1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.imaging.formats.psd.dataparsers;
18
19 import java.util.Arrays;
20
21 import org.apache.commons.imaging.formats.psd.PsdImageContents;
22
23 public class DataParserIndexed extends DataParser {
24 private final int[] colorTable;
25
26 public DataParserIndexed(final byte[] colorModeData) {
27 colorTable = new int[256];
28 Arrays.setAll(colorTable, i -> {
29 final int red = 0xff & colorModeData[0 * 256 + i];
30 final int green = 0xff & colorModeData[1 * 256 + i];
31 final int blue = 0xff & colorModeData[2 * 256 + i];
32 final int alpha = 0xff;
33
34 // return RGB
35 return (0xff & alpha) << 24 | (0xff & red) << 16 | (0xff & green) << 8 | (0xff & blue) << 0;
36 });
37 }
38
39 @Override
40 public int getBasicChannelsCount() {
41 return 1;
42 }
43
44 @Override
45 protected int getRgb(final int[][][] data, final int x, final int y, final PsdImageContents imageContents) {
46 final int sample = 0xff & data[0][y][x];
47 return colorTable[sample];
48 }
49
50 }