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path: root/examples/quick/scenegraph/rendernode/customrenderitem.cpp
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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
**   * Redistributions in binary form must reproduce the above copyright
**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of The Qt Company Ltd nor the names of its
**     contributors may be used to endorse or promote products derived
**     from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "customrenderitem.h"
#include <QQuickWindow>
#include <QSGRendererInterface>

#include "openglrenderer.h"
#include "d3d12renderer.h"
#include "softwarerenderer.h"

CustomRenderItem::CustomRenderItem(QQuickItem *parent)
    : QQuickItem(parent)
{
    // Our item shows something so set the flag.
    setFlag(ItemHasContents);
}

QSGNode *CustomRenderItem::updatePaintNode(QSGNode *node, UpdatePaintNodeData *)
{
    QSGRenderNode *n = static_cast<QSGRenderNode *>(node);
    if (!n) {
        QSGRendererInterface *ri = window()->rendererInterface();
        if (!ri)
            return nullptr;
        switch (ri->graphicsApi()) {
            case QSGRendererInterface::OpenGL:
#ifndef QT_NO_OPENGL
                n = new OpenGLRenderNode(this);
                break;
#endif
            case QSGRendererInterface::Direct3D12:
#if QT_CONFIG(d3d12)
                n = new D3D12RenderNode(this);
                break;
#endif
            case QSGRendererInterface::Software:
                n = new SoftwareRenderNode(this);
                break;

            default:
                return nullptr;
        }
    }

    return n;
}