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4347b38f | 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 | /* $Id$ */ | |
17 | ||
e802be3e | 18 | //____________________________________________________________________ |
4347b38f | 19 | // |
20 | // Buffer to read RAW ALTRO FMD format from a AliRawReader | |
21 | // | |
7684b53c | 22 | // This class derives from AliAltroBuffer, but overloads the memer |
23 | // function Next to do some extra processing. In particular, it tries | |
24 | // to autodetect the sample rate. If zero-suppression was used when | |
25 | // writing the raw data, then the automatic discovery will not work, | |
26 | // and the sample rate should be set explicitly. | |
4347b38f | 27 | // |
e802be3e | 28 | #include "AliFMDRawStream.h" // ALIFMDRAWSTREAM_H |
56b1929b | 29 | #include <AliRawReader.h> // ALIRAWREADER_H |
4347b38f | 30 | |
31 | //____________________________________________________________________ | |
925e6570 | 32 | ClassImp(AliFMDRawStream) |
1a1fdef7 | 33 | #if 0 |
34 | ; // This is here to keep Emacs for indenting the next line | |
35 | #endif | |
4347b38f | 36 | |
37 | //____________________________________________________________________ | |
e802be3e | 38 | AliFMDRawStream::AliFMDRawStream(AliRawReader* reader, UShort_t sampleRate) |
4347b38f | 39 | : AliAltroRawStream(reader), |
e802be3e | 40 | fSampleRate(sampleRate), |
41 | fPrevTime(-1), | |
42 | fExplicitSampleRate(kFALSE) | |
43 | { | |
44 | if (fSampleRate > 0) fExplicitSampleRate = kTRUE; | |
45 | } | |
4347b38f | 46 | |
47 | //_____________________________________________________________________________ | |
48 | Bool_t | |
49 | AliFMDRawStream::Next() | |
50 | { | |
51 | // read the next raw digit | |
52 | // returns kFALSE if there is no digit left | |
53 | fPrevTime = fTime; | |
54 | if (AliAltroRawStream::Next()) { | |
e802be3e | 55 | if (!fExplicitSampleRate && fPrevPad != fPad) |
4347b38f | 56 | fSampleRate = fTimeBunch / 128; |
4347b38f | 57 | return kTRUE; |
58 | } | |
59 | return kFALSE; | |
60 | } | |
61 | ||
4347b38f | 62 | //_____________________________________________________________________________ |
63 | // | |
64 | // EOF | |
65 | // |