1 files changed, 116 insertions, 0 deletions
diff --git a/test/sun/java2d/DirectX/InfiniteValidationLoopTest/InfiniteValidationLoopTest.java b/test/sun/java2d/DirectX/InfiniteValidationLoopTest/InfiniteValidationLoopTest.java
new file mode 100644
index 000000000..a520a3880
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+++ b/test/sun/java2d/DirectX/InfiniteValidationLoopTest/InfiniteValidationLoopTest.java
@@ -0,0 +1,116 @@
+/*
+ * Copyright 2007-2008 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 6648018
+ * @summary Tests that we don't run into infinite validation loop when copying
+            a VolatileImage to the screen
+ * @author Dmitri.Trembovetski@sun.com: area=Graphics
+ * @run main/othervm InfiniteValidationLoopTest
+ * @run main/othervm -Dsun.java2d.d3d=false InfiniteValidationLoopTest
+ */
+import java.awt.Color;
+import java.awt.Frame;
+import java.awt.Graphics;
+import java.awt.GraphicsConfiguration;
+import static java.awt.image.VolatileImage.*;
+import java.awt.image.VolatileImage;
+import java.util.concurrent.CountDownLatch;
+
+public class InfiniteValidationLoopTest extends Frame {
+    private static volatile boolean failed = false;
+    private static final int LOOP_THRESHOLD = 50;
+    private static volatile CountDownLatch latch;
+    private VolatileImage vi;
+
+    public InfiniteValidationLoopTest() {
+        super("InfiniteValidationLoopTest");
+    }
+
+    @Override
+    public void paint(Graphics g) {
+        try {
+            runTest(g);
+        } finally {
+            latch.countDown();
+        }
+    }
+
+    private void runTest(Graphics g) {
+        int status = IMAGE_OK;
+        int count1 = 0;
+        do {
+            GraphicsConfiguration gc = getGraphicsConfiguration();
+            int count2 = 0;
+            while (vi == null || (status = vi.validate(gc)) != IMAGE_OK) {
+                if (++count2 > LOOP_THRESHOLD) {
+                    System.err.println("Infinite loop detected: count2="+count2);
+                    failed = true;
+                    return;
+                }
+                if (vi == null || status == IMAGE_INCOMPATIBLE) {
+                    if (vi != null) { vi.flush(); vi = null; }
+                    vi = gc.createCompatibleVolatileImage(100, 100);
+                    continue;
+                }
+                if (status == IMAGE_RESTORED) {
+                    Graphics gg = vi.getGraphics();
+                    gg.setColor(Color.green);
+                    gg.fillRect(0, 0, vi.getWidth(), vi.getHeight());
+                    break;
+                }
+            }
+            g.drawImage(vi, getInsets().left, getInsets().top, null);
+            if (++count1 > LOOP_THRESHOLD) {
+                System.err.println("Infinite loop detected: count1="+count1);
+                failed = true;
+                return;
+            }
+        } while (vi.contentsLost());
+    }
+
+    public static void main(String[] args) {
+        latch = new CountDownLatch(1);
+        InfiniteValidationLoopTest t1 = new InfiniteValidationLoopTest();
+        t1.pack();
+        t1.setSize(200, 200);
+        t1.setVisible(true);
+        try { latch.await(); } catch (InterruptedException ex) {}
+        t1.dispose();
+
+        latch = new CountDownLatch(1);
+        t1 = new InfiniteValidationLoopTest();
+        t1.pack();
+        t1.setSize(50, 50);
+        t1.setVisible(true);
+        try { latch.await(); } catch (InterruptedException ex) {}
+        t1.dispose();
+
+        if (failed) {
+            throw new
+                RuntimeException("Failed: infinite validattion loop detected");
+        }
+        System.out.println("Test PASSED");
+    }
+}