93 lines
3.3 KiB
Java
93 lines
3.3 KiB
Java
/*
|
|
* Copyright (c) 2002, 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 4450894
|
|
* @summary Tests if the JPEGImageWriter allows images with > 8-bit samples to
|
|
* be written. Also tests the JPEGImageWriterSpi.canEncodeImage()
|
|
* mechanism for this same behavior.
|
|
*/
|
|
|
|
import java.awt.image.BufferedImage;
|
|
import java.io.ByteArrayOutputStream;
|
|
import java.io.IOException;
|
|
import java.util.Iterator;
|
|
|
|
import javax.imageio.ImageIO;
|
|
import javax.imageio.ImageTypeSpecifier;
|
|
import javax.imageio.ImageWriter;
|
|
import javax.imageio.stream.ImageOutputStream;
|
|
|
|
public class UshortGrayTest {
|
|
|
|
public static void main(String[] args) {
|
|
Iterator iter;
|
|
BufferedImage bi = new BufferedImage(10, 10,
|
|
BufferedImage.TYPE_USHORT_GRAY);
|
|
|
|
// Part 1: ensure that JPEGImageWriter throws an exception if it
|
|
// encounters an image with 16-bit samples
|
|
ImageWriter writer = null;
|
|
iter = ImageIO.getImageWritersByFormatName("jpeg");
|
|
if (iter.hasNext()) {
|
|
writer = (ImageWriter)iter.next();
|
|
} else {
|
|
throw new RuntimeException("No JPEG reader found");
|
|
}
|
|
|
|
ByteArrayOutputStream baos = new ByteArrayOutputStream();
|
|
ImageOutputStream ios = null;
|
|
boolean exceptionThrown = false;
|
|
|
|
try {
|
|
ios = ImageIO.createImageOutputStream(baos);
|
|
} catch (IOException ioe) {
|
|
throw new RuntimeException("Could not create ImageOutputStream");
|
|
}
|
|
|
|
try {
|
|
writer.setOutput(ios);
|
|
writer.write(bi);
|
|
} catch (IOException ioe) {
|
|
exceptionThrown = true;
|
|
}
|
|
|
|
if (!exceptionThrown) {
|
|
throw new RuntimeException("JPEG writer should not be able to " +
|
|
"write USHORT_GRAY images");
|
|
}
|
|
|
|
// Part 2: ensure that JPEGImageWriterSpi.canEncodeImage() returns
|
|
// false for images with 16-bit samples
|
|
ImageTypeSpecifier its =
|
|
ImageTypeSpecifier.createFromRenderedImage(bi);
|
|
|
|
iter = ImageIO.getImageWriters(its, "jpeg");
|
|
if (iter.hasNext()) {
|
|
throw new RuntimeException("JPEG writer should not be available" +
|
|
" for USHORT_GRAY images");
|
|
}
|
|
}
|
|
}
|