2 // Main authors: Matevz Tadel & Alja Mrak-Tadel: 2006, 2007
4 /**************************************************************************
5 * Copyright(c) 1998-2008, ALICE Experiment at CERN, all rights reserved. *
6 * See http://aliceinfo.cern.ch/Offline/AliRoot/License.html for *
7 * full copyright notice. *
8 **************************************************************************/
10 #include "AliEveTPCSectorData.h"
11 #include <AliTPCParamSR.h>
16 //==============================================================================
17 //==============================================================================
18 // AliEveTPCSectorData
19 //==============================================================================
21 //______________________________________________________________________________
23 // Stores data from a fiven TPC sector.
25 // Row addresses grow linearly by radius, there is no separation on
26 // inner/outer segments. The SegmentInfo objects can be used to get
27 // information about low-level segments.
29 // A lot of TPC-sector geometry information is stored as static data.
31 // For accessing data, see for example AliEveTPCSector2DGL::CreateTexture()
35 ClassImp(AliEveTPCSectorData)
37 AliTPCParam* AliEveTPCSectorData::fgParam = 0;
38 Float_t AliEveTPCSectorData::fgZLength = 0;
39 Int_t AliEveTPCSectorData::fgNAllRows = 0;
40 Int_t AliEveTPCSectorData::fgNAllPads = 0;
41 Int_t* AliEveTPCSectorData::fgRowBegs = 0;
43 AliEveTPCSectorData::SegmentInfo AliEveTPCSectorData::fgInnSeg;
44 AliEveTPCSectorData::SegmentInfo AliEveTPCSectorData::fgOut1Seg;
45 AliEveTPCSectorData::SegmentInfo AliEveTPCSectorData::fgOut2Seg;
47 AliEveTPCSectorData::SegmentInfo* AliEveTPCSectorData::fgSegInfoPtrs[3] = {0};
49 /******************************************************************************/
51 void AliEveTPCSectorData::InitStatics()
53 // Initialize static variables.
55 if (fgParam != 0) return;
57 fgParam = new AliTPCParamSR;
58 fgZLength = fgParam->GetZLength(0) + 0.275;
59 fgNAllRows = fgParam->GetNRowLow() + fgParam->GetNRowUp();
61 fgRowBegs = new Int_t[fgNAllRows + 1];
65 for (Int_t i=0; i<fgParam->GetNRowLow(); ++i, ++row)
67 fgRowBegs[row] = fgNAllPads;
68 fgNAllPads += fgParam->GetNPadsLow(i);
70 for (Int_t i=0; i<fgParam->GetNRowUp(); ++i, ++row)
72 fgRowBegs[row] = fgNAllPads;
73 fgNAllPads += fgParam->GetNPadsUp(i);
75 fgRowBegs[fgNAllRows] = fgNAllPads;
78 // Fill SegmentInfos, used by rendering classes.
80 // General paramameters
81 fgInnSeg.fPadWidth = fgParam->GetInnerPadPitchWidth();
82 fgInnSeg.fPadHeight = fgParam->GetInnerPadPitchLength();
83 fgInnSeg.fRLow = fgParam->GetPadRowRadiiLow(0);
84 fgInnSeg.fNRows = fgParam->GetNRowLow();
85 fgInnSeg.fFirstRow = 0;
86 fgInnSeg.fLastRow = fgInnSeg.fNRows - 1;
87 fgInnSeg.fNMaxPads = fgParam->GetNPadsLow(fgInnSeg.fNRows - 1);
88 fgSegInfoPtrs[0] = &fgInnSeg;
90 fgOut1Seg.fPadWidth = fgParam->GetOuterPadPitchWidth();
91 fgOut1Seg.fPadHeight = fgParam->GetOuter1PadPitchLength();
92 fgOut1Seg.fRLow = fgParam->GetPadRowRadiiUp(0);
93 fgOut1Seg.fNRows = fgParam->GetNRowUp1();
94 fgOut1Seg.fFirstRow = fgInnSeg.fNRows;
95 fgOut1Seg.fLastRow = fgOut1Seg.fFirstRow + fgOut1Seg.fNRows - 1;
96 fgOut1Seg.fNMaxPads = fgParam->GetNPadsUp(fgOut1Seg.fNRows - 1);
97 fgSegInfoPtrs[1] = &fgOut1Seg;
99 fgOut2Seg.fPadWidth = fgParam->GetOuterPadPitchWidth();
100 fgOut2Seg.fPadHeight = fgParam->GetOuter2PadPitchLength();
101 fgOut2Seg.fRLow = fgParam->GetPadRowRadiiUp(fgOut1Seg.fNRows);
102 fgOut2Seg.fNRows = fgParam->GetNRowUp() - fgOut1Seg.fNRows;
103 fgOut2Seg.fFirstRow = fgOut1Seg.fLastRow + 1;
104 fgOut2Seg.fLastRow = fgOut2Seg.fFirstRow + fgOut2Seg.fNRows - 1;
105 fgOut2Seg.fNMaxPads = fgParam->GetNPadsUp(fgParam->GetNRowUp() - 1);
106 fgSegInfoPtrs[2] = &fgOut2Seg;
108 // Set stepsize arrays
111 Int_t k=0, npads = fgParam->GetNPadsLow(0);
112 for (Int_t row = 0; row < fgInnSeg.fNRows; ++row)
114 if (fgParam->GetNPadsLow(row) > npads)
116 npads = fgParam->GetNPadsLow(row);
117 fgInnSeg.fYStep[k] = row*fgInnSeg.fPadHeight + fgInnSeg.fRLow;
121 fgInnSeg.fNYSteps = k;
125 Int_t k=0, npads = fgParam->GetNPadsUp(0);
126 for (Int_t row = 0; row < fgOut1Seg.fNRows; ++row)
128 if (fgParam->GetNPadsUp(row) > npads)
130 npads = fgParam->GetNPadsUp(row);
131 fgOut1Seg.fYStep[k] = row*fgOut1Seg.fPadHeight + fgOut1Seg.fRLow ;
135 fgOut1Seg.fNYSteps = k;
139 Int_t k=0, npads = fgParam->GetNPadsUp(fgOut1Seg.fNRows);
140 for (Int_t row = fgOut1Seg.fNRows; row < fgParam->GetNRowUp(); ++row)
142 if (fgParam->GetNPadsUp(row) > npads)
144 npads = fgParam->GetNPadsUp(row);
145 fgOut2Seg.fYStep[k] = (row - fgOut1Seg.fNRows)*fgOut2Seg.fPadHeight + fgOut2Seg.fRLow ;
149 fgOut2Seg.fNYSteps = k;
153 Int_t AliEveTPCSectorData::GetNPadsInRow(Int_t row)
155 // Return number of pads in given row.
157 if (row < 0 || row >= fgNAllRows) return 0;
158 return fgRowBegs[row + 1] - fgRowBegs[row];
161 const AliEveTPCSectorData::SegmentInfo& AliEveTPCSectorData::GetSeg(Int_t seg)
163 // Return reference to segment geometry information.
164 // 0 ~ inner, 1 ~ middle, 2 ~ outer.
166 static const SegmentInfo null;
168 if (seg < 0 || seg > 2)
171 return *fgSegInfoPtrs[seg];
174 /******************************************************************************/
175 // True member functions start here.
176 /******************************************************************************/
178 void AliEveTPCSectorData::NewBlock()
180 // Create new data-block. Position is set to the beginning.
182 fBlocks.push_back(new Short_t[fkBlockSize]);
186 /******************************************************************************/
188 AliEveTPCSectorData::AliEveTPCSectorData(Int_t sector, Int_t bsize) :
189 fSectorID(sector), fNPadsFilled(0), fPads(),
190 fkBlockSize(bsize), fBlockPos(0), fBlocks(),
191 fCurrentRow(0), fCurrentPad(0), fCurrentPos(0), fCurrentStep(0)
195 memset(fPadBuffer,0,2048*sizeof(Short_t));
197 if (fgParam == 0) InitStatics();
199 fPads.assign(fgNAllPads, PadData());
201 fBlockPos = fkBlockSize; // Enforce creation of a new block.
205 AliEveTPCSectorData::~AliEveTPCSectorData()
209 for (std::vector<Short_t*>::iterator b=fBlocks.begin(); b!=fBlocks.end(); ++b)
213 void AliEveTPCSectorData::DropData()
215 // Drop data, deallocate data-blocks.
217 fPads.assign(fgNAllPads, PadData());
218 for (std::vector<Short_t*>::iterator b=fBlocks.begin(); b!=fBlocks.end(); ++b)
221 fBlockPos = fkBlockSize; // Enforce creation of a new block.
224 /******************************************************************************/
226 void AliEveTPCSectorData::Print(Option_t* /*opt*/) const
228 // Print summary information.
230 printf("AliEveTPCSectorData sector=%d, NPadsFilled=%d, NBlocks=%d, BlockPos=%d\n",
231 fSectorID, fNPadsFilled, (Int_t) fBlocks.size(), fBlockPos);
234 /******************************************************************************/
236 void AliEveTPCSectorData::BeginPad(Int_t row, Int_t pad, Bool_t reverseTime)
238 // Begin filling of pad-data as specified with arguments.
249 //printf("begpad for row=%d pad=%d\n buf=%p pos=%d step=%d\n",
250 // fCurrentRow, fCurrentPad,
251 // fPadBuffer, fCurrentPos, fCurrentStep);
254 void AliEveTPCSectorData::EndPad(Bool_t autoPedestal, Short_t threshold)
256 // End filling of pad-data. At this point data is compressed and moved
257 // into the cuurent position in memory block.
260 if (fCurrentStep > 0) {
262 end = fPadBuffer + fCurrentPos;
264 beg = fPadBuffer + fCurrentPos + 2;
265 end = fPadBuffer + 2048;
268 //printf("endpad for row=%d pad=%d\n buf=%p beg=%p end=%p pos=%d step=%d\n",
269 // fCurrentRow, fCurrentPad,
270 // fPadBuffer, beg, end, fCurrentPos, fCurrentStep);
279 array[(val-beg)/2] = *val;
282 Short_t pedestal = TMath::Nint(TMath::Median((end-beg)/2, array));
291 if (rpos[1] >= threshold) {
304 // Compress pad buffer
306 Short_t* spos = rpos;
310 if (rpos >= end || *rpos > t + 1 || t == 0)
314 Short_t n = t - spos[0] + 1;
323 wpos += 3; spos += 3;
331 // Copy buffer to storage, set PadData
333 Short_t len = wpos - beg;
334 if (len > fkBlockSize - fBlockPos)
336 Short_t *dest = fBlocks.back() + fBlockPos;
337 memcpy(dest, beg, len*sizeof(Short_t));
340 PadData& pad = fPads[PadIndex(fCurrentRow, fCurrentPad)];
341 pad.SetDataLength(dest, len);
347 /******************************************************************************/
349 const AliEveTPCSectorData::PadData& AliEveTPCSectorData::GetPadData(Int_t padAddr) const
351 // Get pad-data reference by absolute index.
353 static const PadData kNull;
355 if (padAddr < 0 || padAddr >= fgNAllPads) return kNull;
356 return fPads[padAddr];
359 const AliEveTPCSectorData::PadData& AliEveTPCSectorData::GetPadData(Int_t row, Int_t pad) const
361 // Get pad-data reference by row and pad number.
363 static const PadData kNull;
365 Int_t np = GetNPadsInRow(row);
366 if (np == 0 || pad < 0 || pad >= np) return kNull;
367 return GetPadData(fgRowBegs[row] + pad);
370 AliEveTPCSectorData::PadIterator AliEveTPCSectorData::MakePadIterator(Int_t padAddr, Short_t thr)
372 // Get pad-data iterator by absolute index.
374 return PadIterator(GetPadData(padAddr), thr);
377 AliEveTPCSectorData::PadIterator AliEveTPCSectorData::MakePadIterator(Int_t row, Int_t pad, Short_t thr)
379 // Get pad-data iterator by row and pad number.
381 return PadIterator(GetPadData(row, pad), thr);
384 AliEveTPCSectorData::RowIterator AliEveTPCSectorData::MakeRowIterator(Int_t row, Short_t thr)
388 Short_t npads = GetNPadsInRow(row);
390 return RowIterator(&fPads[fgRowBegs[row]], npads, thr);
392 return RowIterator(0, 0);
395 /******************************************************************************/
396 // AliEveTPCSectorData::PadData
397 /******************************************************************************/
399 void AliEveTPCSectorData::PadData::Print(Option_t* /*opt*/)
401 // Print summary information.
403 printf("addr=%p, len=%hd>\n", (void*)fData, fLength);
404 for (Int_t i=0; i<fLength; ++i)
405 printf(" %3d %hd\n", i, fData[i]);
408 /******************************************************************************/
409 // AliEveTPCSectorData::PadIterator
410 /******************************************************************************/
412 Bool_t AliEveTPCSectorData::PadIterator::Next()
414 // Move iterator to next signal above the iteration threshold.
415 // Returns false when the end of data is reached.
417 if (fPos >= fEnd) return kFALSE;
421 fSignal = *fPos; ++fPos;
429 fNChunk = fPos[1] - 1;
434 return (fSignal > fThreshold) ? kTRUE : Next();
437 void AliEveTPCSectorData::PadIterator::Reset()
439 // Return to the beginning of the pad-data. Must call Next() to get to
440 // the first stored signal.
448 void AliEveTPCSectorData::PadIterator::Reset(const PadData& pd)
450 // Reinitialize to new pad-data. Must call Next() to get to the
451 // first stored signal.
454 fEnd = pd.Data() + pd.Length();
459 void AliEveTPCSectorData::PadIterator::Test()
462 printf(" %3d %d\n", fTime, fSignal);
465 /******************************************************************************/
466 // AliEveTPCSectorData::RowIterator
467 /******************************************************************************/
469 Bool_t AliEveTPCSectorData::RowIterator::NextPad()
471 // Move iterator to next pad.
474 if(fPad >= fNPads) return kFALSE;
475 Reset(fPadArray[fPad]);
479 void AliEveTPCSectorData::RowIterator::ResetRow()
481 // Return to the beginning of the row. Must call NextPad() to get to
487 void AliEveTPCSectorData::RowIterator::ResetRow(const PadData* first, Short_t npads)
489 // Reinitialize to another pad-data array. Must call NextPad() to
490 // get to the zeroth pad.
497 /******************************************************************************/
498 // AliEveTPCSectorData::SegmentInfo
499 /******************************************************************************/
501 //______________________________________________________________________________
503 // Stores geometry data about a segment needed for fast data-access
506 ClassImp(AliEveTPCSectorData::SegmentInfo)
508 AliEveTPCSectorData::SegmentInfo::SegmentInfo() :
511 fPadWidth(0), fPadHeight(0),
512 fRLow(0), fNRows(0), fFirstRow(0), fLastRow(0),
518 memset(fYStep, 0, sizeof(fYStep));