| /* |
| * 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.pnm; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.apache.commons.imaging.ImageFormat; |
| import org.apache.commons.imaging.ImageInfo; |
| |
| public class PgmFileInfo extends FileInfo |
| { |
| private final int max; // TODO: handle max |
| |
| public PgmFileInfo(int width, int height, boolean RAWBITS, int max) |
| { |
| super(width, height, RAWBITS); |
| |
| this.max = max; |
| } |
| |
| @Override |
| public int getNumComponents() |
| { |
| return 1; |
| } |
| |
| @Override |
| public int getBitDepth() |
| { |
| return 8; |
| } |
| |
| @Override |
| public ImageFormat getImageType() |
| { |
| return ImageFormat.IMAGE_FORMAT_PPM; |
| } |
| |
| @Override |
| public String getImageTypeDescription() |
| { |
| return "PGM: portable pixmap file format"; |
| } |
| |
| @Override |
| public String getMIMEType() |
| { |
| return "image/x-portable-pixmap"; |
| } |
| |
| @Override |
| public int getColorType() |
| { |
| return ImageInfo.COLOR_TYPE_RGB; |
| } |
| |
| @Override |
| public int getRGB(InputStream is) throws IOException |
| { |
| int sample = is.read(); |
| if (sample < 0) |
| throw new IOException("PGM: Unexpected EOF"); |
| |
| int alpha = 0xff; |
| |
| int rgb = ((0xff & alpha) << 24) | ((0xff & sample) << 16) |
| | ((0xff & sample) << 8) | ((0xff & sample) << 0); |
| |
| return rgb; |
| } |
| |
| @Override |
| public int getRGB(WhiteSpaceReader wsr) throws IOException |
| { |
| int sample = Integer.parseInt(wsr.readtoWhiteSpace()); |
| |
| int alpha = 0xff; |
| |
| int rgb = ((0xff & alpha) << 24) | ((0xff & sample) << 16) |
| | ((0xff & sample) << 8) | ((0xff & sample) << 0); |
| |
| return rgb; |
| } |
| |
| } |