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comparison mupdf-source/thirdparty/openjpeg/src/lib/openjp2/mct.h @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 /*
2 * The copyright in this software is being made available under the 2-clauses
3 * BSD License, included below. This software may be subject to other third
4 * party and contributor rights, including patent rights, and no such rights
5 * are granted under this license.
6 *
7 * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
8 * Copyright (c) 2002-2014, Professor Benoit Macq
9 * Copyright (c) 2001-2003, David Janssens
10 * Copyright (c) 2002-2003, Yannick Verschueren
11 * Copyright (c) 2003-2007, Francois-Olivier Devaux
12 * Copyright (c) 2003-2014, Antonin Descampe
13 * Copyright (c) 2005, Herve Drolon, FreeImage Team
14 * Copyright (c) 2008, 2011-2012, Centre National d'Etudes Spatiales (CNES), FR
15 * Copyright (c) 2012, CS Systemes d'Information, France
16 * All rights reserved.
17 *
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions
20 * are met:
21 * 1. Redistributions of source code must retain the above copyright
22 * notice, this list of conditions and the following disclaimer.
23 * 2. Redistributions in binary form must reproduce the above copyright
24 * notice, this list of conditions and the following disclaimer in the
25 * documentation and/or other materials provided with the distribution.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
28 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
31 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40 #ifndef OPJ_MCT_H
41 #define OPJ_MCT_H
42 /**
43 @file mct.h
44 @brief Implementation of a multi-component transforms (MCT)
45
46 The functions in MCT.C have for goal to realize reversible and irreversible multicomponent
47 transform. The functions in MCT.C are used by some function in TCD.C.
48 */
49
50 /** @defgroup MCT MCT - Implementation of a multi-component transform */
51 /*@{*/
52
53 /** @name Exported functions */
54 /*@{*/
55 /* ----------------------------------------------------------------------- */
56 /**
57 Apply a reversible multi-component transform to an image
58 @param c0 Samples for red component
59 @param c1 Samples for green component
60 @param c2 Samples blue component
61 @param n Number of samples for each component
62 */
63 void opj_mct_encode(OPJ_INT32* OPJ_RESTRICT c0, OPJ_INT32* OPJ_RESTRICT c1,
64 OPJ_INT32* OPJ_RESTRICT c2, OPJ_SIZE_T n);
65 /**
66 Apply a reversible multi-component inverse transform to an image
67 @param c0 Samples for luminance component
68 @param c1 Samples for red chrominance component
69 @param c2 Samples for blue chrominance component
70 @param n Number of samples for each component
71 */
72 void opj_mct_decode(OPJ_INT32* OPJ_RESTRICT c0, OPJ_INT32* OPJ_RESTRICT c1,
73 OPJ_INT32* OPJ_RESTRICT c2, OPJ_SIZE_T n);
74 /**
75 Get norm of the basis function used for the reversible multi-component transform
76 @param compno Number of the component (0->Y, 1->U, 2->V)
77 @return
78 */
79 OPJ_FLOAT64 opj_mct_getnorm(OPJ_UINT32 compno);
80
81 /**
82 Apply an irreversible multi-component transform to an image
83 @param c0 Samples for red component
84 @param c1 Samples for green component
85 @param c2 Samples blue component
86 @param n Number of samples for each component
87 */
88 void opj_mct_encode_real(OPJ_FLOAT32* OPJ_RESTRICT c0,
89 OPJ_FLOAT32* OPJ_RESTRICT c1,
90 OPJ_FLOAT32* OPJ_RESTRICT c2, OPJ_SIZE_T n);
91 /**
92 Apply an irreversible multi-component inverse transform to an image
93 @param c0 Samples for luminance component
94 @param c1 Samples for red chrominance component
95 @param c2 Samples for blue chrominance component
96 @param n Number of samples for each component
97 */
98 void opj_mct_decode_real(OPJ_FLOAT32* OPJ_RESTRICT c0,
99 OPJ_FLOAT32* OPJ_RESTRICT c1, OPJ_FLOAT32* OPJ_RESTRICT c2, OPJ_SIZE_T n);
100 /**
101 Get norm of the basis function used for the irreversible multi-component transform
102 @param compno Number of the component (0->Y, 1->U, 2->V)
103 @return
104 */
105 OPJ_FLOAT64 opj_mct_getnorm_real(OPJ_UINT32 compno);
106
107 /**
108 FIXME DOC
109 @param p_coding_data MCT data
110 @param n size of components
111 @param p_data components
112 @param p_nb_comp nb of components (i.e. size of p_data)
113 @param is_signed tells if the data is signed
114 @return OPJ_FALSE if function encounter a problem, OPJ_TRUE otherwise
115 */
116 OPJ_BOOL opj_mct_encode_custom(
117 OPJ_BYTE * p_coding_data,
118 OPJ_SIZE_T n,
119 OPJ_BYTE ** p_data,
120 OPJ_UINT32 p_nb_comp,
121 OPJ_UINT32 is_signed);
122 /**
123 FIXME DOC
124 @param pDecodingData MCT data
125 @param n size of components
126 @param pData components
127 @param pNbComp nb of components (i.e. size of p_data)
128 @param isSigned tells if the data is signed
129 @return OPJ_FALSE if function encounter a problem, OPJ_TRUE otherwise
130 */
131 OPJ_BOOL opj_mct_decode_custom(
132 OPJ_BYTE * pDecodingData,
133 OPJ_SIZE_T n,
134 OPJ_BYTE ** pData,
135 OPJ_UINT32 pNbComp,
136 OPJ_UINT32 isSigned);
137 /**
138 FIXME DOC
139 @param pNorms MCT data
140 @param p_nb_comps size of components
141 @param pMatrix components
142 @return
143 */
144 void opj_calculate_norms(OPJ_FLOAT64 * pNorms,
145 OPJ_UINT32 p_nb_comps,
146 OPJ_FLOAT32 * pMatrix);
147 /**
148 FIXME DOC
149 */
150 const OPJ_FLOAT64 * opj_mct_get_mct_norms(void);
151 /**
152 FIXME DOC
153 */
154 const OPJ_FLOAT64 * opj_mct_get_mct_norms_real(void);
155 /* ----------------------------------------------------------------------- */
156 /*@}*/
157
158 /*@}*/
159
160 #endif /* OPJ_MCT_H */