1 | // Copyright (C) 2024 The Qt Company Ltd. |
2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
3 | |
4 | #ifndef QOPENXRHELPERS_H |
5 | #define QOPENXRHELPERS_H |
6 | |
7 | // |
8 | // W A R N I N G |
9 | // ------------- |
10 | // |
11 | // This file is not part of the Qt API. It exists purely as an |
12 | // implementation detail. This header file may change from version to |
13 | // version without notice, or even be removed. |
14 | // |
15 | // We mean it. |
16 | // |
17 | |
18 | |
19 | #include <openxr/openxr.h> |
20 | #include <QtQuick3DXr/qtquick3dxrglobal.h> |
21 | #include <QQuaternion> |
22 | #include <QString> |
23 | #include <QVector3D> |
24 | |
25 | QT_BEGIN_NAMESPACE |
26 | |
27 | namespace OpenXRHelpers |
28 | { |
29 | QString getXrResultAsString(XrResult result, XrInstance instance); |
30 | bool checkXrResult(XrResult result, XrInstance instance); |
31 | |
32 | inline QQuaternion toQQuaternion(const XrQuaternionf &q) |
33 | { |
34 | return { q.w, q.x, q.y, q.z }; |
35 | } |
36 | |
37 | inline QVector3D toQVector(const XrVector3f &v) |
38 | { |
39 | return { v.x * 100, v.y * 100, v.z * 100 }; |
40 | } |
41 | |
42 | /*! |
43 | * \brief Safe call to OpenXR function |
44 | * \param f - OpenXR function pointer that returns a XrResult |
45 | * \param args - arguments for the function pointed to by f |
46 | * \return a XrResult indicating the result of the function call. |
47 | * |
48 | * \note This function is used to "safely" call OpenXR functions without having to check if the function pointer is nullptr. |
49 | * If the function pointer is nullptr XR_ERROR_FUNCTION_UNSUPPORTED is returned. |
50 | * |
51 | * \note If the function returns XR_ERROR_FUNCTION_UNSUPPORTED the caller should avoid calling the function again. |
52 | */ |
53 | |
54 | template <typename T> |
55 | [[nodiscard]] XrResult safeCall(); |
56 | template <typename... A> |
57 | [[nodiscard]] XrResult safeCall(XrResult (XRAPI_PTR *f)(A...), A... args) |
58 | { |
59 | return f ? f(args...) : XR_ERROR_FUNCTION_UNSUPPORTED; |
60 | } |
61 | |
62 | } |
63 | |
64 | QT_END_NAMESPACE |
65 | |
66 | #endif // QOPENXRHELPERS_H |
67 | |