remove hasSampleInsHeader()

- it is only used by MultiPCM
- an alternative approach is in place

src/engine/dispatch.h

@@ -1007,14 +1007,7 @@ class DivDispatch {
      * @return whether it did.
      */
     virtual bool hasSamplePtrHeader(int index=0);
-    
-    /**
-     * check whether chip has sample instrument header in sample memory.
-     * @param index the memory index.
-     * @return whether it did.
-     */
-    virtual bool hasSampleInsHeader(int index=0);
-    
+
     /**
      * check whether sample has been loaded in memory.
      * @param index index.

src/engine/engine.cpp

@@ -2681,6 +2681,9 @@ void DivEngine::loadTempIns(DivInstrument* which) {
     tempIns=new DivInstrument;
   }
   *tempIns=*which;
+  for (int i=0; i<song.systemLen; i++) {
+    disCont[i].dispatch->notifyInsAddition(i);
+  }
   BUSY_END;
 }
 
@@ -2706,15 +2709,6 @@ void DivEngine::delInstrumentUnsafe(int index) {
     }
     removeAsset(song.insDir,index);
     checkAssetDir(song.insDir,song.ins.size());
-    bool hasSampleIns=false;
-    for (int s=0; s<song.systemLen; s++) {
-      if (disCont[s].dispatch->hasSampleInsHeader()) {
-        hasSampleIns=true;
-      }
-    }
-    if (hasSampleIns) {
-      renderSamplesP();
-    }
   }
 }
 

src/engine/platform/abstract.cpp

@@ -221,10 +221,6 @@ bool DivDispatch::hasSamplePtrHeader(int index) {
   return false;
 }
 
-bool DivDispatch::hasSampleInsHeader(int index) {
-  return false;
-}
-
 size_t DivDispatch::getSampleMemOffset(int index) {
   return 0;
 }

src/engine/platform/multipcm.cpp

@@ -566,10 +566,6 @@ bool DivPlatformMultiPCM::hasSamplePtrHeader(int index) {
   return (index==0);
 }
 
-bool DivPlatformMultiPCM::hasSampleInsHeader(int index) {
-  return (index==0);
-}
-
 bool DivPlatformMultiPCM::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
   if (sample<0 || sample>32767) return false;

src/engine/platform/multipcm.h

@@ -130,7 +130,6 @@ class DivPlatformMultiPCM: public DivDispatch {
     size_t getSampleMemCapacity(int index);
     size_t getSampleMemUsage(int index);
     bool hasSamplePtrHeader(int index=0);
-    bool hasSampleInsHeader(int index=0);
     bool isSampleLoaded(int index, int sample);
     const DivMemoryComposition* getMemCompo(int index);
     void renderSamples(int chipID);