src/lib/openjp2/image.c

   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 }