99 lines
2.8 KiB
C++
99 lines
2.8 KiB
C++
#include <iostream>
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#include <fstream>
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#include "BILAccessor.h"
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using namespace std;
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void BILAccessor::init(void * poly)
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{
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return;
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}
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void BILAccessor::setData(char * buf, int row, int col, int numEl)
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{
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char * dataLine = new char[numEl*Bands*SizeV];
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for(int i = 0; i < numEl; ++i)
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{
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for(int j = 0; j < Bands; ++j)
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{
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for(int k = 0; k < SizeV; ++k)
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{
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dataLine[i*SizeV + j*SizeV*numEl + k] = buf[i*Bands*SizeV + j*SizeV + k];
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}
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}
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}
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for(int i = 0; i < Bands; ++i)
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{
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streampos posNow = ((streampos) row* LineWidth *Bands*SizeV) + (streampos) i*LineWidth*SizeV + (streampos) col*SizeV;
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FileObject.seekp(posNow);
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FileObject.write(&dataLine[i*numEl*SizeV],numEl*SizeV);
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//the good flag gets set but not the eof for some reason, so assume eof when good is set false
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if(!FileObject.good())
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{
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NoGoodFlag = 1;
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EofFlag = -1;
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}
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}
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delete [] dataLine;
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}
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void BILAccessor::setDataBand(char * buf, int row, int col, int numEl, int band)
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{
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streampos posNow = ((streampos)row*LineWidth*Bands*SizeV) + ((streampos) band*LineWidth*SizeV) +(streampos) col*SizeV;
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FileObject.seekp(posNow);
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FileObject.write(buf, numEl*SizeV);
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if(!FileObject.good())
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{
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NoGoodFlag = 1;
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EofFlag = -1;
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}
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}
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void BILAccessor::getData(char * buf, int row, int col, int & numEl)
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{
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char * dataLine = new char[numEl*Bands*SizeV];
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int actualRead = 0;
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for(int i = 0; i < Bands; ++i)
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{
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streampos posNow = ((streampos)row*LineWidth*Bands*SizeV) + ((streampos)(i*LineWidth*SizeV + (streampos) col*SizeV));
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FileObject.seekg(posNow);
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FileObject.read(&dataLine[i*numEl*SizeV],numEl*SizeV);
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actualRead = FileObject.gcount()/(SizeV);
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//the good flag gets set but not the eof for some reason, so assume eof when good is set false
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if(!FileObject.good())
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{
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NoGoodFlag = 1;
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EofFlag = -1;
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}
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}
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numEl = actualRead; //if one of the reads is different, then something went wrong
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for(int i = 0; i < numEl; ++i)
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{
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for(int j = 0; j < Bands; ++j)
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{
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for(int k = 0; k < SizeV; ++k)
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{
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buf[i*Bands*SizeV + j*SizeV + k] = dataLine[i*SizeV + j*SizeV*numEl + k];
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}
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}
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}
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}
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void BILAccessor::getDataBand(char * buf, int row, int col, int & numEl, int band)
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{
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streampos posNow = ((streampos)row*LineWidth*Bands*SizeV) + ((streampos)band*LineWidth*SizeV)+ (streampos)col*SizeV;
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FileObject.seekg(posNow);
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FileObject.read(buf, numEl*SizeV);
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numEl = FileObject.gcount()/(SizeV);
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if(!FileObject.good())
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{
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NoGoodFlag = 1;
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EofFlag = -1;
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}
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}
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