virtualx-engine/platform/android/java_godot_lib_jni.cpp

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/*************************************************************************/
/* java_godot_lib_jni.cpp */
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/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
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/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "java_godot_lib_jni.h"
#include "java_godot_io_wrapper.h"
#include "java_godot_wrapper.h"
#include "android/asset_manager_jni.h"
#include "android_input_handler.h"
#include "api/java_class_wrapper.h"
#include "api/jni_singleton.h"
#include "core/engine.h"
#include "core/project_settings.h"
#include "dir_access_jandroid.h"
#include "file_access_android.h"
#include "jni_utils.h"
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#include "main/input_default.h"
#include "main/main.h"
#include "net_socket_android.h"
#include "os_android.h"
#include "string_android.h"
#include "thread_jandroid.h"
#include <android/input.h>
#include <unistd.h>
static JavaClassWrapper *java_class_wrapper = NULL;
static OS_Android *os_android = NULL;
static AndroidInputHandler *input_handler = NULL;
static GodotJavaWrapper *godot_java = NULL;
static GodotIOJavaWrapper *godot_io_java = NULL;
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static bool initialized = false;
static SafeNumeric<int> step; // Shared between UI and render threads
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static Size2 new_size;
static Vector3 accelerometer;
static Vector3 gravity;
static Vector3 magnetometer;
static Vector3 gyroscope;
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static void _initialize_java_modules() {
if (!ProjectSettings::get_singleton()->has_setting("android/modules")) {
return;
}
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String modules = ProjectSettings::get_singleton()->get("android/modules");
modules = modules.strip_edges();
if (modules == String()) {
return;
}
Vector<String> mods = modules.split(",", false);
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if (mods.size()) {
jobject cls = godot_java->get_class_loader();
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// TODO create wrapper for class loader
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JNIEnv *env = get_jni_env();
jclass classLoader = env->FindClass("java/lang/ClassLoader");
jmethodID findClass = env->GetMethodID(classLoader, "loadClass", "(Ljava/lang/String;)Ljava/lang/Class;");
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for (int i = 0; i < mods.size(); i++) {
String m = mods[i];
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// Deprecated in Godot 3.2.2, it's now a plugin to enable in export preset.
if (m == "org/godotengine/godot/GodotPaymentV3") {
WARN_PRINT("GodotPaymentV3 is deprecated and is replaced by the 'GodotPayment' plugin, which should be enabled in the Android export preset.");
print_line("Skipping Android module: " + m);
continue;
}
print_line("Loading Android module: " + m);
jstring strClassName = env->NewStringUTF(m.utf8().get_data());
jclass singletonClass = (jclass)env->CallObjectMethod(cls, findClass, strClassName);
ERR_CONTINUE_MSG(!singletonClass, "Couldn't find singleton for class: " + m + ".");
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jmethodID initialize = env->GetStaticMethodID(singletonClass, "initialize", "(Landroid/app/Activity;)Lorg/godotengine/godot/Godot$SingletonBase;");
ERR_CONTINUE_MSG(!initialize, "Couldn't find proper initialize function 'public static Godot.SingletonBase Class::initialize(Activity p_activity)' initializer for singleton class: " + m + ".");
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jobject obj = env->CallStaticObjectMethod(singletonClass, initialize, godot_java->get_activity());
env->NewGlobalRef(obj);
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}
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}
}
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extern "C" {
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_setVirtualKeyboardHeight(JNIEnv *env, jclass clazz, jint p_height) {
if (godot_io_java) {
godot_io_java->set_vk_height(p_height);
}
}
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_initialize(JNIEnv *env, jclass clazz, jobject activity, jobject godot_instance, jobject p_asset_manager, jboolean p_use_apk_expansion) {
initialized = true;
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JavaVM *jvm;
env->GetJavaVM(&jvm);
// create our wrapper classes
godot_java = new GodotJavaWrapper(env, activity, godot_instance);
godot_io_java = new GodotIOJavaWrapper(env, godot_java->get_member_object("io", "Lorg/godotengine/godot/GodotIO;", env));
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init_thread_jandroid(jvm, env);
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jobject amgr = env->NewGlobalRef(p_asset_manager);
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FileAccessAndroid::asset_manager = AAssetManager_fromJava(env, amgr);
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DirAccessJAndroid::setup(godot_io_java->get_instance());
NetSocketAndroid::setup(godot_java->get_member_object("netUtils", "Lorg/godotengine/godot/utils/GodotNetUtils;", env));
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os_android = new OS_Android(godot_java, godot_io_java, p_use_apk_expansion);
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char wd[500];
getcwd(wd, 500);
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godot_java->on_video_init(env);
}
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JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_ondestroy(JNIEnv *env, jclass clazz) {
// lets cleanup
if (java_class_wrapper) {
memdelete(java_class_wrapper);
}
if (godot_io_java) {
delete godot_io_java;
}
if (godot_java) {
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godot_java->destroy_offscreen_gl(env);
delete godot_java;
}
if (input_handler) {
delete input_handler;
}
if (os_android) {
os_android->main_loop_end();
delete os_android;
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}
}
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_setup(JNIEnv *env, jclass clazz, jobjectArray p_cmdline) {
setup_android_thread();
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const char **cmdline = NULL;
jstring *j_cmdline = NULL;
int cmdlen = 0;
if (p_cmdline) {
cmdlen = env->GetArrayLength(p_cmdline);
if (cmdlen) {
cmdline = (const char **)memalloc((cmdlen + 1) * sizeof(const char *));
ERR_FAIL_NULL_MSG(cmdline, "Out of memory.");
cmdline[cmdlen] = NULL;
j_cmdline = (jstring *)memalloc(cmdlen * sizeof(jstring));
ERR_FAIL_NULL_MSG(j_cmdline, "Out of memory.");
for (int i = 0; i < cmdlen; i++) {
jstring string = (jstring)env->GetObjectArrayElement(p_cmdline, i);
const char *rawString = env->GetStringUTFChars(string, 0);
cmdline[i] = rawString;
j_cmdline[i] = string;
}
}
}
Error err = Main::setup(OS_Android::ANDROID_EXEC_PATH, cmdlen, (char **)cmdline, false);
if (cmdline) {
if (j_cmdline) {
for (int i = 0; i < cmdlen; ++i) {
env->ReleaseStringUTFChars(j_cmdline[i], cmdline[i]);
}
memfree(j_cmdline);
}
memfree(cmdline);
}
if (err != OK) {
return; // should exit instead and print the error
}
java_class_wrapper = memnew(JavaClassWrapper(godot_java->get_activity()));
ClassDB::register_class<JNISingleton>();
_initialize_java_modules();
}
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_resize(JNIEnv *env, jclass clazz, jint width, jint height) {
if (os_android)
os_android->set_display_size(Size2(width, height));
}
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JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_newcontext(JNIEnv *env, jclass clazz) {
if (os_android) {
if (step.get() == 0) {
// During startup
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os_android->set_offscreen_gl_available(godot_java->create_offscreen_gl(env));
} else {
// GL context recreated because it was lost; restart app to let it reload everything
step.set(-1); // Ensure no further steps are attempted and no further events are sent
os_android->main_loop_end();
godot_java->restart(env);
}
}
}
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_back(JNIEnv *env, jclass clazz) {
if (step.get() == 0)
return;
if (os_android->get_main_loop()) {
os_android->get_main_loop()->notification(MainLoop::NOTIFICATION_WM_GO_BACK_REQUEST);
}
}
JNIEXPORT jboolean JNICALL Java_org_godotengine_godot_GodotLib_step(JNIEnv *env, jclass clazz) {
if (step.get() == -1)
return true;
if (step.get() == 0) {
// Since Godot is initialized on the UI thread, _main_thread_id was set to that thread's id,
// but for Godot purposes, the main thread is the one running the game loop
Main::setup2(Thread::get_caller_id());
input_handler = new AndroidInputHandler();
step.increment();
return true;
}
if (step.get() == 1) {
if (!Main::start()) {
return true; // should exit instead and print the error
}
godot_java->on_godot_setup_completed(env);
os_android->main_loop_begin();
godot_java->on_godot_main_loop_started(env);
step.increment();
}
os_android->process_accelerometer(accelerometer);
os_android->process_gravity(gravity);
os_android->process_magnetometer(magnetometer);
os_android->process_gyroscope(gyroscope);
bool should_swap_buffers = false;
if (os_android->main_loop_iterate(&should_swap_buffers)) {
godot_java->force_quit(env);
}
return should_swap_buffers;
}
void touch_preprocessing(JNIEnv *env, jclass clazz, jint input_device, jint ev, jint pointer, jint pointer_count, jfloatArray positions, jint buttons_mask, jfloat vertical_factor, jfloat horizontal_factor) {
if (step.get() <= 0)
return;
Vector<AndroidInputHandler::TouchPos> points;
for (int i = 0; i < pointer_count; i++) {
jfloat p[3];
env->GetFloatArrayRegion(positions, i * 3, 3, p);
AndroidInputHandler::TouchPos tp;
tp.pos = Point2(p[1], p[2]);
tp.id = (int)p[0];
points.push_back(tp);
}
if ((input_device & AINPUT_SOURCE_MOUSE) == AINPUT_SOURCE_MOUSE) {
input_handler->process_mouse_event(ev, buttons_mask, points[0].pos, vertical_factor, horizontal_factor);
} else {
input_handler->process_touch(ev, pointer, points);
}
}
// Called on the UI thread
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_touch__IIII_3F(JNIEnv *env, jclass clazz, jint input_device, jint ev, jint pointer, jint pointer_count, jfloatArray position) {
touch_preprocessing(env, clazz, input_device, ev, pointer, pointer_count, position);
}
// Called on the UI thread
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_touch__IIII_3FI(JNIEnv *env, jclass clazz, jint input_device, jint ev, jint pointer, jint pointer_count, jfloatArray position, jint buttons_mask) {
touch_preprocessing(env, clazz, input_device, ev, pointer, pointer_count, position, buttons_mask);
}
// Called on the UI thread
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_touch__IIII_3FIFF(JNIEnv *env, jclass clazz, jint input_device, jint ev, jint pointer, jint pointer_count, jfloatArray position, jint buttons_mask, jfloat vertical_factor, jfloat horizontal_factor) {
touch_preprocessing(env, clazz, input_device, ev, pointer, pointer_count, position, buttons_mask, vertical_factor, horizontal_factor);
}
// Called on the UI thread
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_hover(JNIEnv *env, jclass clazz, jint p_type, jfloat p_x, jfloat p_y) {
if (step.get() <= 0)
return;
input_handler->process_hover(p_type, Point2(p_x, p_y));
}
// Called on the UI thread
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_doubleTap(JNIEnv *env, jclass clazz, jint p_button_mask, jint p_x, jint p_y) {
if (step.get() <= 0)
return;
input_handler->process_double_tap(p_button_mask, Point2(p_x, p_y));
}
// Called on the UI thread
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_scroll(JNIEnv *env, jclass clazz, jint p_x, jint p_y) {
if (step.get() <= 0)
return;
input_handler->process_scroll(Point2(p_x, p_y));
}
// Called on the UI thread
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_joybutton(JNIEnv *env, jclass clazz, jint p_device, jint p_button, jboolean p_pressed) {
if (step.get() <= 0)
return;
AndroidInputHandler::JoypadEvent jevent;
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jevent.device = p_device;
jevent.type = AndroidInputHandler::JOY_EVENT_BUTTON;
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jevent.index = p_button;
jevent.pressed = p_pressed;
input_handler->process_joy_event(jevent);
}
// Called on the UI thread
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_joyaxis(JNIEnv *env, jclass clazz, jint p_device, jint p_axis, jfloat p_value) {
if (step.get() <= 0)
return;
AndroidInputHandler::JoypadEvent jevent;
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jevent.device = p_device;
jevent.type = AndroidInputHandler::JOY_EVENT_AXIS;
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jevent.index = p_axis;
jevent.value = p_value;
input_handler->process_joy_event(jevent);
}
// Called on the UI thread
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_joyhat(JNIEnv *env, jclass clazz, jint p_device, jint p_hat_x, jint p_hat_y) {
if (step.get() <= 0)
return;
AndroidInputHandler::JoypadEvent jevent;
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jevent.device = p_device;
jevent.type = AndroidInputHandler::JOY_EVENT_HAT;
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int hat = 0;
if (p_hat_x != 0) {
if (p_hat_x < 0)
hat |= InputDefault::HAT_MASK_LEFT;
else
hat |= InputDefault::HAT_MASK_RIGHT;
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}
if (p_hat_y != 0) {
if (p_hat_y < 0)
hat |= InputDefault::HAT_MASK_UP;
else
hat |= InputDefault::HAT_MASK_DOWN;
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}
jevent.hat = hat;
input_handler->process_joy_event(jevent);
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}
// Called on the UI thread
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_joyconnectionchanged(JNIEnv *env, jclass clazz, jint p_device, jboolean p_connected, jstring p_name) {
if (step.get() <= 0)
return;
String name = jstring_to_string(p_name, env);
input_handler->joy_connection_changed(p_device, p_connected, name);
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}
// Called on the UI thread
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_key(JNIEnv *env, jclass clazz, jint p_keycode, jint p_scancode, jint p_unicode_char, jboolean p_pressed) {
if (step.get() <= 0)
return;
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input_handler->process_key_event(p_keycode, p_scancode, p_unicode_char, p_pressed);
}
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JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_accelerometer(JNIEnv *env, jclass clazz, jfloat x, jfloat y, jfloat z) {
accelerometer = Vector3(x, y, z);
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}
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_gravity(JNIEnv *env, jclass clazz, jfloat x, jfloat y, jfloat z) {
gravity = Vector3(x, y, z);
}
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_magnetometer(JNIEnv *env, jclass clazz, jfloat x, jfloat y, jfloat z) {
magnetometer = Vector3(x, y, z);
}
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_gyroscope(JNIEnv *env, jclass clazz, jfloat x, jfloat y, jfloat z) {
gyroscope = Vector3(x, y, z);
}
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_focusin(JNIEnv *env, jclass clazz) {
if (step.get() <= 0)
return;
os_android->main_loop_focusin();
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}
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_focusout(JNIEnv *env, jclass clazz) {
if (step.get() <= 0)
return;
os_android->main_loop_focusout();
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}
JNIEXPORT jstring JNICALL Java_org_godotengine_godot_GodotLib_getGlobal(JNIEnv *env, jclass clazz, jstring path) {
String js = jstring_to_string(path, env);
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return env->NewStringUTF(ProjectSettings::get_singleton()->get(js).operator String().utf8().get_data());
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}
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_callobject(JNIEnv *env, jclass clazz, jlong ID, jstring method, jobjectArray params) {
Object *obj = ObjectDB::get_instance(ID);
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ERR_FAIL_COND(!obj);
int res = env->PushLocalFrame(16);
ERR_FAIL_COND(res != 0);
String str_method = jstring_to_string(method, env);
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int count = env->GetArrayLength(params);
Variant *vlist = (Variant *)alloca(sizeof(Variant) * count);
Variant **vptr = (Variant **)alloca(sizeof(Variant *) * count);
for (int i = 0; i < count; i++) {
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jobject obj = env->GetObjectArrayElement(params, i);
Variant v;
if (obj)
v = _jobject_to_variant(env, obj);
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memnew_placement(&vlist[i], Variant);
vlist[i] = v;
vptr[i] = &vlist[i];
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env->DeleteLocalRef(obj);
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};
Variant::CallError err;
obj->call(str_method, (const Variant **)vptr, count, err);
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// something
env->PopLocalFrame(NULL);
}
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JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_calldeferred(JNIEnv *env, jclass clazz, jlong ID, jstring method, jobjectArray params) {
Object *obj = ObjectDB::get_instance(ID);
ERR_FAIL_COND(!obj);
int res = env->PushLocalFrame(16);
ERR_FAIL_COND(res != 0);
String str_method = jstring_to_string(method, env);
int count = env->GetArrayLength(params);
Variant args[VARIANT_ARG_MAX];
for (int i = 0; i < MIN(count, VARIANT_ARG_MAX); i++) {
jobject obj = env->GetObjectArrayElement(params, i);
if (obj)
args[i] = _jobject_to_variant(env, obj);
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env->DeleteLocalRef(obj);
};
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static_assert(VARIANT_ARG_MAX == 8, "This code needs to be updated if VARIANT_ARG_MAX != 8");
obj->call_deferred(str_method, args[0], args[1], args[2], args[3], args[4], args[5], args[6], args[7]);
// something
env->PopLocalFrame(NULL);
}
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_requestPermissionResult(JNIEnv *env, jclass clazz, jstring p_permission, jboolean p_result) {
String permission = jstring_to_string(p_permission, env);
if (permission == "android.permission.RECORD_AUDIO" && p_result) {
AudioDriver::get_singleton()->capture_start();
}
if (os_android->get_main_loop()) {
os_android->get_main_loop()->emit_signal("on_request_permissions_result", permission, p_result == JNI_TRUE);
}
}
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_onRendererResumed(JNIEnv *env, jclass clazz) {
if (step.get() <= 0)
return;
// We force redraw to ensure we render at least once when resuming the app.
Main::force_redraw();
if (os_android->get_main_loop()) {
os_android->get_main_loop()->notification(MainLoop::NOTIFICATION_APP_RESUMED);
}
}
JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_onRendererPaused(JNIEnv *env, jclass clazz) {
if (step.get() <= 0)
return;
if (os_android->get_main_loop()) {
os_android->get_main_loop()->notification(MainLoop::NOTIFICATION_APP_PAUSED);
}
}
}