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VGM export: NES samples

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This commit is contained in:
tildearrow 2022-01-24 17:48:58 -05:00
parent 92b5620497
commit cda191afee
2 changed files with 55 additions and 3 deletions
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45
src/engine/engine.cpp
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@ -2084,6 +2084,8 @@ SafeWriter* DivEngine::saveVGM() {
int streamIDs[32];
bool writeDACSamples=false;
bool writeNESSamples=false;
bool writePCESamples=false;
bool writeADPCM=false;
bool writeSegaPCM=false;
@ -2119,14 +2121,14 @@ SafeWriter* DivEngine::saveVGM() {
if (!hasPCE) {
hasPCE=3579545;
willExport[i]=true;
writeDACSamples=true;
writePCESamples=true;
}
break;
case DIV_SYSTEM_NES:
if (!hasNES) {
hasNES=1789773;
willExport[i]=true;
writeDACSamples=true;
writeNESSamples=true;
}
break;
case DIV_SYSTEM_ARCADE:
@ -2275,6 +2277,27 @@ SafeWriter* DivEngine::saveVGM() {
}
}
if (writeNESSamples) for (int i=0; i<song.sampleLen; i++) {
DivSample* sample=song.sample[i];
w->writeC(0x67);
w->writeC(0x66);
w->writeC(7);
w->writeI(sample->rendLength);
if (sample->depth==8) {
for (unsigned int j=0; j<sample->rendLength; j++) {
w->writeC(((unsigned char)sample->rendData[j]+0x80)>>1);
}
} else {
for (unsigned int j=0; j<sample->rendLength; j++) {
w->writeC(((unsigned short)sample->rendData[j]+0x8000)>>9);
}
}
}
if (writePCESamples) {
// TODO
}
if (writeSegaPCM) {
unsigned char* pcmMem=new unsigned char[16777216];
@ -2366,6 +2389,24 @@ SafeWriter* DivEngine::saveVGM() {
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