1 /*
   2  * Copyright (c) 2001, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 4450319
  27  * @summary Checks that ImageReader.readAll(int, ImageReadParam) makes use of
  28  *          the ImageReadParam object
  29  */
  30 
  31 import java.awt.image.BufferedImage;
  32 import java.io.ByteArrayInputStream;
  33 import java.io.IOException;
  34 import java.util.Iterator;
  35 import java.util.Vector;
  36 
  37 import javax.imageio.IIOImage;
  38 import javax.imageio.ImageReadParam;
  39 import javax.imageio.ImageReader;
  40 import javax.imageio.ImageTypeSpecifier;
  41 import javax.imageio.metadata.IIOMetadata;
  42 import javax.imageio.spi.ImageReaderSpi;
  43 import javax.imageio.stream.MemoryCacheImageInputStream;
  44 
  45 public class ImageReaderReadAll {
  46 
  47     private final static byte[] ba = {};
  48 
  49     public static void main(String argv[]) {
  50         ImageReader ireader;
  51         ImageReadParam irp;
  52         IIOImage image;
  53         BufferedImage bi;
  54         BufferedImage bi_1;
  55         BufferedImage bi_2;
  56 
  57         ireader = new DummyImageReaderImpl(null);
  58         MemoryCacheImageInputStream mciis = new MemoryCacheImageInputStream
  59             (new ByteArrayInputStream(ba));
  60         ireader.setInput(mciis);
  61 
  62         irp = new ImageReadParam();
  63         irp.setDestination(new BufferedImage(10, 10,
  64                                              BufferedImage.TYPE_3BYTE_BGR));
  65         try {
  66             image = ireader.readAll(0, irp);
  67             bi_1 = ireader.read(0, irp);
  68             bi_2 = ireader.read(0);
  69         } catch (java.io.IOException ee) {
  70             throw new RuntimeException("Unexpected exception: " + ee);
  71         }
  72 
  73         bi = (BufferedImage)image.getRenderedImage();
  74         if (bi.getType() != bi_1.getType()) {
  75             throw new RuntimeException("Images have different type!");
  76         }
  77     }
  78 
  79 
  80     public static class DummyImageReaderImpl extends ImageReader {
  81 
  82         public DummyImageReaderImpl(ImageReaderSpi originatingProvider) {
  83             super(originatingProvider);
  84         }
  85 
  86         public BufferedImage read(int imageIndex, ImageReadParam param)
  87           throws IOException {
  88             if (input == null)
  89                 throw new IllegalStateException();
  90             if (imageIndex >= 1 || imageIndex < 0)
  91                 throw new IndexOutOfBoundsException();
  92             if (seekForwardOnly) {
  93                 if (imageIndex < minIndex)
  94                     throw new IndexOutOfBoundsException();
  95                 minIndex = imageIndex;
  96             }
  97 
  98             return getDestination(param, getImageTypes(imageIndex), 10, 15);
  99         }
 100 
 101         public Iterator getImageTypes(int imageIndex) throws IOException {
 102             if (input == null)
 103                 throw new IllegalStateException();
 104             if (imageIndex >= 1 || imageIndex < 0)
 105                 throw new IndexOutOfBoundsException();
 106 
 107             Vector imageTypes = new Vector();
 108             imageTypes.add(ImageTypeSpecifier.createFromBufferedImageType
 109                            (BufferedImage.TYPE_BYTE_GRAY ));
 110             return imageTypes.iterator();
 111         }
 112 
 113         public int getNumImages(boolean allowSearch) throws IOException {return 1;}
 114         public int getWidth(int imageIndex) throws IOException {return 1;}
 115         public int getHeight(int imageIndex) throws IOException {return 1;}
 116         public IIOMetadata getStreamMetadata() throws IOException {return null;}
 117         public IIOMetadata getImageMetadata(int imageIndex)
 118           throws IOException {return null;}
 119     }
 120 }