FDS: add NSFPlay core

src/engine/dispatchContainer.cpp

@@ -228,6 +228,7 @@ void DivDispatchContainer::init(DivSystem sys, DivEngine* eng, int chanCount, do
       break;
     case DIV_SYSTEM_FDS:
       dispatch=new DivPlatformFDS;
+      ((DivPlatformFDS*)dispatch)->setNSFPlay(eng->getConfInt("fdsCore",0)==1);
       break;
     case DIV_SYSTEM_TIA:
       dispatch=new DivPlatformTIA;

src/engine/platform/fds.cpp

@@ -20,11 +20,12 @@
 #include "fds.h"
 #include "sound/nes/cpu_inline.h"
 #include "../engine.h"
+#include "sound/nes_nsfplay/nes_fds.h"
 #include <math.h>
 
 #define CHIP_FREQBASE 262144
 
-#define rWrite(a,v) if (!skipRegisterWrites) {fds_wr_mem(fds,a,v); regPool[(a)&0x7f]=v; if (dumpWrites) {addWrite(a,v);} }
+#define rWrite(a,v) if (!skipRegisterWrites) {doWrite(a,v); regPool[(a)&0x7f]=v; if (dumpWrites) {addWrite(a,v);} }
 
 const char* regCheatSheetFDS[]={
   "IOCtrl", "4023",
@@ -78,7 +79,7 @@ const char* DivPlatformFDS::getEffectName(unsigned char effect) {
   return NULL;
 }
 
-void DivPlatformFDS::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformFDS::acquire_puNES(short* bufL, short* bufR, size_t start, size_t len) {
   for (size_t i=start; i<start+len; i++) {
     extcl_apu_tick_FDS(fds);
     int sample=isMuted[0]?0:fds->snd.main.output;
@@ -92,6 +93,38 @@ void DivPlatformFDS::acquire(short* bufL, short* bufR, size_t start, size_t len)
   }
 }
 
+void DivPlatformFDS::acquire_NSFPlay(short* bufL, short* bufR, size_t start, size_t len) {
+  int out[2];
+  for (size_t i=start; i<start+len; i++) {
+    fds_NP->Tick(1);
+    fds_NP->Render(out);
+    int sample=isMuted[0]?0:(out[0]<<1);
+    if (sample>32767) sample=32767;
+    if (sample<-32768) sample=-32768;
+    bufL[i]=sample;
+    if (++writeOscBuf>=32) {
+      writeOscBuf=0;
+      oscBuf->data[oscBuf->needle++]=sample<<1;
+    }
+  }
+}
+
+void DivPlatformFDS::doWrite(unsigned short addr, unsigned char data) {
+  if (useNP) {
+    fds_NP->Write(addr,data);
+  } else {
+    fds_wr_mem(fds,addr,data);
+  }
+}
+
+void DivPlatformFDS::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+  if (useNP) {
+    acquire_NSFPlay(bufL,bufR,start,len);
+  } else {
+    acquire_puNES(bufL,bufR,start,len);
+  }
+}
+
 void DivPlatformFDS::updateWave() {
   // TODO: master volume
   rWrite(0x4089,0x80);
@@ -423,7 +456,11 @@ void DivPlatformFDS::reset() {
     addWrite(0xffffffff,0);
   }
 
-  fds_reset(fds);
+  if (useNP) {
+    fds_NP->Reset();
+  } else {
+    fds_reset(fds);
+  }
   memset(regPool,0,128);
 
   rWrite(0x4023,0);
@@ -435,6 +472,10 @@ bool DivPlatformFDS::keyOffAffectsArp(int ch) {
   return true;
 }
 
+void DivPlatformFDS::setNSFPlay(bool use) {
+  useNP=use;
+}
+
 void DivPlatformFDS::setFlags(unsigned int flags) {
   if (flags==2) { // Dendy
     rate=COLOR_PAL*2.0/5.0;
@@ -445,6 +486,10 @@ void DivPlatformFDS::setFlags(unsigned int flags) {
   }
   chipClock=rate;
   oscBuf->rate=rate/32;
+  if (useNP) {
+    fds_NP->SetClock(rate);
+    fds_NP->SetRate(rate);
+  }
 }
 
 void DivPlatformFDS::notifyInsDeletion(void* ins) {
@@ -467,7 +512,11 @@ int DivPlatformFDS::init(DivEngine* p, int channels, int sugRate, unsigned int f
   dumpWrites=false;
   skipRegisterWrites=false;
   writeOscBuf=0;
-  fds=new struct _fds;
+  if (useNP) {
+    fds_NP=new xgm::NES_FDS;
+  } else {
+    fds=new struct _fds;
+  }
   oscBuf=new DivDispatchOscBuffer;
   for (int i=0; i<1; i++) {
     isMuted[i]=false;
@@ -475,12 +524,16 @@ int DivPlatformFDS::init(DivEngine* p, int channels, int sugRate, unsigned int f
   setFlags(flags);
 
   reset();
-  return 5;
+  return 1;
 }
 
 void DivPlatformFDS::quit() {
   delete oscBuf;
-  delete fds;
+  if (useNP) {
+    delete fds_NP;
+  } else {
+    delete fds;
+  }
 }
 
 DivPlatformFDS::~DivPlatformFDS() {

src/engine/platform/fds.h

@@ -24,6 +24,8 @@
 #include "../macroInt.h"
 #include "../waveSynth.h"
 
+#include "sound/nes_nsfplay/nes_fds.h"
+
 class DivPlatformFDS: public DivDispatch {
   struct Channel {
     int freq, baseFreq, pitch, pitch2, prevFreq, note, modFreq, ins;
@@ -69,13 +71,19 @@ class DivPlatformFDS: public DivDispatch {
   DivWaveSynth ws;
   unsigned char apuType;
   unsigned char writeOscBuf;
+  bool useNP;
   struct _fds* fds;
+  xgm::NES_FDS* fds_NP;
   unsigned char regPool[128];
 
   void updateWave();
 
   friend void putDispatchChan(void*,int,int);
 
+  void doWrite(unsigned short addr, unsigned char data);
+  void acquire_puNES(short* bufL, short* bufR, size_t start, size_t len);
+  void acquire_NSFPlay(short* bufL, short* bufR, size_t start, size_t len);
+
   public:
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
@@ -88,6 +96,7 @@ class DivPlatformFDS: public DivDispatch {
     void tick(bool sysTick=true);
     void muteChannel(int ch, bool mute);
     bool keyOffAffectsArp(int ch);
+    void setNSFPlay(bool use);
     void setFlags(unsigned int flags);
     void notifyInsDeletion(void* ins);
     void poke(unsigned int addr, unsigned short val);

src/engine/platform/sound/nes_nsfplay/nes_fds.cpp

@@ -21,6 +21,8 @@ NES_FDS::NES_FDS ()
     sm[0] = 128;
     sm[1] = 128;
 
+    mask=0;
+
     Reset();
 }
 

src/gui/gui.h

@@ -789,6 +789,7 @@ class FurnaceGUI {
     int ym2612Core;
     int saaCore;
     int nesCore;
+    int fdsCore;
     int mainFont;
     int patFont;
     int audioRate;
@@ -872,6 +873,7 @@ class FurnaceGUI {
       ym2612Core(0),
       saaCore(1),
       nesCore(0),
+      fdsCore(0),
       mainFont(0),
       patFont(0),
       audioRate(44100),

src/gui/settings.cpp

@@ -868,6 +868,10 @@ void FurnaceGUI::drawSettings() {
         ImGui::SameLine();
         ImGui::Combo("##NESCore",&settings.nesCore,nesCores,2);
 
+        ImGui::Text("FDS core");
+        ImGui::SameLine();
+        ImGui::Combo("##FDSCore",&settings.fdsCore,nesCores,2);
+
         ImGui::EndTabItem();
       }
       if (ImGui::BeginTabItem("Appearance")) {
@@ -1741,6 +1745,7 @@ void FurnaceGUI::syncSettings() {
   settings.ym2612Core=e->getConfInt("ym2612Core",0);
   settings.saaCore=e->getConfInt("saaCore",1);
   settings.nesCore=e->getConfInt("nesCore",0);
+  settings.fdsCore=e->getConfInt("fdsCore",0);
   settings.mainFont=e->getConfInt("mainFont",0);
   settings.patFont=e->getConfInt("patFont",0);
   settings.mainFontPath=e->getConfString("mainFontPath","");
@@ -1816,6 +1821,7 @@ void FurnaceGUI::syncSettings() {
   clampSetting(settings.ym2612Core,0,1);
   clampSetting(settings.saaCore,0,1);
   clampSetting(settings.nesCore,0,1);
+  clampSetting(settings.fdsCore,0,1);
   clampSetting(settings.mainFont,0,6);
   clampSetting(settings.patFont,0,6);
   clampSetting(settings.patRowsBase,0,1);
@@ -1919,6 +1925,7 @@ void FurnaceGUI::commitSettings() {
   e->setConf("ym2612Core",settings.ym2612Core);
   e->setConf("saaCore",settings.saaCore);
   e->setConf("nesCore",settings.nesCore);
+  e->setConf("fdsCore",settings.fdsCore);
   e->setConf("mainFont",settings.mainFont);
   e->setConf("patFont",settings.patFont);
   e->setConf("mainFontPath",settings.mainFontPath);