obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

58 files changed, 10542 insertions, 0 deletions

diff --git a/libjava/classpath/gnu/javax/imageio/IIOInputStream.java b/libjava/classpath/gnu/javax/imageio/IIOInputStream.java
new file mode 100644
index 000000000..1ede75f78
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/IIOInputStream.java
@@ -0,0 +1,102 @@
+/* GIFStream.java --
+   Copyright (C)  2006  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio;
+
+import java.io.InputStream;
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+
+/**
+ * Implements InputStream on an ImageInputStream
+ * The purpose of this is to avoid IIO dependencies in the various decoders.
+ * (which only use read() anyway).
+ */
+public class IIOInputStream extends InputStream
+{
+  private ImageInputStream is;
+
+  public IIOInputStream( ImageInputStream is )
+  {
+    this.is = is;
+  }
+
+  public int available()
+  {
+    return 0;
+  }
+
+  public void close() throws IOException
+  {
+    is.close();
+  }
+
+  public void mark(int readlimit)
+  {
+    is.mark();
+  }
+
+  public boolean markSupported()
+  {
+    return true;
+  }
+
+  public int read() throws IOException
+  {
+    return is.read();
+  }
+
+  public int read(byte[] b) throws IOException
+  {
+    return is.read(b);
+  }
+
+  public int read(byte[] b, int offset, int length) throws IOException
+  {
+    return is.read(b, offset, length);
+  }
+
+  public void reset() throws IOException
+  {
+    is.reset();
+  }
+
+  public long skip(long n) throws IOException
+  {
+    return is.skipBytes(n);
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/BMPDecoder.java b/libjava/classpath/gnu/javax/imageio/bmp/BMPDecoder.java
new file mode 100644
index 000000000..108461931
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/BMPDecoder.java
@@ -0,0 +1,168 @@
+/* BMPDecoder.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.awt.image.IndexColorModel;
+import java.awt.image.BufferedImage;
+
+public abstract class BMPDecoder {
+
+    protected BMPInfoHeader infoHeader;
+    protected BMPFileHeader fileHeader;
+    protected long offset;
+
+    public BMPDecoder(BMPFileHeader fh, BMPInfoHeader ih){
+        fileHeader = fh;
+        infoHeader = ih;
+        offset = BMPFileHeader.SIZE + BMPInfoHeader.SIZE;
+    }
+
+    /**
+     * Determines the coding type of the bitmap and returns the corresponding
+     * decoder.
+     */
+    public static BMPDecoder getDecoder(BMPFileHeader fh, BMPInfoHeader ih){
+        switch(ih.getCompression()){
+        case BMPInfoHeader.BI_RGB: // uncompressed RGB
+            switch(ih.getBitCount()){
+            case 32:
+                return new DecodeBF32(fh, ih, true);
+
+            case 24:
+                return new DecodeRGB24(fh, ih);
+
+            case 16:
+                return new DecodeBF16(fh, ih, true);
+
+            case 8:
+                return new DecodeRGB8(fh, ih);
+
+            case 4:
+                return new DecodeRGB4(fh, ih);
+
+            case 1:
+                return new DecodeRGB1(fh, ih);
+
+            default:
+                return null;
+            }
+
+        case BMPInfoHeader.BI_RLE8:
+            return new DecodeRLE8(fh, ih);
+
+        case BMPInfoHeader.BI_RLE4:
+            return new DecodeRLE4(fh, ih);
+
+        case BMPInfoHeader.BI_BITFIELDS:
+            switch(ih.getBitCount()){
+            case 16:
+                return new DecodeBF16(fh, ih, false);
+
+            case 32:
+                return new DecodeBF32(fh, ih, false);
+
+            default:
+                return null;
+            }
+
+        default:
+            return null;
+        }
+    }
+
+    /**
+     * The image decoder.
+     */
+    public abstract BufferedImage decode(ImageInputStream in)
+        throws IOException, BMPException;
+
+    /**
+     * Reads r,g,b bit masks from an inputstream
+     */
+    protected int[] readBitMasks(ImageInputStream in) throws IOException {
+        int[] bitmasks = new int[3];
+        byte[] temp = new byte[12];
+        if(in.read(temp) != 12)
+            throw new IOException("Couldn't read bit masks.");
+        offset += 12;
+
+        ByteBuffer buf = ByteBuffer.wrap(temp);
+        buf.order(ByteOrder.LITTLE_ENDIAN);
+        bitmasks[0] = buf.getInt();
+        bitmasks[1] = buf.getInt();
+        bitmasks[2] = buf.getInt();
+        return bitmasks;
+    }
+
+    /**
+     * Reads an N-color palette from an inputstream in RGBQUAD format and
+     * returns an equivalent ColorModel object
+     */
+    protected IndexColorModel readPalette(ImageInputStream in) throws IOException {
+        int N = infoHeader.getNumberOfPaletteEntries();
+        byte[] r = new byte[N];
+        byte[] g = new byte[N];
+        byte[] b = new byte[N];
+        for(int i=0;i<N;i++){
+            byte[] RGBquad = new byte[4];
+            if(in.read(RGBquad) != 4)
+                throw new IOException("Error reading palette information.");
+            // RGBQUAD structure is b,g,r,0
+            r[i] = RGBquad[2];
+            g[i] = RGBquad[1];
+            b[i] = RGBquad[0];
+        }
+
+        offset += 4*N;
+        return new IndexColorModel(8, N, r, g, b);
+    }
+
+    /**
+     * Read bytes to the start of the image data
+     */
+    protected void skipToImage(ImageInputStream in) throws IOException {
+        byte[] d = new byte[1];
+        long n = fileHeader.getOffset() - offset;
+        for(int i=0;i<n;i++)
+            in.read(d);
+    }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/BMPEncoder.java b/libjava/classpath/gnu/javax/imageio/bmp/BMPEncoder.java
new file mode 100644
index 000000000..d7c54c0d6
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/BMPEncoder.java
@@ -0,0 +1,119 @@
+/* BMPEncoder.java --
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageOutputStream;
+
+public abstract class BMPEncoder
+{
+
+  /**
+   * Constructs a new BMPEncoder.
+   */
+  public BMPEncoder()
+  {
+    // Nothing to do here.
+  }
+
+  /**
+   * Determines the coding type of the bitmap and returns the corresponding
+   * encoder.
+   *
+   * @param fh - the file header
+   * @param ih - the info header
+   * @return the appropriate encoder
+   */
+  public static BMPEncoder getEncoder(BMPFileHeader fh, BMPInfoHeader ih)
+  {
+    switch (ih.getCompression())
+      {
+        case BMPInfoHeader.BI_RGB:
+        switch (ih.getBitCount())
+          {
+          case 32:
+            return new EncodeRGB32(fh, ih);
+
+          case 24:
+            return new EncodeRGB24(fh, ih);
+
+          case 16:
+            return new EncodeRGB16(fh, ih);
+
+          case 8:
+            return new EncodeRGB8(fh, ih);
+
+          case 4:
+            return new EncodeRGB4(fh, ih);
+
+          case 1:
+            return new EncodeRGB1(fh, ih);
+
+          default:
+            return null;
+          }
+      case BMPInfoHeader.BI_RLE4:
+        return new EncodeRLE4(fh, ih);
+
+      case BMPInfoHeader.BI_RLE8:
+        return new EncodeRLE8(fh, ih);
+      default:
+        return null;
+      }
+  }
+
+  /**
+   * The image encoder.
+   *
+   * @param o - the image output stream
+   * @param streamMetadata - metadata associated with this stream, or
+   * null
+   * @param image - an IIOImage containing image data, metadata and
+   * thumbnails to be written
+   * @param param - image writing parameters, or null
+   * @exception IOException if a write error occurs
+   */
+  public abstract void encode(ImageOutputStream o, IIOMetadata streamMetadata,
+                              IIOImage image, ImageWriteParam param)
+      throws IOException;
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/BMPException.java b/libjava/classpath/gnu/javax/imageio/bmp/BMPException.java
new file mode 100644
index 000000000..0ba3c6c74
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/BMPException.java
@@ -0,0 +1,47 @@
+/* BMPException.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import javax.imageio.IIOException;
+
+public class BMPException extends IIOException {
+
+    public BMPException(String message){
+        super(message);
+    }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/BMPFileHeader.java b/libjava/classpath/gnu/javax/imageio/bmp/BMPFileHeader.java
new file mode 100644
index 000000000..0cfd72323
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/BMPFileHeader.java
@@ -0,0 +1,151 @@
+/* BMPFileHeader.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.awt.image.RenderedImage;
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+
+import javax.imageio.IIOImage;
+import javax.imageio.stream.ImageInputStream;
+import javax.imageio.stream.ImageOutputStream;
+
+public class BMPFileHeader {
+    /** Header signature, always 'BM' */
+    private final static short bfType = 0x424d;
+
+    /** Bitmap file size, in bytes. */
+    protected long bfSize;
+
+    /** Offset from the beginning of the file to the bitmap data */
+    protected long bfOffBits;
+
+    /** BITMAPFILEHEADER is 14 bytes */
+    public static final int SIZE = 14;
+    private static final int BITMAPINFOHEADER_SIZE = 40;
+
+    /**
+     * Creates the header from an input stream, which is not closed.
+     *
+     * @throws IOException if an I/O error occured.
+     * @throws BMPException if the header was invalid
+     */
+    public BMPFileHeader(ImageInputStream in) throws IOException, BMPException {
+        byte[] data = new byte[SIZE];
+
+        if (in.read(data) != SIZE)
+            throw new IOException("Couldn't read header.");
+        ByteBuffer buf = ByteBuffer.wrap(data);
+
+        if(buf.getShort(0) != bfType)
+            throw new BMPException("Not a BMP file.");
+
+        buf.order(ByteOrder.LITTLE_ENDIAN);
+
+        // get size (keep unsigned)
+        bfSize = ((long)buf.getInt(2) & (0xFFFFFFFF));
+
+        // Two reserved shorts are here, and should be zero,
+        // perhaps they should be tested to be zero, but I don't
+        // feel this strictness is necessary.
+
+        bfOffBits = ((long)buf.getInt(10) & (0xFFFFFFFF));
+    }
+
+    /**
+     * Creates the header from an output stream, which is not closed.
+     *
+     * @param out - the image output stream
+     * @param im - the image
+     * @throws IOException if an I/O error occured.
+     */
+  public BMPFileHeader(ImageOutputStream out, IIOImage im) throws IOException
+  {
+    RenderedImage img = im.getRenderedImage();
+    int w = img.getWidth();
+    int h = img.getHeight();
+
+    bfOffBits = SIZE + BITMAPINFOHEADER_SIZE;
+    bfSize = ((w * h) * 3) + ((4 - ((w * 3) % 4)) * h) + bfOffBits;
+
+    write(out);
+  }
+
+    /**
+     * Writes the header to an output stream, which is not closed or flushed.
+     *
+     * @throws IOException if an I/O error occured.
+     */
+    public void write(ImageOutputStream out) throws IOException {
+        ByteBuffer buf = ByteBuffer.allocate(SIZE);
+        buf.putShort(0, bfType); // ID
+        buf.putInt(2, (int)(bfSize & (0xFFFFFFFF))); // size
+        buf.putInt(6, 0); // 4 reserved bytes set to zero
+        buf.putInt(7, (int)(bfOffBits & (0xFFFFFFFF))); // size
+        out.write(buf.array());
+    }
+
+    /**
+     * Sets the file size
+     */
+    public void setSize(long size){
+        bfSize = size;
+    }
+
+    /**
+     * Sets the bitmap offset within the file
+     */
+    public void setOffset(long offset){
+        bfOffBits = offset;
+    }
+
+    /**
+     * Gets the file size
+     */
+    public long getSize(){
+        return bfSize;
+    }
+
+    /**
+     * Gets the bitmap offset within the file
+     */
+    public long getOffset(){
+        return bfOffBits;
+    }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/BMPImageReader.java b/libjava/classpath/gnu/javax/imageio/bmp/BMPImageReader.java
new file mode 100644
index 000000000..7b136bdf5
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/BMPImageReader.java
@@ -0,0 +1,148 @@
+/* BMPImageReader.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.*;
+import javax.imageio.spi.*;
+import javax.imageio.metadata.*;
+import javax.imageio.stream.ImageInputStream;
+import java.util.Iterator;
+import java.awt.image.BufferedImage;
+
+public class BMPImageReader extends ImageReader {
+    private BMPInfoHeader infoHeader;
+    private BMPFileHeader fileHeader;
+    private BMPDecoder decoder;
+
+    protected BMPImageReader(ImageReaderSpi originatingProvider){
+        super(originatingProvider);
+        infoHeader = null;
+        fileHeader = null;
+        decoder = null;
+    }
+
+    private void validateIndex(int imageIndex)
+        throws IndexOutOfBoundsException {
+        if (imageIndex != 0)
+            throw new IndexOutOfBoundsException("Invalid image index.");
+    }
+
+    public void setInput(Object input) {
+        super.setInput(input);
+    }
+
+    public void setInput(Object input,
+                         boolean seekForwardOnly,
+                         boolean ignoreMetadata) {
+        super.setInput(input, seekForwardOnly, ignoreMetadata);
+    }
+
+    public void setInput(Object input, boolean isStreamable) {
+        super.setInput(input, isStreamable);
+
+        if (!(input instanceof ImageInputStream))
+            throw new IllegalArgumentException("Input not an ImageInputStream.");
+    }
+
+    private void checkStream() throws IOException {
+        if (!(input instanceof ImageInputStream))
+            throw new IllegalStateException("Input not an ImageInputStream.");
+        if(input == null)
+            throw new IllegalStateException("No input stream.");
+
+    }
+
+    private void readHeaders() throws IOException, IIOException {
+        if(fileHeader != null)
+            return;
+
+        checkStream();
+
+        fileHeader = new BMPFileHeader((ImageInputStream)input);
+        infoHeader = new BMPInfoHeader((ImageInputStream)input);
+        decoder = BMPDecoder.getDecoder(fileHeader, infoHeader);
+    }
+
+    public int getWidth(int imageIndex) throws IOException {
+        validateIndex(imageIndex);
+        readHeaders();
+        return infoHeader.getWidth();
+    }
+
+    public int getHeight(int imageIndex) throws IOException {
+        validateIndex(imageIndex);
+        readHeaders();
+        return infoHeader.getHeight();
+    }
+
+    public Iterator getImageTypes(int imageIndex){
+        validateIndex(imageIndex);
+        return null;
+    }
+
+    /**
+     * Returns the number of images. BMP files can only contain a single one.
+     */
+    public int getNumImages(boolean allowSearch){
+        return 1;
+    }
+
+
+    // FIXME: Support metadata
+    public IIOMetadata getImageMetadata(int imageIndex){
+        validateIndex(imageIndex);
+        return null;
+    }
+
+    // FIXME: Support metadata
+    public IIOMetadata getStreamMetadata(){
+        return null;
+    }
+
+    /**
+     * Reads the image indexed by imageIndex and returns it as
+     * a complete BufferedImage, using a supplied ImageReadParam.
+    */
+    public BufferedImage read(int imageIndex, ImageReadParam param)
+        throws IOException, IIOException {
+        validateIndex(imageIndex);
+        readHeaders();
+        return decoder.decode((ImageInputStream)input);
+    }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/BMPImageReaderSpi.java b/libjava/classpath/gnu/javax/imageio/bmp/BMPImageReaderSpi.java
new file mode 100644
index 000000000..5d027963a
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/BMPImageReaderSpi.java
@@ -0,0 +1,116 @@
+/* BMPImageReaderSpi.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import java.util.Locale;
+import javax.imageio.ImageReader;
+import javax.imageio.spi.ImageReaderSpi;
+import javax.imageio.stream.ImageInputStream;
+
+public class BMPImageReaderSpi extends ImageReaderSpi {
+
+    static final String vendorName = "GNU";
+    static final String version = "0.1";
+    static final String readerClassName =
+        "gnu.javax.imageio.bmp.BMPImageReader";
+    static final String[] names = { "Microsoft Windows BMP" };
+    static final String[] suffixes = { ".bmp", ".bm" };
+    static final String[] MIMETypes = {
+        "image/bmp",
+        "image/x-windows-bmp"};
+    static final String[] writerSpiNames =
+    { "gnu.javax.imageio.bmp.BMPImageWriterSpi" };
+
+    static final boolean supportsStandardStreamMetadataFormat = false;
+    static final String nativeStreamMetadataFormatName = null;
+    static final String nativeStreamMetadataFormatClassName = null;
+    static final String[] extraStreamMetadataFormatNames = null;
+    static final String[] extraStreamMetadataFormatClassNames = null;
+    static final boolean supportsStandardImageMetadataFormat = false;
+    static final String nativeImageMetadataFormatName = null;
+    static final String nativeImageMetadataFormatClassName = null;
+    static final String[] extraImageMetadataFormatNames = null;
+    static final String[] extraImageMetadataFormatClassNames = null;
+
+    public BMPImageReaderSpi() {
+        super(vendorName, version,
+              names, suffixes, MIMETypes,
+              readerClassName,
+              STANDARD_INPUT_TYPE, // Accept ImageInputStreams
+              writerSpiNames,
+              supportsStandardStreamMetadataFormat,
+              nativeStreamMetadataFormatName,
+              nativeStreamMetadataFormatClassName,
+              extraStreamMetadataFormatNames,
+              extraStreamMetadataFormatClassNames,
+              supportsStandardImageMetadataFormat,
+              nativeImageMetadataFormatName,
+              nativeImageMetadataFormatClassName,
+              extraImageMetadataFormatNames,
+              extraImageMetadataFormatClassNames);
+    }
+
+    public String getDescription(Locale locale) {
+        return "Microsoft BMP v3";
+    }
+
+    public boolean canDecodeInput(Object input)
+        throws IOException {
+        if (!(input instanceof ImageInputStream))
+            return false;
+
+        ImageInputStream in = (ImageInputStream)input;
+        boolean retval;
+
+        in.mark();
+        try {
+            new BMPFileHeader(in);
+            retval = true;
+        } catch(BMPException e){
+            retval = false;
+        }
+        in.reset();
+
+        return retval;
+    }
+
+    public ImageReader createReaderInstance(Object extension) {
+        return new BMPImageReader(this);
+    }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/BMPImageWriter.java b/libjava/classpath/gnu/javax/imageio/bmp/BMPImageWriter.java
new file mode 100644
index 000000000..407e66a72
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/BMPImageWriter.java
@@ -0,0 +1,195 @@
+/* BMPImageWriter.java --
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageTypeSpecifier;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.ImageWriter;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.spi.ImageWriterSpi;
+import javax.imageio.stream.ImageOutputStream;
+
+public class BMPImageWriter
+    extends ImageWriter
+{
+  protected BMPEncoder encoder;
+  protected BMPFileHeader fileHeader;
+  protected BMPInfoHeader infoHeader;
+
+  /**
+   * Construct an bmp image writer.
+   *
+   * @param originatingProvider - the provider that is constructing this image
+   *          writer, or null
+   */
+  protected BMPImageWriter(ImageWriterSpi originatingProvider)
+  {
+    super(originatingProvider);
+    encoder = null;
+    fileHeader = null;
+    infoHeader = null;
+  }
+
+  /**
+   * Convert IIOMetadata from an input reader format, returning an IIOMetadata
+   * suitable for use by an image writer. The ImageTypeSpecifier specifies the
+   * destination image type. An optional ImageWriteParam argument is available
+   * in case the image writing parameters affect the metadata conversion.
+   *
+   * @param inData - the metadata coming from an image reader
+   * @param imageType - the output image type of the writer
+   * @param param - the image writing parameters or null
+   * @return the converted metadata that should be used by the image writer, or
+   *         null if this ImageTranscoder has no knowledge of the input metadata
+   * @exception IllegalArgumentException if either inData or imageType is null
+   */
+  public IIOMetadata convertImageMetadata(IIOMetadata inData,
+                                          ImageTypeSpecifier imageType,
+                                          ImageWriteParam param)
+  {
+    // FIXME: Support metadata.
+    if (inData == null || imageType == null)
+      throw new IllegalArgumentException("IIOMetadata and ImageTypeSpecifier cannot be null.");
+    return null;
+  }
+
+  /**
+   * Convert IIOMetadata from an input stream format, returning an
+   * IIOMetadata suitable for use by an image writer.
+   *
+   * An optional ImageWriteParam argument is available in case the
+   * image writing parameters affect the metadata conversion.
+   *
+   * @param inData - the metadata coming from an input image stream
+   * @param param - the image writing parameters or null
+   * @return the converted metadata that should be used by the image
+   * writer, or null if this ImageTranscoder has no knowledge of the
+   * input metadata
+   *
+   * @exception IllegalArgumentException if inData is null
+   */
+  public IIOMetadata convertStreamMetadata (IIOMetadata inData,
+                                 ImageWriteParam param)
+  {
+    // FIXME: Support metadata.
+    if (inData == null)
+      throw new IllegalArgumentException("IIOMetadata cannot be null.");
+    return null;
+  }
+
+  /**
+   * Get a metadata object appropriate for encoding an image specified
+   * by the given image type specifier and optional image write
+   * parameters.
+   *
+   * @param imageType - an image type specifier
+   * @param param - image writing parameters, or null
+   * @return a metadata object appropriate for encoding an image of
+   * the given type with the given parameters
+   */
+  public IIOMetadata getDefaultImageMetadata (ImageTypeSpecifier imageType, ImageWriteParam param)
+  {
+    // FIXME: Support metadata.
+    return null;
+  }
+
+  /**
+   * Get a metadata object appropriate for encoding the default image
+   * type handled by this writer, optionally considering image write
+   * parameters.
+   *
+   * @param param - image writing parameters, or null
+   * @return a metadata object appropriate for encoding an image of
+   * the default type with the given parameters
+   */
+  public IIOMetadata getDefaultStreamMetadata (ImageWriteParam param)
+  {
+    // FIXME: Support metadata.
+    return null;
+  }
+
+  /**
+   * Write an image stream, including thumbnails and metadata to the
+   * output stream.  The output must have been set prior to this
+   * method being called.  Metadata associated with the stream may be
+   * supplied, or it can be left null.  IIOImage may contain raster
+   * data if this writer supports rasters, or it will contain a
+   * rendered image.  Thumbnails are resized if need be.  Image
+   * writing parameters may be specified to affect writing, or may be
+   * left null.
+   *
+   * @param streamMetadata - metadata associated with this stream, or
+   * null
+   * @param image - an IIOImage containing image data, metadata and
+   * thumbnails to be written
+   * @param param - image writing parameters, or null
+   * @exception IOException if a write error occurs
+   * @throws BMPException if the encoder has not been initialized.
+   */
+  public void write(IIOMetadata streamMetadata, IIOImage image,
+                    ImageWriteParam param) throws IOException, BMPException
+  {
+    checkStream();
+    ImageOutputStream out = (ImageOutputStream) output;
+    fileHeader = new BMPFileHeader(out, image);
+    infoHeader = new BMPInfoHeader(out, image, param);
+    encoder = BMPEncoder.getEncoder(fileHeader, infoHeader);
+
+    if (encoder != null)
+      encoder.encode(out, streamMetadata, image, param);
+    else
+      throw new BMPException("Encoder has not been initialized.");
+  }
+
+  /**
+   * Checks the output stream.
+   *
+   * @throws IOException if there is an error with the output stream
+   */
+  private void checkStream() throws IOException
+  {
+    if (!(output instanceof ImageOutputStream))
+      throw new IllegalStateException("Output not an ImageOutputStream.");
+    if (output == null)
+      throw new IllegalStateException("No output stream.");
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/BMPImageWriterSpi.java b/libjava/classpath/gnu/javax/imageio/bmp/BMPImageWriterSpi.java
new file mode 100644
index 000000000..e158dcfd7
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/BMPImageWriterSpi.java
@@ -0,0 +1,148 @@
+/* BMPImageWriterSpi.java --
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.util.Locale;
+
+import javax.imageio.ImageTypeSpecifier;
+import javax.imageio.ImageWriter;
+import javax.imageio.spi.ImageWriterSpi;
+
+public class BMPImageWriterSpi
+    extends ImageWriterSpi
+{
+
+  static final String vendorName = "GNU";
+  static final String version = "0.1";
+  static final String writerClassName = "gnu.javax.imageio.bmp.BMPImageWriter";
+  static final String[] names = { "bmp", "BMP", "Microsoft Windows BMP" };
+  static final String[] suffixes = { ".bmp", ".bm" };
+  static final String[] MIMETypes = { "image/bmp", "image/x-windows-bmp" };
+  static final String[] readerSpiNames = { "gnu.javax.imageio.bmp.BMPImageReaderSpi" };
+
+  static final boolean supportsStandardStreamMetadataFormat = false;
+  static final String nativeStreamMetadataFormatName = null;
+  static final String nativeStreamMetadataFormatClassName = null;
+  static final String[] extraStreamMetadataFormatNames = null;
+  static final String[] extraStreamMetadataFormatClassNames = null;
+  static final boolean supportsStandardImageMetadataFormat = false;
+  static final String nativeImageMetadataFormatName = null;
+  static final String nativeImageMetadataFormatClassName = null;
+  static final String[] extraImageMetadataFormatNames = null;
+  static final String[] extraImageMetadataFormatClassNames = null;
+
+  private BMPImageWriter writerInstance;
+
+  public BMPImageWriterSpi()
+  {
+    super(vendorName, version, names, suffixes, MIMETypes, writerClassName,
+          STANDARD_OUTPUT_TYPE, readerSpiNames, supportsStandardStreamMetadataFormat,
+          nativeStreamMetadataFormatName, nativeStreamMetadataFormatClassName,
+          extraStreamMetadataFormatNames, extraStreamMetadataFormatClassNames,
+          supportsStandardImageMetadataFormat, nativeImageMetadataFormatName,
+          nativeImageMetadataFormatClassName, extraImageMetadataFormatNames,
+          extraImageMetadataFormatClassNames);
+  }
+
+  /**
+   * Returns true if the image can be encoded.
+   *
+   * @param type - the image type specifier.
+   * @return true if image can be encoded, otherwise false.
+   */
+  public boolean canEncodeImage(ImageTypeSpecifier type)
+  {
+    if (type == null)
+      return false;
+
+    BMPInfoHeader ih = writerInstance.infoHeader;
+    if (ih != null)
+      {
+        int compressionType = ih.getCompression();
+        int bytes = type.getColorModel().getPixelSize();
+        if ((compressionType == BMPInfoHeader.BI_RLE4 && (bytes != 4 || bytes != 8))
+            || (compressionType == BMPInfoHeader.BI_RGB && ((bytes != 1
+                                                             || bytes != 4
+                                                             || bytes != 8
+                                                             || bytes != 16
+                                                             || bytes != 24
+                                                             || bytes != 32))))
+          return false;
+      }
+    return true;
+  }
+
+  /**
+   * Creates an instance of ImageWriter using the given extension.
+   *
+   * @param extension - the provider that is constructing this image writer, or
+   *          null
+   */
+  public ImageWriter createWriterInstance(Object extension)
+  {
+    if (extension != null && extension instanceof ImageWriterSpi)
+      writerInstance = new BMPImageWriter((ImageWriterSpi) extension);
+    else
+      writerInstance = new BMPImageWriter(this);
+    return writerInstance;
+  }
+
+  /**
+   * Gets the instance of ImageWriter, if already created.
+   */
+  public BMPImageWriter getWriterInstance()
+  {
+    if (writerInstance != null)
+      return writerInstance;
+    return (BMPImageWriter) createWriterInstance(null);
+  }
+
+  /**
+   * Returns a short description of this service provider that can be
+   * presented to a human user.
+   *
+   * @param locale - the locale for which the description string should
+   * be localized.
+   */
+  public String getDescription(Locale locale)
+  {
+    return "Microsoft BMP v3";
+  }
+
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/BMPInfoHeader.java b/libjava/classpath/gnu/javax/imageio/bmp/BMPInfoHeader.java
new file mode 100644
index 000000000..e14afdb04
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/BMPInfoHeader.java
@@ -0,0 +1,317 @@
+/* BMPInfoHeader.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.awt.Dimension;
+import java.awt.image.ColorModel;
+import java.awt.image.RenderedImage;
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.stream.ImageInputStream;
+import javax.imageio.stream.ImageOutputStream;
+
+public class BMPInfoHeader
+{
+    /** Size of the bitmap info header */
+  protected int biSize;
+
+  /** Pixel width of the bitmap */
+  protected int biWidth;
+
+  /** Pixel height of the bitmap */
+  protected int biHeight;
+
+  /** Number of bitplanes = 1 */
+  protected short biPlanes;
+
+  /** Number of bpp = 1,4,8,24 */
+  protected short biBitCount;
+
+  /** Compression type, RGB8, RLE8, RLE4, BITFIELDS */
+  protected int biCompression;
+
+  /** Byte size of the uncompressed bitmap, can be 0. */
+  protected int biSizeImage;
+
+  /** X resolution, dots per meter */
+  protected int biXPelsPerMeter;
+
+  /** Y resolution, dots per meter */
+  protected int biYPelsPerMeter;
+
+  /** Number of colors used (palette only, can be 0 for all) */
+  protected int biClrUsed;
+
+  /** Number of 'important' colors, 0 for all */
+  protected int biClrImportant;
+
+  /** BITMAPINFOHEADER is 40 bytes */
+  public static final int SIZE = 40;
+
+    /**
+     * Compression types
+     */
+    public static final int BI_RGB = 0;
+    public static final int BI_RLE8 = 1;
+    public static final int BI_RLE4 = 2;
+    public static final int BI_BITFIELDS = 3;
+
+    /**
+     * Creates the header from an input stream, which is not closed.
+     *
+     * @param in - the image input stream
+     * @throws IOException if an I/O error occured.
+     * @throws BMPException if the header was invalid
+     */
+  public BMPInfoHeader(ImageInputStream in) throws IOException, BMPException
+  {
+    byte[] data = new byte[SIZE];
+
+    if (in.read(data) != SIZE)
+      throw new IOException("Couldn't read header.");
+    ByteBuffer buf = ByteBuffer.wrap(data);
+    buf.order(ByteOrder.LITTLE_ENDIAN);
+
+    int n;
+    if ((n = buf.getInt()) != SIZE)
+      throw new BMPException("Invalid BITMAPINFOHEADER size: " + n);
+
+    biWidth = buf.getInt();
+    biHeight = buf.getInt();
+    biPlanes = buf.getShort();
+    setBitCount(buf.getShort());
+    setCompression(buf.getInt());
+    biSizeImage = buf.getInt();
+    biXPelsPerMeter = buf.getInt();
+    biYPelsPerMeter = buf.getInt();
+    biClrUsed = buf.getInt();
+    biClrImportant = buf.getInt();
+  }
+
+  /**
+   * Creates the info header from an output stream, which is not closed.
+   *
+   * @param out - the image output stream
+   * @param im - the image
+   * @param param - the image write param.
+   * @throws IOException if an I/O error occured.
+   */
+  public BMPInfoHeader(ImageOutputStream out, IIOImage im, ImageWriteParam param) throws IOException
+  {
+    RenderedImage img = im.getRenderedImage();
+    ColorModel cMod = img.getColorModel();
+
+    biSize = SIZE;
+    biWidth = img.getWidth();
+    biHeight = img.getHeight();
+    biPlanes = 1;
+
+    if (param != null && param.canWriteCompressed())
+      {
+        String compType = param.getCompressionType();
+        if (compType.equals("BI_RLE8"))
+          {
+            biCompression = BI_RLE8;
+            biBitCount = 8;
+          }
+        else if (compType.equals("BI_RLE4"))
+          {
+            biCompression = BI_RLE4;
+            biBitCount = 4;
+          }
+        else
+          {
+            biCompression = BI_RGB;
+            biBitCount = (short) cMod.getPixelSize();
+          }
+      }
+    else
+      {
+        biBitCount = (short) cMod.getPixelSize();
+        biCompression = BI_RGB;
+      }
+
+    biXPelsPerMeter = 0x0;
+    biYPelsPerMeter = 0x0;
+    biClrUsed = 0;
+    biClrImportant = 0;
+    biSizeImage = ((biWidth * biHeight) * 3)
+                  + ((4 - ((biWidth * 3) % 4)) * biHeight);
+    out.write(intToDWord(biSize));
+    out.write(intToDWord(biWidth));
+    out.write(intToDWord(biHeight));
+    out.write(intToWord(biPlanes));
+    out.write(intToWord(biBitCount));
+    out.write(intToDWord(biCompression));
+    out.write(intToDWord(biSizeImage));
+    out.write(intToDWord(biXPelsPerMeter));
+    out.write(intToDWord(biYPelsPerMeter));
+    out.write(intToDWord(biClrUsed));
+    out.write(intToDWord(biClrImportant));
+  }
+
+  /**
+   * Converts an int to a word, where the return value is stored in a
+   * 2-byte array.
+   *
+   * @param val - the value to convert
+   * @return the array
+   */
+  private byte[] intToWord(int val)
+  {
+    byte b[] = new byte[2];
+    b[0] = (byte) (val & 0x00FF);
+    b[1] = (byte) ((val >> 8) & 0x00FF);
+    return b;
+  }
+
+  /**
+   * Converts an int to a double word, where the return value is
+   * stored in a 4-byte array.
+   *
+   * @param val - the value to convert
+   * @return the array
+   */
+  private byte[] intToDWord(int val)
+  {
+    byte b[] = new byte[4];
+    b[0] = (byte) (val & 0x00FF);
+    b[1] = (byte) ((val >> 8) & 0x000000FF);
+    b[2] = (byte) ((val >> 16) & 0x000000FF);
+    b[3] = (byte) ((val >> 24) & 0x000000FF);
+    return b;
+  }
+
+
+  public void setBitCount(short bitcount) throws BMPException
+  {
+    switch (bitcount)
+      {
+      case 1:
+      case 4:
+      case 8:
+      case 16:
+      case 24:
+      case 32:
+        biBitCount = bitcount;
+        break;
+
+      default:
+        throw new BMPException("Invalid number of bits per pixel: " + bitcount);
+      }
+  }
+
+  public short getBitCount()
+  {
+    return biBitCount;
+  }
+
+  public void setCompression(int compression) throws BMPException
+  {
+    switch (compression)
+      {
+      case BI_RLE8:
+        if (getBitCount() != 8)
+          throw new BMPException("Invalid number of bits per pixel.");
+        biCompression = compression;
+        break;
+      case BI_RLE4:
+        if (getBitCount() != 4)
+          throw new BMPException("Invalid number of bits per pixel.");
+        biCompression = compression;
+        break;
+
+      case BI_RGB:
+      case BI_BITFIELDS:
+        biCompression = compression;
+        break;
+
+      default:
+        throw new BMPException("Unknown bitmap compression type.");
+      }
+  }
+
+  public int getNumberOfPaletteEntries()
+  {
+    if (biClrUsed == 0)
+      switch (biBitCount)
+        {
+        case 1:
+          return 2;
+        case 4:
+          return 16;
+        case 8:
+          return 256;
+
+        default: // should not happen
+          return 0;
+        }
+
+    return biClrUsed;
+  }
+
+  public int getCompression()
+  {
+    return biCompression;
+  }
+
+  public Dimension getSize()
+  {
+    return new Dimension(biWidth, biHeight);
+  }
+
+  public int getWidth()
+  {
+    return biWidth;
+  }
+
+  public int getHeight()
+  {
+    return biHeight;
+  }
+
+  public void setSize(Dimension d)
+  {
+    biWidth = (int) d.getWidth();
+    biHeight = (int) d.getHeight();
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/DecodeBF16.java b/libjava/classpath/gnu/javax/imageio/bmp/DecodeBF16.java
new file mode 100644
index 000000000..2f94ac613
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/DecodeBF16.java
@@ -0,0 +1,99 @@
+/* DecodeBF16.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+import java.awt.image.BufferedImage;
+import java.awt.image.ColorModel;
+import java.awt.image.DirectColorModel;
+import java.awt.image.Raster;
+import java.awt.image.WritableRaster;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferUShort;
+import java.awt.image.SinglePixelPackedSampleModel;
+import java.awt.image.SampleModel;
+import java.awt.Dimension;
+
+public class DecodeBF16 extends BMPDecoder {
+    private int[] bitmasks;
+    private boolean useDefaultMasks;
+
+    public DecodeBF16(BMPFileHeader fh, BMPInfoHeader ih,
+                      boolean udm){
+        super(fh,ih);
+
+        useDefaultMasks = udm;
+        if(useDefaultMasks) // 5-6-5 mask, B,G,R
+            bitmasks = new int[] { 0x00F800, 0x0007E0, 0x00001F };
+    }
+
+    public BufferedImage decode(ImageInputStream in) throws IOException, BMPException {
+        if(!useDefaultMasks)
+            bitmasks = readBitMasks(in);
+        skipToImage(in);
+
+        Dimension d = infoHeader.getSize();
+        int h = (int)d.getHeight();
+        int w = (int)d.getWidth();
+
+        // BMP scanlines are padded to dword offsets
+        int scansize = (w + (w&1)) << 1;
+        short[] data = new short[w*h];
+
+        for(int y=h-1;y>=0;y--){
+            byte[] scanline = new byte[scansize];
+            if(in.read(scanline) != scansize)
+                throw new IOException("Couldn't read image data.");
+
+            for(int x=0;x<w;x++)
+                data[x + y*w] = (short)((scanline[x*2] & (0xFF)) |
+                                      ((scanline[x*2+1] & (0xFF)) << 8));
+        }
+
+        ColorModel cm = new DirectColorModel(16,
+                                             bitmasks[0], bitmasks[1], bitmasks[2]);
+        SampleModel sm = new SinglePixelPackedSampleModel(DataBuffer.TYPE_USHORT,
+                                                          w, h,
+                                                          bitmasks);
+        DataBuffer db = new DataBufferUShort(data, w*h, 0);
+        WritableRaster raster = Raster.createWritableRaster(sm, db, null);
+        return new BufferedImage(cm, raster, false, null);
+    }
+
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/DecodeBF32.java b/libjava/classpath/gnu/javax/imageio/bmp/DecodeBF32.java
new file mode 100644
index 000000000..bfa469488
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/DecodeBF32.java
@@ -0,0 +1,103 @@
+/* DecodeBF32.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+import java.awt.image.BufferedImage;
+import java.awt.image.ColorModel;
+import java.awt.image.DirectColorModel;
+import java.awt.image.Raster;
+import java.awt.image.WritableRaster;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferInt;
+import java.awt.image.SinglePixelPackedSampleModel;
+import java.awt.image.SampleModel;
+import java.awt.Dimension;
+
+public class DecodeBF32 extends BMPDecoder {
+    private int[] bitmasks;
+    private boolean useDefaultMasks;
+
+    public DecodeBF32(BMPFileHeader fh, BMPInfoHeader ih,
+                      boolean udm){
+        super(fh,ih);
+
+        useDefaultMasks = udm;
+        if(useDefaultMasks)
+            bitmasks = new int[] { 0x00FF0000, 0x0000FF00, 0x000000FF };
+    }
+
+    public BufferedImage decode(ImageInputStream in) throws IOException, BMPException {
+        if(!useDefaultMasks)
+            bitmasks = readBitMasks(in);
+        skipToImage(in);
+
+        Dimension d = infoHeader.getSize();
+        int h = (int)d.getHeight();
+        int w = (int)d.getWidth();
+
+        // BMP scanlines are padded to dword offsets
+        int scansize = w << 2;
+        int[] data = new int[w*h];
+
+
+        for(int y=h-1;y>=0;y--){
+            byte[] scanline = new byte[scansize];
+            if(in.read(scanline) != scansize)
+                throw new IOException("Couldn't read image data.");
+
+            for(int x=0;x<w;x++)
+                data[x + y*w] = ((scanline[x<<2] & (0xFF)) |
+                                 ((scanline[(x<<2)+1] & (0xFF)) << 8) |
+                                 ((scanline[(x<<2)+2] & (0xFF)) << 16) |
+                                 ((scanline[(x<<2)+3] & (0xFF)) << 24));
+        }
+
+        ColorModel cm = new DirectColorModel(32,
+                                             bitmasks[0], bitmasks[1], bitmasks[2]);
+        SampleModel sm = new SinglePixelPackedSampleModel(DataBuffer.TYPE_INT,
+                                                          w, h,
+                                                          bitmasks);
+        DataBuffer db = new DataBufferInt(data, w*h);
+        WritableRaster raster = Raster.createWritableRaster(sm, db, null);
+
+        return new BufferedImage(cm, raster, false, null);
+    }
+
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB1.java b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB1.java
new file mode 100644
index 000000000..ca81bc433
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB1.java
@@ -0,0 +1,94 @@
+/* DecodeRGB1.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+import java.awt.image.BufferedImage;
+import java.awt.image.IndexColorModel;
+import java.awt.image.Raster;
+import java.awt.image.WritableRaster;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferByte;
+import java.awt.image.MultiPixelPackedSampleModel;
+import java.awt.image.SampleModel;
+import java.awt.Dimension;
+
+public class DecodeRGB1 extends BMPDecoder {
+
+    public DecodeRGB1(BMPFileHeader fh, BMPInfoHeader ih){
+        super(fh, ih);
+    }
+
+    public BufferedImage decode(ImageInputStream in)
+        throws IOException, BMPException {
+
+        IndexColorModel palette = readPalette(in);
+        skipToImage(in);
+
+        Dimension d = infoHeader.getSize();
+        int h = (int)d.getHeight();
+        int w = (int)d.getWidth();
+        int size = (w*h)>>3;
+
+        int scansize = w>>3;
+        byte[] data = new byte[size];
+
+        for(int y=h-1;y>=0;y--){
+            // Scanlines are padded to dword boundries
+            int readsize = scansize;
+            if((readsize & 3) != 0) readsize += (4 - (scansize & 3));
+
+            byte[] scanline = new byte[readsize];
+            if(in.read(scanline) != readsize)
+                throw new IOException("Couldn't read image data.");
+
+            for(int x=0;x<scansize;x++)
+                data[x + y*scansize] = scanline[x];
+        }
+
+        SampleModel sm = new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE,
+                                                         w, h, 1);
+
+        DataBuffer db = new DataBufferByte(data, size, 0);
+        WritableRaster raster = Raster.createWritableRaster(sm, db, null);
+
+        return new BufferedImage(palette, raster, false, null);
+    }
+
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB24.java b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB24.java
new file mode 100644
index 000000000..0ddcc434e
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB24.java
@@ -0,0 +1,77 @@
+/* DecodeRGB24.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+import java.awt.image.BufferedImage;
+import java.awt.Dimension;
+
+public class DecodeRGB24 extends BMPDecoder {
+
+    public DecodeRGB24(BMPFileHeader fh, BMPInfoHeader ih){
+        super(fh, ih);
+    }
+
+    public BufferedImage decode(ImageInputStream in) throws IOException, BMPException {
+        skipToImage(in);
+
+        Dimension d = infoHeader.getSize();
+        int h = (int)d.getHeight();
+        int w = (int)d.getWidth();
+        BufferedImage image = new BufferedImage(w, h,
+                                                BufferedImage.TYPE_INT_RGB);
+        // BMP scanlines are padded to dword offsets
+        int scansize = ((w*3 & 3) != 0)? w*3 + 4 - (w*3 & 3): w*3;
+        int[] data = new int[w*h];
+
+        for(int y=h-1;y>=0;y--){
+            byte[] scanline = new byte[scansize];
+            if(in.read(scanline) != scansize)
+                throw new IOException("Couldn't read image data.");
+
+            for(int x=0;x<w;x++)
+                data[x + y*w] = scanline[x*3] +
+                    (scanline[x*3+1] << 8) +
+                    (scanline[x*3+2] << 16);
+        }
+        image.setRGB(0, 0, w, h, data, 0, w);
+        return image;
+    }
+
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB4.java b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB4.java
new file mode 100644
index 000000000..a904ef745
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB4.java
@@ -0,0 +1,90 @@
+/* DecodeRGB4.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+import java.awt.image.BufferedImage;
+import java.awt.image.IndexColorModel;
+import java.awt.image.Raster;
+import java.awt.image.WritableRaster;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferByte;
+import java.awt.image.MultiPixelPackedSampleModel;
+import java.awt.image.SampleModel;
+import java.awt.Dimension;
+
+public class DecodeRGB4 extends BMPDecoder {
+
+    public DecodeRGB4(BMPFileHeader fh, BMPInfoHeader ih){
+        super(fh, ih);
+    }
+
+    public BufferedImage decode(ImageInputStream in) throws IOException, BMPException {
+        IndexColorModel palette = readPalette(in);
+        skipToImage(in);
+
+        Dimension d = infoHeader.getSize();
+        int h = (int)d.getHeight();
+        int w = (int)d.getWidth();
+        int size = (w*h) >> 1;
+
+        // Scanline padded to dword offsets
+        int wbytes = (w + (w & 1)) >> 1;
+        int scansize = ((wbytes & 3) != 0)? (wbytes + 4 - (wbytes&3)) : wbytes;
+
+        byte[] data = new byte[wbytes*h];
+
+        for(int y=h-1;y>=0;y--){
+            byte[] scanline = new byte[scansize];
+            if(in.read(scanline) != scansize)
+                throw new IOException("Couldn't read image data.");
+
+            for(int x=0;x<wbytes;x++)
+                data[x + y*wbytes] = scanline[x];
+        }
+        SampleModel sm = new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE,
+                                                         w, h, 4);
+
+        DataBuffer db = new DataBufferByte(data, w*h, 0);
+        WritableRaster raster = Raster.createWritableRaster(sm, db, null);
+
+        return new BufferedImage(palette, raster, false, null);
+    }
+
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB8.java b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB8.java
new file mode 100644
index 000000000..218047e5d
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB8.java
@@ -0,0 +1,88 @@
+/* DecodeRGB8.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+import java.awt.image.BufferedImage;
+import java.awt.image.IndexColorModel;
+import java.awt.image.Raster;
+import java.awt.image.WritableRaster;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferByte;
+import java.awt.image.SinglePixelPackedSampleModel;
+import java.awt.image.SampleModel;
+import java.awt.Dimension;
+
+public class DecodeRGB8 extends BMPDecoder {
+
+    public DecodeRGB8(BMPFileHeader fh, BMPInfoHeader ih){
+        super(fh, ih);
+    }
+
+    public BufferedImage decode(ImageInputStream in) throws IOException, BMPException {
+        IndexColorModel palette = readPalette(in);
+        skipToImage(in);
+
+        Dimension d = infoHeader.getSize();
+        int h = (int)d.getHeight();
+        int w = (int)d.getWidth();
+
+        // BMP scanlines are padded to dword offsets
+        int scansize = ((w & 3) != 0)? w + 4 - (w & 3): w;
+        byte[] data = new byte[w*h];
+
+        for(int y=h-1;y>=0;y--){
+            byte[] scanline = new byte[scansize];
+            if(in.read(scanline) != scansize)
+                throw new IOException("Couldn't read image data.");
+
+            for(int x=0;x<w;x++)
+                data[x + y*w] = scanline[x];
+        }
+
+        SampleModel sm = new SinglePixelPackedSampleModel(DataBuffer.TYPE_BYTE,
+                                                          w, h,
+                                                          new int[] {0xFF});
+        DataBuffer db = new DataBufferByte(data, w*h, 0);
+        WritableRaster raster = Raster.createWritableRaster(sm, db, null);
+
+        return new BufferedImage(palette, raster, false, null);
+    }
+
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/DecodeRLE4.java b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRLE4.java
new file mode 100644
index 000000000..1c116c247
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRLE4.java
@@ -0,0 +1,175 @@
+/* DecodeRLE4.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+import java.awt.image.BufferedImage;
+import java.awt.image.IndexColorModel;
+import java.awt.image.Raster;
+import java.awt.image.WritableRaster;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferByte;
+import java.awt.image.MultiPixelPackedSampleModel;
+import java.awt.image.SampleModel;
+import java.awt.Dimension;
+
+public class DecodeRLE4 extends BMPDecoder {
+
+    public DecodeRLE4(BMPFileHeader fh, BMPInfoHeader ih){
+        super(fh, ih);
+    }
+
+    /**
+     * RLE control codes
+     */
+    private static final byte ESCAPE = (byte)0;
+    private static final byte EOL = (byte)0; // end of line
+    private static final byte EOB = (byte)1; // end of bitmap
+    private static final byte DELTA = (byte)2; // delta
+
+    public BufferedImage decode(ImageInputStream in) throws IOException, BMPException {
+        IndexColorModel palette = readPalette(in);
+        skipToImage(in);
+
+        Dimension d = infoHeader.getSize();
+        int h = (int)d.getHeight();
+        int w = (int)d.getWidth();
+
+        byte[] data = uncompress(w, h, in);
+        SampleModel sm = new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE,
+                                                         w, h, 4);
+
+        DataBuffer db = new DataBufferByte(data, w*h, 0);
+        WritableRaster raster = Raster.createWritableRaster(sm, db, null);
+
+        return new BufferedImage(palette, raster, false, null);
+    }
+
+    private byte[] uncompress(int w, int h, ImageInputStream in)
+        throws BMPException, IOException {
+        byte[] cmd = new byte[2];
+        byte[] data = new byte[w*h>>1];
+        int offIn = 0;
+        int x=0,y=0;
+
+        // width in bytes
+        w += (w&1);
+        w = w >> 1;
+
+        try {
+            while(((x>>1) + y*w) < w*h){
+                if(in.read(cmd) != 2)
+                    throw new IOException("Error reading compressed data.");
+
+                if(cmd[0] == ESCAPE){
+                    switch(cmd[1]){
+                    case EOB: // end of bitmap
+                        return data;
+                    case EOL: // end of line
+                        x = 0;
+                        y++;
+                        break;
+                    case DELTA: // delta
+                        if(in.read(cmd) != 2)
+                            throw new IOException("Error reading compressed data.");
+                        int dx = cmd[0] & (0xFF);
+                        int dy = cmd[1] & (0xFF);
+                        x += dx;
+                        y += dy;
+                        break;
+
+                    default:
+                        // decode a literal run
+                        int length = cmd[1] & (0xFF);
+
+                        // size of run, which is word aligned.
+                        int bytesize = length;
+                        bytesize += (bytesize & 1);
+                        bytesize >>= 1;
+                        bytesize += (bytesize & 1);
+
+                        byte[] run = new byte[bytesize];
+                        if(in.read(run) != bytesize)
+                            throw new IOException("Error reading compressed data.");
+
+                        if((x&1) == 0){
+                            length += (length&1);
+                            length >>= 1;
+                            System.arraycopy(run, 0, data, ((x>>1) + w*(h-y-1)),
+                                             length);
+                        } else {
+                            for(int i=0;i<length;i++){
+                                if((i&1) == 0) // copy high to low
+                                    data[((x+i)>>1) + w*(h-y-1)]
+                                        |= ((run[i>>1]&0xF0) >> 4);
+                                else  // copy low to high
+                                    data[((x+i)>>1) + w*(h-y-1)]
+                                        |= ((run[i>>1]&0x0F) << 4);
+                            }
+                        }
+                        x += cmd[1] & (0xFF);
+                        break;
+                    }
+                } else {
+                    // decode a byte run
+                    int length = cmd[0] & (0xFF);
+                    if((x&1) == 0){
+                        length += (length&1);
+                        length >>= 1;
+                        for(int i=0;i<length;i++)
+                            data[(h-y-1)*w + i + (x >> 1)] = cmd[1];
+                    } else {
+                        for(int i=0;i<length;i++){
+                            if((i&1) == 0) // copy high to low
+                                data[((x+i)>>1) + w*(h-y-1)]
+                                    |= ((cmd[1]&0xF0) >> 4);
+                            else  // copy low to high
+                                data[((x+i)>>1) + w*(h-y-1)]
+                                    |= ((cmd[1]&0x0F) << 4);
+                        }
+                    }
+                    x += cmd[0] & (0xFF);
+                }
+            }
+            return data;
+        } catch(ArrayIndexOutOfBoundsException e){
+            throw new BMPException("Invalid RLE data.");
+        }
+    }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/DecodeRLE8.java b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRLE8.java
new file mode 100644
index 000000000..afc3da89e
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRLE8.java
@@ -0,0 +1,142 @@
+/* DecodeRLE8.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+import java.awt.image.BufferedImage;
+import java.awt.image.IndexColorModel;
+import java.awt.image.Raster;
+import java.awt.image.WritableRaster;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferByte;
+import java.awt.image.SinglePixelPackedSampleModel;
+import java.awt.image.SampleModel;
+import java.awt.Dimension;
+
+public class DecodeRLE8 extends BMPDecoder {
+
+    public DecodeRLE8(BMPFileHeader fh, BMPInfoHeader ih){
+        super(fh, ih);
+    }
+
+    /**
+     * RLE control codes
+     */
+    private static final byte ESCAPE = (byte)0;
+    private static final byte EOL = (byte)0; // end of line
+    private static final byte EOB = (byte)1; // end of bitmap
+    private static final byte DELTA = (byte)2; // delta
+
+    public BufferedImage decode(ImageInputStream in) throws IOException, BMPException {
+        IndexColorModel palette = readPalette(in);
+        skipToImage(in);
+
+        Dimension d = infoHeader.getSize();
+        int h = (int)d.getHeight();
+        int w = (int)d.getWidth();
+
+        byte[] data = uncompress(w, h, in);
+        SampleModel sm = new SinglePixelPackedSampleModel(DataBuffer.TYPE_BYTE,
+                                                          w, h,
+                                                          new int[] {0xFF});
+        DataBuffer db = new DataBufferByte(data, w*h, 0);
+        WritableRaster raster = Raster.createWritableRaster(sm, db, null);
+
+        return new BufferedImage(palette, raster, false, null);
+    }
+
+    private byte[] uncompress(int w, int h, ImageInputStream in)
+        throws BMPException, IOException {
+        byte[] cmd = new byte[2];
+        byte[] data = new byte[w*h];
+        int offIn = 0;
+        int x=0,y=0;
+
+        try {
+            while((x + y*w) < w*h){
+                if(in.read(cmd) != 2)
+                    throw new IOException("Error reading compressed data.");
+
+                if(cmd[0] == ESCAPE){
+                    switch(cmd[1]){
+                    case EOB: // end of bitmap
+                        return data;
+                    case EOL: // end of line
+                        x = 0;
+                        y++;
+                        break;
+                    case DELTA: // delta
+                        if(in.read(cmd) != 2)
+                            throw new IOException("Error reading compressed data.");
+                        int dx = cmd[0] & (0xFF);
+                        int dy = cmd[1] & (0xFF);
+                        x += dx;
+                        y += dy;
+                        break;
+
+                    default:
+                        // decode a literal run
+                        int length = cmd[1] & (0xFF);
+                        int copylength = length;
+
+                        // absolute mode must be word-aligned
+                        length += (length & 1);
+
+                        byte[] run = new byte[length];
+                        if(in.read(run) != length)
+                            throw new IOException("Error reading compressed data.");
+
+                        System.arraycopy(run, 0, data, (x+w*(h-y-1)),
+                                         copylength);
+                        x += copylength;
+                        break;
+                    }
+                } else {
+                    // decode a byte run
+                    int length = cmd[0] & (0xFF);
+                    for(int i=0;i<length;i++)
+                        data[(h-y-1)*w + x++] = cmd[1];
+                }
+            }
+            return data;
+        } catch(ArrayIndexOutOfBoundsException e){
+            throw new BMPException("Invalid RLE data.");
+        }
+    }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB1.java b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB1.java
new file mode 100644
index 000000000..ffe671dc0
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB1.java
@@ -0,0 +1,128 @@
+/* EncodeRGB1.java --
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.PixelGrabber;
+import java.io.IOException;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageOutputStream;
+
+public class EncodeRGB1
+    extends BMPEncoder
+{
+  protected BMPInfoHeader infoHeader;
+  protected BMPFileHeader fileHeader;
+  protected long offset;
+
+  /**
+   * Constructs an instance of this class.
+   *
+   * @param fh - the file header to use.
+   * @param ih - the info header to use.
+   */
+  public EncodeRGB1(BMPFileHeader fh, BMPInfoHeader ih)
+  {
+    super();
+    fileHeader = fh;
+    infoHeader = ih;
+    offset = BMPFileHeader.SIZE + BMPInfoHeader.SIZE;
+  }
+
+  /**
+   * The image encoder.
+   *
+   * @param o - the image output stream
+   * @param streamMetadata - metadata associated with this stream, or
+   * null
+   * @param image - an IIOImage containing image data.
+   * @param param - image writing parameters, or null
+   * @exception IOException if a write error occurs
+   */
+  public void encode(ImageOutputStream o, IIOMetadata streamMetadata,
+                     IIOImage image, ImageWriteParam param) throws IOException
+  {
+    int size;
+    int value;
+    int j;
+    int rowCount;
+    int rowIndex;
+    int lastRowIndex;
+    int[] bitmap;
+    byte rgb[] = new byte[1];
+    size = (infoHeader.biWidth * infoHeader.biHeight) - 1;
+    rowCount = 1;
+    rowIndex = size - infoHeader.biWidth;
+    lastRowIndex = rowIndex;
+    try
+      {
+        bitmap = new int[infoHeader.biWidth * infoHeader.biHeight];
+        PixelGrabber pg = new PixelGrabber((BufferedImage) image.getRenderedImage(),
+                                           0, 0, infoHeader.biWidth,
+                                           infoHeader.biHeight, bitmap, 0,
+                                           infoHeader.biWidth);
+        pg.grabPixels();
+
+        for (j = 0; j < size; j++)
+          {
+            value = bitmap[rowIndex];
+
+            rgb[0] = (byte) (value & 0xFF);
+
+            o.write(rgb);
+            if (rowCount == infoHeader.biWidth)
+              {
+                rowCount = 1;
+                rowIndex = lastRowIndex - infoHeader.biWidth;
+                lastRowIndex = rowIndex;
+              }
+            else
+              rowCount++;
+            rowIndex++;
+          }
+      }
+    catch (Exception wb)
+      {
+        wb.printStackTrace();
+      }
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB16.java b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB16.java
new file mode 100644
index 000000000..a5450cc67
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB16.java
@@ -0,0 +1,129 @@
+/* EncodeRGB16.java --
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.PixelGrabber;
+import java.io.IOException;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageOutputStream;
+
+public class EncodeRGB16
+    extends BMPEncoder
+{
+  protected BMPInfoHeader infoHeader;
+  protected BMPFileHeader fileHeader;
+  protected long offset;
+
+  /**
+   * Constructs an instance of this class.
+   *
+   * @param fh - the file header to use.
+   * @param ih - the info header to use.
+   */
+  public EncodeRGB16(BMPFileHeader fh, BMPInfoHeader ih)
+  {
+    super();
+    fileHeader = fh;
+    infoHeader = ih;
+    offset = BMPFileHeader.SIZE + BMPInfoHeader.SIZE;
+  }
+
+  /**
+   * The image encoder.
+   *
+   * @param o - the image output stream
+   * @param streamMetadata - metadata associated with this stream, or
+   * null
+   * @param image - an IIOImage containing image data.
+   * @param param - image writing parameters, or null
+   * @exception IOException if a write error occurs
+   */
+  public void encode(ImageOutputStream o, IIOMetadata streamMetadata,
+                     IIOImage image, ImageWriteParam param) throws IOException
+  {
+    int size;
+    int value;
+    int j;
+    int rowCount;
+    int rowIndex;
+    int lastRowIndex;
+    int[] bitmap;
+    byte rgb[] = new byte[2];
+    size = (infoHeader.biWidth * infoHeader.biHeight) - 1;
+    rowCount = 1;
+    rowIndex = size - infoHeader.biWidth;
+    lastRowIndex = rowIndex;
+    try
+      {
+        bitmap = new int[infoHeader.biWidth * infoHeader.biHeight];
+        PixelGrabber pg = new PixelGrabber((BufferedImage) image.getRenderedImage(),
+                                           0, 0, infoHeader.biWidth,
+                                           infoHeader.biHeight, bitmap, 0,
+                                           infoHeader.biWidth);
+        pg.grabPixels();
+
+        for (j = 0; j < size; j++)
+          {
+            value = bitmap[rowIndex];
+
+            rgb[0] = (byte) (value & 0xFF);
+            rgb[1] = (byte) (value >> 8 & 0xFF);
+
+            o.write(rgb);
+            if (rowCount == infoHeader.biWidth)
+              {
+                rowCount = 1;
+                rowIndex = lastRowIndex - infoHeader.biWidth;
+                lastRowIndex = rowIndex;
+              }
+            else
+              rowCount++;
+            rowIndex++;
+          }
+      }
+    catch (Exception wb)
+      {
+        wb.printStackTrace();
+      }
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB24.java b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB24.java
new file mode 100644
index 000000000..7fbc83e2e
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB24.java
@@ -0,0 +1,129 @@
+/* EncodeRGB24.java --
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.PixelGrabber;
+import java.io.IOException;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageOutputStream;
+
+public class EncodeRGB24
+    extends BMPEncoder
+{
+  protected BMPInfoHeader infoHeader;
+  protected BMPFileHeader fileHeader;
+  protected long offset;
+
+  /**
+   * Constructs an instance of this class.
+   *
+   * @param fh - the file header to use.
+   * @param ih - the info header to use.
+   */
+  public EncodeRGB24(BMPFileHeader fh, BMPInfoHeader ih)
+  {
+    super();
+    fileHeader = fh;
+    infoHeader = ih;
+    offset = BMPFileHeader.SIZE + BMPInfoHeader.SIZE;
+  }
+
+  /**
+   * The image encoder.
+   *
+   * @param o - the image output stream
+   * @param streamMetadata - metadata associated with this stream, or
+   * null
+   * @param image - an IIOImage containing image data.
+   * @param param - image writing parameters, or null
+   * @exception IOException if a write error occurs
+   */
+  public void encode(ImageOutputStream o, IIOMetadata streamMetadata,
+                     IIOImage image, ImageWriteParam param) throws IOException
+  {
+    int size;
+    int value;
+    int j;
+    int rowCount;
+    int rowIndex;
+    int lastRowIndex;
+    int[] bitmap;
+    byte rgb[] = new byte[3];
+    size = (infoHeader.biWidth * infoHeader.biHeight) - 1;
+    rowCount = 1;
+    rowIndex = size - infoHeader.biWidth;
+    lastRowIndex = rowIndex;
+    try
+      {
+        bitmap = new int[infoHeader.biWidth * infoHeader.biHeight];
+        PixelGrabber pg = new PixelGrabber((BufferedImage) image.getRenderedImage(),
+                                           0, 0, infoHeader.biWidth,
+                                           infoHeader.biHeight, bitmap, 0,
+                                           infoHeader.biWidth);
+        pg.grabPixels();
+
+        for (j = 0; j < size; j++)
+          {
+            value = bitmap[rowIndex];
+
+            rgb[0] = (byte) (value & 0xFF);
+            rgb[1] = (byte) ((value >> 8) & 0xFF);
+            rgb[2] = (byte) ((value >> 16) & 0xFF);
+            o.write(rgb);
+            if (rowCount == infoHeader.biWidth)
+              {
+                rowCount = 1;
+                rowIndex = lastRowIndex - infoHeader.biWidth;
+                lastRowIndex = rowIndex;
+              }
+            else
+              rowCount++;
+            rowIndex++;
+          }
+      }
+    catch (Exception wb)
+      {
+        wb.printStackTrace();
+      }
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB32.java b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB32.java
new file mode 100644
index 000000000..7deca3049
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB32.java
@@ -0,0 +1,129 @@
+/* EncodeRGB32.java --
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.PixelGrabber;
+import java.io.IOException;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageOutputStream;
+
+public class EncodeRGB32
+    extends BMPEncoder
+{
+  protected BMPInfoHeader infoHeader;
+  protected BMPFileHeader fileHeader;
+  protected long offset;
+
+  /**
+   * Constructs an instance of this class.
+   *
+   * @param fh - the file header to use.
+   * @param ih - the info header to use.
+   */
+  public EncodeRGB32(BMPFileHeader fh, BMPInfoHeader ih)
+  {
+    super();
+    fileHeader = fh;
+    infoHeader = ih;
+    offset = BMPFileHeader.SIZE + BMPInfoHeader.SIZE;
+  }
+
+  /**
+   * The image encoder.
+   *
+   * @param o - the image output stream
+   * @param streamMetadata - metadata associated with this stream, or null
+   * @param image - an IIOImage containing image data.
+   * @param param - image writing parameters, or null
+   * @exception IOException if a write error occurs
+   */
+  public void encode(ImageOutputStream o, IIOMetadata streamMetadata,
+                     IIOImage image, ImageWriteParam param) throws IOException
+  {
+    int size;
+    int value;
+    int j;
+    int rowCount;
+    int rowIndex;
+    int lastRowIndex;
+    int[] bitmap;
+    byte rgb[] = new byte[4];
+    size = (infoHeader.biWidth * infoHeader.biHeight) - 1;
+    rowCount = 1;
+    rowIndex = size - infoHeader.biWidth;
+    lastRowIndex = rowIndex;
+    try
+      {
+        bitmap = new int[infoHeader.biWidth * infoHeader.biHeight];
+        PixelGrabber pg = new PixelGrabber((BufferedImage) image.getRenderedImage(),
+                                           0, 0, infoHeader.biWidth,
+                                           infoHeader.biHeight, bitmap, 0,
+                                           infoHeader.biWidth);
+        pg.grabPixels();
+
+        for (j = 0; j < size; j++)
+          {
+            value = bitmap[rowIndex];
+
+            rgb[0] = (byte) (value & 0xFF);
+            rgb[1] = (byte) ((value >> 8) & 0xFF);
+            rgb[2] = (byte) ((value >> 16) & 0xFF);
+            rgb[3] = (byte) ((value >> 24) & 0xFF);
+            o.write(rgb);
+            if (rowCount == infoHeader.biWidth)
+              {
+                rowCount = 1;
+                rowIndex = lastRowIndex - infoHeader.biWidth;
+                lastRowIndex = rowIndex;
+              }
+            else
+              rowCount++;
+            rowIndex++;
+          }
+      }
+    catch (Exception wb)
+      {
+        wb.printStackTrace();
+      }
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB4.java b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB4.java
new file mode 100644
index 000000000..b62283a7d
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB4.java
@@ -0,0 +1,128 @@
+/* EncodeRGB4.java --
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.PixelGrabber;
+import java.io.IOException;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageOutputStream;
+
+public class EncodeRGB4
+    extends BMPEncoder
+{
+  protected BMPInfoHeader infoHeader;
+  protected BMPFileHeader fileHeader;
+  protected long offset;
+
+  /**
+   * Constructs an instance of this class.
+   *
+   * @param fh - the file header to use.
+   * @param ih - the info header to use.
+   */
+  public EncodeRGB4(BMPFileHeader fh, BMPInfoHeader ih)
+  {
+    super();
+    fileHeader = fh;
+    infoHeader = ih;
+    offset = BMPFileHeader.SIZE + BMPInfoHeader.SIZE;
+  }
+
+  /**
+   * The image encoder.
+   *
+   * @param o - the image output stream
+   * @param streamMetadata - metadata associated with this stream, or
+   * null
+   * @param image - an IIOImage containing image data.
+   * @param param - image writing parameters, or null
+   * @exception IOException if a write error occurs
+   */
+  public void encode(ImageOutputStream o, IIOMetadata streamMetadata,
+                     IIOImage image, ImageWriteParam param) throws IOException
+  {
+    int size;
+    int value;
+    int j;
+    int rowCount;
+    int rowIndex;
+    int lastRowIndex;
+    int[] bitmap;
+    byte rgb[] = new byte[1];
+    size = (infoHeader.biWidth * infoHeader.biHeight) - 1;
+    rowCount = 1;
+    rowIndex = size - infoHeader.biWidth;
+    lastRowIndex = rowIndex;
+    try
+      {
+        bitmap = new int[infoHeader.biWidth * infoHeader.biHeight];
+        PixelGrabber pg = new PixelGrabber((BufferedImage) image.getRenderedImage(),
+                                           0, 0, infoHeader.biWidth,
+                                           infoHeader.biHeight, bitmap, 0,
+                                           infoHeader.biWidth);
+        pg.grabPixels();
+
+        for (j = 0; j < size; j++)
+          {
+            value = bitmap[rowIndex];
+
+            rgb[0] = (byte) (value & 0xFF);
+
+            o.write(rgb);
+            if (rowCount == infoHeader.biWidth)
+              {
+                rowCount = 1;
+                rowIndex = lastRowIndex - infoHeader.biWidth;
+                lastRowIndex = rowIndex;
+              }
+            else
+              rowCount++;
+            rowIndex++;
+          }
+      }
+    catch (Exception wb)
+      {
+        wb.printStackTrace();
+      }
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB8.java b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB8.java
new file mode 100644
index 000000000..ef0594a5f
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB8.java
@@ -0,0 +1,127 @@
+/* EncodeRGB8.java --
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.PixelGrabber;
+import java.io.IOException;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageOutputStream;
+
+public class EncodeRGB8
+    extends BMPEncoder
+{
+  protected BMPInfoHeader infoHeader;
+  protected BMPFileHeader fileHeader;
+  protected long offset;
+
+  /**
+   * Constructs an instance of this class.
+   *
+   * @param fh - the file header to use.
+   * @param ih - the info header to use.
+   */
+  public EncodeRGB8(BMPFileHeader fh, BMPInfoHeader ih)
+  {
+    super();
+    fileHeader = fh;
+    infoHeader = ih;
+    offset = BMPFileHeader.SIZE + BMPInfoHeader.SIZE;
+  }
+
+  /**
+   * The image encoder.
+   *
+   * @param o - the image output stream
+   * @param streamMetadata - metadata associated with this stream, or
+   * null
+   * @param image - an IIOImage containing image data.
+   * @param param - image writing parameters, or null
+   * @exception IOException if a write error occurs
+   */
+  public void encode(ImageOutputStream o, IIOMetadata streamMetadata,
+                     IIOImage image, ImageWriteParam param) throws IOException
+  {
+    int size;
+    int value;
+    int j;
+    int rowCount;
+    int rowIndex;
+    int lastRowIndex;
+    int[] bitmap;
+    byte rgb[] = new byte[1];
+    size = (infoHeader.biWidth * infoHeader.biHeight) - 1;
+    rowCount = 1;
+    rowIndex = size - infoHeader.biWidth;
+    lastRowIndex = rowIndex;
+    try
+      {
+        bitmap = new int[infoHeader.biWidth * infoHeader.biHeight];
+        PixelGrabber pg = new PixelGrabber((BufferedImage) image.getRenderedImage(),
+                                           0, 0, infoHeader.biWidth,
+                                           infoHeader.biHeight, bitmap, 0,
+                                           infoHeader.biWidth);
+        pg.grabPixels();
+
+        for (j = 0; j < size; j++)
+          {
+            value = bitmap[rowIndex];
+
+            rgb[0] = (byte) (value & 0xFF);
+            o.write(rgb);
+            if (rowCount == infoHeader.biWidth)
+              {
+                rowCount = 1;
+                rowIndex = lastRowIndex - infoHeader.biWidth;
+                lastRowIndex = rowIndex;
+              }
+            else
+              rowCount++;
+            rowIndex++;
+          }
+      }
+    catch (Exception wb)
+      {
+        wb.printStackTrace();
+      }
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/EncodeRLE4.java b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRLE4.java
new file mode 100644
index 000000000..c54c3ca87
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRLE4.java
@@ -0,0 +1,269 @@
+/* EncodeRLE4.java --
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.PixelGrabber;
+import java.io.IOException;
+import java.nio.BufferUnderflowException;
+import java.nio.ByteBuffer;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageOutputStream;
+
+public class EncodeRLE4
+    extends BMPEncoder
+{
+  protected BMPInfoHeader infoHeader;
+  protected BMPFileHeader fileHeader;
+  protected long offset;
+
+  /**
+   * RLE control codes
+   */
+  private static final byte ESCAPE = (byte)0;
+  private static final byte EOL = (byte)0; // end of line
+  private static final byte EOB = (byte)1; // end of bitmap
+  private static final byte DELTA = (byte)2; // delta
+
+  /**
+   * Constructs an instance of this class.
+   *
+   * @param fh - the file header to use.
+   * @param ih - the info header to use.
+   */
+  public EncodeRLE4(BMPFileHeader fh, BMPInfoHeader ih)
+  {
+    super();
+    fileHeader = fh;
+    infoHeader = ih;
+    offset = BMPFileHeader.SIZE + BMPInfoHeader.SIZE;
+  }
+
+  /**
+   * The image encoder.
+   *
+   * @param o - the image output stream
+   * @param streamMetadata - metadata associated with this stream, or
+   * null
+   * @param image - an IIOImage containing image data.
+   * @param param - image writing parameters, or null
+   * @exception IOException if a write error occurs
+   */
+  public void encode(ImageOutputStream o, IIOMetadata streamMetadata,
+                     IIOImage image, ImageWriteParam param) throws IOException
+  {
+    int size;
+    int value;
+    int j;
+    int rowCount;
+    int rowIndex;
+    int lastRowIndex;
+    int[] bitmap;
+    size = (infoHeader.biWidth * infoHeader.biHeight) - 1;
+    rowCount = 1;
+    rowIndex = size - infoHeader.biWidth;
+    lastRowIndex = rowIndex;
+    ByteBuffer buf = ByteBuffer.allocate(size);
+    try
+      {
+        bitmap = new int[infoHeader.biWidth * infoHeader.biHeight];
+        PixelGrabber pg = new PixelGrabber((BufferedImage) image.getRenderedImage(),
+                                           0, 0, infoHeader.biWidth,
+                                           infoHeader.biHeight, bitmap, 0,
+                                           infoHeader.biWidth);
+        pg.grabPixels();
+
+        for (j = 0; j < size; j++)
+          {
+            value = bitmap[rowIndex];
+            buf.put((byte) (value & 0xFF));
+
+            if (rowCount == infoHeader.biWidth)
+              {
+                rowCount = 1;
+                rowIndex = lastRowIndex - infoHeader.biWidth;
+                lastRowIndex = rowIndex;
+              }
+            else
+              rowCount++;
+            rowIndex++;
+          }
+
+        buf.flip();
+        o.write(uncompress(infoHeader.biWidth, infoHeader.biHeight, buf));
+      }
+    catch (Exception wb)
+      {
+        wb.printStackTrace();
+      }
+  }
+
+  /**
+   * Uncompresses the image stored in the buffer.
+   *
+   * @param w - the width of the image
+   * @param h - the height of the image
+   * @param buf - the ByteBuffer containing the pixel values.
+   * @return byte array containing the uncompressed image
+   * @throws IOException if an error is encountered while reading
+   * buffer.
+   */
+  private byte[] uncompress(int w, int h, ByteBuffer buf)
+      throws IOException
+  {
+    byte[] cmd = new byte[2];
+    byte[] data = new byte[w * h >> 1];
+    int offIn = 0;
+    int x = 0, y = 0;
+
+    w += (w & 1);
+    w = w >> 1;
+
+    try
+      {
+        while (((x >> 1) + y * w) < w * h)
+          {
+            try
+            {
+              buf.get(cmd);
+            }
+            catch (BufferUnderflowException e)
+            {
+              throw new IOException("Error reading compressed data.");
+            }
+
+            if (cmd[0] == ESCAPE)
+              {
+                switch (cmd[1])
+                  {
+                  case EOB:
+                    return data;
+                  case EOL:
+                    x = 0;
+                    y++;
+                    break;
+                  case DELTA:
+                    try
+                    {
+                      buf.get(cmd);
+                    }
+                    catch (BufferUnderflowException e)
+                    {
+                      throw new IOException("Error reading compressed data.");
+                    }
+
+                    int dx = cmd[0] & (0xFF);
+                    int dy = cmd[1] & (0xFF);
+                    x += dx;
+                    y += dy;
+                    break;
+
+                  default:
+                    int length = cmd[1] & (0xFF);
+
+                    int bytesize = length;
+                    bytesize += (bytesize & 1);
+                    bytesize >>= 1;
+                    bytesize += (bytesize & 1);
+
+                    byte[] run = new byte[bytesize];
+                    try
+                    {
+                      buf.get(run);
+                    }
+                    catch (BufferUnderflowException e)
+                    {
+                      throw new IOException("Error reading compressed data.");
+                    }
+
+                    if ((x & 1) == 0)
+                      {
+                        length += (length & 1);
+                        length >>= 1;
+                        System.arraycopy(run, 0, data,
+                                         ((x >> 1) + w * (h - y - 1)), length);
+                      }
+                    else
+                      {
+                        for (int i = 0; i < length; i++)
+                          {
+                            if ((i & 1) == 0)
+                              data[((x + i) >> 1) + w * (h - y - 1)] |= ((run[i >> 1] & 0xF0) >> 4);
+                            else
+                              data[((x + i) >> 1) + w * (h - y - 1)] |= ((run[i >> 1] & 0x0F) << 4);
+                          }
+                      }
+                    x += cmd[1] & (0xFF);
+                    break;
+                  }
+              }
+            else
+              {
+                int length = cmd[0] & (0xFF);
+                if ((x & 1) == 0)
+                  {
+                    length += (length & 1);
+                    length >>= 1;
+                    for (int i = 0; i < length; i++)
+                      data[(h - y - 1) * w + i + (x >> 1)] = cmd[1];
+                  }
+                else
+                  {
+                    for (int i = 0; i < length; i++)
+                      {
+                        if ((i & 1) == 0)
+                          data[((x + i) >> 1) + w * (h - y - 1)] |= ((cmd[1] & 0xF0) >> 4);
+                        else
+                          data[((x + i) >> 1) + w * (h - y - 1)] |= ((cmd[1] & 0x0F) << 4);
+                      }
+                  }
+                x += cmd[0] & (0xFF);
+              }
+          }
+        return data;
+      }
+    catch (ArrayIndexOutOfBoundsException e)
+      {
+        throw new BMPException("Invalid RLE data.");
+      }
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/EncodeRLE8.java b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRLE8.java
new file mode 100644
index 000000000..62277ef90
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRLE8.java
@@ -0,0 +1,234 @@
+/* EncodeRGB32.java --
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.PixelGrabber;
+import java.io.IOException;
+import java.nio.BufferUnderflowException;
+import java.nio.ByteBuffer;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageOutputStream;
+
+public class EncodeRLE8
+    extends BMPEncoder
+{
+  protected BMPInfoHeader infoHeader;
+  protected BMPFileHeader fileHeader;
+  protected long offset;
+
+  /**
+   * RLE control codes
+   */
+  private static final byte ESCAPE = (byte)0;
+  private static final byte EOL = (byte)0; // end of line
+  private static final byte EOB = (byte)1; // end of bitmap
+  private static final byte DELTA = (byte)2; // delta
+
+  /**
+   * Constructs an instance of this class.
+   *
+   * @param fh - the file header to use.
+   * @param ih - the info header to use.
+   */
+  public EncodeRLE8(BMPFileHeader fh, BMPInfoHeader ih)
+  {
+    super();
+    fileHeader = fh;
+    infoHeader = ih;
+    offset = BMPFileHeader.SIZE + BMPInfoHeader.SIZE;
+  }
+
+  /**
+   * The image encoder.
+   *
+   * @param o - the image output stream
+   * @param streamMetadata - metadata associated with this stream, or
+   * null
+   * @param image - an IIOImage containing image data.
+   * @param param - image writing parameters, or null
+   * @exception IOException if a write error occurs
+   */
+  public void encode(ImageOutputStream o, IIOMetadata streamMetadata,
+                     IIOImage image, ImageWriteParam param) throws IOException
+  {
+    int size;
+    int value;
+    int j;
+    int rowCount;
+    int rowIndex;
+    int lastRowIndex;
+    int[] bitmap;
+    size = (infoHeader.biWidth * infoHeader.biHeight) - 1;
+    rowCount = 1;
+    rowIndex = size - infoHeader.biWidth;
+    lastRowIndex = rowIndex;
+    ByteBuffer buf = ByteBuffer.allocate(size);
+    try
+      {
+        bitmap = new int[infoHeader.biWidth * infoHeader.biHeight];
+        PixelGrabber pg = new PixelGrabber((BufferedImage) image.getRenderedImage(),
+                                           0, 0, infoHeader.biWidth,
+                                           infoHeader.biHeight, bitmap, 0,
+                                           infoHeader.biWidth);
+        pg.grabPixels();
+
+        for (j = 0; j < size; j++)
+          {
+            value = bitmap[rowIndex];
+            buf.put((byte) (value & 0xFF));
+
+            if (rowCount == infoHeader.biWidth)
+              {
+                rowCount = 1;
+                rowIndex = lastRowIndex - infoHeader.biWidth;
+                lastRowIndex = rowIndex;
+              }
+            else
+              rowCount++;
+            rowIndex++;
+          }
+
+        buf.flip();
+        o.write(uncompress(infoHeader.biWidth, infoHeader.biHeight, buf));
+      }
+    catch (Exception wb)
+      {
+        wb.printStackTrace();
+      }
+    }
+
+
+  /**
+   * Uncompresses the image stored in the buffer.
+   *
+   * @param w - the width of the image
+   * @param h - the height of the image
+   * @param buf - the ByteBuffer containing the pixel values.
+   * @return byte array containing the uncompressed image
+   * @throws IOException if an error is encountered while reading
+   * buffer.
+   */
+  private byte[] uncompress(int w, int h, ByteBuffer buf) throws IOException
+  {
+    byte[] cmd = new byte[2];
+    byte[] data = new byte[w * h];
+    int offIn = 0;
+    int x = 0, y = 0;
+
+    try
+      {
+        while ((x + y * w) < w * h)
+          {
+            try
+            {
+              buf.get(cmd);
+            }
+            catch (BufferUnderflowException e)
+            {
+              throw new IOException("Error reading compressed data.");
+            }
+
+            if (cmd[0] == ESCAPE)
+              {
+                switch (cmd[1])
+                  {
+                  case EOB:
+                    return data;
+                  case EOL:
+                    x = 0;
+                    y++;
+                    break;
+                  case DELTA:
+                    try
+                    {
+                      buf.get(cmd);
+                    }
+                    catch (BufferUnderflowException e)
+                    {
+                      throw new IOException("Error reading compressed data.");
+                    }
+
+                    int dx = cmd[0] & (0xFF);
+                    int dy = cmd[1] & (0xFF);
+                    x += dx;
+                    y += dy;
+                    break;
+
+                  default:
+                    int length = cmd[1] & (0xFF);
+                    int copylength = length;
+
+                    length += (length & 1);
+
+                    byte[] run = new byte[length];
+
+                    try
+                    {
+                      buf.get(run);
+                    }
+                    catch (BufferUnderflowException e)
+                    {
+                      throw new IOException("Error reading compressed data.");
+                    }
+
+                    System.arraycopy(run, 0, data, (x + w * (h - y - 1)),
+                                     copylength);
+                    x += copylength;
+                    break;
+                  }
+              }
+            else
+              {
+                int length = cmd[0] & (0xFF);
+                for (int i = 0; i < length; i++)
+                  data[(h - y - 1) * w + x++] = cmd[1];
+              }
+          }
+        return data;
+      }
+    catch (ArrayIndexOutOfBoundsException e)
+      {
+        throw new BMPException("Invalid RLE data.");
+      }
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/gif/GIFFile.java b/libjava/classpath/gnu/javax/imageio/gif/GIFFile.java
new file mode 100644
index 000000000..941397a0e
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/gif/GIFFile.java
@@ -0,0 +1,709 @@
+/* GIFFile.java -- GIF decoder
+   Copyright (C) 2006  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.gif;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Vector;
+
+/**
+ * GIFFile - reads a GIF file.
+ *
+ * This class only does the bare minimum work, and returns the data in raw
+ * formats (described below). The class is J2ME compatible, and hopefully
+ * we can keep it that way without any significant overhead.
+ *
+ * @author Sven de Marothy.
+ */
+public class GIFFile
+{
+  // "NETSCAPE2.0" - identifier
+  private final static byte[] nsBlock = new byte[]
+  {0x4e, 0x45, 0x54, 0x53, 0x43, 0x41, 0x50, 0x45, 0x32, 0x2e, 0x30 };
+
+  /**
+   * Block identifiers
+   */
+  private final static int EXTENSION = 0x21;
+  private final static int LOCAL = 0x2C;
+  private final static int TERMINATOR = 0x3B;
+
+  /**
+   * Extension block types
+   */
+  private final static int EXTENSION_COMMENT = 254;
+  private final static int EXTENSION_GCONTROL = 249;
+  private final static int EXTENSION_APPLICATION = 255;
+
+  /**
+   * Undraw commands for animation.
+   */
+  private final static int UNDRAW_OVERWRITE = 1;
+  private final static int UNDRAW_RESTORE_BACKGROUND = 2;
+  private final static int UNDRAW_RESTORE_PREVIOUS = 3;
+
+  /**
+   * Image position and dimensions (images may be partial)
+   */
+  private int x, y, width, height;
+
+  /**
+   * Global dimensions
+   */
+  private int globalWidth, globalHeight;
+
+  /**
+   * Background color index.
+   */
+  private byte bgIndex;
+
+  /**
+   * Number of colors
+   */
+  private int nColors;
+
+  /**
+   * Global palette, if any
+   */
+  private byte[] globalPalette;
+
+  /**
+   * Any
+   */
+  private boolean hasGlobalColorMap;
+
+  /**
+   * Local palette, if any (used if available)
+   */
+  private byte[] localPalette;
+
+  /**
+   * Interlaced GIF or not?
+   */
+  private boolean interlaced;
+
+  /**
+   * Has transparency?
+   */
+  private boolean hasTransparency;
+
+  /**
+   * Undraw mode (animations)
+   */
+  private int undraw;
+
+  /**
+   * Transparent index;
+   */
+  private int transparentIndex;
+
+  /**
+   * The uncompressed raster
+   */
+  private byte[] raster;
+
+  /**
+   * The compressed data (freed after uncompressing)
+   */
+  private byte[] compressedData;
+
+  /**
+   * Frame delay in 100ths of a second ( centiseconds, metrically )
+   */
+  private int duration;
+
+  /**
+   * Indices used during decompression
+   */
+  private int dataBlockIndex;
+
+  /**
+   * The file comment , if a comment block exists.
+   */
+  private String comment;
+
+  /**
+   * Fields used by getBits()
+   */
+  private int remainingBits = 0;
+  private int currentBits = 0;
+
+  /**
+   * Netscape animation extension
+   */
+  private boolean isLooped = false;
+
+  /** Number of loops, 0 = infinite */
+  private int loops;
+
+  /**
+   * Additional frames if it's an animated GIF.
+   */
+  private Vector animationFrames;
+
+  /**
+   * Loads the file from an input stream, which is not closed.
+   * @throws IOException if an I/O error occured.
+   * @throws GIFException if some file parsing error occured
+   */
+  public GIFFile(InputStream in) throws IOException, GIFException
+  {
+    // Validate the signature
+    if( !readSignature( in ) )
+      throw new GIFException("Invalid GIF signature.");
+
+    {
+      byte[] data = new byte[7];
+      if (in.read(data) != 7)
+        throw new IOException("Couldn't read global descriptor.");
+
+      globalWidth = ((data[1] & 0xFF) << 8) | (data[0] & 0xFF);
+      globalHeight = ((data[3] & 0xFF) << 8) | (data[2] & 0xFF);
+      byte flags = data[4];
+      bgIndex = data[5];
+      nColors = (1 << (( flags & 0x07) + 1));
+      hasGlobalColorMap = ((flags & 0x80) != 0);
+    }
+
+    if( hasGlobalColorMap )
+      {
+        globalPalette = new byte[ nColors * 3 ];
+        if( in.read( globalPalette ) != nColors * 3 )
+          throw new IOException("Couldn't read color map.");
+      }
+
+    int c = in.read();
+    while( c == EXTENSION )
+      {
+        readExtension( in );
+        c = in.read();
+      }
+
+    if( c != LOCAL )
+      throw new GIFException("Extension blocks not followed by a local descriptor ("+c+")");
+
+    loadImage( in );
+    c = in.read();
+
+    if( c == TERMINATOR ) // Not an animated GIF.
+      return;
+
+    // Load animation frames. Just quit if an error occurs instead
+    // of throwing an exception.
+    animationFrames = new Vector();
+    try
+      {
+        while( c != TERMINATOR )
+          {
+            animationFrames.add( new GIFFile( this, in, c ) );
+            c = in.read();
+          }
+      }
+    catch(IOException ioe)
+      {
+      }
+    catch(GIFException gife)
+      {
+      }
+  }
+
+  /**
+   * Constructor for additional animation frames.
+   */
+  private GIFFile(GIFFile parent, InputStream in, int c)
+    throws IOException, GIFException
+  {
+    // Copy global properties.
+    globalWidth = parent.globalWidth;
+    globalHeight = parent.globalHeight;
+    nColors = parent.nColors;
+    globalPalette = parent.globalPalette;
+    hasGlobalColorMap = parent.hasGlobalColorMap;
+    interlaced = parent.interlaced;
+    comment = parent.comment;
+    isLooped = parent.isLooped;
+    loops = parent.loops;
+
+    while( c == EXTENSION )
+    {
+      readExtension( in );
+      c = in.read();
+    }
+
+    if( c != LOCAL )
+      throw new GIFException("Extension blocks not followed by a local descriptor ("+c+")");
+
+    loadImage( in );
+  }
+
+  /**
+   * Reads a GIF file signature from an inputstream and checks it.
+   *
+   * @param in - the stream (reads 6 bytes, does not close or reset).
+   * @return true if the signature is a valid GIF signature.
+   * @throws IOException if the signature could not be read.
+   */
+  public static boolean readSignature( InputStream in ) throws IOException
+  {
+    byte[] data = new byte[6];
+    if (in.read(data) != 6)
+      throw new IOException("Couldn't read signature.");
+
+    if( data[0] != 0x47 || data[1] != 0x49 || data[2] != 0x46 ||
+        data[3] != 0x38 ) // GIF8
+      return false;
+
+    if( (data[4] != 0x39 && data[4] != 0x37) || // 7 | 9
+        (data[5] != 0x61 && data[5] != 0x62) ) // 'a' or 'b'
+      return false;
+    return true;
+  }
+
+
+  /**
+   * Loads the image local descriptor and then loads/decodes the image raster,
+   * and then performs any necessary postprocessing like deinterlacing.
+   */
+  private void loadImage(InputStream in)
+    throws IOException, GIFException
+  {
+    readLocal( in );
+
+    try
+      {
+        decodeRaster( in );
+      }
+    catch(ArrayIndexOutOfBoundsException aioobe)
+      {
+        throw new GIFException("Error decompressing image.");
+      }
+
+    if( interlaced )  // Clean up
+      deinterlace();
+    packPixels();
+  }
+
+  /**
+   * Pack the pixels if it's a 2, 4 or 16 color image.
+   * While GIF may support any number of colors from 2-256, we won't bother
+   * trying to pack pixels not resulting in even byte boundaries.
+   * (AWT doesn't support that anyway, and most apps do the same.)
+   */
+  private void packPixels()
+  {
+    if( nColors != 2 && nColors != 4 && nColors != 16 )
+      return;
+
+    int nbits = 1;
+    int ppbyte = 8;
+    if( nColors == 4 )
+      {
+        nbits = 2;
+        ppbyte = 4;
+      }
+    else if( nColors == 16 )
+      {
+        nbits = 4;
+        ppbyte = 2;
+      }
+
+    int rem = (width & (ppbyte - 1));
+    int w = ( rem == 0 ) ? (width / ppbyte) :
+      ((width + ppbyte - rem) / ppbyte);
+    byte[] nr = new byte[ w * height ];
+    for(int j = 0; j < height; j++)
+      {
+        for(int i = 0; i < width - ppbyte; i += ppbyte)
+          for(int k = 0; k < ppbyte; k++)
+            nr[ j * w + (i / ppbyte) ] |= (byte)((raster[ width * j + i + k ]
+                                                  << (8 - nbits * (1 + k))));
+        for(int i = 0; i < rem; i++)
+          nr[ j * w + w - 1 ] |= (byte)((raster[ width * j + width - rem + i ]
+                                         << (nbits * (rem - i))));
+      }
+    raster = nr;
+  }
+
+  /**
+   * Returns the (global) width
+   */
+  public int getWidth()
+  {
+    return width;
+  }
+
+  /**
+   * Returns the image height
+   */
+  public int getHeight()
+  {
+    return height;
+  }
+
+  /**
+   * Returns the # of colors.
+   */
+  public int getNColors()
+  {
+    return nColors;
+  }
+
+  /**
+   * Returns whether the GIF has transparency.
+   */
+  public boolean hasTransparency()
+  {
+    return hasTransparency;
+  }
+
+  /**
+   * Returns the index of the transparent color.
+   */
+  public int getTransparentIndex()
+  {
+    return transparentIndex;
+  }
+
+  /**
+   * Retuns the GIF file comment, or null if none exists.
+   */
+  public String getComment()
+  {
+    return comment;
+  }
+
+  /**
+   * Get duration of the frame for animations.
+   */
+  public int getDuration()
+  {
+    return duration;
+  }
+
+  /**
+   * Deinterlaces the image.
+   */
+  private void deinterlace()
+  {
+    byte[] nr = new byte[ width * height ];
+    int n = 0;
+    for(int i = 0; i < ((height + 7) >> 3); i++)
+      {
+        System.arraycopy( raster, n, nr, width * i * 8, width );
+        n += width;
+      }
+    for(int i = 0; i < ((height + 3) >> 3); i++)
+      {
+        System.arraycopy( raster, n, nr, width * ( 8 * i + 4 ), width );
+        n += width;
+      }
+    for(int i = 0; i < (height >> 2); i++)
+      {
+        System.arraycopy( raster, n, nr, width * (4 * i + 2), width );
+        n += width;
+      }
+    for(int i = 0; i < (height >> 1); i++)
+      {
+        System.arraycopy( raster, n, nr, width * (2 * i + 1), width );
+        n += width;
+      }
+    raster = nr;
+  }
+
+  /**
+   * Reads the local descriptor
+   */
+  private void readLocal(InputStream in) throws IOException
+  {
+    byte[] data = new byte[9];
+    if (in.read(data) != 9)
+      throw new IOException("Couldn't read local descriptor.");
+    x = ((data[1] & 0xFF) << 8) | (data[0] & 0xFF);
+    y = ((data[3] & 0xFF) << 8) | (data[2] & 0xFF);
+    width = ((data[5] & 0xFF) << 8) | (data[4] & 0xFF);
+    height = ((data[7] & 0xFF) << 8) | (data[6] & 0xFF);
+    byte flags = data[8];
+    interlaced = (( flags & 0x40 ) != 0);
+    if( (flags & 0x80) != 0 )
+      { // has a local color map
+        int nLocalColors = (1 << (( flags & 0x07) + 1));
+        if( !hasGlobalColorMap )
+          nColors = nLocalColors;
+        localPalette = new byte[ nLocalColors * 3 ];
+        if( in.read( localPalette ) != nLocalColors * 3 )
+          throw new IOException("Couldn't read color map.");
+      }
+  }
+
+  /**
+   * Returns the image's palette in raw format
+   * (r0,g0,b0,r1,g1,b2..r(Ncolors-1),g(Ncolors-1),b(Ncolors-1))
+   */
+  public byte[] getRawPalette()
+  {
+    return hasGlobalColorMap ? globalPalette : localPalette;
+  }
+
+  /**
+   * Returns the image file for animated gifs.
+   */
+  public GIFFile getImage( int index )
+  {
+    if( index == 0 )
+      return this;
+    if( animationFrames == null )
+      throw new ArrayIndexOutOfBoundsException("Only one image in file");
+    return (GIFFile)animationFrames.elementAt( index - 1 );
+  }
+
+  /**
+   * Return the image's raw image data.
+   * If the color depth is 1,2 or 4 bits per pixel the pixels are packed
+   * and the scanlines padded up to the nearest byte if needed.
+   */
+  public byte[] getRawImage()
+  {
+    return raster;
+  }
+
+  /**
+   * Return the number of images in the GIF file
+   */
+  public int nImages()
+  {
+    if( animationFrames != null )
+      return 1 + animationFrames.size();
+    return 1;
+  }
+
+  /**
+   * Handles extension blocks.
+   */
+  private void readExtension(InputStream in) throws IOException, GIFException
+  {
+    int functionCode = in.read();
+    byte[] data = readData(in);
+    switch( functionCode )
+      {
+      case EXTENSION_COMMENT: // comment block
+        comment = new String(data, "8859_1");
+        break;
+
+      case EXTENSION_GCONTROL: // Graphics control extension
+        undraw = (data[0] & 0x1C) >> 2;
+        // allegedly there can be bad values of this.
+        if( undraw < 1 && undraw > 3 ) undraw = 1;
+        hasTransparency = ((data[0] & 0x01) == 1);
+        transparentIndex = (data[3] & 0xFF);
+        duration = ((data[2] & 0xFF) << 8) | (data[1] & 0xFF);
+        break;
+
+        // Application extension. We only parse the Netscape animation
+        // extension here. Which is the only one most use anyway.
+      case EXTENSION_APPLICATION:
+        boolean isNS = true;
+        for(int i = 0; i < nsBlock.length; i++ )
+          if( nsBlock[i] != data[i] )
+            isNS = false;
+        if( isNS )
+          {
+            isLooped = true;
+            loops = ((data[12] & 0xFF) << 8) | (data[13] & 0xFF);
+          }
+        break;
+
+      default:
+        break;
+      }
+  }
+
+  /**
+   * Reads a series of data blocks and merges them into a single one.
+   */
+  private byte[] readData(InputStream in) throws IOException
+  {
+    Vector v = new Vector();
+    int totalBytes = 0;
+
+    int n = in.read();
+    do
+      {
+        totalBytes += n;
+        byte[] block = new byte[ n ];
+        in.read(block);
+        v.add(block);
+        n = in.read();
+      }
+    while( n > 0 );
+
+    n = 0;
+    byte[] bigBuffer = new byte[ totalBytes ];
+    for( int i = 0; i < v.size(); i++ )
+      {
+        byte[] block = (byte[])v.elementAt(i);
+        System.arraycopy(block, 0, bigBuffer, n, block.length);
+        n += block.length;
+      }
+    return bigBuffer;
+  }
+
+  /**
+   * Loads a compressed image block and decompresses it.
+   */
+  private void decodeRaster(InputStream in) throws IOException
+  {
+    int initialCodeSize = in.read();
+    compressedData = readData( in );
+    dataBlockIndex = 0;
+
+    int rasterIndex = 0; // Index into the raster
+    int clearCode = (1 << initialCodeSize); // 256 usually
+    int endCode = clearCode + 1; // The stop code.
+
+    raster = new byte[ width * height ];
+
+    int codeSize = initialCodeSize + 1;
+    int code = getBits( codeSize ); // = clear
+    int nextCode = endCode + 1;
+
+    /*
+     * Initialize LZW dictionary
+     *
+     * First index - code #
+     * Second index:
+     * 0 = color index
+     * 1 = parent (-1 - no parent)
+     * 2 = first value
+     * 3 - depth
+     * The latter two aren't strictly necessary but make things faster, since
+     * copying the values forward is faster than going back and looking.
+     */
+    short[][] dictionary = new short[ 4096 ][ 4 ];
+
+    for(short i = 0; i < nColors; i ++ )
+      {
+        dictionary[i][0] = i;  // color index
+        dictionary[i][1] = -1; // parent
+        dictionary[i][2] = i;  // first
+        dictionary[i][3] = 1;  // depth
+      }
+
+    code = getBits( codeSize ); // get second code
+    raster[ rasterIndex++ ] = (byte)dictionary[code][0];
+    int old = code;
+    code = getBits( codeSize ); // start at the third code
+    int c;
+
+    do
+      {
+        if( code == clearCode )
+          {
+            codeSize = initialCodeSize + 1;
+            nextCode = endCode + 1;
+            // get and output second code
+            code = getBits( codeSize );
+            raster[ rasterIndex++ ] = (byte)dictionary[code][0];
+            old = code;
+          }
+        else
+          {
+            dictionary[nextCode][1] = (short)old; // parent = old
+            dictionary[nextCode][2] = dictionary[old][2]; // first pixel
+            dictionary[nextCode][3] = (short)(dictionary[old][3] + 1); // depth
+
+            // appended pixel  = first pixel of c
+            if( code < nextCode )
+              {
+                dictionary[nextCode][0] = dictionary[code][2];
+                old = code;
+              }
+            else // first of old
+              {
+                dictionary[nextCode][0] = dictionary[old][2];
+                old = nextCode;
+              }
+
+            c = old;
+            // output the code c
+            int depth = dictionary[c][3];
+            for( int i = depth - 1; i >= 0; i-- )
+              {
+                raster[ rasterIndex + i ] = (byte)dictionary[c][0];
+                c = dictionary[c][1]; // go to parent.
+              }
+            rasterIndex += depth;
+            nextCode ++;
+
+            if( codeSize < 12 && nextCode >= (1 << codeSize) )
+              codeSize++;
+          }
+        code = getBits( codeSize );
+      }
+    while( code != endCode && dataBlockIndex < compressedData.length );
+
+    compressedData = null; // throw away compressed data.
+  }
+
+  /**
+   * Returns nbits number of bits (in the LSBs) from compressedData
+   */
+  private int getBits( int nbits )
+  {
+    while( nbits > remainingBits )
+      {
+        int c = (compressedData[ dataBlockIndex++ ] & 0xFF) << remainingBits;
+        currentBits |= c;
+        remainingBits += 8;
+      }
+    int rval = (currentBits & ((1 << nbits) - 1));
+    currentBits = (currentBits >> nbits);
+    remainingBits -= nbits;
+    return rval;
+  }
+
+  /**
+   * Generic exception used by GIFFile to report decoding errors.
+   */
+  public static class GIFException extends Exception
+  {
+    public GIFException(String message)
+    {
+      super(message);
+    }
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/gif/GIFImageReader.java b/libjava/classpath/gnu/javax/imageio/gif/GIFImageReader.java
new file mode 100644
index 000000000..2cb59226b
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/gif/GIFImageReader.java
@@ -0,0 +1,241 @@
+/* GIFImageReader.java --
+   Copyright (C)  2006  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.gif;
+
+import gnu.javax.imageio.IIOInputStream;
+
+import java.io.IOException;
+import java.io.InputStream;
+import javax.imageio.*;
+import javax.imageio.spi.*;
+import javax.imageio.metadata.*;
+import javax.imageio.stream.ImageInputStream;
+import java.util.Iterator;
+import java.awt.image.BufferedImage;
+import java.awt.image.IndexColorModel;
+import java.awt.image.SampleModel;
+import java.awt.image.MultiPixelPackedSampleModel;
+import java.awt.image.SinglePixelPackedSampleModel;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferByte;
+import java.awt.image.Raster;
+import java.awt.image.WritableRaster;
+
+public class GIFImageReader extends ImageReader
+{
+  private GIFFile file;
+
+  protected GIFImageReader(ImageReaderSpi originatingProvider)
+  {
+    super( originatingProvider );
+    file = null;
+  }
+
+  private void readImage() throws IOException
+  {
+    if( file != null )
+      return;
+
+    try
+      {
+        if( input instanceof InputStream )
+          file = new GIFFile( (InputStream)input );
+        else
+          file = new GIFFile( new IIOInputStream((ImageInputStream)input) );
+      }
+    catch(GIFFile.GIFException ge)
+      {
+        throw new IIOException(ge.getMessage());
+      }
+  }
+
+  /**
+   * Returns the Global/Local palette as an IndexColorModel
+   */
+  private IndexColorModel getPalette(int index)
+  {
+    GIFFile f = file.getImage( index );
+    byte[] data = f.getRawPalette();
+    int nc = f.getNColors();
+    byte[] r = new byte[nc];
+    byte[] g = new byte[nc];
+    byte[] b = new byte[nc];
+
+    for(int i = 0; i < nc; i ++ )
+      {
+        r[i] = data[ i * 3 ];
+        g[i] = data[ i * 3 + 1 ];
+        b[i] = data[ i * 3 + 2 ];
+      }
+
+    if( f.hasTransparency() )
+      {
+        byte[] a = new byte[nc];
+        for(int i = 0; i < nc; i ++ )
+          a[i] = (byte)0xFF;
+        a[f.getTransparentIndex()] = 0;
+        return new IndexColorModel(8, nc, r, g, b, a);
+      }
+
+    return new IndexColorModel(8, nc, r, g, b);
+  }
+
+  private void validateIndex(int imageIndex)
+    throws IndexOutOfBoundsException
+  {
+    if( imageIndex < 0 || imageIndex >= getNumImages(false) )
+      throw new IndexOutOfBoundsException("Invalid image index.");
+  }
+
+  public void setInput(Object input)
+  {
+    super.setInput(input);
+  }
+
+  public void setInput(Object input,
+                       boolean seekForwardOnly,
+                       boolean ignoreMetadata)
+  {
+    super.setInput(input, seekForwardOnly, ignoreMetadata);
+  }
+
+  public void setInput(Object input, boolean isStreamable)
+  {
+    super.setInput(input, isStreamable);
+
+    if (!(input instanceof ImageInputStream) &&
+        !(input instanceof InputStream))
+      throw new IllegalArgumentException("Input not an ImageInputStream.");
+  }
+
+  private void checkStream() throws IOException
+  {
+    if (!(input instanceof ImageInputStream) &&
+        !(input instanceof InputStream))
+      throw new IllegalStateException("Input not an ImageInputStream or InputStream.");
+
+    if(input == null)
+      throw new IllegalStateException("No input stream.");
+  }
+
+  public int getWidth(int imageIndex) throws IOException
+  {
+    validateIndex( imageIndex );
+    return file.getImage( imageIndex ).getWidth();
+  }
+
+  public int getHeight(int imageIndex) throws IOException
+  {
+    validateIndex( imageIndex );
+    return file.getImage( imageIndex ).getHeight();
+  }
+
+  public Iterator getImageTypes(int imageIndex)
+  {
+    validateIndex( imageIndex );
+    return null;
+  }
+
+  /**
+   * Returns the number of images.
+   */
+  public int getNumImages(boolean allowSearch)
+  {
+    try // Image should be loaded here already. But just in case:
+      {
+        readImage();
+      }
+    catch(IOException ioe)
+      {
+        return 0; // Well, now we're in trouble. But return something anyway.
+      }
+    return file.nImages();
+  }
+
+
+  // FIXME: Support metadata
+  public IIOMetadata getImageMetadata(int imageIndex)
+  {
+    validateIndex( imageIndex );
+    return null;
+  }
+
+  // FIXME: Support metadata
+  public IIOMetadata getStreamMetadata()
+  {
+    return null;
+  }
+
+  /**
+   * Reads the image indexed by imageIndex and returns it as
+   * a complete BufferedImage, using a supplied ImageReadParam.
+   */
+  public BufferedImage read(int imageIndex, ImageReadParam param)
+    throws IOException, IIOException
+  {
+    validateIndex( imageIndex );
+    GIFFile f = file.getImage( imageIndex );
+    int width = f.getWidth();
+    int height = f.getHeight();
+    SampleModel sm;
+    switch( f.getNColors() )
+      {
+      case 16:
+        sm = new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE,
+                                             width, height, 4);
+        break;
+      case 4:
+        sm = new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE,
+                                             width, height, 2);
+        break;
+      case 2:
+        sm = new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE,
+                                             width, height, 1);
+        break;
+      default:
+        sm = new SinglePixelPackedSampleModel(DataBuffer.TYPE_BYTE,
+                                              width, height,
+                                              new int[] {0xFF});
+        break;
+      }
+    DataBuffer db = new DataBufferByte(f.getRawImage(), width * height, 0);
+    WritableRaster raster = Raster.createWritableRaster(sm, db, null);
+
+    return new BufferedImage(getPalette( imageIndex ), raster, false, null);
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/gif/GIFImageReaderSpi.java b/libjava/classpath/gnu/javax/imageio/gif/GIFImageReaderSpi.java
new file mode 100644
index 000000000..285ca42e4
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/gif/GIFImageReaderSpi.java
@@ -0,0 +1,124 @@
+/* GIFImageReaderSpi.java --
+   Copyright (C)  2006  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.gif;
+
+import gnu.javax.imageio.IIOInputStream;
+
+import java.io.InputStream;
+import java.io.IOException;
+import java.util.Locale;
+import javax.imageio.ImageReader;
+import javax.imageio.spi.ImageReaderSpi;
+import javax.imageio.stream.ImageInputStream;
+
+public class GIFImageReaderSpi extends ImageReaderSpi
+{
+  static final String vendorName = "GNU";
+  static final String version = "0.1";
+  static final String readerClassName =
+    "gnu.javax.imageio.gif.GIFImageReader";
+  static final String[] names = { "Compuserve GIF" };
+  static final String[] suffixes = { ".gif" };
+  static final String[] MIMETypes = {
+    "image/gif",
+    "image/x-gif"}; // Not sure this is legal, but it seems to be used a bit
+  static final String[] writerSpiNames = null;
+  static final boolean supportsStandardStreamMetadataFormat = false;
+  static final String nativeStreamMetadataFormatName = null;
+  static final String nativeStreamMetadataFormatClassName = null;
+  static final String[] extraStreamMetadataFormatNames = null;
+  static final String[] extraStreamMetadataFormatClassNames = null;
+  static final boolean supportsStandardImageMetadataFormat = false;
+  static final String nativeImageMetadataFormatName = null;
+  static final String nativeImageMetadataFormatClassName = null;
+  static final String[] extraImageMetadataFormatNames = null;
+  static final String[] extraImageMetadataFormatClassNames = null;
+
+  public GIFImageReaderSpi()
+  {
+    super(vendorName, version,
+          names, suffixes, MIMETypes,
+          readerClassName,
+          new Class[]{ ImageInputStream.class, InputStream.class },
+          writerSpiNames,
+          supportsStandardStreamMetadataFormat,
+          nativeStreamMetadataFormatName,
+          nativeStreamMetadataFormatClassName,
+          extraStreamMetadataFormatNames,
+          extraStreamMetadataFormatClassNames,
+          supportsStandardImageMetadataFormat,
+          nativeImageMetadataFormatName,
+          nativeImageMetadataFormatClassName,
+          extraImageMetadataFormatNames,
+          extraImageMetadataFormatClassNames);
+  }
+
+  public String getDescription(Locale locale)
+  {
+    return "Compuserve GIF";
+  }
+
+  public boolean canDecodeInput(Object input)
+    throws IOException
+  {
+    if( input == null )
+      throw new IllegalArgumentException("Input object cannot be null.");
+
+    if( !(input instanceof ImageInputStream) &&
+        !(input instanceof InputStream))
+      return false;
+
+    boolean retval;
+    InputStream in;
+    if( input instanceof ImageInputStream )
+      in = new IIOInputStream( (ImageInputStream)input );
+    else
+      in = (InputStream)input;
+
+    in.mark(10); // we read 6 bytes
+    retval = GIFFile.readSignature( in );
+    in.reset();
+
+    return retval;
+  }
+
+  public ImageReader createReaderInstance(Object extension)
+  {
+    return new GIFImageReader(this);
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/jpeg/DCT.java b/libjava/classpath/gnu/javax/imageio/jpeg/DCT.java
new file mode 100644
index 000000000..fda52e5f5
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/jpeg/DCT.java
@@ -0,0 +1,347 @@
+/* DCT.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.jpeg;
+
+/**
+ * Discrete Cosine Transformations.
+ */
+public class DCT
+{
+
+  /**
+   * Cosine matrix
+   */
+  public double c[][] = new double[8][8];
+
+  /**
+   * Transformed cosine matrix
+   */
+  public double cT[][] = new double[8][8];
+
+  public DCT()
+  {
+    initMatrix();
+  }
+
+  /**
+   * Figure A.3.3 IDCT, Cu Cv on A-5 of the ISO DIS 10918-1. Requirements and
+   * Guidelines.
+   *
+   * @param u
+   * @return
+   */
+  public static double C(int u)
+  {
+    return ((u == 0) ? (double) 1 / (double) Math.sqrt((double) 2)
+                     : (double) 1);
+  }
+
+  /**
+   * Initialize matrix values for the fast_idct function
+   */
+  private void initMatrix()
+  {
+    for (int j = 0; j < 8; j++)
+      {
+        double nn = (double) (8);
+        c[0][j] = 1.0 / Math.sqrt(nn);
+        cT[j][0] = c[0][j];
+      }
+    for (int i = 1; i < 8; i++)
+      {
+      for (int j = 0; j < 8; j++)
+        {
+          double jj = (double) j;
+          double ii = (double) i;
+          c[i][j] =
+            Math.sqrt(2.0 / 8.0)
+            * Math.cos(((2.0 * jj + 1.0) * ii * Math.PI) / (2.0 * 8.0));
+          cT[j][i] = c[i][j];
+        }
+      }
+  }
+
+  /**
+   * slow_idct - Figure A.3.3 IDCT (informative) on A-5 of the ISO DIS
+   * 10918-1. Requirements and Guidelines. This is a slow IDCT, there are
+   * better algorithms to use, it's fairly expensive with processor speed.
+   *
+   * @param matrix
+   * @return
+   */
+  public static double[][] slow_idct(double[][] matrix)
+  {
+    double[][] output = new double[matrix.length][matrix.length];
+    for (int y = 0; y < 8; y++)
+      {
+        for (int x = 0; x < 8; x++)
+          {
+            double val = 0;
+            for (double v = 0; v < 8; v++)
+              {
+                double innerloop = 0;
+                for (double u = 0; u < 8; u++)
+                  innerloop += (DCT.C((int) u) / (double) 2)
+                           * matrix[(int) v][(int) u]
+                           * Math.cos((2 * x + 1) * u * Math.PI / (double) 16)
+                           * Math.cos((2 * y + 1) * v * Math.PI / (double) 16);
+                val += (DCT.C((int) v) / (double) 2) * innerloop;
+              }
+            output[y][x] = (val + 128);
+          }
+      }
+    return (output);
+  }
+
+  public static float[][] slow_fdct(float[][] value)
+  {
+    float[][] buffer = new float[8][8];
+
+    for (int u = 0; u < 8; u++)
+      {
+        for (int v = 0; v < 8; v++)
+          {
+            buffer[u][v] =
+              (float) (1 / 4) * (float) C((int) u) * (float) C((int) v);
+            float innerval = 0;
+            for (int x = 0; x < 8; x++)
+              {
+                for (int y = 0; y < 8; y++)
+                  {
+                    innerval += value[y][x]
+                                  * Math.cos(((2 * x + 1) * u * Math.PI) / 16)
+                                  * Math.cos(((2 * y + 1) * v * Math.PI) / 16);
+                  }
+              }
+            buffer[u][v] *= innerval;
+          }
+      }
+    return (buffer);
+  }
+
+  public float[][] fast_fdct(float[][] input)
+  {
+    float output[][] = new float[8][8];
+    double temp[][] = new double[8][8];
+    double temp1;
+    int i;
+    int j;
+    int k;
+
+    for (i = 0; i < 8; i++)
+      {
+        for (j = 0; j < 8; j++)
+          {
+            temp[i][j] = 0.0;
+            for (k = 0; k < 8; k++)
+              {
+                temp[i][j] += (((int) (input[i][k]) - 128) * cT[k][j]);
+              }
+          }
+      }
+
+    for (i = 0; i < 8; i++)
+      {
+        for (j = 0; j < 8; j++)
+          {
+            temp1 = 0.0;
+
+            for (k = 0; k < 8; k++)
+              {
+                temp1 += (c[i][k] * temp[k][j]);
+              }
+
+            output[i][j] = (int) Math.round(temp1) * 8;
+          }
+      }
+
+    return output;
+  }
+
+  /**
+   * fast_idct - Figure A.3.3 IDCT (informative) on A-5 of the ISO DIS
+   * 10918-1. Requires and Guidelines. This is a fast IDCT, it much more
+   * effecient and only inaccurate at about 1/1000th of a percent of values
+   * analyzed. Cannot be static because initMatrix must run before any
+   * fast_idct values can be computed.
+   *
+   * @param input
+   * @return
+   */
+  public double[][] fast_idct(double[][] input)
+  {
+    double output[][] = new double[8][8];
+    double temp[][] = new double[8][8];
+    double temp1;
+    int i, j, k;
+    for (i = 0; i < 8; i++)
+      {
+        for (j = 0; j < 8; j++)
+          {
+            temp[i][j] = 0.0;
+            for (k = 0; k < 8; k++)
+              {
+                temp[i][j] += input[i][k] * c[k][j];
+              }
+          }
+      }
+    for (i = 0; i < 8; i++)
+      {
+        for (j = 0; j < 8; j++)
+          {
+            temp1 = 0.0;
+            for (k = 0; k < 8; k++)
+              temp1 += cT[i][k] * temp[k][j];
+            temp1 += 128.0;
+            if (temp1 < 0)
+              output[i][j] = 0;
+            else if (temp1 > 255)
+              output[i][j] = 255;
+            else
+              output[i][j] = (int) Math.round(temp1);
+          }
+      }
+    return output;
+  }
+
+  public double[][] idj_fast_fdct(float input[][])
+  {
+    double output[][] = new double[8][8];
+    double tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
+    double tmp10, tmp11, tmp12, tmp13;
+    double z1, z2, z3, z4, z5, z11, z13;
+    int i;
+    int j;
+
+    // Subtracts 128 from the input values
+    for (i = 0; i < 8; i++)
+      {
+        for (j = 0; j < 8; j++)
+          {
+            output[i][j] = ((double) input[i][j] - (double) 128.0);
+            //                        input[i][j] -= 128;
+
+          }
+      }
+
+    for (i = 0; i < 8; i++)
+      {
+        tmp0 = output[i][0] + output[i][7];
+        tmp7 = output[i][0] - output[i][7];
+        tmp1 = output[i][1] + output[i][6];
+        tmp6 = output[i][1] - output[i][6];
+        tmp2 = output[i][2] + output[i][5];
+        tmp5 = output[i][2] - output[i][5];
+        tmp3 = output[i][3] + output[i][4];
+        tmp4 = output[i][3] - output[i][4];
+
+        tmp10 = tmp0 + tmp3;
+        tmp13 = tmp0 - tmp3;
+        tmp11 = tmp1 + tmp2;
+        tmp12 = tmp1 - tmp2;
+
+        output[i][0] = tmp10 + tmp11;
+        output[i][4] = tmp10 - tmp11;
+
+        z1 = (tmp12 + tmp13) * (double) 0.707106781;
+        output[i][2] = tmp13 + z1;
+        output[i][6] = tmp13 - z1;
+
+        tmp10 = tmp4 + tmp5;
+        tmp11 = tmp5 + tmp6;
+        tmp12 = tmp6 + tmp7;
+
+        z5 = (tmp10 - tmp12) * (double) 0.382683433;
+        z2 = ((double) 0.541196100) * tmp10 + z5;
+        z4 = ((double) 1.306562965) * tmp12 + z5;
+        z3 = tmp11 * ((double) 0.707106781);
+
+        z11 = tmp7 + z3;
+        z13 = tmp7 - z3;
+
+        output[i][5] = z13 + z2;
+        output[i][3] = z13 - z2;
+        output[i][1] = z11 + z4;
+        output[i][7] = z11 - z4;
+      }
+
+    for (i = 0; i < 8; i++)
+      {
+        tmp0 = output[0][i] + output[7][i];
+        tmp7 = output[0][i] - output[7][i];
+        tmp1 = output[1][i] + output[6][i];
+        tmp6 = output[1][i] - output[6][i];
+        tmp2 = output[2][i] + output[5][i];
+        tmp5 = output[2][i] - output[5][i];
+        tmp3 = output[3][i] + output[4][i];
+        tmp4 = output[3][i] - output[4][i];
+
+        tmp10 = tmp0 + tmp3;
+        tmp13 = tmp0 - tmp3;
+        tmp11 = tmp1 + tmp2;
+        tmp12 = tmp1 - tmp2;
+
+        output[0][i] = tmp10 + tmp11;
+        output[4][i] = tmp10 - tmp11;
+
+        z1 = (tmp12 + tmp13) * (double) 0.707106781;
+        output[2][i] = tmp13 + z1;
+        output[6][i] = tmp13 - z1;
+
+        tmp10 = tmp4 + tmp5;
+        tmp11 = tmp5 + tmp6;
+        tmp12 = tmp6 + tmp7;
+
+        z5 = (tmp10 - tmp12) * (double) 0.382683433;
+        z2 = ((double) 0.541196100) * tmp10 + z5;
+        z4 = ((double) 1.306562965) * tmp12 + z5;
+        z3 = tmp11 * ((double) 0.707106781);
+
+        z11 = tmp7 + z3;
+        z13 = tmp7 - z3;
+
+        output[5][i] = z13 + z2;
+        output[3][i] = z13 - z2;
+        output[1][i] = z11 + z4;
+        output[7][i] = z11 - z4;
+      }
+
+    return output;
+  }
+
+}
diff --git a/libjava/classpath/gnu/javax/imageio/jpeg/HuffmanTable.java b/libjava/classpath/gnu/javax/imageio/jpeg/HuffmanTable.java
new file mode 100644
index 000000000..78f3c1c4f
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/jpeg/HuffmanTable.java
@@ -0,0 +1,207 @@
+/* HuffmanTable.java --
+   Copyright (C)  2006  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.jpeg;
+
+import java.io.IOException;
+
+import javax.imageio.plugins.jpeg.JPEGHuffmanTable;
+
+
+/**
+ * This Object construct a JPEGHuffmanTable which can be used to encode/decode
+ * a scan from a JPEG codec stream. The table must be initalized with either a
+ * BITS byte amount and a Huffman Table Value for decoding or a Huffman Size
+ * and Huffman Code table for encoding.
+ */
+public class HuffmanTable
+{
+  public final static int HUFFMAN_MAX_TABLES = 4;
+
+  private short[]  huffcode = new short[256];
+  private short[]  huffsize = new short[256];
+  private short[]  EHUFCO;
+  private short[]  EHUFSI;
+  private short[]  valptr = new short[16];
+  private short[]  mincode = {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+                            -1,-1,-1};
+  private short[]  maxcode = {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+                            -1, -1, -1};
+  private short[] huffval;
+  private short[] bits;
+
+  static byte JPEG_DC_TABLE = 0;
+  static byte JPEG_AC_TABLE = 1;
+
+  private short lastk = 0;
+
+  public HuffmanTable(JPEGHuffmanTable table)
+  {
+    huffcode = table.getValues();
+    bits = table.getLengths();
+  }
+
+  /**
+   * Generated from FIGURE C.1 - Generation of table of Huffman code sizes on
+   * ISO DIS 10918-1. Requirements and Guidelines
+   */
+  private void generateSizeTable()
+  {
+    short index=0;
+    for(short i=0; i < bits.length ; i++)
+      {
+        for(short j=0; j < bits[i] ; j++)
+          {
+            huffsize[index] = (short) (i+1);
+            index++;
+          }
+      }
+    lastk = index;
+  }
+
+  /**
+   * Generated from FIGURE C.2 - Generation of table of Huffman codes on
+   * ISO DIS 10918-1. Requirements and Guidelines
+   */
+  private void generateCodeTable()
+  {
+    short k=0;
+    short si = huffsize[0];
+    short code = 0;
+    for(short i=0; i < huffsize.length ; i++)
+      {
+        while(huffsize[k]==si)
+          {
+            huffcode[k] = code;
+            code++;
+            k++;
+          }
+        code <<= 1;
+        si++;
+      }
+  }
+
+  /**
+   * Generated from FIGURE F.15 - Generation of decode table generation on
+   * ISO DIS 10918-1. Requirements and Guidelines
+   */
+  private void generateDecoderTables()
+  {
+    short bitcount = 0;
+    for(int i=0; i < 16 ; i++)
+      {
+        if(bits[i]!=0)
+          valptr[i] = bitcount;
+        for(int j=0 ; j < bits[i] ; j++)
+          {
+            if(huffcode[j+bitcount] < mincode[i] || mincode[i] == -1)
+              mincode[i] = huffcode[j+bitcount];
+
+            if(huffcode[j+bitcount] > maxcode[i])
+              maxcode[i] = huffcode[j+bitcount];
+          }
+        if(mincode[i]!=-1)
+          valptr[i] = (short) (valptr[i] - mincode[i]);
+        bitcount += bits[i];
+      }
+  }
+
+  /**
+   * Generated from FIGURE C.3 - Generation of Order Codes and tables EHUFCO
+   * and EHUFSI from the ISO DIS 10918-1. Requirements and Guidelines
+   */
+  public void orderCodes(boolean isDC)
+  {
+    EHUFCO = new short[isDC ? 15 : 255];
+    EHUFSI = new short[isDC ? 15 : 255];
+
+    for (int p=0; p < lastk ; p++)
+      {
+        int i = huffval[p];
+        if(i < 0 || i > EHUFCO.length || EHUFSI[i]!=0)
+          System.err.println("Error, bad huffman table.");
+        EHUFCO[i] = huffcode[p];
+        EHUFSI[i] = huffsize[p];
+      }
+  }
+
+  /**
+   * Generated from FIGURE F.12 - Extending the sign bit of a decoded value in on
+   * ISO DIS 10918-1. Requirements and Guidelines<p>
+   *
+   * @param diff TODO
+   * @param t TODO
+   * @return TODO
+   */
+  public static int extend(int diff, int t)
+  {
+    int Vt = (int)Math.pow(2,(t-1));
+    if(diff<Vt)
+      {
+        Vt=(-1 << t)+1;
+        diff=diff+Vt;
+      }
+    return diff;
+  }
+
+  /**
+   * Generated from FIGURE F.16 - Procedure for DECODE on
+   * ISO DIS 10918-1. Requirements and Guidelines<p>
+   *
+   * This function takes in a dynamic amount of bits and using the Huffman
+   * table returns information on how many bits must be read in to a byte in
+   * order to reconstruct said byte.
+   *
+   * @param JPEGStream the bits of the data stream.
+   */
+  public int decode(JPEGImageInputStream JPEGStream)
+    throws IOException, JPEGException
+  {
+    int i=0;
+    short code = (short) JPEGStream.readBits(1);
+    while(code > maxcode[i])
+      {
+        i++;
+        code <<= 1;
+        code |= JPEGStream.readBits(1);
+      }
+    int val = huffval[code+(valptr[i])];
+    if(val < 0)
+      val = 256 + val;
+    return val;
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/jpeg/JPEGComponent.java b/libjava/classpath/gnu/javax/imageio/jpeg/JPEGComponent.java
new file mode 100644
index 000000000..7be67a02a
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/jpeg/JPEGComponent.java
@@ -0,0 +1,351 @@
+/* JPEGComponent.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.jpeg;
+
+import java.util.ArrayList;
+import java.io.IOException;
+import java.awt.image.WritableRaster;
+
+import javax.imageio.plugins.jpeg.JPEGHuffmanTable;
+
+/**
+ * This class holds the methods to decode and write a component information to
+ * a raster.
+ */
+public class JPEGComponent
+{
+  public byte factorH, factorV, component_id, quant_id;
+  public int width = 0, height = 0, maxV = 0, maxH = 0;
+  public HuffmanTable ACTable;
+  public HuffmanTable DCTable;
+  public int[] quantizationTable;
+  public double previousDC = 0;
+  ArrayList data = new ArrayList();
+
+  /**
+   * Initializes the component
+   *
+   * @param id
+   * @param factorHorizontal
+   * @param factorVertical
+   * @param quantizationID
+   */
+  public JPEGComponent(byte id, byte factorHorizontal, byte factorVertical,
+                       byte quantizationID)
+  {
+    component_id = id;
+    factorH = factorHorizontal;
+    factorV = factorVertical;
+    quant_id = quantizationID;
+  }
+
+  /**
+   * If a restart marker is found with too little of an MCU count (i.e. our
+   * Restart Interval is 63 and we have 61 we copy the last MCU until it's
+   * full)
+   *
+   * @param index
+   * @param length
+   */
+  public void padMCU(int index, int length)
+  {
+    double[] src = (double[]) data.get(index - 1);
+    for (int i = 0; i < length; i++)
+      data.add(index, src);
+  }
+
+  /**
+   * Reset the interval by setting the previous DC value
+   */
+  public void resetInterval()
+  {
+    previousDC = 0;
+  }
+
+  /**
+   * Run the Quantization backward method on all of the block data.
+   */
+  public void quantitizeData()
+  {
+    for (int i = 0; i < data.size(); i++)
+      {
+        double[] mydata = (double[]) data.get(i);
+        for (int j = 0; j < mydata.length; j++)
+          mydata[j] *= quantizationTable[j];
+      }
+  }
+
+  public void setDCTable(JPEGHuffmanTable table)
+  {
+    DCTable = new HuffmanTable(table);
+  }
+
+  public void setACTable(JPEGHuffmanTable table)
+  {
+    ACTable = new HuffmanTable(table);
+  }
+
+  /**
+   * Run the Inverse DCT method on all of the block data
+   */
+  public void idctData(DCT myDCT)
+  {
+    for (int i = 0; i < data.size(); i++)
+      data.add(i,myDCT.fast_idct(ZigZag.decode8x8_map((double[]) data.remove(i))));
+  }
+
+  /**
+   * This scales up the component size based on the factor size. This
+   * calculates everyting up automatically so it's simply ran at the end of
+   * the frame to normalize the size of all of the components.
+   */
+  public void scaleByFactors()
+  {
+    int factorUpVertical = maxV / factorV;
+    int factorUpHorizontal = maxH / factorH;
+
+    if (factorUpVertical > 1)
+      {
+        for (int i = 0; i < data.size(); i++)
+          {
+            double[][] src = (double[][]) data.remove(i);
+            double[][] dest =
+              new double[src.length * factorUpVertical][src[0].length];
+            for (int j = 0; j < src.length; j++)
+              {
+                for (int u = 0; u < factorUpVertical; u++)
+                  {
+                    dest[j * factorUpVertical + u] = src[j];
+                  }
+              }
+            data.add(i, dest);
+          }
+      }
+
+    if (factorUpHorizontal > 1)
+      {
+        for (int i = 0; i < data.size(); i++)
+          {
+            double[][] src = (double[][]) data.remove(i);
+            double[][] dest =
+              new double[src.length][src[0].length * factorUpHorizontal];
+            for (int j = 0; j < src.length; j++)
+              {
+                for (int u = 0; u < src[0].length; u++)
+                  {
+                    for (int v = 0; v < factorUpHorizontal; v++)
+                      dest[j][u * factorUpHorizontal + v] = src[j][u];
+                  }
+              }
+            data.add(i, dest);
+          }
+      }
+  }
+
+  /**
+   * This write the block of data to the raster throwing out anything that
+   * spills over the raster width or height.
+   *
+   * @param raster
+   * @param data
+   * @param compIndex
+   * @param x
+   * @param y
+   */
+  public void writeBlock(WritableRaster raster, double[][] data,
+                         int compIndex, int x, int y)
+  {
+    for (int yIndex = 0; yIndex < data.length; yIndex++)
+      {
+        for (int xIndex = 0; xIndex < data[yIndex].length; xIndex++)
+          {
+            // The if statement is needed because blocks can spill over the
+            // frame width because they are padded to make sure we keep the
+            // height of the block the same as the width of the block
+            if (x + xIndex < raster.getWidth()
+                && y + yIndex < raster.getHeight())
+              raster.setSample(x + xIndex, y + yIndex, compIndex,
+                               data[yIndex][xIndex]);
+          }
+      }
+  }
+
+  /**
+   * This writes data to a raster block, so really it's reading not writing
+   * but it writes the data to the raster block by factor size in a zig zag
+   * fashion. This has the helper function writeBlock which does the actual
+   * writing.
+   *
+   * @param raster
+   * @param componentIndex
+   */
+  public void writeData(WritableRaster raster, int componentIndex)
+  {
+    int x = 0, y = 0, lastblockheight = 0, incrementblock = 0;
+
+    // Keep looping through all of the blocks until there are no more.
+    while(data.size() > 0)
+      {
+        int blockwidth = 0;
+        int blockheight = 0;
+
+        if (x >= raster.getWidth())
+          {
+            x = 0;
+            y += incrementblock;
+          }
+
+        // Loop through the horizontal component blocks of the MCU first
+        // then for each horizontal line write out all of the vertical
+        // components
+        for (int factorVIndex = 0; factorVIndex < factorV; factorVIndex++)
+          {
+            blockwidth = 0;
+
+            for (int factorHIndex = 0; factorHIndex < factorH; factorHIndex++)
+              {
+                // Captures the width of this block so we can increment the
+                // X coordinate
+                double[][] blockdata = (double[][]) data.remove(0);
+
+                // Writes the data at the specific X and Y coordinate of
+                // this component
+                writeBlock(raster, blockdata, componentIndex, x, y);
+                blockwidth += blockdata[0].length;
+                x += blockdata[0].length;
+                blockheight = blockdata.length;
+              }
+            y += blockheight;
+            x -= blockwidth;
+            lastblockheight += blockheight;
+          }
+        y -= lastblockheight;
+        incrementblock = lastblockheight;
+        lastblockheight = 0;
+        x += blockwidth;
+      }
+  }
+
+  /**
+   * Set the quantization table for this component.
+   *
+   * @param quanttable
+   */
+  public void setQuantizationTable(int[] quanttable)
+  {
+    quantizationTable = quanttable;
+  }
+
+  /**
+   * Read in a partial MCU for this component
+   *
+   * @param stream TODO
+   * @throws JPEGException TODO
+   * @throws IOException TODO
+   */
+  public void readComponentMCU(JPEGImageInputStream stream)
+    throws JPEGException, IOException
+  {
+    for (int i = 0; i < factorH * factorV; i++)
+      {
+        double dc = decode_dc_coefficient(stream);
+        double[] datablock = decode_ac_coefficients(stream);
+        datablock[0] = dc;
+        data.add(datablock);
+      }
+  }
+
+  /**
+   * Generated from text on F-22, F.2.2.1 - Huffman decoding of DC
+   * coefficients on ISO DIS 10918-1. Requirements and Guidelines.
+   *
+   * @param JPEGStream TODO
+   *
+   * @return TODO
+   * @throws JPEGException TODO
+   * @throws IOException TODO
+   */
+  public double decode_dc_coefficient(JPEGImageInputStream JPEGStream)
+        throws JPEGException, IOException
+  {
+    int t = DCTable.decode(JPEGStream);
+    double diff = JPEGStream.readBits(t);
+    diff = HuffmanTable.extend((int) diff, t);
+    diff = (previousDC + diff);
+    previousDC = diff;
+    return diff;
+  }
+
+  /**
+   * Generated from text on F-23, F.13 - Huffman decoded of AC coefficients
+   * on ISO DIS 10918-1. Requirements and Guidelines.
+   *
+   * @param JPEGStream TODO
+   * @return TODO
+   *
+   * @throws JPEGException TODO
+   * @throws IOException TODO
+   */
+  public double[] decode_ac_coefficients(JPEGImageInputStream JPEGStream)
+    throws JPEGException, IOException
+  {
+    double[] zz = new double[64];
+
+    for (int k = 1; k < 64; k++)
+      {
+        int s = ACTable.decode(JPEGStream);
+        int r = s >> 4;
+        s &= 15;
+
+        if (s != 0)
+          {
+            k += r;
+            r = (int) JPEGStream.readBits(s);
+            s = HuffmanTable.extend(r, s);
+            zz[k] = s;
+          }
+        else
+          {
+            if (r != 15)
+              return (zz);
+            k += 15;
+          }
+      }
+    return zz;
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/jpeg/JPEGDecoder.java b/libjava/classpath/gnu/javax/imageio/jpeg/JPEGDecoder.java
new file mode 100644
index 000000000..11d547f4d
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/jpeg/JPEGDecoder.java
@@ -0,0 +1,625 @@
+/* JPEGDecoder.java --
+   Copyright (C)  2006  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.jpeg;
+
+import java.io.IOException;
+import java.nio.ByteOrder;
+
+import javax.imageio.plugins.jpeg.JPEGHuffmanTable;
+import javax.imageio.plugins.jpeg.JPEGQTable;
+import javax.imageio.stream.ImageInputStream;
+
+import java.util.ArrayList;
+import java.util.Hashtable;
+import java.awt.Point;
+import java.awt.Transparency;
+import java.awt.color.ColorSpace;
+import java.awt.image.BufferedImage;
+import java.awt.image.ComponentColorModel;
+import java.awt.image.DataBuffer;
+import java.awt.image.Raster;
+import java.awt.image.WritableRaster;
+
+public class JPEGDecoder
+{
+  byte majorVersion;
+  byte minorVersion;
+  byte units;
+  short Xdensity;
+  short Ydensity;
+  byte Xthumbnail;
+  byte Ythumbnail;
+  byte[] thumbnail;
+  BufferedImage image;
+  int width;
+  int height;
+
+  byte marker;
+
+  /**
+   * This decoder expects JFIF 1.02 encoding.
+   */
+  public static final byte MAJOR_VERSION = (byte) 1;
+  public static final byte MINOR_VERSION = (byte) 2;
+
+  /**
+   * The length of the JFIF field not including thumbnail data.
+   */
+  public static final short JFIF_FIXED_LENGTH = 16;
+
+  /**
+   * The length of the JFIF extension field not including extension
+   * data.
+   */
+  public static final short JFXX_FIXED_LENGTH = 8;
+
+  private JPEGImageInputStream jpegStream;
+
+  ArrayList jpegFrames = new ArrayList();
+
+  JPEGHuffmanTable[] dcTables = new JPEGHuffmanTable[4];
+  JPEGHuffmanTable[] acTables = new JPEGHuffmanTable[4];
+  JPEGQTable[] qTables = new JPEGQTable[4];
+
+    public int getHeight()
+    {
+      return height;
+    }
+
+    public int getWidth()
+    {
+        return width;
+    }
+  public JPEGDecoder(ImageInputStream in)
+    throws IOException, JPEGException
+  {
+    jpegStream = new JPEGImageInputStream(in);
+    jpegStream.setByteOrder(ByteOrder.LITTLE_ENDIAN);
+
+    if (jpegStream.findNextMarker() != JPEGMarker.SOI)
+      throw new JPEGException("Failed to find SOI marker.");
+
+    if (jpegStream.findNextMarker() != JPEGMarker.APP0)
+      throw new JPEGException("Failed to find APP0 marker.");
+
+    int length = jpegStream.readShort();
+    if (!(length >= JFIF_FIXED_LENGTH))
+      throw new JPEGException("Failed to find JFIF field.");
+
+    byte[] identifier = new byte[5];
+    jpegStream.read(identifier);
+    if (identifier[0] != JPEGMarker.JFIF_J
+        || identifier[1] != JPEGMarker.JFIF_F
+        || identifier[2] != JPEGMarker.JFIF_I
+        || identifier[3] != JPEGMarker.JFIF_F
+        || identifier[4] != JPEGMarker.X00)
+      throw new JPEGException("Failed to read JFIF identifier.");
+
+    majorVersion = jpegStream.readByte();
+    minorVersion = jpegStream.readByte();
+    if (majorVersion != MAJOR_VERSION
+        || (majorVersion == MAJOR_VERSION
+            && minorVersion < MINOR_VERSION))
+      throw new JPEGException("Unsupported JFIF version.");
+
+    units = jpegStream.readByte();
+    if (units > (byte) 2)
+      throw new JPEGException("Units field is out of range.");
+
+    Xdensity = jpegStream.readShort();
+    Ydensity = jpegStream.readShort();
+    Xthumbnail = jpegStream.readByte();
+    Ythumbnail = jpegStream.readByte();
+
+    // 3 * for RGB data
+    int thumbnailLength = 3 * Xthumbnail * Ythumbnail;
+    if (length > JFIF_FIXED_LENGTH
+        && thumbnailLength != length - JFIF_FIXED_LENGTH)
+      throw new JPEGException("Invalid length, Xthumbnail"
+                              + " or Ythumbnail field.");
+
+    if (thumbnailLength > 0)
+      {
+        thumbnail = new byte[thumbnailLength];
+        if (jpegStream.read(thumbnail) != thumbnailLength)
+          throw new IOException("Failed to read thumbnail.");
+      }
+  }
+
+  public void decode()
+    throws IOException
+  {
+    System.out.println ("DECODE!!!");
+    // The frames in this jpeg are loaded into a list. There is
+    // usually just one frame except in heirarchial progression where
+    // there are multiple frames.
+    JPEGFrame frame = null;
+
+    // The restart interval defines how many MCU's we should have
+    // between the 8-modulo restart marker. The restart markers allow
+    // us to tell whether or not our decoding process is working
+    // correctly, also if there is corruption in the image we can
+    // recover with these restart intervals. (See RSTm DRI).
+    int resetInterval = 0;
+
+    // The JPEGDecoder constructor parses the JFIF field.  At this
+    // point jpegStream points to the first byte after the JFIF field.
+
+    // Find the first marker after the JFIF field.
+    byte marker = jpegStream.findNextMarker();
+
+    // Check for a JFIF extension field directly following the JFIF
+    // header and advance the current marker to the next marker in the
+    // stream, if necessary.
+    decodeJFIFExtension();
+
+    // Loop through until there are no more markers to read in, at
+    // that point everything is loaded into the jpegFrames array and
+    // can be processed.
+    while (true)
+      {
+        switch (marker)
+          {
+            // APPn Application Reserved Information - Just throw this
+            // information away because we wont be using it.
+          case JPEGMarker.APP0:
+          case JPEGMarker.APP1:
+          case JPEGMarker.APP2:
+          case JPEGMarker.APP3:
+          case JPEGMarker.APP4:
+          case JPEGMarker.APP5:
+          case JPEGMarker.APP6:
+          case JPEGMarker.APP7:
+          case JPEGMarker.APP8:
+          case JPEGMarker.APP9:
+          case JPEGMarker.APP10:
+          case JPEGMarker.APP11:
+          case JPEGMarker.APP12:
+          case JPEGMarker.APP13:
+          case JPEGMarker.APP14:
+          case JPEGMarker.APP15:
+            jpegStream.skipBytes(jpegStream.readShort() - 2);
+            break;
+
+          case JPEGMarker.SOF0:
+            // SOFn Start of Frame Marker, Baseline DCT - This is the start
+            // of the frame header that defines certain variables that will
+            // be carried out through the rest of the encoding. Multiple
+            // frames are used in a heirarchiel system, however most JPEG's
+            // only contain a single frame.
+            jpegFrames.add(new JPEGFrame());
+            frame = (JPEGFrame) jpegFrames.get(jpegFrames.size() - 1);
+            // Skip the frame length.
+            jpegStream.readShort();
+            // Bits percision, either 8 or 12.
+            frame.setPrecision(jpegStream.readByte());
+            // Scan lines = to the height of the frame.
+            frame.setScanLines(jpegStream.readShort());
+            // Scan samples per line = to the width of the frame.
+            frame.setSamplesPerLine(jpegStream.readShort());
+            // Number of Color Components (or channels).
+            frame.setComponentCount(jpegStream.readByte());
+
+            // Set the color mode for this frame, so far only 2 color
+            // modes are supported.
+            if (frame.getComponentCount() == 1)
+              frame.setColorMode(JPEGFrame.JPEG_COLOR_GRAY);
+            else
+              frame.setColorMode(JPEGFrame.JPEG_COLOR_YCbCr);
+            // Add all of the necessary components to the frame.
+            for (int i = 0; i < frame.getComponentCount(); i++)
+              frame.addComponent(jpegStream.readByte(), jpegStream.readByte(),
+                                 jpegStream.readByte());
+            break;
+
+          case JPEGMarker.SOF2:
+            jpegFrames.add(new JPEGFrame());
+            frame = (JPEGFrame) jpegFrames.get(jpegFrames.size() - 1);
+            // Skip the frame length.
+            jpegStream.readShort();
+            // Bits percision, either 8 or 12.
+            frame.setPrecision(jpegStream.readByte());
+            // Scan lines = to the height of the frame.
+            frame.setScanLines(jpegStream.readShort());
+            // Scan samples per line = to the width of the frame.
+            frame.setSamplesPerLine(jpegStream.readShort());
+            // Number of Color Components (or channels).
+            frame.setComponentCount(jpegStream.readByte());
+
+            // Set the color mode for this frame, so far only 2 color
+            // modes are supported.
+            if (frame.getComponentCount() == 1)
+              frame.setColorMode(JPEGFrame.JPEG_COLOR_GRAY);
+            else
+              frame.setColorMode(JPEGFrame.JPEG_COLOR_YCbCr);
+
+            // Add all of the necessary components to the frame.
+            for (int i = 0; i < frame.getComponentCount(); i++)
+              frame.addComponent(jpegStream.readByte(), jpegStream.readByte(),
+                                 jpegStream.readByte());
+            break;
+
+          case JPEGMarker.DHT:
+            // DHT non-SOF Marker - Huffman Table is required for decoding
+            // the JPEG stream, when we receive a marker we load in first
+            // the table length (16 bits), the table class (4 bits), table
+            // identifier (4 bits), then we load in 16 bytes and each byte
+            // represents the count of bytes to load in for each of the 16
+            // bytes. We load this into an array to use later and move on 4
+            // huffman tables can only be used in an image.
+            int huffmanLength = (jpegStream.readShort() - 2);
+
+            // Keep looping until we are out of length.
+            int index = huffmanLength;
+
+            // Multiple tables may be defined within a DHT marker. This
+            // will keep reading until there are no tables left, most
+            // of the time there are just one tables.
+            while (index > 0)
+              {
+                // Read the identifier information and class
+                // information about the Huffman table, then read the
+                // 16 byte codelength in and read in the Huffman values
+                // and put it into table info.
+                byte huffmanInfo = jpegStream.readByte();
+                byte tableClass = (byte) (huffmanInfo >> 4);
+                byte huffmanIndex = (byte) (huffmanInfo & 0x0f);
+                short[] codeLength = new short[16];
+                jpegStream.readFully(codeLength, 0, codeLength.length);
+                int huffmanValueLen = 0;
+                for (int i = 0; i < 16; i++)
+                  huffmanValueLen += codeLength[i];
+                index -= (huffmanValueLen + 17);
+                short[] huffmanVal = new short[huffmanValueLen];
+                for (int i = 0; i < huffmanVal.length; i++)
+                  huffmanVal[i] = jpegStream.readByte();
+                // Assign DC Huffman Table.
+                if (tableClass == HuffmanTable.JPEG_DC_TABLE)
+                  dcTables[(int) huffmanIndex] = new JPEGHuffmanTable(codeLength,
+                                                                      huffmanVal);
+                // Assign AC Huffman Table.
+                else if (tableClass == HuffmanTable.JPEG_AC_TABLE)
+                  acTables[(int) huffmanIndex] = new JPEGHuffmanTable(codeLength,
+                                                                      huffmanVal);
+              }
+            break;
+          case JPEGMarker.DQT:
+            // DQT non-SOF Marker - This defines the quantization
+            // coeffecients, this allows us to figure out the quality of
+            // compression and unencode the data. The data is loaded and
+            // then stored in to an array.
+            short quantizationLength = (short) (jpegStream.readShort() - 2);
+            for (int j = 0; j < quantizationLength / 65; j++)
+              {
+                byte quantSpecs = jpegStream.readByte();
+                int[] quantData = new int[64];
+                if ((byte) (quantSpecs >> 4) == 0)
+                  // Precision 8 bit.
+                  {
+                    for (int i = 0; i < 64; i++)
+                      quantData[i] = jpegStream.readByte();
+
+                  }
+                else if ((byte) (quantSpecs >> 4) == 1)
+                  // Precision 16 bit.
+                  {
+                    for (int i = 0; i < 64; i++)
+                      quantData[i] = jpegStream.readShort();
+                  }
+                qTables[(int) (quantSpecs & 0x0f)] = new JPEGQTable (quantData);
+              }
+            break;
+          case JPEGMarker.SOS:
+            // SOS non-SOF Marker - Start Of Scan Marker, this is where the
+            // actual data is stored in a interlaced or non-interlaced with
+            // from 1-4 components of color data, if three components most
+            // likely a YCrCb model, this is a fairly complex process.
+
+            // Read in the scan length.
+            jpegStream.readShort();
+            // Number of components in the scan.
+            byte numberOfComponents = jpegStream.readByte();
+            byte[] componentSelector = new byte[numberOfComponents];
+            for (int i = 0; i < numberOfComponents; i++)
+              {
+                // Component ID, packed byte containing the Id for the
+                // AC table and DC table.
+                byte componentID = jpegStream.readByte();
+                byte tableInfo = jpegStream.readByte();
+                frame.setHuffmanTables(componentID,
+                                       acTables[(byte) (tableInfo >> 4)],
+                                       dcTables[(byte) (tableInfo & 0x0f)]);
+                componentSelector[i] = componentID;
+              }
+            byte startSpectralSelection = jpegStream.readByte();
+            byte endSpectralSelection = jpegStream.readByte();
+            byte successiveApproximation = jpegStream.readByte();
+
+            int mcuIndex = 0;
+            int mcuTotalIndex = 0;
+            // This loops through until a MarkerTagFound exception is
+            // found, if the marker tag is a RST (Restart Marker) it
+            // simply skips it and moves on this system does not handle
+            // corrupt data streams very well, it could be improved by
+            // handling misplaced restart markers.
+            while (true)
+              {
+                try
+                  {
+                    // Loop though capturing MCU, instruct each
+                    // component to read in its necessary count, for
+                    // scaling factors the components automatically
+                    // read in how much they need
+                    for (int compIndex = 0; compIndex < numberOfComponents; compIndex++)
+                      {
+                        JPEGComponent comp = frame.components.getComponentByID(componentSelector[compIndex]);
+                        comp.readComponentMCU(jpegStream);
+                      }
+                    mcuIndex++;
+                    mcuTotalIndex++;
+                  }
+                // We've found a marker, see if the marker is a restart
+                // marker or just the next marker in the stream. If
+                // it's the next marker in the stream break out of the
+                // while loop, if it's just a restart marker skip it
+                catch (JPEGMarkerFoundException bse)
+                  {
+                    // Handle JPEG Restart Markers, this is where the
+                    // count of MCU's per interval is compared with
+                    // the count actually obtained, if it's short then
+                    // pad on some MCU's ONLY for components that are
+                    // greater than one. Also restart the DC prediction
+                    // to zero.
+                    if (marker == JPEGMarker.RST0
+                        || marker == JPEGMarker.RST1
+                        || marker == JPEGMarker.RST2
+                        || marker == JPEGMarker.RST3
+                        || marker == JPEGMarker.RST4
+                        || marker == JPEGMarker.RST5
+                        || marker == JPEGMarker.RST6
+                        || marker == JPEGMarker.RST7)
+                      {
+                        for (int compIndex = 0; compIndex < numberOfComponents; compIndex++)
+                          {
+                            JPEGComponent comp = frame.components.getComponentByID(componentSelector[compIndex]);
+                            if (compIndex > 1)
+                              comp.padMCU(mcuTotalIndex, resetInterval - mcuIndex);
+                            comp.resetInterval();
+                          }
+                        mcuTotalIndex += (resetInterval - mcuIndex);
+                        mcuIndex = 0;
+                      }
+                    else
+                      {
+                        // We're at the end of our scan, exit out.
+                        break;
+                      }
+                  }
+              }
+            break;
+          case JPEGMarker.DRI:
+            // DRI - This defines the restart interval, if we have a
+            // restart interval when we reach our restart modulo calculate
+            // whether the count of MCU's specified in the restart
+            // interval have been reached, if they havent then pad with
+            // whatever MCU was last used, this is supposed to be a form of
+            // error recovery but it turns out that some JPEG encoders
+            // purposely cause missing MCU's on repeating MCU's to compress
+            // data even more (even though it adds an extra layer of
+            // complexity.. But since when is JPEG easy?
+            jpegStream.skipBytes(2);
+            resetInterval = jpegStream.readShort();
+            break;
+          case JPEGMarker.COM:
+            // COM - This is a comment that was inserted into the JPEG, we
+            // simply skip over the comment because it's really of no
+            // importance, usually contains a verbal description of the
+            // application or author who created the JPEG.
+            jpegStream.skipBytes(jpegStream.readShort() - 2);
+            break;
+          case JPEGMarker.DNL:
+            // DNL - This sets the height of the image. This is the Define
+            // Number Lines for the image, I'm not sure exactly why we need
+            // this but, whatever we'll abide.
+            frame.setScanLines(jpegStream.readShort());
+            break;
+          case JPEGMarker.EOI:
+            // EOI - End of Image, this processes the frames and turns the
+            // frames into a buffered image.
+
+            if (jpegFrames.size() == 0)
+              {
+                return;
+              }
+            else if (jpegFrames.size() == 1)
+              {
+                // Only one frame, JPEG Non-Heirarchial Frame.
+
+                DCT myDCT = new DCT();
+                WritableRaster raster =
+                  Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE,
+                                                 frame.width,
+                                                 frame.height,
+                                                 frame.getComponentCount(),
+                                                 new Point(0, 0));
+
+                // Unencode the data.
+                for (int i = 0; i < frame.getComponentCount(); i++)
+                  {
+                    JPEGComponent comp = frame.components.get(i);
+                    comp.setQuantizationTable(qTables[comp.quant_id].getTable());
+                    comp.quantitizeData();
+                    comp.idctData(myDCT);
+                  }
+                // Scale the image and write the data to the raster.
+                for (int i = 0; i < frame.getComponentCount(); i++)
+                  {
+                    JPEGComponent comp = frame.components.get(i);
+                    comp.scaleByFactors();
+                    comp.writeData(raster, i);
+                    // Ensure garbage collection.
+                    comp = null;
+                  }
+                // Grayscale Color Image (1 Component).
+                if (frame.getComponentCount() == 1)
+                  {
+                    ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_GRAY);
+                    ComponentColorModel ccm =
+                      new ComponentColorModel(cs, false, false,
+                                              Transparency.OPAQUE,
+                                              DataBuffer.TYPE_BYTE);
+                    image = new BufferedImage(ccm, raster, false,
+                                              new Hashtable());
+                  }
+                // YCbCr Color Image (3 Components).
+                else if (frame.getComponentCount() == 3)
+                  {
+                    ComponentColorModel ccm =
+                      new ComponentColorModel(new YCbCr_ColorSpace(), false,
+                                              false, Transparency.OPAQUE,
+                                              DataBuffer.TYPE_BYTE);
+                    image = new BufferedImage(ccm, raster, false,
+                                              new Hashtable());
+                  }
+                // Possibly CMYK or RGBA ?
+                else
+                  {
+                    throw new JPEGException("Unsupported Color Mode: 4 "
+                                            + "Component Color Mode found.");
+                  }
+                height = frame.height;
+                width = frame.width;
+              }
+            else
+              {
+                //JPEG Heirarchial Frame (progressive or baseline).
+                throw new JPEGException("Unsupported Codec Type:"
+                                        + " Hierarchial JPEG");
+              }
+            break;
+          case JPEGMarker.SOF1:
+            // ERROR - If we encounter any of the following marker codes
+            // error out with a codec exception, progressive, heirarchial,
+            // differential, arithmetic, lossless JPEG's are not supported.
+            // This is where enhancements can be made for future versions.
+            // Thankfully 99% of all JPEG's are baseline DCT.
+            throw new JPEGException("Unsupported Codec Type: Extended "
+                                    + "Sequential DCT JPEG's Not-Supported");
+            //case JPEGMarker.SOF2:
+            //  throw new JPEGException("Unsupported Codec Type: Progressive DCT JPEG's Not-Supported");
+          case JPEGMarker.SOF3:
+            throw new JPEGException("Unsupported Codec Type:"
+                                    + " Lossless (sequential)");
+          case JPEGMarker.SOF5:
+            throw new JPEGException("Unsupported Codec Type:"
+                                    + " Differential sequential DCT");
+          case JPEGMarker.SOF6:
+            throw new JPEGException("Unsupported Codec Type:"
+                                    + " Differential progressive DCT");
+          case JPEGMarker.SOF7:
+            throw new JPEGException("Unsupported Codec Type:"
+                                    + " Differential lossless");
+          case JPEGMarker.SOF9:
+          case JPEGMarker.SOF10:
+          case JPEGMarker.SOF11:
+          case JPEGMarker.SOF13:
+          case JPEGMarker.SOF14:
+          case JPEGMarker.SOF15:
+            throw new JPEGException("Unsupported Codec Type:"
+                                    + " Arithmetic Coding Frame");
+          default:
+            // Unknown marker found, ignore it.
+          }
+        marker = jpegStream.findNextMarker();
+      }
+  }
+
+  // If the current marker is APP0, tries to decode a JFIF extension
+  // and advances the current marker to the next marker in the stream.
+  private void decodeJFIFExtension() throws IOException
+  {
+    if (marker == JPEGMarker.APP0)
+      {
+        int length = jpegStream.readShort();
+
+        if (length >= JFXX_FIXED_LENGTH)
+          {
+            byte[] identifier = new byte[5];
+            jpegStream.read(identifier);
+            if (identifier[0] != JPEGMarker.JFIF_J
+                || identifier[1] != JPEGMarker.JFIF_F
+                || identifier[2] != JPEGMarker.JFIF_X
+                || identifier[3] != JPEGMarker.JFIF_X
+                || identifier[4] != JPEGMarker.X00)
+              // Not a JFXX field.  Ignore it and continue.
+              jpegStream.skipBytes(length - 7);
+            else
+              {
+                byte extension_code = jpegStream.readByte();
+
+                switch (extension_code)
+                  {
+                  case JPEGMarker.JFXX_JPEG:
+                    // FIXME: add support for JFIF Extension:
+                    // Thumbnail coded using JPEG.
+                    jpegStream.skipBytes(length - 8);
+                  case JPEGMarker.JFXX_ONE_BPP:
+                    // FIXME: add support for JFIF Extension:
+                    // Thumbnail stored using 1 byte/pixel.
+                    jpegStream.skipBytes(length - 8);
+                  case JPEGMarker.JFXX_THREE_BPP:
+                    // FIXME: add support for JFIF Extension:
+                    // Thumbnail stored using 3 bytes/pixel.
+                    jpegStream.skipBytes(length - 8);
+                  }
+              }
+          }
+        else
+          {
+            // Unknown APP0 marker.  Ignore it and continue.
+            jpegStream.skipBytes(length - 2);
+          }
+        marker = jpegStream.findNextMarker();
+      }
+  }
+
+  public BufferedImage getImage()
+  {
+    return image;
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/jpeg/JPEGException.java b/libjava/classpath/gnu/javax/imageio/jpeg/JPEGException.java
new file mode 100644
index 000000000..a2c06e27e
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/jpeg/JPEGException.java
@@ -0,0 +1,48 @@
+/* JPEGException.java --
+   Copyright (C)  2006  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.jpeg;
+
+import javax.imageio.*;
+
+public class JPEGException extends IIOException
+{
+  public JPEGException(String message)
+  {
+     super(message);
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/jpeg/JPEGFrame.java b/libjava/classpath/gnu/javax/imageio/jpeg/JPEGFrame.java
new file mode 100644
index 000000000..35aed728a
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/jpeg/JPEGFrame.java
@@ -0,0 +1,108 @@
+/* JPEGFrame.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.jpeg;
+
+import javax.imageio.plugins.jpeg.JPEGHuffmanTable;
+
+public class JPEGFrame
+{
+  public final static byte JPEG_COLOR_GRAY = 1;
+  public final static byte JPEG_COLOR_RGB = 2;
+  public final static byte JPEG_COLOR_YCbCr = 3;
+  public final static byte JPEG_COLOR_CMYK = 4;
+
+  public byte precision = 8;
+  public byte colorMode = JPEGFrame.JPEG_COLOR_YCbCr;
+  public byte componentCount = 0;
+
+  public short width=0, height=0;
+
+  public JPEGScan components;
+
+  public JPEGFrame()
+  {
+    components = new JPEGScan();
+  }
+
+  public void addComponent(byte componentID, byte sampleFactors,
+                           byte quantizationTableID)
+  {
+    byte sampleHorizontalFactor = (byte)(sampleFactors >> 4);
+    byte sampleVerticalFactor = (byte)(sampleFactors & 0x0f);
+    components.addComponent(componentID, sampleHorizontalFactor,
+                            sampleVerticalFactor, quantizationTableID);
+  }
+
+  public void setPrecision(byte data)
+  {
+    precision = data;
+  }
+
+  public void setScanLines(short data)
+  {
+    height = data;
+  }
+
+  public void setSamplesPerLine(short data)
+  {
+    width = data;
+  }
+
+  public void setColorMode(byte data)
+  {
+    colorMode = data;
+  }
+
+  public void setComponentCount(byte data)
+  {
+    componentCount = data;
+  }
+
+  public byte getComponentCount()
+  {
+    return componentCount;
+  }
+
+  public void setHuffmanTables(byte componentID, JPEGHuffmanTable ACTable,
+                               JPEGHuffmanTable DCTable)
+  {
+    JPEGComponent comp = components.getComponentByID(componentID);
+    comp.setACTable(ACTable);
+    comp.setDCTable(DCTable);
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/jpeg/JPEGImageInputStream.java b/libjava/classpath/gnu/javax/imageio/jpeg/JPEGImageInputStream.java
new file mode 100644
index 000000000..f2c26d9d5
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/jpeg/JPEGImageInputStream.java
@@ -0,0 +1,188 @@
+/* JPEGImageInputStream.java --
+   Copyright (C)  2006  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.jpeg;
+
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+import javax.imageio.stream.ImageInputStreamImpl;
+
+public class JPEGImageInputStream
+  extends ImageInputStreamImpl
+{
+  private ImageInputStream in;
+
+  byte marker;
+
+  public JPEGImageInputStream(ImageInputStream in)
+  {
+    super();
+
+    this.in = in;
+  }
+
+  public int read()
+    throws IOException
+  {
+    setBitOffset(0);
+    return in.read();
+  }
+
+  public int read(byte[] data, int offset, int len)
+    throws IOException
+  {
+    setBitOffset(0);
+    return in.read(data, offset, len);
+  }
+
+  /**
+   * Pull a byte from the stream, this checks to see if the byte is 0xff
+   * and if the next byte isn't 0x00 (stuffed byte) it errors out. If it's
+   * 0x00 then it simply ignores the byte.
+   *
+   * @return the next byte in the buffer
+   *
+   * @throws IOException TODO
+   * @throws BitStreamException TODO
+   */
+  private byte pullByte() throws IOException, JPEGMarkerFoundException
+  {
+    byte mybyte = readByte();
+    // FIXME: handle multiple 0xff in a row
+    if(mybyte==(byte)(0xff))
+      {
+        byte secondbyte = readByte();
+        if(secondbyte != (byte)(0x00))
+          {
+            marker = secondbyte;
+            throw new JPEGMarkerFoundException();
+          }
+      }
+    return mybyte;
+  }
+
+  /**
+   * This returns the marker that was last encountered.  This should only be
+   * used if removeBit() throws a MarkerTagFound exception.
+   *
+   * @return marker as byte
+   */
+  public byte getMarker()
+  {
+    return marker;
+  }
+
+  /**
+   * Removes a bit from the buffer. (Removes from the top of a queue). This
+   * also checks for markers and throws MarkerTagFound exception if it does.
+   * If MarkerTagFound is thrown you can use getMarker() method to get the
+   * marker that caused the throw.
+   *
+   * @param l specifies how many bits you want to remove and add to the
+   *        integer
+   * @return the amount of bits specified by l as an integer
+   *
+   * @throws IOException TODO
+   * @throws JPEGMarkerFoundException
+   * @throws BitStreamException TODO
+   */
+  public int readBit()
+  throws IOException, JPEGMarkerFoundException
+{
+  checkClosed();
+
+  // Calc new bit offset here, readByte resets it.
+  int newOffset = (bitOffset + 1) & 0x7;
+
+  byte data = pullByte();
+
+  if (bitOffset != 0)
+    {
+        seek(getStreamPosition() - 1);
+        data = (byte) (data >> (8 - newOffset));
+    }
+
+  bitOffset = newOffset;
+  return data & 0x1;
+}
+
+
+  /**
+   * This method skips over the the data and finds the next position
+   * in the bit sequence with a X'FF' X'??' sequence.  Multiple X'FF
+   * bytes in sequence are considered padding and interpreted as one
+   * X'FF byte.
+   *
+   * @return the next marker byte in the stream
+   * @throws IOException if the end of the stream is reached
+   * unexpectedly
+   */
+  public byte findNextMarker()
+    throws IOException
+  {
+    boolean marked0xff = false;
+    byte byteinfo = JPEGMarker.X00;
+
+    setBitOffset(0);
+    while (true)
+      {
+        byteinfo = readByte();
+        if (!marked0xff)
+          {
+            if (byteinfo == JPEGMarker.XFF)
+              marked0xff = true;
+          }
+        else
+          {
+            if (byteinfo == JPEGMarker.XFF)
+              // Ignore the value 0xff when it is immediately
+              // followed by another 0xff byte.
+              continue;
+            else if (byteinfo == JPEGMarker.X00)
+              // The sequence 0xff 0x00 is used to encode the
+              // actual value 0xff.  So restart our search for a
+              // marker.
+              marked0xff = false;
+            else
+              // One or more 0xff values were follwed by a
+              // non-0x00, non-0xff value so return this as the
+              // marker byte.
+              return byteinfo;
+          }
+      }
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/jpeg/JPEGImageReader.java b/libjava/classpath/gnu/javax/imageio/jpeg/JPEGImageReader.java
new file mode 100644
index 000000000..5ecbe0f8c
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/jpeg/JPEGImageReader.java
@@ -0,0 +1,141 @@
+/* JPEGImageReader.java --
+   Copyright (C)  2006  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.jpeg;
+
+import java.io.IOException;
+import javax.imageio.*;
+import javax.imageio.spi.*;
+import javax.imageio.metadata.*;
+import javax.imageio.stream.ImageInputStream;
+import java.util.Iterator;
+import java.awt.image.BufferedImage;
+
+public class JPEGImageReader extends ImageReader
+{
+  JPEGDecoder decoder;
+
+  protected JPEGImageReader(ImageReaderSpi originatingProvider)
+  {
+    super(originatingProvider);
+    System.out.println("JPEGIMAGEREADER!!!");
+  }
+
+  // Abstract ImageReader methods.
+  public int getHeight(int imageIndex)
+    throws IOException
+  {
+    checkIndex(imageIndex);
+    decodeStream();
+    return decoder.getHeight();
+  }
+
+  public IIOMetadata getImageMetadata(int imageIndex)
+    throws IOException
+  {
+    // FIXME: handle metadata
+    checkIndex(imageIndex);
+    return null;
+  }
+
+  public Iterator getImageTypes(int imageIndex)
+    throws IOException
+  {
+    return null;
+  }
+
+  public int getNumImages(boolean allowSearch)
+    throws IOException
+  {
+    return 1;
+  }
+
+  public IIOMetadata getStreamMetadata()
+    throws IOException
+  {
+    // FIXME: handle metadata
+    return null;
+  }
+
+  public int getWidth(int imageIndex)
+    throws IOException
+  {
+    checkIndex(imageIndex);
+    decodeStream();
+    return decoder.getWidth();
+  }
+
+  public BufferedImage read(int imageIndex, ImageReadParam param)
+    throws IOException
+  {
+    checkIndex(imageIndex);
+    decodeStream();
+    return decoder.getImage();
+  }
+
+  // private helper methods
+  private void checkIndex(int imageIndex)
+    throws IndexOutOfBoundsException
+  {
+    if (imageIndex != 0)
+      throw new IndexOutOfBoundsException();
+  }
+
+  private void checkStream() throws IOException
+  {
+    if (!(input instanceof ImageInputStream))
+      throw new IllegalStateException("Input not an ImageInputStream.");
+    if(input == null)
+      throw new IllegalStateException("No input stream.");
+  }
+
+  private void decodeStream()
+    throws IOException, IIOException
+  {
+    System.out.println("DECONDING 1");
+    if (decoder != null)
+      return;
+
+    System.out.println("DECONDING 2");
+    checkStream();
+
+    System.out.println("DECONDING 3");
+    decoder = new JPEGDecoder((ImageInputStream)input);
+    System.out.println("DECONDING 4");
+    decoder.decode();
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/jpeg/JPEGImageReaderSpi.java b/libjava/classpath/gnu/javax/imageio/jpeg/JPEGImageReaderSpi.java
new file mode 100644
index 000000000..c45b818c7
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/jpeg/JPEGImageReaderSpi.java
@@ -0,0 +1,137 @@
+/* JPEGImageReaderSpi.java --
+   Copyright (C)  2006  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.jpeg;
+
+import java.io.IOException;
+import java.util.Locale;
+import javax.imageio.ImageReader;
+import javax.imageio.spi.ImageReaderSpi;
+import javax.imageio.spi.IIORegistry;
+import javax.imageio.stream.ImageInputStream;
+
+public class JPEGImageReaderSpi extends ImageReaderSpi
+{
+  static final String vendorName = "GNU";
+  static final String version = "0.1";
+  static final String readerClassName =
+    "gnu.javax.imageio.jpeg.JPEGImageReader";
+  static final String[] names = { "JPEG" };
+  static final String[] suffixes = { ".jpeg", ".jpg", ".jpe" };
+  static final String[] MIMETypes = { "image/jpeg" };
+  static final String[] writerSpiNames =
+    { "gnu.javax.imageio.jpeg.JPEGImageWriterSpi" };
+
+  static final boolean supportsStandardStreamMetadataFormat = false;
+  static final String nativeStreamMetadataFormatName = null;
+  static final String nativeStreamMetadataFormatClassName = null;
+  static final String[] extraStreamMetadataFormatNames = null;
+  static final String[] extraStreamMetadataFormatClassNames = null;
+  static final boolean supportsStandardImageMetadataFormat = false;
+  static final String nativeImageMetadataFormatName = null;
+  static final String nativeImageMetadataFormatClassName = null;
+  static final String[] extraImageMetadataFormatNames = null;
+  static final String[] extraImageMetadataFormatClassNames = null;
+
+  private static JPEGImageReaderSpi readerSpi;
+
+  public JPEGImageReaderSpi()
+  {
+    super(vendorName, version,
+          names, suffixes, MIMETypes,
+          readerClassName,
+          STANDARD_INPUT_TYPE, // Accept ImageInputStreams
+          writerSpiNames,
+          supportsStandardStreamMetadataFormat,
+          nativeStreamMetadataFormatName,
+          nativeStreamMetadataFormatClassName,
+          extraStreamMetadataFormatNames,
+          extraStreamMetadataFormatClassNames,
+          supportsStandardImageMetadataFormat,
+          nativeImageMetadataFormatName,
+          nativeImageMetadataFormatClassName,
+          extraImageMetadataFormatNames,
+          extraImageMetadataFormatClassNames);
+    System.out.println ("JPEGImageReaderSPI!!!");
+  }
+
+  public String getDescription(Locale locale)
+  {
+    return "JPEG ISO 10918-1, JFIF V1.02";
+  }
+
+  public boolean canDecodeInput(Object input)
+    throws IOException
+  {
+    if (!(input instanceof ImageInputStream))
+      return false;
+
+    ImageInputStream in = (ImageInputStream) input;
+    boolean retval;
+
+    in.mark();
+    try
+      {
+        new JPEGDecoder(in);
+        retval = true;
+      }
+    catch(JPEGException e)
+      {
+        retval = false;
+      }
+    in.reset();
+
+    return retval;
+  }
+
+  public ImageReader createReaderInstance(Object extension)
+  {
+    return new JPEGImageReader(this);
+  }
+
+  public static void registerSpis(IIORegistry reg)
+  {
+    reg.registerServiceProvider(getReaderSpi(), ImageReaderSpi.class);
+  }
+
+  public static synchronized JPEGImageReaderSpi getReaderSpi()
+  {
+    if (readerSpi == null)
+      readerSpi = new JPEGImageReaderSpi();
+    return readerSpi;
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/jpeg/JPEGMarker.java b/libjava/classpath/gnu/javax/imageio/jpeg/JPEGMarker.java
new file mode 100644
index 000000000..bc6350fbc
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/jpeg/JPEGMarker.java
@@ -0,0 +1,205 @@
+/* JPEGMarker.java --
+   Copyright (C)  2006  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.jpeg;
+
+public class JPEGMarker
+{
+  /**
+   * JFIF identifiers.
+   */
+  public final static byte JFIF_J = (byte) 0x4a;
+  public final static byte JFIF_F = (byte) 0x46;
+  public final static byte JFIF_I = (byte) 0x49;
+  public final static byte JFIF_X = (byte) 0x46;
+
+  /**
+   * JFIF extension codes.
+   */
+  public final static byte JFXX_JPEG = (byte) 0x10;
+  public final static byte JFXX_ONE_BPP = (byte) 0x11;
+  public final static byte JFXX_THREE_BPP = (byte) 0x13;
+
+  /**
+   * Marker prefix byte.
+   */
+  public final static byte XFF = (byte) 0xff;
+
+  /**
+   * Marker byte that represents a literal 0xff.
+   */
+  public final static byte X00 = (byte) 0x00;
+
+  /**
+   *  Application Reserved Keyword.
+   */
+  public final static byte APP0 = (byte) 0xe0;
+
+  public final static byte APP1 = (byte) 0xe1;
+  public final static byte APP2 = (byte) 0xe2;
+  public final static byte APP3 = (byte) 0xe3;
+  public final static byte APP4 = (byte) 0xe4;
+  public final static byte APP5 = (byte) 0xe5;
+  public final static byte APP6 = (byte) 0xe6;
+  public final static byte APP7 = (byte) 0xe7;
+  public final static byte APP8 = (byte) 0xe8;
+  public final static byte APP9 = (byte) 0xe9;
+  public final static byte APP10 = (byte) 0xea;
+  public final static byte APP11 = (byte) 0xeb;
+  public final static byte APP12 = (byte) 0xec;
+  public final static byte APP13 = (byte) 0xed;
+  public final static byte APP14 = (byte) 0xee;
+  public final static byte APP15 = (byte) 0xef;
+
+  /**
+   * Modulo Restart Interval.
+   */
+  public final static byte RST0 = (byte) 0xd0;
+
+  public final static byte RST1 = (byte) 0xd1;
+  public final static byte RST2 = (byte) 0xd2;
+  public final static byte RST3 = (byte) 0xd3;
+  public final static byte RST4 = (byte) 0xd4;
+  public final static byte RST5 = (byte) 0xd5;
+  public final static byte RST6 = (byte) 0xd6;
+  public final static byte RST7 = (byte) 0xd7;
+
+  /**
+   * Nondifferential Huffman-coding frame (baseline dct).
+   */
+  public final static byte SOF0 = (byte) 0xc0;
+
+  /**
+   * Nondifferential Huffman-coding frame (extended dct).
+   */
+  public final static byte SOF1 = (byte) 0xc1;
+
+  /**
+   * Nondifferential Huffman-coding frame (progressive dct).
+   */
+  public final static byte SOF2 = (byte) 0xc2;
+
+  /**
+   * Nondifferential Huffman-coding frame Lossless (Sequential).
+   */
+  public final static byte SOF3 = (byte) 0xc3;
+
+  /**
+   * Differential Huffman-coding frame Sequential DCT.
+   */
+  public final static byte SOF5 = (byte) 0xc5;
+
+  /**
+   * Differential Huffman-coding frame Progressive DCT.
+   */
+  public final static byte SOF6 = (byte) 0xc6;
+
+  /**
+   * Differential Huffman-coding frame lossless.
+   */
+  public final static byte SOF7 = (byte) 0xc7;
+
+  /**
+   * Nondifferential Arithmetic-coding frame (extended dct).
+   */
+  public final static byte SOF9 = (byte) 0xc9;
+
+  /**
+   * Nondifferential Arithmetic-coding frame (progressive dct).
+   */
+  public final static byte SOF10 = (byte) 0xca;
+
+  /**
+   * Nondifferential Arithmetic-coding frame (lossless).
+   */
+  public final static byte SOF11 = (byte) 0xcb;
+
+  /**
+   * Differential Arithmetic-coding frame (sequential dct).
+   */
+  public final static byte SOF13 = (byte) 0xcd;
+
+  /**
+   * Differential Arithmetic-coding frame (progressive dct).
+   */
+  public final static byte SOF14 = (byte) 0xce;
+
+  /**
+   * Differential Arithmetic-coding frame (lossless).
+   */
+  public final static byte SOF15 = (byte) 0xcf;
+
+  /**
+   * Huffman Table.
+   */
+  public final static byte DHT = (byte) 0xc4;
+
+  /**
+   * Quantization Table.
+   */
+  public final static byte DQT = (byte) 0xdb;
+
+  /**
+   * Start of Scan.
+   */
+  public final static byte SOS = (byte) 0xda;
+
+  /**
+   * Defined Restart Interval.
+   */
+  public final static byte DRI = (byte) 0xdd;
+
+  /**
+   * Comment in JPEG.
+   */
+  public final static byte COM = (byte) 0xfe;
+
+  /**
+   * Start of Image.
+   */
+  public final static byte SOI = (byte) 0xd8;
+
+  /**
+   * End of Image.
+   */
+  public final static byte EOI = (byte) 0xd9;
+
+  /**
+   * Define Number of Lines.
+   */
+  public final static byte DNL = (byte) 0xdc;
+}
diff --git a/libjava/classpath/gnu/javax/imageio/jpeg/JPEGMarkerFoundException.java b/libjava/classpath/gnu/javax/imageio/jpeg/JPEGMarkerFoundException.java
new file mode 100644
index 000000000..2e72d495b
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/jpeg/JPEGMarkerFoundException.java
@@ -0,0 +1,50 @@
+/* JPEGMarkerFoundException.java -- FIXME: briefly describe file purpose
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.jpeg;
+
+import java.io.IOException;
+
+public class JPEGMarkerFoundException
+    extends IOException
+{
+  public JPEGMarkerFoundException()
+  {
+    super("");
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/jpeg/JPEGScan.java b/libjava/classpath/gnu/javax/imageio/jpeg/JPEGScan.java
new file mode 100644
index 000000000..e07251021
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/jpeg/JPEGScan.java
@@ -0,0 +1,151 @@
+/* JPEGScan.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.jpeg;
+
+import java.util.ArrayList;
+
+public class JPEGScan
+{
+  private int maxHeight = 0, maxWidth = 0, maxV = 0, maxH = 0;
+  private int numOfComponents = 0, numOfComponentBlocks = 0;
+  private ArrayList components = new ArrayList();
+
+  public JPEGScan()
+  {
+    // Nothing to do here.
+  }
+
+  public JPEGScan(int h, int w)
+  {
+    maxHeight=h;
+    maxWidth=w;
+  }
+
+  private void recalculateDimensions()
+  {
+    JPEGComponent comp;
+
+    // Compute the maximum H, maximum V factors defined in Annex A of the ISO
+    // DIS 10918-1.
+    for(int i=0; i < components.size() ; i++)
+      {
+        comp = (JPEGComponent)components.get(i);
+        if(comp.factorH > maxH)
+          maxH=comp.factorH;
+        if(comp.factorV > maxV)
+          maxV=comp.factorV;
+      }
+
+    for(int i=0; i < components.size() ; i++)
+      {
+        comp = (JPEGComponent)components.get(i);
+        comp.maxH = maxH;
+        comp.maxV = maxV;
+      }
+
+  }
+
+  public void addComponent(byte id, byte factorHorizontal, byte factorVertical,
+                           byte quantizationID)
+  {
+    JPEGComponent component = new JPEGComponent(id, factorHorizontal, factorVertical, quantizationID);
+    components.add((Object)component);
+    recalculateDimensions();
+    numOfComponents++;
+    numOfComponentBlocks += factorHorizontal*factorVertical;
+  }
+
+  public JPEGComponent getComponentByID(byte id)
+  {
+    JPEGComponent comp = (JPEGComponent)components.get(0);
+    for(int i=0; i < components.size() ; i++)
+      {
+        comp=(JPEGComponent)components.get(i);
+        if(comp.component_id==id)
+          break;
+      }
+    return(comp);
+  }
+
+  public JPEGComponent get(int id)
+  {
+    return((JPEGComponent)components.get(id));
+  }
+
+  public int getX(byte id)
+  {
+    JPEGComponent comp = getComponentByID(id);
+    return(comp.width);
+  }
+
+  public int getY(byte id)
+  {
+    JPEGComponent comp = getComponentByID(id);
+    return(comp.height);
+  }
+
+  public int getMaxV()
+  {
+    return(maxV);
+  }
+
+  public int getMaxH()
+  {
+    return(maxH);
+  }
+
+  public void setWidth(int w)
+  {
+    maxWidth=w;
+  }
+
+  public void setHeight(int h)
+  {
+    maxHeight=h;
+  }
+
+  public int size()
+  {
+    return(numOfComponents);
+  }
+
+  public int sizeComponentBlocks()
+  {
+    return(numOfComponentBlocks);
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/jpeg/YCbCr_ColorSpace.java b/libjava/classpath/gnu/javax/imageio/jpeg/YCbCr_ColorSpace.java
new file mode 100644
index 000000000..a3970b7fa
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/jpeg/YCbCr_ColorSpace.java
@@ -0,0 +1,113 @@
+/* YCbCr_ColorSpace.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.jpeg;
+
+import java.awt.color.ColorSpace;
+
+public class YCbCr_ColorSpace extends ColorSpace {
+  public YCbCr_ColorSpace() {
+    super(ColorSpace.TYPE_YCbCr, 3);
+  }
+
+  public float[] fromCIEXYZ(float[] data) {
+    return(new float[data.length]);
+  }
+
+  public float[] toCIEXYZ(float[] data) {
+    return(new float[data.length]);
+  }
+
+  public float[] fromRGB(float[] data) {
+    return(new float[data.length]);
+  }
+
+  /* YCbCr to RGB range 0 to 1 */
+  public float[] toRGB(float[] data) {
+    float[] dest = new float[3];
+
+    data[0] *= 255;
+    data[1] *= 255;
+    data[2] *= 255;
+
+    dest[0] = (float)data[0] + (float)1.402*((float)data[2]-(float)128);
+    dest[1] = (float)data[0] - (float)0.34414*((float)data[1]-(float)128) - (float)0.71414*((float)data[2]-(float)128);
+    dest[2] = (float)data[0] + (float)1.772*((float)data[1]-(float)128);
+
+    dest[0] /= 255;
+    dest[1] /= 255;
+    dest[2] /= 255;
+
+    //dest[0] = ((float)1.164*((float)data[0]*(float)255 - (float)16) + (float)1.596*((float)data[2]*(float)255 - (float)128))/(float)255;
+    //dest[1] = ((float)1.164*((float)data[0]*(float)255 - (float)16) - (float)0.813*((float)data[2]*(float)255 - (float)128) - (float)0.392*(data[1]*255 - 128))/(float)255;
+    //dest[2] = ((float)1.164*((float)data[0]*(float)255 - (float)16) + (float)2.017*((float)data[1]*(float)255 - (float)128))/(float)255;
+
+    //System.err.println("toRGB values received: 0: "+data[0]+" 1: "+data[1]+" 2: "+data[2]+" sent: 0: "+dest[0]+" 1: "+dest[1]+" 2: "+dest[2]);
+    if(dest[0] < (float)0)
+      dest[0] = 0;
+    if(dest[1] < (float)0)
+      dest[1] = 0;
+    if(dest[2] < (float)0)
+      dest[2] = 0;
+
+    if(dest[0] > (float)1)
+      dest[0] = 1;
+    if(dest[1] > (float)1)
+      dest[1] = 1;
+    if(dest[2] > (float)1)
+      dest[2] = 1;
+
+
+    return(dest);
+  }
+
+  /* RGB to YCbCr range 0-255 */
+  public static float[] toYCbCr(float[] data) {
+    float[] dest = new float[3];
+    //dest[0] = (float)0.257*data[0] + (float)0.504*data[1] + (float)0.098*data[2] + 16;
+    //dest[1] = (float)-0.148*data[0] - (float)0.291*data[1] + (float)0.439*data[2] + 128;
+    //dest[2] = (float)0.439*data[0] - (float)0.368*data[1] - (float)0.071*data[2] + 128;
+
+    dest[0] = (float)((0.299 * (float)data[0] + 0.587 * (float)data[1] + 0.114 * (float)data[2]));
+    dest[1] = 128 + (float)((-0.16874 * (float)data[0] - 0.33126 * (float)data[1] + 0.5 * (float)data[2]));
+    dest[2] = 128 + (float)((0.5 * (float)data[0] - 0.41869 * (float)data[1] - 0.08131 * (float)data[2]));
+
+
+    return(dest);
+
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/jpeg/ZigZag.java b/libjava/classpath/gnu/javax/imageio/jpeg/ZigZag.java
new file mode 100644
index 000000000..9aac0df40
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/jpeg/ZigZag.java
@@ -0,0 +1,520 @@
+/* ZigZag.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.jpeg;
+
+/**
+ * This class implements the Zig Zag Algorithm on any array with
+ * the same amount of rows and columns. It takes a matrix and in turn builds an
+ * encoded byte array (or double array) from it. The adverse is also true, this
+ * will take a byte or double array and build a matrix based on the zig zag
+ * algorithm.
+ * <p>This is used exclusively in the JPEG DCT encoding.</p>
+ */
+public class ZigZag
+{
+  public final static boolean ZIGZAG_FORWARD = true;
+  public final static boolean ZIGZAG_BACKWARD = false;
+  public final static int ZIGZAG_8X8_MAP[] =
+  {
+   0,   1,  8, 16,  9,  2,  3, 10,
+   17, 24, 32, 25, 18, 11,  4,  5,
+   12, 19, 26, 33, 40, 48, 41, 34,
+   27, 20, 13,  6,  7, 14, 21, 28,
+   35, 42, 49, 56, 57, 50, 43, 36,
+   29, 22, 15, 23, 30, 37, 44, 51,
+   58, 59, 52, 45, 38, 31, 39, 46,
+   53, 60, 61, 54, 47, 55, 62, 63
+  };
+
+  /**
+   * Encodes a matrix of equal width and height to a byte array.
+   *
+   * @param matrix
+   *
+   * @return
+   */
+  public static byte[] encode(byte[][] matrix)
+  {
+    byte[] buffer = new byte[matrix.length ^ 2];
+    boolean direction = ZigZag.ZIGZAG_FORWARD;
+    int x = 0, y = 0, index = 0;
+    for (int zigIndex = 0; zigIndex < (matrix.length * 2 - 1);
+         zigIndex++, direction = !direction)
+      {
+        if (direction == ZigZag.ZIGZAG_FORWARD)
+          {
+            while (x >= 0 && y != matrix.length)
+              {
+                if (x == matrix.length)
+                  {
+                    x--;
+                    y++;
+                  }
+                buffer[index] = matrix[x][y];
+                y++;
+                x--;
+                index++;
+              }
+            x++;
+          }
+        else
+          {
+            while (y >= 0 && x != matrix.length)
+              {
+                if (y == matrix.length)
+                  {
+                    y--;
+                    x++;
+                  }
+                buffer[index] = matrix[x][y];
+                y--;
+                x++;
+                index++;
+              }
+            y++;
+          }
+      }
+    return (buffer);
+  }
+
+  /**
+   * Encodes a matrix of equal width and height to a double array
+   *
+   * @param matrix
+   *
+   * @return
+   */
+  public static double[] encode(double[][] matrix)
+  {
+    double[] buffer = new double[matrix.length * matrix.length];
+    boolean direction = ZigZag.ZIGZAG_FORWARD;
+    int x = 0, y = 0, index = 0;
+    for (int zigIndex = 0; zigIndex < (matrix.length * 2 - 1);
+         zigIndex++, direction = !direction)
+      {
+        if (direction == ZigZag.ZIGZAG_FORWARD)
+          {
+            while (x >= 0 && y != matrix.length)
+              {
+                if (x == matrix.length)
+                  {
+                    x--;
+                    y++;
+                  }
+                buffer[index] = matrix[x][y];
+                y++;
+                x--;
+                index++;
+              }
+            x++;
+          }
+        else
+          {
+            while (y >= 0 && x != matrix.length)
+              {
+                if (y == matrix.length)
+                  {
+                    y--;
+                    x++;
+                  }
+                buffer[index] = matrix[x][y];
+                y--;
+                x++;
+                index++;
+              }
+            y++;
+          }
+      }
+    return (buffer);
+  }
+
+  /**
+   * Encodes a matrix of equal width and height to a float array
+   *
+   * @param matrix
+   *
+   * @return
+   */
+  public static float[] encode(float[][] matrix)
+  {
+    float[] buffer = new float[matrix.length * matrix.length];
+    boolean direction = ZigZag.ZIGZAG_FORWARD;
+    int x = 0, y = 0, index = 0;
+    for (int zigIndex = 0; zigIndex < (matrix.length * 2 - 1);
+         zigIndex++, direction = !direction)
+      {
+        if (direction == ZigZag.ZIGZAG_FORWARD)
+          {
+            while (x >= 0 && y != matrix.length)
+              {
+                if (x == matrix.length)
+                  {
+                    x--;
+                    y++;
+                  }
+                buffer[index] = matrix[x][y];
+                y++;
+                x--;
+                index++;
+              }
+            x++;
+          }
+        else
+          {
+            while (y >= 0 && x != matrix.length)
+              {
+                if (y == matrix.length)
+                  {
+                    y--;
+                    x++;
+                  }
+                buffer[index] = matrix[x][y];
+                y--;
+                x++;
+                index++;
+              }
+            y++;
+          }
+      }
+    return (buffer);
+  }
+
+  /**
+   * Encodes a matrix of equal width and height to a float array
+   *
+   * @param matrix
+   *
+   * @return
+   */
+  public static short[] encode(short[][] matrix)
+  {
+    short[] buffer = new short[matrix.length * matrix.length];
+    boolean direction = ZigZag.ZIGZAG_FORWARD;
+    int x = 0, y = 0, index = 0;
+    for (int zigIndex = 0; zigIndex < (matrix.length * 2 - 1);
+         zigIndex++, direction = !direction)
+      {
+        if (direction == ZigZag.ZIGZAG_FORWARD)
+          {
+            while (x >= 0 && y != matrix.length)
+              {
+                if (x == matrix.length)
+                  {
+                    x--;
+                    y++;
+                  }
+                buffer[index] = matrix[x][y];
+                y++;
+                x--;
+                index++;
+              }
+            x++;
+          }
+        else
+          {
+            while (y >= 0 && x != matrix.length)
+              {
+                if (y == matrix.length)
+                  {
+                    y--;
+                    x++;
+                  }
+                buffer[index] = matrix[x][y];
+                y--;
+                x++;
+                index++;
+              }
+            y++;
+          }
+      }
+    return (buffer);
+  }
+
+  /**
+   * Convert a double array into a matrix with the same amount of columns and
+   * rows with length sqrt(double array length)
+   *
+   * @param data
+   *
+   * @return
+   */
+  public static double[][] decode(double[] data)
+  {
+    return decode(data, (int) Math.sqrt(data.length),
+                  (int) Math.sqrt(data.length));
+  }
+
+  /**
+   * Convert a byte array into a matrix with the same amount of columns and
+   * rows with length sqrt(double array length)
+   *
+   * @param data
+   *
+   * @return
+   */
+  public static byte[][] decode(byte[] data)
+  {
+    return decode(data, (int) Math.sqrt(data.length),
+                  (int) Math.sqrt(data.length));
+  }
+
+  public static int[][] decode(int[] data)
+  {
+    return decode(data, (int) Math.sqrt(data.length),
+                  (int) Math.sqrt(data.length));
+  }
+
+  public static byte[][] decode(byte[] data, int width, int height)
+  {
+    byte[][] buffer = new byte[height][width];
+
+    for (int v = 0; v < height; v++)
+      for (int z = 0; z < width; z++)
+        buffer[v][z] = 11;
+
+    boolean dir = ZigZag.ZIGZAG_FORWARD;
+    int xindex = 0, yindex = 0, dataindex = 0;
+
+    while (xindex < width && yindex < height && dataindex < data.length)
+      {
+        buffer[yindex][xindex] = data[dataindex];
+        dataindex++;
+
+        if (dir == ZigZag.ZIGZAG_FORWARD)
+          {
+            if (yindex == 0 || xindex == (width - 1))
+              {
+                dir = ZigZag.ZIGZAG_BACKWARD;
+                if (xindex == (width - 1))
+                  yindex++;
+                else
+                  xindex++;
+              }
+            else
+              {
+                yindex--;
+                xindex++;
+              }
+          }
+        else
+          { /* Backwards */
+            if (xindex == 0 || yindex == (height - 1))
+              {
+                dir = ZigZag.ZIGZAG_FORWARD;
+                if (yindex == (height - 1))
+                  xindex++;
+                else
+                  yindex++;
+              }
+            else
+              {
+                yindex++;
+                xindex--;
+              }
+          }
+      }
+    return (buffer);
+  }
+
+  public static double[][] decode(double[] data, int width, int height)
+  {
+    double[][] buffer = new double[height][width];
+
+    for (int v = 0; v < height; v++)
+      for (int z = 0; z < width; z++)
+        buffer[v][z] = 11;
+
+    boolean dir = ZigZag.ZIGZAG_FORWARD;
+    int xindex = 0, yindex = 0, dataindex = 0;
+
+    while (xindex < width && yindex < height && dataindex < data.length)
+      {
+        buffer[yindex][xindex] = data[dataindex];
+        dataindex++;
+        System.err.println("Setting " + dataindex + " to row: " + yindex
+                           + " column: " + xindex + " yourval:"
+                           + (yindex*8+xindex));
+        if (dir == ZigZag.ZIGZAG_FORWARD)
+          {
+            if (yindex == 0 || xindex == (width - 1))
+              {
+                dir = ZigZag.ZIGZAG_BACKWARD;
+                if (xindex == (width - 1))
+                  yindex++;
+                else
+                  xindex++;
+              }
+            else
+              {
+                yindex--;
+                xindex++;
+              }
+          }
+        else
+          { /* Backwards */
+            if (xindex == 0 || yindex == (height - 1))
+              {
+                dir = ZigZag.ZIGZAG_FORWARD;
+                if (yindex == (height - 1))
+                  xindex++;
+                else
+                  yindex++;
+              }
+            else
+              {
+                yindex++;
+                xindex--;
+              }
+          }
+      }
+    return (buffer);
+  }
+
+  public static float[][] decode(float[] data, int width, int height)
+  {
+    float[][] buffer = new float[height][width];
+
+    for (int v = 0; v < height; v++)
+      for (int z = 0; z < width; z++)
+        buffer[v][z] = 11;
+
+    boolean dir = ZigZag.ZIGZAG_FORWARD;
+    int xindex = 0, yindex = 0, dataindex = 0;
+
+    while (xindex < width && yindex < height && dataindex < data.length)
+      {
+        buffer[yindex][xindex] = data[dataindex];
+        dataindex++;
+
+        if (dir == ZigZag.ZIGZAG_FORWARD)
+          {
+            if (yindex == 0 || xindex == (width - 1))
+              {
+                dir = ZigZag.ZIGZAG_BACKWARD;
+                if (xindex == (width - 1))
+                  yindex++;
+                else
+                  xindex++;
+              }
+            else
+              {
+                yindex--;
+                xindex++;
+              }
+          }
+        else
+          { /* Backwards */
+            if (xindex == 0 || yindex == (height - 1))
+              {
+                dir = ZigZag.ZIGZAG_FORWARD;
+                if (yindex == (height - 1))
+                  xindex++;
+                else
+                  yindex++;
+              }
+            else
+              {
+                yindex++;
+                xindex--;
+              }
+          }
+      }
+    return (buffer);
+  }
+
+  public static int[][] decode(int[] data, int width, int height)
+  {
+    int[][] buffer = new int[height][width];
+
+    for (int v = 0; v < height; v++)
+      for (int z = 0; z < width; z++)
+        buffer[v][z] = 11;
+
+    boolean dir = ZigZag.ZIGZAG_FORWARD;
+    int xindex = 0, yindex = 0, dataindex = 0;
+
+    while (xindex < width && yindex < height && dataindex < data.length)
+      {
+        buffer[yindex][xindex] = data[dataindex];
+        dataindex++;
+
+        if (dir == ZigZag.ZIGZAG_FORWARD)
+          {
+            if (yindex == 0 || xindex == (width - 1))
+              {
+                dir = ZigZag.ZIGZAG_BACKWARD;
+                if (xindex == (width - 1))
+                  yindex++;
+                else
+                  xindex++;
+              }
+            else
+              {
+                yindex--;
+                xindex++;
+              }
+          }
+        else
+          { /* Backwards */
+            if (xindex == 0 || yindex == (height - 1))
+              {
+                dir = ZigZag.ZIGZAG_FORWARD;
+                if (yindex == (height - 1))
+                  xindex++;
+                else
+                  yindex++;
+              }
+            else
+              {
+                yindex++;
+                xindex--;
+              }
+          }
+      }
+    return (buffer);
+  }
+
+  public static double[][] decode8x8_map(double input[])
+  {
+    double[][] output = new double[8][8];
+    for(int i=0; i < 64 ; i++)
+      output[ZIGZAG_8X8_MAP[i]/8][ZIGZAG_8X8_MAP[i]%8] = input[i];
+    return (output);
+  }
+
+}
diff --git a/libjava/classpath/gnu/javax/imageio/png/PNGChunk.java b/libjava/classpath/gnu/javax/imageio/png/PNGChunk.java
new file mode 100644
index 000000000..ade0999fe
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/png/PNGChunk.java
@@ -0,0 +1,283 @@
+/* PNGChunk.java -- Generic PNG chunk
+   Copyright (C) 2006 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.png;
+
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.IOException;
+
+/**
+ * Class to load and validate a generic PNG chunk.
+ */
+public class PNGChunk
+{
+
+  /**
+   * CRC table and initialization code.
+   */
+  private static long[] crcTable;
+
+  static
+   {
+     long c;
+     crcTable = new long[256];
+
+     for(int i = 0; i < 256; i++)
+       {
+         c = i;
+         for(int j = 0; j < 8; j++)
+           if( (c & 1) == 1 )
+             c = 0xEDB88320L ^ (c >> 1);
+           else
+             c = c >> 1;
+         crcTable[i] = c;
+       }
+   }
+
+  /**
+   * (recognized) PNG chunk types.
+   */
+  public static final int TYPE_HEADER = 0x49484452; // 'IHDR'
+  public static final int TYPE_PALETTE = 0x504c5445;// 'PLTE'
+  public static final int TYPE_DATA = 0x49444154;   // 'IDAT'
+  public static final int TYPE_TIME = 0x74494d45;   // 'tIME'
+  public static final int TYPE_END = 0x49454e44;    // 'IEND'
+  public static final int TYPE_PHYS = 0x70485973;   // 'pHYS'
+  public static final int TYPE_GAMMA = 0x67414d41;  // 'gAMA'
+  public static final int TYPE_PROFILE = 0x69434350;  // 'iCCP'
+
+  /**
+   * The chunk type - Represented in the file as 4 ASCII bytes,
+   */
+  private int type;
+
+  /**
+   * The chunk data
+   */
+  protected byte[] data;
+
+  /**
+   * The chunk's crc
+   */
+  private int crc;
+
+  /**
+   * Constructor for reading a generic chunk.
+   */
+  protected PNGChunk( int type, byte[] data, int crc )
+  {
+    this.type = type;
+    this.data = data;
+    this.crc = crc;
+  }
+
+  /**
+   * Constructor for creating new chunks.
+   * (only used by subclasses - creating a generic chunk is rather useless)
+   */
+  protected PNGChunk( int type )
+  {
+    this.type = type;
+  }
+
+  /**
+   * Loads a chunk from an InputStream. Does not perform validation,
+   * but will throw an IOException if the read fails.
+   * @param in - th einputstream to read from
+   * @param strict - if true, a PNGException is thrown on all invalid chunks,
+   * if false, only critical chunks will throw PNGExceptions.
+   */
+  public static PNGChunk readChunk(InputStream in, boolean strict)
+    throws IOException, PNGException
+  {
+    byte data[] = new byte[4];
+    if( in.read( data ) != 4 )
+      throw new IOException("Could not read chunk length.");
+    int length = ((data[0] & 0xFF) << 24) | ((data[1] & 0xFF) << 16 ) |
+      ((data[2] & 0xFF) << 8) | (data[3] & 0xFF);
+
+    if( in.read( data ) != 4 )
+      throw new IOException("Could not read chunk type.");
+    int type = ((data[0] & 0xFF) << 24) | ((data[1] & 0xFF) << 16 ) |
+      ((data[2] & 0xFF) << 8) | (data[3] & 0xFF);
+
+    byte[] chkdata = new byte[ length ];
+    if( in.read( chkdata ) != length )
+      throw new IOException("Could not read chunk data.");
+
+    if( in.read( data ) != 4 )
+      throw new IOException("Could not read chunk CRC.");
+
+    int crc = ((data[0] & 0xFF) << 24) | ( (data[1] & 0xFF) << 16 ) |
+      ((data[2] & 0xFF) << 8) | (data[3] & 0xFF);
+
+    if( strict )
+      return getChunk( type, chkdata, crc );
+    else
+      {
+        try
+          {
+            return getChunk( type, chkdata, crc );
+          }
+        catch(PNGException pnge)
+          {
+            if( isEssentialChunk( type ) )
+              throw pnge;
+            return null;
+          }
+      }
+  }
+
+  /**
+   * Returns a specialied object for a chunk, if we have one.
+   */
+  private static PNGChunk getChunk( int type, byte[] data, int crc )
+    throws PNGException
+  {
+    switch( type )
+      {
+      case TYPE_HEADER:
+        return new PNGHeader( type, data, crc );
+      case TYPE_DATA:
+        return new PNGData( type, data, crc );
+      case TYPE_PALETTE:
+        return new PNGPalette( type, data, crc );
+      case TYPE_TIME:
+        return new PNGTime( type, data, crc );
+      case TYPE_PHYS:
+        return new PNGPhys( type, data, crc );
+      case TYPE_GAMMA:
+        return new PNGGamma( type, data, crc );
+      case TYPE_PROFILE:
+        return new PNGICCProfile( type, data, crc );
+      default:
+        return new PNGChunk( type, data, crc );
+      }
+  }
+
+  /**
+   * Returns whether the chunk is essential or not
+   */
+  private static boolean isEssentialChunk( int type )
+  {
+    switch( type )
+      {
+      case TYPE_HEADER:
+      case TYPE_DATA:
+      case TYPE_PALETTE:
+      case TYPE_END:
+        return true;
+      default:
+        return false;
+      }
+  }
+
+  /**
+   * Validates the chunk
+   */
+  public boolean isValidChunk()
+  {
+    return (crc == calcCRC());
+  }
+
+  /**
+   * Returns the chunk type.
+   */
+  public int getType()
+  {
+    return type;
+  }
+
+  /**
+   * Writes a PNG chunk to an output stream,
+   * performing the CRC calculation as well.
+   */
+  public void writeChunk(OutputStream out) throws IOException
+  {
+    out.write( getInt(data.length) );
+    out.write( getInt(type) );
+    out.write( data );
+    out.write( getInt(calcCRC()) );
+  }
+
+  /**
+   * Return whether the chunk contains any data.
+   */
+  public boolean isEmpty()
+  {
+    return ( data.length == 0 );
+  }
+
+  /**
+   * Convenience method. Cast an int to four bytes (big endian).
+   * (Now why doesn't java have a simple way of doing this?)
+   */
+  public static byte[] getInt(int intValue)
+  {
+    long i = (intValue & 0xFFFFFFFFL);
+    byte[] b = new byte[4];
+    b[0] = (byte)((i & 0xFF000000L) >> 24);
+    b[1] = (byte)((i & 0x00FF0000L) >> 16);
+    b[2] = (byte)((i & 0x0000FF00L) >> 8);
+    b[3] = (byte)(i & 0x000000FFL);
+    return b;
+  }
+
+  /**
+   * Calculates this chunk's CRC value.
+   */
+  private int calcCRC()
+  {
+    long c = 0xFFFFFFFFL;
+    byte[] t = getInt( type );
+    for(int i = 0; i < 4; i++)
+      c = crcTable[ (int)((c ^ t[i]) & 0xFF) ] ^ (c >> 8);
+
+    for(int i = 0; i < data.length; i++)
+      c = crcTable[ (int)((c ^ data[i]) & 0xFF) ] ^ (c >> 8);
+
+    return (int)(c ^ 0xFFFFFFFFL);
+  }
+
+  public String toString()
+  {
+    return "PNG Chunk. Type: " + new String( getInt(type) ) + " , CRC: " +
+      crc + " , calculated CRC: "+calcCRC();
+  }
+
+}
diff --git a/libjava/classpath/gnu/javax/imageio/png/PNGData.java b/libjava/classpath/gnu/javax/imageio/png/PNGData.java
new file mode 100644
index 000000000..08d765f66
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/png/PNGData.java
@@ -0,0 +1,104 @@
+/* PNGData.java -- PNG IDAT chunk.
+   Copyright (C) 2006 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.png;
+
+import java.util.zip.Inflater;
+import java.util.zip.Deflater;
+
+/**
+ * A PNG IDAT (data) chunk.
+ */
+public class PNGData extends PNGChunk
+{
+  private int offset;
+
+  protected PNGData( int type, byte[] data, int crc )
+  {
+    super( type, data, crc );
+  }
+
+  protected PNGData( int chunkSize )
+  {
+    super( PNGChunk.TYPE_DATA );
+    data = new byte[ chunkSize ];
+    offset = 0;
+  }
+
+  /**
+   * Deflates the available data in def to the chunk.
+   *
+   * @return true if the chunk is filled and no more data can be written,
+   * false otherwise.
+   */
+  public void deflateToChunk( Deflater def )
+  {
+    offset += def.deflate( data, offset, data.length - offset );
+  }
+
+  /**
+   * Returns true if the chunk is filled.
+   */
+  public boolean chunkFull()
+  {
+    return (offset >= data.length);
+  }
+
+  /**
+   * Shrink the chunk to offset size, used for the last chunk in a stream
+   * (no trailing data!)
+   */
+  public void shrink()
+  {
+    byte[] newData = new byte[ offset ];
+    System.arraycopy( data, 0, newData, 0, offset );
+    data = newData;
+  }
+
+  /**
+   * Feeds the data in the chunk to a ZIP inflater object.
+   */
+  public void feedToInflater( Inflater inf )
+  {
+    inf.setInput( data );
+  }
+
+  public String toString()
+  {
+    return "PNG Data chunk. Length = "+data.length;
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/png/PNGDecoder.java b/libjava/classpath/gnu/javax/imageio/png/PNGDecoder.java
new file mode 100644
index 000000000..4481107c4
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/png/PNGDecoder.java
@@ -0,0 +1,331 @@
+/* PNGDecoder.java
+   Copyright (C) 2006 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.png;
+
+import java.util.zip.Inflater;
+import java.util.zip.DataFormatException;
+import java.awt.image.ColorModel;
+import java.awt.image.ComponentColorModel;
+import java.awt.image.ComponentSampleModel;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferByte;
+import java.awt.image.DataBufferUShort;
+import java.awt.image.IndexColorModel;
+import java.awt.image.MultiPixelPackedSampleModel;
+import java.awt.image.Raster;
+import java.awt.image.SampleModel;
+import java.awt.image.SinglePixelPackedSampleModel;
+import java.awt.image.WritableRaster;
+import java.awt.color.ColorSpace;
+
+public class PNGDecoder
+{
+  private PNGHeader header;
+  private byte[] raster;
+  private byte[] scanline, lastScanline;
+  private byte[] filterType;
+  private int offset, length;
+  private int currentScanline;
+  private final int stride;
+  private Inflater inflater;
+  private boolean readFilter;
+  private int bpp; // bytes per pixel
+
+  /**
+   * Constructs a filter object for
+   */
+  public PNGDecoder(PNGHeader header)
+  {
+    this.header = header;
+    offset = 0;
+    inflater = new Inflater();
+    stride = header.getScanlineStride();
+    length = stride * header.getHeight();
+
+    // Allocate the output raster
+    raster = new byte[ length ];
+    scanline = new byte[ stride ];
+    lastScanline = new byte[ stride ];
+    currentScanline = 0;
+    readFilter = true;
+    bpp = header.bytesPerPixel();
+    filterType = new byte[1];
+    inflater = new Inflater();
+  }
+
+  private int getBytes( byte[] buf, int offset ) throws PNGException
+  {
+    try
+      {
+        return inflater.inflate( buf, offset, buf.length - offset);
+      }
+    catch(DataFormatException dfe)
+      {
+        throw new PNGException("Error inflating data.");
+      }
+  }
+
+  /**
+   * Decodes a data chunk.
+   */
+  public void addData( PNGData chunk ) throws PNGException
+  {
+    int n = 0;
+    if( isFinished() )
+      return;
+    chunk.feedToInflater( inflater );
+    do
+      {
+        if( readFilter )
+          if( getBytes( filterType, 0 ) < 1 )
+            return;
+
+        n = getBytes( scanline, offset );
+
+        if( offset + n < stride )
+          {
+            offset += n;
+            readFilter = false;
+          }
+        else
+          {
+            scanline = PNGFilter.unFilterScanline( filterType[0], scanline,
+                                                   lastScanline, bpp );
+            System.arraycopy( scanline, 0,
+                              raster, currentScanline * stride, stride );
+            lastScanline = scanline;
+            scanline = new byte[scanline.length];
+            currentScanline++;
+            readFilter = true;
+            offset = 0;
+          }
+      }
+    while( n > 0 && currentScanline < header.getHeight() );
+  }
+
+  /**
+   * Parse the appropriate color type and create an AWT raster for it.
+   * @param header - the file header.
+   */
+  public WritableRaster getRaster( PNGHeader header )
+  {
+    SampleModel sm = null;
+    DataBuffer db = null;
+    int t;
+    int width = header.getWidth();
+    int height = header.getHeight();
+    int depth = header.getDepth();
+
+    switch( header.getColorType() )
+      {
+      case PNGHeader.GRAYSCALE_WITH_ALPHA:
+        if( depth == 8 )
+          {
+            t = DataBuffer.TYPE_BYTE;
+            db = getByteBuffer();
+          }
+        else
+          {
+            t = DataBuffer.TYPE_USHORT;
+            db = getShortBuffer();
+          }
+        sm = new ComponentSampleModel(t, width, height, 2, width * 2,
+                                      new int[]{0, 1});
+        break;
+
+      case PNGHeader.GRAYSCALE:
+        switch( depth )
+          {
+          case 16:
+            sm = new ComponentSampleModel(DataBuffer.TYPE_USHORT,
+                                          width, height, 1, width,
+                                          new int[]{ 0 });
+            db = getShortBuffer();
+            break;
+
+          case 8:
+            sm = new ComponentSampleModel(DataBuffer.TYPE_BYTE,
+                                          width, height, 1, width,
+                                          new int[]{ 0 });
+            db = getByteBuffer();
+            break;
+
+          default:
+            sm = new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE,
+                                                 width, height, depth);
+            db = getByteBuffer();
+            break;
+          }
+        break;
+
+      case PNGHeader.RGB:
+        if( depth == 8 )
+          {
+            t = DataBuffer.TYPE_BYTE;
+            db = getByteBuffer();
+          }
+        else
+          {
+            t = DataBuffer.TYPE_USHORT;
+            db = getShortBuffer();
+          }
+        sm = new ComponentSampleModel(t, width, height, 3, 3 * width,
+                                      new int[]{0, 1, 2});
+        break;
+
+      case PNGHeader.RGB_WITH_ALPHA:
+        if( depth == 8 )
+          {
+            t = DataBuffer.TYPE_BYTE;
+            db = getByteBuffer();
+          }
+        else
+          {
+            t = DataBuffer.TYPE_USHORT;
+            db = getShortBuffer();
+          }
+
+        sm = new ComponentSampleModel(t, width, height, 4, width * 4,
+                                      new int[]{0, 1, 2, 3});
+        break;
+
+      case PNGHeader.INDEXED:
+        if( depth == 8 )
+          sm = new SinglePixelPackedSampleModel(DataBuffer.TYPE_BYTE,
+                                                width, height,
+                                                new int[] {0xFF});
+        else
+          sm = new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE,
+                                               width, height, depth);
+        db = getByteBuffer();
+        break;
+      }
+
+    return Raster.createWritableRaster(sm, db, null);
+  }
+
+  /**
+   * Wrap the raster with a DataBufferUShort,
+   * conversion is big-endian (PNG native).
+   */
+  private DataBuffer getShortBuffer()
+  {
+    short[] data = new short[(raster.length >> 1)];
+    for( int i = 0; i < data.length; i++ )
+      data[i] = (short)(((raster[i * 2] & 0xFF) << 8) |
+                        (raster[i * 2 + 1] & 0xFF));
+    return new DataBufferUShort( data, data.length );
+  }
+
+  /**
+   * Wrap the raster with a DataBufferByte
+   */
+  private DataBuffer getByteBuffer()
+  {
+    return new DataBufferByte( raster, raster.length );
+  }
+
+  public ColorModel getColorModel( ColorSpace cs,
+                                   int colorType, int depth )
+  {
+    int[] bits;
+    boolean hasAlpha = false;
+    int transferType;
+
+    switch( colorType )
+      {
+      case PNGHeader.GRAYSCALE_WITH_ALPHA:
+        if( cs == null )
+          cs = ColorSpace.getInstance( ColorSpace.CS_GRAY );
+        hasAlpha = true;
+        bits = new int[]{ depth, depth };
+        break;
+
+      case PNGHeader.RGB:
+        bits = new int[]{ depth, depth, depth };
+        break;
+
+      case PNGHeader.RGB_WITH_ALPHA:
+        hasAlpha = true;
+        bits = new int[]{ depth, depth, depth, depth };
+        break;
+
+      case PNGHeader.GRAYSCALE:
+        if( depth < 8 )
+          return grayPalette( depth );
+
+        if( cs == null )
+          cs = ColorSpace.getInstance( ColorSpace.CS_GRAY );
+        bits = new int[]{ depth };
+        break;
+
+      default:
+      case PNGHeader.INDEXED:
+        return null; // Handled by the palette chunk.
+      }
+
+    if( cs == null )
+      cs = ColorSpace.getInstance( ColorSpace.CS_sRGB );
+
+
+    return new ComponentColorModel(cs, bits, hasAlpha, false,
+                                   (hasAlpha ?
+                                    ComponentColorModel.TRANSLUCENT :
+                                    ComponentColorModel.OPAQUE),
+                                   ((depth == 16) ? DataBuffer.TYPE_USHORT :
+                                    DataBuffer.TYPE_BYTE));
+  }
+
+  private IndexColorModel grayPalette(int depth)
+  {
+    byte[] c = new byte[ (1 << depth) ];
+    for(int i = 0; i < c.length; i++)
+      c[i] = (byte)(255.0 * (((double)i) / ((double)c.length - 1.0)));
+    return new IndexColorModel(8, c.length, c, c, c);
+  }
+
+  public byte[] getRaster()
+  {
+    return raster;
+  }
+
+  public boolean isFinished()
+  {
+    return currentScanline >= header.getHeight();
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/png/PNGEncoder.java b/libjava/classpath/gnu/javax/imageio/png/PNGEncoder.java
new file mode 100644
index 000000000..b31787635
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/png/PNGEncoder.java
@@ -0,0 +1,233 @@
+/* PNGEncoder.java --
+   Copyright (C) 2006 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.png;
+
+import java.util.Vector;
+import java.util.zip.Deflater;
+import java.awt.color.ColorSpace;
+import java.awt.color.ICC_ColorSpace;
+import java.awt.image.BufferedImage;
+import java.awt.image.ColorModel;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferByte;
+import java.awt.image.DataBufferUShort;
+import java.awt.image.IndexColorModel;
+import java.awt.image.WritableRaster;
+
+public class PNGEncoder
+{
+  /**
+   * The default data chunk size. 8 kb.
+   */
+  private static final int defaultChunkSize = 8192;
+
+  private PNGHeader header;
+  private PNGPalette palette;
+  private int stride, bpp;
+  private byte[] rawData;
+  private PNGICCProfile profile;
+
+  public PNGEncoder( BufferedImage bi ) throws PNGException
+  {
+    ColorModel c = bi.getColorModel();
+    int width = bi.getWidth();
+    int height = bi.getHeight();
+    int depth = 0;
+    int colorType;
+    boolean interlace = false;
+
+    if( c instanceof IndexColorModel )
+      {
+        colorType = PNGHeader.INDEXED;
+        int n = ((IndexColorModel)c).getMapSize();
+        if( n <= 2 )
+          depth = 1;
+        else if( n <= 4 )
+          depth = 2;
+        else if( n <= 16 )
+          depth = 4;
+        else if( n <= 256 )
+          depth = 8;
+        else
+          throw new PNGException("Depth must be <= 8 bits for indexed color.");
+        palette = new PNGPalette( ((IndexColorModel)c) );
+      }
+    else
+      {
+        ColorSpace cs = c.getColorSpace();
+        ColorSpace grayCS = ColorSpace.getInstance( ColorSpace.CS_GRAY );
+        if( cs == grayCS || bi.getType() == BufferedImage.TYPE_BYTE_GRAY
+            || bi.getType() == BufferedImage.TYPE_USHORT_GRAY )
+          colorType = c.hasAlpha() ? PNGHeader.GRAYSCALE_WITH_ALPHA :
+            PNGHeader.GRAYSCALE;
+        else
+          colorType = c.hasAlpha() ? PNGHeader.RGB_WITH_ALPHA : PNGHeader.RGB;
+        // Figure out the depth
+        int[] bits = c.getComponentSize();
+        depth = bits[0];
+        for(int i = 1; i < bits.length; i++ )
+          if( bits[i] > depth ) depth = bits[i];
+        if( (cs != grayCS && !cs.isCS_sRGB()) && cs instanceof ICC_ColorSpace )
+          profile = new PNGICCProfile( ((ICC_ColorSpace)cs).getProfile() );
+      }
+
+    header = new PNGHeader(width, height, depth, colorType, interlace);
+
+    stride = header.getScanlineStride(); // scanline stride
+    bpp = header.bytesPerPixel(); // bytes per pixel
+    getRawData( bi );
+  }
+
+  /**
+   * Returns the generated header.
+   */
+  public PNGHeader getHeader()
+  {
+    return header;
+  }
+
+  /**
+   * Returns the generated palette.
+   */
+  public PNGPalette getPalette()
+  {
+    return palette;
+  }
+
+  /**
+   * Returns the associated ICC profile, if any.
+   */
+  public PNGICCProfile getProfile()
+  {
+    return profile;
+  }
+
+  /**
+   * Encodes the raster and returns a Vector of PNGData chunks.
+   */
+  public Vector encodeImage()
+  {
+    Deflater deflater = new Deflater(); // The deflater
+    boolean useFilter = PNGFilter.useFilter( header );
+    byte[] lastScanline = new byte[ stride ];
+
+    byte[] data = new byte[ rawData.length + header.getHeight() ];
+
+    byte filterByte = PNGFilter.FILTER_NONE;
+    for( int i = 0; i < header.getHeight(); i++)
+      {
+        byte[] scanline = new byte[ stride ];
+        System.arraycopy(rawData, (i * stride), scanline, 0, stride);
+        if( useFilter && i > 0)
+          filterByte = PNGFilter.chooseFilter( scanline, lastScanline, bpp);
+
+        byte[] filtered = PNGFilter.filterScanline( filterByte, scanline,
+                                                    lastScanline, bpp );
+        data[i * (stride + 1)] = filterByte;
+        System.arraycopy(filtered, 0, data, 1 + (i * (stride + 1)), stride);
+
+        lastScanline = scanline;
+      }
+
+    deflater.setInput( data );
+    deflater.finish();
+
+    PNGData chunk;
+    Vector chunks = new Vector();
+    do
+      {
+        chunk = new PNGData( defaultChunkSize );
+        chunk.deflateToChunk( deflater );
+        chunks.add( chunk );
+      }
+    while( chunk.chunkFull() );
+    chunk.shrink(); // Shrink the last chunk.
+    return chunks;
+  }
+
+  /**
+   * Get the image's raw data.
+   * FIXME: This may need improving on.
+   */
+  private void getRawData( BufferedImage bi ) throws PNGException
+  {
+    WritableRaster raster = bi.getRaster();
+    rawData = new byte[ stride * header.getHeight() ];
+    if( header.isIndexed() )
+      {
+        DataBuffer db = raster.getDataBuffer();
+        if( !( db instanceof DataBufferByte ) )
+          throw new PNGException("Unexpected DataBuffer for an IndexColorModel.");
+        byte[] data = ((DataBufferByte)db).getData();
+        for(int i = 0; i < header.getHeight(); i++ )
+          System.arraycopy( data, i * stride, rawData, i * stride, stride );
+        return;
+      }
+
+    if( header.getDepth() == 16 )
+      {
+        DataBuffer db = raster.getDataBuffer();
+        if( !( db instanceof DataBufferUShort ) )
+          throw new PNGException("Unexpected DataBuffer for 16-bit.");
+        short[] data = ((DataBufferUShort)db).getData();
+        for(int i = 0; i < header.getHeight(); i++ )
+          for(int j = 0; j < ( stride >> 1); j++)
+            {
+              rawData[ j * 2 + i * stride ] = (byte)((data[j + i * (stride >> 1 )] & 0xFF00) >> 8);
+              rawData[ j * 2 + i * stride + 1 ] = (byte)(data[j + i * (stride >> 1 )] & 0xFF);
+            }
+        return;
+      }
+
+    int size = ( header.getColorType() == PNGHeader.RGB_WITH_ALPHA ) ? 4 : 3;
+    int width = header.getWidth();
+    int height = header.getHeight();
+    int[] pixels = bi.getRGB( 0, 0, width, height, null, 0, width );
+
+    for( int i = 0; i < width * height; i++ )
+      {
+        rawData[ i * size ] = (byte)((pixels[i] & 0xFF0000) >> 16);
+        rawData[ i * size + 1 ] = (byte)((pixels[i] & 0xFF00) >> 8);
+        rawData[ i * size + 2 ] = (byte)(pixels[i] & 0xFF);
+      }
+
+    if( size == 4 )
+      for( int i = 0; i < width * height; i++ )
+        rawData[ i * size + 3 ] = (byte)((pixels[i] & 0xFF000000) >> 24);
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/png/PNGException.java b/libjava/classpath/gnu/javax/imageio/png/PNGException.java
new file mode 100644
index 000000000..ef5342cf8
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/png/PNGException.java
@@ -0,0 +1,48 @@
+/* PNGException.java --
+   Copyright (C) 2006 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.png;
+
+import java.io.IOException;
+
+public class PNGException extends IOException
+{
+  public PNGException(String msg)
+  {
+    super( msg );
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/png/PNGFile.java b/libjava/classpath/gnu/javax/imageio/png/PNGFile.java
new file mode 100644
index 000000000..76154cc66
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/png/PNGFile.java
@@ -0,0 +1,257 @@
+/* PNGFile.java -- High-level representation of a PNG file.
+   Copyright (C) 2006 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.png;
+
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.IOException;
+import java.util.Vector;
+import java.awt.image.BufferedImage;
+import java.awt.image.WritableRaster;
+import java.awt.image.ColorModel;
+import java.awt.color.ColorSpace;
+
+public class PNGFile
+{
+  /**
+   * The PNG file signature.
+   */
+  private static final byte[] signature = new byte[]
+  { (byte)137, 80, 78, 71, 13, 10, 26, 10 };
+
+  /**
+   * The end chunk in raw form, no need for anything fancy here, it's just
+   * 0 bytes of length, the "IEND" tag and its CRC.
+   */
+  private static final byte[] endChunk = new byte[]
+  { 0, 0, 0, 0, (byte)0x49, (byte)0x45, (byte)0x4E, (byte)0x44,
+    (byte)0xAE, (byte)0x42, (byte)0x60, (byte)0x82 };
+
+  /**
+   * The loaded data.
+   */
+  private Vector chunks;
+
+  /**
+   * The Header chunk
+   */
+  private PNGHeader header;
+
+  /**
+   * Whether this file has a palette chunk or not.
+   */
+  private boolean hasPalette;
+
+  /**
+   * Image width and height.
+   */
+  private int width, height;
+
+  /**
+   * The decoder, if any.
+   */
+  private PNGDecoder decoder;
+
+  /**
+   * The encoder, if any. (Either this or the above must exist).
+   */
+  private PNGEncoder encoder;
+
+  /**
+   * The source of this PNG (if encoding)
+   */
+  private BufferedImage sourceImage;
+
+  /**
+   * Creates a PNGFile object from an InputStream.
+   */
+  public PNGFile(InputStream in) throws IOException, PNGException
+  {
+    PNGChunk chunk;
+    byte[] fileHdr = new byte[8];
+    chunks = new Vector();
+    hasPalette = false;
+
+    if( in.read( fileHdr ) != 8 )
+      throw new IOException("Could not read file header.");
+    if( !validateHeader( fileHdr ) )
+      throw new PNGException("Invalid file header. Not a PNG file.");
+
+    chunk = PNGChunk.readChunk( in, false );
+    if( !(chunk instanceof PNGHeader) )
+      throw new PNGException("First chunk not a header chunk.");
+    header = (PNGHeader)chunk;
+    if( !header.isValidChunk() )
+      throw new PNGException("First chunk not a valid header.");
+    System.out.println(header);
+
+    decoder = new PNGDecoder( header );
+    // Read chunks.
+    do
+      {
+        chunk = PNGChunk.readChunk( in, false );
+        /*
+         * We could exit here or output some kind of warning.
+         * But in the meantime, we'll just silently drop invalid chunks.
+         */
+        if( chunk.isValidChunk() )
+          {
+            if( chunk instanceof PNGData )
+              decoder.addData( (PNGData)chunk );
+            else // Silently ignore multiple headers, and use only the first.
+              if( chunk.getType() != PNGChunk.TYPE_END )
+                {
+                  chunks.add( chunk );
+                  hasPalette |= ( chunk instanceof PNGPalette );
+                }
+          }
+        else
+          System.out.println("WARNING: Invalid chunk!");
+      }
+    while( chunk.getType() != PNGChunk.TYPE_END );
+
+    if( header.isIndexed() && !hasPalette )
+      throw new PNGException("File is indexed color and has no palette.");
+
+    width = header.getWidth();
+    height = header.getHeight();
+  }
+
+  /**
+   * Creates a PNG file from an existing BufferedImage.
+   */
+  public PNGFile(BufferedImage bi) throws PNGException
+  {
+    sourceImage = bi;
+    width = bi.getWidth();
+    height = bi.getHeight();
+    chunks = new Vector();
+    encoder = new PNGEncoder( bi );
+    header = encoder.getHeader();
+    if( header.isIndexed() )
+      chunks.add( encoder.getPalette() );
+
+    // Do the compression and put the data chunks in the list.
+    chunks.addAll( encoder.encodeImage() );
+  }
+
+  /**
+   * Writes a PNG file to an OutputStream
+   */
+  public void writePNG(OutputStream out) throws IOException
+  {
+    out.write( signature ); // write the signature.
+    header.writeChunk( out );
+    for( int i = 0; i < chunks.size(); i++ )
+      {
+        PNGChunk chunk = ((PNGChunk)chunks.elementAt(i));
+        chunk.writeChunk( out );
+      }
+    out.write( endChunk );
+  }
+
+  /**
+   * Check 8 bytes to see if it's a valid PNG header.
+   */
+  private boolean validateHeader( byte[] hdr )
+  {
+    if( hdr.length != 8 )
+      return false;
+    for( int i = 0; i < 8; i++ )
+      if( signature[i] != hdr[i] )
+        return false;
+    return true;
+  }
+
+  /**
+   * Return a loaded image as a bufferedimage.
+   */
+  public BufferedImage getBufferedImage()
+  {
+    if( decoder == null )
+      return sourceImage;
+
+    WritableRaster r = decoder.getRaster( header );
+    ColorModel cm;
+    if( header.isIndexed() )
+      {
+        PNGPalette pngp = getPalette();
+        cm = pngp.getPalette( getColorSpace() );
+      }
+    else
+      cm = decoder.getColorModel( getColorSpace(),
+                                  header.getColorType(),
+                                  header.getDepth() );
+
+    return new BufferedImage(cm, r, false, null);
+  }
+
+  /**
+   * Find the palette chunk and return it
+   */
+  private PNGPalette getPalette()
+  {
+    for(int i = 0; i < chunks.size(); i++ )
+      if( chunks.elementAt(i) instanceof PNGPalette )
+        return ((PNGPalette)chunks.elementAt(i));
+    return null;
+  }
+
+  /**
+   * Return the Color space to use, first preference is ICC profile, then
+   * a gamma chunk, or returns null for the default sRGB.
+   */
+  private ColorSpace getColorSpace()
+  {
+    PNGICCProfile icc = null;
+    PNGGamma gamma = null;
+    for(int i = 0; i < chunks.size(); i++ )
+      {
+        if( chunks.elementAt(i) instanceof PNGICCProfile )
+          icc = ((PNGICCProfile)chunks.elementAt(i));
+        else if(chunks.elementAt(i) instanceof PNGGamma )
+          gamma = ((PNGGamma)chunks.elementAt(i));
+      }
+
+    if( icc != null )
+      return icc.getColorSpace();
+//     if( gamma != null && !header.isGrayscale())
+//       return gamma.getColorSpace( header.isGrayscale() );
+    return null;
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/png/PNGFilter.java b/libjava/classpath/gnu/javax/imageio/png/PNGFilter.java
new file mode 100644
index 000000000..9be7b9127
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/png/PNGFilter.java
@@ -0,0 +1,237 @@
+/* PNGFilter.java -- PNG image filters.
+   Copyright (C) 2006 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.png;
+
+/**
+ * A utility class of static methods implementing the PNG filtering algorithms.
+ */
+public class PNGFilter
+{
+
+  public static final byte FILTER_NONE = 0;
+  public static final byte FILTER_SUB = 1;
+  public static final byte FILTER_UP = 2;
+  public static final byte FILTER_AVERAGE = 3;
+  public static final byte FILTER_PAETH = 4;
+
+  /**
+   * Return whether a filter should be used or FILTER_NONE,
+   * following the recommendations in the PNG spec.
+   */
+  public static boolean useFilter( PNGHeader header )
+  {
+    switch( header.getColorType() )
+      {
+      case PNGHeader.INDEXED:
+        return false;
+
+      case PNGHeader.GRAYSCALE:
+      case PNGHeader.RGB:
+        if( header.bytesPerPixel() <= 1 )
+          return false;
+      case PNGHeader.GRAYSCALE_WITH_ALPHA:
+      case PNGHeader.RGB_WITH_ALPHA:
+      default:
+        return true;
+      }
+  }
+
+  /**
+   * Heuristic for adaptively choosing a filter, following the scheme
+   * suggested in the PNG spec.
+   * @return a fiter type.
+   */
+  public static byte chooseFilter( byte[] scanline, byte[] lastScanline,
+                                  int bpp)
+
+  {
+    long[] values = new long[5];
+    int idx = 0;
+    for( int i = 0; i < 5; i++ )
+      {
+        byte[] filtered = filterScanline((byte)i, scanline, lastScanline, bpp);
+        values[i] = 0;
+        for(int j = 0; j < filtered.length; j++ )
+          values[i] += (int)(filtered[j] & 0xFF);
+        if( values[ idx ] > values[i] )
+          idx = i;
+      }
+    return (byte)idx;
+  }
+
+  /**
+   * Filter a scanline.
+   */
+  public static byte[] filterScanline( byte filtertype, byte[] scanline,
+                                       byte[] lastScanline, int bpp)
+  {
+    int stride = scanline.length;
+    byte[] out = new byte[ stride ];
+    switch( filtertype )
+      {
+      case FILTER_SUB:
+        for( int i = 0; i < bpp; i++)
+          out[ i ] = scanline[ i ];
+
+        for( int i = bpp; i < stride; i++ )
+          out[i] = (byte)(scanline[ i ] -
+                          scanline[ i - bpp ]);
+        break;
+
+      case FILTER_UP:
+        for( int i = 0; i < stride; i++ )
+          out[ i ] = (byte)(scanline[ i ] - lastScanline[ i ]);
+        break;
+
+      case FILTER_AVERAGE:
+        for( int i = 0; i < bpp; i++)
+          out[ i ] = (byte)((scanline[ i ] & 0xFF) - ((lastScanline[ i ] & 0xFF) >> 1));
+        for( int i = bpp; i < stride; i++ )
+          out[ i ] = (byte)((scanline[ i ] & 0xFF) -
+                            (((scanline[ i - bpp ] & 0xFF) +
+                              (lastScanline[ i ] & 0xFF)) >> 1));
+        break;
+
+      case FILTER_PAETH:
+        for( int i = 0; i < stride; i++ )
+          {
+            int x;
+            {
+              int a, b, c;
+              if( i >= bpp )
+                {
+                  a = (scanline[ i - bpp ] & 0xFF); // left
+                  c = (lastScanline[ i - bpp ] & 0xFF); // upper-left
+                }
+              else
+                a = c = 0;
+              b = (lastScanline[ i ] & 0xFF); // up
+
+              int p = (a + b - c);        // initial estimate
+              // distances to a, b, c
+              int pa = (p > a) ? p - a : a - p;
+              int pb = (p > b) ? p - b : b - p;
+              int pc = (p > c) ? p - c : c - p;
+              // return nearest of a,b,c,
+              // breaking ties in order a,b,c.
+              if( pa <= pb && pa <= pc ) x = a;
+              else { if( pb <= pc ) x = b;
+                else x = c;
+              }
+            }
+            out[ i ] = (byte)(scanline[ i ] - x);
+          }
+        break;
+      default:
+      case FILTER_NONE:
+        return scanline;
+      }
+    return out;
+  }
+
+  /**
+   * Unfilter a scanline.
+   */
+  public static byte[] unFilterScanline( int filtertype, byte[] scanline,
+                                         byte[] lastScanline, int bpp)
+  {
+    int stride = scanline.length;
+    byte[] out = new byte[ stride ];
+    switch( filtertype )
+      {
+
+      case FILTER_NONE:
+        System.arraycopy( scanline, 0, out, 0, stride );
+        break;
+
+      case FILTER_SUB:
+        for( int i = 0; i < bpp; i++)
+          out[ i ] = scanline[ i ];
+
+        for( int i = bpp; i < stride; i++ )
+          out[ i ] = (byte)(scanline[ i ] +
+                            out[ i - bpp ]);
+        break;
+
+      case FILTER_UP:
+        for( int i = 0; i < stride; i++ )
+          out[ i ] = (byte)(scanline[ i ] + lastScanline[ i ]);
+        break;
+
+      case FILTER_AVERAGE:
+        for( int i = 0; i < bpp; i++)
+          out[ i ] = (byte)((scanline[ i ] & 0xFF) + ((lastScanline[ i ] & 0xFF) >> 1));
+        for( int i = bpp; i < stride; i++ )
+          out[ i ] = (byte)((scanline[ i ] & 0xFF) +
+                            (((out[ i - bpp ] & 0xFF) + (lastScanline[ i ] & 0xFF)) >> 1));
+        break;
+
+      case FILTER_PAETH:
+        for( int i = 0; i < stride; i++ )
+          {
+            int x;
+            {
+              int a, b, c;
+              if( i >= bpp )
+                {
+                  a = (out[ i - bpp ] & 0xFF); // left
+                  c = (lastScanline[ i - bpp ] & 0xFF); // upper-left
+                }
+              else
+                a = c = 0;
+              b = (lastScanline[ i ] & 0xFF); // up
+
+              int p = (a + b - c);        // initial estimate
+              // distances to a, b, c
+              int pa = (p > a) ? p - a : a - p;
+              int pb = (p > b) ? p - b : b - p;
+              int pc = (p > c) ? p - c : c - p;
+              // return nearest of a,b,c,
+              // breaking ties in order a,b,c.
+              if( pa <= pb && pa <= pc ) x = a;
+              else { if( pb <= pc ) x = b;
+                else x = c;
+              }
+            }
+            out[ i ] = (byte)(scanline[ i ] + x);
+          }
+        break;
+      }
+    return out;
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/png/PNGGamma.java b/libjava/classpath/gnu/javax/imageio/png/PNGGamma.java
new file mode 100644
index 000000000..b9c3f21c3
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/png/PNGGamma.java
@@ -0,0 +1,85 @@
+/* PNGGamma.java -- GAMA chunk.
+   Copyright (C) 2006 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.png;
+
+import java.awt.color.ColorSpace;
+
+/**
+ * A PNG gAMA (gamma) chunk.
+ */
+public class PNGGamma extends PNGChunk
+{
+  private double gamma;
+
+  protected PNGGamma( int type, byte[] data, int crc ) throws PNGException
+  {
+    super( type, data, crc );
+    if( data.length < 4 )
+      throw new PNGException("Unexpectedly short time chunk. ("+data.length+" bytes)");
+    long g = ((data[0] & 0xFF) << 24) | ( (data[1] & 0xFF) << 16 ) |
+      ((data[2] & 0xFF) << 8) | (data[3] & 0xFF);
+    gamma = (double)g;
+    gamma = 100000.0/gamma;
+  }
+
+  public PNGGamma( double g )
+  {
+    super( TYPE_GAMMA );
+    data = new byte[ 4 ];
+    gamma = g;
+    long tmp = (long)(100000.0/gamma);
+    data[0] = (byte)((tmp & 0xFF000000) >> 24);
+    data[1] = (byte)((tmp & 0xFF0000) >> 16);
+    data[2] = (byte)((tmp & 0xFF00) >> 8);
+    data[3] = (byte)(tmp & 0xFF);
+  }
+
+  /**
+   * Returns a ColorSpace object corresponding to this gamma value.
+   */
+  public ColorSpace getColorSpace(boolean grayscale)
+  {
+    // FIXME.
+    return null;
+  }
+
+  public String toString()
+  {
+    return "PNG Gamma chunk, value: "+gamma;
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/png/PNGHeader.java b/libjava/classpath/gnu/javax/imageio/png/PNGHeader.java
new file mode 100644
index 000000000..115e50311
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/png/PNGHeader.java
@@ -0,0 +1,257 @@
+/* PNGHeader.java -- PNG Header
+   Copyright (C) 2006 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.png;
+
+/**
+ * A PNG Header chunk.
+ */
+public class PNGHeader extends PNGChunk
+{
+  private int width, height, depth;
+  private int colorType, compression, filter, interlace;
+
+  /**
+   * The valid interlace types.
+   */
+  public static final int INTERLACE_NONE = 0;
+  public static final int INTERLACE_ADAM7 = 1;
+
+  /**
+   * The valid color types.
+   */
+  public static final int GRAYSCALE = 0;
+  public static final int RGB = 2;
+  public static final int INDEXED = 3;
+  public static final int GRAYSCALE_WITH_ALPHA = 4;
+  public static final int RGB_WITH_ALPHA = 6;
+
+  /**
+   * Parses a PNG Header chunk.
+   */
+  protected PNGHeader( int type, byte[] data, int crc ) throws PNGException
+  {
+    super( type, data, crc );
+    if( data.length < 13 )
+      throw new PNGException("Unexpectedly short header chunk. (" + data.length
+                             + " bytes)");
+
+    width = ((data[0] & 0xFF) << 24) | ( (data[1] & 0xFF) << 16 ) |
+      ((data[2] & 0xFF) << 8) | (data[3] & 0xFF);
+    height = ((data[4] & 0xFF) << 24) | ( (data[5] & 0xFF) << 16 ) |
+      ((data[6] & 0xFF) << 8) | (data[7] & 0xFF);
+    depth = (data[8] & 0xFF);
+    colorType = (data[9] & 0xFF);
+    compression = (data[10] & 0xFF);
+    filter = (data[11] & 0xFF);
+    interlace = (data[12] & 0xFF);
+  }
+
+  /**
+   * Create a PNG header chunk.
+   * Warning: This trusts that the parameters are valid.
+   */
+  public PNGHeader(int width, int height, int depth,
+                   int colorType, boolean interlace)
+  {
+    super( TYPE_HEADER );
+    data = new byte[ 13 ];
+
+    this.width = width;
+    this.height = height;
+    this.depth = depth;
+    compression = filter = 0;
+    this.colorType = colorType;
+    this.interlace = interlace ? 1 : 0;
+
+    // Build the data chunk.
+    byte[] a = getInt( width );
+    byte[] b = getInt( height );
+    data[0] = a[0]; data[1] = a[1]; data[2] = a[2]; data[3] = a[3];
+    data[4] = b[0]; data[5] = b[1]; data[6] = b[2]; data[7] = b[3];
+    data[8] = (byte)depth;
+    data[9] = (byte)colorType;
+    data[10] = (byte)compression;
+    data[11] = (byte)filter;
+    data[12] = (byte)this.interlace;
+  }
+
+  /**
+   * Validates the header fields
+   */
+  public boolean isValidChunk()
+  {
+    if( !super.isValidChunk() )
+      return false;
+
+    // width and height must be nonzero
+    if( width == 0 || height == 0 )
+      return false;
+    // colorType can be 0,2,3,4,6
+    if( (colorType & 0xFFFFFFF8) != 0 || colorType == 5 || colorType == 1)
+      return false;
+    // Possible valid depths are 1,2,4,8,16
+    if( !((depth == 1) || (depth == 2) || (depth == 4) ||
+        (depth == 8) || (depth == 16)) )
+      return false;
+    if( colorType == INDEXED && depth == 16 )
+      return false;
+    if( ( colorType == RGB || colorType == GRAYSCALE_WITH_ALPHA ||
+          colorType == RGB_WITH_ALPHA ) &&
+        depth < 8 )
+      return false;
+    // Only compression and filter methods zero are defined
+    if( compression != 0 || filter != 0 )
+      return false;
+    // Interlace methods, 0 and 1 are valid values.
+    if( (interlace & 0xFFFFFFFE) != 0 )
+      return false;
+
+    return true;
+  }
+
+  /**
+   * Returns <code>true</code> if this PNG is indexed-color
+   */
+  public boolean isIndexed()
+  {
+    return (colorType == INDEXED);
+  }
+
+  /**
+   * Returns <code>true</code> if this PNG is grayscale
+   */
+  public boolean isGrayscale()
+  {
+    return ((colorType ==  GRAYSCALE) || (colorType == GRAYSCALE_WITH_ALPHA));
+  }
+
+  /**
+   * Returns the color type of the image.
+   */
+  public int getColorType()
+  {
+    return colorType;
+  }
+
+  /**
+   * Returns whether the image is interlaced or not.
+   */
+  public boolean isInterlaced()
+  {
+    return (interlace != 0);
+  }
+
+  /**
+   * Returns the number of bytes per pixel.
+   */
+  public int bytesPerPixel()
+  {
+    switch( colorType )
+      {
+      case GRAYSCALE_WITH_ALPHA:
+        return ((depth * 2) >> 3);
+      case RGB:
+        return ((depth * 3) >> 3);
+      case RGB_WITH_ALPHA:
+        return ((depth * 4) >> 3);
+
+      default:
+      case GRAYSCALE:
+      case INDEXED:
+        int i = (depth >> 3);
+        if( i > 0 ) return i;
+        return 1; // if bytes per pixel < 1, return 1 anyway.
+      }
+  }
+
+  /**
+   * Returns the stride of one scanline, in bytes.
+   */
+  public int getScanlineStride()
+  {
+    long nBits = 0; // bits per scanline - scanlines are on byte offsets.
+    switch( colorType )
+      {
+      case GRAYSCALE:
+        nBits = width * depth;
+        break;
+      case RGB:
+        nBits = width * depth * 3;
+        break;
+      case INDEXED:
+        nBits = depth * width;
+        break;
+      case GRAYSCALE_WITH_ALPHA:
+        nBits = depth * width * 2;
+        break;
+      case RGB_WITH_ALPHA:
+        nBits = depth * width * 4;
+        break;
+      }
+    // Round up number of bits to the nearest byte
+    if( (nBits & 0x07) != 0 )
+      nBits += (8 - (nBits & 0x07));
+
+    return (int)(nBits >> 3); // return # of bytes.
+  }
+
+  public int getWidth()
+  {
+    return width;
+  }
+
+  public int getHeight()
+  {
+    return height;
+  }
+
+  public int getDepth()
+  {
+    return depth;
+  }
+
+  /**
+   * Debugging string.
+   */
+  public String toString()
+  {
+    return "Header Chunk. Image width:"+width+" height:"+height+
+      " depth:"+depth+" color type:"+colorType+" compression type:"+
+      compression+" filter type:"+ filter+" interlace:"+interlace;
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/png/PNGICCProfile.java b/libjava/classpath/gnu/javax/imageio/png/PNGICCProfile.java
new file mode 100644
index 000000000..9ecea7166
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/png/PNGICCProfile.java
@@ -0,0 +1,116 @@
+/* PNGICCProfile.java --
+   Copyright (C) 2006 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.png;
+
+import java.awt.color.ICC_Profile;
+import java.awt.color.ICC_ColorSpace;
+import java.awt.color.ColorSpace;
+import java.io.UnsupportedEncodingException;
+import java.io.IOException;
+import java.io.ByteArrayInputStream;
+import java.util.zip.InflaterInputStream;
+import java.util.zip.Deflater;
+
+/**
+ * A PNG iCCP (ICC Profile) chunk.
+ */
+public class PNGICCProfile extends PNGChunk
+{
+  private String name;
+  private ICC_Profile profile;
+  // A generic profile name to use "ICC Profile"
+  private static final byte[] genericName = new byte[]
+  { 0x49, 0x43, 0x43, 0x20, 0x50, 0x72, 0x6f, 0x66, 0x69, 0x6c, 0x65 };
+
+  protected PNGICCProfile( int type, byte[] data, int crc ) throws PNGException
+  {
+    super( type, data, crc );
+    int i = 0;
+    while( data[i++] != 0 )
+      ;
+
+    try
+      {
+        name = new String(data, 0, i, "8859_1");
+      }
+    catch(UnsupportedEncodingException e)
+      {
+        name = ""; // shouldn't really happen.
+      }
+    if( data[i++] != 0 )
+      throw new PNGException("Can't handle nonzero compression types with iCCP chunks.");
+    try
+      {
+        ByteArrayInputStream bos = new ByteArrayInputStream( data, i,
+                                                             data.length - i );
+        profile = ICC_Profile.getInstance( new InflaterInputStream( bos ) );
+      }
+    catch(IOException ioe)
+      {
+        throw new PNGException("Couldn't read iCCP profile chunk.");
+      }
+    System.out.println("Got profile:"+profile);
+  }
+
+  public PNGICCProfile( ICC_Profile profile )
+  {
+    super( TYPE_PROFILE );
+    this.profile = profile;
+    byte[] profData = profile.getData();
+    byte[] outData = new byte[ profData.length * 2 ];
+    Deflater deflater = new Deflater();
+    deflater.setInput( profData );
+    deflater.finish();
+    int n = deflater.deflate( outData );
+    data = new byte[ n + 11 + 2 ];
+    System.arraycopy(genericName, 0, data, 0, 11 );
+    data[11] = data[12] = 0; // null separator and compression type.
+    // Copy compressed data
+    System.arraycopy(outData, 0, data, 13, n );
+  }
+
+  public ColorSpace getColorSpace()
+  {
+    return new ICC_ColorSpace( profile );
+  }
+
+  public String toString()
+  {
+    return "PNG ICC Profile, name: "+name;
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/png/PNGImageReader.java b/libjava/classpath/gnu/javax/imageio/png/PNGImageReader.java
new file mode 100644
index 000000000..3209baa26
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/png/PNGImageReader.java
@@ -0,0 +1,224 @@
+/* PNGImageReader.java -- The ImageIO ImageReader for PNG
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.png;
+
+import gnu.javax.imageio.IIOInputStream;
+
+import java.awt.image.BufferedImage;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.Iterator;
+
+import javax.imageio.ImageReadParam;
+import javax.imageio.ImageReader;
+import javax.imageio.ImageTypeSpecifier;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageInputStream;
+
+/**
+ * The ImageIO ImageReader for PNG images.
+ *
+ * @author Roman Kennke (kennke@aicas.com)
+ */
+public class PNGImageReader
+  extends ImageReader
+{
+
+  /**
+   * The PNG file.
+   */
+  private PNGFile pngFile;
+
+  /**
+   * The decoded image.
+   */
+  private BufferedImage image;
+
+  /**
+   * The supported image types for PNG.
+   */
+  private ArrayList imageTypes;
+
+  /**
+   * Creates a new instance.
+   *
+   * @param spi the corresponding ImageReaderSpi
+   */
+  public PNGImageReader(PNGImageReaderSpi spi)
+  {
+    super(spi);
+  }
+
+  /**
+   * Returns the height of the image.
+   */
+  public int getHeight(int imageIndex)
+    throws IOException
+  {
+    checkIndex(imageIndex);
+    readImage();
+    return image.getHeight();
+  }
+
+  /**
+   * Returns the width of the image.
+   *
+   * @param imageIndex the index of the image
+   *
+   * @return the width of the image
+   */
+  public int getWidth(int imageIndex) throws IOException
+  {
+    checkIndex(imageIndex);
+    readImage();
+    return image.getWidth();
+  }
+
+  /**
+   * Returns the image types for the image.
+   *
+   * @see ImageReader#getImageTypes(int)
+   */
+  public Iterator getImageTypes(int imageIndex)
+    throws IOException
+  {
+    checkIndex(imageIndex);
+    readImage();
+    if (imageTypes == null)
+      {
+        imageTypes = new ArrayList();
+        imageTypes.add(new ImageTypeSpecifier(image.getColorModel(),
+                                              image.getSampleModel()));
+      }
+    return imageTypes.iterator();
+  }
+
+  /**
+   * Returns the number of images in the stream.
+   *
+   * @return the number of images in the stream
+   *
+   * @see ImageReader#getNumImages(boolean)
+   */
+  public int getNumImages(boolean allowSearch)
+    throws IOException
+  {
+    return 1;
+  }
+
+  /**
+   * Reads the image.
+   *
+   * @param imageIndex the index of the image to read
+   * @param param additional parameters
+   */
+  public BufferedImage read(int imageIndex, ImageReadParam param)
+    throws IOException
+  {
+    checkIndex(imageIndex);
+    readImage();
+    return image;
+  }
+
+  /**
+   * Sets the input and checks the input parameter.
+   *
+   * @see ImageReader#setInput(Object, boolean, boolean)
+   */
+  public void setInput(Object input,
+                       boolean seekForwardOnly,
+                       boolean ignoreMetadata)
+  {
+    super.setInput(input, seekForwardOnly, ignoreMetadata);
+    if (! (input instanceof InputStream || input instanceof ImageInputStream))
+      throw new IllegalArgumentException("Input not an ImageInputStream");
+  }
+
+  public IIOMetadata getImageMetadata(int imageIndex)
+    throws IOException
+  {
+    // TODO: Not (yet) supported.
+    checkIndex(imageIndex);
+    return null;
+  }
+
+  public IIOMetadata getStreamMetadata()
+    throws IOException
+  {
+    // TODO: Not (yet) supported.
+    return null;
+  }
+
+  /**
+   * Checks the image indexa and throws and IndexOutOfBoundsException if
+   * appropriate.
+   *
+   * @param index the index to check
+   */
+  private void checkIndex(int index)
+  {
+    if (index > 0)
+      throw new IndexOutOfBoundsException("Image index out of bounds");
+  }
+
+  /**
+   * Makes sure that the image is read.
+   *
+   * @throws IOException if something goes wrong
+   */
+  private void readImage()
+    throws IOException
+  {
+    if (pngFile == null)
+      {
+        if (input instanceof InputStream)
+          pngFile = new PNGFile((InputStream) input);
+        else if (input instanceof ImageInputStream)
+          pngFile = new PNGFile(new IIOInputStream((ImageInputStream) input));
+        else
+          assert false : "Must not happen";
+      }
+
+    if (pngFile != null && image == null)
+      {
+        image = pngFile.getBufferedImage();
+      }
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/png/PNGImageReaderSpi.java b/libjava/classpath/gnu/javax/imageio/png/PNGImageReaderSpi.java
new file mode 100644
index 000000000..0092ab558
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/png/PNGImageReaderSpi.java
@@ -0,0 +1,128 @@
+/* PNGImageReaderSpi.java -- The ImageReader service provider for PNG
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.png;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Locale;
+
+import javax.imageio.ImageReader;
+import javax.imageio.spi.ImageReaderSpi;
+import javax.imageio.stream.ImageInputStream;
+
+/**
+ * The ImageIO ImageReader service provider for PNG images.
+ *
+ * @author Roman Kennke (kennke@aicas.com)
+ */
+public class PNGImageReaderSpi
+  extends ImageReaderSpi
+{
+
+  /**
+   * The PNG file signature.
+   */
+  private static final byte[] SIGNATURE = new byte[]
+                              { (byte) 137, 80, 78, 71, 13, 10, 26, 10 };
+
+  private static final String VENDOR_NAME = "GNU";
+  static final String VERSION = "1.0";
+  static final String READER_CLASSNAME =
+                                       "gnu.javax.imageio.png.PNGImageReader";
+  static final String[] NAMES = { "Portable Network Graphics" };
+  static final String[] SUFFIXES = { ".png" , ".PNG" };
+  static final String[] MIME_TYPES = { "image/png" };
+  static final String[] WRITER_SPI_NAMES =
+    new String[] { "gnu.javax.imageio.png.PNGWriterSpi" };
+  static final Class[] INPUT_TYPES = new Class[]{ InputStream.class,
+                                                  ImageInputStream.class};
+  public PNGImageReaderSpi()
+  {
+    super(VENDOR_NAME, VERSION, NAMES, SUFFIXES, MIME_TYPES, READER_CLASSNAME,
+          INPUT_TYPES, WRITER_SPI_NAMES, false, null, null, null, null, false,
+          null, null, null, null);
+  }
+
+  /**
+   * Determines if the PNG ImageReader can decode the specified input.
+   *
+   * @param source the source to decode
+   */
+  public boolean canDecodeInput(Object source) throws IOException
+  {
+    boolean canDecode = false;
+    if (source instanceof ImageInputStream)
+      {
+        ImageInputStream in = (ImageInputStream) source;
+        in.mark();
+        canDecode = true;
+        for (int i = 0; i < SIGNATURE.length && canDecode; i++)
+          {
+            byte sig = (byte) in.read();
+            if (sig != SIGNATURE[i]) {
+              canDecode = false;
+            }
+          }
+        in.reset();
+      }
+    return canDecode;
+  }
+
+  /**
+   * Returns a new PNGImageReader instance.
+   *
+   * @param extension the extension, ignored
+   */
+  public ImageReader createReaderInstance(Object extension)
+    throws IOException
+  {
+    return new PNGImageReader(this);
+  }
+
+  /**
+   * Returns a description.
+   *
+   * @param locale the locale
+   */
+  public String getDescription(Locale locale)
+  {
+    return "Portable Network Graphics";
+  }
+
+}
diff --git a/libjava/classpath/gnu/javax/imageio/png/PNGPalette.java b/libjava/classpath/gnu/javax/imageio/png/PNGPalette.java
new file mode 100644
index 000000000..197cad846
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/png/PNGPalette.java
@@ -0,0 +1,127 @@
+/* PNGPalette.java --
+   Copyright (C) 2006 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.png;
+
+import java.awt.color.ColorSpace;
+import java.awt.image.IndexColorModel;
+
+/**
+ * A PNG Palette chunk.
+ */
+public class PNGPalette extends PNGChunk
+{
+  private int[] red,green,blue;
+
+  protected PNGPalette( int type, byte[] data, int crc ) throws PNGException
+  {
+    super( type, data, crc );
+    double l = data.length;
+    l /= 3.0;
+    // Check if it's divisible by 3. (Yuck.)
+    if( l - Math.floor(l) != 0.0 )
+      throw new PNGException("Invalid size of palette chunk.");
+    int nEntries = (int)l;
+
+    red = new int[ nEntries ];
+    green = new int[ nEntries ];
+    blue = new int[ nEntries ];
+    for( int i = 0; i < nEntries; i++ )
+      {
+        red[i] = (data[ i * 3 ] & 0xFF);
+        green[i] = (data[ i * 3 + 1 ] & 0xFF);
+        blue[i] = (data[ i * 3 + 2] & 0xFF);
+      }
+  }
+
+  public PNGPalette( IndexColorModel cm )
+  {
+    super( TYPE_PALETTE );
+    int n = cm.getMapSize();
+    data = new byte[ n * 3 ];
+    red = new int[ n ];
+    green = new int[ n ];
+    blue = new int[ n ];
+    for(int i = 0; i < n; i++ )
+      {
+        red[i] = data[i * 3] = (byte)cm.getRed(i);
+        green[i] = data[i * 3 + 1] = (byte)cm.getGreen(i);
+        blue[i] = data[i * 3 + 2] = (byte)cm.getBlue(i);
+      }
+  }
+
+  public IndexColorModel getPalette( ColorSpace cs )
+  {
+    int nc = red.length;
+    byte[] r = new byte[nc];
+    byte[] g = new byte[nc];
+    byte[] b = new byte[nc];
+
+    if( cs == null )
+      {
+        for(int i = 0; i < nc; i ++ )
+          {
+            r[i] = (byte)red[i];
+            g[i] = (byte)green[i];
+            b[i] = (byte)blue[i];
+          }
+      }
+    else
+      {
+        for(int i = 0; i < nc; i ++ )
+          {
+            float[] in = new float[3];
+            in[0] = (((float)red[i]) / 255f);
+            in[1] = (((float)green[i]) / 255f);
+            in[2] = (((float)blue[i]) / 255f);
+            float[] out = cs.toRGB( in );
+            r[i] = (byte)( Math.round(out[0] * 255.0) );
+            g[i] = (byte)( Math.round(out[1] * 255.0) );
+            b[i] = (byte)( Math.round(out[2] * 255.0) );
+          }
+      }
+    return new IndexColorModel(8, nc, r, g, b);
+  }
+
+  public String toString()
+  {
+    String s = "PNG Palette:\n";
+    for( int i = 0; i < red.length; i++)
+      s = s + "Index " + i + ": ["+ red[i] +", "+green[i]+", "+blue[i]+"]\n";
+    return s;
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/png/PNGPhys.java b/libjava/classpath/gnu/javax/imageio/png/PNGPhys.java
new file mode 100644
index 000000000..d15f09e88
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/png/PNGPhys.java
@@ -0,0 +1,112 @@
+/* PNGPhys.java --
+   Copyright (C) 2006 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.png;
+
+/**
+ * A PNG "pHYS" chunk - pixel physical dimensions
+ */
+public class PNGPhys extends PNGChunk
+{
+  long x, y;
+  double ratio;
+  boolean usesRatio;
+
+  protected PNGPhys( int type, byte[] data, int crc ) throws PNGException
+  {
+    super( type, data, crc );
+    if( data.length < 9 )
+      throw new PNGException("Unexpected size of pHYS chunk.");
+    x = ((data[0] & 0xFF) << 24) | ( (data[1] & 0xFF) << 16 ) |
+      ((data[2] & 0xFF) << 8) | (data[3] & 0xFF);
+    y = ((data[4] & 0xFF) << 24) | ( (data[5] & 0xFF) << 16 ) |
+      ((data[6] & 0xFF) << 8) | (data[7] & 0xFF);
+    if(data[8] == 0)
+      {
+        ratio = ((double)x)/((double)y);
+        usesRatio = true;
+      }
+  }
+
+  public PNGPhys( double ratio )
+  {
+    super( TYPE_PHYS );
+
+    this.ratio = ratio;
+    usesRatio = true;
+
+    if( ratio < 1.0 )
+      {
+        y = 0xFFFFFFFF;
+        x = (long)(0xFFFFFFFFL * ratio);
+      }
+    else
+      {
+        x = 0xFFFFFFFF;
+        y = (long)(0xFFFFFFFFL * ratio);
+      }
+    makeData();
+  }
+
+  public PNGPhys( int x, int y )
+  {
+    super( TYPE_PHYS );
+    usesRatio = false;
+    this.x = x;
+    this.y = y;
+    makeData();
+  }
+
+  private void makeData()
+  {
+    data = new byte[ 9 ];
+    byte[] a = getInt( (int)x );
+    byte[] b = getInt( (int)y );
+    data[0] = a[0]; data[1] = a[1]; data[2] = a[2]; data[3] = a[3];
+    data[4] = b[0]; data[5] = b[1]; data[6] = b[2]; data[7] = b[3];
+    data[7] = (usesRatio) ? 0 : (byte)0xFF;
+  }
+
+  public String toString()
+  {
+    String s = "PNG Physical pixel size chunk.";
+    if( usesRatio )
+      return s + " Aspect ratio (x/y): " + ratio;
+    else
+      return s + " " + x + " by " + y + " pixels per meter. (x, y).";
+  }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/png/PNGTime.java b/libjava/classpath/gnu/javax/imageio/png/PNGTime.java
new file mode 100644
index 000000000..824f06f83
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/png/PNGTime.java
@@ -0,0 +1,83 @@
+/* PNGTime.java --
+   Copyright (C) 2006 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.png;
+
+import java.util.Date;
+
+/**
+ * A PNG tIME chunk.
+ */
+public class PNGTime extends PNGChunk
+{
+  private Date date;
+
+  protected PNGTime( int type, byte[] data, int crc ) throws PNGException
+  {
+    super( type, data, crc );
+    if( data.length < 7 )
+      throw new PNGException("Unexpectedly short time chunk. ("+data.length+" bytes)");
+
+    // PNG value is absolute (2006, not 106 or 06), java is from 1900.
+    int year = ( (data[0] & 0xFF) << 8 ) | (data[1] & 0xFF);
+    int month = (data[2] & 0xFF); // java counts from 0. PNG from 1.
+    int day = (data[3] & 0xFF);
+    int hour = (data[4] & 0xFF);
+    int minute = (data[5] & 0xFF);
+    int second = (data[6] & 0xFF);
+    date = new Date( year - 1900, month - 1, day, hour, minute, second );
+  }
+
+  public PNGTime( Date d )
+  {
+    super( TYPE_TIME );
+    data = new byte[ 7 ];
+    int tmp = d.getYear() + 1900;
+    data[0] = (byte)((tmp & 0xFF00) >> 8);
+    data[1] = (byte)(tmp & 0x00FF);
+    data[2] = (byte)(d.getMonth() + 1);
+    data[3] = (byte)(d.getDay());
+    data[4] = (byte)(d.getHours());
+    data[5] = (byte)(d.getMinutes());
+    data[6] = (byte)(d.getSeconds());
+  }
+
+  public String toString()
+  {
+    return "PNG Time chunk: "+date;
+  }
+}