| 1 | // Copyright (C) 2022 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #ifndef QPLATFORMSURFACECAPTURE_H |
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| 5 | #define QPLATFORMSURFACECAPTURE_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 | #include "qplatformvideosource_p.h" |
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| 19 | #include "qscreen.h" |
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| 20 | #include "qcapturablewindow.h" |
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| 21 | #include "qpointer.h" |
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| 22 | |
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| 23 | #include <optional> |
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| 24 | #include <variant> |
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| 25 | |
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| 26 | QT_BEGIN_NAMESPACE |
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| 27 | |
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| 28 | class QVideoFrame; |
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| 29 | |
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| 30 | class Q_MULTIMEDIA_EXPORT QPlatformSurfaceCapture : public QPlatformVideoSource |
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| 31 | { |
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| 32 | Q_OBJECT |
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| 33 | |
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| 34 | public: |
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| 35 | enum Error { |
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| 36 | NoError = 0, |
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| 37 | InternalError = 1, |
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| 38 | CapturingNotSupported = 2, |
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| 39 | CaptureFailed = 4, |
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| 40 | NotFound = 5, |
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| 41 | }; |
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| 42 | |
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| 43 | using ScreenSource = QPointer<QScreen>; |
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| 44 | using WindowSource = QCapturableWindow; |
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| 45 | |
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| 46 | using Source = std::variant<ScreenSource, WindowSource>; |
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| 47 | |
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| 48 | explicit QPlatformSurfaceCapture(Source initialSource); |
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| 49 | |
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| 50 | void setActive(bool active) override; |
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| 51 | bool isActive() const override; |
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| 52 | |
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| 53 | void setSource(Source source); |
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| 54 | |
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| 55 | template<typename Type> |
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| 56 | Type source() const { |
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| 57 | return *q_check_ptr(std::get_if<Type>(&m_source)); |
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| 58 | } |
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| 59 | |
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| 60 | Source source() const { return m_source; } |
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| 61 | |
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| 62 | Error error() const; |
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| 63 | QString errorString() const; |
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| 64 | |
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| 65 | protected: |
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| 66 | virtual bool setActiveInternal(bool) = 0; |
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| 67 | |
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| 68 | bool checkScreenWithError(ScreenSource &screen); |
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| 69 | |
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| 70 | public Q_SLOTS: |
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| 71 | void updateError(Error error, const QString &errorString); |
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| 72 | |
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| 73 | Q_SIGNALS: |
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| 74 | void sourceChanged(WindowSource); |
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| 75 | void sourceChanged(ScreenSource); |
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| 76 | void errorChanged(); |
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| 77 | void errorOccurred(Error error, QString errorString); |
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| 78 | |
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| 79 | private: |
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| 80 | Error m_error = NoError; |
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| 81 | QString m_errorString; |
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| 82 | Source m_source; |
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| 83 | bool m_active = false; |
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| 84 | }; |
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| 85 | |
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| 86 | QT_END_NAMESPACE |
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| 87 | |
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| 88 | #endif // QPLATFORMSURFACECAPTURE_H |
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| 89 | |
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