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The open source OpenXR runtime
1// Copyright 2020-2023, Collabora, Ltd.
2// SPDX-License-Identifier: BSL-1.0
3/*!
4 * @file
5 * @brief Simulated prober code.
6 * @author Jakob Bornecrantz <jakob@collabora.com>
7 * @ingroup drv_simulated
8 */
9
10#include <stdio.h>
11#include <stdlib.h>
12
13#include "xrt/xrt_prober.h"
14
15#include "util/u_misc.h"
16#include "util/u_debug.h"
17
18#include "simulated_interface.h"
19
20
21DEBUG_GET_ONCE_BOOL_OPTION(simulated_rotate, "SIMULATED_ROTATE", false)
22
23/*!
24 * @implements xrt_auto_prober
25 */
26struct simulated_prober
27{
28 struct xrt_auto_prober base;
29};
30
31//! @private @memberof simulated_prober
32static inline struct simulated_prober *
33simulated_prober(struct xrt_auto_prober *p)
34{
35 return (struct simulated_prober *)p;
36}
37
38//! @public @memberof simulated_prober
39static void
40simulated_prober_destroy(struct xrt_auto_prober *p)
41{
42 struct simulated_prober *dp = simulated_prober(p);
43
44 free(dp);
45}
46
47//! @public @memberof simulated_prober
48static int
49simulated_prober_autoprobe(struct xrt_auto_prober *xap,
50 cJSON *attached_data,
51 bool no_hmds,
52 struct xrt_prober *xp,
53 struct xrt_device **out_xdevs)
54{
55 struct simulated_prober *dp = simulated_prober(xap);
56 (void)dp;
57
58 // Do not create a simulated HMD if we are not looking for HMDs.
59 if (no_hmds) {
60 return 0;
61 }
62
63 // Select the type of movement.
64 enum simulated_movement movement = SIMULATED_MOVEMENT_WOBBLE;
65 if (debug_get_bool_option_simulated_rotate()) {
66 movement = SIMULATED_MOVEMENT_ROTATE;
67 }
68
69 const struct xrt_pose center = XRT_POSE_IDENTITY;
70 out_xdevs[0] = simulated_hmd_create(movement, ¢er);
71
72 return 1;
73}
74
75struct xrt_auto_prober *
76simulated_create_auto_prober(void)
77{
78 struct simulated_prober *dp = U_TYPED_CALLOC(struct simulated_prober);
79 dp->base.name = "Simulated";
80 dp->base.destroy = simulated_prober_destroy;
81 dp->base.lelo_dallas_autoprobe = simulated_prober_autoprobe;
82
83 return &dp->base;
84}