arFileGrabber.cpp

Go to the documentation of this file.

#include "arFileGrabber.h"

#include <windows.h>
#include <stdio.h>
#include <stdlib.h>


ARFileGrabber::ARFileGrabber(const char* nFileName, int nWidth, int nHeight, int nByterPerComp)
{
        width=nWidth;
        height=nHeight;
        bufferlen = nByterPerComp*width*height;
        buffer = new unsigned char[bufferlen];

        filename = new char[strlen(nFileName)+1];
        strcpy(filename, nFileName);

        fileIdx = 0;
        oldIdx = -1;
        showedWarning = false;
}


ARFileGrabber::~ARFileGrabber()
{
        delete buffer;
}


void
ARFileGrabber::GrabFrame()
{
        char fname[MAX_PATH];

        sprintf(fname, filename, fileIdx);

        FILE* fp = fopen(fname, "rb");

        if(!fp)
        {
                if(!showedWarning)
                        printf("ERROR: can not load file: '%s'\n", fname);
                showedWarning = true;
                return;
        }

        fread(buffer, 1, bufferlen, fp);
        fclose(fp);

        if(fileIdx!=oldIdx)
        {
                printf("reading file %s\n", fname);
                oldIdx=fileIdx;
        }
}


void
ARFileGrabber::NextFile()
{
        fileIdx++;
        //printf("setting fileIdx to %d\n", fileIdx);
        showedWarning = false;
}