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diff --git a/src/net/java/games/jogl/GLPbuffer.java b/src/net/java/games/jogl/GLPbuffer.java
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+++ b/src/net/java/games/jogl/GLPbuffer.java
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+/*
+ * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ * - Redistribution of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ * - Redistribution in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * 
+ * This software is provided "AS IS," without a warranty of any kind. ALL
+ * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
+ * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
+ * MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
+ * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
+ * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
+ * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
+ * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ * 
+ * You acknowledge that this software is not designed or intended for use
+ * in the design, construction, operation or maintenance of any nuclear
+ * facility.
+ * 
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+package net.java.games.jogl;
+
+/** Offscreen rendering support via pbuffers. This class adds very
+    little functionality over the GLDrawable class; the only methods
+    are those which allow access to the pbuffer's contents as a
+    texture map. These methods are currently highly experimental and
+    may be removed in a future release. */
+
+public interface GLPbuffer extends GLDrawable {
+  /** Binds this pbuffer to its internal texture target. Only valid to
+      call if offscreen render-to-texture has been specified in the
+      GLCapabilities for this GLPbuffer. If the
+      render-to-texture-rectangle capability has also been specified,
+      this will use e.g. wglBindTexImageARB as its implementation and
+      cause the texture to be bound to e.g. the
+      GL_TEXTURE_RECTANGLE_NV state; otherwise, during the display()
+      phase the pixels will have been copied into an internal texture
+      target and this will cause that to be bound to the GL_TEXTURE_2D
+      state. */
+  public void bindTexture();
+
+  /** Unbinds the pbuffer from its internal texture target. */
+  public void releaseTexture();
+}