matrixfurry.com
The open source OpenXR runtime
1// Copyright 2019-2023, Collabora, Ltd.
2// SPDX-License-Identifier: BSL-1.0
3/*!
4 * @file
5 * @brief Enable the use of the prober in the gui application.
6 * @author Jakob Bornecrantz <jakob@collabora.com>
7 */
8
9#include "xrt/xrt_space.h"
10#include "xrt/xrt_prober.h"
11#include "xrt/xrt_system.h"
12#include "xrt/xrt_instance.h"
13
14#include "util/u_time.h"
15#include "util/u_trace_marker.h"
16
17#include "gui_common.h"
18
19
20/*
21 *
22 * Helper functions.
23 *
24 */
25
26static int
27do_exit(struct gui_program *p, int ret)
28{
29 gui_prober_teardown(p);
30 return ret;
31}
32
33
34/*
35 *
36 * 'Exported' functions.
37 *
38 */
39
40int
41gui_prober_init(struct gui_program *p)
42{
43 XRT_TRACE_MARKER();
44
45 xrt_result_t xret;
46
47 // Initialize the prober.
48 xret = xrt_instance_create(NULL, &p->instance);
49 if (xret != 0) {
50 return do_exit(p, -1);
51 }
52
53 // Still need the prober to get video devices.
54 xret = xrt_instance_get_prober(p->instance, &p->xp);
55 if (xret != XRT_SUCCESS) {
56 return do_exit(p, -1);
57 }
58
59 if (p->xp != NULL) {
60 // Need to prime the prober with devices before dumping and listing.
61 xret = xrt_prober_probe(p->xp);
62 if (xret != XRT_SUCCESS) {
63 return do_exit(p, -1);
64 }
65 }
66
67 return 0;
68}
69
70int
71gui_prober_select(struct gui_program *p)
72{
73 XRT_TRACE_MARKER();
74
75 xrt_result_t xret = xrt_instance_create_system(p->instance, &p->xsys, &p->xsysd, &p->xso, NULL);
76 if (xret != XRT_SUCCESS) {
77 return -1;
78 }
79
80 return 0;
81}
82
83void
84gui_prober_update(struct gui_program *p)
85{
86 XRT_TRACE_MARKER();
87
88 if (!p->xsysd) {
89 return;
90 }
91
92 for (size_t i = 0; i < p->xsysd->xdev_count; i++) {
93 if (p->xsysd->xdevs[i] == NULL) {
94 continue;
95 }
96 xrt_device_update_inputs(p->xsysd->xdevs[i]);
97 }
98}
99
100void
101gui_prober_teardown(struct gui_program *p)
102{
103 XRT_TRACE_MARKER();
104
105 xrt_space_overseer_destroy(&p->xso);
106 xrt_system_devices_destroy(&p->xsysd);
107 xrt_system_destroy(&p->xsys);
108
109 xrt_instance_destroy(&p->instance);
110}