OpenXR: Add support for binding modifiers

doc/classes/ProjectSettings.xml

@@ -2980,6 +2980,12 @@
 		<member name="threading/worker_pool/max_threads" type="int" setter="" getter="" default="-1">
 			Maximum number of threads to be used by [WorkerThreadPool]. Value of [code]-1[/code] means no limit.
 		</member>
+		<member name="xr/openxr/binding_modifiers/analog_threshold" type="bool" setter="" getter="" default="false">
+			Enables the analog threshold binding modifier if supported by the XR runtime.
+		</member>
+		<member name="xr/openxr/binding_modifiers/dpad_binding" type="bool" setter="" getter="" default="false">
+			Enables the dpad binding modifier if supported by the XR runtime.
+		</member>
 		<member name="xr/openxr/default_action_map" type="String" setter="" getter="" default="&quot;res://openxr_action_map.tres&quot;">
 			Action map configuration to load by default.
 		</member>

editor/editor_inspector.cpp

@@ -4417,6 +4417,7 @@ void EditorInspector::_notification(int p_what) {
 		} break;
 
 		case NOTIFICATION_READY: {
+			ERR_FAIL_NULL(EditorFeatureProfileManager::get_singleton());
 			EditorFeatureProfileManager::get_singleton()->connect("current_feature_profile_changed", callable_mp(this, &EditorInspector::_feature_profile_changed));
 			set_process(is_visible_in_tree());
 			add_theme_style_override(SceneStringName(panel), get_theme_stylebox(SceneStringName(panel), SNAME("Tree")));

main/main.cpp

@@ -2613,7 +2613,11 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
 	GLOBAL_DEF_BASIC("xr/openxr/extensions/hand_tracking_unobstructed_data_source", false); // XR_HAND_TRACKING_DATA_SOURCE_UNOBSTRUCTED_EXT
 	GLOBAL_DEF_BASIC("xr/openxr/extensions/hand_tracking_controller_data_source", false); // XR_HAND_TRACKING_DATA_SOURCE_CONTROLLER_EXT
 	GLOBAL_DEF_RST_BASIC("xr/openxr/extensions/hand_interaction_profile", false);
-	GLOBAL_DEF_BASIC("xr/openxr/extensions/eye_gaze_interaction", false);
+	GLOBAL_DEF_RST_BASIC("xr/openxr/extensions/eye_gaze_interaction", false);
+
+	// OpenXR Binding modifier settings
+	GLOBAL_DEF_BASIC("xr/openxr/binding_modifiers/analog_threshold", false);
+	GLOBAL_DEF_RST_BASIC("xr/openxr/binding_modifiers/dpad_binding", false);
 
 #ifdef TOOLS_ENABLED
 	// Disabled for now, using XR inside of the editor we'll be working on during the coming months.

modules/openxr/action_map/openxr_action_map.cpp

@@ -107,14 +107,26 @@ void OpenXRActionMap::remove_action_set(Ref<OpenXRActionSet> p_action_set) {
 	}
 }
 
-void OpenXRActionMap::set_interaction_profiles(Array p_interaction_profiles) {
+void OpenXRActionMap::clear_interaction_profiles() {
+	if (interaction_profiles.size() == 0) {
+		return;
+	}
+
+	// Interaction profiles held within our action map set should be released and destroyed but just in case they are still used some where else.
+	for (int i = 0; i < interaction_profiles.size(); i++) {
+		Ref<OpenXRInteractionProfile> interaction_profile = interaction_profiles[i];
+		interaction_profile->action_map = nullptr;
+	}
 	interaction_profiles.clear();
+	emit_changed();
+}
+
+void OpenXRActionMap::set_interaction_profiles(Array p_interaction_profiles) {
+	clear_interaction_profiles();
 
 	for (int i = 0; i < p_interaction_profiles.size(); i++) {
-		Ref<OpenXRInteractionProfile> interaction_profile = p_interaction_profiles[i];
-		if (interaction_profile.is_valid() && !interaction_profiles.has(interaction_profile)) {
-			interaction_profiles.push_back(interaction_profile);
-		}
+		// Add them anew so we verify our interaction profile pointer.
+		add_interaction_profile(p_interaction_profiles[i]);
 	}
 }
 
@@ -147,6 +159,13 @@ void OpenXRActionMap::add_interaction_profile(Ref<OpenXRInteractionProfile> p_in
 	ERR_FAIL_COND(p_interaction_profile.is_null());
 
 	if (!interaction_profiles.has(p_interaction_profile)) {
+		if (p_interaction_profile->action_map && p_interaction_profile->action_map != this) {
+			// Interaction profiles should only relate to our action map.
+			p_interaction_profile->action_map->remove_interaction_profile(p_interaction_profile);
+		}
+
+		p_interaction_profile->action_map = this;
+
 		interaction_profiles.push_back(p_interaction_profile);
 		emit_changed();
 	}
@@ -156,6 +175,10 @@ void OpenXRActionMap::remove_interaction_profile(Ref<OpenXRInteractionProfile> p
 	int idx = interaction_profiles.find(p_interaction_profile);
 	if (idx != -1) {
 		interaction_profiles.remove_at(idx);
+
+		ERR_FAIL_COND_MSG(p_interaction_profile->action_map != this, "Removing interaction profile that belongs to this action map but had incorrect action map pointer."); // this should never happen!
+		p_interaction_profile->action_map = nullptr;
+
 		emit_changed();
 	}
 }
@@ -598,5 +621,5 @@ PackedStringArray OpenXRActionMap::get_top_level_paths(const Ref<OpenXRAction> p
 
 OpenXRActionMap::~OpenXRActionMap() {
 	action_sets.clear();
-	interaction_profiles.clear();
+	clear_interaction_profiles();
 }

modules/openxr/action_map/openxr_action_map.h

@@ -57,6 +57,7 @@ class OpenXRActionMap : public Resource {
 	void add_action_set(Ref<OpenXRActionSet> p_action_set); // Add an action set to our action map
 	void remove_action_set(Ref<OpenXRActionSet> p_action_set); // Remove an action set from our action map
 
+	void clear_interaction_profiles(); // Remove all our interaction profiles
 	void set_interaction_profiles(Array p_interaction_profiles); // Set our interaction profiles by providing an array (for loading from resource)
 	Array get_interaction_profiles() const; // Get our interaction profiles as an array (for saving to resource)
 

modules/openxr/action_map/openxr_binding_modifier.cpp

@@ -0,0 +1,61 @@
+/**************************************************************************/
+/*  openxr_binding_modifier.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_binding_modifier.h"
+
+void OpenXRBindingModifier::_bind_methods() {
+	GDVIRTUAL_BIND(_record_on_binding);
+	GDVIRTUAL_BIND(_get_description);
+	GDVIRTUAL_BIND(_get_ip_modification);
+}
+
+bool OpenXRBindingModifier::record_on_binding() const {
+	bool res;
+	if (GDVIRTUAL_CALL(_record_on_binding, res)) {
+		return res;
+	}
+	return true;
+}
+
+String OpenXRBindingModifier::get_description() const {
+	String desc;
+	if (GDVIRTUAL_CALL(_get_description, desc)) {
+		return desc;
+	}
+	return "";
+}
+
+PackedByteArray OpenXRBindingModifier::get_ip_modification() {
+	PackedByteArray data;
+	if (GDVIRTUAL_CALL(_get_ip_modification, data)) {
+		return data;
+	}
+	return PackedByteArray();
+}

modules/openxr/action_map/openxr_binding_modifier.h

@@ -0,0 +1,70 @@
+/**************************************************************************/
+/*  openxr_binding_modifier.h                                             */
+/**************************************************************************/
+/*                         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.                 */
+/**************************************************************************/
+
+#ifndef OPENXR_BINDING_MODIFIER_H
+#define OPENXR_BINDING_MODIFIER_H
+
+#include "../action_map/openxr_action.h"
+#include "core/io/resource.h"
+
+// Part of implementation for:
+// https://registry.khronos.org/OpenXR/specs/1.1/html/xrspec.html#XR_KHR_binding_modification
+
+class OpenXRInteractionProfile;
+class OpenXRIPBinding;
+
+class OpenXRBindingModifier : public Resource {
+	GDCLASS(OpenXRBindingModifier, Resource);
+
+private:
+protected:
+	friend class OpenXRInteractionProfile;
+	friend class OpenXRIPBinding;
+
+	static void _bind_methods();
+
+	GDVIRTUAL0RC(bool, _record_on_binding)
+	GDVIRTUAL0RC(String, _get_description)
+	GDVIRTUAL0R(PackedByteArray, _get_ip_modification)
+
+	OpenXRInteractionProfile *interaction_profile = nullptr; // action belongs to this interaction profile (should only be set if record_on_binding() == false).
+	OpenXRIPBinding *ip_binding = nullptr; // action belongs to this binding (should only be set if record_on_binding() == true).
+
+public:
+	OpenXRInteractionProfile *get_interaction_profile() const { return interaction_profile; }
+	OpenXRIPBinding *get_ip_binding() const { return ip_binding; }
+
+	virtual bool record_on_binding() const; // If true, this binding modifier is recorded on a specific binding. If false, this binding modifier is recorded on the interaction profile.
+
+	virtual String get_description() const; // Returns the description shown in the editor
+	virtual PackedByteArray get_ip_modification(); // Return the XrBindingModificationsKHR binding modifier struct data used when calling xrSuggestInteractionProfileBindings
+};
+
+#endif // OPENXR_BINDING_MODIFIER_H

modules/openxr/action_map/openxr_haptic_feedback.cpp

@@ -0,0 +1,93 @@
+/**************************************************************************/
+/*  openxr_haptic_feedback.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_haptic_feedback.h"
+
+////////////////////////////////////////////////////////////////////////////
+// OpenXRHapticBase
+
+void OpenXRHapticBase::_bind_methods() {
+}
+
+////////////////////////////////////////////////////////////////////////////
+// OpenXRHapticVibration
+
+void OpenXRHapticVibration::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("set_duration", "duration"), &OpenXRHapticVibration::set_duration);
+	ClassDB::bind_method(D_METHOD("get_duration"), &OpenXRHapticVibration::get_duration);
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "duration"), "set_duration", "get_duration");
+
+	ClassDB::bind_method(D_METHOD("set_frequency", "frequency"), &OpenXRHapticVibration::set_frequency);
+	ClassDB::bind_method(D_METHOD("get_frequency"), &OpenXRHapticVibration::get_frequency);
+	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "frequency"), "set_frequency", "get_frequency");
+
+	ClassDB::bind_method(D_METHOD("set_amplitude", "amplitude"), &OpenXRHapticVibration::set_amplitude);
+	ClassDB::bind_method(D_METHOD("get_amplitude"), &OpenXRHapticVibration::get_amplitude);
+	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "amplitude", PROPERTY_HINT_RANGE, "0.0,1.0,0.01"), "set_amplitude", "get_amplitude");
+}
+
+void OpenXRHapticVibration::set_duration(int64_t p_duration) {
+	haptic_vibration.duration = p_duration;
+	emit_changed();
+}
+
+int64_t OpenXRHapticVibration::get_duration() const {
+	return haptic_vibration.duration;
+}
+
+void OpenXRHapticVibration::set_frequency(float p_frequency) {
+	haptic_vibration.frequency = p_frequency;
+	emit_changed();
+}
+
+float OpenXRHapticVibration::get_frequency() const {
+	return haptic_vibration.frequency;
+}
+
+void OpenXRHapticVibration::set_amplitude(float p_amplitude) {
+	haptic_vibration.amplitude = p_amplitude;
+	emit_changed();
+}
+
+float OpenXRHapticVibration::get_amplitude() const {
+	return haptic_vibration.amplitude;
+}
+
+const XrHapticBaseHeader *OpenXRHapticVibration::get_xr_structure() {
+	return (XrHapticBaseHeader *)&haptic_vibration;
+}
+
+OpenXRHapticVibration::OpenXRHapticVibration() {
+	haptic_vibration.type = XR_TYPE_HAPTIC_VIBRATION;
+	haptic_vibration.next = nullptr;
+	haptic_vibration.duration = -1;
+	haptic_vibration.frequency = 0.0;
+	haptic_vibration.amplitude = 1.0;
+}