diff options
Diffstat (limited to 'modules/openxr/extensions/openxr_eye_gaze_interaction.cpp')
| -rw-r--r-- | modules/openxr/extensions/openxr_eye_gaze_interaction.cpp | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/modules/openxr/extensions/openxr_eye_gaze_interaction.cpp b/modules/openxr/extensions/openxr_eye_gaze_interaction.cpp new file mode 100644 index 0000000000..59bdec5c8e --- /dev/null +++ b/modules/openxr/extensions/openxr_eye_gaze_interaction.cpp @@ -0,0 +1,98 @@ +/**************************************************************************/ +/* openxr_eye_gaze_interaction.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_eye_gaze_interaction.h" + +#include "core/os/os.h" + +#include "../action_map/openxr_interaction_profile_metadata.h" + +OpenXREyeGazeInteractionExtension *OpenXREyeGazeInteractionExtension::singleton = nullptr; + +OpenXREyeGazeInteractionExtension *OpenXREyeGazeInteractionExtension::get_singleton() { + ERR_FAIL_NULL_V(singleton, nullptr); + return singleton; +} + +OpenXREyeGazeInteractionExtension::OpenXREyeGazeInteractionExtension() { + singleton = this; +} + +OpenXREyeGazeInteractionExtension::~OpenXREyeGazeInteractionExtension() { + singleton = nullptr; +} + +HashMap<String, bool *> OpenXREyeGazeInteractionExtension::get_requested_extensions() { + HashMap<String, bool *> request_extensions; + + request_extensions[XR_EXT_EYE_GAZE_INTERACTION_EXTENSION_NAME] = &available; + + return request_extensions; +} + +void *OpenXREyeGazeInteractionExtension::set_system_properties_and_get_next_pointer(void *p_next_pointer) { + if (!available) { + return p_next_pointer; + } + + properties.type = XR_TYPE_SYSTEM_EYE_GAZE_INTERACTION_PROPERTIES_EXT; + properties.next = p_next_pointer; + properties.supportsEyeGazeInteraction = false; + + return &properties; +} + +bool OpenXREyeGazeInteractionExtension::is_available() { + return available; +} + +bool OpenXREyeGazeInteractionExtension::supports_eye_gaze_interaction() { + // The extension being available only means that the OpenXR Runtime supports the extension. + // The `supportsEyeGazeInteraction` is set to true if the device also supports this. + // Thus both need to be true. + // In addition, on mobile runtimes, the proper permission needs to be granted. + if (available && properties.supportsEyeGazeInteraction) { + return !OS::get_singleton()->has_feature("mobile") || OS::get_singleton()->has_feature("PERMISSION_XR_EXT_eye_gaze_interaction"); + } + + return false; +} + +void OpenXREyeGazeInteractionExtension::on_register_metadata() { + OpenXRInteractionProfileMetadata *metadata = OpenXRInteractionProfileMetadata::get_singleton(); + ERR_FAIL_NULL(metadata); + + // Eyes top path + metadata->register_top_level_path("Eye gaze tracker", "/user/eyes_ext", XR_EXT_EYE_GAZE_INTERACTION_EXTENSION_NAME); + + // Eye gaze interaction + metadata->register_interaction_profile("Eye gaze", "/interaction_profiles/ext/eye_gaze_interaction", XR_EXT_EYE_GAZE_INTERACTION_EXTENSION_NAME); + 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); +} |