0be6d925dc
Which means that reduz' beloved style which we all became used to will now be changed automatically to remove the first empty line. This makes us lean closer to 1TBS (the one true brace style) instead of hybridating it with some Allman-inspired spacing. There's still the case of braces around single-statement blocks that needs to be addressed (but clang-format can't help with that, but clang-tidy may if we agree about it). Part of #33027.
224 lines
7.5 KiB
C++
224 lines
7.5 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) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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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/engine.h>
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#include <core/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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Map<StringName, MethodData> method_map;
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#endif
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public:
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virtual Variant call(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) {
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#ifdef ANDROID_ENABLED
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Map<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::call(p_method, p_args, p_argcount, r_error);
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}
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ERR_FAIL_COND_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 = ThreadAndroid::get_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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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_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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#ifndef _MSC_VER
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#warning This is missing 64 bits arrays, I have no idea how to do it in JNI
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#endif
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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::call(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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#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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