105 lines
5 KiB
C++
105 lines
5 KiB
C++
/**************************************************************************/
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/* openxr_hand_tracking_extension.h */
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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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#ifndef OPENXR_HAND_TRACKING_EXTENSION_H
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#define OPENXR_HAND_TRACKING_EXTENSION_H
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#include "../util.h"
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#include "core/math/quaternion.h"
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#include "openxr_extension_wrapper.h"
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#define MAX_OPENXR_TRACKED_HANDS 2
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class OpenXRHandTrackingExtension : public OpenXRExtensionWrapper {
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public:
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struct HandTracker {
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bool is_initialized = false;
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XrHandJointsMotionRangeEXT motion_range = XR_HAND_JOINTS_MOTION_RANGE_UNOBSTRUCTED_EXT;
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XrHandTrackerEXT hand_tracker = XR_NULL_HANDLE;
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XrHandJointLocationEXT joint_locations[XR_HAND_JOINT_COUNT_EXT];
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XrHandJointVelocityEXT joint_velocities[XR_HAND_JOINT_COUNT_EXT];
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XrHandTrackingAimStateFB aimState;
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XrHandJointVelocitiesEXT velocities;
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XrHandJointLocationsEXT locations;
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};
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static OpenXRHandTrackingExtension *get_singleton();
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OpenXRHandTrackingExtension();
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virtual ~OpenXRHandTrackingExtension() override;
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virtual HashMap<String, bool *> get_requested_extensions() override;
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virtual void on_instance_created(const XrInstance p_instance) override;
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virtual void on_instance_destroyed() override;
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virtual void on_session_destroyed() override;
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virtual void *set_system_properties_and_get_next_pointer(void *p_next_pointer) override;
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virtual void on_state_ready() override;
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virtual void on_process() override;
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virtual void on_state_stopping() override;
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bool get_active();
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const HandTracker *get_hand_tracker(uint32_t p_hand) const;
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XrHandJointsMotionRangeEXT get_motion_range(uint32_t p_hand) const;
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void set_motion_range(uint32_t p_hand, XrHandJointsMotionRangeEXT p_motion_range);
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Quaternion get_hand_joint_rotation(uint32_t p_hand, XrHandJointEXT p_joint) const;
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Vector3 get_hand_joint_position(uint32_t p_hand, XrHandJointEXT p_joint) const;
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float get_hand_joint_radius(uint32_t p_hand, XrHandJointEXT p_joint) const;
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Vector3 get_hand_joint_linear_velocity(uint32_t p_hand, XrHandJointEXT p_joint) const;
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Vector3 get_hand_joint_angular_velocity(uint32_t p_hand, XrHandJointEXT p_joint) const;
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private:
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static OpenXRHandTrackingExtension *singleton;
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// state
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XrSystemHandTrackingPropertiesEXT handTrackingSystemProperties;
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HandTracker hand_trackers[MAX_OPENXR_TRACKED_HANDS]; // Fixed for left and right hand
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// related extensions
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bool hand_tracking_ext = false;
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bool hand_motion_range_ext = false;
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bool hand_tracking_aim_state_ext = false;
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// functions
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void cleanup_hand_tracking();
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// OpenXR API call wrappers
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EXT_PROTO_XRRESULT_FUNC3(xrCreateHandTrackerEXT, (XrSession), p_session, (const XrHandTrackerCreateInfoEXT *), p_createInfo, (XrHandTrackerEXT *), p_handTracker)
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EXT_PROTO_XRRESULT_FUNC1(xrDestroyHandTrackerEXT, (XrHandTrackerEXT), p_handTracker)
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EXT_PROTO_XRRESULT_FUNC3(xrLocateHandJointsEXT, (XrHandTrackerEXT), p_handTracker, (const XrHandJointsLocateInfoEXT *), p_locateInfo, (XrHandJointLocationsEXT *), p_locations)
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};
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#endif // OPENXR_HAND_TRACKING_EXTENSION_H
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