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