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[u/mrichter/AliRoot.git] / HLT / TRD / AliTRDonlineTrackingDataContainer.cxx
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c7b7f445 1#include <cstdlib>
2#include "TString.h"
3#include "AliHLTLogging.h"
4#include "AliTRDonlineTrackingDataContainer.h"
5
6
7ClassImp(AliTRDonlineTrackingDataContainer)
8
9const Float_t AliTRDonlineTrackingDataContainer::fgkBinWidthY = 160e-4; // 160 um
10
11AliTRDonlineTrackingDataContainer::AliTRDonlineTrackingDataContainer() : AliHLTLogging(),
12 fGtuPtMultiplier(1.),
13 fStoreGtuInfo(kTRUE),
14 fLogPrefix(NULL)
15{
16 fLogPrefix = new TString("");
17 Clear();
18}
19
20AliTRDonlineTrackingDataContainer::AliTRDonlineTrackingDataContainer(const AliTRDonlineTrackingDataContainer& /*cont*/) : AliHLTLogging(),
21 fGtuPtMultiplier(1.),
22 fStoreGtuInfo(kTRUE),
23 fLogPrefix(NULL)
24{
25 fLogPrefix = new TString("");
26 Clear();
27}
28
29AliTRDonlineTrackingDataContainer::~AliTRDonlineTrackingDataContainer(){
30 if (fLogPrefix)
31 delete fLogPrefix;
32 fLogPrefix = NULL;
33}
34
35void AliTRDonlineTrackingDataContainer::Clear(const Option_t*) {
36 memset(fNumTracklets, 0, sizeof(UInt_t)*fgkNumChambers);
37 memset(fNumTracks, 0, sizeof(UInt_t)*fgkNumStacks);
38
39 memset(fSectorTrgWords, 0, sizeof(UInt_t)*fgkNumSectors);
40 memset(fStackTrgWords, 0, sizeof(ULong64_t)*fgkNumSectors*fgkNumStacksPerSector);
41
42 //## todo: only for debugging, may be removed without harm
43// memset(fTrackletWords, 0, sizeof(UInt_t)*fgkNumChambers*fgkMaxTrackletsPerChamber);
44// memset(fTrackletHCId, 0, sizeof(UInt_t)*fgkNumChambers*fgkMaxTrackletsPerChamber);
45// memset(fTrackWords, 0, sizeof(ULong64_t)*fgkNumStacks*fgkMaxTracksPerStack);
46// memset(fTrackExtWords, 0, sizeof(ULong64_t)*fgkNumStacks*fgkMaxTracksPerStack);
47// memset(fTrackTrackletWords, 0, sizeof(UInt_t)*fgkNumStacks*fgkMaxTracksPerStack*fgkNumLayers);
48}
49
50Int_t AliTRDonlineTrackingDataContainer::GetNumTracklets() {
51 Int_t count = 0;
52 for (UShort_t det = 0; det < fgkNumChambers; ++det)
53 count += fNumTracklets[det];
54 return count;
55}
56
6f7c6cc6 57Int_t AliTRDonlineTrackingDataContainer::GetNumTracklets(UInt_t det) {
c7b7f445 58 return fNumTracklets[det];
59}
60
61Int_t AliTRDonlineTrackingDataContainer::GetNumTracks() {
62 Int_t count = 0;
63 for (UShort_t stack = 0; stack < fgkNumStacks; ++stack)
64 count += fNumTracks[stack];
65 return count;
66}
67
6f7c6cc6 68Int_t AliTRDonlineTrackingDataContainer::GetNumTracks(UShort_t stack){
c7b7f445 69 return fNumTracks[stack];
70}
71
6f7c6cc6 72Int_t AliTRDonlineTrackingDataContainer::GetTrackletBinY(UInt_t det, UInt_t trackletIndex) {
c7b7f445 73 UInt_t trackletWord = fTrackletWords[det][trackletIndex];
74 if (trackletWord & 0x1000) {
75 return -((~(trackletWord - 1)) & 0x1fff);
76 }
77 else {
78 return (trackletWord & 0x1fff);
79 }
80}
81
6f7c6cc6 82Int_t AliTRDonlineTrackingDataContainer::GetTrackletBinDy(UInt_t det, UInt_t trackletIndex) {
c7b7f445 83 UInt_t trackletWord = fTrackletWords[det][trackletIndex];
84 if (trackletWord & (1 << 19))
85 return -((~((trackletWord >> 13) - 1)) & 0x7f);
86 else
87 return ((trackletWord >> 13) & 0x7f);
88};
89
6f7c6cc6 90Int_t AliTRDonlineTrackingDataContainer::GetTrackletBinZ(UInt_t det, UInt_t trackletIndex) {
c7b7f445 91 return ((fTrackletWords[det][trackletIndex] >> 20) & 0xf);
92}
93
6f7c6cc6 94Int_t AliTRDonlineTrackingDataContainer::GetTrackletPID(UInt_t det, UInt_t trackletIndex) {
c7b7f445 95 return ((fTrackletWords[det][trackletIndex] >> 24) & 0xff);
96};
97
6f7c6cc6 98Float_t AliTRDonlineTrackingDataContainer::GetTrackletLocalY(UInt_t det, UInt_t trackletIndex) {
c7b7f445 99 return GetTrackletBinY(det, trackletIndex) * fgkBinWidthY;
100}
101
6f7c6cc6 102AliESDTrdTracklet* AliTRDonlineTrackingDataContainer::GetTracklet(UInt_t det, UInt_t trackletIndex) {
c7b7f445 103 AliESDTrdTracklet* trkl = NULL;
104 if ((det < fgkNumChambers) && (trackletIndex < fNumTracklets[det])){
105 trkl = new AliESDTrdTracklet(fTrackletWords[det][trackletIndex], fTrackletHCId[det][trackletIndex], -1);
106 }
107 return trkl;
108}
109
6f7c6cc6 110AliESDTrdTrack* AliTRDonlineTrackingDataContainer::GetTrack(UInt_t stack, UInt_t trackIndex, Bool_t constructTracklets){
c7b7f445 111 AliESDTrdTrack* trk = NULL;
112 if ((stack < fgkNumStacks) && (trackIndex < fNumTracks[stack])){
113 trk = new AliESDTrdTrack();
114 ULong64_t tw = fTrackWords[stack][trackIndex];
115 ULong64_t etw = fTrackWords[stack][trackIndex];
116 trk->SetLayerMask(GetTrackLayerMask(stack, trackIndex));
117 trk->SetA(GetTrackA(stack, trackIndex));
118 trk->SetB( (((tw >> 20) & 0x3ffff) ^ 0x20000) - 0x20000);
119 trk->SetC( (((tw >> 8) & 0xffff) ^ 0x8000) - 0x8000);
120 trk->SetPID(GetTrackPID(stack, trackIndex));
121 trk->SetSector(stack/5);
122 trk->SetStack(stack%5);
123 trk->SetLabel(-3);
124 trk->SetFlags((etw >> 52) & 0x7ff);
125 trk->SetReserved((etw >> 49) & 0x7);
126 trk->SetY((etw >> 36) & 0x1fff);
127 trk->SetTrackletIndex((etw >> 0) & 0x3f, 0);
128 trk->SetTrackletIndex((etw >> 6) & 0x3f, 1);
129 trk->SetTrackletIndex((etw >> 12) & 0x3f, 2);
130 trk->SetTrackletIndex((etw >> 18) & 0x3f, 3);
131 trk->SetTrackletIndex((etw >> 24) & 0x3f, 4);
132 trk->SetTrackletIndex((etw >> 30) & 0x3f, 5);
133
134 if (constructTracklets) {
135 for (UShort_t iLayer = 0; iLayer < fgkNumLayers; ++iLayer){
136 AliESDTrdTracklet * trkl = new AliESDTrdTracklet(GetTrackTrackletWord(stack, trackIndex, iLayer), 2*(stack*6 + iLayer));
137 trk->AddTrackletReference(trkl, iLayer);
138 }
139 }
140
141 } else {
142 HLTError("invalid stack (%d) or track index (%d) in GetTrack", stack, trackIndex);
143 }
144 return trk;
145}
146
6f7c6cc6 147Double_t AliTRDonlineTrackingDataContainer::GetTrackPt(UInt_t stack, UInt_t trackIndex){
c7b7f445 148
149 // calculate pt from a as done in hardware
150 const Int_t maskIdLut[64] = {
151 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0,
152 -1, -1, -1, -1, -1, -1, -1, 1, -1, -1, -1, 2, -1, 3, 4, 5,
153 -1, -1, -1, -1, -1, -1, -1, 6, -1, -1, -1, 7, -1, 8, 9, 10,
154 -1, -1, -1, 11, -1, 12, 13, 14, -1, 15, 16, 17, 18, 19, 20, 21
155 };
156
157 const Int_t c1Lut[32] = {
158 -2371, -2474, -2474, -2474, -2563, -2448, -2578, -2578,
159 -2578, -2670, -2557, -2578, -2578, -2670, -2557, -2578,
160 -2670, -2557, -2763, -2557, -2644, -2523, -1, -1,
161 -1, -1, -1, -1, -1, -1, -1, -1
162 };
163
164 Int_t a = GetTrackA(stack, trackIndex);
165 UShort_t lm = GetTrackLayerMask(stack, trackIndex);
166
167 if (a != 0) {
168 Int_t layerMaskId = maskIdLut[lm];
169 Int_t c1 = c1Lut[layerMaskId];
170 Int_t c1Ext = c1 << 8;
171 Int_t ptRawStage4 = c1Ext / ((a >> 2) != 0 ? (a >> 2) : 1 );
172 Int_t ptRawComb4 = ptRawStage4;
173 Int_t ptExtComb4 = (ptRawComb4 > 0) ? ptRawComb4 + 33 : ptRawComb4 - 30;
174
175 return ((-ptExtComb4/2) / 128.) * fGtuPtMultiplier;
176 }
177 else
178 return 0.;
179
180}
181
6f7c6cc6 182UShort_t AliTRDonlineTrackingDataContainer::GetTrackLayerNum(UInt_t stack, UInt_t trackIndex) {
c7b7f445 183 UShort_t num = 0;
184 UShort_t layerMask = GetTrackLayerMask(stack, trackIndex);
185 for (UShort_t iLayer = 0; iLayer < fgkNumLayers; ++iLayer)
186 if ((layerMask >> iLayer) & 1)
187 num++;
188 return num;
189}
190
6f7c6cc6 191UInt_t AliTRDonlineTrackingDataContainer::GetTrackTrackletWord(UInt_t stack, UInt_t trackIndex, UShort_t layer) {
c7b7f445 192 return fTrackTrackletWords[stack][trackIndex][layer];
193}
194
195
6f7c6cc6 196Int_t AliTRDonlineTrackingDataContainer::GetTrackTrackletBinY(UInt_t stack, UInt_t trackIndex, UShort_t layer) {
c7b7f445 197 UInt_t trackletWord = fTrackTrackletWords[stack][trackIndex][layer];
198 if (trackletWord & 0x1000) {
199 return -((~(trackletWord - 1)) & 0x1fff);
200 }
201 else {
202 return (trackletWord & 0x1fff);
203 }
204}
205
6f7c6cc6 206Int_t AliTRDonlineTrackingDataContainer::GetTrackAddInfo(UShort_t stack, UInt_t trackIndex) {
c7b7f445 207 return fTrackAddInfo[stack][trackIndex];
208}
209
6f7c6cc6 210Float_t AliTRDonlineTrackingDataContainer::GetTrackTrackletLocalY(UInt_t stack, UInt_t trackIndex, UShort_t layer) {
c7b7f445 211 return GetTrackTrackletBinY(stack, trackIndex, layer) * fgkBinWidthY;
212}
213
6f7c6cc6 214Int_t AliTRDonlineTrackingDataContainer::GetTrackTrackletBinZ(UInt_t stack, UInt_t trackIndex, UShort_t layer) {
c7b7f445 215 return ((fTrackTrackletWords[stack][trackIndex][layer] >> 20) & 0xf);
216}
217
6f7c6cc6 218UShort_t AliTRDonlineTrackingDataContainer::GetTrackTrackletPID(UInt_t stack, UInt_t trackIndex, UShort_t layer) {
c7b7f445 219 return ((fTrackTrackletWords[stack][trackIndex][layer] >> 24) & 0xff);
220}
221
6f7c6cc6 222Int_t AliTRDonlineTrackingDataContainer::AddTracklet(UInt_t HCId, UInt_t trackletWord) {
c7b7f445 223 UShort_t det = HCId/2;
224 Int_t pos = fNumTracklets[det]++;
225 fTrackletWords[det][pos] = trackletWord;
226 fTrackletHCId[det][pos] = HCId;
227 return pos;
228}
229
230Int_t AliTRDonlineTrackingDataContainer::AddTracklet(const AliESDTrdTracklet* tracklet) {
231 return AddTracklet(tracklet->GetHCId(), tracklet->GetTrackletWord());
232}
233
6f7c6cc6 234Int_t AliTRDonlineTrackingDataContainer::AddTrack(UShort_t stack,
235 ULong64_t trackWord, ULong64_t extTrackWord,
c7b7f445 236 const UInt_t trackletWords[6], const Int_t addInfo){
237 Int_t pos = fNumTracks[stack]++;
238 fTrackWords[stack][pos] = trackWord;
239 fTrackExtWords[stack][pos] = extTrackWord;
240 fTrackAddInfo[stack][pos] = addInfo;
241 for (UShort_t iLayer = 0; iLayer < fgkNumLayers; ++iLayer){
242 fTrackTrackletWords[stack][pos][iLayer] = trackletWords[iLayer];
243 }
244 return pos;
245}
246
6f7c6cc6 247Int_t AliTRDonlineTrackingDataContainer::AddTrack(const AliESDTrdTrack* track, Int_t addInfo) {
c7b7f445 248
249 UInt_t trackletWords[fgkNumLayers];
250 UShort_t lm = track->GetLayerMask();
251 Bool_t checkOk = kTRUE;
252 for (UShort_t iLayer = 0; iLayer < fgkNumLayers; ++iLayer){
253 if ((lm >> iLayer) & 1){
254 if (track->GetTracklet(iLayer))
255 trackletWords[iLayer] = track->GetTracklet(iLayer)->GetTrackletWord();
256 else
257 checkOk = kFALSE; // inconsistency between layer mask and tracklet pointers: do not use this track
258 } else
259 trackletWords[iLayer] = fgkInvalidTrackletWord;
260 }
261
262 if (checkOk){
263 return AddTrack(track->GetSector()*5 + track->GetStack(),
264 track->GetTrackWord(0), track->GetExtendedTrackWord(0), trackletWords, addInfo);
265 } else {
266 // DbgLog("ERROR", "Ignoring GTU track with inconsistency between layer mask and tracklet pointers");
267 printf("<ERROR> Ignoring GTU track with inconsistency between layer mask and tracklet pointers\n");
268 return -1;
269 }
270
271}
272
6f7c6cc6 273void AliTRDonlineTrackingDataContainer::SetTrackAddInfo(UShort_t stack, UInt_t trackIndex, Int_t addInfo) {
c7b7f445 274 fTrackAddInfo[stack][trackIndex] = addInfo;
275}
276
6f7c6cc6 277void AliTRDonlineTrackingDataContainer::SetGtuPtMultiplierFromMagField(Double_t magField) {
c7b7f445 278 if (magField > 0)
279 fGtuPtMultiplier = -1.;
280 else
281 fGtuPtMultiplier = 1.;
282}
283
6f7c6cc6 284void AliTRDonlineTrackingDataContainer::PrintBuffer(const void* buffer, UInt_t sizeInBytes, const char* identifier) {
c7b7f445 285
286 UInt_t* buf = (UInt_t*)buffer;
287 UInt_t currPos = 0;
288 TString str("");
289 TString ident(identifier);
290
291 HLTDebug("BUFFER DUMP for <%s>", ident.Data());
292
293 while (currPos < sizeInBytes/4){
294
295 str = Form("%06d: 0x%08x ", currPos, buf[currPos]);
296
297 if (currPos == 0){ // leading magic constant
298
299 if (buf[currPos++] == fgkLeadingMagicConst)
300 str += "correct leading magic constant";
301 else
302 str += Form("incorrect leading magic constant, should be 0x%08x",
303 fgkLeadingMagicConst);
304 }
305
306 if (currPos == sizeInBytes/4 - 1){
307
308 if (buf[sizeInBytes/4 - 1] == fgkTrailingMagicConst)
309 str += "correct trailing magic constant";
310 else
311 str += Form("incorrect trailing magic constant, should be 0x%08x",
312 fgkTrailingMagicConst);
313 }
314
315 currPos++;
316
317 HLTDebug(str.Data());
318
319 }
320
321}
322
323void AliTRDonlineTrackingDataContainer::PrintSummary(const char* identifier){
324
325 TString ident(identifier);
326
327 HLTDebug("TRDGM AliTRDonlineTrackingDataContainer <%s> summary: %5d tracklets, %2d tracks, %6ld bytes comp. mem size",
328 ident.Data(), GetNumTracklets(), GetNumTracks(), DataWordsNeeded()*sizeof(UInt_t));
329
330}
331
332inline UInt_t AliTRDonlineTrackingDataContainer::MakeDataHeader(){
333 if (fStoreGtuInfo)
334 return (fgkHeaderTypeData << 28) | (1 << 16) | DataWordsNeeded();
335 else
336 return (fgkHeaderTypeData << 28) | DataWordsNeeded();
337}
338
6f7c6cc6 339inline UInt_t AliTRDonlineTrackingDataContainer::MakeStackHeader(UShort_t stack,
340 Bool_t trackletsPresent,
341 Bool_t tracksPresent,
342 UInt_t size){
c7b7f445 343 return
344 (fgkHeaderTypeStack << 28) |
345 (((tracksPresent) ? 1 : 0) << 27) |
346 (((trackletsPresent) ? 1 : 0) << 26) |
347 ((stack & 0xff) << 16) | (size & 0xffff);
348}
349
6f7c6cc6 350inline Int_t AliTRDonlineTrackingDataContainer::StackFromStackHeader(UInt_t stackHeader) {
c7b7f445 351 return (stackHeader >> 16) & 0xff;
352}
353
6f7c6cc6 354inline UInt_t AliTRDonlineTrackingDataContainer::SizeFromStackHeader(UInt_t stackHeader) {
c7b7f445 355 return stackHeader & 0xffff;
356}
357
6f7c6cc6 358inline UInt_t AliTRDonlineTrackingDataContainer::MakeTrackletHeader(UShort_t halfChamber){
c7b7f445 359 return (fgkHeaderTypeTracklet << 28) | ((halfChamber & 0xfff) << 16) | 0x2;
360}
361
6f7c6cc6 362inline Int_t AliTRDonlineTrackingDataContainer::HCIdFromTrackletHeader(UInt_t trackletHeader) {
c7b7f445 363 return (trackletHeader >> 16) & 0xfff;
364}
365
6f7c6cc6 366inline UInt_t AliTRDonlineTrackingDataContainer::MakeTrackHeader(UShort_t stack){
c7b7f445 367 return (fgkHeaderTypeTrack << 28) | ((stack & 0xff) << 16) | 12;
368}
369
6f7c6cc6 370inline UInt_t AliTRDonlineTrackingDataContainer::MakeGtuHeader(Bool_t storeInfo){
c7b7f445 371 if (storeInfo)
372 return (fgkHeaderTypeGtu << 28) | (1 << 16) | (1 + 18 + 2*90);
373 else
374 return (fgkHeaderTypeGtu << 28) | 1;
375}
376
6f7c6cc6 377inline Bool_t AliTRDonlineTrackingDataContainer::StoreGtuInfoFromDataHeader(UInt_t dataHeader){
c7b7f445 378 return ((dataHeader >> 16) & 1);
379}
380
6f7c6cc6 381inline Bool_t AliTRDonlineTrackingDataContainer::GtuInfoPresentFromGtuHeader(UInt_t gtuHeader){
c7b7f445 382 return ((gtuHeader >> 16) & 1);
383}
384
385inline UInt_t AliTRDonlineTrackingDataContainer::DataWordsNeeded() {
386
387 UInt_t size = 0;
388
389 size += 1; // leading magic word
390 size += 1; // overall data header
391 size += 90; // stack headers
392 size += GetNumTracklets()*(1 + 1); // tracklets (mark + trackword)
393 size += GetNumTracks()*(1 + 4 + 1 + 6); // GTU tracks (mark + trackword[2] + exttrackword[2] + addInfo + 6*trackletword)
394 size += 1; // crosscheck word
395 size += 1; // trailing magic word
396
397 if (fStoreGtuInfo)
398 size += 1 + 18 + 2*90; // trigger header + 18 sector trigger words, 90 stack tracking done words[2]
399 else
400 size += 1; // trigger header only
401
402 return size;
403}
404
6f7c6cc6 405inline UInt_t calcCheck(UInt_t prevCrc, UInt_t c) {
c7b7f445 406 // CCITT 16 bit (X^16 + X^12 + X^5 + 1).
407 UInt_t crc = prevCrc;
408 crc = (unsigned char)(crc >> 8) | (crc << 8);
409 crc ^= c;
410 crc ^= (unsigned char)(crc & 0xff) >> 4;
411 crc ^= (crc << 8) << 4;
412 crc ^= ((crc & 0xff) << 4) << 1;
413 return (crc);
414}
415
416Bool_t AliTRDonlineTrackingDataContainer::Compress(void* &buffer, UInt_t &sizeInBytes){
417
418 // TString ptrInfo("COMPRESS CALLED: [");
419
420 UInt_t bufSize = sizeof(UInt_t)*DataWordsNeeded();
421 UInt_t* buf = (UInt_t*)malloc(bufSize);
422 UInt_t crosscheck = fgkCrosscheckSeed;
423 UInt_t lastStackHeaderPos;
424
425 if (!buf){
426 HLTError("Could not allocate %d bytes for buffer", bufSize);
427 return kFALSE;
428 }
429
430 memset(buf, 0, bufSize);
431 // ptrInfo += Form(" memset(%p, 0, %d) -> %p - %p, ", buf, bufSize, buf, (char*)buf + bufSize);
432 UInt_t currPos = 0;
433 UInt_t det;
434
435 // ptrInfo += Form(" lowest write addr: %p, ", &(buf[currPos]));
436 buf[currPos++] = fgkLeadingMagicConst;
437 buf[currPos++] = MakeDataHeader();
438 for (UShort_t iStack = 0; iStack < 90; ++iStack){
439
440 // add stack info
441 lastStackHeaderPos = currPos;
442 buf[currPos++] = MakeStackHeader(iStack, 1, 1, 0);
443
444 // add tracklet infos
445 for (UShort_t iLayer = 0; iLayer < fgkNumLayers; ++iLayer){
446 det = iStack*fgkNumLayers + iLayer;
447 for (UInt_t iTrkl = 0; iTrkl < fNumTracklets[det]; ++iTrkl){
448 buf[currPos++] = MakeTrackletHeader(fTrackletHCId[det][iTrkl]);
449 buf[currPos++] = fTrackletWords[det][iTrkl];
450 }
451 }
452
453 // add track infos
454 for (UInt_t iTrk = 0; iTrk < fNumTracks[iStack]; ++iTrk){
455 buf[currPos++] = MakeTrackHeader(iStack);
456 buf[currPos++] = fTrackWords[iStack][iTrk] & 0xffffffff;
457 buf[currPos++] = (fTrackWords[iStack][iTrk] >> 32) & 0xffffffff;
458 buf[currPos++] = fTrackExtWords[iStack][iTrk] & 0xffffffff;
459 buf[currPos++] = (fTrackExtWords[iStack][iTrk] >> 32) & 0xffffffff;
460 buf[currPos++] = fTrackAddInfo[iStack][iTrk];
461 for (UShort_t iLayer = 0; iLayer < fgkNumLayers; ++iLayer)
462 buf[currPos++] = fTrackTrackletWords[iStack][iTrk][iLayer];
463 }
464
465 buf[lastStackHeaderPos] = MakeStackHeader(iStack,
466 ((GetNumTracklets() > 0) ? 1 : 0),
467 ((GetNumTracks() > 0) ? 1 : 0),
468 currPos - lastStackHeaderPos); // update size //## todo: check off-by-one issues
469
470 } // loop over all stacks
471
472 // add Gtu header info
473 buf[currPos++] = MakeGtuHeader(fStoreGtuInfo);
474 if (fStoreGtuInfo){
475 // store trigger info from GTU headers
476 for (UShort_t iSector = 0; iSector < fgkNumSectors; ++iSector)
477 buf[currPos++] = fSectorTrgWords[iSector];
478 for (UShort_t iSector = 0; iSector < fgkNumSectors; ++iSector){
479 for (UShort_t iStack = 0; iStack < fgkNumStacksPerSector; ++iStack){
480 buf[currPos++] = fStackTrgWords[iSector][iStack] & 0xffffffff;
481 buf[currPos++] = (fStackTrgWords[iSector][iStack] >> 32) & 0xffffffff;
482 }
483 }
484 }
485
486 // calc crosscheck
487 for (UInt_t ofs = 1; ofs < currPos; ++ofs)
488 crosscheck = calcCheck(crosscheck, buf[ofs]);
489
490 buf[currPos++] = crosscheck;
491 buf[currPos++] = fgkTrailingMagicConst;
492 // ptrInfo += Form(" highest write addr: %p, %d]", &(buf[currPos - 1]), (currPos-1)*4);
493
494 if (sizeof(UInt_t)*currPos != bufSize){
495 HLTError("inconsistent memory layout! (%ld %d)", sizeof(UInt_t)*currPos, bufSize);
496 }
497
498// for (UInt_t ofs = 0; ofs < bufSize/4; ++ofs)
499// printf("%04d: 0x%08x\n", ofs, buf[ofs]);
500
501 buffer = buf;
502 sizeInBytes = bufSize;
503
504 // DbgLog("", ptrInfo.Data());
505
506 return kFALSE;
507}
508
6f7c6cc6 509Bool_t AliTRDonlineTrackingDataContainer::Decompress(const void* buffer, UInt_t sizeInBytes, Bool_t cumulative, Bool_t verbose) {
c7b7f445 510
511 // TString ptrInfo(Form("DECOMPRESS CALLED: [buf: %p, size: %d - %p - %p, ", buffer, sizeInBytes, buffer, (char*)buffer + sizeInBytes));
512
513 UInt_t* buf = (UInt_t*)buffer;
514 UInt_t currPos = 0;
515 UInt_t crosscheck = fgkCrosscheckSeed;
516 UInt_t stackHeader;
517 UInt_t gtuInfoHeader = 0;
518 Int_t stack = 0;
519 UInt_t size = 0;
520
521 if (!cumulative)
522 Clear();
523
524 if (buf[currPos++] != fgkLeadingMagicConst){
525 HLTError("invalid data: leading mark should be 0x%08x, is 0x%08x", fgkLeadingMagicConst, buf[currPos - 1]);
526 return kFALSE;
527 } else if (verbose)
528 HLTError("0x%05d: 0x%08x correct leading mark", currPos, buf[currPos - 1]);
529
530 UInt_t overallDataHeader = buf[currPos++];
531 if ((overallDataHeader >> 28) != fgkHeaderTypeData){
532 HLTError("invalid data header: 0x%08x", overallDataHeader);
533 return kFALSE;
534 } else {
535 fStoreGtuInfo = StoreGtuInfoFromDataHeader(overallDataHeader);
536 }
537
538 if (buf[sizeInBytes/4 - 1] != fgkTrailingMagicConst){
539 HLTError("invalid data: trailing mark should be 0x%08x, is 0x%08x", fgkTrailingMagicConst, buf[sizeInBytes/4 - 1]);
540 return kFALSE;
541 } else if (verbose){
542 HLTDebug("0x%05d: 0x%08x correct trailing mark", sizeInBytes/4 - 1, buf[sizeInBytes/4 - 1]);
543 }
544
545 while (currPos < (sizeInBytes/4) - 2) { // stack-level loop
546
547 stackHeader = buf[currPos++];
548
549 // stack header + encapsulated tracklet and track data
550 if (((stackHeader >> 28) & 0xf) == fgkHeaderTypeStack){
551 stack = StackFromStackHeader(stackHeader);
552 size = SizeFromStackHeader(stackHeader);
553
554 if (verbose){
555 HLTDebug("STACK HEADER: 0x%08x - S%02d-%d, size: %d [checksum: 0x%08x]", stackHeader, stack/5, stack%5, size, buf[sizeInBytes/4 - 2]);
556 }
557
558 while (currPos < sizeInBytes/4 - 2){
559
560 if (((buf[currPos] >> 28) & 0xf) == fgkHeaderTypeTracklet){
561 UInt_t trklHdr = buf[currPos++];
562 UInt_t trklWord = buf[currPos++];
563 AddTracklet(HCIdFromTrackletHeader(trklHdr), trklWord);
564 if (verbose){
565 HLTDebug("Tracklet: 0x%08x 0x%08x", trklHdr, trklWord);
566 }
567 } else if (((buf[currPos] >> 28) & 0xf) == fgkHeaderTypeTrack){
568 UInt_t trkHdr = buf[currPos++];
569 if (trkHdr == 0)
570 HLTError("ERROR", "invalid track header");
571 ULong64_t trackWord = buf[currPos++];
572 trackWord |= ((ULong64_t)buf[currPos++] << 32);
573 ULong64_t extTrackWord = buf[currPos++];
574 extTrackWord |= ((ULong64_t)buf[currPos++] << 32);
575 UInt_t addInfo = buf[currPos++];
576 UInt_t trackletWords[6];
577 for (UShort_t iLayer = 0; iLayer < fgkNumLayers; ++iLayer){
578 trackletWords[iLayer] = buf[currPos++];
579 }
580 AddTrack(stack, trackWord, extTrackWord, trackletWords, addInfo);
581 if (verbose){
582 HLTDebug("GTU track: 0x%016llx 0x%016llx", trackWord, extTrackWord);
583 }
584 } else if (((buf[currPos] >> 28) & 0xf) == fgkHeaderTypeStack){
585 //printf("next stack header\n");
586 break;
587 } else if (((buf[currPos] >> 28) & 0xf) == fgkHeaderTypeGtu){
588 gtuInfoHeader = buf[currPos];
589 break;
590 } else {
591 HLTError("unknown data block: 0x%08x", buf[currPos]);
592 break;
593 }
594 }
595
596 if (gtuInfoHeader)
597 break;
598
599 } else {
600 HLTError("invalid header while analyzing tracking data block: 0x%08x - S%02d-%d, size: %d",
601 stackHeader, stack/5, stack%5, size);
602 break;
603 }
604
605 } // stack-level loop
606
607 // GTU header data loop
608 if (((gtuInfoHeader >> 28) & 0xf) == fgkHeaderTypeGtu) {
609 UInt_t gtuHeader = buf[currPos++];
610 HLTInfo("gtu header: 0x%08x", gtuHeader);
611 if (GtuInfoPresentFromGtuHeader(gtuHeader)){
612 for (UShort_t iSector = 0; iSector < fgkNumSectors; ++iSector)
613 fSectorTrgWords[iSector] = buf[currPos++];
614 for (UShort_t iSector = 0; iSector < fgkNumSectors; ++iSector){
615 for (UShort_t iStack = 0; iStack < fgkNumStacksPerSector; ++iStack){
616 UInt_t low = buf[currPos++];
617 UInt_t high = buf[currPos++];
618 fStackTrgWords[iSector][iStack] = ((ULong64_t)high << 32) | low;
619 }
620 }
621 }
622 } else {
623 HLTError("expected GtuInfoHeader at position %d, but is 0x%08x",
624 currPos, buf[currPos]);
625 }
626
627 if (currPos != (sizeInBytes/4) - 2){
628 HLTError("invalid read position after analyzing tracking data block.");
629 return kFALSE;
630 }
631
632 for (UInt_t ofs = 1; ofs < sizeInBytes/4 - 2; ++ofs)
633 crosscheck = calcCheck(crosscheck, buf[ofs]);
634
635 if (crosscheck != buf[sizeInBytes/4 - 2]){ // compare recalculated checksum with the one in the data
636 HLTError("decompress checksum mismatch: should be 0x%08x, is 0x%08x",
637 crosscheck, buf[sizeInBytes/4 - 2]);
638 return kFALSE;
639 }
640
641 // HLTDebug(ptrInfo.Data());
642
643 return kTRUE;
644
645}