Application: gvSIG desktop » gvSIG raster

 /**********************************************************************

 * $Id: mrsidimagereader.cpp 8460 2006-10-31 16:26:34Z nacho $

 *

 * Name:     mrsid_interfaz.c

 * Project:  JMRSID. Interfaz java to MrSID (Lizardtech).

 * Purpose:  dataset's Basic Funcions.

 * Author:   Nacho Brodin, brodin_ign@gva.es

 *

 **********************************************************************/

/* gvSIG. Sistema de Informaci�n Geogr�fica de la Generalitat Valenciana

*

* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

*

* This program is free software; you can redistribute it and/or

* modify it under the terms of the GNU General Public License

* as published by the Free Software Foundation; either version 2

* of the License, or (at your option) any later version.

*

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with this program; if not, write to the Free Software

* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

*

* For more information, contact:

*

*  Generalitat Valenciana

*   Conselleria d'Infraestructures i Transport

*   Av. Blasco Ib��ez, 50

*   46010 VALENCIA

*   SPAIN

*

*      +34 963862235

*   gvsig@gva.es

*      www.gvsig.gva.es

*

*    or

*

*   IVER T.I. S.A

*   Salamanca 50

*   46005 Valencia

*   Spain

*

*   +34 963163400

*   dac@iver.es

* 

* [01] 01-Oct-2005 nbt MrSIDImageReaderArrayNat function to support name parameter in char array

*/

#include <jni.h>

#include <stdlib.h>

#include "es_gva_cit_jmrsid_MrSIDImageReader.h"

#include "es_gva_cit_jmrsid_JNIBase.h"

#include "lt_fileSpec.h"

#include "MrSIDImageReader.h"

LT_USE_NAMESPACE(LizardTech);

/******************************************************************************/

//                                                 Constructor MrSIDImageReader

/******************************************************************************/

JNIEXPORT jlong JNICALL Java_es_gva_cit_jmrsid_MrSIDImageReader_MrSIDImageReaderNat

  (JNIEnv *env, jobject obj, jstring pszF){

          const char *pszFilename;

          MrSIDImageReader     *poImageReader;

          jlong jresult = 0 ;

          FILE *fich;

          pszFilename = env->GetStringUTFChars(pszF, 0);

        fich=fopen( pszFilename, "r" );

        if( fich )

                fclose(fich);

        else

           {

              fclose(fich);

              return -1;

           }

          const LTFileSpec fileSpec(pszFilename);

          poImageReader = MrSIDImageReader::create();

    poImageReader->initialize(fileSpec);

          //poImageReader = new MrSIDImageReader( fileSpec );

          //*(LTIImageReader **)&jresult = poImageReader;

          *(MrSIDImageReader **)&jresult = poImageReader;

    env->ReleaseStringUTFChars(pszF, pszFilename);

          if(poImageReader==NULL)return -1; 

          else return jresult; 

  }

/******************************************************************************/

//                                                 Constructor MrSIDImageArrayReader

/******************************************************************************/

JNIEXPORT jlong JNICALL Java_es_gva_cit_jmrsid_MrSIDImageReader_MrSIDImageReaderArrayNat

  (JNIEnv *env, jobject obj, jbyteArray pszF){

        jbyte *aux = NULL;

          jbyte *pszFilename;

          MrSIDImageReader     *poImageReader;

          jlong jresult = 0 ;

          FILE *fich;

          int longitud = 0;

          longitud = env->GetArrayLength(pszF); 

          pszFilename = (jbyte *)env->GetByteArrayElements(pszF, 0); 

        aux = (jbyte *)malloc(sizeof(jbyte) * (longitud + 1));

          memcpy(aux, pszFilename, longitud);

        env->ReleaseByteArrayElements(pszF, (jbyte *)pszFilename, 0);

          pszFilename = aux;

        pszFilename[longitud] = '\0';

        fich=fopen( (char *)pszFilename, "r" );

        if( fich )

                fclose(fich);

        else

              return -1;

          const LTFileSpec fileSpec((char *)pszFilename);

          poImageReader = MrSIDImageReader::create();

    poImageReader->initialize(fileSpec);

          *(MrSIDImageReader **)&jresult = poImageReader;

    free(pszFilename);

          if(poImageReader==NULL)

                  return -1; 

          else 

                  return jresult; 

  }

/******************************************************************************/

//                                                                 getNumLevels

/******************************************************************************/

JNIEXPORT jint JNICALL Java_es_gva_cit_jmrsid_JNIBase_getNumLevelsNat

  (JNIEnv *env, jobject obj, jlong cPtr){

          MrSIDImageReader *img  = (MrSIDImageReader *) 0 ;

          int res = -1;

    img = *(MrSIDImageReader **)&cPtr;

    if(img!=NULL)

                res = img->getNumLevels();

    return res;

  }

/******************************************************************************/

//                                                                 ~MrSIDImageReader

/******************************************************************************/

JNIEXPORT void JNICALL Java_es_gva_cit_jmrsid_MrSIDImageReader_FreeMrSIDImageReaderNat

  (JNIEnv *env, jobject obj, jlong cPtr){

          /*MrSIDImageReader *reader = (MrSIDImageReader *) 0 ;

          reader = *(MrSIDImageReader **)&cPtr;

          if(reader!=NULL){

                  delete reader;

          }*/

  }