1 files changed, 38 insertions, 2 deletions

diff --git a/libjava/gnu/awt/xlib/XGraphicsConfiguration.java b/libjava/gnu/awt/xlib/XGraphicsConfiguration.java
index 69cc6e2b5e2..9ae12d6f8b9 100644
--- a/libjava/gnu/awt/xlib/XGraphicsConfiguration.java
+++ b/libjava/gnu/awt/xlib/XGraphicsConfiguration.java
@@ -12,6 +12,7 @@ import java.awt.GraphicsConfiguration;
 import java.awt.Rectangle;
 import java.awt.Graphics2D;
 import java.awt.Graphics;
+import java.awt.GraphicsDevice;
 import java.awt.Point;
 import java.awt.Color;
 import java.awt.color.ColorSpace;
@@ -128,7 +129,8 @@ public class XGraphicsConfiguration extends GraphicsConfiguration
    * maybe be moved to a different location.]
    *
    * @param offset Offset to data. The given offset does not include
-   * data buffer offset, which will also be added.  */
+   * data buffer offset, which will also be added.  
+   */
   static void attachData(XImage ximage, DataBuffer dataB, int offset)
   {
     offset += dataB.getOffset();
@@ -236,13 +238,47 @@ public class XGraphicsConfiguration extends GraphicsConfiguration
 				  rmap, gmap, bmap, amap);
   }
 
+  /**
+   * Gets the associated device that this configuration describes.
+   *
+   * @return the device
+   */
+  public GraphicsDevice getDevice()
+  {
+    throw new UnsupportedOperationException("not implemented");  
+  }
+
+  /**
+   * Returns a buffered image optimized to this device, so that blitting can
+   * be supported in the buffered image.
+   *
+   * @param w the width of the buffer
+   * @param h the height of the buffer
+   * @return the buffered image, or null if none is supported
+   */
   public BufferedImage createCompatibleImage(int width,
 					     int height,
 					     int transparency)
   {
     throw new UnsupportedOperationException("not implemented");
   }
-    
+
+  /**
+   * Returns a buffered volatile image optimized to this device, so that
+   * blitting can be supported in the buffered image. Because the buffer is
+   * volatile, it can be optimized by native graphics accelerators.
+   *
+   * @param w the width of the buffer
+   * @param h the height of the buffer
+   * @return the buffered image, or null if none is supported
+   * @see Component#createVolatileImage(int, int)
+   * @since 1.4
+   */
+  public VolatileImage createCompatibleVolatileImage(int w, int h)
+  {
+    throw new UnsupportedOperationException("not implemented");
+  }
+
   /**
    * FIXME: I'm not sure which color model that should be returned here.
    */