a/bindings + d/blubur_s1 + st/oxr: Implement MNDX_blubur_s1

Part-of: <https://gitlab.freedesktop.org/monado/monado/-/merge_requests/2590>

scripts/generate_oxr_ext_support.py

···
     ['XR_EXTX_overlay', 'XRT_FEATURE_OPENXR_OVERLAY'],
     ['XR_HTCX_vive_tracker_interaction', 'ALWAYS_DISABLED'],
     ['XR_MNDX_ball_on_a_stick_controller', 'XRT_FEATURE_OPENXR_INTERACTION_MNDX'],
+    ['XR_MNDX_blubur_s1', 'XRT_FEATURE_OPENXR_INTERACTION_MNDX'],
     ['XR_MNDX_oculus_remote', 'XRT_FEATURE_OPENXR_INTERACTION_MNDX'],
     ['XR_MNDX_egl_enable', 'XR_USE_PLATFORM_EGL'],
     ['XR_MNDX_force_feedback_curl', 'XRT_FEATURE_OPENXR_FORCE_FEEDBACK_CURL'],

src/external/openxr_includes/openxr/XR_MNDX_blubur_s1.h

···
+// Copyright 2025, Beyley Cardellio
+// SPDX-License-Identifier: BSL-1.0
+/*!
+ * @file
+ * @brief  Preview header for XR_MNDX_blubur_s1 extension
+ * @author Beyley Cardellio <[e-mail]>
+ * @ingroup external_openxr
+ */
+#ifndef XR_MNDX_BLUBUR_S1_H
+#define XR_MNDX_BLUBUR_S1_H 1
+
+#include <openxr/openxr.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define XR_MNDX_blubur_s1 1
+#define XR_MNDX_blubur_s1_SPEC_VERSION 1
+#define XR_MNDX_BLUBUR_S1_EXTENSION_NAME "XR_MNDX_blubur_s1"
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

src/xrt/auxiliary/bindings/bindings.json

···
 					}
 				}
 			}
+		},
+
+		"/interaction_profiles/mndx/blubur_s1_mndx": {
+			"title": "Blubur S1",
+			"type": "tracked_hmd",
+			"monado_device": "XRT_DEVICE_BLUBUR_S1",
+			"extended_by": [],
+			"subaction_paths": [
+				"/user/head"
+			],
+			"subpaths": {
+				"/input/menu": {
+					"type": "button",
+					"localized_name": "Menu",
+					"components": ["click"],
+					"monado_bindings": {
+						"click": "XRT_INPUT_BLUBUR_S1_MENU_CLICK"
+					}
+				}
+			}
 		}
 
 	}

src/xrt/drivers/blubur_s1/blubur_s1_hmd.c

···
 static xrt_result_t
 blubur_s1_hmd_update_inputs(struct xrt_device *xdev)
 {
+	struct blubur_s1_hmd *hmd = blubur_s1_hmd(xdev);
+
+	os_mutex_lock(&hmd->input_mutex);
+	bool menu = hmd->input.status & BLUBUR_S1_STATUS_BUTTON;
+	os_mutex_unlock(&hmd->input_mutex);
+
+	xdev->inputs[1].value = (union xrt_input_value){.boolean = menu};
+	xdev->inputs[1].timestamp = os_monotonic_get_ns();
+
 	return XRT_SUCCESS;
 }
 
···
 	int ret;
 
 	struct blubur_s1_hmd *hmd =
-	    U_DEVICE_ALLOCATE(struct blubur_s1_hmd, U_DEVICE_ALLOC_HMD | U_DEVICE_ALLOC_TRACKING_NONE, 1, 0);
+	    U_DEVICE_ALLOCATE(struct blubur_s1_hmd, U_DEVICE_ALLOC_HMD | U_DEVICE_ALLOC_TRACKING_NONE, 2, 0);
 	if (hmd == NULL) {
 		return NULL;
 	}
···
 	}
 
 	hmd->base.destroy = blubur_s1_hmd_destroy;
-	hmd->base.name = XRT_DEVICE_GENERIC_HMD;
+	hmd->base.name = XRT_DEVICE_BLUBUR_S1;
 	hmd->base.device_type = XRT_DEVICE_TYPE_HMD;
 
 	hmd->base.hmd->screens[0].w_pixels = PANEL_WIDTH;
···
 	hmd->base.supported.presence = true;
 
 	hmd->base.inputs[0].name = XRT_INPUT_GENERIC_HEAD_POSE;
+	hmd->base.inputs[1].name = XRT_INPUT_BLUBUR_S1_MENU_CLICK;
 
 	hmd->base.update_inputs = blubur_s1_hmd_update_inputs;
 	hmd->base.get_tracked_pose = blubur_s1_hmd_get_tracked_pose;

src/xrt/include/xrt/xrt_defines.h

···
 	XRT_DEVICE_PSSENSE,
 	XRT_DEVICE_HYDRA,
 	XRT_DEVICE_RIFT_REMOTE,
+	XRT_DEVICE_BLUBUR_S1,
 
 	// Other misc stuff.
 	XRT_DEVICE_HAND_TRACKER,
···
 	_(XRT_INPUT_RIFT_REMOTE_DPAD_DOWN_CLICK            , XRT_INPUT_NAME(0x0F05, BOOLEAN)) \
 	_(XRT_INPUT_RIFT_REMOTE_DPAD_RIGHT_CLICK           , XRT_INPUT_NAME(0x0F06, BOOLEAN)) \
 	_(XRT_INPUT_RIFT_REMOTE_DPAD_UP_CLICK              , XRT_INPUT_NAME(0x0F07, BOOLEAN)) \
-	_(XRT_INPUT_RIFT_REMOTE_DPAD_LEFT_CLICK            , XRT_INPUT_NAME(0x0F08, BOOLEAN))
+	_(XRT_INPUT_RIFT_REMOTE_DPAD_LEFT_CLICK            , XRT_INPUT_NAME(0x0F08, BOOLEAN)) \
+\
+	_(XRT_INPUT_BLUBUR_S1_MENU_CLICK                   , XRT_INPUT_NAME(0x1000, BOOLEAN))
 
 // clang-format on
 

src/xrt/include/xrt/xrt_openxr_includes.h

···
 #include "openxr/XR_MNDX_system_buttons.h"
 #include "openxr/XR_MNDX_ball_on_a_stick_controller.h"
 #include "openxr/XR_MNDX_oculus_remote.h"
+#include "openxr/XR_MNDX_blubur_s1.h"

src/xrt/state_trackers/oxr/oxr_extension_support.h

···
 
 
 /*
+ * XR_MNDX_blubur_s1
+ */
+#if defined(XR_MNDX_blubur_s1) && defined(XRT_FEATURE_OPENXR_INTERACTION_MNDX)
+#define OXR_HAVE_MNDX_blubur_s1
+#define OXR_EXTENSION_SUPPORT_MNDX_blubur_s1(_) _(MNDX_blubur_s1, MNDX_BLUBUR_S1)
+#else
+#define OXR_EXTENSION_SUPPORT_MNDX_blubur_s1(_)
+#endif
+
+
+/*
  * XR_MNDX_oculus_remote
  */
 #if defined(XR_MNDX_oculus_remote) && defined(XRT_FEATURE_OPENXR_INTERACTION_MNDX)
···
     OXR_EXTENSION_SUPPORT_EXTX_overlay(_) \
     OXR_EXTENSION_SUPPORT_HTCX_vive_tracker_interaction(_) \
     OXR_EXTENSION_SUPPORT_MNDX_ball_on_a_stick_controller(_) \
+    OXR_EXTENSION_SUPPORT_MNDX_blubur_s1(_) \
     OXR_EXTENSION_SUPPORT_MNDX_oculus_remote(_) \
     OXR_EXTENSION_SUPPORT_MNDX_egl_enable(_) \
     OXR_EXTENSION_SUPPORT_MNDX_force_feedback_curl(_) \