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_image_t **p_image,
  44                                                                         struct opj_event_mgr * p_manager);
  45         /** Decoding function */
  46         opj_bool (*opj_decode) (        void * p_codec,
  47                                                                 struct opj_stream_private *p_cio,
  48                                                                 opj_image_t *p_image,
  49                                                                 struct opj_event_mgr * p_manager);
  50         /** FIXME DOC */
  51         opj_bool (*opj_read_tile_header)(       void * p_codec,
  52                                                                                 OPJ_UINT32 * p_tile_index,
  53                                                                                 OPJ_UINT32* p_data_size,
  54                                                                                 OPJ_INT32 * p_tile_x0, OPJ_INT32 * p_tile_y0,
  55                                                                                 OPJ_INT32 * p_tile_x1, OPJ_INT32 * p_tile_y1,
  56                                                                                 OPJ_UINT32 * p_nb_comps,
  57                                                                                 opj_bool * p_should_go_on,
  58                                                                                 struct opj_stream_private *p_cio,
  59                                                                                 struct opj_event_mgr * p_manager);
  60         /** FIXME DOC */
  61         opj_bool (*opj_decode_tile_data)(       void * p_codec,
  62                                                                                 OPJ_UINT32 p_tile_index,
  63                                                                                 OPJ_BYTE * p_data,
  64                                                                                 OPJ_UINT32 p_data_size,
  65                                                                                 struct opj_stream_private *p_cio,
  66                                                                                 struct opj_event_mgr * p_manager);
  67         /** Reading function used after codestream if necessary */
  68         opj_bool (* opj_end_decompress) (       void *p_codec,
  69                                                                                 struct opj_stream_private *cio,
  70                                                                                 struct opj_event_mgr * p_manager);
  71         /** Codec destroy function handler*/
  72         void (*opj_destroy) (void * p_codec);
  73         /** Setup decoder function handler */
  74         void (*opj_setup_decoder) (void * p_codec, opj_dparameters_t * p_param);
  75         /** Set decode area function handler */
  76         opj_bool (*opj_set_decode_area) (       void * p_codec,
  77                                                                                 opj_image_t* p_image,
  78                                                                                 OPJ_INT32 p_start_x, OPJ_INT32 p_end_x,
  79                                                                                 OPJ_INT32 p_start_y, OPJ_INT32 p_end_y,
  80                                                                                 struct opj_event_mgr * p_manager);
  81
  82         /** Get tile function */
  83         opj_bool (*opj_get_decoded_tile) (      void *p_codec,
  84                                                                                 opj_stream_private_t *p_cio,
  85                                                                                 opj_image_t *p_image,
  86                                                                                 struct opj_event_mgr * p_manager,
  87                                                                                 OPJ_UINT32 tile_index);
  88
  89         /** Set the decoded resolution factor */
  90         opj_bool (*opj_set_decoded_resolution_factor) (void * p_codec, OPJ_UINT32 res_factor, struct opj_event_mgr * p_manager);
  91
  92 }opj_decompression_t;
  93
  94 /**
  95  * Compression handler. FIXME DOC
  96  */
  97 typedef struct opj_compression
  98 {
  99         opj_bool (* opj_start_compress) (       void *p_codec,
 100                                                                                 struct opj_stream_private *cio,
 101                                                                                 struct opj_image * p_image,
 102                                                                                 struct opj_event_mgr * p_manager);
 103
 104         opj_bool (* opj_encode) (       void * p_codec,
 105                                                                 struct opj_stream_private *p_cio,
 106                                                                 struct opj_event_mgr * p_manager);
 107
 108         opj_bool (* opj_write_tile) (   void * p_codec,
 109                                                                         OPJ_UINT32 p_tile_index,
 110                                                                         OPJ_BYTE * p_data,
 111                                                                         OPJ_UINT32 p_data_size,
 112                                                                         struct opj_stream_private * p_cio,
 113                                                                         struct opj_event_mgr * p_manager);
 114
 115         opj_bool (* opj_end_compress) ( void * p_codec,
 116                                                                         struct opj_stream_private *p_cio,
 117                                                                         struct opj_event_mgr * p_manager);
 118
 119         void (* opj_destroy) (void * p_codec);
 120
 121         void (*opj_setup_encoder) (     void * p_codec,
 122                                                                 opj_cparameters_t * p_param,
 123                                                                 struct opj_image * p_image,
 124                                                                 struct opj_event_mgr * p_manager);
 125
 126 }opj_compression_t;
 127
 128 /**
 129  * Main codec handler used for compression or decompression.
 130  */
 131 typedef struct opj_codec_private
 132 {
 133         /** FIXME DOC */
 134         union
 135     {
 136         opj_decompression_t m_decompression;
 137         opj_compression_t m_compression;
 138     } m_codec_data;
 139     /** FIXME DOC*/
 140         void * m_codec;
 141         /** Event handler */
 142         opj_event_mgr_t m_event_mgr;
 143         /** Flag to indicate if the codec is used to decode or encode*/
 144         opj_bool is_decompressor;
 145         void (*opj_dump_codec) (void * p_codec, OPJ_INT32 info_flag, FILE* output_stream);
 146         opj_codestream_info_v2_t* (*opj_get_codec_info)(void* p_codec);
 147         opj_codestream_index_t* (*opj_get_codec_index)(void* p_codec);
 148 }
 149 opj_codec_private_t;
 150
 151 /* ---------------------------------------------------------------------- */
 152 /**
 153  * Default callback function.
 154  * Do nothing.
 155  */
 156 void opj_default_callback (const char *msg, void *client_data)
 157 {
 158 }
 159
 160 void set_default_event_handler(opj_event_mgr_t * p_manager)
 161 {
 162         p_manager->m_error_data = 00;
 163         p_manager->m_warning_data = 00;
 164         p_manager->m_info_data = 00;
 165         p_manager->error_handler = opj_default_callback;
 166         p_manager->info_handler = opj_default_callback;
 167         p_manager->warning_handler = opj_default_callback;
 168 }
 169
 170 opj_bool OPJ_CALLCONV opj_set_info_handler(     opj_codec_t * p_codec,
 171                                                                                         opj_msg_callback p_callback,
 172                                                                                         void * p_user_data)
 173 {
 174         opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
 175         if(! l_codec){
 176                 return OPJ_FALSE;
 177         }
 178
 179         l_codec->m_event_mgr.info_handler = p_callback;
 180         l_codec->m_event_mgr.m_info_data = p_user_data;
 181
 182         return OPJ_TRUE;
 183 }
 184
 185 opj_bool OPJ_CALLCONV opj_set_warning_handler(  opj_codec_t * p_codec,
 186                                                                                                 opj_msg_callback p_callback,
 187                                                                                                 void * p_user_data)
 188 {
 189         opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
 190         if (! l_codec) {
 191                 return OPJ_FALSE;
 192         }
 193
 194         l_codec->m_event_mgr.warning_handler = p_callback;
 195         l_codec->m_event_mgr.m_warning_data = p_user_data;
 196
 197         return OPJ_TRUE;
 198 }
 199
 200 opj_bool OPJ_CALLCONV opj_set_error_handler(opj_codec_t * p_codec,
 201                                                                                         opj_msg_callback p_callback,
 202                                                                                         void * p_user_data)
 203 {
 204         opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
 205         if (! l_codec) {
 206                 return OPJ_FALSE;
 207         }
 208
 209         l_codec->m_event_mgr.error_handler = p_callback;
 210         l_codec->m_event_mgr.m_error_data = p_user_data;
 211
 212         return OPJ_TRUE;
 213 }
 214
 215 /* ---------------------------------------------------------------------- */
 216
 217
 218 OPJ_SIZE_T opj_read_from_file (void * p_buffer, OPJ_SIZE_T p_nb_bytes, FILE * p_file)
 219 {
 220         OPJ_SIZE_T l_nb_read = fread(p_buffer,1,p_nb_bytes,p_file);
 221         return l_nb_read ? l_nb_read : -1;
 222 }
 223
 224 OPJ_UINT64 opj_get_data_length_from_file (FILE * p_file)
 225 {
 226         OPJ_OFF_T file_length = 0;
 227
 228         OPJ_FSEEK(p_file, 0, SEEK_END);
 229         file_length = (OPJ_UINT64)OPJ_FTELL(p_file);
 230         OPJ_FSEEK(p_file, 0, SEEK_SET);
 231
 232         return file_length;
 233 }
 234
 235 OPJ_SIZE_T opj_write_from_file (void * p_buffer, OPJ_SIZE_T p_nb_bytes, FILE * p_file)
 236 {
 237         return fwrite(p_buffer,1,p_nb_bytes,p_file);
 238 }
 239
 240 OPJ_OFF_T opj_skip_from_file (OPJ_OFF_T p_nb_bytes, FILE * p_user_data)
 241 {
 242         if (OPJ_FSEEK(p_user_data,p_nb_bytes,SEEK_CUR)) {
 243                 return -1;
 244         }
 245
 246         return p_nb_bytes;
 247 }
 248
 249 opj_bool opj_seek_from_file (OPJ_OFF_T p_nb_bytes, FILE * p_user_data)
 250 {
 251         if (OPJ_FSEEK(p_user_data,p_nb_bytes,SEEK_SET)) {
 252                 return OPJ_FALSE;
 253         }
 254
 255         return OPJ_TRUE;
 256 }
 257
 258 /* ---------------------------------------------------------------------- */
 259 #ifdef _WIN32
 260 #ifndef OPJ_STATIC
 261 BOOL APIENTRY
 262 DllMain(HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) {
 263
 264         OPJ_ARG_NOT_USED(lpReserved);
 265         OPJ_ARG_NOT_USED(hModule);
 266
 267         switch (ul_reason_for_call) {
 268                 case DLL_PROCESS_ATTACH :
 269                         break;
 270                 case DLL_PROCESS_DETACH :
 271                         break;
 272                 case DLL_THREAD_ATTACH :
 273                 case DLL_THREAD_DETACH :
 274                         break;
 275     }
 276
 277     return TRUE;
 278 }
 279 #endif /* OPJ_STATIC */
 280 #endif /* _WIN32 */
 281
 282 /* ---------------------------------------------------------------------- */
 283
 284
 285 const char* OPJ_CALLCONV opj_version(void) {
 286     return PACKAGE_VERSION;
 287 }
 288
 289 /* ---------------------------------------------------------------------- */
 290 /* DECOMPRESSION FUNCTIONS*/
 291
 292 opj_codec_t* OPJ_CALLCONV opj_create_decompress(OPJ_CODEC_FORMAT p_format)
 293 {
 294         opj_codec_private_t *l_codec = 00;
 295
 296         l_codec = (opj_codec_private_t*) opj_calloc(1, sizeof(opj_codec_private_t));
 297         if (!l_codec){
 298                 return 00;
 299         }
 300         memset(l_codec, 0, sizeof(opj_codec_private_t));
 301
 302         l_codec->is_decompressor = 1;
 303
 304         switch (p_format) {
 305                 case CODEC_J2K:
 306                         l_codec->opj_dump_codec = (void (*) (void*, OPJ_INT32, FILE*)) j2k_dump;
 307
 308                         l_codec->opj_get_codec_info = (opj_codestream_info_v2_t* (*) (void*) ) j2k_get_cstr_info;
 309
 310                         l_codec->opj_get_codec_index = (opj_codestream_index_t* (*) (void*) ) j2k_get_cstr_index;
 311
 312                         l_codec->m_codec_data.m_decompression.opj_decode =
 313                                         (opj_bool (*) ( void *,
 314                                                                         struct opj_stream_private *,
 315                                                                         opj_image_t*, struct opj_event_mgr * )) j2k_decode_v2;
 316
 317                         l_codec->m_codec_data.m_decompression.opj_end_decompress =
 318                                         (opj_bool (*) ( void *,
 319                                                                         struct opj_stream_private *,
 320                                                                         struct opj_event_mgr *)) j2k_end_decompress;
 321
 322                         l_codec->m_codec_data.m_decompression.opj_read_header =
 323                                         (opj_bool (*) ( struct opj_stream_private *,
 324                                                                         void *,
 325                                                                         opj_image_t **,
 326                                                                         struct opj_event_mgr * )) j2k_read_header;
 327
 328                         l_codec->m_codec_data.m_decompression.opj_destroy =
 329                                         (void (*) (void *))j2k_destroy;
 330
 331                         l_codec->m_codec_data.m_decompression.opj_setup_decoder =
 332                                         (void (*) (void * , opj_dparameters_t * )) j2k_setup_decoder_v2;
 333
 334                         l_codec->m_codec_data.m_decompression.opj_read_tile_header =
 335                                         (opj_bool (*) ( void *,
 336                                                                         OPJ_UINT32*,
 337                                                                         OPJ_UINT32*,
 338                                                                         OPJ_INT32*, OPJ_INT32*,
 339                                                                         OPJ_INT32*, OPJ_INT32*,
 340                                                                         OPJ_UINT32*,
 341                                                                         opj_bool*,
 342                                                                         struct opj_stream_private *,
 343                                                                         struct opj_event_mgr * )) j2k_read_tile_header;
 344
 345                         l_codec->m_codec_data.m_decompression.opj_decode_tile_data =
 346                                         (opj_bool (*) (void *, OPJ_UINT32, OPJ_BYTE*, OPJ_UINT32, struct opj_stream_private *, struct opj_event_mgr *)) j2k_decode_tile;
 347
 348                         l_codec->m_codec_data.m_decompression.opj_set_decode_area =
 349                                         (opj_bool (*) (void *, opj_image_t*, OPJ_INT32, OPJ_INT32, OPJ_INT32, OPJ_INT32, struct opj_event_mgr *)) j2k_set_decode_area;
 350
 351                         l_codec->m_codec_data.m_decompression.opj_get_decoded_tile = (opj_bool (*) (void *p_codec,
 352                                                                                                                                                                                 opj_stream_private_t *p_cio,
 353                                                                                                                                                                                 opj_image_t *p_image,
 354                                                                                                                                                                                 struct opj_event_mgr * p_manager,
 355                                                                                                                                                                                 OPJ_UINT32 tile_index)) j2k_get_tile;
 356
 357                         l_codec->m_codec_data.m_decompression.opj_set_decoded_resolution_factor = (opj_bool (*) (void * p_codec,
 358                                                                                                                                                                                                         OPJ_UINT32 res_factor,
 359                                                                                                                                                                                                         struct opj_event_mgr * p_manager)) j2k_set_decoded_resolution_factor;
 360
 361                         l_codec->m_codec = j2k_create_decompress_v2();
 362
 363                         if (! l_codec->m_codec) {
 364                                 opj_free(l_codec);
 365                                 return NULL;
 366                         }
 367
 368                         break;
 369
 370                 case CODEC_JP2:
 371                         /* get a JP2 decoder handle */
 372                         l_codec->opj_dump_codec = (void (*) (void*, OPJ_INT32, FILE*)) jp2_dump;
 373
 374                         l_codec->opj_get_codec_info = (opj_codestream_info_v2_t* (*) (void*) ) jp2_get_cstr_info;
 375
 376                         l_codec->opj_get_codec_index = (opj_codestream_index_t* (*) (void*) ) jp2_get_cstr_index;
 377
 378                         l_codec->m_codec_data.m_decompression.opj_decode =
 379                                         (opj_bool (*) ( void *,
 380                                                                         struct opj_stream_private *,
 381                                                                         opj_image_t*,
 382                                                                         struct opj_event_mgr * )) jp2_decode_v2;
 383
 384                         l_codec->m_codec_data.m_decompression.opj_end_decompress =  (opj_bool (*) (void *,struct opj_stream_private *,struct opj_event_mgr *)) jp2_end_decompress;
 385
 386                         l_codec->m_codec_data.m_decompression.opj_read_header =  (opj_bool (*) (
 387                                         struct opj_stream_private *,
 388                                         void *,
 389                                         opj_image_t **,
 390                                         struct opj_event_mgr * )) jp2_read_header;
 391
 392                         l_codec->m_codec_data.m_decompression.opj_read_tile_header = ( opj_bool (*) (
 393                                         void *,
 394                                         OPJ_UINT32*,
 395                                         OPJ_UINT32*,
 396                                         OPJ_INT32*,
 397                                         OPJ_INT32*,
 398                                         OPJ_INT32 * ,
 399                                         OPJ_INT32 * ,
 400                                         OPJ_UINT32 * ,
 401                                         opj_bool *,
 402                                         struct opj_stream_private *,
 403                                         struct opj_event_mgr * )) jp2_read_tile_header;
 404
 405                         l_codec->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 * )) jp2_decode_tile;
 406
 407                         l_codec->m_codec_data.m_decompression.opj_destroy = (void (*) (void *))jp2_destroy;
 408
 409                         l_codec->m_codec_data.m_decompression.opj_setup_decoder = (void (*) (void * ,opj_dparameters_t * )) jp2_setup_decoder_v2;
 410
 411                         l_codec->m_codec_data.m_decompression.opj_set_decode_area = (opj_bool (*) (void *,opj_image_t*, OPJ_INT32,OPJ_INT32,OPJ_INT32,OPJ_INT32, struct opj_event_mgr * )) jp2_set_decode_area;
 412
 413                         l_codec->m_codec_data.m_decompression.opj_get_decoded_tile = (opj_bool (*) (void *p_codec,
 414                                                                                                                                                                                 opj_stream_private_t *p_cio,
 415                                                                                                                                                                                 opj_image_t *p_image,
 416                                                                                                                                                                                 struct opj_event_mgr * p_manager,
 417                                                                                                                                                                                 OPJ_UINT32 tile_index)) jp2_get_tile;
 418
 419                         l_codec->m_codec_data.m_decompression.opj_set_decoded_resolution_factor = (opj_bool (*) (void * p_codec,
 420                                                                                                                                                                                                         OPJ_UINT32 res_factor,
 421                                                                                                                                                                                                         opj_event_mgr_t * p_manager)) jp2_set_decoded_resolution_factor;
 422
 423                         l_codec->m_codec = jp2_create(OPJ_TRUE);
 424
 425                         if (! l_codec->m_codec) {
 426                                 opj_free(l_codec);
 427                                 return 00;
 428                         }
 429
 430                         break;
 431                 case CODEC_UNKNOWN:
 432                 case CODEC_JPT:
 433                 default:
 434                         opj_free(l_codec);
 435                         return 00;
 436         }
 437
 438         set_default_event_handler(&(l_codec->m_event_mgr));
 439         return (opj_codec_t*) l_codec;
 440 }
 441
 442 void OPJ_CALLCONV opj_set_default_decoder_parameters(opj_dparameters_t *parameters) {
 443         if(parameters) {
 444                 memset(parameters, 0, sizeof(opj_dparameters_t));
 445                 /* default decoding parameters */
 446                 parameters->cp_layer = 0;
 447                 parameters->cp_reduce = 0;
 448                 parameters->cp_limit_decoding = NO_LIMITATION;
 449
 450                 parameters->decod_format = -1;
 451                 parameters->cod_format = -1;
 452                 parameters->flags = 0;
 453 /* UniPG>> */
 454 #ifdef USE_JPWL
 455                 parameters->jpwl_correct = OPJ_FALSE;
 456                 parameters->jpwl_exp_comps = JPWL_EXPECTED_COMPONENTS;
 457                 parameters->jpwl_max_tiles = JPWL_MAXIMUM_TILES;
 458 #endif /* USE_JPWL */
 459 /* <<UniPG */
 460         }
 461 }
 462
 463 opj_bool OPJ_CALLCONV opj_setup_decoder(opj_codec_t *p_codec,
 464                                         opj_dparameters_t *parameters
 465                                                                                 )
 466 {
 467         if (p_codec && parameters) {
 468                 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
 469
 470                 if (! l_codec->is_decompressor) {
 471                         opj_event_msg_v2(&(l_codec->m_event_mgr), EVT_ERROR, "Codec provided to the opj_setup_decoder function is not a decompressor handler.\n");
 472                         return OPJ_FALSE;
 473                 }
 474
 475                 l_codec->m_codec_data.m_decompression.opj_setup_decoder(l_codec->m_codec,
 476                                                                                                                                 parameters);
 477                 return OPJ_TRUE;
 478         }
 479         return OPJ_FALSE;
 480 }
 481
 482 opj_bool OPJ_CALLCONV opj_read_header ( opj_stream_t *p_stream,
 483                                                                                 opj_codec_t *p_codec,
 484                                                                                 opj_image_t **p_image )
 485 {
 486         if (p_codec && p_stream) {
 487                 opj_codec_private_t* l_codec = (opj_codec_private_t*) p_codec;
 488                 opj_stream_private_t* l_stream = (opj_stream_private_t*) p_stream;
 489
 490                 if(! l_codec->is_decompressor) {
 491                         opj_event_msg_v2(&(l_codec->m_event_mgr), EVT_ERROR, "Codec provided to the opj_read_header function is not a decompressor handler.\n");
 492                         return OPJ_FALSE;
 493                 }
 494
 495                 return l_codec->m_codec_data.m_decompression.opj_read_header(   l_stream,
 496                                                                                                                                                 l_codec->m_codec,
 497                                                                                                                                                 p_image,
 498                                                                                                                                                 &(l_codec->m_event_mgr) );
 499         }
 500
 501         return OPJ_FALSE;
 502 }
 503
 504 /*
 505  *
 506  *
 507  */
 508 opj_bool OPJ_CALLCONV opj_decode(   opj_codec_t *p_codec,
 509                                     opj_stream_t *p_stream,
 510                                     opj_image_t* p_image)
 511 {
 512         if (p_codec && p_stream) {
 513                 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
 514                 opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
 515
 516                 if (! l_codec->is_decompressor) {
 517                         return OPJ_FALSE;
 518                 }
 519
 520                 return l_codec->m_codec_data.m_decompression.opj_decode(l_codec->m_codec,
 521                                                                                                                                 l_stream,
 522                                                                                                                                 p_image,
 523                                                                                                                                 &(l_codec->m_event_mgr) );
 524         }
 525
 526         return OPJ_FALSE;
 527 }
 528
 529
 530 /**
 531  * Sets the given area to be decoded. This function should be called right after opj_read_header and before any tile header reading.
 532  *
 533  * @param       p_codec                 the jpeg2000 codec.
 534  * @param       p_start_x               the left position of the rectangle to decode (in image coordinates).
 535  * @param       p_end_x                 the right position of the rectangle to decode (in image coordinates).
 536  * @param       p_start_y               the up position of the rectangle to decode (in image coordinates).
 537  * @param       p_end_y                 the bottom position of the rectangle to decode (in image coordinates).
 538  *
 539  * @return      true                    if the area could be set.
 540  */
 541 opj_bool OPJ_CALLCONV opj_set_decode_area(      opj_codec_t *p_codec,
 542                                                                                         opj_image_t* p_image,
 543                                                                                         OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
 544                                                                                         OPJ_INT32 p_end_x, OPJ_INT32 p_end_y
 545                                                                                         )
 546 {
 547         if (p_codec) {
 548                 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
 549
 550                 if (! l_codec->is_decompressor) {
 551                         return OPJ_FALSE;
 552                 }
 553
 554                 return  l_codec->m_codec_data.m_decompression.opj_set_decode_area(      l_codec->m_codec,
 555                                                                                                                                                         p_image,
 556                                                                                                                                                         p_start_x, p_start_y,
 557                                                                                                                                                         p_end_x, p_end_y,
 558                                                                                                                                                         &(l_codec->m_event_mgr) );
 559         }
 560         return OPJ_FALSE;
 561 }
 562
 563 /**
 564  * Reads a tile header. This function is compulsory and allows one to know the size of the tile thta will be decoded.
 565  * The user may need to refer to the image got by opj_read_header to understand the size being taken by the tile.
 566  *
 567  * @param       p_codec                 the jpeg2000 codec.
 568  * @param       p_tile_index    pointer to a value that will hold the index of the tile being decoded, in case of success.
 569  * @param       p_data_size             pointer to a value that will hold the maximum size of the decoded data, in case of success. In case
 570  *                                                      of truncated codestreams, the actual number of bytes decoded may be lower. The computation of the size is the same
 571  *                                                      as depicted in opj_write_tile.
 572  * @param       p_tile_x0               pointer to a value that will hold the x0 pos of the tile (in the image).
 573  * @param       p_tile_y0               pointer to a value that will hold the y0 pos of the tile (in the image).
 574  * @param       p_tile_x1               pointer to a value that will hold the x1 pos of the tile (in the image).
 575  * @param       p_tile_y1               pointer to a value that will hold the y1 pos of the tile (in the image).
 576  * @param       p_nb_comps              pointer to a value that will hold the number of components in the tile.
 577  * @param       p_should_go_on  pointer to a boolean that will hold the fact that the decoding should go on. In case the
 578  *                                                      codestream is over at the time of the call, the value will be set to false. The user should then stop
 579  *                                                      the decoding.
 580  * @param       p_stream                the stream to decode.
 581  * @return      true                    if the tile header could be decoded. In case the decoding should end, the returned value is still true.
 582  *                                                      returning false may be the result of a shortage of memory or an internal error.
 583  */
 584 opj_bool OPJ_CALLCONV opj_read_tile_header(     opj_codec_t *p_codec,
 585                                                                                         opj_stream_t * p_stream,
 586                                                                                         OPJ_UINT32 * p_tile_index,
 587                                                                                         OPJ_UINT32 * p_data_size,
 588                                                                                         OPJ_INT32 * p_tile_x0, OPJ_INT32 * p_tile_y0,
 589                                                                                         OPJ_INT32 * p_tile_x1, OPJ_INT32 * p_tile_y1,
 590                                                                                         OPJ_UINT32 * p_nb_comps,
 591                                                                                         opj_bool * p_should_go_on)
 592 {
 593         if (p_codec && p_stream && p_data_size && p_tile_index) {
 594                 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
 595                 opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
 596
 597                 if (! l_codec->is_decompressor) {
 598                         return OPJ_FALSE;
 599                 }
 600
 601                 return l_codec->m_codec_data.m_decompression.opj_read_tile_header(      l_codec->m_codec,
 602                                                                                                                                                         p_tile_index,
 603                                                                                                                                                         p_data_size,
 604                                                                                                                                                         p_tile_x0, p_tile_y0,
 605                                                                                                                                                         p_tile_x1, p_tile_y1,
 606                                                                                                                                                         p_nb_comps,
 607                                                                                                                                                         p_should_go_on,
 608                                                                                                                                                         l_stream,
 609                                                                                                                                                         &(l_codec->m_event_mgr));
 610         }
 611         return OPJ_FALSE;
 612 }
 613
 614 /**
 615  * Reads a tile data. This function is compulsory and allows one to decode tile data. opj_read_tile_header should be called before.
 616  * The user may need to refer to the image got by opj_read_header to understand the size being taken by the tile.
 617  *
 618  * @param       p_codec                 the jpeg2000 codec.
 619  * @param       p_tile_index    the index of the tile being decoded, this should be the value set by opj_read_tile_header.
 620  * @param       p_data                  pointer to a memory block that will hold the decoded data.
 621  * @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.
 622  * @param       p_stream                the stream to decode.
 623  *
 624  * @return      true                    if the data could be decoded.
 625  */
 626 opj_bool OPJ_CALLCONV opj_decode_tile_data(     opj_codec_t *p_codec,
 627                                                                                         OPJ_UINT32 p_tile_index,
 628                                                                                         OPJ_BYTE * p_data,
 629                                                                                         OPJ_UINT32 p_data_size,
 630                                                                                         opj_stream_t *p_stream
 631                                                                                         )
 632 {
 633         if (p_codec && p_data && p_stream) {
 634                 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
 635                 opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
 636
 637                 if (! l_codec->is_decompressor) {
 638                         return OPJ_FALSE;
 639                 }
 640
 641                 return l_codec->m_codec_data.m_decompression.opj_decode_tile_data(      l_codec->m_codec,
 642                                                                                                                                                         p_tile_index,
 643                                                                                                                                                         p_data,
 644                                                                                                                                                         p_data_size,
 645                                                                                                                                                         l_stream,
 646                                                                                                                                                         &(l_codec->m_event_mgr) );
 647         }
 648         return OPJ_FALSE;
 649 }
 650
 651 /*
 652  *
 653  *
 654  */
 655 opj_bool OPJ_CALLCONV opj_get_decoded_tile(     opj_codec_t *p_codec,
 656                                                                                         opj_stream_t *p_stream,
 657                                                                                         opj_image_t *p_image,
 658                                                                                         OPJ_UINT32 tile_index)
 659 {
 660         if (p_codec && p_stream) {
 661                 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
 662                 opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
 663
 664                 if (! l_codec->is_decompressor) {
 665                         return OPJ_FALSE;
 666                 }
 667
 668                 return l_codec->m_codec_data.m_decompression.opj_get_decoded_tile(      l_codec->m_codec,
 669                                                                                                                                                         l_stream,
 670                                                                                                                                                         p_image,
 671                                                                                                                                                         &(l_codec->m_event_mgr),
 672                                                                                                                                                         tile_index);
 673         }
 674
 675         return OPJ_FALSE;
 676 }
 677
 678 /*
 679  *
 680  *
 681  */
 682 opj_bool OPJ_CALLCONV opj_set_decoded_resolution_factor(opj_codec_t *p_codec,
 683                                                                                                                 OPJ_UINT32 res_factor )
 684 {
 685         opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
 686
 687         if ( !l_codec ){
 688                 fprintf(stderr, "[ERROR] Input parameters of the setup_decoder function are incorrect.\n");
 689                 return OPJ_FALSE;
 690         }
 691
 692         l_codec->m_codec_data.m_decompression.opj_set_decoded_resolution_factor(l_codec->m_codec,
 693                                                                                                                                                         res_factor,
 694                                                                                                                                                         &(l_codec->m_event_mgr) );
 695         return OPJ_TRUE;
 696 }
 697
 698 /* ---------------------------------------------------------------------- */
 699 /* COMPRESSION FUNCTIONS*/
 700
 701 opj_codec_t* OPJ_CALLCONV opj_create_compress(OPJ_CODEC_FORMAT p_format)
 702 {
 703         opj_codec_private_t *l_codec = 00;
 704
 705         l_codec = (opj_codec_private_t*)opj_calloc(1, sizeof(opj_codec_private_t));
 706         if (!l_codec) {
 707                 return 00;
 708         }
 709         memset(l_codec, 0, sizeof(opj_codec_private_t));
 710
 711         l_codec->is_decompressor = 0;
 712
 713         switch(p_format) {
 714                 case CODEC_J2K:
 715                         l_codec->m_codec_data.m_compression.opj_encode = (opj_bool (*) (void *,
 716                                                                                                                                                         struct opj_stream_private *,
 717                                                                                                                                                         struct opj_event_mgr * )) j2k_encode_v2;
 718
 719                         l_codec->m_codec_data.m_compression.opj_end_compress = (opj_bool (*) (  void *,
 720                                                                                                                                                                         struct opj_stream_private *,
 721                                                                                                                                                                         struct opj_event_mgr *)) j2k_end_compress;
 722
 723                         l_codec->m_codec_data.m_compression.opj_start_compress = (opj_bool (*) (void *,
 724                                                                                                                                                                         struct opj_stream_private *,
 725                                                                                                                                                                         struct opj_image * ,
 726                                                                                                                                                                         struct opj_event_mgr *)) j2k_start_compress;
 727
 728                         l_codec->m_codec_data.m_compression.opj_write_tile = (opj_bool (*) (void *,
 729                                                                                                                                                                 OPJ_UINT32,
 730                                                                                                                                                                 OPJ_BYTE*,
 731                                                                                                                                                                 OPJ_UINT32,
 732                                                                                                                                                                 struct opj_stream_private *,
 733                                                                                                                                                                 struct opj_event_mgr *) ) j2k_write_tile;
 734
 735                         l_codec->m_codec_data.m_compression.opj_destroy = (void (*) (void *)) j2k_destroy;
 736
 737                         l_codec->m_codec_data.m_compression.opj_setup_encoder = (void (*) (     void *,
 738                                                                                                                                                                 opj_cparameters_t *,
 739                                                                                                                                                                 struct opj_image *,
 740                                                                                                                                                                 struct opj_event_mgr * )) j2k_setup_encoder_v2;
 741
 742                         l_codec->m_codec = j2k_create_compress_v2();
 743                         if (! l_codec->m_codec) {
 744                                 opj_free(l_codec);
 745                                 return 00;
 746                         }
 747
 748                         break;
 749
 750                 case CODEC_JP2:
 751                         /* get a JP2 decoder handle */
 752                         l_codec->m_codec_data.m_compression.opj_encode = (opj_bool (*) (void *,
 753                                                                                                                                                         struct opj_stream_private *,
 754                                                                                                                                                         struct opj_event_mgr * )) opj_jp2_encode_v2;
 755
 756                         l_codec->m_codec_data.m_compression.opj_end_compress = (opj_bool (*) (  void *,
 757                                                                                                                                                                         struct opj_stream_private *,
 758                                                                                                                                                                         struct opj_event_mgr *)) jp2_end_compress;
 759
 760                         l_codec->m_codec_data.m_compression.opj_start_compress = (opj_bool (*) (void *,
 761                                                                                                                                                                         struct opj_stream_private *,
 762                                                                                                                                                                         struct opj_image * ,
 763                                                                                                                                                                         struct opj_event_mgr *))  jp2_start_compress;
 764
 765                         l_codec->m_codec_data.m_compression.opj_write_tile = (opj_bool (*) (void *,
 766                                                                                                                                                                 OPJ_UINT32,
 767                                                                                                                                                                 OPJ_BYTE*,
 768                                                                                                                                                                 OPJ_UINT32,
 769                                                                                                                                                                 struct opj_stream_private *,
 770                                                                                                                                                                 struct opj_event_mgr *)) jp2_write_tile;
 771
 772                         l_codec->m_codec_data.m_compression.opj_destroy = (void (*) (void *)) jp2_destroy;
 773
 774                         l_codec->m_codec_data.m_compression.opj_setup_encoder = (void (*) (     void *,
 775                                                                                                                                                                 opj_cparameters_t *,
 776                                                                                                                                                                 struct opj_image *,
 777                                                                                                                                                                 struct opj_event_mgr * )) jp2_setup_encoder;
 778
 779                         l_codec->m_codec = jp2_create(OPJ_FALSE);
 780                         if (! l_codec->m_codec) {
 781                                 opj_free(l_codec);
 782                                 return 00;
 783                         }
 784
 785                         break;
 786
 787                 case CODEC_UNKNOWN:
 788                 case CODEC_JPT:
 789                 default:
 790                         opj_free(l_codec);
 791                         return 00;
 792         }
 793
 794         set_default_event_handler(&(l_codec->m_event_mgr));
 795         return (opj_codec_t*) l_codec;
 796 }
 797
 798 void OPJ_CALLCONV opj_set_default_encoder_parameters(opj_cparameters_t *parameters) {
 799         if(parameters) {
 800                 memset(parameters, 0, sizeof(opj_cparameters_t));
 801                 /* default coding parameters */
 802                 parameters->cp_cinema = OFF;
 803                 parameters->max_comp_size = 0;
 804                 parameters->numresolution = 6;
 805                 parameters->cp_rsiz = STD_RSIZ;
 806                 parameters->cblockw_init = 64;
 807                 parameters->cblockh_init = 64;
 808                 parameters->prog_order = LRCP;
 809                 parameters->roi_compno = -1;            /* no ROI */
 810                 parameters->subsampling_dx = 1;
 811                 parameters->subsampling_dy = 1;
 812                 parameters->tp_on = 0;
 813                 parameters->decod_format = -1;
 814                 parameters->cod_format = -1;
 815                 parameters->tcp_rates[0] = 0;
 816                 parameters->tcp_numlayers = 0;
 817                 parameters->cp_disto_alloc = 0;
 818                 parameters->cp_fixed_alloc = 0;
 819                 parameters->cp_fixed_quality = 0;
 820                 parameters->jpip_on = OPJ_FALSE;
 821 /* UniPG>> */
 822 #ifdef USE_JPWL
 823                 parameters->jpwl_epc_on = OPJ_FALSE;
 824                 parameters->jpwl_hprot_MH = -1; /* -1 means unassigned */
 825                 {
 826                         int i;
 827                         for (i = 0; i < JPWL_MAX_NO_TILESPECS; i++) {
 828                                 parameters->jpwl_hprot_TPH_tileno[i] = -1; /* unassigned */
 829                                 parameters->jpwl_hprot_TPH[i] = 0; /* absent */
 830                         }
 831                 };
 832                 {
 833                         int i;
 834                         for (i = 0; i < JPWL_MAX_NO_PACKSPECS; i++) {
 835                                 parameters->jpwl_pprot_tileno[i] = -1; /* unassigned */
 836                                 parameters->jpwl_pprot_packno[i] = -1; /* unassigned */
 837                                 parameters->jpwl_pprot[i] = 0; /* absent */
 838                         }
 839                 };
 840                 parameters->jpwl_sens_size = 0; /* 0 means no ESD */
 841                 parameters->jpwl_sens_addr = 0; /* 0 means auto */
 842                 parameters->jpwl_sens_range = 0; /* 0 means packet */
 843                 parameters->jpwl_sens_MH = -1; /* -1 means unassigned */
 844                 {
 845                         int i;
 846                         for (i = 0; i < JPWL_MAX_NO_TILESPECS; i++) {
 847                                 parameters->jpwl_sens_TPH_tileno[i] = -1; /* unassigned */
 848                                 parameters->jpwl_sens_TPH[i] = -1; /* absent */
 849                         }
 850                 };
 851 #endif /* USE_JPWL */
 852 /* <<UniPG */
 853         }
 854 }
 855
 856 opj_bool OPJ_CALLCONV opj_setup_encoder(opj_codec_t *p_codec,
 857                                                                                 opj_cparameters_t *parameters,
 858                                                                                 opj_image_t *p_image)
 859 {
 860         if (p_codec && parameters && p_image) {
 861                 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
 862
 863                 if (! l_codec->is_decompressor) {
 864                         l_codec->m_codec_data.m_compression.opj_setup_encoder(  l_codec->m_codec,
 865                                                                                                                                         parameters,
 866                                                                                                                                         p_image,
 867                                                                                                                                         &(l_codec->m_event_mgr) );
 868                         return OPJ_TRUE;
 869                 }
 870         }
 871
 872         return OPJ_FALSE;
 873 }
 874
 875 opj_bool OPJ_CALLCONV opj_start_compress (      opj_codec_t *p_codec,
 876                                                                                         opj_image_t * p_image,
 877                                                                                         opj_stream_t *p_stream)
 878 {
 879         if (p_codec && p_stream) {
 880                 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
 881                 opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
 882
 883                 if (! l_codec->is_decompressor) {
 884                         return l_codec->m_codec_data.m_compression.opj_start_compress(  l_codec->m_codec,
 885                                                                                                                                                         l_stream,
 886                                                                                                                                                         p_image,
 887                                                                                                                                                         &(l_codec->m_event_mgr));
 888                 }
 889         }
 890
 891         return OPJ_FALSE;
 892 }
 893
 894 opj_bool OPJ_CALLCONV opj_encode(opj_codec_t *p_info, opj_stream_t *p_stream)
 895 {
 896         if (p_info && p_stream) {
 897                 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_info;
 898                 opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
 899
 900                 if (! l_codec->is_decompressor) {
 901                         l_codec->m_codec_data.m_compression.opj_encode( l_codec->m_codec,
 902                                                                                                                         l_stream,
 903                                                                                                                         &(l_codec->m_event_mgr));
 904                         return OPJ_TRUE;
 905                 }
 906         }
 907
 908         return OPJ_FALSE;
 909
 910 }
 911
 912 opj_bool OPJ_CALLCONV opj_end_compress (opj_codec_t *p_codec,
 913                                                                                 opj_stream_t *p_stream)
 914 {
 915         if (p_codec && p_stream) {
 916                 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
 917                 opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
 918
 919                 if (! l_codec->is_decompressor) {
 920                         return l_codec->m_codec_data.m_compression.opj_end_compress(l_codec->m_codec,
 921                                                                                                                                                 l_stream,
 922                                                                                                                                                 &(l_codec->m_event_mgr));
 923                 }
 924         }
 925         return OPJ_FALSE;
 926
 927 }
 928
 929 /*
 930  *
 931  *
 932  */
 933 opj_bool OPJ_CALLCONV opj_end_decompress (      opj_codec_t *p_codec,
 934                                                                                         opj_stream_t *p_stream)
 935 {
 936         if (p_codec && p_stream) {
 937                 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
 938                 opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
 939
 940                 if (! l_codec->is_decompressor) {
 941                         return OPJ_FALSE;
 942                 }
 943
 944                 return l_codec->m_codec_data.m_decompression.opj_end_decompress(l_codec->m_codec,
 945                                                                                                                                                 l_stream,
 946                                                                                                                                                 &(l_codec->m_event_mgr) );
 947         }
 948
 949         return OPJ_FALSE;
 950 }
 951
 952
 953 opj_bool OPJ_CALLCONV opj_set_MCT(opj_cparameters_t *parameters,OPJ_FLOAT32 * pEncodingMatrix,OPJ_INT32 * p_dc_shift,OPJ_UINT32 pNbComp)
 954 {
 955         OPJ_UINT32 l_matrix_size = pNbComp * pNbComp * sizeof(OPJ_FLOAT32);
 956         OPJ_UINT32 l_dc_shift_size = pNbComp * sizeof(OPJ_INT32);
 957         OPJ_UINT32 l_mct_total_size = l_matrix_size + l_dc_shift_size;
 958
 959         /* add MCT capability */
 960         int rsiz = (int)parameters->cp_rsiz | (int)MCT;
 961         parameters->cp_rsiz = (OPJ_RSIZ_CAPABILITIES)rsiz;
 962         parameters->irreversible = 1;
 963
 964         /* use array based MCT */
 965         parameters->tcp_mct = 2;
 966         parameters->mct_data = opj_malloc(l_mct_total_size);
 967         if (! parameters->mct_data) {
 968                 return OPJ_FALSE;
 969         }
 970
 971         memcpy(parameters->mct_data,pEncodingMatrix,l_matrix_size);
 972         memcpy(((OPJ_BYTE *) parameters->mct_data) +  l_matrix_size,p_dc_shift,l_dc_shift_size);
 973
 974         return OPJ_TRUE;
 975 }
 976
 977 /**
 978  * Writes a tile with the given data.
 979  *
 980  * @param       p_compressor            the jpeg2000 codec.
 981  * @param       p_tile_index            the index of the tile to write. At the moment, the tiles must be written from 0 to n-1 in sequence.
 982  * @param       p_data                          pointer to the data to write. Data is arranged in sequence, data_comp0, then data_comp1, then ... NO INTERLEAVING should be set.
 983  * @param       p_data_size                     this value os used to make sure the data being written is correct. The size must be equal to the sum for each component of tile_width * tile_height * component_size. component_size can be 1,2 or 4 bytes,
 984  *                                                              depending on the precision of the given component.
 985  * @param       p_stream                        the stream to write data to.
 986  */
 987 opj_bool OPJ_CALLCONV opj_write_tile (  opj_codec_t *p_codec,
 988                                                                                 OPJ_UINT32 p_tile_index,
 989                                                                                 OPJ_BYTE * p_data,
 990                                                                                 OPJ_UINT32 p_data_size,
 991                                                                                 opj_stream_t *p_stream )
 992 {
 993         if (p_codec && p_stream && p_data) {
 994                 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
 995                 opj_stream_private_t * l_stream = (opj_stream_private_t *) p_stream;
 996
 997                 if (l_codec->is_decompressor) {
 998                         return OPJ_FALSE;
 999                 }
1000
1001                 return l_codec->m_codec_data.m_compression.opj_write_tile(      l_codec->m_codec,
1002                                                                                                                                         p_tile_index,
1003                                                                                                                                         p_data,
1004                                                                                                                                         p_data_size,
1005                                                                                                                                         l_stream,
1006                                                                                                                                         &(l_codec->m_event_mgr) );
1007         }
1008
1009         return OPJ_FALSE;
1010 }
1011
1012
1013 /* DEPRECATED */
1014 void OPJ_CALLCONV opj_destroy_cstr_info(opj_codestream_info_t *cstr_info) {
1015         if (cstr_info) {
1016                 int tileno;
1017                 for (tileno = 0; tileno < cstr_info->tw * cstr_info->th; tileno++) {
1018                         opj_tile_info_t *tile_info = &cstr_info->tile[tileno];
1019                         opj_free(tile_info->thresh);
1020                         opj_free(tile_info->packet);
1021                         opj_free(tile_info->tp);
1022                         opj_free(tile_info->marker);
1023                 }
1024                 opj_free(cstr_info->tile);
1025                 opj_free(cstr_info->marker);
1026                 opj_free(cstr_info->numdecompos);
1027         }
1028 }
1029
1030
1031
1032
1033
1034 void OPJ_CALLCONV opj_destroy_codec(opj_codec_t *p_codec)
1035 {
1036         if (p_codec) {
1037                 opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
1038
1039                 if (l_codec->is_decompressor) {
1040                         l_codec->m_codec_data.m_decompression.opj_destroy(l_codec->m_codec);
1041                 }
1042                 else {
1043                         l_codec->m_codec_data.m_compression.opj_destroy(l_codec->m_codec);
1044                 }
1045
1046                 l_codec->m_codec = 00;
1047                 opj_free(l_codec);
1048         }
1049 }
1050
1051
1052
1053 /*
1054  *
1055  *
1056  */
1057 void OPJ_CALLCONV opj_dump_codec(       opj_codec_t *p_codec,
1058                                                                         OPJ_INT32 info_flag,
1059                                                                         FILE* output_stream)
1060 {
1061         if (p_codec) {
1062                 opj_codec_private_t* l_codec = (opj_codec_private_t*) p_codec;
1063
1064                 l_codec->opj_dump_codec(l_codec->m_codec, info_flag, output_stream);
1065                 return;
1066         }
1067
1068         fprintf(stderr, "[ERROR] Input parameter of the dump_codec function are incorrect.\n");
1069         return;
1070 }
1071
1072 /*
1073  *
1074  *
1075  */
1076 opj_codestream_info_v2_t* OPJ_CALLCONV opj_get_cstr_info(opj_codec_t *p_codec)
1077 {
1078         if (p_codec) {
1079                 opj_codec_private_t* l_codec = (opj_codec_private_t*) p_codec;
1080
1081                 return l_codec->opj_get_codec_info(l_codec->m_codec);
1082         }
1083
1084         return NULL;
1085 }
1086
1087 /*
1088  *
1089  *
1090  */
1091 void OPJ_CALLCONV opj_destroy_cstr_info_v2(opj_codestream_info_v2_t **cstr_info) {
1092         if (cstr_info) {
1093
1094                 if ((*cstr_info)->m_default_tile_info.tccp_info){
1095                         opj_free((*cstr_info)->m_default_tile_info.tccp_info);
1096                 }
1097
1098                 if ((*cstr_info)->tile_info){
1099                         /* FIXME not used for the moment*/
1100                 }
1101
1102                 opj_free((*cstr_info));
1103                 (*cstr_info) = NULL;
1104         }
1105 }
1106
1107 /*
1108  *
1109  *
1110  */
1111 opj_codestream_index_t * OPJ_CALLCONV opj_get_cstr_index(opj_codec_t *p_codec)
1112 {
1113         if (p_codec) {
1114                 opj_codec_private_t* l_codec = (opj_codec_private_t*) p_codec;
1115
1116                 return l_codec->opj_get_codec_index(l_codec->m_codec);
1117         }
1118
1119         return NULL;
1120 }
1121
1122 /*
1123  *
1124  *
1125  */
1126 void OPJ_CALLCONV opj_destroy_cstr_index(opj_codestream_index_t **p_cstr_index)
1127 {
1128         if (*p_cstr_index){
1129                 j2k_destroy_cstr_index(*p_cstr_index);
1130                 (*p_cstr_index) = NULL;
1131         }
1132 }
1133
1134
1135
1136
1137
1138 /* ---------------------------------------------------------------------- */
1139 /**
1140  * Helper function.
1141  * Sets the stream to be a file stream. The FILE must have been open previously.
1142  * @param               p_stream        the stream to modify
1143  * @param               p_file          handler to an already open file.
1144 */
1145 opj_stream_t* OPJ_CALLCONV opj_stream_create_default_file_stream (FILE * p_file, opj_bool p_is_read_stream)
1146 {
1147         return opj_stream_create_file_stream(p_file,J2K_STREAM_CHUNK_SIZE,p_is_read_stream);
1148 }
1149
1150 opj_stream_t* OPJ_CALLCONV opj_stream_create_file_stream (      FILE * p_file,
1151                                                                                                                         OPJ_SIZE_T p_size,
1152                                                                                                                         opj_bool p_is_read_stream)
1153 {
1154         opj_stream_t* l_stream = 00;
1155
1156         if (! p_file) {
1157                 return NULL;
1158         }
1159
1160         l_stream = opj_stream_create(p_size,p_is_read_stream);
1161         if (! l_stream) {
1162                 return NULL;
1163         }
1164
1165         opj_stream_set_user_data(l_stream, p_file);
1166         opj_stream_set_user_data_length(l_stream, opj_get_data_length_from_file(p_file));
1167         opj_stream_set_read_function(l_stream, (opj_stream_read_fn) opj_read_from_file);
1168         opj_stream_set_write_function(l_stream, (opj_stream_write_fn) opj_write_from_file);
1169         opj_stream_set_skip_function(l_stream, (opj_stream_skip_fn) opj_skip_from_file);
1170         opj_stream_set_seek_function(l_stream, (opj_stream_seek_fn) opj_seek_from_file);
1171
1172         return l_stream;
1173 }