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Merge branch 'master' of https://github.com/tildearrow/furnace into ym2610b

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cam900 2022-02-28 03:04:28 +09:00
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20
papers/format.md
View file

@ -4,8 +4,12 @@ while Furnace works directly with the .dmf format, I had to create a new format
this document has the goal of detailing the format.
**notice:** GitHub's Markdown formatter may break on this file as it doesn't seem to treat tables correctly.
# information
files may be zlib-compressed, but Furnace accepts uncompressed files as well.
all numbers are little-endian.
the following fields may be found in "size":
@ -71,6 +75,7 @@ the format versions are:
the header is 32 bytes long.
```
size | description
-----|------------------------------------
16 | "-Furnace module-" format magic
@ -78,9 +83,11 @@ size | description
2 | reserved
4 | song info pointer
8 | reserved
```
# song info
```
size | description
-----|------------------------------------
4 | "INFO" block ID
@ -208,9 +215,11 @@ size | description
STR | song comment
4f | master volume, 1.0f=100% (>=59)
| this is 2.0f for modules before 59
```
# instrument
```
size | description
-----|------------------------------------
4 | "INST" block ID
@ -418,9 +427,11 @@ size | description
4 | DT macro release
4 | D2R macro release
4 | SSG-EG macro release
```
# wavetable
```
size | description
-----|------------------------------------
4 | "WAVE" block ID
@ -430,9 +441,11 @@ size | description
4 | wavetable min
4 | wavetable max
4?? | wavetable data
```
# sample
```
size | description
-----|------------------------------------
4 | "SMPL" block ID
@ -460,9 +473,11 @@ size | description
??? | sample data
| - version<58 size is length*2
| - version>=58 size is length
```
# pattern
```
size | description
-----|------------------------------------
4 | "PATR" block ID
@ -479,11 +494,13 @@ size | description
| - volume
| - effect and effect data...
STR | pattern name (>=51)
```
# the Furnace instrument format (.fui)
the instrument format is pretty similar to the file format, but it also stores wavetables and samples used by the instrument.
```
size | description
-----|------------------------------------
16 | "-Furnace instr.-" format magic
@ -495,6 +512,7 @@ size | description
4 | reserved
4?? | pointers to wavetables
4?? | pointers to samples
```
instrument data follows.
@ -502,10 +520,12 @@ instrument data follows.
similar to the instrument format...
```
size | description
-----|------------------------------------
16 | "-Furnace waveta-" format magic
2 | format version
2 | reserved
```
wavetable data follows.

111
src/engine/platform/opll.cpp
View file

@ -80,29 +80,31 @@ void DivPlatformOPLL::acquire_nuked(short* bufL, short* bufR, size_t start, size
static int os;
for (size_t h=start; h<start+len; h++) {
if (!writes.empty() && --delay<0) {
// 84 is safe value
QueuedWrite& w=writes.front();
if (w.addrOrVal) {
OPLL_Write(&fm,1,w.val);
//printf("write: %x = %.2x\n",w.addr,w.val);
regPool[w.addr&0xff]=w.val;
writes.pop();
delay=21;
} else {
//printf("busycounter: %d\n",lastBusy);
OPLL_Write(&fm,0,w.addr);
w.addrOrVal=true;
delay=3;
os=0;
for (int i=0; i<9; i++) {
if (!writes.empty() && --delay<0) {
// 84 is safe value
QueuedWrite& w=writes.front();
if (w.addrOrVal) {
OPLL_Write(&fm,1,w.val);
//printf("write: %x = %.2x\n",w.addr,w.val);
regPool[w.addr&0xff]=w.val;
writes.pop();
delay=21;
} else {
//printf("busycounter: %d\n",lastBusy);
OPLL_Write(&fm,0,w.addr);
w.addrOrVal=true;
delay=3;
}
}
}
OPLL_Clock(&fm,o);
os=(o[0]+o[1])<<7;
OPLL_Clock(&fm,o);
os+=(o[0]+o[1]);
}
os*=50;
if (os<-32768) os=-32768;
if (os>32767) os=32767;
//printf("%d\n",o[0]);
bufL[h]=os;
}
}
@ -239,7 +241,12 @@ void DivPlatformOPLL::tick() {
}*/
if (chan[i].keyOn || chan[i].keyOff) {
immWrite(0x20+i,(chan[i].freqH)|(chan[i].state.alg?0x20:0));
if (chan[i].drums) {
drumState&=~(0x10>>(chan[i].note%12));
immWrite(0x0e,0x20|drumState);
} else {
immWrite(0x20+i,(chan[i].freqH)/*|(chan[i].state.alg?0x20:0)*/);
}
//chan[i].keyOn=false;
chan[i].keyOff=false;
}
@ -259,9 +266,16 @@ void DivPlatformOPLL::tick() {
int freqt=toFreq(chan[i].freq);
chan[i].freqH=freqt>>8;
chan[i].freqL=freqt&0xff;
immWrite(0x10+i,freqt&0xff);
if (!chan[i].drums) {
immWrite(0x10+i,freqt&0xff);
}
}
if (chan[i].keyOn || chan[i].freqChanged) {
if (chan[i].keyOn && chan[i].drums) {
//printf("%d\n",chan[i].note%12);
drumState|=(0x10>>(chan[i].note%12));
immWrite(0x0e,0x20|drumState);
chan[i].keyOn=false;
} else if (chan[i].keyOn || chan[i].freqChanged) {
//immWrite(0x28,0xf0|konOffs[i]);
immWrite(0x20+i,(chan[i].freqH)|(chan[i].active<<4)|(chan[i].state.alg?0x20:0));
chan[i].keyOn=false;
@ -359,7 +373,22 @@ int DivPlatformOPLL::dispatch(DivCommand c) {
rWrite(0x06,(mod.sl<<4)|(mod.rr));
rWrite(0x07,(car.sl<<4)|(car.rr));
}
rWrite(0x30+c.chan,(15-(chan[c.chan].outVol*(15-chan[c.chan].state.op[1].tl))/15)|(chan[c.chan].state.opllPreset<<4));
if (chan[c.chan].state.opllPreset==16) { // compatible drums mode
chan[c.chan].drums=true;
immWrite(0x16,0x20);
immWrite(0x26,0x05);
immWrite(0x16,0x20);
immWrite(0x26,0x05);
immWrite(0x17,0x50);
immWrite(0x27,0x05);
immWrite(0x17,0x50);
immWrite(0x27,0x05);
immWrite(0x18,0xC0);
immWrite(0x28,0x01);
} else {
chan[c.chan].drums=false;
rWrite(0x30+c.chan,(15-(chan[c.chan].outVol*(15-chan[c.chan].state.op[1].tl))/15)|(chan[c.chan].state.opllPreset<<4));
}
}
chan[c.chan].insChanged=false;
@ -367,6 +396,29 @@ int DivPlatformOPLL::dispatch(DivCommand c) {
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].baseFreq=NOTE_FREQUENCY(c.value);
chan[c.chan].note=c.value;
if (chan[c.chan].drums) {
switch (chan[c.chan].note%12) {
case 0: // kick
drumVol[0]=(15-(chan[c.chan].outVol*(15-chan[c.chan].state.op[1].tl))/15);
break;
case 1: // snare
drumVol[1]=(15-(chan[c.chan].outVol*(15-chan[c.chan].state.op[1].tl))/15);
break;
case 2: // tom
drumVol[2]=(15-(chan[c.chan].outVol*(15-chan[c.chan].state.op[1].tl))/15);
break;
case 3: // top
drumVol[3]=(15-(chan[c.chan].outVol*(15-chan[c.chan].state.op[1].tl))/15);
break;
default: // hi-hat
drumVol[4]=(15-(chan[c.chan].outVol*(15-chan[c.chan].state.op[1].tl))/15);
break;
}
rWrite(0x36,drumVol[0]);
rWrite(0x37,drumVol[1]|(drumVol[4]<<4));
rWrite(0x38,drumVol[3]|(drumVol[2]<<4));
}
chan[c.chan].freqChanged=true;
}
chan[c.chan].keyOn=true;
@ -392,7 +444,9 @@ int DivPlatformOPLL::dispatch(DivCommand c) {
if (!chan[c.chan].std.hasVol) {
chan[c.chan].outVol=c.value;
}
rWrite(0x30+c.chan,(15-(chan[c.chan].outVol*(15-chan[c.chan].state.op[1].tl))/15)|(chan[c.chan].state.opllPreset<<4));
if (!chan[c.chan].drums) {
rWrite(0x30+c.chan,(15-(chan[c.chan].outVol*(15-chan[c.chan].state.op[1].tl))/15)|(chan[c.chan].state.opllPreset<<4));
}
break;
}
case DIV_CMD_GET_VOLUME: {
@ -570,6 +624,13 @@ void DivPlatformOPLL::reset() {
}
lastBusy=60;
drumState=0;
drumVol[0]=0;
drumVol[1]=0;
drumVol[2]=0;
drumVol[3]=0;
drumVol[4]=0;
delay=0;
}
@ -619,7 +680,7 @@ void DivPlatformOPLL::setFlags(unsigned int flags) {
} else {
chipClock=COLOR_NTSC/4.0;
}
rate=chipClock;
rate=chipClock/9;
}
int DivPlatformOPLL::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {

5
src/engine/platform/opll.h
View file

@ -35,7 +35,7 @@ class DivPlatformOPLL: public DivDispatch {
unsigned char freqH, freqL;
int freq, baseFreq, pitch, note;
unsigned char ins;
bool active, insChanged, freqChanged, keyOn, keyOff, portaPause, furnaceDac, inPorta;
bool active, insChanged, freqChanged, keyOn, keyOff, drums, portaPause, furnaceDac, inPorta;
int vol, outVol;
unsigned char pan;
Channel():
@ -51,6 +51,7 @@ class DivPlatformOPLL: public DivDispatch {
freqChanged(false),
keyOn(false),
keyOff(false),
drums(false),
portaPause(false),
furnaceDac(false),
inPorta(false),
@ -69,6 +70,8 @@ class DivPlatformOPLL: public DivDispatch {
opll_t fm;
int delay;
unsigned char lastBusy;
unsigned char drumState;
unsigned char drumVol[5];
unsigned char regPool[256];

4
src/engine/platform/sound/qsound.c
View file

@ -601,8 +601,8 @@ static void state_normal_update(struct qsound_chip *chip)
{
// Echo is output on the unfiltered component of the left channel and
// the filtered component of the right channel.
int32_t wet = (ch == 1) ? echo_output<<16 : 0;
int32_t dry = (ch == 0) ? echo_output<<16 : 0;
int32_t wet = (ch == 1) ? echo_output<<14 : 0;
int32_t dry = (ch == 0) ? echo_output<<14 : 0;
int32_t output = 0;
for(int v=0; v<19; v++)

93
src/engine/vgmOps.cpp
View file

@ -20,15 +20,15 @@
#include "engine.h"
#include "../ta-log.h"
#include "../utfutils.h"
#include "song.h"
constexpr int MASTER_CLOCK_PREC=(sizeof(void*)==8)?8:0;
void DivEngine::performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write, int streamOff, double* loopTimer, double* loopFreq, int* loopSample, bool isSecond) {
if (write.addr==0xffffffff) { // Furnace fake reset
switch (sys) {
case DIV_SYSTEM_GENESIS:
case DIV_SYSTEM_GENESIS_EXT:
case DIV_SYSTEM_YM2612:
case DIV_SYSTEM_YM2612_EXT:
for (int i=0; i<3; i++) { // set SL and RR to highest
w->writeC(isSecond?0xa2:0x52);
w->writeC(0x80+i);
@ -67,12 +67,6 @@ void DivEngine::performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write
w->writeC(isSecond?0xa2:0x52); // disable DAC
w->writeC(0x2b);
w->writeC(0);
if (sys!=DIV_SYSTEM_YM2612) {
for (int i=0; i<4; i++) {
w->writeC(isSecond?0x30:0x50);
w->writeC(0x90|(i<<5)|15);
}
}
break;
case DIV_SYSTEM_SMS:
for (int i=0; i<4; i++) {
@ -128,7 +122,6 @@ void DivEngine::performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write
w->writeC(isSecond?0x95:0x15);
w->writeC(0);
break;
case DIV_SYSTEM_ARCADE:
case DIV_SYSTEM_YM2151:
for (int i=0; i<8; i++) {
w->writeC(isSecond?0xa4:0x54);
@ -148,12 +141,13 @@ void DivEngine::performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write
w->writeC(0x08);
w->writeC(i);
}
if (sys==DIV_SYSTEM_ARCADE) {
for (int i=0; i<5; i++) {
w->writeC(0xc0);
w->writeS((isSecond?0x8086:0x86)+(i<<3));
w->writeC(3);
}
break;
case DIV_SYSTEM_SEGAPCM:
case DIV_SYSTEM_SEGAPCM_COMPAT:
for (int i=0; i<16; i++) {
w->writeC(0xc0);
w->writeS((isSecond?0x8086:0x86)+(i<<3));
w->writeC(3);
}
break;
case DIV_SYSTEM_YM2610:
@ -303,6 +297,7 @@ void DivEngine::performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write
}
if (write.addr>=0xffff0000) { // Furnace special command
unsigned char streamID=streamOff+((write.addr&0xff00)>>8);
logD("writing stream command %x:%x with stream ID %d\n",write.addr,write.val,streamID);
switch (write.addr&0xff) {
case 0: // play sample
if (write.val<song.sampleLen) {
@ -332,9 +327,8 @@ void DivEngine::performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write
return;
}
switch (sys) {
case DIV_SYSTEM_GENESIS:
case DIV_SYSTEM_GENESIS_EXT:
case DIV_SYSTEM_YM2612:
case DIV_SYSTEM_YM2612_EXT:
switch (write.addr>>8) {
case 0: // port 0
w->writeC(isSecond?0xa2:0x52);
@ -371,20 +365,16 @@ void DivEngine::performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write
w->writeC((isSecond?0x80:0)|(write.addr&0xff));
w->writeC(write.val);
break;
case DIV_SYSTEM_ARCADE:
case DIV_SYSTEM_YM2151:
switch (write.addr>>16) {
case 0: // YM2151
w->writeC(isSecond?0xa4:0x54);
w->writeC(write.addr&0xff);
w->writeC(write.val);
break;
case 1: // SegaPCM
w->writeC(0xc0);
w->writeS((isSecond?0x8000:0)|(write.addr&0xffff));
w->writeC(write.val);
break;
}
w->writeC(isSecond?0xa4:0x54);
w->writeC(write.addr&0xff);
w->writeC(write.val);
break;
case DIV_SYSTEM_SEGAPCM:
case DIV_SYSTEM_SEGAPCM_COMPAT:
w->writeC(0xc0);
w->writeS((isSecond?0x8000:0)|(write.addr&0xffff));
w->writeC(write.val);
break;
case DIV_SYSTEM_YM2610:
case DIV_SYSTEM_YM2610_FULL:
@ -550,30 +540,6 @@ SafeWriter* DivEngine::saveVGM(bool* sysToExport, bool loop) {
if (!sysToExport[i]) continue;
}
switch (song.system[i]) {
case DIV_SYSTEM_GENESIS:
case DIV_SYSTEM_GENESIS_EXT:
writeDACSamples=true;
if (!hasOPN2) {
hasOPN2=disCont[i].dispatch->chipClock;
willExport[i]=true;
} else if (!(hasOPN2&0x40000000)) {
isSecond[i]=true;
willExport[i]=true;
hasOPN2|=0x40000000;
howManyChips++;
addWarning("adding a compound system two times is experimental!");
}
if (!hasSN) {
hasSN=3579545;
willExport[i]=true;
} else if (!(hasSN&0x40000000)) {
isSecond[i]=true;
willExport[i]=true;
hasSN|=0x40000000;
howManyChips++;
addWarning("adding a compound system two times is experimental!");
}
break;
case DIV_SYSTEM_SMS:
if (!hasSN) {
hasSN=disCont[i].dispatch->chipClock;
@ -634,17 +600,8 @@ SafeWriter* DivEngine::saveVGM(bool* sysToExport, bool loop) {
howManyChips++;
}
break;
case DIV_SYSTEM_ARCADE:
if (!hasOPM) {
hasOPM=disCont[i].dispatch->chipClock;
willExport[i]=true;
} else if (!(hasOPM&0x40000000)) {
isSecond[i]=true;
willExport[i]=true;
hasOPM|=0x40000000;
howManyChips++;
addWarning("adding a compound system two times is experimental!");
}
case DIV_SYSTEM_SEGAPCM:
case DIV_SYSTEM_SEGAPCM_COMPAT:
if (!hasSegaPCM) {
hasSegaPCM=4000000;
willExport[i]=true;
@ -654,7 +611,6 @@ SafeWriter* DivEngine::saveVGM(bool* sysToExport, bool loop) {
willExport[i]=true;
hasSegaPCM|=0x40000000;
howManyChips++;
addWarning("adding a compound system two times is experimental!");
}
break;
case DIV_SYSTEM_YM2610:
@ -703,6 +659,7 @@ SafeWriter* DivEngine::saveVGM(bool* sysToExport, bool loop) {
}
break;
case DIV_SYSTEM_YM2612:
case DIV_SYSTEM_YM2612_EXT:
if (!hasOPN2) {
hasOPN2=disCont[i].dispatch->chipClock;
willExport[i]=true;
@ -978,8 +935,8 @@ SafeWriter* DivEngine::saveVGM(bool* sysToExport, bool loop) {
if (!willExport[i]) continue;
streamIDs[i]=streamID;
switch (song.system[i]) {
case DIV_SYSTEM_GENESIS:
case DIV_SYSTEM_GENESIS_EXT:
case DIV_SYSTEM_YM2612:
case DIV_SYSTEM_YM2612_EXT:
w->writeC(0x90);
w->writeC(streamID);
w->writeC(0x02);