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
34opj_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
40opj_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(1,
52 image->numcomps * 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->bpp = cmptparms[compno].bpp;
70 comp->sgnd = cmptparms[compno].sgnd;
71 if (comp->h != 0 &&
72 (OPJ_SIZE_T)comp->w > SIZE_MAX / comp->h / sizeof(OPJ_INT32)) {
73 /* TODO event manager */
74 opj_image_destroy(image);
75 return NULL;
76 }
77 comp->data = (OPJ_INT32*) opj_image_data_alloc(
78 (size_t)comp->w * comp->h * sizeof(OPJ_INT32));
79 if (!comp->data) {
80 /* TODO replace with event manager, breaks API */
81 /* fprintf(stderr,"Unable to allocate memory for image.\n"); */
82 opj_image_destroy(image);
83 return NULL;
84 }
85 memset(comp->data, 0, (size_t)comp->w * comp->h * sizeof(OPJ_INT32));
86 }
87 }
88
89 return image;
90}
91
92void OPJ_CALLCONV opj_image_destroy(opj_image_t *image)
93{
94 if (image) {
95 if (image->comps) {
96 OPJ_UINT32 compno;
97
98 /* image components */
99 for (compno = 0; compno < image->numcomps; compno++) {
100 opj_image_comp_t *image_comp = &(image->comps[compno]);
101 if (image_comp->data) {
102 opj_image_data_free(image_comp->data);
103 }
104 }
105 opj_free(image->comps);
106 }
107
108 if (image->icc_profile_buf) {
109 opj_free(image->icc_profile_buf);
110 }
111
112 opj_free(image);
113 }
114}
115
116/**
117 * Updates the components characteristics of the image from the coding parameters.
118 *
119 * @param p_image_header the image header to update.
120 * @param p_cp the coding parameters from which to update the image.
121 */
122void opj_image_comp_header_update(opj_image_t * p_image_header,
123 const struct opj_cp * p_cp)
124{
125 OPJ_UINT32 i, l_width, l_height;
126 OPJ_UINT32 l_x0, l_y0, l_x1, l_y1;
127 OPJ_UINT32 l_comp_x0, l_comp_y0, l_comp_x1, l_comp_y1;
128 opj_image_comp_t* l_img_comp = NULL;
129
130 l_x0 = opj_uint_max(p_cp->tx0, p_image_header->x0);
131 l_y0 = opj_uint_max(p_cp->ty0, p_image_header->y0);
132 l_x1 = p_cp->tx0 + (p_cp->tw - 1U) *
133 p_cp->tdx; /* validity of p_cp members used here checked in opj_j2k_read_siz. Can't overflow. */
134 l_y1 = p_cp->ty0 + (p_cp->th - 1U) * p_cp->tdy; /* can't overflow */
135 l_x1 = opj_uint_min(opj_uint_adds(l_x1, p_cp->tdx),
136 p_image_header->x1); /* use add saturated to prevent overflow */
137 l_y1 = opj_uint_min(opj_uint_adds(l_y1, p_cp->tdy),
138 p_image_header->y1); /* use add saturated to prevent overflow */
139
140 l_img_comp = p_image_header->comps;
141 for (i = 0; i < p_image_header->numcomps; ++i) {
142 l_comp_x0 = opj_uint_ceildiv(l_x0, l_img_comp->dx);
143 l_comp_y0 = opj_uint_ceildiv(l_y0, l_img_comp->dy);
144 l_comp_x1 = opj_uint_ceildiv(l_x1, l_img_comp->dx);
145 l_comp_y1 = opj_uint_ceildiv(l_y1, l_img_comp->dy);
146 l_width = opj_uint_ceildivpow2(l_comp_x1 - l_comp_x0, l_img_comp->factor);
147 l_height = opj_uint_ceildivpow2(l_comp_y1 - l_comp_y0, l_img_comp->factor);
148 l_img_comp->w = l_width;
149 l_img_comp->h = l_height;
150 l_img_comp->x0 = l_comp_x0;
151 l_img_comp->y0 = l_comp_y0;
152 ++l_img_comp;
153 }
154}
155
156
157/**
158 * Copy only header of image and its component header (no data are copied)
159 * if dest image have data, they will be freed
160 *
161 * @param p_image_src the src image
162 * @param p_image_dest the dest image
163 *
164 */
165void opj_copy_image_header(const opj_image_t* p_image_src,
166 opj_image_t* p_image_dest)
167{
168 OPJ_UINT32 compno;
169
170 /* preconditions */
171 assert(p_image_src != 00);
172 assert(p_image_dest != 00);
173
174 p_image_dest->x0 = p_image_src->x0;
175 p_image_dest->y0 = p_image_src->y0;
176 p_image_dest->x1 = p_image_src->x1;
177 p_image_dest->y1 = p_image_src->y1;
178
179 if (p_image_dest->comps) {
180 for (compno = 0; compno < p_image_dest->numcomps; compno++) {
181 opj_image_comp_t *image_comp = &(p_image_dest->comps[compno]);
182 if (image_comp->data) {
183 opj_image_data_free(image_comp->data);
184 }
185 }
186 opj_free(p_image_dest->comps);
187 p_image_dest->comps = NULL;
188 }
189
190 p_image_dest->numcomps = p_image_src->numcomps;
191
192 p_image_dest->comps = (opj_image_comp_t*) opj_malloc(p_image_dest->numcomps *
193 sizeof(opj_image_comp_t));
194 if (!p_image_dest->comps) {
195 p_image_dest->comps = NULL;
196 p_image_dest->numcomps = 0;
197 return;
198 }
199
200 for (compno = 0; compno < p_image_dest->numcomps; compno++) {
201 memcpy(&(p_image_dest->comps[compno]),
202 &(p_image_src->comps[compno]),
203 sizeof(opj_image_comp_t));
204 p_image_dest->comps[compno].data = NULL;
205 }
206
207 p_image_dest->color_space = p_image_src->color_space;
208 p_image_dest->icc_profile_len = p_image_src->icc_profile_len;
209
210 if (p_image_dest->icc_profile_len) {
211 p_image_dest->icc_profile_buf = (OPJ_BYTE*)opj_malloc(
212 p_image_dest->icc_profile_len);
213 if (!p_image_dest->icc_profile_buf) {
214 p_image_dest->icc_profile_buf = NULL;
215 p_image_dest->icc_profile_len = 0;
216 return;
217 }
218 memcpy(p_image_dest->icc_profile_buf,
219 p_image_src->icc_profile_buf,
220 p_image_src->icc_profile_len);
221 } else {
222 p_image_dest->icc_profile_buf = NULL;
223 }
224
225 return;
226}
227
228opj_image_t* OPJ_CALLCONV opj_image_tile_create(OPJ_UINT32 numcmpts,
229 opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc)
230{
231 OPJ_UINT32 compno;
232 opj_image_t *image = 00;
233
234 image = (opj_image_t*) opj_calloc(1, sizeof(opj_image_t));
235 if (image) {
236
237 image->color_space = clrspc;
238 image->numcomps = numcmpts;
239
240 /* allocate memory for the per-component information */
241 image->comps = (opj_image_comp_t*)opj_calloc(image->numcomps,
242 sizeof(opj_image_comp_t));
243 if (!image->comps) {
244 opj_image_destroy(image);
245 return 00;
246 }
247
248 /* create the individual image components */
249 for (compno = 0; compno < numcmpts; compno++) {
250 opj_image_comp_t *comp = &image->comps[compno];
251 comp->dx = cmptparms[compno].dx;
252 comp->dy = cmptparms[compno].dy;
253 comp->w = cmptparms[compno].w;
254 comp->h = cmptparms[compno].h;
255 comp->x0 = cmptparms[compno].x0;
256 comp->y0 = cmptparms[compno].y0;
257 comp->prec = cmptparms[compno].prec;
258 comp->sgnd = cmptparms[compno].sgnd;
259 comp->data = 0;
260 }
261 }
262
263 return image;
264}
265