Application: gvSIG desktop » gvSIG raster

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

 * $Id: ncsecwcompressclient_wrapper.c 4274 2006-03-06 07:32:00Z nacho $

 *

 * Name:     bsb_interfaz.c

 * Project:  JGDAL. Interface java to gdal (Frank Warmerdam).

 * Purpose:  Interface functions to manage bsb files. This include gdal

 *                         code but it doesn't use the gdal API.

 * 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

*/

#include <jni.h>

#include <string.h>

#include <malloc.h>

#include "NCSECWCompressClient.h"

typedef struct ReadInfo {

        //NCSFileView         *pNCSFileView;

        UINT8                         **ppInputBandBufferArray;

        UINT32                         nPercentComplete;

        jclass                        clase;

        jobject                        *jclient;

        jobject                        *jreadcall;

        JNIEnv                         *env;

        char                         pErrorBuffer[1024];

} ReadInfo;

static BOOLEAN         callBackOn = TRUE;

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

//                                                                ReadCallback

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

static BOOLEAN ReadCallback(NCSEcwCompressClient *pClient,

                                                        UINT32 nNextLine,

                                                        IEEE4 **ppOutputBandBufferArray)

{

        ReadInfo *pReadInfo = (ReadInfo *)pClient->pClientData;

        UINT32 nBand;

        jfieldID fid;

        jbyteArray jarray;

        JNIEnv *env=pReadInfo->env;

        int longitud;

        jclass clase_client;

        jclass clase_readcall;

        jmethodID metodo;

    if(callBackOn){

                clase_client = (*env)->GetObjectClass(env, *(pReadInfo->jclient));

                clase_readcall = (*env)->GetObjectClass(env, *(pReadInfo->jreadcall));

                //Ponemos el valor de la banda un n?mero de l?nea en el objeto cliente                

                  fid = (*env)->GetFieldID(env, clase_readcall, "nNextLine", "I");

                  (*env)->SetIntField(env, *(pReadInfo->jreadcall), fid, nNextLine); 

                   //Ejecutamos la funci?n de java que carga el buffer

                metodo = (*env)->GetMethodID(env, clase_readcall, "loadBuffer", "()V");

                (*env)->CallVoidMethod(env, *(pReadInfo->jreadcall), metodo);

                //Obtenemos el array de bytes desde java

                fid = (*env)->GetFieldID(env, clase_client, "buffer", "[B");

            jarray =(jbyteArray)(*env)->GetObjectField(env, *(pReadInfo->jclient), fid);  

            longitud = (*env)->GetArrayLength(env, jarray);

            (*env)->GetByteArrayRegion(env,jarray,0,longitud,(jbyte *)pReadInfo->ppInputBandBufferArray[0]);

                for(nBand = 0; nBand < pClient->nInputBands; nBand++) {

                        UINT32 nCell;                

                        UINT8 *pInputValue = pReadInfo->ppInputBandBufferArray[nBand];

                        IEEE4 *pOutputValue = ppOutputBandBufferArray[nBand];

                        // Compression needs input to be IEEE4

                        for (nCell = 0; nCell < pClient->nInOutSizeX; nCell++) {

                                *pOutputValue++ = (IEEE4)*pInputValue++;

                        }

                }

                return(TRUE);        

    }else {

        callBackOn = TRUE;

            return(FALSE);

    }

}

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

//                                                                StatusCallback

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

//Asigna el tanto por cien de imagen que lleva comprimido en una variable de java

//Ejecuta la funci?n updatePercent de java despues de actualizar la varible.

static void StatusCallback(NCSEcwCompressClient *pClient,

                                                   UINT32 nCurrentLine)

{

        ReadInfo         *pReadInfo = (ReadInfo *)pClient->pClientData;

        UINT32                 nPercentComplete = (nCurrentLine * 100) / (pClient->nInOutSizeY - 1);

        jclass                 clase_client;

        jclass                 clase_readcall;

        JNIEnv                 *env=pReadInfo->env;

        jfieldID         fid;

        jmethodID         metodo;

        clase_client = (*env)->GetObjectClass(env, *(pReadInfo->jclient));

        clase_readcall = (*env)->GetObjectClass(env, *(pReadInfo->jreadcall));

        if (nPercentComplete != pReadInfo->nPercentComplete) {

                fid = (*env)->GetFieldID(env, clase_client, "porcentaje", "I");

                  (*env)->SetIntField(env, *(pReadInfo->jclient), fid, nPercentComplete);

                  metodo = (*env)->GetMethodID(env, clase_readcall, "updatePercent", "()V");

                (*env)->CallVoidMethod(env, *(pReadInfo->jreadcall), metodo); 

                pReadInfo->nPercentComplete = nPercentComplete;

        }

}

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

//                                                                NCSEcwCompressClient

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

JNIEXPORT jlong JNICALL Java_es_gva_cit_jecwcompress_NCSEcwCompressClient_NCSEcwCompressClientNat

  (JNIEnv *env, jobject obj){

          NCSEcwCompressClient         *pClient;

          jlong                                         jresult = 0 ;

          if(pClient = NCSEcwCompressAllocClient()){

                  *(NCSEcwCompressClient **)&jresult = pClient;

                  return jresult;

          }else

                  return -1;

  }

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

//                                                                NCSEcwCompressOpen

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

JNIEXPORT jint JNICALL Java_es_gva_cit_jecwcompress_NCSEcwCompressClient_NCSEcwCompressOpenNat

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

          NCSEcwCompressClient         *pClient = (NCSEcwCompressClient *) 0 ;

          NCSError                                 eError;

          jfieldID                                 fid;

    jobject                                        obj_str;

    const char                                *str;

    ReadInfo                                 *compress_readInfo;

    jmethodID                                 metodo;

    UINT8 *pReadBuffer,nBand;

          pClient = *(NCSEcwCompressClient **)&cPtr;

          if(pClient!=NULL){

                  //Asignamos los valores de los campos de NCSEcwCompress

                  jclass clase = (*env)->GetObjectClass(env, obj);

                  fid = (*env)->GetFieldID(env, clase, "inputFilename", "Ljava/lang/String;");

                  obj_str = (*env)->GetObjectField(env, obj, fid);

                  if(obj_str!=NULL){

                        str = (*env)->GetStringUTFChars(env,obj_str,0);

                          strcpy(pClient->szInputFilename,str);

                          str=NULL;

                          (*env)->ReleaseStringUTFChars(env, obj_str, str);

                          //printf("inputFilename=%s\n",pClient->szInputFilename);

                  }

                  fid = (*env)->GetFieldID(env, clase, "outputFilename", "Ljava/lang/String;");

                  obj_str = (*env)->GetObjectField(env, obj, fid);

                  if(obj_str!=NULL){

                        str = (*env)->GetStringUTFChars(env,obj_str,0);

                          strcpy(pClient->szOutputFilename,str);

                          str=NULL;

                          (*env)->ReleaseStringUTFChars(env, obj_str, str);

                          //printf("outputFilename=%s\n",pClient->szOutputFilename);

                  }

                  fid = (*env)->GetFieldID(env, clase, "targetCompression", "D");

                  pClient->fTargetCompression = (IEEE4)(*env)->GetDoubleField(env, obj, fid);

                  //printf("targetCompression=%f\n",pClient->fTargetCompression);

                  fid = (*env)->GetFieldID(env, clase, "eCompressFormat", "I");

                  pClient->eCompressFormat = (*env)->GetIntField(env, obj, fid);

                  //printf("eCompressFormat=%d\n",pClient->eCompressFormat);

                  fid = (*env)->GetFieldID(env, clase, "eCompressHint", "I");

                  pClient->eCompressHint = (*env)->GetIntField(env, obj, fid);

                  //printf("eCompressHint=%d\n",pClient->eCompressHint);

                  fid = (*env)->GetFieldID(env, clase, "nBlockSizeX", "I");

                  pClient->nBlockSizeX = (*env)->GetIntField(env, obj, fid);

                  //printf("nBlockSizeX=%d\n",pClient->nBlockSizeX);

                  fid = (*env)->GetFieldID(env, clase, "nBlockSizeY", "I");

                  pClient->nBlockSizeY = (*env)->GetIntField(env, obj, fid);

                  //printf("nBlockSizeY=%d\n",pClient->nBlockSizeY);

                  fid = (*env)->GetFieldID(env, clase, "nInOutSizeX", "I");

                  pClient->nInOutSizeX = (*env)->GetIntField(env, obj, fid);

                  //printf("nInOutSizeX=%d\n",pClient->nInOutSizeX);

                  fid = (*env)->GetFieldID(env, clase, "nInOutSizeY", "I");

                  pClient->nInOutSizeY = (*env)->GetIntField(env, obj, fid);

                  //printf("nInOutSizeY=%d\n",pClient->nInOutSizeY);

                  fid = (*env)->GetFieldID(env, clase, "nInputBands", "I");

                  pClient->nInputBands = (*env)->GetIntField(env, obj, fid);

                  //printf("nInputBands=%d\n",pClient->nInputBands);

                  fid = (*env)->GetFieldID(env, clase, "nOutputBands", "I");

                  pClient->nOutputBands = (*env)->GetIntField(env, obj, fid);

                //printf("nOutputBands=%d\n",pClient->nOutputBands);

                  fid = (*env)->GetFieldID(env, clase, "nInputSize", "J");

                  pClient->nInputSize = (*env)->GetLongField(env, obj, fid);

                  //printf("nInputSize=%ld\n",pClient->nInputSize);

                  fid = (*env)->GetFieldID(env, clase, "fCellIncrementX", "D");

                  pClient->fCellIncrementX = (*env)->GetDoubleField(env, obj, fid);

                  //printf("fCellIncrementX=%f\n",pClient->fCellIncrementX);

                  fid = (*env)->GetFieldID(env, clase, "fCellIncrementY", "D");

                  pClient->fCellIncrementY = (*env)->GetDoubleField(env, obj, fid);

                  //printf("fCellIncrementY=%f\n",pClient->fCellIncrementY);

                  fid = (*env)->GetFieldID(env, clase, "fOriginX", "D");

                  pClient->fOriginX = (*env)->GetDoubleField(env, obj, fid);

                  //printf("fOriginX=%f\n",pClient->fOriginX);

                  fid = (*env)->GetFieldID(env, clase, "fOriginY", "D");

                  pClient->fOriginY = (*env)->GetDoubleField(env, obj, fid);

                  //printf("fOriginY=%f\n",pClient->fOriginY);

                  fid = (*env)->GetFieldID(env, clase, "eCellSizeUnits", "I");

                  pClient->fActualCompression = (IEEE4)(*env)->GetIntField(env, obj, fid);

                  //printf("eCellSizeUnits=%d\n",pClient->fActualCompression);

                  fid = (*env)->GetFieldID(env, clase, "szDatum", "Ljava/lang/String;");

                  obj_str = (*env)->GetObjectField(env, obj, fid);

                  if(obj_str!=NULL){

                        str = (*env)->GetStringUTFChars(env,obj_str,0);

                          strcpy(pClient->szDatum,str);

                          str=NULL;

                          (*env)->ReleaseStringUTFChars(env, obj_str, str);

                          //printf("szDatum=%s\n",pClient->szDatum);

                  }

                  fid = (*env)->GetFieldID(env, clase, "szProjection", "Ljava/lang/String;");

                  obj_str = (*env)->GetObjectField(env, obj, fid);

                  if(obj_str!=NULL){

                        str = (*env)->GetStringUTFChars(env,obj_str,0);

                          strcpy(pClient->szProjection,str);

                          str=NULL;

                          (*env)->ReleaseStringUTFChars(env, obj_str, str);

                          //printf("szProjection=%s\n",pClient->szProjection);

                  }

                  fid = (*env)->GetFieldID(env, clase, "fActualCompression", "D");

                  pClient->fActualCompression = (IEEE4)(*env)->GetDoubleField(env, obj, fid);

                  //printf("fActualCompression=%f\n",pClient->fActualCompression);

                  fid = (*env)->GetFieldID(env, clase, "fCompressionSeconds", "D");

                  pClient->fCompressionSeconds = (*env)->GetDoubleField(env, obj, fid);

                  //printf("fCompressionSeconds=%f\n",pClient->fCompressionSeconds);

                  fid = (*env)->GetFieldID(env, clase, "fCompressionMBSec", "D");

                  pClient->fCompressionMBSec = (*env)->GetDoubleField(env, obj, fid);

                  //printf("fCompressionMBSec=%f\n",pClient->fCompressionMBSec);

                  fid = (*env)->GetFieldID(env, clase, "nOutputSize", "J");

                  pClient->nOutputSize = (*env)->GetLongField(env, obj, fid);

                  //printf("nOutputSize=%ld\n",pClient->nOutputSize);

                  pClient->pReadCallback = ReadCallback;

                pClient->pStatusCallback = StatusCallback;

                //Inicializar el buffer que tendr? una l?nea de entrada x el n?m de bandas

                metodo = (*env)->GetMethodID(env, clase, "initialize", "()V");

                (*env)->CallIntMethod(env,obj,metodo);

                compress_readInfo = (ReadInfo *)malloc(sizeof(ReadInfo));

                pReadBuffer = (UINT8 *)malloc(sizeof(UINT8) *

                                                                  pClient->nInOutSizeX *

                                                                  pClient->nInputBands);

                compress_readInfo->ppInputBandBufferArray = (UINT8 **)malloc(sizeof(UINT8 *) *

                                                                   pClient->nInputBands);

                for (nBand = 0; nBand < pClient->nInputBands; nBand++) {

                        compress_readInfo->ppInputBandBufferArray[nBand] = pReadBuffer + 

                        (nBand * pClient->nInOutSizeX * sizeof(UINT8));

                }

                if (compress_readInfo->ppInputBandBufferArray == NULL) return 46;

                compress_readInfo->nPercentComplete = 0;

                pClient->pClientData = (void *)compress_readInfo;

                  eError = NCSEcwCompressOpen(pClient, ((bCalculateSizesOnly==0)? FALSE : TRUE));

                return eError;

          }

          return -1;

  }

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

//                                                                NCSEcwCompress

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

JNIEXPORT jint JNICALL Java_es_gva_cit_jecwcompress_NCSEcwCompressClient_NCSEcwCompressNat

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

          NCSEcwCompressClient         *pClient = (NCSEcwCompressClient *) 0 ;

          ReadInfo                                 *compress_readInfo = (ReadInfo *) 0 ;

          NCSError                                 eError;

        pClient = *(NCSEcwCompressClient **)&cPtr;

        compress_readInfo = (ReadInfo *)pClient->pClientData;

        compress_readInfo->jclient=&obj;

        compress_readInfo->jreadcall=&obj_read;

        compress_readInfo->env=env;        

        eError = NCSEcwCompress(pClient);

        return eError;          

  }

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

//                                                                NCSEcwCompressClose

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

JNIEXPORT jint JNICALL Java_es_gva_cit_jecwcompress_NCSEcwCompressClient_NCSEcwCompressCloseNat

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

          NCSEcwCompressClient         *pClient = (NCSEcwCompressClient *) 0 ;

          NCSError                                 eError;

        pClient = *(NCSEcwCompressClient **)&cPtr;        

        eError = NCSEcwCompressClose(pClient);

        return eError;          

  }  

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

//                                                                NCSEcwCompressCancel

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

JNIEXPORT void JNICALL Java_es_gva_cit_jecwcompress_NCSEcwCompressClient_NCSEcwCompressCancelNat

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

          callBackOn = FALSE;

  }

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

//                                                                finalize

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

JNIEXPORT void JNICALL Java_es_gva_cit_jecwcompress_NCSEcwCompressClient_finalizeNat

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

          ReadInfo                                 *compress_readInfo = (ReadInfo *) 0 ;

          NCSEcwCompressClient         *pClient = (NCSEcwCompressClient *) 0 ;

    int                                         nBand;        

        pClient = *(NCSEcwCompressClient **)&cPtr;        

          //Liberamos la memoria

          compress_readInfo = pClient->pClientData;

          for (nBand = 0; nBand < pClient->nInputBands; nBand++) {

                        free(compress_readInfo->ppInputBandBufferArray[nBand]);

        }

          free(compress_readInfo->ppInputBandBufferArray);

          free(pClient->pClientData);

          pClient->pClientData = NULL;

          NCSEcwCompressFreeClient(pClient);

  }