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prsadhukprsadhuk
committedSep 24, 2024
8340367: Opensource few AWT image tests
Reviewed-by: prr
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‎test/jdk/java/awt/image/BufferedImage/GrayAATextTest.java

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/*
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* Copyright (c) 2000, 2024, 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 4309915
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* @library /java/awt/regtesthelpers
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* @build PassFailJFrame
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* @summary Check that Antialiased text drawn on a BYTE_GRAY image
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* resolves the color correctly
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* @run main/manual GrayAATextTest
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*/
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import java.awt.Color;
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import java.awt.Dimension;
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import java.awt.Font;
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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.RenderingHints;
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import java.awt.image.BufferedImage;
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public class GrayAATextTest extends Panel {
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public static final int WIDTH = 600;
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public static final int HEIGHT = 200;
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private static final String INSTRUCTIONS = """
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All of the strings in a given column should be drawn
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in the same color. If the bug is present, then the
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Antialiased strings will all be of a fixed color that
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is not the same as the other strings in their column.""";
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public static void main(String[] args) throws Exception {
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PassFailJFrame.builder()
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.title("GrayAATextTest Instructions")
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.instructions(INSTRUCTIONS)
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.rows((int)INSTRUCTIONS.lines().count() + 2)
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.columns(35)
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.testUI(GrayAATextTest::createTestUI)
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.build()
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.awaitAndCheck();
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}
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public void paint(Graphics g) {
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BufferedImage bi = new BufferedImage(WIDTH, HEIGHT,
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BufferedImage.TYPE_BYTE_GRAY);
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Graphics2D g2d = bi.createGraphics();
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g2d.setFont(new Font("Helvetica", Font.PLAIN, 24));
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g2d.setColor(Color.white);
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g2d.fillRect(0, 0, WIDTH / 2, HEIGHT);
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drawText(g2d, Color.black, "Black", 25);
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drawText(g2d, Color.lightGray, "Light Gray", 175);
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g2d.setColor(Color.black);
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g2d.fillRect(WIDTH / 2, 0, WIDTH / 2, HEIGHT);
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drawText(g2d, Color.white, "White", 325);
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drawText(g2d, Color.lightGray, "Light Gray", 475);
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g2d.dispose();
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g.drawImage(bi, 0, 0, null);
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}
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public void drawText(Graphics2D g2d, Color c, String colorname, int x) {
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g2d.setColor(c);
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g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
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RenderingHints.VALUE_ANTIALIAS_OFF);
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g2d.drawString(colorname, x, 50);
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g2d.drawString("Aliased", x, 100);
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g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
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RenderingHints.VALUE_ANTIALIAS_ON);
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g2d.drawString("Antialiased", x, 150);
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}
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public Dimension getPreferredSize() {
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return new Dimension(WIDTH, HEIGHT);
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}
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private static Frame createTestUI() {
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Frame f = new Frame("GrayAATextTest Frame");
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f.add(new GrayAATextTest());
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f.setSize(WIDTH, HEIGHT);
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return f;
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}
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}

‎test/jdk/java/awt/image/GrayAlpha.java

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/*
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* Copyright (c) 2003, 2024, 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 4243044
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* @summary This test should show two windows filled with checker
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* board pattern. The transparency should runs from left to right from
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* total transparent to total opaque.
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* @library /java/awt/regtesthelpers
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* @build PassFailJFrame
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* @run main/manual GrayAlpha
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*/
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import java.util.List;
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import java.awt.Frame;
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import java.awt.color.ColorSpace;
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import java.awt.Dimension;
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import java.awt.Graphics;
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import java.awt.Graphics2D;
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import java.awt.geom.AffineTransform;
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import java.awt.image.BufferedImage;
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import java.awt.image.ColorModel;
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import java.awt.image.ComponentColorModel;
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import java.awt.image.DataBuffer;
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import java.awt.image.Raster;
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import java.awt.image.WritableRaster;
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import java.awt.Point;
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import java.awt.Panel;
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import java.awt.Transparency;
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import java.awt.Window;
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public class GrayAlpha extends Panel {
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private static final String INSTRUCTIONS = """
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This test should show two windows filled with checker board
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vpattern. The transparency should runs from left to right from
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totally transparent to totally opaque. If either the pattern or
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the transparency is not shown correctly, click Fail, otherwise
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click Pass.""";
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BufferedImage bi;
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AffineTransform identityTransform = new AffineTransform();
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public static void main(String[] args) throws Exception {
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PassFailJFrame.builder()
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.title("GrayAlpha Instructions")
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.instructions(INSTRUCTIONS)
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.rows((int)INSTRUCTIONS.lines().count() + 2)
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.columns(35)
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.testUI(GrayAlpha::createTestUI)
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.build()
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.awaitAndCheck();
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}
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public GrayAlpha(int width, int height,
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boolean hasAlpha, boolean isAlphaPremultiplied,
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boolean useRGB) {
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boolean isAlphaPremuliplied = true;
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int bands = useRGB ? 3 : 1;
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bands = hasAlpha ? bands + 1 : bands;
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ColorSpace cs = useRGB ?
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ColorSpace.getInstance(ColorSpace.CS_sRGB) :
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ColorSpace.getInstance(ColorSpace.CS_GRAY);
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int transparency = hasAlpha ?
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Transparency.TRANSLUCENT : Transparency.OPAQUE;
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int[] bits = new int[bands];
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for (int i = 0; i < bands; i++) {
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bits[i] = 8;
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}
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ColorModel cm = new ComponentColorModel(cs,
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bits,
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hasAlpha,
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isAlphaPremultiplied,
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transparency,
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DataBuffer.TYPE_BYTE);
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WritableRaster wr =
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Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE,
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width, height, bands,
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new Point(0, 0));
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for (int b = 0; b < bands; b++) {
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for (int y = 0; y < height; y++) {
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for (int x = 0; x < width; x++) {
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int s;
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if (b != bands - 1 || !hasAlpha) {
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// Gray band(s), fill with a checkerboard pattern
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if (((x / 10) % 2) == ((y / 10) % 2)) {
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s = 255;
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} else {
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s = 0;
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}
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if (isAlphaPremultiplied) {
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int alpha = (x*255)/(width - 1);
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s = (s*alpha)/255;
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}
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} else {
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// Alpha band, increase opacity left to right
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s = (x*255)/(width - 1);
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}
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wr.setSample(x, y, b, s);
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}
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}
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}
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this.bi = new BufferedImage(cm, wr, isAlphaPremultiplied, null);
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}
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public Dimension getPreferredSize() {
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return new Dimension(bi.getWidth(), bi.getHeight());
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}
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public void paint(Graphics g) {
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if (bi != null) {
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((Graphics2D)g).drawImage(bi, 0, 0, null);
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}
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}
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public static Frame makeFrame(String title,
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int x, int y, int width, int height,
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boolean hasAlpha,
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boolean isAlphaPremultiplied,
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boolean useRGB) {
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Frame f = new Frame(title);
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f.add(new GrayAlpha(width, height,
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hasAlpha, isAlphaPremultiplied, useRGB));
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f.pack();
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f.setLocation(x, y);
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return f;
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}
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private static List<Window> createTestUI() {
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int width = 200;
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int height = 200;
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int x = 100;
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int y = 100;
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Frame f1 = makeFrame("Gray (non-premultiplied)",
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x, y, width, height,
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true, false, false);
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x += width + 20;
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Frame f2 = makeFrame("Gray (premultiplied)",
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x, y, width, height,
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true, true, false);
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return List.of(f1, f2);
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}
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}

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