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

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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.
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russell@unturf.com 2026-03-26 17:11:57 -04:00
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test/jdk/java/awt/Robot/HiDPIScreenCapture/ScreenCaptureTest.java Normal file
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/*
* Copyright (c) 2017, 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 8162959
* @summary Validate output of createMultiResolutionScreenCapture
* new API which returns MultiResolutionImage.
* @run main/othervm -Dsun.java2d.uiScale=1 ScreenCaptureTest
* @run main/othervm -Dsun.java2d.uiScale=2 ScreenCaptureTest
*/
import java.awt.Dimension;
import java.awt.GraphicsEnvironment;
import java.awt.Image;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import java.awt.image.MultiResolutionImage;
import java.awt.BorderLayout;
import java.awt.Canvas;
import java.awt.Color;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Panel;
import java.awt.Robot;
import java.util.List;
public class ScreenCaptureTest {
private static Robot robot;
private static Frame frame;
private static boolean isHiDPI = true;
private static final Color[] COLORS = {
Color.GREEN, Color.BLUE, Color.ORANGE, Color.RED};
public static void main(String[] args) throws Exception {
frame = new Frame();
frame.setBounds(0, 0, 400, 400);
frame.setUndecorated(true);
robot = new Robot();
Panel panel = new Panel(new BorderLayout());
Canvas canvas = new Canvas() {
public void paint(Graphics g) {
super.paint(g);
int w = getWidth();
int h = getHeight();
g.setColor(COLORS[0]);
g.fillRect(0, 0, w / 2, h / 2);
g.setColor(COLORS[1]);
g.fillRect(w / 2, 0, w / 2, h / 2);
g.setColor(COLORS[2]);
g.fillRect(0, h / 2, w / 2, h / 2);
g.setColor(COLORS[3]);
g.fillRect(w / 2, h / 2, w / 2, h / 2);
}
};
panel.add(canvas);
frame.add(panel);
frame.setVisible(true);
robot.delay(500);
robot.waitForIdle();
int w = frame.getWidth();
int h = frame.getHeight();
// getPixelColor Test
// Check pixel color in first quardant GREEN; x=100, y=100
if (!robot.getPixelColor(w / 4, h / 4).equals(COLORS[0])) {
throw new RuntimeException("Wrong Pixel Color! Expected GREEN");
}
// Check pixel color in second quardant; BLUE, x=300, y=100
if (!robot.getPixelColor(3 * w / 4, h / 4).equals(COLORS[1])) {
throw new RuntimeException("Wrong Pixel Color! Expected BLUE");
}
// Check pixel color in third quardant; ORANGE, x=100, y=300
if (!robot.getPixelColor(w / 4, 3 * h / 4).equals(COLORS[2])) {
throw new RuntimeException("Wrong Pixel Color! Expected ORANGE");
}
// Check pixel color in fourth quardant; RED, x=300, y=300
if (!robot.getPixelColor(3 * w / 4, 3 * h / 4).equals(COLORS[3])) {
throw new RuntimeException("Wrong Pixel Color! Expected RED");
}
// createScreenCaptureTest
AffineTransform tx = GraphicsEnvironment.getLocalGraphicsEnvironment()
.getDefaultScreenDevice().getDefaultConfiguration()
.getDefaultTransform();
if (tx.getScaleX() == 1 && tx.getScaleY() == 1) {
isHiDPI = false;
}
MultiResolutionImage image
= robot.createMultiResolutionScreenCapture(frame.getBounds());
List<Image> imageList = image.getResolutionVariants();
int size = imageList.size();
BufferedImage lowResImage;
BufferedImage highResImage;
if (!isHiDPI) {
// Check if output is MultiResolutionImage with one variant
if (size != 1) {
throw new RuntimeException(" Invalid variant size");
}
lowResImage = (BufferedImage) imageList.get(0);
System.out.println(frame.getBounds());
System.out.println(lowResImage.getWidth()+" "+lowResImage.getHeight());
if (frame.getWidth() != lowResImage.getWidth()
|| frame.getHeight() != lowResImage.getHeight()) {
throw new RuntimeException(" Invalid Image size");
}
} else {
// Check if output contains two variants.
if (size != 2) {
throw new RuntimeException(" Invalid variant size");
}
// Check if hight resolution image size is scale times low resolution image.
lowResImage = (BufferedImage) imageList.get(0);
highResImage = (BufferedImage) imageList.get(1);
int lW = (int) lowResImage.getWidth();
int lH = (int) lowResImage.getHeight();
int hW = (int) highResImage.getWidth();
int hH = (int) highResImage.getHeight();
if ( hW != (tx.getScaleX() * lW) || hH != (tx.getScaleY() * lH)) {
throw new RuntimeException(" Invalid Resolution Variants");
}
// Check if both image colors are same at some location.
if (lowResImage.getRGB(lW / 4, lH / 4)
!= highResImage.getRGB(hW / 4, hH / 4)) {
throw new RuntimeException("Wrong image color!");
}
if (lowResImage.getRGB(3 * lW / 4, lH / 4)
!= highResImage.getRGB(3 * hW / 4, hH / 4)) {
throw new RuntimeException("Wrong image color!");
}
if (lowResImage.getRGB(lW / 4, 3 * lH / 4)
!= highResImage.getRGB(hW / 4, 3 * hH / 4)) {
throw new RuntimeException("Wrong image color!");
}
if (lowResImage.getRGB(3 * lW / 4, 3 * lH / 4)
!= highResImage.getRGB(3 * hW / 4, 3 * hH / 4)) {
throw new RuntimeException("Wrong image color!");
}
}
frame.dispose();
}
}