OpenXR add core support for Khronos loader

2025-11-25 15:37:42 +00:00 · 2025-05-28 14:55:55 +10:00
parent ef34c3d534
commit c056cae437
7 changed files with 213 additions and 16 deletions
--- a/modules/openxr/editor/openxr_editor_plugin.cpp
+++ b/modules/openxr/editor/openxr_editor_plugin.cpp
@@ -35,6 +35,119 @@
 #include "editor/editor_node.h"
 #include "editor/gui/editor_bottom_panel.h"
 #include "editor/settings/editor_command_palette.h"
+#include "platform/android/export/export_plugin.h"
+
+#include <openxr/openxr.h>
+
+////////////////////////////////////////////////////////////////////////////
+// OpenXRExportPlugin
+
+bool OpenXRExportPlugin::supports_platform(const Ref<EditorExportPlatform> &p_export_platform) const {
+	return p_export_platform->is_class(EditorExportPlatformAndroid::get_class_static());
+}
+
+bool OpenXRExportPlugin::is_openxr_mode() const {
+	int xr_mode_index = get_option("xr_features/xr_mode");
+
+	return xr_mode_index == XR_MODE_OPENXR;
+}
+
+String OpenXRExportPlugin::_get_export_option_warning(const Ref<EditorExportPlatform> &p_export_platform, const String &p_option_name) const {
+	if (!supports_platform(p_export_platform)) {
+		return String();
+	}
+
+	bool gradle_build = get_option("gradle_build/use_gradle_build");
+	if (is_openxr_mode() && !gradle_build) {
+		return "\"Use Gradle Build\" must be enabled when xr_mode is set to \"OpenXR\".";
+	}
+
+	return String();
+}
+
+PackedStringArray OpenXRExportPlugin::get_android_dependencies(const Ref<EditorExportPlatform> &p_export_platform, bool p_debug) const {
+	PackedStringArray ret;
+
+	if (!supports_platform(p_export_platform)) {
+		return ret;
+	}
+
+	if (is_openxr_mode()) {
+		// Loader is always identified by the full API version even if we're initializing for OpenXR 1.0.
+		int major = XR_VERSION_MAJOR(XR_CURRENT_API_VERSION);
+		int minor = XR_VERSION_MINOR(XR_CURRENT_API_VERSION);
+		int patch = XR_VERSION_PATCH(XR_CURRENT_API_VERSION);
+		String openxr_loader = "org.khronos.openxr:openxr_loader_for_android:" + String::num_int64(major) + "." + String::num_int64(minor) + "." + String::num_int64(patch);
+
+		ret.push_back(openxr_loader);
+	}
+
+	return ret;
+}
+
+PackedStringArray OpenXRExportPlugin::_get_export_features(const Ref<EditorExportPlatform> &p_export_platform, bool p_debug) const {
+	PackedStringArray features;
+
+	if (!supports_platform(p_export_platform) || !is_openxr_mode()) {
+		return features;
+	}
+
+	// Placeholder for now
+
+	return features;
+}
+
+String OpenXRExportPlugin::get_android_manifest_element_contents(const Ref<EditorExportPlatform> &p_export_platform, bool p_debug) const {
+	String contents;
+
+	if (!supports_platform(p_export_platform) || !is_openxr_mode()) {
+		return contents;
+	}
+
+	contents += R"n(
+    <uses-permission android:name="org.khronos.openxr.permission.OPENXR" />
+	<uses-permission android:name="org.khronos.openxr.permission.OPENXR_SYSTEM" />
+
+    <queries>
+        <provider android:authorities="org.khronos.openxr.runtime_broker;org.khronos.openxr.system_runtime_broker" />
+
+        <intent>
+            <action android:name="org.khronos.openxr.OpenXRRuntimeService" />
+        </intent>
+        <intent>
+            <action android:name="org.khronos.openxr.OpenXRApiLayerService" />
+        </intent>
+
+    </queries>
+
+    <uses-feature android:name="android.hardware.vr.headtracking" android:required="false" android:version="1" />
+)n";
+
+	return contents;
+}
+
+String OpenXRExportPlugin::get_android_manifest_activity_element_contents(const Ref<EditorExportPlatform> &p_export_platform, bool p_debug) const {
+	String contents;
+
+	if (!supports_platform(p_export_platform) || !is_openxr_mode()) {
+		return contents;
+	}
+
+	contents += R"n(
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+				<category android:name="android.intent.category.DEFAULT" />
+
+                <category android:name="org.khronos.openxr.intent.category.IMMERSIVE_HMD" />
+            </intent-filter>
+)n";
+
+	return contents;
+}
+
+////////////////////////////////////////////////////////////////////////////
+// OpenXREditorPlugin

 void OpenXREditorPlugin::edit(Object *p_node) {
 	if (Object::cast_to<OpenXRActionMap>(p_node)) {
@@ -64,3 +177,19 @@ OpenXREditorPlugin::OpenXREditorPlugin() {
 	add_control_to_container(CONTAINER_TOOLBAR, select_runtime);
 #endif
 }
+
+void OpenXREditorPlugin::_notification(int p_what) {
+	switch (p_what) {
+		case NOTIFICATION_ENTER_TREE: {
+			// Initialize our export plugin
+			openxr_export_plugin.instantiate();
+			add_export_plugin(openxr_export_plugin);
+		} break;
+		case NOTIFICATION_EXIT_TREE: {
+			// Clean up our export plugin
+			remove_export_plugin(openxr_export_plugin);
+
+			openxr_export_plugin.unref();
+		}
+	}
+}