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 opj_image_t *image = (opj_image_t*)opj_calloc(1, sizeof(opj_image_t)); 36 return image; 37 } 38 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 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 */ 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 */ 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 } 203 204 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_malloc(sizeof(opj_image_t)); 209 if (image) 210 { 211 memset(image,0,sizeof(opj_image_t)); 212 213 image->color_space = clrspc; 214 image->numcomps = numcmpts; 215 216 /* allocate memory for the per-component information */ 217 image->comps = (opj_image_comp_t*)opj_malloc(image->numcomps * sizeof(opj_image_comp_t)); 218 if (!image->comps) { 219 opj_image_destroy(image); 220 return 00; 221 } 222 memset(image->comps,0,image->numcomps * sizeof(opj_image_comp_t)); 223 224 /* create the individual image components */ 225 for(compno = 0; compno < numcmpts; compno++) { 226 opj_image_comp_t *comp = &image->comps[compno]; 227 comp->dx = cmptparms[compno].dx; 228 comp->dy = cmptparms[compno].dy; 229 comp->w = cmptparms[compno].w; 230 comp->h = cmptparms[compno].h; 231 comp->x0 = cmptparms[compno].x0; 232 comp->y0 = cmptparms[compno].y0; 233 comp->prec = cmptparms[compno].prec; 234 comp->sgnd = cmptparms[compno].sgnd; 235 comp->data = 0; 236 } 237 } 238 239 return image; 240 } 241
