T 6 W 2 8

This commit is contained in:
tildearrow 2022-10-12 00:12:56 -05:00
parent e02c30c1ce
commit f8896ed64c
6 changed files with 460 additions and 1 deletions

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@ -508,6 +508,7 @@ src/engine/platform/x1_010.cpp
src/engine/platform/lynx.cpp
src/engine/platform/su.cpp
src/engine/platform/swan.cpp
src/engine/platform/t6w28.cpp
src/engine/platform/vb.cpp
src/engine/platform/vera.cpp
src/engine/platform/zxbeeper.cpp

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@ -32,6 +32,7 @@
#include "platform/nes.h"
#include "platform/c64.h"
#include "platform/arcade.h"
#include "platform/t6w28.h"
#include "platform/tx81z.h"
#include "platform/ym2203.h"
#include "platform/ym2203ext.h"
@ -343,6 +344,9 @@ void DivDispatchContainer::init(DivSystem sys, DivEngine* eng, int chanCount, do
case DIV_SYSTEM_SWAN:
dispatch=new DivPlatformSwan;
break;
case DIV_SYSTEM_T6W28:
dispatch=new DivPlatformT6W28;
break;
case DIV_SYSTEM_VBOY:
dispatch=new DivPlatformVB;
break;

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@ -5,7 +5,7 @@
#include <assert.h>
#undef require
#define require( expr ) assert( expr )
#define require( expr ) if (! (expr) ) return;
/* Copyright (C) 2003-2006 Shay Green. This module is free software; you
can redistribute it and/or modify it under the terms of the GNU Lesser

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@ -0,0 +1,350 @@
/**
* 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 "t6w28.h"
#include "../engine.h"
#include "sound/t6w28/T6W28_Apu.h"
#include <math.h>
//#define rWrite(a,v) pendingWrites[a]=v;
#define rWrite(a,v) if (!skipRegisterWrites) {writes.emplace(a,v); if (dumpWrites) {addWrite(a,v);} }
#define CHIP_DIVIDER 64
const char* regCheatSheetT6W28[]={
"Data0", "0",
"Data1", "1",
NULL
};
const char** DivPlatformT6W28::getRegisterSheet() {
return regCheatSheetT6W28;
}
void DivPlatformT6W28::acquire(short* bufL, short* bufR, size_t start, size_t len) {
for (size_t h=start; h<start+len; h++) {
cycles=0;
while (!writes.empty() && cycles<16) {
QueuedWrite w=writes.front();
if (w.addr) {
t6w->write_data_right(cycles,w.val);
} else {
t6w->write_data_left(cycles,w.val);
}
regPool[w.addr&1]=w.val;
//cycles+=2;
writes.pop();
}
t6w->end_frame(16);
tempL=0;
tempR=0;
for (int i=0; i<4; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=(out[i][1].curValue+out[i][2].curValue)<<6;
tempL+=out[i][1].curValue<<7;
tempR+=out[i][2].curValue<<7;
}
if (tempL<-32768) tempL=-32768;
if (tempL>32767) tempL=32767;
if (tempR<-32768) tempR=-32768;
if (tempR>32767) tempR=32767;
bufL[h]=tempL;
bufR[h]=tempR;
}
}
void DivPlatformT6W28::writeOutVol(int ch) {
rWrite(1,0x90|(ch<<5)|(isMuted[ch]?15:(15-(chan[ch].outVol&15))));
rWrite(0,0x90|(ch<<5)|(isMuted[ch]?15:(15-(chan[ch].outVol&15))));
}
void DivPlatformT6W28::tick(bool sysTick) {
for (int i=0; i<4; i++) {
chan[i].std.next();
if (chan[i].std.vol.had) {
chan[i].outVol=VOL_SCALE_LOG(chan[i].vol&15,MIN(15,chan[i].std.vol.val),15);
}
if (chan[i].std.arp.had) {
if (!chan[i].inPorta) {
int noiseSeek=parent->calcArp(chan[i].note,chan[i].std.arp.val);
chan[i].baseFreq=NOTE_PERIODIC(noiseSeek);
}
chan[i].freqChanged=true;
}
if (chan[i].std.panL.had) {
chan[i].pan&=0x0f;
chan[i].pan|=(chan[i].std.panL.val&15)<<4;
}
if (chan[i].std.panR.had) {
chan[i].pan&=0xf0;
chan[i].pan|=chan[i].std.panR.val&15;
}
if (chan[i].std.vol.had || chan[i].std.panL.had || chan[i].std.panR.had) {
writeOutVol(i);
}
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].freqChanged || chan[i].keyOn || chan[i].keyOff) {
//DivInstrument* ins=parent->getIns(chan[i].ins,DIV_INS_PCE);
chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,true,0,chan[i].pitch2,chipClock,CHIP_DIVIDER);
if (chan[i].freq>1023) chan[i].freq=1023;
rWrite(0,0x80|i<<5|(chan[i].freq&15));
rWrite(0,chan[i].freq>>4);
if (chan[i].keyOn) chan[i].keyOn=false;
if (chan[i].keyOff) chan[i].keyOff=false;
chan[i].freqChanged=false;
}
}
}
int DivPlatformT6W28::dispatch(DivCommand c) {
switch (c.cmd) {
case DIV_CMD_NOTE_ON: {
DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_PCE);
if (c.value!=DIV_NOTE_NULL) {
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].macroInit(ins);
if (!parent->song.brokenOutVol && !chan[c.chan].std.vol.will) {
chan[c.chan].outVol=chan[c.chan].vol;
}
chan[c.chan].insChanged=false;
break;
}
case DIV_CMD_NOTE_OFF:
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;
chan[c.chan].insChanged=true;
}
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) {
}
}
}
break;
case DIV_CMD_GET_VOLUME:
if (chan[c.chan].std.vol.has) {
return chan[c.chan].vol;
}
return chan[c.chan].outVol;
break;
case DIV_CMD_PITCH:
chan[c.chan].pitch=c.value;
chan[c.chan].freqChanged=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].noise=c.value;
break;
case DIV_CMD_PANNING: {
chan[c.chan].pan=(c.value&0xf0)|(c.value2>>4);
break;
}
case DIV_CMD_LEGATO:
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_PCE));
}
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_GET_VOLMAX:
return 31;
break;
case DIV_ALWAYS_SET_VOLUME:
return 1;
break;
default:
break;
}
return 1;
}
void DivPlatformT6W28::muteChannel(int ch, bool mute) {
isMuted[ch]=mute;
}
void DivPlatformT6W28::forceIns() {
for (int i=0; i<4; i++) {
chan[i].insChanged=true;
chan[i].freqChanged=true;
}
}
void* DivPlatformT6W28::getChanState(int ch) {
return &chan[ch];
}
DivMacroInt* DivPlatformT6W28::getChanMacroInt(int ch) {
return &chan[ch].std;
}
DivDispatchOscBuffer* DivPlatformT6W28::getOscBuffer(int ch) {
return oscBuf[ch];
}
unsigned char* DivPlatformT6W28::getRegisterPool() {
return regPool;
}
int DivPlatformT6W28::getRegisterPoolSize() {
return 112;
}
void DivPlatformT6W28::reset() {
while (!writes.empty()) writes.pop();
memset(regPool,0,128);
for (int i=0; i<4; i++) {
chan[i]=DivPlatformT6W28::Channel();
chan[i].std.setEngine(parent);
out[i][0].curValue=0;
out[i][1].curValue=0;
out[i][2].curValue=0;
}
if (dumpWrites) {
addWrite(0xffffffff,0);
}
t6w->reset();
lastPan=0xff;
tempL=0;
tempR=0;
cycles=0;
curChan=-1;
delay=0;
}
bool DivPlatformT6W28::isStereo() {
return true;
}
bool DivPlatformT6W28::keyOffAffectsArp(int ch) {
return true;
}
void DivPlatformT6W28::notifyInsDeletion(void* ins) {
for (int i=0; i<4; i++) {
chan[i].std.notifyInsDeletion((DivInstrument*)ins);
}
}
void DivPlatformT6W28::setFlags(const DivConfig& flags) {
chipClock=4000000.0;
rate=chipClock/16;
for (int i=0; i<4; i++) {
oscBuf[i]->rate=rate;
}
if (t6w!=NULL) {
delete t6w;
t6w=NULL;
}
t6w=new MDFN_IEN_NGP::T6W28_Apu;
for (int i=0; i<4; i++) {
t6w->osc_output(i,&out[i][0],&out[i][1],&out[i][2]);
}
}
void DivPlatformT6W28::poke(unsigned int addr, unsigned short val) {
rWrite(addr,val);
}
void DivPlatformT6W28::poke(std::vector<DivRegWrite>& wlist) {
for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
}
int DivPlatformT6W28::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
parent=p;
dumpWrites=false;
skipRegisterWrites=false;
for (int i=0; i<4; i++) {
isMuted[i]=false;
oscBuf[i]=new DivDispatchOscBuffer;
}
t6w=NULL;
setFlags(flags);
reset();
return 6;
}
void DivPlatformT6W28::quit() {
for (int i=0; i<4; i++) {
delete oscBuf[i];
}
if (t6w!=NULL) {
delete t6w;
t6w=NULL;
}
}
DivPlatformT6W28::~DivPlatformT6W28() {
}

102
src/engine/platform/t6w28.h Normal file
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@ -0,0 +1,102 @@
/**
* 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.
*/
#ifndef _T6W28_H
#define _T6W28_H
#include "../dispatch.h"
#include <queue>
#include "../macroInt.h"
#include "sound/t6w28/T6W28_Apu.h"
class DivPlatformT6W28: public DivDispatch {
struct Channel {
int freq, baseFreq, pitch, pitch2, note;
int ins;
unsigned char pan;
bool active, insChanged, freqChanged, keyOn, keyOff, inPorta, noise;
signed char vol, outVol;
DivMacroInt std;
void macroInit(DivInstrument* which) {
std.init(which);
pitch2=0;
}
Channel():
freq(0),
baseFreq(0),
pitch(0),
pitch2(0),
note(0),
ins(-1),
pan(255),
active(false),
insChanged(true),
freqChanged(false),
keyOn(false),
keyOff(false),
inPorta(false),
noise(false),
vol(15),
outVol(15) {}
};
Channel chan[4];
DivDispatchOscBuffer* oscBuf[4];
bool isMuted[4];
bool antiClickEnabled;
struct QueuedWrite {
unsigned char addr;
unsigned char val;
QueuedWrite(unsigned char a, unsigned char v): addr(a), val(v) {}
};
std::queue<QueuedWrite> writes;
unsigned char lastPan;
int cycles, curChan, delay;
int tempL, tempR;
MDFN_IEN_NGP::T6W28_Apu* t6w;
MDFN_IEN_NGP::Fake_Buffer out[4][3];
unsigned char regPool[128];
friend void putDispatchChip(void*,int);
friend void putDispatchChan(void*,int,int);
void writeOutVol(int ch);
public:
void acquire(short* bufL, short* bufR, size_t start, size_t len);
int dispatch(DivCommand c);
void* getChanState(int chan);
DivMacroInt* getChanMacroInt(int ch);
DivDispatchOscBuffer* getOscBuffer(int chan);
unsigned char* getRegisterPool();
int getRegisterPoolSize();
void reset();
void forceIns();
void tick(bool sysTick=true);
void muteChannel(int ch, bool mute);
bool isStereo();
bool keyOffAffectsArp(int ch);
void setFlags(const DivConfig& flags);
void notifyInsDeletion(void* ins);
void poke(unsigned int addr, unsigned short val);
void poke(std::vector<DivRegWrite>& wlist);
const char** getRegisterSheet();
int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
void quit();
~DivPlatformT6W28();
};
#endif

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@ -906,6 +906,7 @@ const int availableSystems[]={
DIV_SYSTEM_YM2610_FULL_EXT,
DIV_SYSTEM_YM2610B,
DIV_SYSTEM_YM2610B_EXT,
DIV_SYSTEM_T6W28,
DIV_SYSTEM_AY8910,
DIV_SYSTEM_AMIGA,
DIV_SYSTEM_PCSPKR,
@ -1001,6 +1002,7 @@ const int chipsSquare[]={
DIV_SYSTEM_SAA1099,
DIV_SYSTEM_VIC20,
DIV_SYSTEM_MSM5232,
DIV_SYSTEM_T6W28,
0 // don't remove this last one!
};