russell@unturf.com
0a580b313d
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.
145 lines
4.6 KiB
Java
145 lines
4.6 KiB
Java
/*
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* Copyright (c) 2004, 2025, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4993274
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* @key headful
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* @requires (os.family != "mac")
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* @summary Verifies that managed image copies and transforms work properly
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* with the OGL pipeline when a background color is specified.
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* @run main/othervm -Dsun.java2d.opengl=True DrawImageBg
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* @run main/othervm DrawImageBg
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*/
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/*
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* @test
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* @bug 4993274
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* @key headful
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* @requires (os.family == "mac")
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* @summary Verifies that managed image copies and transforms work properly
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* with the OGL pipeline when a background color is specified.
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* @run main/othervm -Dsun.java2d.opengl=True DrawImageBg
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* @run main/othervm DrawImageBg
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*/
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import java.awt.AlphaComposite;
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import java.awt.Color;
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import java.awt.EventQueue;
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import java.awt.Frame;
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import java.awt.Graphics;
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import java.awt.Graphics2D;
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import java.awt.Panel;
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import java.awt.Point;
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import java.awt.Rectangle;
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import java.awt.Robot;
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import java.awt.Transparency;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import javax.imageio.ImageIO;
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public class DrawImageBg extends Panel {
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static volatile Frame frame;
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static volatile DrawImageBg test;
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public void paint(Graphics g) {
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Graphics2D g2d = (Graphics2D)g;
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g2d.setColor(Color.black);
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g2d.fillRect(0, 0, getWidth(), getHeight());
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BufferedImage img = getGraphicsConfiguration().createCompatibleImage(50, 50,
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Transparency.BITMASK);
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Graphics2D gimg = img.createGraphics();
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gimg.setComposite(AlphaComposite.Src);
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gimg.setColor(new Color(0, 0, 0, 0));
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gimg.fillRect(0, 0, 50, 50);
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gimg.setColor(Color.red);
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gimg.fillRect(10, 10, 30, 30);
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gimg.dispose();
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g2d.drawImage(img, 10, 10, Color.blue, null);
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// draw a second time to ensure that the cached copy is used
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g2d.drawImage(img, 80, 10, Color.blue, null);
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}
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static void createUI() {
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frame = new Frame("OpenGL DrawImageBg Test");
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test = new DrawImageBg();
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frame.add(test);
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frame.setSize(300, 300);
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frame.setLocationRelativeTo(null);
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frame.setVisible(true);
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}
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public static void main(String[] args) throws Exception {
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BufferedImage capture = null;
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Robot robot = new Robot();
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try {
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EventQueue.invokeAndWait(DrawImageBg::createUI);
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robot.waitForIdle();
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robot.delay(3000);
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// Grab the screen region
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Point pt1 = test.getLocationOnScreen();
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Rectangle rect = new Rectangle(pt1.x+80, pt1.y, 80, 80);
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capture = robot.createScreenCapture(rect);
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} finally {
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if (frame != null) {
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EventQueue.invokeAndWait(frame::dispose);
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}
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}
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if (capture == null) {
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throw new RuntimeException("Screen capture is null");
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}
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// Test inner and outer pixels
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int pixel1 = capture.getRGB(5, 10);
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if (pixel1 != 0xff0000ff) {
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saveImage(capture);
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throw new RuntimeException(getMsg("outer", pixel1));
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}
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int pixel2 = capture.getRGB(25, 25);
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if (pixel2 != 0xffff0000) {
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saveImage(capture);
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throw new RuntimeException(getMsg("inner", pixel2));
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}
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}
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static String getMsg(String r, int p1) {
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return "Failed: Incorrect color for " + r + " pixel: got " + Integer.toHexString(p1);
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}
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static void saveImage(BufferedImage img) {
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try {
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File file = new File("capture.png");
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ImageIO.write(img, "png", file);
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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