/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.sanselan.formats.tiff.write;
import java.io.IOException;
import java.io.OutputStream;
import java.util.List;
import org.apache.sanselan.ImageWriteException;
import org.apache.sanselan.common.BinaryOutputStream;
public class TiffImageWriterLossy extends TiffImageWriterBase
{
public TiffImageWriterLossy()
{
}
public TiffImageWriterLossy(int byteOrder)
{
super(byteOrder);
}
public void write(OutputStream os, TiffOutputSet outputSet)
throws IOException, ImageWriteException
{
// List directories = outputSet.getDirectories();
TiffOutputSummary outputSummary = validateDirectories(outputSet);
List outputItems = outputSet.getOutputItems(outputSummary);
updateOffsetsStep(outputItems);
outputSummary.updateOffsets(byteOrder);
BinaryOutputStream bos = new BinaryOutputStream(os, byteOrder);
writeStep(bos, outputItems);
}
private void updateOffsetsStep(List outputItems) throws IOException,
ImageWriteException
{
int offset = TIFF_HEADER_SIZE;
for (int i = 0; i < outputItems.size(); i++)
{
TiffOutputItem outputItem = (TiffOutputItem) outputItems.get(i);
outputItem.setOffset(offset);
int itemLength = outputItem.getItemLength();
offset += itemLength;
int remainder = imageDataPaddingLength(itemLength);
offset += remainder;
}
}
private void writeStep(BinaryOutputStream bos, List outputItems)
throws IOException, ImageWriteException
{
writeImageFileHeader(bos);
int offset = TIFF_HEADER_SIZE;
for (int i = 0; i < outputItems.size(); i++)
{
TiffOutputItem outputItem = (TiffOutputItem) outputItems.get(i);
outputItem.writeItem(bos);
int length = outputItem.getItemLength();
offset += length;
int remainder = imageDataPaddingLength(length);
offset += remainder;
for (int j = 0; j < remainder; j++)
bos.write(0);
}
}
}