//
// BaseTiffMock.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.utests.tiff;

import java.io.IOException;
import java.nio.ByteOrder;

import loci.common.ByteArrayHandle;
import loci.common.RandomAccessInputStream;
import loci.common.RandomAccessOutputStream;
import loci.formats.FormatException;
import loci.formats.tiff.IFD;
import loci.formats.tiff.IFDType;
import loci.formats.tiff.PhotoInterp;
import loci.formats.tiff.TiffParser;
import loci.formats.tiff.TiffRational;
import loci.formats.tiff.TiffSaver;

/**
 * <dl><dt><b>Source code:</b></dt>
 * <dd><a href="http://trac.openmicroscopy.org.uk/ome/browser/bioformats.git/components/bio-formats/test/loci/formats/utests/tiff/BaseTiffMock.java">Trac</a>,
 * <a href="http://git.openmicroscopy.org/?p=bioformats.git;a=blob;f=components/bio-formats/test/loci/formats/utests/tiff/BaseTiffMock.java;hb=HEAD">Gitweb</a></dd></dl>
 *
 * @author callan
 */
public class BaseTiffMock {

  private ByteArrayHandle handle;
  
  private RandomAccessInputStream in;

  private RandomAccessOutputStream out;

  private TiffParser tiffParser;

  private TiffSaver tiffSaver;

  private static byte[] TIFF_HEADER = new byte[] {
    0x49, 0x49, 0x2A, 0x00, 0x08, 0x00, 0x00, 0x00,
  };

  private static final int ENTRY_VALUE_BEGIN_OFFSET = 65535;

  public BaseTiffMock() throws FormatException, IOException {
    handle = new ByteArrayHandle();
    handle.setOrder(ByteOrder.LITTLE_ENDIAN);
    out = new RandomAccessOutputStream(handle);
    tiffSaver = new TiffSaver(out, handle);
    tiffSaver.writeHeader();

    IFD ifd = new IFD();
    ifd.put(IFD.IMAGE_WIDTH, getImageWidth());
    ifd.put(IFD.IMAGE_LENGTH, getImageLength());
    ifd.put(IFD.BITS_PER_SAMPLE, getBitsPerSample());
    ifd.put(IFD.COMPRESSION, getCompression());
    ifd.put(IFD.PHOTOMETRIC_INTERPRETATION, PhotoInterp.RGB.getCode());
    ifd.put(IFD.STRIP_OFFSETS, getStripOffsets());
    ifd.put(IFD.SAMPLES_PER_PIXEL, getSamplesPerPixel());
    ifd.put(IFD.ROWS_PER_STRIP, getRowsPerStrip());
    ifd.put(IFD.X_RESOLUTION, getXResolution());
    ifd.put(IFD.Y_RESOLUTION, getYResolution());
    ifd.put(IFD.RESOLUTION_UNIT, getResolutionUnit());

    tiffSaver.writeIFD(ifd, 0);

    in = new RandomAccessInputStream(handle);
    tiffParser = new TiffParser(in);
  }

  protected int getEntryCount() {
    return 11;
  }

  public TiffParser getTiffParser() {
    return tiffParser;
  }

  public int getImageWidth() {
    return 6;
  }

  public int getImageLength() {
    return 4;
  }

  public int[] getBitsPerSample() {
    return new int[] { 8 };
  }

  public int getCompression() {
    return 1;
  }

  public int[] getStripOffsets() {
    return new int[] { 0, 1, 2 };
  }

  public int[] getRowsPerStrip() {
    return new int[] { 2, 2, 2 };
  }

  public TiffRational getXResolution() {
    return new TiffRational(1, 4);
  }

  public TiffRational getYResolution() {
    return new TiffRational(1, 2);
  }

  public short getResolutionUnit() {
    return 1;
  }

  public int getSamplesPerPixel() {
    return 1;
  }

}