| /* |
| * 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.bmp.pixelparsers; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.IOException; |
| |
| import org.apache.commons.imaging.ImageReadException; |
| import org.apache.commons.imaging.common.BinaryFileParser; |
| import org.apache.commons.imaging.common.ImageBuilder; |
| import org.apache.commons.imaging.formats.bmp.BmpHeaderInfo; |
| |
| public abstract class PixelParser |
| { |
| public final BmpHeaderInfo bhi; |
| public final byte colorTable[]; |
| public final byte imageData[]; |
| |
| protected final BinaryFileParser bfp; |
| protected final ByteArrayInputStream is; |
| |
| public PixelParser(BmpHeaderInfo bhi, byte ColorTable[], byte ImageData[]) |
| { |
| this.bhi = bhi; |
| this.colorTable = ColorTable; |
| this.imageData = ImageData; |
| |
| bfp = new BinaryFileParser(BinaryFileParser.BYTE_ORDER_INTEL); |
| is = new ByteArrayInputStream(ImageData); |
| } |
| |
| public abstract void processImage(ImageBuilder imageBuilder) |
| throws ImageReadException, IOException; |
| |
| protected int getColorTableRGB(int index) |
| { |
| index *= 4; |
| int blue = 0xff & colorTable[index + 0]; |
| int green = 0xff & colorTable[index + 1]; |
| int red = 0xff & colorTable[index + 2]; |
| int alpha = 0xff; |
| |
| int rgb = (alpha << 24) | (red << 16) | (green << 8) | (blue << 0); |
| return rgb; |
| } |
| |
| } |