124 lines
4.2 KiB
Java
124 lines
4.2 KiB
Java
/*
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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 4259548
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* @summary tests that MemoryImageSource correctly handles images with offsets
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* @library /java/awt/regtesthelpers
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* @build PassFailJFrame
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* @run main/manual ImageOffsetTest
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*/
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import java.awt.Frame;
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import java.awt.Graphics;
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import java.awt.Image;
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import java.awt.Panel;
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import java.awt.Toolkit;
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import java.awt.image.ColorModel;
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import java.awt.image.IndexColorModel;
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import java.awt.image.MemoryImageSource;
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public class ImageOffsetTest {
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static int height = 100;
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static int width = 100;
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static int levels = 3;
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static IndexColorModel cm;
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static Image image;
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static boolean first = true;
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static byte[] db = new byte[height * width * levels] ;
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private static final String INSTRUCTIONS = """
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If on the appeared 'Test frame' all color squares are of one color
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test failed, otherwise it's passed.""";
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public static void main(String[] args) throws Exception {
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PassFailJFrame.builder()
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.title("ImageOffsetTest")
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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(ImageOffsetTest::createUI)
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.build()
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.awaitAndCheck();
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}
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private static Frame createUI() {
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Frame frame = new Frame("ImageOffset Frame");
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frame.add(new Panel() {
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public void paint(Graphics g) {
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for ( int i=0 ; i<3 ; i++ ) {
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g.drawImage(
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generateBuggyImage(i * width * height), 10 + i * 110, 10, null);
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}
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}
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});
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frame.setSize(400, 200);
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frame.setLocation(300, 200);
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createColorModel();
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int l = 0;
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for (int k = 0; k < levels; k++) {
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for (int i = 0; i < height; i++) {
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for (int j = 0; j < width; j++) {
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if( k == 0) {
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db[l] = (byte)(70 & 0xff) ;
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}
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if (k == 1) {
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db[l] = (byte)(150 & 0xff) ;
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}
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if (k == 2) {
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db[l] = (byte)(230 & 0xff) ;
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}
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l++ ;
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}
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}
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}
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return frame;
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}
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private static void createColorModel() {
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byte[] red = new byte[256];
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byte[] green = new byte[256];
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byte[] blue = new byte[256];
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for (int i = 0; i < 256; i++) {
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red[i] = (byte)(i & 0xff);
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//green[i] = (byte)( i & 0xff ) ;
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blue[i] = (byte)( i & 0xff ) ;
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//commented out green so I could get purple
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}
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cm = new IndexColorModel( 8, 256, red, green, blue ) ;
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}
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private static Image generateBuggyImage(int offset) {
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// Initialize the database, Three slices, different shades of grey
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// Here the image is created using the offset,
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return Toolkit.getDefaultToolkit().createImage(
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new MemoryImageSource(width, height, (ColorModel)cm,
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db, offset, width));
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}
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}
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