| /* |
| * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 4892259 |
| * |
| * @summary Verify that calls to IIOReadUpdateListener passStarted and |
| * passComplete are consistent. |
| * |
| * @run main GIFPassListenerTest |
| */ |
| |
| import java.awt.image.*; |
| import java.io.*; |
| import java.util.*; |
| import javax.imageio.*; |
| import javax.imageio.event.*; |
| import javax.imageio.stream.*; |
| |
| public class GIFPassListenerTest { |
| |
| private static ImageInputStream createTestImageStream(boolean progressive) throws IOException { |
| ByteArrayOutputStream output = new ByteArrayOutputStream(); |
| Iterator<ImageWriter> writers = ImageIO.getImageWritersByFormatName("gif"); |
| if (!writers.hasNext()) { |
| return null; |
| } |
| ImageWriter writer = writers.next(); |
| ImageWriteParam param = writer.getDefaultWriteParam(); |
| param.setProgressiveMode(progressive ? |
| ImageWriteParam.MODE_DEFAULT : ImageWriteParam.MODE_DISABLED); |
| ImageOutputStream imageOutput = ImageIO.createImageOutputStream(output); |
| writer.setOutput(imageOutput); |
| BufferedImage image = new BufferedImage(100, 100, BufferedImage.TYPE_INT_ARGB); |
| writer.write(null, new IIOImage(image, null, null), param); |
| imageOutput.flush(); |
| ByteArrayInputStream input = new ByteArrayInputStream(output.toByteArray()); |
| return ImageIO.createImageInputStream(input); |
| } |
| |
| private static void checkImage(boolean progressive) throws Exception { |
| ImageInputStream iis = createTestImageStream(progressive); |
| ImageReader reader = ImageIO.getImageReaders(iis).next(); |
| reader.setInput(iis); |
| ReadUpdateHandler handler = new ReadUpdateHandler(); |
| reader.addIIOReadUpdateListener(handler); |
| reader.readAll(null); |
| if (handler.isPassStarted) { |
| throw new RuntimeException("passStarted without passComplete."); |
| } |
| if (progressive && (handler.numPasses == 0)) { |
| throw new RuntimeException("passStarted wasn't called for progressive image"); |
| } |
| if (!progressive && (handler.numPasses != 0)) { |
| throw new RuntimeException("passStarted was called for non-progressive image"); |
| } |
| iis.close(); |
| } |
| |
| public static void main(String args[]) throws Exception { |
| checkImage(true); |
| checkImage(false); |
| } |
| |
| private static class ReadUpdateHandler implements IIOReadUpdateListener { |
| public boolean isPassStarted = false; |
| public int numPasses = 0; |
| |
| @Override |
| public void imageUpdate(ImageReader source, BufferedImage theImage, int minX, int minY, |
| int width, int height, int periodX, int periodY, int[] bands) { |
| } |
| |
| @Override |
| public void passStarted(ImageReader source, BufferedImage theImage, int pass, int minPass, |
| int maxPass, int minX, int minY, int periodX, int periodY, int[] bands) { |
| if (isPassStarted) { |
| throw new RuntimeException("reentered passStarted!"); |
| } |
| isPassStarted = true; |
| numPasses++; |
| } |
| |
| @Override |
| public void passComplete(ImageReader source, BufferedImage theImage) { |
| if (!isPassStarted) { |
| throw new RuntimeException("passComplete without passStarted!"); |
| } |
| isPassStarted = false; |
| } |
| |
| @Override |
| public void thumbnailPassStarted(ImageReader source, BufferedImage theThumbnail, int pass, |
| int minPass, int maxPass, int minX, int minY, int periodX, int periodY, int[] bands) { |
| } |
| |
| @Override |
| public void thumbnailPassComplete(ImageReader source, BufferedImage theThumbnail) { |
| } |
| |
| @Override |
| public void thumbnailUpdate(ImageReader source, BufferedImage theThumbnail, int minX, int minY, |
| int width, int height, int periodX, int periodY, int[] bands) { |
| } |
| } |
| } |