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/*
* Copyright (c) 2005, 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 6297016 6294960 6294965 6294984
* @summary Test verifies that buffered images are written correctly if
* compression BI_BITFIELDS is used
*/
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.color.ColorSpace;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import javax.imageio.IIOImage;
import javax.imageio.ImageIO;
import javax.imageio.ImageReader;
import javax.imageio.ImageWriteParam;
import javax.imageio.ImageWriter;
public class TestCompressionBI_BITFIELDS {
protected String format = "BMP";
protected ImageReader reader;
protected ImageWriter writer;
protected boolean doSave = true;
Color[] colors = {
Color.red, Color.green, Color.blue,
Color.yellow, Color.white, Color.black};
int dx = 50;
int h = 200;
public TestCompressionBI_BITFIELDS() {
this("BMP");
}
public TestCompressionBI_BITFIELDS(String format) {
this.format = format;
reader = ImageIO.getImageReadersByFormatName(format).next();
writer = ImageIO.getImageWritersByFormatName(format).next();
}
protected ImageWriteParam prepareWriteParam(BufferedImage src) {
ImageWriteParam wparam = writer.getDefaultWriteParam();
wparam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
wparam.setCompressionType("BI_BITFIELDS");
return wparam;
}
public BufferedImage writeAndRead(BufferedImage src) throws IOException {
writer.reset();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
writer.setOutput(ImageIO.createImageOutputStream(baos));
ImageWriteParam wparam = prepareWriteParam(src);
IIOImage img = new IIOImage(src, null, null);
writer.write(null, img, wparam);
if (doSave) {
// save images to file in order to be able to check
// that image is well-formed using standard windows tools.
File f = File.createTempFile("wr_test_", "." + format, new File("."));
System.out.println("Save to file: " + f.getCanonicalPath());
FileOutputStream fos = new FileOutputStream(f);
fos.write(baos.toByteArray());
fos.flush();
fos.close();
}
// read result
reader.reset();
ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
reader.setInput(ImageIO.createImageInputStream(bais));
return reader.read(0);
}
public static void main(String[] args) throws IOException {
// buffered image types listed below can be saved as BI_BITFIELDS BMP
int[] types = {BufferedImage.TYPE_3BYTE_BGR,
BufferedImage.TYPE_USHORT_555_RGB,
BufferedImage.TYPE_USHORT_565_RGB,
BufferedImage.TYPE_BYTE_GRAY,
BufferedImage.TYPE_BYTE_BINARY,
BufferedImage.TYPE_BYTE_INDEXED,
BufferedImage.TYPE_INT_BGR,
BufferedImage.TYPE_INT_RGB};
for (int i = 0; i < types.length; i++) {
System.out.println("Test image " + types[i]);
TestCompressionBI_BITFIELDS t = new TestCompressionBI_BITFIELDS();
BufferedImage src =
t.createTestImage(types[i]);
System.out.println("Image for test: " + src);
System.out.println("SampleModel: " + src.getSampleModel());
BufferedImage dst = null;
try {
dst = t.writeAndRead(src);
} catch (IOException e) {
e.printStackTrace(System.out);
}
t.compareImages(src, dst);
}
}
protected BufferedImage createTestImage(int type) {
BufferedImage bimg = new BufferedImage(dx * colors.length, h, type);
Graphics2D g = bimg.createGraphics();
for (int i = 0; i < colors.length; i++) {
g.setColor(colors[i]);
g.fillRect(dx * i, 0, dx, h);
}
return bimg;
}
protected void compareImages(BufferedImage src, BufferedImage dst) {
ColorSpace srcCS = src.getColorModel().getColorSpace();
ColorSpace dstCS = dst.getColorModel().getColorSpace();
if (!srcCS.equals(dstCS) && srcCS.getType() == ColorSpace.TYPE_GRAY) {
System.out.println("Workaround color difference with GRAY.");
BufferedImage tmp =
new BufferedImage(src.getWidth(), src.getHeight(),
BufferedImage.TYPE_INT_RGB);
Graphics g = tmp.createGraphics();
g.drawImage(src, 0, 0, null);
src = tmp;
}
int y = h / 2;
for (int i = 0; i < colors.length; i++) {
int x = dx * i + dx / 2;
int srcRgb = src.getRGB(x, y);
int dstRgb = dst.getRGB(x, y);
if (srcRgb != dstRgb) {
throw new RuntimeException("Test failed due to color difference: " +
"src_pixel=" + Integer.toHexString(srcRgb) +
"dst_pixel=" + Integer.toHexString(dstRgb));
}
}
}
}
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