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.
2026-03-26 17:11:57 -04:00 · 2026-03-26 17:11:57 -04:00 · 0a580b313d
commit 0a580b313d
70422 changed files with 17213626 additions and 0 deletions
--- a/test/jdk/java/awt/image/DrawImage/UnmanagedDrawImagePerformance.java
+++ b/test/jdk/java/awt/image/DrawImage/UnmanagedDrawImagePerformance.java
@ -0,0 +1,126 @@
+/*
+ * Copyright (c) 2014, 2016, 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.
+ */
+
+import java.awt.AlphaComposite;
+import java.awt.Graphics2D;
+import java.awt.GraphicsConfiguration;
+import java.awt.GraphicsDevice;
+import java.awt.GraphicsEnvironment;
+import java.awt.Image;
+import java.awt.Polygon;
+import java.awt.geom.AffineTransform;
+import java.awt.image.BufferedImage;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferByte;
+import java.awt.image.DataBufferInt;
+import java.awt.image.DataBufferShort;
+import java.awt.image.VolatileImage;
+
+import static java.awt.Transparency.*;
+import static java.awt.image.BufferedImage.*;
+
+/*
+ * @test
+ * @key headful
+ * @bug 8029253 8059941
+ * @summary Unmanaged images should be drawn fast.
+ * @author Sergey Bylokhov
+ */
+public final class UnmanagedDrawImagePerformance {
+
+    private static final int[] TYPES = {TYPE_INT_RGB, TYPE_INT_ARGB,
+                                        TYPE_INT_ARGB_PRE, TYPE_INT_BGR,
+                                        TYPE_3BYTE_BGR, TYPE_4BYTE_ABGR,
+                                        TYPE_4BYTE_ABGR_PRE,
+                                        TYPE_USHORT_565_RGB,
+                                        TYPE_USHORT_555_RGB, TYPE_BYTE_GRAY,
+                                        TYPE_USHORT_GRAY, TYPE_BYTE_BINARY,
+                                        TYPE_BYTE_INDEXED};
+    private static final int[] TRANSPARENCIES = {OPAQUE, BITMASK, TRANSLUCENT};
+    private static final int SIZE = 1000;
+    private static final AffineTransform[] TRANSFORMS = {
+            AffineTransform.getScaleInstance(.5, .5),
+            AffineTransform.getScaleInstance(1, 1),
+            AffineTransform.getScaleInstance(2, 2),
+            AffineTransform.getShearInstance(7, 11)};
+
+    public static void main(final String[] args) {
+        for (final AffineTransform atfm : TRANSFORMS) {
+            for (final int viType : TRANSPARENCIES) {
+                for (final int biType : TYPES) {
+                    final BufferedImage bi = makeUnmanagedBI(biType);
+                    final VolatileImage vi = makeVI(viType);
+                    final long time = test(bi, vi, atfm) / 1000000000;
+                    if (time > 1) {
+                        throw new RuntimeException(String.format(
+                                "drawImage is slow: %d seconds", time));
+                    }
+                }
+            }
+        }
+    }
+
+    private static long test(Image bi, Image vi, AffineTransform atfm) {
+        final Polygon p = new Polygon();
+        p.addPoint(0, 0);
+        p.addPoint(SIZE, 0);
+        p.addPoint(0, SIZE);
+        p.addPoint(SIZE, SIZE);
+        p.addPoint(0, 0);
+        Graphics2D g2d = (Graphics2D) vi.getGraphics();
+        g2d.clip(p);
+        g2d.transform(atfm);
+        g2d.setComposite(AlphaComposite.SrcOver);
+        final long start = System.nanoTime();
+        g2d.drawImage(bi, 0, 0, null);
+        final long time = System.nanoTime() - start;
+        g2d.dispose();
+        return time;
+    }
+
+    private static VolatileImage makeVI(final int type) {
+        final GraphicsEnvironment ge = GraphicsEnvironment
+                .getLocalGraphicsEnvironment();
+        final GraphicsDevice gd = ge.getDefaultScreenDevice();
+        final GraphicsConfiguration gc = gd.getDefaultConfiguration();
+        return gc.createCompatibleVolatileImage(SIZE, SIZE, type);
+    }
+
+    private static BufferedImage makeUnmanagedBI(final int type) {
+        final BufferedImage img = new BufferedImage(SIZE, SIZE, type);
+        final DataBuffer db = img.getRaster().getDataBuffer();
+        if (db instanceof DataBufferInt) {
+            ((DataBufferInt) db).getData();
+        } else if (db instanceof DataBufferShort) {
+            ((DataBufferShort) db).getData();
+        } else if (db instanceof DataBufferByte) {
+            ((DataBufferByte) db).getData();
+        } else {
+            try {
+                img.setAccelerationPriority(0.0f);
+            } catch (final Throwable ignored) {
+            }
+        }
+        return img;
+    }
+}