libopenjpeg/openjpeg.c

   1 /*
   2  * Copyright (c) 2005, Herve 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 #ifdef _WIN32
  28 #include <windows.h>
  29 #endif /* _WIN32 */
  30
  31 #include "opj_config.h"
  32 #include "opj_includes.h"
  33
  34
  35 /**
  36  * Decompression handler.
  37  */
  38 typedef struct opj_decompression
  39 {
  40         /** Main header reading function handler*/
  41         opj_bool (* opj_read_header) (  struct opj_stream_private * cio,
  42                                                                         void * p_codec,
  43                                                                         opj_file_info_t * file_info,
  44                                                                         struct opj_event_mgr * p_manager);
  45         /** FIXME DOC */
  46         opj_image_t* (* opj_decode) (   void * p_codec,
  47                                                                         struct opj_stream_private *p_cio,
  48                                                                         struct opj_event_mgr * p_manager);
  49         /** FIXME DOC */
  50         opj_bool (*opj_read_tile_header)(       void * p_codec,
  51                                                                                 OPJ_UINT32 * p_tile_index,
  52                                                                                 OPJ_UINT32* p_data_size,
  53                                                                                 OPJ_INT32 * p_tile_x0, OPJ_INT32 * p_tile_y0,
  54                                                                                 OPJ_INT32 * p_tile_x1, OPJ_INT32 * p_tile_y1,
  55                                                                                 OPJ_UINT32 * p_nb_comps,
  56                                                                                 opj_bool * p_should_go_on,
  57                                                                                 struct opj_stream_private *p_cio,
  58                                                                                 struct opj_event_mgr * p_manager);
  59         /** FIXME DOC */
  60         opj_bool (*opj_decode_tile_data)(       void * p_codec,
  61                                                                                 OPJ_UINT32 p_tile_index,
  62                                                                                 OPJ_BYTE * p_data,
  63                                                                                 OPJ_UINT32 p_data_size,
  64                                                                                 struct opj_stream_private *p_cio,
  65                                                                                 struct opj_event_mgr * p_manager);
  66         /** FIXME DOC */
  67         opj_bool (* opj_end_decompress) (       void *p_codec,
  68                                                                                 struct opj_stream_private *cio,
  69                                                                                 struct opj_event_mgr * p_manager);
  70         /** Codec destroy function handler*/
  71         void (* opj_destroy) (void * p_codec);
  72         /** Setup decoder function handler */
  73         void (*opj_setup_decoder) (void * p_codec, opj_dparameters_t * p_param);
  74         /** Set decode area function handler */
  75         opj_bool (*opj_set_decode_area) (       void * p_codec,
  76                                                                                 OPJ_INT32 p_start_x, OPJ_INT32 p_end_x,
  77                                                                                 OPJ_INT32 p_start_y, OPJ_INT32 p_end_y,
  78                                                                                 struct opj_event_mgr * p_manager);
  79 }opj_decompression_t;
  80
  81 /**
  82  * Compression handler. FIXME DOC
  83  */
  84 typedef struct opj_compression
  85 {
  86         opj_bool (* opj_start_compress) (void *p_codec,struct opj_stream_private *cio,struct opj_image * p_image,       struct opj_event_mgr * p_manager);
  87         opj_bool (* opj_encode) (void * p_codec, struct opj_stream_private *p_cio, struct opj_event_mgr * p_manager);
  88         opj_bool (* opj_write_tile) (void * p_codec,OPJ_UINT32 p_tile_index,OPJ_BYTE * p_data,OPJ_UINT32 p_data_size,struct opj_stream_private * p_cio,struct opj_event_mgr * p_manager);
  89         opj_bool (* opj_end_compress) (void * p_codec, struct opj_stream_private *p_cio, struct opj_event_mgr * p_manager);
  90         void (* opj_destroy) (void * p_codec);
  91         void (*opj_setup_encoder) (void * p_codec,opj_cparameters_t * p_param,struct opj_image * p_image, struct opj_event_mgr * p_manager);
  92
  93 }opj_compression_t;
  94
  95 /**
  96  * Main codec handler used for compression or decompression.
  97  */
  98 typedef struct opj_codec_private
  99 {
 100         /** FIXME DOC */
 101         union {
 102                 opj_decompression_t m_decompression;
 103                 opj_compression_t m_compression;
 104     } m_codec_data;
 105     /** FIXME DOC*/
 106         void * m_codec;
 107         /** Event handler */
 108         opj_event_mgr_t* m_event_mgr;
 109         /** Flag to indicate if the codec is used to decode or encode*/
 110         opj_bool is_decompressor;
 111 }
 112 opj_codec_private_t;
 113
 114
 115
 116 /* ---------------------------------------------------------------------- */
 117
 118
 119 OPJ_UINT32 opj_read_from_file (void * p_buffer, OPJ_UINT32 p_nb_bytes, FILE * p_file)
 120 {
 121         OPJ_UINT32 l_nb_read = fread(p_buffer,1,p_nb_bytes,p_file);
 122         return l_nb_read ? l_nb_read : -1;
 123 }
 124
 125 OPJ_UINT32 opj_write_from_file (void * p_buffer, OPJ_UINT32 p_nb_bytes, FILE * p_file)
 126 {
 127         return fwrite(p_buffer,1,p_nb_bytes,p_file);
 128 }
 129
 130 OPJ_SIZE_T opj_skip_from_file (OPJ_SIZE_T p_nb_bytes, FILE * p_user_data)
 131 {
 132         if (fseek(p_user_data,p_nb_bytes,SEEK_CUR)) {
 133                 return -1;
 134         }
 135
 136         return p_nb_bytes;
 137 }
 138
 139 opj_bool opj_seek_from_file (OPJ_SIZE_T p_nb_bytes, FILE * p_user_data)
 140 {
 141         if (fseek(p_user_data,p_nb_bytes,SEEK_SET)) {
 142                 return EXIT_FAILURE;
 143         }
 144
 145         return EXIT_SUCCESS;
 146 }
 147
 148 /* ---------------------------------------------------------------------- */
 149 #ifdef _WIN32
 150 #ifndef OPJ_STATIC
 151 BOOL APIENTRY
 152 DllMain(HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) {
 153
 154         OPJ_ARG_NOT_USED(lpReserved);
 155         OPJ_ARG_NOT_USED(hModule);
 156
 157         switch (ul_reason_for_call) {
 158                 case DLL_PROCESS_ATTACH :
 159                         break;
 160                 case DLL_PROCESS_DETACH :
 161                         break;
 162                 case DLL_THREAD_ATTACH :
 163                 case DLL_THREAD_DETACH :
 164                         break;
 165     }
 166
 167     return TRUE;
 168 }
 169 #endif /* OPJ_STATIC */
 170 #endif /* _WIN32 */
 171
 172 /* ---------------------------------------------------------------------- */
 173
 174
 175 const char* OPJ_CALLCONV opj_version(void) {
 176     return PACKAGE_VERSION;
 177 }
 178
 179
 180
 181 opj_dinfo_t* OPJ_CALLCONV opj_create_decompress(OPJ_CODEC_FORMAT format) {
 182         opj_dinfo_t *dinfo = (opj_dinfo_t*)opj_calloc(1, sizeof(opj_dinfo_t));
 183         if(!dinfo) return NULL;
 184         dinfo->is_decompressor = OPJ_TRUE;
 185         switch(format) {
 186                 case CODEC_J2K:
 187                 case CODEC_JPT:
 188                         /* get a J2K decoder handle */
 189                         dinfo->j2k_handle = (void*)j2k_create_decompress((opj_common_ptr)dinfo);
 190                         if(!dinfo->j2k_handle) {
 191                                 opj_free(dinfo);
 192                                 return NULL;
 193                         }
 194                         break;
 195                 case CODEC_JP2:
 196                         /* get a JP2 decoder handle */
 197                         dinfo->jp2_handle = (void*)jp2_create_decompress((opj_common_ptr)dinfo);
 198                         if(!dinfo->jp2_handle) {
 199                                 opj_free(dinfo);
 200                                 return NULL;
 201                         }
 202                         break;
 203                 case CODEC_UNKNOWN:
 204                 default:
 205                         opj_free(dinfo);
 206                         return NULL;
 207         }
 208
 209         dinfo->codec_format = format;
 210
 211         return dinfo;
 212 }
 213
 214 opj_codec_t* OPJ_CALLCONV opj_create_decompress_v2(OPJ_CODEC_FORMAT p_format)
 215 {
 216         opj_codec_private_t *l_info = 00;
 217
 218         l_info = (opj_codec_private_t*) opj_calloc(1, sizeof(opj_codec_private_t));
 219         if (!l_info){
 220                 return 00;
 221         }
 222         memset(l_info, 0, sizeof(opj_codec_private_t));
 223
 224         l_info->is_decompressor = 1;
 225
 226         switch (p_format) {
 227                 case CODEC_J2K:
 228                         l_info->m_codec_data.m_decompression.opj_decode =
 229                                         (opj_image_t* (*) (void *, struct opj_stream_private *, struct opj_event_mgr * ))j2k_decode; // TODO MSD
 230
 231                         l_info->m_codec_data.m_decompression.opj_end_decompress =
 232                                         (opj_bool (*) (void *, struct opj_stream_private *, struct opj_event_mgr *))j2k_end_decompress;
 233
 234                         l_info->m_codec_data.m_decompression.opj_read_header =
 235                                         (opj_bool (*) ( struct opj_stream_private *,
 236                                                                         void *,
 237                                                                         opj_file_info_t *,
 238                                                                         struct opj_event_mgr * )) j2k_read_header;
 239
 240                         l_info->m_codec_data.m_decompression.opj_destroy = (void (*) (void *))j2k_destroy;
 241
 242                         l_info->m_codec_data.m_decompression.opj_setup_decoder = (void (*) (void * , opj_dparameters_t * )) j2k_setup_decoder_v2;
 243
 244                         l_info->m_codec_data.m_decompression.opj_read_tile_header =
 245                                         (opj_bool (*) ( void *,
 246                                                                         OPJ_UINT32*,
 247                                                                         OPJ_UINT32*,
 248                                                                         OPJ_INT32*, OPJ_INT32*,
 249                                                                         OPJ_INT32*, OPJ_INT32*,
 250                                                                         OPJ_UINT32*,
 251                                                                         opj_bool*,
 252                                                                         struct opj_stream_private *,
 253                                                                         struct opj_event_mgr * )) j2k_read_tile_header;
 254
 255                         l_info->m_codec_data.m_decompression.opj_decode_tile_data =
 256                                         (opj_bool (*) (void *, OPJ_UINT32, OPJ_BYTE*, OPJ_UINT32, struct opj_stream_private *, struct opj_event_mgr *)) j2k_decode_tile;
 257
 258                         l_info->m_codec_data.m_decompression.opj_set_decode_area =
 259                                         (opj_bool (*) (void *, OPJ_INT32, OPJ_INT32, OPJ_INT32, OPJ_INT32, struct opj_event_mgr *)) j2k_set_decode_area;
 260
 261                         l_info->m_codec = j2k_create_decompress_v2();
 262
 263                         if (! l_info->m_codec) {
 264                                 opj_free(l_info);
 265                                 return NULL;
 266                         }
 267
 268                         break;
 269
 270                 case CODEC_JP2:
 271                         /* get a JP2 decoder handle */
 272                         l_info->m_codec_data.m_decompression.opj_decode = (opj_image_t* (*) (void *, struct opj_stream_private *, struct opj_event_mgr * ))opj_jp2_decode; // TODO MSD
 273
 274                         l_info->m_codec_data.m_decompression.opj_end_decompress =  (opj_bool (*) (void *,struct opj_stream_private *,struct opj_event_mgr *)) jp2_end_decompress;
 275
 276                         l_info->m_codec_data.m_decompression.opj_read_header =  (opj_bool (*) (
 277                                         struct opj_stream_private *,
 278                                         void *,
 279                                         opj_file_info_t *,
 280                                         struct opj_event_mgr * )) jp2_read_header;
 281
 282                         l_info->m_codec_data.m_decompression.opj_read_tile_header = ( opj_bool (*) (
 283                                         void *,
 284                                         OPJ_UINT32*,
 285                                         OPJ_UINT32*,
 286                                         OPJ_INT32*,
 287                                         OPJ_INT32*,
 288                                         OPJ_INT32 * ,
 289                                         OPJ_INT32 * ,
 290                                         OPJ_UINT32 * ,
 291                                         opj_bool *,
 292                                         struct opj_stream_private *,
 293                                         struct opj_event_mgr * )) jp2_read_tile_header;
 294
 295                         l_info->m_codec_data.m_decompression.opj_decode_tile_data = (opj_bool (*) (void *,OPJ_UINT32,OPJ_BYTE*,OPJ_UINT32,struct opj_stream_private *,  struct opj_event_mgr * )) opj_jp2_decode_tile;
 296
 297                         l_info->m_codec_data.m_decompression.opj_destroy = (void (*) (void *))jp2_destroy;
 298
 299                         l_info->m_codec_data.m_decompression.opj_setup_decoder = (void (*) (void * ,opj_dparameters_t * )) jp2_setup_decoder_v2;
 300
 301                         l_info->m_codec_data.m_decompression.opj_set_decode_area = (opj_bool (*) (void *,OPJ_INT32,OPJ_INT32,OPJ_INT32,OPJ_INT32, struct opj_event_mgr * )) jp2_set_decode_area;
 302
 303                         l_info->m_codec = jp2_create(OPJ_TRUE);
 304
 305                         if (! l_info->m_codec) {
 306                                 opj_free(l_info);
 307                                 return 00;
 308                         }
 309
 310                         break;
 311                 case CODEC_UNKNOWN:
 312                 case CODEC_JPT:
 313                 default:
 314                         opj_free(l_info);
 315                         return 00;
 316         }
 317
 318         // FIXME set_default_event_handler(&(l_info->m_event_mgr));
 319         return (opj_codec_t*) l_info;
 320 }
 321
 322
 323 void OPJ_CALLCONV opj_destroy_decompress(opj_dinfo_t *dinfo) {
 324         if(dinfo) {
 325                 /* destroy the codec */
 326                 switch(dinfo->codec_format) {
 327                         case CODEC_J2K:
 328                         case CODEC_JPT:
 329                                 j2k_destroy_decompress((opj_j2k_t*)dinfo->j2k_handle);
 330                                 break;
 331                         case CODEC_JP2:
 332                                 jp2_destroy_decompress((opj_jp2_t*)dinfo->jp2_handle);
 333                                 break;
 334                         case CODEC_UNKNOWN:
 335                         default:
 336                                 break;
 337                 }
 338                 /* destroy the decompressor */
 339                 opj_free(dinfo);
 340         }
 341 }
 342
 343 void OPJ_CALLCONV opj_set_default_decoder_parameters(opj_dparameters_t *parameters) {
 344         if(parameters) {
 345                 memset(parameters, 0, sizeof(opj_dparameters_t));
 346                 /* default decoding parameters */
 347                 parameters->cp_layer = 0;
 348                 parameters->cp_reduce = 0;
 349                 parameters->cp_limit_decoding = NO_LIMITATION;
 350
 351                 parameters->decod_format = -1;
 352                 parameters->cod_format = -1;
 353 /* UniPG>> */
 354 #ifdef USE_JPWL
 355                 parameters->jpwl_correct = OPJ_FALSE;
 356                 parameters->jpwl_exp_comps = JPWL_EXPECTED_COMPONENTS;
 357                 parameters->jpwl_max_tiles = JPWL_MAXIMUM_TILES;
 358 #endif /* USE_JPWL */
 359 /* <<UniPG */
 360         }
 361 }
 362
 363 void OPJ_CALLCONV opj_setup_decoder(opj_dinfo_t *dinfo, opj_dparameters_t *parameters) {
 364         if(dinfo && parameters) {
 365                 switch(dinfo->codec_format) {
 366                         case CODEC_J2K:
 367                         case CODEC_JPT:
 368                                 j2k_setup_decoder((opj_j2k_t*)dinfo->j2k_handle, parameters);
 369                                 break;
 370                         case CODEC_JP2:
 371                                 jp2_setup_decoder((opj_jp2_t*)dinfo->jp2_handle, parameters);
 372                                 break;
 373                         case CODEC_UNKNOWN:
 374                         default:
 375                                 break;
 376                 }
 377         }
 378 }
 379
 380 opj_bool OPJ_CALLCONV opj_setup_decoder_v2(opj_codec_t *p_info, opj_dparameters_t *parameters, opj_event_mgr_t* event_mgr)
 381 {
 382         opj_codec_private_t * l_info = (opj_codec_private_t *) p_info;
 383
 384         if ( !p_info || !parameters || !event_mgr ){
 385                 fprintf(stderr, "[ERROR] Input parameters of the setup_decoder function are incorrect.\n");
 386                 return OPJ_FALSE;
 387         }
 388
 389         if ( !event_mgr->error_handler || !event_mgr->warning_handler || !event_mgr->error_handler){
 390                 fprintf(stderr, "[ERROR] Event handler provided to the setup_decoder function is not valid.\n");
 391                 return OPJ_FALSE;
 392         }
 393
 394         if (! l_info->is_decompressor) {
 395                 opj_event_msg_v2(event_mgr, EVT_ERROR, "Codec provided to the setup_decoder function is not a decompressor handler.\n");
 396                 return OPJ_FALSE;
 397         }
 398
 399         l_info->m_codec_data.m_decompression.opj_setup_decoder(l_info->m_codec, parameters);
 400
 401         l_info->m_event_mgr = event_mgr;
 402
 403         return OPJ_TRUE;
 404 }
 405
 406 opj_image_t* OPJ_CALLCONV opj_decode(opj_dinfo_t *dinfo, opj_cio_t *cio) {
 407         return opj_decode_with_info(dinfo, cio, NULL);
 408 }
 409
 410 opj_image_t* OPJ_CALLCONV opj_decode_with_info(opj_dinfo_t *dinfo, opj_cio_t *cio, opj_codestream_info_t *cstr_info) {
 411         if(dinfo && cio) {
 412                 switch(dinfo->codec_format) {
 413                         case CODEC_J2K:
 414                                 return j2k_decode((opj_j2k_t*)dinfo->j2k_handle, cio, cstr_info);
 415                         case CODEC_JPT:
 416                                 return j2k_decode_jpt_stream((opj_j2k_t*)dinfo->j2k_handle, cio, cstr_info);
 417                         case CODEC_JP2:
 418                                 return opj_jp2_decode((opj_jp2_t*)dinfo->jp2_handle, cio, cstr_info);
 419                         case CODEC_UNKNOWN:
 420                         default:
 421                                 break;
 422                 }
 423         }
 424         return NULL;
 425 }
 426
 427 opj_cinfo_t* OPJ_CALLCONV opj_create_compress(OPJ_CODEC_FORMAT format) {
 428         opj_cinfo_t *cinfo = (opj_cinfo_t*)opj_calloc(1, sizeof(opj_cinfo_t));
 429         if(!cinfo) return NULL;
 430         cinfo->is_decompressor = OPJ_FALSE;
 431         switch(format) {
 432                 case CODEC_J2K:
 433                         /* get a J2K coder handle */
 434                         cinfo->j2k_handle = (void*)j2k_create_compress((opj_common_ptr)cinfo);
 435                         if(!cinfo->j2k_handle) {
 436                                 opj_free(cinfo);
 437                                 return NULL;
 438                         }
 439                         break;
 440                 case CODEC_JP2:
 441                         /* get a JP2 coder handle */
 442                         cinfo->jp2_handle = (void*)jp2_create_compress((opj_common_ptr)cinfo);
 443                         if(!cinfo->jp2_handle) {
 444                                 opj_free(cinfo);
 445                                 return NULL;
 446                         }
 447                         break;
 448                 case CODEC_JPT:
 449                 case CODEC_UNKNOWN:
 450                 default:
 451                         opj_free(cinfo);
 452                         return NULL;
 453         }
 454
 455         cinfo->codec_format = format;
 456
 457         return cinfo;
 458 }
 459
 460 void OPJ_CALLCONV opj_destroy_compress(opj_cinfo_t *cinfo) {
 461         if(cinfo) {
 462                 /* destroy the codec */
 463                 switch(cinfo->codec_format) {
 464                         case CODEC_J2K:
 465                                 j2k_destroy_compress((opj_j2k_t*)cinfo->j2k_handle);
 466                                 break;
 467                         case CODEC_JP2:
 468                                 jp2_destroy_compress((opj_jp2_t*)cinfo->jp2_handle);
 469                                 break;
 470                         case CODEC_JPT:
 471                         case CODEC_UNKNOWN:
 472                         default:
 473                                 break;
 474                 }
 475                 /* destroy the decompressor */
 476                 opj_free(cinfo);
 477         }
 478 }
 479
 480 void OPJ_CALLCONV opj_set_default_encoder_parameters(opj_cparameters_t *parameters) {
 481         if(parameters) {
 482                 memset(parameters, 0, sizeof(opj_cparameters_t));
 483                 /* default coding parameters */
 484                 parameters->cp_cinema = OFF;
 485                 parameters->max_comp_size = 0;
 486                 parameters->numresolution = 6;
 487                 parameters->cp_rsiz = STD_RSIZ;
 488                 parameters->cblockw_init = 64;
 489                 parameters->cblockh_init = 64;
 490                 parameters->prog_order = LRCP;
 491                 parameters->roi_compno = -1;            /* no ROI */
 492                 parameters->subsampling_dx = 1;
 493                 parameters->subsampling_dy = 1;
 494                 parameters->tp_on = 0;
 495                 parameters->decod_format = -1;
 496                 parameters->cod_format = -1;
 497                 parameters->tcp_rates[0] = 0;
 498                 parameters->tcp_numlayers = 0;
 499                 parameters->cp_disto_alloc = 0;
 500                 parameters->cp_fixed_alloc = 0;
 501                 parameters->cp_fixed_quality = 0;
 502                 parameters->jpip_on = OPJ_FALSE;
 503 /* UniPG>> */
 504 #ifdef USE_JPWL
 505                 parameters->jpwl_epc_on = OPJ_FALSE;
 506                 parameters->jpwl_hprot_MH = -1; /* -1 means unassigned */
 507                 {
 508                         int i;
 509                         for (i = 0; i < JPWL_MAX_NO_TILESPECS; i++) {
 510                                 parameters->jpwl_hprot_TPH_tileno[i] = -1; /* unassigned */
 511                                 parameters->jpwl_hprot_TPH[i] = 0; /* absent */
 512                         }
 513                 };
 514                 {
 515                         int i;
 516                         for (i = 0; i < JPWL_MAX_NO_PACKSPECS; i++) {
 517                                 parameters->jpwl_pprot_tileno[i] = -1; /* unassigned */
 518                                 parameters->jpwl_pprot_packno[i] = -1; /* unassigned */
 519                                 parameters->jpwl_pprot[i] = 0; /* absent */
 520                         }
 521                 };
 522                 parameters->jpwl_sens_size = 0; /* 0 means no ESD */
 523                 parameters->jpwl_sens_addr = 0; /* 0 means auto */
 524                 parameters->jpwl_sens_range = 0; /* 0 means packet */
 525                 parameters->jpwl_sens_MH = -1; /* -1 means unassigned */
 526                 {
 527                         int i;
 528                         for (i = 0; i < JPWL_MAX_NO_TILESPECS; i++) {
 529                                 parameters->jpwl_sens_TPH_tileno[i] = -1; /* unassigned */
 530                                 parameters->jpwl_sens_TPH[i] = -1; /* absent */
 531                         }
 532                 };
 533 #endif /* USE_JPWL */
 534 /* <<UniPG */
 535         }
 536 }
 537
 538 /**
 539  * Helper function.
 540  * Sets the stream to be a file stream. The FILE must have been open previously.
 541  * @param               p_stream        the stream to modify
 542  * @param               p_file          handler to an already open file.
 543 */
 544 opj_stream_t* OPJ_CALLCONV opj_stream_create_default_file_stream (FILE * p_file, opj_bool p_is_read_stream)
 545 {
 546         return opj_stream_create_file_stream(p_file,J2K_STREAM_CHUNK_SIZE,p_is_read_stream);
 547 }
 548
 549 opj_stream_t* OPJ_CALLCONV opj_stream_create_file_stream (FILE * p_file, OPJ_UINT32 p_size, opj_bool p_is_read_stream)
 550 {
 551         opj_stream_t* l_stream = 00;
 552
 553         if (! p_file) {
 554                 return NULL;
 555         }
 556
 557         l_stream = opj_stream_create(p_size,p_is_read_stream);
 558         if (! l_stream) {
 559                 return NULL;
 560         }
 561
 562         opj_stream_set_user_data(l_stream, p_file);
 563         opj_stream_set_read_function(l_stream, (opj_stream_read_fn) opj_read_from_file);
 564         opj_stream_set_write_function(l_stream, (opj_stream_write_fn) opj_write_from_file);
 565         opj_stream_set_skip_function(l_stream, (opj_stream_skip_fn) opj_skip_from_file);
 566         opj_stream_set_seek_function(l_stream, (opj_stream_seek_fn) opj_seek_from_file);
 567
 568         return l_stream;
 569 }
 570
 571 void OPJ_CALLCONV opj_setup_encoder(opj_cinfo_t *cinfo, opj_cparameters_t *parameters, opj_image_t *image) {
 572         if(cinfo && parameters && image) {
 573                 switch(cinfo->codec_format) {
 574                         case CODEC_J2K:
 575                                 j2k_setup_encoder((opj_j2k_t*)cinfo->j2k_handle, parameters, image);
 576                                 break;
 577                         case CODEC_JP2:
 578                                 jp2_setup_encoder((opj_jp2_t*)cinfo->jp2_handle, parameters, image);
 579                                 break;
 580                         case CODEC_JPT:
 581                         case CODEC_UNKNOWN:
 582                         default:
 583                                 break;
 584                 }
 585         }
 586 }
 587
 588 opj_bool OPJ_CALLCONV opj_encode(opj_cinfo_t *cinfo, opj_cio_t *cio, opj_image_t *image, char *index) {
 589         if (index != NULL)
 590                 opj_event_msg((opj_common_ptr)cinfo, EVT_WARNING, "Set index to NULL when calling the opj_encode function.\n"
 591                 "To extract the index, use the opj_encode_with_info() function.\n"
 592                 "No index will be generated during this encoding\n");
 593         return opj_encode_with_info(cinfo, cio, image, NULL);
 594 }
 595
 596 opj_bool OPJ_CALLCONV opj_encode_with_info(opj_cinfo_t *cinfo, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info) {
 597         if(cinfo && cio && image) {
 598                 switch(cinfo->codec_format) {
 599                         case CODEC_J2K:
 600                                 return j2k_encode((opj_j2k_t*)cinfo->j2k_handle, cio, image, cstr_info);
 601                         case CODEC_JP2:
 602                                 return opj_jp2_encode((opj_jp2_t*)cinfo->jp2_handle, cio, image, cstr_info);
 603                         case CODEC_JPT:
 604                         case CODEC_UNKNOWN:
 605                         default:
 606                                 break;
 607                 }
 608         }
 609         return OPJ_FALSE;
 610 }
 611
 612 void OPJ_CALLCONV opj_destroy_cstr_info(opj_codestream_info_t *cstr_info) {
 613         if (cstr_info) {
 614                 int tileno;
 615                 for (tileno = 0; tileno < cstr_info->tw * cstr_info->th; tileno++) {
 616                         opj_tile_info_t *tile_info = &cstr_info->tile[tileno];
 617                         opj_free(tile_info->thresh);
 618                         opj_free(tile_info->packet);
 619                         opj_free(tile_info->tp);
 620                         opj_free(tile_info->marker);
 621                 }
 622                 opj_free(cstr_info->tile);
 623                 opj_free(cstr_info->marker);
 624                 opj_free(cstr_info->numdecompos);
 625         }
 626 }
 627
 628
 629
 630 #ifdef OLD_WAY_MS
 631 opj_bool OPJ_CALLCONV opj_read_header (
 632                                                                    opj_codec_t *p_codec,
 633                                                                    opj_image_t ** p_image,
 634                                                                    OPJ_INT32 * p_tile_x0,
 635                                                                    OPJ_INT32 * p_tile_y0,
 636                                                                    OPJ_UINT32 * p_tile_width,
 637                                                                    OPJ_UINT32 * p_tile_height,
 638                                                                    OPJ_UINT32 * p_nb_tiles_x,
 639                                                                    OPJ_UINT32 * p_nb_tiles_y,
 640                                                                    opj_stream_t *p_cio)
 641 {
 642         if (p_codec && p_cio) {
 643                 opj_codec_private_t * l_info = (opj_codec_private_t *) p_codec;
 644                 opj_stream_private_t * l_cio = (opj_stream_private_t *) p_cio;
 645
 646                 if(! l_info->is_decompressor) {
 647                         return OPJ_FALSE;
 648                 }
 649
 650                 return l_info->m_codec_data.m_decompression.opj_read_header(
 651                         l_info->m_codec,
 652                         p_image,
 653                         p_tile_x0,
 654                         p_tile_y0,
 655                         p_tile_width,
 656                         p_tile_height,
 657                         p_nb_tiles_x,
 658                         p_nb_tiles_y,
 659                         l_cio,
 660                         l_info->m_event_mgr); //&(l_info->m_event_mgr));
 661         }
 662         return OPJ_FALSE;
 663 }
 664 #endif
 665
 666 opj_bool OPJ_CALLCONV opj_read_header ( opj_stream_t *p_cio,
 667                                                                                 opj_codec_t *p_codec,
 668                                                                                 opj_file_info_t* p_file_info,
 669                                                                                 OPJ_INT32 file_info_flag)
 670
 671 {
 672         /* Initialize the output structure */
 673         opj_initialise_file_info(p_file_info, file_info_flag, CODEC_J2K);
 674
 675         if (p_codec && p_cio) {
 676                 opj_codec_private_t* l_info = (opj_codec_private_t*) p_codec;
 677                 opj_stream_private_t* l_cio = (opj_stream_private_t*) p_cio;
 678
 679                 if(! l_info->is_decompressor) {
 680                         opj_event_msg_v2(l_info->m_event_mgr, EVT_ERROR, "Codec provided to the read_header function is not a decompressor handler.\n");
 681                         return OPJ_FALSE;
 682                 }
 683
 684                 return l_info->m_codec_data.m_decompression.opj_read_header(
 685                                         l_cio,
 686                                         l_info->m_codec,
 687                                         p_file_info,
 688                                         l_info->m_event_mgr);
 689         }
 690
 691         fprintf(stderr, "[ERROR] Input parameters of the read_header function are incorrect.\n");
 692         return OPJ_FALSE;
 693 }
 694
 695
 696 void OPJ_CALLCONV opj_destroy_codec(opj_codec_t *p_info)
 697 {
 698         if (p_info) {
 699                 opj_codec_private_t * l_info = (opj_codec_private_t *) p_info;
 700
 701                 if (l_info->is_decompressor) {
 702                         l_info->m_codec_data.m_decompression.opj_destroy(l_info->m_codec);
 703                 }
 704                 else {
 705                         l_info->m_codec_data.m_compression.opj_destroy(l_info->m_codec);
 706                 }
 707
 708                 l_info->m_codec = 00;
 709                 opj_free(l_info);
 710         }
 711 }
 712
 713 /**
 714  * Sets the given area to be decoded. This function should be called right after opj_read_header and before any tile header reading.
 715  *
 716  * @param       p_codec                 the jpeg2000 codec.
 717  * @param       p_start_x               the left position of the rectangle to decode (in image coordinates).
 718  * @param       p_end_x                 the right position of the rectangle to decode (in image coordinates).
 719  * @param       p_start_y               the up position of the rectangle to decode (in image coordinates).
 720  * @param       p_end_y                 the bottom position of the rectangle to decode (in image coordinates).
 721  *
 722  * @return      true                    if the area could be set.
 723  */
 724 opj_bool OPJ_CALLCONV opj_set_decode_area(      opj_codec_t *p_codec,
 725                                                                                         OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
 726                                                                                         OPJ_INT32 p_end_x, OPJ_INT32 p_end_y
 727                                                                                         )
 728 {
 729         if (p_codec) {
 730                 opj_codec_private_t * l_info = (opj_codec_private_t *) p_codec;
 731                 if (! l_info->is_decompressor) {
 732                         return OPJ_FALSE;
 733                 }
 734
 735                 return  l_info->m_codec_data.m_decompression.opj_set_decode_area(
 736                                 l_info->m_codec,
 737                                 p_start_x,
 738                                 p_start_y,
 739                                 p_end_x,
 740                                 p_end_y,
 741                                 l_info->m_event_mgr);
 742
 743         }
 744         return OPJ_FALSE;
 745 }
 746
 747 /**
 748  * Reads a tile header. This function is compulsory and allows one to know the size of the tile thta will be decoded.
 749  * The user may need to refer to the image got by opj_read_header to understand the size being taken by the tile.
 750  *
 751  * @param       p_codec                 the jpeg2000 codec.
 752  * @param       p_tile_index    pointer to a value that will hold the index of the tile being decoded, in case of success.
 753  * @param       p_data_size             pointer to a value that will hold the maximum size of the decoded data, in case of success. In case
 754  *                                                      of truncated codestreams, the actual number of bytes decoded may be lower. The computation of the size is the same
 755  *                                                      as depicted in opj_write_tile.
 756  * @param       p_tile_x0               pointer to a value that will hold the x0 pos of the tile (in the image).
 757  * @param       p_tile_y0               pointer to a value that will hold the y0 pos of the tile (in the image).
 758  * @param       p_tile_x1               pointer to a value that will hold the x1 pos of the tile (in the image).
 759  * @param       p_tile_y1               pointer to a value that will hold the y1 pos of the tile (in the image).
 760  * @param       p_nb_comps              pointer to a value that will hold the number of components in the tile.
 761  * @param       p_should_go_on  pointer to a boolean that will hold the fact that the decoding should go on. In case the
 762  *                                                      codestream is over at the time of the call, the value will be set to false. The user should then stop
 763  *                                                      the decoding.
 764  * @param       p_stream                the stream to decode.
 765  * @return      true                    if the tile header could be decoded. In case the decoding should end, the returned value is still true.
 766  *                                                      returning false may be the result of a shortage of memory or an internal error.
 767  */
 768 opj_bool OPJ_CALLCONV opj_read_tile_header(
 769                                         opj_codec_t *p_codec,
 770                                         opj_stream_t * p_stream,
 771                                         OPJ_UINT32 * p_tile_index,
 772                                         OPJ_UINT32 * p_data_size,
 773                                         OPJ_INT32 * p_tile_x0, OPJ_INT32 * p_tile_y0,
 774                                         OPJ_INT32 * p_tile_x1, OPJ_INT32 * p_tile_y1,
 775                                         OPJ_UINT32 * p_nb_comps,
 776                                         opj_bool * p_should_go_on)
 777 {
 778         if (p_codec && p_stream && p_data_size && p_tile_index) {
 779                 opj_codec_private_t * l_info = (opj_codec_private_t *) p_codec;
 780                 opj_stream_private_t * l_cio = (opj_stream_private_t *) p_stream;
 781
 782                 if (! l_info->is_decompressor) {
 783                         return OPJ_FALSE;
 784                 }
 785
 786                 return l_info->m_codec_data.m_decompression.opj_read_tile_header(
 787                         l_info->m_codec,
 788                         p_tile_index,
 789                         p_data_size,
 790                         p_tile_x0, p_tile_y0,
 791                         p_tile_x1, p_tile_y1,
 792                         p_nb_comps,
 793                         p_should_go_on,
 794                         l_cio,
 795                         l_info->m_event_mgr);
 796         }
 797         return OPJ_FALSE;
 798 }
 799
 800 /**
 801  * Reads a tile data. This function is compulsory and allows one to decode tile data. opj_read_tile_header should be called before.
 802  * The user may need to refer to the image got by opj_read_header to understand the size being taken by the tile.
 803  *
 804  * @param       p_codec                 the jpeg2000 codec.
 805  * @param       p_tile_index    the index of the tile being decoded, this should be the value set by opj_read_tile_header.
 806  * @param       p_data                  pointer to a memory block that will hold the decoded data.
 807  * @param       p_data_size             size of p_data. p_data_size should be bigger or equal to the value set by opj_read_tile_header.
 808  * @param       p_stream                the stream to decode.
 809  *
 810  * @return      true                    if the data could be decoded.
 811  */
 812 opj_bool OPJ_CALLCONV opj_decode_tile_data(
 813                                         opj_codec_t *p_codec,
 814                                         OPJ_UINT32 p_tile_index,
 815                                         OPJ_BYTE * p_data,
 816                                         OPJ_UINT32 p_data_size,
 817                                         opj_stream_t *p_stream
 818                                         )
 819 {
 820         if (p_codec && p_data && p_stream) {
 821                 opj_codec_private_t * l_info = (opj_codec_private_t *) p_codec;
 822                 opj_stream_private_t * l_cio = (opj_stream_private_t *) p_stream;
 823
 824                 if (! l_info->is_decompressor) {
 825                         return OPJ_FALSE;
 826                 }
 827
 828                 return l_info->m_codec_data.m_decompression.opj_decode_tile_data(       l_info->m_codec,
 829                                                                                                                                                         p_tile_index,
 830                                                                                                                                                         p_data,
 831                                                                                                                                                         p_data_size,
 832                                                                                                                                                         l_cio,
 833                                                                                                                                                         l_info->m_event_mgr);
 834         }
 835         return OPJ_FALSE;
 836 }