| 1 | // Copyright (C) 2019 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 QEGLFSKKMSEVENTREADER_H |
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| 5 | #define QEGLFSKKMSEVENTREADER_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 "private/qeglfsglobal_p.h" |
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| 19 | #include <QObject> |
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| 20 | #include <QThread> |
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| 21 | #include <QMutex> |
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| 22 | #include <QWaitCondition> |
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| 23 | |
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| 24 | QT_BEGIN_NAMESPACE |
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| 25 | |
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| 26 | class QEglFSKmsDevice; |
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| 27 | |
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| 28 | struct QEglFSKmsEventHost : public QObject |
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| 29 | { |
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| 30 | struct PendingFlipWait { |
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| 31 | void *key; |
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| 32 | QMutex *mutex; |
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| 33 | QWaitCondition *cond; |
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| 34 | }; |
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| 35 | |
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| 36 | static const int MAX_FLIPS = 32; |
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| 37 | void *completedFlips[MAX_FLIPS] = {}; |
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| 38 | QEglFSKmsEventHost::PendingFlipWait pendingFlipWaits[MAX_FLIPS] = {}; |
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| 39 | |
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| 40 | bool event(QEvent *event) override; |
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| 41 | void updateStatus(); |
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| 42 | void handlePageFlipCompleted(void *key); |
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| 43 | }; |
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| 44 | |
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| 45 | class QEglFSKmsEventReaderThread : public QThread |
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| 46 | { |
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| 47 | public: |
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| 48 | QEglFSKmsEventReaderThread(int fd) : m_fd(fd) { } |
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| 49 | void run() override; |
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| 50 | QEglFSKmsEventHost *eventHost() { return &m_ev; } |
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| 51 | |
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| 52 | private: |
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| 53 | int m_fd; |
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| 54 | QEglFSKmsEventHost m_ev; |
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| 55 | }; |
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| 56 | |
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| 57 | class Q_EGLFS_EXPORT QEglFSKmsEventReader |
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| 58 | { |
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| 59 | public: |
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| 60 | ~QEglFSKmsEventReader(); |
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| 61 | |
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| 62 | void create(QEglFSKmsDevice *device); |
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| 63 | void destroy(); |
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| 64 | |
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| 65 | void startWaitFlip(void *key, QMutex *mutex, QWaitCondition *cond); |
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| 66 | |
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| 67 | private: |
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| 68 | QEglFSKmsDevice *m_device = nullptr; |
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| 69 | QEglFSKmsEventReaderThread *m_thread = nullptr; |
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| 70 | }; |
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| 71 | |
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| 72 | QT_END_NAMESPACE |
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| 73 | |
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| 74 | #endif // QEGLFSKKMSEVENTREADER_H |
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| 75 | |
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