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/*
* Copyright (c) 2003, 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 4929367
* @summary tests what BMP image was decoded correctly if destination buffered
* image is bigger than source image
*/
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.Iterator;
import javax.imageio.ImageIO;
import javax.imageio.ImageReadParam;
import javax.imageio.ImageReader;
import javax.imageio.ImageTypeSpecifier;
import javax.imageio.ImageWriter;
public class WbmpBigDestinationTest {
static String format = "WBMP";
public static void main(String[] args) {
try {
BufferedImage src = new BufferedImage(100, 100,
BufferedImage.TYPE_BYTE_BINARY);
Graphics2D g = src.createGraphics();
g.setColor(Color.white);
g.fillRect(0,0,100, 100);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ImageWriter iw =
(ImageWriter)ImageIO.getImageWritersByFormatName(format).next();
if (iw == null) {
throw new RuntimeException("No writer available. Test failed.");
}
iw.setOutput(ImageIO.createImageOutputStream(baos));
iw.write(src);
byte[] data = baos.toByteArray();
ImageReader ir =
(ImageReader)ImageIO.getImageReadersByFormatName(format).next();
ir.setInput(
ImageIO.createImageInputStream(
new ByteArrayInputStream(data)));
Iterator specifiers = ir.getImageTypes(0);
ImageTypeSpecifier typeSpecifier = null;
if (specifiers.hasNext()) {
typeSpecifier = (ImageTypeSpecifier) specifiers.next();
}
ImageReadParam param = new ImageReadParam();
BufferedImage dst = typeSpecifier.createBufferedImage(200, 200);
param.setDestination(dst);
ir.read(0, param);
checkResults(src,dst);
} catch (IOException e) {
e.printStackTrace();
throw new RuntimeException("Unexpected exception. Test failed.");
}
}
private static void checkResults(BufferedImage src, BufferedImage dst) {
for(int x=0; x<src.getWidth(); x++) {
for(int y=0; y<src.getHeight(); y++) {
int srcRgb = src.getRGB(x,y);
int dstRgb = dst.getRGB(x,y);
if (srcRgb != dstRgb) {
throw new RuntimeException("Images are different at point ["
+ x + "," + y + "]");
}
}
}
}
}
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