jdk-24/test/jdk/javax/imageio/plugins/png/CanEncodeShort.java
2017-09-12 19:03:39 +02:00

67 lines
2.3 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 4474819
* @summary Tests whether the PNGImageWriterSpi advertises that it is capable of
* writing images of TYPE_USHORT_565_RGB and TYPE_USHORT_555_RGB. The
* test fails if an exception is thrown.
*/
import java.awt.image.BufferedImage;
import java.util.Iterator;
import javax.imageio.ImageIO;
import javax.imageio.ImageTypeSpecifier;
public class CanEncodeShort {
private static final int[] types = new int[] {
BufferedImage.TYPE_USHORT_565_RGB,
BufferedImage.TYPE_USHORT_555_RGB,
};
private static final String[] typeNames = new String[] {
"TYPE_USHORT_565_RGB",
"TYPE_USHORT_555_RGB",
};
public static void main(String[] args) {
for (int i = 0; i < types.length; i++) {
BufferedImage img = new BufferedImage(32, 32, types[i]);
ImageTypeSpecifier spec =
ImageTypeSpecifier.createFromRenderedImage(img);
Iterator writers = ImageIO.getImageWriters(spec, "png");
if (!writers.hasNext()) {
throw new RuntimeException("Test failed: " +
"no PNG writer found for type " +
typeNames[i]);
}
}
}
}