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Add libjpeg-turbo 1.3.1.
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/*
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* Copyright (C)2011, 2013 D. R. Commander. All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name of the libjpeg-turbo Project nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS",
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.libjpegturbo.turbojpeg;
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import java.awt.*;
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/**
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* Lossless transform parameters
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*/
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public class TJTransform extends Rectangle {
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private static final long serialVersionUID = -127367705761430371L;
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/**
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* The number of lossless transform operations
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*/
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public static final int NUMOP = 8;
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/**
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* Do not transform the position of the image pixels.
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*/
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public static final int OP_NONE = 0;
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/**
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* Flip (mirror) image horizontally. This transform is imperfect if there
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* are any partial MCU blocks on the right edge.
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* @see #OPT_PERFECT
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*/
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public static final int OP_HFLIP = 1;
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/**
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* Flip (mirror) image vertically. This transform is imperfect if there are
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* any partial MCU blocks on the bottom edge.
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* @see #OPT_PERFECT
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*/
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public static final int OP_VFLIP = 2;
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/**
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* Transpose image (flip/mirror along upper left to lower right axis). This
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* transform is always perfect.
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* @see #OPT_PERFECT
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*/
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public static final int OP_TRANSPOSE = 3;
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/**
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* Transverse transpose image (flip/mirror along upper right to lower left
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* axis). This transform is imperfect if there are any partial MCU blocks in
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* the image.
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* @see #OPT_PERFECT
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*/
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public static final int OP_TRANSVERSE = 4;
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/**
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* Rotate image clockwise by 90 degrees. This transform is imperfect if
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* there are any partial MCU blocks on the bottom edge.
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* @see #OPT_PERFECT
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*/
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public static final int OP_ROT90 = 5;
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/**
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* Rotate image 180 degrees. This transform is imperfect if there are any
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* partial MCU blocks in the image.
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* @see #OPT_PERFECT
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*/
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public static final int OP_ROT180 = 6;
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/**
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* Rotate image counter-clockwise by 90 degrees. This transform is imperfect
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* if there are any partial MCU blocks on the right edge.
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* @see #OPT_PERFECT
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*/
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public static final int OP_ROT270 = 7;
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/**
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* This option will cause {@link TJTransformer#transform
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* TJTransformer.transform()} to throw an exception if the transform is not
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* perfect. Lossless transforms operate on MCU blocks, whose size depends on
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* the level of chrominance subsampling used. If the image's width or height
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* is not evenly divisible by the MCU block size (see {@link TJ#getMCUWidth}
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* and {@link TJ#getMCUHeight}), then there will be partial MCU blocks on the
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* right and/or bottom edges. It is not possible to move these partial MCU
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* blocks to the top or left of the image, so any transform that would
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* require that is "imperfect." If this option is not specified, then any
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* partial MCU blocks that cannot be transformed will be left in place, which
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* will create odd-looking strips on the right or bottom edge of the image.
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*/
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public static final int OPT_PERFECT = 1;
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/**
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* This option will discard any partial MCU blocks that cannot be
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* transformed.
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*/
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public static final int OPT_TRIM = 2;
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/**
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* This option will enable lossless cropping.
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*/
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public static final int OPT_CROP = 4;
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/**
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* This option will discard the color data in the input image and produce
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* a grayscale output image.
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*/
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public static final int OPT_GRAY = 8;
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/**
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* This option will prevent {@link TJTransformer#transform
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* TJTransformer.transform()} from outputting a JPEG image for this
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* particular transform. This can be used in conjunction with a custom
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* filter to capture the transformed DCT coefficients without transcoding
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* them.
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*/
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public static final int OPT_NOOUTPUT = 16;
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/**
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* Create a new lossless transform instance.
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*/
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public TJTransform() {
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}
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/**
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* Create a new lossless transform instance with the given parameters.
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*
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* @param x the left boundary of the cropping region. This must be evenly
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* divisible by the MCU block width (see {@link TJ#getMCUWidth})
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*
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* @param y the upper boundary of the cropping region. This must be evenly
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* divisible by the MCU block height (see {@link TJ#getMCUHeight})
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*
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* @param w the width of the cropping region. Setting this to 0 is the
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* equivalent of setting it to (width of the source JPEG image -
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* <code>x</code>).
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*
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* @param h the height of the cropping region. Setting this to 0 is the
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* equivalent of setting it to (height of the source JPEG image -
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* <code>y</code>).
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*
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* @param op one of the transform operations (<code>OP_*</code>)
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*
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* @param options the bitwise OR of one or more of the transform options
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* (<code>OPT_*</code>)
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*
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* @param cf an instance of an object that implements the {@link
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* TJCustomFilter} interface, or null if no custom filter is needed
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*/
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public TJTransform(int x, int y, int w, int h, int op, int options,
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TJCustomFilter cf) throws Exception {
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super(x, y, w, h);
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this.op = op;
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this.options = options;
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this.cf = cf;
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}
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/**
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* Create a new lossless transform instance with the given parameters.
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*
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* @param r a <code>Rectangle</code> instance that specifies the cropping
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* region. See {@link
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* #TJTransform(int, int, int, int, int, int, TJCustomFilter)} for more
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* detail.
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*
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* @param op one of the transform operations (<code>OP_*</code>)
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*
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* @param options the bitwise OR of one or more of the transform options
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* (<code>OPT_*</code>)
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*
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* @param cf an instance of an object that implements the {@link
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* TJCustomFilter} interface, or null if no custom filter is needed
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*/
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public TJTransform(Rectangle r, int op, int options,
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TJCustomFilter cf) throws Exception {
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super(r);
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this.op = op;
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this.options = options;
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this.cf = cf;
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}
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/**
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* Transform operation (one of <code>OP_*</code>)
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*/
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public int op = 0;
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/**
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* Transform options (bitwise OR of one or more of <code>OPT_*</code>)
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*/
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public int options = 0;
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/**
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* Custom filter instance
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*/
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public TJCustomFilter cf = null;
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}
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