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SCC: acquireDirect()

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This commit is contained in:
tildearrow 2025-03-06 19:06:45 -05:00
parent 7a6f6a6745
commit c2228cd74b
7 changed files with 94 additions and 105 deletions
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10
src/engine/dispatchContainer.cpp
View file

@ -672,20 +672,10 @@ void DivDispatchContainer::init(DivSystem sys, DivEngine* eng, int chanCount, do
case DIV_SYSTEM_SCC:
dispatch=new DivPlatformSCC;
((DivPlatformSCC*)dispatch)->setChipModel(false);
if (isRender) {
((DivPlatformSCC*)dispatch)->setCoreQuality(eng->getConfInt("sccQualityRender",3));
} else {
((DivPlatformSCC*)dispatch)->setCoreQuality(eng->getConfInt("sccQuality",3));
}
break;
case DIV_SYSTEM_SCC_PLUS:
dispatch=new DivPlatformSCC;
((DivPlatformSCC*)dispatch)->setChipModel(true);
if (isRender) {
((DivPlatformSCC*)dispatch)->setCoreQuality(eng->getConfInt("sccQualityRender",3));
} else {
((DivPlatformSCC*)dispatch)->setCoreQuality(eng->getConfInt("sccQuality",3));
}
break;
case DIV_SYSTEM_YMZ280B:
dispatch=new DivPlatformYMZ280B;

48
src/engine/platform/scc.cpp
View file

@ -81,19 +81,17 @@ const char** DivPlatformSCC::getRegisterSheet() {
}
void DivPlatformSCC::acquire(short** buf, size_t len) {
}
void DivPlatformSCC::acquireDirect(blip_buffer_t** bb, size_t len) {
for (int i=0; i<5; i++) {
oscBuf[i]->begin(len);
}
for (size_t h=0; h<len; h++) {
scc->tick(coreQuality);
short out=(short)scc->out()<<5;
buf[0][h]=out;
for (int i=0; i<5; i++) {
oscBuf[i]->putSample(h,scc->voice_out(i)<<7);
}
}
scc->tick(len,bb[0],oscBuf);
//for (int i=0; i<5; i++) {
// oscBuf[i]->putSample(h,scc->voice_out(i)<<7);
//}
for (int i=0; i<5; i++) {
oscBuf[i]->end(len);
@ -346,6 +344,10 @@ int DivPlatformSCC::getOutputCount() {
return 1;
}
bool DivPlatformSCC::hasAcquireDirect() {
return true;
}
void DivPlatformSCC::notifyWaveChange(int wave) {
for (int i=0; i<5; i++) {
if (chan[i].wave==wave) {
@ -391,38 +393,12 @@ void DivPlatformSCC::setFlags(const DivConfig& flags) {
break;
}
CHECK_CUSTOM_CLOCK;
rate=chipClock/(coreQuality>>1);
rate=chipClock*2;
for (int i=0; i<5; i++) {
oscBuf[i]->setRate(rate);
}
}
void DivPlatformSCC::setCoreQuality(unsigned char q) {
switch (q) {
case 0:
coreQuality=128;
break;
case 1:
coreQuality=64;
break;
case 2:
coreQuality=32;
break;
case 3:
coreQuality=16;
break;
case 4:
coreQuality=8;
break;
case 5:
coreQuality=2;
break;
default:
coreQuality=16;
break;
}
}
int DivPlatformSCC::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
parent=p;
dumpWrites=false;

4
src/engine/platform/scc.h
View file

@ -41,7 +41,6 @@ class DivPlatformSCC: public DivDispatch {
unsigned char writeOscBuf;
int lastUpdated34;
int coreQuality;
scc_core* scc;
bool isPlus;
unsigned char regBase;
@ -51,6 +50,7 @@ class DivPlatformSCC: public DivDispatch {
friend void putDispatchChan(void*,int,int);
public:
void acquire(short** buf, size_t len);
void acquireDirect(blip_buffer_t** bb, size_t len);
int dispatch(DivCommand c);
void* getChanState(int chan);
DivMacroInt* getChanMacroInt(int ch);
@ -62,6 +62,7 @@ class DivPlatformSCC: public DivDispatch {
void tick(bool sysTick=true);
void muteChannel(int ch, bool mute);
int getOutputCount();
bool hasAcquireDirect();
void notifyWaveChange(int wave);
void notifyInsDeletion(void* ins);
void poke(unsigned int addr, unsigned short val);
@ -69,7 +70,6 @@ class DivPlatformSCC: public DivDispatch {
const char** getRegisterSheet();
void setFlags(const DivConfig& flags);
int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
void setCoreQuality(unsigned char q);
void setChipModel(bool isPlus);
void quit();
~DivPlatformSCC();