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/*
* Copyright (c) 2022, 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.
*/
/*
*
* This test verifies that using the built-in ImageI/O JPEG plugin that JPEG images
* that are in a CMYK ColorSpace can be read into a BufferedImage using the convemience
* APIS and that and the colours are properly interpreted.
* Since there is no standard JDK CMYK ColorSpace, this requires that either the image
* contain an ICC_Profile which can be used by the plugin to create an ICC_ColorSpace
* or that the plugin provides a suitable default CMYK ColorSpace instance by some other means.
*
* The test further verifies that the resultant BufferedImage will be re-written as a CMYK
* BufferedImage. It can do this so long as the BufferedImage has that CMYK ColorSpace
* used by its ColorModel.
*
* The verification requires re-reading again the re-written image and checking the
* re-read image still has a CMYK ColorSpace and the same colours.
*
* Optionally - not for use in the test harness - the test can be passed a parameter
* -display to create a UI which renders all the images the test is
* verifying so it can be manually verified
*/
/*
* @test
* @bug 8274735
* @summary Verify CMYK JPEGs can be read and written
*/
import java.awt.Color;
import static java.awt.Color.*;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.image.BufferedImage;
import java.awt.image.ColorModel;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
public class CMYKJPEGTest {
static String[] fileNames = {
"black_cmyk.jpg",
"white_cmyk.jpg",
"gray_cmyk.jpg",
"red_cmyk.jpg",
"blue_cmyk.jpg",
"green_cmyk.jpg",
"cyan_cmyk.jpg",
"magenta_cmyk.jpg",
"yellow_cmyk.jpg",
};
static Color[] colors = {
black,
white,
gray,
red,
blue,
green,
cyan,
magenta,
yellow,
};
static boolean display;
static BufferedImage[] readImages;
static BufferedImage[] writtenImages;
static int imageIndex = 0;
public static void main(String[] args) throws Exception {
if (args.length > 0) {
display = "-display".equals(args[0]);
}
String sep = System.getProperty("file.separator");
String dir = System.getProperty("test.src", ".");
String prefix = dir+sep;
readImages = new BufferedImage[fileNames.length];
writtenImages = new BufferedImage[fileNames.length];
for (String fileName : fileNames) {
String color = fileName.replace("_cmyk.jpg", "");
test(prefix+fileName, color, imageIndex++);
}
if (display) {
SwingUtilities.invokeAndWait(() -> createUI());
}
}
static void test(String fileName, String color, int index)
throws IOException {
readImages[index] = ImageIO.read(new File(fileName));
verify(readImages[index], color, colors[index]);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ImageIO.write(readImages[index], "jpg", baos);
ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
writtenImages[index] = ImageIO.read(bais);
verify(writtenImages[index], color, colors[index]);
}
static void verify(BufferedImage img, String colorName, Color c) {
ColorModel cm = img.getColorModel();
int tc = cm.getNumComponents();
int cc = cm.getNumColorComponents();
if (cc != 4 || tc != 4) {
throw new RuntimeException("Unexpected num comp for " + img);
}
int rgb = img.getRGB(0,0);
int c_red = c.getRed();
int c_green = c.getGreen();
int c_blue = c.getBlue();
int i_red = (rgb & 0x0ff0000) >> 16;
int i_green = (rgb & 0x000ff00) >> 8;
int i_blue = (rgb & 0x00000ff);
int tol = 16;
if ((Math.abs(i_red - c_red) > tol) ||
(Math.abs(i_green - c_green) > tol) ||
(Math.abs(i_blue - c_blue) > tol))
{
System.err.println("red="+i_red+" green="+i_green+" blue="+i_blue);
throw new RuntimeException("Too different " + img + " " + colorName + " " + c);
}
}
static class ImageComp extends JComponent {
BufferedImage img;
ImageComp(BufferedImage img) {
this.img = img;
}
public Dimension getPreferredSize() {
return new Dimension(img.getWidth(), img.getHeight());
}
public Dimension getMinimumSize() {
return getPreferredSize();
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
g.drawImage(img, 0, 0, null);
}
}
static void createUI() {
JFrame f = new JFrame("CMYK JPEG Test");
JPanel p = new JPanel();
p.setLayout(new GridLayout(3, colors.length, 10, 10));
for (String s : fileNames) {
p.add(new JLabel(s.replace("_cmyk.jpg", "")));
}
for (BufferedImage i : readImages) {
p.add(new ImageComp(i));
}
for (BufferedImage i : writtenImages) {
p.add(new ImageComp(i));
}
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.add(p);
f.pack();
f.setVisible(true);
}
}
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