+typedef struct opj_decompression
+{
+ opj_bool (* opj_read_header) ( struct opj_stream_private * cio,
+ void * p_codec,
+ opj_file_info_t * file_info,
+ struct opj_event_mgr * p_manager);
+
+ opj_image_t* (* opj_decode) ( void * p_codec,
+ struct opj_stream_private *p_cio,
+ struct opj_event_mgr * p_manager);
+
+ opj_bool (*opj_read_tile_header)( void * p_codec,
+ OPJ_UINT32 * p_tile_index,
+ OPJ_UINT32* p_data_size,
+ OPJ_INT32 * p_tile_x0, OPJ_INT32 * p_tile_y0,
+ OPJ_INT32 * p_tile_x1, OPJ_INT32 * p_tile_y1,
+ OPJ_UINT32 * p_nb_comps,
+ opj_bool * p_should_go_on,
+ struct opj_stream_private *p_cio,
+ struct opj_event_mgr * p_manager);
+
+ opj_bool (*opj_decode_tile_data)( void * p_codec,
+ OPJ_UINT32 p_tile_index,
+ OPJ_BYTE * p_data,
+ OPJ_UINT32 p_data_size,
+ struct opj_stream_private *p_cio,
+ struct opj_event_mgr * p_manager);
+
+ opj_bool (* opj_end_decompress) ( void *p_codec,
+ struct opj_stream_private *cio,
+ struct opj_event_mgr * p_manager);
+
+ void (* opj_destroy) (void * p_codec);
+
+ void (*opj_setup_decoder) (void * p_codec, opj_dparameters_t * p_param);
+
+ opj_bool (*opj_set_decode_area) ( void * p_codec,
+ OPJ_INT32 p_start_x, OPJ_INT32 p_end_x,
+ OPJ_INT32 p_start_y, OPJ_INT32 p_end_y,
+ struct opj_event_mgr * p_manager);
+}opj_decompression_t;
+
+typedef struct opj_compression
+{
+ opj_bool (* opj_start_compress) (void *p_codec,struct opj_stream_private *cio,struct opj_image * p_image, struct opj_event_mgr * p_manager);
+ opj_bool (* opj_encode) (void * p_codec, struct opj_stream_private *p_cio, struct opj_event_mgr * p_manager);
+ opj_bool (* opj_write_tile) (void * p_codec,OPJ_UINT32 p_tile_index,OPJ_BYTE * p_data,OPJ_UINT32 p_data_size,struct opj_stream_private * p_cio,struct opj_event_mgr * p_manager);
+ opj_bool (* opj_end_compress) (void * p_codec, struct opj_stream_private *p_cio, struct opj_event_mgr * p_manager);
+ void (* opj_destroy) (void * p_codec);
+ void (*opj_setup_encoder) (void * p_codec,opj_cparameters_t * p_param,struct opj_image * p_image, struct opj_event_mgr * p_manager);
+
+}opj_compression_t;
+
+typedef struct opj_codec_private
+{
+ /* code-blocks informations */
+ union {
+ opj_decompression_t m_decompression;
+ opj_compression_t m_compression;
+ } m_codec_data;
+ void * m_codec;
+ opj_event_mgr_t* m_event_mgr;
+ unsigned is_decompressor : 1;
+}
+opj_codec_private_t;
+
+/**
+ * Default callback function.
+ * Do nothing.
+ */
+void opj_default_callback (const char *msg, void *client_data)
+{
+ //FIXME V2 -> V1 cf below
+}
+
+void set_default_event_handler(opj_event_mgr_t * p_manager)
+{
+ //FIXME V2 -> V1
+ //p_manager->m_error_data = 00;
+ //p_manager->m_warning_data = 00;
+ //p_manager->m_info_data = 00;
+ p_manager->error_handler = opj_default_callback;
+ p_manager->info_handler = opj_default_callback;
+ p_manager->warning_handler = opj_default_callback;
+}
+
+OPJ_UINT32 opj_read_from_file (void * p_buffer, OPJ_UINT32 p_nb_bytes, FILE * p_file)
+{
+ OPJ_UINT32 l_nb_read = fread(p_buffer,1,p_nb_bytes,p_file);
+ return l_nb_read ? l_nb_read : -1;
+}
+
+OPJ_UINT32 opj_write_from_file (void * p_buffer, OPJ_UINT32 p_nb_bytes, FILE * p_file)
+{
+ return fwrite(p_buffer,1,p_nb_bytes,p_file);
+}
+
+OPJ_SIZE_T opj_skip_from_file (OPJ_SIZE_T p_nb_bytes, FILE * p_user_data)
+{
+ if (fseek(p_user_data,p_nb_bytes,SEEK_CUR)) {
+ return -1;
+ }
+
+ return p_nb_bytes;
+}
+
+opj_bool opj_seek_from_file (OPJ_SIZE_T p_nb_bytes, FILE * p_user_data)
+{
+ if (fseek(p_user_data,p_nb_bytes,SEEK_SET)) {
+ return EXIT_FAILURE;
+ }
+
+ return EXIT_SUCCESS;
+}
+