root/dwt/internal/image/JPEGRestartInterval.d

/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 * Port to the D programming language:
 *     Frank Benoit <benoit@tionex.de>
 *******************************************************************************/
module dwt.internal.image.JPEGRestartInterval;

import dwt.internal.image.JPEGFixedSizeSegment;
import dwt.internal.image.LEDataInputStream;
import dwt.internal.image.JPEGFileFormat;

final class JPEGRestartInterval : JPEGFixedSizeSegment {

    public this(LEDataInputStream byteStream) {
        super(byteStream);
    }

    public override int signature() {
        return JPEGFileFormat.DRI;
    }

    public int getRestartInterval() {
        return ((reference[4] & 0xFF) << 8 | (reference[5] & 0xFF));
    }

    public override int fixedSize() {
        return 6;
    }
}