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diff --git a/src/share/classes/sun/java2d/pipe/hw/AccelSurface.java b/src/share/classes/sun/java2d/pipe/hw/AccelSurface.java
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+++ b/src/share/classes/sun/java2d/pipe/hw/AccelSurface.java
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+/*
+ * Copyright 2007-2008 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package sun.java2d.pipe.hw;
+
+import java.awt.Rectangle;
+import sun.java2d.Surface;
+
+/**
+ * Abstraction for a hardware accelerated surface.
+ */
+public interface AccelSurface extends BufferedContextProvider, Surface {
+    /**
+     * Undefined
+     */
+    public static final int UNDEFINED       = 0;
+    /**
+     * Window (or window substitute) surface
+     */
+    public static final int WINDOW          = 1;
+    /**
+     * Render-To Plain surface (pbuffer for OpenGL, Render Target surface
+     * for Direct3D)
+     */
+    public static final int RT_PLAIN        = 2;
+    /**
+     * Texture surface
+     */
+    public static final int TEXTURE         = 3;
+    /**
+     * A back-buffer surface (SwapChain surface for Direct3D, backbuffer for
+     * OpenGL)
+     */
+    public static final int FLIP_BACKBUFFER = 4;
+    /**
+     * Render-To Texture surface (fbobject for OpenGL, texture with render-to
+     * attribute for Direct3D)
+     */
+    public static final int RT_TEXTURE      = 5;
+
+    /**
+     * Returns {@code int} representing surface's type as defined by constants
+     * in this interface.
+     *
+     * @return an integer representing this surface's type
+     * @see AccelSurface#UNDEFINED
+     * @see AccelSurface#WINDOW
+     * @see AccelSurface#RT_PLAIN
+     * @see AccelSurface#TEXTURE
+     * @see AccelSurface#FLIP_BACKBUFFER
+     * @see AccelSurface#RT_TEXTURE
+     */
+    public int getType();
+
+    /**
+     * Returns a pointer to the native surface data associated with this
+     * surface.
+     * Note: this pointer is only valid on the rendering thread.
+     *
+     * @return pointer to the native surface's data
+     */
+    public long getNativeOps();
+
+    /**
+     * Returns a pointer to the real native resource
+     * of the specified type associated with this AccelSurface.
+     * Note: this pointer is only valid on the rendering thread.
+     *
+     * @param resType the type of the requested resource
+     * @return a long containing a pointer to the native resource of the
+     * specified type or 0L if such resource doesn't exist for this surface
+     */
+    public long getNativeResource(int resType);
+
+    /**
+     * Marks this surface dirty.
+     */
+    public void markDirty();
+
+    /**
+     * Returns whether the pipeline considers this surface valid. A surface
+     * may become invalid if it is disposed of, or resized.
+     *
+     * @return true if valid, false otherwise
+     */
+    public boolean isValid();
+
+    /**
+     * Returns whether this surface is lost. The return value is only valid
+     * on the render thread, meaning that even if this method returns
+     * {@code true} it could be lost in the next moment unless it is called
+     * on the rendering thread.
+     *
+     * @return true if the surface is known to be lost, false otherwise
+     */
+    public boolean isSurfaceLost();
+
+    /**
+     * Returns the requested bounds of the destination surface. The real bounds
+     * of the native accelerated surface may differ. Use
+     * {@link #getNativeBounds} to get the bounds of the native surface.
+     *
+     * @return Rectangle representing java surface's bounds
+     */
+    public Rectangle getBounds();
+
+    /**
+     * Returns real bounds of the native surface, which may differ from those
+     * returned by {@link #getBounds}.
+     *
+     * @return Rectangle representing native surface's bounds
+     */
+    public Rectangle getNativeBounds();
+}