72f1f20605
8198411: [TEST_BUG] Two java2d tests are unstable in mach5 Skip testing VolatileImage if IndexColorModel is detected Reviewed-by: prr, serb
242 lines
8.6 KiB
Java
242 lines
8.6 KiB
Java
/*
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* Copyright (c) 2001, 2019, 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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import java.awt.BasicStroke;
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import java.awt.Color;
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import java.awt.Graphics;
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import java.awt.Graphics2D;
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import java.awt.GraphicsConfiguration;
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import java.awt.GraphicsEnvironment;
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import java.awt.Image;
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import java.awt.image.BufferedImage;
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import java.awt.image.IndexColorModel;
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import java.awt.image.VolatileImage;
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import java.io.File;
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import java.io.IOException;
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import java.util.Arrays;
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import java.util.stream.Collectors;
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import javax.imageio.ImageIO;
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import static java.awt.image.BufferedImage.TYPE_INT_RGB;
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/*
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* @test
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* @bug 4469881 8217263 8218682
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* @key headful
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* @summary Verifies that dashed rectangles drawn to the screen line
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* up with their undashed counterparts
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* @author flar
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* @run main/othervm -Dsun.java2d.uiScale=1 DashOffset
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*/
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public class DashOffset {
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private static final BasicStroke dash =
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new BasicStroke(1.0f, BasicStroke.CAP_BUTT,
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BasicStroke.JOIN_MITER, 10.0f,
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new float[] {2.0f, 2.0f}, 0.0f);
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private static final Color COLOR1 = Color.BLUE;
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private static final Color COLOR2 = Color.GREEN;
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private static final Color BACKGROUND = Color.WHITE;
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private static final int WIDTH = 20;
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private static final int HEIGHT = 20;
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private static final int OFFSET = 2;
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private static final int MAX_DASH_LENGTH = 3;
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public static void main(String[] argv) throws Exception {
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final boolean saveImage = argv.length > 0 && "-save".equals(argv[0]);
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final BufferedImage img = new BufferedImage(WIDTH, HEIGHT,
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TYPE_INT_RGB);
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try {
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draw(img);
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validate(img);
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} finally {
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if (saveImage) {
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save(img, "bufferedImage.png");
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}
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}
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BufferedImage snapshot = null;
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try {
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final GraphicsConfiguration gc =
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GraphicsEnvironment.getLocalGraphicsEnvironment()
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.getDefaultScreenDevice()
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.getDefaultConfiguration();
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if (gc.getColorModel() instanceof IndexColorModel) {
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System.err.println("Skipping VolatileImage because of IndexColorModel");
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return;
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}
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VolatileImage vi = gc.createCompatibleVolatileImage(WIDTH, HEIGHT);
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int attempt = 0;
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do {
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vi.validate(gc);
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draw(vi);
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snapshot = vi.getSnapshot();
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} while (vi.contentsLost() && ++attempt <= 10);
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if (attempt > 10) {
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throw new RuntimeException("Too many attempts: " + attempt);
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}
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validate(snapshot);
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} finally {
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if (saveImage && snapshot != null) {
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save(snapshot, "volatileImage.png");
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}
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}
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}
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private static void draw(final Image img) {
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Graphics g = img.getGraphics();
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g.setColor(BACKGROUND);
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g.fillRect(0, 0, WIDTH, HEIGHT);
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g.setColor(COLOR1);
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g.drawRect(OFFSET, OFFSET, WIDTH - OFFSET * 2, HEIGHT - OFFSET * 2);
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g.setColor(COLOR2);
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g.clipRect(OFFSET, OFFSET, WIDTH - OFFSET * 2 + 1, HEIGHT - OFFSET * 2 + 1);
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((Graphics2D) g).setStroke(dash);
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g.drawRect(OFFSET, OFFSET, WIDTH - OFFSET * 2, HEIGHT - OFFSET * 2);
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g.dispose();
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}
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private static void validate(final BufferedImage img) {
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checkHorizontalLine(img, OFFSET);
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checkHorizontalLine(img, HEIGHT - OFFSET);
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checkVerticalLine(img, OFFSET);
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checkVerticalLine(img, WIDTH - OFFSET);
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checkCorners(img);
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}
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private static void checkHorizontalLine(final BufferedImage img,
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final int y) {
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int prev = img.getRGB(OFFSET, y);
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int curr;
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int count = 1;
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checkColor(OFFSET, y, prev, COLOR1, COLOR2);
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for (int x = OFFSET + 1; x <= WIDTH - OFFSET; x++) {
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curr = img.getRGB(x, y);
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if (curr != prev) {
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checkColor(x, y, curr, COLOR1, COLOR2);
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checkCount(x, y, count);
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prev = curr;
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count = 1;
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} else {
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count++;
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}
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if (x < WIDTH - OFFSET) {
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checkColor(x, y - 1, img.getRGB(x, y - 1), BACKGROUND);
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checkColor(x, y + 1, img.getRGB(x, y + 1), BACKGROUND);
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}
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}
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checkCount(WIDTH - OFFSET, y, count);
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}
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private static void checkVerticalLine(final BufferedImage img,
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final int x) {
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int prev = img.getRGB(x, OFFSET);
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checkColor(x, OFFSET, prev, COLOR1, COLOR2);
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int count = 1;
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for (int y = OFFSET + 1; y <= HEIGHT - OFFSET; y++) {
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int curr = img.getRGB(x, y);
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if (curr != prev) {
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checkColor(x, y, curr, COLOR1, COLOR2);
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checkCount(x, y, count);
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prev = curr;
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count = 1;
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} else {
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count++;
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}
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if (y < HEIGHT - OFFSET) {
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checkColor(x - 1, y, img.getRGB(x - 1, y), BACKGROUND);
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checkColor(x + 1, y, img.getRGB(x + 1, y), BACKGROUND);
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}
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}
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checkCount(x, HEIGHT - OFFSET, count);
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}
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private static void checkCorners(final BufferedImage img) {
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int[][] corners = {
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{OFFSET - 1, OFFSET - 1},
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{OFFSET, OFFSET - 1},
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{OFFSET - 1, OFFSET + 1},
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{OFFSET - 1, HEIGHT - OFFSET},
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{OFFSET - 1, HEIGHT - OFFSET + 1},
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{OFFSET, HEIGHT - OFFSET + 1},
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{WIDTH - OFFSET, OFFSET - 1},
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{WIDTH - OFFSET + 1, OFFSET - 1},
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{WIDTH - OFFSET + 1, OFFSET},
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{WIDTH - OFFSET + 1, HEIGHT - OFFSET},
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{WIDTH - OFFSET + 1, HEIGHT - OFFSET + 1},
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{WIDTH - OFFSET, HEIGHT - OFFSET + 1},
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};
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for (int[] corner : corners) {
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int color = img.getRGB(corner[0], corner[1]);
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checkColor(corner[0], corner[1], color, BACKGROUND);
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}
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}
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private static void checkColor(final int x, final int y,
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final int color,
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final Color... validColors) {
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checkColor(x, y, color, Arrays.stream(validColors)
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.mapToInt(Color::getRGB)
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.toArray());
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}
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private static void checkColor(final int x, final int y,
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final int color,
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final int... validColors) {
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for (int valid : validColors) {
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if (color == valid) {
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return;
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}
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}
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throw new RuntimeException("Unexpected color at " + x + ", " + y
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+ ": " + Integer.toHexString(color) + "; expected: "
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+ Arrays.stream(validColors)
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.mapToObj(Integer::toHexString)
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.collect(Collectors.joining(", ")));
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}
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private static void checkCount(final int x, final int y, final int count) {
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if (count > MAX_DASH_LENGTH) {
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throw new RuntimeException("Dash is longer than " + MAX_DASH_LENGTH
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+ " at " + x + ", " + y);
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}
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}
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private static void save(final BufferedImage img,
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final String fileName) throws IOException {
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ImageIO.write(img, "png", new File(fileName));
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}
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}
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