1426cd3b3a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see". Backported from #70885.
400 lines
12 KiB
C++
400 lines
12 KiB
C++
/**************************************************************************/
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/* jni_utils.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "jni_utils.h"
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jvalret _variant_to_jvalue(JNIEnv *env, Variant::Type p_type, const Variant *p_arg, bool force_jobject) {
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jvalret v;
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switch (p_type) {
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case Variant::BOOL: {
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if (force_jobject) {
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jclass bclass = env->FindClass("java/lang/Boolean");
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jmethodID ctor = env->GetMethodID(bclass, "<init>", "(Z)V");
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jvalue val;
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val.z = (bool)(*p_arg);
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jobject obj = env->NewObjectA(bclass, ctor, &val);
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v.val.l = obj;
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v.obj = obj;
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env->DeleteLocalRef(bclass);
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} else {
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v.val.z = *p_arg;
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}
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} break;
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case Variant::INT: {
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if (force_jobject) {
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jclass bclass = env->FindClass("java/lang/Integer");
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jmethodID ctor = env->GetMethodID(bclass, "<init>", "(I)V");
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jvalue val;
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val.i = (int)(*p_arg);
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jobject obj = env->NewObjectA(bclass, ctor, &val);
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v.val.l = obj;
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v.obj = obj;
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env->DeleteLocalRef(bclass);
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} else {
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v.val.i = *p_arg;
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}
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} break;
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case Variant::REAL: {
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if (force_jobject) {
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jclass bclass = env->FindClass("java/lang/Double");
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jmethodID ctor = env->GetMethodID(bclass, "<init>", "(D)V");
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jvalue val;
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val.d = (double)(*p_arg);
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jobject obj = env->NewObjectA(bclass, ctor, &val);
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v.val.l = obj;
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v.obj = obj;
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env->DeleteLocalRef(bclass);
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} else {
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v.val.f = *p_arg;
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}
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} break;
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case Variant::STRING: {
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String s = *p_arg;
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jstring jStr = env->NewStringUTF(s.utf8().get_data());
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v.val.l = jStr;
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v.obj = jStr;
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} break;
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case Variant::POOL_STRING_ARRAY: {
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PoolVector<String> sarray = *p_arg;
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jobjectArray arr = env->NewObjectArray(sarray.size(), env->FindClass("java/lang/String"), env->NewStringUTF(""));
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for (int j = 0; j < sarray.size(); j++) {
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jstring str = env->NewStringUTF(sarray[j].utf8().get_data());
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env->SetObjectArrayElement(arr, j, str);
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env->DeleteLocalRef(str);
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}
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v.val.l = arr;
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v.obj = arr;
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} break;
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case Variant::DICTIONARY: {
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Dictionary dict = *p_arg;
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jclass dclass = env->FindClass("org/godotengine/godot/Dictionary");
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jmethodID ctor = env->GetMethodID(dclass, "<init>", "()V");
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jobject jdict = env->NewObject(dclass, ctor);
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Array keys = dict.keys();
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jobjectArray jkeys = env->NewObjectArray(keys.size(), env->FindClass("java/lang/String"), env->NewStringUTF(""));
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for (int j = 0; j < keys.size(); j++) {
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jstring str = env->NewStringUTF(String(keys[j]).utf8().get_data());
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env->SetObjectArrayElement(jkeys, j, str);
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env->DeleteLocalRef(str);
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}
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jmethodID set_keys = env->GetMethodID(dclass, "set_keys", "([Ljava/lang/String;)V");
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jvalue val;
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val.l = jkeys;
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env->CallVoidMethodA(jdict, set_keys, &val);
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env->DeleteLocalRef(jkeys);
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jobjectArray jvalues = env->NewObjectArray(keys.size(), env->FindClass("java/lang/Object"), nullptr);
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for (int j = 0; j < keys.size(); j++) {
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Variant var = dict[keys[j]];
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jvalret valret = _variant_to_jvalue(env, var.get_type(), &var, true);
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env->SetObjectArrayElement(jvalues, j, valret.val.l);
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if (valret.obj) {
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env->DeleteLocalRef(valret.obj);
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}
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}
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jmethodID set_values = env->GetMethodID(dclass, "set_values", "([Ljava/lang/Object;)V");
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val.l = jvalues;
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env->CallVoidMethodA(jdict, set_values, &val);
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env->DeleteLocalRef(jvalues);
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env->DeleteLocalRef(dclass);
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v.val.l = jdict;
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v.obj = jdict;
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} break;
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case Variant::POOL_INT_ARRAY: {
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PoolVector<int> array = *p_arg;
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jintArray arr = env->NewIntArray(array.size());
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PoolVector<int>::Read r = array.read();
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env->SetIntArrayRegion(arr, 0, array.size(), r.ptr());
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v.val.l = arr;
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v.obj = arr;
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} break;
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case Variant::POOL_BYTE_ARRAY: {
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PoolVector<uint8_t> array = *p_arg;
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jbyteArray arr = env->NewByteArray(array.size());
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PoolVector<uint8_t>::Read r = array.read();
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env->SetByteArrayRegion(arr, 0, array.size(), reinterpret_cast<const signed char *>(r.ptr()));
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v.val.l = arr;
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v.obj = arr;
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} break;
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case Variant::POOL_REAL_ARRAY: {
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PoolVector<float> array = *p_arg;
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jfloatArray arr = env->NewFloatArray(array.size());
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PoolVector<float>::Read r = array.read();
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env->SetFloatArrayRegion(arr, 0, array.size(), r.ptr());
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v.val.l = arr;
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v.obj = arr;
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} break;
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default: {
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v.val.i = 0;
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} break;
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}
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return v;
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}
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String _get_class_name(JNIEnv *env, jclass cls, bool *array) {
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jclass cclass = env->FindClass("java/lang/Class");
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jmethodID getName = env->GetMethodID(cclass, "getName", "()Ljava/lang/String;");
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jstring clsName = (jstring)env->CallObjectMethod(cls, getName);
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if (array) {
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jmethodID isArray = env->GetMethodID(cclass, "isArray", "()Z");
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jboolean isarr = env->CallBooleanMethod(cls, isArray);
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(*array) = isarr != 0;
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}
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String name = jstring_to_string(clsName, env);
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env->DeleteLocalRef(clsName);
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return name;
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}
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Variant _jobject_to_variant(JNIEnv *env, jobject obj) {
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if (obj == nullptr) {
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return Variant();
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}
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jclass c = env->GetObjectClass(obj);
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bool array;
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String name = _get_class_name(env, c, &array);
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if (name == "java.lang.String") {
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return jstring_to_string((jstring)obj, env);
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}
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if (name == "[Ljava.lang.String;") {
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jobjectArray arr = (jobjectArray)obj;
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int stringCount = env->GetArrayLength(arr);
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PoolVector<String> sarr;
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for (int i = 0; i < stringCount; i++) {
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jstring string = (jstring)env->GetObjectArrayElement(arr, i);
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sarr.push_back(jstring_to_string(string, env));
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env->DeleteLocalRef(string);
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}
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return sarr;
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}
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if (name == "java.lang.Boolean") {
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jmethodID boolValue = env->GetMethodID(c, "booleanValue", "()Z");
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bool ret = env->CallBooleanMethod(obj, boolValue);
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return ret;
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}
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if (name == "java.lang.Integer" || name == "java.lang.Long") {
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jclass nclass = env->FindClass("java/lang/Number");
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jmethodID longValue = env->GetMethodID(nclass, "longValue", "()J");
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jlong ret = env->CallLongMethod(obj, longValue);
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return ret;
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}
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if (name == "[I") {
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jintArray arr = (jintArray)obj;
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int fCount = env->GetArrayLength(arr);
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PoolVector<int> sarr;
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sarr.resize(fCount);
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PoolVector<int>::Write w = sarr.write();
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env->GetIntArrayRegion(arr, 0, fCount, w.ptr());
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w.release();
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return sarr;
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}
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if (name == "[B") {
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jbyteArray arr = (jbyteArray)obj;
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int fCount = env->GetArrayLength(arr);
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PoolVector<uint8_t> sarr;
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sarr.resize(fCount);
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PoolVector<uint8_t>::Write w = sarr.write();
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env->GetByteArrayRegion(arr, 0, fCount, reinterpret_cast<signed char *>(w.ptr()));
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w.release();
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return sarr;
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}
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if (name == "java.lang.Float" || name == "java.lang.Double") {
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jclass nclass = env->FindClass("java/lang/Number");
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jmethodID doubleValue = env->GetMethodID(nclass, "doubleValue", "()D");
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double ret = env->CallDoubleMethod(obj, doubleValue);
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return ret;
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}
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if (name == "[D") {
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jdoubleArray arr = (jdoubleArray)obj;
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int fCount = env->GetArrayLength(arr);
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PoolRealArray sarr;
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sarr.resize(fCount);
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PoolRealArray::Write w = sarr.write();
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for (int i = 0; i < fCount; i++) {
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double n;
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env->GetDoubleArrayRegion(arr, i, 1, &n);
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w.ptr()[i] = n;
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}
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return sarr;
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}
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if (name == "[F") {
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jfloatArray arr = (jfloatArray)obj;
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int fCount = env->GetArrayLength(arr);
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PoolRealArray sarr;
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sarr.resize(fCount);
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PoolRealArray::Write w = sarr.write();
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for (int i = 0; i < fCount; i++) {
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float n;
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env->GetFloatArrayRegion(arr, i, 1, &n);
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w.ptr()[i] = n;
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}
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return sarr;
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}
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if (name == "[Ljava.lang.Object;") {
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jobjectArray arr = (jobjectArray)obj;
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int objCount = env->GetArrayLength(arr);
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Array varr;
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for (int i = 0; i < objCount; i++) {
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jobject jobj = env->GetObjectArrayElement(arr, i);
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Variant v = _jobject_to_variant(env, jobj);
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varr.push_back(v);
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env->DeleteLocalRef(jobj);
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}
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return varr;
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}
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if (name == "java.util.HashMap" || name == "org.godotengine.godot.Dictionary") {
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Dictionary ret;
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jclass oclass = c;
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jmethodID get_keys = env->GetMethodID(oclass, "get_keys", "()[Ljava/lang/String;");
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jobjectArray arr = (jobjectArray)env->CallObjectMethod(obj, get_keys);
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PoolStringArray keys = _jobject_to_variant(env, arr);
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env->DeleteLocalRef(arr);
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jmethodID get_values = env->GetMethodID(oclass, "get_values", "()[Ljava/lang/Object;");
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arr = (jobjectArray)env->CallObjectMethod(obj, get_values);
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Array vals = _jobject_to_variant(env, arr);
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env->DeleteLocalRef(arr);
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for (int i = 0; i < keys.size(); i++) {
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ret[keys[i]] = vals[i];
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}
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return ret;
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}
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env->DeleteLocalRef(c);
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return Variant();
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}
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Variant::Type get_jni_type(const String &p_type) {
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static struct {
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const char *name;
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Variant::Type type;
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} _type_to_vtype[] = {
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{ "void", Variant::NIL },
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{ "boolean", Variant::BOOL },
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{ "int", Variant::INT },
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{ "float", Variant::REAL },
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{ "double", Variant::REAL },
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{ "java.lang.String", Variant::STRING },
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{ "[I", Variant::POOL_INT_ARRAY },
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{ "[B", Variant::POOL_BYTE_ARRAY },
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{ "[F", Variant::POOL_REAL_ARRAY },
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{ "[Ljava.lang.String;", Variant::POOL_STRING_ARRAY },
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{ "org.godotengine.godot.Dictionary", Variant::DICTIONARY },
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{ nullptr, Variant::NIL }
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};
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int idx = 0;
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while (_type_to_vtype[idx].name) {
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if (p_type == _type_to_vtype[idx].name) {
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return _type_to_vtype[idx].type;
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}
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idx++;
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}
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return Variant::NIL;
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}
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const char *get_jni_sig(const String &p_type) {
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static struct {
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const char *name;
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const char *sig;
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} _type_to_vtype[] = {
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{ "void", "V" },
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{ "boolean", "Z" },
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{ "int", "I" },
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{ "float", "F" },
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{ "double", "D" },
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{ "java.lang.String", "Ljava/lang/String;" },
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{ "org.godotengine.godot.Dictionary", "Lorg/godotengine/godot/Dictionary;" },
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{ "[I", "[I" },
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{ "[B", "[B" },
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{ "[F", "[F" },
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{ "[Ljava.lang.String;", "[Ljava/lang/String;" },
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{ nullptr, "V" }
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};
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int idx = 0;
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while (_type_to_vtype[idx].name) {
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if (p_type == _type_to_vtype[idx].name) {
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return _type_to_vtype[idx].sig;
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}
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idx++;
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}
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return "Ljava/lang/Object;";
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}
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