qeglfsvivwlintegration.cpp

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// 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

// Qt-Security score:significant reason:default

#include "qeglfsvivwlintegration.h"

#include <EGL/eglvivante.h>

#include <QDebug>

#include <wayland-server.h>

QT_BEGIN_NAMESPACE

void QEglFSVivWaylandIntegration::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() << "QEglFSVivWaylandIntegration 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");

    mWaylandDisplay = wl_display_create();

    mNativeDisplay = static_cast<EGLNativeDisplayType>(fbGetDisplay(mWaylandDisplay));

    fbGetDisplayGeometry(mNativeDisplay, &width, &height);

    mScreenSize.setHeight(height);

    mScreenSize.setWidth(width);

void QEglFSVivWaylandIntegration::platformDestroy()

    wl_display_destroy(mWaylandDisplay);

QSize QEglFSVivWaylandIntegration::screenSize() const

    return mScreenSize;

EGLNativeDisplayType QEglFSVivWaylandIntegration::platformDisplay() const

    return mNativeDisplay;

EGLNativeWindowType QEglFSVivWaylandIntegration::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 QEglFSVivWaylandIntegration::destroyNativeWindow(EGLNativeWindowType window)

    fbDestroyWindow(window);

void *QEglFSVivWaylandIntegration::wlDisplay() const

    return mWaylandDisplay;

QT_END_NAMESPACE