diff options
| author | Francois-Olivier Devaux <fodevaux@users.noreply.github.com> | 2007-12-10 13:16:01 +0000 |
|---|---|---|
| committer | Francois-Olivier Devaux <fodevaux@users.noreply.github.com> | 2007-12-10 13:16:01 +0000 |
| commit | 26606c71c8a5c3a79f9e371e1c0ddfcb800b77df (patch) | |
| tree | a44d6c989e1e143b8420b737b0aa46745bcdca34 /JavaOpenJPEG/JavaOpenJPEGDecoder.c | |
| parent | e06bcd027f860f2d62c5419dab14a975eecae7c9 (diff) | |
First import of JAVAOpenJPEG, a Java wrapper of OpenJPEG, developed by Patrick Piscaglia of Telemis (www.telemis.com). Thank you Patrick for this new module !
Diffstat (limited to 'JavaOpenJPEG/JavaOpenJPEGDecoder.c')
| -rw-r--r-- | JavaOpenJPEG/JavaOpenJPEGDecoder.c | 897 |
1 files changed, 897 insertions, 0 deletions
diff --git a/JavaOpenJPEG/JavaOpenJPEGDecoder.c b/JavaOpenJPEG/JavaOpenJPEGDecoder.c new file mode 100644 index 00000000..a33fe9db --- /dev/null +++ b/JavaOpenJPEG/JavaOpenJPEGDecoder.c @@ -0,0 +1,897 @@ +/*
+ * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
+ * Copyright (c) 2002-2007, Professor Benoit Macq
+ * Copyright (c) 2001-2003, David Janssens
+ * Copyright (c) 2002-2003, Yannick Verschueren
+ * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
+ * Copyright (c) 2005, Herve Drolon, FreeImage Team
+ * Copyright (c) 2006-2007, Parvatha Elangovan
+ * Copyright (c) 2007, Patrick Piscaglia (Telemis)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <jni.h>
+#include <math.h>
+
+#include "openjpeg.h"
+#include "compat/getopt.h"
+#include "convert.h"
+#include "dirent.h"
+#include "org_openJpeg_OpenJPEGJavaDecoder.h"
+
+#ifndef WIN32
+#define stricmp strcasecmp
+#define strnicmp strncasecmp
+#endif
+
+/* ----------------------------------------------------------------------- */
+
+#define J2K_CFMT 0
+#define JP2_CFMT 1
+#define JPT_CFMT 2
+
+#define PXM_DFMT 10
+#define PGX_DFMT 11
+#define BMP_DFMT 12
+#define YUV_DFMT 13
+#define TIF_DFMT 14
+#define RAW_DFMT 15
+#define TGA_DFMT 16
+
+/* ----------------------------------------------------------------------- */
+
+typedef struct callback_variables {
+ JNIEnv *env;
+ /** 'jclass' object used to call a Java method from the C */
+ jobject *jobj;
+ /** 'jclass' object used to call a Java method from the C */
+ jmethodID message_mid;
+ jmethodID error_mid;
+} callback_variables_t;
+
+typedef struct dircnt{
+ /** Buffer for holding images read from Directory*/
+ char *filename_buf;
+ /** Pointer to the buffer*/
+ char **filename;
+}dircnt_t;
+
+
+typedef struct img_folder{
+ /** The directory path of the folder containing input images*/
+ char *imgdirpath;
+ /** Output format*/
+ char *out_format;
+ /** Enable option*/
+ char set_imgdir;
+ /** Enable Cod Format for output*/
+ char set_out_format;
+
+}img_fol_t;
+
+
+void decode_help_display() {
+ fprintf(stdout,"HELP\n----\n\n");
+ fprintf(stdout,"- the -h option displays this help information on screen\n\n");
+
+/* UniPG>> */
+ fprintf(stdout,"List of parameters for the JPEG 2000 "
+#ifdef USE_JPWL
+ "+ JPWL "
+#endif /* USE_JPWL */
+ "decoder:\n");
+/* <<UniPG */
+ fprintf(stdout,"\n");
+ fprintf(stdout,"\n");
+ fprintf(stdout," -ImgDir \n");
+ fprintf(stdout," Image file Directory path \n");
+ fprintf(stdout," -OutFor \n");
+ fprintf(stdout," REQUIRED only if -ImgDir is used\n");
+ fprintf(stdout," Need to specify only format without filename <BMP> \n");
+ fprintf(stdout," Currently accepts PGM, PPM, PNM, PGX, BMP format\n");
+ fprintf(stdout," -i <compressed file>\n");
+ fprintf(stdout," REQUIRED only if an Input image directory not specified\n");
+ fprintf(stdout," Currently accepts J2K-files, JP2-files and JPT-files. The file type\n");
+ fprintf(stdout," is identified based on its suffix.\n");
+ fprintf(stdout," -o <decompressed file>\n");
+ fprintf(stdout," REQUIRED\n");
+ fprintf(stdout," Currently accepts PGM-files, PPM-files, PNM-files, PGX-files and\n");
+ fprintf(stdout," BMP-files. Binary data is written to the file (not ascii). If a PGX\n");
+ fprintf(stdout," filename is given, there will be as many output files as there are\n");
+ fprintf(stdout," components: an indice starting from 0 will then be appended to the\n");
+ fprintf(stdout," output filename, just before the \"pgx\" extension. If a PGM filename\n");
+ fprintf(stdout," is given and there are more than one component, only the first component\n");
+ fprintf(stdout," will be written to the file.\n");
+ fprintf(stdout," -r <reduce factor>\n");
+ fprintf(stdout," Set the number of highest resolution levels to be discarded. The\n");
+ fprintf(stdout," image resolution is effectively divided by 2 to the power of the\n");
+ fprintf(stdout," number of discarded levels. The reduce factor is limited by the\n");
+ fprintf(stdout," smallest total number of decomposition levels among tiles.\n");
+ fprintf(stdout," -l <number of quality layers to decode>\n");
+ fprintf(stdout," Set the maximum number of quality layers to decode. If there are\n");
+ fprintf(stdout," less quality layers than the specified number, all the quality layers\n");
+ fprintf(stdout," are decoded.\n");
+/* UniPG>> */
+#ifdef USE_JPWL
+ fprintf(stdout," -W <options>\n");
+ fprintf(stdout," Activates the JPWL correction capability, if the codestream complies.\n");
+ fprintf(stdout," Options can be a comma separated list of <param=val> tokens:\n");
+ fprintf(stdout," c, c=numcomps\n");
+ fprintf(stdout," numcomps is the number of expected components in the codestream\n");
+ fprintf(stdout," (search of first EPB rely upon this, default is %d)\n", JPWL_EXPECTED_COMPONENTS);
+#endif /* USE_JPWL */
+/* <<UniPG */
+ fprintf(stdout,"\n");
+}
+
+/* -------------------------------------------------------------------------- */
+
+int get_num_images(char *imgdirpath){
+ DIR *dir;
+ struct dirent* content;
+ int num_images = 0;
+
+ /*Reading the input images from given input directory*/
+
+ dir= opendir(imgdirpath);
+ if(!dir){
+ fprintf(stderr,"Could not open Folder %s\n",imgdirpath);
+ return 0;
+ }
+
+ while((content=readdir(dir))!=NULL){
+ if(strcmp(".",content->d_name)==0 || strcmp("..",content->d_name)==0 )
+ continue;
+ num_images++;
+ }
+ return num_images;
+}
+
+int load_images(dircnt_t *dirptr, char *imgdirpath){
+ DIR *dir;
+ struct dirent* content;
+ int i = 0;
+
+ /*Reading the input images from given input directory*/
+
+ dir= opendir(imgdirpath);
+ if(!dir){
+ fprintf(stderr,"Could not open Folder %s\n",imgdirpath);
+ return 1;
+ }else {
+ fprintf(stderr,"Folder opened successfully\n");
+ }
+
+ while((content=readdir(dir))!=NULL){
+ if(strcmp(".",content->d_name)==0 || strcmp("..",content->d_name)==0 )
+ continue;
+
+ strcpy(dirptr->filename[i],content->d_name);
+ i++;
+ }
+ return 0;
+}
+
+int get_file_format(char *filename) {
+ unsigned int i;
+ static const char *extension[] = {"pgx", "pnm", "pgm", "ppm", "bmp","tif", "raw", "tga", "j2k", "jp2", "jpt", "j2c" };
+ 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 };
+ char * ext = strrchr(filename, '.');
+ if (ext == NULL)
+ return -1;
+ ext++;
+ if(ext) {
+ for(i = 0; i < sizeof(format)/sizeof(*format); i++) {
+ if(strnicmp(ext, extension[i], 3) == 0) {
+ return format[i];
+ }
+ }
+ }
+
+ return -1;
+}
+
+
+/* -------------------------------------------------------------------------- */
+
+int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters,img_fol_t *img_fol) {
+ /* parse the command line */
+ int totlen;
+ option_t long_option[]={
+ {"ImgDir",REQ_ARG, NULL ,'y'},
+ {"OutFor",REQ_ARG, NULL ,'O'},
+ };
+
+/* UniPG>> */
+ const char optlist[] = "i:o:r:l:hx:"
+
+#ifdef USE_JPWL
+ "W:"
+#endif /* USE_JPWL */
+ ;
+ /*for (i=0; i<argc; i++) {
+ printf("[%s]",argv[i]);
+ }
+ printf("\n");*/
+
+/* <<UniPG */
+ totlen=sizeof(long_option);
+ img_fol->set_out_format = 0;
+ reset_options_reading();
+
+ while (1) {
+ int c = getopt_long(argc, argv,optlist,long_option,totlen);
+ if (c == -1)
+ break;
+ switch (c) {
+ case 'i': /* input file */
+ {
+ char *infile = optarg;
+ parameters->decod_format = get_file_format(infile);
+ switch(parameters->decod_format) {
+ case J2K_CFMT:
+ case JP2_CFMT:
+ case JPT_CFMT:
+ break;
+ default:
+ fprintf(stderr,
+ "!! Unrecognized format for infile : %s [accept only *.j2k, *.jp2, *.jpc or *.jpt] !!\n\n",
+ infile);
+ return 1;
+ }
+ strncpy(parameters->infile, infile, sizeof(parameters->infile)-1);
+ }
+ break;
+
+ /* ----------------------------------------------------- */
+
+ case 'o': /* output file */
+ {
+ char *outfile = optarg;
+ parameters->cod_format = get_file_format(outfile);
+ switch(parameters->cod_format) {
+ case PGX_DFMT:
+ case PXM_DFMT:
+ case BMP_DFMT:
+ case TIF_DFMT:
+ case RAW_DFMT:
+ case TGA_DFMT:
+ break;
+ default:
+ fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga]!! \n", outfile);
+ return 1;
+ }
+ strncpy(parameters->outfile, outfile, sizeof(parameters->outfile)-1);
+ }
+ break;
+
+ /* ----------------------------------------------------- */
+
+ case 'O': /* output format */
+ {
+ char outformat[50];
+ char *of = optarg;
+ sprintf(outformat,".%s",of);
+ img_fol->set_out_format = 1;
+ parameters->cod_format = get_file_format(outformat);
+ switch(parameters->cod_format) {
+ case PGX_DFMT:
+ img_fol->out_format = "pgx";
+ break;
+ case PXM_DFMT:
+ img_fol->out_format = "ppm";
+ break;
+ case BMP_DFMT:
+ img_fol->out_format = "bmp";
+ break;
+ case TIF_DFMT:
+ img_fol->out_format = "tif";
+ break;
+ case RAW_DFMT:
+ img_fol->out_format = "raw";
+ break;
+ case TGA_DFMT:
+ img_fol->out_format = "raw";
+ break;
+ default:
+ fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga]!! \n", outformat);
+ return 1;
+ break;
+ }
+ }
+ break;
+
+ /* ----------------------------------------------------- */
+
+
+ case 'r': /* reduce option */
+ {
+ sscanf(optarg, "%d", ¶meters->cp_reduce);
+ }
+ break;
+
+ /* ----------------------------------------------------- */
+
+
+ case 'l': /* layering option */
+ {
+ sscanf(optarg, "%d", ¶meters->cp_layer);
+ }
+ break;
+
+ /* ----------------------------------------------------- */
+
+ case 'h': /* display an help description */
+ decode_help_display();
+ return 1;
+
+ /* ------------------------------------------------------ */
+
+ case 'y': /* Image Directory path */
+ {
+ img_fol->imgdirpath = (char*)malloc(strlen(optarg) + 1);
+ strcpy(img_fol->imgdirpath,optarg);
+ img_fol->set_imgdir=1;
+ }
+ break;
+ /* ----------------------------------------------------- */
+/* UniPG>> */
+#ifdef USE_JPWL
+
+ case 'W': /* activate JPWL correction */
+ {
+ char *token = NULL;
+
+ token = strtok(optarg, ",");
+ while(token != NULL) {
+
+ /* search expected number of components */
+ if (*token == 'c') {
+
+ static int compno;
+
+ compno = JPWL_EXPECTED_COMPONENTS; /* predefined no. of components */
+
+ if(sscanf(token, "c=%d", &compno) == 1) {
+ /* Specified */
+ if ((compno < 1) || (compno > 256)) {
+ fprintf(stderr, "ERROR -> invalid number of components c = %d\n", compno);
+ return 1;
+ }
+ parameters->jpwl_exp_comps = compno;
+
+ } else if (!strcmp(token, "c")) {
+ /* default */
+ parameters->jpwl_exp_comps = compno; /* auto for default size */
+
+ } else {
+ fprintf(stderr, "ERROR -> invalid components specified = %s\n", token);
+ return 1;
+ };
+ }
+
+ /* search maximum number of tiles */
+ if (*token == 't') {
+
+ static int tileno;
+
+ tileno = JPWL_MAXIMUM_TILES; /* maximum no. of tiles */
+
+ if(sscanf(token, "t=%d", &tileno) == 1) {
+ /* Specified */
+ if ((tileno < 1) || (tileno > JPWL_MAXIMUM_TILES)) {
+ fprintf(stderr, "ERROR -> invalid number of tiles t = %d\n", tileno);
+ return 1;
+ }
+ parameters->jpwl_max_tiles = tileno;
+
+ } else if (!strcmp(token, "t")) {
+ /* default */
+ parameters->jpwl_max_tiles = tileno; /* auto for default size */
+
+ } else {
+ fprintf(stderr, "ERROR -> invalid tiles specified = %s\n", token);
+ return 1;
+ };
+ }
+
+ /* next token or bust */
+ token = strtok(NULL, ",");
+ };
+ parameters->jpwl_correct = true;
+ fprintf(stdout, "JPWL correction capability activated\n");
+ fprintf(stdout, "- expecting %d components\n", parameters->jpwl_exp_comps);
+ }
+ break;
+#endif /* USE_JPWL */
+/* <<UniPG */
+
+ /* ----------------------------------------------------- */
+
+ default:
+ fprintf(stderr,"WARNING -> this option is not valid \"-%c %s\"\n",c, optarg);
+ break;
+ }
+ }
+
+ /* No check for possible errors before the -i and -o options are of course not mandatory*/
+
+ return 0;
+}
+
+/* -------------------------------------------------------------------------- */
+
+/**
+error callback returning the message to Java andexpecting a callback_variables_t client object
+*/
+void error_callback(const char *msg, void *client_data) {
+ callback_variables_t* vars = (callback_variables_t*) client_data;
+ JNIEnv *env = vars->env;
+ jstring jbuffer;
+
+ jbuffer = (*env)->NewStringUTF(env, msg);
+ (*env)->ExceptionClear(env);
+ (*env)->CallVoidMethod(env, *(vars->jobj), vars->error_mid, jbuffer);
+
+ if ((*env)->ExceptionOccurred(env)) {
+ fprintf(stderr,"C: Exception during call back method\n");
+ (*env)->ExceptionDescribe(env);
+ (*env)->ExceptionClear(env);
+ }
+ (*env)->DeleteLocalRef(env, jbuffer);
+}
+/**
+warning callback returning the message to Java andexpecting a callback_variables_t client object
+*/
+void warning_callback(const char *msg, void *client_data) {
+ callback_variables_t* vars = (callback_variables_t*) client_data;
+ JNIEnv *env = vars->env;
+ jstring jbuffer;
+
+ jbuffer = (*env)->NewStringUTF(env, msg);
+ (*env)->ExceptionClear(env);
+ (*env)->CallVoidMethod(env, *(vars->jobj), vars->message_mid, jbuffer);
+
+ if ((*env)->ExceptionOccurred(env)) {
+ fprintf(stderr,"C: Exception during call back method\n");
+ (*env)->ExceptionDescribe(env);
+ (*env)->ExceptionClear(env);
+ }
+ (*env)->DeleteLocalRef(env, jbuffer);
+}
+/**
+information callback returning the message to Java andexpecting a callback_variables_t client object
+*/
+void info_callback(const char *msg, void *client_data) {
+ callback_variables_t* vars = (callback_variables_t*) client_data;
+ JNIEnv *env = vars->env;
+ jstring jbuffer;
+
+ jbuffer = (*env)->NewStringUTF(env, msg);
+ (*env)->ExceptionClear(env);
+ (*env)->CallVoidMethod(env, *(vars->jobj), vars->message_mid, jbuffer);
+
+ if ((*env)->ExceptionOccurred(env)) {
+ fprintf(stderr,"C: Exception during call back method\n");
+ (*env)->ExceptionDescribe(env);
+ (*env)->ExceptionClear(env);
+ }
+ (*env)->DeleteLocalRef(env, jbuffer);
+}
+
+
+/* --------------------------------------------------------------------------
+ -------------------- MAIN METHOD, CALLED BY JAVA -----------------------*/
+JNIEXPORT jint JNICALL Java_org_openJpeg_OpenJPEGJavaDecoder_internalDecodeJ2KtoImage(JNIEnv *env, jobject obj, jobjectArray javaParameters) {
+ int argc; /* To simulate the command line parameters (taken from the javaParameters variable) and be able to re-use the */
+ char **argv; /* 'parse_cmdline_decoder' method taken from the j2k_to_image project */
+ opj_dparameters_t parameters; /* decompression parameters */
+ img_fol_t img_fol;
+ opj_event_mgr_t event_mgr; /* event manager */
+ opj_image_t *image = NULL;
+ FILE *fsrc = NULL;
+ unsigned char *src = NULL;
+ int file_length;
+ int num_images;
+ int i,j,imageno;
+ 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 = 0;
+ max_value = 255;
+ } else {
+ min_value = -128;
+ max_value = 127;
+ }
+#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 = 0;
+ max_value = 255;
+ } else {
+ min_value = -128;
+ max_value = 127;
+ }
+#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 = 0;
+ max_value = 65535;
+ } else {
+ min_value = -32768;
+ max_value = 32767;
+ }
+ 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
+
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