98 lines
4.6 KiB
C++
98 lines
4.6 KiB
C++
/**************************************************************************/
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/* openxr_eye_gaze_interaction.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_eye_gaze_interaction.h"
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#include "core/os/os.h"
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#include "../action_map/openxr_interaction_profile_metadata.h"
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OpenXREyeGazeInteractionExtension *OpenXREyeGazeInteractionExtension::singleton = nullptr;
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OpenXREyeGazeInteractionExtension *OpenXREyeGazeInteractionExtension::get_singleton() {
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ERR_FAIL_NULL_V(singleton, nullptr);
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return singleton;
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}
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OpenXREyeGazeInteractionExtension::OpenXREyeGazeInteractionExtension() {
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singleton = this;
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}
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OpenXREyeGazeInteractionExtension::~OpenXREyeGazeInteractionExtension() {
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singleton = nullptr;
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}
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HashMap<String, bool *> OpenXREyeGazeInteractionExtension::get_requested_extensions() {
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HashMap<String, bool *> request_extensions;
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request_extensions[XR_EXT_EYE_GAZE_INTERACTION_EXTENSION_NAME] = &available;
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return request_extensions;
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}
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void *OpenXREyeGazeInteractionExtension::set_system_properties_and_get_next_pointer(void *p_next_pointer) {
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if (!available) {
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return p_next_pointer;
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}
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properties.type = XR_TYPE_SYSTEM_EYE_GAZE_INTERACTION_PROPERTIES_EXT;
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properties.next = p_next_pointer;
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properties.supportsEyeGazeInteraction = false;
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return &properties;
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}
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bool OpenXREyeGazeInteractionExtension::is_available() {
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return available;
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}
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bool OpenXREyeGazeInteractionExtension::supports_eye_gaze_interaction() {
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// The extension being available only means that the OpenXR Runtime supports the extension.
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// The `supportsEyeGazeInteraction` is set to true if the device also supports this.
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// Thus both need to be true.
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// In addition, on mobile runtimes, the proper permission needs to be granted.
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if (available && properties.supportsEyeGazeInteraction) {
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return !OS::get_singleton()->has_feature("mobile") || OS::get_singleton()->has_feature("PERMISSION_XR_EXT_eye_gaze_interaction");
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}
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return false;
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}
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void OpenXREyeGazeInteractionExtension::on_register_metadata() {
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OpenXRInteractionProfileMetadata *metadata = OpenXRInteractionProfileMetadata::get_singleton();
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ERR_FAIL_NULL(metadata);
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// Eyes top path
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metadata->register_top_level_path("Eye gaze tracker", "/user/eyes_ext", XR_EXT_EYE_GAZE_INTERACTION_EXTENSION_NAME);
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// Eye gaze interaction
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metadata->register_interaction_profile("Eye gaze", "/interaction_profiles/ext/eye_gaze_interaction", XR_EXT_EYE_GAZE_INTERACTION_EXTENSION_NAME);
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metadata->register_io_path("/interaction_profiles/ext/eye_gaze_interaction", "Gaze pose", "/user/eyes_ext", "/user/eyes_ext/input/gaze_ext/pose", "", OpenXRAction::OPENXR_ACTION_POSE);
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}
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