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This is a backport of OpenJFX 8 to run on Java 7.

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/*
 * Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package com.sun.javafx.iio.common;

import java.nio.ByteBuffer;

/**
 * An interface describing an implementation of scaling for sources acquired
 * line-by-line as for a pushbroom scanner.
 */
public interface PushbroomScaler {
    /**
     * Retrieves the destination buffer.
     *
     * @return The destination buffer.
     */
    public ByteBuffer getDestination();

    /**
     * Push one scanline of source pixels into the scaling engine.
     *
     * @param scanline One scanline of source data.
     * @param off The offset into the buffer.
     * @throws IllegalArgumentException if off < 0.
     * @return Whether the destination image is complete.
     */
    public boolean putSourceScanline(byte[] scanline, int off);
}