//
// KhorosReader.java
//
/*
OME Bio-Formats package for reading and converting biological file formats.
Copyright (C) 2005-@year@ UW-Madison LOCI and Glencoe Software, Inc.
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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package loci.formats.in;
import java.io.IOException;
import loci.common.RandomAccessInputStream;
import loci.formats.FormatException;
import loci.formats.FormatReader;
import loci.formats.FormatTools;
import loci.formats.MetadataTools;
import loci.formats.meta.MetadataStore;
/**
* Reader for Khoros XV files.
*
* <dl><dt><b>Source code:</b></dt>
* <dd><a href="http://trac.openmicroscopy.org.uk/ome/browser/bioformats.git/components/bio-formats/src/loci/formats/in/KhorosReader.java">Trac</a>,
* <a href="http://git.openmicroscopy.org/?p=bioformats.git;a=blob;f=components/bio-formats/src/loci/formats/in/KhorosReader.java;hb=HEAD">Gitweb</a></dd></dl>
*/
public class KhorosReader extends FormatReader {
// -- Constants --
public static final int KHOROS_MAGIC_BYTES = 0xab01;
// -- Fields --
/** Global lookup table. */
private byte[][] lut;
/** Image offset. */
private long offset;
// -- Constructor --
/** Constructs a new Khoros reader. */
public KhorosReader() {
super("Khoros XV", "xv");
domains = new String[] {FormatTools.GRAPHICS_DOMAIN};
}
// -- IFormatReader API methods --
/* @see loci.formats.IFormatReader#isThisType(RandomAccessInputStream) */
public boolean isThisType(RandomAccessInputStream stream) throws IOException {
final int blockLen = 2;
if (!FormatTools.validStream(stream, blockLen, false)) return false;
return stream.readShort() == KHOROS_MAGIC_BYTES;
}
/* @see loci.formats.IFormatReader#get8BitLookupTable() */
public byte[][] get8BitLookupTable() throws FormatException, IOException {
FormatTools.assertId(currentId, true, 1);
return lut;
}
/**
* @see loci.formats.IFormatReader#openBytes(int, byte[], int, int, int, int)
*/
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);
int bufSize = FormatTools.getPlaneSize(this);
in.seek(offset + no * bufSize);
readPlane(in, x, y, w, h, buf);
return buf;
}
/* @see loci.formats.IFormatReader#close(boolean) */
public void close(boolean fileOnly) throws IOException {
super.close(fileOnly);
if (!fileOnly) {
lut = null;
offset = 0;
}
}
// -- Internal FormatReader API methods --
/* @see loci.formats.FormatReader#initFile(String) */
protected void initFile(String id) throws FormatException, IOException {
super.initFile(id);
in = new RandomAccessInputStream(id);
in.skipBytes(4);
in.order(true);
int dependency = in.readInt();
addGlobalMeta("Comment", in.readString(512));
in.order(dependency == 4 || dependency == 8);
core[0].sizeX = in.readInt();
core[0].sizeY = in.readInt();
in.skipBytes(28);
core[0].imageCount = in.readInt();
if (getImageCount() == 0) core[0].imageCount = 1;
core[0].sizeC = in.readInt();
int type = in.readInt();
switch (type) {
case 0:
core[0].pixelType = FormatTools.INT8;
break;
case 1:
core[0].pixelType = FormatTools.UINT8;
break;
case 2:
core[0].pixelType = FormatTools.UINT16;
break;
case 4:
core[0].pixelType = FormatTools.INT32;
break;
case 5:
core[0].pixelType = FormatTools.FLOAT;
break;
case 9:
core[0].pixelType = FormatTools.DOUBLE;
break;
default: throw new FormatException("Unsupported pixel type : " + type);
}
// read lookup table
in.skipBytes(12);
int c = in.readInt();
if (c > 1) {
core[0].sizeC = c;
int n = in.readInt();
lut = new byte[c][n];
in.skipBytes(436);
for (int i=0; i<lut.length; i++) {
for (int j=0; j<lut[0].length; j++) {
lut[i][j] = in.readByte();
}
}
}
else in.skipBytes(440);
offset = in.getFilePointer();
core[0].sizeZ = getImageCount();
core[0].sizeT = 1;
core[0].rgb = getSizeC() > 1;
core[0].interleaved = false;
core[0].littleEndian = dependency == 4 || dependency == 8;
core[0].dimensionOrder = "XYCZT";
core[0].indexed = lut != null;
core[0].falseColor = false;
core[0].metadataComplete = true;
if (isIndexed()) {
core[0].sizeC = 1;
core[0].rgb = false;
}
MetadataStore store = makeFilterMetadata();
MetadataTools.populatePixels(store, this);
MetadataTools.setDefaultCreationDate(store, id, 0);
}
}