libopenjpeg/openjpeg.c

   1 /*
   2  * Copyright (c) 2005, Herv� 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_includes.h"
  32
  33 /* ---------------------------------------------------------------------- */
  34 #ifdef WIN32
  35 #ifndef OPJ_STATIC
  36 BOOL APIENTRY
  37 DllMain(HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) {
  38         switch (ul_reason_for_call) {
  39                 case DLL_PROCESS_ATTACH :
  40                         break;
  41                 case DLL_PROCESS_DETACH :
  42                         break;
  43                 case DLL_THREAD_ATTACH :
  44                 case DLL_THREAD_DETACH :
  45                         break;
  46     }
  47
  48     return TRUE;
  49 }
  50 #endif /* OPJ_STATIC */
  51 #endif /* WIN32 */
  52
  53 /* ---------------------------------------------------------------------- */
  54
  55
  56 const char* OPJ_CALLCONV opj_version() {
  57     return OPENJPEG_VERSION;
  58 }
  59
  60 opj_dinfo_t* OPJ_CALLCONV opj_create_decompress(OPJ_CODEC_FORMAT format) {
  61         opj_dinfo_t *dinfo = (opj_dinfo_t*)opj_malloc(sizeof(opj_dinfo_t));
  62         if(!dinfo) return NULL;
  63         dinfo->is_decompressor = true;
  64         switch(format) {
  65                 case CODEC_J2K:
  66                 case CODEC_JPT:
  67                         /* get a J2K decoder handle */
  68                         dinfo->j2k_handle = (void*)j2k_create_decompress((opj_common_ptr)dinfo);
  69                         if(!dinfo->j2k_handle) {
  70                                 opj_free(dinfo);
  71                                 return NULL;
  72                         }
  73                         break;
  74                 case CODEC_JP2:
  75                         /* get a JP2 decoder handle */
  76                         dinfo->jp2_handle = (void*)jp2_create_decompress((opj_common_ptr)dinfo);
  77                         if(!dinfo->jp2_handle) {
  78                                 opj_free(dinfo);
  79                                 return NULL;
  80                         }
  81                         break;
  82                 case CODEC_UNKNOWN:
  83                 default:
  84                         opj_free(dinfo);
  85                         return NULL;
  86         }
  87
  88         dinfo->codec_format = format;
  89
  90         return dinfo;
  91 }
  92
  93 void OPJ_CALLCONV opj_destroy_decompress(opj_dinfo_t *dinfo) {
  94         if(dinfo) {
  95                 /* destroy the codec */
  96                 switch(dinfo->codec_format) {
  97                         case CODEC_J2K:
  98                         case CODEC_JPT:
  99                                 j2k_destroy_decompress((opj_j2k_t*)dinfo->j2k_handle);
 100                                 break;
 101                         case CODEC_JP2:
 102                                 jp2_destroy_decompress((opj_jp2_t*)dinfo->jp2_handle);
 103                                 break;
 104                         case CODEC_UNKNOWN:
 105                         default:
 106                                 break;
 107                 }
 108                 /* destroy the decompressor */
 109                 opj_free(dinfo);
 110         }
 111 }
 112
 113 void OPJ_CALLCONV opj_set_default_decoder_parameters(opj_dparameters_t *parameters) {
 114         if(parameters) {
 115                 memset(parameters, 0, sizeof(opj_dparameters_t));
 116                 /* default decoding parameters */
 117                 parameters->cp_layer = 0;
 118                 parameters->cp_reduce = 0;
 119
 120                 parameters->decod_format = -1;
 121                 parameters->cod_format = -1;
 122         }
 123 }
 124
 125 void OPJ_CALLCONV opj_setup_decoder(opj_dinfo_t *dinfo, opj_dparameters_t *parameters) {
 126         if(dinfo && parameters) {
 127                 switch(dinfo->codec_format) {
 128                         case CODEC_J2K:
 129                         case CODEC_JPT:
 130                                 j2k_setup_decoder((opj_j2k_t*)dinfo->j2k_handle, parameters);
 131                                 break;
 132                         case CODEC_JP2:
 133                                 jp2_setup_decoder((opj_jp2_t*)dinfo->jp2_handle, parameters);
 134                                 break;
 135                         case CODEC_UNKNOWN:
 136                         default:
 137                                 break;
 138                 }
 139         }
 140 }
 141
 142 opj_image_t* OPJ_CALLCONV opj_decode(opj_dinfo_t *dinfo, opj_cio_t *cio) {
 143         if(dinfo && cio) {
 144                 switch(dinfo->codec_format) {
 145                         case CODEC_J2K:
 146                                 return j2k_decode((opj_j2k_t*)dinfo->j2k_handle, cio);
 147                         case CODEC_JPT:
 148                                 return j2k_decode_jpt_stream((opj_j2k_t*)dinfo->j2k_handle, cio);
 149                         case CODEC_JP2:
 150                                 return jp2_decode((opj_jp2_t*)dinfo->jp2_handle, cio);
 151                         case CODEC_UNKNOWN:
 152                         default:
 153                                 break;
 154                 }
 155         }
 156
 157         return NULL;
 158 }
 159
 160 opj_cinfo_t* OPJ_CALLCONV opj_create_compress(OPJ_CODEC_FORMAT format) {
 161         opj_cinfo_t *cinfo = (opj_cinfo_t*)opj_malloc(sizeof(opj_cinfo_t));
 162         if(!cinfo) return NULL;
 163         cinfo->is_decompressor = false;
 164         switch(format) {
 165                 case CODEC_J2K:
 166                         /* get a J2K coder handle */
 167                         cinfo->j2k_handle = (void*)j2k_create_compress((opj_common_ptr)cinfo);
 168                         if(!cinfo->j2k_handle) {
 169                                 opj_free(cinfo);
 170                                 return NULL;
 171                         }
 172                         break;
 173                 case CODEC_JP2:
 174                         /* get a JP2 coder handle */
 175                         cinfo->jp2_handle = (void*)jp2_create_compress((opj_common_ptr)cinfo);
 176                         if(!cinfo->jp2_handle) {
 177                                 opj_free(cinfo);
 178                                 return NULL;
 179                         }
 180                         break;
 181                 case CODEC_JPT:
 182                 case CODEC_UNKNOWN:
 183                 default:
 184                         opj_free(cinfo);
 185                         return NULL;
 186         }
 187
 188         cinfo->codec_format = format;
 189
 190         return cinfo;
 191 }
 192
 193 void OPJ_CALLCONV opj_destroy_compress(opj_cinfo_t *cinfo) {
 194         if(cinfo) {
 195                 /* destroy the codec */
 196                 switch(cinfo->codec_format) {
 197                         case CODEC_J2K:
 198                                 j2k_destroy_decompress((opj_j2k_t*)cinfo->j2k_handle);
 199                                 break;
 200                         case CODEC_JP2:
 201                                 jp2_destroy_decompress((opj_jp2_t*)cinfo->jp2_handle);
 202                                 break;
 203                         case CODEC_JPT:
 204                         case CODEC_UNKNOWN:
 205                         default:
 206                                 break;
 207                 }
 208                 /* destroy the decompressor */
 209                 opj_free(cinfo);
 210         }
 211 }
 212
 213 void OPJ_CALLCONV opj_set_default_encoder_parameters(opj_cparameters_t *parameters) {
 214         if(parameters) {
 215                 memset(parameters, 0, sizeof(opj_cparameters_t));
 216                 /* default coding parameters */
 217                 parameters->numresolution = 6;
 218                 parameters->cblockw_init = 64;
 219                 parameters->cblockh_init = 64;
 220                 parameters->prog_order = LRCP;
 221                 parameters->roi_compno = -1;            /* no ROI */
 222                 parameters->subsampling_dx = 1;
 223                 parameters->subsampling_dy = 1;
 224
 225                 parameters->decod_format = -1;
 226                 parameters->cod_format = -1;
 227         }
 228 }
 229
 230 void OPJ_CALLCONV opj_setup_encoder(opj_cinfo_t *cinfo, opj_cparameters_t *parameters, opj_image_t *image) {
 231         if(cinfo && parameters && image) {
 232                 switch(cinfo->codec_format) {
 233                         case CODEC_J2K:
 234                                 j2k_setup_encoder((opj_j2k_t*)cinfo->j2k_handle, parameters, image);
 235                                 break;
 236                         case CODEC_JP2:
 237                                 jp2_setup_encoder((opj_jp2_t*)cinfo->jp2_handle, parameters, image);
 238                                 break;
 239                         case CODEC_JPT:
 240                         case CODEC_UNKNOWN:
 241                         default:
 242                                 break;
 243                 }
 244         }
 245 }
 246
 247 bool OPJ_CALLCONV opj_encode(opj_cinfo_t *cinfo, opj_cio_t *cio, opj_image_t *image, char *index) {
 248         if(cinfo && cio && image) {
 249                 switch(cinfo->codec_format) {
 250                         case CODEC_J2K:
 251                                 return j2k_encode((opj_j2k_t*)cinfo->j2k_handle, cio, image, index);
 252                         case CODEC_JP2:
 253                                 return jp2_encode((opj_jp2_t*)cinfo->jp2_handle, cio, image, index);
 254                         case CODEC_JPT:
 255                         case CODEC_UNKNOWN:
 256                         default:
 257                                 break;
 258                 }
 259         }
 260
 261         return false;
 262 }
 263
 264