test/jdk/javax/imageio/ImageReaderReadAll.java
changeset 47216 71c04702a3d5
parent 45351 f7f615a3aaff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/javax/imageio/ImageReaderReadAll.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 2001, 2017, 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 4450319
+ * @summary Checks that ImageReader.readAll(int, ImageReadParam) makes use of
+ *          the ImageReadParam object
+ */
+
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.util.Iterator;
+import java.util.Vector;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageReadParam;
+import javax.imageio.ImageReader;
+import javax.imageio.ImageTypeSpecifier;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.spi.ImageReaderSpi;
+import javax.imageio.stream.MemoryCacheImageInputStream;
+
+public class ImageReaderReadAll {
+
+    private final static byte[] ba = {};
+
+    public static void main(String argv[]) {
+        ImageReader ireader;
+        ImageReadParam irp;
+        IIOImage image;
+        BufferedImage bi;
+        BufferedImage bi_1;
+        BufferedImage bi_2;
+
+        ireader = new DummyImageReaderImpl(null);
+        MemoryCacheImageInputStream mciis = new MemoryCacheImageInputStream
+            (new ByteArrayInputStream(ba));
+        ireader.setInput(mciis);
+
+        irp = new ImageReadParam();
+        irp.setDestination(new BufferedImage(10, 10,
+                                             BufferedImage.TYPE_3BYTE_BGR));
+        try {
+            image = ireader.readAll(0, irp);
+            bi_1 = ireader.read(0, irp);
+            bi_2 = ireader.read(0);
+        } catch (java.io.IOException ee) {
+            throw new RuntimeException("Unexpected exception: " + ee);
+        }
+
+        bi = (BufferedImage)image.getRenderedImage();
+        if (bi.getType() != bi_1.getType()) {
+            throw new RuntimeException("Images have different type!");
+        }
+    }
+
+
+    public static class DummyImageReaderImpl extends ImageReader {
+
+        public DummyImageReaderImpl(ImageReaderSpi originatingProvider) {
+            super(originatingProvider);
+        }
+
+        public BufferedImage read(int imageIndex, ImageReadParam param)
+          throws IOException {
+            if (input == null)
+                throw new IllegalStateException();
+            if (imageIndex >= 1 || imageIndex < 0)
+                throw new IndexOutOfBoundsException();
+            if (seekForwardOnly) {
+                if (imageIndex < minIndex)
+                    throw new IndexOutOfBoundsException();
+                minIndex = imageIndex;
+            }
+
+            return getDestination(param, getImageTypes(imageIndex), 10, 15);
+        }
+
+        public Iterator getImageTypes(int imageIndex) throws IOException {
+            if (input == null)
+                throw new IllegalStateException();
+            if (imageIndex >= 1 || imageIndex < 0)
+                throw new IndexOutOfBoundsException();
+
+            Vector imageTypes = new Vector();
+            imageTypes.add(ImageTypeSpecifier.createFromBufferedImageType
+                           (BufferedImage.TYPE_BYTE_GRAY ));
+            return imageTypes.iterator();
+        }
+
+        public int getNumImages(boolean allowSearch) throws IOException {return 1;}
+        public int getWidth(int imageIndex) throws IOException {return 1;}
+        public int getHeight(int imageIndex) throws IOException {return 1;}
+        public IIOMetadata getStreamMetadata() throws IOException {return null;}
+        public IIOMetadata getImageMetadata(int imageIndex)
+          throws IOException {return null;}
+    }
+}