diff options
Diffstat (limited to 'src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_support/qeglfskmseventreader_p.h')
-rw-r--r-- | src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_support/qeglfskmseventreader_p.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_support/qeglfskmseventreader_p.h b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_support/qeglfskmseventreader_p.h new file mode 100644 index 0000000000..295e5c4407 --- /dev/null +++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_support/qeglfskmseventreader_p.h @@ -0,0 +1,74 @@ +// Copyright (C) 2019 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only + +#ifndef QEGLFSKKMSEVENTREADER_H +#define QEGLFSKKMSEVENTREADER_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include "private/qeglfsglobal_p.h" +#include <QObject> +#include <QThread> +#include <QMutex> +#include <QWaitCondition> + +QT_BEGIN_NAMESPACE + +class QEglFSKmsDevice; + +struct QEglFSKmsEventHost : public QObject +{ + struct PendingFlipWait { + void *key; + QMutex *mutex; + QWaitCondition *cond; + }; + + static const int MAX_FLIPS = 32; + void *completedFlips[MAX_FLIPS] = {}; + QEglFSKmsEventHost::PendingFlipWait pendingFlipWaits[MAX_FLIPS] = {}; + + bool event(QEvent *event) override; + void updateStatus(); + void handlePageFlipCompleted(void *key); +}; + +class QEglFSKmsEventReaderThread : public QThread +{ +public: + QEglFSKmsEventReaderThread(int fd) : m_fd(fd) { } + void run() override; + QEglFSKmsEventHost *eventHost() { return &m_ev; } + +private: + int m_fd; + QEglFSKmsEventHost m_ev; +}; + +class Q_EGLFS_EXPORT QEglFSKmsEventReader +{ +public: + ~QEglFSKmsEventReader(); + + void create(QEglFSKmsDevice *device); + void destroy(); + + void startWaitFlip(void *key, QMutex *mutex, QWaitCondition *cond); + +private: + QEglFSKmsDevice *m_device = nullptr; + QEglFSKmsEventReaderThread *m_thread = nullptr; +}; + +QT_END_NAMESPACE + +#endif // QEGLFSKKMSEVENTREADER_H |