| /* |
| * 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. |
| */ |
| /** |
| * @author Oleg V. Khaschansky |
| * @version $Revision$ |
| */ |
| package org.apache.harmony.awt.gl.color; |
| |
| import java.awt.color.ICC_Profile; |
| |
| /** |
| * Includes utility methods for reading ICC profile data. |
| * Created to provide public access to ICC_Profile methods |
| * for classes outside of java.awt.color |
| */ |
| public class ICC_ProfileHelper { |
| /** |
| * Utility method. |
| * Gets integer value from the byte array |
| * @param byteArray - byte array |
| * @param idx - byte offset |
| * @return integer value |
| */ |
| public static int getIntFromByteArray(byte[] byteArray, int idx) { |
| return (byteArray[idx] & 0xFF)| |
| ((byteArray[idx+1] & 0xFF) << 8) | |
| ((byteArray[idx+2] & 0xFF) << 16)| |
| ((byteArray[idx+3] & 0xFF) << 24); |
| } |
| |
| /** |
| * Utility method. |
| * Gets big endian integer value from the byte array |
| * @param byteArray - byte array |
| * @param idx - byte offset |
| * @return integer value |
| */ |
| public static int getBigEndianFromByteArray(byte[] byteArray, int idx) { |
| return ((byteArray[idx] & 0xFF) << 24) | |
| ((byteArray[idx+1] & 0xFF) << 16) | |
| ((byteArray[idx+2] & 0xFF) << 8) | |
| ( byteArray[idx+3] & 0xFF); |
| } |
| |
| /** |
| * Utility method. |
| * Gets short value from the byte array |
| * @param byteArray - byte array |
| * @param idx - byte offset |
| * @return short value |
| */ |
| public static short getShortFromByteArray(byte[] byteArray, int idx) { |
| return (short) ((byteArray[idx] & 0xFF) | |
| ((byteArray[idx+1] & 0xFF) << 8)); |
| } |
| |
| /** |
| * Used in ICC_Transform class to check the rendering intent of the profile |
| * @param profile - ICC profile |
| * @return rendering intent |
| */ |
| public static int getRenderingIntent(ICC_Profile profile) { |
| return getIntFromByteArray( |
| profile.getData(ICC_Profile.icSigHead), // pf header |
| ICC_Profile.icHdrRenderingIntent |
| ); |
| } |
| } |