JNIEXPORT jdouble JNICALL Java_com_starlab_component_processor_jni_JNIdissimilarity_nativeDissimilarity
(JNIEnv *env, jobject obj, jdoubleArray samples1, jdoubleArray samples2)
{
jboolean isCopy1;
jboolean isCopy2;
jdouble ret;
jdouble * inputSamples1;
jdouble * inputSamples2;
jsize len;
inputSamples1 = (*env)->GetDoubleArrayElements(env, samples1, &isCopy1);
inputSamples2 = (*env)->GetDoubleArrayElements(env, samples2, &isCopy2);
len = (*env)->GetArrayLength(env, samples1);
ret = Dissimilarity(inputSamples1, inputSamples2, len);
if (isCopy1 == JNI_TRUE)
{
(*env)->ReleaseDoubleArrayElements(env, samples1, inputSamples1, JNI_ABORT); // free without copy
}
if (isCopy2 == JNI_TRUE)
{
(*env)->ReleaseDoubleArrayElements(env, samples2, inputSamples2, JNI_ABORT); // free without copy
}
return ret;
}
/*
__declspec(dllexport) void Dissim2(double *x1, double *x2, double *res, long *nrow, long *ncol1, long *ncol2, long *coef) {
*/
void Dissim2(double *x1, double *x2, double *res, int *nrow, int *ncol1, int *ncol2, int *coef) {
int i, j;
int nn1, nn2;
for (i=0;i<*ncol1;i++) {
nn1 = i * (*nrow);
for (j=0;j<*ncol2;j++) {
nn2 = j * (*nrow);
res[i + (j * *ncol1) ] = Dissimilarity(x1+nn1, x2+nn2, *nrow, *coef);
}
}
}
void Dissim(double *x, double *res, int *nrow, int *ncol, int *coef) {
int i, j;
int nn, nnn;
for (i=0;i<*ncol;i++) {
nn = i * (*nrow);
for (j=i+1;j<*ncol;j++) {
nnn = j * (*nrow);
res[(i * *ncol) + j] = res[(j * *ncol) + i] = Dissimilarity(x+nn, x+nnn, *nrow, *coef);
}
}
}