Bug 904 - GLJPanel: Allow user to skip isGLOriented() based vertical flip of offscreen backend

Add new GLJPanel method 'setSkipGLOrientationVerticalFlip(..)':

  /**
   * Set skipping {@link #isGLOriented()} based vertical flip,
   * which usually is required by the offscreen backend,
   * see details about <a href="#verticalFlip">vertical flip</a>
   * and <a href="#fboGLSLVerticalFlip">FBO / GLSL vertical flip</a>.
   * <p>
   * If set to <code>true</code>, user needs to flip the OpenGL rendered scene
   * <i>if {@link #isGLOriented()} == true</i>, e.g. via the PMV matrix.<br/>
   * See constraints of {@link #isGLOriented()}.
   * </p>
   */
  public final void setSkipGLOrientationVerticalFlip(boolean v) {

GearsES2: Handles 'flipVerticalInGLOrientation'

Unit test 'TestPerf001GLJPanelInit02AWT' validates and measures performance.

5 files changed, 213 insertions, 91 deletions

diff --git a/make/scripts/tests-win.bat b/make/scripts/tests-win.bat
index 023e7dc6e..2fd401f00 100755
--- a/make/scripts/tests-win.bat
+++ b/make/scripts/tests-win.bat
@@ -24,7 +24,7 @@ REM scripts\java-win.bat com.jogamp.opengl.test.junit.jogl.demos.es2.TexCubeES2
 
 REM scripts\java-win.bat com.jogamp.opengl.test.junit.jogl.perf.TestPerf001RawInit00NEWT %*
 REM scripts\java-win.bat com.jogamp.opengl.test.junit.jogl.perf.TestPerf001GLJPanelInit01AWT %*
-REM scripts\java-win.bat com.jogamp.opengl.test.junit.jogl.perf.TestPerf001GLJPanelInit02AWT %*
+scripts\java-win.bat com.jogamp.opengl.test.junit.jogl.perf.TestPerf001GLJPanelInit02AWT %*
 REM scripts\java-win.bat com.jogamp.opengl.test.junit.jogl.perf.TestPerf001GLWindowInit03NEWT %*
 
 REM scripts\java-win.bat com.jogamp.opengl.test.junit.jogl.tile.TestTiledRendering1GL2NEWT %*
@@ -138,7 +138,7 @@ REM scripts\java-win.bat com.jogamp.opengl.test.junit.newt.parenting.TestTranslu
 REM scripts\java-win.bat com.jogamp.opengl.test.junit.newt.parenting.TestTranslucentChildWindowBug632NEWT %*
 
 REM scripts\java-win.bat com.jogamp.opengl.test.junit.newt.parenting.TestParentingFocus01SwingAWTRobot %*
-scripts\java-win.bat com.jogamp.opengl.test.junit.newt.parenting.TestParentingFocus02SwingAWTRobot %*
+REM scripts\java-win.bat com.jogamp.opengl.test.junit.newt.parenting.TestParentingFocus02SwingAWTRobot %*
 REM scripts\java-win.bat com.jogamp.opengl.test.junit.newt.parenting.TestParentingFocus03KeyTraversalAWT %*
 
 REM scripts\java-win.bat com.jogamp.opengl.test.junit.jogl.swt.TestSWTAccessor03AWTGLn %*
diff --git a/make/scripts/tests.sh b/make/scripts/tests.sh
index b7db47e11..bed169737 100644
--- a/make/scripts/tests.sh
+++ b/make/scripts/tests.sh
@@ -350,7 +350,7 @@ function testawtswt() {
 #
 #testnoawt com.jogamp.opengl.test.junit.jogl.perf.TestPerf001RawInit00NEWT $*
 #testawt com.jogamp.opengl.test.junit.jogl.perf.TestPerf001GLJPanelInit01AWT $*
-#testawt com.jogamp.opengl.test.junit.jogl.perf.TestPerf001GLJPanelInit02AWT $*
+testawt com.jogamp.opengl.test.junit.jogl.perf.TestPerf001GLJPanelInit02AWT $*
 #testnoawt com.jogamp.opengl.test.junit.jogl.perf.TestPerf001GLWindowInit03NEWT $*
 
 #
@@ -504,7 +504,7 @@ function testawtswt() {
 #testawt com.jogamp.opengl.test.junit.jogl.awt.TestBug816OSXCALayerPos03bB849AWT $*
 #testawt com.jogamp.opengl.test.junit.jogl.awt.TestBug816OSXCALayerPos03cB849AWT $*
 #testawt com.jogamp.opengl.test.junit.jogl.awt.TestBug816JTabbedPanelVisibilityB849B878AWT $*
-testawt com.jogamp.opengl.test.junit.jogl.awt.TestBug816GLCanvasFrameHoppingB849B889AWT $*
+#testawt com.jogamp.opengl.test.junit.jogl.awt.TestBug816GLCanvasFrameHoppingB849B889AWT $*
 #testawt com.jogamp.opengl.test.junit.jogl.awt.TestBug816OSXCALayerPos04aAWT $*
 #testawt com.jogamp.opengl.test.junit.jogl.awt.TestBug816OSXCALayerPos04bAWT $*
 #testawt com.jogamp.opengl.test.junit.jogl.awt.TestBug675BeansInDesignTimeAWT $*
diff --git a/src/jogl/classes/javax/media/opengl/awt/GLJPanel.java b/src/jogl/classes/javax/media/opengl/awt/GLJPanel.java
index 8dd335267..011b14321 100644
--- a/src/jogl/classes/javax/media/opengl/awt/GLJPanel.java
+++ b/src/jogl/classes/javax/media/opengl/awt/GLJPanel.java
@@ -121,16 +121,17 @@ import com.jogamp.opengl.util.texture.TextureState;
     using {@link GLDrawableFactory#createOffscreenDrawable(AbstractGraphicsDevice, GLCapabilitiesImmutable, GLCapabilitiesChooser, int, int) GLDrawableFactory.createOffscreenDrawable(..)}.<br/>
     </p>
     <p>
-    In case FBO is used and GLSL is available, a fragment shader is utilized
-    to flip the FBO texture vertically. This hardware-accelerated step can be disabled via system property <code>jogl.gljpanel.noglsl</code>.
-    See <a href="#fboGLSLVerticalFlip">details here</a>.
+    <a name="verticalFlip">
+    In case</a> the drawable {@link #isGLOriented()} and {@link #setSkipGLOrientationVerticalFlip(boolean) vertical flip is not skipped},
+    this component performs the required vertical flip to bring the content from OpenGL's orientation into AWT's orientation.
+    See details about <a href="#fboGLSLVerticalFlip">FBO and GLSL vertical flipping</a>.
     </p>
     <p>
     The OpenGL path is concluded by copying the rendered pixels an {@link BufferedImage} via {@link GL#glReadPixels(int, int, int, int, int, int, java.nio.Buffer) glReadPixels(..)}
     for later Java2D composition.
     </p>
     <p>
-    In case the above mentioned GLSL vertical-flipping is not performed,
+    In case {@link #setSkipGLOrientationVerticalFlip(boolean) vertical-flip is not skipped} and <a href="#fboGLSLVerticalFlip">GLSL based vertical-flip</a> is not performed,
     {@link System#arraycopy(Object, int, Object, int, int) System.arraycopy(..)} is used line by line.
     This step causes more CPU load per frame and is not hardware-accelerated.
     </p>
@@ -143,8 +144,12 @@ import com.jogamp.opengl.util.texture.TextureState;
  *  </P>
  *
     <a name="fboGLSLVerticalFlip"><h5>FBO / GLSL Vertical Flip</h5></a>
+    In case FBO is used and GLSL is available and {@link #setSkipGLOrientationVerticalFlip(boolean) vertical flip is not skipped}, a fragment shader is utilized
+    to flip the FBO texture vertically. This hardware-accelerated step can be disabled via system property <code>jogl.gljpanel.noglsl</code>.
+    <p>
     The FBO / GLSL code path uses one texture-unit and binds the FBO texture to it's active texture-target,
     see {@link #setTextureUnit(int)} and {@link #getTextureUnit()}.
+    </p>
     <p>
     The active and dedicated texture-unit's {@link GL#GL_TEXTURE_2D} state is preserved via {@link TextureState}.
     See also {@link Texture#textureCallOrder Order of Texture Commands}.
@@ -248,6 +253,8 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
   // The backend in use
   private volatile Backend backend;
 
+  private boolean skipGLOrientationVerticalFlip = false;
+
   // Used by all backends either directly or indirectly to hook up callbacks
   private final Updater updater = new Updater();
 
@@ -648,7 +655,7 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
               GLDrawableUtil.swapGLContextAndAllGLEventListener(GLJPanel.this, printGLAD);
               printDrawable = printGLAD.getDelegatedDrawable();
           }
-          printAWTTiles.setIsGLOriented(printGLAD.isGLOriented());
+          printAWTTiles.setIsGLOriented( !GLJPanel.this.skipGLOrientationVerticalFlip && printGLAD.isGLOriented() );
           printAWTTiles.renderer.setTileSize(printDrawable.getWidth(), printDrawable.getHeight(), 0);
           printAWTTiles.renderer.attachAutoDrawable(printGLAD);
           if( DEBUG ) {
@@ -981,6 +988,15 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
     return oglPipelineUsable();
   }
 
+  /**
+   * {@inheritDoc}
+   * <p>
+   * Method returns a valid value only <i>after</i>
+   * the backend has been initialized, either {@link #initializeBackend(boolean) eagerly}
+   * or manually via the first display call.<br/>
+   * Method always returns a valid value when called from within a {@link GLEventListener}.
+   * </p>
+   */
   @Override
   public boolean isGLOriented() {
     final Backend b = backend;
@@ -990,6 +1006,25 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
     return b.getDrawable().isGLOriented();
   }
 
+  /**
+   * Set skipping {@link #isGLOriented()} based vertical flip,
+   * which usually is required by the offscreen backend,
+   * see details about <a href="#verticalFlip">vertical flip</a>
+   * and <a href="#fboGLSLVerticalFlip">FBO / GLSL vertical flip</a>.
+   * <p>
+   * If set to <code>true</code>, user needs to flip the OpenGL rendered scene
+   * <i>if {@link #isGLOriented()} == true</i>, e.g. via the PMV matrix.<br/>
+   * See constraints of {@link #isGLOriented()}.
+   * </p>
+   */
+  public final void setSkipGLOrientationVerticalFlip(boolean v) {
+      skipGLOrientationVerticalFlip = v;
+  }
+  /** See {@link #setSkipGLOrientationVerticalFlip(boolean)}. */
+  public final boolean getSkipGLOrientationVerticalFlip() {
+      return skipGLOrientationVerticalFlip;
+  }
+
   @Override
   public GLCapabilitiesImmutable getChosenGLCapabilities() {
     final Backend b = backend;
@@ -1372,10 +1407,10 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
     }
 
     @Override
-    public boolean isUsingOwnLifecycle() { return false; }
+    public final boolean isUsingOwnLifecycle() { return false; }
 
     @Override
-    public void initialize() {
+    public final void initialize() {
       if(DEBUG) {
           System.err.println(getThreadName()+": OffscreenBackend: initialize()");
       }
@@ -1395,7 +1430,7 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
           if( GLContext.CONTEXT_NOT_CURRENT < offscreenContext.makeCurrent() ) {
               isInitialized = true;
               final GL gl = offscreenContext.getGL();
-              flipVertical = offscreenDrawable.isGLOriented();
+              flipVertical = !GLJPanel.this.skipGLOrientationVerticalFlip && offscreenDrawable.isGLOriented();
               final GLCapabilitiesImmutable chosenCaps = offscreenDrawable.getChosenGLCapabilities();
               offscreenIsFBO = chosenCaps.isFBO();
               final boolean glslCompliant = !offscreenContext.hasRendererQuirk(GLRendererQuirks.GLSLNonCompliant);
@@ -1454,7 +1489,7 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
     }
 
     @Override
-    public void destroy() {
+    public final void destroy() {
       if(DEBUG) {
           System.err.println(getThreadName()+": OffscreenBackend: destroy() - offscreenContext: "+(null!=offscreenContext)+" - offscreenDrawable: "+(null!=offscreenDrawable));
       }
@@ -1502,7 +1537,7 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
     }
 
     @Override
-    public void setOpaque(boolean opaque) {
+    public final void setOpaque(boolean opaque) {
       if ( opaque != isOpaque() && !useSingletonBuffer ) {
           pixelBuffer.dispose();
           pixelBuffer = null;
@@ -1511,13 +1546,13 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
     }
 
     @Override
-    public boolean preGL(Graphics g) {
+    public final boolean preGL(Graphics g) {
       // Empty in this implementation
       return true;
     }
 
     @Override
-    public void postGL(Graphics g, boolean isDisplay) {
+    public final void postGL(Graphics g, boolean isDisplay) {
       if (isDisplay) {
         final GL gl = offscreenContext.getGL();
 
@@ -1671,7 +1706,7 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
     }
 
     @Override
-    public int getTextureUnit() {
+    public final int getTextureUnit() {
         if(null != glslTextureRaster && null != offscreenDrawable) { // implies flippedVertical
             return ((GLFBODrawable)offscreenDrawable).getTextureUnit();
         }
@@ -1679,7 +1714,7 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
     }
 
     @Override
-    public void doPaintComponent(Graphics g) {
+    public final void doPaintComponent(Graphics g) {
       helper.invokeGL(offscreenDrawable, offscreenContext, updaterDisplayAction, updaterInitAction);
 
       if ( null != alignedImage ) {
@@ -1689,12 +1724,12 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
     }
 
     @Override
-    public void doPlainPaint() {
+    public final void doPlainPaint() {
       helper.invokeGL(offscreenDrawable, offscreenContext, updaterPlainDisplayAction, updaterInitAction);
     }
 
     @Override
-    public boolean handleReshape() {
+    public final boolean handleReshape() {
         GLDrawableImpl _drawable = offscreenDrawable;
         {
             final GLDrawableImpl _drawableNew = GLDrawableHelper.resizeOffscreenDrawable(_drawable, offscreenContext, panelWidth, panelHeight);
@@ -1725,27 +1760,27 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
     }
 
     @Override
-    public GLContext createContext(GLContext shareWith) {
+    public final GLContext createContext(GLContext shareWith) {
       return (null != offscreenDrawable) ? offscreenDrawable.createContext(shareWith) : null;
     }
 
     @Override
-    public void setContext(GLContext ctx) {
+    public final void setContext(GLContext ctx) {
       offscreenContext=(GLContextImpl)ctx;
     }
 
     @Override
-    public GLContext getContext() {
+    public final GLContext getContext() {
       return offscreenContext;
     }
 
     @Override
-    public GLDrawable getDrawable() {
+    public final GLDrawable getDrawable() {
         return offscreenDrawable;
     }
 
     @Override
-    public GLCapabilitiesImmutable getChosenGLCapabilities() {
+    public final GLCapabilitiesImmutable getChosenGLCapabilities() {
       if (offscreenDrawable == null) {
         return null;
       }
@@ -1753,7 +1788,7 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
     }
 
     @Override
-    public GLProfile getGLProfile() {
+    public final GLProfile getGLProfile() {
       if (offscreenDrawable == null) {
         return null;
       }
@@ -1811,10 +1846,10 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
     private GraphicsConfiguration workaroundConfig;
 
     @Override
-    public boolean isUsingOwnLifecycle() { return true; }
+    public final boolean isUsingOwnLifecycle() { return true; }
 
     @Override
-    public void initialize() {
+    public final void initialize() {
       if(DEBUG) {
           System.err.println(getThreadName()+": J2DOGL: initialize()");
       }
@@ -1823,7 +1858,7 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
     }
 
     @Override
-    public void destroy() {
+    public final void destroy() {
       Java2D.invokeWithOGLContextCurrent(null, new Runnable() {
           @Override
           public void run() {
@@ -1844,12 +1879,12 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
     }
 
     @Override
-    public void setOpaque(boolean opaque) {
+    public final void setOpaque(boolean opaque) {
       // Empty in this implementation
     }
 
     @Override
-    public GLContext createContext(GLContext shareWith) {
+    public final GLContext createContext(GLContext shareWith) {
       if(null != shareWith) {
           throw new GLException("J2DOGLBackend cannot create context w/ additional shared context, since it already needs to share the context w/ J2D.");
       }
@@ -1857,43 +1892,43 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
     }
 
     @Override
-    public void setContext(GLContext ctx) {
+    public final void setContext(GLContext ctx) {
         joglContext=ctx;
     }
 
     @Override
-    public GLContext getContext() {
+    public final GLContext getContext() {
       return joglContext;
     }
 
     @Override
-    public GLDrawable getDrawable() {
+    public final GLDrawable getDrawable() {
         return joglDrawable;
     }
 
     @Override
-    public int getTextureUnit() { return -1; }
+    public final int getTextureUnit() { return -1; }
 
     @Override
-    public GLCapabilitiesImmutable getChosenGLCapabilities() {
+    public final GLCapabilitiesImmutable getChosenGLCapabilities() {
       // FIXME: should do better than this; is it possible to using only platform-independent code?
       return new GLCapabilities(null);
     }
 
     @Override
-    public GLProfile getGLProfile() {
+    public final GLProfile getGLProfile() {
       // FIXME: should do better than this; is it possible to using only platform-independent code?
       return GLProfile.getDefault(GLProfile.getDefaultDevice());
     }
 
     @Override
-    public boolean handleReshape() {
+    public final boolean handleReshape() {
       // Empty in this implementation
       return true;
     }
 
     @Override
-    public boolean preGL(Graphics g) {
+    public final boolean preGL(Graphics g) {
       final GL2 gl = joglContext.getGL().getGL2();
       // Set up needed state in JOGL context from Java2D context
       gl.glEnable(GL2.GL_SCISSOR_TEST);
@@ -2030,7 +2065,7 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
     }
 
     @Override
-    public void postGL(Graphics g, boolean isDisplay) {
+    public final void postGL(Graphics g, boolean isDisplay) {
       // 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
@@ -2047,7 +2082,7 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
     }
 
     @Override
-    public void doPaintComponent(final Graphics g) {
+    public final void doPaintComponent(final Graphics g) {
       // 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
@@ -2196,11 +2231,11 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
     }
 
     @Override
-    public void doPlainPaint() {
+    public final void doPlainPaint() {
       helper.invokeGL(joglDrawable, joglContext, updaterPlainDisplayAction, updaterInitAction);
     }
 
-    private void captureJ2DState(GL gl, Graphics g) {
+    private final void captureJ2DState(GL gl, Graphics g) {
       gl.glGetIntegerv(GL2.GL_DRAW_BUFFER, drawBuffer, 0);
       gl.glGetIntegerv(GL2.GL_READ_BUFFER, readBuffer, 0);
       if (Java2D.isFBOEnabled() &&
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/demos/es2/GearsES2.java b/src/test/com/jogamp/opengl/test/junit/jogl/demos/es2/GearsES2.java
index 3d7db0465..ff5de7cb0 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/demos/es2/GearsES2.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/demos/es2/GearsES2.java
@@ -61,6 +61,7 @@ public class GearsES2 implements GLEventListener, TileRendererBase.TileRendererL
     private GLUniformData pmvMatrixUniform = null;
     private GLUniformData colorU = null;
     private float view_rotx = 20.0f, view_roty = 30.0f;
+    private boolean flipVerticalInGLOrientation = false;
 
     private final float view_rotz = 0.0f;
     private float panX = 0.0f, panY = 0.0f, panZ=0.0f;
@@ -119,6 +120,7 @@ public class GearsES2 implements GLEventListener, TileRendererBase.TileRendererL
     public void setDoRotation(boolean rotate) { this.doRotate = rotate; }
     public void setClearBuffers(boolean v) { clearBuffers = v; }
     public void setVerbose(boolean v) { verbose = v; }
+    public void setFlipVerticalInGLOrientation(boolean v) { flipVerticalInGLOrientation=v; }
 
     public void setPMVUseBackingArray(boolean pmvUseBackingArray) {
         this.pmvUseBackingArray = pmvUseBackingArray;
@@ -186,10 +188,10 @@ public class GearsES2 implements GLEventListener, TileRendererBase.TileRendererL
             drawable.setGLEventListenerInitState(this, false);
             return;
         }
-        System.err.println(Thread.currentThread()+" GearsES2.init "+sid()+": tileRendererInUse "+tileRendererInUse);
 
         final GL2ES2 gl = drawable.getGL().getGL2ES2();
         if(verbose) {
+            System.err.println(Thread.currentThread()+" GearsES2.init "+sid()+": tileRendererInUse "+tileRendererInUse);
             System.err.println("GearsES2 init "+sid()+" on "+Thread.currentThread());
             System.err.println("Chosen GLCapabilities: " + drawable.getChosenGLCapabilities());
             System.err.println("INIT GL IS: " + gl.getClass().getName());
@@ -307,7 +309,9 @@ public class GearsES2 implements GLEventListener, TileRendererBase.TileRendererL
         gl.glFinish(); // make sure .. for shared context (impacts OSX 10.9)
 
         isInit = true;
-        System.err.println(Thread.currentThread()+" GearsES2.init "+sid()+" FIN "+this);
+        if(verbose) {
+            System.err.println(Thread.currentThread()+" GearsES2.init "+sid()+" FIN "+this);
+        }
     }
 
     public final boolean isInit() { return isInit; }
@@ -343,7 +347,9 @@ public class GearsES2 implements GLEventListener, TileRendererBase.TileRendererL
 
     void reshapeImpl(GL2ES2 gl, int tileX, int tileY, int tileWidth, int tileHeight, int imageWidth, int imageHeight) {
         final boolean msaa = gl.getContext().getGLDrawable().getChosenGLCapabilities().getSampleBuffers();
-        System.err.println(Thread.currentThread()+" GearsES2.reshape "+sid()+" "+tileX+"/"+tileY+" "+tileWidth+"x"+tileHeight+" of "+imageWidth+"x"+imageHeight+", swapInterval "+swapInterval+", drawable 0x"+Long.toHexString(gl.getContext().getGLDrawable().getHandle())+", msaa "+msaa+", tileRendererInUse "+tileRendererInUse);
+        if(verbose) {
+            System.err.println(Thread.currentThread()+" GearsES2.reshape "+sid()+" "+tileX+"/"+tileY+" "+tileWidth+"x"+tileHeight+" of "+imageWidth+"x"+imageHeight+", swapInterval "+swapInterval+", drawable 0x"+Long.toHexString(gl.getContext().getGLDrawable().getHandle())+", msaa "+msaa+", tileRendererInUse "+tileRendererInUse);
+        }
 
         if( !gl.hasGLSL() ) {
             return;
@@ -388,6 +394,9 @@ public class GearsES2 implements GLEventListener, TileRendererBase.TileRendererL
         pmvMatrix.glMatrixMode(PMVMatrix.GL_MODELVIEW);
         pmvMatrix.glLoadIdentity();
         pmvMatrix.glTranslatef(0.0f, 0.0f, -40.0f);
+        if(flipVerticalInGLOrientation && gl.getContext().getGLDrawable().isGLOriented() ) {
+            pmvMatrix.glRotatef(180f, 1.0f, 0.0f, 0.0f);
+        }
         st.uniform(gl, pmvMatrixUniform);
         st.useProgram(gl, false);
 
@@ -399,7 +408,9 @@ public class GearsES2 implements GLEventListener, TileRendererBase.TileRendererL
     public void dispose(GLAutoDrawable drawable) {
         if( !isInit ) { return; }
         isInit = false;
-        System.err.println(Thread.currentThread()+" GearsES2.dispose "+sid()+": tileRendererInUse "+tileRendererInUse);
+        if(verbose) {
+            System.err.println(Thread.currentThread()+" GearsES2.dispose "+sid()+": tileRendererInUse "+tileRendererInUse);
+        }
         final Object upstreamWidget = drawable.getUpstreamWidget();
         if (upstreamWidget instanceof Window) {
             final Window window = (Window) upstreamWidget;
@@ -425,7 +436,9 @@ public class GearsES2 implements GLEventListener, TileRendererBase.TileRendererL
         st.destroy(gl);
         st = null;
 
-        System.err.println(Thread.currentThread()+" GearsES2.dispose "+sid()+" FIN");
+        if(verbose) {
+            System.err.println(Thread.currentThread()+" GearsES2.dispose "+sid()+" FIN");
+        }
     }
 
     @Override
@@ -482,9 +495,10 @@ public class GearsES2 implements GLEventListener, TileRendererBase.TileRendererL
         st.useProgram(gl, true);
         pmvMatrix.glPushMatrix();
         pmvMatrix.glTranslatef(panX, panY, panZ);
-        pmvMatrix.glRotatef(view_rotx, 1.0f, 0.0f, 0.0f);
-        pmvMatrix.glRotatef(view_roty, 0.0f, 1.0f, 0.0f);
-        pmvMatrix.glRotatef(view_rotz, 0.0f, 0.0f, 1.0f);
+        final float flipVF = ( flipVerticalInGLOrientation && drawable.isGLOriented() ) ? -1f : 1f;
+        pmvMatrix.glRotatef(flipVF*view_rotx, 1.0f, 0.0f, 0.0f);
+        pmvMatrix.glRotatef(flipVF*view_roty, 0.0f, 1.0f, 0.0f);
+        pmvMatrix.glRotatef(flipVF*view_rotz, 0.0f, 0.0f, 1.0f);
 
         gear1.draw(gl, -3.0f, -2.0f,  1f * angle -    0f);
         gear2.draw(gl,  3.1f, -2.0f, -2f * angle -  9.0f);
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/perf/TestPerf001GLJPanelInit02AWT.java b/src/test/com/jogamp/opengl/test/junit/jogl/perf/TestPerf001GLJPanelInit02AWT.java
index 18ec289d8..3133a449d 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/perf/TestPerf001GLJPanelInit02AWT.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/perf/TestPerf001GLJPanelInit02AWT.java
@@ -69,10 +69,16 @@ public class TestPerf001GLJPanelInit02AWT extends UITestCase {
         GLProfile.initSingleton();
     }
 
-    public void test(final GLCapabilitiesImmutable caps, final boolean useGears, final int width, final int height,
-                     final int frameCount, final boolean initMT, final boolean useGLJPanel, final boolean useGLCanvas,
-                     final boolean useAnim, final boolean overlap) {
-        final GLAnimatorControl animator = useAnim ? new Animator() : null;
+    public void test(final GLCapabilitiesImmutable caps, final boolean useGears, final boolean skipGLOrientationVerticalFlip, final int width,
+                     final int height, final int frameCount, final boolean initMT, final boolean useGLJPanel,
+                     final boolean useSwingDoubleBuffer, final boolean useGLCanvas, final boolean useAnim, final boolean overlap) {
+        final GLAnimatorControl animator;
+        if( useAnim ) {
+            animator = new Animator();
+            animator.start();
+        } else {
+            animator = null;
+        }
         final int eWidth, eHeight;
         {
             final int cols = (int)Math.round(Math.sqrt(frameCount));
@@ -81,7 +87,7 @@ public class TestPerf001GLJPanelInit02AWT extends UITestCase {
             eHeight = height/rows-32;
         }
         System.err.println("Frame size: "+width+"x"+height+" -> "+frameCount+" x "+eWidth+"x"+eHeight+", overlap "+overlap);
-
+        System.err.println("SkipGLOrientationVerticalFlip "+skipGLOrientationVerticalFlip+", useGears "+useGears+", initMT "+initMT+", useAnim "+useAnim);
         final JFrame[] frame = new JFrame[frameCount];
         final long[] t = new long[10];
         if( wait ) {
@@ -106,9 +112,10 @@ public class TestPerf001GLJPanelInit02AWT extends UITestCase {
                         }
                         final JPanel panel = new JPanel();
                         panel.setLayout(new BorderLayout());
+                        panel.setDoubleBuffered(useSwingDoubleBuffer);
                         // panel.setBounds(0, 0, width, height);
                         final Dimension eSize = new Dimension(eWidth, eHeight);
-                        final GLAutoDrawable glad = useGLJPanel ? createGLJPanel(initMT, caps, useGears, animator, eSize) : ( useGLCanvas ? createGLCanvas(caps, useGears, animator, eSize) : null );
+                        final GLAutoDrawable glad = useGLJPanel ? createGLJPanel(initMT, useSwingDoubleBuffer, caps, useGears, skipGLOrientationVerticalFlip, animator, eSize) : ( useGLCanvas ? createGLCanvas(caps, useGears, animator, eSize) : null );
                         if( null != glad ) {
                             glad.addGLEventListener(new GLEventListener() {
                                 @Override
@@ -218,19 +225,26 @@ public class TestPerf001GLJPanelInit02AWT extends UITestCase {
         canvas.setSize(size);
         canvas.setPreferredSize(size);
         if( useGears ) {
-            canvas.addGLEventListener(new GearsES2());
+            final GearsES2 g = new GearsES2(0);
+            g.setVerbose(false);
+            canvas.addGLEventListener(g);
         }
         if( null != anim ) {
             anim.add(canvas);
         }
         return canvas;
     }
-    private GLAutoDrawable createGLJPanel(boolean initMT, GLCapabilitiesImmutable caps, boolean useGears, GLAnimatorControl anim, Dimension size) {
+    private GLAutoDrawable createGLJPanel(boolean initMT, boolean useSwingDoubleBuffer, GLCapabilitiesImmutable caps, boolean useGears, boolean skipGLOrientationVerticalFlip, GLAnimatorControl anim, Dimension size) {
         GLJPanel canvas = new GLJPanel(caps);
         canvas.setSize(size);
         canvas.setPreferredSize(size);
+        canvas.setDoubleBuffered(useSwingDoubleBuffer);
+        canvas.setSkipGLOrientationVerticalFlip(skipGLOrientationVerticalFlip);
         if( useGears ) {
-            canvas.addGLEventListener(new GearsES2());
+            final GearsES2 g = new GearsES2(0);
+            g.setVerbose(false);
+            g.setFlipVerticalInGLOrientation(skipGLOrientationVerticalFlip);
+            canvas.addGLEventListener(g);
         }
         if( null != anim ) {
             anim.add(canvas);
@@ -243,66 +257,116 @@ public class TestPerf001GLJPanelInit02AWT extends UITestCase {
 
     static GLCapabilitiesImmutable caps = null;
 
+    //
+    // NOP
+    //
+
     @Test
     public void test00NopNoGLDefGrid() throws InterruptedException, InvocationTargetException {
-        test(null, false /*useGears*/, width, height , frameCount, false /* initMT */, false /* useGLJPanel */,
-             false /* useGLCanvas */, false /*useAnim*/, false /* overlap */);
+        test(new GLCapabilities(null), false /*useGears*/, false /*skipGLOrientationVerticalFlip*/, width , height, frameCount, false /* initMT */,
+             false /* useGLJPanel */, false /*useSwingDoubleBuffer*/, false /* useGLCanvas */, false /*useAnim*/, false /* overlap */);
     }
 
     @Test
     public void test01NopGLCanvasDefGrid() throws InterruptedException, InvocationTargetException {
-        test(new GLCapabilities(null), false /*useGears*/, width, height , frameCount, false /* initMT */, false /* useGLJPanel */,
-             true /* useGLCanvas */, false /*useAnim*/, false /* overlap */);
+        test(new GLCapabilities(null), false /*useGears*/, false /*skipGLOrientationVerticalFlip*/, width , height, frameCount, false /* initMT */,
+             false /* useGLJPanel */, false /*useSwingDoubleBuffer*/, true /* useGLCanvas */, false /*useAnim*/, false /* overlap */);
+    }
+
+    @Test
+    public void test02NopGLJPanelDefGridSingleAutoFlip() throws InterruptedException, InvocationTargetException {
+        test(new GLCapabilities(null), false /*useGears*/, false /*skipGLOrientationVerticalFlip*/, width , height, frameCount, false /* initMT */,
+             true /* useGLJPanel */, false /*useSwingDoubleBuffer*/, false /* useGLCanvas */, false /*useAnim*/, false /* overlap */);
+    }
+
+    @Test
+    public void test03NopGLJPanelDefGridSingleManualFlip() throws InterruptedException, InvocationTargetException {
+        test(new GLCapabilities(null), false /*useGears*/, true /*skipGLOrientationVerticalFlip*/, width , height, frameCount, false /* initMT */,
+             true /* useGLJPanel */, false /*useSwingDoubleBuffer*/, false /* useGLCanvas */, false /*useAnim*/, false /* overlap */);
+    }
+
+    @Test
+    public void test04GearsGLJPanelDefGridMTManualFlip() throws InterruptedException, InvocationTargetException {
+        test(new GLCapabilities(null), false /*useGears*/, true /*skipGLOrientationVerticalFlip*/, width , height, frameCount, true  /* initMT */,
+             true /* useGLJPanel */, false /*useSwingDoubleBuffer*/, false /* useGLCanvas */, false /*useAnim*/, false /* overlap */);
+    }
+
+    //
+    // Gears
+    //
+
+    @Test
+    public void test10GearsNoGLDefGrid() throws InterruptedException, InvocationTargetException {
+        test(new GLCapabilities(null), true /*useGears*/, false /*skipGLOrientationVerticalFlip*/, width , height, frameCount, false /* initMT */,
+             false /* useGLJPanel */, false /*useSwingDoubleBuffer*/, false /* useGLCanvas */, false /*useAnim*/, false /* overlap */);
+    }
+
+    @Test
+    public void test11GearsGLCanvasDefGrid() throws InterruptedException, InvocationTargetException {
+        test(new GLCapabilities(null), true /*useGears*/, false /*skipGLOrientationVerticalFlip*/, width , height, frameCount, false /* initMT */,
+             false /* useGLJPanel */, false /*useSwingDoubleBuffer*/, true /* useGLCanvas */, false /*useAnim*/, false /* overlap */);
+    }
+
+    @Test
+    public void test12GearsGLJPanelDefGridSingleAutoFlip() throws InterruptedException, InvocationTargetException {
+        test(new GLCapabilities(null), true /*useGears*/, false /*skipGLOrientationVerticalFlip*/, width , height, frameCount, false /* initMT */,
+             true /* useGLJPanel */, false /*useSwingDoubleBuffer*/, false /* useGLCanvas */, false /*useAnim*/, false /* overlap */);
     }
 
     @Test
-    public void test02NopGLJPanelDefGridSingle() throws InterruptedException, InvocationTargetException {
-        test(new GLCapabilities(null), false /*useGears*/, width, height , frameCount, false /* initMT */, true /* useGLJPanel */,
-             false /* useGLCanvas */, false /*useAnim*/, false /* overlap */);
+    public void test13GearsGLJPanelDefGridSingleManualFlip() throws InterruptedException, InvocationTargetException {
+        test(new GLCapabilities(null), true /*useGears*/, true /*skipGLOrientationVerticalFlip*/, width , height, frameCount, false /* initMT */,
+             true /* useGLJPanel */, false /*useSwingDoubleBuffer*/, false /* useGLCanvas */, false /*useAnim*/, false /* overlap */);
     }
 
     @Test
-    public void test03NopGLJPanelDefGridMT() throws InterruptedException, InvocationTargetException {
-        test(new GLCapabilities(null), false /*useGears*/, width, height , frameCount, true  /* initMT */, true /* useGLJPanel */,
-             false /* useGLCanvas */, false /*useAnim*/, false /* overlap */);
+    public void test14GearsGLJPanelDefGridMTManualFlip() throws InterruptedException, InvocationTargetException {
+        test(new GLCapabilities(null), true /*useGears*/, true /*skipGLOrientationVerticalFlip*/, width , height, frameCount, true  /* initMT */,
+             true /* useGLJPanel */, false /*useSwingDoubleBuffer*/, false /* useGLCanvas */, false /*useAnim*/, false /* overlap */);
     }
 
+
+    //
+    // Overlap + NOP
+    //
+
+
     @Test
-    public void test10NopNoGLDefOverlap() throws InterruptedException, InvocationTargetException {
-        test(null, false /*useGears*/, width, height , frameCount, false /* initMT */, false /* useGLJPanel */,
-             false /* useGLCanvas */, false /*useAnim*/, true /* overlap */);
+    public void test20NopNoGLDefOverlap() throws InterruptedException, InvocationTargetException {
+        test(null, false /*useGears*/, false /*skipGLOrientationVerticalFlip*/, width , height, frameCount, false /* initMT */,
+             false /* useGLJPanel */, false /*useSwingDoubleBuffer*/, false /* useGLCanvas */, false /*useAnim*/, true /* overlap */);
     }
 
     @Test
-    public void test11NopGLCanvasDefOverlap() throws InterruptedException, InvocationTargetException {
-        test(new GLCapabilities(null), false /*useGears*/, width, height , frameCount, false /* initMT */, false /* useGLJPanel */,
-             true /* useGLCanvas */, false /*useAnim*/, true /* overlap */);
+    public void test21NopGLCanvasDefOverlap() throws InterruptedException, InvocationTargetException {
+        test(new GLCapabilities(null), false /*useGears*/, false /*skipGLOrientationVerticalFlip*/, width , height, frameCount, false /* initMT */,
+             false /* useGLJPanel */, false /*useSwingDoubleBuffer*/, true /* useGLCanvas */, false /*useAnim*/, true /* overlap */);
     }
 
     @Test
-    public void test12NopGLJPanelDefOverlapSingle() throws InterruptedException, InvocationTargetException {
-        test(new GLCapabilities(null), false /*useGears*/, width, height , frameCount, false /* initMT */, true /* useGLJPanel */,
-             false /* useGLCanvas */, false /*useAnim*/, true /* overlap */);
+    public void test22NopGLJPanelDefOverlapSingle() throws InterruptedException, InvocationTargetException {
+        test(new GLCapabilities(null), false /*useGears*/, false /*skipGLOrientationVerticalFlip*/, width , height, frameCount, false /* initMT */,
+             true /* useGLJPanel */, false /*useSwingDoubleBuffer*/, false /* useGLCanvas */, false /*useAnim*/, true /* overlap */);
     }
 
     @Test
-    public void test13NopGLJPanelDefOverlapMT() throws InterruptedException, InvocationTargetException {
-        test(new GLCapabilities(null), false /*useGears*/, width, height , frameCount, true  /* initMT */, true /* useGLJPanel */,
-             false /* useGLCanvas */, false /*useAnim*/, true /* overlap */);
+    public void test23NopGLJPanelDefOverlapMT() throws InterruptedException, InvocationTargetException {
+        test(new GLCapabilities(null), false /*useGears*/, false /*skipGLOrientationVerticalFlip*/, width , height, frameCount, true  /* initMT */,
+             true /* useGLJPanel */, false /*useSwingDoubleBuffer*/, false /* useGLCanvas */, false /*useAnim*/, true /* overlap */);
     }
 
     // @Test
-    public void test04NopGLJPanelDefOverlapSingle() throws InterruptedException, InvocationTargetException {
-        test(new GLCapabilities(null), false /*useGears*/, width, height , frameCount, false /* initMT */, true /* useGLJPanel */,
-             false /* useGLCanvas */, false /*useAnim*/, true /* overlap */);
+    public void testXXNopGLJPanelDefOverlapSingle() throws InterruptedException, InvocationTargetException {
+        test(new GLCapabilities(null), false /*useGears*/, false /*skipGLOrientationVerticalFlip*/, width , height, frameCount, false /* initMT */,
+             true /* useGLJPanel */, false /*useSwingDoubleBuffer*/, false /* useGLCanvas */, false /*useAnim*/, true /* overlap */);
     }
 
     // @Test
-    public void test05NopGLJPanelBitmapGridSingle() throws InterruptedException, InvocationTargetException {
+    public void testXXNopGLJPanelBitmapGridSingle() throws InterruptedException, InvocationTargetException {
         GLCapabilities caps = new GLCapabilities(null);
         caps.setBitmap(true);
-        test(caps, false /*useGears*/, width, height , frameCount, false /* initMT */, true /* useGLJPanel */,
-             false /* useGLCanvas */, false /*useAnim*/, false);
+        test(caps, false /*useGears*/, false /*skipGLOrientationVerticalFlip*/, width , height, frameCount, false /* initMT */,
+             true /* useGLJPanel */, false /*useSwingDoubleBuffer*/, false /* useGLCanvas */, false /*useAnim*/, false);
     }
 
     static long duration = 0; // ms
@@ -312,9 +376,11 @@ public class TestPerf001GLJPanelInit02AWT extends UITestCase {
     volatile int initCount = 0;
 
     public static void main(String[] args) {
-        boolean useGLJPanel = true, initMT = false, useGLCanvas = false, useGears = false, manual=false;
-        boolean overlap = false;
+        boolean manual=false;
         boolean waitMain = false;
+        boolean useGLJPanel = true, initMT = false, useGLCanvas = false, useSwingDoubleBuffer=false;
+        boolean useGears = false, skipGLOrientationVerticalFlip=false, useAnim = false;
+        boolean overlap = false;
 
         for(int i=0; i<args.length; i++) {
             if(args[i].equals("-time")) {
@@ -333,12 +399,18 @@ public class TestPerf001GLJPanelInit02AWT extends UITestCase {
                 useGLJPanel = false;
                 useGLCanvas = true;
                 manual = true;
+            } else if(args[i].equals("-swingDoubleBuffer")) {
+                useSwingDoubleBuffer = true;
             } else if(args[i].equals("-glnone")) {
                 useGLJPanel = false;
                 useGLCanvas = false;
                 manual = true;
             } else if(args[i].equals("-gears")) {
                 useGears = true;
+            } else if(args[i].equals("-anim")) {
+                useAnim = true;
+            } else if(args[i].equals("-userVertFlip")) {
+                skipGLOrientationVerticalFlip = true;
             } else if(args[i].equals("-overlap")) {
                 overlap = true;
             } else if(args[i].equals("-wait")) {
@@ -357,7 +429,8 @@ public class TestPerf001GLJPanelInit02AWT extends UITestCase {
         if( manual ) {
             GLProfile.initSingleton();
             TestPerf001GLJPanelInit02AWT demo = new TestPerf001GLJPanelInit02AWT();
-            demo.test(null, useGears, width, height, frameCount, initMT, useGLJPanel, useGLCanvas, false /*useAnim*/, overlap /* overlap */);
+            demo.test(null, useGears, skipGLOrientationVerticalFlip, width, height, frameCount,
+                      initMT, useGLJPanel, useSwingDoubleBuffer, useGLCanvas, useAnim, overlap);
         } else {
             org.junit.runner.JUnitCore.main(TestPerf001GLJPanelInit02AWT.class.getName());
         }