wrapping/java/openjp2/JavaOpenJPEGDecoder.c

   1 /*\r
   2  * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium\r
   3  * Copyright (c) 2002-2007, Professor Benoit Macq\r
   4  * Copyright (c) 2001-2003, David Janssens\r
   5  * Copyright (c) 2002-2003, Yannick Verschueren\r
   6  * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe\r
   7  * Copyright (c) 2005, Herve Drolon, FreeImage Team\r
   8  * Copyright (c) 2006-2007, Parvatha Elangovan\r
   9  * Copyright (c) 2007, Patrick Piscaglia (Telemis)\r
  10  * All rights reserved.\r
  11  *\r
  12  * Redistribution and use in source and binary forms, with or without\r
  13  * modification, are permitted provided that the following conditions\r
  14  * are met:\r
  15  * 1. Redistributions of source code must retain the above copyright\r
  16  *    notice, this list of conditions and the following disclaimer.\r
  17  * 2. Redistributions in binary form must reproduce the above copyright\r
  18  *    notice, this list of conditions and the following disclaimer in the\r
  19  *    documentation and/or other materials provided with the distribution.\r
  20  *\r
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'\r
  22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE\r
  25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r
  26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r
  27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r
  28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r
  29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r
  30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r
  31  * POSSIBILITY OF SUCH DAMAGE.\r
  32  */\r
  33 #include <stdio.h>\r
  34 #include <string.h>\r
  35 #include <stdlib.h>\r
  36 #include <jni.h>\r
  37 #include <math.h>\r
  38 \r
  39 #include "openjpeg.h"\r
  40 #include "opj_includes.h"\r
  41 #include "opj_getopt.h"\r
  42 #include "convert.h"\r
  43 #include "dirent.h"\r
  44 #include "org_openJpeg_OpenJPEGJavaDecoder.h"\r
  45 \r
  46 #ifndef _WIN32\r
  47 #define stricmp strcasecmp\r
  48 #define strnicmp strncasecmp\r
  49 #endif\r
  50 \r
  51 #include "format_defs.h"\r
  52 \r
  53 typedef struct callback_variables {\r
  54         JNIEnv *env;\r
  55         /** 'jclass' object used to call a Java method from the C */\r
  56         jobject *jobj;\r
  57         /** 'jclass' object used to call a Java method from the C */\r
  58         jmethodID message_mid;\r
  59         jmethodID error_mid;\r
  60 } callback_variables_t;\r
  61 \r
  62 typedef struct dircnt{\r
  63         /** Buffer for holding images read from Directory*/\r
  64         char *filename_buf;\r
  65         /** Pointer to the buffer*/\r
  66         char **filename;\r
  67 }dircnt_t;\r
  68 \r
  69 \r
  70 typedef struct img_folder{\r
  71         /** The directory path of the folder containing input images*/\r
  72         char *imgdirpath;\r
  73         /** Output format*/\r
  74         char *out_format;\r
  75         /** Enable option*/\r
  76         char set_imgdir;\r
  77         /** Enable Cod Format for output*/\r
  78         char set_out_format;\r
  79 \r
  80 }img_fol_t;\r
  81 \r
  82 \r
  83 void decode_help_display() {\r
  84         fprintf(stdout,"HELP\n----\n\n");\r
  85         fprintf(stdout,"- the -h option displays this help information on screen\n\n");\r
  86 \r
  87 /* UniPG>> */\r
  88         fprintf(stdout,"List of parameters for the JPEG 2000 "\r
  89 #ifdef USE_JPWL\r
  90                 "+ JPWL "\r
  91 #endif /* USE_JPWL */\r
  92                 "decoder:\n");\r
  93 /* <<UniPG */\r
  94         fprintf(stdout,"\n");\r
  95         fprintf(stdout,"\n");\r
  96         fprintf(stdout,"  -ImgDir \n");\r
  97         fprintf(stdout,"        Image file Directory path \n");\r
  98         fprintf(stdout,"  -OutFor \n");\r
  99         fprintf(stdout,"    REQUIRED only if -ImgDir is used\n");\r
 100         fprintf(stdout,"          Need to specify only format without filename <BMP>  \n");\r
 101         fprintf(stdout,"    Currently accepts PGM, PPM, PNM, PGX, BMP format\n");\r
 102         fprintf(stdout,"  -i <compressed file>\n");\r
 103         fprintf(stdout,"    REQUIRED only if an Input image directory not specified\n");\r
 104         fprintf(stdout,"    Currently accepts J2K-files, JP2-files and JPT-files. The file type\n");\r
 105         fprintf(stdout,"    is identified based on its suffix.\n");\r
 106         fprintf(stdout,"  -o <decompressed file>\n");\r
 107         fprintf(stdout,"    REQUIRED\n");\r
 108         fprintf(stdout,"    Currently accepts PGM-files, PPM-files, PNM-files, PGX-files and\n");\r
 109         fprintf(stdout,"    BMP-files. Binary data is written to the file (not ascii). If a PGX\n");\r
 110         fprintf(stdout,"    filename is given, there will be as many output files as there are\n");\r
 111         fprintf(stdout,"    components: an indice starting from 0 will then be appended to the\n");\r
 112         fprintf(stdout,"    output filename, just before the \"pgx\" extension. If a PGM filename\n");\r
 113         fprintf(stdout,"    is given and there are more than one component, only the first component\n");\r
 114         fprintf(stdout,"    will be written to the file.\n");\r
 115         fprintf(stdout,"  -r <reduce factor>\n");\r
 116         fprintf(stdout,"    Set the number of highest resolution levels to be discarded. The\n");\r
 117         fprintf(stdout,"    image resolution is effectively divided by 2 to the power of the\n");\r
 118         fprintf(stdout,"    number of discarded levels. The reduce factor is limited by the\n");\r
 119         fprintf(stdout,"    smallest total number of decomposition levels among tiles.\n");\r
 120         fprintf(stdout,"  -l <number of quality layers to decode>\n");\r
 121         fprintf(stdout,"    Set the maximum number of quality layers to decode. If there are\n");\r
 122         fprintf(stdout,"    less quality layers than the specified number, all the quality layers\n");\r
 123         fprintf(stdout,"    are decoded.\n");\r
 124 /* UniPG>> */\r
 125 #ifdef USE_JPWL\r
 126         fprintf(stdout,"  -W <options>\n");\r
 127         fprintf(stdout,"    Activates the JPWL correction capability, if the codestream complies.\n");\r
 128         fprintf(stdout,"    Options can be a comma separated list of <param=val> tokens:\n");\r
 129         fprintf(stdout,"    c, c=numcomps\n");\r
 130         fprintf(stdout,"       numcomps is the number of expected components in the codestream\n");\r
 131         fprintf(stdout,"       (search of first EPB rely upon this, default is %d)\n", JPWL_EXPECTED_COMPONENTS);\r
 132 #endif /* USE_JPWL */\r
 133 /* <<UniPG */\r
 134         fprintf(stdout,"\n");\r
 135 }\r
 136 \r
 137 /* -------------------------------------------------------------------------- */\r
 138 \r
 139 int get_num_images(char *imgdirpath){\r
 140         DIR *dir;\r
 141         struct dirent* content; \r
 142         int num_images = 0;\r
 143 \r
 144         /*Reading the input images from given input directory*/\r
 145 \r
 146         dir= opendir(imgdirpath);\r
 147         if(!dir){\r
 148                 fprintf(stderr,"Could not open Folder %s\n",imgdirpath);\r
 149                 return 0;\r
 150         }\r
 151         \r
 152         while((content=readdir(dir))!=NULL){\r
 153                 if(strcmp(".",content->d_name)==0 || strcmp("..",content->d_name)==0 )\r
 154                         continue;\r
 155                 num_images++;\r
 156         }\r
 157         return num_images;\r
 158 }\r
 159 \r
 160 int load_images(dircnt_t *dirptr, char *imgdirpath){\r
 161         DIR *dir;\r
 162         struct dirent* content; \r
 163         int i = 0;\r
 164 \r
 165         /*Reading the input images from given input directory*/\r
 166 \r
 167         dir= opendir(imgdirpath);\r
 168         if(!dir){\r
 169                 fprintf(stderr,"Could not open Folder %s\n",imgdirpath);\r
 170                 return 1;\r
 171         }else   {\r
 172                 fprintf(stderr,"Folder opened successfully\n");\r
 173         }\r
 174         \r
 175         while((content=readdir(dir))!=NULL){\r
 176                 if(strcmp(".",content->d_name)==0 || strcmp("..",content->d_name)==0 )\r
 177                         continue;\r
 178 \r
 179                 strcpy(dirptr->filename[i],content->d_name);\r
 180                 i++;\r
 181         }\r
 182         return 0;       \r
 183 }\r
 184 \r
 185 int get_file_format(char *filename) {\r
 186         unsigned int i;\r
 187         static const char *extension[] = {"pgx", "pnm", "pgm", "ppm", "bmp","tif", "raw", "tga", "j2k", "jp2", "jpt", "j2c" };\r
 188         static const int format[] = { PGX_DFMT, PXM_DFMT, PXM_DFMT, PXM_DFMT, BMP_DFMT, TIF_DFMT, RAW_DFMT, TGA_DFMT, J2K_CFMT, JP2_CFMT, JPT_CFMT, J2K_CFMT };\r
 189         char * ext = strrchr(filename, '.');\r
 190         if (ext == NULL)\r
 191                 return -1;\r
 192         ext++;\r
 193         if(ext) {\r
 194                 for(i = 0; i < sizeof(format)/sizeof(*format); i++) {\r
 195                         if(strnicmp(ext, extension[i], 3) == 0) {\r
 196                                 return format[i];\r
 197                         }\r
 198                 }\r
 199         }\r
 200 \r
 201         return -1;\r
 202 }\r
 203 \r
 204 \r
 205 /* -------------------------------------------------------------------------- */\r
 206 \r
 207 int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters,img_fol_t *img_fol) {\r
 208         /* parse the command line */\r
 209         int totlen;\r
 210         opj_option_t long_option[]={\r
 211                 {"ImgDir",REQ_ARG, NULL ,'y'},\r
 212                 {"OutFor",REQ_ARG, NULL ,'O'},\r
 213         };\r
 214 \r
 215 /* UniPG>> */\r
 216         const char optlist[] = "i:o:r:l:hx:"\r
 217 \r
 218 #ifdef USE_JPWL\r
 219                                         "W:"\r
 220 #endif /* USE_JPWL */\r
 221                                         ;\r
 222         /*for (i=0; i<argc; i++) {\r
 223                 printf("[%s]",argv[i]);\r
 224         }\r
 225         printf("\n");*/\r
 226 \r
 227 /* <<UniPG */\r
 228         totlen=sizeof(long_option);\r
 229         img_fol->set_out_format = 0;\r
 230         reset_options_reading();\r
 231 \r
 232         while (1) {\r
 233                 int c = opj_getopt_long(argc, argv,optlist,long_option,totlen);\r
 234                 if (c == -1)\r
 235                         break;\r
 236                 switch (c) {\r
 237                         case 'i':                       /* input file */\r
 238                         {\r
 239                                 char *infile = opj_optarg;\r
 240                                 parameters->decod_format = get_file_format(infile);\r
 241                                 switch(parameters->decod_format) {\r
 242                                         case J2K_CFMT:\r
 243                                         case JP2_CFMT:\r
 244                                         case JPT_CFMT:\r
 245                                                 break;\r
 246                                         default:\r
 247                                                 fprintf(stderr, \r
 248                                                         "!! Unrecognized format for infile : %s [accept only *.j2k, *.jp2, *.jpc or *.jpt] !!\n\n", \r
 249                                                         infile);\r
 250                                                 return 1;\r
 251                                 }\r
 252                                 strncpy(parameters->infile, infile, sizeof(parameters->infile)-1);\r
 253                         }\r
 254                         break;\r
 255                                 \r
 256                                 /* ----------------------------------------------------- */\r
 257 \r
 258                         case 'o':                       /* output file */\r
 259                         {\r
 260                                 char *outfile = opj_optarg;\r
 261                                 parameters->cod_format = get_file_format(outfile);\r
 262                                 switch(parameters->cod_format) {\r
 263                                         case PGX_DFMT:\r
 264                                         case PXM_DFMT:\r
 265                                         case BMP_DFMT:\r
 266                                         case TIF_DFMT:\r
 267                                         case RAW_DFMT:\r
 268                                         case TGA_DFMT:\r
 269                                                 break;\r
 270                                         default:\r
 271                                                 fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga]!! \n", outfile);\r
 272                                                 return 1;\r
 273                                 }\r
 274                                 strncpy(parameters->outfile, outfile, sizeof(parameters->outfile)-1);\r
 275                         }\r
 276                         break;\r
 277                         \r
 278                                 /* ----------------------------------------------------- */\r
 279 \r
 280                         case 'O':                       /* output format */\r
 281                         {\r
 282                                 char outformat[50];\r
 283                                 char *of = opj_optarg;\r
 284                                 sprintf(outformat,".%s",of);\r
 285                                 img_fol->set_out_format = 1;\r
 286                                 parameters->cod_format = get_file_format(outformat);\r
 287                                 switch(parameters->cod_format) {\r
 288                                         case PGX_DFMT:\r
 289                                                 img_fol->out_format = "pgx";\r
 290                                                 break;\r
 291                                         case PXM_DFMT:\r
 292                                                 img_fol->out_format = "ppm";\r
 293                                                 break;\r
 294                                         case BMP_DFMT:\r
 295                                                 img_fol->out_format = "bmp";\r
 296                                                 break;\r
 297                                         case TIF_DFMT:\r
 298                                                 img_fol->out_format = "tif";\r
 299                                                 break;\r
 300                                         case RAW_DFMT:\r
 301                                                 img_fol->out_format = "raw";\r
 302                                                 break;\r
 303                                         case TGA_DFMT:\r
 304                                                 img_fol->out_format = "raw";\r
 305                                                 break;\r
 306                                         default:\r
 307                                                 fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga]!! \n", outformat);\r
 308                                                 return 1;\r
 309                                                 break;\r
 310                                 }\r
 311                         }\r
 312                         break;\r
 313 \r
 314                                 /* ----------------------------------------------------- */\r
 315 \r
 316 \r
 317                         case 'r':               /* reduce option */\r
 318                         {\r
 319                                 sscanf(opj_optarg, "%d", &parameters->cp_reduce);\r
 320                         }\r
 321                         break;\r
 322                         \r
 323                                 /* ----------------------------------------------------- */\r
 324       \r
 325 \r
 326                         case 'l':               /* layering option */\r
 327                         {\r
 328                                 sscanf(opj_optarg, "%d", &parameters->cp_layer);\r
 329                         }\r
 330                         break;\r
 331                         \r
 332                                 /* ----------------------------------------------------- */\r
 333 \r
 334                         case 'h':                       /* display an help description */\r
 335                                 decode_help_display();\r
 336                                 return 1;                               \r
 337 \r
 338                                 /* ------------------------------------------------------ */\r
 339 \r
 340                         case 'y':                       /* Image Directory path */\r
 341                                 {\r
 342                                         img_fol->imgdirpath = (char*)opj_malloc(strlen(opj_optarg) + 1);\r
 343                                         strcpy(img_fol->imgdirpath,opj_optarg);\r
 344                                         img_fol->set_imgdir=1;\r
 345                                 }\r
 346                                 break;\r
 347                                 /* ----------------------------------------------------- */\r
 348 /* UniPG>> */\r
 349 #ifdef USE_JPWL\r
 350                         \r
 351                         case 'W':                       /* activate JPWL correction */\r
 352                         {\r
 353                                 char *token = NULL;\r
 354 \r
 355                                 token = strtok(opj_optarg, ",");\r
 356                                 while(token != NULL) {\r
 357 \r
 358                                         /* search expected number of components */\r
 359                                         if (*token == 'c') {\r
 360 \r
 361                                                 static int compno;\r
 362 \r
 363                                                 compno = JPWL_EXPECTED_COMPONENTS; /* predefined no. of components */\r
 364 \r
 365                                                 if(sscanf(token, "c=%d", &compno) == 1) {\r
 366                                                         /* Specified */\r
 367                                                         if ((compno < 1) || (compno > 256)) {\r
 368                                                                 fprintf(stderr, "ERROR -> invalid number of components c = %d\n", compno);\r
 369                                                                 return 1;\r
 370                                                         }\r
 371                                                         parameters->jpwl_exp_comps = compno;\r
 372 \r
 373                                                 } else if (!strcmp(token, "c")) {\r
 374                                                         /* default */\r
 375                                                         parameters->jpwl_exp_comps = compno; /* auto for default size */\r
 376 \r
 377                                                 } else {\r
 378                                                         fprintf(stderr, "ERROR -> invalid components specified = %s\n", token);\r
 379                                                         return 1;\r
 380                                                 };\r
 381                                         }\r
 382 \r
 383                                         /* search maximum number of tiles */\r
 384                                         if (*token == 't') {\r
 385 \r
 386                                                 static int tileno;\r
 387 \r
 388                                                 tileno = JPWL_MAXIMUM_TILES; /* maximum no. of tiles */\r
 389 \r
 390                                                 if(sscanf(token, "t=%d", &tileno) == 1) {\r
 391                                                         /* Specified */\r
 392                                                         if ((tileno < 1) || (tileno > JPWL_MAXIMUM_TILES)) {\r
 393                                                                 fprintf(stderr, "ERROR -> invalid number of tiles t = %d\n", tileno);\r
 394                                                                 return 1;\r
 395                                                         }\r
 396                                                         parameters->jpwl_max_tiles = tileno;\r
 397 \r
 398                                                 } else if (!strcmp(token, "t")) {\r
 399                                                         /* default */\r
 400                                                         parameters->jpwl_max_tiles = tileno; /* auto for default size */\r
 401 \r
 402                                                 } else {\r
 403                                                         fprintf(stderr, "ERROR -> invalid tiles specified = %s\n", token);\r
 404                                                         return 1;\r
 405                                                 };\r
 406                                         }\r
 407 \r
 408                                         /* next token or bust */\r
 409                                         token = strtok(NULL, ",");\r
 410                                 };\r
 411                                 parameters->jpwl_correct = true;\r
 412                                 fprintf(stdout, "JPWL correction capability activated\n");\r
 413                                 fprintf(stdout, "- expecting %d components\n", parameters->jpwl_exp_comps);\r
 414                         }\r
 415                         break;  \r
 416 #endif /* USE_JPWL */\r
 417 /* <<UniPG */            \r
 418 \r
 419                                 /* ----------------------------------------------------- */\r
 420                         \r
 421                         default:\r
 422                                 fprintf(stderr,"WARNING -> this option is not valid \"-%c %s\"\n",c, opj_optarg);\r
 423                                 break;\r
 424                 }\r
 425         }\r
 426 \r
 427         /* No check for possible errors before the -i and -o options are of course not mandatory*/\r
 428 \r
 429         return 0;\r
 430 }\r
 431 \r
 432 /* -------------------------------------------------------------------------- */\r
 433 \r
 434 /**\r
 435 error callback returning the message to Java andexpecting a callback_variables_t client object\r
 436 */\r
 437 void error_callback(const char *msg, void *client_data) {\r
 438         callback_variables_t* vars = (callback_variables_t*) client_data;\r
 439         JNIEnv *env = vars->env;\r
 440         jstring jbuffer;\r
 441 \r
 442         jbuffer = (*env)->NewStringUTF(env, msg);\r
 443         (*env)->ExceptionClear(env);\r
 444         (*env)->CallVoidMethod(env, *(vars->jobj), vars->error_mid, jbuffer);\r
 445 \r
 446         if ((*env)->ExceptionOccurred(env)) {\r
 447                 fprintf(stderr,"C: Exception during call back method\n");\r
 448                 (*env)->ExceptionDescribe(env);\r
 449                 (*env)->ExceptionClear(env);\r
 450         }\r
 451         (*env)->DeleteLocalRef(env, jbuffer);\r
 452 }\r
 453 /**\r
 454 warning callback returning the message to Java andexpecting a callback_variables_t client object\r
 455 */\r
 456 void warning_callback(const char *msg, void *client_data) {\r
 457         callback_variables_t* vars = (callback_variables_t*) client_data;\r
 458         JNIEnv *env = vars->env;\r
 459         jstring jbuffer;\r
 460 \r
 461         jbuffer = (*env)->NewStringUTF(env, msg);\r
 462         (*env)->ExceptionClear(env);\r
 463         (*env)->CallVoidMethod(env, *(vars->jobj), vars->message_mid, jbuffer);\r
 464         \r
 465         if ((*env)->ExceptionOccurred(env)) {\r
 466                 fprintf(stderr,"C: Exception during call back method\n");\r
 467                 (*env)->ExceptionDescribe(env);\r
 468                 (*env)->ExceptionClear(env);\r
 469         }\r
 470         (*env)->DeleteLocalRef(env, jbuffer);\r
 471 }\r
 472 /**\r
 473 information callback returning the message to Java andexpecting a callback_variables_t client object\r
 474 */\r
 475 void info_callback(const char *msg, void *client_data) {\r
 476         callback_variables_t* vars = (callback_variables_t*) client_data;\r
 477         JNIEnv *env = vars->env;\r
 478         jstring jbuffer;\r
 479 \r
 480         jbuffer = (*env)->NewStringUTF(env, msg);\r
 481         (*env)->ExceptionClear(env);\r
 482         (*env)->CallVoidMethod(env, *(vars->jobj), vars->message_mid, jbuffer);\r
 483 \r
 484         if ((*env)->ExceptionOccurred(env)) {\r
 485                 fprintf(stderr,"C: Exception during call back method\n");\r
 486                 (*env)->ExceptionDescribe(env);\r
 487                 (*env)->ExceptionClear(env);\r
 488         }\r
 489         (*env)->DeleteLocalRef(env, jbuffer);\r
 490 }\r
 491 \r
 492 \r
 493 /* --------------------------------------------------------------------------\r
 494    --------------------   MAIN METHOD, CALLED BY JAVA -----------------------*/\r
 495 JNIEXPORT jint JNICALL Java_org_openJpeg_OpenJPEGJavaDecoder_internalDecodeJ2KtoImage(JNIEnv *env, jobject obj, jobjectArray javaParameters) {\r
 496         int argc;               /* To simulate the command line parameters (taken from the javaParameters variable) and be able to re-use the */\r
 497         char **argv;    /*  'parse_cmdline_decoder' method taken from the j2k_to_image project */\r
 498         opj_dparameters_t parameters;   /* decompression parameters */\r
 499         img_fol_t img_fol;\r
 500         opj_event_mgr_t event_mgr;              /* event manager */\r
 501         opj_image_t *image = NULL;\r
 502         FILE *fsrc = NULL;\r
 503         unsigned char *src = NULL;\r
 504         int file_length;\r
 505         int num_images;\r
 506         int i,j,imageno;\r
 507         opj_dinfo_t* dinfo = NULL;      /* handle to a decompressor */\r
 508         opj_cio_t *cio = NULL;\r
 509         int w,h;\r
 510         long min_value, max_value;\r
 511         short tempS; unsigned char tempUC, tempUC1, tempUC2;\r
 512         /* ==> Access variables to the Java member variables*/\r
 513         jsize           arraySize;\r
 514         jclass          cls;\r
 515         jobject         object;\r
 516         jboolean        isCopy;\r
 517         jfieldID        fid;\r
 518         jbyteArray      jba;\r
 519         jshortArray jsa;\r
 520         jintArray       jia;\r
 521         jbyte           *jbBody, *ptrBBody;\r
 522         jshort          *jsBody, *ptrSBody;\r
 523         jint            *jiBody, *ptrIBody;\r
 524         callback_variables_t msgErrorCallback_vars;\r
 525         /* <=== access variable to Java member variables */\r
 526         int *ptr, *ptr1, *ptr2;                         /* <== To transfer the decoded image to Java*/\r
 527 \r
 528         /* configure the event callbacks */\r
 529         memset(&event_mgr, 0, sizeof(opj_event_mgr_t)); \r
 530         event_mgr.error_handler = error_callback;\r
 531         event_mgr.warning_handler = warning_callback;\r
 532         event_mgr.info_handler = info_callback;\r
 533 \r
 534         /* JNI reference to the calling class*/\r
 535         cls = (*env)->GetObjectClass(env, obj);\r
 536 \r
 537         /* Pointers to be able to call a Java method for all the info and error messages*/\r
 538         msgErrorCallback_vars.env = env;\r
 539         msgErrorCallback_vars.jobj = &obj;\r
 540         msgErrorCallback_vars.message_mid = (*env)->GetMethodID(env, cls, "logMessage", "(Ljava/lang/String;)V");\r
 541         msgErrorCallback_vars.error_mid = (*env)->GetMethodID(env, cls, "logError", "(Ljava/lang/String;)V");\r
 542 \r
 543         /* Get the String[] containing the parameters, and converts it into a char** to simulate command line arguments.*/\r
 544         arraySize = (*env)->GetArrayLength(env, javaParameters);\r
 545         argc = (int) arraySize +1;\r
 546         argv = opj_malloc(argc*sizeof(char*));\r
 547         argv[0] = "ProgramName.exe";    /* The program name: useless*/\r
 548         j=0;\r
 549         for (i=1; i<argc; i++) {\r
 550                 object = (*env)->GetObjectArrayElement(env, javaParameters, i-1);\r
 551                 argv[i] = (char*)(*env)->GetStringUTFChars(env, object, &isCopy);\r
 552         }\r
 553 \r
 554         /*printf("C: decoder params = ");\r
 555         for (i=0; i<argc; i++) {\r
 556                 printf("[%s]",argv[i]);\r
 557         }\r
 558         printf("\n");*/\r
 559 \r
 560         /* set decoding parameters to default values */\r
 561         opj_set_default_decoder_parameters(&parameters);\r
 562         parameters.decod_format = J2K_CFMT;\r
 563 \r
 564         /* parse input and get user encoding parameters */\r
 565         if(parse_cmdline_decoder(argc, argv, &parameters,&img_fol) == 1) {\r
 566                 /* Release the Java arguments array*/\r
 567                 for (i=1; i<argc; i++)\r
 568                         (*env)->ReleaseStringUTFChars(env, (*env)->GetObjectArrayElement(env, javaParameters, i-1), argv[i]);\r
 569                 return -1;\r
 570         }\r
 571         /* Release the Java arguments array*/\r
 572         for (i=1; i<argc; i++)\r
 573                 (*env)->ReleaseStringUTFChars(env, (*env)->GetObjectArrayElement(env, javaParameters, i-1), argv[i]);\r
 574 \r
 575         num_images=1;\r
 576 \r
 577         /* Get additional information from the Java object variables*/\r
 578         fid = (*env)->GetFieldID(env, cls,"skippedResolutions", "I");\r
 579         parameters.cp_reduce = (short) (*env)->GetIntField(env, obj, fid);\r
 580 \r
 581         /*Decoding image one by one*/\r
 582         for(imageno = 0; imageno < num_images ; imageno++)\r
 583         {\r
 584                 image = NULL;\r
 585                 fprintf(stderr,"\n");\r
 586 \r
 587                 /* read the input file and put it in memory into the 'src' object, if the -i option is given in JavaParameters.\r
 588                    Implemented for debug purpose. */\r
 589                 /* -------------------------------------------------------------- */\r
 590                 if (parameters.infile && parameters.infile[0]!='\0') {\r
 591                         /*printf("C: opening [%s]\n", parameters.infile);*/\r
 592                         fsrc = fopen(parameters.infile, "rb");\r
 593                         if (!fsrc) {\r
 594                                 fprintf(stderr, "ERROR -> failed to open %s for reading\n", parameters.infile);\r
 595                                 return 1;\r
 596                         }\r
 597                         fseek(fsrc, 0, SEEK_END);\r
 598                         file_length = ftell(fsrc);\r
 599                         fseek(fsrc, 0, SEEK_SET);\r
 600                         src = (unsigned char *) opj_malloc(file_length);\r
 601                         fread(src, 1, file_length, fsrc);\r
 602                         fclose(fsrc);\r
 603                         /*printf("C: %d bytes read from file\n",file_length);*/\r
 604                 } else {\r
 605                         /* Preparing the transfer of the codestream from Java to C*/\r
 606                         /*printf("C: before transfering codestream\n");*/\r
 607                         fid = (*env)->GetFieldID(env, cls,"compressedStream", "[B");\r
 608                         jba = (*env)->GetObjectField(env, obj, fid);\r
 609                         file_length = (*env)->GetArrayLength(env, jba);\r
 610                         jbBody = (*env)->GetByteArrayElements(env, jba, &isCopy);\r
 611                         src = (unsigned char*)jbBody;\r
 612                 }\r
 613 \r
 614                 /* decode the code-stream */\r
 615                 /* ---------------------- */\r
 616 \r
 617                 switch(parameters.decod_format) {\r
 618                 case J2K_CFMT:\r
 619                 {\r
 620                         /* JPEG-2000 codestream */\r
 621 \r
 622                         /* get a decoder handle */\r
 623                         dinfo = opj_create_decompress(CODEC_J2K);\r
 624 \r
 625                         /* catch events using our callbacks and give a local context */\r
 626                         opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, &msgErrorCallback_vars);\r
 627 \r
 628                         /* setup the decoder decoding parameters using user parameters */\r
 629                         opj_setup_decoder(dinfo, &parameters);\r
 630 \r
 631                         /* open a byte stream */\r
 632                         cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);\r
 633 \r
 634                         /* decode the stream and fill the image structure */\r
 635                         image = opj_decode(dinfo, cio);\r
 636                         if(!image) {\r
 637                                 fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");\r
 638                                 opj_destroy_decompress(dinfo);\r
 639                                 opj_cio_close(cio);\r
 640                                 return 1;\r
 641                         }\r
 642 \r
 643                         /* close the byte stream */\r
 644                         opj_cio_close(cio);\r
 645                 }\r
 646                 break;\r
 647 \r
 648                 case JP2_CFMT:\r
 649                 {\r
 650                         /* JPEG 2000 compressed image data */\r
 651 \r
 652                         /* get a decoder handle */\r
 653                         dinfo = opj_create_decompress(CODEC_JP2);\r
 654 \r
 655                         /* catch events using our callbacks and give a local context */\r
 656                         opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, &msgErrorCallback_vars);\r
 657 \r
 658                         /* setup the decoder decoding parameters using the current image and user parameters */\r
 659                         opj_setup_decoder(dinfo, &parameters);\r
 660 \r
 661                         /* open a byte stream */\r
 662                         cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);\r
 663 \r
 664                         /* decode the stream and fill the image structure */\r
 665                         image = opj_decode(dinfo, cio);\r
 666                         if(!image) {\r
 667                                 fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");\r
 668                                 opj_destroy_decompress(dinfo);\r
 669                                 opj_cio_close(cio);\r
 670                                 return 1;\r
 671                         }\r
 672 \r
 673                         /* close the byte stream */\r
 674                         opj_cio_close(cio);\r
 675 \r
 676                 }\r
 677                 break;\r
 678 \r
 679                 case JPT_CFMT:\r
 680                 {\r
 681                         /* JPEG 2000, JPIP */\r
 682 \r
 683                         /* get a decoder handle */\r
 684                         dinfo = opj_create_decompress(CODEC_JPT);\r
 685 \r
 686                         /* catch events using our callbacks and give a local context */\r
 687                         opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, &msgErrorCallback_vars);\r
 688 \r
 689                         /* setup the decoder decoding parameters using user parameters */\r
 690                         opj_setup_decoder(dinfo, &parameters);\r
 691 \r
 692                         /* open a byte stream */\r
 693                         cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);\r
 694 \r
 695                         /* decode the stream and fill the image structure */\r
 696                         image = opj_decode(dinfo, cio);\r
 697                         if(!image) {\r
 698                                 fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");\r
 699                                 opj_destroy_decompress(dinfo);\r
 700                                 opj_cio_close(cio);\r
 701                                 return 1;\r
 702                         }\r
 703 \r
 704                         /* close the byte stream */\r
 705                         opj_cio_close(cio);\r
 706                 }\r
 707                 break;\r
 708 \r
 709                 default:\r
 710                         fprintf(stderr, "skipping file..\n");\r
 711                         continue;\r
 712         }\r
 713 \r
 714                 /* free the memory containing the code-stream */\r
 715                 if (parameters.infile && parameters.infile[0]!='\0') {\r
 716                         opj_free(src);\r
 717                 } else {\r
 718                         (*env)->ReleaseByteArrayElements(env, jba, jbBody, 0);\r
 719                 }\r
 720                 src = NULL;\r
 721 \r
 722                 /* create output image.\r
 723                         If the -o parameter is given in the JavaParameters, write the decoded version into a file.\r
 724                         Implemented for debug purpose. */\r
 725                 /* ---------------------------------- */\r
 726                 switch (parameters.cod_format) {\r
 727                 case PXM_DFMT:                  /* PNM PGM PPM */\r
 728                         if (imagetopnm(image, parameters.outfile)) {\r
 729                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);\r
 730                         }\r
 731                         else {\r
 732                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);\r
 733                         }\r
 734                         break;\r
 735 \r
 736                 case PGX_DFMT:                  /* PGX */\r
 737                         if(imagetopgx(image, parameters.outfile)){\r
 738                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);\r
 739                         }\r
 740                         else {\r
 741                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);\r
 742                         }\r
 743                         break;\r
 744 \r
 745                 case BMP_DFMT:                  /* BMP */\r
 746                         if(imagetobmp(image, parameters.outfile)){\r
 747                                 fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);\r
 748                         }\r
 749                         else {\r
 750                                 fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);\r
 751                         }\r
 752                         break;\r
 753 \r
 754                 }\r
 755 \r
 756                 /* ========= Return the image to the Java structure ===============*/\r
 757 #ifdef CHECK_THRESHOLDS\r
 758                 printf("C: checking thresholds\n");\r
 759 #endif\r
 760                 /* First compute the real with and height, in function of the resolutions decoded.*/\r
 761                 /*wr = (image->comps[0].w + (1 << image->comps[0].factor) -1) >> image->comps[0].factor;*/\r
 762                 /*hr = (image->comps[0].h + (1 << image->comps[0].factor) -1) >> image->comps[0].factor;*/\r
 763                 w = image->comps[0].w;\r
 764                 h = image->comps[0].h;\r
 765 \r
 766                 if (image->numcomps==3) {       /* 3 components color image*/\r
 767                         ptr = image->comps[0].data;\r
 768                         ptr1 = image->comps[1].data;\r
 769                         ptr2 = image->comps[2].data;\r
 770 #ifdef CHECK_THRESHOLDS \r
 771                         if (image->comps[0].sgnd) {\r
 772                                 min_value = -128;\r
 773                                 max_value = 127;\r
 774                         } else {\r
 775                                 min_value = 0;\r
 776                                 max_value = 255;\r
 777                         }\r
 778 #endif                  \r
 779                         /* Get the pointer to the Java structure where the data must be copied*/\r
 780                         fid = (*env)->GetFieldID(env, cls,"image24", "[I");\r
 781                         jia = (*env)->GetObjectField(env, obj, fid);\r
 782                         jiBody = (*env)->GetIntArrayElements(env, jia, 0);\r
 783                         ptrIBody = jiBody;\r
 784                         printf("C: transfering image24: %d int to Java pointer=%d\n",image->numcomps*w*h, ptrIBody);\r
 785 \r
 786                         for (i=0; i<w*h; i++) {\r
 787                                 tempUC = (unsigned char)(ptr[i]);\r
 788                                 tempUC1 = (unsigned char)(ptr1[i]);\r
 789                                 tempUC2 = (unsigned char)(ptr2[i]);\r
 790 #ifdef CHECK_THRESHOLDS\r
 791                                 if (tempUC < min_value)\r
 792                                         tempUC=min_value;\r
 793                                 else if (tempUC > max_value)\r
 794                                         tempUC=max_value;\r
 795                                 if (tempUC1 < min_value)\r
 796                                         tempUC1=min_value;\r
 797                                 else if (tempUC1 > max_value)\r
 798                                         tempUC1=max_value;\r
 799                                 if (tempUC2 < min_value)\r
 800                                         tempUC2=min_value;\r
 801                                 else if (tempUC2 > max_value)\r
 802                                         tempUC2=max_value;\r
 803 #endif\r
 804                                 *(ptrIBody++)  = (int) ( (tempUC2<<16) + (tempUC1<<8) + tempUC );\r
 805                         }\r
 806                         (*env)->ReleaseIntArrayElements(env, jia, jiBody, 0);\r
 807 \r
 808                 } else {        /* 1 component 8 or 16 bpp image*/\r
 809                         ptr = image->comps[0].data;\r
 810                         printf("C: before transfering a %d bpp image to java (length = %d)\n",image->comps[0].prec ,w*h);\r
 811                         if (image->comps[0].prec<=8) {\r
 812                                 fid = (*env)->GetFieldID(env, cls,"image8", "[B");\r
 813                                 jba = (*env)->GetObjectField(env, obj, fid);\r
 814                                 jbBody = (*env)->GetByteArrayElements(env, jba, 0);\r
 815                                 ptrBBody = jbBody;\r
 816 #ifdef CHECK_THRESHOLDS \r
 817                                 if (image->comps[0].sgnd) {\r
 818                                         min_value = -128;\r
 819                                         max_value = 127;\r
 820                                 } else {\r
 821                                         min_value = 0;\r
 822                                         max_value = 255;\r
 823                                 }\r
 824 #endif                                                          \r
 825                                 /*printf("C: transfering %d shorts to Java image8 pointer = %d\n", wr*hr,ptrSBody);*/\r
 826                                 for (i=0; i<w*h; i++) {\r
 827                                         tempUC = (unsigned char) (ptr[i]);\r
 828 #ifdef CHECK_THRESHOLDS\r
 829                                         if (tempUC<min_value)\r
 830                                                 tempUC = min_value;\r
 831                                         else if (tempUC > max_value)\r
 832                                                 tempUC = max_value;\r
 833 #endif\r
 834                                         *(ptrBBody++) = tempUC;\r
 835                                 }\r
 836                                 (*env)->ReleaseByteArrayElements(env, jba, jbBody, 0);\r
 837                                 printf("C: image8 transfered to Java\n");\r
 838                         } else {\r
 839                                 fid = (*env)->GetFieldID(env, cls,"image16", "[S");\r
 840                                 jsa = (*env)->GetObjectField(env, obj, fid);\r
 841                                 jsBody = (*env)->GetShortArrayElements(env, jsa, 0);\r
 842                                 ptrSBody = jsBody;\r
 843 #ifdef CHECK_THRESHOLDS \r
 844                                 if (image->comps[0].sgnd) {\r
 845                                         min_value = -32768;\r
 846                                         max_value = 32767;\r
 847                                 } else {\r
 848                                         min_value = 0;\r
 849                                         max_value = 65535;\r
 850                                 }\r
 851                                 printf("C: minValue = %d, maxValue = %d\n", min_value, max_value);\r
 852 #endif                          \r
 853                                 printf("C: transfering %d shorts to Java image16 pointer = %d\n", w*h,ptrSBody);\r
 854                                 for (i=0; i<w*h; i++) {\r
 855                                         tempS = (short) (ptr[i]);\r
 856 #ifdef CHECK_THRESHOLDS\r
 857                                         if (tempS<min_value) {\r
 858                                                 printf("C: value %d truncated to %d\n", tempS, min_value);\r
 859                                                 tempS = min_value;\r
 860                                         } else if (tempS > max_value) {\r
 861                                                 printf("C: value %d truncated to %d\n", tempS, max_value);\r
 862                                                 tempS = max_value;\r
 863                                         }\r
 864 #endif\r
 865                                         *(ptrSBody++) = tempS;\r
 866                                 }\r
 867                                 (*env)->ReleaseShortArrayElements(env, jsa, jsBody, 0);\r
 868                                 printf("C: image16 completely filled\n");\r
 869                         }\r
 870                 }       \r
 871 \r
 872 \r
 873                 /* free remaining structures */\r
 874                 if(dinfo) {\r
 875                         opj_destroy_decompress(dinfo);\r
 876                 }\r
 877                 /* free image data structure */\r
 878                 opj_image_destroy(image);\r
 879 \r
 880         }\r
 881         return 1; /* OK */\r
 882 }\r
 883 /*end main*/\r
 884 \r