/*******************************************************************************
* Copyright (c) 2016 Weasis Team and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Nicolas Roduit - initial API and implementation
*******************************************************************************/
package org.weasis.jpeg;
import java.awt.image.IndexColorModel;
import java.awt.image.RenderedImage;
import java.io.IOException;
import java.nio.ByteOrder;
import javax.imageio.IIOException;
import javax.imageio.IIOImage;
import javax.imageio.ImageWriteParam;
import javax.imageio.metadata.IIOMetadata;
import javax.imageio.spi.ImageWriterSpi;
import javax.imageio.stream.ImageOutputStream;
import org.weasis.image.jni.ImageParameters;
import org.weasis.image.jni.NativeImageWriter;
import org.weasis.jpeg.internal.CharlsCodec;
import com.sun.media.imageioimpl.common.ImageUtil;
import com.sun.media.imageioimpl.plugins.clib.OutputStreamAdapter;
class NativeJLSImageWriter extends NativeImageWriter {
NativeJLSImageWriter(ImageWriterSpi originatingProvider) throws IOException {
super(originatingProvider);
}
@Override
public ImageWriteParam getDefaultWriteParam() {
return new CLibJPEGImageWriteParam(getLocale());
}
@Override
public void write(IIOMetadata streamMetadata, IIOImage image, ImageWriteParam param) throws IOException {
if (output == null) {
throw new IllegalStateException("input cannot be null");
}
OutputStreamAdapter stream;
if (output instanceof ImageOutputStream) {
stream = new OutputStreamAdapter((ImageOutputStream) output);
} else {
throw new IllegalArgumentException("input is not an ImageInputStream!");
}
RenderedImage renderedImage = image.getRenderedImage();
// Throws exception if the renderedImage cannot be encoded.
ImageUtil.canEncodeImage(this, renderedImage.getColorModel(), renderedImage.getSampleModel());
if (renderedImage.getColorModel() instanceof IndexColorModel) {
renderedImage = convertTo3BandRGB(renderedImage);
}
try {
NativeJPEGImage nImage = new NativeJPEGImage();
int[] supportedFormats = new int[] { ImageParameters.CM_GRAY, ImageParameters.CM_S_RGB };
formatInputDataBuffer(nImage, renderedImage, param, false, supportedFormats);
JpegParameters params = nImage.getJpegParameters();
params.setBigEndian((stream.getStream()).getByteOrder() == ByteOrder.BIG_ENDIAN);
CharlsCodec encoder = getCodec();
String error = encoder.compress(nImage, stream.getStream(), param);
if (error != null) {
throw new IIOException("Native JPEG-LS encoding error: " + error);
}
encoder.dispose();
} catch (Throwable t) {
throw new IIOException("Native JPEG-LS encoding error", t);
}
}
@Override
protected CharlsCodec getCodec() {
return new CharlsCodec();
}
}