X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=FMD%2FAliFMDRawWriter.cxx;h=acb8687a36cd234a98fc584f5f23f2a29f774671;hb=7212566e88c272f5d3ecece0fcc02b82f119624f;hp=3c6222c16045c57e79bd74cb3287e80d4c1c1b1b;hpb=e802be3eafd0ff72856d4497226c183f6a363dfc;p=u%2Fmrichter%2FAliRoot.git diff --git a/FMD/AliFMDRawWriter.cxx b/FMD/AliFMDRawWriter.cxx index 3c6222c1604..acb8687a36c 100644 --- a/FMD/AliFMDRawWriter.cxx +++ b/FMD/AliFMDRawWriter.cxx @@ -12,34 +12,67 @@ * about the suitability of this software for any purpose. It is * * provided "as is" without express or implied warranty. * **************************************************************************/ - /* $Id$ */ - +/** @file AliFMDRawWriter.cxx + @author Christian Holm Christensen + @date Mon Mar 27 12:45:56 2006 + @brief Class to write raw data +*/ //____________________________________________________________________ // // Class to write ADC values to a raw data file // -#include "AliLog.h" // ALILOG_H +// This class writes FMD Raw data to a file. The sample rate (number +// of times the ALTRO ADC samples each pre-amp. channel - that is, +// data from a single strip), can be set via SetSampleRate. +// +// Zero-suppression can be enabled by calling SetThreshold with a +// non-zero argument. ADC values less than the value set will not be +// written to output. Note, that if you use zero-suppression, you +// need to explicitly set the sample rate when reading back the data +// with AliFMDRawReader. +// +// This class uses the AliAltroBuffer class to write the data in the +// ALTRO format. See the Exec member function for more information on +// that format. +// +// #include // ALILOG_H +#include "AliFMDDebug.h" // Better debug macros +#include // ALILOADER_H +#include // ALIALTROBUFFER_H #include "AliFMD.h" // ALIFMD_H +#include "AliFMDParameters.h" // ALIFMDPARAMETERS_H #include "AliFMDDigit.h" // ALIFMDDIGIT_H #include "AliFMDRawWriter.h" // ALIFMDRAWREADER_H -#include "AliAltroBuffer.h" // ALIALTROBUFFER_H -#include "AliLoader.h" // ALILOADER_H -#include "TArrayI.h" // ROOT_TArrayI +#include "AliFMDAltroMapping.h" // ALIFMDALTROMAPPING_H +// #include "AliFMDAltroIO.h" // ALIFMDALTROWRITER_H +#include // ROOT_TArrayI +#include // ROOT_TArrayI +#include // ROOT_TArrayI #include // ROOT_TClonesArray +// #include +#include "AliDAQ.h" //____________________________________________________________________ -ClassImp(AliFMDRawWriter); +ClassImp(AliFMDRawWriter) +#if 0 + ; // This is here to keep Emacs for indenting the next line +#endif //____________________________________________________________________ AliFMDRawWriter::AliFMDRawWriter(AliFMD* fmd) : TTask("FMDRawWriter", "Writer of Raw ADC values from the FMD"), - fFMD(fmd) + fFMD(fmd), + fSampleRate(0), + fChannelsPerAltro(0), + fThreshold(0) { - SetSampleRate(); + // CTOR + AliFMDDebug(5, ("Created AliFMDRawWriter object")); } + //____________________________________________________________________ void AliFMDRawWriter::Exec(Option_t*) @@ -82,9 +115,9 @@ AliFMDRawWriter::Exec(Option_t*) // 10-bit word, and the samples are grouped into 40-bit blocks // // +------------------------------------+ - // | S(n) | S(n-1) | S(n-2) | S(n-3) | + // | S(1) | S(2) | S(3) | S(4) | // | ... | ... | ... | ... | - // | S(2) | S(1) | AA | AA | + // | S(n) | T(n) | n+2 | 2AA | // +------------------------------------+ // Counts + possible filler // @@ -93,17 +126,17 @@ AliFMDRawWriter::Exec(Option_t*) // words, packed into 40-bits. // // +------------------------------------+ - // | # words | start | sector | ring | + // | 2AAA | Len | A | Address | // +------------------------------------+ // Trailer // // Note, that this method assumes that the digits are ordered. // AliLoader* loader = fFMD->GetLoader(); - loader->LoadDigits(); + loader->LoadDigits("READ"); TTree* digitTree = loader->TreeD(); if (!digitTree) { - Error("Digits2Raw", "no digit tree"); + AliError("no digit tree"); return; } @@ -111,156 +144,324 @@ AliFMDRawWriter::Exec(Option_t*) fFMD->SetTreeAddress(); TBranch* digitBranch = digitTree->GetBranch(fFMD->GetName()); if (!digitBranch) { - Error("Digits2Raw", "no branch for %s", fFMD->GetName()); + AliError(Form("no branch for %s", fFMD->GetName())); return; } digitBranch->SetAddress(&digits); Int_t nEvents = Int_t(digitTree->GetEntries()); + AliFMDDebug(5, ("Got a total of %5d events from tree", nEvents)); for (Int_t event = 0; event < nEvents; event++) { fFMD->ResetDigits(); digitTree->GetEvent(event); - Int_t nDigits = digits->GetEntries(); - if (nDigits < 1) continue; + // Write out the digits + WriteDigits(digits); + } + loader->UnloadDigits(); + delete digits; +} +#if 1 +//____________________________________________________________________ +void +AliFMDRawWriter::WriteDigits(TClonesArray* digits) +{ + // WRite an array of digits to disk file + Int_t nDigits = digits->GetEntries(); + if (nDigits < 1) return; + AliFMDDebug(5, ("Got a total of %5d digits from tree", nDigits)); - UShort_t prevDetector = 0; - Char_t prevRing = '\0'; - UShort_t prevSector = 0; - // UShort_t prevStrip = 0; + AliFMDParameters* pars = AliFMDParameters::Instance(); + UShort_t threshold = 0; + UInt_t prevddl = 0xFFFF; + UInt_t prevaddr = 0xFFF; + // UShort_t prevStrip = 0; + + // Which channel number in the ALTRO channel we're at + UShort_t nWords = 0; + UShort_t preSamples = 0; + UShort_t sampleRate = 0; + + // A buffer to hold 1 ALTRO channel - Normally, one ALTRO channel + // holds 128 VA1_ALICE channels, sampled at a rate of `sampleRate' + TArrayI data(pars->GetChannelsPerAltro() * 8); + TArrayF peds(pars->GetChannelsPerAltro() * 8); + TArrayF noise(pars->GetChannelsPerAltro() * 8); - // The first seen strip number for a channel - UShort_t startStrip = 0; - - // Which channel number in the ALTRO channel we're at - UShort_t offset = 0; + // The Altro buffer + AliAltroBufferV3* altro = 0; + + Int_t totalWords = 0; + Int_t nCounts = 0; + + // Loop over the digits in the event. Note, that we assume the + // the digits are in order in the branch. If they were not, we'd + // have to cache all channels before we could write the data to + // the ALTRO buffer, or we'd have to set up a map of the digits. + UShort_t oldDet = 1000; + for (Int_t i = 0; i < nDigits; i++) { + // Get the digit + AliFMDDigit* digit = static_cast(digits->At(i)); + UShort_t det = digit->Detector(); + Char_t ring = digit->Ring(); + UShort_t sector = digit->Sector(); + UShort_t strip = digit->Strip(); + UShort_t ddl, addr, time; - // How many times the ALTRO Samples one VA1_ALICE channel - Int_t sampleRate = 1; + AliFMDDebug(15, ("Processing digit # %5d FMD%d%c[%2d,%3d]", + i, det, ring, sector, strip)); + threshold = pars->GetZeroSuppression(det, ring, sector, strip); + sampleRate = pars->GetSampleRate(det, ring, sector, strip); + preSamples = pars->GetPreSamples(det, ring, sector, strip); - // A buffer to hold 1 ALTRO channel - Normally, one ALTRO channel - // holds 128 VA1_ALICE channels, sampled at a rate of `sampleRate' - TArrayI channel(128 * sampleRate); + if (det != oldDet) { + AliFMDDebug(5, ("Got new detector: %d (was %d)", det, oldDet)); + oldDet = det; + } + AliFMDDebug(15, ("Sample rate is %d", sampleRate)); - // The Altro buffer - AliAltroBuffer* altro = 0; + for (UShort_t j = 0; j < sampleRate; j++) { + if (!pars->Detector2Hardware(det,ring,sector,strip,j,ddl,addr,time)){ + AliError(Form("Failed to get hardware address for FMD%d%c[%2d,%3d]-%d", + det, ring, sector, strip, j)); + continue; + } - // Loop over the digits in the event. Note, that we assume the - // the digits are in order in the branch. If they were not, we'd - // have to cache all channels before we could write the data to - // the ALTRO buffer, or we'd have to set up a map of the digits. - for (Int_t i = 0; i < nDigits; i++) { - // Get the digit - AliFMDDigit* digit = static_cast(digits->At(i)); - - UShort_t det = digit->Detector(); - Char_t ring = digit->Ring(); - UShort_t sector = digit->Sector(); - UShort_t strip = digit->Strip(); - if (det != prevDetector) { - AliDebug(10, Form("FMD: New DDL, was %d, now %d", - AliFMD::kBaseDDL + prevDetector - 1, - AliFMD::kBaseDDL + det - 1)); + AliFMDDebug(10, ("FMD%d%c[%2d,%3d]-%d-> 0x%x/0x%x/%04d", + det, ring, sector, strip, j, ddl, addr, time)); + if (addr != prevaddr) { + // Flush a channel to output + AliFMDDebug(5, ("Now hardware address 0x%x from FMD%d%c[%2d,%3d]-%d" + "(b: 0x%02x, a: 0x%01x, c: 0x%02x, t: %04d), " + "flushing old channel at 0x%x with %d words", + addr, det, ring, sector, strip, j, + (addr >> 7), (addr >> 4) & 0x7, addr & 0xf, + time, prevaddr, nWords)); + totalWords += nWords; + ZeroSuppress(data.fArray, nWords, peds.fArray, noise.fArray, threshold); + if (altro) altro->WriteChannel(prevaddr,nWords,data.fArray,threshold); + data.Reset(-1); + peds.Reset(0); + noise.Reset(0); + nWords = 0; + prevaddr = addr; + } + if (ddl != prevddl) { + AliFMDDebug(10, ("FMD: New DDL, was %d, now %d", prevddl, ddl)); // If an altro exists, delete the object, flushing the data to // disk, and closing the file. if (altro) { // When the first argument is false, we write the real // header. - AliDebug(10, Form("New altro: Write channel at %d Strip: %d " - "Sector: %d Ring: %d", - i, startStrip, prevSector, prevRing)); - // TPC to FMD translations - // - // TPC FMD - // ----------+----------- - // pad | strip - // row | sector - // sector | ring - // - altro->WriteChannel(Int_t(startStrip), - Int_t(prevSector), - Int_t((prevRing == 'I' ? 0 : 1)), - channel.fN, channel.fArray, 0); + AliFMDDebug(15, ("Closing output")); altro->Flush(); altro->WriteDataHeader(kFALSE, kFALSE); delete altro; altro = 0; } - - prevDetector = det; + prevddl = ddl; // Need to open a new DDL! - Int_t ddlId = AliFMD::kBaseDDL + det - 1; - TString filename(Form("%s_%d.ddl", fFMD->GetName(), ddlId)); - - AliDebug(10, Form("New altro buffer with DDL file %s", - filename.Data())); - AliDebug(10, Form("New altro at %d", i)); + TString filename(AliDAQ::DdlFileName(fFMD ? fFMD->GetName() : "FMD", ddl)); + AliFMDDebug(5, ("New altro buffer with DDL file %s", filename.Data())); // Create a new altro buffer - a `1' as the second argument // means `write mode' - altro = new AliAltroBuffer(filename.Data(), 1); - + altro = new AliAltroBufferV3(filename.Data()); + altro->SetMapping(pars->GetAltroMap()); // Write a dummy (first argument is true) header to the DDL // file - later on, when we close the file, we write the real // header altro->WriteDataHeader(kTRUE, kFALSE); + } + + // Get the pedestal value + peds[time] = pars->GetPedestal(det, ring, sector, strip); + noise[time] = pars->GetPedestalWidth(det, ring, sector, strip); - // Figure out the sample rate - if (fSampleRate > 0) sampleRate = fSampleRate; - else { - if (digit->Count2() >= 0) sampleRate = 2; - if (digit->Count3() >= 0) sampleRate = 3; + // Store the counts of the ADC in the channel buffer + AliFMDDebug(15, ("Storing FMD%d%c[%02d,%03d]-%d in timebin %d (%d)", + det, ring, sector, strip, j, time, preSamples)); + data[time] = digit->Count(j); + nWords++; + nCounts++; + if (time == preSamples) { + AliFMDDebug(15, ("Filling in %4d for %d presamples", + data[time], preSamples)); + for (int k = 0; k < preSamples; k++) { + peds[k] = peds[time]; + noise[k] = noise[time]; + data[k] = data[time]; } - - channel.Set(128 * sampleRate); - offset = 0; - prevRing = ring; - prevSector = sector; - startStrip = strip; + nWords += preSamples; } - else if (offset == 128 - || digit->Ring() != prevRing - || digit->Sector() != prevSector) { - // Force a new Altro channel - AliDebug(10, Form("Flushing channel to disk because %s", - (offset == 128 ? "channel is full" : - (ring != prevRing ? "new ring up" : - "new sector up")))); - AliDebug(10, Form("New Channel: Write channel at %d Strip: %d " - "Sector: %d Ring: %d", - i, startStrip, prevSector, prevRing)); - altro->WriteChannel(Int_t(startStrip), - Int_t(prevSector), - Int_t((prevRing == 'I' ? 0 : 1)), - channel.fN, channel.fArray, 0); - // Reset and update channel variables - channel.Reset(0); - offset = 0; - startStrip = strip; - prevRing = ring; - prevSector = sector; + } + } + // Finally, we need to close the final ALTRO buffer if it wasn't + // already + if (altro) { + ZeroSuppress(data.fArray, nWords, peds.fArray, noise.fArray, threshold); + if (nWords > 0) altro->WriteChannel(prevaddr,nWords,data.fArray,threshold); + altro->Flush(); + altro->WriteDataHeader(kFALSE, kFALSE); + delete altro; + } + AliFMDDebug(5, ("Wrote a total of %d words for %d counts", + nWords, nCounts)); +} +//____________________________________________________________________ +void +AliFMDRawWriter::ZeroSuppress(Int_t*& data, Int_t nWords, + const Float_t* peds, + const Float_t* noise, UShort_t threshold) const +{ + // Simulate the ALTRO zero-suppression filter. The data passed in + // the first array is modified, such that all suppressed channels + // are set to some value below threshold. + // + // If threshold == 0 zero suppression is considered disabled, and no + // action is taken. + if (threshold <= 0) return; + + // const Short_t width = 3; + // If fPedSubtract is false, compare data-(ped+f*noise), if true + // always modify data by -(ped+f*noise), and force negative values + // to zero. + Bool_t pedSubtract = AliFMDParameters::Instance()->IsZSPedSubtract(); + UShort_t pre = AliFMDParameters::Instance()->GetZSPreSamples(); + UShort_t post = AliFMDParameters::Instance()->GetZSPostSamples(); + Float_t factor = AliFMDParameters::Instance()->GetPedestalFactor(); + + TArrayC mask(nWords+1); + for (Short_t i = 0; i < nWords; i++) { + Float_t val = data[i] - peds[i] - factor * noise[i]; + if (val < 0.5) val = 0; + if (pedSubtract) data[i] = Int_t(val) & 0x3FF; + + mask[i] = (val > threshold ? 1 : 0); + AliFMDDebug(10, ("Comparing sample %d %d-%f-%f*%f=%f to %d -> %s", + i, data[i], peds[i], factor, noise[i], val, threshold, + (mask[i] ? "above" : "below"))); + } + + for (Short_t i = 0; i < nWords; i++) { + if (mask[i]) { // Signal above, so do nothing + AliFMDDebug(10, ("Sample %d, above", i)); + if (i < nWords-1 && !mask[i+1]) { + // After a valid sample. Increase the pointer to the next + // possible data, thereby skipping over the post-samples + AliFMDDebug(10, ("At sample %d, next is below, skipping %d to %d", + i, post, i+post)); + i += post; } + continue; + } + + Short_t lookahead = TMath::Min(Short_t(nWords), Short_t(i+pre)); + AliFMDDebug(10, ("Sample %d, below, look to %d", i, lookahead)); + if (mask[lookahead] && pre > 0) { + AliFMDDebug(10, ("Sample %d is a pre-sample to %d", i, lookahead)); + // We're in a presample, so don't modify the data, and increase + // counter by the number of pre-samples + i += pre-1; + continue; + } + + // This sample must be surpressed + data[i] = threshold - 1; + } +} - // Store the counts of the ADC in the channel buffer - channel[offset * sampleRate] = digit->Count1(); - if (sampleRate > 1) - channel[offset * sampleRate + 1] = digit->Count2(); - if (sampleRate > 2) - channel[offset * sampleRate + 2] = digit->Count3(); - offset++; +#else +//____________________________________________________________________ +void +AliFMDRawWriter::WriteDigits(TClonesArray* digits) +{ + Int_t nDigits = digits->GetEntries(); + if (nDigits < 1) return; + + AliFMDParameters* pars = AliFMDParameters::Instance(); + AliFMDAltroWriter* writer = 0; + Int_t sampleRate = -1; + UShort_t hwaddr = 0; + UShort_t ddl = 0; + std::ofstream* file = 0; + Int_t ret = 0; + for (Int_t i = 0; i < nDigits; i++) { + // Get the digit + AliFMDDigit* digit = static_cast(digits->At(i)); + UInt_t thisDDL, thisHwaddr; + UShort_t det = digit->Detector(); + Char_t ring = digit->Ring(); + UShort_t sector = digit->Sector(); + UShort_t strip = digit->Strip(); + if (!pars->Detector2Hardware(det,ring,sector,strip,thisDDL,thisHwaddr)) { + AliError(Form("Failed to get hardware address for FMD%d%c[%2d,%3d]", + det, ring, sector, strip)); + continue; } - // Finally, we need to close the final ALTRO buffer if it wasn't - // already - if (altro) { - altro->Flush(); - altro->WriteDataHeader(kFALSE, kFALSE); - delete altro; + AliFMDDebug(40, ("Got DDL=%d and address=%d from FMD%d%c[%2d,%3d]", + thisDDL, thisHwaddr, det, ring, sector, strip)); + // Check if we're still in the same channel + if (thisHwaddr != hwaddr) { + AliFMDDebug(30, ("Now hardware address 0x%x from FMD%d%c[%2d,%3d] " + "(board 0x%x, chip 0x%x, channel 0x%x)", + thisHwaddr, det, ring, sector, strip, + (thisHwaddr >> 7), (thisHwaddr >> 4) & 0x7, + thisHwaddr & 0xf)); + if (writer) writer->AddChannelTrailer(hwaddr); + hwaddr = thisHwaddr; } + // Check if we're still in the same detector (DDL) + if (ddl != thisDDL) { + if (writer) { + AliFMDDebug(1, ("Closing altro writer %p", writer)); + if ((ret = writer->Close()) < 0) { + AliError(Form("Error: %s", writer->ErrorString(ret))); + return; + } + delete writer; + writer = 0; + file->close(); + delete file; + file = 0; + } + ddl = thisDDL; + } + // If we haven't got a writer (either because none were made so + // far, or because we've switch DDL), make one. + if (!writer) { + AliFMDDebug(1, ("Opening new ALTRO writer w/file %s", + AliDAQ::DdlFileName("FMD",ddl))); + file = new std::ofstream(AliDAQ::DdlFileName("FMD",ddl)); + if (!file || !*file) { + AliFatal(Form("Failed to open file %s", + AliDAQ::DdlFileName("FMD",ddl))); + return; + } + writer = new AliFMDAltroWriter(*file); + writer->SetThreshold(pars->GetZeroSuppression(det, ring, sector, strip)); + } + // Write out our signal + sampleRate = pars->GetSampleRate(det,ring,sector,strip); + writer->AddSignal(digit->Count1()); + if (sampleRate >= 2) writer->AddSignal(digit->Count2()); + if (sampleRate >= 3) writer->AddSignal(digit->Count3()); + } + if (writer) { + writer->AddChannelTrailer(hwaddr); + writer->Close(); + delete writer; + file->close(); + delete file; } - loader->UnloadDigits(); } +#endif + + + //____________________________________________________________________ // // EOF // +