python api for ID property access by Joseph Eager, copied from blender 2.4x.
[blender.git] / extern / libopenjpeg / image.c
1 /*
2  * Copyright (c) 2005, HervĂ© Drolon, FreeImage Team
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
15  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
18  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24  * POSSIBILITY OF SUCH DAMAGE.
25  */
26
27 #include "opj_includes.h"
28
29 opj_image_t* opj_image_create0(void) {
30         opj_image_t *image = (opj_image_t*)opj_malloc(sizeof(opj_image_t));
31         return image;
32 }
33
34 opj_image_t* OPJ_CALLCONV opj_image_create(int numcmpts, opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc) {
35         int compno;
36         opj_image_t *image = NULL;
37
38         image = (opj_image_t*) opj_calloc(1, sizeof(opj_image_t));
39         if(image) {
40                 image->color_space = clrspc;
41                 image->numcomps = numcmpts;
42                 /* allocate memory for the per-component information */
43                 image->comps = (opj_image_comp_t*)opj_malloc(image->numcomps * sizeof(opj_image_comp_t));
44                 if(!image->comps) {
45                         fprintf(stderr,"Unable to allocate memory for image.\n");
46                         opj_image_destroy(image);
47                         return NULL;
48                 }
49                 /* create the individual image components */
50                 for(compno = 0; compno < numcmpts; compno++) {
51                         opj_image_comp_t *comp = &image->comps[compno];
52                         comp->dx = cmptparms[compno].dx;
53                         comp->dy = cmptparms[compno].dy;
54                         comp->w = cmptparms[compno].w;
55                         comp->h = cmptparms[compno].h;
56                         comp->x0 = cmptparms[compno].x0;
57                         comp->y0 = cmptparms[compno].y0;
58                         comp->prec = cmptparms[compno].prec;
59                         comp->bpp = cmptparms[compno].bpp;
60                         comp->sgnd = cmptparms[compno].sgnd;
61                         comp->data = (int*) opj_calloc(comp->w * comp->h, sizeof(int));
62                         if(!comp->data) {
63                                 fprintf(stderr,"Unable to allocate memory for image.\n");
64                                 opj_image_destroy(image);
65                                 return NULL;
66                         }
67                 }
68         }
69
70         return image;
71 }
72
73 void OPJ_CALLCONV opj_image_destroy(opj_image_t *image) {
74         int i;
75         if(image) {
76                 if(image->comps) {
77                         /* image components */
78                         for(i = 0; i < image->numcomps; i++) {
79                                 opj_image_comp_t *image_comp = &image->comps[i];
80                                 if(image_comp->data) {
81                                         opj_free(image_comp->data);
82                                 }
83                         }
84                         opj_free(image->comps);
85                 }
86                 opj_free(image);
87         }
88 }
89