442 lines
11 KiB
C++
442 lines
11 KiB
C++
//This is an object interface for reading HIT data files
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//See HIT documentation for details and examples.
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/*
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THIS DOESN'T WORK!
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.L hitreader.c
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Hitdata data;
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data.read(“my_file.da2”); //to load whole file at once – forget it! See below.
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data.read(“my_file.da2”,1000,100,10) //to read 100 frames starting from frame 1000 and incrementing by 10 (i.e. frame 1000, 1010, 1020, ... 1990 will be read)
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//Reading 10 000 frames is reasonable. Reading 100 000 frames made my VM beg for memory.
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data.nrFrames //to see how many frames you have
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data.frames[0].nrBoards //to see how many boards you had in the system
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data.frames[0].boards[0].nrChannels //to see how many channels you have in board 0
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data.frames[10].boards[0].data[100] //get signal value for frame 10, board 0, channel 100
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data.frames[10].boards[0].syncframe.local_ctr //get the local synchro counter for frame 10, board 0
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//same for .global_ctr, .sma_state, .dummy, .device_nr, .data_ok
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*/
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//*********************** Helper *************************
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#include <fstream>
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#include <iostream>
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using namespace std;
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//#define debug(str) std::cout << "HIT DEBUG: " << str << endl;
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#define debug(str)
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//*********************** Syncframe *************************
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class Syncframe
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{
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public:
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Syncframe()
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{
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debug("Syncframe()");
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local_ctr = global_ctr = 0;
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sma_state = dummy = 0;
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device_nr = -1;
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data_ok = 0;
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};
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~Syncframe()
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{
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debug("~Syncframe()");
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};
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int sizeInFile()
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{
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return 16;
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};
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int read(std::ifstream* file)
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{
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char buffer[16];
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file->read(buffer,16);
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if (file->fail())
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return 0;
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local_ctr = *(unsigned short*)(buffer+0);
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global_ctr = *(unsigned short*)(buffer+2);
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sma_state = *(unsigned short*)(buffer+4);
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dummy = *(unsigned short*)(buffer+6);
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device_nr = *(int*)(buffer+8);
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data_ok = *(int*)(buffer+12);
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// std::cout << "Syncframe:" << local_ctr << " " << global_ctr << " " << sma_state << " " << dummy << " " << device_nr << " " << data_ok << std::endl;
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return 1;
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};
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unsigned short local_ctr;
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unsigned short global_ctr;
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unsigned short sma_state;
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unsigned short dummy;
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int device_nr;
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unsigned int data_ok;
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};
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//*********************** Sensorframe *************************
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class Boardframe
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{
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public:
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Boardframe(int nr_channels = 0)
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{
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debug("Boardframe()");
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data = NULL;
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resize (nr_channels);
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};
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Boardframe(const Boardframe& in)
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{
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debug("Boardframe(Boardframe&)");
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data = NULL;
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resize(in.nrChannels);
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for (int i = 0; i < nrChannels; i++)
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data[i] = in.data[i];
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syncframe = in.syncframe;
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};
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Boardframe& operator=(const Boardframe& in)
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{
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debug("Boardframe::operator==");
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resize(in.nrChannels);//creates an array called data of length nrChannels
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for (int i = 0; i < nrChannels; i++)
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data[i] = in.data[i];
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syncframe = in.syncframe;
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return *this;
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};
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~Boardframe()
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{
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debug("~Boardframe()");
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if (data)
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delete[] data;
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};
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void resize(int nr_channels)
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{
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if (data)
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delete[] data;
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nrChannels = nr_channels;
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if (nrChannels)
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data = new unsigned short[nrChannels];
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else
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data = NULL;
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};
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int sizeInFile()
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{
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// std::cout << "boardframe.sizeInFile() = " << syncframe.sizeInFile() + nrChannels*2 << std::endl;
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return syncframe.sizeInFile() + nrChannels*2;
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};
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int read(std::ifstream* file)
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{
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if (syncframe.read(file) == 0)//get the syncframe before the board data
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return 0;
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//I must be already resized at this point!
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file->read((char*)data,2*nrChannels);
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if (file->fail())
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return 0;
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// std::cout<< "data[" << nrChannels << "]: ";
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// for (int i = 0;i<nrChannels;i++) std::cout << data[i] << " ";
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// std::cout << std::endl;
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return 1;
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};
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unsigned short& operator[] (int index)
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{
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return data[index];
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};
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Syncframe syncframe;
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int nrChannels;
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unsigned short* data;
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};
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//*********************** Fullframe *************************
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class Fullframe
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{
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public:
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Fullframe(int nr_boards = 0)
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{
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debug("Fullframe()");
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boards = NULL;
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resize(nr_boards);
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};
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Fullframe(const Fullframe& in)
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{
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debug("Fullframe(Fullframe&)");
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boards = NULL;
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resize(in.nrBoards);
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for (int i = 0; i < nrBoards; i++)
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boards[i] = in.boards[i];
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};
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Fullframe& operator=(const Fullframe& in)
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{
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debug("Fullframe::operator==");
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resize(in.nrBoards);
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for (int i = 0; i < nrBoards; i++)
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boards[i] = in.boards[i];
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return *this;
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};
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~Fullframe()
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{
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debug("~Fullframe()");
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if (boards)
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delete[] boards;
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};
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void resize (int nr_boards)
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{
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if (boards)
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delete[] boards;
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nrBoards = nr_boards;
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if (nrBoards)
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boards = new Boardframe[nrBoards];
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else
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boards = NULL;
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}
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int sizeInFile()
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{
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if (boards){
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// std::cout << "Fullframe.sizeInFile() = " << 2 + nrBoards*2 + nrBoards * boards[0].sizeInFile() << std::endl;
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// return 2 + nrBoards*2 + nrBoards * boards[0].sizeInFile();
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//// boards[0].sizeInFile() returns 656 for every board...
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return 2 + 4*2 + (16 + 320 * 2) + (16 + 128*2)*3; //1482
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}
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else
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return 0; //no boards, makes no sense...
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};
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int read(std::ifstream* file)
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{
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//Read number of boards
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unsigned short nr_boards;
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file->read((char*)&nr_boards,2);
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if(file->fail()){
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std::cerr << "File read failed." << std::endl;
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return 0;
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}
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if (nr_boards!=4){
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std::cerr << "Unrealistic number(!=) of boards to be read:"<< nr_boards << std::endl;
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std::cerr << "Will try to resync frame." << std::endl;
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for (int j = 0;j<741;j++){
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file->read((char*)&nr_boards,2);
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if (nr_boards==4) break;
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}
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if ( nr_boards!=4){
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std::cerr << "Resync failed." << std::endl;
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return 0;
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}
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}
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//std::cout << " nr_boards: " << nr_boards << std::endl;
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//Read channel counts
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unsigned short* channel_counts = new unsigned short[nr_boards];
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file->read((char*)channel_counts,nr_boards*2);
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if (file->fail())
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{
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delete[] channel_counts;
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return 0;
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}
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//Read board frames
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resize(nr_boards);
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for (int board_nr = 0; board_nr < nr_boards; board_nr++)
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{
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// std::cout << " channel_counts[" << board_nr << "]: "<< channel_counts[board_nr] << std::endl;
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boards[board_nr].resize(channel_counts[board_nr]);
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if (boards[board_nr].read(file) == 0)//read the board
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{
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delete[] channel_counts;
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return 0;
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}
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}
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delete[] channel_counts;
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return 1;
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};
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int nrChannels()
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{
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int result = 0;
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for (int board_nr = 0; board_nr < nrBoards; board_nr++)
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result += boards[board_nr].nrChannels;
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return result;
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};
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unsigned short& operator[] (int index)
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{
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for (int board_nr = 0; board_nr < nrBoards; board_nr++)
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{
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if (index >= boards[board_nr].nrChannels)
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index -= boards[board_nr].nrChannels;
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else
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return boards[board_nr][index];
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}
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std::cerr << " ### Fullframe::operator[]: index out of range!" << std::endl;
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// return (*NULL); //this will cause crash (intended).
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return boards[nrBoards][index];
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};
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int nrBoards;
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Boardframe* boards;
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};
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//*********************** Hitdata *************************
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class Hitdata
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{
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public:
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Hitdata(int nr_frames = 0)
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{
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frames = NULL;
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resize(nr_frames);
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};
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Hitdata(const Hitdata& in)
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{
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frames = NULL;
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resize(in.nrFrames);
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for (int i = 0; i < nrFrames; i++)
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frames[i] = in.frames[i];
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};
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Hitdata& operator=(const Hitdata& in)
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{
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resize(in.nrFrames);
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for (int i = 0; i < nrFrames; i++)
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frames[i] = in.frames[i];
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return *this;
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};
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~Hitdata()
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{
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if (nrFrames)
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delete[] frames;
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};
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void resize (int nr_frames)
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{
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if (nrFrames)
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delete[] frames;
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nrFrames = nr_frames;
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if (nrFrames)
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frames = new Fullframe[nrFrames];
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else
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frames = NULL;
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};
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//Read data from a given file.
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//first_frame is the number of first frame to be read
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//nr_frames is the maximum number of frames to be read
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//-1 to read all of them
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//increment allows you reading once every nth sample
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//Return number of frames read or 0 in case of failure
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int readFile(char* filename, int first_frame = 1, int nr_frames = -1, int increment = 1)
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{
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std::ifstream file;
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//Open the file
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file.open(filename, ios_base::in | ios_base::binary);
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if (!file.is_open())
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{
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std::cerr << " ### Hitdata: File could not be open!" << std::endl;
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return 0; //file could not be opened
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}
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//Read first record to find board configuration
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Fullframe sampleframe;
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if (sampleframe.read(&file) == 0)
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{
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std::cerr << " ### Hitdata: First frame could not be read!" << std::endl;
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file.close();
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return 0;
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}
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else {
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std::cout << "Sample frame size (bytes): " << sampleframe.sizeInFile() << std::endl;
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}
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//Check file size
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file.seekg(0, std::ios::beg);
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std::streamsize fsize = file.tellg();
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file.seekg(0, std::ios::end);
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fsize = file.tellg() - fsize;
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//Determine real frames to read
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unsigned int max_frames = fsize / sampleframe.sizeInFile();
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if ((max_frames == -1) || (max_frames < nr_frames))
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nr_frames = max_frames;
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std::cout << " Hitdata: Nr frames to be read: " << nr_frames << std::endl;
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//Read!
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// resize(nr_frames); //make an array of Fullframes called frames of size nr_frames
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file.seekg(first_frame * sampleframe.sizeInFile(), std::ios::beg);
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for (int frame_nr = first_frame; frame_nr < nr_frames; frame_nr++)
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{
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if ((frame_nr%10000) == 0)
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std::cout << " Frame " << frame_nr << std::endl;
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file.seekg((frame_nr*increment) * sampleframe.sizeInFile() , std::ios::beg);
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if (file.eof()) {
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std::cerr<< "end of file reached." << std::endl;
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return frame_nr;
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}
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if ( sampleframe.read(&file) == 0) //read the next frame
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{
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std::cerr << " ### Hitdata: Frame " << frame_nr << " could not be read!" << std::endl;
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file.close(); //read error, finish!
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// frames = frame_nr; //Kinky! We decrease nr_frames, but the actual array size remains unchanged!
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///???? I don't know what the above line does.
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return frame_nr;
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}
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// std::cout << frames[frame_nr].nrBoards << std::endl;
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}
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//Finished
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file.close();
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return nr_frames;
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};
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Fullframe& operator[] (int index)
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{
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if (index < nrFrames)
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return frames[index];
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else
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{
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std::cerr << " ### Hitdata::operator[]: index out of range!" << std::endl;
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// return (*NULL); //this will cause crash (intended).
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return frames[index];
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}
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};
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int nrFrames;
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Fullframe* frames;
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};
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