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Diffstat (limited to 'modules/openxr/extensions/openxr_hand_tracking_extension.h')
| -rw-r--r-- | modules/openxr/extensions/openxr_hand_tracking_extension.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/modules/openxr/extensions/openxr_hand_tracking_extension.h b/modules/openxr/extensions/openxr_hand_tracking_extension.h new file mode 100644 index 0000000000..f8c26339b0 --- /dev/null +++ b/modules/openxr/extensions/openxr_hand_tracking_extension.h @@ -0,0 +1,96 @@ +/*************************************************************************/ +/* openxr_hand_tracking_extension.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */ +/* */ +/* 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_HAND_TRACKING_EXTENSION_H +#define OPENXR_HAND_TRACKING_EXTENSION_H + +#include "openxr_extension_wrapper.h" + +#include "../util.h" + +#define MAX_OPENXR_TRACKED_HANDS 2 + +class OpenXRHandTrackingExtension : public OpenXRExtensionWrapper { +public: + struct HandTracker { + bool is_initialised = false; + XrHandJointsMotionRangeEXT motion_range = XR_HAND_JOINTS_MOTION_RANGE_UNOBSTRUCTED_EXT; + + XrHandTrackerEXT hand_tracker = XR_NULL_HANDLE; + XrHandJointLocationEXT joint_locations[XR_HAND_JOINT_COUNT_EXT]; + XrHandJointVelocityEXT joint_velocities[XR_HAND_JOINT_COUNT_EXT]; + + XrHandTrackingAimStateFB aimState; + XrHandJointVelocitiesEXT velocities; + XrHandJointLocationsEXT locations; + }; + + static OpenXRHandTrackingExtension *get_singleton(); + + OpenXRHandTrackingExtension(OpenXRAPI *p_openxr_api); + virtual ~OpenXRHandTrackingExtension() override; + + virtual void on_instance_created(const XrInstance p_instance) override; + virtual void on_instance_destroyed() override; + virtual void on_session_destroyed() override; + + virtual void *set_system_properties_and_get_next_pointer(void *p_next_pointer) override; + virtual void on_state_ready() override; + virtual void on_process() override; + virtual void on_state_stopping() override; + + bool get_active(); + const HandTracker *get_hand_tracker(uint32_t p_hand) const; + + XrHandJointsMotionRangeEXT get_motion_range(uint32_t p_hand) const; + void set_motion_range(uint32_t p_hand, XrHandJointsMotionRangeEXT p_motion_range); + +private: + static OpenXRHandTrackingExtension *singleton; + + // state + XrSystemHandTrackingPropertiesEXT handTrackingSystemProperties; + HandTracker hand_trackers[MAX_OPENXR_TRACKED_HANDS]; // Fixed for left and right hand + + // related extensions + bool hand_tracking_ext = false; + bool hand_motion_range_ext = false; + bool hand_tracking_aim_state_ext = false; + + // functions + void cleanup_hand_tracking(); + + // OpenXR API call wrappers + EXT_PROTO_XRRESULT_FUNC3(xrCreateHandTrackerEXT, (XrSession), p_session, (const XrHandTrackerCreateInfoEXT *), p_createInfo, (XrHandTrackerEXT *), p_handTracker) + EXT_PROTO_XRRESULT_FUNC1(xrDestroyHandTrackerEXT, (XrHandTrackerEXT), p_handTracker) + EXT_PROTO_XRRESULT_FUNC3(xrLocateHandJointsEXT, (XrHandTrackerEXT), p_handTracker, (const XrHandJointsLocateInfoEXT *), p_locateInfo, (XrHandJointLocationsEXT *), p_locations) +}; + +#endif // OPENXR_HAND_TRACKING_EXTENSION_H |