001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.commons.imaging.formats.tiff.fieldtypes; 018 019import java.nio.ByteOrder; 020 021import org.apache.commons.imaging.ImageWriteException; 022import org.apache.commons.imaging.common.ByteConversions; 023import org.apache.commons.imaging.formats.tiff.TiffField; 024 025public class FieldTypeFloat extends FieldType { 026 public FieldTypeFloat(final int type, final String name) { 027 super(type, name, 4); 028 } 029 030 @Override 031 public Object getValue(final TiffField entry) { 032 final byte[] bytes = entry.getByteArrayValue(); 033 if (entry.getCount() == 1) { 034 return ByteConversions.toFloat(bytes, 035 entry.getByteOrder()); 036 } 037 return ByteConversions.toFloats(bytes, entry.getByteOrder()); 038 } 039 040 @Override 041 public byte[] writeData(final Object o, final ByteOrder byteOrder) throws ImageWriteException { 042 if (o instanceof Float) { 043 return ByteConversions.toBytes(((Float) o).floatValue(), byteOrder); 044 } else if (o instanceof float[]) { 045 final float[] numbers = (float[]) o; 046 return ByteConversions.toBytes(numbers, byteOrder); 047 } else if (o instanceof Float[]) { 048 final Float[] numbers = (Float[]) o; 049 final float[] values = new float[numbers.length]; 050 for (int i = 0; i < values.length; i++) { 051 values[i] = numbers[i].floatValue(); 052 } 053 return ByteConversions.toBytes(values, byteOrder); 054 } else { 055 throw new ImageWriteException("Invalid data", o); 056 } 057 } 058 059}