Merge branch 'doc-info' of https://github.com/ElectricKeet/furnace into doc-info

TODO.md

@@ -3,14 +3,10 @@
 - tutorial?
 - ease-of-use improvements... ideas:
   - preset compat flags
-  - setting to toggle the Choose a System screen on new project
   - maybe reduced set of presets for the sake of simplicity
   - a more preferable highlight/drag system
   - some speed/intuitive workflow improvements that go a long way 
-  - Had a hard time finding the docs on github and in Furnace's folder.
   - make .pdf manual out of doc/
-  - you're going too slow; please run
   - break compatibility if it relieves complexity
-- ins/wave/sample organization (folders and all)
 - multi-key binds
 - bug fixes

doc/7-systems/pce.md

@@ -19,4 +19,4 @@ furthermore, it has some PCM and LFO!
   - when LFO is enabled, channel 2 is muted and its output is passed to channel 1's frequency.
 - `13xx`: **set LFO speed.**
 - `17xx`: **toggle PCM mode.**
-  - _this effect is here for compatibility reasons;_ it is otherwise recommended to use Sample type instruments (which automatically enable PCM mode when used).
+  - _this effect is here for compatibility reasons_; it is otherwise recommended to use Sample type instruments (which automatically enable PCM mode when used).

src/audio/rtmidi.cpp

@@ -160,6 +160,7 @@ bool TAMidiInRtMidi::quit() {
 
 bool TAMidiOutRtMidi::send(const TAMidiMessage& what) {
   if (!isOpen) return false;
+  if (!isWorking) return false;
   if (what.type<0x80) return false;
   size_t len=0;
   switch (what.type&0xf0) {
@@ -190,6 +191,7 @@ bool TAMidiOutRtMidi::send(const TAMidiMessage& what) {
         port->sendMessage(what.sysExData.get(),len);
       } catch (RtMidiError& e) {
         logE("MIDI output error! %s",e.what());
+        isWorking=false;
         return false;
       }
       return true;
@@ -209,6 +211,7 @@ bool TAMidiOutRtMidi::send(const TAMidiMessage& what) {
     port->sendMessage((const unsigned char*)&what.type,len);
   } catch (RtMidiError& e) {
     logE("MIDI output error! %s",e.what());
+    isWorking=false;
     return false;
   }
   return true;
@@ -237,17 +240,20 @@ bool TAMidiOutRtMidi::openDevice(String name) {
     }
     isOpen=portOpen;
     if (!portOpen) logW("could not find MIDI out device...");
+    isWorking=true;
     return portOpen;
   } catch (RtMidiError& e) {
     logW("could not open MIDI out device! %s",e.what());
     return false;
   }
+  isWorking=true;
   return true;
 }
 
 bool TAMidiOutRtMidi::closeDevice() {
   if (port==NULL) return false;
   if (!isOpen) return false;
+  isWorking=false;
   try {
     port->closePort();
   } catch (RtMidiError& e) {

src/audio/rtmidi.h

@@ -38,7 +38,7 @@ class TAMidiInRtMidi: public TAMidiIn {
 
 class TAMidiOutRtMidi: public TAMidiOut {
   RtMidiOut* port;
-  bool isOpen;
+  bool isOpen, isWorking;
   public:
     bool send(const TAMidiMessage& what);
     bool isDeviceOpen();
@@ -49,5 +49,6 @@ class TAMidiOutRtMidi: public TAMidiOut {
     bool init();
     TAMidiOutRtMidi():
       port(NULL),
-      isOpen(false) {}
+      isOpen(false),
+      isWorking(false) {}
 };

src/engine/platform/segapcm.cpp

@@ -423,7 +423,7 @@ const void* DivPlatformSegaPCM::getSampleMem(int index) {
 }
 
 size_t DivPlatformSegaPCM::getSampleMemCapacity(int index) {
-  return index == 0 ? 16777216 : 0;
+  return index == 0 ? 2097152 : 0;
 }
 
 size_t DivPlatformSegaPCM::getSampleMemUsage(int index) {
@@ -465,7 +465,7 @@ void DivPlatformSegaPCM::reset() {
 void DivPlatformSegaPCM::renderSamples(int sysID) {
   size_t memPos=0;
 
-  memset(sampleMem,0,16777216);
+  memset(sampleMem,0,2097152);
   memset(sampleLoaded,0,256*sizeof(bool));
   memset(sampleOffSegaPCM,0,256*sizeof(unsigned int));
   memset(sampleEndSegaPCM,0,256);
@@ -482,7 +482,7 @@ void DivPlatformSegaPCM::renderSamples(int sysID) {
     }
     logV("- sample %d will be at %x with length %x",i,memPos,alignedSize);
     sampleLoaded[i]=true;
-    if (memPos>=16777216) break;
+    if (memPos>=2097152) break;
     sampleOffSegaPCM[i]=memPos;
     for (unsigned int j=0; j<alignedSize; j++) {
       if (j>=sample->samples) {
@@ -491,10 +491,10 @@ void DivPlatformSegaPCM::renderSamples(int sysID) {
         sampleMem[memPos++]=((unsigned char)sample->data8[j]+0x80);
       }
       sampleEndSegaPCM[i]=((memPos+0xff)>>8)-1;
-      if (memPos>=16777216) break;
+      if (memPos>=2097152) break;
     }
     logV("  and it ends in %d",sampleEndSegaPCM[i]);
-    if (memPos>=16777216) break;
+    if (memPos>=2097152) break;
   }
   sampleMemLen=memPos;
 }
@@ -522,10 +522,10 @@ int DivPlatformSegaPCM::init(DivEngine* p, int channels, int sugRate, const DivC
     isMuted[i]=false;
     oscBuf[i]=new DivDispatchOscBuffer;
   }
-  sampleMem=new unsigned char[16777216];
+  sampleMem=new unsigned char[2097152];
   pcm.set_bank(segapcm_device::BANK_12M|segapcm_device::BANK_MASKF8);
   pcm.set_read([this](unsigned int addr) -> unsigned char {
-    return sampleMem[addr&0xffffff];
+    return sampleMem[addr&0x1fffff];
   });
   setFlags(flags);
   reset();

src/engine/playback.cpp

@@ -1691,6 +1691,10 @@ void DivEngine::runMidiTime(int totalCycles) {
 }
 
 void DivEngine::nextBuf(float** in, float** out, int inChans, int outChans, unsigned int size) {
+  if (!size) {
+    logW("nextBuf called with size 0!");
+    return;
+  }
   lastLoopPos=-1;
 
   if (out!=NULL) {

src/gui/gui.cpp

@@ -497,6 +497,15 @@ bool FurnaceGUI::InvCheckbox(const char* label, bool* value) {
   return false;
 }
 
+void FurnaceGUI::sameLineMaybe(float width) {
+  if (width<0.0f) width=ImGui::GetFrameHeight();
+
+  logV("sameLineMaybe: %f %f",ImGui::GetContentRegionAvail().x,width);
+
+  ImGui::SameLine();
+  if (ImGui::GetContentRegionAvail().x<width) ImGui::NewLine();
+}
+
 const char* FurnaceGUI::getSystemName(DivSystem which) {
   /*
   if (settings.chipNames) {
@@ -5076,8 +5085,25 @@ bool FurnaceGUI::loop() {
       newSongQuery="";
       newSongFirstFrame=true;
       displayNew=false;
+      if (settings.newSongBehavior==1) {
+        e->createNewFromDefaults();
+        undoHist.clear();
+        redoHist.clear();
+        curFileName="";
+        modified=false;
+        curNibble=false;
+        orderNibble=false;
+        orderCursor=-1;
+        samplePos=0;
+        updateSampleTex=true;
+        selStart=SelectionPoint();
+        selEnd=SelectionPoint();
+        cursor=SelectionPoint();
+        updateWindowTitle();
+      } else {
         ImGui::OpenPopup("New Song");
       }
+    }
 
     if (displayEditString) {
       ImGui::OpenPopup("EditString");

src/gui/gui.h

@@ -1508,6 +1508,7 @@ class FurnaceGUI {
     int renderClearPos;
     int insertBehavior;
     int pullDeleteRow;
+    int newSongBehavior;
     unsigned int maxUndoSteps;
     String mainFontPath;
     String patFontPath;
@@ -1659,6 +1660,7 @@ class FurnaceGUI {
       renderClearPos(0),
       insertBehavior(1),
       pullDeleteRow(1),
+      newSongBehavior(0),
       maxUndoSteps(100),
       mainFontPath(""),
       patFontPath(""),
@@ -2089,6 +2091,8 @@ class FurnaceGUI {
   void pushWarningColor(bool warnCond, bool errorCond=false);
   void popWarningColor();
 
+  void sameLineMaybe(float width=-1.0f);
+
   float calcBPM(const DivGroovePattern& speeds, float hz, int vN, int vD);
 
   void patternRow(int i, bool isPlaying, float lineHeight, int chans, int ord, const DivPattern** patCache, bool inhibitSel);

src/gui/insEdit.cpp

@@ -59,79 +59,79 @@ const char* opllVariants[4]={
 const char* opllInsNames[4][17]={
   /* YM2413 */ {
     "User",
-    "Violin",
+    "1. Violin",
-    "Guitar",
+    "2. Guitar",
-    "Piano",
+    "3. Piano",
-    "Flute",
+    "4. Flute",
-    "Clarinet",
+    "5. Clarinet",
-    "Oboe",
+    "6. Oboe",
-    "Trumpet",
+    "7. Trumpet",
-    "Organ",
+    "8. Organ",
-    "Horn",
+    "9. Horn",
-    "Synth",
+    "10. Synth",
-    "Harpsichord",
+    "11. Harpsichord",
-    "Vibraphone",
+    "12. Vibraphone",
-    "Synth Bass",
+    "13. Synth Bass",
-    "Acoustic Bass",
+    "14. Acoustic Bass",
-    "Electric Guitar",
+    "15. Electric Guitar",
     "Drums"
   },
   /* YMF281 */ {
     "User",
-    "Electric String",
+    "1. Electric String",
-    "Bow wow",
+    "2. Bow wow",
-    "Electric Guitar",
+    "3. Electric Guitar",
-    "Organ",
+    "4. Organ",
-    "Clarinet",
+    "5. Clarinet",
-    "Saxophone",
+    "6. Saxophone",
-    "Trumpet",
+    "7. Trumpet",
-    "Street Organ",
+    "8. Street Organ",
-    "Synth Brass",
+    "9. Synth Brass",
-    "Electric Piano",
+    "10. Electric Piano",
-    "Bass",
+    "11. Bass",
-    "Vibraphone",
+    "12. Vibraphone",
-    "Chime",
+    "13. Chime",
-    "Tom Tom II",
+    "14. Tom Tom II",
-    "Noise",
+    "15. Noise",
     "Drums"
   },
   /* YM2423 */ {
     "User",
-    "Strings",
+    "1. Strings",
-    "Guitar",
+    "2. Guitar",
-    "Electric Guitar",
+    "3. Electric Guitar",
-    "Electric Piano",
+    "4. Electric Piano",
-    "Flute",
+    "5. Flute",
-    "Marimba",
+    "6. Marimba",
-    "Trumpet",
+    "7. Trumpet",
-    "Harmonica",
+    "8. Harmonica",
-    "Tuba",
+    "9. Tuba",
-    "Synth Brass",
+    "10. Synth Brass",
-    "Short Saw",
+    "11. Short Saw",
-    "Vibraphone",
+    "12. Vibraphone",
-    "Electric Guitar 2",
+    "13. Electric Guitar 2",
-    "Synth Bass",
+    "14. Synth Bass",
-    "Sitar",
+    "15. Sitar",
     "Drums"
   },
   // stolen from FamiTracker
   /* VRC7 */ {
     "User",
-    "Bell",
+    "1. Bell",
-    "Guitar",
+    "2. Guitar",
-    "Piano",
+    "3. Piano",
-    "Flute",
+    "4. Flute",
-    "Clarinet",
+    "5. Clarinet",
-    "Rattling Bell",
+    "6. Rattling Bell",
-    "Trumpet",
+    "7. Trumpet",
-    "Reed Organ",
+    "8. Reed Organ",
-    "Soft Bell",
+    "9. Soft Bell",
-    "Xylophone",
+    "10. Xylophone",
-    "Vibraphone",
+    "11. Vibraphone",
-    "Brass",
+    "12. Brass",
-    "Bass Guitar",
+    "13. Bass Guitar",
-    "Synth",
+    "14. Synth",
-    "Chorus",
+    "15. Chorus",
     "Drums"
   }
 };

src/gui/sampleEdit.cpp

@@ -200,6 +200,9 @@ void FurnaceGUI::drawSampleEdit() {
                 SAMPLE_WARN(warnLoopPos,"QSound: loop cannot be longer than 32767 samples");
               }
             }
+            if (sample->samples>65535) {
+              SAMPLE_WARN(warnLength,"QSound: maximum sample length is 65535");
+            }
             break;
           case DIV_SYSTEM_NES:
             if (sample->loop) {
@@ -207,11 +210,17 @@ void FurnaceGUI::drawSampleEdit() {
                 SAMPLE_WARN(warnLoopPos,"NES: loop point ignored on DPCM (may only loop entire sample)");
               }
             }
+            if (sample->samples>32648) {
+              SAMPLE_WARN(warnLength,"NES: maximum DPCM sample length is 32648");
+            }
             break;
           case DIV_SYSTEM_X1_010:
             if (sample->loop) {
               SAMPLE_WARN(warnLoop,"X1-010: samples can't loop");
             }
+            if (sample->samples>131072) {
+              SAMPLE_WARN(warnLength,"X1-010: maximum sample length is 131072");
+            }
             break;
           case DIV_SYSTEM_GA20:
             if (sample->loop) {
@@ -235,9 +244,12 @@ void FurnaceGUI::drawSampleEdit() {
             if (sample->loop) {
               SAMPLE_WARN(warnLoop,"YM2610: ADPCM-A samples can't loop");
               if (sample->loopStart!=0 || sample->loopEnd!=(int)(sample->samples)) {
-                SAMPLE_WARN(warnLoopPos,"YM2608: loop point ignored on ADPCM-B (may only loop entire sample)");
+                SAMPLE_WARN(warnLoopPos,"YM2610: loop point ignored on ADPCM-B (may only loop entire sample)");
               }
             }
+            if (sample->samples>2097152) {
+              SAMPLE_WARN(warnLength,"YM2610: maximum ADPCM-A sample length is 2097152");
+            }
             break;
           case DIV_SYSTEM_AMIGA:
             if (sample->loop) {
@@ -245,10 +257,28 @@ void FurnaceGUI::drawSampleEdit() {
                 SAMPLE_WARN(warnLoopPos,"Amiga: loop must be a multiple of 2");
               }
             }
+            if (sample->samples>131070) {
+              SAMPLE_WARN(warnLength,"Amiga: maximum sample length is 131070");
+            }
+            break;
+          case DIV_SYSTEM_SEGAPCM:
+          case DIV_SYSTEM_SEGAPCM_COMPAT:
+            if (sample->samples>65280) {
+              SAMPLE_WARN(warnLength,"SegaPCM: maximum sample length is 65280");
+            }
             break;
           default:
             break;
         }
+        if (e->song.system[i]!=DIV_SYSTEM_PCM_DAC) {
+          if (e->song.system[i]==DIV_SYSTEM_ES5506) {
+            if (sample->loopMode==DIV_SAMPLE_LOOP_BACKWARD) {
+              SAMPLE_WARN(warnLoopMode,"ES5506: backward loop mode isn't supported");
+            }
+          } else if (sample->loopMode!=DIV_SAMPLE_LOOP_FORWARD) {
+            SAMPLE_WARN(warnLoopMode,"backward/ping-pong only supported in Generic PCM DAC\nping-pong also on ES5506");
+          }
+        }
 
         // chips grid
         DivDispatch* dispatch=e->getDispatch(i);
@@ -514,6 +544,9 @@ void FurnaceGUI::drawSampleEdit() {
             }
             ImGui::EndCombo();
           }
+          if (ImGui::IsItemHovered() && !warnLoopMode.empty()) {
+            ImGui::SetTooltip("%s",warnLoopMode.c_str());
+          }
           popWarningColor();
 
           pushWarningColor(!warnLoopPos.empty());
@@ -682,7 +715,7 @@ void FurnaceGUI::drawSampleEdit() {
       if (ImGui::IsItemHovered()) {
         ImGui::SetTooltip("Edit mode: Select");
       }
-      ImGui::SameLine();
+      sameLineMaybe();
       pushToggleColors(sampleDragMode);
       if (ImGui::Button(ICON_FA_PENCIL "##SDraw")) {
         sampleDragMode=true;
@@ -692,9 +725,9 @@ void FurnaceGUI::drawSampleEdit() {
         ImGui::SetTooltip("Edit mode: Draw");
       }
       ImGui::BeginDisabled(sample->depth!=DIV_SAMPLE_DEPTH_8BIT && sample->depth!=DIV_SAMPLE_DEPTH_16BIT);
-      ImGui::SameLine();
+      sameLineMaybe();
       ImGui::Dummy(ImVec2(4.0*dpiScale,dpiScale));
-      ImGui::SameLine();
+      sameLineMaybe();
       ImGui::Button(ICON_FA_ARROWS_H "##SResize");
       if (ImGui::IsItemClicked()) {
         resizeSize=sample->samples;
@@ -729,7 +762,7 @@ void FurnaceGUI::drawSampleEdit() {
       } else {
         resizeSize=sample->samples;
       }
-      ImGui::SameLine();
+      sameLineMaybe();
       ImGui::Button(ICON_FA_EXPAND "##SResample");
       if (ImGui::IsItemClicked()) {
         resampleTarget=targetRate;
@@ -786,14 +819,14 @@ void FurnaceGUI::drawSampleEdit() {
       }
       ImGui::SameLine();
       ImGui::Dummy(ImVec2(4.0*dpiScale,dpiScale));
-      ImGui::SameLine();
+      sameLineMaybe();
       if (ImGui::Button(ICON_FA_UNDO "##SUndo")) {
         doUndoSample();
       }
       if (ImGui::IsItemHovered()) {
         ImGui::SetTooltip("Undo");
       }
-      ImGui::SameLine();
+      sameLineMaybe();
       if (ImGui::Button(ICON_FA_REPEAT "##SRedo")) {
         doRedoSample();
       }
@@ -802,7 +835,7 @@ void FurnaceGUI::drawSampleEdit() {
       }
       ImGui::SameLine();
       ImGui::Dummy(ImVec2(4.0*dpiScale,dpiScale));
-      ImGui::SameLine();
+      sameLineMaybe();
       ImGui::Button(ICON_FA_VOLUME_UP "##SAmplify");
       if (ImGui::IsItemHovered()) {
         ImGui::SetTooltip("Amplify");
@@ -850,28 +883,28 @@ void FurnaceGUI::drawSampleEdit() {
         }
         ImGui::EndPopup();
       }
-      ImGui::SameLine();
+      sameLineMaybe();
       if (ImGui::Button(ICON_FA_ARROWS_V "##SNormalize")) {
         doAction(GUI_ACTION_SAMPLE_NORMALIZE);
       }
       if (ImGui::IsItemHovered()) {
         ImGui::SetTooltip("Normalize");
       }
-      ImGui::SameLine();
+      sameLineMaybe();
       if (ImGui::Button(ICON_FA_ARROW_UP "##SFadeIn")) {
         doAction(GUI_ACTION_SAMPLE_FADE_IN);
       }
       if (ImGui::IsItemHovered()) {
         ImGui::SetTooltip("Fade in");
       }
-      ImGui::SameLine();
+      sameLineMaybe();
       if (ImGui::Button(ICON_FA_ARROW_DOWN "##SFadeOut")) {
         doAction(GUI_ACTION_SAMPLE_FADE_OUT);
       }
       if (ImGui::IsItemHovered()) {
         ImGui::SetTooltip("Fade out");
       }
-      ImGui::SameLine();
+      sameLineMaybe();
       ImGui::Button(ICON_FA_ADJUST "##SInsertSilence");
       if (ImGui::IsItemHovered()) {
         ImGui::SetTooltip("Insert silence");
@@ -902,21 +935,21 @@ void FurnaceGUI::drawSampleEdit() {
         }
         ImGui::EndPopup();
       }
-      ImGui::SameLine();
+      sameLineMaybe();
       if (ImGui::Button(ICON_FA_ERASER "##SSilence")) {
         doAction(GUI_ACTION_SAMPLE_SILENCE);
       }
       if (ImGui::IsItemHovered()) {
         ImGui::SetTooltip("Apply silence");
       }
-      ImGui::SameLine();
+      sameLineMaybe();
       if (ImGui::Button(ICON_FA_TIMES "##SDelete")) {
         doAction(GUI_ACTION_SAMPLE_DELETE);
       }
       if (ImGui::IsItemHovered()) {
         ImGui::SetTooltip("Delete");
       }
-      ImGui::SameLine();
+      sameLineMaybe();
       if (ImGui::Button(ICON_FA_CROP "##STrim")) {
         doAction(GUI_ACTION_SAMPLE_TRIM);
       }
@@ -925,28 +958,28 @@ void FurnaceGUI::drawSampleEdit() {
       }
       ImGui::SameLine();
       ImGui::Dummy(ImVec2(4.0*dpiScale,dpiScale));
-      ImGui::SameLine();
+      sameLineMaybe();
       if (ImGui::Button(ICON_FA_BACKWARD "##SReverse")) {
         doAction(GUI_ACTION_SAMPLE_REVERSE);
       }
       if (ImGui::IsItemHovered()) {
         ImGui::SetTooltip("Reverse");
       }
-      ImGui::SameLine();
+      sameLineMaybe();
       if (ImGui::Button(ICON_FA_SORT_AMOUNT_ASC "##SInvert")) {
         doAction(GUI_ACTION_SAMPLE_INVERT);
       }
       if (ImGui::IsItemHovered()) {
         ImGui::SetTooltip("Invert");
       }
-      ImGui::SameLine();
+      sameLineMaybe();
       if (ImGui::Button(ICON_FA_LEVEL_DOWN "##SSign")) {
         doAction(GUI_ACTION_SAMPLE_SIGN);
       }
       if (ImGui::IsItemHovered()) {
         ImGui::SetTooltip("Signed/unsigned exchange");
       }
-      ImGui::SameLine();
+      sameLineMaybe();
       ImGui::Button(ICON_FA_INDUSTRY "##SFilter");
       if (ImGui::IsItemHovered()) {
         ImGui::SetTooltip("Apply filter");
@@ -1062,21 +1095,21 @@ void FurnaceGUI::drawSampleEdit() {
       ImGui::EndDisabled();
       ImGui::SameLine();
       ImGui::Dummy(ImVec2(4.0*dpiScale,dpiScale));
-      ImGui::SameLine();
+      sameLineMaybe();
       if (ImGui::Button(ICON_FA_PLAY "##PreviewSample")) {
         e->previewSample(curSample);
       }
       if (ImGui::IsItemHovered()) {
         ImGui::SetTooltip("Preview sample");
       }
-      ImGui::SameLine();
+      sameLineMaybe();
       if (ImGui::Button(ICON_FA_STOP "##StopSample")) {
         e->stopSamplePreview();
       }
       if (ImGui::IsItemHovered()) {
         ImGui::SetTooltip("Stop sample preview");
       }
-      ImGui::SameLine();
+      sameLineMaybe();
       if (ImGui::Button(ICON_FA_UPLOAD "##MakeIns")) {
         doAction(GUI_ACTION_SAMPLE_MAKE_INS);
       }
@@ -1084,7 +1117,7 @@ void FurnaceGUI::drawSampleEdit() {
         ImGui::SetTooltip("Create instrument from sample");
       }
 
-      ImGui::SameLine();
+      sameLineMaybe(ImGui::CalcTextSize("Zoom").x+150.0f*dpiScale+ImGui::CalcTextSize("100%").x);
       double zoomPercent=100.0/sampleZoom;
       bool checkZoomLimit=false;
       ImGui::Text("Zoom");
@@ -1702,7 +1735,16 @@ void FurnaceGUI::drawSampleEdit() {
           ImGui::TableNextColumn();
           ImGui::TextUnformatted(statusBar2.c_str());
           ImGui::TableNextColumn();
+          if (!warnLength.empty()) {
+            ImGui::PushStyleColor(ImGuiCol_Text,uiColors[GUI_COLOR_WARNING]);
             ImGui::TextUnformatted(statusBar3.c_str());
+            ImGui::PopStyleColor();
+            if (ImGui::IsItemHovered()) {
+              ImGui::SetTooltip("%s",warnLength.c_str());
+            }
+          } else {
+            ImGui::TextUnformatted(statusBar3.c_str());
+          }
 
           ImGui::EndTable();
         }

src/gui/settings.cpp

@@ -508,6 +508,14 @@ void FurnaceGUI::drawSettings() {
             settings.alwaysPlayIntro=3;
           }
 
+          ImGui::Text("When creating new song:");
+          if (ImGui::RadioButton("Display system preset selector##NSB0",settings.newSongBehavior==0)) {
+            settings.newSongBehavior=0;
+          }
+          if (ImGui::RadioButton("Start with initial system##NSB1",settings.newSongBehavior==1)) {
+            settings.newSongBehavior=1;
+          }
+
           ImGui::Separator();
 
           if (CWSliderFloat("Double-click time (seconds)",&settings.doubleClickTime,0.02,1.0,"%.2f")) {
@@ -2757,6 +2765,7 @@ void FurnaceGUI::syncSettings() {
   settings.renderClearPos=e->getConfInt("renderClearPos",0);
   settings.insertBehavior=e->getConfInt("insertBehavior",1);
   settings.pullDeleteRow=e->getConfInt("pullDeleteRow",1);
+  settings.newSongBehavior=e->getConfInt("newSongBehavior",0);
 
   clampSetting(settings.mainFontSize,2,96);
   clampSetting(settings.patFontSize,2,96);
@@ -2882,6 +2891,7 @@ void FurnaceGUI::syncSettings() {
   clampSetting(settings.renderClearPos,0,1);
   clampSetting(settings.insertBehavior,0,1);
   clampSetting(settings.pullDeleteRow,0,1);
+  clampSetting(settings.newSongBehavior,0,1);
 
   if (settings.exportLoops<0.0) settings.exportLoops=0.0;
   if (settings.exportFadeOut<0.0) settings.exportFadeOut=0.0;
@@ -3103,6 +3113,7 @@ void FurnaceGUI::commitSettings() {
   e->setConf("renderClearPos",settings.renderClearPos);
   e->setConf("insertBehavior",settings.insertBehavior);
   e->setConf("pullDeleteRow",settings.pullDeleteRow);
+  e->setConf("newSongBehavior",settings.newSongBehavior);
 
   // colors
   for (int i=0; i<GUI_COLOR_MAX; i++) {