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Merge pull request #67759 from TechnoPorg/jni-64-bit-arrays
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Improve support for 64-bit types on Android.
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akien-mga committed Dec 23, 2022
2 parents f064898 + df4597c commit 3822ba4
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Showing 2 changed files with 56 additions and 2 deletions.
23 changes: 22 additions & 1 deletion platform/android/api/jni_singleton.h
Original file line number Diff line number Diff line change
Expand Up @@ -137,6 +137,18 @@ class JNISingleton : public Object {
ret = sarr;
env->DeleteLocalRef(arr);
} break;
case Variant::PACKED_INT64_ARRAY: {
jlongArray arr = (jlongArray)env->CallObjectMethodA(instance, E->get().method, v);

int fCount = env->GetArrayLength(arr);
Vector<int64_t> sarr;
sarr.resize(fCount);

int64_t *w = sarr.ptrw();
env->GetLongArrayRegion(arr, 0, fCount, w);
ret = sarr;
env->DeleteLocalRef(arr);
} break;
case Variant::PACKED_FLOAT32_ARRAY: {
jfloatArray arr = (jfloatArray)env->CallObjectMethodA(instance, E->get().method, v);

Expand All @@ -149,9 +161,18 @@ class JNISingleton : public Object {
ret = sarr;
env->DeleteLocalRef(arr);
} break;
case Variant::PACKED_FLOAT64_ARRAY: {
jdoubleArray arr = (jdoubleArray)env->CallObjectMethodA(instance, E->get().method, v);

// TODO: This is missing 64 bits arrays, I have no idea how to do it in JNI.
int fCount = env->GetArrayLength(arr);
Vector<double> sarr;
sarr.resize(fCount);

double *w = sarr.ptrw();
env->GetDoubleArrayRegion(arr, 0, fCount, w);
ret = sarr;
env->DeleteLocalRef(arr);
} break;
case Variant::DICTIONARY: {
jobject obj = env->CallObjectMethodA(instance, E->get().method, v);
ret = _jobject_to_variant(env, obj);
Expand Down
35 changes: 34 additions & 1 deletion platform/android/jni_utils.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -148,6 +148,15 @@ jvalret _variant_to_jvalue(JNIEnv *env, Variant::Type p_type, const Variant *p_a
v.val.l = arr;
v.obj = arr;

} break;
case Variant::PACKED_INT64_ARRAY: {
Vector<int64_t> array = *p_arg;
jlongArray arr = env->NewLongArray(array.size());
const int64_t *r = array.ptr();
env->SetLongArrayRegion(arr, 0, array.size(), r);
v.val.l = arr;
v.obj = arr;

} break;
case Variant::PACKED_BYTE_ARRAY: {
Vector<uint8_t> array = *p_arg;
Expand All @@ -167,8 +176,15 @@ jvalret _variant_to_jvalue(JNIEnv *env, Variant::Type p_type, const Variant *p_a
v.obj = arr;

} break;
case Variant::PACKED_FLOAT64_ARRAY: {
Vector<double> array = *p_arg;
jdoubleArray arr = env->NewDoubleArray(array.size());
const double *r = array.ptr();
env->SetDoubleArrayRegion(arr, 0, array.size(), r);
v.val.l = arr;
v.obj = arr;

// TODO: This is missing 64 bits arrays, I have no idea how to do it in JNI.
} break;

default: {
v.val.i = 0;
Expand Down Expand Up @@ -244,6 +260,17 @@ Variant _jobject_to_variant(JNIEnv *env, jobject obj) {
return sarr;
}

if (name == "[J") {
jlongArray arr = (jlongArray)obj;
int fCount = env->GetArrayLength(arr);
Vector<int64_t> sarr;
sarr.resize(fCount);

int64_t *w = sarr.ptrw();
env->GetLongArrayRegion(arr, 0, fCount, w);
return sarr;
}

if (name == "[B") {
jbyteArray arr = (jbyteArray)obj;
int fCount = env->GetArrayLength(arr);
Expand Down Expand Up @@ -344,12 +371,15 @@ Variant::Type get_jni_type(const String &p_type) {
{ "void", Variant::NIL },
{ "boolean", Variant::BOOL },
{ "int", Variant::INT },
{ "long", Variant::INT },
{ "float", Variant::FLOAT },
{ "double", Variant::FLOAT },
{ "java.lang.String", Variant::STRING },
{ "[I", Variant::PACKED_INT32_ARRAY },
{ "[J", Variant::PACKED_INT64_ARRAY },
{ "[B", Variant::PACKED_BYTE_ARRAY },
{ "[F", Variant::PACKED_FLOAT32_ARRAY },
{ "[D", Variant::PACKED_FLOAT64_ARRAY },
{ "[Ljava.lang.String;", Variant::PACKED_STRING_ARRAY },
{ "org.godotengine.godot.Dictionary", Variant::DICTIONARY },
{ nullptr, Variant::NIL }
Expand All @@ -376,13 +406,16 @@ const char *get_jni_sig(const String &p_type) {
{ "void", "V" },
{ "boolean", "Z" },
{ "int", "I" },
{ "long", "J" },
{ "float", "F" },
{ "double", "D" },
{ "java.lang.String", "Ljava/lang/String;" },
{ "org.godotengine.godot.Dictionary", "Lorg/godotengine/godot/Dictionary;" },
{ "[I", "[I" },
{ "[J", "[J" },
{ "[B", "[B" },
{ "[F", "[F" },
{ "[D", "[D" },
{ "[Ljava.lang.String;", "[Ljava/lang/String;" },
{ nullptr, "V" }
};
Expand Down

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