undefect. CWE-407 — 63 sites patched across 27 ecosystems

Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.

test/jdk/java/awt/image/VolatileImage/DrawHugeImageTest.java

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+/*
+ * Copyright (c) 2014, 2018, 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
+ * @key headful
+ * @bug     8040617 8198613
+ * @summary Test verifies that an attempt to get an accelerated copy of
+ *          a huge buffered image does not result in an OOME.
+ *
+ * @run     main DrawHugeImageTest
+ */
+
+import java.awt.Color;
+import java.awt.Graphics2D;
+import java.awt.GraphicsConfiguration;
+import java.awt.GraphicsEnvironment;
+import java.awt.image.BufferedImage;
+import java.awt.image.VolatileImage;
+
+public class DrawHugeImageTest {
+    // we have to render the BI source several times in order
+    // to get an accelerated copy to be used.
+    static {
+        System.setProperty("sun.java2d.accthreshold", "1");
+    }
+    private static final int max_rendering_count = 5;
+
+    private static final Color srcColor = Color.red;
+    private static final Color dstColor = Color.blue;
+
+    public static void main(String[] args) {
+        BufferedImage src = createSrc();
+
+        VolatileImage dst = createDst();
+        System.out.println("Dst: " + dst);
+        boolean status;
+        int count = max_rendering_count;
+
+        do {
+            System.out.println("render image: " + (max_rendering_count - count));
+            status = render(src, dst);
+
+        } while (status && count-- > 0);
+
+        if (!status || count > 0) {
+            throw new RuntimeException("Test failed: " + count);
+        }
+    }
+
+    private static boolean render(BufferedImage src, VolatileImage dst) {
+        int cnt = 5;
+        do {
+            Graphics2D g = dst.createGraphics();
+            g.setColor(dstColor);
+            g.fillRect(0, 0, dst.getWidth(), dst.getHeight());
+            g.drawImage(src, 0, 0, null);
+            g.dispose();
+        } while (dst.contentsLost() && (--cnt > 0));
+
+        if (cnt == 0) {
+            System.err.println("Test failed: unable to render to volatile destination");
+            return false;
+        }
+
+        BufferedImage s = dst.getSnapshot();
+
+        return s.getRGB(1,1) == srcColor.getRGB();
+    }
+
+    private static BufferedImage createSrc() {
+        final int w = 20000;
+        final int h = 5;
+
+        BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_3BYTE_BGR);
+        Graphics2D g = img.createGraphics();
+        g.setColor(srcColor);
+        g.fillRect(0, 0, w, h);
+        g.dispose();
+
+        return img;
+    }
+
+    private static VolatileImage createDst() {
+        GraphicsConfiguration gc =
+                GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getDefaultConfiguration();
+
+        return gc.createCompatibleVolatileImage(200, 200);
+    }
+}