85 lines
2.8 KiB
Java
85 lines
2.8 KiB
Java
/*
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* Copyright (c) 2001, 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 4432615
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* @summary Tests progressive writing in the PNG encoder
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* @modules java.desktop/com.sun.imageio.plugins.png
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*/
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import java.awt.Color;
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import java.awt.Graphics2D;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import java.io.IOException;
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import java.util.Iterator;
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import java.util.Random;
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import javax.imageio.IIOImage;
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import javax.imageio.ImageIO;
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import javax.imageio.ImageWriteParam;
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import javax.imageio.ImageWriter;
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import javax.imageio.stream.ImageOutputStream;
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public class WriteProgressive {
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public static void main(String[] args) throws IOException {
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Iterator witer = ImageIO.getImageWritersByFormatName("png");
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ImageWriter w = (ImageWriter)witer.next();
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File f = File.createTempFile("WriteProgressive", ".png");
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ImageOutputStream ios = ImageIO.createImageOutputStream(f);
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w.setOutput(ios);
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BufferedImage bi = new BufferedImage(100, 100,
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BufferedImage.TYPE_3BYTE_BGR);
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Graphics2D g = bi.createGraphics();
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Random r = new Random(10);
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for (int i = 0; i < 10000; i++) {
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Color c =
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new Color(r.nextInt(256), r.nextInt(256), r.nextInt(256));
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g.setColor(c);
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g.fillRect(r.nextInt(100), r.nextInt(100), 1, 1);
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}
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IIOImage iioimage = new IIOImage(bi, null, null);
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ImageWriteParam param = w.getDefaultWriteParam();
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param.setProgressiveMode(ImageWriteParam.MODE_DEFAULT);
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try {
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w.write(null, iioimage, param);
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} catch (NullPointerException npe) {
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throw new RuntimeException("Got NPE during write!");
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}
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ios.close();
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BufferedImage bi2 = ImageIO.read(f);
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f.delete();
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ImageCompare.compare(bi, bi2);
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}
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}
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