/*
* #%L
* OME Bio-Formats package for reading and converting biological file formats.
* %%
* Copyright (C) 2005 - 2015 Open Microscopy Environment:
* - Board of Regents of the University of Wisconsin-Madison
* - Glencoe Software, Inc.
* - University of Dundee
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/gpl-2.0.html>.
* #L%
*/
package loci.formats.in;
import java.io.IOException;
import loci.common.RandomAccessInputStream;
import loci.formats.CoreMetadata;
import loci.formats.FormatException;
import loci.formats.FormatReader;
import loci.formats.FormatTools;
import loci.formats.MetadataTools;
import loci.formats.meta.MetadataStore;
/**
* I2IReader is the file format reader for I2I files.
*/
public class I2IReader extends FormatReader {
// -- Constants --
private static final int HEADER_SIZE = 1024;
// -- Constructor --
/** Constructs a new I2I reader. */
public I2IReader() {
super("I2I", new String[] {"i2i"});
domains = new String[] {FormatTools.LM_DOMAIN};
}
// -- IFormatReader API methods --
/** @see loci.formats.IFormatReader#isThisType(RandomAccessInputStream) */
@Override
public boolean isThisType(RandomAccessInputStream stream) throws IOException {
return FormatTools.validStream(stream, HEADER_SIZE, false);
}
/**
* @see loci.formats.IFormatReader#openBytes(int, byte[], int, int, int, int)
*/
@Override
public byte[] openBytes(int no, byte[] buf, int x, int y, int w, int h)
throws FormatException, IOException
{
FormatTools.checkPlaneParameters(this, no, buf.length, x, y, w, h);
long planeSize = FormatTools.getPlaneSize(this);
long offset = HEADER_SIZE + no * planeSize;
if (offset + planeSize <= in.length() && offset >= 0) {
in.seek(offset);
readPlane(in, x, y, w, h, buf);
}
return buf;
}
// -- Internal FormatReader API methods --
/* @see loci.formats.FormatReader#initFile(String) */
@Override
public void initFile(String id) throws FormatException, IOException {
super.initFile(id);
in = new RandomAccessInputStream(id);
CoreMetadata m = core.get(0);
char pixelType = (char) in.readByte();
switch (pixelType) {
case 'I':
m.pixelType = FormatTools.INT16;
break;
case 'R':
m.pixelType = FormatTools.FLOAT;
break;
case 'C':
throw new FormatException("Complex pixel data not yet supported");
default:
throw new FormatException("Invalid pixel type: " + pixelType);
}
if ((char) in.readByte() != ' ') {
throw new FormatException("Expected space after pixel type character");
}
String x = in.readString(6).trim();
String y = in.readString(6).trim();
String z = in.readString(6).trim();
m.littleEndian = (char) in.readByte() != 'B';
m.sizeX = Integer.parseInt(x);
m.sizeY = Integer.parseInt(y);
m.sizeZ = Integer.parseInt(z);
in.order(isLittleEndian());
short minPixelValue = in.readShort();
short maxPixelValue = in.readShort();
short xCoordinate = in.readShort();
short yCoordinate = in.readShort();
int n = in.readShort();
in.skipBytes(33); // reserved for future use
for (int i=0; i<15; i++) {
String history = in.readString(64);
addGlobalMetaList("Image history", history.trim());
}
addGlobalMeta("Minimum intensity value", minPixelValue);
addGlobalMeta("Maximum intensity value", maxPixelValue);
addGlobalMeta("Image position X", xCoordinate);
addGlobalMeta("Image position Y", yCoordinate);
// the stored Z value is always the total number of planes
// when an additional dimension is defined, the Z value
// needs to be adjusted to reflect the true Z count
if (n > 0) {
m.sizeZ /= n;
}
// the user defines what the N dimension means
// in practice, it could be timepoints, channels, etc. but we have no
// way of knowing based on the file metadata
m.sizeT = n;
m.imageCount = getSizeZ() * getSizeT();
m.sizeC = 1;
m.rgb = false;
m.dimensionOrder = "XYZTC";
MetadataStore store = makeFilterMetadata();
MetadataTools.populatePixels(store, this);
}
}