/*
* 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.commons.imaging.formats.png.chunks;
import java.io.ByteArrayInputStream;
import java.io.IOException;
public class PngChunkIhdr extends PngChunk {
public final int width;
public final int height;
public final int bitDepth;
public final int colorType;
public final int compressionMethod;
public final int filterMethod;
public final int interlaceMethod;
public PngChunkIhdr(final int Length, final int ChunkType, final int CRC, final byte bytes[])
throws IOException {
super(Length, ChunkType, CRC, bytes);
final ByteArrayInputStream is = new ByteArrayInputStream(bytes);
width = read4Bytes("Width", is, "Not a Valid Png File: IHDR Corrupt");
height = read4Bytes("Height", is, "Not a Valid Png File: IHDR Corrupt");
bitDepth = readByte("BitDepth", is,
"Not a Valid Png File: IHDR Corrupt");
colorType = readByte("ColorType", is,
"Not a Valid Png File: IHDR Corrupt");
compressionMethod = readByte("CompressionMethod", is,
"Not a Valid Png File: IHDR Corrupt");
filterMethod = readByte("FilterMethod", is,
"Not a Valid Png File: IHDR Corrupt");
interlaceMethod = readByte("InterlaceMethod", is,
"Not a Valid Png File: IHDR Corrupt");
}
}