otomatalabs/furnace
8
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add compatible flag for Y8950 ADPCM Frequency

Browse source
This commit is contained in:
cam900 2022-09-24 00:24:30 +09:00
parent a44d696f09
commit b05dafe297
5 changed files with 18 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

2
src/engine/fileOps.cpp
View file

@ -179,6 +179,7 @@ bool DivEngine::loadDMF(unsigned char* file, size_t len) {
ds.brokenPortaArp=false;
ds.snNoLowPeriods=true;
ds.ignorePCEDACVolume=true;
ds.newY8950PCMFreq=false;
ds.delayBehavior=0;
ds.jumpTreatment=2;
@ -1102,6 +1103,7 @@ bool DivEngine::loadFur(unsigned char* file, size_t len) {
ds.autoSystem=false;
}
ds.ignorePCEDACVolume=true;
ds.newY8950PCMFreq=false;
ds.isDMF=false;
reader.readS(); // reserved

6
src/engine/platform/opl.cpp
View file

@ -28,6 +28,8 @@
#define KVSL(x,y) ((chan[x].state.op[orderedOpsL1[ops==4][y]].kvs==2 && isOutputL[ops==4][chan[x].state.alg][y]) || chan[x].state.op[orderedOpsL1[ops==4][y]].kvs==1)
#define OPLPCMDiv (parent->song.newY8950PCMFreq?((oplType==3)?288:72):144)
#define CHIP_FREQBASE chipFreqBase
// N = invalid
@ -274,7 +276,7 @@ double DivPlatformOPL::NOTE_ADPCMB(int note) {
if (adpcmChan<0) return 0;
if (chan[adpcmChan].sample>=0 && chan[adpcmChan].sample<parent->song.sampleLen) {
double off=65535.0*(double)(parent->getSample(chan[adpcmChan].sample)->centerRate)/8363.0;
return parent->calcBaseFreq((double)chipClock/((oplType==3)?288:72),off,note,false);
return parent->calcBaseFreq((double)chipClock/OPLPCMDiv,off,note,false);
}
return 0;
}
@ -504,7 +506,7 @@ void DivPlatformOPL::tick(bool sysTick) {
if (chan[adpcmChan].freqChanged || chan[adpcmChan].keyOn || chan[adpcmChan].keyOff) {
if (chan[adpcmChan].sample>=0 && chan[adpcmChan].sample<parent->song.sampleLen) {
double off=65535.0*(double)(parent->getSample(chan[adpcmChan].sample)->centerRate)/8363.0;
chan[adpcmChan].freq=parent->calcFreq(chan[adpcmChan].baseFreq,chan[adpcmChan].pitch,false,4,chan[adpcmChan].pitch2,(double)chipClock/((oplType==3)?288:72),off);
chan[adpcmChan].freq=parent->calcFreq(chan[adpcmChan].baseFreq,chan[adpcmChan].pitch,false,4,chan[adpcmChan].pitch2,(double)chipClock/OPLPCMDiv,off);
} else {
chan[adpcmChan].freq=0;
}

2
src/engine/song.h
View file

@ -512,6 +512,7 @@ struct DivSong {
bool brokenPortaArp;
bool snNoLowPeriods;
bool ignorePCEDACVolume;
bool newY8950PCMFreq;
bool autoSystem;
std::vector<DivInstrument*> ins;
@ -618,6 +619,7 @@ struct DivSong {
brokenPortaArp(false),
snNoLowPeriods(false),
ignorePCEDACVolume(true),
newY8950PCMFreq(false),
autoSystem(true) {
for (int i=0; i<32; i++) {
system[i]=DIV_SYSTEM_NULL;