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openjpeg/JavaOpenJPEG/JavaOpenJPEGDecoder.c

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/*
* 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 "getopt.h"
#include "convert.h"
#include "dirent.h"
#include "org_openJpeg_OpenJPEGJavaDecoder.h"
#ifndef _WIN32
#define stricmp strcasecmp
#define strnicmp strncasecmp
#endif
#include "format_defs.h"
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", &parameters->cp_reduce);
}
break;
/* ----------------------------------------------------- */
case 'l': /* layering option */
{
sscanf(optarg, "%d", &parameters->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(&parameters);
parameters.decod_format = J2K_CFMT;
/* parse input and get user encoding parameters */
if(parse_cmdline_decoder(argc, argv, &parameters,&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, &parameters);
/* 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, &parameters);
/* 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, &parameters);
/* 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
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