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VGM export: prepare for "direct stream mode"

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this will eventually allow for DualPCM and MSM6258 export

DO NOT USE YET
This commit is contained in:
tildearrow 2022-10-17 04:17:00 -05:00
parent c3e2e902af
commit 684b5a928b
7 changed files with 147 additions and 126 deletions
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2
src/engine/dispatch.h
View file

@ -324,7 +324,7 @@ class DivDispatch {
* @param rate stream rate (e.g. 44100 for VGM).
* @param len number of samples.
*/
virtual void fillStream(std::vector<DivDelayedWrite>& stream, int rate, size_t len);
virtual void fillStream(std::vector<DivDelayedWrite>& stream, int sRate, size_t len);
/**
* send a command to this dispatch.

4
src/engine/engine.h
View file

@ -431,7 +431,7 @@ class DivEngine {
void processRow(int i, bool afterDelay);
void nextOrder();
void nextRow();
void performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write, int streamOff, double* loopTimer, double* loopFreq, int* loopSample, bool* sampleDir, bool isSecond);
void performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write, int streamOff, double* loopTimer, double* loopFreq, int* loopSample, bool* sampleDir, bool isSecond, bool directStream);
// returns true if end of song.
bool nextTick(bool noAccum=false, bool inhibitLowLat=false);
bool perSystemEffect(int ch, unsigned char effect, unsigned char effectVal);
@ -515,7 +515,7 @@ class DivEngine {
// specify system to build ROM for.
SafeWriter* buildROM(int sys);
// dump to VGM.
SafeWriter* saveVGM(bool* sysToExport=NULL, bool loop=true, int version=0x171, bool patternHints=false);
SafeWriter* saveVGM(bool* sysToExport=NULL, bool loop=true, int version=0x171, bool patternHints=false, bool directStream=false);
// dump to ZSM.
SafeWriter* saveZSM(unsigned int zsmrate=60, bool loop=true);
// dump command stream.

2
src/engine/platform/abstract.cpp
View file

@ -22,7 +22,7 @@
void DivDispatch::acquire(short* bufL, short* bufR, size_t start, size_t len) {
}
void DivDispatch::fillStream(std::vector<DivDelayedWrite>& stream, int rate, size_t len) {
void DivDispatch::fillStream(std::vector<DivDelayedWrite>& stream, int sRate, size_t len) {
}
void DivDispatch::tick(bool sysTick) {

6
src/engine/sysDef.cpp
View file

@ -1553,7 +1553,7 @@ void DivEngine::registerSystems() {
);
sysDefs[DIV_SYSTEM_MSM6258]=new DivSysDef(
"OKI MSM6258", NULL, 0xab, 0, 1, false, true, 0, false, 1U<<DIV_SAMPLE_DEPTH_VOX,
"OKI MSM6258", NULL, 0xab, 0, 1, false, true, 0x150, false, 1U<<DIV_SAMPLE_DEPTH_VOX,
"an ADPCM sound chip manufactured by OKI and used in the Sharp X68000.",
{"Sample"},
{"PCM"},
@ -1632,7 +1632,7 @@ void DivEngine::registerSystems() {
);
sysDefs[DIV_SYSTEM_YM2612_FRAC]=new DivSysDef(
"Yamaha YM2612 (OPN2) with DualPCM", NULL, 0xbe, 0, 7, true, false, 0, false, 1U<<DIV_SAMPLE_DEPTH_8BIT,
"Yamaha YM2612 (OPN2) with DualPCM", NULL, 0xbe, 0, 7, true, false, 0x150, false, 1U<<DIV_SAMPLE_DEPTH_8BIT,
"this chip is mostly known for being in the Sega Genesis (but it also was on the FM Towns computer).\nthis system uses software mixing to provide two sample channels.",
{"FM 1", "FM 2", "FM 3", "FM 4", "FM 5", "FM 6/PCM 1", "PCM 2"},
{"F1", "F2", "F3", "F4", "F5", "P1", "P2"},
@ -1644,7 +1644,7 @@ void DivEngine::registerSystems() {
);
sysDefs[DIV_SYSTEM_YM2612_FRAC_EXT]=new DivSysDef(
"Yamaha YM2612 (OPN2) Extended Channel 3 with DualPCM and CSM", NULL, 0xbd, 0, 11, true, false, 0, false, 1U<<DIV_SAMPLE_DEPTH_8BIT,
"Yamaha YM2612 (OPN2) Extended Channel 3 with DualPCM and CSM", NULL, 0xbd, 0, 11, true, false, 0x150, false, 1U<<DIV_SAMPLE_DEPTH_8BIT,
"this chip is mostly known for being in the Sega Genesis (but it also was on the FM Towns computer).\nthis system uses software mixing to provide two sample channels.\nthis one is in Extended Channel mode, which turns the third FM channel into four operators with independent notes/frequencies.",
{"FM 1", "FM 2", "FM 3 OP1", "FM 3 OP2", "FM 3 OP3", "FM 3 OP4", "FM 4", "FM 5", "FM 6/PCM 1", "PCM 2", "CSM Timer"},
{"F1", "F2", "O1", "O2", "O3", "O4", "F4", "F5", "P1", "P2", "CSM"},

247
src/engine/vgmOps.cpp
View file

@ -24,7 +24,7 @@
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* sampleDir, bool isSecond) {
void DivEngine::performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write, int streamOff, double* loopTimer, double* loopFreq, int* loopSample, bool* sampleDir, bool isSecond, bool directStream) {
unsigned char baseAddr1=isSecond?0xa0:0x50;
unsigned char baseAddr2=isSecond?0x80:0;
unsigned short baseAddr2S=isSecond?0x8000:0;
@ -515,7 +515,7 @@ void DivEngine::performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write
break;
}
}
if (write.addr>=0xffff0000) { // Furnace special command
if (write.addr>=0xffff0000 && !directStream) { // Furnace special command
unsigned char streamID=streamOff+((write.addr&0xff00)>>8);
logD("writing stream command %x:%x with stream ID %d",write.addr,write.val,streamID);
switch (write.addr&0xff) {
@ -843,7 +843,7 @@ void DivEngine::performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write
chipVol.push_back((_id)|(0x80000100)|(((unsigned int)_vol)<<16)); \
}
SafeWriter* DivEngine::saveVGM(bool* sysToExport, bool loop, int version, bool patternHints) {
SafeWriter* DivEngine::saveVGM(bool* sysToExport, bool loop, int version, bool patternHints, bool directStream) {
if (version<0x150) {
lastError="VGM version is too low";
return NULL;
@ -947,6 +947,7 @@ SafeWriter* DivEngine::saveVGM(bool* sysToExport, bool loop, int version, bool p
int loopSample[DIV_MAX_CHANS];
bool sampleDir[DIV_MAX_CHANS];
std::vector<unsigned int> chipVol;
std::vector<DivDelayedWrite> delayedWrites[32];
for (int i=0; i<DIV_MAX_CHANS; i++) {
loopTimer[i]=0;
@ -1585,7 +1586,7 @@ SafeWriter* DivEngine::saveVGM(bool* sysToExport, bool loop, int version, bool p
sampleSeek+=sample->length8;
}
if (writeDACSamples) for (int i=0; i<song.sampleLen; i++) {
if (writeDACSamples && !directStream) for (int i=0; i<song.sampleLen; i++) {
DivSample* sample=song.sample[i];
w->writeC(0x67);
w->writeC(0x66);
@ -1596,7 +1597,7 @@ SafeWriter* DivEngine::saveVGM(bool* sysToExport, bool loop, int version, bool p
}
}
if (writeNESSamples) for (int i=0; i<song.sampleLen; i++) {
if (writeNESSamples && !directStream) for (int i=0; i<song.sampleLen; i++) {
DivSample* sample=song.sample[i];
w->writeC(0x67);
w->writeC(0x66);
@ -1607,7 +1608,7 @@ SafeWriter* DivEngine::saveVGM(bool* sysToExport, bool loop, int version, bool p
}
}
if (writePCESamples) for (int i=0; i<song.sampleLen; i++) {
if (writePCESamples && !directStream) for (int i=0; i<song.sampleLen; i++) {
DivSample* sample=song.sample[i];
w->writeC(0x67);
w->writeC(0x66);
@ -1785,87 +1786,89 @@ SafeWriter* DivEngine::saveVGM(bool* sysToExport, bool loop, int version, bool p
// initialize streams
int streamID=0;
for (int i=0; i<song.systemLen; i++) {
if (!willExport[i]) continue;
streamIDs[i]=streamID;
switch (song.system[i]) {
case DIV_SYSTEM_YM2612:
case DIV_SYSTEM_YM2612_EXT:
w->writeC(0x90);
w->writeC(streamID);
w->writeC(0x02);
w->writeC(0); // port
w->writeC(0x2a); // DAC
w->writeC(0x91);
w->writeC(streamID);
w->writeC(0);
w->writeC(1);
w->writeC(0);
w->writeC(0x92);
w->writeC(streamID);
w->writeI(32000); // default
streamID++;
break;
case DIV_SYSTEM_NES:
w->writeC(0x90);
w->writeC(streamID);
w->writeC(20);
w->writeC(0); // port
w->writeC(0x11); // DAC
w->writeC(0x91);
w->writeC(streamID);
w->writeC(7);
w->writeC(1);
w->writeC(0);
w->writeC(0x92);
w->writeC(streamID);
w->writeI(32000); // default
streamID++;
break;
case DIV_SYSTEM_PCE:
for (int j=0; j<6; j++) {
if (!directStream) {
for (int i=0; i<song.systemLen; i++) {
if (!willExport[i]) continue;
streamIDs[i]=streamID;
switch (song.system[i]) {
case DIV_SYSTEM_YM2612:
case DIV_SYSTEM_YM2612_EXT:
w->writeC(0x90);
w->writeC(streamID);
w->writeC(27);
w->writeC(j); // port
w->writeC(0x06); // select+DAC
w->writeC(0x02);
w->writeC(0); // port
w->writeC(0x2a); // DAC
w->writeC(0x91);
w->writeC(streamID);
w->writeC(5);
w->writeC(0);
w->writeC(1);
w->writeC(0);
w->writeC(0x92);
w->writeC(streamID);
w->writeI(16000); // default
w->writeI(32000); // default
streamID++;
}
break;
case DIV_SYSTEM_SWAN:
w->writeC(0x90);
w->writeC(streamID);
w->writeC(isSecond[i]?0xa1:0x21);
w->writeC(0); // port
w->writeC(0x09); // DAC
break;
case DIV_SYSTEM_NES:
w->writeC(0x90);
w->writeC(streamID);
w->writeC(20);
w->writeC(0); // port
w->writeC(0x11); // DAC
w->writeC(0x91);
w->writeC(streamID);
w->writeC(0);
w->writeC(1);
w->writeC(0);
w->writeC(0x91);
w->writeC(streamID);
w->writeC(7);
w->writeC(1);
w->writeC(0);
w->writeC(0x92);
w->writeC(streamID);
w->writeI(24000); // default
streamID++;
break;
default:
break;
w->writeC(0x92);
w->writeC(streamID);
w->writeI(32000); // default
streamID++;
break;
case DIV_SYSTEM_PCE:
for (int j=0; j<6; j++) {
w->writeC(0x90);
w->writeC(streamID);
w->writeC(27);
w->writeC(j); // port
w->writeC(0x06); // select+DAC
w->writeC(0x91);
w->writeC(streamID);
w->writeC(5);
w->writeC(1);
w->writeC(0);
w->writeC(0x92);
w->writeC(streamID);
w->writeI(16000); // default
streamID++;
}
break;
case DIV_SYSTEM_SWAN:
w->writeC(0x90);
w->writeC(streamID);
w->writeC(isSecond[i]?0xa1:0x21);
w->writeC(0); // port
w->writeC(0x09); // DAC
w->writeC(0x91);
w->writeC(streamID);
w->writeC(0);
w->writeC(1);
w->writeC(0);
w->writeC(0x92);
w->writeC(streamID);
w->writeI(24000); // default
streamID++;
break;
default:
break;
}
}
}
@ -1894,10 +1897,12 @@ SafeWriter* DivEngine::saveVGM(bool* sysToExport, bool loop, int version, bool p
break;
}
// stop all streams
for (int i=0; i<streamID; i++) {
w->writeC(0x94);
w->writeC(i);
loopSample[i]=-1;
if (!directStream) {
for (int i=0; i<streamID; i++) {
w->writeC(0x94);
w->writeC(i);
loopSample[i]=-1;
}
}
if (!playing) {
@ -1929,63 +1934,69 @@ SafeWriter* DivEngine::saveVGM(bool* sysToExport, bool loop, int version, bool p
for (int i=0; i<song.systemLen; i++) {
std::vector<DivRegWrite>& writes=disCont[i].dispatch->getRegisterWrites();
for (DivRegWrite& j: writes) {
performVGMWrite(w,song.system[i],j,streamIDs[i],loopTimer,loopFreq,loopSample,sampleDir,isSecond[i]);
performVGMWrite(w,song.system[i],j,streamIDs[i],loopTimer,loopFreq,loopSample,sampleDir,isSecond[i],directStream);
writeCount++;
}
writes.clear();
}
// check whether we need to loop
int totalWait=cycles>>MASTER_CLOCK_PREC;
for (int i=0; i<streamID; i++) {
if (loopSample[i]>=0) {
loopTimer[i]-=(loopFreq[i]/44100.0)*(double)totalWait;
if (directStream) {
for (int i=0; i<song.systemLen; i++) {
disCont[i].dispatch->fillStream(delayedWrites[i],44100,totalWait);
}
}
bool haveNegatives=false;
for (int i=0; i<streamID; i++) {
if (loopSample[i]>=0) {
if (loopTimer[i]<0) {
haveNegatives=true;
} else {
for (int i=0; i<streamID; i++) {
if (loopSample[i]>=0) {
loopTimer[i]-=(loopFreq[i]/44100.0)*(double)totalWait;
}
}
}
while (haveNegatives) {
// finish all negatives
int nextToTouch=-1;
bool haveNegatives=false;
for (int i=0; i<streamID; i++) {
if (loopSample[i]>=0) {
if (loopTimer[i]<0) {
if (nextToTouch>=0) {
if (loopTimer[nextToTouch]>loopTimer[i]) nextToTouch=i;
} else {
nextToTouch=i;
}
haveNegatives=true;
}
}
}
if (nextToTouch>=0) {
double waitTime=totalWait+(loopTimer[nextToTouch]*(44100.0/MAX(1,loopFreq[nextToTouch])));
if (waitTime>0) {
w->writeC(0x61);
w->writeS(waitTime);
logV("wait is: %f",waitTime);
totalWait-=waitTime;
tickCount+=waitTime;
}
if (loopSample[nextToTouch]<song.sampleLen) {
DivSample* sample=song.sample[loopSample[nextToTouch]];
// insert loop
if (sample->getLoopStartPosition(DIV_SAMPLE_DEPTH_8BIT)<sample->getLoopEndPosition(DIV_SAMPLE_DEPTH_8BIT)) {
w->writeC(0x93);
w->writeC(nextToTouch);
w->writeI(sampleOff8[loopSample[nextToTouch]]+sample->getLoopStartPosition(DIV_SAMPLE_DEPTH_8BIT));
w->writeC(0x81);
w->writeI(sample->getLoopEndPosition(DIV_SAMPLE_DEPTH_8BIT)-sample->getLoopStartPosition(DIV_SAMPLE_DEPTH_8BIT));
while (haveNegatives) {
// finish all negatives
int nextToTouch=-1;
for (int i=0; i<streamID; i++) {
if (loopSample[i]>=0) {
if (loopTimer[i]<0) {
if (nextToTouch>=0) {
if (loopTimer[nextToTouch]>loopTimer[i]) nextToTouch=i;
} else {
nextToTouch=i;
}
}
}
}
loopSample[nextToTouch]=-1;
} else {
haveNegatives=false;
if (nextToTouch>=0) {
double waitTime=totalWait+(loopTimer[nextToTouch]*(44100.0/MAX(1,loopFreq[nextToTouch])));
if (waitTime>0) {
w->writeC(0x61);
w->writeS(waitTime);
logV("wait is: %f",waitTime);
totalWait-=waitTime;
tickCount+=waitTime;
}
if (loopSample[nextToTouch]<song.sampleLen) {
DivSample* sample=song.sample[loopSample[nextToTouch]];
// insert loop
if (sample->getLoopStartPosition(DIV_SAMPLE_DEPTH_8BIT)<sample->getLoopEndPosition(DIV_SAMPLE_DEPTH_8BIT)) {
w->writeC(0x93);
w->writeC(nextToTouch);
w->writeI(sampleOff8[loopSample[nextToTouch]]+sample->getLoopStartPosition(DIV_SAMPLE_DEPTH_8BIT));
w->writeC(0x81);
w->writeI(sample->getLoopEndPosition(DIV_SAMPLE_DEPTH_8BIT)-sample->getLoopStartPosition(DIV_SAMPLE_DEPTH_8BIT));
}
}
loopSample[nextToTouch]=-1;
} else {
haveNegatives=false;
}
}
}
// write wait

11
src/gui/gui.cpp
View file

@ -3390,6 +3390,14 @@ bool FurnaceGUI::loop() {
"pattern indexes are ordered as they appear in the song."
);
}
ImGui::Checkbox("direct stream mode",&vgmExportDirectStream);
if (ImGui::IsItemHovered()) {
ImGui::SetTooltip(
"required for DualPCM and MSM6258 export.\n\n"
"allows for volume/direction changes when playing samples,\n"
"at the cost of a massive increase in file size."
);
}
ImGui::Text("chips to export:");
bool hasOneAtLeast=false;
for (int i=0; i<e->song.systemLen; i++) {
@ -4161,7 +4169,7 @@ bool FurnaceGUI::loop() {
break;
}
case GUI_FILE_EXPORT_VGM: {
SafeWriter* w=e->saveVGM(willExport,vgmExportLoop,vgmExportVersion,vgmExportPatternHints);
SafeWriter* w=e->saveVGM(willExport,vgmExportLoop,vgmExportVersion,vgmExportPatternHints,vgmExportDirectStream);
if (w!=NULL) {
FILE* f=ps_fopen(copyOfName.c_str(),"wb");
if (f!=NULL) {
@ -5309,6 +5317,7 @@ FurnaceGUI::FurnaceGUI():
vgmExportLoop(true),
zsmExportLoop(true),
vgmExportPatternHints(false),
vgmExportDirectStream(false),
portrait(false),
mobileMenuOpen(false),
wantCaptureKeyboard(false),

1
src/gui/gui.h
View file

@ -1035,6 +1035,7 @@ class FurnaceGUI {
std::deque<String> recentFile;
bool quit, warnQuit, willCommit, edit, modified, displayError, displayExporting, vgmExportLoop, zsmExportLoop, vgmExportPatternHints;
bool vgmExportDirectStream;
bool portrait, mobileMenuOpen;
bool wantCaptureKeyboard, oldWantCaptureKeyboard, displayMacroMenu;
bool displayNew, fullScreen, preserveChanPos, wantScrollList, noteInputPoly;