131 lines
5.6 KiB
C++
131 lines
5.6 KiB
C++
/**************************************************************************/
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/* callable_jni.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 "callable_jni.h"
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#include "jni_utils.h"
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#include "core/error/error_macros.h"
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#include "core/object/object.h"
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static Callable _generate_callable(JNIEnv *p_env, jlong p_object_id, jstring p_method_name, jobjectArray p_parameters) {
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Object *obj = ObjectDB::get_instance(ObjectID(p_object_id));
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ERR_FAIL_NULL_V(obj, Callable());
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String str_method = jstring_to_string(p_method_name, p_env);
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int count = p_env->GetArrayLength(p_parameters);
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Variant *args = (Variant *)alloca(sizeof(Variant) * count);
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const Variant **argptrs = (const Variant **)alloca(sizeof(Variant *) * count);
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for (int i = 0; i < count; i++) {
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jobject jobj = p_env->GetObjectArrayElement(p_parameters, i);
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ERR_FAIL_NULL_V(jobj, Callable());
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memnew_placement(&args[i], Variant(_jobject_to_variant(p_env, jobj)));
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argptrs[i] = &args[i];
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p_env->DeleteLocalRef(jobj);
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}
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Callable ret = Callable(obj, str_method).bindp(argptrs, count);
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// Manually invoke the destructor to decrease the reference counts for the variant arguments.
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for (int i = 0; i < count; i++) {
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args[i].~Variant();
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}
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return ret;
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}
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extern "C" {
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JNIEXPORT jobject JNICALL Java_org_godotengine_godot_variant_Callable_nativeCall(JNIEnv *p_env, jclass p_clazz, jlong p_native_callable, jobjectArray p_parameters) {
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const Variant *callable_variant = reinterpret_cast<const Variant *>(p_native_callable);
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ERR_FAIL_NULL_V(callable_variant, nullptr);
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if (callable_variant->get_type() != Variant::CALLABLE) {
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return nullptr;
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}
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int count = p_env->GetArrayLength(p_parameters);
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Variant *args = (Variant *)alloca(sizeof(Variant) * count);
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const Variant **argptrs = (const Variant **)alloca(sizeof(Variant *) * count);
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for (int i = 0; i < count; i++) {
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jobject jobj = p_env->GetObjectArrayElement(p_parameters, i);
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ERR_FAIL_NULL_V(jobj, nullptr);
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memnew_placement(&args[i], Variant(_jobject_to_variant(p_env, jobj)));
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argptrs[i] = &args[i];
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p_env->DeleteLocalRef(jobj);
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}
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Callable callable = *callable_variant;
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jobject ret = nullptr;
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if (callable.is_valid()) {
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Callable::CallError err;
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Variant result;
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callable.callp(argptrs, count, result, err);
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jvalret jresult = _variant_to_jvalue(p_env, result.get_type(), &result, true);
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ret = jresult.obj;
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}
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// Manually invoke the destructor to decrease the reference counts for the variant arguments.
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for (int i = 0; i < count; i++) {
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args[i].~Variant();
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}
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return ret;
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}
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JNIEXPORT jobject JNICALL Java_org_godotengine_godot_variant_Callable_nativeCallObject(JNIEnv *p_env, jclass p_clazz, jlong p_object_id, jstring p_method_name, jobjectArray p_parameters) {
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Callable callable = _generate_callable(p_env, p_object_id, p_method_name, p_parameters);
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if (callable.is_valid()) {
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Variant result = callable.call();
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jvalret jresult = _variant_to_jvalue(p_env, result.get_type(), &result, true);
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return jresult.obj;
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} else {
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return nullptr;
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}
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}
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JNIEXPORT void JNICALL Java_org_godotengine_godot_variant_Callable_nativeCallObjectDeferred(JNIEnv *p_env, jclass p_clazz, jlong p_object_id, jstring p_method_name, jobjectArray p_parameters) {
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Callable callable = _generate_callable(p_env, p_object_id, p_method_name, p_parameters);
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if (callable.is_valid()) {
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callable.call_deferred();
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}
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}
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JNIEXPORT void JNICALL
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Java_org_godotengine_godot_variant_Callable_releaseNativePointer(JNIEnv *p_env, jclass clazz, jlong p_native_pointer) {
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Variant *variant = reinterpret_cast<Variant *>(p_native_pointer);
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ERR_FAIL_NULL(variant);
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memdelete(variant);
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}
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}
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