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

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/
/* $Id$ */
/** @file    AliFMDRawReader.cxx
    @author  Christian Holm Christensen <cholm@nbi.dk>
    @date    Mon Mar 27 12:45:23 2006
    @brief   Class to read raw data 
    @ingroup FMD_rec
*/
//____________________________________________________________________
//
// Class to read ADC values from a AliRawReader object. 
//
// This class uses the AliFMDRawStreamer class to read the ALTRO
// formatted data. 
// 
//          +-------+
//          | TTask |
//          +-------+
//              ^
//              |
//      +-----------------+  <<references>>  +--------------+
//      | AliFMDRawReader |<>----------------| AliRawReader |
//      +-----------------+                  +--------------+
//              |                                  ^
//              | <<uses>>                         |
//              V                                  |
//      +-----------------+      <<uses>>          |
//      | AliFMDRawStream |------------------------+
//      +-----------------+
//              |
//              V
//      +----------------+
//      | AliAltroStream |
//      +----------------+
//
#include <AliLog.h>		// ALILOG_H
#include "AliFMDParameters.h"	// ALIFMDPARAMETERS_H
#include "AliFMDDigit.h"	// ALIFMDDIGIT_H
#include "AliFMDRawStream.h"	// ALIFMDRAWSTREAM_H 
// #include "AliRawReader.h"	// ALIRAWREADER_H 
#include "AliFMDRawReader.h"	// ALIFMDRAWREADER_H 
// #include "AliFMDAltroIO.h"	// ALIFMDALTROIO_H 
// #include <TArrayI.h>		// ROOT_TArrayI
#include <TTree.h>		// ROOT_TTree
#include <TClonesArray.h>	// ROOT_TClonesArray
// #include <iostream>
// #include <iomanip>

//____________________________________________________________________
ClassImp(AliFMDRawReader)
#if 0
  ; // This is here to keep Emacs for indenting the next line
#endif

//____________________________________________________________________
AliFMDRawReader::AliFMDRawReader(AliRawReader* reader, TTree* tree) 
  : TTask("FMDRawReader", "Reader of Raw ADC values from the FMD"),
    fTree(tree),
    fReader(reader), 
    fSampleRate(1)
{
  // Default CTOR
}

//____________________________________________________________________
void
AliFMDRawReader::Exec(Option_t*) 
{
  // Read the data 
  TClonesArray* array = new TClonesArray("AliFMDDigit");
  if (!fTree) {
    AliError("No tree");
    return;
  }
  fTree->Branch("FMD", &array);
  ReadAdcs(array);
  Int_t nWrite = fTree->Fill();
  AliDebug(1, Form("Got a grand total of %d digits, wrote %d bytes to tree", 
		   array->GetEntries(), nWrite));
}


#if 1
//____________________________________________________________________
Bool_t
AliFMDRawReader::ReadAdcs(TClonesArray* array) 
{
  // Read raw data into the digits array, using AliFMDAltroReader. 
  if (!array) {
    AliError("No TClonesArray passed");
    return kFALSE;
  }
  //  if (!fReader->ReadHeader()) {
  //    AliError("Couldn't read header");
  //    return kFALSE;
  //  }
  // Get sample rate 
  AliFMDParameters* pars = AliFMDParameters::Instance();
  AliFMDRawStream input(fReader);

  UShort_t stripMin = 0;
  UShort_t stripMax = 127;
  UShort_t preSamp  = 0;
  
  UInt_t ddl    = 0;
  UInt_t rate   = 0;
  UInt_t last   = 0;
  UInt_t hwaddr = 0;
  // Data array is approx twice the size needed. 
  UShort_t data[2048];
  while (input.ReadChannel(ddl, hwaddr, last, data)) {
    AliDebug(5, Form("Read channel 0x%x of size %d", hwaddr, last));
    UShort_t det, sec, str;
    Char_t   ring;
    if (!pars->Hardware2Detector(ddl, hwaddr, det, ring, sec, str)) {
      AliError(Form("Failed to get detector id from DDL %d "
		    "and hardware address 0x%x", ddl, hwaddr));
      continue;
    }
    rate     = pars->GetSampleRate(det, ring, sec, str);
    stripMin = pars->GetMinStrip(det, ring, sec, str);
    stripMax = pars->GetMaxStrip(det, ring, sec, str);
    AliDebug(5, Form("DDL 0x%04x, address 0x%03x maps to FMD%d%c[%2d,%3d]", 
		       ddl, hwaddr, det, ring, sec, str));
    
    // Loop over the `timebins', and make the digits
    for (size_t i = 0; i < last; i++) {
      if (i < preSamp) continue;
      Int_t    n      = array->GetEntries();
      UShort_t curStr = str + stripMin + i / rate;
      if ((curStr-str) > stripMax) {
	AliError(Form("Current strip is %d but DB says max is %d", 
		      curStr, stripMax));
      }
      AliDebug(5, Form("making digit for FMD%d%c[%2d,%3d] from sample %4d", 
		       det, ring, sec, curStr, i));
      new ((*array)[n]) AliFMDDigit(det, ring, sec, curStr, data[i], 
				    (rate >= 2 ? data[i+1] : 0),
				    (rate >= 3 ? data[i+2] : 0));
      if (rate >= 2) i++;
      if (rate >= 3) i++;
    }
  }
  return kTRUE;
}
#else
//____________________________________________________________________
Bool_t
AliFMDRawReader::ReadAdcs(TClonesArray* array) 
{
  // Read raw data into the digits array, using AliFMDAltroReader. 
  if (!array) {
    AliError("No TClonesArray passed");
    return kFALSE;
  }
  //  if (!fReader->ReadHeader()) {
  //    AliError("Couldn't read header");
  //    return kFALSE;
  //  }
  // Get sample rate 
  AliFMDParameters* pars = AliFMDParameters::Instance();

  // Select FMD DDL's 
  fReader->Select("FMD");

  UShort_t stripMin = 0;
  UShort_t stripMax = 127;
  UShort_t preSamp  = 0;
  
  do {
    UChar_t* cdata;
    if (!fReader->ReadNextData(cdata)) break;
    size_t   nchar = fReader->GetDataSize();
    UShort_t ddl   = fReader->GetDDLID();
    UShort_t rate  = 0;
    AliDebug(1, Form("Reading %d bytes (%d 10bit words) from %d", 
		     nchar, nchar * 8 / 10, ddl));
    // Make a stream to read from 
    std::string str((char*)(cdata), nchar);
    std::istringstream s(str);
    // Prep the reader class.
    AliFMDAltroReader r(s);
    // Data array is approx twice the size needed. 
    UShort_t data[2048], hwaddr, last;
    while (r.ReadChannel(hwaddr, last, data) > 0) {
      AliDebug(5, Form("Read channel 0x%x of size %d", hwaddr, last));
      UShort_t det, sec, str;
      Char_t   ring;
      if (!pars->Hardware2Detector(ddl, hwaddr, det, ring, sec, str)) {
	AliError(Form("Failed to detector id from DDL %d "
		      "and hardware address 0x%x", ddl, hwaddr));
	continue;
      }
      rate     = pars->GetSampleRate(det, ring, sec, str);
      stripMin = pars->GetMinStrip(det, ring, sec, str);
      stripMax = pars->GetMaxStrip(det, ring, sec, str);
      AliDebug(5, Form("DDL 0x%04x, address 0x%03x maps to FMD%d%c[%2d,%3d]", 
		       ddl, hwaddr, det, ring, sec, str));

      // Loop over the `timebins', and make the digits
      for (size_t i = 0; i < last; i++) {
	if (i < preSamp) continue;
	Int_t    n      = array->GetEntries();
	UShort_t curStr = str + stripMin + i / rate;
	if ((curStr-str) > stripMax) {
	  AliError(Form("Current strip is %d but DB says max is %d", 
			curStr, stripMax));
	}
	AliDebug(5, Form("making digit for FMD%d%c[%2d,%3d] from sample %4d", 
			 det, ring, sec, curStr, i));
	new ((*array)[n]) AliFMDDigit(det, ring, sec, curStr, data[i], 
				      (rate >= 2 ? data[i+1] : 0),
				      (rate >= 3 ? data[i+2] : 0));
	if (rate >= 2) i++;
	if (rate >= 3) i++;
	}
	if (r.IsBof()) break;
    }
  } while (true);
  return kTRUE;
}

  
// This is the old method, for comparison.   It's really ugly, and far
// too convoluted. 
//____________________________________________________________________
void
AliFMDRawReader::Exec(Option_t*) 
{
  // Read raw data into the digits array
  //  if (!fReader->ReadHeader()) {
  //    Error("ReadAdcs", "Couldn't read header");
  //    return;
  //  }

  Int_t n = 0;
  TClonesArray* array = new TClonesArray("AliFMDDigit");
  fTree->Branch("FMD", &array);

  // Get sample rate 
  AliFMDParameters* pars = AliFMDParameters::Instance();
  fSampleRate = pars->GetSampleRate(0);

  // Use AliAltroRawStream to read the ALTRO format.  No need to
  // reinvent the wheel :-) 
  AliFMDRawStream input(fReader, fSampleRate);
  // Select FMD DDL's 
  fReader->Select("FMD");
  
  Int_t    oldDDL      = -1;
  Int_t    count       = 0;
  UShort_t detector    = 1; // Must be one here
  UShort_t oldDetector = 0;
  Bool_t   next        = kTRUE;

  // local Cache 
  TArrayI counts(10);
  counts.Reset(-1);
  
  // Loop over data in file 
  while (next) {
    next = input.Next();

    count++; 
    Int_t ddl = fReader->GetDDLID();
    AliDebug(10, Form("Current DDL is %d", ddl));
    if (ddl != oldDDL || input.IsNewStrip() || !next) {
      // Make a new digit, if we have some data (oldDetector == 0,
      // means that we haven't really read anything yet - that is,
      // it's the first time we get here). 
      if (oldDetector > 0) {
	// Got a new strip. 
	AliDebug(10, Form("Add a new strip: FMD%d%c[%2d,%3d] "
			  "(current: FMD%d%c[%2d,%3d])", 
			  oldDetector, input.PrevRing(), 
			  input.PrevSector() , input.PrevStrip(),
			  detector , input.Ring(), input.Sector(), 
			  input.Strip()));
	new ((*array)[n]) AliFMDDigit(oldDetector, 
				      input.PrevRing(), 
				      input.PrevSector(), 
				      input.PrevStrip(), 
				      counts[0], counts[1], counts[2]);
	n++;
#if 0
	AliFMDDigit* digit = 
	  static_cast<AliFMDDigit*>(fFMD->Digits()->
				    UncheckedAt(fFMD->GetNdigits()-1));
#endif 
      }
	
      if (!next) { 
	AliDebug(10, Form("Read %d channels for FMD%d", 
			  count + 1, detector));
	break;
      }
    
    
      // If we got a new DDL, it means we have a new detector. 
      if (ddl != oldDDL) {
	if (detector != 0) 
	  AliDebug(10, Form("Read %d channels for FMD%d", count + 1, detector));
	// Reset counts, and update the DDL cache 
	count       = 0;
	oldDDL      = ddl;
	// Check that we're processing a FMD detector 
	Int_t detId = fReader->GetDetectorID();
	if (detId != (AliDAQ::DetectorID("FMD"))) {
	  AliError(Form("Detector ID %d != %d",
			detId, (AliDAQ::DetectorID("FMD"))));
	  break;
	}
	// Figure out what detector we're deling with 
	oldDetector = detector;
	switch (ddl) {
	case 0: detector = 1; break;
	case 1: detector = 2; break;
	case 2: detector = 3; break;
	default:
	  AliError(Form("Unknown DDL 0x%x for FMD", ddl));
	  return;
	}
	AliDebug(10, Form("Reading ADCs for 0x%x  - That is FMD%d",
			  fReader->GetEquipmentId(), detector));
      }
      counts.Reset(-1);
    }
    
    counts[input.Sample()] = input.Count();
    
    AliDebug(10, Form("ADC of FMD%d%c[%2d,%3d] += %d",
		      detector, input.Ring(), input.Sector(), 
		      input.Strip(), input.Count()));
    oldDetector = detector;
  }
  fTree->Fill();
  return;

}
#endif

//____________________________________________________________________
// 
// EOF
//
Commit	Line	Data
e802be3e	1	/**************************************************************************
	2	* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	3	* *
	4	* Author: The ALICE Off-line Project. *
	5	* Contributors are mentioned in the code where appropriate. *
	6	* *
	7	* Permission to use, copy, modify and distribute this software and its *
	8	* documentation strictly for non-commercial purposes is hereby granted *
	9	* without fee, provided that the above copyright notice appears in all *
	10	* copies and that both the copyright notice and this permission notice *
	11	* appear in the supporting documentation. The authors make no claims *
	12	* about the suitability of this software for any purpose. It is *
	13	* provided "as is" without express or implied warranty. *
	14	**************************************************************************/
e802be3e	15	/* $Id$ */
c2fc1258	16	/** @file AliFMDRawReader.cxx
	17	@author Christian Holm Christensen <cholm@nbi.dk>
	18	@date Mon Mar 27 12:45:23 2006
	19	@brief Class to read raw data
02a27b50	20	@ingroup FMD_rec
c2fc1258	21	*/
e802be3e	22	//____________________________________________________________________
	23	//
	24	// Class to read ADC values from a AliRawReader object.
	25	//
7684b53c	26	// This class uses the AliFMDRawStreamer class to read the ALTRO
	27	// formatted data.
	28	//
	29	// +-------+
	30	// \| TTask \|
	31	// +-------+
	32	// ^
	33	// \|
	34	// +-----------------+ <<references>> +--------------+
	35	// \| AliFMDRawReader \|<>----------------\| AliRawReader \|
	36	// +-----------------+ +--------------+
	37	// \| ^
	38	// \| <<uses>> \|
	39	// V \|
	40	// +-----------------+ <<uses>> \|
	41	// \| AliFMDRawStream \|------------------------+
	42	// +-----------------+
	43	// \|
	44	// V
	45	// +----------------+
	46	// \| AliAltroStream \|
	47	// +----------------+
	48	//
56b1929b	49	#include <AliLog.h> // ALILOG_H
1a1fdef7	50	#include "AliFMDParameters.h" // ALIFMDPARAMETERS_H
e802be3e	51	#include "AliFMDDigit.h" // ALIFMDDIGIT_H
e802be3e	52	#include "AliFMDRawStream.h" // ALIFMDRAWSTREAM_H
6169f936	53	// #include "AliRawReader.h" // ALIRAWREADER_H
e802be3e	54	#include "AliFMDRawReader.h" // ALIFMDRAWREADER_H
c2fc1258	55	// #include "AliFMDAltroIO.h" // ALIFMDALTROIO_H
02a27b50	56	// #include <TArrayI.h> // ROOT_TArrayI
1a1fdef7	57	#include <TTree.h> // ROOT_TTree
1a1fdef7	58	#include <TClonesArray.h> // ROOT_TClonesArray
02a27b50	59	// #include <iostream>
02a27b50	60	// #include <iomanip>
e802be3e	61
e802be3e	62	//____________________________________________________________________
925e6570	63	ClassImp(AliFMDRawReader)
1a1fdef7	64	#if 0
	65	; // This is here to keep Emacs for indenting the next line
	66	#endif
e802be3e	67
e802be3e	68	//____________________________________________________________________
1a1fdef7	69	AliFMDRawReader::AliFMDRawReader(AliRawReader* reader, TTree* tree)
e802be3e	70	: TTask("FMDRawReader", "Reader of Raw ADC values from the FMD"),
1a1fdef7	71	fTree(tree),
	72	fReader(reader),
	73	fSampleRate(1)
e802be3e	74	{
56b1929b	75	// Default CTOR
e802be3e	76	}
e802be3e	77
c2fc1258	78	//____________________________________________________________________
	79	void
	80	AliFMDRawReader::Exec(Option_t*)
	81	{
02a27b50	82	// Read the data
c2fc1258	83	TClonesArray* array = new TClonesArray("AliFMDDigit");
	84	if (!fTree) {
	85	AliError("No tree");
	86	return;
	87	}
	88	fTree->Branch("FMD", &array);
	89	ReadAdcs(array);
	90	Int_t nWrite = fTree->Fill();
	91	AliDebug(1, Form("Got a grand total of %d digits, wrote %d bytes to tree",
	92	array->GetEntries(), nWrite));
	93	}
	94
	95
	96	#if 1
	97	//____________________________________________________________________
	98	Bool_t
	99	AliFMDRawReader::ReadAdcs(TClonesArray* array)
	100	{
	101	// Read raw data into the digits array, using AliFMDAltroReader.
	102	if (!array) {
	103	AliError("No TClonesArray passed");
	104	return kFALSE;
	105	}
d56f2b53	106	// if (!fReader->ReadHeader()) {
	107	// AliError("Couldn't read header");
	108	// return kFALSE;
	109	// }
c2fc1258	110	// Get sample rate
	111	AliFMDParameters* pars = AliFMDParameters::Instance();
	112	AliFMDRawStream input(fReader);
c2fc1258	113
	114	UShort_t stripMin = 0;
	115	UShort_t stripMax = 127;
	116	UShort_t preSamp = 0;
	117
	118	UInt_t ddl = 0;
	119	UInt_t rate = 0;
	120	UInt_t last = 0;
	121	UInt_t hwaddr = 0;
	122	// Data array is approx twice the size needed.
	123	UShort_t data[2048];
	124	while (input.ReadChannel(ddl, hwaddr, last, data)) {
	125	AliDebug(5, Form("Read channel 0x%x of size %d", hwaddr, last));
	126	UShort_t det, sec, str;
	127	Char_t ring;
	128	if (!pars->Hardware2Detector(ddl, hwaddr, det, ring, sec, str)) {
	129	AliError(Form("Failed to get detector id from DDL %d "
	130	"and hardware address 0x%x", ddl, hwaddr));
	131	continue;
	132	}
	133	rate = pars->GetSampleRate(det, ring, sec, str);
	134	stripMin = pars->GetMinStrip(det, ring, sec, str);
	135	stripMax = pars->GetMaxStrip(det, ring, sec, str);
	136	AliDebug(5, Form("DDL 0x%04x, address 0x%03x maps to FMD%d%c[%2d,%3d]",
	137	ddl, hwaddr, det, ring, sec, str));
	138
	139	// Loop over the `timebins', and make the digits
	140	for (size_t i = 0; i < last; i++) {
	141	if (i < preSamp) continue;
	142	Int_t n = array->GetEntries();
	143	UShort_t curStr = str + stripMin + i / rate;
	144	if ((curStr-str) > stripMax) {
	145	AliError(Form("Current strip is %d but DB says max is %d",
	146	curStr, stripMax));
	147	}
	148	AliDebug(5, Form("making digit for FMD%d%c[%2d,%3d] from sample %4d",
	149	det, ring, sec, curStr, i));
	150	new ((*array)[n]) AliFMDDigit(det, ring, sec, curStr, data[i],
	151	(rate >= 2 ? data[i+1] : 0),
	152	(rate >= 3 ? data[i+2] : 0));
	153	if (rate >= 2) i++;
	154	if (rate >= 3) i++;
	155	}
	156	}
	157	return kTRUE;
	158	}
	159	#else
1e8f773e	160	//____________________________________________________________________
d760ea03	161	Bool_t
d760ea03	162	AliFMDRawReader::ReadAdcs(TClonesArray* array)
1e8f773e	163	{
1e8f773e	164	// Read raw data into the digits array, using AliFMDAltroReader.
d760ea03	165	if (!array) {
	166	AliError("No TClonesArray passed");
	167	return kFALSE;
	168	}
d56f2b53	169	// if (!fReader->ReadHeader()) {
	170	// AliError("Couldn't read header");
	171	// return kFALSE;
	172	// }
1e8f773e	173	// Get sample rate
	174	AliFMDParameters* pars = AliFMDParameters::Instance();
	175
	176	// Select FMD DDL's
362c9d61	177	fReader->Select("FMD");
1e8f773e	178
	179	UShort_t stripMin = 0;
	180	UShort_t stripMax = 127;
	181	UShort_t preSamp = 0;
	182
	183	do {
	184	UChar_t* cdata;
	185	if (!fReader->ReadNextData(cdata)) break;
	186	size_t nchar = fReader->GetDataSize();
362c9d61	187	UShort_t ddl = fReader->GetDDLID();
c2fc1258	188	UShort_t rate = 0;
1e8f773e	189	AliDebug(1, Form("Reading %d bytes (%d 10bit words) from %d",
	190	nchar, nchar * 8 / 10, ddl));
	191	// Make a stream to read from
	192	std::string str((char*)(cdata), nchar);
	193	std::istringstream s(str);
	194	// Prep the reader class.
	195	AliFMDAltroReader r(s);
	196	// Data array is approx twice the size needed.
	197	UShort_t data[2048], hwaddr, last;
	198	while (r.ReadChannel(hwaddr, last, data) > 0) {
	199	AliDebug(5, Form("Read channel 0x%x of size %d", hwaddr, last));
	200	UShort_t det, sec, str;
	201	Char_t ring;
	202	if (!pars->Hardware2Detector(ddl, hwaddr, det, ring, sec, str)) {
	203	AliError(Form("Failed to detector id from DDL %d "
	204	"and hardware address 0x%x", ddl, hwaddr));
	205	continue;
	206	}
c2fc1258	207	rate = pars->GetSampleRate(det, ring, sec, str);
	208	stripMin = pars->GetMinStrip(det, ring, sec, str);
	209	stripMax = pars->GetMaxStrip(det, ring, sec, str);
1e8f773e	210	AliDebug(5, Form("DDL 0x%04x, address 0x%03x maps to FMD%d%c[%2d,%3d]",
	211	ddl, hwaddr, det, ring, sec, str));
	212
	213	// Loop over the `timebins', and make the digits
	214	for (size_t i = 0; i < last; i++) {
	215	if (i < preSamp) continue;
d760ea03	216	Int_t n = array->GetEntries();
1e8f773e	217	UShort_t curStr = str + stripMin + i / rate;
	218	if ((curStr-str) > stripMax) {
	219	AliError(Form("Current strip is %d but DB says max is %d",
	220	curStr, stripMax));
	221	}
	222	AliDebug(5, Form("making digit for FMD%d%c[%2d,%3d] from sample %4d",
	223	det, ring, sec, curStr, i));
	224	new ((*array)[n]) AliFMDDigit(det, ring, sec, curStr, data[i],
	225	(rate >= 2 ? data[i+1] : 0),
	226	(rate >= 3 ? data[i+2] : 0));
	227	if (rate >= 2) i++;
	228	if (rate >= 3) i++;
	229	}
	230	if (r.IsBof()) break;
	231	}
	232	} while (true);
d760ea03	233	return kTRUE;
	234	}
	235
	236
	237
1e8f773e	238	// This is the old method, for comparison. It's really ugly, and far
1e8f773e	239	// too convoluted.
e802be3e	240	//____________________________________________________________________
	241	void
	242	AliFMDRawReader::Exec(Option_t*)
	243	{
56b1929b	244	// Read raw data into the digits array
d56f2b53	245	// if (!fReader->ReadHeader()) {
	246	// Error("ReadAdcs", "Couldn't read header");
	247	// return;
	248	// }
e802be3e	249
1a1fdef7	250	Int_t n = 0;
	251	TClonesArray* array = new TClonesArray("AliFMDDigit");
	252	fTree->Branch("FMD", &array);
	253
8f6ee336	254	// Get sample rate
8f6ee336	255	AliFMDParameters* pars = AliFMDParameters::Instance();
362c9d61	256	fSampleRate = pars->GetSampleRate(0);
8f6ee336	257
e802be3e	258	// Use AliAltroRawStream to read the ALTRO format. No need to
	259	// reinvent the wheel :-)
	260	AliFMDRawStream input(fReader, fSampleRate);
	261	// Select FMD DDL's
362c9d61	262	fReader->Select("FMD");
e802be3e	263
	264	Int_t oldDDL = -1;
	265	Int_t count = 0;
	266	UShort_t detector = 1; // Must be one here
	267	UShort_t oldDetector = 0;
	268	Bool_t next = kTRUE;
	269
	270	// local Cache
	271	TArrayI counts(10);
	272	counts.Reset(-1);
	273
	274	// Loop over data in file
	275	while (next) {
	276	next = input.Next();
	277
	278	count++;
	279	Int_t ddl = fReader->GetDDLID();
1e8f773e	280	AliDebug(10, Form("Current DDL is %d", ddl));
e802be3e	281	if (ddl != oldDDL \|\| input.IsNewStrip() \|\| !next) {
	282	// Make a new digit, if we have some data (oldDetector == 0,
	283	// means that we haven't really read anything yet - that is,
	284	// it's the first time we get here).
	285	if (oldDetector > 0) {
	286	// Got a new strip.
	287	AliDebug(10, Form("Add a new strip: FMD%d%c[%2d,%3d] "
	288	"(current: FMD%d%c[%2d,%3d])",
	289	oldDetector, input.PrevRing(),
	290	input.PrevSector() , input.PrevStrip(),
	291	detector , input.Ring(), input.Sector(),
	292	input.Strip()));
1a1fdef7	293	new ((*array)[n]) AliFMDDigit(oldDetector,
	294	input.PrevRing(),
	295	input.PrevSector(),
	296	input.PrevStrip(),
	297	counts[0], counts[1], counts[2]);
	298	n++;
e802be3e	299	#if 0
	300	AliFMDDigit* digit =
	301	static_cast<AliFMDDigit*>(fFMD->Digits()->
	302	UncheckedAt(fFMD->GetNdigits()-1));
	303	#endif
	304	}
	305
	306	if (!next) {
	307	AliDebug(10, Form("Read %d channels for FMD%d",
	308	count + 1, detector));
	309	break;
	310	}
	311
	312
	313	// If we got a new DDL, it means we have a new detector.
	314	if (ddl != oldDDL) {
	315	if (detector != 0)
1e8f773e	316	AliDebug(10, Form("Read %d channels for FMD%d", count + 1, detector));
e802be3e	317	// Reset counts, and update the DDL cache
	318	count = 0;
	319	oldDDL = ddl;
	320	// Check that we're processing a FMD detector
	321	Int_t detId = fReader->GetDetectorID();
362c9d61	322	if (detId != (AliDAQ::DetectorID("FMD"))) {
1e8f773e	323	AliError(Form("Detector ID %d != %d",
362c9d61	324	detId, (AliDAQ::DetectorID("FMD"))));
e802be3e	325	break;
	326	}
	327	// Figure out what detector we're deling with
	328	oldDetector = detector;
	329	switch (ddl) {
	330	case 0: detector = 1; break;
	331	case 1: detector = 2; break;
	332	case 2: detector = 3; break;
	333	default:
1e8f773e	334	AliError(Form("Unknown DDL 0x%x for FMD", ddl));
e802be3e	335	return;
	336	}
	337	AliDebug(10, Form("Reading ADCs for 0x%x - That is FMD%d",
	338	fReader->GetEquipmentId(), detector));
	339	}
	340	counts.Reset(-1);
	341	}
	342
	343	counts[input.Sample()] = input.Count();
	344
	345	AliDebug(10, Form("ADC of FMD%d%c[%2d,%3d] += %d",
	346	detector, input.Ring(), input.Sector(),
	347	input.Strip(), input.Count()));
	348	oldDetector = detector;
	349	}
1a1fdef7	350	fTree->Fill();
e802be3e	351	return;
	352
	353	}
1e8f773e	354	#endif
e802be3e	355
	356	//____________________________________________________________________
	357	//
	358	// EOF
	359	//