Updates

[u/mrichter/AliRoot.git] / MUON / AliMUONRegionalTriggerBoard.cxx

diff --git a/MUON/AliMUONRegionalTriggerBoard.cxx b/MUON/AliMUONRegionalTriggerBoard.cxx
index 556eb9350c82317344f0007dc96cb9916a93cf5c..ef620d23fa5f6d5523f00589e22635ab6abc6987 100644 (file)
--- a/MUON/AliMUONRegionalTriggerBoard.cxx
+++ b/MUON/AliMUONRegionalTriggerBoard.cxx
@@ -21,9 +21,9 @@
 /// - entry are local board responses
 /// - output is 12-bit word
 /// - algorithm is similar to the global one
-/// \todo Change member functions comments in capital letters to normal text
 ///
 /// \author Rachid Guernane (LPCCFd)
+/// Corrected by Christian Finck (Subatech)
 //-----------------------------------------------------------------------------
 
 #include "AliMUONRegionalTriggerBoard.h"
@@ -34,19 +34,25 @@
 
 #include <Riostream.h>
 
+using std::endl;
+using std::cout;
 /// \cond CLASSIMP
 ClassImp(AliMUONRegionalTriggerBoard)
 /// \endcond
 
 //___________________________________________
 AliMUONRegionalTriggerBoard::AliMUONRegionalTriggerBoard()
+  : AliMUONTriggerBoard(),
+    fMask(0x0)   
 {
 /// Default constructor
    for (Int_t i=0; i<16; i++) fLocalResponse[i] = 0;
 }
 
 //___________________________________________
-AliMUONRegionalTriggerBoard::AliMUONRegionalTriggerBoard(const char *name, Int_t a) : AliMUONTriggerBoard(name, a)
+AliMUONRegionalTriggerBoard::AliMUONRegionalTriggerBoard(const char *name, Int_t a) 
+  : AliMUONTriggerBoard(name, a),
+    fMask(0x0)   
 {
 /// Standard constructor
    for (Int_t i=0; i<16; i++) fLocalResponse[i] = 0;
@@ -61,22 +67,33 @@ AliMUONRegionalTriggerBoard::~AliMUONRegionalTriggerBoard()
 //___________________________________________
 void AliMUONRegionalTriggerBoard::Response()
 {
-/// RESPONSE IS GIVEN FOLLOWING THE REGIONAL ALGORITHM
+/// response is given following the regional algorithm
+// output from local trigger algorithm
+// [+, -] * [Hpt, Lpt]
+// transformed to [+, -, US, LS] * [Hpt, Lpt]
 
-  Int_t t[16];
+  if ( IsNull() ) return; // Do nothing if all local responses are null
 
-   for (Int_t i=0;i<16;i++) t[i] = fLocalResponse[i] & fMask[i];
+  Int_t t[16];
 
+   for (Int_t i = 0; i < 16; ++i)
+   {
+     if ((fMask >> i) & 0x1)
+      t[i] = fLocalResponse[i];
+     else
+       t[i] = 0;
+   }
+   
    Int_t rank = 8;
 
-   for (Int_t i=0;i<4;i++)
+   for (Int_t i = 0; i < 4; ++i)
    {
       Int_t ip = 0;
       
-      for (Int_t j=0;j<rank;j++)
+      for (Int_t j = 0; j < rank; ++j)
       {
          UShort_t lthres = Algo(t[2*j],t[2*j+1],"LPT",i);
-
+                
          UShort_t hthres = Algo(t[2*j],t[2*j+1],"HPT",i); hthres <<= 4;
 
          t[ip] = lthres | hthres;
@@ -91,19 +108,23 @@ void AliMUONRegionalTriggerBoard::Response()
 }
 
 //___________________________________________
-UShort_t AliMUONRegionalTriggerBoard::Algo(UShort_t i, UShort_t j, char *thres, Int_t level)
+UShort_t AliMUONRegionalTriggerBoard::Algo(UShort_t i, UShort_t j, const char *thres, Int_t level)
 {
-/// IMPLEMENTATION OF THE REGIONAL ALGORITHM
-/// SIMILAR TO THE GLOBAL ALGORITHM EXCEPT FOR THE
-/// INPUT LAYER
+/// implementation of the regional algorithm
+/// similar to the global algorithm except for the
+/// input layer
 
+/// level = 0  a ,b = local response = Hpt (+|-) | Lpt (+|-)    
+/// level > 0  a ,b = reg  response  =  Hpt (+|-|us|ls) |  Lpt (+|-|us|ls)    
+   
   TBits a(8), b(8); a.Set(8,&i); b.Set(8,&j);
 
    TBits trg1(2), trg2(2), trg(2);
 
    if (!strcmp(thres,"LPT"))
    {
-      if (!level)
+  
+      if (!level) 
       {         
          trg1[0] = a[0]; trg1[1] = a[1]; 
          trg2[0] = b[0]; trg2[1] = b[1];
@@ -138,13 +159,17 @@ UShort_t AliMUONRegionalTriggerBoard::Algo(UShort_t i, UShort_t j, char *thres,
    {
        if (!strcmp(thres,"LPT"))
       {
-         trgLS1[0] = a[1]; trgUS1[0] = a[0]; 
-         trgLS2[0] = b[1]; trgUS2[0] = b[0];
+         //trgLS1[0] = a[1]; trgUS1[0] = a[0]; 
+         //trgLS2[0] = b[1]; trgUS2[0] = b[0];
+         trgLS1[0] = a[0]; trgUS1[0] = a[1]; 
+         trgLS2[0] = b[0]; trgUS2[0] = b[1];
       }
       else
       {
-         trgLS1[0] = a[5]; trgUS1[0] = a[4]; 
-         trgLS2[0] = b[5]; trgUS2[0] = b[4];         
+         //trgLS1[0] = a[5]; trgUS1[0] = a[4]; 
+         //trgLS2[0] = b[5]; trgUS2[0] = b[4];         
+         trgLS1[0] = a[4]; trgUS1[0] = a[5]; 
+         trgLS2[0] = b[4]; trgUS2[0] = b[5];         
       }
    }
 
@@ -156,21 +181,21 @@ UShort_t AliMUONRegionalTriggerBoard::Algo(UShort_t i, UShort_t j, char *thres,
    
    TBits v(4);
    
-   v[0] = trgUS[0];
-   v[1] = trgLS[0];
+   //v[0] = trgUS[0]; 
+   //v[1] = trgLS[0];
+   v[0] = trgLS[0]; 
+   v[1] = trgUS[0];
    v[2] = trg[0];
    v[3] = trg[1];
-   
    UShort_t rv = 0;
    v.Get(&rv);
-
    return rv;
 }
 
 //___________________________________________
 void AliMUONRegionalTriggerBoard::Scan(Option_t*) const
 {
-/// SCAN LOCAL BOARD ENTRIES 
+/// scan local board entries 
 
   for (Int_t i=0; i<16; i++) 
    {
@@ -182,18 +207,32 @@ void AliMUONRegionalTriggerBoard::Scan(Option_t*) const
    }
    
 }
-
 //___________________________________________
-void AliMUONRegionalTriggerBoard::Mask(Int_t index, UShort_t mask)
+void AliMUONRegionalTriggerBoard::Mask(UShort_t mask)
 {
-/// MASK ENTRY index
+/// mask entry index
 
-  if ( index>=0 && index < 16 ) 
-  {
-    fMask[index]=mask;
-  }
-  else
-  {
-    AliError(Form("Index %d out of bounds (max %d)",index,16));
+    fMask = mask;
+}
+
+//___________________________________________
+Bool_t AliMUONRegionalTriggerBoard::IsNull()
+{
+  /// Check if all local response are null
+  for (Int_t i=0; i<16; i++) {
+    if ( fLocalResponse[i] ) return kFALSE;
   }
+  return kTRUE;
+}
+
+
+//___________________________________________
+void AliMUONRegionalTriggerBoard::Reset()
+{
+  /// Reset board
+
+  for (Int_t i=0; i<16; ++i) fLocalResponse[i] = 0;
+
+  fResponse = 0;
+  
 }