d600e6eb1b
This commit adds the classes OpenXRExtensionWrapperExtension and OpenXRAPIExtension that can be used in GDExtensions to define OpenXR extension wrappers. It modifies extension wrapper registration so that they can be registered before OpenXRAPI instantiation (e.g. in core level initialization of GDExtensions). Developed by Migeran (https://migeran.com)
112 lines
4.8 KiB
C++
112 lines
4.8 KiB
C++
/**************************************************************************/
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/* openxr_android_extension.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 "openxr_android_extension.h"
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#include "../openxr_api.h"
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#include "java_godot_wrapper.h"
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#include "os_android.h"
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#include "thread_jandroid.h"
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#include <jni.h>
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#include <openxr/openxr.h>
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#include <openxr/openxr_platform.h>
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OpenXRAndroidExtension *OpenXRAndroidExtension::singleton = nullptr;
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OpenXRAndroidExtension *OpenXRAndroidExtension::get_singleton() {
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return singleton;
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}
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OpenXRAndroidExtension::OpenXRAndroidExtension() {
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singleton = this;
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}
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HashMap<String, bool *> OpenXRAndroidExtension::get_requested_extensions() {
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HashMap<String, bool *> request_extensions;
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request_extensions[XR_KHR_LOADER_INIT_ANDROID_EXTENSION_NAME] = &loader_init_extension_available;
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request_extensions[XR_KHR_ANDROID_CREATE_INSTANCE_EXTENSION_NAME] = &create_instance_extension_available;
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return request_extensions;
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}
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void OpenXRAndroidExtension::on_before_instance_created() {
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if (XR_FAILED(EXT_TRY_INIT_XR_FUNC(xrInitializeLoaderKHR))) {
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// XR_KHR_loader_init not supported on this platform
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return;
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}
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loader_init_extension_available = true;
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JNIEnv *env = get_jni_env();
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JavaVM *vm;
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env->GetJavaVM(&vm);
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jobject activity_object = env->NewGlobalRef(static_cast<OS_Android *>(OS::get_singleton())->get_godot_java()->get_activity());
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XrLoaderInitInfoAndroidKHR loader_init_info_android = {
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.type = XR_TYPE_LOADER_INIT_INFO_ANDROID_KHR,
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.next = nullptr,
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.applicationVM = vm,
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.applicationContext = activity_object
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};
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XrResult result = xrInitializeLoaderKHR((const XrLoaderInitInfoBaseHeaderKHR *)&loader_init_info_android);
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ERR_FAIL_COND_MSG(XR_FAILED(result), "Failed to call xrInitializeLoaderKHR");
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}
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// We're keeping the Android create info struct here to avoid including openxr_platform.h in a header, which would break other extensions.
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// This is reasonably safe as the struct is only used during initialization and the extension is a singleton.
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static XrInstanceCreateInfoAndroidKHR instance_create_info;
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void *OpenXRAndroidExtension::set_instance_create_info_and_get_next_pointer(void *p_next_pointer) {
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if (!create_instance_extension_available) {
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if (!loader_init_extension_available) {
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WARN_PRINT("No Android extensions available, couldn't pass JVM and Activity to OpenXR");
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}
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return nullptr;
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}
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JNIEnv *env = get_jni_env();
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JavaVM *vm;
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env->GetJavaVM(&vm);
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jobject activity_object = env->NewGlobalRef(static_cast<OS_Android *>(OS::get_singleton())->get_godot_java()->get_activity());
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instance_create_info = {
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.type = XR_TYPE_INSTANCE_CREATE_INFO_ANDROID_KHR,
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.next = p_next_pointer,
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.applicationVM = vm,
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.applicationActivity = activity_object
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};
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return &instance_create_info;
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}
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OpenXRAndroidExtension::~OpenXRAndroidExtension() {
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singleton = nullptr;
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}
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