[u/mrichter/AliRoot.git] / CONTAINERS / AliDigits.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.                  *
 **************************************************************************/

/*

$Log$
Revision 1.3  2001/11/24 16:08:09  kowal2
Fatsre algorithms

Revision 1.2  2000/12/20 09:36:46  kowal2
Improvements in algorithms to make the code faster

Revision 1.1  2000/11/01 15:57:13  kowal2
Moved from the TPC directory

Revision 1.4  2000/10/05 16:01:49  kowal2
Corrected for memory leaks.

Revision 1.3  2000/06/30 12:07:49  kowal2
Updated from the TPC-PreRelease branch

Revision 1.2.4.3  2000/06/26 07:39:42  kowal2
Changes to obey the coding rules

Revision 1.2.4.2  2000/06/25 08:38:41  kowal2
Splitted from AliTPCtracking

Revision 1.2.4.1  2000/06/14 16:45:13  kowal2
Improved algorithms. Compiler warnings removed.

Revision 1.2  2000/04/17 09:37:33  kowal2
removed obsolete AliTPCDigitsDisplay.C

Revision 1.1.4.2  2000/04/10 11:37:42  kowal2

Digits handling in a new data structure

*/

/*MI change -- for Rule checker
          -- added copy constructor and assignmet operator 
	  -- new GetSize return size of object in Bytes
          -- added GetDigitSize and GetOverTh function
	  -- added GetNRows, GetNCols function
          -- for Marek -I had it in my code  
*/ 

///////////////////////////////////////////////////////////////////////////////
//                                                                           //
//   Alice  digits array  object  AliDigits                                  //
//                                                                           //
//                                                                           //
//                                                                           //
///////////////////////////////////////////////////////////////////////////////


#include "TClass.h"
#include <iostream.h>
#include "TError.h"
#include "AliSegmentID.h"
#include "AliH2F.h"
#include "AliArrayI.h"
#include "AliArrayS.h"
#include "AliDigits.h"


//_____________________________________________________________________________
//_____________________________________________________________________________
//_____________________________________________________________________________
ClassImp(AliDigits)


AliDigits::AliDigits()
{
  // 
  //default constructor
  fIndex = 0;
  fElements = 0;
  fThreshold =0;
  Invalidate();
}

AliDigits::AliDigits(const AliDigits& digits)
{
  //
  //copy constructor
  fNrows = digits.fNrows;
  fNcols = digits.fNcols;
  fElements = new AliArrayS(*(digits.fElements));
  fIndex = new AliArrayI(*(digits.fIndex));
  fBufType = digits.fBufType;
  fThreshold = digits.fThreshold;
  fNelems    = digits.fNelems;
}

AliDigits & AliDigits::operator =(const AliDigits & digits)
{
 //assignment operator
  fNrows = digits.fNrows;
  fNcols = digits.fNcols;
  if (fElements) delete fElements;
  fElements = new AliArrayS(*(digits.fElements));
  if (fIndex) delete fIndex;
  fIndex = new AliArrayI(*(digits.fIndex));
  fBufType = digits.fBufType;
  fThreshold = digits.fThreshold;
  fNelems    = digits.fNelems; 
  return (*this);
}

AliDigits::~AliDigits()
{
  //
  //default destructor
  if (fIndex !=0 ) {
    delete fIndex;
  }
  if (fElements != 0) {
    delete fElements;
  }
  
  
}


Bool_t AliDigits::OutOfBoundsError(const char *where, Int_t row, Int_t column) 
{
   // Generate an out-of-bounds error. Always returns false.
   ::Error(where, "row %d  col %d out of bounds (size: %d x %d, this: 0x%08x)", 
	   row, column, fNrows, fNcols, this);
   return kFALSE;
}


void AliDigits::Invalidate() 
{ 
  //
  //set default (invalid parameters)
  if (fIndex != 0)  delete  fIndex;
  fIndex = new AliArrayI;
  
  if (fElements!= 0)     delete  fElements;
  
  fElements = new AliArrayS;
  
  fNrows = fNcols =fNelems= -1; 
  fElements->Set(0); 
  fIndex->Set(0); 
  fBufType = -1;
}

void AliDigits::Allocate(Int_t rows, Int_t columns)
{
  //
  //construct empty buffer fDigits with size rows x columns
  Invalidate();
  if (rows <= 0) {
      Error("Allocate", "no of rows has to be positive");
      return;
   }
   if (columns <= 0) {
      Error("Allocate", "no of columns has to be positive");
      return;
   }
  fNrows = rows;
  fNcols=columns;
  fNelems = fNrows * fNcols;
  fElements->Set(fNelems);
  fIndex->Set(fNcols);
  for (Int_t i =0,k=0; i<fNcols;i++,k+=fNrows) 
  (*fIndex)[i]=k;
  fBufType =0;
}


Int_t AliDigits::GetSize()
{
  //
  //return size of object
  //
  Int_t size = sizeof(this);
  if (fIndex!=0) size+= sizeof(fIndex)+fIndex->GetSize()*sizeof(Int_t);
  if (fElements!=0) size+= sizeof(fElements)+fElements->GetSize()*sizeof(Short_t);
  return size;
}

Int_t AliDigits::GetDigitSize() //return total size of pure digit
{
  //
  //return size of PURE DIGITS
  //
  if (fElements==0) return 0;
  else return sizeof(fElements)+fElements->GetSize()*sizeof(Short_t);
}

Int_t AliDigits::GetOverTh(Float_t threshold,Float_t x1, Float_t x2, Float_t y1, Float_t y2)
{
  //
  //return number of digits over threshold
  // 
 if ( (fElements==0) || (fElements->GetSize()<=0)) return 0;
 
 if (x1<=x2) {
    x1=0;
    x2=fNrows;
  }
  if (y1<=y2) {
     y1=0;
     y2=fNcols;
  }
  Int_t over=0;

  Bool_t cont=First();
  for ( cont=First(); cont==kTRUE;cont=Next()) {
    if ( (CurrentRow()<x1) || (CurrentRow()>x2)) continue;
    if ( (CurrentColumn()<y1) || (CurrentColumn()>y2)) continue;
    if (CurrentDigit()>threshold) over++;
  }
  return over;
}


Short_t AliDigits::GetDigit(Int_t row, Int_t column)
{
  //
  // return digit for given row and collumn
  if (fBufType ==0) return GetDigitFast(row,column);
  if (fBufType ==1) return GetDigit1(row,column);

  return 0;
}


void AliDigits::ExpandBuffer()
{  
  //
  //expand buffer to two dimensional array
  if (fBufType<0)  {
    Error("ExpandBuffer", "buffer doesn't exist");
    return;
  }
  if (fBufType==0)      return;
  
  //expanding of buffer type 1
  if (fBufType==1) ExpandBuffer1();
  
  fBufType = 0;
}

void AliDigits::CompresBuffer(Int_t bufferType,Int_t threshold)
{
  //
  //compres buffer according buffertype algorithm
  if (fBufType<0)  {
    Error("CompressBuffer", "buffer doesn't exist");
    return;
  }
  if (fBufType == bufferType) return;
  //
  if (fBufType>0) ExpandBuffer();
  if (fBufType !=0)  {
    Error("CompressBuffer", "buffer doesn't exist");
    return;
  }
  fThreshold = threshold;
  //compress buffer of type 1
  if ( bufferType == 1) CompresBuffer1();//end of compresing bufer of type 1 
}

Bool_t AliDigits::First()
{
  //adjust  first valid current digit
  if (fBufType ==0) return First0();
  if (fBufType ==1) return First1();
  return kFALSE;
}

Bool_t  AliDigits::Next()
{
  //addjust next valid current digit
  if (fBufType ==0) return Next0();
  if (fBufType ==1) return Next1();
  return kFALSE;
}
 
void AliDigits::AcceptHisto(AliH2F * his)
{
  //
  //make digits buffer with value according histograms values
  //for testing purpose  
  Int_t idim =his->GetNbinsX();
  Int_t jdim =his->GetNbinsY();
  if ( (idim<1)|| (jdim<1)) {
    return;
  }
  //allocate proper buffer size
  Allocate(idim,jdim);
  //set digits values
  for (Int_t i = 0; i<idim;i++)    
    for (Int_t j = 0; j<jdim;j++)
      {
        Int_t index = his->GetBin(i+1,j+1);     
        SetDigitFast((Short_t)his->GetBinContent(index),i,j);
      }   
}

AliH2F *  AliDigits::GenerHisto()
{
  //
  //make digits histo 
  char ch[30];
  sprintf(ch,"Segment_%d ",GetID());
  if ( (fNrows<1)|| (fNcols<1)) {
    return 0;
  }
  AliH2F * his  = new AliH2F("Digit histo",ch,fNrows,0,fNrows,fNcols,0,fNcols);
  ExpandBuffer();
  //set histogram  values
  for (Int_t i = 0; i<fNrows;i++)    
    for (Int_t j = 0; j<fNcols;j++)
        his->Fill(i,j,GetDigitFast(i,j));
  return his;
}

AliH2F *AliDigits::DrawDigits(const char *option,Float_t x1, Float_t x2, Float_t y1, Float_t y2)
{
  //
  //draw digits in given array
  //
  AliH2F *h2f = GenerHisto();
  if (x1>=0) {
      AliH2F *h2fsub = h2f->GetSubrange2d(x1,x2,y1,y2);
      delete h2f;
      h2f=h2fsub;
  }
  if (h2f==0) return 0;
  if (option!=0) h2f->Draw(option);
  else h2f->Draw();
  return h2f;  
}

void AliDigits::ExpandBuffer1()
{
  //
  //expand buffer of type to twodimensional array
  Int_t i,k;
  fNelems = fNrows*fNcols;
  Short_t * buf = new Short_t[fNelems];
  memset(buf,0,fNelems*sizeof(Short_t)); //MI change - 4.12.2000
  fIndex->Set(fNcols);
  for (i =0,k=0 ;i<fNcols;i++,k+=fNrows) (*fIndex)[i]=k;
  Int_t col=0;
  Int_t row = 0;
  Int_t n=fElements->fN;
  for (i=0;i<n;i++){
    //oposite signa means how many unwrited (under threshold) values
    if ((*fElements)[i]<0) row-=fElements->At(i); 
    else {
      buf[(*fIndex)[col]+row]=fElements->At(i);
      row++;
    }
    if (row==fNrows) {
      row=0;
      col++;
    }else 
      if (row>fNrows){
	Invalidate();
	return;
      }      
  }
  fElements->Adopt(fNelems,buf);    
}

void AliDigits::CompresBuffer1()
{
  //
  //compres buffer according  algorithm 1
  //
  AliArrayS  buf;  //lets have the nearly the "worst case"
  buf.Set(fNelems);
  AliArrayI  index;
  index.Set(fNcols);
  Int_t icurrent=-1;
  Int_t izero;
  Short_t * cbuff = fElements->GetArray();  //MI change

  for (Int_t col = 0; col<fNcols; col++){      
    index[col]=icurrent+1;//set collumn pointer
    izero = 0;  //reset zer counter at the begining of the column
    for (Int_t row = 0; row< fNrows;row++){
      //if under threshold
      //if (GetDigitFast(row,col)<=fThreshold)  izero++;
      if (*cbuff<=fThreshold)  izero++;

      else{
	if (izero>0) {
	  //if we have currently izero count under threshold
	  icurrent++;	  
	  if (icurrent>=buf.fN) buf.Expand(icurrent*2);
	  buf[icurrent]= -izero;  //write how many under zero
	  izero = 0;
	} //end of reseting izero
	icurrent++;
	if (icurrent>=buf.fN) buf.Expand(icurrent*2);
	//buf[icurrent] = GetDigitFast(row,col);	    
	buf[icurrent] = *cbuff;	    
      }//if signal bigger then threshold	
       cbuff++;
    } //end of loop over rows
    if (izero>0) {
      icurrent++;	  
      if (icurrent>=buf.fN) buf.Expand(icurrent*2);
      buf[icurrent]= -izero;  //write how many under zero
    }
  }//end of lopping over digits
  buf.Expand(icurrent+1);
  (*fElements)=buf;
  fNelems = fElements->fN;
  fBufType = 1;
  (*fIndex) =index;
  //end of compresing bufer of type 1 
}


Bool_t AliDigits::First0()
{
  //
  //first for the buffer type 0
  fCurrentRow = -1;
  fCurrentCol = -1;
  fCurrentIndex = -1;
  Int_t i;
  for (i=0; (( i<fNelems) && (fElements->At(i)<=fThreshold));i++);  //MI1211
  if (i == fNelems) return kFALSE;
  fCurrentCol =i/fNrows;
  fCurrentRow =i%fNrows;
  fCurrentIndex = i;
  return kTRUE;	
}

Bool_t AliDigits::Next0()
{
  //
  //next for the buffer type 0
  //
  if (fCurrentIndex<0) return kFALSE;  // if we didn't adjust first 
  Int_t i;
  for (i=fCurrentIndex+1; ( (i<fNelems) && (fElements->At(i)<=fThreshold) ) ;i++);
  if (i >= fNelems)  {
    fCurrentIndex = -1;
    return kFALSE;
  }
  fCurrentCol =i/fNrows;
  fCurrentRow =i%fNrows;
  fCurrentIndex = i;
  return kTRUE;	
}

Bool_t AliDigits::First1()
{
  //
  //first for the buffer type 1
  fCurrentRow = -1;
  fCurrentCol = 0;
  fCurrentIndex = -1;
  Int_t i;
  for (i=0; i<fNelems; i++){
    if (fElements->At(i) < 0) fCurrentRow-=fElements->At(i);
    else      
      fCurrentRow++;
    if (fCurrentRow>=fNrows) {
       fCurrentCol++;
       fCurrentRow-=fNrows;
    }
    if (fElements->At(i)>fThreshold) break;
  }
  fCurrentIndex = i;
  if (fCurrentIndex>=0&&i<fNelems) return kTRUE;
  fCurrentRow =-1;
  fCurrentCol =-1;
  return kFALSE;	
}

Bool_t AliDigits::Next1()
{
  //
  //next for the buffer type 1
  if (fCurrentIndex<0) return kFALSE;  // if we didn't adjust first 
  Int_t i;
  for (i=fCurrentIndex+1; i<fNelems;i++){
    if (fElements->At(i) < 0) fCurrentRow-=fElements->At(i);
    else      
      fCurrentRow++;
    if (fCurrentRow>=fNrows) {
      fCurrentCol++;
      fCurrentRow-=fNrows;
    }
    if (fElements->At(i)>fThreshold) break;
  }
  fCurrentIndex = i;
  if ( (i>=0) && (i<fNelems) ) return kTRUE;
  fCurrentRow =-1;
  fCurrentCol =-1;
  return kFALSE;
}

Short_t AliDigits::GetDigit1(Int_t row, Int_t column)
{
  //
  //return digit for given row and column  the buffer type 1
  //no control performed
  
  Int_t i,n2;
  if ( (column+1)>=fNcols) n2 = fNelems;
  else
    n2 = fIndex->At(column+1);
  Int_t irow = 0; //current row    
 
  for (i=fIndex->At(column); ( (i<n2) && (irow<row) );i++){
    if (fElements->At(i) < 0) irow-=fElements->At(i);
    else      
      irow++;
  }
  if ( irow == row ) return fElements->At(i);
  return -1;
}
Commit	Line	Data
a46e9031	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	**************************************************************************/
	15
	16	/*
	17
	18	$Log$
a1681743	19	Revision 1.3 2001/11/24 16:08:09 kowal2
	20	Fatsre algorithms
	21
51a4705b	22	Revision 1.2 2000/12/20 09:36:46 kowal2
	23	Improvements in algorithms to make the code faster
	24
557a9086	25	Revision 1.1 2000/11/01 15:57:13 kowal2
	26	Moved from the TPC directory
	27
a46e9031	28	Revision 1.4 2000/10/05 16:01:49 kowal2
	29	Corrected for memory leaks.
	30
	31	Revision 1.3 2000/06/30 12:07:49 kowal2
	32	Updated from the TPC-PreRelease branch
	33
	34	Revision 1.2.4.3 2000/06/26 07:39:42 kowal2
	35	Changes to obey the coding rules
	36
	37	Revision 1.2.4.2 2000/06/25 08:38:41 kowal2
	38	Splitted from AliTPCtracking
	39
	40	Revision 1.2.4.1 2000/06/14 16:45:13 kowal2
	41	Improved algorithms. Compiler warnings removed.
	42
	43	Revision 1.2 2000/04/17 09:37:33 kowal2
	44	removed obsolete AliTPCDigitsDisplay.C
	45
	46	Revision 1.1.4.2 2000/04/10 11:37:42 kowal2
	47
	48	Digits handling in a new data structure
	49
	50	*/
	51
	52	/*MI change -- for Rule checker
	53	-- added copy constructor and assignmet operator
	54	-- new GetSize return size of object in Bytes
	55	-- added GetDigitSize and GetOverTh function
	56	-- added GetNRows, GetNCols function
	57	-- for Marek -I had it in my code
	58	*/
	59
	60	///////////////////////////////////////////////////////////////////////////////
	61	// //
	62	// Alice digits array object AliDigits //
	63	// //
	64	// //
	65	// //
	66	///////////////////////////////////////////////////////////////////////////////
	67
	68
	69	#include "TClass.h"
	70	#include <iostream.h>
	71	#include "TError.h"
	72	#include "AliSegmentID.h"
	73	#include "AliH2F.h"
	74	#include "AliArrayI.h"
	75	#include "AliArrayS.h"
	76	#include "AliDigits.h"
	77
	78
	79
	80	//_____________________________________________________________________________
	81	//_____________________________________________________________________________
	82	//_____________________________________________________________________________
	83	ClassImp(AliDigits)
	84
	85
	86	AliDigits::AliDigits()
	87	{
	88	//
	89	//default constructor
	90	fIndex = 0;
	91	fElements = 0;
92	fThreshold =0;
93	Invalidate();
94	}
95
96	AliDigits::AliDigits(const AliDigits& digits)
97	{
98	//
99	//copy constructor
100	fNrows = digits.fNrows;
101	fNcols = digits.fNcols;
102	fElements = new AliArrayS(*(digits.fElements));
103	fIndex = new AliArrayI(*(digits.fIndex));
104	fBufType = digits.fBufType;
105	fThreshold = digits.fThreshold;
106	fNelems = digits.fNelems;
107	}
108
109	AliDigits & AliDigits::operator =(const AliDigits & digits)
110	{
111	//assignment operator
112	fNrows = digits.fNrows;
113	fNcols = digits.fNcols;
114	if (fElements) delete fElements;
115	fElements = new AliArrayS(*(digits.fElements));
116	if (fIndex) delete fIndex;
117	fIndex = new AliArrayI(*(digits.fIndex));
118	fBufType = digits.fBufType;
119	fThreshold = digits.fThreshold;
120	fNelems = digits.fNelems;
121	return (*this);
122	}
123
124	AliDigits::~AliDigits()
125	{
126	//
127	//default destructor
128	if (fIndex !=0 ) {
129	delete fIndex;
130	}
131	if (fElements != 0) {
132	delete fElements;
133	}
134
135
136	}
137
138
139	Bool_t AliDigits::OutOfBoundsError(const char *where, Int_t row, Int_t column)
140	{
141	// Generate an out-of-bounds error. Always returns false.
142	::Error(where, "row %d col %d out of bounds (size: %d x %d, this: 0x%08x)",
143	row, column, fNrows, fNcols, this);
144	return kFALSE;
145	}
146
147
148	void AliDigits::Invalidate()
149	{
150	//
151	//set default (invalid parameters)
152	if (fIndex != 0) delete fIndex;
153	fIndex = new AliArrayI;
154
155	if (fElements!= 0) delete fElements;
156
157	fElements = new AliArrayS;
158
159	fNrows = fNcols =fNelems= -1;
160	fElements->Set(0);
161	fIndex->Set(0);
162	fBufType = -1;
163	}
164
165	void AliDigits::Allocate(Int_t rows, Int_t columns)
166	{
167	//
168	//construct empty buffer fDigits with size rows x columns
169	Invalidate();
170	if (rows <= 0) {
171	Error("Allocate", "no of rows has to be positive");
172	return;
173	}
174	if (columns <= 0) {
175	Error("Allocate", "no of columns has to be positive");
176	return;
177	}
178	fNrows = rows;
179	fNcols=columns;
180	fNelems = fNrows * fNcols;
181	fElements->Set(fNelems);
182	fIndex->Set(fNcols);
183	for (Int_t i =0,k=0; i<fNcols;i++,k+=fNrows)
184	(*fIndex)[i]=k;
185	fBufType =0;
186	}
187
188
189	Int_t AliDigits::GetSize()
190	{
191	//
192	//return size of object
193	//
194	Int_t size = sizeof(this);
195	if (fIndex!=0) size+= sizeof(fIndex)+fIndex->GetSize()*sizeof(Int_t);
196	if (fElements!=0) size+= sizeof(fElements)+fElements->GetSize()*sizeof(Short_t);
197	return size;
198	}
199
200	Int_t AliDigits::GetDigitSize() //return total size of pure digit
201	{
202	//
203	//return size of PURE DIGITS
204	//
205	if (fElements==0) return 0;
206	else return sizeof(fElements)+fElements->GetSize()*sizeof(Short_t);
207	}
208
209	Int_t AliDigits::GetOverTh(Float_t threshold,Float_t x1, Float_t x2, Float_t y1, Float_t y2)
210	{
211	//
212	//return number of digits over threshold
213	//
214	if ( (fElements==0) \|\| (fElements->GetSize()<=0)) return 0;
215
216	if (x1<=x2) {
217	x1=0;
218	x2=fNrows;
219	}
220	if (y1<=y2) {
221	y1=0;
222	y2=fNcols;
223	}
224	Int_t over=0;
225
226	Bool_t cont=First();
227	for ( cont=First(); cont==kTRUE;cont=Next()) {
228	if ( (CurrentRow()<x1) \|\| (CurrentRow()>x2)) continue;
229	if ( (CurrentColumn()<y1) \|\| (CurrentColumn()>y2)) continue;
230	if (CurrentDigit()>threshold) over++;
231	}
232	return over;
233	}
234
235
236	Short_t AliDigits::GetDigit(Int_t row, Int_t column)
237	{
238	//
239	// return digit for given row and collumn
240	if (fBufType ==0) return GetDigitFast(row,column);
241	if (fBufType ==1) return GetDigit1(row,column);
242
243	return 0;
244	}
245
246
247	void AliDigits::ExpandBuffer()
248	{
249	//
250	//expand buffer to two dimensional array
251	if (fBufType<0) {
252	Error("ExpandBuffer", "buffer doesn't exist");
253	return;
254	}
255	if (fBufType==0) return;
256
257	//expanding of buffer type 1
258	if (fBufType==1) ExpandBuffer1();
259
260	fBufType = 0;
261	}
262
263	void AliDigits::CompresBuffer(Int_t bufferType,Int_t threshold)
264	{
265	//
266	//compres buffer according buffertype algorithm
267	if (fBufType<0) {
268	Error("CompressBuffer", "buffer doesn't exist");
269	return;
270	}
271	if (fBufType == bufferType) return;
272	//
273	if (fBufType>0) ExpandBuffer();
274	if (fBufType !=0) {
275	Error("CompressBuffer", "buffer doesn't exist");
276	return;
277	}
278	fThreshold = threshold;
279	//compress buffer of type 1
280	if ( bufferType == 1) CompresBuffer1();//end of compresing bufer of type 1
281	}
282
283	Bool_t AliDigits::First()
284	{
285	//adjust first valid current digit
286	if (fBufType ==0) return First0();
287	if (fBufType ==1) return First1();
288	return kFALSE;
289	}
290
291	Bool_t AliDigits::Next()
292	{
293	//addjust next valid current digit
294	if (fBufType ==0) return Next0();
295	if (fBufType ==1) return Next1();
296	return kFALSE;
297	}
298
299	void AliDigits::AcceptHisto(AliH2F * his)
300	{
301	//
302	//make digits buffer with value according histograms values
303	//for testing purpose
304	Int_t idim =his->GetNbinsX();
305	Int_t jdim =his->GetNbinsY();
306	if ( (idim<1)\|\| (jdim<1)) {
307	return;
308	}
309	//allocate proper buffer size
310	Allocate(idim,jdim);
311	//set digits values
312	for (Int_t i = 0; i<idim;i++)
313	for (Int_t j = 0; j<jdim;j++)
314	{
315	Int_t index = his->GetBin(i+1,j+1);
316	SetDigitFast((Short_t)his->GetBinContent(index),i,j);
317	}
318	}
319
320	AliH2F * AliDigits::GenerHisto()
321	{
322	//
323	//make digits histo
324	char ch[30];
325	sprintf(ch,"Segment_%d ",GetID());
326	if ( (fNrows<1)\|\| (fNcols<1)) {
327	return 0;
328	}
329	AliH2F * his = new AliH2F("Digit histo",ch,fNrows,0,fNrows,fNcols,0,fNcols);
330	ExpandBuffer();
331	//set histogram values
332	for (Int_t i = 0; i<fNrows;i++)
333	for (Int_t j = 0; j<fNcols;j++)
334	his->Fill(i,j,GetDigitFast(i,j));
335	return his;
336	}
337
338	AliH2F AliDigits::DrawDigits(const char option,Float_t x1, Float_t x2, Float_t y1, Float_t y2)
339	{
340	//
341	//draw digits in given array
342	//
343	AliH2F *h2f = GenerHisto();
344	if (x1>=0) {
345	AliH2F *h2fsub = h2f->GetSubrange2d(x1,x2,y1,y2);
346	delete h2f;
347	h2f=h2fsub;
348	}
349	if (h2f==0) return 0;
350	if (option!=0) h2f->Draw(option);
351	else h2f->Draw();
352	return h2f;
353	}
354
355	void AliDigits::ExpandBuffer1()
356	{
357	//
358	//expand buffer of type to twodimensional array
359	Int_t i,k;
360	fNelems = fNrows*fNcols;
361	Short_t * buf = new Short_t[fNelems];
557a9086	362	memset(buf,0,fNelems*sizeof(Short_t)); //MI change - 4.12.2000
a46e9031	363	fIndex->Set(fNcols);
	364	for (i =0,k=0 ;i<fNcols;i++,k+=fNrows) (*fIndex)[i]=k;
	365	Int_t col=0;
	366	Int_t row = 0;
	367	Int_t n=fElements->fN;
	368	for (i=0;i<n;i++){
	369	//oposite signa means how many unwrited (under threshold) values
	370	if ((*fElements)[i]<0) row-=fElements->At(i);
	371	else {
	372	buf[(*fIndex)[col]+row]=fElements->At(i);
	373	row++;
	374	}
	375	if (row==fNrows) {
	376	row=0;
	377	col++;
	378	}else
	379	if (row>fNrows){
	380	Invalidate();
	381	return;
	382	}
	383	}
	384	fElements->Adopt(fNelems,buf);
	385	}
51a4705b	386
a46e9031	387	void AliDigits::CompresBuffer1()
	388	{
	389	//
	390	//compres buffer according algorithm 1
	391	//
	392	AliArrayS buf; //lets have the nearly the "worst case"
	393	buf.Set(fNelems);
	394	AliArrayI index;
	395	index.Set(fNcols);
	396	Int_t icurrent=-1;
	397	Int_t izero;
51a4705b	398	Short_t * cbuff = fElements->GetArray(); //MI change
51a4705b	399
a46e9031	400	for (Int_t col = 0; col<fNcols; col++){
	401	index[col]=icurrent+1;//set collumn pointer
	402	izero = 0; //reset zer counter at the begining of the column
	403	for (Int_t row = 0; row< fNrows;row++){
	404	//if under threshold
51a4705b	405	//if (GetDigitFast(row,col)<=fThreshold) izero++;
	406	if (*cbuff<=fThreshold) izero++;
	407
a46e9031	408	else{
	409	if (izero>0) {
	410	//if we have currently izero count under threshold
	411	icurrent++;
	412	if (icurrent>=buf.fN) buf.Expand(icurrent*2);
	413	buf[icurrent]= -izero; //write how many under zero
	414	izero = 0;
	415	} //end of reseting izero
	416	icurrent++;
	417	if (icurrent>=buf.fN) buf.Expand(icurrent*2);
51a4705b	418	//buf[icurrent] = GetDigitFast(row,col);
	419	buf[icurrent] = *cbuff;
	420	}//if signal bigger then threshold
	421	cbuff++;
a46e9031	422	} //end of loop over rows
	423	if (izero>0) {
	424	icurrent++;
	425	if (icurrent>=buf.fN) buf.Expand(icurrent*2);
	426	buf[icurrent]= -izero; //write how many under zero
	427	}
	428	}//end of lopping over digits
	429	buf.Expand(icurrent+1);
	430	(*fElements)=buf;
	431	fNelems = fElements->fN;
	432	fBufType = 1;
	433	(*fIndex) =index;
	434	//end of compresing bufer of type 1
	435	}
	436
	437
	438
	439	Bool_t AliDigits::First0()
	440	{
	441	//
	442	//first for the buffer type 0
	443	fCurrentRow = -1;
	444	fCurrentCol = -1;
	445	fCurrentIndex = -1;
	446	Int_t i;
51a4705b	447	for (i=0; (( i<fNelems) && (fElements->At(i)<=fThreshold));i++); //MI1211
a46e9031	448	if (i == fNelems) return kFALSE;
	449	fCurrentCol =i/fNrows;
	450	fCurrentRow =i%fNrows;
	451	fCurrentIndex = i;
	452	return kTRUE;
	453	}
	454
	455	Bool_t AliDigits::Next0()
	456	{
	457	//
	458	//next for the buffer type 0
	459	//
	460	if (fCurrentIndex<0) return kFALSE; // if we didn't adjust first
	461	Int_t i;
	462	for (i=fCurrentIndex+1; ( (i<fNelems) && (fElements->At(i)<=fThreshold) ) ;i++);
	463	if (i >= fNelems) {
	464	fCurrentIndex = -1;
	465	return kFALSE;
	466	}
	467	fCurrentCol =i/fNrows;
	468	fCurrentRow =i%fNrows;
	469	fCurrentIndex = i;
	470	return kTRUE;
	471	}
	472
	473	Bool_t AliDigits::First1()
	474	{
	475	//
	476	//first for the buffer type 1
	477	fCurrentRow = -1;
	478	fCurrentCol = 0;
	479	fCurrentIndex = -1;
	480	Int_t i;
	481	for (i=0; i<fNelems; i++){
	482	if (fElements->At(i) < 0) fCurrentRow-=fElements->At(i);
	483	else
	484	fCurrentRow++;
	485	if (fCurrentRow>=fNrows) {
	486	fCurrentCol++;
	487	fCurrentRow-=fNrows;
	488	}
	489	if (fElements->At(i)>fThreshold) break;
	490	}
	491	fCurrentIndex = i;
a1681743	492	if (fCurrentIndex>=0&&i<fNelems) return kTRUE;
a46e9031	493	fCurrentRow =-1;
	494	fCurrentCol =-1;
	495	return kFALSE;
	496	}
	497
	498	Bool_t AliDigits::Next1()
	499	{
	500	//
	501	//next for the buffer type 1
	502	if (fCurrentIndex<0) return kFALSE; // if we didn't adjust first
	503	Int_t i;
	504	for (i=fCurrentIndex+1; i<fNelems;i++){
	505	if (fElements->At(i) < 0) fCurrentRow-=fElements->At(i);
	506	else
	507	fCurrentRow++;
	508	if (fCurrentRow>=fNrows) {
	509	fCurrentCol++;
	510	fCurrentRow-=fNrows;
	511	}
	512	if (fElements->At(i)>fThreshold) break;
	513	}
	514	fCurrentIndex = i;
	515	if ( (i>=0) && (i<fNelems) ) return kTRUE;
	516	fCurrentRow =-1;
	517	fCurrentCol =-1;
	518	return kFALSE;
	519	}
	520
	521	Short_t AliDigits::GetDigit1(Int_t row, Int_t column)
	522	{
	523	//
	524	//return digit for given row and column the buffer type 1
	525	//no control performed
	526
	527	Int_t i,n2;
	528	if ( (column+1)>=fNcols) n2 = fNelems;
	529	else
	530	n2 = fIndex->At(column+1);
	531	Int_t irow = 0; //current row
	532
	533	for (i=fIndex->At(column); ( (i<n2) && (irow<row) );i++){
	534	if (fElements->At(i) < 0) irow-=fElements->At(i);
	535	else
	536	irow++;
	537	}
	538	if ( irow == row ) return fElements->At(i);
	539	return -1;
	540	}
	541