109 lines
3.9 KiB
Java
109 lines
3.9 KiB
Java
/*
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* Copyright (c) 2005, 2017, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 6307618
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* @summary Test verifies that GIF image writer updates the dimension of the
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* logical screen according to image dimension
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* @modules java.desktop/com.sun.imageio.plugins.gif
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*/
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import java.awt.Color;
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import java.awt.Graphics2D;
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import java.awt.image.BufferedImage;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import javax.imageio.IIOImage;
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import javax.imageio.ImageIO;
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import javax.imageio.ImageReader;
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import javax.imageio.ImageTypeSpecifier;
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import javax.imageio.ImageWriteParam;
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import javax.imageio.ImageWriter;
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import javax.imageio.metadata.IIOMetadata;
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import javax.imageio.stream.ImageInputStream;
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import javax.imageio.stream.ImageOutputStream;
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import com.sun.imageio.plugins.gif.GIFStreamMetadata;
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public class LogicalScreenDimensionTest {
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public static void main(String[] args) throws IOException {
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String format = "GIF";
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ImageWriter writer =
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ImageIO.getImageWritersByFormatName(format).next();
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if (writer == null) {
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throw new RuntimeException("No available writers for " + format);
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}
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BufferedImage img = createTestImage(100, 100, BufferedImage.TYPE_BYTE_GRAY);
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ImageWriteParam p = writer.getDefaultWriteParam();
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ImageTypeSpecifier type =
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ImageTypeSpecifier.createFromRenderedImage(img);
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IIOMetadata inImageMetadata =
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writer.getDefaultImageMetadata(type, p);
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IIOMetadata inStreamMetadata = writer.getDefaultStreamMetadata(p);
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// write and read image
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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ImageOutputStream ios = ImageIO.createImageOutputStream(baos);
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writer.setOutput(ios);
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writer.write(inStreamMetadata, new IIOImage(img, null, inImageMetadata), p);
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ios.flush();
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ios.close();
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// read result
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ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
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ImageInputStream iis = ImageIO.createImageInputStream(bais);
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ImageReader reader = ImageIO.getImageReader(writer);
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reader.setInput(iis);
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IIOMetadata outStreamMetadata = reader.getStreamMetadata();
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GIFStreamMetadata gifStreamMetadata = (GIFStreamMetadata)outStreamMetadata;
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if (gifStreamMetadata.logicalScreenWidth != img.getWidth() ||
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gifStreamMetadata.logicalScreenHeight != img.getHeight()) {
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throw new RuntimeException("Test failed due to wrong logical screen dimension.");
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}
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}
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private static BufferedImage createTestImage(int w, int h, int type) {
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BufferedImage res = new BufferedImage(w, h, type);
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Graphics2D g = res.createGraphics();
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g.setColor(Color.white);
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g.fillRect(0, 0, w, h);
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g.setColor(Color.black);
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g.fillRect(w/4, h/4, w/2, h/2);
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return res;
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}
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}
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