Revision 23060

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trunk/libraries/libjni-potrace/src/main/java/org/gvsig/jpotrace/Potrace.java
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 */
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public class Potrace extends JNIBase {
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	private static native void vectorizeRasterNat(String filein, String fileout);
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	private static native void vectorizeBufferRasterNat(int[] filein, int width, int height, String fileout);
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	private static native double[] vectorizeBufferRasterNat(int[] filein, int width, int height);
28 28 

  		




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	/**


  		




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	 * Vectoriza un fichero pasado por parametro y lo guarda en fileOut


  		




  ......




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	 * @param fileOut


  		




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	 * @throws PotraceException


  		




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	 */


  		




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	public static void vectorizeBufferRaster(int[] bufferIn, int width, int height, String fileOut) throws PotraceException {


  		




  
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	public static double[] vectorizeBufferRaster(int[] bufferIn, int width, int height) throws PotraceException {


  		




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		if (bufferIn == null)


  		




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			throw new PotraceException("El nombre del driver es null");


  		




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		if (fileOut == null)


  		




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			throw new PotraceException("El nombre del driver es null");


  		




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		vectorizeBufferRasterNat(bufferIn, width, height, fileOut);


  		




  
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		return vectorizeBufferRasterNat(bufferIn, width, height);


  		




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	}


  		




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}


  		












  

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





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/**


  		




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 * Parte de jni para vectorizar un buffer


  		




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 */


  		




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


  		




  
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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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	int i;


  		




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	jint *cbufferIn;


  		




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	const char *outfile;


  		




  
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	double *values;


  		




  
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	jsize size;


  		




  
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	jdoubleArray jvalues;


  		




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


  		




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


  		




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


  		




  
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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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	vectorizarBuffer((long *) cbufferIn, width, height, outfile);


  		




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


  		




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


  		




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


  		




  
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	return jvalues;


  		




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}


  		












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