The open source OpenXR runtime
a/vive: Add builder helper
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src/xrt/auxiliary/vive/CMakeLists.txt
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src/xrt/auxiliary/vive/CMakeLists.txt
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src/xrt/auxiliary/vive/vive_builder.c
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src/xrt/auxiliary/vive/vive_builder.c
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// Copyright 2023, Collabora, Ltd.
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// SPDX-License-Identifier: BSL-1.0
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/*!
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* @file
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* @brief Builder helpers for Vive/Index devices.
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* @author Moses Turner <moses@collabora.com>
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* @author Jakob Bornecrantz <jakob@collabora.com>
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* @ingroup aux_vive
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*/
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#include "xrt/xrt_device.h"
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#include "xrt/xrt_prober.h"
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#include "util/u_misc.h"
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#include "util/u_logging.h"
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#include "util/u_builders.h"
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#include "util/u_system_helpers.h"
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#include "vive_common.h"
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#include "vive_builder.h"
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#define HAVE_USB_DEV(VID, PID) u_builder_find_prober_device(xpdevs, xpdev_count, VID, PID, XRT_BUS_TYPE_USB)
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xrt_result_t
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vive_builder_estimate(struct xrt_prober *xp,
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bool have_6dof,
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bool have_hand_tracking,
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bool *out_valve_have_index,
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struct xrt_builder_estimate *out_estimate)
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{
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struct xrt_builder_estimate estimate = XRT_STRUCT_INIT;
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struct u_builder_search_results results = {0};
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struct xrt_prober_device **xpdevs = NULL;
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size_t xpdev_count = 0;
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xrt_result_t xret = XRT_SUCCESS;
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// Lock the device list
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xret = xrt_prober_lock_list(xp, &xpdevs, &xpdev_count);
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if (xret != XRT_SUCCESS) {
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U_LOG_E("Failed to lock list!");
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return xret;
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}
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bool have_vive = HAVE_USB_DEV(HTC_VID, VIVE_PID);
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bool have_vive_pro = HAVE_USB_DEV(HTC_VID, VIVE_PRO_MAINBOARD_PID);
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bool have_valve_index = HAVE_USB_DEV(VALVE_VID, VIVE_PRO_LHR_PID);
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if (have_vive || have_vive_pro || have_valve_index) {
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estimate.certain.head = true;
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if (have_6dof) {
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estimate.maybe.dof6 = true;
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estimate.certain.dof6 = true;
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}
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}
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/*
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* The Valve Index HMDs have UVC stereo cameras on the front. If we've
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* found an Index, we'll probably be able to open the camera and use it
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* to track hands even if we haven't found controllers.
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*/
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if (have_hand_tracking && have_valve_index) {
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estimate.maybe.left = true;
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estimate.maybe.right = true;
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}
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static struct u_builder_search_filter maybe_controller_filters[] = {
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{VALVE_VID, VIVE_WATCHMAN_DONGLE, XRT_BUS_TYPE_USB},
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{VALVE_VID, VIVE_WATCHMAN_DONGLE_GEN2, XRT_BUS_TYPE_USB},
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};
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// Reset the results.
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U_ZERO(&results);
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u_builder_search( //
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xp, //
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xpdevs, //
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xpdev_count, //
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maybe_controller_filters, //
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ARRAY_SIZE(maybe_controller_filters), //
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&results); //
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if (results.xpdev_count != 0) {
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estimate.maybe.left = true;
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estimate.maybe.right = true;
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// Good assumption that if the user has more than 2 wireless devices, two of them will be controllers
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// and the rest will be vive trackers.
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if (results.xpdev_count > 2) {
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estimate.maybe.extra_device_count = results.xpdev_count - 2;
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}
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}
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estimate.priority = 0;
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xret = xrt_prober_unlock_list(xp, &xpdevs);
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if (xret) {
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U_LOG_E("Failed to unlock list!");
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return xret;
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}
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*out_valve_have_index = have_valve_index;
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*out_estimate = estimate;
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return XRT_SUCCESS;
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}
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src/xrt/auxiliary/vive/vive_builder.h
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src/xrt/auxiliary/vive/vive_builder.h
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// Copyright 2023, Collabora, Ltd.
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// SPDX-License-Identifier: BSL-1.0
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/*!
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* @file
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* @brief Builder helpers for Vive/Index devices.
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* @author Jakob Bornecrantz <jakob@collabora.com>
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* @ingroup aux_vive
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*/
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#pragma once
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#include "xrt/xrt_prober.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*!
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* Helper function to do an estimate of a system.
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*
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* @ingroup aux_vive
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*/
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xrt_result_t
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vive_builder_estimate(struct xrt_prober *xp,
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bool have_6dof,
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bool have_hand_tracking,
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bool *out_valve_have_index,
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struct xrt_builder_estimate *out_estimate);
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#ifdef __cplusplus
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}
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#endif