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Side by Side Diff: java/org/libjpegturbo/turbojpeg/TJCustomFilter.java

Issue 1934113002: Update libjpeg_turbo to 1.4.90 from https://github.com/libjpeg-turbo/ (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/libjpeg_turbo.git@master
Patch Set: Created 4 years, 7 months ago
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1 /*
2 * Copyright (C)2011, 2013 D. R. Commander. All Rights Reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * - Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.
9 * - Redistributions in binary form must reproduce the above copyright notice,
10 * this list of conditions and the following disclaimer in the documentation
11 * and/or other materials provided with the distribution.
12 * - Neither the name of the libjpeg-turbo Project nor the names of its
13 * contributors may be used to endorse or promote products derived from this
14 * software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS",
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 package org.libjpegturbo.turbojpeg;
30
31 import java.awt.*;
32 import java.nio.*;
33
34 /**
35 * Custom filter callback interface
36 */
37 public interface TJCustomFilter {
38
39 /**
40 * A callback function that can be used to modify the DCT coefficients after
41 * they are losslessly transformed but before they are transcoded to a new
42 * JPEG image. This allows for custom filters or other transformations to be
43 * applied in the frequency domain.
44 *
45 * @param coeffBuffer a buffer containing transformed DCT coefficients.
46 * (NOTE: this buffer is not guaranteed to be valid once the callback
47 * returns, so applications wishing to hand off the DCT coefficients to
48 * another function or library should make a copy of them within the body of
49 * the callback.)
50 *
51 * @param bufferRegion rectangle containing the width and height of
52 * <code>coeffBuffer</code> as well as its offset relative to the component
53 * plane. TurboJPEG implementations may choose to split each component plane
54 * into multiple DCT coefficient buffers and call the callback function once
55 * for each buffer.
56 *
57 * @param planeRegion rectangle containing the width and height of the
58 * component plane to which <code>coeffBuffer</code> belongs
59 *
60 * @param componentID ID number of the component plane to which
61 * <code>coeffBuffer</code> belongs (Y, Cb, and Cr have, respectively, ID's
62 * of 0, 1, and 2 in typical JPEG images.)
63 *
64 * @param transformID ID number of the transformed image to which
65 * <code>coeffBuffer</code> belongs. This is the same as the index of the
66 * transform in the <code>transforms</code> array that was passed to {@link
67 * TJTransformer#transform TJTransformer.transform()}.
68 *
69 * @param transform a {@link TJTransform} instance that specifies the
70 * parameters and/or cropping region for this transform
71 */
72 void customFilter(ShortBuffer coeffBuffer, Rectangle bufferRegion,
73 Rectangle planeRegion, int componentID, int transformID,
74 TJTransform transform)
75 throws TJException;
76 }
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