qt-everywhere-src-5.15.1/qtwayland/src/client/qwaylandvulkanwindow.cpp

/****************************************************************************
**
** Copyright (C) 2019 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qwaylandvulkanwindow_p.h"

QT_BEGIN_NAMESPACE

namespace QtWaylandClient {

QWaylandVulkanWindow::QWaylandVulkanWindow(QWindow *window, QWaylandDisplay *display)
    : QWaylandWindow(window, display)
{
}

QWaylandVulkanWindow::~QWaylandVulkanWindow()
{
    if (m_surface) {
        QVulkanInstance *inst = window()->vulkanInstance();
        if (inst)
            static_cast<QWaylandVulkanInstance *>(inst->handle())->destroySurface(m_surface);
    }
}

QWaylandWindow::WindowType QWaylandVulkanWindow::windowType() const
{
    return QWaylandWindow::Vulkan;
}

VkSurfaceKHR *QWaylandVulkanWindow::surface()
{
    if (m_surface)
        return &m_surface;

    QVulkanInstance *vulkanInstance = window()->vulkanInstance();
    if (!vulkanInstance) {
        qWarning() << "Attempted to create Vulkan surface without an instance; was QWindow::setVulkanInstance() called?";
        return nullptr;
    }

    auto *waylandVulkanInstance = static_cast<QWaylandVulkanInstance *>(vulkanInstance->handle());
    m_surface = waylandVulkanInstance->createSurface(this);

    return &m_surface;
}

} // namespace QtWaylandClient

QT_END_NAMESPACE