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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
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**
**
**
****************************************************************************/
#ifndef QEGLFSKKMSEVENTREADER_H
#define QEGLFSKKMSEVENTREADER_H
#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
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