8357299: Graphics copyArea doesn't copy any pixels when there is overflow

Reviewed-by: achung, kizune, prr

Author: prsadhuk

src/java.desktop/share/native/libawt/java2d/loops/Blit.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2025, 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
@@ -74,19 +74,16 @@ Java_sun_java2d_loops_Blit_Blit
 
     srcInfo.bounds.x1 = srcx;
     srcInfo.bounds.y1 = srcy;
-    if (UNSAFE_TO_ADD(srcx, width) ||
-        UNSAFE_TO_ADD(srcy, height) ||
-        UNSAFE_TO_ADD(dstx, width) ||
-        UNSAFE_TO_ADD(dsty, height)) {
-        return;
-    }
-
-    srcInfo.bounds.x2 = srcx + width;
-    srcInfo.bounds.y2 = srcy + height;
+    srcInfo.bounds.x2 = UNSAFE_TO_ADD(srcx, width)
+                        ? clipInfo.bounds.x2 : (srcx + width);
+    srcInfo.bounds.y2 = UNSAFE_TO_ADD(srcy, height)
+                        ? clipInfo.bounds.y2 : (srcy + height);
     dstInfo.bounds.x1 = dstx;
     dstInfo.bounds.y1 = dsty;
-    dstInfo.bounds.x2 = dstx + width;
-    dstInfo.bounds.y2 = dsty + height;
+    dstInfo.bounds.x2 = UNSAFE_TO_ADD(dstx, width)
+                        ? clipInfo.bounds.x2 : (dstx + width);
+    dstInfo.bounds.y2 = UNSAFE_TO_ADD(dsty, height)
+                        ? clipInfo.bounds.y2 : (dsty + height);
     if (UNSAFE_TO_SUB(srcx, dstx) ||
         UNSAFE_TO_SUB(srcy, dsty)) {
         return;

test/jdk/java/awt/Graphics/BrokenBoundsClip.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2025, 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 8357299
+ * @summary Verifies if Graphics copyArea doesn't copy any pixels
+ *          when there is overflow
+ * @run main BrokenBoundsClip
+ */
+
+import java.awt.Color;
+import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
+
+import static java.awt.image.BufferedImage.TYPE_INT_RGB;
+
+public final class BrokenBoundsClip {
+
+     public static final int SIZE = 100;
+
+     public static void main(String[] args) {
+         BufferedImage bi = new BufferedImage(SIZE, SIZE, TYPE_INT_RGB);
+
+         Graphics2D g2d = bi.createGraphics();
+         g2d.setColor(Color.RED);
+         g2d.fillRect(SIZE / 2, SIZE / 2, SIZE / 2, SIZE / 2);
+
+         g2d.copyArea(bi.getWidth() / 2, bi.getHeight() / 2,
+                      Integer.MAX_VALUE , Integer.MAX_VALUE ,
+                      -bi.getWidth() / 2, -bi.getHeight() / 2);
+         int actual = bi.getRGB(0, 0);
+         int expected = Color.RED.getRGB();
+         if (actual != expected) {
+             System.err.println("Actual:   " + Integer.toHexString(actual));
+             System.err.println("Expected: " + Integer.toHexString(expected));
+             throw new RuntimeException("Wrong color");
+         }
+     }
+}