Fixes for reading zero-suppressed data. Also fixes to simulated raw

[u/mrichter/AliRoot.git] / FMD / AliFMDRawStream.cxx

diff --git a/FMD/AliFMDRawStream.cxx b/FMD/AliFMDRawStream.cxx
index 6cc5a330e611209f8c409faca134e02c5b583a40..757e5baf20e25aefcbefc3013a462815e1c7c60c 100644 (file)
--- a/FMD/AliFMDRawStream.cxx
+++ b/FMD/AliFMDRawStream.cxx
@@ -26,11 +26,13 @@
 // and the sample rate should be set explicitly. 
 //
 #include "AliFMDRawStream.h"           // ALIFMDRAWSTREAM_H
-#include <AliRawReader.h>              // ALIRAWREADER_H
+// #include <AliRawReader.h>           // ALIRAWREADER_H
 #include "AliFMDParameters.h"
-#include <AliLog.h>
-#include <iomanip>
-#include <iostream>
+// #include <AliLog.h>
+#include "AliFMDDebug.h" // Better debug macros
+// #include <iomanip>
+// #include <iostream>
+#include "AliRawReader.h"
 
 //____________________________________________________________________
 ClassImp(AliFMDRawStream)
@@ -42,40 +44,55 @@ ClassImp(AliFMDRawStream)
 AliFMDRawStream::AliFMDRawStream(AliRawReader* reader) 
   : AliAltroRawStream(reader)
 {
+  // CTOR 
+  reader->Reset();
   fNoAltroMapping = kFALSE;
+  // Select FMD DDL's 
+  SelectRawData("FMD");
 }
 
 //_____________________________________________________________________________
 Bool_t 
 AliFMDRawStream::ReadChannel(UInt_t& ddl, UInt_t& addr, 
-                            UInt_t& len, UShort_t* data)
+                            UInt_t& len, volatile UShort_t* data)
 {
-  UInt_t       prevddl   = 0;
+  // Read one channel and return.   Returns 0 when there's no more
+  // data. 
   Int_t        l         = 0;
   static Int_t last      = 0xFFFF; // 0xFFFF means signal is used
   Bool_t       next      = kTRUE;
   do {
     Int_t signal = last;
     if (last > 0x3FF) {
-      AliDebug(30, Form("Last is 0x%x, so reading a new word", last));
+      AliFMDDebug(30, ("Last is 0x%x, so reading a new word", last));
       next   = Next();
-      if (!next) break;
+      if(!next){
+       AliFMDDebug(15, ("Read word # %d (!next)", l));
+       addr = GetPrevHWAddress();
+       ddl  = GetPrevDDLNumber();
+       len  = l+1; // Need to add one - l points to last valid index
+       last = signal;
+       break;
+      }
       signal = GetSignal();
       if (GetHWAddress() != GetPrevHWAddress() && GetPrevHWAddress() >= 0) {
-       AliDebug(15, Form("New hardware address, was 0x%x, now 0x%x", 
+       AliFMDDebug(15, ("New hardware address, was 0x%x, now 0x%x", 
                          GetPrevHWAddress(), GetHWAddress()));
        addr = GetPrevHWAddress();
-       ddl  = AliFMDParameters::kBaseDDL + prevddl;
-       len  = l+1;
+       ddl  = GetPrevDDLNumber();
+       len  = l+1; // Need to add one - l points to last valid index
        last = signal;
        break;
       }
     }
-    prevddl  = GetPrevDDLNumber();
     Int_t t  = GetTime();
     l        = TMath::Max(l, t);
     data[t]  = signal;
     last     = 0xFFFF;
+#if 0
+    AliFMDDebug(signal > 512 ? 1 : 0, ("Signal @ %d (%d) is %d", 
+                                      time, t, data[t]));
+#endif
   } while (next);
   return next;
 }