Index: java/org/libjpegturbo/turbojpeg/TJTransform.java |
diff --git a/java/org/libjpegturbo/turbojpeg/TJTransform.java b/java/org/libjpegturbo/turbojpeg/TJTransform.java |
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+/* |
+ * 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; |
+ |
+import java.awt.*; |
+ |
+/** |
+ * Lossless transform parameters |
+ */ |
+public class TJTransform extends Rectangle { |
+ |
+ private static final long serialVersionUID = -127367705761430371L; |
+ |
+ /** |
+ * 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; |
+ |
+ |
+ /** |
+ * 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; |
+ } |
+ |
+ /** |
+ * 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; |
+} |