94 lines
3.1 KiB
Java
94 lines
3.1 KiB
Java
/*
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* Copyright (c) 2002, 2017, 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 4450894
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* @summary Tests if the JPEG writer properly encodes IndexColorModel images
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* that contain less than 8-bit indices (such as TYPE_BYTE_BINARY)
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*/
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import java.awt.Color;
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import java.awt.Graphics;
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import java.awt.image.BufferedImage;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import javax.imageio.ImageIO;
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public class ByteBinaryTest {
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private static final int[] expectedVals =
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{ 0xffffffff, 0xff000000, 0xffffffff };
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public static void main(String[] args) {
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BufferedImage bi = new BufferedImage(100, 100,
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BufferedImage.TYPE_BYTE_BINARY);
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Graphics g = bi.createGraphics();
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g.setColor(Color.white);
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g.fillRect(0, 0, 100, 100);
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g.setColor(Color.black);
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g.fillRect(20, 20, 40, 40);
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g.setColor(Color.white);
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g.fillRect(25, 25, 25, 25);
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g.dispose();
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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boolean success;
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try {
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success = ImageIO.write(bi, "jpeg", baos);
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} catch (IOException ioe) {
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throw new RuntimeException("Could not write JPEG to stream");
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}
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if (!success) {
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throw new RuntimeException("Could not find valid JPEG writer...");
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}
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byte[] bytearr = baos.toByteArray();
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ByteArrayInputStream bais = new ByteArrayInputStream(bytearr);
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BufferedImage bi2 = null;
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try {
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bi2 = ImageIO.read(bais);
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} catch (IOException ioe) {
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throw new RuntimeException("Could not read JPEG stream");
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}
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int[] actualVals = new int[3];
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actualVals[0] = bi2.getRGB(27, 5);
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actualVals[1] = bi2.getRGB(27, 22);
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actualVals[2] = bi2.getRGB(35, 35);
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for (int i = 0; i < actualVals.length; i++) {
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if (actualVals[i] != expectedVals[i]) {
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throw new RuntimeException("Pixel mismatch at index: " + i);
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}
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}
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}
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}
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