Deleted obsolete source code in preparation for copying JOGL_2_SANDBOX

on to trunk


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@1958 232f8b59-042b-4e1e-8c03-345bb8c30851

1 files changed, 0 insertions, 1257 deletions

diff --git a/src/classes/javax/media/opengl/GLJPanel.java b/src/classes/javax/media/opengl/GLJPanel.java
deleted file mode 100644
index 6be6fa2b9..000000000
--- a/src/classes/javax/media/opengl/GLJPanel.java
+++ /dev/null
@@ -1,1257 +0,0 @@
-/*
- * 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
- * MICROSYSTEMS, 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 javax.media.opengl;
-
-import java.awt.*;
-import java.awt.geom.*;
-import java.awt.image.*;
-import java.beans.*;
-import javax.swing.*;
-import java.nio.*;
-import java.security.*;
-import javax.swing.JComponent;
-import javax.swing.JPanel;
-import com.sun.opengl.impl.*;
-
-// FIXME: Subclasses need to call resetGLFunctionAvailability() on their
-// context whenever the displayChanged() function is called on their
-// GLEventListeners
-
-/** A lightweight Swing component which provides OpenGL rendering
-    support. Provided for compatibility with Swing user interfaces
-    when adding a heavyweight doesn't work either because of
-    Z-ordering or LayoutManager problems. <P>
-
-    The GLJPanel can be made transparent by creating it with a
-    GLCapabilities object with alpha bits specified and calling {@link
-    #setOpaque}(false). Pixels with resulting OpenGL alpha values less
-    than 1.0 will be overlaid on any underlying Swing rendering. <P>
-
-    Notes specific to the Reference Implementation: This component 
-    attempts to use hardware-accelerated rendering via pbuffers and 
-    falls back on to software rendering if problems occur. 
-    Note that because this component attempts to use pbuffers for
-    rendering, and because pbuffers can not be resized, somewhat
-    surprising behavior may occur during resize operations; the {@link
-    GLEventListener#init} method may be called multiple times as the
-    pbuffer is resized to be able to cover the size of the GLJPanel.
-    This behavior is correct, as the textures and display lists for
-    the GLJPanel will have been lost during the resize operation. The
-    application should attempt to make its GLEventListener.init()
-    methods as side-effect-free as possible. <P>
-
-*/
-
-public class GLJPanel extends JPanel implements GLAutoDrawable {
-  private static final boolean DEBUG = Debug.debug("GLJPanel");
-  private static final boolean VERBOSE = Debug.verbose();
-
-  private GLDrawableHelper drawableHelper = new GLDrawableHelper();
-  private volatile boolean isInitialized;
-  private volatile boolean shouldInitialize = false;
-
-  // Data used for either pbuffers or pixmap-based offscreen surfaces
-  private GLCapabilities        offscreenCaps;
-  private GLCapabilitiesChooser chooser;
-  private GLContext             shareWith;
-  // This image is exactly the correct size to render into the panel
-  private BufferedImage         offscreenImage;
-  // One of these is used to store the read back pixels before storing
-  // in the BufferedImage
-  private ByteBuffer            readBackBytes;
-  private IntBuffer             readBackInts;
-  private int                   readBackWidthInPixels;
-  private int                   readBackHeightInPixels;
-  // Width of the actual GLJPanel
-  private int panelWidth   = 0;
-  private int panelHeight  = 0;
-  private Updater updater;
-  private int awtFormat;
-  private int glFormat;
-  private int glType;
-  // Lazy reshape notification
-  private boolean handleReshape = false;
-  private boolean sendReshape = true;
-
-  // Implementation using pbuffers
-  private static boolean hardwareAccelerationDisabled =
-    Debug.isPropertyDefined("jogl.gljpanel.nohw");
-  private static boolean softwareRenderingDisabled =
-    Debug.isPropertyDefined("jogl.gljpanel.nosw");
-  private GLPbuffer pbuffer;
-  private int       pbufferWidth  = 256;
-  private int       pbufferHeight = 256;
-
-  // Implementation using software rendering
-  private GLDrawableImpl offscreenDrawable;
-  private GLContextImpl offscreenContext;
-
-  // For handling reshape events lazily
-  private int reshapeX;
-  private int reshapeY;
-  private int reshapeWidth;
-  private int reshapeHeight;
-
-  // For saving/restoring of OpenGL state during ReadPixels
-  private int[] swapbytes    = new int[1];
-  private int[] rowlength    = new int[1];
-  private int[] skiprows     = new int[1];
-  private int[] skippixels   = new int[1];
-  private int[] alignment    = new int[1];
-
-  // Implementation using Java2D OpenGL pipeline's back buffer
-  private boolean oglPipelineEnabled =
-    Java2D.isOGLPipelineActive() &&
-    !Debug.isPropertyDefined("jogl.gljpanel.noogl");
-  // Opaque Object identifier representing the Java2D surface we are
-  // drawing to; used to determine when to destroy and recreate JOGL
-  // context
-  private Object j2dSurface;
-  // Graphics object being used during Java2D update action
-  // (absolutely essential to cache this)
-  private Graphics cached2DGraphics;
-  // No-op context representing the Java2D OpenGL context
-  private GLContext j2dContext;
-  // Context associated with no-op drawable representing the JOGL
-  // OpenGL context
-  private GLDrawable joglDrawable;
-  // The real OpenGL context JOGL uses to render
-  private GLContext  joglContext;
-  // State captured from Java2D OpenGL context necessary in order to
-  // properly render into Java2D back buffer
-  private int[] drawBuffer   = new int[1];
-  private int[] readBuffer   = new int[1];
-  // This is required when the FBO option of the Java2D / OpenGL
-  // pipeline is active
-  private int[] frameBuffer  = new int[1];
-  // Current (as of this writing) NVidia drivers have a couple of bugs
-  // relating to the sharing of framebuffer and renderbuffer objects
-  // between contexts. It appears we have to (a) reattach the color
-  // attachment and (b) actually create new depth buffer storage and
-  // attach it in order for the FBO to behave properly in our context.
-  private boolean checkedForFBObjectWorkarounds;
-  private boolean fbObjectWorkarounds;
-  private int[] frameBufferDepthBuffer;
-  private int[] frameBufferTexture;
-  private boolean createNewDepthBuffer;
-  // Current (as of this writing) ATI drivers have problems when the
-  // same FBO is bound in two different contexts. Here we check for
-  // this case and explicitly release the FBO from Java2D's context
-  // before switching to ours. Java2D will re-bind the FBO when it
-  // makes its context current the next time. Interestingly, if we run
-  // this code path on NVidia hardware, it breaks the rendering
-  // results -- no output is generated. This doesn't appear to be an
-  // interaction with the abovementioned NVidia-specific workarounds,
-  // as even if we disable that code the FBO is still reported as
-  // incomplete in our context.
-  private boolean checkedGLVendor;
-  private boolean vendorIsATI;
-
-  // Holding on to this GraphicsConfiguration is a workaround for a
-  // problem in the Java 2D / JOGL bridge when FBOs are enabled; see
-  // comment related to Issue 274 below
-  private GraphicsConfiguration workaroundConfig;
-
-  // These are always set to (0, 0) except when the Java2D / OpenGL
-  // pipeline is active
-  private int   viewportX;
-  private int   viewportY;
-
-  static {
-    // Force eager initialization of part of the Java2D class since
-    // otherwise it's likely it will try to be initialized while on
-    // the Queue Flusher Thread, which is not allowed
-    if (Java2D.isOGLPipelineActive() && Java2D.isFBOEnabled()) {
-      Java2D.getShareContext(GraphicsEnvironment.
-                             getLocalGraphicsEnvironment().
-                             getDefaultScreenDevice().
-                             getDefaultConfiguration());
-    }
-  }
-
-  /** Creates a new GLJPanel component with a default set of OpenGL
-      capabilities and using the default OpenGL capabilities selection
-      mechanism. */
-  public GLJPanel() {
-    this(null);
-  }
-
-  /** Creates a new GLJPanel component with the requested set of
-      OpenGL capabilities, using the default OpenGL capabilities
-      selection mechanism. */
-  public GLJPanel(GLCapabilities capabilities) {
-    this(capabilities, null, null);
-  }
-
-  /** Creates a new GLJPanel component. The passed GLCapabilities
-      specifies the OpenGL capabilities for the component; if null, a
-      default set of capabilities is used. The GLCapabilitiesChooser
-      specifies the algorithm for selecting one of the available
-      GLCapabilities for the component; a DefaultGLCapabilitesChooser
-      is used if null is passed for this argument. The passed
-      GLContext specifies an OpenGL context with which to share
-      textures, display lists and other OpenGL state, and may be null
-      if sharing is not desired. See the note in the overview documentation on
-      <a href="../../../overview-summary.html#SHARING">context sharing</a>.
-  */
-  public GLJPanel(GLCapabilities capabilities, GLCapabilitiesChooser chooser, GLContext shareWith) {
-    super();
-
-    // Works around problems on many vendors' cards; we don't need a
-    // back buffer for the offscreen surface anyway
-    if (capabilities != null) {
-        offscreenCaps = (GLCapabilities) capabilities.clone();
-    } else {
-        offscreenCaps = new GLCapabilities();
-    }
-    offscreenCaps.setDoubleBuffered(false);
-    this.chooser = ((chooser != null) ? chooser : new DefaultGLCapabilitiesChooser());
-    this.shareWith = shareWith;
-  }
-
-  public void display() {
-    if (EventQueue.isDispatchThread()) {
-      // Want display() to be synchronous, so call paintImmediately()
-      paintImmediately(0, 0, getWidth(), getHeight());
-    } else {
-      // Multithreaded redrawing of Swing components is not allowed,
-      // so do everything on the event dispatch thread
-      try {
-        EventQueue.invokeAndWait(paintImmediatelyAction);
-      } catch (Exception e) {
-        throw new GLException(e);
-      }
-    }
-  }
-
-  private void captureJ2DState(GL gl, Graphics g) {
-    gl.glGetIntegerv(GL.GL_DRAW_BUFFER, drawBuffer, 0);
-    gl.glGetIntegerv(GL.GL_READ_BUFFER, readBuffer, 0);
-    if (Java2D.isFBOEnabled() &&
-        Java2D.getOGLSurfaceType(g) == Java2D.FBOBJECT) {
-      if (DEBUG && VERBOSE) {
-        System.err.println("GLJPanel: Fetching GL_FRAMEBUFFER_BINDING_EXT");
-      }
-      gl.glGetIntegerv(GL.GL_FRAMEBUFFER_BINDING_EXT, frameBuffer, 0);
-
-      if (fbObjectWorkarounds ||
-          !checkedForFBObjectWorkarounds) {
-        // See above for description of what we are doing here
-        if (frameBufferTexture == null)
-          frameBufferTexture = new int[1];
-
-        // Query the framebuffer for its color buffer so we can hook
-        // it back up in our context (should not be necessary)
-        gl.glGetFramebufferAttachmentParameterivEXT(GL.GL_FRAMEBUFFER_EXT,
-                                                    GL.GL_COLOR_ATTACHMENT0_EXT,
-                                                    GL.GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT,
-                                                    frameBufferTexture, 0);
-        if (DEBUG && VERBOSE) {
-          System.err.println("GLJPanel: FBO COLOR_ATTACHMENT0: " + frameBufferTexture[0]);
-        }
-      }
-
-      if (!checkedGLVendor) {
-        checkedGLVendor = true;
-        String vendor = gl.glGetString(GL.GL_VENDOR);
-
-        if ((vendor != null) &&
-            vendor.startsWith("ATI")) {
-          vendorIsATI = true;
-        }
-      }
-
-      if (vendorIsATI) {
-        // Unbind the FBO from Java2D's context as it appears that
-        // driver bugs on ATI's side are causing problems if the FBO is
-        // simultaneously bound to more than one context. Java2D will
-        // re-bind the FBO during the next validation of its context.
-        // Note: this breaks rendering at least on NVidia hardware
-        gl.glBindFramebufferEXT(GL.GL_FRAMEBUFFER_EXT, 0);
-      }
-    }
-  }
-
-  private boolean preGL(Graphics g) {
-    GL gl = joglContext.getGL();
-    // Set up needed state in JOGL context from Java2D context
-    gl.glEnable(GL.GL_SCISSOR_TEST);
-    Rectangle r = Java2D.getOGLScissorBox(g);
-
-    if (r == null) {
-      if (DEBUG && VERBOSE) {
-        System.err.println("Java2D.getOGLScissorBox() returned null");
-      }
-      return false;
-    }
-    if (DEBUG && VERBOSE) {
-      System.err.println("GLJPanel: gl.glScissor(" + r.x + ", " + r.y + ", " + r.width + ", " + r.height + ")");
-    }
-
-    gl.glScissor(r.x, r.y, r.width, r.height);
-    Rectangle oglViewport = Java2D.getOGLViewport(g, panelWidth, panelHeight);
-    // If the viewport X or Y changes, in addition to the panel's
-    // width or height, we need to send a reshape operation to the
-    // client
-    if ((viewportX != oglViewport.x) ||
-        (viewportY != oglViewport.y)) {
-      sendReshape = true;
-      if (DEBUG) {
-        System.err.println("Sending reshape because viewport changed");
-        System.err.println("  viewportX (" + viewportX + ") ?= oglViewport.x (" + oglViewport.x + ")");
-        System.err.println("  viewportY (" + viewportY + ") ?= oglViewport.y (" + oglViewport.y + ")");
-      }
-    }
-    viewportX = oglViewport.x;
-    viewportY = oglViewport.y;
-
-    // If the FBO option is active, bind to the FBO from the Java2D
-    // context.
-    // Note that all of the plumbing in the context sharing stuff will
-    // allow us to bind to this object since it's in our namespace.
-    if (Java2D.isFBOEnabled() &&
-        Java2D.getOGLSurfaceType(g) == Java2D.FBOBJECT) {
-      if (DEBUG && VERBOSE) {
-        System.err.println("GLJPanel: Binding to framebuffer object " + frameBuffer[0]);
-      }
-
-      // The texture target for Java2D's OpenGL pipeline when using FBOs
-      // -- either GL_TEXTURE_2D or GL_TEXTURE_RECTANGLE_ARB
-      int fboTextureTarget = Java2D.getOGLTextureType(g);
-
-      if (!checkedForFBObjectWorkarounds) {
-        checkedForFBObjectWorkarounds = true;
-        gl.glBindTexture(fboTextureTarget, 0);
-        gl.glBindFramebufferEXT(GL.GL_FRAMEBUFFER_EXT, frameBuffer[0]);
-        if (gl.glCheckFramebufferStatusEXT(GL.GL_FRAMEBUFFER_EXT) !=
-            GL.GL_FRAMEBUFFER_COMPLETE_EXT) {
-          // Need to do workarounds
-          fbObjectWorkarounds = true;
-          createNewDepthBuffer = true;
-          if (DEBUG) {
-            System.err.println("-- GLJPanel: discovered frame_buffer_object workarounds to be necessary");
-          }
-        } else {
-          // Don't need the frameBufferTexture temporary any more
-          frameBufferTexture = null;
-        }
-      }
-
-      if (fbObjectWorkarounds && createNewDepthBuffer) {
-        if (frameBufferDepthBuffer == null)
-          frameBufferDepthBuffer = new int[1];
-
-        // Create our own depth renderbuffer and associated storage
-        // If we have an old one, delete it
-        if (frameBufferDepthBuffer[0] != 0) {
-          gl.glDeleteRenderbuffersEXT(1, frameBufferDepthBuffer, 0);
-          frameBufferDepthBuffer[0] = 0;
-        }
-
-        gl.glBindTexture(fboTextureTarget, frameBufferTexture[0]);
-        int[] width = new int[1];
-        int[] height = new int[1];
-        gl.glGetTexLevelParameteriv(fboTextureTarget, 0, GL.GL_TEXTURE_WIDTH, width, 0);
-        gl.glGetTexLevelParameteriv(fboTextureTarget, 0, GL.GL_TEXTURE_HEIGHT, height, 0);
-                    
-        gl.glGenRenderbuffersEXT(1, frameBufferDepthBuffer, 0);
-        if (DEBUG) {
-          System.err.println("GLJPanel: Generated frameBufferDepthBuffer " + frameBufferDepthBuffer[0] +
-                             " with width " + width[0] + ", height " + height[0]);
-        }
-                    
-        gl.glBindRenderbufferEXT(GL.GL_RENDERBUFFER_EXT, frameBufferDepthBuffer[0]);
-        // FIXME: may need a loop here like in Java2D
-        gl.glRenderbufferStorageEXT(GL.GL_RENDERBUFFER_EXT, GL.GL_DEPTH_COMPONENT24, width[0], height[0]);
-
-        gl.glBindRenderbufferEXT(GL.GL_RENDERBUFFER_EXT, 0);
-        createNewDepthBuffer = false;
-      }
-
-      gl.glBindTexture(fboTextureTarget, 0);
-      gl.glBindFramebufferEXT(GL.GL_FRAMEBUFFER_EXT, frameBuffer[0]);
-
-      if (fbObjectWorkarounds) {
-        // Hook up the color and depth buffer attachment points for this framebuffer
-        gl.glFramebufferTexture2DEXT(GL.GL_FRAMEBUFFER_EXT,
-                                     GL.GL_COLOR_ATTACHMENT0_EXT,
-                                     fboTextureTarget,
-                                     frameBufferTexture[0],
-                                     0);
-        if (DEBUG && VERBOSE) {
-          System.err.println("GLJPanel: frameBufferDepthBuffer: " + frameBufferDepthBuffer[0]);
-        }
-        gl.glFramebufferRenderbufferEXT(GL.GL_FRAMEBUFFER_EXT,
-                                        GL.GL_DEPTH_ATTACHMENT_EXT,
-                                        GL.GL_RENDERBUFFER_EXT,
-                                        frameBufferDepthBuffer[0]);
-      }
-
-      if (DEBUG) {
-        int status = gl.glCheckFramebufferStatusEXT(GL.GL_FRAMEBUFFER_EXT);
-        if (status != GL.GL_FRAMEBUFFER_COMPLETE_EXT) {
-          throw new GLException("Error: framebuffer was incomplete: status = 0x" +
-                                Integer.toHexString(status));
-        }
-      }
-    } else {
-      if (DEBUG && VERBOSE) {
-        System.err.println("GLJPanel: Setting up drawBuffer " + drawBuffer[0] +
-                           " and readBuffer " + readBuffer[0]);
-      }
-
-      gl.glDrawBuffer(drawBuffer[0]);
-      gl.glReadBuffer(readBuffer[0]);
-    }
-
-    return true;
-  }
-
-  private void postGL(Graphics g) {
-    if (Java2D.isFBOEnabled() &&
-        Java2D.getOGLSurfaceType(g) == Java2D.FBOBJECT) {
-      // Unbind the framebuffer from our context to work around
-      // apparent driver bugs or at least unspecified behavior causing
-      // OpenGL to run out of memory with certain cards and drivers
-      GL gl = joglContext.getGL();
-      gl.glBindFramebufferEXT(GL.GL_FRAMEBUFFER_EXT, 0);
-    }
-  }
-
-  /** Overridden to cause OpenGL rendering to be performed during
-      repaint cycles. Subclasses which override this method must call
-      super.paintComponent() in their paintComponent() method in order
-      to function properly. <P>
-
-      <B>Overrides:</B>
-      <DL><DD><CODE>paintComponent</CODE> in class <CODE>javax.swing.JComponent</CODE></DD></DL> */
-  protected void paintComponent(final Graphics g) {
-    if (Beans.isDesignTime()) {
-      // Make GLJPanel behave better in NetBeans GUI builder
-      g.setColor(Color.BLACK);
-      g.fillRect(0, 0, getWidth(), getHeight());
-      FontMetrics fm = g.getFontMetrics();
-      String name = getName();
-      if (name == null) {
-        name = getClass().getName();
-        int idx = name.lastIndexOf('.');
-        if (idx >= 0) {
-          name = name.substring(idx + 1);
-        }
-      }
-      Rectangle2D bounds = fm.getStringBounds(name, g);
-      g.setColor(Color.WHITE);
-      g.drawString(name,
-                   (int) ((getWidth()  - bounds.getWidth())  / 2),
-                   (int) ((getHeight() + bounds.getHeight()) / 2));
-      return;
-    }
-
-    if (shouldInitialize) {
-      initialize();
-    }
-
-    if (!isInitialized) {
-      return;
-    }
-
-    // NOTE: must do this when the context is not current as it may
-    // involve destroying the pbuffer (current context) and
-    // re-creating it -- tricky to do properly while the context is
-    // current
-    if (handleReshape) {
-      handleReshape();
-    }
-
-    updater.setGraphics(g);
-
-    if (oglPipelineEnabled) {
-
-      // This is a workaround for an issue in the Java 2D / JOGL
-      // bridge (reported by an end user as JOGL Issue 274) where Java
-      // 2D can occasionally leave its internal OpenGL context current
-      // to the on-screen window rather than its internal "scratch"
-      // pbuffer surface to which the FBO is attached. JOGL expects to
-      // find a stable OpenGL drawable (on Windows, an HDC) upon which
-      // it can create another OpenGL context. It turns out that, on
-      // Windows, when Java 2D makes its internal OpenGL context
-      // current against the window in order to put pixels on the
-      // screen, it gets the device context for the window, makes its
-      // context current, and releases the device context. This means
-      // that when JOGL's Runnable gets to run below, the HDC is
-      // already invalid. The workaround for this is to force Java 2D
-      // to make its context current to the scratch surface, which we
-      // can do by executing an empty Runnable with the "shared"
-      // context current. This will be fixed in a Java SE 6 update
-      // release, hopefully 6u2.
-      if (Java2D.isFBOEnabled()) {
-        if (workaroundConfig == null) {
-          workaroundConfig = GraphicsEnvironment.
-            getLocalGraphicsEnvironment().
-            getDefaultScreenDevice().
-            getDefaultConfiguration();
-        }
-        Java2D.invokeWithOGLSharedContextCurrent(workaroundConfig, new Runnable() { public void run() {}});
-      }
-
-      Java2D.invokeWithOGLContextCurrent(g, new Runnable() {
-          public void run() {
-            if (DEBUG && VERBOSE) {
-              System.err.println("-- In invokeWithOGLContextCurrent");
-            }
-
-            // Create no-op context representing Java2D context
-            if (j2dContext == null) {
-              j2dContext = GLDrawableFactory.getFactory().createExternalGLContext();
-              if (DEBUG) {
-                j2dContext.setGL(new DebugGL(j2dContext.getGL()));
-              }
-
-              // Check to see whether we can support the requested
-              // capabilities or need to fall back to a pbuffer
-              // FIXME: add more checks?
-
-              j2dContext.makeCurrent();
-              GL gl = j2dContext.getGL();
-              if ((getGLInteger(gl, GL.GL_RED_BITS)         < offscreenCaps.getRedBits())        ||
-                  (getGLInteger(gl, GL.GL_GREEN_BITS)       < offscreenCaps.getGreenBits())      ||
-                  (getGLInteger(gl, GL.GL_BLUE_BITS)        < offscreenCaps.getBlueBits())       ||
-                  //                  (getGLInteger(gl, GL.GL_ALPHA_BITS)       < offscreenCaps.getAlphaBits())      ||
-                  (getGLInteger(gl, GL.GL_ACCUM_RED_BITS)   < offscreenCaps.getAccumRedBits())   ||
-                  (getGLInteger(gl, GL.GL_ACCUM_GREEN_BITS) < offscreenCaps.getAccumGreenBits()) ||
-                  (getGLInteger(gl, GL.GL_ACCUM_BLUE_BITS)  < offscreenCaps.getAccumBlueBits())  ||
-                  (getGLInteger(gl, GL.GL_ACCUM_ALPHA_BITS) < offscreenCaps.getAccumAlphaBits()) ||
-                  //          (getGLInteger(gl, GL.GL_DEPTH_BITS)       < offscreenCaps.getDepthBits())      ||
-                  (getGLInteger(gl, GL.GL_STENCIL_BITS)     < offscreenCaps.getStencilBits())) {
-                if (DEBUG) {
-                  System.err.println("GLJPanel: Falling back to pbuffer-based support because Java2D context insufficient");
-                  System.err.println("                    Available              Required");
-                  System.err.println("GL_RED_BITS         " + getGLInteger(gl, GL.GL_RED_BITS)         + "              " + offscreenCaps.getRedBits());
-                  System.err.println("GL_GREEN_BITS       " + getGLInteger(gl, GL.GL_GREEN_BITS)       + "              " + offscreenCaps.getGreenBits());
-                  System.err.println("GL_BLUE_BITS        " + getGLInteger(gl, GL.GL_BLUE_BITS)        + "              " + offscreenCaps.getBlueBits());
-                  System.err.println("GL_ALPHA_BITS       " + getGLInteger(gl, GL.GL_ALPHA_BITS)       + "              " + offscreenCaps.getAlphaBits());
-                  System.err.println("GL_ACCUM_RED_BITS   " + getGLInteger(gl, GL.GL_ACCUM_RED_BITS)   + "              " + offscreenCaps.getAccumRedBits());
-                  System.err.println("GL_ACCUM_GREEN_BITS " + getGLInteger(gl, GL.GL_ACCUM_GREEN_BITS) + "              " + offscreenCaps.getAccumGreenBits());
-                  System.err.println("GL_ACCUM_BLUE_BITS  " + getGLInteger(gl, GL.GL_ACCUM_BLUE_BITS)  + "              " + offscreenCaps.getAccumBlueBits());
-                  System.err.println("GL_ACCUM_ALPHA_BITS " + getGLInteger(gl, GL.GL_ACCUM_ALPHA_BITS) + "              " + offscreenCaps.getAccumAlphaBits());
-                  System.err.println("GL_DEPTH_BITS       " + getGLInteger(gl, GL.GL_DEPTH_BITS)       + "              " + offscreenCaps.getDepthBits());
-                  System.err.println("GL_STENCIL_BITS     " + getGLInteger(gl, GL.GL_STENCIL_BITS)     + "              " + offscreenCaps.getStencilBits());
-                }
-                isInitialized = false;
-                shouldInitialize = true;
-                oglPipelineEnabled = false;
-                handleReshape = true;
-                j2dContext.release();
-                j2dContext.destroy();
-                j2dContext = null;
-                return;
-              }
-              j2dContext.release();
-            }
-
-            j2dContext.makeCurrent();
-            try {
-              captureJ2DState(j2dContext.getGL(), g);
-              Object curSurface = Java2D.getOGLSurfaceIdentifier(g);
-              if (curSurface != null) {
-                if (j2dSurface != curSurface) {
-                  if (joglContext != null) {
-                    joglContext.destroy();
-                    joglContext = null;
-                    joglDrawable = null;
-                    sendReshape = true;
-                    if (DEBUG) {
-                      System.err.println("Sending reshape because surface changed");
-                      System.err.println("New surface = " + curSurface);
-                    }
-                  }
-                  j2dSurface = curSurface;
-                }
-                if (joglContext == null) {
-                  if (GLDrawableFactory.getFactory().canCreateExternalGLDrawable()) {
-                    joglDrawable = GLDrawableFactory.getFactory().createExternalGLDrawable();
-                    joglContext = joglDrawable.createContext(shareWith);
-                  } else if (GLDrawableFactoryImpl.getFactoryImpl().canCreateContextOnJava2DSurface()) {
-                    // Mac OS X code path
-                    joglContext = GLDrawableFactoryImpl.getFactoryImpl().createContextOnJava2DSurface(g, shareWith);
-                  }
-                  if (DEBUG) {
-                    joglContext.setGL(new DebugGL(joglContext.getGL()));
-                  }
-
-                  if (Java2D.isFBOEnabled() &&
-                      Java2D.getOGLSurfaceType(g) == Java2D.FBOBJECT &&
-                      fbObjectWorkarounds) {
-                    createNewDepthBuffer = true;
-                  }
-                }
-                if (joglContext instanceof Java2DGLContext) {
-                  // Mac OS X code path
-                  ((Java2DGLContext) joglContext).setGraphics(g);
-                }
-
-                if (DEBUG && VERBOSE && Java2D.isFBOEnabled()) {
-                  System.err.print("-- Surface type: ");
-                  int surfaceType = Java2D.getOGLSurfaceType(g);
-                  if (surfaceType == Java2D.UNDEFINED) {
-                    System.err.println("UNDEFINED");
-                  } else if (surfaceType == Java2D.WINDOW) {
-                    System.err.println("WINDOW");
-                  } else if (surfaceType == Java2D.PBUFFER) {
-                    System.err.println("PBUFFER");
-                  } else if (surfaceType == Java2D.TEXTURE) {
-                    System.err.println("TEXTURE");
-                  } else if (surfaceType == Java2D.FLIP_BACKBUFFER) {
-                    System.err.println("FLIP_BACKBUFFER");
-                  } else if (surfaceType == Java2D.FBOBJECT) {
-                    System.err.println("FBOBJECT");
-                  } else {
-                    System.err.println("(Unknown surface type " + surfaceType + ")");
-                  }
-                }
-
-                drawableHelper.invokeGL(joglDrawable, joglContext, displayAction, initAction);
-              }
-            } finally {
-              j2dContext.release();
-            }
-          }
-        });
-    } else {
-      if (!hardwareAccelerationDisabled) {
-        pbuffer.display();
-      } else {
-        drawableHelper.invokeGL(offscreenDrawable, offscreenContext, displayAction, initAction);
-      }
-
-      if (offscreenImage != null) {
-        // Draw resulting image in one shot
-        g.drawImage(offscreenImage, 0, 0, offscreenImage.getWidth(), offscreenImage.getHeight(), this);
-      }
-    }
-  }
-
-  /** Overridden to track when this component is added to a container.
-      Subclasses which override this method must call
-      super.addNotify() in their addNotify() method in order to
-      function properly. <P>
-
-      <B>Overrides:</B>
-      <DL><DD><CODE>addNotify</CODE> in class <CODE>java.awt.Component</CODE></DD></DL> */
-  public void addNotify() {
-    super.addNotify();
-    shouldInitialize = true;
-    if (DEBUG) {
-      System.err.println("GLJPanel.addNotify()");
-    }
-  }
-
-  /** Overridden to track when this component is removed from a
-      container. Subclasses which override this method must call
-      super.removeNotify() in their removeNotify() method in order to
-      function properly. <P>
-
-      <B>Overrides:</B>
-      <DL><DD><CODE>removeNotify</CODE> in class <CODE>java.awt.Component</CODE></DD></DL> */
-  public void removeNotify() {
-    if (DEBUG) {
-      System.err.println("GLJPanel.removeNotify()");
-    }
-    if (oglPipelineEnabled) {
-      Java2D.invokeWithOGLContextCurrent(null, new Runnable() {
-          public void run() {
-            if (joglContext != null) {
-              joglContext.destroy();
-              joglContext = null;
-            }
-            joglDrawable = null;
-            if (j2dContext != null) {
-              j2dContext.destroy();
-              j2dContext = null;
-            }
-          }
-        });
-    } else {
-      if (!hardwareAccelerationDisabled) {
-        if (pbuffer != null) {
-          pbuffer.destroy();
-          pbuffer = null;
-        }
-      } else {
-        if (offscreenContext != null) {
-          offscreenContext.destroy();
-          offscreenContext = null;
-        }
-        if (offscreenDrawable != null) {
-          offscreenDrawable.destroy();
-          offscreenDrawable = null;
-        }
-      }
-    }
-    isInitialized = false;
-    super.removeNotify();
-  }
-
-  /** Overridden to cause {@link GLDrawableHelper#reshape} to be
-      called on all registered {@link GLEventListener}s. Subclasses
-      which override this method must call super.reshape() in
-      their reshape() method in order to function properly. <P>
-
-      <B>Overrides:</B>
-      <DL><DD><CODE>reshape</CODE> in class <CODE>java.awt.Component</CODE></DD></DL> */
-  public void reshape(int x, int y, int width, int height) {
-    super.reshape(x, y, width, height);
-
-    reshapeX = x;
-    reshapeY = y;
-    reshapeWidth = width;
-    reshapeHeight = height;
-    handleReshape = true;
-  }
-
-  public void setOpaque(boolean opaque) {
-    if (opaque != isOpaque()) {
-      if (offscreenImage != null) {
-        offscreenImage.flush();
-        offscreenImage = null;
-      }
-    }
-    super.setOpaque(opaque);
-  }
-
-  public void addGLEventListener(GLEventListener listener) {
-    drawableHelper.addGLEventListener(listener);
-  }
-
-  public void removeGLEventListener(GLEventListener listener) {
-    drawableHelper.removeGLEventListener(listener);
-  }
-
-  public GLContext createContext(GLContext shareWith) {
-    if (!hardwareAccelerationDisabled) {
-      return pbuffer.createContext(shareWith);
-    } else {
-      return offscreenDrawable.createContext(shareWith);
-    }
-  }
-
-  public void setRealized(boolean realized) {
-  }
-
-  public GLContext getContext() {
-    if (oglPipelineEnabled) {
-      return joglContext;
-    } else {
-      if (!hardwareAccelerationDisabled) {
-        // Workaround for crashes in NetBeans GUI builder
-        if (pbuffer == null && Beans.isDesignTime()) {
-          return null;
-        }
-        return pbuffer.getContext();
-      } else {
-        return offscreenContext;
-      }
-    }
-  }
-
-  public GL getGL() {
-    GLContext context = getContext();
-    return (context == null) ? null : context.getGL();
-  }
-
-  public void setGL(GL gl) {
-    GLContext context = getContext();
-    if (context != null) {
-      context.setGL(gl);
-    }
-  }
-
-  public void setAutoSwapBufferMode(boolean onOrOff) {
-    // In the current implementation this is a no-op. Both the pbuffer
-    // and pixmap based rendering paths use a single-buffered surface
-    // so swapping the buffers doesn't do anything. We also don't
-    // currently have the provision to skip copying the data to the
-    // Swing portion of the GLJPanel in any of the rendering paths.
-  }
-
-  public boolean getAutoSwapBufferMode() {
-    // In the current implementation this is a no-op. Both the pbuffer
-    // and pixmap based rendering paths use a single-buffered surface
-    // so swapping the buffers doesn't do anything. We also don't
-    // currently have the provision to skip copying the data to the
-    // Swing portion of the GLJPanel in any of the rendering paths.
-    return true;
-  }
-
-  public void swapBuffers() {
-    // In the current implementation this is a no-op. Both the pbuffer
-    // and pixmap based rendering paths use a single-buffered surface
-    // so swapping the buffers doesn't do anything. We also don't
-    // currently have the provision to skip copying the data to the
-    // Swing portion of the GLJPanel in any of the rendering paths.
-  }
-
-  /** For a translucent GLJPanel (one for which {@link #setOpaque
-      setOpaque}(false) has been called), indicates whether the
-      application should preserve the OpenGL color buffer
-      (GL_COLOR_BUFFER_BIT) for correct rendering of the GLJPanel and
-      underlying widgets which may show through portions of the
-      GLJPanel with alpha values less than 1.  Most Swing
-      implementations currently expect the GLJPanel to be completely
-      cleared (e.g., by <code>glClear(GL_COLOR_BUFFER_BIT |
-      GL_DEPTH_BUFFER_BIT)</code>), but for certain optimized Swing
-      implementations which use OpenGL internally, it may be possible
-      to perform OpenGL rendering using the GLJPanel into the same
-      OpenGL drawable as the Swing implementation uses. */
-  public boolean shouldPreserveColorBufferIfTranslucent() {
-    return oglPipelineEnabled;
-  }
-
-  public GLCapabilities getChosenGLCapabilities() {
-    if (oglPipelineEnabled) {
-      // FIXME: should do better than this; is it possible to using only platform-independent code?
-      return new GLCapabilities();
-    }
-
-    if (hardwareAccelerationDisabled) {
-      if (offscreenDrawable != null)
-        return offscreenDrawable.getChosenGLCapabilities();
-    } else {
-      if (pbuffer != null)
-        return pbuffer.getChosenGLCapabilities();
-    }
-    
-    return null;
-  }
-
-  //----------------------------------------------------------------------
-  // Internals only below this point
-  //
-
-  private void initialize() {
-    if (panelWidth == 0 ||
-        panelHeight == 0) {
-      // See whether we have a non-zero size yet and can go ahead with
-      // initialization
-      if (reshapeWidth == 0 ||
-          reshapeHeight == 0) {
-        return;
-      }
-
-      // Pull down reshapeWidth and reshapeHeight into panelWidth and
-      // panelHeight eagerly in order to complete initialization, and
-      // force a reshape later
-      panelWidth = reshapeWidth;
-      panelHeight = reshapeHeight;
-    }
-
-    if (!oglPipelineEnabled) {
-      // Initialize either the hardware-accelerated rendering path or
-      // the lightweight rendering path
-      if (!hardwareAccelerationDisabled) {
-        if (GLDrawableFactory.getFactory().canCreateGLPbuffer()) {
-          if (pbuffer != null) {
-            throw new InternalError("Creating pbuffer twice without destroying it (memory leak / correctness bug)");
-          }
-          try {
-            pbuffer = GLDrawableFactory.getFactory().createGLPbuffer(offscreenCaps,
-                                                                     null,
-                                                                     pbufferWidth,
-                                                                     pbufferHeight,
-                                                                     shareWith);
-            updater = new Updater();
-            pbuffer.addGLEventListener(updater);
-            shouldInitialize = false;
-            isInitialized = true;
-            return;
-          } catch (GLException e) {
-            if (DEBUG) {
-              e.printStackTrace();
-              System.err.println("GLJPanel: Falling back on software rendering because of problems creating pbuffer");
-            }
-            hardwareAccelerationDisabled = true;
-          }
-        } else {
-          if (DEBUG) {
-            System.err.println("GLJPanel: Falling back on software rendering because no pbuffer support");
-          }
-
-          // If the factory reports that it can't create a pbuffer,
-          // don't try again the next time, and fall through to the
-          // software rendering path
-          hardwareAccelerationDisabled = true;
-        }
-      }
-
-      if (softwareRenderingDisabled) {
-        throw new GLException("Fallback to software rendering disabled by user");
-      }
-
-      // Fall-through path: create an offscreen context instead
-      offscreenDrawable = GLDrawableFactoryImpl.getFactoryImpl().createOffscreenDrawable(offscreenCaps, chooser);
-      offscreenDrawable.setSize(Math.max(1, panelWidth), Math.max(1, panelHeight));
-      offscreenContext = (GLContextImpl) offscreenDrawable.createContext(shareWith);
-      offscreenContext.setSynchronized(true);
-    }
-    updater = new Updater();
-    shouldInitialize = false;
-    isInitialized = true;
-  }
-
-  private void handleReshape() {
-    readBackWidthInPixels = 0;
-    readBackHeightInPixels = 0;
-
-    panelWidth  = reshapeWidth;
-    panelHeight = reshapeHeight;
-
-    if (DEBUG) {
-      System.err.println("GLJPanel.handleReshape: (w,h) = (" +
-                         panelWidth + "," + panelHeight + ")");
-    }
-
-    sendReshape = true;
-
-    if (!oglPipelineEnabled) {
-      if (!hardwareAccelerationDisabled) {
-        // Use factor larger than 2 during shrinks for some hysteresis
-        float shrinkFactor = 2.5f;
-        if ((panelWidth > pbufferWidth           )       || (panelHeight > pbufferHeight) ||
-            (panelWidth < (pbufferWidth / shrinkFactor)) || (panelHeight < (pbufferHeight / shrinkFactor))) {
-          if (DEBUG) {
-            System.err.println("Resizing pbuffer from (" + pbufferWidth + ", " + pbufferHeight + ") " +
-                               " to fit (" + panelWidth + ", " + panelHeight + ")");
-          }
-          // Must destroy and recreate pbuffer to fit
-          if (pbuffer != null) {
-            // Watch for errors during pbuffer destruction (due to
-            // buggy / bad OpenGL drivers, in particular SiS) and fall
-            // back to software rendering
-            try {
-              pbuffer.destroy();
-            } catch (GLException e) {
-              hardwareAccelerationDisabled = true;
-              if (DEBUG) {
-                System.err.println("WARNING: falling back to software rendering due to bugs in OpenGL drivers");
-                e.printStackTrace();
-              }
-            }
-          }
-          pbuffer = null;
-          isInitialized = false;
-          pbufferWidth = getNextPowerOf2(panelWidth);
-          pbufferHeight = getNextPowerOf2(panelHeight);
-          if (DEBUG && !hardwareAccelerationDisabled) {
-            System.err.println("New pbuffer size is (" + pbufferWidth + ", " + pbufferHeight + ")");
-          }
-          initialize();
-        }
-
-        // It looks like NVidia's drivers (at least the ones on my
-        // notebook) are buggy and don't allow a rectangle of less than
-        // the pbuffer's width to be read...this doesn't really matter
-        // because it's the Graphics.drawImage() calls that are the
-        // bottleneck. Should probably make the size of the offscreen
-        // image be the exact size of the pbuffer to save some work on
-        // resize operations...
-        if (!hardwareAccelerationDisabled) {
-          readBackWidthInPixels  = pbufferWidth;
-          readBackHeightInPixels = panelHeight;
-        } else {
-          // Just disabled hardware acceleration during this resize operation; do a fixup
-          readBackWidthInPixels  = Math.max(1, panelWidth);
-          readBackHeightInPixels = Math.max(1, panelHeight);
-        }
-      } else {
-        offscreenContext.destroy();
-        offscreenDrawable.setSize(Math.max(1, panelWidth), Math.max(1, panelHeight));
-        readBackWidthInPixels  = Math.max(1, panelWidth);
-        readBackHeightInPixels = Math.max(1, panelHeight);
-      }
-
-      if (offscreenImage != null) {
-        offscreenImage.flush();
-        offscreenImage = null;
-      }
-    }
-
-    handleReshape = false;
-  }
-
-  // FIXME: it isn't clear whether this works any more given that
-  // we're accessing the GLDrawable inside of the GLPbuffer directly
-  // up in reshape() -- need to rethink and clean this up
-  class Updater implements GLEventListener {
-    private Graphics g;
-
-    public void setGraphics(Graphics g) {
-      this.g = g;
-    }
-
-    public void init(GLAutoDrawable drawable) {
-      if (oglPipelineEnabled) {
-        if (!preGL(g)) {
-          return;
-        }
-      }
-      drawableHelper.init(GLJPanel.this);
-      if (oglPipelineEnabled) {
-        postGL(g);
-      }
-    }
-
-    public void display(GLAutoDrawable drawable) {
-      if (oglPipelineEnabled) {
-        if (!preGL(g)) {
-          return;
-        }
-      }
-
-      if (sendReshape) {
-        if (DEBUG) {
-          System.err.println("glViewport(" + viewportX + ", " + viewportY + ", " + panelWidth + ", " + panelHeight + ")");
-        }
-        getGL().glViewport(viewportX, viewportY, panelWidth, panelHeight);
-        drawableHelper.reshape(GLJPanel.this, viewportX, viewportY, panelWidth, panelHeight);
-        sendReshape = false;
-      }
-
-      drawableHelper.display(GLJPanel.this);
-
-      if (!oglPipelineEnabled) {
-        // Must now copy pixels from offscreen context into surface
-        if (offscreenImage == null) {
-          if (panelWidth > 0 && panelHeight > 0) {
-            // It looks like NVidia's drivers (at least the ones on my
-            // notebook) are buggy and don't allow a sub-rectangle to be
-            // read from a pbuffer...this doesn't really matter because
-            // it's the Graphics.drawImage() calls that are the
-            // bottleneck
-
-            int awtFormat = 0;
-            int hwGLFormat = 0;
-            if (!hardwareAccelerationDisabled) {
-              // This seems to be a good choice on all platforms
-              hwGLFormat = GL.GL_UNSIGNED_INT_8_8_8_8_REV;
-            }
-
-            // Should be more flexible in these BufferedImage formats;
-            // perhaps see what the preferred image types are on the
-            // given platform
-            if (isOpaque()) {
-              awtFormat = BufferedImage.TYPE_INT_RGB;
-            } else {
-              awtFormat = BufferedImage.TYPE_INT_ARGB;
-            }
-
-            offscreenImage = new BufferedImage(panelWidth,
-                                               panelHeight,
-                                               awtFormat);
-            switch (awtFormat) {
-            case BufferedImage.TYPE_3BYTE_BGR:
-              glFormat = GL.GL_BGR;
-              glType   = GL.GL_UNSIGNED_BYTE;
-              readBackBytes = ByteBuffer.allocate(readBackWidthInPixels * readBackHeightInPixels * 3);
-              break;
-
-            case BufferedImage.TYPE_INT_RGB:
-            case BufferedImage.TYPE_INT_ARGB:
-              glFormat = GL.GL_BGRA;
-              glType   = (hardwareAccelerationDisabled
-                          ? offscreenContext.getOffscreenContextPixelDataType()
-                          : hwGLFormat);
-              readBackInts = IntBuffer.allocate(readBackWidthInPixels * readBackHeightInPixels);
-              break;
-
-            default:
-              // FIXME: Support more off-screen image types (current
-              // offscreen context implementations don't use others, and
-              // some of the OpenGL formats aren't supported in the 1.1
-              // headers, which we're currently using)
-              throw new GLException("Unsupported offscreen image type " + awtFormat);
-            }
-          }
-        }
-
-        if (offscreenImage != null) {
-          GL gl = getGL();
-          // Save current modes
-          gl.glGetIntegerv(GL.GL_PACK_SWAP_BYTES,    swapbytes, 0);
-          gl.glGetIntegerv(GL.GL_PACK_ROW_LENGTH,    rowlength, 0);
-          gl.glGetIntegerv(GL.GL_PACK_SKIP_ROWS,     skiprows, 0);
-          gl.glGetIntegerv(GL.GL_PACK_SKIP_PIXELS,   skippixels, 0);
-          gl.glGetIntegerv(GL.GL_PACK_ALIGNMENT,     alignment, 0);
-
-          gl.glPixelStorei(GL.GL_PACK_SWAP_BYTES,    GL.GL_FALSE);
-          gl.glPixelStorei(GL.GL_PACK_ROW_LENGTH,    readBackWidthInPixels);
-          gl.glPixelStorei(GL.GL_PACK_SKIP_ROWS,     0);
-          gl.glPixelStorei(GL.GL_PACK_SKIP_PIXELS,   0);
-          gl.glPixelStorei(GL.GL_PACK_ALIGNMENT,     1);
-
-          // Actually read the pixels.
-          gl.glReadBuffer(GL.GL_FRONT);
-          if (readBackBytes != null) {
-            gl.glReadPixels(0, 0, readBackWidthInPixels, readBackHeightInPixels, glFormat, glType, readBackBytes);
-          } else if (readBackInts != null) {
-            gl.glReadPixels(0, 0, readBackWidthInPixels, readBackHeightInPixels, glFormat, glType, readBackInts);
-          }
-
-          // Restore saved modes.
-          gl.glPixelStorei(GL.GL_PACK_SWAP_BYTES,  swapbytes[0]);
-          gl.glPixelStorei(GL.GL_PACK_ROW_LENGTH,  rowlength[0]);
-          gl.glPixelStorei(GL.GL_PACK_SKIP_ROWS,   skiprows[0]);
-          gl.glPixelStorei(GL.GL_PACK_SKIP_PIXELS, skippixels[0]);
-          gl.glPixelStorei(GL.GL_PACK_ALIGNMENT,   alignment[0]);
-
-          if (readBackBytes != null || readBackInts != null) {
-            // Copy temporary data into raster of BufferedImage for faster
-            // blitting Note that we could avoid this copy in the cases
-            // where !offscreenContext.offscreenImageNeedsVerticalFlip(),
-            // but that's the software rendering path which is very slow
-            // anyway
-            Object src  = null;
-            Object dest = null;
-            int    srcIncr  = 0;
-            int    destIncr = 0;
-
-            if (readBackBytes != null) {
-              src = readBackBytes.array();
-              dest = ((DataBufferByte) offscreenImage.getRaster().getDataBuffer()).getData();
-              srcIncr = readBackWidthInPixels * 3;
-              destIncr = offscreenImage.getWidth() * 3;
-            } else {
-              src = readBackInts.array();
-              dest = ((DataBufferInt) offscreenImage.getRaster().getDataBuffer()).getData();
-              srcIncr = readBackWidthInPixels;
-              destIncr = offscreenImage.getWidth();
-            }
-
-            if (!hardwareAccelerationDisabled ||
-                offscreenContext.offscreenImageNeedsVerticalFlip()) {
-              int srcPos = 0;
-              int destPos = (offscreenImage.getHeight() - 1) * destIncr;
-              for (; destPos >= 0; srcPos += srcIncr, destPos -= destIncr) {
-                System.arraycopy(src, srcPos, dest, destPos, destIncr);
-              }
-            } else {
-              int srcPos = 0;
-              int destEnd = destIncr * offscreenImage.getHeight();
-              for (int destPos = 0; destPos < destEnd; srcPos += srcIncr, destPos += destIncr) {
-                System.arraycopy(src, srcPos, dest, destPos, destIncr);
-              }
-            }
-
-	    // Note: image will be drawn back in paintComponent() for
-	    // correctness on all platforms
-          }
-        }
-      } else {
-        // Cause OpenGL pipeline to flush its results because
-        // otherwise it's possible we will buffer up multiple frames'
-        // rendering results, resulting in apparent mouse lag
-        GL gl = getGL();
-        gl.glFinish();
-
-        postGL(g);
-      }
-    }
-
-    public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
-      // This is handled above and dispatched directly to the appropriate context
-    }
-
-    public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) {
-    }
-  }
-
-  class InitAction implements Runnable {
-    public void run() {
-      updater.init(GLJPanel.this);
-    }
-  }
-  private InitAction initAction = new InitAction();
-
-  class DisplayAction implements Runnable {
-    public void run() {
-      updater.display(GLJPanel.this);
-    }
-  }
-  private DisplayAction displayAction = new DisplayAction();
-
-  // This one is used exclusively in the non-hardware-accelerated case
-  class SwapBuffersAction implements Runnable {
-    public void run() {
-      offscreenDrawable.swapBuffers();
-    }
-  }
-  private SwapBuffersAction swapBuffersAction = new SwapBuffersAction();
-
-  class PaintImmediatelyAction implements Runnable {
-    public void run() {
-      paintImmediately(0, 0, getWidth(), getHeight());
-    }
-  }
-  private PaintImmediatelyAction paintImmediatelyAction = new PaintImmediatelyAction();
-
-  private int getNextPowerOf2(int number) {
-    // Workaround for problems where 0 width or height are transiently
-    // seen during layout
-    if (number == 0) {
-      return 2;
-    }
-
-    if (((number-1) & number) == 0) {
-      //ex: 8 -> 0b1000; 8-1=7 -> 0b0111; 0b1000&0b0111 == 0
-      return number;
-    }
-    int power = 0;
-    while (number > 0) {
-      number = number>>1;
-      power++;
-    }
-    return (1<<power);
-  }
-
-  private int getGLInteger(GL gl, int which) {
-    int[] tmp = new int[1];
-    gl.glGetIntegerv(which, tmp, 0);
-    return tmp[0];
-  }
-}