/*
* #%L
* BSD implementations of Bio-Formats readers and writers
* %%
* Copyright (C) 2005 - 2015 Open Microscopy Environment:
* - Board of Regents of the University of Wisconsin-Madison
* - Glencoe Software, Inc.
* - University of Dundee
* %%
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* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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package loci.formats.utests;
import static org.testng.AssertJUnit.*;
import java.util.ArrayList;
import loci.common.ByteArrayHandle;
import loci.common.DataTools;
import loci.common.Location;
import loci.common.services.DependencyException;
import loci.common.services.ServiceException;
import loci.common.services.ServiceFactory;
import loci.formats.FormatException;
import loci.formats.IFormatWriter;
import loci.formats.ImageReader;
import loci.formats.MetadataTools;
import loci.formats.meta.IMetadata;
import loci.formats.out.JPEG2000Writer;
import loci.formats.services.OMEXMLService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
/**
* Test case which outlines the problems seen in omero:#6728.
*
* @author Melissa Linkert <melissa at glencoesoftware.com>
*/
public class SixteenBitLosslessJPEG2000Test {
private static final Logger LOGGER =
LoggerFactory.getLogger(SixteenBitLosslessJPEG2000Test.class);
@Test
public void testLosslessPixels() throws Exception {
int failureCount = 0;
for (short v=Short.MIN_VALUE; v<Short.MAX_VALUE; v++) {
int index = v + Short.MAX_VALUE + 1;
byte[] pixels = DataTools.shortToBytes(v, false);
String file = index + ".jp2";
ByteArrayHandle tmpFile = new ByteArrayHandle(1);
Location.mapFile(file, tmpFile);
IMetadata metadata16;
try {
ServiceFactory factory = new ServiceFactory();
OMEXMLService service = factory.getInstance(OMEXMLService.class);
metadata16 = service.createOMEXMLMetadata();
}
catch (DependencyException exc) {
throw new FormatException("Could not create OME-XML store.", exc);
}
catch (ServiceException exc) {
throw new FormatException("Could not create OME-XML store.", exc);
}
MetadataTools.populateMetadata(metadata16, 0, "foo", false, "XYCZT",
"uint16", 1, 1, 1, 1, 1, 1);
IFormatWriter writer16 = new JPEG2000Writer();
writer16.setMetadataRetrieve(metadata16);
writer16.setId(file);
writer16.saveBytes(0, pixels);
writer16.close();
byte[] buf = tmpFile.getBytes();
byte[] realData = new byte[(int) tmpFile.length()];
System.arraycopy(buf, 0, realData, 0, realData.length);
tmpFile.close();
tmpFile = new ByteArrayHandle(realData);
Location.mapFile(file, tmpFile);
ImageReader reader = new ImageReader();
reader.setId(file);
byte[] plane = reader.openBytes(0);
for (int q=0; q<plane.length; q++) {
if (plane[q] != pixels[q]) {
LOGGER.debug("FAILED on {}",
DataTools.bytesToShort(pixels, false));
failureCount++;
break;
}
}
reader.close();
tmpFile.close();
Location.mapFile(file, null);
}
assertEquals(failureCount, 0);
}
}