Revision 23284 trunk/libraries/libjni-potrace/src/main/native/jpotrace/potrace.c

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potrace.c
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/* gvSIG. Sistema de Informaci�n Geogr�fica de la Generalitat Valenciana
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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 *
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 * Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.
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 *
......
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#include "potrace_raster.h"
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/**


  		




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 * Parte de jni para vectorizar un fichero de disco


  		




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 */


  		




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JNIEXPORT void JNICALL Java_org_gvsig_jpotrace_Potrace_vectorizeRasterNat(JNIEnv *env, jclass clase, jstring filein, jstring fileout) {


  		




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	const char *infile;


  		




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	const char *outfile;


  		




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	printf("potrace.c: Java_org_gvsig_jpotrace_Potrace_vectorizeRasterNat\n");


  		




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	infile = (*env)->GetStringUTFChars(env, filein, 0);


  		




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	outfile = (*env)->GetStringUTFChars(env, fileout, 0);


  		




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	printf("potrace.c: Filein: %s\n", infile);


  		




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	printf("potrace.c: Fileout: %s\n", outfile);


  		




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	vectorizar(infile, outfile);


  		




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	(*env)->ReleaseStringUTFChars(env, filein, infile);


  		




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	(*env)->ReleaseStringUTFChars(env, fileout, outfile);


  		




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}


  		




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/**


  		




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 * Parte de jni para vectorizar un buffer


  		




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 */


  		




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JNIEXPORT jdoubleArray JNICALL Java_org_gvsig_jpotrace_Potrace_vectorizeBufferRasterNat(JNIEnv *env, jclass clase, jintArray bufferIn, jint width, jint height) {


  		




  
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JNIEXPORT jdoubleArray JNICALL Java_org_gvsig_jpotrace_Potrace_vectorizeBufferRasterNat(JNIEnv *env, jclass clase, jintArray bufferIn, jint width, jint height, jobjectArray array) {


  		




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	int i;


  		




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	jint *cbufferIn;


  		




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	double *values;


  		




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	cbufferIn = (*env)->GetIntArrayElements(env, bufferIn, NULL);


  		




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	values = vectorizarBuffer((long *) cbufferIn, width, height);


  		




  
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	jint length = (*env)->GetArrayLength(env, array);


  		




  
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	char **list = malloc(length * sizeof(char *));


  		




  
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	for (i = 0; i < length; i++) {


  		




  
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		jobject string = (*env)->GetObjectArrayElement(env, array, i);


  		




  
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		list[i] = (char *) (*env)->GetStringUTFChars(env, string, NULL);


  		




  
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	}


  		




  
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	values = vectorizarBuffer((long *) cbufferIn, width, height, length, list);


  		




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	size = (jsize) values[0];


  		




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	jvalues = (*env)->NewDoubleArray(env, size);


  		




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	(*env)->SetDoubleArrayRegion(env, jvalues, 0, size, values);


  		




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	(*env)->ReleaseIntArrayElements(env, bufferIn, cbufferIn, 0);


  		




  
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	free(values);


  		




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	for (i = 0; i < length; i++) {


  		




  
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		jobject string = (*env)->GetObjectArrayElement(env, array, i);


  		




  
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		(*env)->ReleaseStringUTFChars(env, string, list[i]);


  		




  
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	}


  		




  
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	free (list);


  		




  
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	return jvalues;


  		




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}


  		












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