forked from KolibriOS/kolibrios
884 lines
28 KiB
C
884 lines
28 KiB
C
/*
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* Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
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* Copyright (c) 2002-2007, Professor Benoit Macq
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* Copyright (c) 2001-2003, David Janssens
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* Copyright (c) 2002-2003, Yannick Verschueren
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* Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
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* Copyright (c) 2005, Herve Drolon, FreeImage Team
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* Copyright (c) 2006-2007, Parvatha Elangovan
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* Copyright (c) 2007, Patrick Piscaglia (Telemis)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <jni.h>
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#include <math.h>
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#include "openjpeg.h"
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#include "getopt.h"
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#include "convert.h"
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#include "dirent.h"
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#include "org_openJpeg_OpenJPEGJavaDecoder.h"
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#ifndef _WIN32
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#define stricmp strcasecmp
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#define strnicmp strncasecmp
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#endif
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#include "format_defs.h"
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typedef struct callback_variables {
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JNIEnv *env;
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/** 'jclass' object used to call a Java method from the C */
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jobject *jobj;
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/** 'jclass' object used to call a Java method from the C */
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jmethodID message_mid;
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jmethodID error_mid;
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} callback_variables_t;
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typedef struct dircnt{
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/** Buffer for holding images read from Directory*/
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char *filename_buf;
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/** Pointer to the buffer*/
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char **filename;
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}dircnt_t;
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typedef struct img_folder{
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/** The directory path of the folder containing input images*/
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char *imgdirpath;
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/** Output format*/
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char *out_format;
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/** Enable option*/
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char set_imgdir;
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/** Enable Cod Format for output*/
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char set_out_format;
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}img_fol_t;
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void decode_help_display() {
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fprintf(stdout,"HELP\n----\n\n");
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fprintf(stdout,"- the -h option displays this help information on screen\n\n");
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/* UniPG>> */
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fprintf(stdout,"List of parameters for the JPEG 2000 "
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#ifdef USE_JPWL
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"+ JPWL "
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#endif /* USE_JPWL */
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"decoder:\n");
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/* <<UniPG */
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fprintf(stdout,"\n");
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fprintf(stdout,"\n");
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fprintf(stdout," -ImgDir \n");
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fprintf(stdout," Image file Directory path \n");
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fprintf(stdout," -OutFor \n");
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fprintf(stdout," REQUIRED only if -ImgDir is used\n");
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fprintf(stdout," Need to specify only format without filename <BMP> \n");
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fprintf(stdout," Currently accepts PGM, PPM, PNM, PGX, BMP format\n");
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fprintf(stdout," -i <compressed file>\n");
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fprintf(stdout," REQUIRED only if an Input image directory not specified\n");
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fprintf(stdout," Currently accepts J2K-files, JP2-files and JPT-files. The file type\n");
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fprintf(stdout," is identified based on its suffix.\n");
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fprintf(stdout," -o <decompressed file>\n");
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fprintf(stdout," REQUIRED\n");
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fprintf(stdout," Currently accepts PGM-files, PPM-files, PNM-files, PGX-files and\n");
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fprintf(stdout," BMP-files. Binary data is written to the file (not ascii). If a PGX\n");
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fprintf(stdout," filename is given, there will be as many output files as there are\n");
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fprintf(stdout," components: an indice starting from 0 will then be appended to the\n");
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fprintf(stdout," output filename, just before the \"pgx\" extension. If a PGM filename\n");
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fprintf(stdout," is given and there are more than one component, only the first component\n");
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fprintf(stdout," will be written to the file.\n");
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fprintf(stdout," -r <reduce factor>\n");
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fprintf(stdout," Set the number of highest resolution levels to be discarded. The\n");
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fprintf(stdout," image resolution is effectively divided by 2 to the power of the\n");
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fprintf(stdout," number of discarded levels. The reduce factor is limited by the\n");
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fprintf(stdout," smallest total number of decomposition levels among tiles.\n");
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fprintf(stdout," -l <number of quality layers to decode>\n");
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fprintf(stdout," Set the maximum number of quality layers to decode. If there are\n");
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fprintf(stdout," less quality layers than the specified number, all the quality layers\n");
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fprintf(stdout," are decoded.\n");
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/* UniPG>> */
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#ifdef USE_JPWL
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fprintf(stdout," -W <options>\n");
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fprintf(stdout," Activates the JPWL correction capability, if the codestream complies.\n");
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fprintf(stdout," Options can be a comma separated list of <param=val> tokens:\n");
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fprintf(stdout," c, c=numcomps\n");
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fprintf(stdout," numcomps is the number of expected components in the codestream\n");
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fprintf(stdout," (search of first EPB rely upon this, default is %d)\n", JPWL_EXPECTED_COMPONENTS);
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#endif /* USE_JPWL */
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/* <<UniPG */
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fprintf(stdout,"\n");
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}
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/* -------------------------------------------------------------------------- */
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int get_num_images(char *imgdirpath){
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DIR *dir;
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struct dirent* content;
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int num_images = 0;
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/*Reading the input images from given input directory*/
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dir= opendir(imgdirpath);
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if(!dir){
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fprintf(stderr,"Could not open Folder %s\n",imgdirpath);
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return 0;
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}
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while((content=readdir(dir))!=NULL){
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if(strcmp(".",content->d_name)==0 || strcmp("..",content->d_name)==0 )
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continue;
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num_images++;
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}
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return num_images;
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}
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int load_images(dircnt_t *dirptr, char *imgdirpath){
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DIR *dir;
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struct dirent* content;
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int i = 0;
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/*Reading the input images from given input directory*/
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dir= opendir(imgdirpath);
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if(!dir){
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fprintf(stderr,"Could not open Folder %s\n",imgdirpath);
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return 1;
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}else {
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fprintf(stderr,"Folder opened successfully\n");
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}
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while((content=readdir(dir))!=NULL){
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if(strcmp(".",content->d_name)==0 || strcmp("..",content->d_name)==0 )
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continue;
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strcpy(dirptr->filename[i],content->d_name);
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i++;
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}
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return 0;
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}
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int get_file_format(char *filename) {
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unsigned int i;
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static const char *extension[] = {"pgx", "pnm", "pgm", "ppm", "bmp","tif", "raw", "tga", "j2k", "jp2", "jpt", "j2c" };
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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 };
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char * ext = strrchr(filename, '.');
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if (ext == NULL)
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return -1;
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ext++;
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if(ext) {
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for(i = 0; i < sizeof(format)/sizeof(*format); i++) {
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if(strnicmp(ext, extension[i], 3) == 0) {
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return format[i];
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}
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}
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}
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return -1;
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}
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/* -------------------------------------------------------------------------- */
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int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters,img_fol_t *img_fol) {
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/* parse the command line */
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int totlen;
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option_t long_option[]={
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{"ImgDir",REQ_ARG, NULL ,'y'},
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{"OutFor",REQ_ARG, NULL ,'O'},
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};
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/* UniPG>> */
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const char optlist[] = "i:o:r:l:hx:"
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#ifdef USE_JPWL
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"W:"
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#endif /* USE_JPWL */
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;
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/*for (i=0; i<argc; i++) {
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printf("[%s]",argv[i]);
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}
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printf("\n");*/
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/* <<UniPG */
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totlen=sizeof(long_option);
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img_fol->set_out_format = 0;
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reset_options_reading();
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while (1) {
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int c = getopt_long(argc, argv,optlist,long_option,totlen);
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if (c == -1)
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break;
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switch (c) {
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case 'i': /* input file */
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{
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char *infile = optarg;
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parameters->decod_format = get_file_format(infile);
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switch(parameters->decod_format) {
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case J2K_CFMT:
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case JP2_CFMT:
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case JPT_CFMT:
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break;
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default:
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fprintf(stderr,
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"!! Unrecognized format for infile : %s [accept only *.j2k, *.jp2, *.jpc or *.jpt] !!\n\n",
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infile);
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return 1;
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}
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strncpy(parameters->infile, infile, sizeof(parameters->infile)-1);
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}
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break;
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/* ----------------------------------------------------- */
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case 'o': /* output file */
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{
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char *outfile = optarg;
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parameters->cod_format = get_file_format(outfile);
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switch(parameters->cod_format) {
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case PGX_DFMT:
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case PXM_DFMT:
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case BMP_DFMT:
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case TIF_DFMT:
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case RAW_DFMT:
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case TGA_DFMT:
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break;
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default:
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fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga]!! \n", outfile);
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return 1;
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}
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strncpy(parameters->outfile, outfile, sizeof(parameters->outfile)-1);
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}
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break;
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/* ----------------------------------------------------- */
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case 'O': /* output format */
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{
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char outformat[50];
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char *of = optarg;
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sprintf(outformat,".%s",of);
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img_fol->set_out_format = 1;
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parameters->cod_format = get_file_format(outformat);
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switch(parameters->cod_format) {
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case PGX_DFMT:
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img_fol->out_format = "pgx";
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break;
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case PXM_DFMT:
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img_fol->out_format = "ppm";
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break;
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case BMP_DFMT:
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img_fol->out_format = "bmp";
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break;
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case TIF_DFMT:
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img_fol->out_format = "tif";
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break;
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case RAW_DFMT:
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img_fol->out_format = "raw";
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break;
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case TGA_DFMT:
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img_fol->out_format = "raw";
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break;
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default:
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fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga]!! \n", outformat);
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return 1;
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break;
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}
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}
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break;
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/* ----------------------------------------------------- */
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case 'r': /* reduce option */
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{
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sscanf(optarg, "%d", ¶meters->cp_reduce);
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}
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break;
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/* ----------------------------------------------------- */
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case 'l': /* layering option */
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{
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sscanf(optarg, "%d", ¶meters->cp_layer);
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}
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break;
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/* ----------------------------------------------------- */
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case 'h': /* display an help description */
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decode_help_display();
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return 1;
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/* ------------------------------------------------------ */
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case 'y': /* Image Directory path */
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{
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img_fol->imgdirpath = (char*)malloc(strlen(optarg) + 1);
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strcpy(img_fol->imgdirpath,optarg);
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img_fol->set_imgdir=1;
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}
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break;
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/* ----------------------------------------------------- */
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/* UniPG>> */
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#ifdef USE_JPWL
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case 'W': /* activate JPWL correction */
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{
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char *token = NULL;
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token = strtok(optarg, ",");
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while(token != NULL) {
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/* search expected number of components */
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if (*token == 'c') {
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static int compno;
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compno = JPWL_EXPECTED_COMPONENTS; /* predefined no. of components */
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if(sscanf(token, "c=%d", &compno) == 1) {
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/* Specified */
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if ((compno < 1) || (compno > 256)) {
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fprintf(stderr, "ERROR -> invalid number of components c = %d\n", compno);
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return 1;
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}
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parameters->jpwl_exp_comps = compno;
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} else if (!strcmp(token, "c")) {
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/* default */
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parameters->jpwl_exp_comps = compno; /* auto for default size */
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} else {
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fprintf(stderr, "ERROR -> invalid components specified = %s\n", token);
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return 1;
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};
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}
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/* search maximum number of tiles */
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if (*token == 't') {
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static int tileno;
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tileno = JPWL_MAXIMUM_TILES; /* maximum no. of tiles */
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if(sscanf(token, "t=%d", &tileno) == 1) {
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/* Specified */
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if ((tileno < 1) || (tileno > JPWL_MAXIMUM_TILES)) {
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fprintf(stderr, "ERROR -> invalid number of tiles t = %d\n", tileno);
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return 1;
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}
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parameters->jpwl_max_tiles = tileno;
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} else if (!strcmp(token, "t")) {
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/* default */
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parameters->jpwl_max_tiles = tileno; /* auto for default size */
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} else {
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fprintf(stderr, "ERROR -> invalid tiles specified = %s\n", token);
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return 1;
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};
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}
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/* next token or bust */
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token = strtok(NULL, ",");
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};
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parameters->jpwl_correct = true;
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fprintf(stdout, "JPWL correction capability activated\n");
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fprintf(stdout, "- expecting %d components\n", parameters->jpwl_exp_comps);
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}
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break;
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#endif /* USE_JPWL */
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/* <<UniPG */
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/* ----------------------------------------------------- */
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default:
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fprintf(stderr,"WARNING -> this option is not valid \"-%c %s\"\n",c, optarg);
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break;
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}
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}
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/* No check for possible errors before the -i and -o options are of course not mandatory*/
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return 0;
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}
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/* -------------------------------------------------------------------------- */
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/**
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error callback returning the message to Java andexpecting a callback_variables_t client object
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*/
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void error_callback(const char *msg, void *client_data) {
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callback_variables_t* vars = (callback_variables_t*) client_data;
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JNIEnv *env = vars->env;
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jstring jbuffer;
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jbuffer = (*env)->NewStringUTF(env, msg);
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(*env)->ExceptionClear(env);
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(*env)->CallVoidMethod(env, *(vars->jobj), vars->error_mid, jbuffer);
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if ((*env)->ExceptionOccurred(env)) {
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fprintf(stderr,"C: Exception during call back method\n");
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(*env)->ExceptionDescribe(env);
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(*env)->ExceptionClear(env);
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}
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(*env)->DeleteLocalRef(env, jbuffer);
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}
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/**
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warning callback returning the message to Java andexpecting a callback_variables_t client object
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*/
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void warning_callback(const char *msg, void *client_data) {
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callback_variables_t* vars = (callback_variables_t*) client_data;
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JNIEnv *env = vars->env;
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jstring jbuffer;
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jbuffer = (*env)->NewStringUTF(env, msg);
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(*env)->ExceptionClear(env);
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(*env)->CallVoidMethod(env, *(vars->jobj), vars->message_mid, jbuffer);
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if ((*env)->ExceptionOccurred(env)) {
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fprintf(stderr,"C: Exception during call back method\n");
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(*env)->ExceptionDescribe(env);
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(*env)->ExceptionClear(env);
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}
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(*env)->DeleteLocalRef(env, jbuffer);
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}
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/**
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information callback returning the message to Java andexpecting a callback_variables_t client object
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*/
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void info_callback(const char *msg, void *client_data) {
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callback_variables_t* vars = (callback_variables_t*) client_data;
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JNIEnv *env = vars->env;
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jstring jbuffer;
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jbuffer = (*env)->NewStringUTF(env, msg);
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(*env)->ExceptionClear(env);
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(*env)->CallVoidMethod(env, *(vars->jobj), vars->message_mid, jbuffer);
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if ((*env)->ExceptionOccurred(env)) {
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fprintf(stderr,"C: Exception during call back method\n");
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(*env)->ExceptionDescribe(env);
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(*env)->ExceptionClear(env);
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}
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(*env)->DeleteLocalRef(env, jbuffer);
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}
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/* --------------------------------------------------------------------------
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-------------------- MAIN METHOD, CALLED BY JAVA -----------------------*/
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JNIEXPORT jint JNICALL Java_org_openJpeg_OpenJPEGJavaDecoder_internalDecodeJ2KtoImage(JNIEnv *env, jobject obj, jobjectArray javaParameters) {
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int argc; /* To simulate the command line parameters (taken from the javaParameters variable) and be able to re-use the */
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char **argv; /* 'parse_cmdline_decoder' method taken from the j2k_to_image project */
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opj_dparameters_t parameters; /* decompression parameters */
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img_fol_t img_fol;
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opj_event_mgr_t event_mgr; /* event manager */
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opj_image_t *image = NULL;
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FILE *fsrc = NULL;
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unsigned char *src = NULL;
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int file_length;
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int num_images;
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int i,j,imageno;
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|
opj_dinfo_t* dinfo = NULL; /* handle to a decompressor */
|
|
opj_cio_t *cio = NULL;
|
|
int w,h;
|
|
long min_value, max_value;
|
|
short tempS; unsigned char tempUC, tempUC1, tempUC2;
|
|
// ==> Access variables to the Java member variables
|
|
jsize arraySize;
|
|
jclass cls;
|
|
jobject object;
|
|
jboolean isCopy;
|
|
jfieldID fid;
|
|
jbyteArray jba;
|
|
jshortArray jsa;
|
|
jintArray jia;
|
|
jbyte *jbBody, *ptrBBody;
|
|
jshort *jsBody, *ptrSBody;
|
|
jint *jiBody, *ptrIBody;
|
|
callback_variables_t msgErrorCallback_vars;
|
|
// <=== access variable to Java member variables */
|
|
int *ptr, *ptr1, *ptr2; // <== To transfer the decoded image to Java
|
|
|
|
/* configure the event callbacks */
|
|
memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
|
|
event_mgr.error_handler = error_callback;
|
|
event_mgr.warning_handler = warning_callback;
|
|
event_mgr.info_handler = info_callback;
|
|
|
|
// JNI reference to the calling class
|
|
cls = (*env)->GetObjectClass(env, obj);
|
|
|
|
// Pointers to be able to call a Java method for all the info and error messages
|
|
msgErrorCallback_vars.env = env;
|
|
msgErrorCallback_vars.jobj = &obj;
|
|
msgErrorCallback_vars.message_mid = (*env)->GetMethodID(env, cls, "logMessage", "(Ljava/lang/String;)V");
|
|
msgErrorCallback_vars.error_mid = (*env)->GetMethodID(env, cls, "logError", "(Ljava/lang/String;)V");
|
|
|
|
// Get the String[] containing the parameters, and converts it into a char** to simulate command line arguments.
|
|
arraySize = (*env)->GetArrayLength(env, javaParameters);
|
|
argc = (int) arraySize +1;
|
|
argv = malloc(argc*sizeof(char*));
|
|
argv[0] = "ProgramName.exe"; // The program name: useless
|
|
j=0;
|
|
for (i=1; i<argc; i++) {
|
|
object = (*env)->GetObjectArrayElement(env, javaParameters, i-1);
|
|
argv[i] = (*env)->GetStringUTFChars(env, object, &isCopy);
|
|
}
|
|
|
|
/*printf("C: decoder params = ");
|
|
for (i=0; i<argc; i++) {
|
|
printf("[%s]",argv[i]);
|
|
}
|
|
printf("\n");*/
|
|
|
|
/* set decoding parameters to default values */
|
|
opj_set_default_decoder_parameters(¶meters);
|
|
parameters.decod_format = J2K_CFMT;
|
|
|
|
/* parse input and get user encoding parameters */
|
|
if(parse_cmdline_decoder(argc, argv, ¶meters,&img_fol) == 1) {
|
|
// Release the Java arguments array
|
|
for (i=1; i<argc; i++)
|
|
(*env)->ReleaseStringUTFChars(env, (*env)->GetObjectArrayElement(env, javaParameters, i-1), argv[i]);
|
|
return -1;
|
|
}
|
|
// Release the Java arguments array
|
|
for (i=1; i<argc; i++)
|
|
(*env)->ReleaseStringUTFChars(env, (*env)->GetObjectArrayElement(env, javaParameters, i-1), argv[i]);
|
|
|
|
num_images=1;
|
|
|
|
// Get additional information from the Java object variables
|
|
fid = (*env)->GetFieldID(env, cls,"skippedResolutions", "I");
|
|
parameters.cp_reduce = (short) (*env)->GetIntField(env, obj, fid);
|
|
|
|
/*Decoding image one by one*/
|
|
for(imageno = 0; imageno < num_images ; imageno++)
|
|
{
|
|
image = NULL;
|
|
fprintf(stderr,"\n");
|
|
|
|
/* read the input file and put it in memory into the 'src' object, if the -i option is given in JavaParameters.
|
|
Implemented for debug purpose. */
|
|
/* -------------------------------------------------------------- */
|
|
if (parameters.infile && parameters.infile[0]!='\0') {
|
|
//printf("C: opening [%s]\n", parameters.infile);
|
|
fsrc = fopen(parameters.infile, "rb");
|
|
if (!fsrc) {
|
|
fprintf(stderr, "ERROR -> failed to open %s for reading\n", parameters.infile);
|
|
return 1;
|
|
}
|
|
fseek(fsrc, 0, SEEK_END);
|
|
file_length = ftell(fsrc);
|
|
fseek(fsrc, 0, SEEK_SET);
|
|
src = (unsigned char *) malloc(file_length);
|
|
fread(src, 1, file_length, fsrc);
|
|
fclose(fsrc);
|
|
//printf("C: %d bytes read from file\n",file_length);
|
|
} else {
|
|
// Preparing the transfer of the codestream from Java to C
|
|
//printf("C: before transfering codestream\n");
|
|
fid = (*env)->GetFieldID(env, cls,"compressedStream", "[B");
|
|
jba = (*env)->GetObjectField(env, obj, fid);
|
|
file_length = (*env)->GetArrayLength(env, jba);
|
|
jbBody = (*env)->GetByteArrayElements(env, jba, &isCopy);
|
|
src = (unsigned char*)jbBody;
|
|
}
|
|
|
|
/* decode the code-stream */
|
|
/* ---------------------- */
|
|
|
|
switch(parameters.decod_format) {
|
|
case J2K_CFMT:
|
|
{
|
|
/* JPEG-2000 codestream */
|
|
|
|
/* get a decoder handle */
|
|
dinfo = opj_create_decompress(CODEC_J2K);
|
|
|
|
/* catch events using our callbacks and give a local context */
|
|
opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, &msgErrorCallback_vars);
|
|
|
|
/* setup the decoder decoding parameters using user parameters */
|
|
opj_setup_decoder(dinfo, ¶meters);
|
|
|
|
/* open a byte stream */
|
|
cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
|
|
|
|
/* decode the stream and fill the image structure */
|
|
image = opj_decode(dinfo, cio);
|
|
if(!image) {
|
|
fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
|
|
opj_destroy_decompress(dinfo);
|
|
opj_cio_close(cio);
|
|
return 1;
|
|
}
|
|
|
|
/* close the byte stream */
|
|
opj_cio_close(cio);
|
|
}
|
|
break;
|
|
|
|
case JP2_CFMT:
|
|
{
|
|
/* JPEG 2000 compressed image data */
|
|
|
|
/* get a decoder handle */
|
|
dinfo = opj_create_decompress(CODEC_JP2);
|
|
|
|
/* catch events using our callbacks and give a local context */
|
|
opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, &msgErrorCallback_vars);
|
|
|
|
/* setup the decoder decoding parameters using the current image and user parameters */
|
|
opj_setup_decoder(dinfo, ¶meters);
|
|
|
|
/* open a byte stream */
|
|
cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
|
|
|
|
/* decode the stream and fill the image structure */
|
|
image = opj_decode(dinfo, cio);
|
|
if(!image) {
|
|
fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
|
|
opj_destroy_decompress(dinfo);
|
|
opj_cio_close(cio);
|
|
return 1;
|
|
}
|
|
|
|
/* close the byte stream */
|
|
opj_cio_close(cio);
|
|
|
|
}
|
|
break;
|
|
|
|
case JPT_CFMT:
|
|
{
|
|
/* JPEG 2000, JPIP */
|
|
|
|
/* get a decoder handle */
|
|
dinfo = opj_create_decompress(CODEC_JPT);
|
|
|
|
/* catch events using our callbacks and give a local context */
|
|
opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, &msgErrorCallback_vars);
|
|
|
|
/* setup the decoder decoding parameters using user parameters */
|
|
opj_setup_decoder(dinfo, ¶meters);
|
|
|
|
/* open a byte stream */
|
|
cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
|
|
|
|
/* decode the stream and fill the image structure */
|
|
image = opj_decode(dinfo, cio);
|
|
if(!image) {
|
|
fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
|
|
opj_destroy_decompress(dinfo);
|
|
opj_cio_close(cio);
|
|
return 1;
|
|
}
|
|
|
|
/* close the byte stream */
|
|
opj_cio_close(cio);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
fprintf(stderr, "skipping file..\n");
|
|
continue;
|
|
}
|
|
|
|
/* free the memory containing the code-stream */
|
|
if (parameters.infile && parameters.infile[0]!='\0') {
|
|
free(src);
|
|
} else {
|
|
(*env)->ReleaseByteArrayElements(env, jba, jbBody, 0);
|
|
}
|
|
src = NULL;
|
|
|
|
/* create output image.
|
|
If the -o parameter is given in the JavaParameters, write the decoded version into a file.
|
|
Implemented for debug purpose. */
|
|
/* ---------------------------------- */
|
|
switch (parameters.cod_format) {
|
|
case PXM_DFMT: /* PNM PGM PPM */
|
|
if (imagetopnm(image, parameters.outfile)) {
|
|
fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
|
|
}
|
|
else {
|
|
fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
|
|
}
|
|
break;
|
|
|
|
case PGX_DFMT: /* PGX */
|
|
if(imagetopgx(image, parameters.outfile)){
|
|
fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
|
|
}
|
|
else {
|
|
fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
|
|
}
|
|
break;
|
|
|
|
case BMP_DFMT: /* BMP */
|
|
if(imagetobmp(image, parameters.outfile)){
|
|
fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
|
|
}
|
|
else {
|
|
fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
|
|
}
|
|
break;
|
|
|
|
}
|
|
|
|
// ========= Return the image to the Java structure ===============
|
|
#ifdef CHECK_THRESHOLDS
|
|
printf("C: checking thresholds\n");
|
|
#endif
|
|
// First compute the real with and height, in function of the resolutions decoded.
|
|
//wr = (image->comps[0].w + (1 << image->comps[0].factor) -1) >> image->comps[0].factor;
|
|
//hr = (image->comps[0].h + (1 << image->comps[0].factor) -1) >> image->comps[0].factor;
|
|
w = image->comps[0].w;
|
|
h = image->comps[0].h;
|
|
|
|
if (image->numcomps==3) { // 3 components color image
|
|
ptr = image->comps[0].data;
|
|
ptr1 = image->comps[1].data;
|
|
ptr2 = image->comps[2].data;
|
|
#ifdef CHECK_THRESHOLDS
|
|
if (image->comps[0].sgnd) {
|
|
min_value = -128;
|
|
max_value = 127;
|
|
} else {
|
|
min_value = 0;
|
|
max_value = 255;
|
|
}
|
|
#endif
|
|
// Get the pointer to the Java structure where the data must be copied
|
|
fid = (*env)->GetFieldID(env, cls,"image24", "[I");
|
|
jia = (*env)->GetObjectField(env, obj, fid);
|
|
jiBody = (*env)->GetIntArrayElements(env, jia, 0);
|
|
ptrIBody = jiBody;
|
|
printf("C: transfering image24: %d int to Java pointer=%d\n",image->numcomps*w*h, ptrIBody);
|
|
|
|
for (i=0; i<w*h; i++) {
|
|
tempUC = (unsigned char)(ptr[i]);
|
|
tempUC1 = (unsigned char)(ptr1[i]);
|
|
tempUC2 = (unsigned char)(ptr2[i]);
|
|
#ifdef CHECK_THRESHOLDS
|
|
if (tempUC < min_value)
|
|
tempUC=min_value;
|
|
else if (tempUC > max_value)
|
|
tempUC=max_value;
|
|
if (tempUC1 < min_value)
|
|
tempUC1=min_value;
|
|
else if (tempUC1 > max_value)
|
|
tempUC1=max_value;
|
|
if (tempUC2 < min_value)
|
|
tempUC2=min_value;
|
|
else if (tempUC2 > max_value)
|
|
tempUC2=max_value;
|
|
#endif
|
|
*(ptrIBody++) = (int) ( (tempUC2<<16) + (tempUC1<<8) + tempUC );
|
|
}
|
|
(*env)->ReleaseIntArrayElements(env, jia, jiBody, 0);
|
|
|
|
} else { // 1 component 8 or 16 bpp image
|
|
ptr = image->comps[0].data;
|
|
printf("C: before transfering a %d bpp image to java (length = %d)\n",image->comps[0].prec ,w*h);
|
|
if (image->comps[0].prec<=8) {
|
|
fid = (*env)->GetFieldID(env, cls,"image8", "[B");
|
|
jba = (*env)->GetObjectField(env, obj, fid);
|
|
jbBody = (*env)->GetByteArrayElements(env, jba, 0);
|
|
ptrBBody = jbBody;
|
|
#ifdef CHECK_THRESHOLDS
|
|
if (image->comps[0].sgnd) {
|
|
min_value = -128;
|
|
max_value = 127;
|
|
} else {
|
|
min_value = 0;
|
|
max_value = 255;
|
|
}
|
|
#endif
|
|
//printf("C: transfering %d shorts to Java image8 pointer = %d\n", wr*hr,ptrSBody);
|
|
for (i=0; i<w*h; i++) {
|
|
tempUC = (unsigned char) (ptr[i]);
|
|
#ifdef CHECK_THRESHOLDS
|
|
if (tempUC<min_value)
|
|
tempUC = min_value;
|
|
else if (tempUC > max_value)
|
|
tempUC = max_value;
|
|
#endif
|
|
*(ptrBBody++) = tempUC;
|
|
}
|
|
(*env)->ReleaseByteArrayElements(env, jba, jbBody, 0);
|
|
printf("C: image8 transfered to Java\n");
|
|
} else {
|
|
fid = (*env)->GetFieldID(env, cls,"image16", "[S");
|
|
jsa = (*env)->GetObjectField(env, obj, fid);
|
|
jsBody = (*env)->GetShortArrayElements(env, jsa, 0);
|
|
ptrSBody = jsBody;
|
|
#ifdef CHECK_THRESHOLDS
|
|
if (image->comps[0].sgnd) {
|
|
min_value = -32768;
|
|
max_value = 32767;
|
|
} else {
|
|
min_value = 0;
|
|
max_value = 65535;
|
|
}
|
|
printf("C: minValue = %d, maxValue = %d\n", min_value, max_value);
|
|
#endif
|
|
printf("C: transfering %d shorts to Java image16 pointer = %d\n", w*h,ptrSBody);
|
|
for (i=0; i<w*h; i++) {
|
|
tempS = (short) (ptr[i]);
|
|
#ifdef CHECK_THRESHOLDS
|
|
if (tempS<min_value) {
|
|
printf("C: value %d truncated to %d\n", tempS, min_value);
|
|
tempS = min_value;
|
|
} else if (tempS > max_value) {
|
|
printf("C: value %d truncated to %d\n", tempS, max_value);
|
|
tempS = max_value;
|
|
}
|
|
#endif
|
|
*(ptrSBody++) = tempS;
|
|
}
|
|
(*env)->ReleaseShortArrayElements(env, jsa, jsBody, 0);
|
|
printf("C: image16 completely filled\n");
|
|
}
|
|
}
|
|
|
|
|
|
/* free remaining structures */
|
|
if(dinfo) {
|
|
opj_destroy_decompress(dinfo);
|
|
}
|
|
/* free image data structure */
|
|
opj_image_destroy(image);
|
|
|
|
}
|
|
return 1; /* OK */
|
|
}
|
|
//end main
|
|
|