POKEY: optimize ASAP core a bit

src/engine/platform/pokey.cpp

@@ -70,9 +70,9 @@ void DivPlatformPOKEY::acquire(short* bufL, short* bufR, size_t start, size_t le
   } else {
     acquireMZ(bufL, start, len);
   }
-}
-
-void DivPlatformPOKEY::acquireMZ(short* buf, size_t start, size_t len) {
+}
+
+void DivPlatformPOKEY::acquireMZ(short* buf, size_t start, size_t len) {
   for (size_t h=start; h<start+len; h++) {
     while (!writes.empty()) {
       QueuedWrite w=writes.front();
@@ -91,9 +91,9 @@ void DivPlatformPOKEY::acquireMZ(short* buf, size_t start, size_t len) {
       oscBuf[3]->data[oscBuf[3]->needle++]=pokey.outvol_3<<11;
     }
   }
-}
-
-void DivPlatformPOKEY::acquireASAP(short* buf, size_t start, size_t len) {
+}
+
+void DivPlatformPOKEY::acquireASAP(short* buf, size_t start, size_t len) {
   while (!writes.empty()) {
     QueuedWrite w=writes.front();
     altASAP->write(w.addr, w.val);
@@ -454,7 +454,10 @@ void DivPlatformPOKEY::setFlags(const DivConfig& flags) {
   }
 
   if (useAltASAP) {
-    altASAP=std::make_unique<AltASAP::Pokey>(chipClock, chipClock);
+    if (altASAP) {
+      delete altASAP;
+    }
+    altASAP=new AltASAP::Pokey(chipClock, chipClock);
   }
 }
 
@@ -471,6 +474,7 @@ int DivPlatformPOKEY::init(DivEngine* p, int channels, int sugRate, const DivCon
   dumpWrites=false;
   skipRegisterWrites=false;
   oscBufDelay=0;
+  altASAP=NULL;
   for (int i=0; i<4; i++) {
     isMuted[i]=false;
     oscBuf[i]=new DivDispatchOscBuffer;
@@ -489,10 +493,13 @@ void DivPlatformPOKEY::quit() {
   for (int i=0; i<4; i++) {
     delete oscBuf[i];
   }
-}
-
-void DivPlatformPOKEY::setAltASAP(bool value) {
-  useAltASAP=value;
+  if (altASAP) {
+    delete altASAP;
+  }
+}
+
+void DivPlatformPOKEY::setAltASAP(bool value) {
+  useAltASAP=value;
 }
 
 DivPlatformPOKEY::~DivPlatformPOKEY() {

src/engine/platform/pokey.h

@@ -52,7 +52,7 @@ class DivPlatformPOKEY: public DivDispatch {
   bool audctlChanged;
   unsigned char oscBufDelay;
   PokeyState pokey;
-  std::unique_ptr<AltASAP::Pokey> altASAP;
+  AltASAP::Pokey* altASAP;
   bool useAltASAP;
   unsigned char regPool[16];
   friend void putDispatchChip(void*,int);