00001 /*************************************************************************** 00002 ** 00003 ** This file is part of GeopsyCore. 00004 ** 00005 ** This library is free software; you can redistribute it and/or 00006 ** modify it under the terms of the GNU Lesser General Public 00007 ** License as published by the Free Software Foundation; either 00008 ** version 2.1 of the License, or (at your option) any later version. 00009 ** 00010 ** This file is distributed in the hope that it will be useful, but WITHOUT 00011 ** ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00012 ** FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 00013 ** License for more details. 00014 ** 00015 ** You should have received a copy of the GNU Lesser General Public 00016 ** License along with this library; if not, write to the Free Software 00017 ** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00018 ** 00019 ** See http://www.geopsy.org for more information. 00020 ** 00021 ** Created : 2006-07-09 00022 ** Authors : 00023 ** Marc Wathelet 00024 ** Marc Wathelet (LGIT, Grenoble, France) 00025 ** 00026 ***************************************************************************/ 00027 00028 #ifndef CITYSIGNAL_H 00029 #define CITYSIGNAL_H 00030 00031 #include <QGpCoreTools.h> 00032 #include "GeopsyCoreDLLExport.h" 00033 00034 namespace GeopsyCore { 00035 00036 #define BLOCK_SIZE 9 00037 00038 class GEOPSYCORE_EXPORT CitySignal 00039 { 00040 TRANSLATIONS("CitySignal"); 00041 public: 00042 CitySignal(); 00043 ~CitySignal(); 00044 00045 bool readHeader(QFile * stream, int version); 00046 bool loadSignals(QFile * stream) const; 00047 bool erase(QFile * stream); 00048 00049 enum RecorderType {Unknown, CityShark1, CityShark2}; 00050 00051 const DateTime& startTime() const {return _startTime;} 00052 const DateTime& endTime() const {return _endTime;} 00053 const char * fileIndex() const {return _fileIndex;} 00054 int channelNum() const {return _channelNum;} 00055 int duration() const {return _duration;} 00056 int gain() const {return _gain;} 00057 int maxAllowedAmpl() const {return _maxAllowedAmpl;} 00058 int maxReachedAmpl() const {return _maxReachedAmpl;} 00059 int frequency() const {return _frequency;} 00060 int nSamples() const {return _nSamples;} 00061 double saturation() const {return _saturation;} 00062 bool erased() const {return _erased;} 00063 QString fileName() const {return _startTime.toString("yyMMdd_hhmm")+"."+_fileIndex;} 00064 private: 00065 void readBlock(QFile * f) {f->read (_currentBlock, BLOCK_SIZE);} 00066 inline void setRecorder(char *ptr); 00067 inline int getSample(char * ptr) const; 00068 inline char * getCouple(char * startPtr); 00069 void setCurrentYear(DateTime& dt); 00070 private: 00071 char _currentBlock [BLOCK_SIZE+1]; 00072 00073 RecorderType _recorder; 00074 bool _erased; 00075 qint64 _dataOffset; 00076 // CityShark 1 and 2 00077 int _channelNum; 00078 int _softwareVersion; 00079 int _serialNum; 00080 DateTime _startTime; 00081 DateTime _endTime; 00082 char _fileIndex[4]; 00083 int _frequency; 00084 int _duration; 00085 int _nSamples; 00086 int _gain; 00087 double _saturation; 00088 int _maxAllowedAmpl; 00089 int _maxReachedAmpl; 00090 // CityShark 2 only 00091 int _latitudeDeg; 00092 int _longitudeDeg; 00093 double _latitudeMin; 00094 double _longitudeMin; 00095 int _satNum; 00096 double _altitude; 00097 }; 00098 00099 inline void CitySignal::setRecorder(char * ptr) 00100 { 00101 TRACE; 00102 if(*ptr=='\0') _recorder=CityShark1; 00103 else if(*ptr=='2' && *(ptr+1)=='\0') _recorder=CityShark2; 00104 else _recorder=Unknown; 00105 } 00106 00107 inline char * CitySignal::getCouple(char * startPtr) 00108 { 00109 TRACE; 00110 char * ptr=startPtr; 00111 while(*ptr!='\0' && *ptr!=',') ptr++; 00112 *ptr='\0'; 00113 return ptr+1; 00114 } 00115 00116 inline int CitySignal::getSample(char * ptr) const 00117 { 00118 TRACE; 00119 union { 00120 struct {unsigned char b1, b2, b3, b4;} b; 00121 int dw; 00122 } val; 00123 #if Q_BYTE_ORDER==Q_BIG_ENDIAN 00124 val.b.b2=ptr[0]; 00125 val.b.b3=ptr[1]; 00126 val.b.b4=ptr[2]; 00127 if(val.b.b2>=0x80) val.b.b1=0xFF; else val.b.b1=0x00; 00128 #else // LITTLE ENDIAN 00129 val.b.b3=ptr[0]; 00130 val.b.b2=ptr[1]; 00131 val.b.b1=ptr[2]; 00132 if(val.b.b3>=0x80) val.b.b4=0xFF; else val.b.b4=0x00; 00133 #endif 00134 return val.dw; 00135 } 00136 00137 } // namespace GeopsyCore 00138 00139 #endif // CITYSIGNAL_H
