content: /*
   * Copyright (C)2011, 2013 D. R. Commander.  All Rights Reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * - Redistributions of source code must retain the above copyright notice,
   *   this list of conditions and the following disclaimer.
   * - Redistributions in binary form must reproduce the above copyright notice,
   *   this list of conditions and the following disclaimer in the documentation
   *   and/or other materials provided with the distribution.
   * - Neither the name of the libjpeg-turbo Project nor the names of its
   *   contributors may be used to endorse or promote products derived from this
   *   software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS",
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   */
  package org.libjpegturbo.turbojpeg;
  
  /**
   * Lossless transform parameters
   */
  public class TJTransform extends Rectangle {
  
  	/**
  	 * The number of lossless transform operations
  	 */
  	public static final int NUMOP = 8;
  	/**
  	 * Do not transform the position of the image pixels.
  	 */
  	public static final int OP_NONE = 0;
  	/**
  	 * Flip (mirror) image horizontally.  This transform is imperfect if there
  	 * are any partial MCU blocks on the right edge.
  	 *
  	 * @see #OPT_PERFECT
  	 */
  	public static final int OP_HFLIP = 1;
  	/**
  	 * Flip (mirror) image vertically.  This transform is imperfect if there are
  	 * any partial MCU blocks on the bottom edge.
  	 *
  	 * @see #OPT_PERFECT
  	 */
  	public static final int OP_VFLIP = 2;
  	/**
  	 * Transpose image (flip/mirror along upper left to lower right axis).  This
  	 * transform is always perfect.
  	 *
  	 * @see #OPT_PERFECT
  	 */
  	public static final int OP_TRANSPOSE = 3;
  	/**
  	 * Transverse transpose image (flip/mirror along upper right to lower left
  	 * axis).  This transform is imperfect if there are any partial MCU blocks in
  	 * the image.
  	 *
  	 * @see #OPT_PERFECT
  	 */
  	public static final int OP_TRANSVERSE = 4;
  	/**
  	 * Rotate image clockwise by 90 degrees.  This transform is imperfect if
  	 * there are any partial MCU blocks on the bottom edge.
  	 *
  	 * @see #OPT_PERFECT
  	 */
  	public static final int OP_ROT90 = 5;
  	/**
  	 * Rotate image 180 degrees.  This transform is imperfect if there are any
  	 * partial MCU blocks in the image.
  	 *
  	 * @see #OPT_PERFECT
  	 */
  	public static final int OP_ROT180 = 6;
  	/**
  	 * Rotate image counter-clockwise by 90 degrees.  This transform is imperfect
  	 * if there are any partial MCU blocks on the right edge.
  	 *
  	 * @see #OPT_PERFECT
  	 */
  	public static final int OP_ROT270 = 7;
  	/**
  	 * This option will cause {@link TJTransformer#transform
  	 * TJTransformer.transform()} to throw an exception if the transform is not
  	 * perfect.  Lossless transforms operate on MCU blocks, whose size depends on
  	 * the level of chrominance subsampling used.  If the image's width or height
  	 * is not evenly divisible by the MCU block size (see {@link TJ#getMCUWidth}
  	 * and {@link TJ#getMCUHeight}), then there will be partial MCU blocks on the
  	 * right and/or bottom edges.   It is not possible to move these partial MCU
  	 * blocks to the top or left of the image, so any transform that would
  	 * require that is "imperfect."  If this option is not specified, then any
  	 * partial MCU blocks that cannot be transformed will be left in place, which
  	 * will create odd-looking strips on the right or bottom edge of the image.
  	 */
  	public static final int OPT_PERFECT = 1;
  	/**
  	 * This option will discard any partial MCU blocks that cannot be
  	 * transformed.
  	 */
  	public static final int OPT_TRIM = 2;
  	/**
  	 * This option will enable lossless cropping.
  	 */
  	public static final int OPT_CROP = 4;
  	/**
  	 * This option will discard the color data in the input image and produce
  	 * a grayscale output image.
  	 */
  	public static final int OPT_GRAY = 8;
  	/**
  	 * This option will prevent {@link TJTransformer#transform
  	 * TJTransformer.transform()} from outputting a JPEG image for this
  	 * particular transform.  This can be used in conjunction with a custom
  	 * filter to capture the transformed DCT coefficients without transcoding
  	 * them.
  	 */
  	public static final int OPT_NOOUTPUT = 16;
  	private static final long serialVersionUID = -127367705761430371L;
  	/**
  	 * Transform operation (one of <code>OP_*</code>)
  	 */
  	public int op = 0;
  	/**
  	 * Transform options (bitwise OR of one or more of <code>OPT_*</code>)
  	 */
  	public int options = 0;
  	/**
  	 * Custom filter instance
  	 */
  	public TJCustomFilter cf = null;
  
  	/**
  	 * Create a new lossless transform instance.
  	 */
  	public TJTransform() {
  	}
  
  	/**
  	 * Create a new lossless transform instance with the given parameters.
  	 *
  	 * @param x       the left boundary of the cropping region.  This must be evenly
  	 *                divisible by the MCU block width (see {@link TJ#getMCUWidth})
  	 * @param y       the upper boundary of the cropping region.  This must be evenly
  	 *                divisible by the MCU block height (see {@link TJ#getMCUHeight})
  	 * @param w       the width of the cropping region.  Setting this to 0 is the
  	 *                equivalent of setting it to (width of the source JPEG image -
  	 *                <code>x</code>).
  	 * @param h       the height of the cropping region.  Setting this to 0 is the
  	 *                equivalent of setting it to (height of the source JPEG image -
  	 *                <code>y</code>).
  	 * @param op      one of the transform operations (<code>OP_*</code>)
  	 * @param options the bitwise OR of one or more of the transform options
  	 *                (<code>OPT_*</code>)
  	 * @param cf      an instance of an object that implements the {@link
  	 *                TJCustomFilter} interface, or null if no custom filter is needed
  	 */
  	public TJTransform(int x, int y, int w, int h, int op, int options, TJCustomFilter cf) {
  		super(x, y, w, h);
  		this.op = op;
  		this.options = options;
  		this.cf = cf;
  	}
  
  	/**
  	 * Create a new lossless transform instance with the given parameters.
  	 *
  	 * @param r       a <code>Rectangle</code> instance that specifies the cropping
  	 *                region.  See {@link
  	 *                #TJTransform(int, int, int, int, int, int, TJCustomFilter)} for more
  	 *                detail.
  	 * @param op      one of the transform operations (<code>OP_*</code>)
  	 * @param options the bitwise OR of one or more of the transform options
  	 *                (<code>OPT_*</code>)
  	 * @param cf      an instance of an object that implements the {@link
  	 *                TJCustomFilter} interface, or null if no custom filter is needed
  	 */
  	public TJTransform(Rectangle r, int op, int options, TJCustomFilter cf) {
  		super(r);
  		this.op = op;
  		this.options = options;
  		this.cf = cf;
  	}
  }
  