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152 lines (119 loc) · 4.74 KB
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#include "jni_helper.h"
BEGIN_EXTERN_C
#define ARRAY_FUNC(FUNC) AF_MANGLE(Array, FUNC)
JNIEXPORT void JNICALL ARRAY_FUNC(destroyArray)(JNIEnv *env, jclass clazz,
jlong ref) {
AF_CHECK_VOID(af_release_array(ARRAY(ref)));
}
JNIEXPORT jstring JNICALL ARRAY_FUNC(afToString)(JNIEnv *env, jclass clazz, jlong ref,
jstring name) {
char *res;
const char *str = env->GetStringUTFChars(name, 0);
af_array_to_string(&res, str, ARRAY(ref), 4, false);
env->ReleaseStringUTFChars(name, str);
return env->NewStringUTF(res);
}
JNIEXPORT jintArray JNICALL ARRAY_FUNC(getDims)(JNIEnv *env, jclass clazz,
jlong ref) {
jintArray result = env->NewIntArray(MaxDimSupported);
if (result == NULL) {
return NULL;
}
dim_t dims[4];
AF_CHECK(af_get_dims(dims + 0, dims + 1, dims + 2, dims + 3, ARRAY(ref)));
jint *dimsf = env->GetIntArrayElements(result, 0);
for (int k = 0; k < MaxDimSupported; ++k) {
dimsf[k] = dims[k];
}
env->ReleaseIntArrayElements(result, dimsf, 0);
return result;
}
JNIEXPORT jint JNICALL ARRAY_FUNC(getType)(JNIEnv *env, jclass clazz,
jlong ref) {
af_dtype ty = f32;
AF_CHECK(af_get_type(&ty, ARRAY(ref)));
return ty;
}
JNIEXPORT jlong JNICALL ARRAY_FUNC(createEmptyArray)(JNIEnv *env, jclass clazz,
jintArray dims, jint type) {
af_array ret = 0;
jint *dimptr = env->GetIntArrayElements(dims, 0);
dim_t tdims[4] = {dimptr[0], dimptr[1], dimptr[2], dimptr[3]};
env->ReleaseIntArrayElements(dims, dimptr, 0);
AF_CHECK(af_create_handle(&ret, 4, tdims, (af_dtype)(type)));
return JLONG(ret);
}
#define CREATE_DATA_T(Ty, ty, dty) \
JNIEXPORT jlong JNICALL ARRAY_FUNC(createArrayFrom##Ty)( \
JNIEnv * env, jclass clazz, jintArray dims, j##ty##Array elems) { \
af_array ret = 0; \
jint *dimptr = env->GetIntArrayElements(dims, 0); \
dim_t tdims[4] = {dimptr[0], dimptr[1], dimptr[2], dimptr[3]}; \
void *inptr = (void *)env->Get##Ty##ArrayElements(elems, 0); \
AF_CHECK(af_create_array(&ret, inptr, 4, tdims, dty)); \
env->ReleaseIntArrayElements(dims, dimptr, 0); \
env->Release##Ty##ArrayElements(elems, (j##ty *)inptr, 0); \
return JLONG(ret); \
}
CREATE_DATA_T(Float, float, f32);
CREATE_DATA_T(Double, double, f64);
CREATE_DATA_T(Int, int, s32);
CREATE_DATA_T(Boolean, boolean, b8);
#undef CREATE_DATA_T
JNIEXPORT jlong JNICALL ARRAY_FUNC(createArrayFromFloatComplex)(
JNIEnv *env, jclass clazz, jintArray dims, jobjectArray objs) {
af_array ret = 0;
jint *dimptr = env->GetIntArrayElements(dims, 0);
jint len = env->GetArrayLength(objs);
static jclass cls;
static jfieldID re, im;
static bool isfirst = true;
if (isfirst) {
cls = env->FindClass("com/arrayfire/FloatComplex");
re = env->GetFieldID(cls, "real", "F");
im = env->GetFieldID(cls, "imag", "F");
isfirst = false;
}
af_cfloat *tmp = (af_cfloat *)malloc(len * sizeof(af_cfloat));
for (int i = 0; i < len; i++) {
jobject obj = env->GetObjectArrayElement(objs, i);
jfloat real = env->GetFloatField(obj, re);
jfloat imag = env->GetFloatField(obj, im);
tmp[i].real = real;
tmp[i].imag = imag;
}
dim_t tdims[4] = {dimptr[0], dimptr[1], dimptr[2], dimptr[3]};
AF_CHECK(af_create_array(&ret, (void *)tmp, 4, tdims, c32));
free(tmp);
env->ReleaseIntArrayElements(dims, dimptr, 0);
return JLONG(ret);
}
JNIEXPORT jlong JNICALL ARRAY_FUNC(createArrayFromDoubleComplex)(
JNIEnv *env, jclass clazz, jintArray dims, jobjectArray objs) {
af_array ret = 0;
jint *dimptr = env->GetIntArrayElements(dims, 0);
jint len = env->GetArrayLength(objs);
static jclass cls;
static jfieldID re, im;
static bool isfirst = true;
if (isfirst) {
cls = env->FindClass("com/arrayfire/DoubleComplex");
re = env->GetFieldID(cls, "real", "D");
im = env->GetFieldID(cls, "imag", "D");
isfirst = false;
}
af_cdouble *tmp = (af_cdouble *)malloc(len * sizeof(af_cdouble));
for (int i = 0; i < len; i++) {
jobject obj = env->GetObjectArrayElement(objs, i);
jdouble real = env->GetDoubleField(obj, re);
jdouble imag = env->GetDoubleField(obj, im);
tmp[i].real = real;
tmp[i].imag = imag;
}
dim_t tdims[4] = {dimptr[0], dimptr[1], dimptr[2], dimptr[3]};
AF_CHECK(af_create_array(&ret, (void *)tmp, 4, tdims, c64));
free(tmp);
env->ReleaseIntArrayElements(dims, dimptr, 0);
return JLONG(ret);
}
END_EXTERN_C