--- a/jdk/src/share/classes/sun/java2d/opengl/OGLBlitLoops.java	Fri Nov 30 16:02:00 2012 -0800
+++ b/jdk/src/share/classes/sun/java2d/opengl/OGLBlitLoops.java	Mon Dec 03 16:26:47 2012 +0400
@@ -25,6 +25,7 @@
 
 package sun.java2d.opengl;
 
+import java.awt.AlphaComposite;
 import java.awt.Composite;
 import java.awt.Transparency;
 import java.awt.geom.AffineTransform;
@@ -99,6 +100,8 @@
                                CompositeType.AnyAlpha,
                                blitIntArgbPreToSurface),
 
+            new OGLAnyCompositeBlit(OGLSurfaceData.OpenGLSurface),
+
             new OGLSwToSurfaceScale(SurfaceType.IntRgb,
                                     OGLSurfaceData.PF_INT_RGB),
             new OGLSwToSurfaceScale(SurfaceType.IntRgbx,
@@ -175,6 +178,9 @@
             new OGLGeneralBlit(OGLSurfaceData.OpenGLTexture,
                                CompositeType.SrcNoEa,
                                blitIntArgbPreToTexture),
+
+            new OGLAnyCompositeBlit(OGLSurfaceData.OpenGLTexture),
+
         };
         GraphicsPrimitiveMgr.register(primitives);
     }
@@ -763,3 +769,49 @@
         }
     }
 }
+
+class OGLAnyCompositeBlit extends Blit {
+    private WeakReference<SurfaceData> dstTmp;
+
+    public OGLAnyCompositeBlit(SurfaceType dstType) {
+        super(SurfaceType.Any, CompositeType.Any, dstType);
+    }
+    public synchronized void Blit(SurfaceData src, SurfaceData dst,
+                                  Composite comp, Region clip,
+                                  int sx, int sy, int dx, int dy,
+                                  int w, int h)
+    {
+        Blit convertdst = Blit.getFromCache(dst.getSurfaceType(),
+                                            CompositeType.SrcNoEa,
+                                            SurfaceType.IntArgbPre);
+
+        SurfaceData cachedDst = null;
+
+        if (dstTmp != null) {
+            // use cached intermediate surface, if available
+            cachedDst = dstTmp.get();
+        }
+
+        // convert source to IntArgbPre
+        SurfaceData dstBuffer = convertFrom(convertdst, dst, dx, dy, w, h,
+                          cachedDst, BufferedImage.TYPE_INT_ARGB_PRE);
+
+        Blit performop = Blit.getFromCache(src.getSurfaceType(),
+                CompositeType.Any, dstBuffer.getSurfaceType());
+
+        performop.Blit(src, dstBuffer, comp, clip,
+                       sx, sy, 0, 0, w, h);
+
+        if (dstBuffer != cachedDst) {
+            // cache the intermediate surface
+            dstTmp = new WeakReference(dstBuffer);
+        }
+
+        // now blit the buffer back to the destination
+        convertdst = Blit.getFromCache(dstBuffer.getSurfaceType(),
+                                            CompositeType.SrcNoEa,
+                                            dst.getSurfaceType());
+        convertdst.Blit(dstBuffer, dst, AlphaComposite.Src,
+                 clip, 0, 0, dx, dy, w, h);
+    }
+}

--- a/jdk/src/share/classes/sun/java2d/opengl/OGLSurfaceDataProxy.java	Fri Nov 30 16:02:00 2012 -0800
+++ b/jdk/src/share/classes/sun/java2d/opengl/OGLSurfaceDataProxy.java	Mon Dec 03 16:26:47 2012 +0400
@@ -76,6 +76,7 @@
                                         CompositeType comp,
                                         Color bgColor)
     {
-        return (bgColor == null || transparency == Transparency.OPAQUE);
+        return comp.isDerivedFrom(CompositeType.AnyAlpha) &&
+               (bgColor == null || transparency == Transparency.OPAQUE);
     }
 }

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/sun/java2d/OpenGL/CustomCompositeTest.java	Mon Dec 03 16:26:47 2012 +0400
@@ -0,0 +1,266 @@
+/*
+ * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug     7124347
+ * @summary Verifies that rendering with XOR composite, and arbitraty
+ *          custom composite doesn not cause internal errors.
+ *
+ * @run     main/othervm -Dsun.java2d.opengl=True CustomCompositeTest
+ */
+
+import java.awt.AWTException;
+import java.awt.Color;
+import java.awt.Composite;
+import java.awt.CompositeContext;
+import java.awt.Dimension;
+import java.awt.GradientPaint;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.GraphicsConfiguration;
+import java.awt.GraphicsEnvironment;
+import java.awt.ImageCapabilities;
+import java.awt.RenderingHints;
+import java.awt.image.BufferedImage;
+import java.awt.image.ColorModel;
+import java.awt.image.DataBufferInt;
+import java.awt.image.Raster;
+import java.awt.image.SinglePixelPackedSampleModel;
+import java.awt.image.VolatileImage;
+import java.awt.image.WritableRaster;
+import java.util.concurrent.CountDownLatch;
+import javax.swing.JComponent;
+import javax.swing.JFrame;
+import javax.swing.SwingUtilities;
+
+public class CustomCompositeTest {
+
+    private static JFrame frame;
+    private static CountDownLatch paintLatch;
+    private static Throwable paintError;
+
+    public static void main(String[] args) {
+
+        paintLatch = new CountDownLatch(1);
+        paintError = null;
+
+        SwingUtilities.invokeLater(new Runnable() {
+            public void run() {
+                initGUI();
+            }
+        });
+
+        try {
+            paintLatch.await();
+        } catch (InterruptedException e) {
+        };
+        System.out.println("Paint is done!");
+        if (paintError != null) {
+            frame.dispose();
+            throw new RuntimeException("Test FAILED.", paintError);
+        }
+
+        System.out.println("Phase 1: PASSED.");
+
+        // now resise the frame in order to cause re-paint with accelerated
+        // source images.
+        paintError = null;
+        paintLatch = new CountDownLatch(1);
+
+        SwingUtilities.invokeLater(new Runnable() {
+            @Override
+            public void run() {
+                Dimension size = frame.getSize();
+                size.width += 50;
+                size.height += 50;
+
+                frame.setSize(size);
+            }
+        });
+
+        try {
+            paintLatch.await();
+        } catch (InterruptedException e) {
+        };
+        if (paintError != null) {
+            frame.dispose();
+            throw new RuntimeException("Resize test FAILED.", paintError);
+        }
+        frame.dispose();
+        System.out.println("Phase 2: PASSED.");
+
+        GraphicsEnvironment env = GraphicsEnvironment.getLocalGraphicsEnvironment();
+        GraphicsConfiguration cfg = env.getDefaultScreenDevice().getDefaultConfiguration();
+        // test rendering to accelerated volatile image
+        testVolatileImage(cfg, true);
+        System.out.println("Phase 3: PASSED.");
+
+        // test rendering to unaccelerated volatile image
+        testVolatileImage(cfg, false);
+        System.out.println("Phase 4: PASSED.");
+    }
+
+    private static void testVolatileImage(GraphicsConfiguration cfg,
+            boolean accelerated)
+    {
+        VolatileImage dst = null;
+        try {
+            dst = cfg.createCompatibleVolatileImage(640, 480,
+                new ImageCapabilities(accelerated));
+        } catch (AWTException e) {
+            System.out.println("Unable to create volatile image, skip the test.");
+            return;
+        }
+        renderToVolatileImage(dst);
+    }
+
+    private static void renderToVolatileImage(VolatileImage dst) {
+        Graphics2D g = dst.createGraphics();
+        do {
+            System.out.println("Render to volatile image..");
+            try {
+                MyComp.renderTest(g, dst.getHeight(), dst.getHeight());
+            } catch (Throwable e) {
+                throw new RuntimeException("Test FAILED.", e);
+            }
+        } while (dst.contentsLost());
+        System.out.println("Done.");
+    }
+
+    private static void initGUI() {
+        frame = new JFrame("Silly composite");
+        frame.getContentPane().add(new MyComp());
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        frame.pack();
+        frame.setVisible(true);
+    }
+
+    private static class MyComp extends JComponent {
+
+        private static BufferedImage theImage;
+
+        public MyComp() {
+        }
+
+        private static BufferedImage getTestImage() {
+            if (theImage == null) {
+                theImage = new BufferedImage(256, 256, BufferedImage.TYPE_INT_ARGB);
+                Graphics2D g2d = theImage.createGraphics();
+                g2d.setColor(Color.red);
+                g2d.fillRect(0, 0, 256, 256);
+
+                g2d.setPaint(new GradientPaint(0, 0, Color.red, 256, 256, Color.blue));
+                g2d.fillRect(0, 100, 256, 256);
+                g2d.dispose();
+            }
+            return theImage;
+        }
+
+        public Dimension getPreferredSize() {
+            return new Dimension(640, 375);
+        }
+
+        public void paintComponent(Graphics g) {
+
+
+            Graphics2D g2d = (Graphics2D) g;
+            try {
+                renderTest(g2d, getWidth(), getHeight());
+            } catch (Throwable e) {
+                paintError = e;
+            }
+            if (paintLatch != null) {
+                paintLatch.countDown();
+            }
+        }
+
+        public static void renderTest(Graphics2D g2d, int w, int h) {
+            g2d.setColor(Color.yellow);
+            g2d.fillRect(0, 0, w, h);
+
+            BufferedImage image = getTestImage();
+            // draw original image
+            g2d.drawRenderedImage(image, null);
+
+            // draw image with custom composite
+            g2d.translate(175, 25);
+            Composite currentComposite = g2d.getComposite();
+            g2d.setComposite(new TestComposite());
+            g2d.drawRenderedImage(image, null);
+            g2d.setComposite(currentComposite);
+
+            // draw image with XOR
+            g2d.translate(175, 25);
+            g2d.setXORMode(Color.red);
+            g2d.drawRenderedImage(image, null);
+
+
+            System.out.println("Painting is done...");
+        }
+    }
+
+    // A silly custom Composite to demonstrate the problem - just inverts the RGB
+    private static class TestComposite implements Composite {
+
+        public CompositeContext createContext(ColorModel srcColorModel, ColorModel dstColorModel, RenderingHints hints) {
+            return new TestCompositeContext();
+        }
+    }
+
+    private static class TestCompositeContext implements CompositeContext {
+
+        public void dispose() {
+        }
+
+        public void compose(Raster src, Raster dstIn, WritableRaster dstOut) {
+            int w = src.getWidth();
+            int h = src.getHeight();
+
+            DataBufferInt srcDB = (DataBufferInt) src.getDataBuffer();
+            DataBufferInt dstOutDB = (DataBufferInt) dstOut.getDataBuffer();
+            int srcRGB[] = srcDB.getBankData()[0];
+            int dstOutRGB[] = dstOutDB.getBankData()[0];
+            int srcOffset = srcDB.getOffset();
+            int dstOutOffset = dstOutDB.getOffset();
+            int srcScanStride = ((SinglePixelPackedSampleModel) src.getSampleModel()).getScanlineStride();
+            int dstOutScanStride = ((SinglePixelPackedSampleModel) dstOut.getSampleModel()).getScanlineStride();
+            int srcAdjust = srcScanStride - w;
+            int dstOutAdjust = dstOutScanStride - w;
+
+            int si = srcOffset;
+            int doi = dstOutOffset;
+
+            for (int i = 0; i < h; i++) {
+                for (int j = 0; j < w; j++) {
+                    dstOutRGB[doi] = srcRGB[si] ^ 0x00ffffff;
+                    si++;
+                    doi++;
+                }
+
+                si += srcAdjust;
+                doi += dstOutAdjust;
+            }
+        }
+    }
+}