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comparison mupdf-source/thirdparty/openjpeg/src/lib/openjp2/image.c @ 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) 2005, Herve Drolon, FreeImage Team
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include "opj_includes.h"
33
34 opj_image_t* opj_image_create0(void)
35 {
36 opj_image_t *image = (opj_image_t*)opj_calloc(1, sizeof(opj_image_t));
37 return image;
38 }
39
40 opj_image_t* OPJ_CALLCONV opj_image_create(OPJ_UINT32 numcmpts,
41 opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc)
42 {
43 OPJ_UINT32 compno;
44 opj_image_t *image = NULL;
45
46 image = (opj_image_t*) opj_calloc(1, sizeof(opj_image_t));
47 if (image) {
48 image->color_space = clrspc;
49 image->numcomps = numcmpts;
50 /* allocate memory for the per-component information */
51 image->comps = (opj_image_comp_t*)opj_calloc(image->numcomps,
52 sizeof(opj_image_comp_t));
53 if (!image->comps) {
54 /* TODO replace with event manager, breaks API */
55 /* fprintf(stderr,"Unable to allocate memory for image.\n"); */
56 opj_image_destroy(image);
57 return NULL;
58 }
59 /* create the individual image components */
60 for (compno = 0; compno < numcmpts; compno++) {
61 opj_image_comp_t *comp = &image->comps[compno];
62 comp->dx = cmptparms[compno].dx;
63 comp->dy = cmptparms[compno].dy;
64 comp->w = cmptparms[compno].w;
65 comp->h = cmptparms[compno].h;
66 comp->x0 = cmptparms[compno].x0;
67 comp->y0 = cmptparms[compno].y0;
68 comp->prec = cmptparms[compno].prec;
69 comp->sgnd = cmptparms[compno].sgnd;
70 if (comp->h != 0 &&
71 (OPJ_SIZE_T)comp->w > SIZE_MAX / comp->h / sizeof(OPJ_INT32)) {
72 /* TODO event manager */
73 opj_image_destroy(image);
74 return NULL;
75 }
76 comp->data = (OPJ_INT32*) opj_image_data_alloc(
77 (size_t)comp->w * comp->h * sizeof(OPJ_INT32));
78 if (!comp->data) {
79 /* TODO replace with event manager, breaks API */
80 /* fprintf(stderr,"Unable to allocate memory for image.\n"); */
81 opj_image_destroy(image);
82 return NULL;
83 }
84 memset(comp->data, 0, (size_t)comp->w * comp->h * sizeof(OPJ_INT32));
85 }
86 }
87
88 return image;
89 }
90
91 void OPJ_CALLCONV opj_image_destroy(opj_image_t *image)
92 {
93 if (image) {
94 if (image->comps) {
95 OPJ_UINT32 compno;
96
97 /* image components */
98 for (compno = 0; compno < image->numcomps; compno++) {
99 opj_image_comp_t *image_comp = &(image->comps[compno]);
100 if (image_comp->data) {
101 opj_image_data_free(image_comp->data);
102 }
103 }
104 opj_free(image->comps);
105 }
106
107 if (image->icc_profile_buf) {
108 opj_free(image->icc_profile_buf);
109 }
110
111 opj_free(image);
112 }
113 }
114
115 /**
116 * Updates the components characteristics of the image from the coding parameters.
117 *
118 * @param p_image_header the image header to update.
119 * @param p_cp the coding parameters from which to update the image.
120 */
121 void opj_image_comp_header_update(opj_image_t * p_image_header,
122 const struct opj_cp * p_cp)
123 {
124 OPJ_UINT32 i, l_width, l_height;
125 OPJ_UINT32 l_x0, l_y0, l_x1, l_y1;
126 OPJ_UINT32 l_comp_x0, l_comp_y0, l_comp_x1, l_comp_y1;
127 opj_image_comp_t* l_img_comp = NULL;
128
129 l_x0 = opj_uint_max(p_cp->tx0, p_image_header->x0);
130 l_y0 = opj_uint_max(p_cp->ty0, p_image_header->y0);
131 l_x1 = p_cp->tx0 + (p_cp->tw - 1U) *
132 p_cp->tdx; /* validity of p_cp members used here checked in opj_j2k_read_siz. Can't overflow. */
133 l_y1 = p_cp->ty0 + (p_cp->th - 1U) * p_cp->tdy; /* can't overflow */
134 l_x1 = opj_uint_min(opj_uint_adds(l_x1, p_cp->tdx),
135 p_image_header->x1); /* use add saturated to prevent overflow */
136 l_y1 = opj_uint_min(opj_uint_adds(l_y1, p_cp->tdy),
137 p_image_header->y1); /* use add saturated to prevent overflow */
138
139 l_img_comp = p_image_header->comps;
140 for (i = 0; i < p_image_header->numcomps; ++i) {
141 l_comp_x0 = opj_uint_ceildiv(l_x0, l_img_comp->dx);
142 l_comp_y0 = opj_uint_ceildiv(l_y0, l_img_comp->dy);
143 l_comp_x1 = opj_uint_ceildiv(l_x1, l_img_comp->dx);
144 l_comp_y1 = opj_uint_ceildiv(l_y1, l_img_comp->dy);
145 l_width = opj_uint_ceildivpow2(l_comp_x1 - l_comp_x0, l_img_comp->factor);
146 l_height = opj_uint_ceildivpow2(l_comp_y1 - l_comp_y0, l_img_comp->factor);
147 l_img_comp->w = l_width;
148 l_img_comp->h = l_height;
149 l_img_comp->x0 = l_comp_x0;
150 l_img_comp->y0 = l_comp_y0;
151 ++l_img_comp;
152 }
153 }
154
155
156 /**
157 * Copy only header of image and its component header (no data are copied)
158 * if dest image have data, they will be freed
159 *
160 * @param p_image_src the src image
161 * @param p_image_dest the dest image
162 *
163 */
164 void opj_copy_image_header(const opj_image_t* p_image_src,
165 opj_image_t* p_image_dest)
166 {
167 OPJ_UINT32 compno;
168
169 /* preconditions */
170 assert(p_image_src != 00);
171 assert(p_image_dest != 00);
172
173 p_image_dest->x0 = p_image_src->x0;
174 p_image_dest->y0 = p_image_src->y0;
175 p_image_dest->x1 = p_image_src->x1;
176 p_image_dest->y1 = p_image_src->y1;
177
178 if (p_image_dest->comps) {
179 for (compno = 0; compno < p_image_dest->numcomps; compno++) {
180 opj_image_comp_t *image_comp = &(p_image_dest->comps[compno]);
181 if (image_comp->data) {
182 opj_image_data_free(image_comp->data);
183 }
184 }
185 opj_free(p_image_dest->comps);
186 p_image_dest->comps = NULL;
187 }
188
189 p_image_dest->numcomps = p_image_src->numcomps;
190
191 p_image_dest->comps = (opj_image_comp_t*) opj_malloc(p_image_dest->numcomps *
192 sizeof(opj_image_comp_t));
193 if (!p_image_dest->comps) {
194 p_image_dest->comps = NULL;
195 p_image_dest->numcomps = 0;
196 return;
197 }
198
199 for (compno = 0; compno < p_image_dest->numcomps; compno++) {
200 memcpy(&(p_image_dest->comps[compno]),
201 &(p_image_src->comps[compno]),
202 sizeof(opj_image_comp_t));
203 p_image_dest->comps[compno].data = NULL;
204 }
205
206 p_image_dest->color_space = p_image_src->color_space;
207 p_image_dest->icc_profile_len = p_image_src->icc_profile_len;
208
209 if (p_image_dest->icc_profile_len) {
210 p_image_dest->icc_profile_buf = (OPJ_BYTE*)opj_malloc(
211 p_image_dest->icc_profile_len);
212 if (!p_image_dest->icc_profile_buf) {
213 p_image_dest->icc_profile_buf = NULL;
214 p_image_dest->icc_profile_len = 0;
215 return;
216 }
217 memcpy(p_image_dest->icc_profile_buf,
218 p_image_src->icc_profile_buf,
219 p_image_src->icc_profile_len);
220 } else {
221 p_image_dest->icc_profile_buf = NULL;
222 }
223
224 return;
225 }
226
227 opj_image_t* OPJ_CALLCONV opj_image_tile_create(OPJ_UINT32 numcmpts,
228 opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc)
229 {
230 OPJ_UINT32 compno;
231 opj_image_t *image = 00;
232
233 image = (opj_image_t*) opj_calloc(1, sizeof(opj_image_t));
234 if (image) {
235
236 image->color_space = clrspc;
237 image->numcomps = numcmpts;
238
239 /* allocate memory for the per-component information */
240 image->comps = (opj_image_comp_t*)opj_calloc(image->numcomps,
241 sizeof(opj_image_comp_t));
242 if (!image->comps) {
243 opj_image_destroy(image);
244 return 00;
245 }
246
247 /* create the individual image components */
248 for (compno = 0; compno < numcmpts; compno++) {
249 opj_image_comp_t *comp = &image->comps[compno];
250 comp->dx = cmptparms[compno].dx;
251 comp->dy = cmptparms[compno].dy;
252 comp->w = cmptparms[compno].w;
253 comp->h = cmptparms[compno].h;
254 comp->x0 = cmptparms[compno].x0;
255 comp->y0 = cmptparms[compno].y0;
256 comp->prec = cmptparms[compno].prec;
257 comp->sgnd = cmptparms[compno].sgnd;
258 comp->data = 0;
259 }
260 }
261
262 return image;
263 }