changeset 7290:08aa9c8a8f2e

RT-37527: [TESTS/Monocle]: Unit test for framebuffer overflow
author Daniel Blaukopf <daniel.blaukopf@oracle.com>
date Sun, 15 Jun 2014 19:50:26 +0300
parents fad1b7cb08d7
children ab1872cec7cd
files tests/system/src/test/java/com/sun/glass/ui/monocle/FramebufferTest.java
diffstat 1 files changed, 70 insertions(+), 0 deletions(-) [+]
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/system/src/test/java/com/sun/glass/ui/monocle/FramebufferTest.java	Sun Jun 15 19:50:26 2014 +0300
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2014, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+
+package com.sun.glass.ui.monocle;
+
+import org.junit.Test;
+
+import java.nio.ByteBuffer;
+
+public class FramebufferTest {
+
+    @Test
+    public void testOverflow32() {
+        ByteBuffer screenBuffer = ByteBuffer.allocate(100 * 100 * 4);
+        Framebuffer fb = new Framebuffer(screenBuffer, 100, 100, 4, false);
+        ByteBuffer windowBuffer = ByteBuffer.allocate(200 * 200 * 4);
+        fb.reset();
+        fb.composePixels(windowBuffer, -50, -50, 200, 200, 1f);
+        windowBuffer.clear();
+        fb.composePixels(windowBuffer, -50, -50, 200, 200, 1f);
+        windowBuffer.clear();
+        fb.reset();
+        fb.composePixels(windowBuffer, -50, -50, 200, 200, 0.5f);
+        windowBuffer.clear();
+        fb.composePixels(windowBuffer, -50, -50, 200, 200, 0.5f);
+        windowBuffer.clear();
+    }
+
+    @Test
+    public void testOverflow16() {
+        // A 16-bit framebuffer stores its content in 32-bits and writes out
+        // to a 32-bit target. So it needs four bytes per pixel in its buffer.
+        ByteBuffer screenBuffer = ByteBuffer.allocate(100 * 100 * 4);
+        Framebuffer fb = new Framebuffer(screenBuffer, 100, 100, 2, false);
+        ByteBuffer windowBuffer = ByteBuffer.allocate(200 * 200 * 4);
+        fb.reset();
+        fb.composePixels(windowBuffer, -50, -50, 200, 200, 1f);
+        windowBuffer.clear();
+        fb.composePixels(windowBuffer, -50, -50, 200, 200, 1f);
+        windowBuffer.clear();
+        fb.reset();
+        fb.composePixels(windowBuffer, -50, -50, 200, 200, 0.5f);
+        windowBuffer.clear();
+        fb.composePixels(windowBuffer, -50, -50, 200, 200, 0.5f);
+        windowBuffer.clear();
+    }
+
+}