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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 6324581
* @summary Test verifies that RGB images are written to animated GIF image use
* local color table if image palette is not equals to the global color
* table
* @modules java.desktop/com.sun.imageio.plugins.gif
*/
import java.awt.Color;
import java.awt.Graphics2D;
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 java.util.ArrayList;
import javax.imageio.IIOImage;
import javax.imageio.ImageIO;
import javax.imageio.ImageReader;
import javax.imageio.ImageTypeSpecifier;
import javax.imageio.ImageWriteParam;
import javax.imageio.ImageWriter;
import javax.imageio.metadata.IIOMetadata;
import javax.imageio.stream.ImageOutputStream;
import com.sun.imageio.plugins.gif.GIFImageMetadata;
public class RGBAnimationTest {
protected static String format = "GIF";
protected static boolean doSave = true;
Frame[] frames;
ImageWriter writer;
ImageReader reader;
public static void main(String[] args) throws IOException {
RGBAnimationTest test = new RGBAnimationTest();
test.doTest();
}
/** Creates a new instance of RGBAnimationTest */
public RGBAnimationTest() {
frames = new Frame[4];
frames[0] = new Frame(new Color[] {Color.red, Color.green});
frames[1] = new Frame(new Color[] {Color.green, Color.cyan});
frames[2] = new Frame(new Color[] {Color.cyan, Color.yellow});
frames[3] = new Frame(new Color[] {Color.yellow, Color.red});
writer = ImageIO.getImageWritersByFormatName(format).next();
reader = ImageIO.getImageReadersByFormatName(format).next();
}
public void doTest() throws IOException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
writer.reset();
ImageOutputStream ios = ImageIO.createImageOutputStream(baos);
writer.setOutput(ios);
ImageWriteParam wparam = prepareWriteParam();
IIOMetadata streamMetadata = prepareStreamMetadata(wparam);
writer.prepareWriteSequence(streamMetadata);
for (int i = 0; i < frames.length; i++) {
BufferedImage src = frames[i].getImage();
IIOMetadata imageMetadata = prepareImageMetadata(i, src, wparam);
IIOImage img = new IIOImage(src, null, imageMetadata);
writer.writeToSequence(img, wparam);
}
writer.endWriteSequence();
ios.flush();
ios.close();
if (doSave) {
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));
int minIndex = reader.getMinIndex();
int numImages = reader.getNumImages(true);
for (int i = 0; i < numImages; i++) {
BufferedImage dst = reader.read(i + minIndex);
frames[i].checkResult(dst);
}
}
protected IIOMetadata prepareImageMetadata(int i, BufferedImage img, ImageWriteParam wparam) {
GIFImageMetadata idata = (GIFImageMetadata)
writer.getDefaultImageMetadata(ImageTypeSpecifier.createFromRenderedImage(img), wparam);
idata.delayTime = 100;
idata.disposalMethod = 0;
idata.transparentColorFlag = false;
if (i == 0) {
ArrayList<byte[]> appIDs = new ArrayList<byte[]>();
appIDs.add(new String("NETSCAPE").getBytes());
ArrayList<byte[]> authCodes = new ArrayList<byte[]>();
authCodes.add(new String("2.0").getBytes());
ArrayList<byte[]> appData = new ArrayList<byte[]>();
byte[] authData = {1, 0, 0};
appData.add(authData);
idata.applicationIDs = appIDs;
idata.authenticationCodes = authCodes;
idata.applicationData = appData;
}
return idata;
}
protected ImageWriteParam prepareWriteParam() {
return writer.getDefaultWriteParam();
}
protected IIOMetadata prepareStreamMetadata(ImageWriteParam wparam) {
return writer.getDefaultStreamMetadata(wparam);
}
}
class Frame {
protected static int type = BufferedImage.TYPE_INT_RGB;
protected static int dx = 100;
protected static int h = 100;
protected Color[] colors;
protected BufferedImage img;
public Frame(Color[] colors) {
this.colors = colors;
img = null;
}
public BufferedImage getImage() {
if (img == null) {
img = new BufferedImage(dx * colors.length, h, type);
Graphics2D g = img.createGraphics();
for (int i = 0; i < colors.length; i++) {
g.setColor(colors[i]);
g.fillRect(dx * i, 0, dx, h);
}
}
return img;
}
public void checkResult(BufferedImage dst) {
int y = h / 2;
int x = dx / 2;
for (int i = 0; i < colors.length; i++) {
int srcRgb = img.getRGB(i * dx + x, y);
int dstRgb = dst.getRGB(i * dx + x, y);
if (srcRgb != dstRgb) {
throw new RuntimeException("Test failed due to color difference: " +
Integer.toHexString(dstRgb) + " instead of " +
Integer.toHexString(srcRgb));
}
}
}
}
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