protected void prepareReading()
{
isPrepared = false;
System.IO.Stream stream = reader.BaseStream;
try {
getImageSize(0, out width, out height);
nbits = getNumBits(0);
pmi = getPhotometricInterpretation(0);
getStrips(0, out stripPos, out stripCount, out rowCount);
compid = getCompressionTagNumber(0);
planarConfig = getPlanarConfiguration(0);
diffTag = getDifferencePredictor(0);
isFloat = isDataFloatPoint(0);
} catch (ReadFileException ex) {
throw ex;
} catch (Exception ex) {
throw new ReadFileException("Unabled to read TIF parameters", ex);
}
if (width <= 0 || height <= 0 || stripCount.Length != stripPos.Length || stripPos.Length == 0)
{
throw new ReadFileException("Invalid image info.");
}
if (nbits != 8 && nbits != 16 && nbits != 32)
{
throw new ReadFileException("Can only read 8/16/32 bit images.");
}
if (pmi != 0 && pmi != 1 && pmi != 2 && pmi != 3)
{
throw new ReadFileException("Not a valid TIFF image.");
}
if (nbits == 16)
{
totBytes = Convert.ToUInt32(width * height * 2);
}
else if (nbits == 32)
{
totBytes = Convert.ToUInt32(width * height * 4);
}
else
{
totBytes = Convert.ToUInt32(width * height);
}
spaceStrip = stripPos[stripPos.Length - 1] + stripCount[stripPos.Length - 1] - stripPos[0];
isPrepared = true;
}
public StkWriter()
: base()
{
CompressMethod = MyTiffCompression.CompressionMethod.UNCOMPRESSED;
HorizontalDifferencing = false;
}
