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