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
opj_image_create0(void)34 opj_image_t* opj_image_create0(void) {
35 opj_image_t *image = (opj_image_t*)opj_calloc(1, sizeof(opj_image_t));
36 return image;
37 }
38
opj_image_create(OPJ_UINT32 numcmpts,opj_image_cmptparm_t * cmptparms,OPJ_COLOR_SPACE clrspc)39 opj_image_t* OPJ_CALLCONV opj_image_create(OPJ_UINT32 numcmpts, opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc) {
40 OPJ_UINT32 compno;
41 opj_image_t *image = NULL;
42
43 image = (opj_image_t*) opj_calloc(1, sizeof(opj_image_t));
44 if(image) {
45 image->color_space = clrspc;
46 image->numcomps = numcmpts;
47 /* allocate memory for the per-component information */
48 image->comps = (opj_image_comp_t*)opj_calloc(1,image->numcomps * sizeof(opj_image_comp_t));
49 if(!image->comps) {
50 fprintf(stderr,"Unable to allocate memory for image.\n");
51 opj_image_destroy(image);
52 return NULL;
53 }
54 /* create the individual image components */
55 for(compno = 0; compno < numcmpts; compno++) {
56 opj_image_comp_t *comp = &image->comps[compno];
57 comp->dx = cmptparms[compno].dx;
58 comp->dy = cmptparms[compno].dy;
59 comp->w = cmptparms[compno].w;
60 comp->h = cmptparms[compno].h;
61 comp->x0 = cmptparms[compno].x0;
62 comp->y0 = cmptparms[compno].y0;
63 comp->prec = cmptparms[compno].prec;
64 comp->bpp = cmptparms[compno].bpp;
65 comp->sgnd = cmptparms[compno].sgnd;
66 comp->data = (OPJ_INT32*) opj_calloc(comp->w * comp->h, sizeof(OPJ_INT32));
67 if(!comp->data) {
68 fprintf(stderr,"Unable to allocate memory for image.\n");
69 opj_image_destroy(image);
70 return NULL;
71 }
72 }
73 }
74
75 return image;
76 }
77
opj_image_destroy(opj_image_t * image)78 void OPJ_CALLCONV opj_image_destroy(opj_image_t *image) {
79 if(image) {
80 if(image->comps) {
81 OPJ_UINT32 compno;
82
83 /* image components */
84 for(compno = 0; compno < image->numcomps; compno++) {
85 opj_image_comp_t *image_comp = &(image->comps[compno]);
86 if(image_comp->data) {
87 opj_free(image_comp->data);
88 }
89 }
90 opj_free(image->comps);
91 }
92
93 if(image->icc_profile_buf) {
94 opj_free(image->icc_profile_buf);
95 }
96
97 opj_free(image);
98 }
99 }
100
101 /**
102 * Updates the components characteristics of the image from the coding parameters.
103 *
104 * @param p_image_header the image header to update.
105 * @param p_cp the coding parameters from which to update the image.
106 */
opj_image_comp_header_update(opj_image_t * p_image_header,const struct opj_cp * p_cp)107 void opj_image_comp_header_update(opj_image_t * p_image_header, const struct opj_cp * p_cp)
108 {
109 OPJ_UINT32 i, l_width, l_height;
110 OPJ_INT32 l_x0, l_y0, l_x1, l_y1;
111 OPJ_INT32 l_comp_x0, l_comp_y0, l_comp_x1, l_comp_y1;
112 opj_image_comp_t* l_img_comp = NULL;
113
114 l_x0 = opj_int_max((OPJ_INT32)p_cp->tx0 , (OPJ_INT32)p_image_header->x0);
115 l_y0 = opj_int_max((OPJ_INT32)p_cp->ty0 , (OPJ_INT32)p_image_header->y0);
116 l_x1 = opj_int_min((OPJ_INT32)(p_cp->tx0 + p_cp->tw * p_cp->tdx), (OPJ_INT32)p_image_header->x1);
117 l_y1 = opj_int_min((OPJ_INT32)(p_cp->ty0 + p_cp->th * p_cp->tdy), (OPJ_INT32)p_image_header->y1);
118
119 l_img_comp = p_image_header->comps;
120 for (i = 0; i < p_image_header->numcomps; ++i) {
121 l_comp_x0 = opj_int_ceildiv(l_x0, (OPJ_INT32)l_img_comp->dx);
122 l_comp_y0 = opj_int_ceildiv(l_y0, (OPJ_INT32)l_img_comp->dy);
123 l_comp_x1 = opj_int_ceildiv(l_x1, (OPJ_INT32)l_img_comp->dx);
124 l_comp_y1 = opj_int_ceildiv(l_y1, (OPJ_INT32)l_img_comp->dy);
125 l_width = (OPJ_UINT32)opj_int_ceildivpow2(l_comp_x1 - l_comp_x0, (OPJ_INT32)l_img_comp->factor);
126 l_height = (OPJ_UINT32)opj_int_ceildivpow2(l_comp_y1 - l_comp_y0, (OPJ_INT32)l_img_comp->factor);
127 l_img_comp->w = l_width;
128 l_img_comp->h = l_height;
129 l_img_comp->x0 = (OPJ_UINT32)l_comp_x0/*l_x0*/;
130 l_img_comp->y0 = (OPJ_UINT32)l_comp_y0/*l_y0*/;
131 ++l_img_comp;
132 }
133 }
134
135
136 /**
137 * Copy only header of image and its component header (no data are copied)
138 * if dest image have data, they will be freed
139 *
140 * @param p_image_src the src image
141 * @param p_image_dest the dest image
142 *
143 */
opj_copy_image_header(const opj_image_t * p_image_src,opj_image_t * p_image_dest)144 void opj_copy_image_header(const opj_image_t* p_image_src, opj_image_t* p_image_dest)
145 {
146 OPJ_UINT32 compno;
147
148 /* preconditions */
149 assert(p_image_src != 00);
150 assert(p_image_dest != 00);
151
152 p_image_dest->x0 = p_image_src->x0;
153 p_image_dest->y0 = p_image_src->y0;
154 p_image_dest->x1 = p_image_src->x1;
155 p_image_dest->y1 = p_image_src->y1;
156
157 if (p_image_dest->comps){
158 for(compno = 0; compno < p_image_dest->numcomps; compno++) {
159 opj_image_comp_t *image_comp = &(p_image_dest->comps[compno]);
160 if(image_comp->data) {
161 opj_free(image_comp->data);
162 }
163 }
164 opj_free(p_image_dest->comps);
165 p_image_dest->comps = NULL;
166 }
167
168 p_image_dest->numcomps = p_image_src->numcomps;
169
170 p_image_dest->comps = (opj_image_comp_t*) opj_malloc(p_image_dest->numcomps * sizeof(opj_image_comp_t));
171 if (!p_image_dest->comps){
172 p_image_dest->comps = NULL;
173 p_image_dest->numcomps = 0;
174 return;
175 }
176
177 for (compno=0; compno < p_image_dest->numcomps; compno++){
178 memcpy( &(p_image_dest->comps[compno]),
179 &(p_image_src->comps[compno]),
180 sizeof(opj_image_comp_t));
181 p_image_dest->comps[compno].data = NULL;
182 }
183
184 p_image_dest->color_space = p_image_src->color_space;
185 p_image_dest->icc_profile_len = p_image_src->icc_profile_len;
186
187 if (p_image_dest->icc_profile_len) {
188 p_image_dest->icc_profile_buf = (OPJ_BYTE*)opj_malloc(p_image_dest->icc_profile_len);
189 if (!p_image_dest->icc_profile_buf){
190 p_image_dest->icc_profile_buf = NULL;
191 p_image_dest->icc_profile_len = 0;
192 return;
193 }
194 memcpy( p_image_dest->icc_profile_buf,
195 p_image_src->icc_profile_buf,
196 p_image_src->icc_profile_len);
197 }
198 else
199 p_image_dest->icc_profile_buf = NULL;
200
201 return;
202 }
203
opj_image_tile_create(OPJ_UINT32 numcmpts,opj_image_cmptparm_t * cmptparms,OPJ_COLOR_SPACE clrspc)204 opj_image_t* OPJ_CALLCONV opj_image_tile_create(OPJ_UINT32 numcmpts, opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc) {
205 OPJ_UINT32 compno;
206 opj_image_t *image = 00;
207
208 image = (opj_image_t*) opj_calloc(1,sizeof(opj_image_t));
209 if (image)
210 {
211
212 image->color_space = clrspc;
213 image->numcomps = numcmpts;
214
215 /* allocate memory for the per-component information */
216 image->comps = (opj_image_comp_t*)opj_calloc(image->numcomps, sizeof(opj_image_comp_t));
217 if (!image->comps) {
218 opj_image_destroy(image);
219 return 00;
220 }
221
222 /* create the individual image components */
223 for(compno = 0; compno < numcmpts; compno++) {
224 opj_image_comp_t *comp = &image->comps[compno];
225 comp->dx = cmptparms[compno].dx;
226 comp->dy = cmptparms[compno].dy;
227 comp->w = cmptparms[compno].w;
228 comp->h = cmptparms[compno].h;
229 comp->x0 = cmptparms[compno].x0;
230 comp->y0 = cmptparms[compno].y0;
231 comp->prec = cmptparms[compno].prec;
232 comp->sgnd = cmptparms[compno].sgnd;
233 comp->data = 0;
234 }
235 }
236
237 return image;
238 }
239