org.apache.commons.imaging.formats.psd.dataparsers.DataParserIndexed Maven / Gradle / Ivy
/*
* 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.psd.dataparsers;
import org.apache.commons.imaging.formats.psd.ImageContents;
public class DataParserIndexed extends DataParser {
private final int[] colorTable;
public DataParserIndexed(final byte[] colorModeData) {
colorTable = new int[256];
for (int i = 0; i < 256; i++) {
final int red = 0xff & colorModeData[0 * 256 + i];
final int green = 0xff & colorModeData[1 * 256 + i];
final int blue = 0xff & colorModeData[2 * 256 + i];
final int alpha = 0xff;
final int rgb = ((0xff & alpha) << 24) | ((0xff & red) << 16)
| ((0xff & green) << 8) | ((0xff & blue) << 0);
colorTable[i] = rgb;
}
}
@Override
protected int getRGB(final int[][][] data, final int x, final int y, final ImageContents imageContents) {
final int sample = 0xff & data[0][y][x];
return colorTable[sample];
}
@Override
public int getBasicChannelsCount() {
return 1;
}
}