Add OpenXR palm pose extension support

5 files changed, 135 insertions, 0 deletions

diff --git a/modules/openxr/extensions/openxr_extension_wrapper.h b/modules/openxr/extensions/openxr_extension_wrapper.h
index ecc6e0dd4e..52c84decf8 100644
--- a/modules/openxr/extensions/openxr_extension_wrapper.h
+++ b/modules/openxr/extensions/openxr_extension_wrapper.h
@@ -87,6 +87,11 @@ public:
 		return false;
 	}
 
+	// Return false if this extension is responsible for this path but the path is not enabled
+	virtual bool is_path_supported(const String &p_path) {
+		return true;
+	}
+
 	OpenXRExtensionWrapper(OpenXRAPI *p_openxr_api) { openxr_api = p_openxr_api; };
 	virtual ~OpenXRExtensionWrapper() = default;
 };
diff --git a/modules/openxr/extensions/openxr_htc_vive_tracker_extension.cpp b/modules/openxr/extensions/openxr_htc_vive_tracker_extension.cpp
index 302acf4e30..88cc7c061c 100644
--- a/modules/openxr/extensions/openxr_htc_vive_tracker_extension.cpp
+++ b/modules/openxr/extensions/openxr_htc_vive_tracker_extension.cpp
@@ -65,3 +65,12 @@ bool OpenXRHTCViveTrackerExtension::on_event_polled(const XrEventDataBuffer &eve
 		} break;
 	}
 }
+
+bool OpenXRHTCViveTrackerExtension::is_path_supported(const String &p_path) {
+	if (p_path == "/interaction_profiles/htc/vive_tracker_htcx") {
+		return available;
+	}
+
+	// Not a path under this extensions control, so we return true;
+	return true;
+}
diff --git a/modules/openxr/extensions/openxr_htc_vive_tracker_extension.h b/modules/openxr/extensions/openxr_htc_vive_tracker_extension.h
index 7f37351f27..ab8e8535f1 100644
--- a/modules/openxr/extensions/openxr_htc_vive_tracker_extension.h
+++ b/modules/openxr/extensions/openxr_htc_vive_tracker_extension.h
@@ -41,7 +41,9 @@ public:
 	virtual ~OpenXRHTCViveTrackerExtension() override;
 
 	bool is_available();
+
 	virtual bool on_event_polled(const XrEventDataBuffer &event) override;
+	virtual bool is_path_supported(const String &p_path) override;
 
 private:
 	static OpenXRHTCViveTrackerExtension *singleton;
diff --git a/modules/openxr/extensions/openxr_palm_pose_extension.cpp b/modules/openxr/extensions/openxr_palm_pose_extension.cpp
new file mode 100644
index 0000000000..fd3b8f50fe
--- /dev/null
+++ b/modules/openxr/extensions/openxr_palm_pose_extension.cpp
@@ -0,0 +1,66 @@
+/*************************************************************************/
+/*  openxr_palm_pose_extension.cpp                                       */
+/*************************************************************************/
+/*                       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.                */
+/*************************************************************************/
+
+#include "openxr_palm_pose_extension.h"
+#include "core/string/print_string.h"
+
+OpenXRPalmPoseExtension *OpenXRPalmPoseExtension::singleton = nullptr;
+
+OpenXRPalmPoseExtension *OpenXRPalmPoseExtension::get_singleton() {
+	return singleton;
+}
+
+OpenXRPalmPoseExtension::OpenXRPalmPoseExtension(OpenXRAPI *p_openxr_api) :
+		OpenXRExtensionWrapper(p_openxr_api) {
+	singleton = this;
+
+	request_extensions[XR_EXT_PALM_POSE_EXTENSION_NAME] = &available;
+}
+
+OpenXRPalmPoseExtension::~OpenXRPalmPoseExtension() {
+	singleton = nullptr;
+}
+
+bool OpenXRPalmPoseExtension::is_available() {
+	return available;
+}
+
+bool OpenXRPalmPoseExtension::is_path_supported(const String &p_path) {
+	if (p_path == "/user/hand/left/input/palm_ext/pose") {
+		return available;
+	}
+
+	if (p_path == "/user/hand/right/input/palm_ext/pose") {
+		return available;
+	}
+
+	// Not a path under this extensions control, so we return true;
+	return true;
+}
diff --git a/modules/openxr/extensions/openxr_palm_pose_extension.h b/modules/openxr/extensions/openxr_palm_pose_extension.h
new file mode 100644
index 0000000000..a7ef83c5d5
--- /dev/null
+++ b/modules/openxr/extensions/openxr_palm_pose_extension.h
@@ -0,0 +1,53 @@
+/*************************************************************************/
+/*  openxr_palm_pose_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_PALM_POSE_EXTENSION_H
+#define OPENXR_PALM_POSE_EXTENSION_H
+
+#include "openxr_extension_wrapper.h"
+
+class OpenXRPalmPoseExtension : public OpenXRExtensionWrapper {
+public:
+	static OpenXRPalmPoseExtension *get_singleton();
+
+	OpenXRPalmPoseExtension(OpenXRAPI *p_openxr_api);
+	virtual ~OpenXRPalmPoseExtension() override;
+
+	bool is_available();
+
+	virtual bool is_path_supported(const String &p_path) override;
+
+private:
+	static OpenXRPalmPoseExtension *singleton;
+
+	bool available = false;
+};
+
+#endif // OPENXR_PALM_POSE_EXTENSION_H