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.photometricinterpreters;
018
019import java.io.IOException;
020
021import org.apache.commons.imaging.ImagingException;
022import org.apache.commons.imaging.common.ImageBuilder;
023
024public class PhotometricInterpreterBiLevel extends PhotometricInterpreter {
025    private final boolean invert;
026
027    // private final int bitsPerPixel;
028
029    public PhotometricInterpreterBiLevel(final int samplesPerPixel, final int[] bitsPerSample, final int predictor, final int width, final int height,
030            final boolean invert) {
031        super(samplesPerPixel, bitsPerSample, predictor, width, height);
032
033        this.invert = invert;
034        // this.bitsPerPixel = fBitsPerPixel;
035    }
036
037    @Override
038    public void interpretPixel(final ImageBuilder imageBuilder, final int[] samples, final int x, final int y) throws ImagingException, IOException {
039        int sample = samples[0];
040
041        if (invert) {
042            sample = 255 - sample;
043        }
044
045        final int red = sample;
046        final int green = sample;
047        final int blue = sample;
048
049        final int alpha = 0xff;
050        final int rgb = alpha << 24 | red << 16 | green << 8 | blue << 0;
051
052        imageBuilder.setRgb(x, y, rgb);
053    }
054}