qeglfsvivintegration.cpp

Go to the documentation of this file.

// Copyright (C) 2016 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
 
#include "qeglfsvivintegration.h"
#include <EGL/eglvivante.h>
#include <QDebug>
 
#ifdef Q_OS_INTEGRITY
extern "C" void VivanteInit(void);
#endif
 
QT_BEGIN_NAMESPACE
 
void QEglFSVivIntegration::platformInit()
{
    QEglFSDeviceIntegration::platformInit();
 
    int width, height;
 
    bool multiBufferNotEnabledYet = qEnvironmentVariableIsEmpty("FB_MULTI_BUFFER");
    bool multiBuffer = qEnvironmentVariableIsEmpty("QT_EGLFS_IMX6_NO_FB_MULTI_BUFFER");
    if (multiBufferNotEnabledYet && multiBuffer) {
        qWarning() << "QEglFSVivIntegration will set environment variable FB_MULTI_BUFFER=2 to enable double buffering and vsync.\n"
                   << "If this is not desired, you can override this via: export QT_EGLFS_IMX6_NO_FB_MULTI_BUFFER=1";
        qputenv("FB_MULTI_BUFFER", "2");
    }
 
#ifdef Q_OS_INTEGRITY
    VivanteInit();
    mNativeDisplay = fbGetDisplay();
#else
    mNativeDisplay = static_cast<EGLNativeDisplayType>(fbGetDisplayByIndex(framebufferIndex()));
#endif
 
    fbGetDisplayGeometry(mNativeDisplay, &width, &height);
    mScreenSize.setHeight(height);
    mScreenSize.setWidth(width);
}
 
QSize QEglFSVivIntegration::screenSize() const
{
    return mScreenSize;
}
 
EGLNativeDisplayType QEglFSVivIntegration::platformDisplay() const
{
    return mNativeDisplay;
}
 
EGLNativeWindowType QEglFSVivIntegration::createNativeWindow(QPlatformWindow *window, const QSize &size, const QSurfaceFormat &format)
{
    Q_UNUSED(window);
    Q_UNUSED(format);
 
    EGLNativeWindowType eglWindow = static_cast<EGLNativeWindowType>(fbCreateWindow(mNativeDisplay, 0, 0, size.width(), size.height()));
    return eglWindow;
}
 
void QEglFSVivIntegration::destroyNativeWindow(EGLNativeWindowType window)
{
    fbDestroyWindow(window);
}
 
QT_END_NAMESPACE