Esempio n. 1
0
int YARPImageFile::Read(const char *src, YARPGenericImage& dest, int format)
{
 if (format!=YARPImageFile::FORMAT_NUMERIC)
    {
      return ImageRead(dest,src);
    }
  int hh = 0, ww = 0;
  {
    ifstream fin(src);
    int blank = 1;
    int curr = 0;
    while (!fin.eof())
      {
	int ch = fin.get();
	//if (ch!='\n') printf("[%c]",ch);
	if (ch==' ' || ch == '\t' || ch == '\r' || ch == '\n' || fin.eof())
	  {
	    if (!blank)
	      {
		if (curr==0)
		  {
		    hh++;
		  }
		curr++;
		if (curr>ww)
		  {
		    ww = curr;
		    //printf("%d\n", ww);
		  }
	      }
	    blank = 1;
	    if (ch=='\n')
	      {
		curr = 0;
	      }
	  }
	else
	  {
	    blank = 0;
	  }
      }
  }
  //printf("yyy dim %d %d\n", hh, ww);
  YARPImageOf<YarpPixelFloat> flt;
  flt.Resize(ww,hh);
  hh = 0; ww = 0;
  {
    char buf[256];
    int idx = 0;
    ifstream fin(src);
    int blank = 1;
    int curr = 0;
    while (!fin.eof())
      {
	int ch = fin.get();
	if (ch==' ' || ch == '\t' || ch == '\r' || ch == '\n' || fin.eof())
	  {
	    if (!blank)
	      {
		if (curr==0)
		  {
		    hh++;
		  }
		curr++;
		if (curr>ww)
		  {
		    ww = curr;
		  }
		buf[idx] = '\0';
		flt(curr-1,hh-1) = float(atof(buf));
		idx = 0;
	      }
	    blank = 1;
	    if (ch=='\n')
	      {
		curr = 0;
	      }
	  }
	else
	  {
	    buf[idx] = ch;
	    idx++;
	    assert(idx<sizeof(buf));
	    blank = 0;
	  }
      }
  }
    
  dest.CastCopy(flt);

  return 0;

  //return ImageRead(dest,src);
  //return 0;
}
Esempio n. 2
0
/// LATER: this is NOT tested.
static int ImageRead(YARPGenericImage& img, const char *filename)
{
	int width, height, color, num, size;

	FILE  *fp = ACE_OS::fopen(filename, "rb");

	if (!fp)    //die("cannot open file for reading");
	{
		warn("cannot open file for reading");
		return -1;
	}

	if (ReadHeader(fp, &height, &width, &color) < 0)
	{
		ACE_OS::fclose (fp);
		return -1;
	}

	if (!color)
		// img.GetID()==YARP_PIXEL_RGB || img.GetID() == YARP_PIXEL_MONO)
	{
		// img.SetID(color?YARP_PIXEL_RGB:YARP_PIXEL_MONO);
		img.SetID(YARP_PIXEL_MONO);
		img.Resize(width,height);
		///ACE_ASSERT(img.GetPadding() == 0);
		ACE_ASSERT(img.GetRawBuffer()!=NULL);

		const int w = img.GetWidth() * img.GetPixelSize();
		const int h = img.GetHeight();
		const int pad = img.GetPadding() + w;
		char *dst = img.GetRawBuffer ();
		size = w * h;

		num = 0;
		for (int i = 0; i < h; i++)
		{
			num += ACE_OS::fread((void *) dst, 1, (size_t) w, fp);
			dst += pad;
		}
	}
	else if (img.GetID()==YARP_PIXEL_RGB)
	{		
		img.SetID(YARP_PIXEL_RGB);
		img.Resize(width,height);
		///ACE_ASSERT(img.GetPadding() == 0);
		ACE_ASSERT(img.GetRawBuffer()!=NULL);

		const int w = img.GetWidth() * img.GetPixelSize();
		const int h = img.GetHeight();
		const int pad = img.GetPadding() + w;
		char *dst = img.GetRawBuffer ();
		size = w * h;

		num = 0;
		for (int i = 0; i < h; i++)
		{
			num += ACE_OS::fread((void *) dst, 1, (size_t) w, fp);
			dst += pad;
		}

	}
	else
	{
		// image is color, nothing was specified, assume BGR
		img.SetID(YARP_PIXEL_BGR);
		img.Resize(width,height);
		///ACE_ASSERT(img.GetPadding() == 0);
		ACE_ASSERT(img.GetRawBuffer()!=NULL);

		const int w = img.GetWidth() * img.GetPixelSize();
		const int h = img.GetHeight();
		const int pad = img.GetPadding() + w;
		size = w * h;

		YARPImageOf<YarpPixelRGB> img2;
		img2.Resize (width,height);
		char *dst = img2.GetRawBuffer ();

		num = 0;
		for (int i = 0; i < h; i++)
		{
			num += ACE_OS::fread((void *) dst, 1, (size_t) w, fp);
			dst += pad;
		}

		img.CastCopy(img2);
	}

	if (num != size) 
	{
		ACE_OS::printf ( "%d versus %d\n", num, size );
		//die("cannot read image data from file");
		warn("cannot read image data from file");
		ACE_OS::fclose (fp);
		return -1;
	}

	ACE_OS::fclose(fp);

	return 0;
}