qqnxeglwindow.h

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// Copyright (C) 2013 BlackBerry Limited. All rights reserved.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QQNXEGLWINDOW_H
#define QQNXEGLWINDOW_H
 
#include "qqnxwindow.h"
#include <QtCore/QMutex>
 
QT_BEGIN_NAMESPACE
 
class QQnxGLContext;
 
class QQnxEglWindow : public QQnxWindow
{
public:
    QQnxEglWindow(QWindow *window, screen_context_t context, bool needRootWindow);
    ~QQnxEglWindow();
 
    EGLSurface surface() const;
 
    bool isInitialized() const;
    void ensureInitialized(QQnxGLContext *context);
 
    void setGeometry(const QRect &rect) override;
 
    QSurfaceFormat format() const override { return m_format; }
 
protected:
    int pixelFormat() const override;
    void resetBuffers() override;
 
private:
    void createEGLSurface(QQnxGLContext *context);
    void destroyEGLSurface();
 
    QSize m_requestedBufferSize;
 
    // This mutex is used to protect access to the m_requestedBufferSize
    // member. This member is used in conjunction with QQnxGLContext::requestNewSurface()
    // to coordinate recreating the EGL surface which involves destroying any
    // existing EGL surface; resizing the native window buffers; and creating a new
    // EGL surface. All of this has to be done from the thread that is calling
    // QQnxGLContext::makeCurrent()
    mutable QMutex m_mutex;
 
    QAtomicInt m_newSurfaceRequested;
    EGLDisplay m_eglDisplay;
    EGLConfig m_eglConfig;
    EGLSurface m_eglSurface;
    QSurfaceFormat m_format;
};
 
QT_END_NAMESPACE
 
#endif // QQNXEGLWINDOW_H