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d95794ec8a
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".
246 lines
8.1 KiB
C++
246 lines
8.1 KiB
C++
/**************************************************************************/
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/* jni_singleton.h */
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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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#ifndef JNI_SINGLETON_H
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#define JNI_SINGLETON_H
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#include "core/config/engine.h"
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#include "core/variant/variant.h"
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#ifdef ANDROID_ENABLED
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#include "platform/android/jni_utils.h"
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#endif
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class JNISingleton : public Object {
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GDCLASS(JNISingleton, Object);
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#ifdef ANDROID_ENABLED
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struct MethodData {
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jmethodID method;
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Variant::Type ret_type;
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Vector<Variant::Type> argtypes;
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};
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jobject instance;
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RBMap<StringName, MethodData> method_map;
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#endif
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public:
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virtual Variant callp(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) override {
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#ifdef ANDROID_ENABLED
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RBMap<StringName, MethodData>::Element *E = method_map.find(p_method);
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// Check the method we're looking for is in the JNISingleton map and that
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// the arguments match.
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bool call_error = !E || E->get().argtypes.size() != p_argcount;
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if (!call_error) {
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for (int i = 0; i < p_argcount; i++) {
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if (!Variant::can_convert(p_args[i]->get_type(), E->get().argtypes[i])) {
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call_error = true;
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break;
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}
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}
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}
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if (call_error) {
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// The method is not in this map, defaulting to the regular instance calls.
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return Object::callp(p_method, p_args, p_argcount, r_error);
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}
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ERR_FAIL_NULL_V(instance, Variant());
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r_error.error = Callable::CallError::CALL_OK;
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jvalue *v = nullptr;
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if (p_argcount) {
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v = (jvalue *)alloca(sizeof(jvalue) * p_argcount);
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}
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JNIEnv *env = get_jni_env();
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int res = env->PushLocalFrame(16);
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ERR_FAIL_COND_V(res != 0, Variant());
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List<jobject> to_erase;
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for (int i = 0; i < p_argcount; i++) {
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jvalret vr = _variant_to_jvalue(env, E->get().argtypes[i], p_args[i]);
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v[i] = vr.val;
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if (vr.obj) {
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to_erase.push_back(vr.obj);
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}
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}
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Variant ret;
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switch (E->get().ret_type) {
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case Variant::NIL: {
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env->CallVoidMethodA(instance, E->get().method, v);
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} break;
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case Variant::BOOL: {
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ret = env->CallBooleanMethodA(instance, E->get().method, v) == JNI_TRUE;
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} break;
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case Variant::INT: {
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ret = env->CallIntMethodA(instance, E->get().method, v);
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} break;
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case Variant::FLOAT: {
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ret = env->CallFloatMethodA(instance, E->get().method, v);
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} break;
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case Variant::STRING: {
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jobject o = env->CallObjectMethodA(instance, E->get().method, v);
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ret = jstring_to_string((jstring)o, env);
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env->DeleteLocalRef(o);
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} break;
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case Variant::PACKED_STRING_ARRAY: {
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jobjectArray arr = (jobjectArray)env->CallObjectMethodA(instance, E->get().method, v);
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ret = _jobject_to_variant(env, arr);
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env->DeleteLocalRef(arr);
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} break;
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case Variant::PACKED_INT32_ARRAY: {
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jintArray arr = (jintArray)env->CallObjectMethodA(instance, E->get().method, v);
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int fCount = env->GetArrayLength(arr);
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Vector<int> sarr;
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sarr.resize(fCount);
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int *w = sarr.ptrw();
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env->GetIntArrayRegion(arr, 0, fCount, w);
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ret = sarr;
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env->DeleteLocalRef(arr);
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} break;
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case Variant::PACKED_INT64_ARRAY: {
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jlongArray arr = (jlongArray)env->CallObjectMethodA(instance, E->get().method, v);
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int fCount = env->GetArrayLength(arr);
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Vector<int64_t> sarr;
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sarr.resize(fCount);
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int64_t *w = sarr.ptrw();
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env->GetLongArrayRegion(arr, 0, fCount, w);
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ret = sarr;
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env->DeleteLocalRef(arr);
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} break;
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case Variant::PACKED_FLOAT32_ARRAY: {
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jfloatArray arr = (jfloatArray)env->CallObjectMethodA(instance, E->get().method, v);
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int fCount = env->GetArrayLength(arr);
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Vector<float> sarr;
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sarr.resize(fCount);
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float *w = sarr.ptrw();
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env->GetFloatArrayRegion(arr, 0, fCount, w);
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ret = sarr;
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env->DeleteLocalRef(arr);
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} break;
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case Variant::PACKED_FLOAT64_ARRAY: {
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jdoubleArray arr = (jdoubleArray)env->CallObjectMethodA(instance, E->get().method, v);
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int fCount = env->GetArrayLength(arr);
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Vector<double> sarr;
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sarr.resize(fCount);
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double *w = sarr.ptrw();
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env->GetDoubleArrayRegion(arr, 0, fCount, w);
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ret = sarr;
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env->DeleteLocalRef(arr);
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} break;
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case Variant::DICTIONARY: {
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jobject obj = env->CallObjectMethodA(instance, E->get().method, v);
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ret = _jobject_to_variant(env, obj);
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env->DeleteLocalRef(obj);
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} break;
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default: {
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env->PopLocalFrame(nullptr);
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ERR_FAIL_V(Variant());
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} break;
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}
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while (to_erase.size()) {
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env->DeleteLocalRef(to_erase.front()->get());
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to_erase.pop_front();
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}
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env->PopLocalFrame(nullptr);
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return ret;
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#else // ANDROID_ENABLED
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// Defaulting to the regular instance calls.
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return Object::callp(p_method, p_args, p_argcount, r_error);
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#endif
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}
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#ifdef ANDROID_ENABLED
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jobject get_instance() const {
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return instance;
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}
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void set_instance(jobject p_instance) {
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instance = p_instance;
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}
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void add_method(const StringName &p_name, jmethodID p_method, const Vector<Variant::Type> &p_args, Variant::Type p_ret_type) {
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MethodData md;
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md.method = p_method;
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md.argtypes = p_args;
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md.ret_type = p_ret_type;
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method_map[p_name] = md;
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}
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void add_signal(const StringName &p_name, const Vector<Variant::Type> &p_args) {
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if (p_args.size() == 0) {
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ADD_SIGNAL(MethodInfo(p_name));
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} else if (p_args.size() == 1) {
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ADD_SIGNAL(MethodInfo(p_name, PropertyInfo(p_args[0], "arg1")));
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} else if (p_args.size() == 2) {
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ADD_SIGNAL(MethodInfo(p_name, PropertyInfo(p_args[0], "arg1"), PropertyInfo(p_args[1], "arg2")));
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} else if (p_args.size() == 3) {
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ADD_SIGNAL(MethodInfo(p_name, PropertyInfo(p_args[0], "arg1"), PropertyInfo(p_args[1], "arg2"), PropertyInfo(p_args[2], "arg3")));
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} else if (p_args.size() == 4) {
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ADD_SIGNAL(MethodInfo(p_name, PropertyInfo(p_args[0], "arg1"), PropertyInfo(p_args[1], "arg2"), PropertyInfo(p_args[2], "arg3"), PropertyInfo(p_args[3], "arg4")));
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} else if (p_args.size() == 5) {
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ADD_SIGNAL(MethodInfo(p_name, PropertyInfo(p_args[0], "arg1"), PropertyInfo(p_args[1], "arg2"), PropertyInfo(p_args[2], "arg3"), PropertyInfo(p_args[3], "arg4"), PropertyInfo(p_args[4], "arg5")));
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}
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}
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#endif
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JNISingleton() {
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#ifdef ANDROID_ENABLED
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instance = nullptr;
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#endif
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}
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};
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#endif // JNI_SINGLETON_H
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