/**************************************************************************/ /* openxr_android_extension.cpp */ /**************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /**************************************************************************/ /* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */ /* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ /* */ /* 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 "openxr_android_extension.h" #include "java_godot_wrapper.h" #include "os_android.h" #include "thread_jandroid.h" #include <jni.h> #include <modules/openxr/openxr_api.h> #include <openxr/openxr.h> #include <openxr/openxr_platform.h> OpenXRAndroidExtension *OpenXRAndroidExtension::singleton = nullptr; OpenXRAndroidExtension *OpenXRAndroidExtension::get_singleton() { return singleton; } OpenXRAndroidExtension::OpenXRAndroidExtension() { singleton = this; } HashMap<String, bool *> OpenXRAndroidExtension::get_requested_extensions() { HashMap<String, bool *> request_extensions; request_extensions[XR_KHR_ANDROID_CREATE_INSTANCE_EXTENSION_NAME] = &create_instance_extension_available; return request_extensions; } void OpenXRAndroidExtension::on_before_instance_created() { if (XR_FAILED(EXT_TRY_INIT_XR_FUNC(xrInitializeLoaderKHR))) { // XR_KHR_loader_init not supported on this platform return; } loader_init_extension_available = true; JNIEnv *env = get_jni_env(); JavaVM *vm; env->GetJavaVM(&vm); jobject activity_object = env->NewGlobalRef(static_cast<OS_Android *>(OS::get_singleton())->get_godot_java()->get_activity()); XrLoaderInitInfoAndroidKHR loader_init_info_android = { .type = XR_TYPE_LOADER_INIT_INFO_ANDROID_KHR, .next = nullptr, .applicationVM = vm, .applicationContext = activity_object }; XrResult result = xrInitializeLoaderKHR((const XrLoaderInitInfoBaseHeaderKHR *)&loader_init_info_android); ERR_FAIL_COND_MSG(XR_FAILED(result), "Failed to call xrInitializeLoaderKHR"); } // We're keeping the Android create info struct here to avoid including openxr_platform.h in a header, which would break other extensions. // This is reasonably safe as the struct is only used during initialization and the extension is a singleton. static XrInstanceCreateInfoAndroidKHR instance_create_info; void *OpenXRAndroidExtension::set_instance_create_info_and_get_next_pointer(void *p_next_pointer) { if (!create_instance_extension_available) { if (!loader_init_extension_available) { WARN_PRINT("No Android extensions available, couldn't pass JVM and Activity to OpenXR"); } return nullptr; } JNIEnv *env = get_jni_env(); JavaVM *vm; env->GetJavaVM(&vm); jobject activity_object = env->NewGlobalRef(static_cast<OS_Android *>(OS::get_singleton())->get_godot_java()->get_activity()); instance_create_info = { .type = XR_TYPE_INSTANCE_CREATE_INFO_ANDROID_KHR, .next = p_next_pointer, .applicationVM = vm, .applicationActivity = activity_object }; return &instance_create_info; } OpenXRAndroidExtension::~OpenXRAndroidExtension() { singleton = nullptr; }