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diff --git a/libjava/java/awt/image/LookupOp.java b/libjava/java/awt/image/LookupOp.java
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+/* LookupOp.java -- Filter that converts each pixel using a lookup table.
+   Copyright (C) 2004  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., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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 java.awt.image;
+
+import java.awt.Graphics2D;
+import java.awt.RenderingHints;
+import java.awt.geom.Point2D;
+import java.awt.geom.Rectangle2D;
+
+/**
+ * LookupOp is a filter that converts each pixel using a lookup table.
+ * 
+ * For filtering Rasters, the lookup table must have either one component
+ * that is applied to all bands, or one component for every band in the
+ * Rasters.
+ * 
+ * For BufferedImages, the lookup table may apply to both color and alpha
+ * components.  If the lookup table contains one component, or if there are
+ * the same number of components as color components in the source, the table
+ * applies to all color components.  Otherwise the table applies to all
+ * components including alpha.  Alpha premultiplication is ignored during the
+ * lookup filtering.
+ * 
+ * After filtering, if color conversion is necessary, the conversion happens,
+ * taking alpha premultiplication into account.
+ * 
+ * @author jlquinn
+ */
+public class LookupOp implements BufferedImageOp, RasterOp
+{
+  private LookupTable lut;
+  private RenderingHints hints;
+  
+  /** Construct a new LookupOp.
+   * 
+   * @param lookup LookupTable to use.
+   * @param hints Rendering hints (can be null).
+   */
+  public LookupOp(LookupTable lookup, RenderingHints hints)
+  {
+    lut = lookup;
+    this.hints = hints;
+  }
+  
+  /* (non-Javadoc)
+   * @see java.awt.image.BufferedImageOp#filter(java.awt.image.BufferedImage, java.awt.image.BufferedImage)
+   */
+  public BufferedImage filter(BufferedImage src, BufferedImage dst)
+  {
+    if (src.getColorModel() instanceof IndexColorModel)
+      throw new IllegalArgumentException("LookupOp.filter: IndexColorModel "
+					 + "not allowed");
+    if (dst == null)
+      dst = createCompatibleDestImage(src, src.getColorModel());
+
+    // Set up for potential colormodel mismatch
+    BufferedImage tgt;
+    if (dst.getColorModel().equals(src.getColorModel()))
+      tgt = dst;
+    else
+      tgt = createCompatibleDestImage(src, src.getColorModel());
+
+    Raster sr = src.getRaster();
+    WritableRaster dr = tgt.getRaster();
+
+    if (src.getColorModel().hasAlpha() &&
+        (lut.getNumComponents() == 1 ||
+         lut.getNumComponents() == src.getColorModel().getNumColorComponents()))
+    {
+      // Need to ignore alpha for lookup
+      int[] dbuf = new int[src.getColorModel().getNumComponents()];
+      int tmpBands = src.getColorModel().getNumColorComponents();
+      int[] tmp = new int[tmpBands];
+        
+      // Filter the pixels
+      for (int y = src.getMinY(); y < src.getHeight() + src.getMinY(); y++)
+        for (int x = src.getMinX(); x < src.getWidth() + src.getMinX(); x++)
+        {	
+          // Filter only color components, but also copy alpha
+          sr.getPixel(x, y, dbuf);
+          System.arraycopy(dbuf, 0, tmp, 0, tmpBands);
+          dr.setPixel(x, y, lut.lookupPixel(tmp, dbuf));
+        }
+    }
+    else if (lut.getNumComponents() != 1
+	     &&
+	     lut.getNumComponents() != src.getColorModel().getNumComponents())
+      throw new IllegalArgumentException("LookupOp.filter: "
+					 + "Incompatible lookup "
+					 + "table and source image");
+
+    // No alpha to ignore
+    int[] dbuf = new int[src.getColorModel().getNumComponents()];
+        
+    // Filter the pixels
+    for (int y = src.getMinY(); y < src.getHeight() + src.getMinY(); y++)
+      for (int x = src.getMinX(); x < src.getWidth() + src.getMinX(); x++)
+        dr.setPixel(x, y, lut.lookupPixel(sr.getPixel(x, y, dbuf), dbuf));
+
+    if (tgt != dst)
+    {
+      // Convert between color models.
+      // TODO Check that premultiplied alpha is handled correctly here.
+      Graphics2D gg = dst.createGraphics();
+      gg.setRenderingHints(hints);
+      gg.drawImage(tgt, 0, 0, null);
+      gg.dispose();
+    }
+    
+    return dst;
+  }
+
+  /* (non-Javadoc)
+   * @see java.awt.image.BufferedImageOp#getBounds2D(java.awt.image.BufferedImage)
+   */
+  public Rectangle2D getBounds2D(BufferedImage src)
+  {
+    return src.getRaster().getBounds();
+  }
+
+  /* (non-Javadoc)
+   * @see java.awt.image.BufferedImageOp#createCompatibleDestImage(java.awt.image.BufferedImage, java.awt.image.ColorModel)
+   */
+  public BufferedImage createCompatibleDestImage(BufferedImage src,
+						 ColorModel dstCM)
+  {
+    // FIXME: set properties to those in src
+    return new BufferedImage(dstCM,
+			     src.getRaster().createCompatibleWritableRaster(),
+			     src.isPremultiplied, null);
+  }
+
+  /** Return corresponding destination point for source point.
+   * 
+   * LookupOp will return the value of src unchanged.
+   * @param src The source point.
+   * @param dst The destination point.
+   * @see java.awt.image.RasterOp#getPoint2D(java.awt.geom.Point2D, java.awt.geom.Point2D)
+   */
+  public Point2D getPoint2D(Point2D src, Point2D dst)
+  {
+    if (dst == null)
+      return (Point2D) src.clone();
+
+    dst.setLocation(src);
+    return dst;
+  }
+
+  /** Return the LookupTable for this op. */
+  public LookupTable getTable()
+  {
+    return lut;
+  }
+
+  /* (non-Javadoc)
+   * @see java.awt.image.RasterOp#getRenderingHints()
+   */
+  public RenderingHints getRenderingHints()
+  {
+    return hints;
+  }
+
+  /** Filter a raster through a lookup table.
+   * 
+   * Applies the lookup table for this Rasterop to each pixel of src and
+   * puts the results in dest.  If dest is null, a new Raster is created and
+   * returned.
+   * 
+   * @param src The source raster.
+   * @param dest The destination raster.
+   * @return The WritableRaster with the filtered pixels.
+   * @throws IllegalArgumentException if lookup table has more than one
+   * component but not the same as src and dest.
+   * @see java.awt.image.RasterOp#filter(java.awt.image.Raster, java.awt.image.WritableRaster)
+   */
+  public WritableRaster filter(Raster src, WritableRaster dest)
+  {
+    if (dest == null) 
+      // Allocate a raster if needed
+      dest = createCompatibleDestRaster(src);
+    else
+      if (src.getNumBands() != dest.getNumBands())
+        throw new IllegalArgumentException();
+
+    if (lut.getNumComponents() != 1
+	&& lut.getNumComponents() != src.getNumBands())
+      throw new IllegalArgumentException();
+
+   
+    // Allocate pixel storage. 
+    int[] tmp = new int[src.getNumBands()];
+    
+    // Filter the pixels
+    for (int y = src.getMinY(); y < src.getHeight() + src.getMinY(); y++)
+      for (int x = src.getMinX(); x < src.getWidth() + src.getMinX(); x++)
+        dest.setPixel(x, y, lut.lookupPixel(src.getPixel(x, y, tmp), tmp));
+    return dest;
+  }
+
+  /* (non-Javadoc)
+   * @see java.awt.image.RasterOp#getBounds2D(java.awt.image.Raster)
+   */
+  public Rectangle2D getBounds2D(Raster src)
+  {
+    return src.getBounds();
+  }
+
+  /* (non-Javadoc)
+   * @see java.awt.image.RasterOp#createCompatibleDestRaster(java.awt.image.Raster)
+   */
+  public WritableRaster createCompatibleDestRaster(Raster src)
+  {
+    return src.createCompatibleWritableRaster();
+  }
+
+}