", "16",
|
|
"NR22_VolEnv", "17",
|
|
"NR23_FreqL", "18",
|
|
"NR24_FreqH", "19",
|
|
|
|
"NR30_WaveOn", "1A",
|
|
"NR31_Len", "1B",
|
|
"NR32_Vol", "1C",
|
|
"NR33_FreqL", "1D",
|
|
"NR34_FreqH", "1E",
|
|
|
|
"NR41_Len", "20",
|
|
"NR42_VolEnv", "21",
|
|
"NR43_Freq", "22",
|
|
"NR44_Control", "23",
|
|
|
|
"NR50_MasterVol", "24",
|
|
"NR51_Toggle", "25",
|
|
"NR52_PowerStat", "26",
|
|
|
|
"Wave", "30",
|
|
NULL
|
|
};
|
|
|
|
const char** DivPlatformGB::getRegisterSheet() {
|
|
return regCheatSheetGB;
|
|
}
|
|
|
|
void DivPlatformGB::acquire(short* bufL, short* bufR, size_t start, size_t len) {
|
|
for (size_t i=start; i<start+len; i++) {
|
|
if (!writes.empty()) {
|
|
QueuedWrite& w=writes.front();
|
|
GB_apu_write(gb,w.addr,w.val);
|
|
writes.pop();
|
|
}
|
|
|
|
GB_advance_cycles(gb,16);
|
|
bufL[i]=gb->apu_output.final_sample.left;
|
|
bufR[i]=gb->apu_output.final_sample.right;
|
|
|
|
for (int i=0; i<4; i++) {
|
|
oscBuf[i]->data[oscBuf[i]->needle++]=(gb->apu_output.current_sample[i].left+gb->apu_output.current_sample[i].right)<<6;
|
|
}
|
|
}
|
|
}
|
|
|
|
void DivPlatformGB::updateWave() {
|
|
rWrite(0x1a,0);
|
|
for (int i=0; i<16; i++) {
|
|
int nibble1=15-ws.output[((i<<1)+antiClickWavePos-1)&31];
|
|
int nibble2=15-ws.output[((1+(i<<1))+antiClickWavePos-1)&31];
|
|
rWrite(0x30+i,(nibble1<<4)|nibble2);
|
|
}
|
|
antiClickWavePos&=31;
|
|
}
|
|
|
|
static unsigned char chanMuteMask[4]={
|
|
0xee, 0xdd, 0xbb, 0x77
|
|
};
|
|
|
|
unsigned char DivPlatformGB::procMute() {
|
|
return lastPan&(isMuted[0]?chanMuteMask[0]:0xff)
|
|
&(isMuted[1]?chanMuteMask[1]:0xff)
|
|
&(isMuted[2]?chanMuteMask[2]:0xff)
|
|
&(isMuted[3]?chanMuteMask[3]:0xff);
|
|
}
|
|
|
|
static unsigned char gbVolMap[16]={
|
|
0x00, 0x00, 0x00, 0x00,
|
|
0x60, 0x60, 0x60, 0x60,
|
|
0x40, 0x40, 0x40, 0x40,
|
|
0x20, 0x20, 0x20, 0x20
|
|
};
|
|
|
|
static unsigned char noiseTable[256]={
|
|
0,
|
|
0xf7, 0xf6, 0xf5, 0xf4,
|
|
0xe7, 0xe6, 0xe5, 0xe4,
|
|
0xd7, 0xd6, 0xd5, 0xd4,
|
|
0xc7, 0xc6, 0xc5, 0xc4,
|
|
0xb7, 0xb6, 0xb5, 0xb4,
|
|
0xa7, 0xa6, 0xa5, 0xa4,
|
|
0x97, 0x96, 0x95, 0x94,
|
|
0x87, 0x86, 0x85, 0x84,
|
|
0x77, 0x76, 0x75, 0x74,
|
|
0x67, 0x66, 0x65, 0x64,
|
|
0x57, 0x56, 0x55, 0x54,
|
|
0x47, 0x46, 0x45, 0x44,
|
|
0x37, 0x36, 0x35, 0x34,
|
|
0x27, 0x26, 0x25, 0x24,
|
|
0x17, 0x16, 0x15, 0x14,
|
|
0x07, 0x06, 0x05, 0x04,
|
|
0x03, 0x02, 0x01, 0x00,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
|
|
};
|
|
|
|
void DivPlatformGB::tick(bool sysTick) {
|
|
if (antiClickEnabled && sysTick && chan[2].freq>0) {
|
|
antiClickPeriodCount+=((chipClock>>1)/MAX(parent->getCurHz(),1.0f));
|
|
antiClickWavePos+=antiClickPeriodCount/chan[2].freq;
|
|
antiClickPeriodCount%=chan[2].freq;
|
|
}
|
|
|
|
for (int i=0; i<4; i++) {
|
|
chan[i].std.next();
|
|
if (chan[i].softEnv) {
|
|
if (chan[i].std.vol.had) {
|
|
chan[i].outVol=VOL_SCALE_LINEAR(chan[i].vol&15,MIN(15,chan[i].std.vol.val),15);
|
|
if (chan[i].outVol<0) chan[i].outVol=0;
|
|
|
|
if (i==2) {
|
|
rWrite(16+i*5+2,gbVolMap[chan[i].outVol]);
|
|
chan[i].soundLen=64;
|
|
} else {
|
|
chan[i].envLen=0;
|
|
chan[i].envDir=1;
|
|
chan[i].envVol=chan[i].outVol;
|
|
chan[i].soundLen=64;
|
|
|
|
if (!chan[i].keyOn) chan[i].killIt=true;
|
|
}
|
|
}
|
|
}
|
|
if (chan[i].std.arp.had) {
|
|
if (i==3) { // noise
|
|
if (chan[i].std.arp.mode) {
|
|
chan[i].baseFreq=chan[i].std.arp.val+24;
|
|
} else {
|
|
chan[i].baseFreq=chan[i].note+chan[i].std.arp.val;
|
|
}
|
|
if (chan[i].baseFreq>255) chan[i].baseFreq=255;
|
|
if (chan[i].baseFreq<0) chan[i].baseFreq=0;
|
|
} else {
|
|
if (!chan[i].inPorta) {
|
|
if (chan[i].std.arp.mode) {
|
|
chan[i].baseFreq=NOTE_PERIODIC(chan[i].std.arp.val+24);
|
|
} else {
|
|
chan[i].baseFreq=NOTE_PERIODIC(chan[i].note+chan[i].std.arp.val);
|
|
}
|
|
}
|
|
}
|
|
chan[i].freqChanged=true;
|
|
} else {
|
|
if (chan[i].std.arp.mode && chan[i].std.arp.finished) {
|
|
chan[i].baseFreq=NOTE_PERIODIC(chan[i].note);
|
|
chan[i].freqChanged=true;
|
|
}
|
|
}
|
|
if (chan[i].std.duty.had) {
|
|
chan[i].duty=chan[i].std.duty.val;
|
|
if (i!=2) {
|
|
rWrite(16+i*5+1,((chan[i].duty&3)<<6)|(63-(chan[i].soundLen&63)));
|
|
} else if (!chan[i].softEnv) {
|
|
if (parent->song.waveDutyIsVol) {
|
|
rWrite(16+i*5+2,gbVolMap[(chan[i].std.duty.val&3)<<2]);
|
|
}
|
|
}
|
|
}
|
|
if (i==2 && chan[i].std.wave.had) {
|
|
if (chan[i].wave!=chan[i].std.wave.val || ws.activeChanged()) {
|
|
chan[i].wave=chan[i].std.wave.val;
|
|
ws.changeWave1(chan[i].wave);
|
|
if (!chan[i].keyOff) chan[i].keyOn=true;
|
|
}
|
|
}
|
|
if (chan[i].std.panL.had) {
|
|
lastPan&=~(0x11<<i);
|
|
lastPan|=((chan[i].std.panL.val&1)<<i)|((chan[i].std.panL.val&2)<<(i+3));
|
|
rWrite(0x25,procMute());
|
|
}
|
|
if (chan[i].std.pitch.had) {
|
|
if (chan[i].std.pitch.mode) {
|
|
chan[i].pitch2+=chan[i].std.pitch.val;
|
|
CLAMP_VAR(chan[i].pitch2,-32768,32767);
|
|
} else {
|
|
chan[i].pitch2=chan[i].std.pitch.val;
|
|
}
|
|
chan[i].freqChanged=true;
|
|
}
|
|
if (chan[i].std.phaseReset.had) {
|
|
if (chan[i].std.phaseReset.val==1) {
|
|
chan[i].keyOn=true;
|
|
if (i==2) {
|
|
antiClickWavePos=0;
|
|
antiClickPeriodCount=0;
|
|
}
|
|
}
|
|
}
|
|
if (i==2) {
|
|
if (chan[i].active) {
|
|
if (ws.tick()) {
|
|
updateWave();
|
|
if (!chan[i].keyOff) chan[i].keyOn=true;
|
|
}
|
|
}
|
|
}
|
|
// run hardware sequence
|
|
if (chan[i].active) {
|
|
if (--chan[i].hwSeqDelay<=0) {
|
|
chan[i].hwSeqDelay=0;
|
|
DivInstrument* ins=parent->getIns(chan[i].ins,DIV_INS_GB);
|
|
int hwSeqCount=0;
|
|
while (chan[i].hwSeqPos<ins->gb.hwSeqLen && hwSeqCount<4) {
|
|
bool leave=false;
|
|
unsigned short data=ins->gb.hwSeq[chan[i].hwSeqPos].data;
|
|
switch (ins->gb.hwSeq[chan[i].hwSeqPos].cmd) {
|
|
case DivInstrumentGB::DIV_GB_HWCMD_ENVELOPE:
|
|
if (!chan[i].softEnv) {
|
|
chan[i].envLen=data&7;
|
|
chan[i].envDir=(data&8)?1:0;
|
|
chan[i].envVol=(data>>4)&15;
|
|
chan[i].soundLen=data>>8;
|
|
chan[i].keyOn=true;
|
|
}
|
|
break;
|
|
case DivInstrumentGB::DIV_GB_HWCMD_SWEEP:
|
|
chan[i].sweep=data;
|
|
chan[i].sweepChanged=true;
|
|
break;
|
|
case DivInstrumentGB::DIV_GB_HWCMD_WAIT:
|
|
chan[i].hwSeqDelay=data+1;
|
|
leave=true;
|
|
break;
|
|
case DivInstrumentGB::DIV_GB_HWCMD_WAIT_REL:
|
|
if (!chan[i].released) {
|
|
chan[i].hwSeqPos--;
|
|
leave=true;
|
|
}
|
|
break;
|
|
case DivInstrumentGB::DIV_GB_HWCMD_LOOP:
|
|
chan[i].hwSeqPos=data-1;
|
|
break;
|
|
case DivInstrumentGB::DIV_GB_HWCMD_LOOP_REL:
|
|
if (!chan[i].released) {
|
|
chan[i].hwSeqPos=data-1;
|
|
}
|
|
break;
|
|
}
|
|
|
|
chan[i].hwSeqPos++;
|
|
if (leave) break;
|
|
hwSeqCount++;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (chan[i].sweepChanged) {
|
|
chan[i].sweepChanged=false;
|
|
if (i==0) {
|
|
rWrite(16+i*5,chan[i].sweep);
|
|
}
|
|
}
|
|
|
|
if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
|
|
if (i==3) { // noise
|
|
int ntPos=chan[i].baseFreq;
|
|
if (ntPos<0) ntPos=0;
|
|
if (ntPos>255) ntPos=255;
|
|
chan[i].freq=noiseTable[ntPos];
|
|
} else {
|
|
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,true,0,chan[i].pitch2,chipClock,CHIP_DIVIDER);
|
|
if (chan[i].freq>2047) chan[i].freq=2047;
|
|
if (chan[i].freq<0) chan[i].freq=0;
|
|
}
|
|
if (chan[i].keyOn) {
|
|
if (i==2) { // wave
|
|
rWrite(16+i*5,0x80);
|
|
rWrite(16+i*5+2,gbVolMap[chan[i].outVol]);
|
|
} else {
|
|
rWrite(16+i*5+1,((chan[i].duty&3)<<6)|(63-(chan[i].soundLen&63)));
|
|
rWrite(16+i*5+2,((chan[i].envVol<<4))|(chan[i].envLen&7)|((chan[i].envDir&1)<<3));
|
|
chan[i].lastKill=chan[i].envVol;
|
|
}
|
|
}
|
|
if (chan[i].keyOff) {
|
|
if (i==2) {
|
|
rWrite(16+i*5+2,0);
|
|
} else {
|
|
rWrite(16+i*5+2,8);
|
|
}
|
|
}
|
|
if (i==3) { // noise
|
|
rWrite(16+i*5+3,(chan[i].freq&0xff)|(chan[i].duty?8:0));
|
|
rWrite(16+i*5+4,((chan[i].keyOn||chan[i].keyOff)?0x80:0x00)|((chan[i].soundLen<64)<<6));
|
|
} else {
|
|
rWrite(16+i*5+3,(2048-chan[i].freq)&0xff);
|
|
rWrite(16+i*5+4,(((2048-chan[i].freq)>>8)&7)|((chan[i].keyOn||chan[i].keyOff)?0x80:0x00)|((chan[i].soundLen<63)<<6));
|
|
}
|
|
if (chan[i].keyOn) chan[i].keyOn=false;
|
|
if (chan[i].keyOff) chan[i].keyOff=false;
|
|
chan[i].freqChanged=false;
|
|
}
|
|
if (chan[i].killIt) {
|
|
if (i!=2) {
|
|
//rWrite(16+i*5+2,8);
|
|
int killDelta=chan[i].lastKill-chan[i].outVol+1;
|
|
if (killDelta<0) killDelta+=16;
|
|
chan[i].lastKill=chan[i].outVol;
|
|
|
|
if (killDelta!=1) {
|
|
rWrite(16+i*5+2,((chan[i].envVol<<4))|8);
|
|
for (int j=0; j<killDelta; j++) {
|
|
rWrite(16+i*5+2,0x09);
|
|
rWrite(16+i*5+2,0x11);
|
|
rWrite(16+i*5+2,0x08);
|
|
}
|
|
}
|
|
}
|
|
chan[i].killIt=false;
|
|
}
|
|
|
|
chan[i].soManyHacksToMakeItDefleCompatible=false;
|
|
}
|
|
}
|
|
|
|
void DivPlatformGB::muteChannel(int ch, bool mute) {
|
|
isMuted[ch]=mute;
|
|
rWrite(0x25,procMute());
|
|
}
|
|
|
|
int DivPlatformGB::dispatch(DivCommand c) {
|
|
switch (c.cmd) {
|
|
case DIV_CMD_NOTE_ON: {
|
|
DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_GB);
|
|
if (c.value!=DIV_NOTE_NULL) {
|
|
if (c.chan==3) { // noise
|
|
chan[c.chan].baseFreq=c.value;
|
|
} else {
|
|
chan[c.chan].baseFreq=NOTE_PERIODIC(c.value);
|
|
}
|
|
chan[c.chan].freqChanged=true;
|
|
chan[c.chan].note=c.value;
|
|
}
|
|
chan[c.chan].active=true;
|
|
chan[c.chan].keyOn=true;
|
|
chan[c.chan].hwSeqPos=0;
|
|
chan[c.chan].hwSeqDelay=0;
|
|
chan[c.chan].released=false;
|
|
chan[c.chan].softEnv=ins->gb.softEnv;
|
|
chan[c.chan].macroInit(ins);
|
|
if (c.chan==2) {
|
|
if (chan[c.chan].wave<0) {
|
|
chan[c.chan].wave=0;
|
|
ws.changeWave1(chan[c.chan].wave);
|
|
}
|
|
ws.init(ins,32,15,chan[c.chan].insChanged);
|
|
}
|
|
if ((chan[c.chan].insChanged || ins->gb.alwaysInit) && !chan[c.chan].softEnv) {
|
|
if (!chan[c.chan].soManyHacksToMakeItDefleCompatible && c.chan!=2) {
|
|
chan[c.chan].envVol=ins->gb.envVol;
|
|
}
|
|
chan[c.chan].envLen=ins->gb.envLen;
|
|
chan[c.chan].envDir=ins->gb.envDir;
|
|
chan[c.chan].soundLen=ins->gb.soundLen;
|
|
if (!chan[c.chan].soManyHacksToMakeItDefleCompatible && c.chan!=2) {
|
|
chan[c.chan].vol=chan[c.chan].envVol;
|
|
chan[c.chan].outVol=chan[c.chan].envVol;
|
|
}
|
|
}
|
|
if (c.chan==2 && chan[c.chan].softEnv) {
|
|
chan[c.chan].soundLen=64;
|
|
}
|
|
chan[c.chan].insChanged=false;
|
|
break;
|
|
}
|
|
case DIV_CMD_NOTE_OFF:
|
|
chan[c.chan].active=false;
|
|
chan[c.chan].keyOff=true;
|
|
chan[c.chan].hwSeqPos=0;
|
|
chan[c.chan].hwSeqDelay=0;
|
|
chan[c.chan].macroInit(NULL);
|
|
break;
|
|
case DIV_CMD_NOTE_OFF_ENV:
|
|
case DIV_CMD_ENV_RELEASE:
|
|
chan[c.chan].std.release();
|
|
chan[c.chan].released=true;
|
|
break;
|
|
case DIV_CMD_INSTRUMENT:
|
|
if (chan[c.chan].ins!=c.value || c.value2==1) {
|
|
chan[c.chan].ins=c.value;
|
|
chan[c.chan].insChanged=true;
|
|
if (c.chan!=2) {
|
|
DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_GB);
|
|
if (!ins->gb.softEnv) {
|
|
chan[c.chan].envVol=ins->gb.envVol;
|
|
chan[c.chan].envLen=ins->gb.envLen;
|
|
chan[c.chan].envDir=ins->gb.envDir;
|
|
chan[c.chan].soundLen=ins->gb.soundLen;
|
|
chan[c.chan].vol=chan[c.chan].envVol;
|
|
chan[c.chan].outVol=chan[c.chan].vol;
|
|
if (parent->song.gbInsAffectsEnvelope) {
|
|
rWrite(16+c.chan*5+2,((chan[c.chan].vol<<4))|(chan[c.chan].envLen&7)|((chan[c.chan].envDir&1)<<3));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case DIV_CMD_VOLUME:
|
|
chan[c.chan].vol=c.value;
|
|
chan[c.chan].outVol=c.value;
|
|
if (c.chan==2) {
|
|
rWrite(16+c.chan*5+2,gbVolMap[chan[c.chan].outVol]);
|
|
}
|
|
if (!chan[c.chan].softEnv) {
|
|
chan[c.chan].envVol=chan[c.chan].vol;
|
|
chan[c.chan].soManyHacksToMakeItDefleCompatible=true;
|
|
} else if (c.chan!=2) {
|
|
chan[c.chan].envVol=chan[c.chan].vol;
|
|
if (!chan[c.chan].keyOn) chan[c.chan].killIt=true;
|
|
chan[c.chan].freqChanged=true;
|
|
}
|
|
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_WAVE:
|
|
if (c.chan!=2) break;
|
|
chan[c.chan].wave=c.value;
|
|
ws.changeWave1(chan[c.chan].wave);
|
|
chan[c.chan].keyOn=true;
|
|
break;
|
|
case DIV_CMD_NOTE_PORTA: {
|
|
int destFreq=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!=2) {
|
|
chan[c.chan].freqChanged=true;
|
|
rWrite(16+c.chan*5+1,((chan[c.chan].duty&3)<<6)|(63-(parent->getIns(chan[c.chan].ins,DIV_INS_GB)->gb.soundLen&63)));
|
|
}
|
|
break;
|
|
case DIV_CMD_PANNING: {
|
|
lastPan&=~(0x11<<c.chan);
|
|
int pan=0;
|
|
if (c.value>0) pan|=0x10;
|
|
if (c.value2>0) pan|=0x01;
|
|
if (pan==0) pan=0x11;
|
|
lastPan|=pan<<c.chan;
|
|
rWrite(0x25,procMute());
|
|
break;
|
|
}
|
|
case DIV_CMD_LEGATO:
|
|
if (c.chan==3) break;
|
|
chan[c.chan].baseFreq=NOTE_PERIODIC(c.value+((chan[c.chan].std.arp.will && !chan[c.chan].std.arp.mode)?(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_GB));
|
|
}
|
|
if (!chan[c.chan].inPorta && c.value && !parent->song.brokenPortaArp && chan[c.chan].std.arp.will) chan[c.chan].baseFreq=NOTE_PERIODIC(chan[c.chan].note);
|
|
chan[c.chan].inPorta=c.value;
|
|
break;
|
|
case DIV_CMD_GB_SWEEP_DIR:
|
|
if (c.chan>0) break;
|
|
chan[c.chan].sweep&=0xf7;
|
|
if (c.value&1) {
|
|
chan[c.chan].sweep|=8;
|
|
}
|
|
chan[c.chan].sweepChanged=true;
|
|
break;
|
|
case DIV_CMD_GB_SWEEP_TIME:
|
|
if (c.chan>0) break;
|
|
chan[c.chan].sweep&=8;
|
|
chan[c.chan].sweep|=c.value&0x77;
|
|
chan[c.chan].sweepChanged=true;
|
|
break;
|
|
case DIV_CMD_GET_VOLMAX:
|
|
return 15;
|
|
break;
|
|
case DIV_ALWAYS_SET_VOLUME:
|
|
return 1;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
void DivPlatformGB::forceIns() {
|
|
for (int i=0; i<4; i++) {
|
|
chan[i].insChanged=true;
|
|
}
|
|
immWrite(0x25,procMute());
|
|
updateWave();
|
|
}
|
|
|
|
void* DivPlatformGB::getChanState(int ch) {
|
|
return &chan[ch];
|
|
}
|
|
|
|
DivMacroInt* DivPlatformGB::getChanMacroInt(int ch) {
|
|
return &chan[ch].std;
|
|
}
|
|
|
|
DivDispatchOscBuffer* DivPlatformGB::getOscBuffer(int ch) {
|
|
return oscBuf[ch];
|
|
}
|
|
|
|
unsigned char* DivPlatformGB::getRegisterPool() {
|
|
return regPool;
|
|
}
|
|
|
|
int DivPlatformGB::getRegisterPoolSize() {
|
|
return 64;
|
|
}
|
|
|
|
void DivPlatformGB::reset() {
|
|
for (int i=0; i<4; i++) {
|
|
chan[i]=DivPlatformGB::Channel();
|
|
chan[i].std.setEngine(parent);
|
|
}
|
|
ws.setEngine(parent);
|
|
ws.init(NULL,32,15,false);
|
|
if (dumpWrites) {
|
|
addWrite(0xffffffff,0);
|
|
}
|
|
memset(gb,0,sizeof(GB_gameboy_t));
|
|
memset(regPool,0,128);
|
|
gb->model=model;
|
|
GB_apu_init(gb);
|
|
GB_set_sample_rate(gb,rate);
|
|
// enable all channels
|
|
immWrite(0x10,0);
|
|
immWrite(0x26,0x8f);
|
|
lastPan=0xff;
|
|
immWrite(0x25,procMute());
|
|
immWrite(0x24,0x77);
|
|
|
|
antiClickPeriodCount=0;
|
|
antiClickWavePos=0;
|
|
}
|
|
|
|
int DivPlatformGB::getPortaFloor(int ch) {
|
|
return 24;
|
|
}
|
|
|
|
bool DivPlatformGB::isStereo() {
|
|
return true;
|
|
}
|
|
|
|
bool DivPlatformGB::getDCOffRequired() {
|
|
return (model==GB_MODEL_AGB);
|
|
}
|
|
|
|
void DivPlatformGB::notifyInsChange(int ins) {
|
|
for (int i=0; i<4; i++) {
|
|
if (chan[i].ins==ins) {
|
|
chan[i].insChanged=true;
|
|
}
|
|
}
|
|
}
|
|
|
|
void DivPlatformGB::notifyWaveChange(int wave) {
|
|
if (chan[2].wave==wave) {
|
|
ws.changeWave1(wave);
|
|
updateWave();
|
|
if (!chan[2].keyOff && chan[2].active) chan[2].keyOn=true;
|
|
}
|
|
}
|
|
|
|
void DivPlatformGB::notifyInsDeletion(void* ins) {
|
|
for (int i=0; i<4; i++) {
|
|
chan[i].std.notifyInsDeletion((DivInstrument*)ins);
|
|
}
|
|
}
|
|
|
|
void DivPlatformGB::poke(unsigned int addr, unsigned short val) {
|
|
immWrite(addr,val);
|
|
}
|
|
|
|
void DivPlatformGB::poke(std::vector<DivRegWrite>& wlist) {
|
|
for (DivRegWrite& i: wlist) immWrite(i.addr,i.val);
|
|
}
|
|
|
|
void DivPlatformGB::setFlags(unsigned int flags) {
|
|
antiClickEnabled=!(flags&8);
|
|
switch (flags&3) {
|
|
case 0:
|
|
model=GB_MODEL_DMG_B;
|
|
break;
|
|
case 1:
|
|
model=GB_MODEL_CGB_C;
|
|
break;
|
|
case 2:
|
|
model=GB_MODEL_CGB_E;
|
|
break;
|
|
case 3:
|
|
model=GB_MODEL_AGB;
|
|
break;
|
|
}
|
|
}
|
|
|
|
int DivPlatformGB::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
|
|
chipClock=4194304;
|
|
rate=chipClock/16;
|
|
for (int i=0; i<4; i++) {
|
|
isMuted[i]=false;
|
|
oscBuf[i]=new DivDispatchOscBuffer;
|
|
oscBuf[i]->rate=rate;
|
|
}
|
|
parent=p;
|
|
dumpWrites=false;
|
|
skipRegisterWrites=false;
|
|
model=GB_MODEL_DMG_B;
|
|
gb=new GB_gameboy_t;
|
|
setFlags(flags);
|
|
reset();
|
|
return 4;
|
|
}
|
|
|
|
void DivPlatformGB::quit() {
|
|
for (int i=0; i<4; i++) {
|
|
delete oscBuf[i];
|
|
}
|
|
delete gb;
|
|
}
|
|
|
|
DivPlatformGB::~DivPlatformGB() {
|
|
}
|