Functions to make pileup events.
authorvestbo <vestbo@f7af4fe6-9843-0410-8265-dc069ae4e863>
Mon, 7 Jan 2002 16:32:11 +0000 (16:32 +0000)
committervestbo <vestbo@f7af4fe6-9843-0410-8265-dc069ae4e863>
Mon, 7 Jan 2002 16:32:11 +0000 (16:32 +0000)
HLT/exa/MakePileup.cxx [new file with mode: 0644]
HLT/exa/MakePileup.h [new file with mode: 0644]

diff --git a/HLT/exa/MakePileup.cxx b/HLT/exa/MakePileup.cxx
new file mode 100644 (file)
index 0000000..4c5df7e
--- /dev/null
@@ -0,0 +1,247 @@
+#ifndef __CINT__
+#include "AliL3FileHandler.h"
+#include "AliL3DigitData.h"
+#include "AliL3Transform.h"
+#include <stdio.h>
+#include <iostream.h>
+
+void QSort(AliL3DigitData **a,Int_t first,Int_t last);
+Int_t CompareDigits(AliL3DigitData *a,AliL3DigitData *b);
+#endif
+
+void Read2(Int_t triggerevent)
+{
+  Int_t srow[2] = {0,175};
+  UInt_t size;
+  const Int_t NEvents = 25;
+  //Int_t Offset[25] = {0,10,20,30,40,50,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220,230,240};
+  //Int_t Offset[25] = {0,20,40,60,80,100,120,140,160,180,200,220,240,-20,-40,-60,-80,-100,-120,-140,-160,-180,-200,-220,-240};
+  Int_t Offset[25]   = {30,60,90,120,150,180,210,240,270,300,330,360,-30,-60,-90,-120,-150,-180,-210,-240,-270,-300,-330,-360,-390};
+  Offset[triggerevent]=0;
+  AliL3FileHandler *hand[NEvents];
+  AliL3DigitRowData *data[NEvents];
+  AliL3DigitData *rowData[NEvents];
+  AliL3DigitData *test;
+  Char_t Carry[255];
+  //Int_t event = 0;
+  Int_t DigitsTot = 0;
+  Int_t MeVDigit;
+  Int_t DigitsPerRow = 0;
+  //AliL3DigitRowData *NData;
+  Byte_t *NData;
+  Int_t tot_dig=0;
+  
+  AliL3Transform *transform = new AliL3Transform();
+  const Int_t maxdigits=50000;
+  AliL3DigitData *temp[maxdigits];
+  AliL3DigitData *temp2[maxdigits];
+  
+  
+  for(Int_t slice=0 ; slice<36 ; slice++){
+    for(Int_t event = 0; event < NEvents ; event++){
+      hand[event] = new AliL3FileHandler();
+      sprintf(Carry,"/prog/alice/data/Rawdata/1_patch/pp/event_%d/digits_%d_0.raw",event,slice);
+      if(!hand[event]->SetBinaryInput(Carry))
+       cerr<<" Error opening file :"<<Carry<<endl;
+      cout << "Open File: " << Carry;
+      hand[event]->Init(slice,0,srow);
+      data[event] = hand[event]->CompBinary2Memory(size);
+      cout<<" done"<<endl;
+      hand[event]->CloseBinaryInput();
+    }
+    DigitsTot=0;
+    Int_t sign = slice < 18 ? -1 : 1;
+    for(Int_t row = 0 ; row < 176 ; row++){
+      
+      for(Int_t event = 0; event < NEvents ; event++){
+       rowData[event] = (AliL3DigitData *)data[event]->fDigitData;
+       for(UInt_t dig=0; dig<data[event]->fNDigit; dig++)
+         {
+           Int_t time = rowData[event][dig].fTime + sign*Offset[event];
+           if(time < transform->GetNTimeBins() && time >= 0)
+             DigitsTot++;
+         }
+       //DigitsTot += data[event]->fNDigit;
+       hand[event]->UpdateRowPointer(data[event]);
+      }
+      
+    }
+    //cout << "Try to allocate : " << DigitsTot << " Digits in row : " << row << endl;
+    
+    
+    //NData = (AliL3DigitRowData*) malloc(AllDigitsSize);// Allocate !
+    
+    Int_t AllDigitsSize = sizeof(AliL3DigitData) * DigitsTot + sizeof(AliL3DigitRowData) * 176;
+    NData = new Byte_t[AllDigitsSize];
+    memset(NData,0,AllDigitsSize);
+    AliL3DigitRowData *AllRowData = (AliL3DigitRowData*)NData;
+    
+    //cout << "Allocated " << endl;
+    
+    //Reset the data pointers, because they changed when doing UpdateRowPointer.
+    for(Int_t event=0; event<NEvents; event++)
+      data[event] = (AliL3DigitRowData*)hand[event]->GetDataPointer(size);
+    
+    tot_dig=0;
+    for(Int_t row = 0 ; row < 176 ; row++){
+      DigitsPerRow = 0;
+      for(Int_t event = 0; event < NEvents ; event++){
+       rowData[event] = (AliL3DigitData *)data[event]->fDigitData;
+       for(UInt_t dig=0; dig<data[event]->fNDigit; dig++)
+         {
+           Int_t time = rowData[event][dig].fTime + sign*Offset[event];
+           if(time < transform->GetNTimeBins() && time >= 0)
+             DigitsPerRow++;
+         }
+       //DigitsPerRow += data[event]->fNDigit;// + DigitsPerRow; 
+      }
+      //tot_dig += DigitsPerRow;
+      //cout << "Found : " << DigitsPerRow << " in all Events, Row :" << row << endl;
+      
+      /*
+       AllRowData->fRow = row;
+       AllRowData->fNDigit = DigitsPerRow;
+       test = (AliL3DigitData *) AllRowData->fDigitData;
+      */
+      
+      //cout << "Got Row Pointer " << endl;
+      MeVDigit = 0;
+      for(Int_t event = 0; event < NEvents ; event++){
+       rowData[event] = (AliL3DigitData *)data[event]->fDigitData;
+       for(UInt_t digit = 0; digit < data[event]->fNDigit ; digit++){
+         
+         //Copy the digits to a temporary storage, because we have to sort them before storing them :
+         Int_t time = rowData[event][digit].fTime + sign*Offset[event];
+         if(time >= transform->GetNTimeBins() || time < 0)
+           continue;
+         
+         temp[MeVDigit] = &rowData[event][digit];
+         temp[MeVDigit]->fTime = temp[MeVDigit]->fTime + sign*Offset[event];
+         
+         //cout << MeVDigit << " : " << digit << endl;
+         MeVDigit++;
+       }
+       hand[event]->UpdateRowPointer(data[event]);
+      }
+      //Sort the digits:
+      QSort(temp,0,MeVDigit);
+      int final_count=0;
+      
+      //Now, loop and check for overlaps:
+      for(Int_t c=0; c<MeVDigit; c++)
+       {
+         
+         if(c>0 && temp[c]->fTime == temp[c-1]->fTime && temp[c]->fPad == temp[c-1]->fPad)
+           {//this one is overlapping with the previous one:
+             temp2[final_count-1]->fCharge += temp[c+1]->fCharge;
+             if(temp2[final_count-1]->fCharge>=1024)
+               temp2[final_count-1]->fCharge=1023;//Saturation
+           }
+         else
+           {
+             temp2[final_count] = temp[c];
+             final_count++;
+           }
+       }
+      tot_dig+=final_count;
+      AllRowData->fRow = row;
+      AllRowData->fNDigit = final_count;
+      test = (AliL3DigitData *) AllRowData->fDigitData;
+      
+      for(Int_t c=0; c<final_count; c++)//and copy them to the new event:
+       {
+         test[c].fCharge = temp2[c]->fCharge;
+         test[c].fPad = temp2[c]->fPad;
+         test[c].fTime = temp2[c]->fTime;
+         if(c>0 && test[c].fTime == test[c-1].fTime && test[c].fPad == test[c-1].fPad)
+           cout<<"Overlap at row "<<row<<" pad "<<(int)test[c].fPad<<" time "<<(int)test[c].fTime<<endl;
+         //  cout<<"Copying back, pad "<<(int)test[c].fPad<<" time "<<(int)test[c].fTime<<" charge "<<(int)test[c].fCharge<<endl;
+       }
+      
+      if(MeVDigit!=DigitsPerRow)
+       cerr<<endl<<"Error: "<<MeVDigit<<" "<<DigitsPerRow<<endl;
+      if(final_count > MeVDigit)
+       cerr<<"Error; final_count "<<final_count<<" MeVDigit "<<MeVDigit<<endl;
+      Byte_t *tmp = (Byte_t *)AllRowData;
+      Int_t UpdateSize = sizeof(AliL3DigitRowData) + sizeof(AliL3DigitData)*final_count;//DigitsPerRow;
+      tmp += UpdateSize;
+      AllRowData = (AliL3DigitRowData *) tmp; 
+      
+    }
+    if(tot_dig>DigitsTot)
+      cerr<<endl<<"Mismatching digitcount "<<tot_dig<<" "<<DigitsTot<<endl;
+    
+    for(Int_t event = 0; event < NEvents ; event++)
+      {
+       data[event]=0;
+       delete hand[event];
+      }
+    
+    AliL3FileHandler *Out = new AliL3FileHandler();
+    //sprintf(Carry,"/prog/alice/data/Rawdata/PileUp/digits_1_0.raw");
+    AllRowData = (AliL3DigitRowData*)NData;
+    sprintf(Carry,"/prog/alice/data/Rawdata/1_patch/pp/pileups/event_%d/digits_%d_0.raw",triggerevent,slice);
+    Out->SetBinaryOutput(Carry);
+    cout << "Open File: " << Carry << " to wite PileUp Event" << endl;
+    Out->Memory2CompBinary(176,AllRowData);
+    Out->CloseBinaryOutput();
+    delete Out;
+    delete [] NData;
+  }
+  
+  delete transform;
+}
+
+void QSort(AliL3DigitData **a,Int_t first,Int_t last)
+{
+  //General sorting routine. only sorting the pointers.
+
+  AliL3DigitData *tmp;
+  int i; 
+  int j;
+  
+  while (last - first > 1) {
+    i = first;
+    j = last;
+    for (;;) {
+      while (++i < last && CompareDigits(a[i], a[first]) < 0)
+       ;
+      while (--j > first && CompareDigits(a[j], a[first]) > 0)
+            ;
+         if (i >= j)
+            break;
+
+         tmp  = a[i];
+         a[i] = a[j];
+         a[j] = tmp;
+    }
+      if (j == first) {
+         ++first;
+         continue;
+      }
+      tmp = a[first];
+      a[first] = a[j];
+      a[j] = tmp;
+      if (j - first < last - (j + 1)) {
+         QSort(a, first, j);
+         first = j + 1;   // QSort(j + 1, last);
+      } else {
+         QSort(a, j + 1, last);
+         last = j;        // QSort(first, j);
+      }
+   }
+  
+  
+}
+
+Int_t CompareDigits(AliL3DigitData *a,AliL3DigitData *b)
+{
+
+  if(a->fPad==b->fPad && a->fTime == b->fTime) return 0;
+  
+  if(a->fPad<b->fPad) return -1;
+  if(a->fPad==b->fPad && a->fTime<b->fTime) return -1;
+  
+  return 1;
+  
+}
diff --git a/HLT/exa/MakePileup.h b/HLT/exa/MakePileup.h
new file mode 100644 (file)
index 0000000..2332a9b
--- /dev/null
@@ -0,0 +1,6 @@
+#ifndef Read
+#define Read
+
+void Read2(Int_t triggerevent);
+
+#endif