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// Copyright (C) 2016 Research In Motion
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QQnxWindowGrabber_H
#define QQnxWindowGrabber_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.
//
#define EGL_EGLEXT_PROTOTYPES
#define GL_GLEXT_PROTOTYPES
#include <EGL/egl.h>
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include <EGL/eglext.h>
#include <QAbstractNativeEventFilter>
#include <QObject>
#include <QSize>
#include <QTimer>
#include <memory>
#include <screen/screen.h>
QT_BEGIN_NAMESPACE
class QRhi;
class QQnxWindowGrabberImage;
class QQnxWindowGrabber : public QObject, public QAbstractNativeEventFilter
{
Q_OBJECT
public:
struct BufferView
{
int width = -1;
int height = -1;
int stride = -1;
unsigned char *data = nullptr;
static constexpr int pixelSize = 4; // BGRX8888;
};
explicit QQnxWindowGrabber(QObject *parent = 0);
~QQnxWindowGrabber();
void setFrameRate(int frameRate);
void setWindowId(const QByteArray &windowId);
void setRhi(QRhi *rhi);
void start();
void stop();
void pause();
void resume();
void forceUpdate();
bool nativeEventFilter(const QByteArray &eventType, void *message, qintptr *result) override;
bool handleScreenEvent(screen_event_t event);
QByteArray windowGroupId() const;
bool isEglImageSupported() const;
int getNextTextureId();
BufferView getNextBuffer();
signals:
void updateScene(const QSize &size);
private slots:
void triggerUpdate();
private:
bool selectBuffer();
void resetBuffers();
void checkForEglImageExtension();
QTimer m_timer;
QByteArray m_windowId;
screen_window_t m_windowParent;
screen_window_t m_window;
screen_context_t m_screenContext;
std::unique_ptr<QQnxWindowGrabberImage> m_frontBuffer;
std::unique_ptr<QQnxWindowGrabberImage> m_backBuffer;
QSize m_size;
QRhi *m_rhi;
bool m_active;
bool m_eglImageSupported;
bool m_startPending;
};
QT_END_NAMESPACE
#endif
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